Combined light hydraulic supporting equipment

Abstract

The utility model discloses combined type light hydraulic supporting equipment, which relates to the technical field of coal mining and comprises a first single support and a second single support, and top beams and bases of the first single support and the second single support are respectively connected through a top beam connecting device and a base connecting device to form a combined structure. The top beam connecting device comprises a plurality of sleeves, the sleeves are fixedly arranged on the top beams of the two single supports in a pairwise opposite mode, every two opposite sleeves are connected with each other through a connecting pin shaft, and the connecting pin shafts and the sleeves are locked through locking mechanisms. According to the single hydraulic support, the single supports can be rapidly combined and disassembled through the connecting mechanism, the single hydraulic support is small and exquisite in structure and quite suitable for narrow mine space, operation flexibility and maintenance are improved, the weight of the single hydraulic support does not exceed 2 tons, transportation and adjustment are convenient, and the single hydraulic support is economical and practical. The structure is simplified, the weight is reduced, and the manufacturing and maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining technical field especially relates to combined light hydraulic support equipment. BACKGROUND

[0002] Due to the complex resource occurrence conditions, thin and unstable occurrence of coal seams, the working face is usually small, the working face length is generally 100-200m, and the working face tendency length is generally 30-80m, large-scale comprehensive mechanized machinery is difficult to adapt, hydraulic support is an important supporting equipment in the process of coal mining, the traditional hydraulic support is mainly aimed at large coal mines in the north, and the volume and weight are large, generally one width is 2-4 degrees, and the weight is nearly 10 tons.

[0003] In the prior art, when part of the hydraulic support is disassembled, the hydraulic system is closed, the power supply and the hydraulic source are cut off, the high-pressure pipeline pressure is released, the pipeline is disassembled, the parts are stored and the connection condition is recorded, then the top beam and the parts are disassembled, the crane is used for cooperation, the top beam and the parts are hoisted away, the jacks, tail beams, columns and other components are disassembled, and the disassembled parts are numbered and placed.

[0004] With the mechanization process of small coal mines in the south, the supporting equipment cannot keep up with the progress of the coal mining machine at present, if the hydraulic support of the large coal mine in the north is used, there is a problem of moving difficulty, therefore, the coal mining industry in the south urgently needs a hydraulic support with simple structure, small volume, light weight, easy operation and high safety. The hydraulic support should have flexible operation ability in a small space, in addition, the new coal mining machine should have a simple and intuitive operation mode to improve the operation efficiency and safety, in view of the above problems, the combined light hydraulic support is proposed. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above shortcomings, the utility model provides a combined light hydraulic support, which aims at improving the problem of large volume and weight of part of the hydraulic support in the prior art.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] A combined light hydraulic support, comprising a first single support and a second single support, wherein the top beams of the first single support and the second single support are connected through a top beam connecting device, and the bases are connected through a base connecting device to form a combined structure.

[0008] The top beam connecting device comprises a plurality of sleeves, which are respectively fixed on the top beams of the two single supports and aligned in pairs; the two sleeves opposite to each other are connected to each other through a connecting pin shaft, and the connecting pin shaft and the sleeves are locked through a locking mechanism.

[0009] The base connecting device comprises a mounting plate and two ears respectively fixed on one end of the bases of the two single supports, and the two ears are respectively fixed on the mounting plate to realize the connection of the two bases.

[0010] As a further description of the above technical solution:

[0011] The locking mechanism comprises mounting through holes arranged on the sleeves and mounting screw holes arranged at two ends of the connecting pin shaft, the two ends of the connecting pin shaft are arranged in the two sleeves opposite to each other, and the connecting pin shaft is screwed through the mounting through holes and the mounting screw holes to realize locking.

[0012] As a further description of the above technical solution:

[0013] The light hydraulic support further comprises dust falling devices arranged on both sides of the hydraulic support, the dust falling device comprises a water tank, a water pump, a pipeline and a spray head, the water pump is connected with the water tank, and the water pump is connected with the spray head through the pipeline.

[0014] As a further description of the above technical solution:

[0015] The front end of the top beam is hingedly connected with a protective side, and the protective side is controlled to be turned over through a protective side turning over oil cylinder.

[0016] As a further description of the above technical solution:

[0017] A pushing and pulling oil cylinder is connected to the mounting plate of the base connecting device, and the pushing and pulling oil cylinder is arranged in a space between the base of the first single support and the base of the second single support.

