Motor balance block
By designing a semi-circular motor balance block and installing counterweight strips and symmetrical fixing holes on its outer ring, the problem of material waste in the prior art is solved, efficient use of materials and ensuring the smooth operation of the motor rotor.
Patent Information
- Application Number
- CN202420268266.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-02
AI Technical Summary
There is material waste in existing motor balance blocks during processing, resulting in high manufacturing costs.
Design a motor balance block with a semi-circular body and a counterweight strip is set on the edge of the outer ring. A pair of fixed holes are symmetrically arranged in the left and right directions. The counterweight strips and fixed holes jointly achieve balance and fixing functions to ensure material utilization high.
With this structure, almost no material wasted, the manufacturing cost is reduced, and the smooth operation of the motor rotor is achieved through precise adjustment.
Smart Images
Figure CN222282971U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motors and relates to a motor balancing block. Background Art
[0002] Electronic rotor balancing weights usually refer to a counterweight structure installed in the rotor part of motors, generators and other equipment. Its main function is to eliminate or reduce the vibration and noise caused by uneven mass distribution when the rotor rotates at high speed by accurately adjusting the mass and position of the balancing weights, ensuring the smooth operation of the equipment and improving the working efficiency and service life of the equipment.
[0003] Existing balancing blocks, for example, Chinese patent literature discloses a compressor motor rotor balancing block structure [patent number: 200710057090.8; application publication number: CN101282051A], including a balancing block arranged at the top of the rotor, the balancing block is crescent-shaped and is placed on the outer edge of the top of the rotor, two rectangular concave and convex parts are arranged in the upper middle part of the balancing block, and a rectangular assembly hole is respectively arranged at both ends of the balancing block.
[0004] The balancing block of this structure is installed at the top of the rotor to play the role of counterweight balance. However, the balancing block of this structure is in the shape of a crescent, and the angle between the end faces of the balancing block is 140°. The balancing block is formed by cutting a circular ring, that is, after a circular ring is processed into two balancing blocks, there will be a lot of excess scraps, which will cause great waste and increase the manufacturing cost of the balancing block. Summary of the invention
[0005] The utility model aims to solve the above problems existing in the prior art and proposes a motor balancing block, and the technical problem solved is how to reduce the waste of raw materials.
[0006] The purpose of the utility model can be achieved through the following technical solutions: a motor balance block, including a main body, characterized in that the main body is in a semicircular ring shape, the edge of the outer ring of the main body has a counterweight bar protruding toward one side of the main body, and the main body has a pair of penetrating fixing holes, and the pair of fixing holes are symmetrically arranged along the left and right directions of the main body.
[0007] The main body is in the shape of a semicircular ring, so that one ring can be processed into two balancing blocks, with almost no waste of materials, reducing the waste of raw materials, and thus reducing the manufacturing cost of the balancing block. The main body plays the main role of counterweight balancing, and the counterweight bar plays the auxiliary role of counterweight balancing. Through this balancing block, the balance of the motor rotor can be accurately adjusted to ensure the smooth operation of the motor rotor. The fixing holes are for fasteners to pass through, and the balancing block can be fixed to the rotor of the motor through the fixing holes. A pair of fixing holes are symmetrically arranged along the left and right directions of the main body to make the mass distribution of the balancing block balanced.
[0008] In the above-mentioned motor balancing block, the circumferential outer side wall of the counterweight bar is flush with the circumferential outer side wall of the main body. This structure makes the balancing block more integrated and makes the mass of each part of the balancing block more balanced, and the design is reasonable.
[0009] In the above-mentioned motor balancing block, along the axial direction of the balancing block, the thickness of the main body is greater than the thickness of the counterweight bar. This structure enables the counterweight bar to play a better counterweight role without destroying the balancing effect of the balancing block.
[0010] In the above-mentioned motor balancing block, along the radial direction of the balancing block, the width of the main body is 5-9 times the width of the counterweight bar. This structure enables the counterweight bar to play a better counterweight role without destroying the balancing effect of the balancing block.
[0011] In the above-mentioned motor balancing block, the end faces of the two ends of the main body are located on the same plane. This structure allows a circular ring to be processed into two balancing blocks, with almost no waste of materials, reducing the waste of raw materials, and thus reducing the manufacturing cost of the balancing block.
