A tunnel construction machine vehicle in-hole turning trestle

Abstract

The present application relates to the technical field of tunnel construction, and discloses a tunnel construction mechanical vehicle in-hole turning-around trestle, which comprises a fixed base for supporting equipment, the inside of the fixed base is provided with a turning-around assembly for the in-tunnel turning-around trestle, the top of the turning-around assembly is fixedly installed with a trestle body, the top of the trestle body is symmetrically provided with a plurality of anti-skid strips, the outer end of the fixed base is provided with a stabilizing assembly for reinforcing and stabilizing the turning-around, and the inside of the fixed base is provided with an oil injection assembly for uniformly injecting oil on the surface of the turning-around assembly, the oil injection assembly can inject oil on the surface of the driving turning-around structure, effectively reduces the friction loss of the transmission components such as gears in the long-term operation process, prolongs the service life, meanwhile, the oil injection process does not need to disassemble the trestle body or the driving structure, is convenient and efficient to operate, can quickly complete the maintenance in the gap of the tunnel construction, and guarantees the continuity of the mechanical vehicle turning-around operation.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, specifically to a tunnel construction machinery vehicle turning bridge inside the tunnel. Background Technology

[0002] Tunnel engineering, as a core infrastructure in transportation, water conservancy, and municipal engineering, is characterized by its enclosed space, narrow cross-section, complex working environment, and dense construction procedures. In tunnel construction, various types of machinery, such as concrete mixer trucks, muck trucks, loaders, and rock drilling rigs, are crucial equipment for ensuring construction progress. They frequently travel between the tunnel entrance and the tunnel face to complete key tasks such as material transportation, waste removal, and construction operations. The efficiency and safety of these vehicles' turning around inside the tunnel directly determine the overall progress, operational efficiency, and construction safety of the tunnel construction, making it one of the key factors restricting the efficient advancement of tunnel construction. Turning around tunnel construction machinery mainly employs traditional methods such as reversing out, temporary turning platforms, and manual steering. In some scenarios, simple trestle bridges are used to assist with turning around.

[0003] Turning trestles require gear transmission to rotate during use, necessitating regular lubrication of the gears. Conventional lubrication methods require disassembling parts, resulting in a cumbersome and time-consuming process. This increases labor intensity and may cause unnecessary damage to the equipment during disassembly. Furthermore, frequent disassembly affects the trestle's normal operation, reducing its turnover efficiency and failing to meet the rapid turning needs of machinery in tunnel construction. Therefore, this art provides an in-tunnel turning trestle for tunnel construction machinery to address the problems mentioned in the background. Summary of the Invention

[0004] The purpose of this invention is to provide a turning bridge for tunnel construction machinery vehicles inside the tunnel, which solves the problem that the oil injection process in the prior art is cumbersome and time-consuming, thus increasing the labor intensity of the workers.

[0005] This invention provides the following technical solution: a tunnel construction machinery vehicle turning bridge inside the tunnel, comprising a fixed base for supporting the equipment, a turning component for turning the bridge inside the tunnel being provided inside the fixed base, a bridge body being fixedly installed on the top of the turning component, a plurality of anti-slip strips being symmetrically arranged on the top of the bridge body, a stabilizing component for reinforcing and stabilizing the turning being provided at the outer end of the fixed base, an oiling component for uniformly injecting oil onto the surface of the turning component being provided inside the fixed base, and a positioning component for positioning the machinery vehicle being symmetrically arranged on the top of the bridge body.

[0006] As a preferred embodiment of the above technical solution, the oil injection assembly includes a rotating shaft, which is rotatably connected to the inner wall of the fixed base. An oil injection tooth is fixedly installed at the top end of the rotating shaft, and a torsion spring is sleeved on the outer end of the rotating shaft. Multiple oil injection holes are opened on the inner wall of the oil injection tooth, and an adjusting hose is fixedly installed at the oil inlet end of the oil injection tooth. A transmission pipe is fixedly installed at one end of the adjusting hose.

[0007] As a preferred embodiment of the above technical solution, the transmission pipe extends to the outer end of the fixed base, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the fixed base and the oil injection teeth.

[0008] As a preferred embodiment of the above technical solution, the turning assembly includes a drive motor, which is fixedly installed inside the fixed base. A small gear is fixedly installed at the output end of the drive motor, and a rotating groove is provided on the inner wall of the top of the fixed base.

