Auxiliary towing device for mine towed vehicle and vehicle

Abstract

The utility model relates to the technical field of mining equipment, in particular to an auxiliary towing device for a mine towed vehicle and the vehicle, which comprises an external power mechanism, a brake external pipeline and a steering external pipeline, and the brake external pipeline and the steering external pipeline are connected with the external power mechanism; the brake external pipeline can be connected with a brake hydraulic pipeline of a dragged vehicle; the steering external pipeline can be connected with a steering hydraulic pipeline of a towed vehicle; the external power mechanism can be connected with a hydraulic oil tank of a towed vehicle, provides hydraulic power for a braking hydraulic pipeline of the towed vehicle through the braking external pipeline and provides hydraulic power for a steering hydraulic pipeline of the towed vehicle through the steering external pipeline. According to the utility model, the brake of a faulty vehicle can be relieved, and the faulty vehicle can be stopped. According to the utility model, a faulty vehicle can also turn.

Description

Technical Field

[0001] The utility model relates to the technical field of mining equipment, in particular to an auxiliary trailer device and a vehicle for a towed vehicle in a mine. Background Art

[0002] Due to the harsh working environment and certain danger of mining engineering vehicles, as a special operation vehicle, when the vehicle has a system failure and cannot move, it cannot be repaired on the spot like ordinary engineering vehicles, and the vehicle needs to be transported to a safe location for repair. However, due to space and environmental limitations, it is impossible to use vehicles such as cranes or forklifts to transport the faulty vehicle to another location. Currently, the most common method is to use a tractor to tow the faulty vehicle to a safe location, and a trailer device is required for this purpose.

[0003] Since the underground mine environment is different from the general open-air environment, there may be dangers such as falling rocks. To ensure safety and prevent secondary injuries, the operator can only hang a trailer rope at a certain distance from the faulty vehicle to the hook at the rear of the vehicle and use a tractor to tow the faulty vehicle away from the accident site.

[0004] Since the braking system of mining vehicles generally adopts the method of spring braking and hydraulic release. Therefore, when the vehicle fails, it is in a braked state and it is simply impossible to tow the faulty vehicle. To facilitate towing, the brakes of the vehicle must be released first, but without a power source, there is no hydraulic oil for brake release at the axle, and based on safety considerations, the operator cannot approach the vehicle to disassemble the axle to manually release the brakes.

[0005] At the same time, during the towing process, the road surface is uneven and there are also slopes. If the tractor stops on a slope, especially when stopping downhill, the faulty vehicle also needs to be able to stop. Because if the faulty vehicle is always in a brake-released state, it may slide downhill due to inertia and the effect of the slope, and the faulty vehicle in the brake-released state may hit the tractor.

[0006] In addition, since there are many curves in the underground roadway and the faulty vehicle cannot provide the power for turning, the faulty vehicle cannot turn. Summary of the Utility Model

[0007] To solve the above problems, the purpose of the utility model is to provide an auxiliary trailer device and a vehicle for a towed vehicle in a mine.

[0008] The technical solution provided by the utility model is as follows:

[0009] In the first aspect, an auxiliary trailer device for a towed vehicle in a mine includes an external power mechanism and a braking external pipeline and a steering external pipeline connected to the external power mechanism;

[0010] Wherein:

[0011] The external brake pipeline can be connected to the brake hydraulic pipeline of the towed vehicle;

[0012] The external steering pipeline can be connected to the steering hydraulic pipeline of the towed vehicle;

[0013] The external power mechanism can be connected to the hydraulic oil tank of the towed vehicle, and provide hydraulic power to the brake hydraulic pipeline of the towed vehicle through the external brake pipeline, and provide hydraulic power to the steering hydraulic pipeline of the towed vehicle through the external steering pipeline.

