CN215682009U

CN215682009U - Flange type dust explosion-proof vibration motor

Info

Publication number: CN215682009U
Application number: CN202122117123.1U
Authority: CN
Inventors: 郭代春; 攸文; 冀续银
Original assignee: Xinxiang Binhe Motor Co ltd
Current assignee: Xinxiang Binhe Motor Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-01-28
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a flange type dust explosion-proof vibration motor, which comprises a flange type structure arranged in the middle of a dust explosion-proof vibration motor shell, wherein two ends of the motor shell are fixedly connected with motor end covers, a rotating bearing and a rotating ring are arranged on a rotating shaft, bearing inner gland covers are fixedly connected on the inner sides of the motor end covers in the motor shell, an O-shaped ring I is arranged between the motor shell and the motor end covers, a framework oil seal is arranged between the rotating shaft and the motor end covers, a VD seal ring is arranged between the rotating shaft and the outer walls of the motor end covers, a wiring cavity is arranged on a bulge of the motor shell, a wiring cavity gland cover is fixedly connected on the upper surface of the bulge, an O-shaped ring II is arranged on the bottom wall of the wiring cavity gland cover, and a cable leading-in device is connected on the side wall of the bulge by screw threads, the utility model is suitable for a mixed explosive place in which dust and combustible gas are simultaneously stored, and the explosion-proof and dust-proof sealing structure has the advantages of simple processing and assembly and the like.

Description

Flange type dust explosion-proof vibration motor

Technical Field

The utility model relates to the technical field of explosion-proof motors, in particular to a flange type dust explosion-proof vibration motor.

Background

Due to the domestic production safety pressure, gaps of various explosion-proof equipment, in particular explosion-proof vibration motors, are large; the existing various explosion-proof vibrating motors are mostly designed with specific explosion-proof and dust-proof structures aiming at explosion-proof environments, but the explosion-proof type is single, the explosion-proof vibrating motors cannot be applied to mixed explosive places with combustible dust and combustible gas, the dust-proof and explosion-proof performances are poor, the explosion-proof and dust-proof sealing structures are complex to process and assemble, the failure damage rate of the explosion-proof and dust-proof sealing structures is high, the safety performance of the vibrating motor is low, the service life is short, the mounting structure is unreasonable, the structure is strong and low, the heat dissipation performance is poor, and the like.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the existing defects, and provide a flange type dust explosion-proof vibration motor which can be suitable for a mixed explosive place containing combustible dust and combustible gas at the same time, has good dustproof and explosion-proof performance, is simple to process and assemble an explosion-proof and dust-proof sealing structure, reduces the failure damage rate of the explosion-proof and dust-proof sealing structure, has high safety performance, long service life, reasonable installation structure, strong structure and good heat dissipation performance, and can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a flange type dust explosion-proof vibration motor comprises a rotating shaft arranged in a motor shell, wherein motor end covers are fixedly connected to two ends of the motor shell, rotating bearings are arranged at positions, corresponding to the motor end covers, of the rotating shaft, rotating rings are arranged at the inner sides of the rotating bearings of the rotating shaft, bearing inner gland covers matched with the rotating rings are fixedly connected to the inner sides of the motor end covers in the motor shell, the bearing inner gland covers are fixedly connected with the motor end covers, O-shaped rings I are arranged at the edges, connected with the motor shell and the motor end covers, framework oil seals are arranged at the positions, contacted with the inner walls of the motor end covers, of the rotating shaft, VD sealing rings are arranged at the positions, contacted with the outer walls of the motor end covers, protrusions are arranged on the motor shell, wiring cavities are arranged on the upper surfaces of the protrusions, wiring boards are arranged in the wiring cavities, and wiring cavity gland covers are fixedly connected to the upper surfaces of the protrusions, and the bottom wall of the wiring cavity gland is provided with a second O-shaped ring, and the side wall of the bulge on the motor shell is in threaded connection with a cable lead-in device.

Furthermore, an epoxy glue layer is poured and sealed at the bottom end inside the wiring cavity, and the wiring board is fixed in the epoxy glue layer.

