Wear-resistant guide sleeve device of hydraulic support stand column cylinder body

Abstract

The utility model provides a wear-resisting guide sleeve device of a hydraulic support stand column cylinder body, which belongs to the technical field of hydraulic supports and comprises a shell assembly, a shell, a supporting piece arranged in the middle of the side wall of the shell and an edge strip arranged on the side wall of the supporting piece, and the end part of the edge strip is fixedly connected to the side wall of the shell; and the guide assembly comprises an outer sleeve inserted in the center of the shell, an inner sleeve clamped on the inner side wall of the outer sleeve, and a ball rotationally mounted on the side wall of the inner sleeve. The hydraulic support has the advantages that sliding friction is changed into rolling friction through the balls, the abrasion degree is reduced, meanwhile, the accuracy of movement of the stand column cylinder body is guaranteed through an accurate guide structure, and the overall working performance of the hydraulic support is improved. Due to the special connecting structure of the edge strips and the supporting pieces, stress concentration is reduced, the strength and durability of the shell assembly are enhanced, and it is guaranteed that the whole device can stably operate for a long time under complex working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic support technology, specifically relating to a wear-resistant guide sleeve device for the cylinder body of a hydraulic support column. Background Technology

[0002] In modern underground operations such as coal mining, hydraulic supports play a crucial role as key equipment for ensuring safe and efficient production. The column cylinder of the hydraulic support is its core component for support and load-bearing, and it frequently withstands enormous pressure and complex mechanical movements.

[0003] Application document with application number CN201821488504.2 proposes a hydraulic support guide sleeve, which fully lubricates the body through an oil pipeline structure, and a connecting structure is provided on the outer wall of the body. When connected through the connecting structure, the connection is relatively stable and has a long service life.

[0004] However, the hydraulic support column cylinder guide sleeve device proposed in the aforementioned document has revealed numerous problems during long-term use. Although the amount of lubricating oil has been increased, the friction between the guide sleeve and the column cylinder remains significant, leading to severe wear. Frequent guide sleeve replacements not only increase maintenance costs and downtime but also affect the continuity and efficiency of mining operations. Furthermore, poor guiding accuracy makes the column cylinder prone to misalignment and jamming during movement, which not only reduces the stability and reliability of the hydraulic support but may also pose safety hazards. In addition, under high-intensity operation, if the large amount of heat generated by the guide sleeve device cannot be dissipated in time, it will lead to a decline in material properties, further exacerbating wear and increasing the probability of malfunctions. Utility Model Content

[0005] The purpose of this utility model is to provide a wear-resistant guide sleeve device for the hydraulic support column cylinder, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wear-resistant guide sleeve device for a hydraulic support column cylinder includes,

[0008] The housing assembly includes a housing, a support member disposed at the middle position of the side wall of the housing, and a side strip disposed on the side wall of the support member, the end of the side strip being fixedly connected to the side wall of the housing;

[0009] The guide assembly includes an outer sleeve inserted into the center of the housing, an inner sleeve snapped into the inner wall of the outer sleeve, and a ball bearing rotatably mounted on the side wall of the inner sleeve, the side wall of the ball bearing making rolling contact with the inner wall of the outer sleeve.

[0010] As a preferred embodiment of the present invention, the guide assembly further includes a set screw threaded to the side wall of the outer casing, the end of which is inserted into the side wall of the outer sleeve.

[0011] As a preferred embodiment of the present invention, the guide assembly further includes a retaining ring that is engaged with the inner side of the end of the outer sleeve, and the retaining ring is engaged with the outer side of the inner sleeve.

[0012] As a preferred embodiment of the present invention, the guide assembly further includes a spring adapted to be installed in the middle position inside the outer sleeve, the end of the spring being in elastic contact with the side wall of the inner sleeve.

[0013] As a preferred embodiment of the present invention, the guide assembly further includes a heat dissipation groove disposed on the side wall of the outer sleeve, the heat dissipation groove being connected to the through groove on the side wall of the outer shell.

[0014] As a preferred embodiment of the present invention, the housing assembly further includes a forming hole disposed on the side wall of the housing, the forming hole extending to the inner side of the connection between the edge strip and the support member.

[0015] As a preferred embodiment of this utility model, the outer wall of the connection between the edge strip and the support member is an arc-shaped structure, and the side wall of the edge strip is provided with a bent edge that cooperates with the support member.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: By using the housing assembly and guide assembly in conjunction, the addition of ball bearings transforms sliding friction into rolling friction, reducing wear. Simultaneously, the precise guide structure ensures the accuracy of the column cylinder's movement, improving the overall performance of the hydraulic support. Combined with the internal limiting and fixing structure, it reduces malfunctions caused by component loosening or displacement. The heat dissipation channel formed by the connection between the heat dissipation groove and the outer shell through groove effectively reduces the operating temperature of the guide sleeve device, extending the device's service life and improving its reliability in high-temperature operating environments. The special connection structure between the edge strip and the support component reduces stress concentration, enhances the strength and durability of the housing assembly, and ensures long-term stable operation of the entire device under complex working conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram showing a partial cross-sectional view of the present invention;

[0020] Figure 3 This is a partial cross-sectional front view of the present invention.

