Cylinder head body, single cylinder bolt system and crane

Abstract

The invention relates to a cylinder head body, a single cylinder bolt system and a crane, wherein, the cylinder head body comprises at least two branch bodies of cylinder head body, a cooperative positioning structure and a fixed connection structure are provided between two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the branch body of cylinder head body has a cylindrical branch body structure, the cylindrical branch body structures of the at least two branch bodies of cylinder head body are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form a barrel. The cylinder head body is composed of at least two branch bodies of cylinder head body in a dismountable way, which are cooperatively positioned and detachably connected by the cooperative positioning structure and the fixed connection structure, respectively, such that the cylinder head body may be dismounted into branch body structures during assembling, assembling manner thereof is not restricted by traditional assembling sequence, thereby improving the assembling efficiency and production efficiency. Moreover, the branch body structure of the cylinder had body is easy to dismount and maintain, which saves maintenance cost.

Claims

1. A cylinder head body, comprising at least two branch bodies of cylinder head body, a cooperative positioning structure and a fixed connection structure are provided between two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the branch body of cylinder head body has a cylindrical branch body structure, the cylindrical branch body structures of the at least two branch bodies of cylinder head body are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form a barrel; the cooperative positioning structure comprises a rabbet cooperatively formed by a concave rabbet and a convex rabbet provided on the butting end faces of two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, respectively.

2. The cylinder head body according to claim 1, wherein, the fixed connection structure comprises a connection plate provided on two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the connection plate is provided with a bolt hole, two adjacent branch bodies of cylinder head body are detachably connected by a bolt passing through the bolt hole.

3. The cylinder head body according to claim 1, wherein, the fixed connection structure comprises a first buckle and a second buckle respectively provided on two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, two adjacent branch bodies of cylinder head body are detachably connected by buckling the first buckle on the second buckle.

4. The cylinder head body according to claim 1, wherein, the branch bodies of cylinder head body further have a branch body structure of end face flange, the branch body structures of end face flange of the at least two branch bodies of cylinder head body are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form an end face flange, the barrel protrudes by a predetermined length beyond the end face flange.

5. The cylinder head body according to claim 4, wherein, the cooperative positioning structure further comprises a bolt shaft and a bolt hole provided on the butting end faces of two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the bolt shaft is inserted into the bolt hole to realize cooperative mounting.

6. The cylinder head body according to claim 1, wherein, the at least two branch bodies of cylinder head body comprise a first branch body of cylinder head body and a second branch body of cylinder head body, which respectively have a first cylindrical branch body and a second cylindrical branch body, the cooperative positioning structure comprises a rabbet cooperatively formed by a concave rabbet and a convex rabbet respectively provided on the butting end faces of the first cylindrical branch body and the second cylindrical branch body, the fixed connection structure comprises a connection plate provided on the first cylindrical branch body and the second cylindrical branch body, the connection plate is provided with a bolt hole, the first branch body of cylinder head body and the second branch body of cylinder head body are cooperatively positioned by the rabbet and are detachably connected by means of a bolt passing through the bolt hole to form a barrel.

7. A single cylinder bolt system, having a cylinder head, the cylinder head comprises a cylinder head body according to claim 1.

8. A crane, comprising a single cylinder bolt system according to claim 7.

9. A cylinder head body, comprising at least two branch bodies of cylinder head body, a cooperative positioning structure and a fixed connection structure are provided between two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the branch body of cylinder head body has a cylindrical branch body structure, the cylindrical branch body structures of the at least two branch bodies of cylinder head body are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form a barrel; the cooperative positioning structure comprises a plurality of cooperating bosses and grooves respectively provided on the butting end faces of two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body.

10. The cylinder head body according to claim 9, wherein, the plurality of cooperating bosses and grooves are provided equally spaced apart along the axial direction of the cylinder head body.

11. The cylinder head body according to claim 9, wherein, the fixed connection structure comprises a connection plate provided on two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the connection plate is provided with a bolt hole, two adjacent branch bodies of cylinder head body are detachably connected by a bolt passing through the bolt hole.

12. The cylinder head body according to claim 9, wherein, the fixed connection structure comprises a first buckle and a second buckle respectively provided on two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, two adjacent branch bodies of cylinder head body are detachably connected by buckling the first buckle on the second buckle.

13. The cylinder head body according to claim 9, wherein, the branch bodies of cylinder head body further have a branch body structure of end face flange, the branch body structures of end face flange of the at least two branch bodies of cylinder head body are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form an end face flange, the barrel protrudes by a predetermined length beyond the end face flange.

14. The cylinder head body according to claim 13, wherein, the cooperative positioning structure further comprises a bolt shaft and a bolt hole provided on the butting end faces of two adjacent branch bodies of cylinder head body of the at least two branch bodies of cylinder head body, the bolt shaft is inserted into the bolt hole to realize cooperative mounting.

