Special crawler-type stirrer for small and medium-sized mines

Abstract

The utility model discloses a special crawler-type mixer for small and medium-sized mines, which comprises a frame, crawler walking mechanisms are arranged on two sides of the frame, and a mixing mechanism is arranged on the frame. The equipment has the functions of automatic feeding, concrete stirring, short-distance transportation and concrete discharging, solves the problems of on-site stirring and feeding space, and meets the functions of underground on-site stirring and continuous wet spraying concrete production.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a crawler mixer special for small and medium-sized mines. Background Art

[0002] At present, in the shotcrete support of underground tunnels and deep shaft tunnels supported by anchor spraying in mines and coal mines, the commercial concrete on the ground cannot be transported to the on-site wet spraying operation surface in time due to the limitations of special transportation conditions underground. Since there are problems such as space limitations in setting up mixing stations underground, the sand, stone and cement materials for on-site wet spraying can only be transported to the operation surface by rail mine car shafts or inclined shafts, or by wheeled mining trucks through ramps and shovel loaders. There is no on-site mixing equipment that is suitable for use in small and medium-sized tunnel mines and coal mines and is easy to move, resulting in generally low construction efficiency and is not conducive to the mechanized application of wet spraying concrete.

[0003] To this end, it is particularly important to develop a self-propelled mixer that is suitable for use in small and medium-sized tunnel mines and coal mines and is easy to transport, so as to realize the on-site preparation and transportation of underground concrete, ensure the smooth process of wet spraying technology, and improve the efficiency of underground construction. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a crawler type mixer special for small and medium-sized mines.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] The crawler mixer specially used for small and medium-sized mines comprises a frame (1), crawler walking mechanisms (2) are provided on both sides of the frame (1), and a mixing mechanism (6) is provided on the frame (1).

[0007] Preferably, a motor (3) and a triple oil pump group (4) are provided in the vehicle frame (1), and an explosion-proof control box (5), an explosion-proof cable drum (7), a radiator (8) and a plurality of control valves are also provided on the vehicle frame (1); the explosion-proof control box (5) is connected to the motor (3), the power output end of the motor (3) is connected to the triple oil pump group (4), the triple oil pump group (4) is connected to a plurality of control valves via an oil circuit, and the plurality of control valves are respectively connected to the crawler walking mechanism (2), the stirring mechanism (6), the explosion-proof cable drum (7) and the radiator (8).

[0008] Preferably, the triple oil pump group (4) comprises a main oil pump and a double gear pump, the control valve comprises a triple manual hydraulic proportional valve, a mixing drum control valve, a radiator control valve and a travel high and low speed control valve, the main oil pump is connected to the triple manual hydraulic proportional valve via an oil circuit, the triple manual hydraulic proportional valve is respectively connected to the crawler walking mechanism (2) and the explosion-proof cable drum (7); the double gear pump is respectively connected to the mixing drum control valve, the radiator control valve and the travel high and low speed control valve via an oil circuit, the mixing drum control valve is connected to the mixing mechanism (6), the radiator control valve is connected to the radiator (8), and the travel high and low speed control valve is connected to the crawler walking mechanism (2).

[0009] Preferably, the main oil pump is a plunger variable displacement pump.

[0010] Preferably, the double gear pump consists of a gear pump with a displacement of 40rpm and a gear pump with a displacement of 14rpm. The gear pump with a displacement of 40rpm is connected to the mixing drum control valve through an oil circuit, and the gear pump with a displacement of 14rpm is respectively connected to the radiator control valve and the high and low speed control valves through the oil circuit.

[0011] Preferably, the stirring mechanism (6) comprises a stirring drum (9), the stirring drum (9) being detachably mounted on a frame (1), the frame (1) being provided with a rotating assembly (10), the front end of the stirring drum (1) being an open end (11), the rear end of the stirring drum (1) being connected to a driving end of the rotating assembly (10), and the stirring drum control valve being connected to the rotating assembly (10).

[0012] Preferably, the rotating assembly comprises an oil motor, a control end of the oil motor is connected to a control valve of the mixing drum, an output end of the oil motor is connected to a reducer, and an output end of the reducer is connected to the rear end of the mixing drum (1).

[0013] Preferably, a feed trough (12) is provided at the upper portion of the open end (11), and a discharge hopper (13) is provided at the lower portion of the open end (11).

[0014] Preferably, support legs (14) are respectively provided on both sides of the frame (1).