[0009] As a preferred embodiment of the above technical solution, a large gear is meshed with one side of the small gear, a movable seat is fixedly installed on the top of the large gear, a plurality of first balls are rotatably connected to the outer end of the movable seat, the large gear is meshed with an oil injection gear, both the small gear and the large gear are rotatably connected to the inner wall of the fixed base, and the movable seat extends to the top of the fixed base and is fixedly connected to the bottom of the trestle body.

[0010] As a preferred embodiment of the above technical solution, the stabilizing component includes a reinforcing base, which is fixedly installed on the outer end of the fixed base. A reinforcing rotating base is rotatably connected inside the reinforcing base. A plurality of second ball bearings are fixedly installed on the outer end of the reinforcing rotating base. A plurality of connecting rods are fixedly installed in a ring shape on the top of the reinforcing rotating base. The top of the connecting rods is fixedly connected to the bottom of the trestle body. The second ball bearings are rotatably connected to the inner wall of the reinforcing base.

[0011] As a preferred embodiment of the above technical solution, the positioning component includes guide rods, with two guide rods symmetrically fixedly installed on the top of the trestle body. Each guide rod has multiple scale grooves on one side, and an adjustment block is slidably connected to the outer end of the guide rod.

[0012] As a preferred embodiment of the above technical solution, a limiting bolt is threadedly connected to one side of each adjustment block, laser sensors are fixedly installed on the inner side of two of the adjustment blocks, and laser emitters are fixedly installed on the inner side of the other two adjustment blocks. The limiting bolt abuts against the surface of the guide rod, and the laser sensors and laser emitters are a set.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention, by setting up an oil injection component, can inject oil into the surface of the drive turning structure, effectively reducing frictional wear of transmission components such as gears during long-term operation and extending their service life. At the same time, the oil injection process does not require disassembling the trestle body or drive structure, making the operation convenient and efficient. Maintenance can be completed quickly during tunnel construction breaks, ensuring the continuity of mechanical vehicle turning operations. This solution, by setting up stabilizing components and through the coordinated action of the reinforcing seat, the reinforcing rotating seat, and the connecting rod, transforms the single-point support between the trestle body and the fixed base into a multi-point ring support. With the rolling assistance of the second ball bearing, it not only ensures the stability of the trestle body during rotation and turning, but also reduces the resistance during the rotation process, making the turning operation smoother and more stable. It effectively avoids the vehicle driving safety hazards caused by the trestle swaying, and improves the structural reliability and operational safety of the entire turning system. This solution, by setting up positioning components, can position mechanical vehicles on the surface of the turning bridge, preventing them from exceeding the surface and affecting the turning process. It can quickly confine the vehicle body within the preset turning range, eliminating the need for repeated manual adjustments to the vehicle's position and shortening the preparation time for turning. At the same time, during the process of the rotating bridge body driving the vehicle to complete the turning, it can prevent the vehicle from shifting or slipping, further improving the safety factor of the turning operation and ensuring that the entire turning process is stable and orderly. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a tunnel construction machinery vehicle turning around inside a tunnel. Figure 2 A cross-sectional view of a tunnel construction machinery vehicle turning bridge inside a tunnel. Figure 3 A schematic diagram of the stabilizing component structure of a turning bridge for tunnel construction machinery vehicles inside the tunnel; Figure 4 A schematic diagram of the turning component structure of a turning trestle bridge inside a tunnel construction machinery vehicle; Figure 5 A schematic diagram of the oil injection component structure of a tunnel construction machinery vehicle turning bridge inside the tunnel; Figure 6 This is a schematic diagram of the positioning component structure of a turning bridge for tunnel construction machinery vehicles inside the tunnel.

