Motor supporting tool
By designing the adapter flange and expansion sleeve, the problem of complicated motor support replacement and alignment operations in the motor-to-drive device was solved, enabling efficient testing of different motor models, simplifying the operation process and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING RUNKE GENERAL TECH
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing motor-driven devices require replacing the motor support and readjusting its position when changing to different models of the motor under test, resulting in high operational difficulty and low efficiency.
The design employs an adapter flange and a shrink sleeve. The flange plate is adapted to the through hole on the motor side, and the neck is adapted to the mounting limit groove of the motor under test, enabling radial positioning of different motor models and avoiding the need to replace the motor support and perform centering operations.
It simplifies the operation of changing different motor models, improves testing efficiency, ensures coaxiality, reduces alignment time and overall work efficiency.
Smart Images
Figure CN224203270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor-assisted tooling technology, specifically to a motor support tooling. Background Technology
[0002] In motor-to-motor setups, it is common to encounter situations where a single motor is used to drive multiple models of motors under test. Existing motor-to-motor devices require alignment of the drive shaft, adapter shaft, and output shaft of the motor under test before loading the test to meet coaxiality requirements. However, because different models of motors under test exist, different motor support brackets need to be used when changing to different models. Therefore, when testing different models of motors under test, the position of the motor support brackets needs to be readjusted to meet coaxiality requirements. This realignment process increases the difficulty of changing different models of motors under test, wastes a significant amount of time, and results in low work efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a motor support fixture. By improving the structure of the motor support fixture, the operational difficulty of changing different models of motors under test is reduced, and the testing efficiency is improved.
[0004] To achieve the above objectives, this utility model provides a motor support fixture, including a motor support base and an adapter flange. The motor support base is connected to the motor under test, the motor under test is provided with an installation limiting groove, and the motor support base is provided with a motor side through hole.
[0005] The adapter flange includes a disc portion and a neck portion that protrudes axially from the disc portion. The disc portion is adapted to fit the motor-side through hole. The neck portion can extend into the mounting limiting groove and abuts against the inner wall of the mounting limiting groove in the radial direction. The adapter flange, the mounting limiting groove, and the motor-side through hole are coaxially arranged.
[0006] By using an adapter flange, where the flange disc mates with the motor-side via and the neck mates with the mounting limit groove of the motor under test (DUT), different neck sizes can be matched to different DUT models. The DUT is radially positioned using the neck, and the disc size only needs to be adapted to the motor-side via of the motor support. Therefore, when testing different DUT models, the original method of replacing the motor support is replaced with replacing the adapter flange of a different model, eliminating the need to replace the motor support or perform alignment operations. Since the adapter flange and the motor-side via are coaxially aligned, and the mounting limit groove is also coaxially aligned with the adapter flange, the coaxiality of different adapter flange models, corresponding different DUT models, and the motor-side via can be guaranteed. Thus, by using the adapter flange, alignment operations for the DUT are no longer required, improving testing efficiency.
[0007] Optionally, the wall of the motor-side through-hole is provided with a stepped groove, which is formed by a portion of the hole wall being recessed outward; at least a portion of the disc is located within the stepped groove and abuts radially against the sidewall of the stepped groove, and the stepped groove is coaxially arranged with the motor-side through-hole. By placing part or all of the disc in the stepped groove, the stepped groove acts as a limit for the disc, thereby ensuring the coaxiality of the adapter flange and the motor-side through-hole when installing the adapter flange. Simultaneously, it also prevents the position of the adapter flange from shifting during testing, which could affect the test results.
[0008] Optionally, the motor under test has a main body and a flanged part, the flanged part being formed by outward folding of the outer wall of the main body, and the flanged part being used to connect with the motor support base;
[0009] The front end face of the disc is axially pressed against the bottom wall of the stepped groove, and the rear end face of the disc is used to abut against the flange. In this way, the flange abuts against the motor support in the axial direction, and the flange presses the disc against the bottom wall of the groove, thereby fixing the disc in the axial direction by cooperating with the bottom wall of the groove.
[0010] Optionally, the flange extends axially from the main body, and the inner ring sidewall of the flange and the end face of the main body together define the mounting limiting groove;
[0011] The inner ring sidewall of the flange abuts radially against the outer wall of the neck. The stepped groove and flange allow for positioning of the transition flange radially outward and inward, effectively preventing misalignment of the transition flange during testing and ensuring accurate testing.
