Low-voltage servo electric grinding machine with square structure
By designing a square-structured low-pressure servo electric grinder, combining pneumatic and electric grinders, the problems of insufficient power, short lifespan, and high noise of pneumatic grinders were solved, achieving intelligent control and high-efficiency grinding with low noise.
Patent Information
- Application Number
- CN202520387904.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing pneumatic grinders suffer from problems such as insufficient power, short lifespan, high noise levels, lack of intelligent control, and noise pollution.
Design a square-structured low-pressure servo electric grinder that combines the eccentric structure of a pneumatic grinder with that of an electric grinder. It is driven by a motor to achieve intelligent control and noise reduction design, with a speed of up to 10000 N/min.
It achieves a stable polishing trajectory and uniform polishing texture, with noise controlled below 45 decibels, improving polishing efficiency and equipment lifespan.
Smart Images

Figure CN223863558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding machine technology, specifically a square-structured low-voltage servo electric grinding machine. Background Technology
[0002] Currently, there are no electrically powered reciprocating grinding machines on the market; the industry is currently using pneumatic grinding machines. However, pneumatic eccentric grinding machines have the following drawbacks: 1. Insufficient power, making them prone to jamming under stress; 2. Short service life, with rapid wear on the rotor and blade cylinder at high speeds; 3. Unmonitorable rotation speed, lack of direct alarms indicating damage, requiring manual inspection and preventing automation and intelligent operation; 4. Driven by compressed air, noise levels exceed 85 decibels, easily causing noise pollution in surrounding workshops.
[0003] Therefore, the market needs to develop a square-structured low-voltage servo electric grinder to solve the aforementioned technical problems. Utility Model Content
[0004] The purpose of this invention is to provide a square-structured low-voltage servo electric grinder to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a square-structured low-voltage servo electric grinder, including a grinder housing, a motor body installed inside the grinder housing, a bearing structure installed on the output shaft end of the motor body, an eccentric block installed at the lower end of the bearing structure, an elastic retaining ring installed above the bearing structure, a bearing inner ring fixing ring embedded inside the elastic retaining ring, and a waterproof sealing plate, a sealing ring, and a grinding disc mounting plate installed below the grinder housing.
[0006] Preferably, the bearing structure is externally encased with a bearing mounting body, the bearing structure is embedded inside the bearing mounting body, and the eccentric block is tightly fitted to the lower end surface of the bearing mounting body.
[0007] Preferably, the sealing ring is tightly fitted between the waterproof sealing plate and the grinding disc mounting plate, and a foot post is installed between the waterproof sealing plate and the grinding disc mounting plate.
[0008] Preferably, the grinding machine housing is fixedly connected to the feet by screws.
[0009] Preferably, a bearing cap is installed at the upper end of the bearing structure.
[0010] Preferably, the output end of the motor body is connected to a cooling fan via a rotating shaft.
[0011] Preferably, a grinding machine fixing plate is fixedly connected to the upper end of the grinding machine housing by connecting screws. The surface of the grinding machine fixing plate is equipped with locking screws. There are five connecting screws and four locking screws. Connecting slots are provided at corresponding positions on the surfaces of the grinding machine housing and the grinding machine fixing plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention achieves intelligent control by directly using a motor drive and specifying the rotation speed according to different processes. The motor operates quietly, with noise levels controlled below 45 decibels. At the same time, the motor speed can reach 10,000 N / min, improving polishing efficiency. The combination of the eccentric structure of the pneumatic polisher and the electric polisher effectively utilizes the eccentric structure of the pneumatic polisher on the motor, resulting in a more stable polishing trajectory and more uniform polishing texture. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the exploded decomposition structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the bottom structure of this utility model.
[0017] In the diagram: 1. Connecting screw; 2. Grinding machine mounting plate; 3. Locking screw; 4. Grinding machine housing; 5. Motor body; 6. Foot; 7. Bearing cap; 8. Bearing inner ring retaining ring; 9. Elastic retaining ring; 10. Bearing structure; 11. Bearing mounting body; 12. Eccentric block; 13. Waterproof sealing plate; 14. Sealing ring; 15. Grinding disc mounting plate; 16. Cooling fan. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Please see Figure 1-3An embodiment of this utility model is provided: a square-structured low-voltage servo electric grinder, including a grinder housing 4, a motor body 5 installed inside the grinder housing 4, a bearing structure 10 installed on the output shaft end of the motor body 5, an eccentric block 12 installed at the lower end of the bearing structure 10, an elastic retaining ring 9 installed above the bearing structure 10, a bearing inner ring fixing ring 8 embedded inside the elastic retaining ring 9, and a waterproof sealing plate 13, a sealing ring 14, and a grinding disc mounting plate 15 respectively installed below the grinder housing 4.