[0015] Preferably, the front and rear ends of the vehicle frame (1) are also provided with a track running mechanism, the track running mechanism comprising a front axle system (15) and a rear axle system (16), the front axle system (15) being connected to the vehicle frame (1) via an axle steering wheel mechanism (17).

[0016] The utility model is further described below:

[0017] The crawler mixer for small and medium-sized mines of the utility model is mainly used in the mixer system matched with the crawler wet spraying machine in the underground mine. The mixer sucks the sand and gravel and cement into the mixing mechanism of the mixer, and the mixing drum of the mixing mechanism rotates at a high speed to mix the cement and sand and gravel into concrete, thereby completing the production and preparation of wet spraying concrete in a narrow space.

[0018] The crawler-type travel mechanism on both sides of the frame can realize short-distance temporary movement, play the role of short-distance material transportation, and realize the production and transportation function of supporting concrete materials with the concrete wet spraying machine. The compact design of setting the motor and triple oil pump group in the middle of the frame reduces the size of the whole machine. The triple oil pump group consists of 3 oil pumps. The main oil pump is a plunger variable pump, which mainly controls the left and right travel motors of the crawler travel mechanism and the cable mixing drum; the double gear pump, among which: the displacement 40rpm gear pump controls the forward and reverse rotation of the mixing drum, and the displacement 14rpm gear pump controls the radiator and the high and low gear switching of the travel speed. The hydraulic system of the crawler mixer adopts full hydraulic control. The hydraulic oil enters the triple manual hydraulic proportional valve from the oil pump port of the plunger variable pump. The triple manual hydraulic proportional valve is equipped with valve plate 1, valve plate 2, and valve plate 3. Among them, valve plate 1 controls the left travel motor, valve plate 2 controls the right travel motor, and valve plate 3 controls the cable drum reel hydraulic motor.

[0019] During the driving process of the mixer: the handles of control valve plate 1 and valve plate 2 are pushed forward at the same time, the left and right travel motors move forward at the same time, and the equipment moves forward; the handles of control valve plate 1 and valve plate 2 are pushed backward at the same time, the left and right travel motors move backward at the same time, and the equipment moves backward; the handle of control valve plate 1 is pushed forward, the handle of valve plate 2 is pushed forward slightly or does not move, and the equipment turns right forward; the handle of control valve plate 2 is pushed forward, the handle of valve plate 1 is pushed forward slightly or does not move, and the equipment turns left forward; the handle of control valve plate 1 is pushed backward, the handle of valve plate 2 is pushed backward slightly or does not move, and the equipment turns left backward; the handle of control valve plate 2 is pushed backward, the handle of valve plate 1 is pushed backward slightly or does not move, and the equipment turns right backward; the handle of control valve plate 1 is pushed forward, the handle of valve plate 2 is pushed backward, and the equipment turns right on the spot; the handle of control valve plate 1 is pushed backward, the handle of valve plate 2 is pushed forward, and the equipment turns left on the spot.

[0020] In the duplex gear pump: the 40rpm gear pump supplies oil to the mixing drum control valve, and the forward and reverse direction and rotation speed of the mixing drum oil motor are controlled by operating the control valve handle; the 14rpm gear pump supplies oil to the radiator oil motor, and the radiator is opened by operating the radiator control valve. The T port of the radiator oil manual control valve is connected to the P port of the travel high and low speed control valve. The travel high and low speed control valve opens the manual control valve handle, and the P port oil enters the B port to push the control valve for switching the high and low speeds of the left and right travel motors.

[0021] The mixing mechanism of this crawler mixer is an assembled integral frame system, which is easy to disassemble and assemble, and is convenient for the transportation of the whole machine in the shaft. The length, width and height dimensions of the crawler mixer in the transportation state, that is, the length, width and height dimensions of the whole machine in normal working state are: length 4800mm, height 1910mm, width 1200mm. In the transportation state of the crawler mixer, the loading and unloading trough part and the mixing drum are removed, and the length, width and height dimensions are: length 3935mm, height 1635mm, width 1200mm.

[0022] The mixing drum in the mixing mechanism is driven by a rotating assembly to achieve forward and reverse rotation of the mixing drum. The working principle of the rotating assembly is as follows: the motor drives the oil pump, the oil pump drives the mixing oil motor and the reducer to control the forward and reverse rotation, mixing and unloading functions of the mixing drum.

[0023] The crawler mixer for small and medium-sized mines is equipped with crawler travel mechanism and track travel mechanism. During the driving process, it can adapt to the underground track and trackless road conditions through the upper and lower rails. The crawler and track travel mechanisms can switch the travel system between track and non-track roads.

