Hoisting device for installation and removal of underground coal mining working face of coal mine

Abstract

The utility model belongs to the technical field of lifting devices, and particularly relates to a lifting device for mounting and removing an underground coal mining working face of a coal mine, which comprises an electric crawler belt, a platform mounted at the top of the electric crawler belt, a second telescopic cavity mounted at the top of the platform, and a second hydraulic telescopic rod mounted in an inner cavity of the second telescopic cavity. The top end of a piston rod of the second hydraulic telescopic rod is connected with a telescopic column, the top of the telescopic column is provided with a steering mechanism, the top of the steering mechanism is provided with an n-shaped frame, the top of the n-shaped frame is provided with a mounting cover, the side face of the mounting cover is provided with a second gear motor, and an output shaft of the second gear motor is connected with a gear. Compared with a rotating arm type lifting appliance and a portal frame type lifting appliance, the lifting appliance has high practicability and applicability to underground narrow space, and equipment can be conveniently and directly transferred to a transport vehicle from a lifting position or transferred to an installation position from the transport vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting devices, in particular to a lifting device used for installation and removal of coal mining working faces in underground coal mines. Background Art

[0002] Comprehensive coal mining face, short for comprehensive mechanized coal mining face, is a comprehensive production site that integrates coal breaking, coal loading, coal transportation, frame shifting, push conveyor and other processes to achieve mechanical automation. The main equipment used in this face includes double-drum coal mining machine, flexible scraper conveyor, hydraulic support, transfer machine, retractable belt conveyor, emulsification pump station and power supply equipment.

[0003] With the recommendation of coal mining working face, the hydraulic supports and equipment installed in the tunnel also need to be transferred. During the transfer and disassembly process, lifting equipment is needed to lift these equipment and parts. The lifting equipment currently used is mostly boom type or gantry type. The former is sometimes difficult to unfold in narrow tunnels, and the latter requires manpower to move and transfer equipment parts, which is very inconvenient to use. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a lifting device for installation and removal of coal mining working faces in coal mines. Compared with swing arm type lifting devices and gantry type lifting devices, it has strong practicality and applicability in the narrow space underground, and facilitates the direct transfer of equipment from the lifting position to the transport vehicle or from the transport vehicle to the installation position.

[0005] To achieve the above objectives, the present utility model provides the following technical solution: A lifting device for installation and removal of coal mining faces underground in coal mines, including an electric crawler, on the top of which a platform is installed. On the top of the platform, a second telescopic cavity is installed. Inside the second telescopic cavity, a second hydraulic telescopic rod is installed. The top end of the piston rod of the second hydraulic telescopic rod is connected to a telescopic column. On the top of the telescopic column, a steering mechanism is installed. On the top of the steering mechanism, a U-shaped frame is installed. On the top of the U-shaped frame, an installation cover is provided. On the side of the installation cover, a second reduction motor is installed. The output shaft of the second reduction motor is connected to a gear. Inside the U-shaped frame, a sliding crossbeam is slidably installed. On the top of the sliding crossbeam, a rack is provided. The rack meshes with the gear. Inside the sliding crossbeam, a guiding slide rod is fixedly provided and a transmission lead screw is rotatably installed. At one end of the sliding crossbeam, a third reduction motor is provided. The output shaft of the third reduction motor is fixedly connected to the transmission lead screw. Inside the sliding crossbeam, a slider is slidably installed. On one side of the slider, a second telescopic support arm is installed. The second telescopic support arm is inserted and connected to a third telescopic cavity. On the sides of the second telescopic support arm and the third telescopic cavity, a third hydraulic telescopic rod is installed. On the third telescopic cavity, a lifting device is provided.

[0006] The beneficial effects of the present utility model are as follows: Through the setting of the electric crawler, the device can be conveniently and quickly transferred underground. And during the lifting process, the device can directly drive the lifted equipment and components to move linearly horizontally, directly linearly translating and lifting the equipment and components from one side of the device to the other side. Compared with the swing arm type lifting tool and the gantry type lifting tool, it has strong practicability and applicability to the narrow space underground, and also facilitates the direct transfer of the equipment from the lifting position to the transport vehicle or from the transport vehicle to the installation position.

