Novel motor connecting mechanism
By designing a transition sleeve structure that includes internal and external splines, the problem of inconsistent spline parameters in the motor connection mechanism was solved, achieving high-precision tooth flank fit and improving the reliability and service life of the connection.
Patent Information
- Application Number
- CN202520581245.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional motor connection mechanisms suffer from inconsistent spline parameters between the motor shaft and the transfer case shaft, making it difficult to achieve high-precision tooth flank engagement. This results in reduced connection tightness and reduced service life.
The design includes a first, second and third transition sleeve, each with an internal spline and an external spline. The sleeve is connected by elastic washers and screws to achieve a high-precision fit between the motor output shaft and the transfer case input shaft, eliminating backlash caused by machining.
It improves the connection reliability and service life of the motor connection mechanism, reduces wear, and achieves high-precision tooth flank mating.
Smart Images
Figure CN223872137U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical transmission technology, specifically a novel motor connection mechanism. Background Technology
[0002] In automated mechanical systems, the motor is the core power source, and the reliability of its connection with the actuator directly affects the overall system performance. In mining car systems, the motor output shaft and the transfer case input shaft are usually connected by a connecting mechanism. In traditional motor connecting mechanisms, one end of the transition sleeve is connected to the motor shaft, and the other end is connected to the transfer case shaft. Since the spline parameters of the motor shaft and the transfer case shaft are inconsistent, it is difficult to achieve high-precision tooth flank fit through machining, which reduces the tightness of the connection between the motor and the transfer case. Utility Model Content
[0003] The main technical problem to be solved by this utility model is to provide a novel motor connection mechanism, which can eliminate the tooth backlash between the original devices, improve the reliability of the connection, and thus improve the service life of the structure.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] A novel motor connection mechanism includes a first transition sleeve with two inner grooves inside, each groove containing a matching elastic washer. A second transition sleeve is inserted into one end of the first transition sleeve, and a third transition sleeve is inserted into the other end of the first transition sleeve. The second and third transition sleeves abut against the two elastic washers. A transfer case input shaft is inserted into the second transition sleeve, and a motor output shaft is inserted into the third transition sleeve.
[0006] The following are further optimizations of the above technical solution by this utility model:
[0007] The first transition sleeve has a first internal spline inside, the second transition sleeve has a first external spline on its outer surface, and the third transition sleeve has a second external spline on its outer surface.
[0008] Further optimization: The first external spline and the second external spline are coupled with the first internal spline.
[0009] Further optimization: A second internal spline is provided on the inner side wall of the second transition sleeve, and a third external spline is provided on the outer side wall of the part into which the transfer case input shaft is inserted. The second internal spline and the third external spline cooperate with each other.
[0010] Further optimization: A third internal spline is provided inside the third transition sleeve, and a fourth external spline is provided on the outer wall of the part into which the motor output shaft is inserted. The third internal spline and the fourth external spline cooperate with each other.
[0011] Further optimization: Several internal threaded holes are provided on the outer surfaces of the first transition sleeve, the second transition sleeve and the third transition sleeve. The first transition sleeve and the second transition sleeve are detachably connected by several first screws, and the first transition sleeve and the third transition sleeve are detachably connected by several second screws.
[0012] Further optimization: Several internal threaded holes are provided on the outer surfaces of the transfer case input shaft and the motor output shaft. The transfer case input shaft and the second transition sleeve are detachably connected by several third screws, and the motor output shaft and the third transition sleeve are detachably connected by several fourth screws.
[0013] This utility model adopts the above-mentioned technical solution, which is ingenious and reasonable in structure. Through the design of the second transition sleeve and the third transition sleeve, it is convenient to design according to the spline size of the motor output shaft and the transfer case input shaft, avoiding direct engagement between the motor output shaft and the transfer case input shaft and the first transition sleeve. This enables high-precision tooth flank engagement, improves the reliability of the connection, reduces wear, and thus improves the service life of the motor connection mechanism.
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0016] Figure 2 This is an exploded view of an embodiment of the present utility model.
[0017] In the diagram: 1. First transition sleeve; 11. Inner groove; 12. First internal spline; 13. First screw; 14. Second screw; 2. Elastic washer; 3. Second transition sleeve; 31. First external spline; 32. Second internal spline; 33. Third screw; 4. Third transition sleeve; 41. Second external spline; 42. Third internal spline; 43. Fourth screw; 5. Transfer case input shaft; 51. Third external spline; 6. Motor output shaft; 61. Fourth external spline. Detailed Implementation
[0018] like Figure 1-2 As shown: A novel motor connection mechanism includes a first transition sleeve 1, which has two inner grooves 11. Each inner groove 11 is fitted with a matching elastic washer 2. A second transition sleeve 3 is inserted into one end of the first transition sleeve 1, and a third transition sleeve 4 is inserted into the other end of the first transition sleeve 1. The second transition sleeve 3 and the third transition sleeve 4 are in contact with the two elastic washers 2. A transfer case input shaft 5 is inserted into the second transition sleeve 3, and a motor output shaft 6 is inserted into the third transition sleeve 4.
[0019] In this embodiment, the elastic washer 2 can be made of polyurethane material or metal. The elastic washer 2 is used to accommodate the axial movement of the second transition sleeve 3 and the third transition sleeve 4 when they are engaged with the first transition sleeve 1.
