Motor mounting bracket

Abstract

The present invention provides a motor mounting frame, comprising a bottom plate and a flange plate fixedly connected to each other and arranged perpendicularly to each other, the flange plate is provided with a through hole, and a pressure plate for pressing on the front end cover of the motor is elastically connected to the side wall of the through hole. By simultaneously arranging the bottom plate and the flange plate, the motor can be supported in the axial and radial directions of the motor at the same time, and the supporting performance is relatively good. At the same time, by elastically connecting the pressure plate, the height error of the motor center and the verticality error between the end face of the front end cover of the motor and the bottom face of the motor base can be offset, without the need to temporarily open a hole when installing the motor, and without the need to replace the motor mounting frame when replacing the motor, the use is relatively convenient and the cost is relatively low.

Description

Technical Field

[0001] The invention relates to a frame, in particular to a motor mounting frame. Background Art

[0002] Electric motors are also called motors, which are widely used in various mechanical equipment to provide power. In order to fix the electric motors, various mechanical equipment using the electric motors usually need to be equipped with motor mounting frames.

[0003] There are two main structural forms of existing motor mounting frames. One is that the mounting frame is in the shape of a flat plate. When in use, a base is set on the motor and the base is locked on the mounting frame by bolts. This structure is more common, but the motor can only be supported in the radial direction of the motor. The other is that the front end cover of the motor is locked on the mounting frame by bolts, such as a motor mounting frame disclosed in Chinese utility model patent publication number CN201520183305.0. However, this structure can only support the motor in the axial direction of the motor. Therefore, the supporting performance of the above two structures for the motor is relatively low.

[0004] Combining the above two structural forms of mounting frames into one so that the mounting frame has both a bottom plate that cooperates with the motor base and a flange plate that cooperates with the front end cover of the motor can effectively solve the above problem. However, this will make the motor difficult to install, because the processing of motor parts and the assembly of the motor will inevitably lead to errors in processing dimensions or assembly dimensions, especially the center height of each motor (the distance between the axis of the motor output shaft and the bottom surface of the motor base) and the verticality between the end face of the motor front end cover and the bottom surface of the motor base. After the motor is locked on the bottom plate, due to the existence of the above errors, it will be difficult to lock the motor on the flange plate again. Similarly, after the motor is locked on the flange plate, it will be difficult to lock the motor on the bottom plate again. This problem is currently mainly solved by temporarily opening a through hole or threaded hole on the mounting frame that cooperates with the motor when installing the motor. It is inconvenient to use, and when the motor is replaced, the mounting frame needs to be replaced at the same time, and the cost is relatively high.

[0005] In view of this, the applicant conducted an in-depth study on the structure of the motor mounting frame, which resulted in this case. Summary of the invention

[0006] The object of the present invention is to provide a motor mounting bracket which has relatively good supporting performance, is relatively convenient to use and has relatively low cost.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A motor mounting bracket, comprising a bottom plate and a flange plate fixedly connected to each other and arranged perpendicularly to each other, the bottom plate is provided with a locking threaded hole matched with the base of the motor, the flange plate is provided with a through hole, the side wall of the through hole is elastically connected with a pressure plate for pressing on the front end cover of the motor, there are two pressure plates, the two pressure plates are symmetrically arranged, and a movable gap is formed between each pressure plate and the side wall of the through hole, the two pressure plates are provided with a first arc surface, a second arc surface and a transition surface connected between the first arc surface and the second arc surface on the sides facing each other, and the two pressure plates are provided with two waist-shaped holes matched with the mounting threaded holes on the front end cover of the motor;

[0009] On the same pressure plate, the first arc surface and the second arc surface are arranged symmetrically, the two waist-shaped holes are arranged symmetrically with the symmetry plane between the first arc surface and the second arc surface as the center, the axes of the first arc surface and the second arc surface are both located on the symmetry plane between the first arc surface and the second arc surface, and the length direction of the cross section of each waist-shaped hole is arranged perpendicular to the bottom plate.

[0010] As an improvement of the present invention, the transition surface is a plane.

[0011] As an improvement of the present invention, there are four locking threaded holes, and the four locking threaded holes are arranged in a rectangular shape.

[0012] As an improvement of the present invention, each of the pressing plates is integrally connected to the flange plate.

[0013] As an improvement of the present invention, a plug hole is provided on the bottom plate, and a connecting column inserted into the plug hole is provided on the flange plate.

[0014] As an improvement of the present invention, a notch communicating with the through hole is formed on a side of the flange plate facing the bottom plate.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects:

[0016] 1. By setting the bottom plate and the flange plate at the same time, the motor can be supported in the axial and radial directions at the same time, and the supporting performance is relatively good. At the same time, the elastic connection pressure plate can offset the motor center height size error and the verticality error between the end face of the motor front cover and the bottom surface of the motor base. There is no need to temporarily open a hole when installing the motor, and there is no need to replace the motor mounting frame when replacing the motor. It is convenient to use and the cost is relatively low.

