Split bracket for motor structure
By using the sliding limit and longitudinal locking design of the split bracket, the problem of radial offset of the output shaft caused by the difference in bolt tightening torque in small motors is solved, thereby improving the stability and service life of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI YISUN AUTO MOTOR CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Due to the lightweight structure of small motors, differences in bolt tightening torque can lead to asymmetrical deformation of the bracket, radial offset of the output shaft, and consequently, premature bearing failure and motor damage.
The design adopts a split bracket, including a fixed frame, a fixed base, a stop plate, and a telescopic locking component. Through sliding limit and longitudinal locking, it ensures that the installation torque on the left and right sides of the motor is consistent, avoiding differences in bolt tightening torque.
This effectively solves the problem of radial offset of the motor output shaft caused by differences in bolt tightening torque, thus improving the stability and service life of the motor.
Smart Images
Figure CN224401256U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor technology, specifically relating to motor brackets, and more particularly to split brackets for motor structures. Background Technology
[0002] Small motors are usually fixed to the working surface by metal or plastic brackets. The left and right sides of the bracket need to be tightened with bolts to hold the motor. However, due to the lightweight structure, small motors have low overall rigidity. When there is a difference in the tightening torque of the bolts on both sides (such as human operation error or uneven thread friction coefficient), the bracket will produce asymmetrical deformation, which will cause the motor output shaft to deviate radially. The stress concentration on one side will cause the bearing to fail prematurely, which will lead to motor damage.
[0003] Since manual operation is widely used in practice, how to avoid the difference in bolt tightening torque caused by manual operation, which would lead to radial offset of the motor output shaft, is a technical problem that urgently needs to be solved in this field.
[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0005] This disclosure provides at least one split bracket for motor structure to solve the technical problem of radial offset of motor output shaft caused by differences in bolt tightening torque.
[0006] In a first aspect, embodiments of this disclosure provide a split bracket for a motor structure, comprising: a fixed frame having symmetrically arranged slide bars on both sides of its bottom surface; a pair of fixed seats, respectively disposed on both sides of the motor, each fixed seat having a slide groove adapted to the slide bars; a stop plate fixed to one end of the slide groove, suitable for limiting the sliding stroke of the fixed frame; and a telescopic locking member disposed at the other end of the slide groove; wherein the fixed frame is configured to be inserted into and slide from one side of the slide groove for lateral limiting; the fixed frame slides to abut against the stop plate on one side and against the telescopic locking member on the other side for longitudinal locking.
[0007] In one alternative embodiment, the telescopic locking member includes a baffle connected by a spring to a rectangular recess in the slide groove; wherein, when the fixing frame is configured such that its end face abuts against the stop plate, the spring drives the baffle to extend from the rectangular recess to cooperate with the stop plate in forming a longitudinal lock on the fixing frame.
[0008] In one optional embodiment, both sides of the top surface of the baffle are provided with chamfered surfaces.
[0009] In one optional embodiment, the fixed base is provided with limit strips on both sides along the length direction, and the slide portion is provided with limit grooves on both sides that are adapted to the limit strips.
[0010] In one optional embodiment, the groove is provided with at least one recessed threaded hole, and a bolt for connecting the fixing seat and the working surface is provided in the threaded hole.
[0011] Secondly, this disclosure also provides a split bracket for a motor structure, comprising: a fixed frame having slide bars symmetrically arranged on both sides of its bottom surface; a pair of fixed seats respectively disposed on both sides of the motor, each fixed seat having a slide groove matching the slide bar; and telescopic locking members disposed at both ends of the slide groove; wherein the fixed frame is configured to be inserted into and slide from one side of the slide groove for lateral limiting; when the fixed frame slides to the point where one side abuts against one telescopic locking member, the other side abuts against the other telescopic locking member for longitudinal locking.
