A bidirectional driving transport vehicle driven by hydraulic pressure

Abstract

The utility model belongs to tunnel transportation equipment technical field, concretely relates to a bidirectional driving transport vehicle through hydraulic drive, including positive direction driving system, reverse driving system, hydraulic system, power system, front and rear axle system and frame system, the frame system is used for realizing the placement of each spare part in the tunnel, positive direction driving system, hydraulic system, power system all set up in the frame system front end, reverse driving system sets up in the frame system rear end, front and rear axle system sets up below the frame system, positive direction driving system and reverse driving system pass through the control output direction of drive motor in hydraulic system, thereby realize front and rear axle system positive direction travel or reverse travel, compared with prior art, need not set up multiple modules, whole structure is relatively simple and compact, and the space is small, simultaneously because adopt hydraulic control, can also realize crab -like, thereby facilitate its use in the inclined shaft.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel transportation equipment, specifically relating to a hydraulically driven bidirectional driving transport vehicle. Background Technology

[0002] For long tunnels, specialized transport vehicles are used to transport components such as arch frames and reinforcing bars from the inclined shaft. For example, Chinese Patent CN117698543A discloses a tunnel arch frame transport vehicle. While this vehicle can transport arch frames and other components to the construction face via the inclined shaft, it has the following drawbacks:

[0003] 1) Components such as arch frames need to be fixed on the positioning seat. In the existing technology, rope fixing is commonly used, but in inclined shafts with a slope greater than 15°, sliding and detachment are still likely to occur.

[0004] 2) Only one arch frame can be transported each time, resulting in low transportation efficiency.

[0005] 3) Due to the small cross-section of the inclined shaft, the transport vehicle is not easy to turn around, which will seriously affect the transport efficiency.

[0006] Regarding bidirectional driving, Chinese patent CN119611520A discloses a multi-purpose tunnel transport vehicle, which achieves bidirectional driving by setting up multiple modules and combining the multiple modules. However, to achieve bidirectional driving, two first base frame modules must be set opposite each other on the two sides of the transport vehicle, which makes the overall vehicle structure complex and occupies a lot of space, making it inconvenient for transporting components such as arch frames and steel bars in inclined shafts. Utility Model Content

[0007] This utility model proposes a hydraulically driven bidirectional driving transport vehicle that can meet the transportation needs of narrow tunnels while achieving bidirectional driving. The overall structure is simple and compact, occupies little space, and can be used in inclined shafts.

[0008] Therefore, the technical solution adopted by this utility model is as follows: a hydraulically driven bidirectional driving transport vehicle, including a forward driving system, a reverse driving system, a hydraulic system, a power system, a front and rear axle system, and a frame system. The frame system is used to place various components in the tunnel. The forward driving system, hydraulic system, and power system are all located at the front end of the frame system, the reverse driving system is located at the rear end of the frame system, and the front and rear axle systems are located below the frame system. The forward driving system and the reverse driving system control the output direction of the drive motor in the hydraulic system, thereby realizing the forward or reverse driving of the front and rear axle systems.

[0009] As a preferred embodiment of the above scheme, the front and rear axle system includes a front axle and a rear axle. The front axle is connected to the output end of the transfer case via a front drive shaft, and the rear axle is connected to the output end of the transfer case via a rear drive shaft. The input end of the transfer case is connected to a drive motor.

[0010] Further preferably, the frame system is provided with an arch clamping assembly that can achieve arch clamping; several stops are provided at intervals on both the left and right sides of the frame system, and the stops are used to block the parts placed on the frame system from the side.

[0011] Further preferably, the arch frame clamping assembly is provided with several units spaced apart front and rear. Each arch frame clamping assembly includes an arch frame clamping cylinder mounted on the vehicle frame system. The output end of the arch frame clamping cylinder is hinged to the clamping rod, and the root of the clamping rod is hinged to the vehicle frame system. When the arch frame clamping cylinder is working, it can drive the clamping rod to switch between falling down and standing up.

[0012] In a further preferred embodiment, mounting blocks are provided on the left and right sides of the frame system at the position of each stop lever, and the upper end of the mounting block is provided with a mounting groove for inserting the stop lever.

[0013] Further preferably, the rear end of the frame system is provided with a rear baffle for blocking the rear end of the arch frame, and the width of the rear baffle matches the width of the arch frame placement area.

[0014] In a further preferred embodiment, the frame system is also equipped with a rebar unloading assembly for unloading rebar. The rebar unloading assembly includes a rebar unloading cylinder mounted on the frame system. The output end of the rebar unloading cylinder is hinged to the unloading rod, and the root of the unloading rod is hinged to the frame system. When the rebar unloading cylinder is working, it can drive the unloading rod to switch between falling down and standing up.