Further, the cable leading-in device comprises an explosion-proof tube, the explosion-proof tube is of a hollow step shaft-shaped structure, an O-shaped ring III is nested on the explosion-proof tube located on a protruding shaft facing the protruding direction, a pressing cap is connected to one end, away from the protruding end, of the explosion-proof tube through threads and is of a hollow step shaft structure, a step groove is formed in one end, away from the protruding end, of the explosion-proof tube, a sealing ring is nested in the step groove, and a gasket is arranged on the side wall, located on the pressing cap, of the sealing ring.

Furthermore, the motor casing is provided with a flange ring at a position behind the center of the outer surface, the flange ring is provided with a flange spigot on the side wall facing the front end of the motor casing, and the flange spigot is provided with a positioning bulge on the side wall far away from the flange ring

Furthermore, the outer surface of the motor shell is transversely provided with a main reinforcing rib at a position corresponding to the positioning protrusion, the main reinforcing rib and the positioning protrusion are of an integral structure, and the outer surface of the motor shell is transversely provided with a heat dissipation reinforcing rib.

Compared with the prior art, the utility model has the beneficial effects that: the flange type dust explosion-proof vibration motor improves the explosion-proof performance of the vibration motor through a motor end cover, a bearing inner gland, a rotating ring, a wiring cavity gland and a cable leading-in device, seals and prevents dust for the vibration motor through an O-shaped ring I, an O-shaped ring II, an O-shaped ring III, a VD sealing ring and the sealing ring, realizes two explosion-proof forms of dust explosion prevention and gas explosion prevention, has good dust and explosion-proof performance, can be suitable for mixed explosive places simultaneously storing combustible dust and combustible gas, adopts an integrated structure of a motor shell and a wiring cavity, reduces the processing of an explosion-proof joint surface and a dust-proof sealing structure, reduces the assembly of explosion-proof parts, reduces the failure damage rate of the explosion-proof joint surface and the dust-proof sealing surface, improves the safety performance and the service life of the vibration motor, enables the stress of the vibration motor and vibration equipment to be more reasonable through the arrangement position of the flange ring, and enables the vibration motor to be conveniently connected through the positioning bulges, The stability is improved, and the structural strength, the explosion-proof performance and the heat dissipation performance of the vibration motor are enhanced through the main reinforcing ribs and the heat dissipation reinforcing ribs.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side partial cross-sectional view of the housing of the present invention;

FIG. 3 is an enlarged view of a portion of the interior of the housing of the present invention;

FIG. 4 is a schematic view of a cable entry device according to the present invention;

fig. 5 is a schematic view of a motor casing structure according to the present invention.

