Motor chassis

Abstract

The utility model provides a motor chassis, and belongs to the technical field of motors. The problem that an existing chassis is poor in damping effect is solved. The motor chassis comprises a bottom plate and an annular flange vertically arranged at the front end of the bottom plate, the left side and the right side of the bottom plate are connected with the annular flange through vertically-arranged side plates, the annular flange, the bottom plate and the two side plates define a mounting cavity, and an opening is formed in the middle of the bottom plate so that the bottom plate can be divided into two flat plate bodies which are arranged side by side left and right; long grooves are vertically formed in the two flat plate bodies in a penetrating mode, a mounting hole is further vertically formed in each flat plate body in a penetrating mode, and the mounting hole is located between the two long grooves. A rubber pad is laid on the top face of the bottom plate, the long groove and the rubber pad are staggered in position, and the opening right faces the rubber pad. The bottom face of the rubber pad extends downwards to form positioning columns matched with the mounting holes, the number of the positioning columns is the same as that of the mounting holes, and the positioning columns are inserted and fixed into the corresponding mounting holes. The motor chassis is good in shock absorption.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to a motor chassis. Background Art

[0002] The motor chassis (or base) is an important component of the electric motor, which supports and fixes the motor.

[0003] The existing chassis, such as a motor mounting bracket disclosed in the China Patent Library (application number: 202110040580.7), includes 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 that cooperates with the base of the motor, the flange plate is provided with a through hole, and the side wall of the through hole is elastically connected to 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, and the two pressure plates are provided with a first arc surface, a second arc surface and a A transition surface is connected between the first curved surface and the second curved surface, and both pressure plates are provided with two waist-shaped holes that cooperate with the mounting threaded holes on the front end cover of the motor; on the same pressure plate, the first curved surface and the second curved surface are symmetrically arranged, and the two waist-shaped holes are symmetrically arranged with the symmetry plane between the first curved surface and the second curved surface as the center, the axes of the first curved surface and the second curved surface are both located on the symmetry plane between the first curved surface and the second curved surface, and the length direction of the cross section of each waist-shaped hole is arranged perpendicular to the base plate.

[0004] When the above-mentioned mounting bracket is in use, it is in complete hard contact with the motor, and the vibration reduction effect is not very good, which affects the smooth operation of the motor. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to provide a motor chassis with good shock absorption effect.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a motor chassis, comprising a base plate and an annular flange vertically arranged at the front end of the base plate, the left and right sides of the base plate are connected to the annular flange by vertically arranged side plates, and the annular flange, the base plate and the two side plates form a mounting cavity, characterized in that the middle part of the base plate is opened to divide the base plate into two flat plates arranged side by side on the left and right, both flat plates are vertically penetrated by a long groove, and the length of the long groove extends front and back; each flat plate is also vertically penetrated by a mounting hole, and the mounting hole is located between the two long grooves; a rubber pad is laid flat on the top surface of the base plate, the long groove and the rubber pad are staggered, and the opening is arranged opposite the rubber pad; the bottom surface of the rubber pad extends downward to form a positioning column matching the mounting hole, the number of the positioning columns and the mounting holes is the same, and the positioning columns are inserted and fixed in the corresponding mounting holes.

[0007] The present application divides the bottom plate into two, and the two flat plates are connected by rubber pads to buffer the vibration of the motor operation in multiple directions, thereby ensuring that the base frame is stably fixed and improving the stability of the motor operation.

[0008] In the aforementioned motor chassis, the flat plate is also vertically penetrated by connecting slots. These slots are identical in number to the mounting holes, and their positions correspond one to one. The ends of the connecting slots extend to the corresponding elongated slots and mounting holes, respectively. The mounting holes connect to the corresponding elongated slots, relieving the plate from stress during the slotting process, thereby ensuring the plate's inherent strength.

[0009] In the above-mentioned motor chassis, the type of the mounting hole is a round hole.