[0018] As a further description of the above technical solution:

[0019] Two ends and a middle part of the mounting plate are respectively provided with mounting holes, two ears are connected with two mounting holes at two ends, and a piston rod end of the pushing and pulling oil cylinder is connected with a mounting hole in the middle part.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In this utility model, the single support can be quickly assembled and disassembled through the top beam connecting device and the base connecting device. The single hydraulic support has a compact structure, which is very suitable for narrow mine spaces, improving operational flexibility. In terms of maintenance, the single hydraulic support weighs no more than 2 tons, which is convenient for transportation and adjustment. In terms of economy, the simplified structure and weight reduce manufacturing and maintenance costs, improve efficiency and reduce failure rate, bringing long-term economic benefits. In general, this design fully considers the special environment and needs of underground coal mines, and has significant advantages in terms of safety, efficiency and applicability.

[0022] 2. In this invention, water in the water tank flows through a water pipe to the connecting branch pipe, and is sprayed into a fine water mist through the nozzle. This reduces the dust concentration in coal mines, improves the working environment, and addresses the issue that diffused dust can severely impair visibility, making it difficult for workers to see surrounding equipment and conditions, increasing the risk of misoperation and accidents. By spraying water mist through the hydraulic support, airborne dust can be quickly settled, making the working environment clearer. This allows workers to operate equipment more accurately, promptly identify and address safety hazards, and improve operational safety. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the combined lightweight hydraulic support equipment proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the connection between the top beam and the support shield beam of the combined lightweight hydraulic support equipment proposed in this utility model.

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0026] Figure 4 This is a structural schematic diagram from another perspective of the combined lightweight hydraulic support equipment proposed in this utility model.

[0027] Figure 5 for Figure 4 A schematic diagram showing the location of the side-mounted tilting cylinder after the partial structure has been removed.

[0028] Figure 6 This is a schematic diagram of the structure for removing the top beam of the combined lightweight hydraulic support equipment proposed in this utility model.

[0029] Legend: 1. Top beam; 2. Pipeline; 3. Box body; 4. Base; 5. Front connecting rod; 6. Rear connecting rod; 7. Mounting plate; 8. Support lug; 9. Support shield beam; 10. Side guard; 11. Nozzle; 12. Push-pull cylinder; 13. Support cylinder; 14. Balance cylinder; 15. Side guard tilting cylinder; 16. Connecting pin; 17. Screw; 18. Sleeve. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1 to 3 This embodiment provides a modular lightweight hydraulic support device, including a first and second single-unit support arranged side by side. The top beams 1 of the two single-unit supports are connected by a top beam connecting device, and the bases 4 of the two single-unit supports are connected by a base connecting device to form a combined structure. This modular and detachable design makes the weight of each component very light during relocation, which is very convenient for transportation and installation. At the same time, when working, the two units can be manually controlled as one unit after being combined, which is very convenient.

[0032] In some possible embodiments, reference Figure 2 and Figure 3 The top beam connecting device comprises multiple sleeves 18, each fixedly mounted on the top beam 1 of one of the two individual supports. The sleeves 18 are arranged in pairs facing each other on the top beam 1 of the two individual supports, with the opposing sleeves 18 sharing a common central axis during installation. The opposing sleeves 18 are connected to each other by connecting pins 16, which are locked to the sleeves 18 by a locking mechanism. After locking by the locking mechanism, the top beams 1 of the two individual supports can be connected.

[0033] In some embodiments, continue to refer to 2 and Figure 3 The locking mechanism includes mounting through holes in the sleeves 18, mounting screw holes in the connecting pins 16, and screws 17. First, both ends of the connecting pins 16 are inserted into the two opposing sleeves 18 on the two top beams 1. Then, the two screws 17 pass through the mounting through holes in the two sleeves 18 and engage with the corresponding mounting screw holes on the connecting pins 16 to achieve position locking. A stable connection between the two top beams 1 is achieved through multiple connecting pins 16.

[0034] refer to Figure 1 The base connecting device includes lugs 8 fixedly mounted at one end of each of the two individual brackets. The two lugs 8 are secured to the mounting plate 7 using fasteners such as bolts. Through holes are provided at both ends of the mounting plate 7, and the two lugs 8 are secured to the mounting plate 7 by bolts or other fasteners passing through these through holes. This achieves the connection of the bases 4 of the two individual brackets.

[0035] A slot is provided below the top beam 1 for easy screwing in of screws 17. When it is necessary to fix the connecting pin 16, screws 17 are inserted into the mounting screw holes of the connecting pin 16 and tightened to achieve fixation. When it is necessary to disassemble, screws 17 are loosened and pulled out from the connecting pin 16, and the connection between the two lugs 8 and the mounting plate 7 is removed to achieve separation of the first single bracket and the second single bracket.