[0007] In order to improve the stability of the device during the lifting work:

[0008] As a further improvement of the above technical solution: On the top of the platform, a first telescopic cavity is installed. Inside the first telescopic cavity, a first telescopic support arm is inserted and installed. At the bottom of the first telescopic support arm, a first hydraulic telescopic rod is installed. At the bottom of the first hydraulic telescopic rod, a support is provided.

[0009] The beneficial effect of this improvement is as follows: After controlling the electric crawler to move to the lifting position, pull the first telescopic support arm out of the first telescopic cavity. Then control the piston rod of the first hydraulic telescopic rod to extend to drive the support to descend and contact the ground, playing a role in stably supporting the device, increasing the support area of the device, and thus improving the stability of the device during the lifting work.

[0010] In order to rotate the sliding crossbeam:

[0011] As a further improvement of the above technical solution: The steering mechanism includes a rotating mounting base installed on the top of the telescopic column. A motor is installed inside the rotating mounting base. The output shaft of the motor is connected to a turntable. The turntable is rotatably connected to the rotating mounting base. A U-shaped frame is installed on the top of the turntable.

[0012] The beneficial effect of this improvement is: Control the motor to drive the turntable together with the U-shaped frame and the sliding crossbeam to rotate, thereby driving the sliding crossbeam to adjust the direction. When not in use, rotate the sliding crossbeam to the front-back direction for storage, which is convenient for the device to move.

[0013] In order to limit and slide-guide between the sliding crossbeam and the U-shaped frame:

[0014] As a further improvement of the above technical solution: A guiding and limiting groove is provided inside the U-shaped frame. Guide strips are provided on the side and bottom of the sliding crossbeam. The guide strips are slidably connected to the guiding and limiting groove.

[0015] The beneficial effect of this improvement is: The guide strips cooperate with the guiding and limiting groove to limit and slide-guide between the sliding crossbeam and the U-shaped frame.

[0016] In order to fix and move the slider:

[0017] As a further improvement of the above technical solution: The guiding slide rod is inserted and slidably connected with the slider. The transmission lead screw is threadedly connected with the slider.

[0018] The beneficial effect of this improvement is: When the transmission lead screw rotates, it drives the slider to move through the screw drive with the slider. The guiding slide rod plays a role in assisting the fixation and sliding of the slider.

[0019] In order to prevent the sliding crossbeam from slipping off the U-shaped frame:

[0020] As a further improvement of the above technical solution: Limit plates are provided at both ends of the sliding crossbeam.

[0021] The beneficial effect of this improvement is: The limit plates are used to limit the sliding range of the sliding crossbeam and prevent the sliding crossbeam from slipping off the U-shaped frame.

[0022] In order to adjust the height of the lifting device:

[0023] As a further improvement of the above technical solution: The lifting device includes a winch installed on the top of the third telescopic cavity and a lifting device mounting frame at one end of the third telescopic cavity. A guiding pulley is installed inside the lifting device mounting frame. A steel cable is connected to the winch. The steel cable passes around the guiding pulley and is connected to the lifting device.

[0024] The beneficial effects of this improvement are as follows: When hoisting smaller components, the winch can be controlled to retract and release the steel cable, thereby further adjusting the height of the lifting tool, so that the lifting tool can reach the components.

[0025] Parts not involved in this device are the same as or can be implemented using existing technologies. Description of the Drawings

[0026] Figure 1 is the right front axonometric structure schematic diagram of the present utility model;

[0027] Figure 2 is the structure schematic diagram when the present utility model is working;

[0028] Figure 3 is the front view structure schematic diagram of the present utility model;

[0029] Figure 4 is the left side sectional view schematic diagram of the present utility model;

[0030] Figure 5 is the partial axonometric sectional structure schematic diagram of the present utility model;

[0031] Figure 6 is the partial axonometric structure schematic diagram of the present utility model;

[0032] In the figure: 1, electric crawler; 2, first telescopic cavity; 3, first telescopic support arm; 4, first hydraulic telescopic rod; 5, support; 6, second telescopic cavity; 7, telescopic column; 8, second hydraulic telescopic rod;

