Assembly kit for cable winches and method for converting a cable winch

Abstract

An assembly kit for cable winches, comprising a cable drum, a drive motor, a transmission unit, and a supporting frame, where the assembly kit includes various transmission housing parts for the transmission unit in order to enable the assembly of a cable winch in a C shape or in a quasi-coaxial shape. A method for converting a cable winch, comprising a cable drum, a drive motor, a transmission unit, and a supporting frame, between a C-shape arrangement and a quasi-coaxial-shape arrangement, for which purpose the transmission unit, in the case of the use of different housings, in particular specific housing shells that can be assembled in order to form the different housings, is assembled differently for the C shape or coaxial shape while the same parts, in particular identical shafts, are used within the particular housing.

Claims

1. A construction kit for cable winches comprising a cable drum, a drive motor, a transmission unit and a supporting frame, wherein the construction kit includes different transmission housing parts for the transmission unit in order to permit assembly of a cable winch in a C shape or quasi-coaxial shape as desired, for which purpose, a first housing for the C shape and a different second housing for the quasi-coaxial shape are provided as different transmission housing parts, the first housing is formed in such a way that the transmission unit can be assembled as a first transmission unit for the C shape and therewith the design of the cable winch to be assembled can be fixed as the C shape, and the second housing is formed in such a way that the transmission unit can be assembled as a second transmission unit for the quasi-coaxial shape and therewith the design of the cable winch to be assembled can be fixed as the quasi-coaxial shape.

2. The construction kit as claimed in claim 1, wherein the first housing can be fitted together from first housing shells and the second housing can be fitted together from second housing shells.

3. The construction kit as claimed in claim 2, wherein the first housing is more elongate than the second housing.

4. The construction kit as claimed in claim 3, wherein the housings are formed in such a way that in order to form the first or second transmission unit in each case identical shafts, comprising an output shaft, two intermediate shafts and an input shaft can be mounted in the corresponding housing in a different arrangement for the C shape and the quasi-coaxial shape.

5. The construction kit as claimed in claim 3, wherein the construction kit for both transmission units includes the same parts in the form of shafts, comprising an output shaft, two intermediate shafts and an input shaft for assembly of the cable winch, of the corresponding transmission unit in the C shape or quasi-coaxial shape.

6. The construction kit as claimed in claim 3, wherein the construction kit additionally includes different input shafts for the C shape and quasi-coaxial shape.

7. The construction kit as claimed in claim 3, wherein a plurality of shafts of the transmission unit in the C shape are arranged lying almost on a line as seen in their longitudinal direction, with two intermediate shafts between an input shaft and an output shaft.

8. The construction kit as claimed in claim 3, wherein a plurality of shafts of the transmission unit in the quasi-coaxial shape are disposed in a nested manner, with an input shaft between an output shaft and two intermediate shafts.

9. The construction kit as claimed in claim 1, wherein the first housing is more elongate than the second housing.

10. The construction kit as claimed in claim 1, wherein the housings are formed in such a way that in order to form the first or second transmission unit in each case identical shafts can be mounted in the corresponding housing in a different arrangement for the C shape and the quasi-coaxial shape.

11. The construction kit as claimed in claim 10, wherein the shafts comprise an output shaft, two intermediate shafts and an input shaft.

12. The construction kit as claimed in claim 1, wherein the construction kit for both transmission units includes the same parts in the form of shafts for assembly of the cable winch of the corresponding transmission unit in the C shape or quasi-coaxial shape.

13. The construction kit as claimed in claim 12, wherein the shafts comprise an output shaft, two intermediate shafts and an input shaft.

14. The construction kit as claimed in claim 1, wherein the construction kit additionally includes different input shafts for the C shape and quasi-coaxial shape.

15. The construction kit as claimed in claim 1, wherein the shafts of the transmission unit in the C shape are arranged lying almost on a line as seen in their longitudinal direction.

16. The construction kit as claimed in claim 15, further comprising two intermediate shafts between an input shaft and an output shaft.

17. The construction kit as claimed in claim 1, wherein a plurality of shafts of the transmission unit in the quasi-coaxial shape are disposed in a nested manner.

