Hydraulic support roof timber internal pipeline limiting and fixing device

By combining mounting and fixing components, the stress concentration and space occupation problems of the internal pipeline fixing device of the hydraulic support top beam are solved, achieving high-precision positioning, reducing wear and improving assembly efficiency, and is suitable for underground pipeline management.

CN224592163UActive Publication Date: 2026-08-04YANGQUAN HUAYUE MASCH CO LTD
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Patent Information

Application Number
CN202522199156.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-08-04
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

Traditional hydraulic support beam internal pipeline fixing devices suffer from stress concentration damage to pipelines, large space occupation, and chaotic management.

Method used

It adopts a combination structure of installation components, limiting components, and fixing components, including installation cylinder, limiting pad, embedding block, connecting plate and fixing bolts. Through standardized fastening interface and guide slide rail, it realizes the coordinated positioning and rapid deployment of multiple devices. Combined with interference fit and stepped load-bearing structure, it drives the elimination of assembly gaps and uniform stress distribution. Multifunctional fasteners are used to achieve fastening, positioning and stacking guidance, ensuring the coaxiality and connection reliability of pipelines.

Benefits of technology

It achieves millimeter-level positioning accuracy for pipelines, reduces wear and metal fatigue, improves assembly efficiency and storage space utilization, and is suitable for convenient operation and intelligent management in confined underground spaces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline management discloses a hydraulic support roof beam internal pipeline spacing fixing device, including installation component, installation component includes mounting bracket, the inside of mounting bracket is provided with installation cylinder, the inside of mounting bracket is provided with embedding groove. The utility model through the threaded fastening mechanism and guide rail stack structure operation of fixed assembly, drive assembly efficiency promotion and the effect of storage space intensification produce, the standardized interface design makes different specifications installation component can realize quick interchange, cooperation triangle support system's mechanical distribution characteristics, ensure the single person convenient operation in the narrow space in pit, can stack storage function breaks through the limitation of traditional loose piece management, realizes multilevel stable stacking through the pilot action of spacing block, especially suitable for the emergency spare parts management demand of mine equipment, this kind of modular design concept not only reduces the field maintenance complexity, also provides the physical basis for intelligent inventory management system.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline management technology, and in particular to a limiting and fixing device for the internal pipeline of a hydraulic support top beam. Background Technology

[0002] As coal mining extends to deeper levels and the automation of fully mechanized mining faces develops, the hydraulic supports are frequently started and stopped under high-intensity periodic loads. Therefore, it is necessary to treat the high-pressure pipelines densely arranged inside the top beam for vibration isolation, positioning and stress dispersion. This requires the use of pipeline limiting and fixing devices. In practical use, similar pipe limiting and fixing devices still have many defects, such as: traditional fixing devices use clamp-type fasteners which are prone to stress concentration and damage to the pipes; at the same time, the storage of spare parts for traditional fixing devices takes up too much space and is chaotic to manage. Therefore, it is necessary to design a pipe limiting and fixing device inside the hydraulic support top beam. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a limiting and fixing device for the internal pipeline of a hydraulic support top beam.

[0004] This utility model is achieved using the following technical solution: a hydraulic support top beam internal pipeline limiting and fixing device, including an installation assembly, the installation assembly including an installation frame, the installation frame having an installation cylinder inside, the installation frame having an embedding groove inside, and connecting frames fixedly connected to both sides of the outer surface of the installation frame, and further including: A limiting component, the limiting component including a limiting pad inserted into the mounting cylinder, the top of the limiting pad having a mounting groove; A fixing component, the fixing component including a connecting plate threadedly connected to the top of the limiting pad by fixing bolts, the bottom of the connecting plate being provided with a mounting block that matches the mounting groove.

[0005] As a further improvement to the above solution, the connecting frame has mounting holes inside, and a guide rail is fixedly connected to the bottom of the mounting frame.

[0006] Through the above technical solutions, the standardized fastening interface and guide rail structure enable multi-device collaborative positioning and rapid deployment. The precise machining of the mounting holes ensures the interchangeability of different batches of products, while the guide rail provides a reference axis for modular assembly.

[0007] As a further improvement to the above solution, an embedding block is inserted into the inside of the embedding groove, and the embedding block is fixedly connected to the outer surface of the limiting pad.

[0008] Through the above technical solution, the structure operates by fine-tuning compensation through interference fit, which leads to the elimination of assembly gaps and uniform stress distribution. This design allows for on-site correction of manufacturing tolerances, ensuring that the coaxiality of the limit system and pipeline reaches the ideal state.

[0009] As a further improvement to the above solution, a mounting block is inserted into the inside of the mounting slot, and a fixing plate is fixedly connected to the top of the mounting block.

