Support transport equipment for quickly replacing oil-electric explosion-proof power supply and use method thereof

Abstract

The present invention belongs to the technical field of underground auxiliary transportation in coal mines, and discloses a support transportation device for quickly replacing an oil-electric explosion-proof power supply, including a support transport vehicle body, an electrical system, a transmission system, a hydraulic system, an explosion-proof lead-acid battery device and a hybrid power drive device; the support transport vehicle body includes a front frame, a middle frame and a rear frame, a shovel mechanism is arranged in front of the front frame, and a front wheel is arranged below; a battery rack is arranged above the rear frame, and a rear wheel is arranged below, and the battery rack is arranged above the rear frame through a battery lifting cylinder, and the battery rack is used to set an explosion-proof lead-acid battery device or a hybrid power drive device; the front frame, the middle frame and the rear frame are all connected by an articulated structure, and the front frame and the rear frame are also connected by a steering cylinder to achieve steering, and the explosion-proof lead-acid battery device and the hybrid power drive device are used to provide power supply to the electrical system. The present invention can improve the environmental conditions of the fully mechanized working face and improve labor production efficiency.

Description

Technical Field

[0001] The invention relates to a support transport device for quickly replacing an oil-electric explosion-proof power source, belonging to the technical field of auxiliary transport in underground coal mines. Background Art

[0002] The equipment used in the comprehensive mining working face of coal mines is large in tonnage and volume. The withdrawal and installation of the working face equipment has always been a key link affecting coal mining. In recent years, with the large-scale use of trackless rubber-wheeled auxiliary transport support transporters, the efficiency of moving has gradually improved. At the same time, in order to meet the needs of green mine construction, a batch of new energy support transporters have gradually been used in the moving and reversing process of coal mines.

[0003] At present, the power source of the support transporter used in coal mines is mostly a single power source, either a high-power diesel engine or a high-power explosion-proof lead-acid battery. The support transporter using a high-power diesel engine causes environmental pollution to the auxiliary transportation lanes and working faces of coal mines during the moving process; the use of a high-power explosion-proof lead-acid battery support transporter solves the problem of environmental pollution on the working face, but has a short cruising range. The distance from the wellhead to the working face is about 20km, and the battery needs to be replaced once on the way. During the driving process, it must be followed by a diesel engine vehicle carrying batteries. The battery support transporter has a slow driving speed, and the driving time from the wellhead of the auxiliary transportation lane to the comprehensive mining working face is nearly twice as long as that of the diesel engine vehicle. Due to the limitation of the size of the auxiliary transportation lanes of coal mines, when heavy vehicles are driving, the other vehicles must follow the heavy vehicles. Therefore, compared with the diesel engine support transporter, the use of the battery support transporter is more likely to cause congestion in the auxiliary transportation lanes, which brings inconvenience to other vehicles and gradually becomes a restrictive factor affecting the working efficiency of coal mines. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and designs a support transportation equipment with a quick-change oil-electric explosion-proof power supply in response to the tunnel conditions and comprehensive mining withdrawal requirements of large coal mines in my country. The equipment combines the advantages of a high-power diesel engine and a high-power explosion-proof battery, which can ensure the heavy-load long-distance transportation of support transport vehicles in auxiliary tunnels, reduce pollution to the comprehensive mining working face environment, increase the comprehensive mining withdrawal speed and meet the green withdrawal requirements, improve the comprehensive mining working face environmental conditions, and improve labor productivity.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a bracket transport equipment with a quick replacement of oil-electric explosion-proof power supply, comprising a bracket transport vehicle body, an electrical system, a transmission system, a hydraulic system, an explosion-proof battery device and a hybrid power drive device; the bracket transport vehicle body comprises a front frame, a middle frame and a rear frame, a shovel mechanism is arranged in front of the front frame, and a front wheel is arranged below; a battery rack is arranged above the rear frame, and a rear wheel is arranged below, the battery rack is arranged at the upper rear of the rear frame through a battery lifting cylinder, and the battery rack is used to set an explosion-proof lead-acid battery device or a hybrid power drive device; the front frame, the middle frame and the rear frame are all connected by an articulated structure, and the front frame and the rear frame are also connected by a steering cylinder to achieve steering, and the explosion-proof lead-acid battery device and the hybrid power drive device are used to provide power to the electrical system.