[0033] 9, rotating mounting seat; 10, motor; 11, turntable; 12, U-shaped frame; 13, guiding and limiting groove;

[0034] 14, mounting cover; 15, second reduction motor; 16, gear; 17, sliding crossbeam; 18, guiding strip; 19, rack; 20, limiting plate; 21, guiding slide bar; 22, transmission lead screw; 23, third reduction motor; 24, slider; 25, second telescopic support arm; 26, third telescopic cavity; 27, third hydraulic telescopic rod; 28, winch; 29, lifting tool mounting frame; 30, guiding pulley; 31, lifting tool; 32, platform; 33, steel cable. Detailed Implementation Modes

[0035] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in detail below with reference to the drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0036] As Figure 1-6As shown in the figure, a lifting device for installation and removal of coal mining faces underground in coal mines includes an electric crawler 1. A platform 32 is installed on the top of the electric crawler 1. A second telescopic cavity 6 is installed on the top of the platform 32. A second hydraulic telescopic rod 8 is installed in the inner cavity of the second telescopic cavity 6. The top end of the piston rod of the second hydraulic telescopic rod 8 is connected to a telescopic column 7. A steering mechanism is installed on the top of the telescopic column 7. A C-shaped frame 12 is installed on the top of the steering mechanism. An installation cover 14 is provided on the top of the C-shaped frame 12. A second reduction motor 15 is installed on the side of the installation cover 14. The output shaft of the second reduction motor 15 is connected to a gear 16. A sliding cross beam 17 is slidably installed inside the C-shaped frame 12. A rack 19 is provided on the top of the sliding cross beam 17. The rack 19 meshes with the gear 16. A guiding slide rod 21 is fixedly provided inside the sliding cross beam 17 and a transmission lead screw 22 is rotatably installed. A third reduction motor 23 is provided at one end of the sliding cross beam 17. The output shaft of the third reduction motor 23 is fixedly connected to the transmission lead screw 22. A slider 24 is slidably installed inside the sliding cross beam 17. A second telescopic support arm 25 is installed on one side of the slider 24. The second telescopic support arm 25 is inserted and connected to a third telescopic cavity 26. A third hydraulic telescopic rod 27 is installed on the sides of the second telescopic support arm 25 and the third telescopic cavity 26. A lifting device is provided on the third telescopic cavity 26.

[0037] Through the setting of the electric crawler, this device can be conveniently and quickly transferred underground, and during the lifting process, this device can directly drive the lifted equipment and components to move linearly horizontally, directly translating and lifting the equipment and components from one side of this device to the other side in a straight line. Compared with the swing arm type lifting device, it has strong practicability and applicability to the narrow space underground, and also facilitates the direct transfer of the equipment from the lifting position to the transport vehicle or from the transport vehicle to the installation position.

[0038] A first telescopic cavity 2 is installed on the top of the platform 32. A first telescopic support arm 3 is inserted and installed inside the first telescopic cavity 2. A first hydraulic telescopic rod 4 is installed at the bottom of the first telescopic support arm 3. A support 5 is provided at the bottom of the first hydraulic telescopic rod 4.

[0039] After controlling the electric crawler 1 to move to the lifting position, pull the first telescopic support arm 3 out of the first telescopic cavity 2, and then control the piston rod of the first hydraulic telescopic rod 4 to extend to drive the support 5 to descend and contact the ground, playing a role in stabilizing the support of this device, increasing the support area of this device, and thus improving the stability of this device during the lifting operation.

[0040] The steering mechanism includes a rotating mounting base 9 installed at the top of the telescopic column 7. A motor 10 is installed inside the rotating mounting base 9. The output shaft of the motor 10 is connected to a turntable 11. The turntable 11 is rotatably connected to the rotating mounting base 9. A U-shaped frame 12 is installed at the top of the turntable 11.

[0041] Control the motor 10 to drive the turntable 11 together with the U-shaped frame 12 and the sliding crossbeam 17 to rotate, so as to drive the sliding crossbeam 17 to adjust the direction. When not in use, rotate the sliding crossbeam 17 to the front-back direction for storage, which is convenient for the device to move.