[0010] Through the above technical solutions, the operation of the stepped load-bearing structure optimizes the load transfer path and disperses local stress. The mechanical distribution of the multi-layer board transforms single-point stress into surface contact support, thereby improving the overall impact resistance.

[0011] As a further improvement to the above solution, a connecting plate is fixedly connected to the top of the fixing plate, and a fixing bolt is connected to the internal thread of the connecting plate.

[0012] Through the above technical solution, the adjustable fastening mechanism enables the controllable application of preload and provides anti-loosening protection. The self-locking characteristics of the thread, combined with elastic deformation compensation, ensure the reliability of the connection under vibration.

[0013] As a further improvement to the above solution, the bottom thread of the fixing bolt is connected to the inside of the mounting hole, and a limit block is fixedly connected at the center of the top of the connecting plate.

[0014] Through the above technical solution, the structural operation of the multifunctional fastener promotes the effect of strengthening spatial constraints and expanding functions. A single part can simultaneously achieve the triple functions of fastening, positioning and stacking guidance, thereby reducing the number of parts.

[0015] As a further improvement to the above solution, the limiting block is matched with the guide rail, and the limiting block is slidably installed inside the guide rail.

[0016] Through the above technical solution, the operation of the precision guiding mechanism can improve the accuracy of linear motion and prevent cumulative errors.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model operates through a combination structure of mounting cylinder, embedded block and limiting pad, which leads to the effect of limiting the directional displacement of the pipeline and absorbing vibration energy. The design uses a fitting to achieve millimeter-level positioning accuracy, and the limiting pad made of elastic material forms a buffer layer to effectively resolve the mechanical impact caused by pressure fluctuations in the hydraulic system. This combination of rigid limiting and flexible protection not only prevents the propagation of microcracks caused by metal fatigue, but also avoids wear caused by direct friction between the pipeline and the inner wall of the top beam, significantly extending the service life of the pipeline.

[0018] This invention utilizes a threaded fastening mechanism for fixed components and a stacking structure for guide rails to improve assembly efficiency and increase storage space. The standardized interface design allows for quick interchange of different specifications of installation components. Combined with the mechanical distribution characteristics of the triangular support system, it ensures convenient operation by a single person in confined underground spaces. The stackable storage function breaks through the limitations of traditional loose parts management. The guiding action of the limit blocks enables multi-level stable stacking, making it particularly suitable for the emergency spare parts management needs of mining equipment. This modular design concept not only reduces the complexity of on-site maintenance but also provides a physical basis for an intelligent inventory management system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is a bottom view of the overall structure of this utility model; Figure 4 This is a schematic diagram of the limiting component structure of this utility model; Figure 5 This is a schematic diagram of the fixing component structure of this utility model.

[0020] Explanation of key symbols: 1. Mounting components; 101. Mounting bracket; 102. Mounting cylinder; 103. Connecting bracket; 104. Mounting hole; 105. Embedded groove; 106. Guide rail; 2. Limiting components; 201. Embedded block; 202. Limiting pad; 203. Mounting groove; 3. Fixing components; 301. Mounting block; 302. Fixing plate; 303. Connecting plate; 304. Limiting block; 305. Fixing bolt. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] Example: Please combine Figure 1-5 This embodiment of a hydraulic support top beam internal pipeline limiting and fixing device includes a mounting assembly 1, which includes a mounting frame 101, an mounting cylinder 102 inside the mounting frame 101, an embedding groove 105 inside the mounting frame 101, and connecting frames 103 fixedly connected to both sides of the outer surface of the mounting frame 101. It also includes: Limiting component 2 includes a limiting pad 202 inserted into the mounting cylinder 102, and the top of the limiting pad 202 is provided with a mounting groove 203; The fixing component 3 includes a connecting plate 303 that is threadedly connected to the top of the limiting pad 202 by a fixing bolt 305, and the bottom of the connecting plate 303 is provided with a mounting block 301 that matches the mounting groove 203.

[0023] The connecting bracket 103 has a mounting hole 104 inside, and the bottom of the mounting bracket 101 is fixedly connected to a guide rail 106.

[0024] An insert block 201 is inserted into the inside of the insert groove 105, and the insert block 201 is fixedly connected to the outer surface of the limiting pad 202.

[0025] The embedding block 201 is precisely inserted into the matching embedding groove 105. At this time, the limiting pad 202 forms the first protective barrier by tightly fitting together, effectively constraining the radial displacement of the pipeline and absorbing vibration impact. In the fixing stage, the mounting block 301 is pushed into the corresponding mounting groove 203.

