Coal mining supporting and protecting assembly

Abstract

The utility model belongs to the field of underground safety protection, and relates to a coal mining support protection assembly which comprises a seat box, a bracket, a buffer type material guide plate and a top frame, the bracket is vertically arranged on the seat box; the top frame is arranged at the top of the bracket; and the buffer type guide plate is movably arranged on the peripheral side of the top frame. The utility model provides the coal mining supporting and protecting assembly with high safety degree.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of underground safety protection, and relates to a protection assembly, in particular to a coal mining support protection assembly. BACKGROUND

[0002] The support used in the underground coal mine is a necessary facility for safe operation in the underground coal mine, and the hydraulic support is currently commonly used in large mines, which has the characteristics of convenient operation and high safety factor. When the traditional mobile hydraulic support in the underground coal mine is replaced or the coal machine located in the coal mining working face cuts coal, the coal blocks and gangue can easily splash out and damage the supporting device, thereby causing a safety hazard. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above technical problems in the background art, the utility model provides a coal mining support protection assembly with high safety.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A coal mining support protection assembly, characterized in that: the coal mining support protection assembly comprises a seat box, a support, a buffer type material guide plate and a top frame; the support is vertically arranged on the seat box; the top frame is arranged on the top of the support; and the buffer type material guide plate is movably arranged on the periphery of the top frame.

[0006] The buffer type material guide plate comprises a material guide piece, a guide block, a guide groove and a tension spring; the material guide piece is movably arranged on the periphery of the top frame; the lower surface of the material guide piece is provided with the guide groove; the guide block is arranged in the guide groove and can move along the axial direction of the guide groove; and one end of the tension spring is arranged on the support, and the other end is connected with the guide block.

[0007] The material guide piece is in the shape of a whole fan; the material guide piece is a plurality of, and the plurality of material guide pieces are arranged in a circular ring shape around the periphery of the top frame; and the guide groove is arranged along the radial direction of the fan.

[0008] The coal mining support protection assembly further comprises a telescopic assembly arranged in the support along the axial direction of the support, the telescopic assembly comprises a hydraulic telescopic rod and a lifting frame connected with the hydraulic telescopic rod; the top frame is arranged on the top of the lifting frame; the hydraulic telescopic rod is embedded in the support; and the hydraulic telescopic rod drives the top frame to rise and fall through the lifting frame.

[0009] The coal mining support protection assembly further comprises a lifting platform and a lifting platform driving device connected with the lifting platform; the lifting platform driving device is arranged on the seat box; the support is vertically arranged on the lifting platform; and the lifting platform driving device drives the support to rise and fall along the axial direction of the support through the lifting platform.

[0010] The lifting platform driving device comprises a guide sleeve, a lifting cylinder, a guide rod, a screw rod, a toothed disc, a bevel gear and a motor.

[0011] The lifting platform is provided with a slope plate on the periphery.

[0012] The seat box is provided with a collecting groove.

[0013] The utility model has the advantages of:

[0014] The utility model provides a coal mining support protection assembly, including seat box, support, buffer type material guide plate and top frame, support vertical setting is in seat box, top frame is located in the top of support, buffer type material guide plate activity setting is in the periphery of top frame. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the front view structure schematic diagram of the coal mining support protection assembly provided by the utility model;

[0016] Figure 2 is Figure 1 the enlarged structure schematic diagram of A in

[0017] Figure 3 is Figure 1 the enlarged structure schematic diagram of B in

[0018] Figure 4 is the side view structure schematic diagram of the coal mining support protection assembly provided by the utility model;

[0019] in the drawing:

[0020] 1-seat box; 2-buffer type material guide plate; 3-top frame; 4-lifting frame; 5-lifting platform; 501-slope plate; 7-guide sleeve; 8-support; 9-lifting cylinder; 10-collecting groove; 11-guide rod; 20-screw; 21-toothed disc; 22-screw rod; 23-bevel gear; 24-motor; 25-driving rod; 26-guide block; 27-guide groove; 28-tension spring; 29-hydraulic telescopic rod. DETAILED DESCRIPTION

[0021] Referring to Figure 1 The utility model provides a kind of coal mining support protection assembly, including seat box 1, support 8, buffer type material guide plate 2 and top frame 3;Support 8 is vertically arranged on seat box 1;Top frame 3 is placed on the top of support 8;Buffer type material guide plate 2 is movably arranged in the lateral side of top frame 3.The utility model can buffer the impact force when falling coal contacts buffer type material guide plate by the elastic deformation of buffer type material guide plate, and part kinetic energy of falling coal is absorbed, so that falling coal slides in relatively gentle manner, and falling coal is soft landing, and the safety protection of personnel and equipment parts on lifting platform and under top frame is reduced.

