CN217115845U

CN217115845U - Speed reducing motor

Info

Publication number: CN217115845U
Application number: CN202220395117.4U
Authority: CN
Inventors: 吴迪
Original assignee: Youernai Fuzhou Power Manufacturing Co ltd
Current assignee: Youernai Fuzhou Power Manufacturing Co ltd
Priority date: 2021-10-21
Filing date: 2022-02-26
Publication date: 2022-08-02
Anticipated expiration: 2032-02-26

Abstract

The utility model discloses lie in solving the not enough defect of current gear motor stability, provide a weight low, make the better gear motor of gear motor stability. The connecting support is formed by punching a steel plate, a shaft hole used for penetrating through a rotating shaft of the motor is formed in the connecting support, two sides of the connecting support are fixedly connected with the motor and the speed reducer respectively, and a bearing hole is formed in the rear end of a shell of the motor. The utility model discloses a linking bridge of prior art die-casting is replaced to linking bridge of steel sheet punching press, and the thickness of steel sheet punching press is less than the thickness of die-casting far away, and the weight of steel sheet punching press linking bridge is also less than the weight of die-casting far away. The linking bridge of die-casting is equipped with the dead eye, the utility model discloses move the dead eye to motor housing, stamping workpiece linking bridge welds with motor housing is concentric again, and the function is equal to the linking bridge of die-casting and the motor housing of die-casting.

Description

Speed reducing motor

Technical Field

The utility model belongs to the gear motor field.

Background

The speed reducing motor consists of a speed reducer and a motor, and the rotating shaft of the motor provides power for the rotation of the impeller for the speed reducer. The traditional speed reducer and the motor are respectively provided with supporting legs to fix the speed reducer and the motor on the bottom plate, but the connection precision of the input shaft and the motor rotating shaft is required to be high under the condition that the input shaft of the speed reducer and the motor rotating shaft are directly connected, but the precision requirement is difficult to achieve in actual operation. In order to solve the precision problem, the support legs of the motor are removed by a part of speed reducing motors on the market, only the support legs of the speed reducing motor are reserved, namely, the motor is hung on the speed reducer, the method requires the weight reduction of the motor, a plurality of manufacturers design the motor in a light weight way, aluminum alloy replaces cast iron to manufacture a motor shell, the connecting bracket between the motor and the speed reducer is still manufactured by aluminum alloy die casting, as shown in figures 1 and 2, the connecting bracket is in a ring shape, the middle of the ring is provided with a shaft hole 35, the ring surface is provided with a plurality of annular raised platforms, on the surface of the connecting bracket close to the speed reducer, annular platforms outwards from the shaft hole are respectively a sealing ring top column 36 and a positioning block 33, on the surface of the connecting bracket, which is close to the motor, an annular platform at the periphery of the shaft hole 35 forms a bearing hole 4, and a plurality of bolt holes are formed in the periphery of the annular platform and used for connecting the connecting support with the motor or the speed reducer. In the practical use process, the applicant finds that the aluminum material is too soft and often deforms and cracks, and therefore the applicant adopts the steel plate stretching motor shell to solve the problem that the aluminum shell is easy to deform and crack and applies for patent CN201921020070.8, but the problem that the weight is large due to the large thickness of the die-cast connecting support still exists, the stability of the speed reducing motor is reduced to a certain degree, and the defects of poor strength, high energy consumption, complex processing, low processing speed, high cost and the like exist.

In view of this, the utility model discloses.

Disclosure of Invention

The utility model discloses lie in solving the not enough defect of current gear motor stability, provide a weight low, make the better gear motor of gear motor stability.

The utility model provides a gear motor, it includes speed reducer and motor to and the linking bridge of connecting speed reducer and motor, its main points lie in, linking bridge is formed by the steel sheet punching press, offers the shaft hole that is used for passing the motor pivot on the linking bridge, the both sides of linking bridge respectively with motor and speed reducer fixed connection, the rear end of motor shell is equipped with the dead eye.