15. The cylinder head body according to claim 9, wherein, the at least two branch bodies of cylinder head body comprise a first branch body of cylinder head body and a second branch body of cylinder head body, which respectively have a first cylindrical branch body and a second cylindrical branch body, the cooperative positioning structure comprises a rabbet cooperatively formed by a concave rabbet and a convex rabbet respectively provided on the butting end faces of the first cylindrical branch body and the second cylindrical branch body, the fixed connection structure comprises a connection plate provided on the first cylindrical branch body and the second cylindrical branch body, the connection plate is provided with a bolt hole, the first branch body of cylinder head body and the second branch body of cylinder head body are cooperatively positioned by the rabbet and are detachably connected by means of a bolt passing through the bolt hole to form a barrel.

16. A single cylinder bolt system, having a cylinder head, the cylinder head comprises a cylinder head body according to claim 9.

17. A crane, comprising a single cylinder bolt system according to claim 16.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Drawings explained here are used to provide further understanding of the present invention, which constitute a portion of the present application. The schematic embodiments and description of the present utility model are only used for explaining the present invention, and do not constitute improper delimitations of the present invention.

(2) In the drawings:

(3) FIG. 1 is a schematic view of the structure of an existing cylinder head body;

(4) FIG. 2 is a schematic front view of the structure of an embodiment of a cylinder head body of the present invention;

(5) FIG. 3 is a schematic left view of the structure of an embodiment of a cylinder head body of the present invention;

(6) FIG. 4 is a schematic view of the structure of a first branch body of cylinder head body of the present invention;

(7) FIG. 5 is a schematic view of the structure of a second branch body of cylinder head body of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(8) The technical solution of the present invention will be further described in details through drawings and embodiments below.

(9) Embodiments of the present invention are used for further explaining the inventive concept, the technical problem to be solved, the technical features constituting the technical solution and the technical effects of the present invention. It is necessary to explain that, description of these embodiments does not constitute delimitations of the present invention. Besides, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

(10) As the assembling sequence of existing cylinder head bodies is fixed, assembling of the cylinder head bodies are not flexible, causing low production efficiency and difficult maintenance. Thus, the present invention designs a cylinder head body, which is composed of at least two branch bodies of cylinder head body in a dismountable way, which are cooperatively positioned and detachably connected by a cooperative positioning structure and a fixed connection structure, respectively, such that the cylinder head body may be dismounted into branch structures during assembling, assembling manner thereof is not restricted by traditional assembling sequence, assembling efficiency and production efficiency are improved. Moreover, the cylinder head body is easy to dismount and maintain, which saves maintenance cost.

(11) FIG. 2 is a schematic view of the structure of an embodiment of a cylinder head body of the present invention. The cylinder head body is composed of two branch body structures, i.e., a first branch body 1 of cylinder head body and a second branch body 2 of cylinder head body. A cooperative positioning structure and a fixed connection structure are provided between the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body. The first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body respectively have a first cylindrical branch body 31 and a second cylindrical branch body 32. The first cylindrical branch body 31 and the second cylindrical branch body 32 are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form a barrel 3 together.

(12) In the preferred schematic embodiment of the present invention, the cylinder head body is composed of the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body in a dismountable way, which are cooperatively positioned and detachably connected by the cooperative positioning structure and the fixed connection structure, respectively. During assembling, not influenced by the welded flange on the cylinder barrel, the cylinder head body may be mounted at both sides of the welded flange, which avoids that insertion direction and mounting side of traditional one-piece cylinder head bodies are fixed due to influence of the welded flange, and makes the assembling direction of the cylinder head body flexible. Correspondingly, the cylinder head body is not influenced by other components along the axial direction of the cylinder barrel during assembling and disassembling, and it has an advantage of convenient assembling, disassembling and maintenance. Besides, during assembling of the cylinder, the cylinder head body won't influence assembling of other components, which avoids influencing assembling of other components due to insufficient supply of cylinder head bodies and improves production efficiency.

(13) As shown by FIGS. 2-5, the cooperative positioning structure comprises a rabbet 4 cooperatively formed by a concave rabbet 41 and a convex rabbet 42 respectively provided on the butting end faces of the first cylindrical branch body 31 and the second cylindrical branch body 32. The cooperative positioning structure uses a rabbet 4 for centering and connection. Positioning of the rabbet 4 is accurate, such that the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are stressed axially into one piece, and the butting end faces of the first cylindrical branch body 31 and the second cylindrical branch body 32 are stressed uniformly at two sides when stressed axially, and the rabbet 4 is a connection device that is easy to machine and has favorable feasibility. The cooperative positioning structure may also be opposing concave and convex rabbet structures respectively provided on the two butting end faces of the first cylindrical branch body 31 and the second cylindrical branch body 32.

(14) As shown by FIGS. 2-5, the cooperative positioning structure may also be a plurality of cooperating bosses and grooves respectively provided on the butting end faces of the first cylindrical branch body 31 and the second cylindrical branch body 32. The bosses and grooves are cooperatively positioned, such that the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are stressed axially into one piece. Moreover, bosses and grooves are easy to machine and have favorable feasibility. Wherein, the plurality of bosses and grooves are provided equally or not equally spaced apart along the axial direction of the cylinder head body. Equally-spaced configuration is a preferred embodiment, which enables both sides of the butting end faces to be uniformly stressed when the first cylindrical branch body 31 and the second cylindrical branch body 32 are stressed axially. Certainly, the cooperative positioning structure may also be other conventional devices that can realize cooperating positioning.