[0012] In the above-mentioned motor balancing block, the corners at both ends of the main body are rounded to form an arc shape. The rounding treatment allows the balancing block to rotate more smoothly when the rotor drives it to rotate, and the mass of the balancing block can be controlled by the amount of rounding removal, so that the balancing block can play a better balancing and counterweighting role.
[0013] In the above-mentioned motor balancing block, the other side of the main body is a flat surface. The other side of the main body is installed against the rotor, and this structure enables the balancing block to be installed more stably.
[0014] In the above-mentioned motor balancing block, the fixing hole has an annular step surface, and the step surface is located on one side of the main body. The setting of the step surface allows the fastener to be embedded in the fixing hole, so that the fastener will not affect the rotation of the balancing block and the rotation of the rotor.
[0015] Compared with the prior art, the motor balancing block provided by the utility model has the following advantages:
[0016] 1. The main body of the balancing weight is in the shape of a semicircular ring, so that one circular ring can be processed into two balancing weights, with almost no waste of materials, reducing the waste of raw materials, and thus reducing the manufacturing cost of the balancing weight.
[0017] 2. This balancing block has a counterweight bar at the outer ring edge of the main body. The main body plays the main counterweight balancing role, and the counterweight bar plays the auxiliary counterweight balancing role. Through this balancing block, the balance of the motor rotor can be accurately adjusted to ensure the smooth operation of the motor rotor. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the outside of the motor balance block.
[0019] Figure 2 It is a schematic diagram of the overall structure of the inner side of the motor balance block.
[0020] In the figure, 1, main body; 2, counterweight bar; 3, fixing hole; 31, step surface. DETAILED DESCRIPTION
[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0022] like Figure 1 , Figure 2 As shown, the motor balance block includes a main body 1 and a counterweight bar 2, and the main body 1 and the counterweight bar 2 are an integrated structure.
[0023] The main body 1 is in a semicircular ring shape, and the end faces at both ends of the main body 1 are located on the same plane. The corners at both ends of the main body 1 are chamfered to form an arc shape.
[0024] The edge of the outer ring of the main body 1 has a weight bar 2 protruding toward one side of the main body 1. The circumferential outer side wall of the weight bar 2 is flush with the circumferential outer side wall of the main body 1, and the other side of the main body 1 is a flat plane. Along the axial direction of the balance block, the thickness of the main body 1 is greater than the thickness of the weight bar 2. In this embodiment, along the radial direction of the balance block, the width of the main body 1 is 7 times the width of the weight bar 2. In actual production, along the radial direction of the balance block, the width of the main body 1 is 5 times or 9 times the width of the weight bar 2.
[0025] The main body 1 has a pair of penetrating fixing holes 3 , which are symmetrically arranged along the left-right direction of the main body 1 . The fixing holes 3 have an annular step surface 31 , which is located on one side of the main body 1 .
[0026] During installation, fasteners such as bolts or rivets are inserted into the fixing holes 3 and abut against the step surface 31 to fix the balancing weight on the rotor.
[0027] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0028] Although the terms such as main body 1, counterweight bar 2, fixing hole 3, step surface 31 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A motor balancing block, comprising a main body (1), characterized in that The main body (1) is in the shape of a semicircular ring, and the edge of the outer ring of the main body (1) has a counterweight bar (2) protruding toward one side of the main body (1). The main body (1) has a pair of penetrating fixing holes (3), and the pair of fixing holes (3) are symmetrically arranged along the left and right directions of the main body (1). The fixing holes (3) have an annular step surface (31), and the step surface (31) is located on one side of the main body (1).
2. A motor balancing block according to claim 1, characterized in that: The circumferential outer side wall of the counterweight strip (2) is flush with the circumferential outer side wall of the main body (1).
3. A motor balancing block according to claim 1 or 2, characterized in that: Along the axial direction of the balancing block, the thickness of the main body (1) is greater than the thickness of the counterweight bar (2).
4. A motor balancing block according to claim 1 or 2, characterized in that: Along the radial direction of the balancing weight, the width of the main body (1) is 5-9 times the width of the counterweight bar (2).
5. A motor balancing block according to claim 1 or 2, characterized in that: The end surfaces at both ends of the main body (1) are located on the same plane.
6. A motor balancing block according to claim 1 or 2, characterized in that: The corners at both ends of the main body (1) are rounded to form an arc shape.
7. A motor balancing block according to claim 1 or 2, characterized in that: The other side of the main body (1) is a flat surface.