Safety device for transportation mine car

Abstract

The utility model relates to the field of mineral transportation safety devices, in particular to a safety device for a transportation mine car, which comprises a multi-way valve arranged in the transportation mine car and communicated with a plurality of air pipes, and the plurality of air pipes are communicated with a brake system of the transportation mine car and extend below one end, close to a car head, of a large box; the air pump is communicated with the multi-way valve through an air pipe and serves as an air supply source of the multi-way valve; the elastic air tap is arranged at the bottom of the transportation mine car and below the large box and connected with the large box and a chassis of the transportation mine car, the connecting assembly is connected with the air pipes, and the elastic air tap is opened and closed along with lifting of the large box. The method has the effect of improving the safety performance of the transportation mine car.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mineral transport safety devices, in particular to a safety device for a transport mine car. BACKGROUND

[0002] Open pit mine production is a complex and high-risk industrial activity, and mine transport cars are the main transport tools in ore transportation. Due to the complex mine terrain, winding roads, and numerous equipment, the process of transporting ore from the mining face to the crushing station, processing plant or unloading point is relatively dangerous.

[0003] The transport mine car is usually composed of a car head and a car body, and the car body is also called a large box. The lifting and lowering of the large box is an important part of the operation of the mine car. When loading ore, the large box needs to be lifted so that the ore can be smoothly poured into the car body; and during transportation and unloading, the large box must be lowered to ensure the stability and safety of the vehicle.

[0004] If the driver forgets to lower the large box before starting the transport mine car, the cable and wire may be easily hung during walking, and the building may be damaged. This is a problem of non-standard operation of the driver, and there is no related device to remind the driver to lower the large box or prevent the mine car from driving in the case that the large box is not lowered. Therefore, it is necessary to design a safety device to ensure that the large box is lowered. CONTENT OF THE INVENTION

[0005] In order to improve the safety performance of the transport mine car, the present application provides a safety device for a transport mine car.

[0006] The safety device for a transport mine car provided by the present application adopts the following technical scheme:

[0007] A safety device for a transport mine car comprises:

[0008] A multi-way valve is arranged inside the transport mine car and is connected to multiple air pipes. The multiple air pipes are connected to the braking system of the transport mine car, and the multiple air pipes extend below the end of the large box close to the car head.

[0009] An air pump is connected to the multi-way valve through the air pipes and provides air source for the multi-way valve.

[0010] An elastic air nozzle is arranged below the bottom of the transport mine car and the large box, and is connected to the chassis of the transport mine car and the large box. The connecting assembly is connected to the multiple air pipes and lifts and lowers with the large box. The elastic air nozzle is opened and closed.

[0011] By adopting the above technical scheme, a matched air pump and multi-way valve are arranged inside the transport mine car to form a safety device. The air pump provides air source, the air is delivered into the air pipes through the multi-way valve, and the high-pressure gas is delivered into the braking system of the transport mine car through the air pipes.

[0012] Specifically, the elastic air nozzle extends to above the chassis of the vehicle, and is in an open state when the large box is pressed downward during normal transportation of the mine car, so that the air pipe connected with the multi-way valve is communicated with the outside world, and the air pipe is kept deflated. At this time, the air pipe has no air pressure braking effect on the braking system, so that the hand brake is in a normal closed state, and the driver can freely lower the hand brake. When the mine car is fully loaded and the vehicle does not fall into the large box, the elastic air nozzle is in a free state, at this time, the air pump continuously supplies air, and the gas cannot be released to the outside world through the elastic air nozzle. The internal air pressure of the elastic gas formed by the multi-way valve and the air pipe is high, and the braking system of the vehicle is subjected to air pressure braking. The vehicle is always in a braking state, and the driver cannot lower the hand brake. Through the technical scheme, the vehicle cannot be normally driven in the case that the driver forgets to lower the large box, thereby avoiding danger.

[0013] Optionally, the air pipe connected with the multi-way valve is a hard rubber pipe.

[0014] By adopting the above technical scheme, the hard rubber pipe, as a very common air conveying pipe, has good wear resistance and impact resistance, and can adapt to deformation under normal conditions, so it is suitable for industrial use. In addition, the hard rubber pipe has low cost and high cost performance.

[0015] Optionally, the valve body of the multi-way valve is mounted on the bottom beam above the chassis of the mine car.

[0016] By adopting the above technical scheme, protection is formed for the air valve and the air pipe. The longer part of the air pipe connected with the multi-way valve is mainly the air pipe connected with the hand brake and the air pipe connected with the chassis of the mine car. Therefore, while taking into account the protection of the air valve and the air pipe, the multi-way valve is arranged below the chassis of the mine car to avoid that any group of air pipes connected with the elastic air nozzle or the air pressure braking system is too long.

[0017] More importantly, the bottom beam at the top end of the chassis of the mine car is the vehicle structure with the largest structural strength. The safety device is arranged in the part with the highest stability.

[0018] Optionally, the air pipe is connected with the main cylinder of the braking system.

