A thin-walled spacer

Abstract

This utility model relates to the field of thin-walled spacers and discloses a thin-walled spacer, including a spacer body, an inner wall lubrication structure disposed on the spacer body, the inner wall lubrication structure being located on one side of the inner wall of the spacer body, a heat dissipation support structure disposed on the spacer body, multiple sets of heat dissipation support structures being distributed inside the cylindrical wall of the spacer body, and an auxiliary limiting structure disposed on the spacer body, multiple sets of auxiliary limiting structures being distributed inside the cylindrical wall of the spacer body and close to the opening end of the spacer body. The auxiliary limiting structure includes clamping protrusions and slider limiting structures. Multiple clamping protrusions are fixedly connected to the outer wall of the spacer body, and the clamping protrusions are respectively close to the opening end of the spacer body. Through integrated functional design, continuous storage and uniform wetting of lubricating oil are achieved, enhancing heat dissipation efficiency while ensuring the structural stability of itself, and preventing the intrusion of external impurities. It is also equipped with a convenient and reliable assembly clamping and limiting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of thin-walled spacers, specifically a thin-walled spacer. Background Technology

[0002] Thin-walled spacers are key basic components in mechanical transmission systems, precision instruments, and power equipment. Their core functions are to achieve isolation and positioning between components, gap adjustment, and load transfer. These components are typically characterized by thin walls, compact structure, and high requirements for coaxiality and dimensional accuracy.

[0003] Traditional thin-walled spacers rely on external forced lubrication or pre-applied oil for lubrication. Their smooth inner walls lack oil storage / guiding structures, making them prone to oil loss due to centrifugal force. This necessitates frequent shutdowns for oil replenishment. The trade-off between heat dissipation and strength means that thin-walled structures often sacrifice heat dissipation to ensure strength. Although there are heat dissipation holes, their poor structure lacks support and dust protection, leading to decreased strength and the entry of external contaminants. In terms of assembly and positioning, clamping and limiting are unreliable. To address these issues, we propose a new type of thin-walled spacer. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a thin-walled spacer that solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a thin-walled spacer, comprising a spacer body;

[0006] An inner wall lubrication structure is provided on the body of the spacer, and the inner wall lubrication structure is located on one side of the inner wall of the body of the spacer.

[0007] The heat dissipation support structure is provided on the spacer body, and multiple sets of heat dissipation support structures are distributed inside the cylindrical wall of the spacer body.

[0008] The auxiliary limiting structure is provided on the spacer body, and multiple sets of auxiliary limiting structures are distributed inside the cylinder wall of the spacer body and close to the opening end of the spacer body.

[0009] The auxiliary limiting structure includes clamping protrusions and slider limiting structures. Multiple clamping protrusions are fixedly connected to the outer wall of the spacer body. The clamping protrusions are respectively close to the opening end of the spacer body, and one clamping protrusion corresponds to a set of slider limiting structures.

[0010] Preferably, the inner wall lubrication structure includes a sponge strip and an oil hole. The sponge strip is spiral-shaped, with an oil hole extending through one end. The sponge strip is snapped into the body of the spacer.

[0011] Preferably, the inner wall of the spacer body is provided with a spiral groove, and the sponge strip is engaged in the spiral groove.

[0012] Preferably, a plurality of evenly distributed heat dissipation holes are formed through the outer surface of the spacer body, and the heat dissipation holes are staggered from the spiral groove.

[0013] Preferably, the heat dissipation support structure includes an arc-shaped honeycomb plate and a dustproof mesh. An arc-shaped honeycomb plate is snapped into each of the heat dissipation holes. The honeycomb holes of the arc-shaped honeycomb plate face the inside of the spacer body. An arc-shaped honeycomb plate is snapped into each of the heat dissipation holes. The arc-shaped honeycomb plate is close to the outside of the spacer body.

[0014] Preferably, one side of each of the multiple clamping protrusions is fixedly connected to the outer surface of the spacer body, and the multiple clamping protrusions are respectively close to the two open ends of the spacer body. The side of the clamping protrusions facing away from the spacer body is provided with threaded holes.

[0015] Preferably, the inner wall of the spacer body is provided with multiple sliding grooves, the sliding grooves correspond to the clamping protrusions, and the side of the sliding groove near the clamping protrusion is provided with a guide hole that extends through to the threaded hole.

[0016] Preferably, the auxiliary limiting structure includes a limiting block, a screw, and a limiting protrusion. The limiting block is inserted into the slide groove, the screw is inserted into the threaded hole and the guide hole and is threadedly connected to the threaded hole. A stepped groove is provided on the side of the limiting block opposite to the guide hole. The limiting protrusion is fixedly connected to one end of the screw in the guide hole, and the limiting protrusion is rotatably engaged with the stepped groove.

