A tool trolley driving mechanism arranged on a tunnel trolley

Abstract

This utility model provides a tooling trolley drive mechanism mounted on a tunnel trolley, relating to the field of tunnel construction equipment technology. It primarily addresses the problems of tooling trolleys easily jamming and high costs in existing technologies. The tooling trolley drive mechanism includes a trolley body and a longitudinal track mounted on the trolley body. It also includes a motor, a reducer, a synchronous pulley, and a pair of fixed pulleys mounted inside the tooling trolley. The synchronous pulley is mounted on the output shaft of the reducer. A synchronous belt, parallel to the longitudinal track, is fixed between the front and rear ends of the trolley body. The synchronous belt meshes with the synchronous pulley, and the pair of fixed pulleys cover the synchronous belt around the pulley. This utility model uses a synchronous belt to drive the tooling trolley, resulting in lower manufacturing costs compared to rack and pinion drives. Compared to winch drives, this utility model avoids jamming and offers higher travel accuracy.

Description

Technical Field

[0001] This utility model is specifically a tooling trolley drive mechanism installed on a tunnel trolley, and relates to the field of tunnel construction equipment technology. Background Technology

[0002] There are many types of tunnel trolleys, which can be classified according to their functions as rock drilling trolleys, arch erecting trolleys, wet spraying trolleys, cloth hanging trolleys, lining trolleys, and curing trolleys. Most tunnel trolleys are equipped with tooling trolleys, which serve as carriers for functional components and can move longitudinally along the tunnel trolley.

[0003] Currently, most tooling trolleys are driven by winches, lead screws and nuts, or rack and pinion mechanisms. The disadvantage of winch-driven mechanisms is that the trolley's forward and backward movement is asynchronous, easily leading to jamming. Since the tooling trolley's travel distance is typically 12 meters, the main drawback of using lead screws and nuts or rack and pinion drives is excessive cost. Furthermore, some functional components require electricity and water supply, and the cables and water pipes are easily snagged and damaged during trolley movement. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model discloses a tooling trolley drive mechanism mounted on a tunnel trolley, adopting the following technical solution:

[0005] A tooling trolley drive mechanism mounted on a tunnel trolley includes a trolley body and a longitudinal track mounted on the trolley body. It also includes a motor, a reducer, a synchronous pulley, and a pair of fixed pulleys mounted inside the tooling trolley. The synchronous pulley is mounted on the output shaft of the reducer. A synchronous belt parallel to the longitudinal track is fixed between the front and rear ends of the trolley body. The synchronous belt is engaged with the synchronous pulley. The pair of fixed pulleys are used to cover the synchronous belt with the synchronous pulley.

[0006] Further improve the technical solution: The synchronous belt pulley and a pair of fixed pulleys are arranged in a triangle inside the tooling trolley, with the synchronous belt pulley located above the pair of fixed pulleys.

[0007] Further improve the technical solution: A screw tensioning mechanism is installed at the connection between the timing belt and the vehicle body.

[0008] Further improve the technical solution: install a cable chain between the vehicle body and the tooling trolley for placing cables and water pipes.

[0009] Further improve the technical solution: install limit switches at both ends of the longitudinal track.

[0010] The beneficial effects of implementing the above technical solution are as follows:

[0011] This invention utilizes a synchronous belt to drive a tooling trolley, which has lower manufacturing costs compared to gear and rack drive methods. Compared to winch drive methods, this invention avoids jamming and offers higher walking accuracy. Attached Figure Description

[0012] Appendix Figure 1 The image shown is a front view of the tunnel maintenance trolley.

[0013] Appendix Figure 2 The image shown is a side view of the tunnel maintenance trolley.

[0014] Appendix Figure 3 The diagram shown is a schematic representation of the overall structure of the tooling trolley drive mechanism.

[0015] Appendix Figure 4 The diagram shown is a partial structural schematic of the tooling trolley drive mechanism.

[0016] In the attached diagram: 1. Car body; 2. Longitudinal track; 3. Tooling trolley; 4. Reducer; 5. Synchronous pulley; 6. Fixed pulley; 7. Synchronous belt; 8. Screw tensioning mechanism; 9. Cable chain. Detailed Implementation

[0017] The preferred embodiments of this utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. It should be noted that in the description of this utility model, terms such as "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation and positional relationship, and therefore should not be construed as a limitation of this utility model. It should also be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] A tooling trolley drive mechanism mounted on a tunnel trolley relates to the field of tunnel construction equipment technology and is mainly used to solve the problems of tooling trolleys easily getting stuck and high costs in existing technologies. The following uses a tunnel maintenance trolley as an example to specifically illustrate the composition and working principle of this tooling trolley drive mechanism.