[0014] As an optional technical solution of the first aspect, the external power mechanism includes a pump set, and this pump set is connected with a pump set inlet pipeline and a pump set outlet pipeline;

[0015] Wherein:

[0016] The pump set inlet pipeline is communicated with the oil tank outlet pipeline of the hydraulic oil tank through a quick connector;

[0017] The pump set outlet pipeline is communicated with the inlet end of the external steering pipeline and the inlet end of the external brake pipeline through quick connectors;

[0018] The outlet end of the external steering pipeline is communicated with the steering hydraulic pipeline of the towed vehicle;

[0019] The outlet end of the external brake pipeline is communicated with the brake hydraulic pipeline of the towed vehicle.

[0020] Optionally, the external steering pipeline includes a steering solenoid valve;

[0021] The steering solenoid valve is connected with a steering inlet pipeline, and the steering inlet pipeline is communicated with the pump set outlet pipeline through a quick connector;

[0022] The steering solenoid valve is connected with a steering outlet pipeline, and the steering outlet pipeline is communicated with the steering hydraulic pipeline of the towed vehicle through a quick connector;

[0023] The steering solenoid valve is further connected with a steering oil return branch pipe, and this steering oil return branch pipe is communicated with the oil return port of the hydraulic oil tank.

[0024] Further, the external brake pipeline includes a brake solenoid valve;

[0025] The brake solenoid valve is connected with a brake inlet pipeline, and the brake inlet pipeline is communicated with the pump set outlet pipeline through a quick connector;

[0026] The brake solenoid valve is connected with a liquid filling pipeline, and this liquid filling pipeline is connected with an accumulator;

[0027] The liquid filling pipeline is connected with a brake oil outlet pipeline, and the brake oil outlet pipeline is communicated with the brake hydraulic pipeline of the towed vehicle through a quick connector; a brake switching valve is installed on the brake oil outlet pipeline;

[0028] The brake solenoid valve is further connected with a brake oil return branch pipe, and this brake oil return branch pipe is communicated with the oil return port of the hydraulic oil tank.

[0029] Furthermore, both the steering oil return branch pipe and the brake oil return branch pipe are communicated with the main oil return pipe;

[0030] The main oil return pipe is communicated with the oil return port of the hydraulic oil tank through a quick connector.

[0031] Optionally, the steering external pipeline further includes a steering pressure relief pipeline connecting the steering oil inlet pipeline and the main oil return pipe, and a steering safety valve is installed on this steering pressure relief pipeline.

[0032] Optionally, the brake external pipeline further includes a brake pressure relief pipeline connecting the brake oil inlet pipeline and the main oil return pipe, and a brake safety valve is installed on this brake pressure relief pipeline.

[0033] Optionally, a pressure sensor is installed on the liquid filling pipeline, and this pressure sensor is used to detect the pressure of the liquid filling pipeline;

[0034] When the pressure of the liquid filling pipeline is lower than the pressure replenishment value, the brake solenoid valve is in the energized state, and the brake oil inlet pipeline fills the accumulator with liquid;

[0035] When the pressure of the liquid filling pipeline reaches the stop pressure value, the brake solenoid valve is in the de-energized state, and the brake oil inlet pipeline does not fill the accumulator with liquid.

[0036] As an optional technical solution of the first aspect, the external power mechanism further includes a storage battery, which is used to provide power for the auxiliary trailer device.

[0037] In the second aspect, a vehicle includes the auxiliary trailer device in any one of the technical solutions of the first aspect.

[0038] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0039] The external power mechanism provided by the present utility model can be connected with the hydraulic oil tank of the mine towed vehicle, utilize the hydraulic oil in the hydraulic oil tank to provide hydraulic power, and provide the hydraulic power for the brake hydraulic pipeline of the towed vehicle when the towed vehicle releases the brake and brakes through the brake external pipeline. The present utility model can realize releasing the brake of the faulty vehicle during towing, and can also provide brake hydraulic power for the faulty vehicle, so that the faulty vehicle can also stop, preventing danger from occurring.

