High manganese steel balance weight for scroll compressor

Abstract

The utility model relates to the field of compressor precision casting provides a high manganese steel balance block of scroll compressor, through setting the body of ring and encasing outside the axle rod of compressor, through setting the boss for matching with compressor axle part, the boss's '7' character shape's boss can be good with compressor axle part together realize firm assembly, the body installs and fixes through four through -holes, the body outside stores lubricating oil through oil storage groove to lubricate use, the body surface sets up the sound -absorbing cotton through setting up arc -shaped groove, realizes the noise reduction on the basis of not influencing overall structure, the size of body and through -hole and the size of boss match the compressor well, realize accurate assembly, the arc -shaped groove presents to the circular direction and arranges in proper order, like this maximization uses space, guarantees the effect of noise reduction.

Description

Technical Field

[0001] This utility model relates to the field of precision casting of compressors, and in particular to a high-manganese steel balance block for a scroll compressor. Background Technology

[0002] Currently, in the field of precision casting for compressors, the compressor balance block is a key counterweight component of the compressor rotor, used to maintain the dynamic balance of the high-speed rotating mechanism. Its structure, materials, and functional design have seen diversified development. In terms of materials, early designs used non-magnetic manganese steel or low-carbon manganese steel, formed by metal die casting. Later developments included high-manganese steel and powder metallurgy materials such as aluminum powder and iron ore powder, which, through processes such as mixing, grinding, and sintering, improve tensile strength, fatigue strength, and impact toughness. Functionally, in addition to its core balancing role, it also solves the problems of increased power consumption and shaft instability caused by oil churning in traditional designs. Furthermore, its streamlined curved surface design reduces air resistance and avoids excessive increase in size and weight. However, for current compressor balance blocks, the compressor shaft needs to be stably fixed to the balance block, and it also needs to provide good lubrication and noise reduction. Therefore, solving these problems is crucial. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a high-manganese steel balance block for a scroll compressor, which solves the problems in the background art.

[0004] Based on the above objectives, this utility model provides a high-manganese steel balance block for a scroll compressor, comprising a body in the shape of a ring. A raised high-manganese steel boss is provided on one half of the body, with two opposite sides of the boss conforming to the inner and outer ring shapes of the body. The other two sides of the boss form a symmetrical "7" shape, with the two "7"-shaped corners positioned far apart to form a protrusion. Four through holes arranged in a square pattern are provided on the surface of the body, with two through holes located at and penetrating the boss. Multiple oil storage grooves are evenly distributed on the outer side of the body. Multiple arc-shaped grooves are formed on one side of the body surface, excluding the boss and through holes, and the arc-shaped grooves are filled with sound-absorbing cotton.

[0005] Preferably, the outer diameter of the main body is 54mm and the inner diameter is 30mm.

[0006] Preferably, the diameter of the through hole is 4.3 mm, and the centers of the four through holes are on the same circular ring with a diameter of 38 mm.

[0007] Preferably, the height of the body is 2.8 mm and the height of the boss is 22 mm.

[0008] Preferably, the arc-shaped grooves are arranged sequentially on the surface of the body in a direction towards the center.

[0009] Preferably, the "7"-shaped corner of the boss is rounded, and the radius of the rounded corner is R1 or less.

[0010] The beneficial effects of this utility model are as follows: The main body, consisting of a circular ring, is fitted onto the compressor shaft. A raised boss is provided to match the compressor shaft; the "7"-shaped protrusion of the boss fits snugly against the compressor shaft for a secure assembly. The main body is fixed in place through four through holes. An oil reservoir on the outer side of the main body stores lubricating oil for lubrication. Sound-absorbing cotton is placed on the surface of the main body using arc-shaped grooves, achieving noise reduction without affecting the overall structure. The dimensions of the main body, through holes, and boss are well-matched to the compressor, achieving precise assembly. The arc-shaped grooves are arranged sequentially in a circular direction, maximizing space utilization and ensuring noise reduction. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a top view of the present invention;

[0013] Figure 2 This is the front view of this utility model;

[0014] Figure 3 This is a side view of the present invention.

