CN211930387U

CN211930387U - Waterproof motor

Info

Publication number: CN211930387U
Application number: CN202020741916.3U
Authority: CN
Inventors: 孔令民
Original assignee: Zhaoqing Dongling Electric Motor Co ltd
Current assignee: Zhaoqing Dongling Electric Motor Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-11-13
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a waterproof motor, include motor body, front end housing, pivot, seal assembly and get rid of the water lid, the pivot is installed at the motor this internally and is rotated by the motor body drive, the front end housing is installed on motor body, and the pivot is passed through antifriction bearing and is connected with the front end housing rotation, seal assembly is located between front end housing and the pivot, it fixes in the pivot to get rid of the water lid to rotate with the front end housing and be connected, get rid of and be equipped with the vortex formula recess in the water lid to the turning to the same with the pivot is revolved to the vortex formula recess, gets rid of the water lid lateral wall and opens the outage that has intercommunication vortex formula recess. Adopt the utility model discloses, realize preventing that water from splashing the inside function of motor, extension motor life in the course of the work.

Description

Waterproof motor

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a waterproof motor.

Background

When grinding glass and marble, the common waterproof motor is used with the grinding head in a matching way, and because spray water is needed to be adopted to cool in the grinding process, the sprayed water pressure is high, the water is easy to splash into the motor, and the motor internal components are corroded, so that the components are damaged. Therefore, a waterproof device is needed to be designed at the front end of the motor to prevent water from entering the motor when the motor works, so that the service life of the motor is prolonged.

Disclosure of Invention

The utility model aims to solve the technical problem that a waterproof motor is provided, realize preventing that water from splashing the inside function of motor, extension motor life in the course of the work.

In order to solve the technical problem, the utility model provides a waterproof motor, include motor body, front end housing, pivot, seal assembly and get rid of the water lid, the pivot is installed at the motor body and is rotated by the motor body drive, the front end housing is installed on the motor body, and the pivot is passed through antifriction bearing and is connected with the front end housing rotation, seal assembly is located between front end housing and the pivot, it fixes in the pivot to get rid of the water lid to rotate with the front end housing and be connected, get rid of and be equipped with vortex formula recess in the water lid to the turning to the same with the pivot of vortex formula recess soon, get rid of the water lid lateral wall and open the outage that has intercommunication vortex formula recess.

And a gap is formed between the water throwing cover and the front end cover and is positioned between the vortex-type groove and the rotating shaft.

Wherein the number of turns of the vortex-type groove is 3-5.

Wherein, it has vortex formula sealing strip to get rid of water lid embedded, and the material of vortex formula sealing strip is wear-resisting rubber.

The water throwing cover comprises a water throwing cover and a control valve, wherein the water throwing cover further comprises a control valve for opening or closing the liquid discharge hole, an installation seat extending outwards is arranged on the outer wall of the water throwing cover close to the liquid discharge hole, and the control valve is installed on the installation seat.

Wherein, the control valve includes valve body, spring and baffle, the valve body is installed on the mount pad, baffle and valve body sliding connection, the spring mounting is in the valve body to both ends are fixed with bottom and baffle in the valve body respectively, the valve body lateral wall is opened there is the through-hole, and during the spring compression, the upper surface of baffle is lower than the position of through-hole, and when the spring reset, the lower surface of baffle is higher than the position of through-hole.

The outer wall of the front end cover is provided with an annular groove, the annular groove is positioned in the water throwing cover, the bottom of the front end cover is provided with a water drainage groove communicated with the annular groove, and the water drainage groove extends out of the water throwing cover.

The sealing assembly comprises an oil seal and a gland, the oil seal is installed in the front end cover, the inner ring of the oil seal is installed on the rotating shaft, and the gland is installed on the front end cover to fix the position of the oil seal.

Implement the utility model has the advantages that: the motor body drives the rotating shaft to rotate, the water throwing cover rotates along with the rotating shaft, the water throwing cover throws away most of water splashed from the front of the motor body, a small part of water enters the vortex-type groove through the space between the water throwing cover and the rotating shaft, and the water flows along the vortex-type groove under the action of centrifugal force and is finally discharged out of the water throwing cover from the liquid discharge hole; in addition, still be provided with the control valve that is used for opening or closes the outage, water gets into vortex formula recess through the outage when avoiding the pivot to stop, enters into motor body inside from the front end housing with the pivot, further improves waterproof performance.