[0015] The beneficial effects of this utility model are:

[0016] 1) It is equipped with a forward driving system and a reverse driving system. By controlling the output direction of the drive motor in the hydraulic system through the forward driving system and the reverse driving system, the front and rear axle systems can be driven in the forward or reverse direction. Compared with the existing technology, it does not require multiple modules. The whole structure is relatively simple and compact and occupies little space. At the same time, due to the use of hydraulic control, it can also achieve crab driving, which makes it easy to use in inclined shafts.

[0017] 2) Equipped with an arch frame clamping assembly, which works in conjunction with the stop bar to effectively fix the arch frame to the frame system. In this application, multiple sections of an arch frame can be clamped, thereby ensuring transportation efficiency. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the present utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the present utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the front and rear axle systems in this utility model.

[0021] Reference numerals: Chassis system-100, lever-110, mounting block-120, rear tailgate-130, rebar unloading assembly-200, unloading bar-210, rebar unloading cylinder-220, arch frame clamping assembly-300, clamping bar-310, arch frame-320, front and rear axle system-400, front axle-410, rear axle-420, front drive shaft-430, rear drive shaft-450, transfer case-440, rear drive shaft-450, power system-500, hydraulic system-600, drive motor-610, forward driving system-700, reverse driving system-800. Detailed Implementation

[0022] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0023] like Figures 1-3 As shown, a hydraulically driven bidirectional transport vehicle mainly consists of a forward driving system 700, a reverse driving system 800, a hydraulic system 600, a power system 500, front and rear axle systems 400, and a frame system 100. The frame system 100 is used to house various components within the tunnel. The forward driving system 700, hydraulic system 600, and power system 500 are all located above the front end of the frame system 100. The reverse driving system 800 is located below the rear end of the frame system 100. The front and rear axle systems 400 are located below the frame system 100. The forward driving system 700 and the reverse driving system 800 control the output direction of the drive motor 610 in the hydraulic system 600, thereby enabling the front and rear axle systems 400 to travel in either direction.

[0024] The forward driving system 700 and the reverse driving system 800 control the output direction of the drive motor 610 in the hydraulic system 600 to achieve forward or reverse driving of the front and rear axle systems 400. Specifically, a reversing valve is installed in the hydraulic system to reverse the hydraulic flow to the drive motor, thereby achieving reverse rotation of the drive motor and thus reverse driving of the vehicle. The switching of the hydraulic oil flow direction in the drive motor via a hydraulic valve is existing technology. This can be achieved by connecting a first pipe and a second pipe to two oil ports of the hydraulic motor, with reversing valves installed on the first and second pipes. When rotating forward, oil enters through the first pipe and exits through the second pipe; when rotating in reverse, oil exits through the first pipe and enters through the second pipe.

[0025] The front and rear axle system 400 includes a front axle 410 and a rear axle 420, and both the front axle 410 and the rear axle 420 are equipped with tires for moving the entire transport vehicle. The front axle 410 is connected to the output end of the transfer case 440 through the front drive shaft 430, and the rear axle 420 is connected to the output end of the transfer case 440 through the rear drive shaft 450. The input end of the transfer case 440 is connected to the drive motor 610.

[0026] At low speeds, the transfer case drives the front and rear drive shafts synchronously, driving the front and rear axles respectively, which in turn rotates the tires, putting the entire transport vehicle in four-wheel drive mode. This provides significant driving force when climbing hills or traversing muddy roads, ensuring stability. At high speeds, the front drive can disengage, and the transfer case only drives the rear drive shaft, driving the rear wheels via the rear axle. This is rear-wheel drive mode, effectively reducing fuel consumption and improving fuel economy.

[0027] An arch clamping assembly 300 is installed on the frame system to clamp the arch frame 320. Several stop bars 110 are spaced apart on both sides of the frame system 100, and these stop bars 110 are used to block components placed on the frame system 100 from the side. Through the combined action of the stop bars and the arch clamping assembly, the arch frame placed on the frame system is fixed. To ensure the clamping effect of the arch frame, the length of the stop bars is set according to the height of the arch frame.

[0028] Specifically, several arch frame clamping assemblies 300 are spaced apart at the front and rear. Each arch frame clamping assembly 300 includes an arch frame clamping cylinder mounted on the frame system 100. The output end of the arch frame clamping cylinder is hinged to a clamping rod 310, and the root of the clamping rod 310 is hinged to the frame system 100. When the arch frame clamping cylinder operates, it drives the clamping rod from a horizontal state to a vertical state, and cooperates with the stop rod to clamp the arch frame. When placing the arch frame, since the length of the clamping rod is fixed, the curved surfaces of the arch frame need to face each other, such as... Figure 1 and 2 As shown.

[0029] To facilitate the installation of the stop levers, mounting blocks 120 are provided on the left and right sides of the frame system 100 at the position corresponding to each stop lever 110, and the upper end of the mounting block 120 is provided with a mounting groove for inserting the stop lever 110 for installation, thereby facilitating the removal of the stop levers.

[0030] To prevent the arch frame located on the frame system from slipping off from the rear end when going uphill, a rear baffle 130 is provided at the rear end of the frame system 100 to block the rear end of the arch frame, and the width of the rear baffle 130 matches the width of the arch frame placement area.

