Joint pipeline of heightening system of coal mining machine

Abstract

The utility model provides a coal mining machine heightening system joint pipeline, which relates to the technical field of coal mining machines, and comprises a protective pipe and a connecting pipe, the connecting pipe is rotatably arranged at one end of the protective pipe, one end of the connecting pipe is provided with a transfer pipe, the transfer pipe is rotatably connected with at least four groups of joint pipes; an inner pipe is arranged in the protection pipe, and a flange is arranged at one end of the inner pipe; the flange is connected with the oil outlet of the multi-way reversing valve of the heightening pump box and communicated with the inner pipe, the inner pipe is communicated with the connecting pipe and the transfer pipe through the first metal hose, the transfer pipe is communicated with the connector pipe through the second metal hose, and the connector pipe is connected with a pipeline of a follow-up oil cylinder through the pipeline connector. The sealing piece replacement is simpler, more convenient and safer, the production influence is reduced, the efficiency is improved, and the safety risk that personnel enter the interior to replace the sealing piece is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal mining machine technology, and in particular to a joint pipeline of a coal mining machine height adjustment system. Background Technology

[0002] During normal production, the height adjustment system of the coal mining machine has many pipeline joints, and often there are problems such as pipe bursts, damaged seals and oil leaks. Due to the compact structure and small space of the height adjustment pump box, there are a series of difficulties such as U-shaped clips that cannot be pulled out and hinge bolts that cannot be disassembled with a wrench.

[0003] When replacing the pump, the height adjustment pump box needs to be pulled out from the outer compartment. Before pulling out the height adjustment pump box, all inlet and return high-pressure hoses must be removed. This requires processing from the skylight position of the outer compartment. These high-pressure hoses are generally fixed and numerous, connected to the oil outlet of the multi-way reversing valve of the height adjustment pump box. Due to the limited space and fixed hoses, the operation is complicated and inefficient, affecting production, increasing costs, and posing safety hazards. Therefore, this utility model proposes a joint pipeline for the height adjustment system of a coal mining machine to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a joint pipeline for a coal mining machine height adjustment system. During operation, this joint pipeline allows for simpler and safer sealing replacement by rotating the connecting pipe, causing the transfer pipe and its connecting pipe to rotate toward the skylight. This reduces production disruption, improves efficiency, and lowers the safety risks associated with personnel entering the interior to replace the sealing plates.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a joint pipeline of a coal mining machine height adjustment system, including a protective pipe and a connecting pipe, wherein the connecting pipe is rotatably disposed at one end of the protective pipe, and a transfer pipe is provided at one end of the connecting pipe, wherein a joint pipe is rotatably connected to the transfer pipe, and the joint pipe is provided with at least four sets.

[0006] The protective tube has an inner tube inside, and one end of the inner tube has a flange. The other end of the inner tube is connected to the connecting tube with a first metal flexible hose. The four sets of connector tubes and transfer tubes are all connected with a second metal flexible hose. The end of the connector tube away from the transfer tube is provided with a pipe joint.

[0007] A further improvement is that the flange is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the height adjustment pump box is located inside the outer compartment of the height adjustment pump box. A skylight is provided above the outer compartment of the height adjustment pump box, and the transfer pipe is located at the position of the skylight.

[0008] A further improvement is that: both sides of one end of the protective tube are provided with connecting arms, and the connecting arms are connected to the flange.

[0009] A further improvement is that the protective tube is provided with a reinforcing hoop inside, and there are multiple sets of reinforcing hoops, with the inner tube fixed inside the reinforcing hoop.

[0010] A further improvement is that: the protective tube is provided with first hinge ears on both sides of the end away from the flange, and the connecting tube is provided with a first hinge shaft rotatably connected to the first hinge ears at one end of both sides. The first hinge ears are provided with first limiting holes around the first hinge shaft, and multiple sets of first limiting holes are provided. The connecting tube is provided with first ball bearings that are adapted to the first limiting holes.

[0011] A further improvement is made in that: one end of the transfer tube is provided with a second hinge ear, and the second hinge ear is provided with four sets corresponding to the connector tube; the end of the connector tube away from the pipe connector is provided with a second hinge shaft that is rotatably connected to the second hinge ear; the second hinge ear is provided with a second limiting hole around the second hinge shaft, and the second limiting hole is provided with multiple sets; the connector tube is provided with a second ball that is adapted to the second limiting hole.