[0024] The track travel mechanism is a track-type wheel-axle system with front and rear axles. After the mixing is completed, it is towed to the construction site by a battery car. Considering the long wheelbase of the mixer equipment and the turning radius of the equipment on the track, an axle steering wheel mechanism with a steering function is set on the front axle in the driving direction. When the turning radius on the track is relatively small, the axle system has a steering axle control to facilitate the steering axle steering and prevent the track from being worn by force. When the crawler mixer switches the travel mechanism between the upper and lower tracks, two manual jacks can be configured. The jacks are connected by pins. Put the pins on when using them, and install the wheel after the equipment is lifted up. After installation, the pin can be removed. For the full track working conditions in the mine, you can consider using a simple track mixer with only a track travel mechanism.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] 1. The crawler mixer equipment for small and medium-sized mines of this utility model is flexible, light, miniaturized, and compact in structure. In normal working state, the whole machine has a length of 4800mm, a height of 1910mm, and a width of 1200mm; in the cage transportation state, the whole machine frame structure is designed according to the assembled and detachable design, and the whole machine has a height of 1635mm, a length of 3935mm, and a width of 1200mm. The simple disassembly and assembly installation and connection method facilitates the transportation of the cage up and down.

[0027] 2. Full hydraulic control design is convenient to meet the explosion-proof design requirements of underground mines. The hydraulic motor drives the radiator, the manual control valve controls the driving direction, the hydraulic motor drives the cable drum, and the chassis drives the high and low speed manual control valve. The design is simple, easy to operate, and economical.

[0028] 4. The crawler and track-type traveling mechanisms can adapt to underground track-type and trackless road conditions through the upper and lower rails during driving, and the traveling mechanism can be switched between track and non-track roads.

[0029] In short, the utility model can solve the problem of complete equipment application of wet shotcrete support technology in mine tunnels with a length of 2.5m to 6.5m. It mainly solves the on-site mixing of wet shotcrete equipment underground to ensure smooth wet shotcrete process. It effectively solves the preparation and transportation of underground concrete, greatly improves the efficiency of underground construction, and promotes the application of wet shotcrete technology in small and medium-section tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 It is the front view of the utility model;

[0032] Figure 3 It is a right view of the utility model;

[0033] Figure 4 It is a structural schematic diagram of the frame of the utility model.

[0034] In the figure: 1. frame; 2. crawler walking mechanism; 3. motor; 4. triple oil pump group; 5. explosion-proof control box; 6. stirring mechanism; 7. explosion-proof cable reel; 8. radiator; 9. stirring drum; 10. rotating assembly; 11. open end; 12. feed trough; 13. unloading hopper; 14. supporting legs; 15. front axle system; 16. rear axle system; 17. axle steering wheel mechanism. DETAILED DESCRIPTION Example

[0035] See also Figures 1 to 4 The crawler mixer specially used for small and medium-sized mines comprises a frame 1 , crawler walking mechanisms 2 are arranged on both sides of the frame 1 , and a mixing mechanism 6 is arranged on the frame 1 .

[0036] Among them, a motor 3 and a triple oil pump group 4 are provided in the frame 1, and an explosion-proof control box 5, an explosion-proof cable reel 7, a radiator 8 and multiple control valves are also provided on the frame 1; the explosion-proof control box 5 is connected to the motor 3, and the power output end of the motor 3 is connected to the triple oil pump group 4, and the triple oil pump group 4 is connected to multiple control valves through an oil circuit, and the multiple control valves are respectively connected to the crawler walking mechanism 2, the stirring mechanism 6, the explosion-proof cable reel 7 and the radiator 8.

