Speed reducer shell in split connection
The split-connected reducer housing design uses laser cutting and roll riveting welding technology to solve the high cost problem of existing reducer housings, achieving the effect of saving materials and improving quality.
Patent Information
- Application Number
- CN202423097906.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing reducer housing is processed by drawing the whole plate, which is very expensive. How to reduce costs while ensuring quality has become a difficult problem in the industry.
The reducer housing adopts a split-connected design. Metal pipes are formed into hollow cylindrical blanks through laser cutting, and the body and end cover are connected by roll riveting and welding. The conical mating surface and welding fusion point are combined to improve the sealing and strength.
The raw material and production costs are reduced, while the sealing and strength of the product are improved, oil leakage is prevented, and the firmness of the joint is ensured.
Smart Images
Figure CN223344641U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of speed reducers, and in particular relates to a split-connected speed reducer housing. Background Art
[0002] The reducer is a deceleration component in household appliances, including washing machines. It can convert the high-speed motor speed into the low speed required for washing in the washing machine, preventing clothes from being damaged during high-speed operation. The outer shell surface of this reducer is also the mounting contact surface of the brake belt, so its quality is particularly important.
[0003] However, the current reducer housing, for reducers in the washing machine industry, is processed by drawing the entire plate, which uses thick materials and is expensive. The industry is seriously involuted. How to reduce costs while ensuring quality and adopt new processes to form new structures to achieve energy saving and consumption reduction is a technical problem that we urgently need to solve. Utility Model Content
[0004] The purpose of the utility model is to provide a split-connected reducer housing to solve the above-mentioned technical problems existing in the prior art.
[0005] According to the above purpose, the basic technical solution of the utility model is: a split-connected reducer housing, including a cylindrical body, characterized in that: the body is formed into a hollow cylindrical blank by a metal pipe through a blanking process, one end of the hollow cylindrical blank is provided with a sub-mouth by machining, and an end cover is engaged with the sub-mouth, and the end cover is formed into a disc shape by stamping and blanking of a thin plate, and the disc shape is formed into a boss protruding to one side by stamping and stretching, and the boss is reversely stamped to form an inner hole in the middle, and the body is engaged with the end cover at the sub-mouth by rolling rivets.
[0006] Furthermore, the blanking process is a laser cutting process.
[0007] Furthermore, the contact surface of the sub-mouth is a conical surface.
[0008] More specifically, the angle of the cone is 45 degrees.
[0009] Furthermore, the end cover is provided with an engaging surface that cooperates with the sub-opening of the body.
[0010] More specifically, a step surface is provided on the other side of the end cover relative to the engaging surface with the sub-mouth.
[0011] Furthermore, a rounded corner is provided at the connection between the boss and the end cover.
[0012] Furthermore, the inner opening at the upper end of the inner hole is chamfered by cutting the edges.
[0013] In the above-mentioned split-connected reducer housing, the body and the end cover are further provided with fusion points formed by welding at the rolling rivets.
[0014] More specifically, the fusion points are evenly arranged around the riveted joint.
[0015] Compared with the prior art, the advantages and beneficial effects of this utility model are:
[0016] 1. This utility model connects the separate body and end cover into one piece by rolling riveting, which not only saves raw materials but also effectively reduces process costs;
[0017] 2. The body of the product of this utility model can be cut by laser cutting process, which is not only fast in efficiency, but also can effectively save pipe materials and reduce production costs because the laser cutting surface is flat and thin;
[0018] 3. The body and the end cap of the utility model are meshed through a conical sub-mouth, which can form a dense meshing surface, effectively preventing oil leakage and improving product quality;
[0019] 4. The body and the end cover of the utility model are also provided with a fusion point formed by welding at the rolling riveting position, so the joint is firm. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the product of the utility model;
[0021] Figure 2 This is a front view structural diagram of the utility model product;
[0022] Figure 3 for Figure 2 BB cross-sectional structure diagram;
[0023] In the figure: 1. Main body; 2. End cover; 3. Sub-mouth; 4. Boss; 5. Inner hole; 6. Step surface; 7. Fillet; 8. Chamfer. DETAILED DESCRIPTION
[0024] Combine Figures 1 to 3, is a schematic diagram of the principle structure of an embodiment of a split-connected reducer housing of the present invention. The split-connected reducer housing includes a cylindrical body 1. The body 1 is formed into a hollow cylindrical blank by a laser cutting process through a metal pipe. One end of the hollow cylindrical blank is provided with a sub-mouth 3 through machining. In order to improve the sealing performance of the meshing surface, the contact surface of the sub-mouth 3 is a 45-degree cone surface. The sub-mouth 3 is meshed with an end cover 2. The end cover 2 is provided with a meshing surface that cooperates with the sub-mouth 3 of the body 1. The other side of the end cover 2 relative to the meshing surface with the sub-mouth 3 A step surface 6 is provided on the surface. The end cover 2 is formed into a disc shape by stamping and blanking of a thin plate. The disc shape is formed into a boss 4 protruding to one side by stamping and stretching. In order to improve the strength of the boss 4, a fillet 7 is provided at the connection between the boss 4 and the end cover 2. The boss 4 is reversely stamped to form an inner hole 5 in the middle. The inner mouth of the upper end of the inner hole 5 is formed with a chamfer 8 by cutting the edge. The main body 1 is meshed with the end cover 2 at the sub-mouth 3 by rolling rivets. The main body 1 and the end cover 2 are also provided with a fusion point formed by welding at the rolling rivet. The fusion point is evenly arranged around the riveted joint.