[0019] By adopting the above technical scheme, the air pressure in the air pipe is high when the large box is not lowered, the gas is delivered to the inside of the main cylinder of the air pressure braking system, the elastic air nozzle is not opened, the main cylinder is equivalent to being closed, and the push rod of the hand brake cannot be lowered, thereby realizing continuous braking.

[0020] Optionally, the safety device further comprises:

[0021] The alarm lamp is arranged in the cockpit, and the elastic switch is arranged on one side of the elastic air nozzle. The alarm lamp is controlled to be turned on or turned off according to the lifting and lowering of the large box.

[0022] By adopting the technical scheme, the alarm lamp is arranged to remind the driver that the large box has not fallen when the vehicle starts, and the alarm lamp flashes synchronously when the vehicle cannot normally fall, so that the safety performance of the safety device in the technical scheme is enhanced, that is, the elastic switch controls the closing of the alarm lamp circuit, the opening of the elastic air nozzle is synchronous with the disconnection of the alarm lamp circuit, the large box of the transport mine car has not been lowered, the elastic air nozzle is closed, and the alarm lamp circuit is in an open state, and the alarm lamp is in a flashing state, reminding the driver in the cab that the large box has not been lowered.

[0023] Optionally, the safety device further comprises:

[0024] The motion sensor is arranged at the wheel of the transport mine car and detects the rotation of the wheel of the transport mine car.

[0025] By adopting the technical scheme, the practicability of the safety device is further improved; if only the alarm lamp is used without the motion sensor, the alarm lamp is in a flashing state when the large box of the transport mine car is lifted and filled with ore, and the alarm lamp is still in a flashing state when the large box is filled with ore and not lowered, so that the state does not change, which may mislead the technician, and therefore, the motion sensor is arranged, and a logic operator is arranged on the main control panel of the vehicle, so that the alarm lamp will only maintain the flashing state when the motion sensor detects the rotation of the tire and the alarm lamp circuit is not disconnected.

[0026] Optionally, the multi-way valve is a five-way valve.

[0027] By adopting the technical scheme, the five-way valve is the simplest structure of the valve for realizing the technical scheme, one air pipe is connected to the air pump to continuously supply air to the five-way valve, two air pipes are connected to the hand brake to supply air to the main cylinder of the transport mine car, and two air pipes are connected to the elastic air nozzle to supply air after the elastic air nozzle is opened.

[0028] Optionally, the safety device further comprises:

[0029] The alarm is synchronous with the operation of the alarm lamp and issues an alarm.

[0030] By adopting the technical scheme, the alarm is synchronous with the alarm lamp, the alarm lamp flashes to prompt the driver, and the alarm issues an alarm from the sound, so that the safety performance of the safety device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is an installation diagram of the embodiment of the application.

[0032] Figure 2 is a schematic diagram of the overall structure of the embodiment of the application.

[0033] Figure 3 is a schematic diagram of the structure of the elastic air nozzle in the embodiment of the application.

[0034] Explanation of reference signs: 1, bottom beam; 2, large box; 3, five-way valve; 31, air pump; 4, elastic air nozzle. DETAILED DESCRIPTION

[0035] The following will be described in detail with reference to the accompanying drawings Figures 1-3 The application is further described in detail.

[0036] The application discloses a safety device for a transport mine car. Figure 1 The safety device for the transport mine car comprises an air pressure brake assembly and an alarm assembly.

[0037] The air pressure brake assembly comprises a five-way valve 3 arranged on the chassis bottom beam 1 of the transport mine car.

[0038] The five-way valve 3 is an air valve, and four valve ports of the five-way valve 3 are evenly arranged at two ends of the valve body, and one valve port is arranged at the middle part of the valve body of the five-way valve 3. Figure 1 The valve ports of the five-way valve 3 are each connected with an air pipe for conveying air. Figure 2 The air pipe at the middle part of the valve body of the five-way valve 3 is connected with an air pump 31 at one end and communicates with the air outlet of the air pump 31. The air pump 31 is always kept in operation to ensure sufficient air pressure in the air conveying system composed of the valve body of the five-way valve 3 and the air pipe.

[0039] Figure 2 The two air pipes at one end of the valve body of the five-way valve 3 communicate with an elastic air nozzle 4. Figure 3 The elastic air nozzle 4 is vertically arranged at the connecting part between the bottom beam 1 and the bottom end of the large box 2 of the transport mine car. In other words, the opening end of the elastic air nozzle 4 protrudes from the top end of the bottom beam 1, and a structural member for pressing down the opening end of the elastic air nozzle 4 is formed on the large box 2 of the mine car.

[0040] In other embodiments, the air pipe connected to the elastic air nozzle 4 can be provided as one, which depends on the specification of the elastic air nozzle 4. In the present embodiment, in order to improve the reliability of the safety device, the elastic air nozzle 4 adopts a double inlet type, and therefore, two air pipes are needed, and correspondingly, a five-way valve 3 is needed. In the case where the air pipe connected to the elastic air nozzle 4 is provided as one, a four-way valve can be adopted.