18. The construction kit as claimed in claim 17, wherein the shafts of the transmission unit comprise an input shaft between an output shaft and two intermediate shafts.

19. A method for converting a cable winch, including a cable drum, a drive motor, a transmission unit, shafts and a supporting frame between a C shape arrangement and a quasi-coaxial shape arrangement, said method comprising: providing different transmission housing parts comprising a first housing for the C shape and a different second housing for the quasi-coaxial shape; and fitting the transmission unit within a respective one of the first housing and second housing to form the C shape or quasi-coaxial shape using the same shafts.

20. The method of claim 19, wherein the first housing comprises first housing shells and wherein the second housing comprises second housing shells, and wherein the method further comprises fitting the first housing shells together to form the first housing and fitting the second housing shells together to form the second housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a perspective and schematic exploded view of a construction kit in accordance with an embodiment of the invention for cable winches;

(2) FIG. 2 is a front view of a motor-transmission unit arrangement for the C shape with the transmission housing cover open;

(3) FIG. 3 is a partial cross-sectional view through the motor-transmission unit arrangement for the C shape of FIG. 2;

(4) FIG. 4 is a front view of a motor-transmission unit arrangement for the quasi-coaxial shape with the drive flange removed and

(5) FIG. 5 is a partial cross-sectional view through the motor-transmission unit arrangement for the quasi-coaxial shape.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(6) FIG. 1 shows a perspective and schematic exploded view of a construction kit 1 in accordance with an embodiment of the invention for cable winches. This overview shows the modular construction of the construction kit 1 in accordance with the invention or of the cable winch which can be fitted together from the parts of the construction kit 1 in the C shape or quasi-coaxial shape as desired. The construction kit designated as a whole by 1 is thus a type of modular cable winch system and comprises as essential parts a drive motor 2 or, as shown in FIG. 1, two drive motors 2 which are preferably formed as electric motors, and the components mentioned below, with which a first transmission unit 3A for the C shape and a second transmission unit 3B for the quasi-coaxial shape can be assembled. By means of the driving connection of the drive motor 2 to one of the two transmission units 3A, 3B, a motor-transmission unit arrangement can be produced and therefore the design of the cable winch to be assembled or produced can be fixed as a C shape or quasi-coaxial shape. In order to form the C shape, the first transmission unit 3A comprises first housing shells 11A which can be fitted together to form a first housing 10A of the transmission unit 3A. In a corresponding manner, in order to form the quasi-coaxial shape, the second transmission unit 3B includes second housing shells 11B which can be fitted together to form a second housing 10B of the second transmission unit 3B. The differences between the housings 10A and 10B or the housing shells 11A and 11B thereof are explained in more detail below with reference to the corresponding figures.

(7) The construction kit 1 also includes a cable drum 4 and a supporting frame 5 by which the cable drum 4 is received and rotatably mounted. The cable drum 4 can be driven by the corresponding motor-transmission unit arrangement. The supporting frame 5 supporting the cable drum 4 can be fitted together with the corresponding motor-transmission unit arrangement to form a cable winch in the C shape or quasi-coaxial shape as desired. In the present case, for better understanding the illustration indicates that, in order to form a monorail travelling crane, the cable winch can be attached to the bridge 6 thereof.

(8) For connection to the supporting frame 5 of the cable winch, the bridge 6 includes pierced fastening points 7 which are provided in pairs on the outside in the end region on the long sides.

(9) For this purpose, the rods 8 of the supporting frame 5 pass through the fastening points 7.

(10) The supporting frame 5 comprises a substantially rectangular or square face plate 9 which receives one of three rods 8 respectively in its corners and also centrally provides a mounting for the cable drum 4.

(11) On the side facing away from the face plate 9, the three rods 8 engage in the corresponding housing 10A or 10B of the respective transmission unit 3A or 3B in an analogous manner in order to be able to drivingly connect the transmission unit 3A, 3B to the cable drum 4.

(12) Depending on the desired design, the drive motor 2 can be flange-mounted on the transmission unit 3A, 3B or the housing 10A, 10B thereof on the same side as the cable drum 4 (C shape) or on the opposite side of the cable drum 4 (quasi-coaxial shape).