[0040] In addition, the utility model provides the hydraulic power required during steering to the steering hydraulic pipeline of the towed vehicle through the steering external pipeline, so that the faulty vehicle can also turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of an auxiliary trailer device in an embodiment of the present application;

[0042] Figure 2 Schematic diagram of the braking external pipeline and the steering external pipeline in an embodiment of the present application.

[0043] Explanation of the reference numerals in the schematic diagram:

[0044] Quick connector 101, pump unit 102, first oil inlet pipeline 103, second oil inlet pipeline 104, second oil outlet pipeline 105, first oil outlet pipeline 106, hydraulic oil tank 107, foot brake valve 108, shuttle valve 109, oil return port 110, steering hydraulic pipeline 111, braking hydraulic pipeline 112;

[0045] Steering oil inlet pipeline 201, steering solenoid valve 202, steering oil return branch pipe 203, steering oil outlet pipeline 204, oil return main pipe 205, steering pressure relief pipeline 206, steering safety valve 207, braking oil inlet pipeline 208, braking solenoid valve 209, braking oil return branch pipe 210, filling pipeline 211, braking switching valve 212, braking oil outlet pipeline 213, braking pressure relief pipeline 214, braking safety valve 215, accumulator 216, pressure sensor 217;

[0046] Storage battery 301, controller 302, remote control transmitter 303, remote control receiver 304. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0048] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope that can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can be implemented.

[0049] In one embodiment, asFigure 1 As shown in the figure, an auxiliary trailer device for a mine towed vehicle includes an external power mechanism, a brake external pipeline, and a steering external pipeline connected to the external power mechanism.

[0050] Among them, the brake external pipeline can be connected to the brake hydraulic pipeline 112 of the towed vehicle. Here, the connection means that when the towed vehicle breaks down, the brake external pipeline and the brake hydraulic pipeline 112 of the towed vehicle are in a connected state. The steering external pipeline can be connected to the steering hydraulic pipeline 111 of the towed vehicle. Here, the connection means that when the towed vehicle breaks down, the steering external pipeline can be in a connected state with the steering hydraulic pipeline 111 of the towed vehicle.

[0051] Specifically, the external power mechanism can be connected to the hydraulic oil tank 107 of the towed vehicle, and provide hydraulic power to the brake hydraulic pipeline 112 of the towed vehicle through the brake external pipeline, and provide hydraulic power to the steering hydraulic pipeline 111 of the towed vehicle through the steering external pipeline. The external power mechanism utilizes the hydraulic oil in the hydraulic oil tank 107 of the towed vehicle, so that this auxiliary trailer device does not need to be provided with an independent hydraulic oil tank, making the overall auxiliary trailer device lighter.

[0052] After the hydraulic oil in the hydraulic oil tank 107 of the towed vehicle is extracted by the external power mechanism, through the external brake external pipeline and steering external pipeline, it can respectively provide external hydraulic power to the brake hydraulic pipeline 112 and the steering hydraulic pipeline 111 of the towed vehicle, so that the towed vehicle has the functions of releasing the brake, braking, and steering. This auxiliary trailer device can release the brake of the faulty vehicle when towing, and can also provide brake hydraulic power to the faulty vehicle to make the faulty vehicle stop and prevent danger. In addition, this auxiliary trailer device can provide the hydraulic power required for steering to the steering hydraulic pipeline of the towed vehicle through the steering external pipeline, so that the faulty vehicle can also turn.

[0053] The external power mechanism further includes a storage battery 301, which is used to provide power for the auxiliary trailer device, that is, the storage battery 301 can provide power for each solenoid valve.