[0012] A further improvement is that an on / off valve is provided at one end of the connector tube near the second hinge lug.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model utilizes a flange to connect the oil outlet of the multi-way reversing valve of the height-adjusting pump box, connecting to the inner pipe. The inner pipe is connected to the connecting pipe and the transfer pipe through a first metal flexible hose. The transfer pipe is connected to the connector pipe through a second metal flexible hose. The connector pipe is connected to the pipeline of the subsequent oil cylinder through a pipeline connector. During operation, it is only necessary to rotate the connecting pipe so that the transfer pipe and its connector pipe rotate toward the skylight. This makes it easier and safer to replace the seal, reduces the impact on production, improves efficiency, and reduces the safety risk of personnel entering the interior to replace the seal.

[0015] 2. This utility model can connect the pipelines of four subsequent oil cylinders through at least four sets of connector pipes. Only one oil outlet of the multi-way reversing valve of the height adjustment pump box needs to be connected to the inner pipe. The connector pipe can be rotated to adjust the connection direction, further improving the convenience of operation, thereby reducing the time-consuming maintenance of phenomena such as pipe bursting, seal damage and oil leakage.

[0016] 3. When the connecting tube is rotated, the first ball can be matched with the first limiting hole at the corresponding position to fix the vertical angle of the connecting tube, the transfer tube and the connector tube. When the connector tube is rotated, the second ball can be matched with the second limiting hole at the corresponding position to fix the horizontal angle of the connector tube. The present invention has multiple functions. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the protective tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation position of this utility model.

[0020] The components include: 1. Protective pipe; 2. Connecting pipe; 3. Transfer pipe; 4. Joint pipe; 5. Inner pipe; 6. Flange; 7. First metal flexible hose; 8. Second metal flexible hose; 9. Pipe joint; 10. Height-adjustable pump box outer compartment; 11. Skylight; 12. Connecting arm; 13. Reinforcing hoop; 14. First hinge lug; 15. First hinge shaft; 16. First limiting hole; 17. First ball bearing; 18. Second hinge lug; 19. Second hinge shaft; 20. Second limiting hole; 21. Second ball bearing; 22. On / off valve. Detailed Implementation

[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0022] Example 1

[0023] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a joint pipeline for a coal mining machine height adjustment system, including a protective pipe 1 and a connecting pipe 2. The connecting pipe 2 is rotatably disposed at one end of the protective pipe 1, and a transfer pipe 3 is provided at one end of the connecting pipe 2. A joint pipe 4 is rotatably connected to the transfer pipe 3, and the joint pipe 4 is provided with at least four sets.

[0024] The protective pipe 1 has an inner pipe 5 inside, and one end of the inner pipe 5 has a flange 6. The other end of the inner pipe 5 is connected to the connecting pipe 2 by a first metal hose 7. Each of the four sets of connector pipes 4 and transfer pipes 3 is connected by a second metal hose 8. The end of the connector pipe 4 away from the transfer pipe 3 has a pipe connector 9. In use, the flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the inner pipe 5 is connected. The inner pipe 5 is connected to the connecting pipe 2 and the transfer pipe 3 through the first metal hose 7. The transfer pipe 3 is connected to the connector pipe 4 through the second metal hose 8. The connector pipe 4 is connected to the pipeline of the subsequent oil cylinder through the pipe connector 9. During operation, only the connecting pipe 2 needs to be rotated so that the transfer pipe 3 and the connector pipe 4 on it rotate toward the skylight 11. This makes it easier and safer to replace the seal, reduces the impact on production, improves efficiency, and reduces the safety risk of personnel entering the interior to replace the seal.

[0025] The flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the height adjustment pump box is located inside the outer compartment 10 of the height adjustment pump box. A skylight 11 is provided above the outer compartment 10 of the height adjustment pump box, and the transfer pipe 3 is located at the position of the skylight 11. In use, the flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the inner pipe 5 is connected. The inner pipe 5 is connected to the connecting pipe 2 and the transfer pipe 3 through the first metal hose 7. The transfer pipe 3 is connected to the connector pipe 4 through the second metal hose 8. The connector pipe 4 is connected to the pipeline of the subsequent oil cylinder through the pipeline connector 9. During operation, only the connecting pipe 2 needs to be rotated so that the transfer pipe 3 and the connector pipe 4 on it rotate toward the skylight 11, making it easier and safer to replace the seal.