In the figure: 1 motor shell, 101 flange ring, 102 flange spigot, 103 positioning bulge, 104 main reinforcing rib, 105 heat dissipation reinforcing rib, 2O-shaped ring I, 3 motor end cover, 4 skeleton oil seal, 5 VD sealing ring, 6 bearing inner gland, 7 wiring cavity, 8 wiring board, 9 wiring cavity gland, 10O-shaped ring II, 11 epoxy glue layer, 12 rotating shaft, 13 cable leading-in device, 131 explosion-proof pipe, 132O-shaped ring III, 133 sealing ring, 134 gasket and 135 pressing cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present invention provides a technical solution: a flange type dust explosion-proof vibration motor comprises a rotating shaft 12 arranged in a motor shell 1, wherein both ends of the motor shell 1 are fixedly connected with motor end covers 3, the rotating shaft 12 is provided with rotating bearings at positions corresponding to the motor end covers 3, the rotating shaft 12 is provided with rotating rings at inner sides of the rotating bearings, the motor shell 1 is fixedly connected with a bearing inner gland 6 matched with the rotating rings at inner sides of the motor end covers 3, the bearing inner gland 6 is fixedly connected with the motor end covers 3, the edges of the motor shell 1 connected with the motor end covers 3 are provided with O-shaped rings I2, the positions of the rotating shaft 12 contacted with the inner walls of the motor end covers 3 are provided with framework oil seals 4, the positions of the rotating shaft 12 contacted with the outer walls of the motor end covers 3 are provided with VD seal rings 5, the motor shell 1 is provided with bulges, and the upper surfaces of the bulges are provided with wiring cavities 7, a wiring board 8 is arranged in the wiring cavity 7, a wiring cavity gland 9 is fixedly connected to the upper surface of the protrusion, an O-shaped ring II 10 is arranged on the bottom wall of the wiring cavity gland 9, a cable leading-in device 13 is connected to the side wall of the protrusion on the motor casing 1 in a threaded manner, a planar flame-proof joint surface is formed by the motor casing 1 and the wiring cavity gland 9, a planar flame-proof joint surface is formed by the motor casing 1 and the motor end cover 3, a planar flame-proof joint surface is formed by the bearing inner gland 6 and the motor end cover 3, a rotary flame-proof joint surface is formed by the rotor on the rotating shaft 12 and the bearing inner gland 6, a threaded flame-proof joint surface is formed by the cable leading-in device 13 and the protrusion on the motor casing 1, the flame-proof performance is good, the motor casing 1 and the motor end cover 3 are sealed and dustproof by an O-shaped ring I2, and the rotating shaft 12 and the motor end cover 3 are sealed and dustproof by a VD seal ring 5, carry out the oil blanket to countershaft 12 and motor end cover 3 through skeleton oil blanket 4, it is dustproof to seal the arch on wiring chamber gland 9 and the motor casing 1 through two 10 pairs of O shape circles, it is effectual to prevent dust, vibrating motor's security performance is high, through motor casing 1 and wiring cavity 7 structure as an organic whole, in the production and processing process, the processing of flame proof composition surface and the seal structure processing of preventing dust have been reduced, the assembly of explosion-proof part has been reduced, the fault damage rate of flame proof composition surface and dust-proof sealing surface has been reduced, improve vibrating motor's security performance and life.

Furthermore, an epoxy glue layer 11 is poured and sealed at the bottom end inside the wiring cavity 7, the wiring board 8 is fixed in the epoxy glue layer 11, the bottom of the wiring board 8 is immersed by the epoxy glue layer 11 for secondary fixing, the wiring cavity 7 and the inside of the motor shell 1 are separated through the poured epoxy glue layer 11, a passage of the wiring cavity is blocked, and the sealing performance and the safety of the vibration motor are improved.

Further, the cable leading-in device 13 includes a burst tube 131, the burst tube 131 is of a hollow stepped shaft structure, an O-shaped ring third 132 is nested on a protruding boss shaft facing the explosion tube 131, a pressing cap 135 is connected to one end, far away from the protrusion, of the burst tube 131 through a thread, the pressing cap 135 is of a hollow stepped shaft structure, a stepped groove is formed in one end, far away from the protrusion, of the burst tube 131, a sealing ring 133 is nested in the stepped groove, the sealing ring 133 is arranged on a side wall facing the pressing cap 135, the explosion tube 131 and the protrusion are sealed and dustproof through the O-shaped ring third 132, the sealing ring 134 and the sealing ring 133 are pressed through the pressing cap 135, and therefore the sealing ring 133 seals and prevents dust of cables inside the explosion tube, and the dustproof effect is further improved.

Further, motor housing 1 is equipped with flange ring 101 for the position department of surface center back to one side, and flange ring 101 is equipped with flange tang 102 on the lateral wall that is located towards motor housing 1 front end, flange tang 102 is equipped with location arch 103 on the lateral wall that is located away from flange ring 101, when can guaranteeing vibrating motor and the vibration equipment that the outside was equipped with through the position that sets up of flange ring 101, the center of motor falls on the connecting piece of vibrating equipment, make vibrating motor and vibrating equipment atress more reasonable, through the protruding 103 effect that plays the location support to the hold-down flange that is used for vibrating motor assembly connection in location, guarantee that flange ring 101 and hold-down flange have higher concentricity, vibrating motor connects conveniently, it is firm.