[0022] Referring to Figure 1 And Figure 3 The utility model discloses buffer type material guide plate 2 includes material guide piece, guide block 26, guide groove 27 and tension spring 28;Material guide piece is movably arranged in the lateral side of top frame 3;The lower surface of material guide piece is provided with guide groove 27;Guide block 26 is placed in guide groove 27 and moves along the axial direction of guide groove 27 freely;One end of tension spring 28 is arranged on support 8, and the other end is connected with guide block 26.Exemplarily, material guide piece is fan-shaped as a whole;Material guide piece is multiple, and multiple material guide pieces are integrally formed into circular ring shape and are arranged around the lateral side of top frame 3;Guide groove 27 is arranged along the radial direction of fan shape.The utility model utilizes the expansibility, elastic connection of tension spring 28 and the limiting of guide block 26 along guide groove 27, so that buffer type material guide plate 2 utilizes the elastic deformation of tension spring 28, can buffer the impact force when falling coal contacts buffer type material guide plate 2, and part kinetic energy of falling coal is absorbed, so that falling coal slides in relatively gentle manner.

[0023] Referring to Figure 1 And Figure 4 The utility model discloses coal mining support protection assembly further includes telescopic assembly in the inside of support 8 along the axial direction of support 8, and telescopic assembly includes hydraulic telescopic rod 29 and lifting frame 4 connected with hydraulic telescopic rod 29;Top frame 3 is arranged on the top of lifting frame 4;Hydraulic telescopic rod 29 is embedded in the inside of support 8;Hydraulic telescopic rod 29 drives top frame 3 to lift freely through lifting frame 4.The height of use of top frame 3 can be regulated by hydraulic telescopic rod 29, and the adjustability of device is improved.

[0024] Referring to Figure 1The coal mining support and protection assembly also includes a lifting platform 5 and a lifting platform drive device connected to the lifting platform 5; the lifting platform drive device is mounted on the seat box 1; the support 8 is vertically mounted on the lifting platform 5; the lifting platform drive device drives the support 8 to move freely up and down along the axial direction of the support 8 via the lifting platform 5. (See also...) Figure 1 as well as Figure 2 For example, the lifting platform drive device used in this utility model includes a guide sleeve 7, a lifting cylinder 9, a guide rod 11, a screw 20, a gear disc 21, a bevel gear 23, and a motor 24; the guide rod 11 and the screw 20 are parallel; the screw 20 is vertically movably mounted on the seat box 1; the lifting cylinder 9 is fitted outside the screw 20 and threadedly engaged with the screw 20; the guide sleeve 7 is fitted on the guide rod 11 and moves freely along the axial direction of the guide rod 11; the guide sleeve 7 is connected to the lifting cylinder 9; the lifting platform 5 is fixedly mounted on the top of the lifting cylinder 9; the gear disc 21 is fixedly mounted on the screw 20 and moves synchronously with the screw 20; the bevel gear 23 meshes with the gear disc 21; the motor 24 is connected to the bevel gear 23; the motor 24 drives the screw 20 to rotate through the bevel gear 23 and the gear disc 21; the screw 20 drives the lifting platform 5 to move freely up and down along the axial direction of the screw 20 through the lifting cylinder 9. For example, the motor 24 is connected to the bevel gear 23 through the drive rod 25 and drives the bevel gear 23 to rotate. The gear plate 21 can be fitted and fixed on the lead screw 22. The axial direction of the lead screw 22 is the same as the axial direction of the screw 20. The lead screw 22 and the screw 20 are fixedly connected and can rotate synchronously.

[0025] See Figure 4 The lifting platform 5 used in this invention has a ramp 501 on its periphery. See also Figure 1 The seat box 1 used in this utility model is equipped with a collection trough 10; the collection trough 10 is located at the orthogonal projection of the slope plate 501 and / or the buffer guide plate 2 on the horizontal plane. The falling coal or gangue is concentrated in the collection trough 10, thereby providing safety protection for the personnel and equipment parts under the top frame 3 and on the lifting platform 5.

