Remote control pneumatic flat car

Abstract

The utility model relates to a remote control pneumatic flat car which comprises a car frame, crawler wheels are installed on the two sides of the car frame, a carrying platform is arranged on the upper portion of the car frame, surrounding plates are rotatably installed on the periphery of the carrying platform, and a left walking motor, a right walking motor, a hydraulic control reversing valve, a high-low speed switching valve, a hydraulic pump, a pneumatic motor and a hydraulic oil tank are installed on the car frame. The left walking motor and the right walking motor are respectively connected with a left crawler wheel and a right crawler wheel on the frame, the left walking motor and the right walking motor are both communicated with the hydraulic control reversing valve and the high-low speed switching valve, and the hydraulic oil tank is communicated with the hydraulic control reversing valve and the high-low speed switching valve through an oil suction pipe. The hydraulic control reversing valve and the high and low speed switching valve are communicated with the hydraulic oil tank through an oil return pipe, and the oil suction pipe is communicated with a hydraulic pump which is communicated with an air source through a pneumatic motor. The device takes compressed air as a power source and adopts remote control, so that human and vehicle following is avoided, the safety performance is further improved, the labor intensity of workers is reduced, and the transportation efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transport equipment, in particular to a remote-controlled pneumatic flatbed vehicle. Background Art

[0002] Tracked transport vehicles are widely used in mines, but safety and stability are paramount. The gearboxes of these vehicles have high speeds, low torque, limited carrying capacity, and poor safety. Pneumatic motors are now widely used in a wide range of environments. They offer high safety performance, enabling uninterrupted operation without sparks, overheating, explosions, or short circuits. They can be used in harsh environments such as high temperatures, humidity, and high dust levels, and are particularly suitable for environments with flammable and explosive materials or high temperatures.

[0003] In mines, crawler carriers use pneumatic motors as their power source. However, the speed of pneumatic motors is very high, and the high speed and low torque make them not easy to use. In addition, manual operation is required on the flatbed truck, which undoubtedly increases safety risks. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a remote-controlled pneumatic flatbed vehicle to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the technical solutions adopted are as follows:

[0006] A remote-controlled pneumatic flatbed truck comprises a frame, track wheels are installed on both sides of the frame, a carrying platform is provided on the upper part of the frame, and a panel is installed for rotation around the carrying platform. A left travel motor, a right travel motor, a hydraulically controlled reversing valve, a high-speed and low-speed switching valve, a hydraulic pump, a pneumatic motor and a hydraulic oil tank are installed on the frame. The left travel motor and the right travel motor are respectively connected to the left and right track wheels on the frame. The left travel motor and the right travel motor are both connected to the hydraulically controlled reversing valve and the high-speed and low-speed switching valve. The hydraulic oil tank is connected to the hydraulically controlled reversing valve and the high-speed and low-speed switching valve through an oil suction pipe. The hydraulically controlled reversing valve and the high-speed and low-speed switching valve are then connected to the hydraulic oil tank through an oil return pipe. The oil suction pipe is connected to a hydraulic pump, and the hydraulic pump is connected to an air source through the pneumatic motor.

[0007] An intrinsically safe control box connected to the hydraulically controlled reversing valve is also installed on the frame. The intrinsically safe control box is electrically connected to a wireless communication module. The battery powers the intrinsically safe control box. The wireless communication module outputs signals through PWM and is connected to the hydraulically controlled reversing valve through a DC solenoid for the hydraulic valve and a proportional solenoid for the hydraulic valve.

[0008] As a further improvement of the present invention, a stop valve, an oil mist collector and an air pressure gauge are sequentially connected between the air source and the pneumatic motor.

[0009] As a further improvement of the utility model, a hydraulic pressure gauge is connected to the hydraulic control reversing valve, and a relief valve is connected to the high-low speed switching valve.

[0010] As a further improvement of the utility model, an oil suction filter is installed at one end of the oil suction pipe in the hydraulic oil tank, and an oil return filter is installed at one end of the oil return pipe in the hydraulic oil tank.

[0011] The beneficial effects of the utility model are as follows:

[0012] The device uses compressed air as the power source, is small in size, convenient and flexible, labor-saving in operation, safe and reliable, high in working efficiency, and adopts remote control to avoid people and vehicles following, further improving safety performance, reducing the labor intensity of workers, and improving transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments and descriptions thereof of the utility model are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is a driving principle diagram of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine the embodiments to detail the utility model.

