Eccentric block with eccentric compensation function
By designing an eccentric block with eccentric compensation function, and adopting an eccentric structure and an integrally formed boss, the vibration and stability problems of traditional eccentric blocks under complex working conditions are solved, and the stable operation and efficient production of the compressor are realized.
Patent Information
- Application Number
- CN202520549093.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional eccentric block structures struggle to precisely control the eccentric rotation radius when dealing with complex compressor operating conditions, leading to increased vibration and intensified component collisions, which affects the compressor's operational stability and reliability.
An eccentric block with eccentricity compensation function is designed. An eccentric structure is adopted and the boss is manufactured by one-piece molding process. Combined with ductile iron material and diamond-like coating, it can accurately compensate for the eccentricity radius of rotation, optimize the involute pinch degree, and enhance the structural stability and mechanical properties.
It significantly reduces equipment vibration, improves production qualification rate and consistency, extends equipment life, reduces production costs, and ensures stable operation of the compressor under complex working conditions.
Smart Images
Figure CN223708422U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical engineering technical field especially relates to eccentric block with eccentric compensation function. BACKGROUND
[0002] In the research and production of modern electric air conditioning compressor, efficient, stable and reliable operation performance is always the core target pursued by the industry. However, from the perspective of eccentric control, the current field is facing technical problems to be solved.
[0003] The traditional eccentric block structure shows obvious limitations when dealing with the complex and changeable working conditions of the compressor operation. Because the freedom degree of eccentric rotation radius is difficult to be accurately and effectively controlled, the involute pinch degree in the compressor is difficult to reach the ideal state. During the high-speed operation of the compressor, this suboptimal pinch degree will cause a series of problems, such as the aggravation of the collision between parts, the increase of vibration amplitude, and thus seriously affect the overall operation stability and reliability of the compressor. SUMMARY
[0004] In order to overcome the above-mentioned shortcomings, the technical problem of the utility model is to provide an eccentric block with eccentric compensation function.
[0005] The technical implementation scheme of the utility model is: an eccentric block with eccentric compensation function, comprising an eccentric block body and a boss, the eccentric block body adopts an eccentric structure, the part of the eccentric block body extending outward from the front side is provided with a boss, the boss and the eccentric block body are manufactured by an integral molding process, a rotating shaft mounting hole is arranged at the center position of the eccentric block body and penetrates the boss, and is used for the installation of the rotating shaft of the compressor.
[0006] Optionally, the material of the eccentric block body is nodular cast iron.
[0007] Optionally, the outer shape contour of the boss is arc-shaped, and the position of the boss on the eccentric block body meets the mechanical balance requirement during the operation of the compressor.
[0008] Optionally, the inner diameter size precision of the rotating shaft mounting hole reaches IT7 level, and the surface roughness reaches Ra0.8 μm.
[0009] Optionally, the ratio of the boss height to the eccentric block body thickness is between 0.2-0.3.
[0010] Optionally, the inner wall of the rotating shaft mounting hole is provided with a diamond-like carbon coating.
[0011] The utility model has the advantages of 1, eccentric block body unique eccentric structure design, can accurate compensation compressor operation eccentric radius of freedom of rotation, effectively balance the unbalanced force generated in the operation process, significantly reduce the equipment vibration, ensure that the compressor remains stable in long time operation, improve the overall operation performance and reliability.
[0012] 2, through the accurate eccentric compensation, involute pinch degree is optimized, the product defective rate caused by unstable operation is reduced, the production qualified rate and consistency are improved, simultaneously, the excessive dependence on machining precision is reduced, so that under the same machining condition, production efficiency can be improved, and production cost is reduced.
[0013] 3, the design of boss and eccentric block body integral molding greatly enhances the stability and mechanical properties of the overall structure, can still maintain good working condition under the complex stress environment of compressor operation, reduces the equipment failure caused by structural damage, prolongs the service life of equipment. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the three-dimensional structure schematic view of the utility model.
[0015] Figure 2 It is the top view of the utility model.
[0016] Figure 3 It is the front view of the utility model.
[0017] Figure 4 It is the bottom view of the utility model.
[0018] In the above drawing, 1: eccentric block body, 2: boss, 3: rotating shaft mounting hole. DETAILED DESCRIPTION
[0019] In this document, referring to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the utility model. The appearance of this phrase in various places in the specification is not necessarily all referring to the same embodiment, nor is it necessarily referring to a preferred or alternative embodiment. It will be explicitly understood that the embodiments described herein can be combined with each other, without other embodiments being mutually exclusive or alternative.
