Quick hydraulic support pushing cylinder fixing pin device under narrow space condition

Abstract

The utility model discloses a kind of quick hydraulic support pushing oil cylinder fixing pin devices under narrow space condition, it is related to hydraulic support pushing oil cylinder dismounting technical field, including hand pole, connecting rod and galvanized combined sleeve, hand pole one end below is equipped with connecting rod, connecting rod lower end detachably installed with galvanized combined sleeve, galvanized combined sleeve is composed of multiple hollow galvanized pipes of decreasing diameter;The utility model device can be realized by using the working principle of pushing oil cylinder, through the hollow galvanized pipe of pin taking device, the pin that needs to be taken out is placed in pin hole, pushing oil cylinder does retract action, pin is processed pin taking device, then the pin that needs to be taken out can be taken out through pin taking device, operating personnel also do not need to be taken fixed pin on pushing oil cylinder, solve the hidden danger of small space hammering operation, avoid the risk of personnel operation in the environment of narrow space of support pushing oil cylinder, to improve work efficiency, reduce risk.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic support pushing cylinder disassembly and assembly technology, and in particular to a device for quickly removing the fixing pin of the hydraulic support pushing cylinder under narrow space conditions. Background Technology

[0002] Hydraulic supports are the core support equipment in fully mechanized coal mining faces. Powered by high-pressure emulsion, they drive actuators such as columns and jacks through a hydraulic control system to perform actions such as raising, lowering, moving, and pushing the conveyor belt, forming a dynamic support system. Their technological development profoundly impacts the efficiency, safety, and resource recovery rate of coal mining. Through a cyclical action of "lowering the column → moving the column → raising the column → pushing the conveyor belt," hydraulic supports automatically adjust their position as the working face advances, continuously supporting the roof.

[0003] The tail of the hydraulic support pushing cylinder is fixed to the tail of the rear push rod by the pushing cylinder large pin, pressure block, and pressure block pin. The position is at the bottom middle of the support. When removing the pressure block pin, the pressure block pin is located below the rear column. In the traditional way, when removing the pin, the operator must lie prone to reach it. The working space is narrow, making it difficult and time-consuming to remove the pressure block pin. Therefore, this utility model proposes a device for quickly removing the fixing pin of the hydraulic support pushing cylinder under narrow space conditions to solve the shortcomings of the existing technology. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a device for quickly removing the fixing pin of a hydraulic support push cylinder in confined spaces. This device utilizes the working principle of the push cylinder. A hollow galvanized pipe of the pin-removing device is placed at the opening of the pin to be removed. The push cylinder then retracts, and the pin, after being processed by the pin-removing device, can be easily removed. This eliminates the need for workers to lie on the push cylinder to remove the fixing pin, thus solving the safety hazards of hammering in confined spaces and avoiding the risks associated with working in such environments. This improves work efficiency and reduces risks.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for quickly retrieving a hydraulic support push cylinder fixing pin in confined spaces includes a hand handle, a connecting rod, and a galvanized combined sleeve. A connecting rod is located at the lower end of one end of the hand handle, and a galvanized combined sleeve is detachably installed at the lower end of the connecting rod. The galvanized combined sleeve is composed of multiple hollow galvanized tubes with decreasing diameters. A threaded hole is located in the middle section of the outermost hollow galvanized tube. A threaded post is located at the lower end of the connecting rod, and the threaded post connects to the threaded hole. Positioning grooves are located on the inner walls of the multiple hollow galvanized tubes, and positioning blocks are located on the outer walls of the innermost multiple hollow galvanized tubes. The positioning blocks are fixed to the positioning grooves by fixing bolts.

[0007] The handheld rod includes a splicing rod and a fixing rod. One end of the fixing rod is welded to one end of the connecting rod. The splicing rod is composed of multiple short tubes spliced ​​together.

[0008] A further improvement is that: one end of the short tube is provided with a connecting post, and the other end of the short tube and one end of the fixing rod are both provided with connecting holes. Adjacent short tubes and the short tube and one end of the fixing rod are threadedly connected and fixed through the connecting post and the connecting hole.

[0009] A further improvement is that a connecting ring is provided on the outer side of the fixing rod, and the connecting ring is threadedly connected to the outer wall of the fixing rod.

[0010] A further improvement is that the connecting ring is provided with storage holes, the number of storage holes is adapted to the number of splicing rods, and the diameter of the storage holes is adapted to the diameter of the splicing rods.

[0011] A further improvement is that the short tube has an external thread on its outer wall, the length of which is adapted to the depth of the receiving hole, and the short tube is connected to the receiving hole through the external thread.

[0012] A further improvement is that a limiting ring is provided on the outer wall of the fixing rod below the connecting ring, and the outer diameter of the limiting ring is larger than the inner diameter of the connecting ring.

