Novel flexible hydraulic support

Abstract

The utility model relates to the field of coal mining, in particular to a novel flexible hydraulic support which comprises two bases, two fences, a mounting seat and flexible supporting cloth, a plurality of fixing drill rods are evenly arranged on the sides, close to the side face of a coal mine, of the bases, the fixing drill rods can be inserted into the side face of the coal mine to play a fixing role, and the fences are arranged on the two sides of the hydraulic support in a surrounding mode. The periphery of the fence is fixedly connected with the two sides of the support, the two sides of the coal mine can be supported, flexible supporting cloth is fixedly installed on the top of the installation base through a plurality of second hydraulic supporting rods, the flexible supporting cloth can be suitable for top contact faces of different shapes and can be tightly attached to the top contact faces of the coal mine, and the supporting performance is better; the two sides of the flexible supporting cloth are both coated with abrasion-resistant paint, the flexible supporting cloth is prevented from being abraded and scratched, and the service life of the hydraulic support is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of coal mining, in particular to a new type of flexible hydraulic support. Background Art

[0002] A hydraulic support is a coal mining face equipment that uses high-pressure liquid as power and is composed of several hydraulic components and some metal structural parts to support and control the roof. The hydraulic support uses high-pressure liquid as power, and through the telescopic movement of various power cylinders, the support can complete various actions such as rising, falling, walking, and pushing the conveyor, so that the support can repeatedly support, move forward, and adjust as the working face advances.

[0003] However, in the prior art, there are the following defects:

[0004] However, the top support structure of the existing hydraulic support is a rigid structure with fixed shape and size. However, coal mine cavities are formed by mining, and the surfaces of their tops and around may have irregular protrusions. The existing hydraulic supports cannot be applied to contact surfaces of different shapes and have no reinforcement structure, resulting in insufficient support force of the hydraulic support. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new type of flexible hydraulic support to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A new type of flexible hydraulic support, including two bases, two enclosures, a mounting seat, and a flexible support cloth. At both ends of the top of the base, a first hydraulic support rod is fixedly installed. The telescopic end of the first hydraulic support rod is fixedly connected to the corner of the bottom of the mounting seat. On both sides and in the middle of the top of the mounting seat, several second hydraulic support rods are fixedly installed. A plurality of connectors are distributed at the bottom of the flexible support cloth. The telescopic rod of the second hydraulic support rod is fixedly connected to the bottom of the connector.

[0007] Adopting the above technical solution, the height of the first hydraulic support rod can be adjusted according to the height of the coal mine cavity. Both the flexible support cloth and the enclosure are flexible structures, which can be applied to irregular contact surfaces on the top and both sides and play a supporting role, facilitating workers to mine coal.

[0008] Between the bottom of the adjacent sides of the first hydraulic support rod and the top of the base, a reinforcing plate is fixedly installed. The cross-sectional shape of the reinforcing plate is a right trapezoid. At the bottom of both ends of the base, a connecting plate is fixedly installed. An installation hole is opened in the middle of the connecting plate.

[0009] Adopting the above technical solution, this solution improves the connection strength between the first hydraulic support rod and the base, preventing it from breaking and collapsing. The installation hole facilitates the installation and fixation of the hydraulic support to the ground.

[0010] A number of fixing pins are evenly distributed in the middle of one side of the base. A protruding part is provided in the middle of the bottom of the enclosure. A number of round holes are evenly formed in the protruding part. The round holes are sleeved outside the fixing pins, and a steel ring is sleeved inside the round holes.

[0011] Adopting the above technical solution, the bottom of the enclosure of this solution is connected to the fixing pins through the round holes on the protruding part, and the steel ring can prevent the inner side of the round holes from being worn.

[0012] Fixing parts are provided on both sides of the enclosure. A crease is provided between the fixing parts and the middle of the enclosure. One side of the fixing part and the first hydraulic support rod are fixedly connected by screws. The top of the enclosure and the side of the mounting seat are fixedly connected by a plurality of screws.

[0013] Adopting the above technical solution, both sides of the enclosure of this solution are fixedly connected to the first hydraulic support rod through the fixing parts, and the top is fixedly connected to the side of the mounting seat, ensuring that the four sides of the enclosure are fixedly installed, playing a role of supporting and blocking the side of the coal mine.

[0014] A mounting box is fixedly installed in the middle of the top of one of the bases. A motor is fixedly installed on the inner wall of the middle of the bottom of the mounting box. A circuit board is fixedly installed on the inner wall of the side of the mounting box. A first controller and a second controller are fixedly installed on the inner wall of the top of the mounting box in sequence. The first hydraulic support rod is electrically connected to the first controller. The second hydraulic support rod is electrically connected to the second controller. Both the first controller and the second controller are electrically connected to the circuit board. The circuit board is electrically connected to the motor.

[0015] Adopting the above technical solution, the first controller controls the lifting of the first hydraulic support rod, and the second controller controls the lifting of the second hydraulic support rod.