[0031] Preferably, when the clamping rod is not clamping the arch frame, the clamping rod extends to the left and right. At this time, the right end of the clamping rod is hinged to the output end of the arch frame clamping cylinder, so that the clamping rod can clamp the arch frame located on the left half of the frame system from right to left. Since there is still space on the frame system located on the right side of the clamping rod after the arch frame is clamped, steel bars can be placed at this position, so that the transport vehicle can be used for the joint transport of the arch frame and steel bars. That is, the left half of the frame system 100 is used to place the arch frame 320, and the right half is used to place the steel bars. For this purpose, a steel bar self-unloading assembly 200 for unloading steel bars can also be provided on the frame system 100.

[0032] The rebar unloading assembly 200 includes a rebar unloading cylinder mounted on the frame system 100. The output end of the rebar unloading cylinder is hinged to the unloading rod 210, and the root of the unloading rod 210 is hinged to the frame system 100. When the rebar unloading cylinder is working, it can drive the unloading rod 210 to switch between falling down and standing up. Preferably, when the unloading rod is not unloading rebar, the unloading rod extends to the left and right, with the right end of the unloading rod hinged to the right end of the frame system, and the left end of the unloading rod hinged to the output end of the rebar unloading cylinder. This allows the unloading rod to unload all the rebar located on the right side of the frame system from the right side under the action of the rebar unloading cylinder during rebar unloading.

[0033] Preferably, the power system uses a diesel engine, and the hydraulic system contains multiple hydraulic cylinders, including at least an oil pump to provide hydraulic power to the drive motor and a gear pump to provide power for steering, unloading rebar, and clamping the arch frame. The main body of the chassis system is welded from manganese steel rectangular tubing, and the platform consists of anti-slip patterned plates. The reverse driving system is a simple cab, only used for driving the vehicle out of the tunnel after unloading materials; after exiting the tunnel, it should switch to forward driving.

Claims

1. A hydraulically driven bidirectional driving transport vehicle, characterized in that: The system includes a forward driving system (700), a reverse driving system (800), a hydraulic system (600), a power system (500), a front and rear axle system (400), and a frame system (100). The frame system (100) is used to place various components inside the tunnel. The forward driving system (700), hydraulic system (600), and power system (500) are all located at the front end of the frame system (100). The reverse driving system (800) is located at the rear end of the frame system (100). The front and rear axle systems (400) are located below the frame system (100). The forward driving system (700) and the reverse driving system (800) control the output direction of the drive motor (610) in the hydraulic system (600) to enable the front and rear axle systems (400) to drive forward or in reverse.

2. The hydraulically driven bidirectional transport vehicle according to claim 1, characterized in that: The front and rear axle system (400) includes a front axle (410) and a rear axle (420). The front axle (410) is connected to the output end of the transfer case (440) via a front drive shaft (430). The rear axle (420) is connected to the output end of the transfer case (440) via a rear drive shaft (450). The input end of the transfer case (440) is connected to a drive motor (610).

3. The hydraulically driven bidirectional transport vehicle according to claim 1, characterized in that: The frame system is provided with an arch clamping assembly (300) that can clamp the arch (320); the left and right sides of the frame system (100) are provided with a number of stops (110) spaced back and forth, and the stops (110) are used to block the parts placed on the frame system (100) from the side.

4. The hydraulically driven bidirectional transport vehicle according to claim 3, characterized in that: The arch frame clamping assembly (300) is arranged in several units at intervals. Each arch frame clamping assembly (300) includes an arch frame clamping cylinder mounted on the frame system (100). The output end of the arch frame clamping cylinder is hinged to the clamping rod (310). The root of the clamping rod (310) is hinged to the frame system (100). When the arch frame clamping cylinder is working, it can drive the clamping rod (310) to switch between falling down and standing up.

5. The hydraulically driven bidirectional transport vehicle according to claim 4, characterized in that: The rear end of the frame system (100) is provided with a rear baffle (130) for blocking the rear end of the arch frame, and the width of the rear baffle (130) matches the width of the arch frame placement area.

6. The hydraulically driven bidirectional transport vehicle according to claim 3, characterized in that: On the left and right sides of the frame system (100), there are mounting blocks (120) at the positions of each stop bar (110), and the upper end of the mounting block (120) is provided with a mounting groove for the stop bar (110) to be inserted and installed.

7. The hydraulically driven bidirectional transport vehicle according to claim 1 or 3, characterized in that: The frame system (100) is also equipped with a rebar unloading assembly (200) for unloading rebar. The rebar unloading assembly (200) includes a rebar unloading cylinder installed on the frame system (100). The output end of the rebar unloading cylinder is hinged to the unloading rod (210). The root of the unloading rod (210) is hinged to the frame system (100). When the rebar unloading cylinder is working, it can drive the unloading rod (210) to switch between falling down and standing up.

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