[0013] The beneficial effects of this utility model are as follows: This utility model, by setting up a pin-removing device composed of a hand-held rod, a connecting rod, and a galvanized combined sleeve, can realize the working principle of the push cylinder. The hollow galvanized tube of the pin-removing device is placed at the pin opening to be removed. The push cylinder retracts, and the pin is processed by the pin-removing device. Then, the pin to be removed can be taken out by the pin-removing device. The operator does not need to lie on the push cylinder to remove the fixed pin, which solves the hidden danger of hammering in small spaces and avoids the risk of personnel working in the narrow space of the support push cylinder. Thus, the work efficiency is improved, the risk is reduced, and the effect of safety and efficiency is achieved.

[0014] The device of this utility model is detachable in many places, which has the advantage of convenient storage. The hollow galvanized pipe can be selected as needed and can be adapted to the fixing pins of different sizes, which is highly flexible. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the splicing rod structure of this utility model;

[0017] Figure 3 This is a schematic diagram showing the disassembled installation structure of the galvanized combined sleeve and connecting rod of this utility model.

[0018] The components include: 1. Handheld rod; 101. Splicing rod; 102. Fixing rod; 2. Connecting rod; 3. Galvanized combination sleeve; 4. Hollow galvanized pipe; 5. Threaded hole; 6. Threaded post; 7. Positioning groove; 8. Positioning block; 9. Fixing bolt; 10. Short pipe; 11. Connecting post; 12. Connecting hole; 13. Connecting ring; 14. Storage hole; 15. External thread; 16. Limiting ring. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] according to Figure 1-3 As shown, this embodiment proposes a device for quickly retrieving the hydraulic support cylinder fixing pin under confined space conditions, including a handheld rod 1, a connecting rod 2, and a galvanized combined sleeve 3. The connecting rod 2 is provided at the lower end of one end of the handheld rod 1, and the galvanized combined sleeve 3 is detachably installed at the lower end of the connecting rod 2. The galvanized combined sleeve 3 is composed of multiple hollow galvanized tubes 4 with decreasing diameters. A threaded hole 5 is provided in the middle section of the outermost hollow galvanized tube 4. A threaded post 6 is provided at the lower end of the connecting rod 2, and the threaded post 6 is connected to the threaded hole 5. A positioning groove 7 is provided on the inner wall of the multiple hollow galvanized tubes 4, and a positioning block 8 is provided on the outer wall of the multiple inner hollow galvanized tubes 4. The positioning block 8 is fixed to the positioning groove 7 by a fixing bolt 9. The handheld rod 1 includes a splicing rod 101 and a fixing rod 102. One end of the fixing rod 102 is welded and fixed to one end of the connecting rod 2. The splicing rod 101 is composed of multiple short tubes 10 spliced ​​together.

[0022] When this utility model's pin-removing device is used in conjunction with a pushing cylinder, first retract the pushing cylinder, then pull the tail of the rear push rod to the direction closest to the coal wall, then remove the front part of the pushing cylinder and extend the pushing cylinder (the extension distance should be greater than the length of the pin in the hollow galvanized pipe of the pin-removing device). Place a pin in the hollow galvanized pipe 4 of this utility model's pin-removing device, with one end abutting against the pressure block pin and the other end abutting against the outer shell of the pushing cylinder. Then, supply fluid to the pushing cylinder to retract it, and the outer shell of the pushing cylinder will move towards the goaf side, thereby applying a pushing force to the pin to remove the pressure block pin.

[0023] One end of the short tube 10 is provided with a connecting post 11, and the other end of the short tube 10 and one end of the fixing rod 102 are both provided with connecting holes 12. Adjacent short tubes 10 and one end of the short tube 10 and the fixing rod 102 are threadedly connected and fixed by the connecting post 11 and the connecting hole 12. The length of the splicing rod 101 of this utility model can be adjusted by combining a corresponding number of short tubes 10 as needed.

[0024] Example 2

[0025] according to Figure 1-3 As shown, this embodiment proposes a device for quickly retrieving the hydraulic support cylinder fixing pin under confined space conditions, including a handheld rod 1, a connecting rod 2, and a galvanized combined sleeve 3. The connecting rod 2 is provided at the lower end of one end of the handheld rod 1, and the galvanized combined sleeve 3 is detachably installed at the lower end of the connecting rod 2. The galvanized combined sleeve 3 is composed of multiple hollow galvanized tubes 4 with decreasing diameters. A threaded hole 5 is provided in the middle section of the outermost hollow galvanized tube 4. A threaded post 6 is provided at the lower end of the connecting rod 2, and the threaded post 6 is connected to the threaded hole 5. A positioning groove 7 is provided on the inner wall of the multiple hollow galvanized tubes 4, and a positioning block 8 is provided on the outer wall of the multiple inner hollow galvanized tubes 4. The positioning block 8 is fixed to the positioning groove 7 by a fixing bolt 9. The handheld rod 1 includes a splicing rod 101 and a fixing rod 102. One end of the fixing rod 102 is welded and fixed to one end of the connecting rod 2. The splicing rod 101 is composed of multiple short tubes 10 spliced ​​together.