[0020] The first transition sleeve 1 has a first internal spline 12 inside, the second transition sleeve 3 has a first external spline 31 on its outer side, and the third transition sleeve 4 has a second external spline 41 on its outer side.
[0021] The first external spline 31 and the second external spline 41 are engaged with the first internal spline 12.
[0022] This design, through the structural design of the second transition sleeve 3 and the third transition sleeve 4, ensures that the dimensions of both ends of the first transition sleeve 1 are consistent. This eliminates the need to design and process both ends of the first transition sleeve 1 separately according to the dimensions of the motor output shaft 6 and the transfer case input shaft 5, thereby improving processing accuracy.
[0023] The second transition sleeve 3 has a second internal spline 32 on its inner side wall, and the transfer case input shaft 5 is inserted into the outer side wall of the part of the second transition sleeve 3 with a third external spline 51. The second internal spline 32 and the third external spline 51 cooperate with each other.
[0024] The third transition sleeve 4 has a third internal spline 42, and the motor output shaft 6 is inserted into the outer wall of the third transition sleeve 4, where a fourth external spline 61 is provided. The third internal spline 42 and the fourth external spline 61 cooperate with each other.
[0025] During machining, the third internal spline 42 and the second internal spline 32 can be designed based solely on the dimensions of the fourth external spline 61 on the motor output shaft 6 and the third external spline 51 on the transfer case input shaft 5, eliminating backlash caused by machining and improving the reliability of the connection.
[0026] The outer surfaces of the first transition sleeve 1, the second transition sleeve 3 and the third transition sleeve 4 are each provided with a number of internal threaded holes. The first transition sleeve 1 and the second transition sleeve 3 are detachably connected by a number of first screws 13, and the first transition sleeve 1 and the third transition sleeve 4 are detachably connected by a number of second screws 14.
[0027] The outer surfaces of the transfer case input shaft 5 and the motor output shaft 6 are provided with several internal threaded holes. The transfer case input shaft 5 and the second transition sleeve 3 are detachably connected by several third screws 33, and the motor output shaft 6 and the third transition sleeve 4 are detachably connected by several fourth screws 43.
[0028] This design improves the tightness of the connections between the transition sleeves and between the transition sleeves and the shaft, making it easier to use.
[0029] Working principle: Through the cooperation between the motor output shaft 6 and the third transition sleeve 4, the transfer case input shaft 5 and the second transition sleeve 3, the first transition sleeve 1 and the second transition sleeve 3, and the first transition sleeve 1 and the third transition sleeve 4, the power from the motor side can be output to the transfer case side. The design of the second transition sleeve 3 and the third transition sleeve 4 facilitates the design based on the spline dimensions of the motor output shaft 6 and the transfer case input shaft 5, avoiding direct cooperation between the motor output shaft 6 and the transfer case input shaft 5 and the first transition sleeve 1. This enables high-precision gear side cooperation, improves the reliability of the connection, reduces wear, and thus extends the service life of the motor connection mechanism.
[0030] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.
Claims
1. A novel motor connection mechanism, characterized in that: Includes a first transition sleeve (1), which has two inner grooves (11) inside. Each inner groove (11) is equipped with a matching elastic washer (2). A second transition sleeve (3) is inserted into one end of the first transition sleeve (1), and a third transition sleeve (4) is inserted into the other end of the first transition sleeve (1). The second transition sleeve (3) and the third transition sleeve (4) are in contact with the two elastic washers (2). The transfer case input shaft (5) is inserted into the second transition sleeve (3), and the motor output shaft (6) is inserted into the third transition sleeve (4).
2. The novel motor connection mechanism according to claim 1, characterized in that: The first transition sleeve (1) has a first internal spline (12) inside, the second transition sleeve (3) has a first external spline (31) on its outer side, and the third transition sleeve (4) has a second external spline (41) on its outer side.
3. The novel motor connection mechanism according to claim 2, characterized in that: The first external spline (31) and the second external spline (41) are coupled with the first internal spline (12).
4. The novel motor connection mechanism according to claim 3, characterized in that: The second transition sleeve (3) has a second internal spline (32) on its inner side wall, and the transfer case input shaft (5) is inserted into the outer side wall of the second transition sleeve (3) with a third external spline (51) on its outer side wall. The second internal spline (32) and the third external spline (51) cooperate with each other.
5. A novel motor connection mechanism according to claim 4, characterized in that: The third transition sleeve (4) has a third internal spline (42) inside, and the motor output shaft (6) is inserted into the outer side wall of the third transition sleeve (4) with a fourth external spline (61) on it. The third internal spline (42) and the fourth external spline (61) cooperate with each other.
6. A novel motor connection mechanism according to claim 5, characterized in that: The first transition sleeve (1), the second transition sleeve (3) and the third transition sleeve (4) are provided with several internal threaded holes on their outer surfaces. The first transition sleeve (1) and the second transition sleeve (3) are detachably connected by several first screws (13), and the first transition sleeve (1) and the third transition sleeve (4) are detachably connected by several second screws (14).
7. A novel motor connection mechanism according to claim 6, characterized in that: The transfer case input shaft (5) and the motor output shaft (6) are provided with several internal threaded holes on their outer surfaces. The transfer case input shaft (5) and the second transition sleeve (3) are detachably connected by several third screws (33), and the motor output shaft (6) and the third transition sleeve (4) are detachably connected by several fourth screws (43).