[0012] Optionally, the flanged portion has at least two bolt holes, and the motor support base has matching holes corresponding to the bolt holes. The flanged portion and the motor support base are connected by bolts. This method enables a detachable connection between the motor under test and the motor support base, facilitating the replacement of the motor under test.
[0013] Optionally, the outer diameter of the disc is larger than the outer diameter of the neck. By adjusting the outer diameter of the neck, the radial dimension of the mounting limit groove of different models of motors under test can be adapted.
[0014] Optionally, the system also includes an adapter shaft, a tightening sleeve, and a drive shaft. One end of the adapter shaft passes through the motor-side through-hole and the mounting limiting groove to connect with the output end of the motor under test. The other end of the adapter shaft is connected to the drive shaft via the tightening sleeve. By using an adapter shaft, the output shaft dimensions of different motors under test will vary. If a drive shaft of the corresponding size is replaced every time the motor under test is changed, repeated alignment operations of the drive shaft are required, wasting a lot of time in the disassembly and installation process. Using an adapter shaft saves a significant amount of alignment time.
[0015] Optionally, one end of the drive shaft has an insertion recess, and the expansion sleeve has a large-diameter end and a small-diameter end. The small-diameter end is inserted into the insertion recess and abuts against the concave sidewall of the insertion recess. The end of the adapter shaft extends into the large-diameter end and abuts against the inner wall of the expansion sleeve. By using an expansion sleeve to connect the adapter shaft and the drive shaft, compared with the conventional key connection method, the expansion sleeve does not require circumferential alignment between the two connected shafts, and the position between the key and keyway does not need to be adjusted during the replacement of the adapter shaft. The expansion sleeve itself is easy to install and disassemble, improving the efficiency of replacing the adapter shaft. Through the design of connecting the adapter shaft and the expansion sleeve, the operational difficulty of replacing the motor under test is reduced, improving work efficiency and economy.
[0016] Optionally, it also includes a shaft support for supporting the drive shaft; the shaft support has a shaft-side through hole, which is coaxially arranged with the motor-side through hole. By adopting the above method, the shaft-side through hole and the motor-side through hole are coaxially arranged, providing a reference for alignment. Because they are coaxial, during the replacement of the motor under test, it is only necessary to ensure the coaxiality between the motor under test and the motor-side through hole to guarantee the coaxiality between the motor under test and the shaft-side through hole.
[0017] Optionally, the shaft support is fixed with a bearing housing, and the drive shaft is connected to the shaft support via the bearing housing. The bearing housing and the shaft-side through hole are coaxially arranged. By coaxially arranging the bearing housing and the shaft-side through hole, it can be ensured that the drive shaft always has the same coaxiality with the motor under test. Attached Figure Description
[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of this specification and, together with their description, serve to explain the principles of this specification.
[0019] Figure 1 This is a schematic diagram of the structure of the motor support fixture in an embodiment of this utility model;
[0020] Figure 2 yes Figure 1 Side sectional view.
[0021] Figure 1 and Figure 2 middle:
[0022] 1. Motor support base; 11. Front side wall; 12. Rear side wall; 13. Motor side through hole; 131. Stepped groove;
[0023] 21. Disc; 22. Neck;
[0024] 3. Motor under test; 31. Main body; 32. Flanged edge; 33. Mounting limit groove;
[0025] 4. Adapter shaft;
[0026] 5. Tensioning sleeve; 51. Large diameter end; 52. Small diameter end;
[0027] 6. Drive shaft; 61. Insertion recess; 611. Recessed sidewall;
[0028] 7. Shaft support seat; 71. Shaft side through hole; 72. Bearing seat. Detailed Implementation
[0029] This utility model provides a motor support fixture. By improving the structure of the motor support fixture, the operational difficulty of changing different models of motors under test is reduced, and the testing efficiency is improved.
[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] Relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0032] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the motor support fixture in an embodiment of this utility model; Figure 2 yes Figure 1 Side sectional view.
[0033] In conventional motor-to-motor tests, it is often necessary to replace the motor support 1 to meet the testing requirements of different motors under test 3. However, after replacing the motor support 1, re-alignment is often required to meet the testing requirements. Due to the complexity of the alignment process, re-alignment wastes a lot of time. In the support fixture of this embodiment, an adapter flange serves as an indirect positioning structure between the motor under test 3 and the motor support 1. Only one universal motor support 1 and different adapter flanges are needed to meet the support and positioning requirements of different models of motors under test 3. Since the motor support 1 does not need to be replaced when changing the motor under test 3, repeated alignment operations are avoided.