[0006] The hybrid power drive device comprises an explosion-proof lithium-ion battery, an explosion-proof motor and an explosion-proof diesel engine. The power output end of the explosion-proof diesel engine is connected to the explosion-proof motor, and the power output end of the explosion-proof motor is connected to the explosion-proof lithium-ion battery.

[0007] The weight and installation dimensions of the hybrid power drive device are the same as those of an explosion-proof lead-acid battery device.

[0008] The electrical system includes: an electric control box, an oil pump motor, a travel motor, an oil pump inverter and a travel inverter, wherein the oil pump inverter and the travel inverter are assembled in the electric control box, and are used to control the oil pump motor and the travel motor respectively. The electric control box is provided with a quick-plug cable connector for connecting an explosion-proof lead-acid battery device or a hybrid power drive device.

[0009] The transmission system includes: a reducer, a front drive axle, a rear drive axle, front wheels, and rear wheels. The drive reducer is used to drive the front drive axle and the rear drive axle to rotate under the drive of the travel motor, thereby driving the vehicle to travel.

[0010] The hydraulic system includes a tilting cylinder, a lifting cylinder, a steering cylinder, a battery lifting cylinder, a hydraulic winch, a hydraulic pump and a hydraulic oil tank. The oil pump motor is used to drive the hydraulic pump to provide high-pressure oil for the hydraulic system of the entire vehicle.

[0011] The present invention also provides a method for using a support transport device that can quickly replace an oil-electric explosion-proof power supply. When the equipment is transported downward from the coal mine auxiliary transport wellhead, a hybrid power drive device is installed on the battery rack, and power is provided to the electrical system through the hybrid power drive device. When the equipment is transported to the comprehensive mining working face for hydraulic support adjustment, the battery lifting cylinder is operated to remove the hybrid power drive device installed on the battery rack as a whole and disconnect the quick-plug cable. Then, the explosion-proof lead-acid battery device is installed on the battery rack, and power is provided to the electrical system through the explosion-proof lead-acid battery. When a support transport vehicle is needed to transport the equipment to the ground, the power drive device is replaced again, and the hybrid power drive device is replaced on the battery rack again.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention provides a support transport device for quickly replacing an oil-electric explosion-proof power source. By improving the support transport vehicle body, the support transport vehicle is set to a three-stage design of a front frame, a middle frame and a rear frame. The power unit is placed on the rear frame, and the power unit can be separated. Therefore, the power source can be quickly replaced. The two power sources, an explosion-proof lead-acid battery device and a hybrid power drive device, can realize the switching of the working mode of the large tunnel transportation and the mobile support of the working face. The advantages of a high-power diesel engine and a high-power lead-acid battery are integrated. When driving in the auxiliary transportation large tunnel, the hybrid power drive device provides power to the whole vehicle through the explosion-proof motor, the diesel engine drives the generator to charge the explosion-proof lithium-ion battery, and the lithium-ion battery drives the travel motor to drive the whole vehicle; in the comprehensive mining working face, the lead-acid battery replaces the hybrid power drive device to provide power to the whole vehicle, and drives the travel motor to drive the whole vehicle, thereby avoiding the problem of environmental pollution on the working face. Both power sources are connected to the electric control box through quick-plug cables and connectors, and the plugs used by the two power sources are consistent. The present invention adopts an articulated body, four-wheel drive, and the motor is controlled by a frequency converter, which improves the comprehensive mining withdrawal speed and green withdrawal requirements, improves the environmental conditions of the comprehensive mining working face, and improves labor production efficiency. It is an ideal trackless auxiliary transport vehicle for the installation and withdrawal of equipment on the comprehensive mining working face in underground coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A front view of a whole vehicle of a bracket transport device for quickly replacing an oil-electric explosion-proof power supply provided by an embodiment of the present invention;

[0015] Figure 2 A top view of a whole vehicle of a bracket transport device for quickly replacing an oil-electric explosion-proof power source provided by an embodiment of the present invention;