The utility model discloses a linking bridge that the steel sheet punching press formed replaces the linking bridge of die-casting among the prior art, and the thickness of steel sheet punching press is less than the thickness of die-casting far away, and the weight of steel sheet punching press linking bridge also is less than the weight of die-casting far away. Because the density of the steel plate is greater than that of the aluminum material, the steel plate has stronger stamping rigidity compared with the aluminum material die-cast connecting bracket. The linking bridge of tradition die-casting is equipped with the dead eye, the utility model discloses move the dead eye to motor housing, stamping workpiece linking bridge welds with motor housing is concentric again, and the function is equal to the linking bridge of die-casting and the motor housing of die-casting.

And the surface of one side of the connecting support is welded and fixed with the motor, a through hole is formed in the periphery of the shaft hole, and a bolt passes through the through hole to fix the connecting support on the speed reducer.

The motor and the connecting support are light in weight, the connecting support is welded and fixed on the motor and convenient to operate, the motor and the connecting support are not provided with support legs, and the motor and the connecting support are hung on the speed reducer through bolts.

And a positioning block is arranged on the surface of one side of the connecting support and is connected with a spigot of a front end cover of the speed reducer.

The positioning block is connected with the spigot and used for positioning the connecting bracket.

The positioning block is a quadrilateral bulge on the surface of the connecting support, wherein the edge far away from the shaft hole is arc-shaped and the arc is concentric with the shaft hole, the arc-shaped edge after being punched is higher than the surface of the connecting support, the other three edges are connected with the surface of the connecting support, and the arc-shaped edge of the positioning block is identical to the arc of the inner side surface of the front end cover spigot of the speed reducer and is connected with the inner side surface of the front end cover spigot of the speed reducer.

The positioning block with the arc-shaped edge is matched with the spigot of the front end cover of the speed reducer to position the connecting support and the motor, so that the motor and the speed reducer can be quickly connected, the arc-shaped edge is connected with the arc-shaped spigot, the motor and the connecting support are positioned in the radial direction of the shaft hole, one side surface of the connecting support is abutted against the surface of the front end cover of the speed reducer, and the motor and the connecting support are positioned in the axial direction of the shaft hole.

The positioning blocks are arranged around the circumferential direction of the shaft hole.

Because the spigot of the front end cover of the speed reducer is circular, the positioning blocks are arranged in the circumferential direction around the shaft hole, so that the positioning blocks are just arranged on the inner circular surface of the spigot, and the connecting support is facilitated to be positioned in the radial direction of the shaft hole.

The utility model discloses a linking bridge of punching press preparation motor and speed reducer, linking bridge for traditional die-casting is made, thickness greatly reduced to alleviate linking bridge's weight, help the speed reducer stable. And secondly, necessary structures are processed in the stamping process of the connecting bracket, subsequent independent mechanical processing is not needed, and the production speed is increased. And thirdly, the stamping is cold processing, the die casting needs heating and pressurizing, and the energy consumption can be reduced by adopting the stamping to process the connecting bracket. And finally, the stamping forming speed is high, the number of parts which can be processed in unit time is far greater than that of die castings, the production speed is improved, and the production cost is reduced.

Drawings

FIG. 1 is a perspective view of a conventional connecting bracket

FIG. 2 is another perspective view of the prior art connecting bracket

FIG. 3 is a perspective view of the reduction motor

FIG. 4 is a plan view of the reduction motor

FIG. 5 is a cross-sectional view S-S of FIG. 4

FIG. 6 is a perspective view of the connecting bracket and motor housing

FIG. 7 is a perspective view of a reducer

Wherein: the device comprises a motor 1, a rotating shaft 11, a speed reducer 2, a spigot 21, a connecting bracket 3, a positioning block 33, a positioning edge 331, a bolt hole 34, an axle hole 35, a sealing ring top column 36 and a bearing hole 4.

Detailed Description

The embodiments illustrated herein will enable those skilled in the art to more fully understand the present invention, without limiting it in any way, when the present invention is described in detail below with reference to the accompanying drawings.

As shown in fig. 3 to 7, the utility model provides a speed reduction motor, it includes speed reducer 2 and motor 1 and linking bridge 3, linking bridge 3 is connected speed reducer 2 and motor 1, linking bridge 3 one side and motor 1 welded fastening, the opposite side adopts bolted connection with speed reducer 2. Connecting bracket 3 is by a circular steel sheet stamping forming, and the center pin department turn-ups of circular steel sheet is equipped with shaft hole 35, and gear motor's motor shaft 11 is followed pass through in the shaft hole 35, shaft hole 35 and motor shaft 11 are coaxial. The linking bridge of tradition die-casting is equipped with dead eye 4, the utility model discloses move motor 1's shell with dead eye 4, stamping workpiece linking bridge 3 again with motor 1 shell concentric welding, the function is equal to the linking bridge of die-casting and the motor housing of die-casting.