[0012] In one alternative embodiment, the telescopic locking member includes a baffle connected by a spring to a rectangular recess in the slide groove; wherein, when the fixing frame is configured such that its end face abuts against another baffle, the spring drives the baffle to extend from the rectangular recess to cooperate with the other baffle in forming a longitudinal lock on the fixing frame.
[0013] In one optional embodiment, both sides of the top surface of the baffle are provided with chamfered surfaces.
[0014] In one optional embodiment, the fixed base is provided with limit strips on both sides along the length direction, and the slide portion is provided with limit grooves on both sides that are adapted to the limit strips.
[0015] In one optional embodiment, the groove is provided with at least one recessed threaded hole, and a bolt for connecting the fixing seat and the working surface is provided in the threaded hole.
[0016] The beneficial effects of this utility model are that it provides a split bracket for motor structure. By first installing the fixed base on the working surface of the motor, the fixed bracket slides to the designated position of the fixed base to achieve lateral limitation, and then the telescopic locking member abuts against its end face to achieve longitudinal locking. This fixes the motor between the fixed base and the fixed bracket, ensuring that the installation torque on the left and right sides of the motor is always the same. This solves the problem of radial offset of the motor output shaft caused by the difference in tightening torque when the bolts are positioned.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 A perspective view of the unfolded state of the split bracket for the motor structure provided in an embodiment of this disclosure;
[0021] Figure 2 This is a cross-sectional view of the fixing frame sliding towards the fixing seat according to an embodiment of the present disclosure;
[0022] Figure 3 This is a cross-sectional view of the fixing seat after it is locked onto the fixing seat according to an embodiment of the present disclosure.
[0023] In the picture:
[0024] 1. Fixing bracket; 11. Sliding bar; 12. Limiting groove;
[0025] 2. Fixed base; 21. Slide groove; 22. Countersunk threaded hole; 23. Bolt; 24. Rectangular recess; 25. Limiting strip;
[0026] 3. Telescopic locking mechanism; 31. Baffle; 32. Spring;
[0027] 4. Stop plate;
[0028] 5. Motor. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0031] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0032] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0033] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0034] Research has revealed the following drawbacks of existing technologies: Small motors are typically fixed to the surface using metal or plastic brackets. The brackets need to be tightened with bolts on both sides to hold the motor in place. However, due to their lightweight structure, small motors have low overall rigidity. When there is a difference in the tightening torque of the bolts on both sides (such as due to human error or uneven thread friction coefficient), the bracket will undergo asymmetrical deformation, causing the motor output shaft to shift radially. Stress concentration on one side causes the bearing to fail prematurely, which in turn leads to motor damage.
[0035] Therefore, how to avoid radial offset of the motor output shaft due to differences in bolt tightening torque is a technical problem that urgently needs to be solved in this field.
[0036] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.
[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0038] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0039] like Figures 1 to 3 As shown, some embodiments provide a split bracket for a motor structure, including: a fixing frame 1, on which slide bars 11 are symmetrically arranged on both sides of its bottom surface; a pair of fixing seats 2, respectively arranged on both sides of the motor 5, each fixing seat 2 having a slide groove 21 adapted to the slide bar 11; at least one recessed threaded hole 22 is provided in the slide groove 21, and a bolt 23 is provided in the threaded hole to connect the fixing seat 2 and the working surface, the bolt 23 mounting the fixing seat 2 on the working surface of the motor 5, wherein the motor 5 is located between the two fixing seats 2, wherein the fixing seats 2 abut against the motor 5, before assembly, one side of the fixing seat 2 is locked first, then the motor 5 is placed in the position abutting against it, and then the other side of the fixing seat 2 is mounted on the working surface of the motor 5, at which time the motor 5 is sandwiched between the two fixing seats 2, and finally the fixing frame 1 is slid along the slide groove 21 to the designated position, at which time the fixing frame 1 covers the upper half of the motor 5, and the inner contour of the fixing frame 1 matches the motor 5.