[0042] A guiding and limiting groove 13 is provided inside the U-shaped frame 12. Guide strips 18 are provided on both the side and the bottom of the sliding crossbeam 17. The guide strips 18 are slidably connected to the guiding and limiting groove 13.

[0043] The guide strips 18 cooperate with the guiding and limiting groove 13 to limit and slide-guide between the sliding crossbeam 17 and the U-shaped frame 12.

[0044] The guiding slide rod 21 and the slider 24 are inserted and slidably connected. The transmission lead screw 22 is threadedly connected to the slider 24.

[0045] When the transmission lead screw 22 rotates, it drives the slider 24 to move through screw transmission with the slider 24. The guiding slide rod 21 plays a role in assisting the fixing and sliding of the slider 24.

[0046] Limit plates 20 are provided at both ends of the sliding crossbeam 17.

[0047] The limit plates 20 are used to limit the sliding range of the sliding crossbeam 17 to prevent the sliding crossbeam 17 from slipping off the U-shaped frame 12.

[0048] The hoisting device includes a winch 28 installed at the top of the third telescopic cavity 26 and a hoisting device mounting frame 29 at one end of the third telescopic cavity 26. A guiding pulley 30 is installed inside the hoisting device mounting frame 29. A steel cable 33 is connected to the winch 28. The steel cable 33 is connected to the hoisting device 31 after passing around the guiding pulley 30.

[0049] When hoisting smaller components, the winch 28 can be controlled to take in and release the steel cable 33, so as to further adjust the height of the hoisting device 31, and further enable the hoisting device to reach the components.

[0050] Working principle and usage process of the utility model: When this device is in use, after controlling the electric crawler 1 to move to the hoisting position, the first telescopic support arm 3 is pulled outwards from the first telescopic cavity 2. Subsequently, the piston rod of the first hydraulic telescopic rod 4 is extended to drive the support 5 to descend and contact the ground, playing a role in stabilizing the support of this device and increasing the support area of this device. Then, control the motor 10 to drive the turntable 11 together with the U-shaped frame 12 and the sliding crossbeam 17 to rotate, rotating from the front-back direction for easy storage when not in use to the left-right direction. Taking the hoisting work during disassembly as an example, this device is parked on one side of the hoisting equipment, while the vehicle for transporting equipment is parked on the other side of this device. After adjusting the direction of the sliding crossbeam 17, control the third reduction motor 23 to drive the transmission lead screw 22 to rotate. Through the screw drive between the transmission lead screw 22 and the slider 24, drive the slider 24 to move to the side where the equipment is to be disassembled. And according to the requirement, control the second reduction motor 15 to drive the gear 16 to rotate. Through the transmission between the gear 16 and the rack 19, drive the sliding crossbeam 17 to move towards the direction where the equipment is to be disassembled under the cooperation of the guiding limit groove 13 and the guiding strip 18. And the position of the third telescopic cavity 26 can be adjusted by controlling the expansion and contraction of the third hydraulic telescopic rod 27, thereby adjusting the position of the lifting tool 31. When the lifting tool 31 moves above the equipment to be disassembled, the equipment can be connected to the lifting tool 31 through tools such as cables. Subsequently, control the second hydraulic telescopic rod 8 to operate to drive the telescopic column 7 to rise, thereby lifting the equipment. When the equipment rises to a height higher than the platform 32, control the second reduction motor 15 and the third reduction motor 23 to run in the reverse direction, driving the sliding crossbeam 17 to move towards the direction of the equipment transport vehicle, and at the same time driving the slider 24 to also move towards the direction of the equipment transport vehicle, thereby driving the disassembled equipment to move above the transport vehicle. Then, control the second hydraulic telescopic rod 8 to drive the telescopic column 7 to descend, so that the equipment can be placed on the transport vehicle. When hoisting smaller components, the winch 28 can also be controlled to take in and release the steel cable 33, thereby further adjusting the height of the lifting tool 31, so that the lifting tool can reach the components. When carrying out the installation and hoisting work of the equipment, just operate this device in the reverse order according to the foregoing steps. To sum up, through the setting of the electric crawler, this device can be conveniently and quickly transferred underground, and during the hoisting process, this device can directly drive the hoisted equipment and components to perform linear horizontal movement, directly linearly translating and hoisting the equipment and components from one side of this device to the other side. Compared with the swing-arm type lifting tool, it has strong practicability and applicability to the narrow space underground, and it is also convenient for the equipment to be directly transferred from the hoisting position to the transport vehicle or from the transport vehicle to the installation position.