[0021] Figure 4 This is a front structural diagram of the present invention.

[0022] In the figure: 100, housing assembly; 101, outer shell; 102, support component; 103, side strip; 104, forming hole; 200, guide assembly; 201, outer sleeve; 202, inner sleeve; 203, ball bearing; 204, set screw; 205, retaining ring; 206, spring; 207, heat dissipation groove. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figure 1-4 This embodiment of the present invention provides a wear-resistant guide sleeve device for a hydraulic support column cylinder, comprising:

[0028] The housing assembly 100 includes a housing 101, a support member 102 disposed at the middle position of the side wall of the housing 101, and a side strip 103 disposed on the side wall of the support member 102, with the end of the side strip 103 fixedly connected to the side wall of the housing 101.

[0029] The guide assembly 200 includes an outer sleeve 201 inserted into the center of the housing 101, an inner sleeve 202 snapped into the inner wall of the outer sleeve 201, and a ball bearing 203 rotatably mounted on the side wall of the inner sleeve 202, the side wall of the ball bearing 203 making rolling contact with the inner wall of the outer sleeve 201.

[0030] The outer casing 101 serves as the external protective structure of the entire device, providing an installation base and support frame for other internal components. The side strip 103 is located on the side wall of the support member 102, with its end fixedly connected to the side wall of the outer casing 101, further reinforcing the connection between the support member 102 and the outer casing 101. It also facilitates positioning or guiding when used with other components. The outer sleeve 201 is inserted into the center of the outer casing 101 and is the main external structure of the guide assembly 200. The inner sleeve 202 is snapped into the inner side wall of the outer sleeve 201, forming a guide structure together. The inner sleeve 202 typically contacts the hydraulic support column cylinder that requires guidance, guiding its movement direction. Ball bearings 203 are rotatably mounted on the side wall of the inner sleeve 202, and their side walls roll against the inner side wall of the outer sleeve 201. This design converts sliding friction into rolling friction, making the movement of the inner sleeve 202 smoother on the inner wall of the outer sleeve 201, while also improving the wear resistance and service life of the guide sleeve device.

[0031] Specifically, the guide assembly 200 also includes a set screw 204 threaded to the side wall of the housing 101, with the end of the set screw 204 inserted into the side wall of the outer sleeve 201.

[0032] The set screw 204 is threaded onto the side wall of the housing 101, and its end is inserted into the side wall of the outer sleeve 201. By rotating the set screw 204, the position of the outer sleeve 201 within the housing 101 can be adjusted to achieve the fastening and positioning of the outer sleeve 201, ensuring the stability of the guide assembly 200 during operation.

[0033] Furthermore, the guide assembly 200 also includes a retaining ring 205 that is snapped into the inner side of the end of the outer sleeve 201 and snapped into the outer side of the inner sleeve 202.

[0034] The retaining ring 205 is engaged with the inner side of the end of the outer sleeve 201 and the outer side of the inner sleeve 202. It is mainly used to prevent the inner sleeve 202 from coming out of the end of the outer sleeve 201, and plays a role in limiting and fixing, so as to ensure the stability of the internal structure of the guide assembly 200.

[0035] Furthermore, the guide assembly 200 also includes a spring 206 adapted to be installed in the middle of the inner sleeve 201, with the end of the spring 206 in elastic contact with the side wall of the inner sleeve 202.

[0036] The spring 206 is fitted and installed inside the outer sleeve 201 at the middle position, with its end in elastic contact with the side wall of the inner sleeve 202. The spring 206 can provide a certain elastic force, enabling the inner sleeve 202 to maintain a certain buffering and self-adaptive ability when subjected to external forces, avoiding damage caused by rigid contact, and also helping the inner sleeve 202 to maintain good alignment during movement.

[0037] Preferably, the guide assembly 200 also includes a heat dissipation groove 207 disposed on the side wall of the outer sleeve 201, the heat dissipation groove 207 being connected to the through groove on the side wall of the outer casing 101.

[0038] The heat dissipation groove 207 is located on the side wall of the outer sleeve 201 and is connected to the through groove on the side wall of the outer shell 101. During the operation of the hydraulic support, the guide sleeve device will generate heat due to friction. The heat dissipation groove 207 can increase the heat dissipation area, allowing the heat to dissipate more quickly. By connecting with the through groove of the outer shell 101, a good heat dissipation channel is formed, which effectively reduces the working temperature of the guide sleeve device and improves its working performance and reliability.