[0015] In the diagram: 1. Fixed base; 21. Drive motor; 22. Small gear; 23. Large gear; 24. Movable seat; 25. First ball bearing; 26. Rotating groove; 3. Bridge body; 4. Anti-slip strip; 51. Reinforcing seat; 52. Reinforcing rotating seat; 53. Second ball bearing; 54. Connecting rod; 61. Rotating shaft; 62. Oil injection gear; 63. Torsion spring; 64. Oil injection hole; 65. Adjusting hose; 66. Transmission pipe; 71. Guide rod; 72. Scale groove; 73. Adjusting block; 74. Limit bolt; 75. Laser sensor; 76. Laser emitter. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0017] Please see Figure 1 - Figure 6 As shown, the present invention provides a technical solution: a tunnel construction machinery vehicle turning bridge inside the tunnel, including a fixed base 1 for supporting the equipment, a turning component for turning the bridge inside the tunnel is provided inside the fixed base 1, a bridge body 3 is fixedly installed on the top of the turning component, a plurality of anti-slip strips 4 are symmetrically arranged on the top of the bridge body 3, a stabilizing component for reinforcing and stabilizing the turning is provided at the outer end of the fixed base 1, an oiling component for uniformly injecting oil onto the surface of the turning component is provided inside the fixed base 1, and a positioning component for positioning the machinery vehicle is symmetrically arranged on the top of the bridge body 3.

[0018] As one implementation method in this embodiment, please refer to Figure 1 , Figure 3 and Figure 5 As shown, the oil injection assembly includes a rotating shaft 61, which is rotatably connected to the inner wall of the fixed base 1. An oil injection tooth 62 is fixedly installed at the top of the rotating shaft 61, and a torsion spring 63 is sleeved on the outer end of the rotating shaft 61. Multiple oil injection holes 64 are opened on the inner wall of the oil injection tooth 62. An adjusting hose 65 is fixedly installed at the oil inlet end of the oil injection tooth 62, and a transmission pipe 66 is fixedly installed at one end of the adjusting hose 65.

[0019] Furthermore, the transmission pipe 66 extends to the outer end of the fixed base 1, and the two ends of the torsion spring 63 are fixedly connected to the inner wall of the fixed base 1 and the oil injection tooth 62, respectively.

[0020] During the entire process of engagement and resetting of the lubrication gear 62 and the large gear 23, external lubricating oil is delivered to the regulating hose 65 through the transmission pipe 66 extending to the outer end of the fixed base 1, and then introduced into the interior of the lubrication gear 62 by the regulating hose 65. Since the inner wall of the lubrication gear 62 has multiple lubrication holes 64, these lubrication holes 64 can evenly apply lubricating oil to the tooth surface and key parts such as the tooth root of the large gear 23 when the lubrication gear 62 rotates, thereby realizing automatic and uniform lubrication of the large gear 23, the core transmission component in the turning assembly, effectively reducing the friction and wear between the large gear 23 and the small gear 22, and ensuring the flexible operation and service life of the turning trestle during long-term use.

[0021] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 As shown, the turning assembly includes a drive motor 21, which is fixedly installed inside the fixed base 1. A pinion 22 is fixedly installed at the output end of the drive motor 21, and a rotating groove 26 is provided on the inner wall of the top of the fixed base 1.

[0022] Furthermore, a large gear 23 is meshed with one side of the small gear 22, and a movable seat 24 is fixedly installed on the top of the large gear 23. Multiple first balls 25 are rotatably connected to the outer end of the movable seat 24.

[0023] Furthermore, the large gear 23 and the oil injection gear 62 are meshed and connected, the small gear 22 and the large gear 23 are rotatably connected to the inner wall of the fixed base 1, and the movable seat 24 extends to the top of the fixed base 1 and is fixedly connected to the bottom of the trestle body 3.

[0024] Driven by the drive motor 21, the pinion 22 rotates. Since the pinion 22 meshes with the large gear 23, it drives the large gear 23 to rotate synchronously within the inner wall of the fixed base 1. The rotation of the large gear 23 is directly transmitted to the movable seat 24 fixedly connected to it, causing the movable seat 24 to rotate as well. The multiple first ball bearings 25 rotatably connected to the outer end of the movable seat 24 roll within the rotating groove 26. They not only provide good guidance for the rotation of the movable seat 24 but also greatly reduce the frictional resistance between the movable seat 24 and the fixed base 1, ensuring that the movable seat 24 can smoothly drive the trestle body 3 to rotate 360 ​​degrees, thereby enabling the tunnel construction machinery vehicles to flexibly turn around inside the tunnel.

[0025] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 3As shown, the stabilizing component includes a reinforcing base 51, which is fixedly installed on the outer end of the fixed base 1. A reinforcing rotating base 52 is rotatably connected inside the reinforcing base 51. A plurality of second ball bearings 53 are fixedly installed on the outer end of the reinforcing rotating base 52. A plurality of connecting rods 54 are fixedly installed in a ring shape on the top of the reinforcing rotating base 52.