[0020] Embodiment: an eccentric block with eccentric compensation function, such as Figures 1-4As shown, it comprises eccentric block body 1 and boss 2, eccentric block body 1 adopts a unique eccentric structure, its special shape design can efficiently and accurately compensate the freedom of eccentric rotation radius during the operation of the compressor, significantly improve the stability and reliability of the equipment operation, from the perspective of mechanics, this structure effectively balances the unbalanced force generated during operation, reduces vibration and wear, the part extending outward from the front side of eccentric block body 1 is provided with boss 2, boss 2 and eccentric block body 1 are manufactured by one-piece forming process, its structure design helps to enhance the overall stability and mechanical properties of eccentric block body 1, the contour of boss 2 is arc-shaped, and its position on eccentric block body 1 meets the mechanical balance requirement during the operation of the compressor, and the ratio of boss 2 height to eccentric block body 1 thickness is between 0.2-0.3, which can ensure reliable operation of the eccentric block under complex working conditions while meeting the eccentric compensation function, rotating shaft mounting hole 3 is arranged at the center position of eccentric block body 1 and penetrates boss 2, which can realize close and stable cooperation with the rotating shaft of the compressor, thereby ensuring the reliable operation of eccentric block body 1 during high-speed rotation, effectively avoiding problems such as looseness and deviation, and the inner wall of rotating shaft mounting hole 3 is provided with a diamond-like carbon coating for further reducing the friction coefficient and improving the wear resistance, which can effectively reduce the energy loss during rotation and improve the efficiency of the compressor.
[0021] When the electric air conditioner compressor starts to operate, eccentric block body 1 rotates synchronously with the rotating shaft, in the rotating process, boss 2 plays a key role, dynamically compensates the freedom of eccentric rotation radius, and promotes the better pinch of involute, at the same time, rotating shaft mounting hole 3 ensures the stable connection relationship between eccentric block body 1 and the rotating shaft, so that the entire eccentric block body 1 remains stable during operation, thereby effectively improving the production yield and consistency, reducing the stringent requirements on processing precision, and ultimately improving the production efficiency.
[0022] The material of eccentric block body 1 is nodular cast iron, which has high strength and excellent wear resistance, can withstand the huge pressure and friction force generated during the operation of the compressor, and can still maintain good mechanical properties during long-term use, greatly prolonging the service life of the eccentric block and reducing the maintenance cost, providing a solid guarantee for the stable operation of the compressor.
[0023] The inner diameter size precision of rotating shaft mounting hole 3 reaches IT7 level, which can better ensure the cooperation precision with the rotating shaft, ensure the stable rotation of the eccentric block, and the surface roughness reaches Ra0.8μm, which can effectively reduce the friction loss during rotation and improve the efficiency of the compressor.
[0024] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the disclosure that various changes or modifications can be made to the utility model without departing from the principles and spirit of the utility model defined in the claims. Therefore, the detailed description of the embodiments of the disclosure is only used for explanation, not for limiting the utility model, and the protection range is defined by the content of the claims.
Claims
1. An eccentric block with eccentricity compensation function, characterized in that: The eccentric block body (1) is eccentrically structured, and the portion of the eccentric block body (1) extending outward from the front side is provided with a boss (2), the boss (2) and the eccentric block body (1) are manufactured by an integral molding process, a rotating shaft mounting hole (3) is arranged at the center of the eccentric block body (1) and penetrates the boss (2) and is used for mounting the rotating shaft of a compressor.
2. The eccentric block with eccentricity compensation function according to claim 1, characterized in that: The material of the eccentric block body (1) is nodular cast iron.
3. The eccentric block with eccentricity compensation function according to claim 2, characterized in that: The boss (2) is arc-shaped in profile, and its position on the eccentric block body (1) meets the mechanical balance requirement during the operation of the compressor.
4. The eccentric block with eccentricity compensation function according to claim 3, characterized in that: The inner diameter size precision of the rotating shaft mounting hole (3) reaches IT7 level, and the surface roughness reaches Ra0.8μm.
5. The eccentric block with eccentricity compensation function according to claim 4, characterized in that: The ratio of the height of the boss (2) to the thickness of the eccentric block body (1) is between 0.2-0.
3.
6. The eccentric block with eccentricity compensation function according to claim 5, characterized in that: The inner wall of the rotating shaft mounting hole (3) is provided with a diamond-like carbon coating.