[0015] The diagram is marked as follows:

[0016] 1-Body, 2-Boss, 3-Through hole, 4-Oil reservoir, 5-Arc groove, 6-Sound-absorbing cotton. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 3 As shown, a high-manganese steel balance block for a scroll compressor includes a body 1, which is annular in shape. A raised high-manganese steel boss 2 is provided on one half of one side of the body 1. The manganese content of the body 1 and the boss 2 is 16-20%, resulting in high hardness, good toughness, high wear resistance, and high temperature resistance. Two opposite sides of the boss 2 conform to the inner circle and outer ring shape of the body 1, while the other two sides of the boss 2 form a symmetrical "7" shape, with the two "7"-shaped corners positioned far apart from each other. The protrusion 2 has a rounded corner at its "7"-shaped bend, with a radius of R1 or less. The body 1 has four square-arranged through holes 3, two of which are located at and penetrate the protrusion 2. Multiple oil reservoirs 4 are evenly distributed along the outer side of the body 1. Multiple arc-shaped grooves 5 are formed on one side of the body 1, excluding the protrusion 2 and through holes 3. These arc-shaped grooves 5 are arranged sequentially towards the center of the body 1, and filled with sound-absorbing cotton 6. The body 1, with its annular shape, is fitted onto the compressor shaft. The protruding protrusion 2 matches the compressor shaft, and the "7"-shaped protrusion of the protrusion 2 fits snugly against the compressor shaft for a secure assembly. The body 1 is fixed in place by the four through holes 3. The outer side of the body 1 stores lubricating oil through the oil reservoirs 4 for lubrication. The surface of the body 1 has arc-shaped grooves 5 for the sound-absorbing cotton 6, achieving noise reduction without affecting the overall structure. The arc-shaped grooves 5 are arranged sequentially in a circular direction, which maximizes the use of space and ensures the noise reduction effect.

[0020] The outer diameter of the body 1 is 54mm, and the inner diameter is 30mm. The diameter of the through hole 3 is 4.3mm, and the centers of the four through holes 3 are on a circular ring with a diameter of 38mm. The height of the body 1 is 2.8mm, and the height of the boss 2 is 22mm. The dimensions of the body 1, the through holes 3, and the boss 2 are well matched to the compressor, achieving precise assembly.

[0021] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-manganese steel balance block for a scroll compressor, comprising a body (1) in the shape of a ring, characterized in that, The body (1) has a raised high manganese steel boss (2) on one side half. The two opposite sides of the boss (2) match the inner circle and outer ring shape of the body (1). The other two sides of the boss (2) form a symmetrical "7" shape. The two "7" shaped corners are set far apart to form a protrusion. The surface of the body (1) has four square through holes (3), two of which are located at the boss (2) and penetrate the boss (2). The outer side of the body (1) has multiple oil storage grooves (4) evenly distributed. The part of the surface of the body (1) excluding the boss (2) and the through holes (3) has multiple arc-shaped grooves (5), and the arc-shaped grooves (5) are filled with sound-absorbing cotton (6).

2. The high-manganese steel balance block of a scroll compressor according to claim 1, characterized in that, The outer diameter of the body (1) is 54 mm and the inner diameter is 30 mm.

3. The high-manganese steel balance block of a scroll compressor according to claim 2, characterized in that, The diameter of the through hole (3) is 4.3 mm, and the centers of the four through holes (3) are on the same circular ring with a diameter of 38 mm.

4. The high-manganese steel balance block of a scroll compressor according to claim 3, characterized in that, The height of the body (1) is 2.8 mm, and the height of the boss (2) is 22 mm.

5. The high-manganese steel balance block of a scroll compressor according to claim 1, characterized in that, The arc-shaped grooves (5) are arranged sequentially towards the center on the surface of the body (1).

6. The high-manganese steel balance block of a scroll compressor according to claim 1, characterized in that, The "7"-shaped corner of the boss (2) is rounded, and the size of the rounded corner is less than R1.

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