Air powered monorail crane

Abstract

The pneumatic monorail crane disclosed in the present invention comprises a box body, wherein a driving device, an energy storage device, a braking device and a supporting frame are arranged in the middle of the box body. The pneumatic monorail crane described in the present invention adopts self-contained compressed air that can work independently from the air duct as a power source. Changing the fixed air source compressed air to self-contained air can greatly improve the flexibility of the monorail crane operation, reduce the labor intensity of workers, and increase the working distance. It is equipped with a two-stage expansion plunger motor, which is twice as efficient as an ordinary pneumatic motor. The entire working process is free of any sparks and high temperatures, and has excellent explosion-proof characteristics. The driving brake device is used for speed control during the normal operation of the monorail crane. The speed of the monorail crane can be adjusted by adjusting the corresponding buttons on the control panel or remote control according to the driving environment or the slope size. The pneumatic monorail crane is used in conjunction with a supercharging system, and the supercharging system is fully pneumatically driven, which is safe and reliable for underground use.

Description

Technical Field

[0001] The invention relates to the field of monorail cranes, in particular to an aerodynamic monorail crane. Background Art

[0002] At present, my country's coal modernization construction is developing rapidly. The scale of mine construction and production is getting larger and larger, and the corresponding service systems and equipment are becoming more and more automated and mechanized. The mechanization levels of coal mining and tunneling in the country have reached 78.5% and 60.4% respectively. However, the auxiliary transportation equipment used to transport mine equipment, materials and personnel is relatively backward. Monorail cranes are an important part of auxiliary transportation in coal mines, especially the transportation problem of the last kilometer of coal mines. With the increase in the proportion and workload of auxiliary transportation, the efficient use of mining equipment will be seriously restricted in the future. How to develop the monorail crane system to better adapt to the modernization of coal mines has become an important issue to be solved in the coal production link.

[0003] At present, monorail cranes used in coal mines can be divided into explosion-proof diesel engine monorail cranes, explosion-proof battery monorail cranes, and fixed air source compressed air monorail cranes according to different power units. Among them, although the engine of the explosion-proof diesel engine monorail crane has many protective measures, which to a certain extent meets the requirements of coal mines for explosion-proof performance, there are still certain safety hazards and the exhaust gas pollutes the well environment and endangers the physical and mental health of employees; the explosion-proof battery monorail crane has limited endurance, and electrical devices such as batteries and starters require explosion-proof treatment. The battery itself has a short life, and waste batteries cannot be recycled. Improper treatment causes great pollution to the environment; the fixed air source compressed air monorail crane must drag the bulky air duct to operate, which is inconvenient to operate, increases the labor intensity of workers, and affects work efficiency. In addition, due to the length limit of the air duct, the working distance is short. For this reason, we propose an air-powered monorail crane. Summary of the invention

[0004] The main purpose of the present invention is to provide an aerodynamic monorail crane, which can effectively solve the problems in the background technology.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] An air powered monorail crane comprises a box and an energy storage device, characterized in that a driving device and a support frame are arranged in the middle of the box, the support frame is arranged around the driving device, a control panel is arranged on the front end outer surface of the box, a carrying trolley, a driving wheel and a braking device are arranged on the upper end outer surface of the box, the carrying trolley is arranged on both sides of the driving wheel, the braking device is arranged on the side of one of the carrying trolleys away from the driving wheel, lifting devices are arranged on the outer surfaces of both ends of the energy storage device, and the box is arranged on one side of the energy storage device.

[0007] Preferably, the driving device includes an air engine, a pneumatic brake, a centrifugal speed limiter, a gearbox, an output shaft and a gear actuator, the pneumatic brake is located on an outer surface of one side of the air engine, the two sides of the centrifugal speed limiter are the air engine and the gearbox respectively, the output shaft is located on the upper outer surface of the gearbox, and the gear actuator is located on the lower outer surface of the gearbox.

[0008] Preferably, the braking device includes a braking bracket, a first load-bearing wheel, a tensioning spring and a separation cylinder, wherein the first load-bearing wheel, the tensioning spring and the separation cylinder are all located in the middle of the braking bracket, the first load-bearing wheel is located above the tensioning spring, and the tensioning spring is located above the separation cylinder.

[0009] Preferably, the energy storage device includes a carbon fiber composite wrapped gas cylinder, a nylon fixing block and a gas cylinder strap, the nylon fixing block and the gas cylinder strap are both located on the outer wall of the carbon fiber composite wrapped gas cylinder, and the nylon fixing block is located on both sides of the gas cylinder strap.