(13) The transmission units 3A and 3B include, in addition to the different housing shells 11A and 11B of the respective housing 10A, 10B for the C shape or quasi-coaxial shape, other like parts, in particular shafts, pinions, gear wheels etc. which are merely arranged differently within the respective housing shells 11A (C shape) or 11B (quasi-coaxial shape). For this purpose, the housing shells 11A, 11B are dimensioned in a correspondingly different manner so that the required mounting and arrangement of the parts described below is possible therein in order to form the C shape or quasi-coaxial shape.

(14) This is explained hereinunder with reference to FIGS. 2 to 5.

(15) In FIGS. 2 and 3 the C shape is shown in more detail, whereas in FIGS. 4 and 5 the quasi-coaxial shape is shown in more detail.

(16) It will be seen that each transmission unit 3A, 3B always includes the following four shafts: a first shaft 12 which serves as an input shaft of the transmission unit 3A, 3B and can be drivingly connected to the motor driven shaft, a second shaft 13 which serves as an output shaft of the transmission unit 3A, 3B and therefore as a cable drum drive shaft, and a third shaft 14 and a fourth shaft 15 which each serve as an additional shaft.

(17) In the C shape design, the shafts 12 to 15 lie with their longitudinal centre axes approximately on an imaginary line in the illustration of FIG. 2, i.e. as seen in the longitudinal direction of the shafts 12 to 14. For this purpose, the shafts 12 to 14 are arranged in such a way that they extend in parallel with one another approximately within a common plane. In so doing, the two shafts 14, 15 serving as intermediate shafts are disposed, as seen in the longitudinal direction thereof, between the shaft 12 serving as an input shaft and the shaft 13 serving as an output shaft. For this purpose, the first housing 10A for the C shape is more elongate than the second housing 10B for the quasi-coaxial shape since the corresponding offset between the shafts 12 and 13 mounted in the housing 10A must be achieved in order to achieve the C shape.

(18) In contrast, in the quasi-coaxial shape design, the shafts 12 to 15 appear to be nested. In this case, the input shaft (shaft 12) is disposed between the output shaft (shaft 13) and the two intermediate shafts (shafts 14 and 15). In this way, the housing 10B can be less elongate than the housing 10A since only the small offset required for this quasi-coaxial shape must be achieved between the shafts 12 and 13 mounted in the housing 10B and therefore the nested arrangement of the shafts 12 to 15 is more compact than the arrangement of the shafts 12 to 15 for the C shape. In this way, compared with the C shape, the quasi-coaxial shape is similarly slimline like a complete coaxial shape. In particular, in this case the intermediate shafts (shafts 14 and 15), as seen in their longitudinal direction, are disposed around the input shaft (shaft 12) and in particular on one side of the input shaft (shaft 12) and the output shaft on an opposite side of the input shaft. In this way, the input shaft is disposed between the output shaft and the two intermediate shafts. In contrast, in the C shape both intermediate shafts (shafts 14 and 15) are disposed on a side of the input shaft (shaft 12) facing the output shaft (shaft 13).

(19) The shafts 12, 14 and 15 each comprise a pinion 12R, 14R, 15R designated with the addition R, and a gear wheel 13Z, 14Z, 15Z designated with the addition Z is respectively allocated to the shafts 13, 14 and 15. The pinions 12R, 14R, 15R and the gear wheels 13Z, 14Z, 15Z mesh in a corresponding manner as indicated in FIGS. 3 and 5.

(20) Both in the C shape and also in the quasi-coaxial shape, the shafts 12 to 15 similarly mesh with their pinions R or gear wheels Z from the input shaft to the output shaft in the sequence 12-14-15-13 or 12R 14Z 14R 15Z 15R 13Z, so that the same transmission ratio is achieved regardless of the design.

(21) As already described above, the first shaft 12 serving as an input shaft can be formed differently for the two designs, but the remaining shafts 13, 14, 15 with their pinions and gear wheels are used in the same way, i.e. identically, for both designs and are disposed in a correspondingly different way in the respective housing 10A or 10B only as described depending on the design.