Device for turning around vehicle in tunnel

Abstract

The utility model relates to a device for turning around a vehicle in a tunnel, which comprises a trestle main body, a central rotating frame is fixed in the middle of the trestle main body, a rotating shaft is fixed in the middle of the central rotating frame, a rotating table is rotatably connected onto the rotating shaft and embedded in a table top of the trestle main body, and a driving frame is fixed in the center of the bottom of the rotating table. The driving frame is rotationally connected to the rotating shaft in a sleeving mode, a driving mechanism for driving the rotating table to rotate is connected to the interior of the trestle body and comprises two oil cylinders, the tail ends of cylinder bodies of the two oil cylinders are hinged to the trestle body respectively, and traction ropes are fixed to the front ends of piston rods of the two oil cylinders respectively; the free ends of the two traction ropes are fixedly connected with the outer wall of the driving frame, and the driving frame is driven to rotate through cooperation of the two oil cylinders so as to drive the rotary table to rotate by 180 degrees. The two oil cylinders are matched with the traction rope to drive the rotary table to rotate, the overall structure is simple, the space layout is compact, and the overall equipment cost is relatively low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction equipment technical field, concretely relates to a tunnel vehicle U-turn device. BACKGROUND

[0002] In the tunnel construction of trackless transportation, due to the inverted arch trestle not having the vehicle U-turn function, due to the narrow space of the tunnel, the construction vehicle can only U-turn in the expansion section or the working face, and the long distance leads to the need of the construction vehicle to increase the driving distance, which increases the transportation cost and reduces the transportation efficiency, and the additional exhaust emission of the vehicle pollutes the tunnel environment and is not conducive to the tunnel construction. In order to overcome the defects of the prior art, the prior art has appeared the construction trestle with the rotating function, but the construction trestle is driven to rotate by the gear cooperating with the speed reducer, the overall structure arrangement is relatively difficult, and the equipment cost is higher. SUMMARY

[0003] The utility model aims at overcoming the insufficient of prior art, provides a tunnel vehicle U-turn device to reduce the equipment cost.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A tunnel vehicle U-turn device, including trestle main part, the middle part of trestle main part is fixed with center rotating frame, the middle part of center rotating frame is fixed with rotating shaft, rotating shaft is rotatably connected with rotating table, and rotating table is embedded in the table surface of trestle main part, the bottom center of rotating table is fixed with drive frame, drive frame is rotatably sleeved on rotating shaft, the inside of trestle main part is connected with drive mechanism that drives rotating table to rotate, and the drive mechanism includes two oil cylinders, the cylinder body tail end of two oil cylinders is hinged on trestle main part respectively, the front end of piston rod of two oil cylinders is fixed with traction rope respectively, and the free end of two traction ropes is fixedly connected with the outer wall of drive frame, and the drive frame is driven to rotate through the cooperation of two oil cylinders to drive rotating table to rotate 180 DEG.

[0006] Further, two oil cylinders are located on the same side of trestle main part, the outer wall of drive frame is fixed with two traction rope fixing heads, and the free end of two traction ropes is connected and fixed with the corresponding traction rope fixing head after at least surrounding the drive frame half a circle.

[0007] Further, a circle of supporting roller frames is arranged on the center rotating frame, and a plurality of rollers for supporting the rotating table are rotatably connected on the supporting roller frames in the circumferential direction.

[0008] Further, the two ends of the trestle main part are respectively connected with approach bridges.

[0009] Further, the traction rope is a steel wire rope.

[0010] Further, the rotation angle of the rotary table is 180°

[0011] The utility model discloses above technical scheme, through two oil cylinders cooperation traction rope drive rotary table rotation, whole structure is simple, and the space layout is compact, and the overall equipment cost is relatively lower. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model makes further detailed explanation in combination with the drawings and specific embodiment:

[0013] Figure 1 It is the structure diagram of the utility model;

[0014] Figure 2 It is the bottom view (omitting the middle bottom plate of the central rotating frame) of the utility model;

[0015] Figure 3 It is the structure diagram of the central rotating frame;

[0016] Figure 4 It is the schematic diagram of two traction rope fixing heads on the driving frame. SPECIFIC EMBODIMENT