[0017] Compared with the prior art, the present invention provides a thin-walled spacer, which has the following beneficial effects:

[0018] This thin-walled bushing, through its integrated functional design, achieves continuous storage and uniform wetting of lubricating oil, effectively reducing the frequency of downtime for oil replenishment. While ensuring its own structural stability, it also enhances heat dissipation efficiency and prevents external impurities from entering. Combined with a convenient and reliable assembly clamping and limiting mechanism, it significantly improves operational stability and service life, and reduces equipment maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the structure of this utility model;

[0021] Figure 3 This is a cross-sectional schematic diagram of the auxiliary limiting structure of this utility model;

[0022] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0023] In the diagram: 1. Spacer body; 2. Dustproof net; 3. Arc-shaped honeycomb panel; 4. Sponge strip; 5. Clamping protrusion; 6. Limiting block; 7. Threaded hole; 8. Heat dissipation hole; 9. Spiral groove; 10. Slide groove; 11. Screw; 12. Oil hole; 13. Limiting protrusion; 14. Stepped groove; 15. Guide hole. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 A thin-walled spacer, comprising a spacer body 1;

[0026] An inner wall lubrication structure is provided on the spacer body 1, and the inner wall lubrication structure is located on one side of the inner wall of the spacer body 1.

[0027] The heat dissipation support structure is provided on the bulkhead body 1, and multiple sets of heat dissipation support structures are distributed inside the cylinder wall of the bulkhead body 1.

[0028] The auxiliary limiting structure is set on the spacer body 1. Multiple sets of auxiliary limiting structures are distributed inside the cylinder wall of the spacer body 1 and close to the opening end of the spacer body 1.

[0029] The auxiliary limiting structure includes a clamping protrusion 5 and a slider limiting structure. Multiple clamping protrusions 5 are fixedly connected to the outer wall of the spacer body 1. The clamping protrusions 5 are respectively close to the opening end of the spacer body 1, and one clamping protrusion 5 corresponds to a set of slider limiting structures.

[0030] Furthermore, the inner wall lubrication structure includes a sponge strip 4 and an oil hole 12. The sponge strip 4 is spiral-shaped, and an oil hole 12 is opened through one end of the sponge strip 4. The sponge strip 4 is snapped into the spacer body 1. The sponge strip 4 is used to soak in lubricating oil, and the oil hole 12 is used to add lubricating oil.

[0031] Furthermore, a spiral groove 9 is provided on the inner wall of the spacer body 1, and the sponge strip 4 is snapped into the spiral groove 9. The spiral groove 9 is used to snap the sponge strip 4, so that the lubricating oil is evenly lubricated in the spacer body 1.

[0032] Furthermore, multiple evenly distributed heat dissipation holes 8 are provided through the outer surface of the spacer body 1. The heat dissipation holes 8 are staggered from the spiral groove 9. The heat dissipation holes 8 are used for heat dissipation and for installing heat dissipation support structures. The number of heat dissipation holes 8 is within the range that does not affect the strength of the spacer body 1.

[0033] Furthermore, the heat dissipation support structure includes an arc-shaped honeycomb plate 3 and a dustproof mesh 2. The arc-shaped honeycomb plate 3 is snapped into each of the heat dissipation holes 8. The honeycomb holes of the arc-shaped honeycomb plate 3 face the inside of the spacer body 1. The arc-shaped honeycomb plate 3 is snapped into each of the heat dissipation holes 8. The arc-shaped honeycomb plate 3 is close to the outside of the spacer body 1. The arc-shaped honeycomb plate 3 is used to support the heat dissipation holes 8 and allow ventilation. The dustproof mesh 2 is used for dust prevention.

[0034] Furthermore, one side of the multiple clamping protrusions 5 is fixedly connected to the outer surface of the spacer body 1. The multiple clamping protrusions 5 are respectively close to the two open ends of the spacer body 1. The side of the clamping protrusions 5 facing away from the spacer body 1 is provided with threaded holes 7. The clamping protrusions 5 are used to install the auxiliary limiting structure and to facilitate clamping the spacer body 1. The threaded holes 7 are used to adjust the auxiliary limiting structure.

[0035] Furthermore, the inner wall of the spacer body 1 is provided with multiple sliding grooves 10, which correspond to the clamping protrusions 5. A guide hole 15 is provided through the side of the sliding groove 10 near the clamping protrusions 5, and the guide hole 15 extends to the threaded hole 7. The sliding groove 10 and the guide hole 15 are used to install the auxiliary limiting structure.