[0020] Furthermore, the bearing structure 10 is externally wrapped with a bearing mounting body 11, and the bearing structure 10 is embedded inside the bearing mounting body 11. The eccentric block 12 is tightly attached to the lower end surface of the bearing mounting body 11. By combining the eccentric structure of the pneumatic grinder with the electric grinder, the eccentric block 12 inside the pneumatic grinder is effectively utilized on the motor, making the polishing trajectory more stable and the polishing texture more uniform.
[0021] Furthermore, the sealing ring 14 is tightly fitted between the waterproof sealing plate 13 and the grinding disc mounting plate 15, providing a good sealing and protection effect to prevent leakage. A foot post 6 is installed between the waterproof sealing plate 13 and the grinding disc mounting plate 15, and the grinding machine housing 4 is fixedly connected to the foot post 6 by screws, which has the advantages of tight and stable connection and convenient installation and fixing.
[0022] Furthermore, a bearing cap 7 is installed on the upper end of the bearing structure 10.
[0023] Furthermore, the output end of the motor body 5 is connected to a cooling fan 16 via a rotating shaft. Under the drive control of the motor body 5, the cooling fan 16 is made to run quickly, which can quickly dissipate heat from the grinding mechanism.
[0024] Furthermore, the upper end of the grinder housing 4 is fixedly connected to the grinder fixing plate 2 by connecting screws 1. The surface of the grinder fixing plate 2 is equipped with locking screws 3. There are five connecting screws 1 and four locking screws 3. Connecting slots are provided at corresponding positions on the surfaces of the grinder housing 4 and the grinder fixing plate 2, which facilitates quick alignment and fixing between the grinder housing 4 and the grinder fixing plate 2, and has the advantage of convenient installation and fixing.
[0025] Working principle: During use, the motor body 5 is installed inside the outer shell 4 of the grinder. A bearing structure 10 is installed on the output shaft end of the motor body 5. A bearing mounting body 11 is installed outside the bearing structure 10. The bearing structure 10 is embedded inside the bearing mounting body 11. The eccentric block 12 is tightly attached to the lower end surface of the bearing mounting body 11. By combining the eccentric structure of the pneumatic grinder with that of the electric grinder, the eccentric block 12 inside the pneumatic grinder is effectively utilized on the motor, resulting in a more stable polishing trajectory and polishing texture. For more uniform grinding, a waterproof sealing plate 13, a sealing ring 14, and a grinding disc mounting plate 15 are installed on the lower part of the grinding machine housing 4. The sealing ring 14 is tightly fitted between the waterproof sealing plate 13 and the grinding disc mounting plate 15, providing a good sealing and protection effect to prevent leakage. Through the good sealing and protection design of this device, the motor runs relatively quietly, and the noise can be controlled below 45 decibels to prevent noise pollution. At the same time, the motor speed can reach 10,000 N / min, improving grinding efficiency.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0028] 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 square-structured low-voltage servo electric grinder, comprising a grinder housing (4), characterized in that, The inside of the grinding machine housing (4) is equipped with a motor body (5). A bearing structure (10) is installed on the output shaft end of the motor body (5). An eccentric block (12) is installed at the lower end of the bearing structure (10). An elastic retaining ring (9) is installed above the bearing structure (10). An inner ring retaining ring (8) is embedded inside the elastic retaining ring (9). A waterproof sealing plate (13), a sealing ring (14), and a grinding disc mounting plate (15) are installed below the grinding machine housing (4).
2. The square-structured low-voltage servo electric grinder according to claim 1, characterized in that: The bearing structure (10) is externally wrapped with a bearing mounting body (11), and the bearing structure (10) is embedded inside the bearing mounting body (11). The eccentric block (12) is tightly fitted to the lower end surface of the bearing mounting body (11).
3. The low-voltage servo electric grinder with a square structure according to claim 1, characterized in that: The sealing ring (14) is tightly fitted between the waterproof sealing plate (13) and the grinding disc mounting plate (15), and a foot post (6) is installed between the waterproof sealing plate (13) and the grinding disc mounting plate (15).
4. A square-structured low-voltage servo electric grinder according to claim 3, characterized in that: The grinding machine housing (4) is fixedly connected to the foot post (6) by screws.
5. A square-structured low-voltage servo electric grinder according to claim 1, characterized in that: The upper end of the bearing structure (10) is fitted with a bearing cap (7).
6. A square-structured low-voltage servo electric grinder according to claim 1, characterized in that: The output end of the motor body (5) is connected to a cooling fan (16) via a rotating shaft.
7. A square-structured low-voltage servo electric grinder according to claim 1, characterized in that: The upper end of the grinding machine housing (4) is fixedly connected to the grinding machine fixing plate (2) by connecting screws (1). The surface of the grinding machine fixing plate (2) is equipped with locking screws (3). There are five connecting screws (1) and four locking screws (3). Connecting slots are provided at corresponding positions on the surfaces of the grinding machine housing (4) and the grinding machine fixing plate (2).