CN212137418U

CN212137418U - Detachable motor sealing structure

Info

Publication number: CN212137418U
Application number: CN202020919217.3U
Authority: CN
Inventors: 余健; 廉云云
Original assignee: Hengdian Group Innuovo Electric Co Ltd
Current assignee: Hengdian Group Innuovo Electric Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-11
Anticipated expiration: 2030-05-27

Abstract

The utility model aims at providing a can reuse, resources are saved, practice thrift manpower and time, long service life, improve sealed effect's motor seal structure that can install and remove. In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a motor seal structure that can install and remove, includes front end housing and the rear end cap at casing and casing both ends, the inner of rear end cap is equipped with the screw thread blind hole, the front end housing is equipped with the through-hole that link up the front end housing both ends, and the screw passes behind the through-hole of front end housing and the screw thread blind hole screw-thread fit of rear end cap the screw is equipped with the sealing washer between the through-hole of screw and front end housing.

Description

Detachable motor sealing structure

Technical Field

The utility model relates to a seal structure especially relates to a motor seal structure that can install and remove.

Background

The existing motors use epoxy glue to seal the screws and the holes that mate with the screws. The epoxy glue has long glue adding time and long curing time, so that the motor is inconvenient to assemble.

When the motor is maintained, the sealing layer formed by the epoxy glue can be damaged by taking out the screw, and the motor is disassembled after the screw is taken out. After the motor is repaired, the epoxy glue in the hole needs to be cleaned, the screw is installed in place, and finally the epoxy glue is used for sealing the screw and the hole matched with the screw. Because the sealing layer of epoxy glue can not reuse, there are the problem that causes the wasting of resources, extravagant manpower and time, reduce the assembly and the maintenance efficiency of motor.

Disclosure of Invention

The utility model aims at providing a can reuse, resources are saved, practice thrift manpower and time, long service life, improve sealed effect's motor seal structure that can install and remove.

In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides a motor seal structure that can install and remove, includes front end housing and the rear end cap at casing and casing both ends, the inner of rear end cap is equipped with the screw thread blind hole, the front end housing is equipped with the through-hole that link up the front end housing both ends, and the screw passes behind the through-hole of front end housing and the screw thread blind hole screw-thread fit of rear end cap the screw is equipped with the sealing washer between the through-hole of screw and front end housing.

The sealing ring is used for replacing epoxy glue to seal the motor, so that glue adding time and curing time are saved, the mounting and dismounting efficiency of the motor is improved, and convenience is brought to mounting and maintenance of the motor by mounting personnel and maintenance personnel. When the maintenance, take out the screw and can not destroy the sealing washer, realize the reuse of sealing washer, resources are saved. Because the sealing ring can not be damaged in the maintenance, a new sealing ring is not needed to be replaced after the maintenance. The sealing washer improves the maintenance efficiency of motor, practices thrift manpower and time. The sealing ring installation steps are as follows: the locking piece penetrates through the sealing ring and the abdicating hole to be matched with the threaded blind hole to lock the motor shell.

Preferably, the sealing ring is composed of a fixing layer of the outer ring and a deformation sealing layer of the inner ring, and the thickness of the fixing layer is smaller than that of the deformation sealing layer. The fixed layer can prevent the deformation sealing layer from twisting and rolling in the mounting and dismounting process so as to improve the sealing effect of the motor. The fixing layer can continue to apply force to the sealing layer after the elastic force of the sealing layer fails, so that the sealing layer still keeps clinging to the screw rod, and the service life of the sealing ring is prolonged. The fixing layer can prevent the deformation sealing layer from being excessively squeezed and being in a tight state to shorten the service life of the deformation sealing layer. The thickness of the fixing layer is smaller than that of the deformation sealing layer, and the deformation sealing layer is extruded by the screw to be tightly attached to the screw.

Preferably, the deformed sealing layer is provided with a projection extending to the inner side of the deformed sealing layer, and the cross section of the projection is triangular. The bulge with the triangular cross section facilitates the bending of the bulge so as to fill the gap between the wall of the through hole and the locking piece and improve the sealing effect of the detachable motor sealing structure.

Preferably, the front end cover is provided with a counter bore, and the counter bore is coaxial with the abdicating hole. The counter bore can accommodate the screw head, make the screw head not expose on the external surface of the electrical machinery, reduce the space that the electrical machinery takes up.