Drawings

Fig. 1 is a front view of a waterproof motor provided by the present invention;

FIG. 2 is an enlarged view taken at point I in FIG. 1;

fig. 3 is a schematic view of the control valve in the waterproof motor according to the present invention in an open state;

fig. 4 is the utility model provides a side view of water-slinging cover in waterproof motor.

In the figure: 1. a motor body; 2. a front end cover; 21. an annular groove; 22. a water discharge tank; 3. a rotating shaft; 4. a seal assembly; 41. oil sealing; 42. a gland; 5. a water throwing cover; 51. a scroll groove; 52. a drain hole; 53. a gap; 54. a swirl seal bar; 55. a mounting seat; 6. a control valve; 61. a valve body; 611. a through hole; 62. a spring; 63. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the utility model relates to a waterproof motor, which comprises a motor body 1, a front end cover 2, a rotating shaft 3, a sealing assembly 4 and a water throwing cover 5, wherein the motor body 1 is a motor in the prior art and comprises a casing, a stator, a rotor, a bearing, a fan blade, a fan housing and other parts, the rotating shaft 3 is installed in the motor body 1, the rotating shaft 3 is driven by the rotor in the motor body 1 to rotate, so that the motor body 1 can drive the rotating shaft 3 to rotate, the front end cover 2 is installed on the motor body 1, the rotating shaft 3 is rotatably connected with the front end cover 2 through a rolling bearing, the sealing assembly 4 is positioned between the front end cover 2 and the rotating shaft 3, the sealing assembly 4 plays a waterproof role, prevents water from entering the motor body 1 from a gap between the front end cover 2 and the rotating shaft 3, the water throwing cover 5 is fixed on the rotating shaft 3 and is, specifically, an interference fit is formed between the water throwing cover 5 and the rotating shaft 3, a scroll groove 51 is arranged in the water throwing cover 5, the rotation direction of the scroll groove 51 is the same as the rotation direction of the rotating shaft 3, a liquid discharge hole 52 communicated with the scroll groove 51 is formed in the side wall of the water throwing cover 5, in the embodiment, the rotating shaft 3 rotates positively and rotates clockwise, and the rotation direction of the scroll groove 51 is clockwise. When water enters the scroll-type groove 51, the water flows along the scroll-type groove 51 by a centrifugal force and is finally discharged from the drain hole 52.

In the working procedure of grinding marble or glass, a grinding head is arranged on the rotating shaft 3, the motor body 1 is electrified to drive the rotating shaft 3 to rotate forwards, and the grinding head and the water throwing cover 5 rotate along with the rotating shaft 3. In the grinding process, most of water splashed from the front of the motor body 1 is thrown away by the water throwing cover 5, and a small part of water enters the vortex-type groove 51 in the water throwing cover 5 from a gap between the water throwing cover 5 and the rotating shaft 3 or a gap between the water throwing cover 5 and the front end cover 2, flows along the vortex-type groove 51 under the action of centrifugal force and is finally discharged from the liquid discharge hole 52, so that the function of preventing water from entering the interior of the motor body 1 is realized.

Preferably, referring to fig. 1 and 2, a gap 53 is formed between the water slinging cover 5 and the front end cover 2, and the gap 53 is located between the scroll-type groove 51 and the rotating shaft 3. The gap 53 has a drainage function, and water enters the vortex-type groove 51 through the gap 53 after permeating between the water throwing cover 5 and the rotating shaft 3, so that the water can flow conveniently.

Preferably, referring to fig. 4, the number of turns of the scroll-type groove 51 is 3-5, and in the present embodiment, the number of turns of the scroll-type groove 51 is 4. The water flows out of the scroll-type groove 51 after being rotated for a plurality of times, and in the process, the turning radius of the water is gradually increased, and the speed is gradually increased, so that the water stably flows in the scroll-type groove 51, and finally smoothly flows to the tail end of the scroll-type groove 51 and finally flows out of the liquid discharge hole 52.