[0026] The coal mining support and protection assembly provided by this utility model, when in use, drives the lifting platform 5 to rise and fall via the lifting platform drive device to adjust the height of the lifting platform 5. Subsequently, the height of the top frame 3 and the buffer guide plate 2 can be adjusted via the hydraulic telescopic rod 29. Utilizing the expansiveness and elastic connection of the tension spring 28 and the limiting property of the guide block 26 sliding along the guide groove 27, the buffer guide plate 2, through the elastic deformation of the tension spring 28, can buffer the impact force when the falling coal contacts the buffer guide plate 2 and absorb part of the kinetic energy of the falling coal, so that the falling coal slides down in a gentler manner and is guided by the buffer guide plate 2 to be concentrated in the collection trough 10, achieving a soft landing for the falling coal, reducing the degree of damage to the support equipment or personnel caused by the falling coal, and thus improving the safety of use.

Claims

1. A coal mining support and protection component, characterized in that: The coal mining support and protection assembly includes a seat box (1), a support (8), a buffer guide plate (2), and a top frame (3); the support (8) is vertically mounted on the seat box (1); the top frame (3) is placed on top of the support (8); and the buffer guide plate (2) is movably mounted around the top frame (3).

2. The coal mining support and protection assembly according to claim 1, characterized in that: The buffered guide plate (2) includes a guide plate, a guide block (26), a guide groove (27), and a tension spring (28); the guide plate is movably disposed on the periphery of the top frame (3); the guide groove (27) is provided on the lower surface of the guide plate; the guide block (26) is placed in the guide groove (27) and moves freely along the axial direction of the guide groove (27); one end of the tension spring (28) is disposed on the bracket (8), and the other end is connected to the guide block (26).

3. The coal mining support and protection assembly according to claim 2, characterized in that: The guide plate is fan-shaped; there are multiple guide plates, which are arranged in a circular ring around the top frame (3); the guide groove (27) is arranged radially along the fan shape.

4. The coal mining support and protection assembly according to claim 3, characterized in that: The coal mining support and protection assembly also includes a telescopic assembly placed inside the support (8) along the axial direction of the support (8). The telescopic assembly includes a hydraulic telescopic rod (29) and a lifting frame (4) connected to the hydraulic telescopic rod (29). The top frame (3) is set on the top of the lifting frame (4). The hydraulic telescopic rod (29) is embedded inside the support (8). The hydraulic telescopic rod (29) drives the top frame (3) to rise and fall freely through the lifting frame (4).

5. The coal mining support and protection assembly according to claim 1, 2, 3, or 4, characterized in that: The coal mining support and protection assembly also includes a lifting platform (5) and a lifting platform drive device connected to the lifting platform (5); the lifting platform drive device is set on the seat box (1); the support (8) is vertically set on the lifting platform (5); the lifting platform drive device drives the support (8) to move freely up and down along the axial direction of the support (8) through the lifting platform (5).

6. The coal mining support and protection assembly according to claim 5, characterized in that: The lifting platform drive device includes a guide sleeve (7), a lifting cylinder (9), a guide rod (11), a screw (20), a gear disc (21), a bevel gear (23), and a motor (24); the guide rod (11) and the screw (20) are parallel; the screw (20) is vertically movably mounted on the seat box (1); the lifting cylinder (9) is fitted outside the screw (20) and threadedly engaged with the screw (20); the guide sleeve (7) is fitted on the guide rod (11) and moves freely along the axial direction of the guide rod (11); the guide sleeve (7) is mounted ... the screw (20) is mounted on the guide rod (11). 7) Connected to the lifting cylinder (9); the lifting platform (5) is fixedly installed on the top of the lifting cylinder (9); the gear plate (21) is fixedly installed on the screw (20) and moves synchronously with the screw (20); the bevel gear (23) meshes with the gear plate (21); the motor (24) is connected to the bevel gear (23); the motor (24) drives the screw (20) to rotate through the bevel gear (23) and the gear plate (21); the screw (20) drives the lifting platform (5) to move freely up and down along the axial direction of the screw (20) through the lifting cylinder (9).

7. The coal mining support and protection assembly according to claim 6, characterized in that: The lifting platform (5) is provided with a ramp (501) on its periphery.

8. The coal mining support and protection assembly according to claim 7, characterized in that: The seat box (1) is provided with a collection trough (10); the collection trough (10) is placed at the orthographic projection of the ramp (501) and / or the buffer guide plate (2) on the horizontal plane.

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