[0017] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0018] Please refer to Figure 1-2A remote-controlled pneumatic flatbed truck comprises a frame 1, track wheels 2 are installed on both sides of the frame 1, a carrying platform 3 is provided on the upper part of the frame 1, and a panel 4 is installed for rotation around the carrying platform 3. A left travel motor 5, a right travel motor 6, a hydraulically controlled reversing valve 7, a high-speed and low-speed switching valve 8, a hydraulic pump 9, a pneumatic motor 10 and a hydraulic oil tank 11 are installed on the frame 1. The left travel motor 5 and the right travel motor 6 are respectively connected to the track wheels 2 on the left and right sides of the frame 1, and the left travel motor 5 and the right travel motor 6 are both connected to the hydraulically controlled reversing valve 7 and the high-speed and low-speed switching valve 8. The hydraulic oil tank 11 is connected to the hydraulically controlled reversing valve 7 and the high-speed and low-speed switching valve 8 through an oil suction pipe 24, and the hydraulically controlled reversing valve 7 and the high-speed and low-speed switching valve 8 are then connected to the hydraulic oil tank 11 through an oil return pipe 25. The oil suction pipe 24 is connected to a hydraulic pump 9, and the hydraulic pump 9 is connected to an air source through the pneumatic motor 10;

[0019] An intrinsically safe control box 12 connected to the hydraulically controlled reversing valve 7 is also installed on the frame 1. A wireless communication module 13 is electrically connected to the intrinsically safe control box 12. A battery 14 supplies power to the intrinsically safe control box 12. The wireless communication module 13 outputs signals through PWM and is connected to the hydraulically controlled reversing valve 7 through a DC solenoid 15 for a hydraulic valve and a proportional solenoid 16 for a hydraulic valve.

[0020] The air source and the pneumatic motor 10 are connected in sequence with a stop valve 17, an oil mist collector 18 and an air pressure gauge 19; the hydraulic control reversing valve 7 is connected to a hydraulic gauge 20, and the high and low speed switching valve 8 is connected to a relief valve 21; an oil suction filter 22 is installed at one end of the oil suction pipe 24 in the hydraulic oil tank 11, and an oil return filter 23 is installed at one end of the oil return pipe 25 in the hydraulic oil tank 11.

[0021] Signal transmission is achieved through the mine remote control and wireless communication module 13, and the flatbed truck is controlled by remotely controlling the hydraulic reversing valve 7.

[0022] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A remotely controlled pneumatic flatbed vehicle, comprising a vehicle frame, crawler wheels are installed on both sides of the vehicle frame, a carrying platform is arranged on the upper part of the vehicle frame, and guard plates are rotatably installed around the carrying platform, and it is characterized in that: A left travel motor, a right travel motor, a hydraulic control directional valve, a high-low speed switching valve, a hydraulic pump, a pneumatic motor and a hydraulic oil tank are installed on the vehicle frame. The left travel motor and the right travel motor are respectively connected to the left and right crawler wheels on the vehicle frame. The left travel motor and the right travel motor are both connected to the hydraulic control directional valve and the high-low speed switching valve. The hydraulic oil tank is connected to the hydraulic control directional valve and the high-low speed switching valve through a suction pipe. The hydraulic control directional valve and the high-low speed switching valve are then connected to the hydraulic oil tank through a return pipe. A hydraulic pump is connected to the suction pipe. The hydraulic pump is connected to the air source through the pneumatic motor; An intrinsically safe control box connected to the hydraulic control directional valve is also installed on the vehicle frame. An intrinsically safe control box is electrically connected with a wireless communication module. The intrinsically safe control box is powered by a storage battery. The wireless communication module outputs signals through PWM and is connected to the hydraulic control directional valve through a DC electromagnet for hydraulic valve and a proportional electromagnet for hydraulic valve.

2. The remote-controlled pneumatic flatbed vehicle according to claim 1, characterized in that: A stop valve, an oil mist lubricator and a pressure gauge are successively connected between the air source and the pneumatic motor.

3. The remote control pneumatic flatbed vehicle according to claim 1, characterized in that: A hydraulic pressure gauge is connected to the hydraulic control directional valve, and a relief valve is connected to the high-low speed switching valve.

4. The remote control pneumatic flatbed vehicle according to claim 1, characterized in that: One end of the suction pipe in the hydraulic oil tank is installed with a suction oil filter, and one end of the return pipe in the hydraulic oil tank is installed with a return oil filter.

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