[0026] An installation block 301 is inserted into the inside of the installation slot 203, and a fixing plate 302 is fixedly connected to the top of the installation block 301.

[0027] A connecting plate 303 is fixedly connected to the top of the fixing plate 302, and a fixing bolt 305 is threadedly connected to the inside of the connecting plate 303.

[0028] The operator screws the fixing bolt 305 into the preset mounting hole 104 of the connecting bracket 103. The axial force generated by the thread engagement achieves a rigid connection of the three-layer structure. The mounting cylinder 102, the limiting pad 202 and the fixing component 3 form a stable triangular support system. This graded fixing method ensures assembly accuracy and facilitates disassembly and maintenance.

[0029] The bottom thread of the fixing bolt 305 is connected to the inside of the mounting hole 104, and the limiting block 304 is fixedly connected at the center of the top of the connecting plate 303.

[0030] The limiting block 304 is matched with the guide rail 106, and the limiting block 304 is slidably installed inside the guide rail 106.

[0031] Another identical device, the limiting block 304, can slide and embed along the guide rail 106, allowing multiple installation components 1 to be stacked and stored in an orderly manner. This stackable design not only saves storage space but also achieves tool-based management through standardized interfaces, making it particularly suitable for spare parts management needs in downhole operating environments.

[0032] The implementation principle of the hydraulic support top beam internal pipeline limiting and fixing device in this application embodiment is as follows: First, the internal pipeline to be protected is placed into the internal space of the mounting cylinder 102. Then, the embedding block 201 is precisely inserted into the matching embedding groove 105. At this time, the limiting pad 202 forms the first protective barrier through tight fit, effectively constraining the radial displacement of the pipeline and absorbing vibration impact. In the fixing stage, the mounting block 301 is pushed into the corresponding mounting groove 203. The internal thread hole on its top connecting plate 303 and the fixing bolt 305 form a fastening unit. The operator screws the fixing bolt 305 into the preset mounting hole 104 of the connecting frame 103. The axial force generated by the thread engagement realizes the rigid connection of the three-layer structure. The mounting cylinder 102, the limiting pad 202, and the fixing component 3 form a stable triangular support system. This hierarchical fixing method ensures assembly accuracy and facilitates disassembly and maintenance. When the equipment is not in operation, that is, when there are no pipelines in the mounting cylinder 102 and it is not installed to the hydraulic support, another limiting block 304 of the same device can slide and embed along the guide rail 106, so that multiple mounting components 1 can be stacked and stored in an orderly manner. This stackable design not only saves storage space, but also realizes tool management through standardized interfaces. It is particularly suitable for the spare parts management needs of the downhole working environment. All components of the entire system are precision machined to ensure interchangeability. The key load-bearing parts adopt a reinforced rib structure design to ensure reliable performance under complex working conditions.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A hydraulic support top beam internal pipeline limiting and fixing device, comprising an installation assembly (1), the installation assembly (1) comprising an installation frame (101), the installation frame (101) having an installation cylinder (102) inside, the installation frame (101) having an embedding groove (105) inside, and connecting frames (103) fixedly connected to both sides of the outer surface of the installation frame (101), characterized in that, Also includes: The limiting component (2) includes a limiting pad (202) inserted into the mounting cylinder (102), and the top of the limiting pad (202) is provided with a mounting groove (203). The fixing component (3) includes a connecting plate (303) that is threaded to the top of the limiting pad (202) by a fixing bolt (305), and the bottom of the connecting plate (303) is provided with a mounting block (301) that matches the mounting groove (203).

2. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 1, characterized in that: The connecting frame (103) has an installation hole (104) inside, and the bottom of the mounting frame (101) is fixedly connected to a guide rail (106).

3. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 1, characterized in that: An embedding block (201) is inserted into the inside of the embedding groove (105), and the embedding block (201) is fixedly connected to the outer surface of the limiting pad (202).

4. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 1, characterized in that: An installation block (301) is inserted into the inside of the installation slot (203), and a fixing plate (302) is fixedly connected to the top of the installation block (301).

5. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 4, characterized in that: The top of the fixing plate (302) is fixedly connected to the connecting plate (303), and the connecting plate (303) is internally threaded with fixing bolts (305).

6. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 5, characterized in that: The bottom thread of the fixing bolt (305) is connected to the inside of the mounting hole (104), and the limiting block (304) is fixedly connected at the center of the top of the connecting plate (303).

7. The hydraulic support top beam internal pipeline limiting and fixing device as described in claim 6, characterized in that: The limiting block (304) is matched with the guide rail (106), and the limiting block (304) is slidably installed inside the guide rail (106).