Spacer sleeve
By designing an elastic jacket and a spacer sleeve with raised dots, the problem of noise caused by swaying of the wind power busbar was solved, resulting in noise reduction, convenient installation, and improved equipment stability.
Patent Information
- Application Number
- CN202520390921.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Noise caused by shaking during operation of wind turbine busbars affects equipment stability and service life.
A spacer sleeve with an elastic outer sheath protruding from the outer wall of the hollow body was designed, which, combined with protrusions and a double-layer material structure, provides cushioning and reduces friction.
It effectively reduces noise, improves installation convenience and equipment stability, extends service life, and reduces maintenance costs.
Smart Images
Figure CN223957241U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to interval sleeve technical field, concretely is interval sleeve. BACKGROUND
[0002] In the field of wind power, with the wide application of wind power generation technology, the stable operation and performance optimization of wind power equipment become the key. As an important component of the power transmission system, the reliability of the installation structure of the wind power bus pipe is crucial. In the installation structure of the wind power bus pipe, the spacer sleeve is a key part connecting the installation support and the mounting seat, which plays an indispensable role in the stable operation of the whole system.
[0003] At present, the wind power bus pipe often shakes due to the influence of external forces such as strong wind and equipment vibration during actual operation. As mentioned in the patent CN217427606U, when the bus pipe shakes, the mounting seat and the mounting support will produce relative displacement, and the spacer sleeve will frequently rub with the surrounding components during connection. Due to the single structure of the existing spacer sleeve, under such frequent friction, a lot of noise will be generated.
[0004] These noises not only interfere with the working environment of the wind farm, but also may have an impact on other precision components inside the equipment in the long run, reducing the stability and service life of the equipment. For example, continuous noise vibration may cause the loosening of connecting components, increasing the equipment maintenance cost and safety hazards.
[0005] Therefore, it is of great significance to develop a new type of spacer sleeve to effectively solve the problem of noise generated by friction of the spacer sleeve in the installation structure of the wind power bus pipe, and to improve the overall performance and reliability of the wind power equipment. UTILITY MODEL CONTENTS
[0006] The utility model provides a kind of spacer sleeve to the deficiency in the background art.
[0007] The technical scheme adopted by the utility model is: a spacer sleeve, including hollow main body of cylindrical shape, further including elastic cover, a circle of embedded ring groove is arranged on the outer wall of the hollow main body, the elastic cover is embedded with the above-mentioned embedded ring groove, and the elastic cover is arranged protruding from the outer wall of the hollow main body.
[0008] Further, the height of the elastic cover protruding from the outer wall of the hollow main body is 1-3mm.
[0009] Further, a plurality of convex points are arranged on the outer wall of the elastic cover.
[0010] Further, the height of the convex point is 1-2mm.
[0011] Further, one end of the elastic sleeve is provided with an external thread section, and an adjusting screw piece is connected to the external thread section.
[0012] Further, the elastic sleeve comprises an inner layer and a wear-resistant outer layer.
[0013] Further, the inner layer is a polyurethane thermoplastic elastomer (TPU), and the wear-resistant outer layer is an ultra-high molecular weight polyethylene (UHMWPE).
[0014] The utility model discloses the beneficial effect is:
[0015] 1. effectively reduce noise: the elastic sleeve is arranged on the outer wall of the hollow main body, and when the spacer sleeve and the inner wall of the waist hole slide contact, the elastic sleeve can buffer friction and collision by its elasticity. When the busbar pipe shakes to cause the relative displacement of the mounting seat and the mounting bracket, the elastic sleeve can absorb most of the vibration energy when the spacer sleeve slides in the waist hole, and reduce the noise generated by rigid friction.
[0016] 2. optimize installation convenience: the embedding annular groove of the outer wall of the hollow main body plays a stabilizing role on the elastic sleeve, and the cooperation structure of the embedding annular groove and the elastic sleeve is simple and easy to install. In the assembly and maintenance process of the wind power equipment, the staff can quickly install the elastic sleeve to the embedding annular groove of the hollow main body, without complex operation process and professional tools. This convenient installation mode can also be replaced individually after the elastic sleeve is worn, reducing the use cost.
[0017] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 It is the structural schematic diagram of the utility model.
[0019] Fig. 2 It is the schematic diagram of hiding after adjusting screw piece.
[0020] Fig. 3 It is the cross section schematic diagram of hiding after adjusting screw piece.
[0021] Figs. 1-3 Middle: 1, hollow main body, 2, elastic sleeve, 3, embedding annular groove, 4, convex point, 5, external thread section, 6, adjusting screw piece, 7, inner layer, 8, wear-resistant outer layer. DETAILED DESCRIPTION
[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.
[0023] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.
[0024] The utility model provides a spacing sleeve.
[0025] In the embodiment, with reference to Figs. 1-3 The spacing sleeve comprises a hollow main body 1 in a cylindrical shape, and an elastic sleeve 2, a ring-shaped embedding groove 3 is arranged on the outer wall of the hollow main body, the elastic sleeve is embedded in the embedding groove 3, and the elastic sleeve protrudes from the outer wall of the hollow main body.
[0026] In the above technical solution, the elastic sleeve provides an additional buffer layer for the spacing sleeve. In the wind power busbar pipe installation structure, when the busbar pipe shakes to cause the relative sliding of the mounting seat and the mounting bracket, the elastic sleeve can effectively buffer the impact force between the two, reduce the direct friction between the hollow main body and other components, and reduce the degree of wear. Since the elastic sleeve protrudes from the outer wall of the hollow main body, it is mainly used for direct contact with the waist-shaped hole, can absorb vibration energy, reduce noise generation, and provide good elastic buffering capacity.