[0054] For an external power mechanism, in one embodiment, the external power mechanism includes a pump set 102, which can be a diesel engine pump set for example, and this pump set 102 mainly provides hydraulic power. The pump set 102 is connected with a pump set inlet pipeline and a pump set outlet pipeline. Among them, the pump set inlet pipeline is communicated with the tank outlet pipeline of the hydraulic oil tank 107 through a quick connector 101, and the pump set outlet pipeline is communicated with the inlet end of the steering external pipeline and the inlet end of the braking external pipeline through a quick connector 101. At the same time, the outlet end of the steering external pipeline is communicated with the steering hydraulic pipeline 111 of the towed vehicle, and the outlet end of the braking external pipeline is communicated with the braking hydraulic pipeline 112 of the towed vehicle. The hydraulic power provided by the pump set 102 can be supplied to the steering hydraulic pipeline 111 and the braking hydraulic pipeline 112 of the towed vehicle.

[0055] The pump set inlet pipeline includes a first inlet pipeline 103 and a second inlet pipeline 104, and the tank outlet pipeline of the hydraulic oil tank 107 includes a first outlet pipeline 106 and a second outlet pipeline 105. Among them, the first inlet pipeline 103 can be communicated with the first outlet pipeline 106 through a quick connector 101, and the second inlet pipeline 104 can be communicated with the second outlet pipeline 105 through a quick connector 101. The hydraulic oil in the first inlet pipeline 103 is transported by the pump set 102 to the braking external pipeline. The hydraulic oil in the second inlet pipeline 105 is transported by the pump set 102 to the steering external pipeline.

[0056] For the steering external pipeline, as Figure 2 shown, in one embodiment, the steering external pipeline includes a steering solenoid valve 202. The steering solenoid valve 202 is connected with a steering inlet pipeline 201. The steering inlet pipeline 201 is communicated with the pump set outlet pipeline through a quick connector 101. The steering solenoid valve 202 is connected with a steering outlet pipeline 204. The steering outlet pipeline 204 is communicated with the steering hydraulic pipeline 111 of the towed vehicle through a quick connector 101.

[0057] The steering solenoid valve 202 is energized and switched, so as to provide hydraulic power to the steering hydraulic pipeline 111 of the towed vehicle, and the hydraulic oil enters the steering cylinder of the towed vehicle for the towed vehicle to steer.

[0058] For the braking external pipeline, as Figure 2 shown, in one embodiment, the braking external pipeline includes a braking solenoid valve 209. The braking solenoid valve 209 is connected with a braking inlet pipeline 208. The braking inlet pipeline 208 is communicated with the pump set outlet pipeline through a quick connector 101. The braking solenoid valve 209 is connected with a liquid filling pipeline 211. This liquid filling pipeline 211 is connected with an accumulator 216. The liquid filling pipeline 211 is connected with a braking outlet pipeline 213. The braking outlet pipeline 213 is communicated with the braking hydraulic pipeline 112 of the towed vehicle through a quick connector 101. A braking switching valve 212 is installed on the braking outlet pipeline 213.

[0059] This auxiliary trailer device further includes a controller 302, which is electrically connected to a remote control receiver 304, and the remote control receiver 304 is communicatively connected to a remote control transmitter 303. The controller 302 is connected to a brake solenoid valve 209 and a steering solenoid valve 202. The energization or de-energization of these two solenoid valves, namely the brake solenoid valve 209 and the steering solenoid valve 202, can be controlled through the remote control transmitter 303. This is relatively mature in the prior art and will not be elaborated here.

[0060] A pressure sensor 217 is installed on the liquid filling pipeline 211, and this pressure sensor 217 is used to detect the pressure of the liquid filling pipeline 211. The pressure sensor 217 is also electrically connected to the controller 302. Two pressure values, a high pressure value and a low pressure value, are set. The high pressure value is the stop pressure value, and the low pressure value is the pressure replenishment value. When the pressure of the liquid filling pipeline 211 is lower than the pressure replenishment value, the brake solenoid valve 209 is in the energized state, and the brake oil inlet pipeline 208 fills the accumulator 216 with liquid; when the pressure of the liquid filling pipeline 211 reaches the stop pressure value, the brake solenoid valve 209 is in the de-energized state, and the brake oil inlet pipeline 208 does not fill the accumulator 216 with liquid.