[0010] Preferably, the lifting device is mainly composed of a pneumatic hoist, which mainly includes a second load-bearing wheel, a center frame, a brake, a reducer, an air motor, a locking mechanism and a main control valve. The center frame is located below the second load-bearing wheel, the brake is located on the lower outer surface of the center frame, the reducer is located on one side outer surface of the brake, the air motor is located on one side outer surface of the reducer, the locking mechanism is located on the lower outer surface of the air motor, and the main control valve is located on one side outer surface of the air motor.

[0011] Preferably, a fixing groove is provided between the carbon fiber composite wrapped gas cylinder and the nylon fixing block, and the outer wall of the carbon fiber composite wrapped gas cylinder is detachably connected to the outer surface of one end of the nylon fixing block through the fixing groove, and a buckle is provided between the carbon fiber composite wrapped gas cylinder and the gas cylinder strap, and the outer wall of the carbon fiber composite wrapped gas cylinder is detachably connected to the outer surface of one end of the gas cylinder strap through the buckle.

[0012] Preferably, a connecting shaft is provided between the brake bracket and the first load-bearing wheel, and the inner surfaces on both sides of the brake bracket are detachably connected to the outer surfaces on both sides of the first load-bearing wheel through the connecting shaft.

[0013] Preferably, a hexagonal bolt is provided between the air motor and the pneumatic brake, and an outer surface of one side of the air motor is detachably connected to an outer surface of one side of the pneumatic brake via the hexagonal bolt.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the aerodynamic monorail crane:

[0015] The self-contained compressed air that can be separated from the air duct and work independently is used as the power source. Changing the fixed air source compressed air to self-contained air can greatly improve the flexibility of the monorail crane's operation, reduce the labor intensity of workers, improve work efficiency, and increase the working distance. It is equipped with a two-stage expansion plunger motor, which completely relies on the expansion of compressed air in the motor to achieve power output. The efficiency is twice that of ordinary pneumatic motors. There is no spark or high temperature in the entire working process, and it has excellent explosion-proof characteristics. The service brake device is used for speed control during normal operation of the monorail crane. The speed of the monorail crane can be adjusted by adjusting the corresponding buttons on the control panel or remote control according to the driving environment or the size of the slope. The operation is convenient. The pneumatic monorail crane is used in conjunction with the booster system. The booster system is fully pneumatically driven, which is safe and reliable for underground use and is conducive to people's use.

[0016] The entire aerodynamic monorail crane has a simple structure, is easy to operate, and has better performance than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the aerodynamic monorail crane of the present invention;

[0018] Figure 2 It is a structural diagram of the aerodynamic monorail crane box 1 of the present invention;

[0019] Figure 3 It is a structural diagram of the aerodynamic monorail crane driving device 2 of the present invention;

[0020] Figure 4 It is a structural diagram of the aerodynamic monorail crane brake device 6 of the present invention;

[0021] Figure 5 It is a structural diagram of the aerodynamic monorail crane energy storage device 4 of the present invention;

[0022] Figure 6 It is a structural diagram of the aerodynamic monorail crane lifting device 9 of the present invention.

[0023] In the figure: 1. box; 2. driving device; 21. air engine; 22. pneumatic brake; 23. centrifugal speed limiter; 24. gearbox; 25. output shaft; 26. gear actuator; 3. load-bearing trolley; 4. energy storage device; 41. carbon fiber composite wrapped gas cylinder; 42. nylon fixing block; 43. gas cylinder strap; 5. control panel; 6. braking device; 61. braking bracket; 62. first load-bearing wheel; 63. tension spring; 64. separation cylinder; 7. support frame; 8. driving wheel; 9. lifting device; 91. second load-bearing wheel; 92. center frame; 93. brake; 94. reducer; 95. air motor; 96. interlocking mechanism; 97. main control valve. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1-6 As shown, the aerodynamic monorail crane includes a box body 1 and an energy storage device 4, which is characterized in that a driving device 2 and a support frame 7 are arranged in the middle of the box body 1, and the support frame 7 is located around the driving device 2. A control panel 5 is arranged on the front end outer surface of the box body 1, and a load-bearing trolley 3, a driving wheel 8 and a braking device 6 are arranged on the upper end outer surface of the box body 1. The load-bearing trolley 3 is located on both sides of the driving wheel 8, and the braking device 6 is located on the side of one of the load-bearing trolleys 3 away from the driving wheel 8. Lifting devices 9 are arranged on the outer surfaces of both ends of the energy storage device 4, and the box body 1 is located on one side of the energy storage device 4.

