Replaceable internal spline shaft
By designing a replaceable internal spline shaft and using involute internal spline sleeves and pin structures, the problems of long production cycle and poor versatility of existing motor shafts are solved, and low-cost and efficient motor shaft production and inventory management are achieved. .
Patent Information
- Application Number
- CN202421401369.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-06-14
AI Technical Summary
When existing motor shafts are processed in the internal splines, slight changes in the number of teeth, modulus and tolerances lead to the need to be reprocessed, resulting in long production cycles, poor versatility and difficult inventory management.
Design a replaceable inner spline shaft, including hollow shaft body, involute inner spline sleeve, pin and retaining ring, and achieve rapid spline through the transition fit of involute inner spline sleeve and pin hole structure. Replace and install.
It reduces production costs and cycles, improves the versatility of motor shafts, reduces inventory and supply time, and adapts to the motor production of different users' needs.
Smart Images
Figure CN222315653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor shafts, in particular to a replaceable internal spline shaft. Background Art
[0002] The motor is used in a special environment. The operation of the motor is an energy conversion function, which converts electrical energy into mechanical energy or mechanical energy into electrical energy. In the process of transmitting mechanical energy, the motor and its mechanical parts are usually connected by the motor shaft and its mechanical parts. Flat key or spline connection is more common. In the process of processing internal splines, there are two methods: 1. Gear inserting, 2. Broaching. No matter which processing method is used, only one type of spline can be processed on a shaft. When supporting different users, if the user has slight changes in the number of teeth, module, tolerance, etc. of the spline, the spline of the shaft needs to be reprocessed.
[0003] The shaft is the component that transmits energy from the motor to the external machinery. During the production process, it requires many steps such as cutting, tempering, turning, finishing, spline surface quenching, etc. The production cycle is relatively long. For motors with the same appearance but different shaft splines, the versatility is poor, which easily leads to inventory and is a headache for factories. Summary of the invention
[0004] The utility model aims to provide a replaceable internal spline shaft.
[0005] A replaceable internal spline shaft comprises a hollow shaft body, an involute internal spline sleeve, a pin and a retaining ring. An involute internal spline is arranged at one end of the hollow shaft body, the involute internal spline sleeve is sleeved on the involute internal spline, a first semicircular hole is arranged on the outer side of the hollow shaft body, a second semicircular hole is arranged on the outer circle of the involute internal spline sleeve, a pin hole is formed after the first semicircular hole and the second semicircular hole are butted together, the pin is inserted into the pin hole, and the retaining ring is mounted on the involute internal spline sleeve.
[0006] Preferably, four first semicircular holes are opened on the outer side of the hollow shaft body, and four second semicircular holes are opened on the outer circle of the involute inner spline sleeve. The four first semicircular holes and the four second semicircular holes form a pin hole, and four pins are respectively inserted into the four pin holes.
[0007] The utility model processes the outer circle of the involute internal spline sleeve into a circle that can be transitionally matched with the hollow shaft body, the transitional match is a tolerance match, a second semicircular hole is processed at a corresponding position of the outer circle of the involute internal spline sleeve, a first semicircular hole is opened on the outer side of the hollow shaft body, the involute internal spline sleeve is frozen and then installed into the hollow shaft body, the first semicircular hole and the second semicircular hole are butted to form a pin hole, a pin is installed at a position corresponding to the pin hole, and a retaining ring is installed, the retaining ring is used to prevent the involute spline sleeve from axial movement.