Further, the outer surface of the motor housing 1 is transversely provided with a main reinforcing rib 104 at a position corresponding to the positioning protrusion 103, the main reinforcing rib 104 and the positioning protrusion 103 are of an integral structure, the outer surface of the motor housing 1 is transversely provided with a heat dissipation reinforcing rib 105, and the structural strength, the explosion-proof performance and the heat dissipation performance of the vibration motor are enhanced through the main reinforcing rib 104 and the heat dissipation reinforcing rib 105.

When in use: a vibration motor is fixed on vibration equipment arranged outside through a flange ring 101, a motor shell 1 and a wiring cavity gland 9 form a plane explosion-proof joint surface, the motor shell 1 and a motor end cover 3 form a plane explosion-proof joint surface, a bearing inner gland 6 and a motor end cover 3 form a plane explosion-proof joint surface, a rotor on a rotating shaft 12 and the bearing inner gland 6 form a rotary explosion-proof joint surface, a cable introducing device 13 and a bulge on the motor shell 1 form a thread explosion-proof joint surface, an O-shaped ring I2 seals and prevents dust on the motor shell 1 and the motor end cover 3, a VD seal ring 5 seals and prevents dust on the rotating shaft 12 and the motor end cover 3, a framework oil seal 4 seals and prevents dust on the rotating shaft 12 and the motor end cover 3, an O-shaped ring II 10 seals and prevents dust on the wiring cavity gland 9 and a bulge on the motor shell 1, and an O-shaped ring III 132 seals and prevents dust between the explosion tube 131 and the bulge, tightening the compression cap 135 compresses the gasket 134 and the gasket 133, so that the gasket 133 seals and prevents dust from the cable inside.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flange formula dust flame proof vibrating motor, including setting up with the pivot in the motor housing, the both ends fixedly connected with motor end cover of motor housing all is equipped with swivel becket, its characterized in that in the inboard that lies in rolling bearing in the pivot: the utility model discloses a motor, including motor shell, motor end cover, pivot and motor end cover, the inboard equal fixedly connected with of motor end cover that is located of motor shell and bearing inner gland of rotating ring looks adaptation, and bearing inner gland all with motor end cover fixed connection, the edge that motor shell and motor end cover are connected all is equipped with O shape circle one, and the position department of pivot and the contact of motor end cover inner wall all is equipped with the skeleton oil blanket, and the position department of pivot and the contact of motor end cover outer wall all is equipped with the VD sealing washer, the last arch that is equipped with of motor shell, and this bellied upper surface has seted up the wiring cavity, be equipped with the wiring board in the wiring cavity, bellied last fixed surface is connected with wiring chamber gland, and wiring chamber gland bottom wall is equipped with O shape circle two, threaded connection has cable introducing device on the bellied lateral wall on the motor shell.

2. The flange type dust explosion-proof vibration motor according to claim 1, characterized in that: an epoxy glue layer is poured and sealed at the bottom end inside the wiring cavity, and the wiring board is fixed in the epoxy glue layer.

3. The flange type dust explosion-proof vibration motor according to claim 1, characterized in that: the cable leading-in device comprises an explosion-proof tube, the explosion-proof tube is of a hollow step shaft-shaped structure, an O-shaped ring III is nested on a convex shaft located towards the bulge, a pressing cap is connected to one end, away from the bulge, of the explosion-proof tube in a threaded mode, the pressing cap is of a hollow step shaft structure, a step groove is formed in one end, away from the bulge, of the explosion-proof tube, a sealing ring is nested in the step groove, and a gasket is arranged on the side wall, located towards the pressing cap, of the sealing ring.

4. The flange type dust explosion-proof vibration motor according to claim 1, characterized in that: the motor shell is characterized in that a flange ring is arranged at a position behind the center of the outer surface of the motor shell, a flange spigot is arranged on the side wall, facing the front end of the motor shell, of the flange ring, and a positioning bulge is arranged on the side wall, far away from the flange ring, of the flange spigot.

5. The flange type dust explosion-proof vibration motor according to claim 4, characterized in that: the motor shell is characterized in that a main reinforcing rib is transversely arranged at a position corresponding to the positioning protrusion on the outer surface of the motor shell, the main reinforcing rib and the positioning protrusion are of an integrated structure, and a heat dissipation reinforcing rib is transversely arranged on the outer surface of the motor shell.