[0017] 2. The motor mounting bracket provided by the present invention can fully utilize the motor housing as a supporting component between the base plate and the flange plate after the motor is mounted on the motor mounting bracket, thereby effectively improving the connection firmness and stability between the base plate and the flange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the motor mounting frame in the embodiment;

[0019] Figure 2 Schematic diagram of the use status of the motor mounting bracket in the embodiment.

[0020] The markings in the figure correspond to the following:

[0021] 10-base plate; 11-locking threaded hole;

[0022] 20-flange plate; 21-perforation;

[0023] 22-slot; 23-pressing plate;

[0024] 24-connecting column; 25-active gap;

[0025] 26-first arcuate surface; 27-second arcuate surface;

[0026] 28-transition surface; 29-waist-shaped hole;

[0027] 30-motor; 31-base;

[0028] 32-Locking ring. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a motor mounting frame, including a bottom plate 10 and a flange plate 20 fixedly connected to each other and arranged perpendicularly to each other, wherein both the bottom plate 10 and the flange plate 20 are steel plates. The placement position of the bottom plate 10 can be determined according to actual needs. For ease of description, in this embodiment, the water level arrangement of the bottom plate 10 is taken as an example for description, and the flange plate 20 is arranged vertically and located above the bottom plate 10.

[0031] The bottom plate 10 is provided with a locking threaded hole 11 that matches the base 31 of the motor 30. Since there are usually four mounting holes on the base 31 of the motor 30 for inserting bolts, there are also four locking threaded holes 11. The four locking threaded holes 11 are arranged in a rectangular shape and match the four mounting holes one-to-one. When in use, the bottom plate 10 and the motor 30 are fixedly connected by inserting bolts into the mounting holes and screwing them into the corresponding locking threaded holes 11, thereby supporting the motor 30 in the radial direction of the motor 30. It should be noted that the positions of the mounting holes of motors of different specifications may be different, and different motor mounting brackets need to be used, that is, the motor mounting bracket provided in this embodiment, after the positions of its four locking threaded holes 11 are determined, it can only match motors of certain specific specifications, that is, the specific positions of the four locking threaded holes 11 need to be determined according to the specifications of the motors to be matched therewith.

[0032] Preferably, a socket is provided on the base plate 10, and a connecting column inserted into the socket is provided at the lower end of the flange plate 20, so that the connecting column of the flange plate 20 can be inserted into the socket first, and then the two can be welded to each other to reduce the verticality error between the two and improve the accuracy.

[0033] The flange plate 20 is provided with a through hole 21 whose axis is parallel to the bottom plate 10. Preferably, a notch 22 connected to the through hole 21 is provided on the side of the flange plate 20 facing the bottom plate 10, so that the entire flange plate 20 forms an inverted U-shaped structure, which is convenient for processing the through hole and the pressing plate 23 mentioned below by wire cutting. In addition, there are two jacks and two connecting columns respectively, and the two are matched one to one, and the two connecting columns are respectively located on both sides of the notch 22.

[0034] A pressing plate 23 for pressing on the front end cover of the motor 30 is elastically connected to the side wall of the perforation 21. There are two pressing plates 23, which are arranged symmetrically, and the symmetry planes of the two are arranged vertically and perpendicular to the flange plate 20. The specific elastic connection structure between the pressing plate 23 and the perforation 21 can be a conventional structure, for example, an elastic hinge is arranged between the two. Preferably, in this embodiment, each pressing plate 23 is integrally connected to the flange plate 20 through a connecting column 24, and the connection position of the pressing plate 23 and the perforation 21 is located in the middle of the pressing plate 23. When making the flange plate 20, the perforation 21 is cut out by wire cutting, and the position corresponding to the perforation 21 and the connecting column 24 is not cut, but the connecting column 24 and the corresponding shape of the pressing plate 23 are directly cut out, so that the connecting column 24 forms a cantilever structure with a size much smaller than the pressing plate 23, so that it has a certain elasticity and forms an elastic hinge, thereby realizing an integrated elastic connection between the pressing plate 23 and the side wall of the perforation 21. It should be noted that, for the sake of convenience, the connection position relationship of the pressing plate 23 in this embodiment is described based on the state when the connecting column 24 has not undergone elastic deformation.