A positioning block 33 is arranged on the surface of one side of the connecting support 3 far away from the motor 1, and the positioning block 33 is connected with the front end cover of the speed reducer to help the connecting support 3 to be positioned. The positioning block 33 is a quadrilateral bulge on the plane of the connecting support 3, one side of the positioning block, which is far away from the shaft hole 35, is an arc-shaped positioning edge 331, the arc-shaped edge of the steel plate after being punched is higher than the steel plate, the other three edges of the quadrilateral are connected with the plane of the connecting support 3, and the positioning edge 331 is connected with the seam allowance 21 of the front end cover of the speed reducer so as to position the connecting support 3. The positioning edge far away from the shaft hole 35 is arc-shaped, the arc is coaxial with the shaft hole 35, and the diameter of the arc-shaped edge is equal to the diameter of the spigot 21 of the front end cover of the speed reducer. The number of the positioning blocks 33 is not less than two, and the number of the positioning blocks is preferably 3 in the embodiment. The plane of the connecting support 3 is connected with the end face of the front end cover of the speed reducer so as to axially position the connecting support 3 and the motor rotating shaft 11, and the positioning edge 331 of the positioning block 33 is connected with the inner circular surface of the spigot 21 so as to radially position the connecting support 3 and the motor rotating shaft 11.

The periphery of the shaft hole 35 is further provided with a bolt hole 34 for fixedly connecting the connecting bracket 3 and the speed reducer 2, wherein the bolt hole 34 is a through hole, and a bolt is inserted from the side of the connecting bracket 3 close to the motor, passes through the bolt hole 34 and then is locked on the speed reducer 2, so that the connecting bracket 3 and the motor 1 are locked on the speed reducer 2.

The connecting support 3 is formed by punching a steel plate with the thickness of less than 3mm, the thickness of the connecting support is uniform, and compared with die-casting, the thickness of the connecting support is greatly reduced by punching, and the weight is further reduced. The specific gravity of aluminum is 2.81, the specific gravity of steel is 7.85, the weight of the steel plate is 2.8 times that of aluminum, but the thickness of the aluminum die casting is more than 3 times that of a steel plate stamping part, so that the weight of the punch-formed connecting bracket is lower than that of the traditional die-casting connecting bracket. The weight of the die-cast connecting bracket is measured to be 0.35kg, and the weight of the punch-formed connecting bracket is reduced by 0.11kg relative to the die-cast connecting bracket. The utility model discloses with the weight reduction of linking bridge 3 about 30%, help lightening the weight of motor and linking bridge side, keep gear motor's balance.

Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any improvement of doing on technical scheme basis and equal replacement all fall into within the protection scope of the utility model.

Claims

1. The speed reducing motor comprises a speed reducer, a motor and a connecting support for connecting the speed reducer and the motor, and is characterized in that the connecting support is formed by punching a steel plate, a shaft hole for penetrating through a rotating shaft of the motor is formed in the connecting support, two sides of the connecting support are fixedly connected with the motor and the speed reducer respectively, and a bearing hole is formed in the rear end of a motor shell.

2. The reduction motor according to claim 1, wherein the connecting bracket is welded to the motor at one side surface thereof, and a through hole is formed in the outer periphery of the shaft hole, and a bolt is used to fix the connecting bracket to the reduction gear through the through hole.

3. The reducing motor according to claim 2, wherein a positioning block is arranged on a surface of one side of the connecting support and connected with a spigot of a front end cover of the reducing motor.

4. The gear motor according to claim 3, wherein the positioning block is a quadrilateral protrusion on the surface of the connecting support, wherein the side far away from the shaft hole is arc-shaped and the arc is concentric with the shaft hole, the arc-shaped side after punching is higher than the surface of the connecting support, the other three sides are connected with the surface of the connecting support, and the arc-shaped side of the positioning block has the same radian as the inner side surface of the front end cover spigot of the speed reducer and is connected with the inner side surface of the front end cover spigot of the speed reducer.