[0016] The flexible support cloth includes a support layer and two flexible cloth layers. The support layer includes two connecting rods and a number of chains. Both ends between the two flexible cloth layers are fixedly connected through the connecting rods, and the two connecting rods are connected by a number of chains.

[0017] Adopting the above technical solution, the chains of this solution play a role in connecting the connecting rods. The shape of the flexible support cloth can change with the contact surface of the top of the coal mine, fit closely with the top, and have a better support effect.

[0018] The flexible cloth layer includes a base layer. Both ends of the bottom of the base layer are fixedly connected to the tops of the two connecting rods respectively. An enhancing layer and a wear-resistant layer are sequentially provided on the top of the base layer.

[0019] Adopting the above technical solution, the wear-resistant layer of this solution is coated with wear-resistant paint, which is in direct contact with the surface of the top of the coal mine and can prevent it from being worn and scratched.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] The support structure at the top of the present utility model is a flexible support cloth, which can change its shape according to the shape of the contact surface of the coal mine roof and fit closely with it, improving the support force of the support. Flexible enclosures are fixedly installed on both sides, which can support both sides of the coal mine and protect the mining workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the front structure of the present utility model;

[0024] Figure 3 is a schematic diagram of the overall structure of the enclosure of the present utility model;

[0025] Figure 4 is a schematic diagram of the internal structure of the flexible support cloth of the present utility model;

[0026] Figure 5 is a schematic diagram of the internal structure of the installation box of the present utility model.

[0027] In the figure: 1, base; 2, first hydraulic support rod; 3, enclosure; 4, mounting seat; 5, second hydraulic support rod; 6, flexible support cloth; 7, connecting plate; 8, fixed pin; 9, mounting hole; 10, installation box; 11, reinforcing plate; 12, connecting piece; 13, crease; 14, fixing part; 15, protruding part; 16, round hole; 17, flexible cloth layer; 18, base layer; 19, reinforcing layer; 20, wear-resistant layer; 21, support layer; 22, connecting rod; 23, chain; 24, circuit board; 25, first controller; 26, second controller; 27, motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5, the present utility model provides a novel flexible hydraulic support, which includes two bases 1, two enclosures 3, a mounting seat 4 and a flexible support cloth 6. At both ends of the top of the base 1, a first hydraulic support rod 2 is fixedly installed. The telescopic end of the first hydraulic support rod 2 is fixedly connected to the corners of the bottom of the mounting seat 4. A number of second hydraulic support rods 5 are fixedly installed on both sides and in the middle of the top of the mounting seat 4. A number of connectors 12 are distributed at the bottom of the flexible support cloth 6. The telescopic rod of the second hydraulic support rod 5 is fixedly connected to the bottom of the connector 12. The enclosures 3 are arranged on both sides of the hydraulic support. The base 1 and the mounting seat 4 are connected by the first hydraulic support rod 2.

[0030] A reinforcing plate 11 is fixedly installed between the bottom of the adjacent two sides of the first hydraulic support rod 2 and the top of the base 1. The cross-sectional shape of the reinforcing plate 11 is a right trapezoid. At the bottom of both ends of the base 1, a connecting plate 7 is fixedly installed. An installation hole 9 is opened in the middle of the connecting plate 7. The hydraulic support is fixedly installed on the coal mine ground through the connecting plates 7 on both sides of the base 1.

[0031] A number of fixed pins 8 are evenly distributed in the middle of one side of the base 1. A protruding part 15 is provided in the middle of the bottom of the enclosure 3. A number of round holes 16 are evenly opened on the protruding part 15. The round holes 16 are sleeved on the outside of the fixed pins 8. A steel ring is sleeved inside the round holes 16. The bottom of the enclosure 3 is sleeved on the fixed pins 8 through the round holes 16, and then the fixed pins 8 are inserted into the soil on the side of the coal mine for fixation.

[0032] Fixed parts 14 are provided on both sides of the enclosure 3. A crease 13 is provided between the fixed parts 14 and the middle of the enclosure 3. The fixed parts 14 are fixedly connected to one side of the first hydraulic support rod 2 by screws. The top of the enclosure 3 and the side of the mounting seat 4 are fixedly connected by a number of screws. The two sides and the top of the enclosure 3 are fixed by screwing on the side of the support for tensioning.

[0033] A mounting box 10 is fixedly installed in the middle of the top of one of the bases 1. A motor 27 is fixedly installed on the inner wall of the middle of the bottom of the mounting box 10. A circuit board 24 is fixedly installed on the inner wall of the side of the mounting box 10. A first controller 25 and a second controller 26 are successively fixedly installed on the inner wall of the top of the mounting box 10. The first hydraulic support rod 2 is electrically connected to the first controller 25. The second hydraulic support rod 5 is electrically connected to the second controller 26. Both the first controller 25 and the second controller 26 are electrically connected to the circuit board 24. The circuit board 24 is electrically connected to the motor 27. The first controller 25 and the second controller 26 respectively control the lifting of the first hydraulic support rod 2 and the second hydraulic support rod 5.