[0010] In the above-mentioned motor chassis, under the action of the connecting groove, the inner wall of the mounting hole is an arc surface, and the ratio of the arc length of the arc surface to the circumference of the entire circle in which it is located is greater than 3 / 4, so as to ensure that the positioning column and the mounting hole have a larger contact area, thereby increasing the positioning strength and stability of the rubber pad.

[0011] In the aforementioned motor chassis, a block is formed on the bottom surface of the rubber pad to match the opening and is locked into the opening. The block not only increases the contact area between the rubber pad and the flat plate, but also strengthens the positioning strength of the rubber pad, thereby further enhancing the cushioning and shock absorption effect of the rubber pad.

[0012] In the above-mentioned motor chassis, the contact portion between the positioning column and the mounting hole is coated with glue, which has the advantages of simple structure and stable positioning.

[0013] In the above-mentioned motor chassis, heat dissipation holes are provided on both side plates, which are beneficial to the heat dissipation of the motor.

[0014] In the above-mentioned motor chassis, the chassis is a cast integral part.

[0015] Compared with the existing technology, this motor chassis has the following advantages:

[0016] 1. This application divides the bottom plate into two parts, and the two flat plates are connected by rubber pads to buffer the vibration of the motor operation in multiple directions to ensure that the base frame is stably fixed and improve the stability of the motor operation.

[0017] 2. The mounting hole is connected to the corresponding long groove to relieve the stress on the flat plate during the long groove processing, so as to ensure the strength of the flat plate itself.

[0018] 3. Setting the block can not only increase the contact area between the rubber pad and the flat plate, but also strengthen the positioning strength of the rubber pad to further enhance the cushioning and shock absorption effect of the rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the motor chassis.

[0020] Figure 2 It is a cross-sectional schematic diagram of the motor chassis.

[0021] Figure 3 This is a three-dimensional schematic diagram of the motor chassis with the rubber pad removed.

[0022] In the figure, 1, bottom plate; 1a, opening; 1b, flat plate; 1c, long groove; 1d, mounting hole; 1e, connecting groove; 2, annular flange; 3, side panel; 3a, heat dissipation vent; 4, rubber pad; 4a, positioning column; 4b, clamping block. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] like Figure 1 As shown, the motor chassis is an integrated structure, and preferably the chassis is a cast integral part.

[0025] Specifically,

[0026] The chassis comprises a base plate 1 and an annular flange 2 vertically mounted at the front end of the base plate 1, with the flange 2 extending forward and backward along its axis. The flange 2 is used to connect to the motor. The left and right sides of the base plate 1 are connected to the flange 2 via vertically mounted side panels 3. The flange 2, base plate 1, and side panels 3 form a mounting cavity for horizontally placing the motor.

[0027] like Figures 1 to 3 As shown, the bottom plate 1 has an opening 1a in the middle to divide the bottom plate 1 into two flat plates 1b arranged side by side on the left and right. Both flat plates 1b are vertically penetrated by a long slot 1c, and the length of the long slot 1c extends front to back. The long slot 1c is used to install bolts to position the chassis. Each flat plate 1b is also vertically penetrated by a mounting hole 1d, and the mounting hole 1d is located between the two long slots 1c; a rubber pad 4 is laid flat on the top surface of the bottom plate 1, the long slot 1c and the rubber pad 4 are staggered, and the opening 1a is arranged opposite the rubber pad 4. The bottom surface of the rubber pad 4 extends downward to form a positioning column 4a that matches the mounting hole 1d. The number of the positioning column 4a and the mounting hole 1d is the same, and the positioning column 4a is inserted and fixed in the corresponding mounting hole 1d.

[0028] The present application divides the bottom plate 1 into two, and the two flat plate bodies 1b are connected by a rubber pad 4 to buffer the vibration of the motor operation in multiple directions, thereby ensuring that the base frame is stably fixed and improving the stability of the motor operation.