[0040] A stop plate 4 is provided at one end of the slide groove 21, which is suitable for limiting the sliding stroke of the fixed frame 1; a telescopic locking member 3 is provided at the other end of the slide groove 21. The fixed frame 1 slides into the fixed seat 2 from the end near the telescopic locking member 3. At this time, the telescopic locking member 3 is compressed. Specifically, the fixed frame 1 is configured to be inserted and slid from one side of the slide groove 21 to limit the movement laterally; the fixed frame 1 slides to abut against the stop plate 4 on one side and against the telescopic locking member 3 on the other side to lock longitudinally.
[0041] The following describes the composition and structure of the telescopic locking component 3. The telescopic locking component 3 includes a baffle 31, which is connected to the rectangular recess 24 of the slide groove 21 by a spring 32. When the fixing frame 1 is configured such that its end face abuts against the stop plate 4, the spring 32 drives the baffle 31 to extend out of the rectangular recess 24, thereby cooperating with the stop plate 4 to form a longitudinal lock on the fixing frame 1. Both sides of the top surface of the baffle 31 are provided with chamfered surfaces, which facilitate the slide bar 11 to compress the baffle 31 into the rectangular recess 24.
[0042] Limiting strips 25 are provided on both sides of the fixed base 2 along the length direction. Limiting grooves 12 adapted to the limiting strips 25 are provided on both sides of the slide bar 11. It should be further explained that the vertical cross section of the limiting strip 25 is an L-shaped horizontally arranged. The limiting groove 12 is consistent with the vertical cross section contour of the limiting strip 25. This is used to enhance the stability of the motor 5 fixed between the fixed frame 1 and the fixed base 2, so that it can be firmly limited laterally.
[0043] Some embodiments provide a split bracket for a motor structure, including: a fixed frame 1, on which slide bars 11 are symmetrically arranged on both sides of its bottom surface; a pair of fixed seats 2, respectively arranged on both sides of the motor 5, each fixed seat 2 having a slide groove 21 that matches the slide bar 11; at least one recessed threaded hole 22 is provided in the slide groove 21, and a bolt 23 connecting the fixed seat 2 and the working surface is provided in the threaded hole.
[0044] Telescopic locking components 3 are provided at both ends of the slide 21. The motor 5 can be inserted into the fixed base 2 from either end of the slide 21. The distance between the two telescopic locking components 3 matches the length of the fixed frame 1. Specifically, the telescopic locking components 3 are provided at both ends of the slide 21. The fixed frame 1 is configured to be inserted and slid from one side of the slide 21. At this time, a baffle 31 is compressed into the rectangular recess 24 for lateral limitation. When the fixed frame 1 slides to the point where one side abuts against one telescopic locking component 3, the other side abuts against another telescopic locking component 3 for longitudinal locking.
[0045] The telescopic locking component 3 includes a baffle 31, which is connected to a rectangular recess 24 in the slide groove 21 by a spring 32. When the fixing frame 1 is configured such that its end face abuts against another baffle 31, the spring 32 drives the baffle 31 to extend out of the rectangular recess 24, thereby cooperating with the other baffle 31 to form a longitudinal lock on the fixing frame 1. Both sides of the top surface of the baffle 31 are provided with chamfered surfaces.
[0046] Limiting strips 25 are provided on both sides of the fixed base 2 along the length direction, and limiting grooves 12 adapted to the limiting strips 25 are provided on both sides of the slide part 11.