[0026] Both sides of one end of the protective pipe 1 are provided with connecting arms 12, and the connecting arms 12 are connected to the flange 6. This reinforces the connection between the flange 6 and the inner pipe 5.

[0027] The protective tube 1 is equipped with a reinforcing hoop 13 inside, and multiple sets of reinforcing hoop 13 are provided. The inner tube 5 is fixed inside the reinforcing hoop 13. This improves the installation strength of the inner tube 5 and the protective tube 1.

[0028] Example 2

[0029] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a joint pipeline for a coal mining machine height adjustment system, including a protective pipe 1 and a connecting pipe 2. The connecting pipe 2 is rotatably disposed at one end of the protective pipe 1, and a transfer pipe 3 is provided at one end of the connecting pipe 2. A joint pipe 4 is rotatably connected to the transfer pipe 3, and the joint pipe 4 is provided with at least four sets.

[0030] The protective pipe 1 has an inner pipe 5 inside, and one end of the inner pipe 5 has a flange 6. The other end of the inner pipe 5 is connected to the connecting pipe 2 by a first metal hose 7. Each of the four sets of connector pipes 4 and transfer pipes 3 is connected by a second metal hose 8. The end of the connector pipe 4 away from the transfer pipe 3 has a pipe connector 9. In use, the flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the inner pipe 5 is connected. The inner pipe 5 is connected to the connecting pipe 2 and the transfer pipe 3 through the first metal hose 7. The transfer pipe 3 is connected to the connector pipe 4 through the second metal hose 8. The connector pipe 4 is connected to the pipeline of the subsequent oil cylinder through the pipe connector 9. During operation, only the connecting pipe 2 needs to be rotated so that the transfer pipe 3 and the connector pipe 4 on it rotate toward the skylight 11. This makes it easier and safer to replace the seal, reduces the impact on production, improves efficiency, and reduces the safety risk of personnel entering the interior to replace the seal.

[0031] The flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the height adjustment pump box is located inside the outer compartment 10 of the height adjustment pump box. A skylight 11 is provided above the outer compartment 10 of the height adjustment pump box, and the transfer pipe 3 is located at the position of the skylight 11. In use, the flange 6 is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the inner pipe 5 is connected. The inner pipe 5 is connected to the connecting pipe 2 and the transfer pipe 3 through the first metal hose 7. The transfer pipe 3 is connected to the connector pipe 4 through the second metal hose 8. The connector pipe 4 is connected to the pipeline of the subsequent oil cylinder through the pipeline connector 9. During operation, only the connecting pipe 2 needs to be rotated so that the transfer pipe 3 and the connector pipe 4 on it rotate toward the skylight 11, making it easier and safer to replace the seal.

[0032] The protective pipe 1 has first hinge ears 14 on both sides of the end away from the flange 6. The connecting pipe 2 has first hinge shafts 15 rotatably connected to the first hinge ears 14 at one end of each side. The first hinge ears 14 have first limiting holes 16 around the first hinge shafts 15, and there are multiple sets of first limiting holes 16. The connecting pipe 2 has first ball bearings 17 that are adapted to the first limiting holes 16. The transfer pipe 3 has a second hinge ear 18 at one end, and there are four sets of second hinge ears 18 corresponding to the connector pipe 4. The connector pipe 4 has a second hinge shaft 19 rotatably connected to the second hinge ears 18 at the end away from the pipe connector 9. The second hinge ears 18 have second limiting holes 20 around the second hinge shafts 19, and there are multiple sets of second limiting holes 20. The connector pipe 4 has second ball bearings 21 that are adapted to the second limiting holes 20. When rotating the connecting tube 2, the first ball 17 is matched with the first limiting hole 16 at the corresponding position, which can fix the up and down angles of the connecting tube 2, the transfer tube 3 and the connector tube 4. When rotating the connector tube 4, the second ball 21 is matched with the second limiting hole 20 at the corresponding position, which can fix the left and right angles of the connector tube 4, thus providing multiple functions.

[0033] The connector pipe 4 is provided with an on / off valve 22 at one end near the second hinge lug 18. The pipelines of four subsequent oil cylinders are connected through at least four sets of connector pipes 4. Only one oil outlet of the multi-way reversing valve of the height adjustment pump box needs to be connected to the inner pipe 5. The opening and closing of each set of connector pipes 4 can be adjusted separately through the on / off valve 22.