[0027] Specifically, the height of the elastic sleeve protruding from the outer wall of the hollow main body is 1-3mm.
[0028] In the embodiment, the height of the elastic sleeve protruding from the outer wall of the hollow main body is between 1-3mm, which can ensure that the elastic sleeve has sufficient buffer space to effectively absorb vibration and reduce friction, and also will not affect the compactness and stability of the overall structure due to the protrusion being too high. The appropriate protrusion height ensures that the elastic sleeve can fully play a role in elasticity when bearing external force, prolongs the service life of the spacing sleeve, and does not interfere with the normal operation of other components inside the wind power equipment.
[0029] Specifically, a plurality of convex points 4 are arranged on the outer wall of the elastic sleeve.
[0030] In this embodiment, the elastic sleeve outer wall is provided with a plurality of convex points arranged at intervals, which changes the contact mode between the elastic sleeve and the inner wall of the waist-shaped hole. The convex points change the contact between the two from surface contact to point contact, effectively reducing the contact area and friction while ensuring the stability of the connection. This not only further reduces the generation of noise, but also has a rolling effect similar to a ball when the spacer sleeve slides, making the sliding smoother and improving the dynamic performance of the spacer sleeve, enhancing the ability of the wind power busbar pipe installation structure to cope with shaking.
[0031] Specifically, the height of the convex points is 1-2mm.
[0032] In this embodiment, the height of the convex points is 1-2mm, which is determined on the basis of ensuring that the convex points can reduce friction and improve sliding performance. If the convex points are too high, it will cause the spacer sleeve to jump during sliding, affecting stability; if the convex points are too low, it will not be able to fully play the role of reducing friction and improving sliding. The height of 1-2mm makes the convex points not only effectively reduce the friction, but also ensure the smooth sliding of the spacer sleeve in the waist-shaped hole, improving the working reliability and efficiency of the spacer sleeve.
[0033] Specifically, one end of the outer wall of the elastic sleeve is provided with an outer threaded section 5, and the outer threaded section 5 is connected with an adjusting screw piece 6.
[0034] In this embodiment, the outer threaded section and the adjusting screw piece on the outer wall of one end of the elastic sleeve provide adjustability for the spacer sleeve. During the installation of the wind power busbar pipe, by rotating the adjusting screw piece, the effective length of the spacer sleeve can be fine-tuned to adapt to different installation requirements and working conditions. This design improves the versatility of the spacer sleeve, allowing it to be flexibly applied in different specifications of wind power equipment, ensuring a tight and stable connection between the mounting seat and the mounting bracket, and enhancing the adaptability and reliability of the entire installation structure.
[0035] Specifically, the elastic sleeve includes an inner layer 7 and a wear-resistant outer layer 8.
[0036] In this embodiment, the elastic sleeve adopts a double-layer structure of an inner layer and a wear-resistant outer layer, combining the advantages of both materials. The inner layer provides elasticity, ensuring that the spacer sleeve can effectively buffer and absorb vibrations when subjected to external forces; the wear-resistant outer layer protects the inner layer, reducing damage caused by long-term friction and prolonging the service life of the elastic sleeve. This double-layer structure enables the spacer sleeve to maintain good elastic properties and excellent wear resistance in complex wind power operating environments, improving the overall performance and reliability of the spacer sleeve.
[0037] Specifically, the inner layer is a polyurethane thermoplastic elastomer (TPU), and the wear-resistant outer layer is ultra-high molecular weight polyethylene (UHMWPE).
[0038] In the embodiment, the inner layer is selected from polyurethane thermoplastic elastomer (TPU), which has high elasticity, high strength and good weather resistance, can provide stable and durable elastic support for the spacer sleeve, and effectively buffers the impact force between the mounting seat and the mounting bracket. The outer layer is selected from ultra-high molecular weight polyethylene (UHMWPE), which has very high wear resistance and self-lubricating property, greatly reduces the friction coefficient between the spacer sleeve and the inner wall of the waist-shaped hole, reduces wear, and further reduces noise. The combination of such materials fully utilizes the properties of the two materials, significantly improves the performance and service life of the spacer sleeve, and reduces the maintenance cost of the wind power equipment.
[0039] Skilled persons should know that although the utility model has been described according to the above specific embodiments, the utility model idea is not limited to this utility model, and any modification using the utility model idea will be included in the patent protection range.
Claims
1. A spacer sleeve comprising a cylindrical hollow body, characterized in that: The hollow main body is provided with a ring-shaped embedding groove on the outer wall, and the elastic sleeve is embedded in the embedding groove and protrudes from the outer wall of the hollow main body.
2. The spacer sleeve of claim 1, wherein: The height of the elastic sleeve protruding from the outer wall of the hollow main body is 1-3 mm.
3. The spacer sleeve of claim 1, wherein: The outer wall of the elastic sleeve is provided with a plurality of convex points at intervals.
4. The spacer sleeve of claim 3, wherein: The height of the convex points is 1-2 mm.
5. The spacer sleeve of claim 1, wherein: One end of the outer wall of the elastic sleeve is provided with an outer threaded section, and an adjusting screw piece is connected to the outer threaded section.
6. The spacer sleeve of claim 1, wherein: The elastic sleeve comprises an inner layer and a wear-resistant outer layer.
7. The spacer sleeve of claim 6, wherein: The inner layer is a polyurethane thermoplastic elastomer (TPU), and the wear-resistant outer layer is ultra-high molecular weight polyethylene (UHMWPE).