[0036] Furthermore, the auxiliary limiting structure includes a limiting block 6, a screw 11, and a limiting protrusion 13. The limiting block 6 is inserted into the slide groove 10, and the screw 11 is inserted into the threaded hole 7 and the guide hole 15 and is threadedly connected to the threaded hole 7. A stepped groove 14 is provided on the side of the limiting block 6 opposite to the guide hole 15. The limiting protrusion 13 is fixedly connected to one end of the screw 11 in the guide hole 15. The limiting protrusion 13 is rotatably engaged with the stepped groove 14. The limiting block 6 slides in the slide groove 10. When it is necessary to limit the components inside the spacer body 1 within the spacer body 1, the limiting block 6 is slid out to limit the components within the spacer body 1. The screw 11 and the limiting protrusion 13 are used to push the limiting block 6 to slide in the slide groove 10. The limiting block 6 is in the threaded hole 7, and the limiting block 6 is rotated using a screwdriver.

[0037] Structural Description:

[0038] Spacer body 1: It is a thin-walled hollow cylinder with open ends and a compact structure. It provides an installation reference for various functional structures such as dustproof net 2 and arc honeycomb panel 3, and realizes the isolation and positioning, gap adjustment and load transfer between components.

[0039] Dustproof mesh 2: It is a sheet-like mesh, the size of which is adapted to the heat dissipation hole 8. It is snapped onto the outside of the heat dissipation hole 8 to intercept dust and impurities and prevent them from entering the interior of the sleeve body 1 and contaminating the lubricating oil.

[0040] Arc-shaped honeycomb panel 3: It is an arc-shaped sheet with honeycomb holes inside. It is snapped into the heat dissipation hole 8. The arc-shaped surface fits the wall of the heat dissipation hole 8 to provide support. The honeycomb holes form a ventilation channel to help the spacer body 1 dissipate heat.

[0041] Sponge strip 4: It is a spiral strip with an oil hole 12 at one end, which is snapped into the spiral groove 9. The highly oil-absorbent material is soaked in and stores lubricating oil. The structure of the spiral groove 9 enables the oil to spread evenly on the inner wall of the spacer body 1.

[0042] Clamping protrusion 5: It is block-shaped and fixed to the outer wall of the spacer body 1 near the opening end. Threaded holes 7 are opened on the surface to provide a stable clamping point for the assembly fixture, and at the same time, it serves as the mounting base for auxiliary limiting structures such as limiting block 6 and screw 11.

[0043] Limiting block 6: It is a block shape that is adapted to the slide groove 10. It can slide in the slide groove 10. When it slides out, it fits the internal components of the spacer body 1 to achieve the limit. When it retracts, it does not interfere with the operation of the components.

[0044] Threaded hole 7: A circular through hole with internal threads, opened on the surface of the clamping protrusion 5, which is threaded to the screw 11 to provide a base for the installation and adjustment of the screw 11;

[0045] Heat dissipation hole 8: It is a circular through hole, evenly distributed on the cylindrical wall of the spacer body 1 and staggered from the spiral groove 9. It serves as a heat dissipation channel for the spacer body 1 and also accommodates the arc honeycomb plate 3 and the dustproof mesh 2.

[0046] Spiral groove 9: A spiral groove is formed on the inner wall of the spacer body 1. The size matches the sponge strip 4. It is used to snap and fix the sponge strip 4 and guide the oil in the sponge strip 4 to evenly cover the inner wall of the spacer body 1.

[0047] Slide groove 10: It is a long strip-shaped groove, which is opened on the inner wall of the spacer body 1 and corresponds to the clamping protrusion 5. It provides a sliding track for the limiting block 6 and ensures that the moving direction of the limiting block 6 is stable.

[0048] Screw 11: It is a cylindrical rod with external threads, with a fixed limiting protrusion 13 at one end, which passes through the threaded hole 7 and the guide hole 15. It pushes the limiting block 6 to slide through the threaded transmission with the threaded hole 7.

[0049] Oil hole 12: It is a circular through hole that passes through one end of the sponge strip 4 and serves as a channel for injecting lubricating oil, making it convenient to replenish oil into the sponge strip 4;

[0050] Limiting protrusion 13: It is block-shaped and fixed to the end of the screw 11. It is rotatably engaged with the stepped groove 14, which transmits the thrust of the screw 11 and allows the screw 11 to rotate without driving the limiting block 6.

[0051] Stepped groove 14: A stepped groove is formed on the side of the limiting block 6 facing the guide hole 15, and is adapted to the limiting protrusion 13 to provide rotation space and axial positioning for the limiting protrusion 13;

[0052] Guide hole 15: It is a circular through hole that passes through the slide groove 10 and the threaded hole 7, providing guidance for the axial movement of the screw 11 and preventing the screw 11 from deviating.