[0034] The coal mining machine's height adjustment system uses flange 6 to connect to the oil outlet of the multi-way reversing valve in the height adjustment pump box, and connects to the inner pipe 5. The inner pipe 5 connects to the connecting pipe 2 and the transfer pipe 3 through the first metal hose 7. The transfer pipe 3 connects to the connector pipe 4 through the second metal hose 8. The connector pipe 4 connects to the pipeline of the subsequent oil cylinder through the pipeline connector 9. During operation, only the connecting pipe 2 needs to be rotated so that the transfer pipe 3 and the connector pipe 4 on it rotate toward the skylight 11. This makes it easier and safer to replace the seal, reduces the impact on production, improves efficiency, and reduces the safety risk of personnel entering the interior to replace the seal. Each unit of this device can connect to the pipelines of four subsequent oil cylinders through at least four sets of connector pipes 4. Only the inner pipe 5 needs to be connected to one oil outlet of the multi-way reversing valve in the height adjustment pump box. The connector pipe 4 can be rotated to adjust the connection direction, further improving the convenience of operation, thereby reducing the time-consuming maintenance caused by pipe bursts, seal damage, and oil leakage. Meanwhile, when rotating the connecting tube 2, the first ball 17 is matched with the first limiting hole 16 at the corresponding position, which can fix the up and down angles of the connecting tube 2, the transfer tube 3 and the connector tube 4. When rotating the connector tube 4, the second ball 21 is matched with the second limiting hole 20 at the corresponding position, which can fix the left and right angles of the connector tube 4, thus providing multiple functions.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A joint pipeline for a coal mining machine height adjustment system, comprising a protective pipe (1) and a connecting pipe (2), characterized in that: The connecting pipe (2) is rotatably disposed at one end of the protective pipe (1), and a transfer pipe (3) is provided at one end of the connecting pipe (2). A connector pipe (4) is rotatably connected to the transfer pipe (3), and at least four sets of connector pipes (4) are provided. The protective pipe (1) has an inner pipe (5) inside, and a flange (6) is provided at one end of the inner pipe (5). A first metal hose (7) is connected between the other end of the inner pipe (5) and the connecting pipe (2). A second metal hose (8) is connected between the four sets of connector pipes (4) and the transfer pipe (3). A pipe connector (9) is provided at the end of the connector pipe (4) away from the transfer pipe (3).

2. The joint pipeline of the coal mining machine height adjustment system according to claim 1, characterized in that: The flange (6) is used to connect to the oil outlet of the multi-way reversing valve of the height adjustment pump box, and the height adjustment pump box is located inside the outer compartment (10) of the height adjustment pump box. A skylight (11) is provided above the outer compartment (10) of the height adjustment pump box, and the transfer pipe (3) is located at the position of the skylight (11).

3. The joint pipeline of the coal mining machine height adjustment system according to claim 1, characterized in that: The protective tube (1) has connecting arms (12) on both sides of one end, and the connecting arms (12) are connected to the flange (6).

4. The joint pipeline of the coal mining machine height adjustment system according to claim 3, characterized in that: The protective tube (1) is provided with a reinforcing hoop (13) inside, and the reinforcing hoop (13) is provided in multiple sets. The inner tube (5) is fixed inside the reinforcing hoop (13).

5. The joint pipeline of the coal mining machine height adjustment system according to claim 1, characterized in that: The protective tube (1) is provided with first hinge ears (14) on both sides of the end away from the flange (6). The connecting tube (2) is provided with first hinge shafts (15) that are rotatably connected to the first hinge ears (14) at one end of both sides. The first hinge ears (14) are provided with first limiting holes (16) around the first hinge shafts (15), and there are multiple sets of first limiting holes (16). The connecting tube (2) is provided with first ball bearings (17) that are adapted to the first limiting holes (16).

6. The joint pipeline of the coal mining machine height adjustment system according to claim 1, characterized in that: One end of the transfer tube (3) is provided with a second hinge ear (18), and the second hinge ear (18) is provided with four sets corresponding to the connector tube (4). The end of the connector tube (4) away from the pipe connector (9) is provided with a second hinge shaft (19) that is rotatably connected to the second hinge ear (18). The second hinge ear (18) is provided with a second limiting hole (20) around the second hinge shaft (19), and the second limiting hole (20) is provided with multiple sets. The connector tube (4) is provided with a second ball (21) that is compatible with the second limiting hole (20).

7. The joint pipeline of the coal mining machine height adjustment system according to claim 6, characterized in that: An on / off valve (22) is provided at one end of the connector tube (4) near the second hinge ear (18).

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