[0041] With reference to Figure 1 With Figure 2 The other two air pipes of the five-way valve 3 are connected to the hand brake part of the transport mine car. Since most large vehicles including transport mine cars and trucks adopt air pressure braking at present, the air pipe is connected to the main cylinder of the air pressure braking system of the transport mine car, one end of which is the air inlet end of the main cylinder, and the other end of which is the air outlet end of the main cylinder. When the above-mentioned elastic air nozzle 4 is in a closed state and has no communication with the outside world, the air pipe is in a high-pressure state, the main cylinder cannot deflate, and the hand brake cannot fall, or the vehicle is still in a braking state after the hand brake falls.

[0042] Therefore, if the driver forgets to lower the large box 2 after lifting the large box 2 for unloading or loading, the vehicle will always be in a braking state and cannot move, which avoids the risk of starting the vehicle in the case where the driver forgets to lower the large box 2.

[0043] With reference to Figure 1 In order to protect the valve body of the multi-way valve, the valve body is installed on the bottom beam 1 of the chassis of the transport mine car, i.e. the bottom of the large box 2. This part is close to the inside and can better protect the multi-way valve. In the case of rough road conditions, mud splashing, rain and snow, and strong wind, the valve body of the multi-way valve receives the lowest impact.

[0044] In order to save costs and improve the performance-price ratio of the safety device, the air pipe in the present embodiment is made of hard rubber.

[0045] Alarm component:

[0046] In order to improve the reliability of the safety device, an alarm component should be provided inside the vehicle compartment to remind the driver when the large box 2 is not lowered for driving. A motion sensor is provided on one side of the wheel of the transport mine car, which can be a grating sensor or an angular velocity sensor. When it is determined that the vehicle is in a form state by detecting the wheel speed, the driver is reminded to lower the large box 2.

[0047] The cabin is provided with an alarm lamp and an alarm, the alarm lamp flashes, the alarm gives an alarm to remind the driver, and the transport mine car should be provided with a logic operator. The disconnection of the alarm lamp circuit should be synchronized with the opening of the elastic air nozzle 4, that is, the opening end of the elastic air nozzle 4 is pressed down to make the circuit of the alarm lamp complete, so that the alarm lamp can flash; the large box 2 of the transport mine car is not lowered, the elastic air nozzle 4 is closed, and at the same time, the alarm lamp circuit is in an open state, the alarm lamp is in a flashing state, and the driver in the cab is reminded that the large box 2 is not lowered; the alarm is synchronized with the operation of the alarm lamp.

[0048] The implementation principle of the safety device for the transport mine car is that one end of the elastic air nozzle 4 extends above the automobile chassis, and when the transport mine car normally transports ore, the elastic air nozzle 4 is in an open state under the pressure of the large box 2, so that the gas pipe connected with the multi-way valve is connected with the outside world, and the gas is released; at this time, the gas pipe has no gas pressure braking effect on the braking system, so that the hand brake is in a normal closable state, and the driver can arbitrarily lower the hand brake; when the ore loading is completed and the vehicle does not fall into the large box 2, the elastic air nozzle 4 is in a free state without force, at this time, the air pump 31 continuously supplies gas, and the gas cannot be released to the outside world through the elastic air nozzle 4, the internal gas pressure of the elastic gas composed of the multi-way valve and the gas pipe is high, the braking system of the automobile is subjected to gas pressure braking, and the vehicle is always in a braking state, thereby avoiding danger.

[0049] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A safety device for transporting mining cars, characterized in that, include: A multi-way valve is installed inside the transport mine car and connects to multiple air pipes. The multiple air pipes are connected to the braking system of the transport mine car and extend below the large box (2) near the front of the car. An air pump (31) is connected to the multi-way valve through the air pipe, serving as the air supply source for the multi-way valve; The flexible air nozzle (4) is located at the bottom of the transport mine car and below the large box (2), connecting the large box (2) and the chassis of the transport mine car. The flexible air nozzle (4) is connected to multiple air pipes. As the large box (2) is raised and lowered, the flexible air nozzle (4) opens and closes.

2. The safety device for transporting mining cars according to claim 1, characterized in that: All air pipes connected to the multi-way valve are made of rigid rubber tubing.

3. A safety device for transporting mining cars according to claim 1, characterized in that: The valve body of the multi-way valve is mounted on the bottom beam (1) above the chassis of the transport mine car.

4. A safety device for transporting mining cars according to claim 1, characterized in that: The air pipe connects to the master cylinder of the braking system.

5. A safety device for transporting mining cars according to claim 1, characterized in that, Also includes: The alarm light is located in the cockpit. A flexible switch is provided on one side of the flexible air valve (4) to control the alarm light to turn on and off as the large box (2) is raised and lowered.

6. A safety device for transporting mining cars according to claim 5, characterized in that: Also includes: Motion sensors are installed at the wheels of the mining truck to detect the rotation of the wheels.

7. A safety device for transporting mining cars according to claim 1, characterized in that: The multi-way valve is a five-way valve (3).

8. A safety device for transporting mining cars according to claim 5, characterized in that, Also includes: The alarm operates in sync with the alarm light, emitting an alarm.

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