[0025] During processing, the first step is to use the metal pipe to form a hollow cylindrical blank through a laser cutting process, and then form a 45-degree conical sub-mouth 3 at one end of the cylindrical blank through machining, and the sub-product 3 still retains a rolling riveted wall; the second step is to form a disc by punching and blanking the thin plate, and the disc is punched and stretched to form a boss 4 with a round cap protruding to one side. In order to improve the strength of the boss 4, the connection between the boss 4 and the end cover 2 is formed into a fillet 7 through a mold, and the boss 4 is reversely punched to form the round cap into an inner hole 5 in the middle, and the inner mouth of the upper end of the inner hole 5 is formed. The chamfer 8 is formed by trimming, which not only ensures the axial dimension but also facilitates the press-fitting in the next process. The lower end face of the boss 4 is then machined to form a 45-degree conical surface that matches the main body 1, and a step surface 6 is formed on the other side opposite to the conical surface. In the third step, the main body 1 with the processed sub-mouth 3 is placed in the rolling riveting machine, and the end cover 2 is placed. The conical surface of the end cover 2 is fitted into the sub-mouth 3 of the main body 1. Note that the inner hole 5 of the end cover 2 is concentric with the outer cylindrical surface of the main body 1. Start the riveting machine, rivet the end cover 2 and the main body 1 into one, and then use a welding machine to weld at the riveted joint to form a circumferentially uniform fusion point.
[0026] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.
[0027] Although this document frequently uses the following terms: 1. body; 2. end cap; 3. spigot; 4. boss; 5. inner hole; 6. stepped surface; 7. fillet; 8. chamfer, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.
[0028] The above is an introduction to the split-connected reducer housing provided by the present invention. The introduction uses specific preferred embodiments to illustrate the principles and implementation methods of the present invention. These embodiments are only used to help understand the principles and core ideas of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the design ideas of the present invention, the implementation plans in the above embodiments can be further combined or replaced, and the present invention can be improved and modified in several ways. These improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims
1. A split-connected reducer housing, comprising a cylindrical body (1), characterized in that: The body (1) is formed into a hollow cylindrical blank by a blanking process of a metal pipe, one end of the hollow cylindrical blank is provided with a sub-mouth (3) by machining, the sub-mouth (3) is engaged with an end cover (2), the end cover (2) is formed into a disc shape by stamping and blanking a thin plate, the disc shape is formed into a boss (4) protruding to one side by stamping and stretching, the boss (4) is formed into an inner hole (5) in the middle by reverse stamping, and the body (1) is engaged with the end cover (2) at the sub-mouth (3) by rolling riveting.
2. The split-connected reducer housing according to claim 1, characterized in that: The blanking process is a laser cutting process.
3. The split-connected reducer housing according to claim 1, characterized in that: The contact surface of the sub-mouth (3) is a conical surface.
4. The split-connected reducer housing according to claim 3, characterized in that: The angle of the cone is 45 degrees.
5. The split-connected reducer housing according to claim 1, characterized in that: The end cover (2) is provided with an engaging surface that matches the sub-opening (3) of the body (1).
6. The split-connected reducer housing according to claim 5, characterized in that: A step surface (6) is provided on the other side of the end cover (2) relative to the engaging surface with the sub-mouth (3).
7. The split-connected reducer housing according to claim 1, characterized in that: A rounded corner (7) is provided at the connection point between the boss (4) and the end cover (2).
8. The split-connected reducer housing according to claim 1, characterized in that: The inner opening of the upper end of the inner hole (5) is formed with a chamfer (8) by cutting the edge.
9. The split-connected reducer housing according to any one of claims 1 to 8, characterized in that: The body (1) and the end cover (2) are also provided with a fusion point formed by welding at the rolling riveting position.
10. The split-connected reducer housing according to claim 9, characterized in that: The fusion points are evenly arranged around the riveted joint.