(15) As shown by FIGS. 2-5, the fixed connection structure comprises a connection plate 7 provided on the first cylindrical branch body 31 and the second cylindrical branch body 32. The connection plate 7 is provided with a bolt hole 71. The first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are cooperatively positioned by the rabbet 4 and are detachably connected by means of a bolt 8 passing through the bolt hole 71 to form a barrel 3 together. The bolt 8 and the connection plate 7 firmly connect the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body, such that the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body can bear a force perpendicular to the butting end faces. Moreover, bolted connection is easy to realize and has a high connection stability. The fixed connection structure may also comprise a first buckle and a second buckle respectively provided on the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body. The first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are detachably connected by buckling the first buckle on the second buckle. The first buckle and the second buckle firmly connect the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body, such that the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body can also bear a force perpendicular to the butting end faces. Moreover, buckle connection is easy to realize and has a high connection stability. Certainly, the fixed connection structure may also be other conventional devices that can realize fixed connection.

(16) As an improvement of the abovementioned preferred schematic embodiment, as shown by FIGS. 2-5, the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body respectively have a first branch body of end face flange 51 and a second branch body of end face flange 52 which are cooperatively positioned by means of the cooperative positioning structure and are detachably connected by means of the fixed connection structure to form an end face flange 5. The barrel 3 protrudes by a predetermined length beyond the end face flange 5. The barrel 3 is machined such as to protrude, by a predetermined length, over the end face flange 5, the barrel 3 is inserted in the groove of the flange welded on the barrel 3. Then the end face flange 5 is connected to the flange welded on the cylinder barrel by a bolt, to better enable the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body to bear an axial force and a force perpendicular to the butting end faces of the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body, which further improves stability and reliability of connection of the cylinder head body and thus enhances the tightness and stability of the mating between the cylinder head and the cylinder. Further, as shown by FIGS. 2-5, the cooperative positioning structure further comprises a bolt shaft 6 and a bolt hole 9 provided on the butting end faces of the first branch body of end face flange 51 and the second branch body of end face flange 52. The bolt shaft 6 is inserted into the bolt hole 9 to realize cooperative mounting. Positioning and mating of the bolt hole 9 and the bolt shaft 6 make positioning of the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body more accurate, and further ensure that the butting end faces are stressed uniformly at both sides when the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are stressed axially, further improving the connection stability and reliability of the cylinder head body. Certainly, the bolt shaft 6 may be directly welded on the butting end face of the first branch body of end face flange 51 or the second branch body of end face flange 52, so as to make positioning and mounting more convenient and rapid.

(17) Thus, the mounting process of an embodiment of the present invention is as follows:

(18) As shown by FIGS. 2-5, firstly, the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are oppositely butted at both sides of the cylinder barrel, the concave rabbet 41 and the convex rabbet 42 of the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body are connected by insertion, at the same time, the bolt shaft 6 and the bolt hole 9 are cooperatively mounted in alignment, wherein the bolt shaft 6 is first put into the bolt hole 9 of either one of the first branch body of end face flange 51 and the second branch body of end face flange 52 and then it is mounted in cooperation with the bolt hole 9 of the other one; then the bolt 8 and the bolt hole 71 firmly connect the first branch body 1 of cylinder head body and the second branch body 2 of cylinder head body into one piece; finally, the barrel 3 which protrudes over the end face flange 5 is inserted in the groove of the flange welded on the cylinder barrel, and the end face flange 5 and the flange welded on the cylinder barrel are connected through a bolt.

(19) The present invention further provides a single cylinder bolt system having a cylinder head which comprises the abovementioned cylinder head body. The cylinder head body of the present invention is not restricted by the assembling sequence, which realizes flexible mounting, convenient dismounting and maintenance, and is highly reliable. Correspondingly, the single cylinder bolt system provided by the present invention has the abovementioned advantageous technical effects and thus will not be repeated here.

(20) The present invention further provides a crane. The crane has a single cylinder bolt system as described above. The cylinder head of the single cylinder bolt system of the present invention is not restricted by the assembling sequence during mounting and dismounting process of the cylinder head body, which realizes flexible mounting, convenient dismounting and maintenance, and is highly reliable. Correspondingly, the crane provided by the present invention has the abovementioned advantageous technical effects and thus will not be repeated here.

(21) The combined embodiments above describe the embodiments of the present invention in details, but the present invention is not limited to the described embodiments. For example, the cylinder head body may also be spliced into an one-piece structure by a plurality of branch body structures of cylinder head body (for example, three) in a dismountable way, or, butting may be realized by other positioning and fastening manners. For those skilled in the art, variations, modifications, equivalent substitutions and transformations of these embodiments without departing from the principles and essential spirits of the present invention shall still fall into the protection scopes of the present invention.