[0036] In some embodiments, reference Figure 1 and Figure 4 Dust suppression devices are installed on both sides of the combined hydraulic support. Each dust suppression device includes a housing 3, pipes 2, and nozzles 11. A water tank and a water pump are installed inside the housing 3. The water pump is connected to the water tank, and pipes 2 are connected to the water pump. Multiple nozzles 11 are installed on pipes 2. The nozzles 11 atomize and evenly spray water, effectively reducing dust concentration in coal mines and improving the working environment. The installation angle and position of the nozzles 11 can cover the areas requiring dust suppression, improving the dust suppression effect.

[0037] In some embodiments, reference Figures 4-6 The top beam 1 of the single support frame is an integral top beam with side guards 10, and the side guards 10 are tilted by a side guard tilting cylinder 15. A support cylinder 13 is rotatably connected to the base 4, and the top of the support cylinder 13 is connected to the bottom of the top beam 1. The lifting and lowering of the top beam 1 is controlled by the support cylinder 13 and the balance cylinder 14, and the consistency of movement of the two single supports is ensured by the top beam connecting device and the base connecting device.

[0038] In some embodiments, reference Figure 1 and Figure 6 A push-slide cylinder 12 is connected to the mounting plate 7 of the base connecting device. The two individual brackets share one push-slide cylinder 12. The push-slide and frame movement are achieved by the extension and retraction of the push-slide cylinder 12.

[0039] Reference Figures 2 to 4 A rear connecting rod 6 is rotatably connected to the rear of the base 4 of each individual support. The other end of the rear connecting rod 6 is rotatably connected to the support shield beam 9, which can effectively shield the coal mining operation space and prevent roof collapse. A front connecting rod 5 is hinged on the support shield beam 9. The front connecting rod 5, the rear connecting rod 6, the support shield beam 9 and the base 4 are hinged to each other to form a stable four-bar linkage. One end of the balance cylinder 14 is connected to the support shield beam 9 and the other end is connected to the bottom of the top beam 1.

[0040] When this embodiment is used normally, the first single support and the second single support are connected by the top beam connecting device and the base connecting device to form an integral structure. The lifting and lowering of the top beam 1 is controlled by the joint operation of the balance cylinder 14 and the support cylinder 13 to ensure the stability and load-bearing capacity of the support. The side protection tilting cylinder 15 controls the tilting of the side protection 10, and the side protection 10 can flexibly adjust its position to ensure effective protection of the coal wall during operation.

[0041] During operation, the dust suppression device will also be activated. Water in the water tank is pumped through pipeline 2 to nozzle 11 and sprayed into fine water mist to reduce the dust concentration in the coal mine and improve the working environment. When it is necessary to move the support, the combined hydraulic support can be separated by removing the screws of the top beam connecting device and the connecting bolts of the base connecting device, so that it can be moved away quickly.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined lightweight hydraulic support device, characterized in that: It includes a first single-unit support and a second single-unit support; the top beams of the first single-unit support and the second single-unit support are connected by a top beam connecting device, and the bases are connected by a base connecting device to form a combined structure; The top beam connecting device includes multiple sleeves, which are respectively fixedly mounted on the top beams of the two individual supports and aligned in pairs. Two opposing sleeves are connected to each other by a connecting pin, and the connecting pin and the sleeve are locked by a locking mechanism. The base connection device includes a mounting plate and lugs that are respectively fixedly installed at one end of the two individual support bases. The two lugs are respectively fixedly connected to the mounting plate to realize the connection between the two bases.

2. The combined lightweight hydraulic support equipment according to claim 1, characterized in that: The locking mechanism includes a mounting through hole on the sleeve and mounting screw holes at both ends of the connecting pin. The two ends of the connecting pin are respectively inserted into two opposite sleeves, and the locking is achieved by screws passing through the mounting through hole and threaded into the mounting screw hole.

3. The combined lightweight hydraulic support equipment according to claim 1, characterized in that: It also includes a dust suppression device fixedly installed on both sides of the hydraulic support. The dust suppression device includes a water tank, a water pump, pipelines and nozzles. The water pump is connected to the water tank and the water pump is connected to the nozzles through the pipelines.

4. The combined lightweight hydraulic support equipment according to claim 1, characterized in that: The front end of the top beam is hinged to a side guard, which is tilted by a side guard tilting cylinder.

5. The combined lightweight hydraulic support equipment according to claim 1, characterized in that: A push-slide cylinder is also connected to the mounting plate of the base connecting device. The push-slide cylinder is located in the space between the base of the first single bracket and the second single bracket.

6. The combined lightweight hydraulic support equipment according to claim 5, characterized in that: The mounting plate has mounting holes at both ends and in the middle. The two lugs are connected to the two mounting holes at both ends, and the piston rod end of the push-pull cylinder is connected to the mounting hole in the middle.

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