[0037] The triple oil pump group 4 includes a main oil pump and a double gear pump. The control valve includes a triple manual hydraulic proportional valve, a mixing drum control valve, a radiator control valve and a travel high and low speed control valve. The main oil pump is connected to the triple manual hydraulic proportional valve through an oil circuit. The triple manual hydraulic proportional valve is connected to the crawler walking mechanism 2 and the explosion-proof cable drum 7 respectively. The double gear pump is connected to the mixing drum control valve, the radiator control valve and the travel high and low speed control valve through an oil circuit respectively. The mixing drum control valve is connected to the mixing mechanism 6, the radiator control valve is connected to the radiator 8, and the travel high and low speed control valve is connected to the crawler walking mechanism 2. The main oil pump is a plunger variable pump. The double gear pump consists of a gear pump with a displacement of 40rpm and a gear pump with a displacement of 14rpm. The gear pump with a displacement of 40rpm is connected to the mixing drum control valve through an oil circuit, and the gear pump with a displacement of 14rpm is connected to the radiator control valve and the travel high and low speed control valve through an oil circuit respectively. The mixing mechanism 6 includes a mixing drum 9, which is detachably mounted on the frame 1. The frame 1 is provided with a rotating assembly 10. The front end of the mixing drum 1 is an open end 11, and the rear end of the mixing drum 1 is connected to the driving end of the rotating assembly 10. The mixing drum control valve is connected to the rotating assembly 10. The rotating assembly includes an oil motor, the control end of the oil motor is connected to the mixing drum control valve, the output end of the oil motor is connected to a reducer, and the output end of the reducer is connected to the rear end of the mixing drum 1. A feed trough 12 is provided at the upper part of the open end 11, and a discharge hopper 13 is provided at the lower part of the open end 11. Support legs 14 are provided on both sides of the frame 1. The front and rear ends of the frame 1 are also provided with a track travel mechanism, which includes a front axle system 15 and a rear axle system 16. The front axle system 15 is connected to the frame 1 through an axle steering wheel mechanism 17.

Claims

1. A crawler mixer specially used for small and medium-sized mines, characterized in that: The crawler mixer for small and medium-sized mines comprises a frame (1), crawler walking mechanisms (2) are provided on both sides of the frame (1), and a stirring mechanism (6) is provided on the frame (1); the stirring mechanism (6) comprises a stirring drum (9), and the stirring drum (9) is detachably mounted on the frame (1); a rotating assembly (10) is provided on the frame (1), the front end of the stirring drum (9) is an open end (11), the rear end of the stirring drum (9) is connected to the driving end of the rotating assembly (10), and the stirring drum control valve is connected to the rotating assembly (10); the rotating assembly comprises an oil motor, the control end of the oil motor is connected to the stirring drum control valve, the output end of the oil motor is connected to a reducer, and the output end of the reducer is connected to the rear end of the stirring drum (9); the front and rear ends of the frame (1) are also provided with track walking mechanisms, and the track walking mechanism comprises a front wheel axle system (15) and a rear wheel axle system (16), and the front wheel axle system (15) is connected to the frame (1) through an axle steering wheel mechanism (17).

2. The crawler mixer for small and medium-sized mines according to claim 1, characterized in that: The frame (1) is provided with a motor (3) and a triple oil pump group (4), and the frame (1) is also provided with an explosion-proof control box (5), an explosion-proof cable drum (7), a radiator (8) and a plurality of control valves; the explosion-proof control box (5) is connected to the motor (3), the power output end of the motor (3) is connected to the triple oil pump group (4), the triple oil pump group (4) is connected to a plurality of control valves via an oil circuit, and the plurality of control valves are respectively connected to a crawler walking mechanism (2), a stirring mechanism (6), an explosion-proof cable drum (7) and a radiator (8).

3. The crawler mixer for small and medium-sized mines as claimed in claim 2, characterized in that: The triple oil pump group (4) comprises a main oil pump and a double gear pump; the control valve comprises a triple manual hydraulic proportional valve, a mixing drum control valve, a radiator control valve and a travel high and low speed control valve; the main oil pump is connected to the triple manual hydraulic proportional valve via an oil circuit; the triple manual hydraulic proportional valve is respectively connected to the crawler walking mechanism (2) and the explosion-proof cable drum (7); the double gear pump is respectively connected to the mixing drum control valve, the radiator control valve and the travel high and low speed control valve via an oil circuit; the mixing drum control valve is connected to the mixing mechanism (6); the radiator control valve is connected to the radiator (8); and the travel high and low speed control valve is connected to the crawler walking mechanism (2).

4. The crawler mixer for small and medium-sized mines as claimed in claim 3, characterized in that: The main oil pump is a plunger variable displacement pump.

5. The crawler mixer for small and medium-sized mines as claimed in claim 3, characterized in that: The double gear pump consists of a gear pump with a displacement of 40 rpm and a gear pump with a displacement of 14 rpm. The gear pump with a displacement of 40 rpm is connected to the mixing drum control valve through an oil circuit, and the gear pump with a displacement of 14 rpm is connected to the radiator control valve and the high and low speed control valves of the travel through oil circuits.

6. The crawler mixer for small and medium-sized mines according to claim 1, characterized in that: A feed trough (12) is provided at the upper portion of the open end (11), and a discharge hopper (13) is provided at the lower portion of the open end (11).

7. The crawler mixer for small and medium-sized mines according to claim 1, characterized in that: Support legs (14) are respectively provided on both sides of the vehicle frame (1).

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