[0026] Furthermore, the top of the connecting rod 54 is fixedly connected to the bottom of the trestle body 3, and the second ball bearing 53 is rotatably connected to the inner wall of the reinforcing seat 51.

[0027] When the trestle body 3 rotates under the drive of the movable seat 24, the connecting rod 54, which is fixedly connected to its bottom, will synchronously drive the reinforcing rotating seat 52 to rotate inside the reinforcing seat 51. During this process, multiple second balls 53 at the outer end of the reinforcing rotating seat 52 roll in the inner wall of the reinforcing seat 51. This not only provides stable support and guidance for the rotation of the reinforcing rotating seat 52, but also effectively disperses the radial force generated when the trestle body 3 rotates, preventing the trestle body 3 from swaying or deviating during rotation. This further enhances the stability and safety of the entire trestle structure during rotation operation, ensuring that tunnel construction machinery and vehicles can smoothly and reliably complete the turning operation on the trestle.

[0028] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 As shown, the positioning component includes guide rods 71. Two guide rods 71 ​​are symmetrically fixedly installed on the top of the trestle body 3. Multiple scale grooves 72 are opened on one side of each guide rod 71. An adjustment block 73 is slidably connected to the outer end of the guide rod 71.

[0029] Furthermore, a limit bolt 74 is threadedly connected to one side of each adjustment block 73. Laser sensors 75 are fixedly installed on the inner side of two adjustment blocks 73, and laser emitters 76 are fixedly installed on the inner side of the other two adjustment blocks 73. The limit bolt 74 abuts against the surface of the guide rod 71. The laser sensors 75 and laser emitters 76 form a group.

[0030] Two sets of laser sensors 75 and laser emitters 76 are installed, corresponding to the front and rear positions of the tunnel construction machinery vehicle, respectively. In use, according to the actual length of the vehicle, the sliding adjustment block 73 moves along the guide rod 71. After adjusting the distance between the two laser emitters 76 according to the scale groove 72, the limiting bolt 74 is rotated to make the limiting bolt 74 fit tightly against the surface of the guide rod 71, thus fixing the position of the adjustment block 73. When the vehicle enters the trestle body 3 to turn around, if the vehicle position deviates from the preset travel route, it will block the laser signal emitted by the laser emitter 76 to the corresponding laser sensor 75, thereby triggering the reminder device to prompt the driver to adjust the position, avoiding the vehicle deviating from the trestle and causing danger, and further improving the safety of the device during use.

[0031] Working principle: In the initial state, the entire trestle body 3 is arranged in the preset turning area inside the tunnel. The fixed base 1 is pre-fixed to the tunnel bottom to ensure the basic stability of the overall device. When it is necessary to turn the construction machinery vehicle, the distance between the laser emitter 76 and the laser sensor 75 is adjusted and fixed according to the actual size of the vehicle to be turned. Then, the vehicle is guided to slowly drive into the top surface of the trestle body 3. With the help of the anti-slip strip 4, the vehicle is prevented from slipping when going up and down the trestle, improving the safety of the driving process. After the vehicle is completely parked on the trestle body 3, the drive motor 21 of the turning component is started. The drive motor 21 drives the small gear 22 at the output end to rotate. The small gear 22 meshes with and drives the large gear 23. Rotating inside the fixed base 1, the movable seat 24 on the top of the large gear 23 rotates synchronously, thereby driving the entire trestle body 3 and the construction vehicles parked on it to rotate together. The first ball 25 at the outer end of the movable seat 24 rolls in the rotating groove 26, reducing rotational friction and ensuring rotational stability. During the rotation of the large gear 23, the large gear 23 will intermittently drive the oil injection tooth 62 that meshes with it to rotate. When the oil injection tooth 62 rotates, it squeezes the torsion spring 63 to store energy. When the teeth of the large gear 23 leave the oil injection tooth 62, the torsion spring 63 will drive the oil injection tooth 62 to reset. During this process, the lubricating oil that has been pre-connected to the transmission pipe 66 will be evenly applied to the tooth surface of the large gear 23 through the oil injection hole 64 on the inner wall of the oil injection tooth 62, automatically completing the lubrication maintenance. Simultaneously, during the rotation of the trestle body 3, its bottom will synchronously drive the reinforcing rotating seat 52 to rotate inside the reinforcing seat 51. The second ball bearing 53 at the outer end of the reinforcing rotating seat 52 will rotate in coordination to provide stable support for the outer end of the trestle body 3, distribute the force during the rotation process, and prevent the trestle body 3 from swaying or shifting. During the rotation, if the vehicle position deviates from the preset area, the laser signal at the corresponding position will be blocked, triggering the reminder device to prompt adjustment, ensuring that the vehicle is always within the safe parking range. After the trestle body 3 drives the vehicle to complete a 180-degree rotation, the drive motor 21 will be turned off, and the vehicle can drive out to complete the turning operation. When a vehicle enters the main body 3 of the trestle bridge to make a U-turn, if the vehicle's position deviates from the preset route, it will block the laser signal at the corresponding position, triggering a reminder device to prompt the driver to adjust the driving position.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A tunnel construction machinery vehicle turning bridge inside the tunnel, comprising a fixed base (1) for supporting the equipment, characterized in that: The fixed base (1) is equipped with a turning component for turning the trestle inside the tunnel. The top of the turning component is fixedly installed with the trestle body (3). Multiple anti-slip strips (4) are symmetrically arranged on the top of the trestle body (3). The outer end of the fixed base (1) is equipped with a stabilizing component for reinforcing and stabilizing the turning. The fixed base (1) is equipped with an oiling component for uniformly injecting oil onto the surface of the turning component. The top of the trestle body (3) is symmetrically equipped with a positioning component for positioning the mechanical vehicle.

2. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 1, characterized in that: The oil injection assembly includes a rotating shaft (61), which is rotatably connected to the inner wall of the fixed base (1). An oil injection tooth (62) is fixedly installed at the top of the rotating shaft (61). A torsion spring (63) is sleeved on the outer end of the rotating shaft (61). Multiple oil injection holes (64) are opened on the inner wall of the oil injection tooth (62). An adjusting hose (65) is fixedly installed at the oil inlet end of the oil injection tooth (62). A transmission pipe (66) is fixedly installed at one end of the adjusting hose (65).

3. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 2, characterized in that: The transmission tube (66) extends to the outer end of the fixed base (1), and the two ends of the torsion spring (63) are fixedly connected to the inner wall of the fixed base (1) and the oil injection tooth (62) respectively.

4. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 1, characterized in that: The turning assembly includes a drive motor (21), which is fixedly installed inside the fixed base (1). A pinion (22) is fixedly installed at the output end of the drive motor (21), and a rotating groove (26) is provided on the inner wall of the top of the fixed base (1).

5. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 4, characterized in that: The small gear (22) is meshed with a large gear (23) on one side. A movable seat (24) is fixedly installed on the top of the large gear (23). Multiple first balls (25) are rotatably connected to the outer end of the movable seat (24). The large gear (23) is meshed with an oil injection tooth (62). The small gear (22) and the large gear (23) are both rotatably connected to the inner wall of the fixed base (1). The movable seat (24) extends to the top of the fixed base (1) and is fixedly connected to the bottom of the trestle body (3).

6. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 1, characterized in that: The stabilizing component includes a reinforcing base (51), which is fixedly installed on the outer end of the fixed base (1). A reinforcing rotating base (52) is rotatably connected inside the reinforcing base (51). A plurality of second balls (53) are fixedly installed on the outer end of the reinforcing rotating base (52). A plurality of connecting rods (54) are fixedly installed in a ring shape on the top of the reinforcing rotating base (52). The top of the connecting rods (54) is fixedly connected to the bottom of the trestle body (3). The second balls (53) are rotatably connected to the inner wall of the reinforcing base (51).

7. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 1, characterized in that: The positioning component includes guide rods (71), and two guide rods (71) are symmetrically fixed on the top of the trestle body (3). Each guide rod (71) has multiple scale grooves (72) on one side, and an adjustment block (73) is slidably connected to the outer end of the guide rod (71).

8. The tunnel construction machinery vehicle turning bridge inside the tunnel according to claim 7, characterized in that: Each of the adjustment blocks (73) has a limit bolt (74) threaded on one side. Two of the adjustment blocks (73) have laser sensors (75) fixedly installed on their inner sides, and two other adjustment blocks (73) have laser emitters (76) fixedly installed on their inner sides. The limit bolt (74) abuts against the surface of the guide rod (71). The laser sensors (75) and laser emitters (76) are a set.

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