[0039] It should be noted that the housing assembly 100 also includes a forming hole 104 disposed on the side wall of the housing 101, the forming hole 104 extending to the inner side of the connection between the side strip 103 and the support member 102.

[0040] The forming hole 104 is provided on the side wall of the housing 101 and extends to the inner side of the connection between the side strip 103 and the support member 102. It can install positioning components, reduce the overall weight, increase the flexibility of the structure, and reduce the possibility of deformation of the guide sleeve under stress.

[0041] Preferably, the outer wall of the connection between the edge strip 103 and the support member 102 is an arc-shaped structure, and the side wall of the edge strip 103 is provided with a bent edge that cooperates with the support member 102.

[0042] By adding a bent edge to the side wall of the side strip 103 and the support member 102, the connection between the side strip 103 and the support member 102 becomes tighter and more stable, which also improves the overall performance of the guide sleeve.

[0043] During use, when the hydraulic support column cylinder works, the column cylinder moves inside the inner sleeve 202. Due to the presence of the ball bearing 203, the inner sleeve 202 and the outer sleeve 201 move relative to each other through rolling friction, which greatly reduces the friction and makes the movement of the column cylinder smoother. The set screw 204 is connected to the outer shell 101 by a thread. Adjusting the set screw 204 can position and tighten the outer sleeve 201, ensuring the stability of the entire guide assembly 200 during operation. The retaining ring 205 prevents the inner sleeve 202 from coming off the end of the outer sleeve 201, ensuring the normal operation of the guide assembly 200. The spring 206 provides elastic force, allowing the inner sleeve 202 to adaptively adjust its position when subjected to external force, avoiding rigid collision damage. The heat generated during operation is dissipated through the heat dissipation groove 207 and the heat dissipation channel formed by the groove docking with the outer shell 101, ensuring that the guide sleeve device operates within a suitable temperature range.

[0044] In summary, the ball bearing 203 transforms sliding friction into rolling friction, reducing wear. Simultaneously, the precise guiding structure ensures the accuracy of the column cylinder's movement, improving the overall performance of the hydraulic support. The fastening effect of the set screw 204, the limiting effect of the retaining ring 205, and the buffering and self-adaptive effect of the spring 206 collectively ensure the stability of the internal structure of the guide assembly, reducing malfunctions caused by component loosening or displacement. The heat dissipation channel formed by the heat dissipation groove 207 and the through groove of the outer shell 101 effectively reduces the operating temperature of the guide sleeve device, extends the device's service life, and improves its reliability in high-temperature operating environments. The special connection structure between the edge strip 103 and the support member 102, such as the arc surface structure and bent edge design, reduces stress concentration, enhances the strength and durability of the shell assembly, and ensures long-term stable operation of the entire device under complex working conditions.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wear-resistant guide sleeve device for a hydraulic support column cylinder, characterized in that: include, The housing assembly (100) includes a housing (101), a support member (102) disposed at the middle position of the side wall of the housing (101), and a side strip (103) disposed on the side wall of the support member (102), the end of the side strip (103) being fixedly connected to the side wall of the housing (101). The guide assembly (200) includes an outer sleeve (201) inserted into the center of the housing (101), an inner sleeve (202) snapped into the inner wall of the outer sleeve (201), and a ball bearing (203) rotatably mounted on the side wall of the inner sleeve (202), the side wall of the ball bearing (203) making rolling contact with the inner wall of the outer sleeve (201).

2. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 1, characterized in that: The guide assembly (200) further includes a set screw (204) threaded to the side wall of the housing (101), the end of the set screw (204) being inserted into the side wall of the outer tube (201).

3. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 2, characterized in that: The guide assembly (200) further includes a retaining ring (205) that engages with the inner side of the end of the outer sleeve (201) and the retaining ring (205) engages with the outer side of the inner sleeve (202).

4. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 3, characterized in that: The guide assembly (200) also includes a spring (206) adapted to be installed in the middle of the inner sleeve (201), the end of the spring (206) being in elastic contact with the side wall of the inner sleeve (202).

5. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 4, characterized in that: The guide assembly (200) further includes a heat dissipation groove (207) disposed on the side wall of the outer sleeve (201), the heat dissipation groove (207) being connected to the through groove on the side wall of the outer shell (101).

6. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 5, characterized in that: The housing assembly (100) further includes a forming hole (104) disposed on the side wall of the housing (101), the forming hole (104) extending to the inside of the connection between the side strip (103) and the support member (102).

7. The wear-resistant guide sleeve device for a hydraulic support column cylinder according to claim 6, characterized in that: The outer wall of the connection between the edge strip (103) and the support member (102) is an arc-shaped structure, and the side wall of the edge strip (103) is provided with a bent edge that cooperates with the support member (102).

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