[0016] In the figure: 1-shovel mechanism; 2-lifting frame; 3-tipping cylinder; 4-lifting cylinder; 5-hydraulic winch; 6-front wheel; 7-front frame; 8-travel motor; 9-cab; 10-steering cylinder; 11-locking rod; 12-oil pump motor; 13-hydraulic oil tank; 14-middle frame; 15-hydraulic pump station; 16-reducer; 17-rear wheel; 18-rear frame; 19-battery lifting cylinder; 20-battery rack; 21-quick-plug cable, connector; 22-hybrid power drive device; 23-explosion-proof lithium-ion battery; 24-explosion-proof motor; 25-explosion-proof diesel engine; 26-explosion-proof lead-acid battery device; 27-electric control box; 28-front drive axle; 29-rear drive axle. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] According to the harsh environment of underground comprehensive mining in coal mines, the large tonnage of equipment and the need for long-distance transportation, the present invention designs a support transportation equipment with a fast replacement of oil-electric power explosion-proof power supply. The equipment is provided with a power source switching system, which can realize the switching of the working mode of large-tunnel transportation and the mobile support of the working face. It adopts an articulated body and four-wheel drive, and the motor is controlled by a frequency converter to improve the comprehensive mining withdrawal speed and the green withdrawal requirements, improve the environmental conditions of the comprehensive mining working face, and improve labor production efficiency. It is a very ideal trackless auxiliary transportation vehicle for the installation and withdrawal of equipment on the comprehensive mining working face in underground coal mines.

[0019] like Figure 1~2 As shown, an embodiment of the present invention provides a support transport device for quickly replacing an oil-electric explosion-proof power source, including a support transport vehicle body, an electrical system, a transmission system, a hydraulic system, an explosion-proof lead-acid battery device 26 and a hybrid power drive device 22; the support transport vehicle body includes a front frame 7, a middle frame 14 and a rear frame 18, a shovel mechanism 1 is arranged in front of the front frame 2, and a front wheel 6 is arranged below; a battery rack 20 is arranged above the rear frame 18, and a rear wheel 17 is arranged below, the battery rack 20 is arranged at the upper rear of the rear frame 18 through a battery lifting cylinder 19, and the battery rack 20 is used to set an explosion-proof lead-acid battery device or a hybrid power drive device; the connection between the front frame 7, the middle frame 14 and the rear frame 18 is an articulated structure, in addition, the front frame 7 and the middle frame 14 are connected by a steering cylinder 10 to achieve steering, and the explosion-proof lead-acid battery device and the hybrid power drive device are used to provide power energy to the electrical system.

[0020] Specifically, the explosion-proof lead-acid battery device 26 weighs 13 tons and can provide DC power and counterweight balance. Figure 2 As shown, in this embodiment, the hybrid drive device 22 includes an explosion-proof lithium-ion battery 23, an explosion-proof motor 24 and a high-power explosion-proof diesel engine 25, the power output end of the explosion-proof diesel engine 25 is connected to the explosion-proof motor 24, and the power output end of the explosion-proof motor 24 is connected to the explosion-proof lithium-ion battery 23. The explosion-proof diesel engine 25 is used to drive the explosion-proof motor 24 to rotate, and then charge the explosion-proof lithium-ion battery 23 to provide long-distance energy for large-scale transportation. Specifically, in this embodiment, the weight and installation size of the explosion-proof lead-acid battery device 26 and the hybrid drive device 22 are the same, so that they can adapt to the accommodation space of the battery rack and ensure interchangeability. When driving in the auxiliary transportation large-scale tunnel, the hybrid drive device 22 provides power to the whole vehicle through the explosion-proof motor, and the explosion-proof lead-acid battery device 26 replaces the hybrid drive device to provide power to the whole vehicle at the fully mechanized working face. Both power sources are connected to the electric control box through the quick-plug cable connector 21, and the plugs used by the two power sources are the same. During heavy-load long-distance transportation, the diesel engine drives the generator to charge the explosion-proof lithium-ion battery, and the lithium-ion battery drives the travel motor to make the whole vehicle move; when adjusting the hydraulic support in the comprehensive mining working face, the lead-acid battery is used to replace the hybrid drive device, and the lead-acid battery drives the travel motor to make the whole vehicle move.