[0028] The driving device 2 includes an air engine 21, a pneumatic brake 22, a centrifugal speed limiter 23, a gearbox 24, an output shaft 25 and a gear actuator 26. The pneumatic brake 22 is located on one side of the outer surface of the air engine 21. The two sides of the centrifugal speed limiter 23 are the air engine 21 and the gearbox 24 respectively. The output shaft 25 is located on the upper end outer surface of the gearbox 24. The gear actuator 26 is located on the lower end outer surface of the gearbox 24. The driving device 2 provides power for the whole vehicle. The air engine 21 is mainly composed of a two-stage expansion plunger motor. Compared with the traditional piston pneumatic motor, the two-stage expansion plunger motor Under the conditions of equal pressure and equal flow, it can output greater torque and power, and the efficiency is nearly doubled. The two-stage expansion plunger motor relies entirely on gas expansion to work. There is no chemical fuel explosion in the entire operation process, and no ignition device is required. The generation of high temperature and sparks is eliminated in principle and structure. It is the preferred power output equipment for high-gas mines. It consists of a two-stage expansion plunger motor and a speed change device, and an integrated service brake device. The service brake device is used for speed control during normal operation of the monorail crane. The speed of the monorail crane can be adjusted by adjusting the corresponding buttons on the control panel or remote control according to the driving environment or slope size.

[0029] Among them, the braking device 6 includes a braking bracket 61, a first load-bearing wheel 62, a tensioning spring 63 and a separation cylinder 64. The first load-bearing wheel 62, the tensioning spring 63 and the separation cylinder 64 are all located in the middle of the braking bracket 61, the first load-bearing wheel 62 is located above the tensioning spring 63, and the tensioning spring 63 is located above the separation cylinder 64. The braking device 6 is the parking brake system of the whole vehicle. The device is a failure-type braking protection device, which can provide a braking force of 25kN. It is normally in a locked state. Only when the air with a pressure of 0.5MPa is passed into the double-force cylinder to compress the brake spring, the brake shoe can be opened. Therefore, when the inflation pipeline fails or an accident occurs, the device can automatically brake to ensure the safe operation of the equipment. The material used for the brake shoe is a copper-based alloy, which is flame retardant during braking and will not detonate external explosive substances.

[0030] Among them, the energy storage device 4 includes a carbon fiber composite wrapped gas cylinder 41, a nylon fixing block 42 and a gas cylinder strap 43. The nylon fixing block 42 and the gas cylinder strap 43 are both located on the outer wall of the carbon fiber composite wrapped gas cylinder 41, and the nylon fixing block 42 is located on both sides of the gas cylinder strap 43. The energy storage device 4 is the energy source of the entire vehicle. In order to adapt to the complex environment underground in a coal mine, the carbon fiber composite wrapped gas cylinder 41 is installed in a high-rigidity cage-type box body 1, which is supported by a high-strength steel beam as a support frame 7 and covered with a steel plate. The carbon fiber composite wrapped gas cylinder 41 is connected to the box body 1 through the nylon fixing block 42 and the gas cylinder strap 43, which has a good buffering effect, thereby avoiding the impact of the carbon fiber composite wrapped gas cylinder 41 when the box body 1 is subjected to impact.

[0031] Among them, the lifting device 9 is mainly composed of a pneumatic hoist, which mainly includes a second load-bearing wheel 91, a center frame 92, a brake 93, a reducer 94, an air motor 95, a locking mechanism 96 and a main control valve 97. The center frame 92 is located below the second load-bearing wheel 91, the brake 93 is located on the lower end outer surface of the center frame 92, the reducer 94 is located on one side outer surface of the brake 93, the air motor 95 is located on one side outer surface of the reducer 94, the locking mechanism 96 is located on the lower end outer surface of the air motor 95, and the main control valve 97 is located on one side outer surface of the air motor 95. The lifting device 9 generates no electric sparks during operation, which completely solves the explosion-proof problem of the lifting equipment and is suitable for operation in high-risk environments under mines. The design of gas cut-off protection avoids sudden drop of goods caused by sudden interruption of the gas source, thereby improving safety and reliability during operation.

[0032] Among them, a fixing groove is arranged between the carbon fiber composite wrapped gas cylinder 41 and the nylon fixing block 42, and the outer wall of the carbon fiber composite wrapped gas cylinder 41 is detachably connected to the outer surface of one end of the nylon fixing block 42 through the fixing groove, and a buckle is arranged between the carbon fiber composite wrapped gas cylinder 41 and the gas cylinder strap 43, and the outer wall of the carbon fiber composite wrapped gas cylinder 41 is detachably connected to the outer surface of one end of the gas cylinder strap 43 through the buckle.

[0033] A connecting shaft is provided between the brake bracket 61 and the first load-bearing wheel 62 , and the inner surfaces on both sides of the brake bracket 61 are detachably connected to the outer surfaces on both sides of the first load-bearing wheel 62 through the connecting shaft.

[0034] A hexagonal bolt is provided between the air motor 21 and the pneumatic brake 22 , and an outer surface of one side of the air motor 21 is detachably connected to an outer surface of one side of the pneumatic brake 22 through the hexagonal bolt.