[0029] Furthermore, connecting slots 1e extend vertically through the flat plate 1b. These slots 1e are identical in number to the mounting holes 1d, and their positions correspond one to one. The ends of the connecting slots 1e extend to the corresponding elongated slots 1c and mounting holes 1d, respectively. The mounting holes 1d communicate with the corresponding elongated slots 1c, relieving the stress applied to the flat plate 1b during the machining of the elongated slots 1c and thereby ensuring the inherent strength of the flat plate 1b.

[0030] Preferably, the mounting hole 1d is a circular hole, and under the action of the connecting groove 1e, the inner wall of the mounting hole 1d is an arc surface, and the ratio of the arc length of the arc surface to the circumference of the entire circle in which it is located is greater than 3 / 4, so as to ensure that the positioning column 4a and the mounting hole 1d have a larger contact area, thereby increasing the positioning strength and stability of the rubber pad 4.

[0031] like Figure 1 and Figure 2 As shown, a block 4b is formed on the bottom surface of the rubber pad 4 to match the opening 1a, and the block 4b is locked in the opening 1a. The provision of the block 4b not only increases the contact area between the rubber pad 4 and the flat plate 1b, but also strengthens the positioning strength of the rubber pad 4, thereby further enhancing the cushioning and shock absorption effect of the rubber pad 4.

[0032] In the actual product, the contact between the positioning column 4a and the mounting hole 1d is coated with glue, which has the advantages of simple structure and stable positioning; the two side plates 3 are both penetrated by heat dissipation ports 3a on the left and right, which is beneficial to the heat dissipation of the motor.

[0033] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A motor chassis, comprising a base plate (1) and an annular flange (2) vertically arranged at the front end of the base plate (1), the left and right sides of the base plate (1) are connected to the annular flange (2) through vertically arranged side plates (3), and the annular flange (2), the base plate (1) and the side plates (3) form a mounting cavity, characterized in that: The bottom plate (1) has an opening (1a) in the middle to divide the bottom plate (1) into two flat plates (1b) arranged side by side on the left and right. The two flat plates (1b) are vertically penetrated by a long groove (1c), and the length of the long groove (1c) extends forward and backward. Each flat plate (1b) is also vertically penetrated by a mounting hole (1d), and the mounting hole (1d) is located between the two long grooves (1c). A rubber pad (4) is laid flat on the top surface of the bottom plate (1), the long groove (1c) and the rubber pad (4) are staggered, and the opening (1a) is arranged opposite to the rubber pad (4). The bottom surface of the rubber pad (4) extends downward to form a positioning column (4a) matching the mounting hole (1d). The positioning column (4a) and the mounting hole (1d) are the same in number, and the positioning column (4a) is inserted and fixed in the corresponding mounting hole (1d).

2. The motor chassis according to claim 1, characterized in that: The flat plate body (1b) is also vertically penetrated by a connecting groove (1e), the connecting grooves (1e) and the mounting holes (1d) are the same in number and have corresponding positions, and both ends of the connecting groove (1e) extend to the corresponding long groove (1c) and the corresponding mounting hole (1d), respectively.

3. The motor chassis according to claim 2, characterized in that: The mounting hole (1d) is a round hole.

4. The motor chassis according to claim 3, characterized in that: Under the action of the connecting groove (1e), the inner wall of the mounting hole (1d) is an arc surface, and the ratio of the arc length of the arc surface to the circumference of the entire circle in which it is located is greater than 3 / 4.

5. The motor chassis according to claim 1, characterized in that: A clamping block (4b) matching the opening (1a) is also formed on the bottom surface of the rubber pad (4), and the clamping block (4b) is clamped in the opening (1a).

6. The motor chassis according to claim 1, characterized in that: The contact portion between the positioning column (4a) and the mounting hole (1d) is coated with glue.

7. The motor chassis according to claim 1, characterized in that: Both side plates (3) are provided with heat dissipation openings (3a) extending through the left and right sides.

8. The motor chassis according to claim 1, characterized in that: The chassis is a one-piece casting.

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