[0034] As shown in the figure, this utility model provides a motor support fixture, including a motor support base 1 and a shaft support base 7. The shaft support base 7 supports a drive shaft 6. The motor support base 1 is connected to the motor under test 3 to support the motor under test 3. The output shaft of the motor under test 3 is connected to the drive shaft 6 and is coaxially arranged. The drive shaft 6 is the output shaft of a motor-assisted device, which loads the motor under test 3 through the drive shaft 6. The motor under test 3 is provided with a mounting limiting groove 33. The motor support base 1 has a motor-side through hole 13, which extends along the thickness direction of the motor support base 1, that is, the axial direction of the output shaft of the motor under test 3 passes through the motor support base 1. The drive shaft 6 can be connected to the output shaft of the motor under test 3 through the motor-side through hole 13.
[0035] The motor support fixture also includes an adapter flange, which comprises a disc portion 21 and a neck portion 22 protruding axially from the disc portion 21. The disc portion 21 and the neck portion 22 are two annular components connected axially. The disc portion 21 is adapted to fit into the motor-side through hole 13, and the neck portion 22 can extend into the mounting limiting groove 33 and abut against the inner wall of the mounting limiting groove 33 in the radial direction, thereby forming a radial limit on the motor 3 under test. The adapter flange, the mounting limiting groove 33, and the motor-side through hole 13 are coaxially arranged. The adapter flange is detachably connected to the motor support base 1, for example, by snap-fit or threaded connection, to allow for replacement of the adapter flange.
[0036] By setting an adapter flange, the flange disc 21 is adapted to the motor-side through hole 13, and the neck 22 is adapted to the mounting limiting groove 33 of the motor under test 3. Different neck 22 sizes can be matched for different models of motor under test 3. The neck 22 is used to radially position the motor under test 3. The size of the disc 21 does not need to be changed, it only needs to be adapted to the motor-side through hole 13 of the motor support 1. Thus, when testing different models of motor under test 3, the original method of replacing the motor support 1 is changed to replacing the adapter flange of different models. This eliminates the need to replace the motor support 1 and the need for centering the motor support 1. Since the adapter flange and the motor-side through hole 13 are coaxially set, and the mounting limiting groove 33 is coaxially set with the adapter flange, the coaxiality of different models of adapter flanges, and the corresponding different models of motor under test 3 and the motor-side through hole 13 can be guaranteed. Therefore, by setting the adapter flange, the centering operation of the motor under test 3 is no longer required, thus improving the testing efficiency.
[0037] The shaft support 7 has a shaft-side through hole 71, which is coaxially arranged with the motor-side through hole 13. By adopting the above method, the shaft-side through hole 71 and the motor-side through hole 13 are coaxially arranged, providing a reference for alignment operation. Since they are coaxially arranged, when replacing the motor under test 3, it is only necessary to ensure the coaxiality of the motor under test 3 and the motor-side through hole 13 to ensure the coaxiality of the motor under test 3 and the shaft-side through hole 71.
[0038] In a specific example, the shaft support 7 is fixed with a bearing housing 72, and the drive shaft 6 is connected to the shaft support 7 through the bearing housing 72. The bearing housing 72 is coaxially arranged with the shaft-side through hole 71. By coaxially arranging the bearing housing 72 with the shaft-side through hole 71, it can be ensured that the drive shaft 6 always has the same coaxiality with the motor 3 under test.
[0039] In one specific embodiment, the motor-side through-hole 13 penetrates the front sidewall 11 and the rear sidewall 12 of the motor support 1. Compared with the rear sidewall 12, the front sidewall 11 is closer to the side where the drive shaft 6 is located. The rear sidewall 12 is equipped with the motor 3 to be tested. The wall of the motor-side through-hole 13 has a stepped groove 131. The groove opening of the stepped groove 131 is located in the rear sidewall 12. The stepped groove 131 is connected to the motor-side through-hole 13 and has an annular structure. Specifically, the stepped groove 131 is formed by a portion of the hole wall being concave outward (radially, the side pointing towards the central axis of the motor-side through-hole 13 is considered inward, and vice versa). Part or all of the disc portion 21 is located in the stepped groove 131 and abuts radially against the groove sidewall of the stepped groove 131. The stepped groove 131 is coaxially arranged with the motor-side through-hole 13. This changes the traditional method of radially positioning the motor under test 3 using the motor support 1. Instead, the flange plate 21 and the stepped groove 131 form radial positioning, and the neck 22 of the flange forms radial positioning with the motor under test 3. This allows for the replacement of different flanges for different models of the motor under test 3, simplifying the traditional centering operation.