[0019] See attached document Figure 1 and attached Figure 2 The tunnel maintenance trolley has a movable body 1, with a longitudinal rail 2 on the top of the body 1. The tooling trolley 3 can move back and forth along the longitudinal rail 2. According to the maintenance requirements, a spraying system is installed on the tooling trolley 3.

[0020] See attached document Figure 3 and attached Figure 4 To address the issues of jamming and high cost in existing tooling trolleys, a motor (not shown in the figure), a reducer 4, a synchronous pulley 5, and a pair of fixed pulleys 6 are incorporated within the tooling trolley 3. Specifically, the synchronous pulley 5 is mounted on the output shaft of the reducer 4, and the synchronous pulley 5 and the pair of fixed pulleys 6 are arranged in a triangle, with the synchronous pulley 5 positioned above the pair of fixed pulleys 6. A synchronous belt 7, parallel to the longitudinal track 2, is fixed between the front and rear ends of the trolley body 1. The teeth of the synchronous belt 7 mesh with the synchronous pulley 5, and the back of the synchronous belt 7 covers the pair of fixed pulleys 6. The function of the fixed pulleys 6 is to wrap the synchronous belt 7 around the synchronous pulley 5 at a certain angle to meet the transmission requirements of the synchronous belt 7.

[0021] The synchronous belt 7 is a toothed belt with a neoprene or polyurethane matrix and steel wires embedded within it. It features high load-bearing capacity and high transmission accuracy. The synchronous belt 7 acts like a flexible rack, and the synchronous pulley 5 acts like a gear. When the motor rotates, the synchronous belt 7 remains stationary, while the synchronous pulley 5 drives the tooling carriage 3. When the motor rotates forward, the tooling carriage 3 moves forward; when the motor rotates in reverse, the tooling carriage 3 moves backward.

[0022] Compared to a 12-meter-long rack, a 12-meter-long synchronous belt 7 has a very low cost. Compared to the drive methods of winches and wire ropes, the drive method of synchronous belt 7 can precisely control the movement position and distance of the tooling trolley 3.

[0023] In order to tension the timing belt 7, a screw tensioning mechanism 8 is provided at the connection between the timing belt 7 and the vehicle body 1. The screw tensioning mechanism 8 consists of a screw and a nut. Rotating the screw can adjust the tension of the timing belt 7.

[0024] To limit the movement range of the tooling trolley 3, limit switches are installed at both ends of the longitudinal track 2.

[0025] Since the sprinkler system requires electricity and water, the cables and water pipes are easily snagged and damaged when the tool trolley 3 moves. Therefore, a cable chain 9 is installed between the vehicle body 1 and the tool trolley 3. Cable chains are existing technology, and placing cables and water pipes inside the cable chain 9 can prevent them from being snagged and damaged.

[0026] It is worth noting that the content not described in detail in the above embodiments is prior art. It is also worth noting that any additions, subtractions, substitutions, and improvements made by those skilled in the art based on the structure and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tooling trolley drive mechanism mounted on a tunnel trolley, comprising a trolley body and a longitudinal track mounted on the trolley body, characterized in that: It also includes a motor, a reducer, a synchronous pulley, and a pair of fixed pulleys installed in the tooling trolley. The synchronous pulley is installed on the output shaft of the reducer. A synchronous belt is fixed between the front and rear ends of the trolley body and is parallel to the longitudinal track. The synchronous belt is engaged with the synchronous pulley, and the pair of fixed pulleys are used to cover the synchronous belt on the synchronous pulley.

2. The tooling trolley drive mechanism as described in claim 1, characterized in that: The synchronous belt pulley and a pair of fixed pulleys are arranged in a triangle inside the tooling trolley, with the synchronous belt pulley located above the pair of fixed pulleys.

3. The tooling trolley drive mechanism as described in claim 1, characterized in that: A screw tensioning mechanism is installed at the connection between the timing belt and the vehicle body.

4. The tooling trolley drive mechanism as described in claim 1, characterized in that: Cable carriers are installed between the vehicle body and the tooling trolley for placing cables and water pipes.

5. The tooling trolley drive mechanism as described in claim 1, characterized in that: Limit switches are installed at both ends of the longitudinal track.

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