[0017] As Figures 1-4 The utility model discloses a tunnel vehicle U-turn device, including trestle main body 1, the middle part of trestle main body 1 is fixed with central rotating frame 2, the middle part of central rotating frame 2 is fixed with rotary shaft 21, rotary shaft 21 is rotatably connected with rotary table 3, and rotary table 3 is embedded in the table surface of trestle main body 1, the bottom center of rotary table 3 is fixed with driving frame 31, and driving frame 31 is rotatably connected on rotary shaft 21. The inside of trestle main body 1 is connected with the drive mechanism of driving rotary table 3 rotation, and the drive mechanism includes two oil cylinders 4, the cylinder body end of two oil cylinders 4 is respectively hinged on trestle main body 1, the piston rod front end of two oil cylinders 4 is respectively fixed with traction rope 5, and traction rope 5 is steel wire rope. The free end of two traction ropes 5 is fixedly connected with the outer wall of driving frame 31, and driving frame 31 is driven to rotate by the cooperation of two oil cylinders 4 to drive rotary table 3 to rotate 180 °.

[0018] As an embodiment, two oil cylinders 4 are located on the same side of trestle main body 1, the outer wall of driving frame 31 is fixed with two traction rope fixing heads 6, and the free end of two traction ropes 5 is connected and fixed with corresponding traction rope fixing head 6 after at least winding around driving frame 31 half a circle, and the winding direction of two traction ropes is opposite. As Figure 3In the driving process, one of the oil cylinders 4 extends, and the other oil cylinder 4 retracts, thereby driving the rotary table 3 to rotate 180°. When the two oil cylinders 4 stop working (the hydraulic oil flow stops), the driving frame 31 and the rotary table 3 can be stopped.

[0019] The central rotating frame 2 is provided with a circle of roller carriers 22, and a plurality of rollers 23 for supporting the rotary table 3 are movably connected to the roller carriers 22 in the circumferential direction. The rollers 23 play a role of rotatingly supporting the rotary table 3, and ensure the stability of the rotary table 3 in the rotating process.

[0020] The two ends of the trestle main body 1 are respectively connected with approach bridges 7, and the approach bridges 7 facilitate the construction vehicles to go up and down the trestle.

[0021] The utility model adopts two oil cylinders 4 to drive the rotary table 3 to rotate through the traction ropes 5, and the overall structure is simple, the space layout is compact, and the overall equipment cost is relatively lower.

[0022] The above describes the specific embodiment of the utility model, but those skilled in the art should understand that this is only an example, and those skilled in the art can make various changes or modifications to the embodiment without departing from the principles and essence of the utility model, for example: according to the requirement, the two oil cylinders 4 are arranged on the two sides of the trestle main body 1 respectively, in the driving process, one of the oil cylinders 4 extends, and the other oil cylinder 4 retracts, thereby driving the rotary table 3 to rotate, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A tunnel vehicle turning device, comprising a stack bridge body, a central rotating frame is fixed in the middle of the stack bridge body, a slewing shaft is fixed in the middle of the central rotating frame, a slewing table is rotatably connected on the slewing shaft, and the slewing table is embedded in the table surface of the stack bridge body, characterized in that: The bottom center of the rotating platform is fixed with a driving frame, the driving frame is rotationally sleeved on the rotating shaft, the inside of the pier body is connected with a driving rotating mechanism for driving the rotating platform to rotate, the driving rotating mechanism comprises two oil cylinders, the cylinder bodies of the two oil cylinders are respectively hinged on the pier body, the front ends of the piston rods of the two oil cylinders are respectively fixed with traction ropes, the free ends of the two traction ropes are respectively fixedly connected with the outer wall of the driving frame, and the driving frame is driven to rotate through the cooperation of the two oil cylinders so as to drive the rotating platform to rotate.

2. A tunnel vehicle U-turn device according to claim 1, characterised in that: The two oil cylinders are located on the same side of the pier body, the outer wall of the driving frame is fixed with two traction rope fixing heads, and the free ends of the two traction ropes are connected and fixed with the corresponding traction rope fixing heads after at least winding around the driving frame for half a circle.

3. A U-turn device for vehicles in a tunnel according to claim 1, characterized in that: A circle of supporting roller frames is arranged on the center rotating frame, and a plurality of rollers for supporting the rotating platform are rotationally connected on the supporting roller frames in the circumferential direction.

4. A U-turn device for vehicles in a tunnel according to claim 1, characterized in that: Two approach bridges are respectively connected to the two ends of the pier body.

5. A U-turn device for vehicles in a tunnel according to claim 1, characterized in that: The traction rope is a steel wire rope.

6. A U-turn device for vehicles in a tunnel according to claim 1, characterized in that: The rotating angle of the rotating platform is 180°.

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