[0040] Furthermore, by placing part or all of the disc 21 in the stepped groove 131, the stepped groove 131 limits the disc 21, thereby ensuring the coaxiality of the adapter flange and the motor side through hole 13 when installing the adapter flange. At the same time, it can also prevent the position of the adapter flange from shifting during the test and affecting the test results.
[0041] In a specific example, the motor under test 3 has a main body 31 and a flange 32. The flange 32 is formed by outwardly folding the outer wall of the main body 31 and is used to connect with the motor support 1. The front end face of the disc 21 axially presses against the bottom wall of the stepped groove 131, and the rear end face of the disc 21 abuts against the flange 32. That is, the flange 32 can cover the opening of the stepped groove 131 and connect with the rear side wall 12 of the motor support 1 located outside the opening of the stepped groove 131. Thus, the flange 32 and the stepped groove 131 form an annular space, which is used to embed at least a portion of the disc 21. In this way, a portion of the flange 32 abuts against the motor support 1 axially, and the flange 32 presses the disc 21 against the bottom wall of the groove, thereby cooperating with the bottom wall to fix the disc 21 axially.
[0042] The flange 32 extends axially from the main body 31. The inner ring sidewall of the flange 32 and the end face of the main body 31 together define the mounting limiting groove 33. The inner ring sidewall of the flange 32 abuts radially against the outer wall of the neck 22. In the radial direction, the disc 21 abuts against the groove sidewall of the stepped groove 131, that is, the groove sidewall is located outside the disc 21, limiting it. At the same time, the inner ring sidewall of the flange 32 abuts against the outer wall of the neck 22, that is, the neck 22 is located inside the flange 32, limiting the flange 32 radially. The stepped groove 131 and the flange 32 can be used to position the transition flange on the outside and inside, thereby effectively preventing misalignment of the coaxiality of the transition flange during testing and ensuring the accuracy of the test.
[0043] In one embodiment, the flange 32 has at least two bolt holes, and the motor support 1 has matching holes corresponding to the bolt holes. The flange 32 and the motor support 1 are connected by bolts. This allows for a detachable connection between the motor under test 3 and the motor support 1, facilitating the replacement of the motor under test 3. Alternatively, for different models of the motor under test 3, matching holes can be provided on the motor support 1 to accommodate the bolt holes of different models. To prevent overlapping matching holes, a connecting pressure plate can be provided. The connecting pressure plate axially presses the flange 32 against the rear sidewall 12 of the motor support 1, and the motor under test 3 is fixed to the rear sidewall 12 by forming a threaded connection between the connecting pressure plate and the motor support.
[0044] In the above embodiment, the outer diameter of the disc 21 is larger than the outer diameter of the neck 22. By adjusting the outer diameter of the neck 22, the radial dimension of the mounting limit groove 33 of different models of motors under test 3 can be adapted.
[0045] In other embodiments, the motor support fixture also includes an adapter shaft 4, a tightening sleeve 5, and a drive shaft 6. One end of the adapter shaft 4 can pass through the motor side through hole 13 and the mounting limiting groove 33 to connect with the output end of the motor under test 3. The other end of the adapter shaft 4 is connected to the drive shaft 6 through the tightening sleeve 5. By setting the adapter shaft 4, the output shaft dimensions of different motors under test 3 will differ. If the drive shaft 6 of the corresponding size is replaced every time the motor under test 3 is changed, the drive shaft 6 will need to be repeatedly aligned, and the disassembly and installation of the drive shaft 6 will waste a lot of time. By using the adapter shaft 4, a lot of alignment time is saved.
[0046] Optionally, one end of the drive shaft 6 has an insertion recess 61, and the expansion sleeve 5 has a large-diameter end 51 and a small-diameter end 52. The small-diameter end 52 is inserted into the insertion recess 61 and abuts against the concave sidewall 611 of the insertion recess 61 radially. The end of the adapter shaft 4 extends into the large-diameter end 51 and abuts against the inner wall of the expansion sleeve 5. By using the expansion sleeve 5 to connect the adapter shaft 4 and the drive shaft 6, compared with the conventional key connection method, the expansion sleeve 5 does not require circumferential alignment between the two connected shafts, and the position between the key and the keyway does not need to be adjusted during the replacement of the adapter shaft 4. The expansion sleeve 5 itself is easy to install and disassemble, which improves the efficiency of replacing the adapter shaft 4. The design of connecting the adapter shaft 4 and the expansion sleeve 5 reduces the operational difficulty of replacing the motor 3 under test, improves work efficiency, and is economical.