[0035] It should be noted that the present invention is an air-powered monorail crane. Compared with the existing fixed air source compressed air monorail crane, the present invention adopts self-contained compressed air that can be separated from the air duct and work independently as the power source. Changing the fixed air source compressed air to self-contained air can greatly improve the flexibility of the monorail crane's operation, reduce the labor intensity of workers, improve work efficiency, and increase the working distance. It is equipped with a two-stage expansion plunger motor, which completely relies on the expansion of compressed air in the motor to achieve power output. The efficiency is twice that of an ordinary pneumatic motor. The entire working process is free of any sparks and high temperatures, and has excellent explosion-proof characteristics. The service brake device is used for speed control during normal operation of the monorail crane. The speed of the monorail crane can be adjusted by adjusting the corresponding buttons on the control panel or remote control according to the driving environment or the slope size. The operation is convenient. The air-powered monorail crane is used in conjunction with a boosting system. The boosting system is fully pneumatically driven, safe and reliable for underground use, and is conducive to people's use.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An aerodynamic monorail crane, comprising a box (1) and an energy storage device (4), characterized in that: A driving device (2) and a support frame (7) are arranged in the middle of the box (1), the support frame (7) is located around the driving device (2), a control panel (5) is arranged on the front end outer surface of the box (1), a carrying trolley (3), a driving wheel (8) and a braking device (6) are arranged on the upper end outer surface of the box (1), the carrying trolley (3) is located on both sides of the driving wheel (8), the braking device (6) is located on the side of one of the carrying trolleys (3) away from the driving wheel (8), and a lifting device (9) is arranged on the outer surfaces of both ends of the energy storage device (4), and the box (1) is located on one side of the energy storage device (4); The driving device (2) comprises an air engine (21), a pneumatic brake (22), a centrifugal speed limiter (23), a gearbox (24), an output shaft (25) and a gear actuator (26); the pneumatic brake (22) is located on an outer surface of one side of the air engine (21); the air engine (21) and the gearbox (24) are located on both sides of the centrifugal speed limiter (23); the output shaft (25) is located on an outer surface of an upper end of the gearbox (24); the gear actuator (26) is located on an outer surface of a lower end of the gearbox (24); and the air engine (21) is mainly composed of a two-stage expansion piston motor; The braking device (6) comprises a braking bracket (61), a first load-bearing wheel (62), a tensioning spring (63) and a separation cylinder (64); the first load-bearing wheel (62), the tensioning spring (63) and the separation cylinder (64) are all located in the middle of the braking bracket (61); the first load-bearing wheel (62) is located above the tensioning spring (63); and the tensioning spring (63) is located above the separation cylinder (64); The energy storage device (4) comprises a carbon fiber composite wrapped gas cylinder (41), a nylon fixing block (42) and a gas cylinder strap (43), wherein the nylon fixing block (42) and the gas cylinder strap (43) are both located on the outer wall of the carbon fiber composite wrapped gas cylinder (41), and the nylon fixing block (42) is located on both sides of the gas cylinder strap (43); A fixing groove is provided between the carbon fiber composite wrapped gas cylinder (41) and the nylon fixing block (42); the outer wall of the carbon fiber composite wrapped gas cylinder (41) is detachably connected to the outer surface of one end of the nylon fixing block (42) via the fixing groove; a buckle is provided between the carbon fiber composite wrapped gas cylinder (41) and the gas cylinder strap (43); the outer wall of the carbon fiber composite wrapped gas cylinder (41) is detachably connected to the outer surface of one end of the gas cylinder strap (43) via the buckle.

2. The aerodynamic monorail crane according to claim 1, characterized in that: The lifting device (9) is mainly composed of a pneumatic hoist, which mainly includes a second load-bearing wheel (91), a center frame (92), a brake (93), a reducer (94), an air motor (95), a locking mechanism (96) and a main control valve (97). The center frame (92) is located below the second load-bearing wheel (91), the brake (93) is located on the lower outer surface of the center frame (92), the reducer (94) is located on one side outer surface of the brake (93), the air motor (95) is located on one side outer surface of the reducer (94), the locking mechanism (96) is located on the lower outer surface of the air motor (95), and the main control valve (97) is located on one side outer surface of the air motor (95).

3. The aerodynamic monorail crane according to claim 1, characterized in that: A connecting shaft is provided between the brake bracket (61) and the first load-bearing wheel (62), and the inner surfaces on both sides of the brake bracket (61) are detachably connected to the outer surfaces on both sides of the first load-bearing wheel (62) via the connecting shaft.

4. The aerodynamic monorail crane according to claim 1, characterized in that: A hexagonal bolt is provided between the air motor (21) and the pneumatic brake (22); an outer surface of one side of the air motor (21) is detachably connected to an outer surface of one side of the pneumatic brake (22) via the hexagonal bolt.

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