[0026] A connecting ring 13 is provided on the outer side of the fixing rod 102, and the connecting ring 13 is threadedly connected to the outer wall of the fixing rod 102. The connecting ring 13 has receiving holes 14, the number of which matches the number of splicing rods 101, and the diameter of the receiving holes 14 matches the diameter of the splicing rods 101. The outer wall of the short tube 10 has external threads 15, the length of which matches the depth of the receiving holes 14, and the short tube 10 is connected to the receiving holes 14 through the external threads 15. A limiting ring 16 is provided on the outer wall of the fixing rod 102 below the connecting ring 13, and the outer diameter of the limiting ring 16 is larger than the inner diameter of the connecting ring 13. This utility model, by setting a connecting ring 13 and setting storage holes 14 on the connecting ring 13 in a number that matches the number of short tubes 10, allows the splicing rod 101 to be disassembled into multiple short tubes 10, and then the multiple short tubes 10 to be connected to the storage holes 14 through external threads 15, so that the multiple short tubes 10 can be stored on the outside of the fixing rod 102 for easy access and assembly next time. The setting of the limiting ring 16 can limit the installation position of the connecting ring 13.

[0027] This utility model features a pin-removing device consisting of a handheld rod 1, a connecting rod 2, and a galvanized composite sleeve 3. Utilizing the working principle of a push-moving cylinder, the device places the hollow galvanized tube 4 of the pin-removing device at the opening of the pin to be removed. The push-moving cylinder then retracts, and the pin, after being processed by the pin-removing device, can be easily removed. This eliminates the need for workers to lie on the push-moving cylinder to remove the pin, thus solving the safety hazards associated with hammering in confined spaces and avoiding the risks of working in the narrow space of the support push-moving cylinder. This improves work efficiency, reduces risks, and achieves a safe and efficient result.

[0028] The device of this utility model is detachable in many places, which has the advantage of convenient storage. The hollow galvanized pipe 4 can be selected as needed and can be adapted to the fixing pins of different sizes, which is highly flexible.

[0029] 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 device for quickly removing the fixing pin of a hydraulic support push cylinder under confined space conditions, characterized in that: The device includes a handheld rod (1), a connecting rod (2), and a galvanized combination sleeve (3). The handheld rod (1) has a connecting rod (2) at one end. The galvanized combination sleeve (3) is detachably installed at the lower end of the connecting rod (2). The galvanized combination sleeve (3) is composed of multiple hollow galvanized pipes (4) with decreasing diameters. The hollow galvanized pipes (4) have threaded holes (5). The connecting rod (2) has a threaded post (6) at the lower end. The threaded post (6) is connected to the threaded hole (5). The inner walls of the multiple hollow galvanized pipes (4) have positioning grooves (7). The outer walls of the multiple hollow galvanized pipes (4) have positioning blocks (8). The positioning blocks (8) are fixed to the positioning grooves (7) by fixing bolts (9). The handheld rod (1) includes a splicing rod (101) and a fixing rod (102). One end of the fixing rod (102) is welded and fixed to one end of the connecting rod (2). The splicing rod (101) is composed of multiple short tubes (10) spliced ​​together.

2. The device for fixing the pin of the hydraulic cylinder of the hydraulic support according to claim 1, characterized in that: One end of the short tube (10) is provided with a connecting post (11), and the other end of the short tube (10) and one end of the fixing rod (102) are provided with connecting holes (12). The adjacent short tubes (10) and the short tubes (10) and the fixing rod (102) are connected and fixed by the connecting post (11) and the connecting hole (12) through threaded connection.

3. The device for fixing the pin of the hydraulic cylinder of the hydraulic support according to claim 1, characterized in that: The fixing rod (102) is provided with a connecting ring (13) on the outside, and the connecting ring (13) is threadedly connected to the outer wall of the fixing rod (102).

4. The device for quickly removing the hydraulic support push cylinder fixing pin under confined space conditions according to claim 3, characterized in that: The connecting ring (13) is provided with a storage hole (14). The number of storage holes (14) is adapted to the number of splicing rods (101), and the diameter of the storage hole (14) is adapted to the diameter of the splicing rod (101).

5. The device for fixing the pin of the hydraulic cylinder of the hydraulic support according to claim 4, characterized in that: The short tube (10) has an external thread (15) on its outer wall. The length of the external thread (15) is adapted to the depth of the receiving hole (14). The short tube (10) is connected to the receiving hole (14) through the external thread (15).

6. The device for fixing the pin of the hydraulic cylinder of the hydraulic support according to claim 3, characterized in that: A limiting ring (16) is provided on the outer wall of the fixing rod (102) below the connecting ring (13), and the outer diameter of the limiting ring (16) is larger than the inner diameter of the connecting ring (13).

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