[0021] Specifically, in this embodiment, the electrical system includes: an electric control box 27, an oil pump motor 12, a travel motor 8, an oil pump inverter and a travel inverter, wherein the oil pump inverter and the travel inverter are assembled in the electric control box 27, and are used to control the oil pump motor 12 and the travel motor 8 respectively, and the electric control box 27 is provided with a quick-plug cable connector 21 for connecting an explosion-proof lead-acid battery device or a hybrid drive device. In the embodiment of the present invention, using the inverter to adjust the motor can reduce the overall energy consumption of the vehicle, reduce current impact, protect electrical components, and better control the speed of the motor.

[0022] Specifically, in this embodiment, the transmission system includes: a reducer 16, a front drive axle 28, a rear drive axle 29, a front wheel 6, and a rear wheel 15. The driving reducer 16 is used to drive the front drive axle 28 and the rear drive axle 29 to rotate under the drive of the travel motor 8, and then drive the front wheel 6 and the rear wheel 17 to rotate, thereby driving the vehicle to move.

[0023] Specifically, in this embodiment, the hydraulic system includes a tilting cylinder 3, a lifting cylinder 4, a steering cylinder 10, a battery lifting cylinder 19, a hydraulic winch 5, a hydraulic pump 15 and a hydraulic oil tank 13. The oil pump motor 12 is used to drive the hydraulic pump 15 to provide high-pressure oil for the hydraulic system of the whole vehicle. The battery lifting cylinder 19 is used to lift the battery rack, and the battery rack is used to detachably set the power source to achieve the switching of the power source from the explosion-proof lead-acid battery device 26 to the hybrid drive device 22. Therefore, by using the battery lifting cylinder 19 to lift the battery rack, it can be ensured that the distance between the power source and the ground can be adjusted according to the undulations of the terrain.

[0024] Specifically, in this embodiment, the shovel mechanism 1 is connected to the front frame 7 through the lifting frame 2, and the lifting frame 2 is arranged on the front frame through the lifting cylinder 4 and the rollover cylinder to realize the lifting and rollover of the shovel mechanism 1. The cab 9 is arranged on the rear side of the front frame, the travel motor 8 is arranged at the rear center of the front frame 7, the hydraulic winch 5 is arranged in front of the travel motor, the locking rod 11 is arranged in front of the middle frame, the oil pump motor 12, the hydraulic oil tank 13, the hydraulic pump station 15 and the reducer 16 are all arranged on the middle frame. That is to say, the middle frame 14 is mainly used to set the hydraulic station, and the rear frame 18 is mainly used to place the power source, so that the power source can be set independently.

[0025] A method for using a support transport device with a quick-change oil-electric explosion-proof power supply provided by an embodiment of the present invention is as follows: when transporting equipment downward from a coal mine auxiliary transport wellhead, a hybrid power drive device is installed on a battery rack 20, and power is provided to the electrical system through the hybrid power drive device 22, and the diesel engine drives the electric motor to generate electricity to provide power for the entire vehicle; when the equipment is transported to the comprehensive mining working face, the battery lifting cylinder 19 is operated to remove the hybrid power drive device installed on the battery rack 20 as a whole and disconnect the quick-plug cable, and then the explosion-proof lead-acid battery device is installed on the battery rack 20, and power is provided to the electrical system through the explosion-proof lead-acid battery 26 to avoid environmental pollution of the working face; when the support transport vehicle is needed to transport the equipment to the ground, the power drive device is replaced again, and the hybrid power drive device 22 is replaced on the entire machine again to achieve long-distance and high-slope climbing to overcome the disadvantage of short battery life.