[0061] The brake switching valve 212 is used to control the brake oil. After switching, the oil in the accumulator 216 enters the axle housing of the towed vehicle to release the brake. Specifically, the brake hydraulic oil enters the foot brake valve 108 through the shuttle valve 109 and then enters the axle to release the vehicle brake. When braking is required, the foot brake valve 108 is depressed, and the brake hydraulic oil in the axle housing passes through the foot brake valve 108 and the circuit back to the hydraulic oil tank 107 to achieve vehicle braking.

[0062] When towing, the auxiliary trailer device can be placed on the towed vehicle, and all quick connectors and circuits are connected as required. The operator sits in a safe cab with the remote control transmitter 303, operates the brake release button to energize the brake solenoid valve 209, first fills the accumulator 216 with liquid, and then switches the brake switching valve 212 to release the brake. During vehicle driving, the foot brake valve can be depressed as needed to achieve vehicle braking, or the steering button on the remote control transmitter 303 can be operated as needed to operate the vehicle to turn left and right.

[0063] The steering solenoid valve 202 is also connected to a steering oil return branch pipe 203, and this steering oil return branch pipe 203 is communicated with the oil return port 110 of the hydraulic oil tank 107. The brake solenoid valve 209 is also connected to a brake oil return branch pipe 210, and this brake oil return branch pipe 210 is communicated with the oil return port 110 of the hydraulic oil tank 107. Specifically, both the steering oil return branch pipe 203 and the brake oil return branch pipe 210 are communicated with the main oil return pipe 205. The main oil return pipe 205 is communicated with the oil return port 110 of the hydraulic oil tank 107 through a quick connector 103. The hydraulic oil in the circuit finally returns to the hydraulic oil tank 107.

[0064] To protect the pipeline and prevent excessive pressure. The steering external pipeline further includes a steering pressure relief pipeline 206 connecting the steering inlet oil pipeline 201 and the main return oil pipeline 205, and a steering safety valve 207 is installed on this steering pressure relief pipeline 206. The steering safety valve 207 can be a pneumatic valve. When the pressure in the steering inlet oil pipeline 201 is too high, the steering safety valve 207 opens, and the hydraulic oil with a relatively high pressure in the steering inlet oil pipeline 201 enters the main return oil pipeline 205 through the steering pressure relief pipeline 206.

[0065] Similarly, the braking external pipeline further includes a braking pressure relief pipeline 214 connecting the braking inlet oil pipeline 208 and the main return oil pipeline 205, and a braking safety valve 215 is installed on this braking pressure relief pipeline 214. The braking safety valve 215 can be a pneumatic valve. When the pressure in the braking inlet oil pipeline 208 is too high, the braking safety valve 215 opens, and the hydraulic oil with a relatively high pressure in the braking inlet oil pipeline 208 enters the main return oil pipeline 205 through the braking pressure relief pipeline 214.

[0066] The present utility model also proposes a vehicle, including the above-mentioned auxiliary trailer device.

[0067] The above schematically describes the present utility model and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. An auxiliary trailer device for a towed vehicle in a mine, characterized in that: It includes an external power mechanism and a braking external pipe line and a steering external pipe line connected with the external power mechanism; in: The brake external pipeline can be connected to the brake hydraulic pipeline (112) of the towed vehicle; The steering external pipeline can be connected to the steering hydraulic pipeline (111) of the towed vehicle; The external power mechanism can be connected to the hydraulic oil tank (107) of the towed vehicle, and provide hydraulic power to the brake hydraulic pipeline (112) of the towed vehicle through the brake external pipeline, and provide hydraulic power to the steering hydraulic pipeline (111) of the towed vehicle through the steering external pipeline.

