Device for screwing and unscrewing bolts and screws by means of a motor-driven screwdriving tool

Abstract

A device for screwing and unscrewing bolts and screws uses a motor-driven screwdriving tool, which is preferably used in the track region of railroad facilities. The device makes it possible to screw and unscrew screws, nuts and bolts reliably and effectively, preferably in the context of railroad use. The appliance is intended to have a low weight and a high output over long periods of use, can be operated with one hand, is specifically pre-oriented to the various applications and has a modular construction. To this end, the device has a central rib which serves as a receptacle for all of the attachments and fittings to be installed in a modular manner.

Claims

1. Device for screwing and unscrewing bolts and screws by a motor-driven screwing tool, which is preferably used in a track region of railroad facilities and comprises a two-shell housing, wherein the device has a central rib (1) which serves as a reception area for all add-on or installed modular components, and wherein the central rib (1) has a first and a second U-shaped inserts which are open to the top and wherein the first U-shaped insert is meant for a battery (4) and the second U-shaped insert is meant for a grab handle (5), a compartment (6) that is open to the side and is meant for a control device (7), a reception area (8) that is aligned horizontally upward and is meant for a display (9), a U-shaped insert (10) that is open to the bottom and is meant for the machine-drive (11), and a downward-facing insert (12) for an illumination device (13), which are arranged preferably inside a two-shell housing.

2. Device according to claim 1, wherein a sheath (16) that is guided around the rotating parts (15) is attached at the machine-drive (11) or at the two-shell housing (14) or at the central rib (1), with a preferably U-shaped counter torque wrench (17) being formed at the sheath (16).

3. Device according to claim 2, wherein the counter torque wrench (17) has a fork-shaped recess (18; 19) at both of its ends.

4. Device according to claim 2, wherein a special slewing ring (21) is arranged between the sheath (16) and the rotating parts (15).

5. Device according to claim 2, wherein the counter torque wrench (17) is designed so as to be rotatable.

6. Device according to claim 2, wherein the rotating parts (15) are formed as drill chuck, wherein a gearing (21) and then a socket seating (22) are arranged at the lower end of the gear box.

7. Device according to claim 1, wherein the display (9) is arranged in a rotatable manner, so that the device can be used in two directions in the same orientation.

8. Device according to claim 1, wherein the display (9) has a rotatable knob (23) for selecting different menu items, wherein each menu item can be adjusted and calibrated according to a special kind of screw, a special fastening variant of the tracks or a special torque, among other things.

9. Device according to claim 1, wherein the display (9) has one or a plurality of set buttons (30) for menu control and/or for activating the selected menu items.

10. Device according to claim 1, wherein the display (9) is designed so as to have an angled position and comprises a sun shield (24).

11. Device according to claim 1, wherein a GPS receiver which is connected to a data processing unit is arranged inside the housing (14).

12. Device according to claim 1, wherein the grab handle (5) has respectively one changeover switch (25) for the rotational direction of the tool that is located in forward direction and/or backward direction with regard to the working direction.

13. Device according to claim 1, wherein the grab handle (5) is formed so as to be height-adjustable and open to one side as well as removable and/or rotatable.

14. Device according to claim 1, wherein it is connected to a rail car via a height-adjustable side arm and is attached at the rail car.

15. Device according to claim 14, wherein the rail car has a container for receiving an (additional) battery or an aggregate.

16. Device according to claim 15, wherein the aggregate is a power generating set equipped with a combustion engine, with the power generating set being connected to the screwing device.

17. Device according to claim 1, wherein it has an illumination (13) that is preferably arranged in the lower area of the housing (14) and positioned at an angle towards a working tool.

18. Device according to claim 1, wherein a double-sided recovery (26) is arranged in the lower area of the two-shell housing (14) as a meshing area for fixating and holding the device.

19. Device according to claim 18, wherein a grab handle is integrated inside the recovery area (26).

20. Device according to claim 1, wherein a fan is arranged inside the two-shell housing (14).

21. Device according to claim 1, wherein the entire screwing device is formed in such a manner that a complete counterbalance adjustment occurs for a one-hand operation at vertical screw connections.

22. Device according to claim 1, wherein equipment by which a contactless read-out of stored data is facilitated is located inside the housing (14).

Description

EXEMPLARY EMBODIMENT

(1) In the following, the invention will be explained in more detail by using the following exemplary embodiment.

(2) In the Figures:

(3) FIG. 1 shows the central rib in cross section

(4) FIG. 2 shows the central rib with installation parts in cross section

(5) FIG. 3 shows the device without counter torque wrench in the lateral view

(6) FIG. 4 shows the device without counter torque wrench in the frontal view

(7) FIG. 5 shows the device without counter torque wrench in 3D view

(8) FIG. 6 shows the device with counter torque wrench in the cross section

(9) FIG. 7 shows the counter torque wrench in the cross section and longitudinal section as well as in top view

(10) The central rib 1 comprises U-shaped slots 2 and 3 for the battery 4 and the grab handle 5 as well as compartment 6 opened to the side for the control device 7, a horizontally upwards oriented seating 8 for the display 9 and a U-shaped insert 10 opened to the bottom for the machine-drive 11 as well as an insert 12, also oriented downwards, for the illumination device 13 and two slots 28; 29 for cables.

(11) Around the central rib 1 and the mentioned add-on or installed modules, the two-shell housing 14 is formed, below which the U-shaped counter torque wrench 17 with its two fork-shaped recesses 18;19 is arranged, which is attached at the sheath 16. Inside the sheath 16, the rotating parts 15 are arranged, which are guided in a rotatable manner via a special bearing 20. At the lower end of the rotatable parts 15, a gearing 21 and a socket seating 22 are arranged.

(12) At the grab handle 5, at least one changeover switch 25 is arranged in both working directions.

(13) The display 9 is designed so as to be angled and has a rotatable knob 23 as well as a sun shield 24.

(14) In the lower area of the two-shell housing 14, between the rotatable parts 15 and the illumination device 13, the recess area 26 is arranged as a mesh area for fixing and holding the screwing device.

(15) Optionally, the central rib 1 has a seating 27 for a fan.

PARTS LIST

(16) 1—central rib 2—insert 3—insert 4—battery 5—grab handle 6—side compartment 7—control device 8—seating 9—display 10—insert 11—machine-drive 12—insert 13—illumination device 14—two-shell housing 15—rotatable parts 16—sheath 17—counter torque wrench 18—fork-shaped recess 19—fork-shaped recess 20—ball bearing 21—gear wheel 22—socket seating 23—rotatable knob 24—sun shield 25—changeover switch 26—recess 27—seating 28—insert 29—insert 30—set button