[0008] The involute spline sleeve of the utility model has low production cost, short production cycle and strong versatility; the factory can produce a variety of involute spline sleeves, and the same motor can be installed with the involute spline sleeve according to different user requirements after production, which effectively reduces the factory's motor inventory and production costs, and shortens the delivery cycle for users with the same appearance but different involute spline requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of a replaceable internal spline shaft from one perspective;
[0010] Figure 2 for Figure 1 Schematic diagram of the medium AA viewing angle structure;
[0011] Figure 3 It is a structural schematic diagram of an involute internal spline sleeve from one perspective;
[0012] Figure 4 It is a structural schematic diagram of the involute internal spline sleeve from another perspective;
[0013] Figure 5 It is a schematic diagram of the structure of the hollow shaft body;
[0014] Figure 6 for Figure 5 Schematic diagram of the structure from the perspective of the middle BB;
[0015] In the figure: hollow shaft body 1, involute internal spline sleeve 2, pin 3, retaining ring 4, first semicircular hole a, second semicircular hole b. DETAILED DESCRIPTION
[0016] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model is now clearly and completely described in the form of specific embodiments in combination with the accompanying drawings.
[0017] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A replaceable internal spline shaft comprises a hollow shaft body 1, an involute internal spline sleeve 2, a pin 3 and a retaining ring 4. An involute internal spline is provided at one end of the hollow shaft body 1, and the involute internal spline sleeve 2 is sleeved on the involute internal spline. A first semicircular hole a is provided on the outer side of the hollow shaft body 1, and a second semicircular hole b is provided on the outer circle of the involute internal spline sleeve 2. A pin hole is formed after the first semicircular hole a and the second semicircular hole b are butt-jointed. The pin 3 is inserted into the pin hole, and the retaining ring 4 is mounted on the involute internal spline sleeve 2 to prevent the involute spline sleeve from moving axially.
[0018] Preferably, four first semicircular holes a are opened on the outer side of the hollow shaft body 1, and four second semicircular holes b are opened on the outer circle of the involute inner spline sleeve 2. The four first semicircular holes a and the four second semicircular holes b form four pin holes, and four pins 3 are respectively inserted into the four pin holes.
[0019] The utility model processes the outer circle of the involute internal spline sleeve 2 into a circle that can be transitionally matched with the hollow shaft body 1. The transitional match is a tolerance match. A second semicircular hole b is processed at a corresponding position of the outer circle of the involute internal spline sleeve 2. A first semicircular hole a is opened on the outer side of the hollow shaft body 1. After the involute internal spline sleeve 2 is frozen, it is installed in the hollow shaft body 1. The first semicircular hole a and the second semicircular hole b are butt-jointed to form a pin hole. A pin 3 is installed at a position corresponding to the pin hole, and a retaining ring 4 is installed. The retaining ring is used to prevent the involute spline sleeve 2 from axial movement.
[0020] The involute spline sleeve 2 of the utility model has low production cost, short production cycle and strong versatility; the factory can produce a variety of involute spline sleeves 2, and after the same motor is produced, the involute spline sleeve 2 can be installed according to the different needs of users, which effectively reduces the factory's motor inventory and production costs, and shortens the delivery cycle for users with the same appearance but different involute spline requirements.
[0021] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementations of the present invention, and the embodiments are only exemplary, and their role is only to provide a more intuitive and clear way to understand the content of the present invention, rather than to limit the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation methods that ordinary technicians in the field can think of without creative work, and other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.
Claims
1. A replaceable internal spline shaft, characterized in that: The replaceable internal spline shaft comprises a hollow shaft body, an involute internal spline sleeve, a pin and a retaining ring. An involute internal spline is arranged at one end of the hollow shaft body, the involute internal spline sleeve is sleeved on the involute internal spline, a first semicircular hole is arranged on the outer side of the hollow shaft body, a second semicircular hole is arranged on the outer circle of the involute internal spline sleeve, a pin hole is formed after the first semicircular hole and the second semicircular hole are butted together, the pin is inserted into the pin hole, and the retaining ring is mounted on the involute internal spline sleeve.
2. The replaceable internal spline shaft according to claim 1, characterized in that: Four first semicircular holes are arranged on the outer side of the hollow shaft body, and four second semicircular holes are arranged on the outer circle of the involute inner spline sleeve. The four first semicircular holes and the four second semicircular holes form a pin hole, and four pins are respectively inserted into the four pin holes.