[0047] In summary, when the fixing bracket 1 is inserted from the position of the baffle 31 onto the fixing seat 2, the baffle 31 is compressed until the fixing bracket 1 moves to abut against another baffle 31 or the stop plate 4. At this time, the compressed baffle 31 pops out, limiting the fixing bracket 1 between the two baffles 31 or between the baffle 31 and the stop plate 4. At this time, the lower half of the motor 5 is limited between the two fixing seats 2, and the upper plate is limited below the fixing bracket 1. During installation, it is not affected by the difference in the tightening force of the bolts 23. The force on the left and right and front and back of the motor 5 is always consistent. Specifically, by first installing the fixing seat 2 on the working surface of the motor 5, the fixing bracket 1 is slid to the designated position of the fixing seat 2 to achieve lateral limitation. Then, the telescopic locking piece 3 abuts against its end face to achieve longitudinal locking, so that the motor 5 is fixed between the fixing seat 2 and the fixing bracket 1. The installation torque on the left and right sides of the motor 5 is always the same, which solves the problem of radial displacement of the output shaft of the motor 5 caused by the difference in the tightening torque of the bolts 23 during positioning.
[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A split bracket for an electric motor structure, characterized in that, include: The fixed frame (1) has symmetrical sliding strips (11) on both sides of its bottom surface. A pair of fixed seats (2) are respectively set on both sides of the motor (5), and each fixed seat (2) is provided with a sliding groove (21) that is compatible with the slide bar (11). The stop plate (4) is fixed to one end of the slide groove (21) and is suitable for limiting the sliding stroke of the fixed frame (1); Telescopic locking component (3) is located at the other end of the slide groove (21); The fixing bracket (1) is configured to be inserted and slid from one side of the slide groove (21) to limit the movement laterally; the fixing bracket (1) slides to one side against the stop plate (4) and the other side against the telescopic locking member (3) to lock longitudinally.
2. The split-type support as described in claim 1, characterized in that, The telescopic locking member (3) includes a baffle (31), which is connected to the rectangular recess (24) of the slide groove (21) by a spring (32); When the end face of the fixing frame (1) is abutted against the stop plate (4), the spring (32) drives the baffle (31) to extend out from the rectangular recess (24) to cooperate with the stop plate (4) to form a longitudinal lock on the fixing frame (1).
3. The split-type support as described in claim 2, characterized in that, Both sides of the top surface of the baffle (31) are provided with chamfered surfaces.
4. The split-type support as described in claim 3, characterized in that, The fixed base (2) has limit strips (25) on both sides along the length direction, and the slide bar (11) has limit grooves (12) on both sides that are adapted to the limit strips (25).
5. The split support as described in claim 4, characterized in that, At least one recessed threaded hole (22) is provided in the groove (21), and a bolt (23) for connecting the fixing seat (2) and the working surface is provided in the threaded hole.
6. A split bracket for an electric motor structure, characterized in that, include: The fixed frame (1) has symmetrical sliding strips (11) on both sides of its bottom surface. A pair of fixed seats (2) are respectively set on both sides of the motor (5), and each fixed seat (2) is provided with a sliding groove (21) that matches the slide bar (11). Telescopic locking components (3) are provided at both ends of the slide groove (21); The fixing bracket (1) is configured to be inserted and slid from one side of the slide groove (21) to limit the movement laterally; when the fixing bracket (1) slides to the point where one side abuts against a telescopic locking member (3), the other side abuts against another telescopic locking member (3) to lock longitudinally.
7. The split support as described in claim 6, characterized in that, The telescopic locking member (3) includes a baffle (31), which is connected to the rectangular recess (24) of the slide groove (21) by a spring (32); When the end face of the fixing frame (1) abuts against another baffle (31), the spring (32) drives the baffle (31) to extend out of the rectangular recess (24) to cooperate with the other baffle (31) to form a longitudinal lock on the fixing frame (1).
8. The split support as described in claim 7, characterized in that, Both sides of the top surface of the baffle (31) are provided with chamfered surfaces.
9. The split support as described in claim 8, characterized in that, The fixed base (2) has limit strips (25) on both sides along the length direction, and the slide bar (11) has limit grooves (12) on both sides that are adapted to the limit strips (25).
10. The split-type support as described in claim 9, characterized in that, At least one recessed threaded hole (22) is provided in the groove (21), and a bolt (23) for connecting the fixing seat (2) and the working surface is provided in the threaded hole.