[0035] There is a movable gap 25 between each pressing plate 23 and the side wall of the through hole 21, so that the pressing plate 23 can swing elastically on the plane where the flange plate 20 is located. The two pressing plates 23 are provided with a first arc surface 26, a second arc surface 27 and a transition surface 28 connected between the first arc surface 26 and the second arc surface 27 on the opposite side, wherein the transition surface 28 is preferably a plane, and the arc surfaces of the first arc surface 26 and the second arc surface 27 are arc surfaces with the same curvature, and the specific curvature of the arc surface needs to be determined according to the size specifications of the motor 30 matched therewith. In addition, two waist-shaped holes 29 are provided on the two pressing plates 23 to match the mounting threaded holes on the front end cover of the motor 30.

[0036] On the same pressure plate 23, the first curved surface 26 and the second curved surface 27 are arranged symmetrically, and the two waist-shaped holes 29 are symmetrically arranged with the symmetry plane between the first curved surface 26 and the second curved surface 27 as the center. The axes of the first curved surface 26 and the second curved surface 27 are both located on the symmetry plane between the first curved surface 26 and the second curved surface 27. In the present embodiment, the symmetry plane between the first curved surface 26 and the second curved surface 27 is arranged parallel to the bottom plate 10, and the length direction of the cross section of each waist-shaped hole 29 is arranged perpendicular to the bottom plate 10.

[0037] The motor 30 using the motor mounting frame provided in this embodiment needs to have a base 31, and a positioning ring 32 needs to be provided on the front cover of the motor 30 (if ribs are provided on the positioning ring 32, a groove needs to be provided at the corresponding position of the pressure plate 23), and the radius of the first arc surface 26 and the second arc surface 27 are equal to or slightly smaller than the radius of the positioning ring 32. This type of motor with a base 31 and a positioning ring 32 is a conventional motor, which is widely used in various mechanical equipment.

[0038] When in use, first use bolts to lock the base 31 of the motor 30 on the base 10, and at the same time, the positioning ring 32 of the motor is clamped between the two pressure plates 23, and then use bolts to insert into the corresponding waist-shaped holes 29 and screw them into the front end cover of the motor 30, and lock the pressure plate 23 on the front end cover of the motor 30, and at the same time, the flange plate 20 is pressed against the front end cover of the motor 30. In this process, the position deviation of the mounting threaded holes on the front end cover of the motor 30 can be solved through the waist-shaped holes 29, and the center height and verticality of the motor 30 can be solved through the pressure plate 23. Error, specifically, when the center height of the motor 30 is too large or too small, the positioning ring 32 will be used to deflect the east pressure plate 23 on the plane of the flange plate 20, ensuring that the pressure plate 23 presses the front end cover of the motor 30 and fits tightly against the positioning ring 32; when there is a straightness error in the output shaft of the motor 30 or there is an error in the verticality between the end face of the front end cover of the motor 30 and the bottom face of the base 31 of the motor 30, the front end cover of the motor 30 will push the pressure plate 23 to swing in the axial direction of the through hole 21, ensuring that the pressure plate 23 presses the front end cover of the motor 30 and fits tightly against the positioning ring 32.

[0039] The present invention is described in detail above with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments. Those skilled in the art can make various modifications to the present invention based on the prior art, which all belong to the protection scope of the present invention.

Claims

1. A motor mounting bracket, characterized in that: It comprises a bottom plate and a flange plate which are fixedly connected to each other and arranged perpendicularly to each other, the bottom plate is provided with a locking threaded hole which matches with the base of the motor, the flange plate is provided with a through hole, the side wall of the through hole is elastically connected with a pressure plate which is used to press tightly on the front end cover of the motor, there are two pressure plates, the two pressure plates are symmetrically arranged, and a movable gap is formed between each pressure plate and the side wall of the through hole, the two pressure plates are provided with a first arc surface, a second arc surface and a transition surface connected between the first arc surface and the second arc surface on the opposite sides, and the two pressure plates are provided with two waist-shaped holes which match with the mounting threaded holes on the front end cover of the motor; On the same pressure plate, the first arc surface and the second arc surface are arranged symmetrically, the two waist-shaped holes are arranged symmetrically with the symmetry plane between the first arc surface and the second arc surface as the center, the axes of the first arc surface and the second arc surface are both located on the symmetry plane between the first arc surface and the second arc surface, and the length direction of the cross section of each waist-shaped hole is arranged perpendicular to the bottom plate.

2. The motor mounting bracket according to claim 1, characterized in that: The transition surface is a plane.

3. The motor mounting bracket according to claim 1, characterized in that: There are four locking threaded holes, and the four locking threaded holes are arranged in a rectangular shape.

4. The motor mounting bracket according to claim 1, characterized in that: Each of the pressing plates is integrally connected to the flange plate.

5. The motor mounting bracket according to claim 1, characterized in that: The bottom plate is provided with an insertion hole, and the flange plate is provided with a connecting column inserted into the insertion hole.

6. The motor mounting bracket according to claim 1, characterized in that: A notch communicating with the through hole is formed on one side of the flange plate facing the bottom plate.

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