[0053] Working principle: Before assembly, lubricating oil is injected through the oil hole 12 at one end of the sponge strip 4. The highly absorbent sponge strip 4 quickly soaks in and stores the oil. The spiral structure precisely engages with the spiral groove 9 on the inner wall of the spacer body 1. When the parts that the spacer is fitted with rotate, the sponge strip 4 vibrates slightly due to friction with the parts. Under the influence of gravity and capillary action, the oil spreads evenly along the spiral groove 9. At the same time, the spiral structure ensures that the oil covers the entire inner wall of the spacer. The heat dissipation holes 8 on the outer surface of the spacer body 1 are staggered from the spiral groove 9 on the inner wall. During operation, the heat generated by the friction of the parts is conducted to the heat dissipation holes 8 through the spacer body. The honeycomb holes of the arc-shaped honeycomb plate 3 face the inside of the spacer, forming a dense ventilation channel. The arc structure and the heat dissipation holes... The inner wall of the 8-section provides rigid support for the hole. The dustproof net 2 near the outside of the spacer intercepts dust and impurities in the air, preventing them from entering the interior through the heat dissipation holes and contaminating the lubricating oil. During assembly, the clamping protrusion 5 on the outer wall of the spacer body 1 provides a stable clamping point for the fixture. When it is necessary to limit the internal components, use a screwdriver to rotate and clamp the screw 11 on the protrusion 5. The screw moves axially along the guide hole 15 through the threaded engagement with the threaded hole 7. The limiting protrusion 13 at its end rotates and engages with the stepped groove 14 of the limiting block 6, pushing the limiting block 6 to slide out along the slide groove 10. After the limiting block 6 extends, it fits against the end face of the internal component. If it is necessary to cancel the limit, rotate the screw 11 in the opposite direction to drive the limiting block 6 back into the slide groove 10.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thin-walled spacer, characterized in that, Including the spacer body (1); An inner wall lubrication structure is provided on the spacer body (1), and the inner wall lubrication structure is located on one side of the inner wall of the spacer body (1); The heat dissipation support structure is provided on the spacer body (1), and multiple sets of heat dissipation support structures are distributed inside the cylinder wall of the spacer body (1). The auxiliary limiting structure is provided on the spacer body (1). Multiple sets of auxiliary limiting structures are distributed inside the cylinder wall of the spacer body (1) and close to the opening end of the spacer body (1). The auxiliary limiting structure includes a clamping protrusion (5) and a slider limiting structure. Multiple clamping protrusions (5) are fixedly connected to the outer wall of the spacer body (1). The clamping protrusions (5) are respectively close to the opening end of the spacer body (1). One clamping protrusion (5) corresponds to a set of slider limiting structures.

2. A thin-walled spacer according to claim 1, characterized in that, The inner wall lubrication structure includes a sponge strip (4) and an oil hole (12). The sponge strip (4) is spiral in shape, and an oil hole (12) is opened through one end of the sponge strip (4). The sponge strip (4) is snapped into the spacer body (1).

3. A thin-walled spacer according to claim 2, characterized in that, The inner wall of the spacer body (1) is provided with a spiral groove (9), and the sponge strip (4) is engaged in the spiral groove (9).

4. A thin-walled spacer according to claim 3, characterized in that, Multiple evenly distributed heat dissipation holes (8) are provided through the outer surface of the spacer body (1), and the heat dissipation holes (8) are offset from the spiral groove (9).

5. A thin-walled spacer according to claim 4, characterized in that, The heat dissipation support structure includes an arc-shaped honeycomb plate (3) and a dustproof mesh (2). The arc-shaped honeycomb plate (3) is snapped into each of the heat dissipation holes (8). The honeycomb holes of the arc-shaped honeycomb plate (3) face the interior of the spacer body (1). The arc-shaped honeycomb plate (3) is snapped into each of the heat dissipation holes (8). The arc-shaped honeycomb plate (3) is close to the exterior of the spacer body (1).

6. A thin-walled spacer according to claim 1, characterized in that, One side of the multiple clamping protrusions (5) is fixedly connected to the outer surface of the spacer body (1). The multiple clamping protrusions (5) are respectively close to the two open ends of the spacer body (1). The side of the clamping protrusions (5) facing away from the spacer body (1) is provided with threaded holes (7).

7. A thin-walled spacer according to claim 6, characterized in that, The inner wall of the spacer body (1) is provided with multiple sliding grooves (10), which correspond to the clamping protrusions (5). A guide hole (15) is provided on the side of the sliding groove (10) close to the clamping protrusions (5), and the guide hole (15) extends through to the threaded hole (7).

8. A thin-walled spacer according to claim 7, characterized in that, The auxiliary limiting structure includes a limiting block (6), a screw (11), and a limiting protrusion (13). The limiting block (6) is inserted into the slide groove (10), and the screw (11) is inserted into the threaded hole (7) and the guide hole (15) and threadedly connected to the threaded hole (7). A stepped groove (14) is provided on the side of the limiting block (6) opposite to the guide hole (15). The limiting protrusion (13) is fixedly connected to one end of the screw (11) in the guide hole (15), and the limiting protrusion (13) is rotatably engaged with the stepped groove (14).

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