2. The auxiliary trailer device according to claim 1, characterized in that: The external power mechanism comprises a pump group (102), and the pump group (102) is connected to a pump group oil inlet pipeline and a pump group oil outlet pipeline; in: The oil inlet pipeline of the pump group is connected to the oil outlet pipeline of the hydraulic oil tank (107) through a quick-connect connector (101); The oil outlet pipeline of the pump group is connected to the oil inlet end of the steering external pipeline and the oil inlet end of the brake external pipeline through a quick-connect connector (101); The oil outlet end of the steering external pipeline is communicated with the steering hydraulic pipeline (111) of the towed vehicle; The oil outlet end of the brake external pipeline is communicated with the brake hydraulic pipeline (112) of the towed vehicle.

3. The auxiliary trailer device according to claim 2, characterized in that: The steering external pipeline includes a steering solenoid valve (202); The steering solenoid valve (202) is connected to a steering oil inlet pipeline (201), and the steering oil inlet pipeline (201) is connected to the pump group oil outlet pipeline through a quick-connect connector (101); The steering solenoid valve (202) is connected to a steering oil outlet pipeline (204), and the steering oil outlet pipeline (204) is connected to a steering hydraulic pipeline (111) of the towed vehicle through a quick-connect connector (101); The steering solenoid valve (202) is also connected to a steering oil return branch pipe (203), and the steering oil return branch pipe (203) is in communication with an oil return port (110) of a hydraulic oil tank (107).

4. The auxiliary trailer device according to claim 3, characterized in that: The brake external pipeline includes a brake solenoid valve (209); The brake solenoid valve (209) is connected to a brake oil inlet pipeline (208), and the brake oil inlet pipeline (208) is connected to the pump group oil outlet pipeline through a quick-connect connector (101); The brake solenoid valve (209) is connected to a liquid filling pipeline (211), and the liquid filling pipeline (211) is connected to an accumulator (216); The filling pipeline (211) is connected to a brake oil outlet pipeline (213), and the brake oil outlet pipeline (213) is connected to a brake hydraulic pipeline (112) of the towed vehicle through a quick-connect connector (101); a brake switching valve (212) is installed on the brake oil outlet pipeline (213); The brake solenoid valve (209) is also connected to a brake oil return branch pipe (210), and the brake oil return branch pipe (210) is in communication with an oil return port (110) of a hydraulic oil tank (107).

5. The auxiliary trailer device according to claim 4, characterized in that: The steering oil return branch pipe (203) and the brake oil return branch pipe (210) are both connected to the oil return main pipe (205); The oil return main pipe (205) is connected to the oil return port (110) of the hydraulic oil tank (107) via a quick-connect plug (103).

6. The auxiliary trailer device for a towed vehicle in a mine according to claim 5, characterized in that: The steering external pipeline further comprises a steering pressure relief pipeline (206) connecting the steering oil inlet pipeline (201) and the oil return main pipeline (205), and a steering safety valve (207) is installed on the steering pressure relief pipeline (206).

7. The auxiliary trailer device according to claim 5, characterized in that: The brake external pipeline also includes a brake pressure relief pipeline (214) connecting the brake oil inlet pipeline (208) and the oil return main pipeline (205), and a brake safety valve (215) is installed on the brake pressure relief pipeline (214).

8. The auxiliary trailer device according to claim 4, characterized in that: A pressure sensor (217) is installed on the liquid filling pipeline (211), and the pressure sensor (217) is used to detect the pressure of the liquid filling pipeline (211); When the pressure of the filling pipeline (211) is lower than the compensation pressure value, the brake solenoid valve (209) is in an energized state, and the brake oil inlet pipeline (208) fills the accumulator (216) with liquid; When the pressure of the filling pipeline (211) reaches the stop pressure value, the brake solenoid valve (209) is in a power-off state, and the brake oil inlet pipeline (208) does not fill the accumulator (216) with liquid.

9. The auxiliary trailer device according to any one of claims 2 to 8, characterized in that: The external power mechanism also includes a storage battery (301) which is used to provide power for the auxiliary trailer device.

10. A vehicle, characterized in that: The invention comprises the auxiliary trailer device as claimed in any one of claims 1 to 9.

Images