[0034] The flexible support cloth 6 includes a support layer 21 and two flexible cloth layers 17. The support layer 21 includes two connecting rods 22 and a plurality of chains 23. The two ends of the two flexible cloth layers 17 are fixedly connected through the connecting rods 22, and the two connecting rods 22 are connected by a plurality of chains 23. The two flexible cloth layers 17 are connected through the support layer 21.

[0035] The flexible cloth layer 17 includes a base layer 18. The two ends of the bottom of the base layer 18 are fixedly connected to the tops of the two connecting rods 22 respectively. An enhancing layer 19 and a wear-resistant layer 20 are sequentially arranged on the top of the base layer 18. The wear-resistant layer 20 and the enhancing layer 19 can improve the wall cloth and resistance of the flexible cloth layer 17.

[0036] Working principle: When the utility model is in use, first, the round hole 16 at the bottom of the enclosure 3 is sleeved on the fixing pin 8, and then the fixing part 14 on the side of the enclosure 3 is folded through the crease 13 and covered on the side of the first hydraulic support rod 2. The two sides and the top of the enclosure 3 are fixedly connected to the side of the first hydraulic support rod 2 and the side of the mounting seat 4 by screws to complete the installation of the enclosure 3. Then, the fixing pin 8 is hammered and inserted into the soil on the side of the coal mine. The first hydraulic support rod 2 and the second hydraulic support rod 5 are started to raise the support, so that the top of the flexible support cloth 6 is closely attached to the surface of the top of the coal mine. The hydraulic support plays a supporting role in both the top and the two sides of the coal mine, preventing the coal mine from collapsing and the crushed stones from rolling down to injure the mining workers.

[0037] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel flexible hydraulic support, comprising two bases (1), two enclosures (3), a mounting seat (4) and a flexible support cloth (6), characterized in that: First hydraulic support rods (2) are fixedly mounted at both ends of the top of the base (1); the telescopic ends of the first hydraulic support rods (2) are fixedly connected to the corners of the bottom of the mounting seat (4); a plurality of second hydraulic support rods (5) are fixedly mounted on both sides and the middle of the top of the mounting seat (4); a plurality of connecting pieces (12) are distributed at the bottom of the flexible supporting cloth (6); and the telescopic rods of the second hydraulic support rods (5) are fixedly connected to the bottom of the connecting piece (12).

2. A new type of flexible hydraulic support according to claim 1, characterized in that: A reinforcing plate (11) is fixedly mounted between the bottoms of the two adjacent sides of the first hydraulic support rod (2) and the top of the base (1), the cross-sectional shape of the reinforcing plate (11) being a right-angled trapezoid, and a connecting plate (7) is fixedly mounted at the bottoms of both ends of the base (1), a mounting hole (9) being provided in the middle of the connecting plate (7).

3. A new type of flexible hydraulic support according to claim 1, characterized in that: A plurality of fixing pins (8) are evenly distributed in the middle of one side of the base (1), a protrusion (15) is provided in the middle of the bottom of the enclosure (3), a plurality of round holes (16) are evenly opened on the protrusion (15), the round holes (16) are sleeved on the outside of the fixing pins (8), and a steel ring is sleeved on the inside of the round holes (16).

4. A novel flexible hydraulic support according to claim 1, characterized in that: Both sides of the enclosure (3) are provided with fixing parts (14), a fold (13) is provided between the fixing parts (14) and the middle of the enclosure (3), the fixing parts (14) are fixedly connected to one side of the first hydraulic support rod (2) by means of screws, and the top of the enclosure (3) is fixedly connected to the side of the mounting seat (4) by means of a plurality of screws.

5. The novel flexible hydraulic support according to claim 1 is characterized in that: A mounting box (10) is fixedly mounted in the middle of the top of one of the bases (1), a motor (27) is fixedly mounted on the inner wall in the middle of the bottom of the mounting box (10), a circuit board (24) is fixedly mounted on the inner wall of the side of the mounting box (10), a first controller (25) and a second controller (26) are fixedly mounted on the inner wall of the top of the mounting box (10) in sequence, the first hydraulic support rod (2) is electrically connected to the first controller (25), the second hydraulic support rod (5) is electrically connected to the second controller (26), the first controller (25) and the second controller (26) are both electrically connected to the circuit board (24), and the circuit board (24) is electrically connected to the motor (27).

6. The novel flexible hydraulic support according to claim 1 is characterized in that: The flexible support cloth (6) comprises a support layer (21) and two flexible cloth layers (17); the support layer (21) comprises two connecting rods (22) and a plurality of chains (23); both ends of the two flexible cloth layers (17) are fixedly connected via the connecting rod (22); and the two connecting rods (22) are connected via the plurality of chains (23).

7. A novel flexible hydraulic support according to claim 6, characterized in that: The flexible cloth layer (17) comprises a base layer (18), the two ends of the bottom of the base layer (18) are respectively fixedly connected to the tops of two connecting rods (22), and the top of the base layer (18) is provided with a reinforcement layer (19) and a wear-resistant layer (20) in sequence.

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