Preferably, an annular groove is formed at the contact position of the screw and the inner side of the sealing ring. The groove can be used as a tool withdrawal groove of the screw, and can also accommodate the deformed sealing layer extruded when the deformed sealing layer is extruded, so that the deformed sealing layer is prevented from being in a tightened state for a long time, and the service life of the deformed sealing layer is shortened.

Preferably, the surface of the annular groove contacting with the inner side of the sealing ring is an arc surface. The contact surface of the groove and the sealing ring is a cambered surface, so that the sealing ring is more closely attached to the annular groove, and the sealing effect of the detachable motor sealing structure is improved.

The utility model has the advantages of it is following: the motor can be repeatedly utilized, resources are saved, labor and time are saved, and the motor is convenient to assemble and maintain; the time for assembling and maintaining the motor is saved; the difficulty of assembling and maintaining the motor is reduced; the service life is long; the sealing effect of the detachable motor sealing structure is improved; the space occupied by the motor is reduced.

Drawings

FIG. 1 is a schematic view of a removable motor seal arrangement;

FIG. 2 is another schematic structural view of a detachable motor sealing structure;

fig. 3 is a schematic structural diagram of the sealing ring.

Detailed Description

As shown in fig. 1, the detachable motor sealing structure comprises a casing 1, and a front end cover 2 and a rear end cover 3 at two ends of the casing 1, wherein the inner end of the rear end cover 3 is provided with a threaded blind hole 31, the front end cover 2 is provided with a through hole 21 penetrating through two ends of the front end cover, and the front end cover 2 is provided with a counter bore 22 coaxial with the through hole 21. As shown in fig. 1 to 2, the screw 4 passes through the through hole 21 of the front end cover 2 and then is in threaded fit with the threaded blind hole 31 at the inner end of the rear end cover 3, and a sealing ring 5 is arranged between the screw 4 and the through hole 21 of the front end cover 2.

As shown in fig. 3, the gasket is formed by integrally bonding and vulcanizing a fixing layer 51 and a strain-sealing layer 52, the fixing layer 51 is located outside the strain-sealing layer 52, and the thickness of the fixing layer 51 is smaller than that of the strain-sealing layer 52. The deformed sealing layer 52 is provided with a projection 53 toward the inner side of the seal ring 5, and the section of the projection 53 is triangular.

As shown in FIG. 2, an annular groove is arranged at the contact part of the inner side of the sealing ring 5 and the screw 4, and the contact surface of the sealing ring and the screw is an arc surface.

And inserting a screw into an inner hole of the sealing ring, penetrating through the counter bore and the through hole of the front end cover, in threaded fit with the threaded blind hole of the rear end cover, screwing the screw, extruding the deformed sealing layer by the screw head, and tightly attaching the deformed sealing layer to the screw rod. When the motor is disassembled, the screw is unscrewed, and the screw is taken out from the through hole, the threaded blind hole and the counter bore, so that the shell and the end covers at the two ends of the shell can be opened to maintain the motor.

Claims

1. The utility model provides a motor seal structure that can install and remove, front end housing (2) and rear end cap (3) including casing (1) and casing (1) both ends, its characterized in that, the inner of rear end cap (3) is equipped with screw thread blind hole (31), front end cap (2) are equipped with through-hole (21) that link up front end housing (2) both ends, and screw (4) pass behind through-hole (21) of front end housing (2) with inner screw thread blind hole (31) screw-thread fit of rear end cap (3), be equipped with sealing washer (5) between screw (4) and through-hole (21) of front end housing (2).

2. The detachable motor sealing structure according to claim 1, wherein the sealing ring (5) is composed of a fixing layer (51) of an outer ring and a deformed sealing layer (52) of an inner ring, and the thickness of the fixing layer (51) is smaller than that of the deformed sealing layer (52).

3. The detachable motor sealing structure according to claim 2, wherein the deformed sealing layer (52) is provided with a protrusion (53) extending toward the inside of the deformed sealing layer, and the cross section of the protrusion (53) is triangular.

4. The detachable motor sealing structure according to claim 1, 2 or 3, characterized in that the front end cover is provided with a counter bore (22), and the counter bore (22) is coaxial with the through hole.

5. A detachable motor sealing structure according to any one of claims 1-3, characterized in that an annular groove is provided at the contact position of the screw and the inner side of the sealing ring (5).

6. The detachable motor sealing structure according to claim 5, wherein the surface of the annular groove contacting the inner side of the sealing ring (5) is a cambered surface.