[0047] It is understandable that the expansion sleeve 5 is a component of the entire transmission system, and the machining and assembly accuracy of the expansion sleeve 5 itself will affect the alignment accuracy of the entire shaft system. The alignment accuracy of the expansion sleeve 5 itself can be guaranteed by purchasing high-precision expansion sleeves 5. Alignment deviations caused by uneven screw tightening force during expansion sleeve 5 assembly can be controlled with a torque wrench. By applying the same torque to the screws assembling the expansion sleeve 5, a uniform force distribution among the components of the expansion sleeve 5 is achieved, ensuring the alignment accuracy after assembly. Therefore, these measures can prevent the use of the expansion sleeve 5 from reducing the alignment accuracy of the entire shaft system.
[0048] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A motor support fixture, characterized in that, It includes a motor support base (1) and an adapter flange. The motor support base (1) is connected to the motor under test (3). The motor under test (3) is provided with an installation limiting groove (33). The motor support base (1) is provided with a motor side through hole (13). The adapter flange includes a disc (21) and a neck (22) protruding axially from the disc (21). The disc (21) is adapted to fit the motor side through hole (13). The neck (22) can extend into the mounting limiting groove (33) and abut against the inner groove wall of the mounting limiting groove (33) in the radial direction. The adapter flange, the mounting limiting groove (33) and the motor side through hole (13) are coaxially arranged.
2. The motor support fixture according to claim 1, characterized in that, The wall of the through hole (13) on the motor side is provided with a stepped groove (131), which is formed by a portion of the hole wall being recessed outward; At least a portion of the disc (21) is located within the stepped groove (131) and abuts radially against the groove sidewall of the stepped groove (131), the stepped groove (131) being coaxially arranged with the motor side through hole (13).
3. The motor support fixture according to claim 2, characterized in that, The motor under test (3) has a main body (31) and a flange (32). The flange (32) is formed by turning outward from the outer wall of the main body (31). The flange (32) is used to connect with the motor support (1). The front end face of the disc (21) is axially pressed against the bottom wall of the stepped groove (131), and the rear end face of the disc (21) is used to abut against the flange (32).
4. The motor support fixture according to claim 3, characterized in that, The flange (32) extends axially from the main body (31), and the inner ring sidewall of the flange (32) and the end face of the main body (31) together define the mounting limiting groove (33). The inner ring sidewall of the flange (32) abuts radially against the outer wall of the neck (22).
5. The motor support fixture according to claim 3, characterized in that, The flange (32) has at least two bolt holes, and the motor support (1) has matching holes that correspond one-to-one with the bolt holes. The flange (32) and the motor support (1) are connected by bolts.
6. The motor support fixture according to claim 1, characterized in that, The outer diameter of the disc portion (21) is larger than the outer diameter of the neck portion (22).
7. The motor support fixture according to any one of claims 1-6, characterized in that, It also includes an adapter shaft (4), a tightening sleeve (5) and a drive shaft (6). One end of the adapter shaft (4) can pass through the motor side through hole (13) and the mounting limiting groove (33) to connect with the output end of the motor under test (3). The other end of the adapter shaft (4) is connected to the drive shaft (6) through the tightening sleeve (5).
8. The motor support fixture according to claim 7, characterized in that, One end of the drive shaft (6) is provided with a insertion recess (61). The expansion sleeve (5) has a large diameter end (51) and a small diameter end (52). The small diameter end (52) is inserted into the insertion recess (61) and abuts against the concave sidewall (611) of the insertion recess (61) in the radial direction. The end of the adapter shaft (4) extends into the large diameter end (51) and abuts against the inner wall of the expansion sleeve (5) in the radial direction.
9. The motor support fixture according to claim 7, characterized in that, It also includes a shaft support (7) for supporting the drive shaft (6); The shaft support (7) has a shaft-side through hole (71), which is coaxially arranged with the motor-side through hole (13).
10. The motor support fixture according to claim 9, characterized in that, The shaft support (7) is fixed with a bearing seat (72), and the transmission shaft (6) is connected to the shaft support (7) through the bearing seat (72). The bearing seat (72) is coaxially arranged with the shaft side through hole (71).