[0026] The present invention provides a support transport device for quickly replacing an oil-electric explosion-proof power source. By improving the support transport vehicle body, the support transport vehicle is set to a three-stage design of a front frame, a middle frame and a rear frame. The power unit is placed on the rear frame, and the power unit can be separated. Therefore, the power source can be quickly replaced. The two power sources, an explosion-proof lead-acid battery device and a hybrid power drive device, can realize the switching of the working mode of the large tunnel transportation and the mobile support of the working face. The advantages of a high-power diesel engine and a high-power lead-acid battery are integrated. When driving in the auxiliary transportation large tunnel, the hybrid power drive device provides power to the whole vehicle through the explosion-proof motor, the diesel engine drives the generator to charge the explosion-proof lithium-ion battery, and the lithium-ion battery drives the travel motor to drive the whole vehicle; in the comprehensive mining working face, the lead-acid battery replaces the hybrid power drive device to provide power to the whole vehicle, and drives the travel motor to drive the whole vehicle, thereby avoiding the problem of environmental pollution on the working face. Both power sources are connected to the electric control box through quick-plug cables and connectors, and the plugs used by the two power sources are consistent. The present invention adopts an articulated body, four-wheel drive, and the motor is controlled by a frequency converter, which improves the comprehensive mining withdrawal speed and green withdrawal requirements, improves the environmental conditions of the comprehensive mining working face, and improves labor production efficiency. It is an ideal trackless auxiliary transport vehicle for the installation and withdrawal of equipment on the comprehensive mining working face in underground coal mines.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bracket transport device for quickly replacing an oil-electric explosion-proof power supply, characterized in that: It includes a support transport vehicle body, an electrical system, a transmission system, a hydraulic system, an explosion-proof lead-acid battery device (26) and a hybrid power drive device (22); The support transport vehicle body comprises a front frame (7), a middle frame (14) and a rear frame (18); a shovel mechanism (1) is arranged in front of the front frame (7) and a front wheel (6) is arranged below; a battery rack (20) is arranged above the rear frame (18) and a rear wheel (17) is arranged below; the battery rack (20) is arranged above the rear frame (18) via a battery lifting cylinder (19); the battery rack (20) is used to set an explosion-proof lead-acid battery device or a hybrid power drive device; the front frame (7), the middle frame (14) and the rear frame (18) are connected by an articulated structure; the front frame (7) and the rear frame (18) are connected by an articulated structure; The frame (18) is also connected via a steering cylinder (10) to achieve steering, the explosion-proof lead-acid battery device and the hybrid power drive device are used to provide power to the electrical system; the hybrid power drive device (22) includes an explosion-proof lithium-ion battery (23), an explosion-proof motor (24) and an explosion-proof diesel engine (25), the power output end of the explosion-proof diesel engine (25) is connected to the explosion-proof motor (24), and the power output end of the explosion-proof motor (24) is connected to the explosion-proof lithium-ion battery (23); the weight and installation dimensions of the hybrid power drive device (22) are the same as those of the explosion-proof lead-acid battery device (26); When transporting equipment downward from the coal mine auxiliary transport wellhead, the hybrid power drive device is installed on the battery rack (20), and the hybrid power drive device (22) is used to provide power to the electrical system; when transporting the equipment to the fully mechanized mining working face for adjusting the hydraulic support, the battery lifting cylinder (19) is operated to remove the hybrid power drive device installed on the battery rack (20) as a whole and disconnect the quick-connect cable, and then the explosion-proof lead-acid battery device is installed on the battery rack (20), and the explosion-proof lead-acid battery device (26) is used to provide power to the electrical system; when the support transport vehicle is required to transport the equipment to the ground, the power drive device is replaced again, and the hybrid power drive device (22) is replaced again on the battery rack (20).

2. The bracket transport device for quickly replacing an oil-electric explosion-proof power source according to claim 1 is characterized in that: The electrical system comprises: an electric control box (27), an oil pump motor (12), a travel motor (8), an oil pump frequency converter and a travel frequency converter, wherein the oil pump frequency converter and the travel frequency converter are mounted in the electric control box (27) and are used to control the oil pump motor (12) and the travel motor (8), respectively; and the electric control box (27) is provided with a quick-plug cable connector (21) for connecting to an explosion-proof lead-acid battery device or a hybrid power drive device.

3. The bracket transport device for quickly replacing an oil-electric explosion-proof power source according to claim 2 is characterized in that: The transmission system comprises: a reducer (16), a front drive axle (28), a rear drive axle (29), a front wheel (6), and a rear wheel (17). The drive reducer (16) is used to drive the front drive axle (28) and the rear drive axle (29) to rotate under the drive of a travel motor (8), thereby driving the vehicle to travel.

4. The bracket transport device for quickly replacing an oil-electric explosion-proof power source according to claim 2 is characterized in that: The hydraulic system comprises a tilting cylinder (3), a lifting cylinder (4), a steering cylinder (10), a battery lifting cylinder (19), a hydraulic winch (5), a hydraulic pump (15) and a hydraulic oil tank (13); the oil pump motor (12) is used to drive the hydraulic pump (15) to provide high-pressure oil for the hydraulic system of the entire vehicle.

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