[0051] The circuits, electronic components and modules involved are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by this application does not involve improvements to software and methods either.

[0052] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0053] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A hoisting device for installation and removal of coal mining faces in underground coal mines, characterized in that: It includes an electric crawler (1), a platform (32) is installed on the top of the electric crawler (1), a second telescopic cavity (6) is installed on the top of the platform (32), a second hydraulic telescopic rod (8) is installed in the inner cavity of the second telescopic cavity (6), the top end of the piston rod of the second hydraulic telescopic rod (8) is connected to a telescopic column (7), a steering mechanism is installed on the top of the telescopic column (7), a C-shaped frame (12) is installed on the top of the steering mechanism, an installation cover (14) is provided on the top of the C-shaped frame (12), a second reduction motor (15) is installed on the side of the installation cover (14), the output shaft of the second reduction motor (15) is connected to a gear (16), a sliding cross beam (17) is slidably installed inside the C-shaped frame (12), a rack (19) is provided on the top of the sliding cross beam (17), the rack (19) meshes with the gear (16), a guiding slide bar (21) is fixedly provided inside the sliding cross beam (17) and a transmission lead screw (22) is rotatably installed, a third reduction motor (23) is provided at one end of the sliding cross beam (17), the output shaft of the third reduction motor (23) is fixedly connected to the transmission lead screw (22), a slider (24) is slidably installed inside the sliding cross beam (17), a second telescopic support arm (25) is installed on one side of the slider (24), the second telescopic support arm (25) is inserted and connected to a third telescopic cavity (26), a third hydraulic telescopic rod (27) is installed on the sides of the second telescopic support arm (25) and the third telescopic cavity (26), and a hoisting device is provided on the third telescopic cavity (26).

2. The hoisting device for installation and removal of coal mining faces in underground coal mines according to claim 1, characterized in that: A first telescopic cavity (2) is installed on the top of the platform (32), a first telescopic support arm (3) is inserted and installed inside the first telescopic cavity (2), a first hydraulic telescopic rod (4) is installed at the bottom of the first telescopic support arm (3), and a support (5) is provided at the bottom of the first hydraulic telescopic rod (4).

3. The hoisting device for installation and removal of coal mining faces in underground coal mines according to claim 1, characterized in that: The steering mechanism includes a rotating mounting seat (9) installed on the top of the telescopic column (7), a motor (10) is installed inside the rotating mounting seat (9), the output shaft of the motor (10) is connected to a turntable (11), the turntable (11) is rotatably connected to the rotating mounting seat (9), and a C-shaped frame (12) is installed on the top of the turntable (11).

4. The hoisting device for installation and removal of coal mining faces in underground coal mines according to claim 1, characterized in that: A guiding and limiting groove (13) is provided inside the C-shaped frame (12), guiding strips (18) are provided on the side and bottom of the sliding cross beam (17), and the guiding strips (18) are slidably connected to the guiding and limiting groove (13).

5. A lifting device for installation and removal of coal mining working faces in underground coal mines according to claim 1, Features: The guide slide rod (21) is inserted and slidably connected with the slide block (24), and the transmission screw rod (22) is threadedly connected with the slide block (24).

6. A lifting device for installation and removal of coal mining working faces in underground coal mines according to claim 1, Features: Limiting plates (20) are provided at both ends of the sliding crossbeam (17).

7. A lifting device for installation and removal of coal mining working faces in underground coal mines according to claim 1, Features: The sling device comprises a winch (28) installed on the top of the third telescopic chamber (26) and a sling mounting frame (29) at one end of the third telescopic chamber (26), a guide pulley (30) is installed on the inner side of the sling mounting frame (29), a steel cable (33) is connected to the winch (28), and the steel cable (33) is connected to the sling (31) after passing around the guide pulley (30).

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