Preferably, referring to fig. 1 and 2, the water throwing cover 5 is embedded with a scroll sealing strip 54, specifically, the water throwing cover 5 may be provided with an installation groove, the installation groove is located at the top of the side wall of the scroll groove 51, the installation groove fixes the scroll sealing strip 54 in a glue sticking manner, the sealing performance between the surfaces of the bottom front end cover 2 in the water throwing cover 5 is improved, and water is prevented from directly permeating into the other scroll groove 51 from the top of the scroll groove 51. Because the water throwing cover 5 rotates relative to the front end cover 2, the vortex type sealing strip 54 is made of wear-resistant rubber, the wear resistance of the vortex type sealing strip 54 is improved, and the service life of the vortex type sealing strip 54 is prolonged.

Preferably, referring to fig. 1, 2 and 3, the water-throwing cover 5 further comprises a control valve 6, an outwardly extending mounting seat 55 is arranged on the outer wall of the water-throwing cover 5 close to the liquid discharge hole 52, and the control valve 6 is mounted on the mounting seat 55. In the grinding process, the rotating shaft 3 rotates, the control valve 6 is opened, the liquid drainage hole 52 is in an open state, and water in the scroll-type groove 51 can be drained from the liquid drainage hole 52; in the non-grinding state, the rotating shaft 3 is stopped, the control valve 6 is closed, the drain hole 52 is in a closed state, and external water is prevented from entering the scroll-type groove 51 from the drain hole 52, so that the possibility of water entering the motor body 1 is reduced.

Further, the control valve 6 includes a valve body 61, a spring 62 and a baffle 63, the valve body 61 is mounted on the mounting seat 55, the mounting manner may be a threaded connection, the baffle 63 is slidably connected with the valve body 61, the spring 62 is mounted in the valve body 61, and both ends of the spring are respectively fixed with the inner bottom of the valve body 61 and the baffle 63, the side wall of the valve body 61 is provided with a through hole 611, in this embodiment, as shown in fig. 2, the valve body 61 is a cylinder, and the through hole 611 is located on the arc-shaped peripheral wall of the valve body 61. When the rotating shaft 3 rotates, the baffle 63 moves outwards under the action of centrifugal force, namely the baffle 63 moves towards the inner bottom of the valve body 61, the baffle 63 compresses the spring 62, the upper surface of the baffle 63 is lower than the position of the through hole 611 at the moment, as shown in fig. 3, the liquid discharge hole 52 is communicated with the through hole 611, and water can be discharged through the liquid discharge hole 52 and the through hole 611; when the rotating shaft 3 is stationary, the spring 62 extends under the action of the resilient force, the baffle 63 is reset, and the lower surface of the baffle 63 is higher than the through hole 611 at the moment, as shown in fig. 2, the drainage hole 52 is not communicated with the through hole 611, so that water is prevented from permeating into the scroll groove 51 from the outside through the drainage hole 52.

Preferably, referring to fig. 1, the front end cover 2 is provided with an annular groove 21 on the outer wall, the annular groove 21 is positioned in the water-throwing cover 5, the bottom of the front end cover 2 is provided with a water drainage groove 22 communicated with the annular groove 21, and the water drainage groove 22 extends out of the water-throwing cover 5. Because the annular groove 21 is arranged, after part of water permeates from the inner wall of the water throwing groove and the outer wall of the front end cover 2, the water can be gathered in the annular groove 21, flows downwards along the annular groove 21 and is finally discharged out of the front end cover 2 through the water discharging groove 22, the possibility that the water permeates into the inside of the water throwing cover 5 from the position between the inner wall of the water throwing groove and the outer wall of the front end cover 2 is reduced, and the waterproof performance is improved.

Preferably, referring to fig. 1, the seal assembly 4 includes an oil seal 41 and a gland 42, the oil seal 41 is mounted in the front end cover 2, an inner ring of the oil seal 41 is mounted on the rotary shaft 3, and the gland 42 is mounted on the front end cover 2 to fix the position of the oil seal 41. The oil seal 41 can be a framework oil seal, the framework oil seal is arranged between the front end cover 2 and the rotating shaft 3, the waterproof performance between the front end cover 2 and the rotating shaft 3 is improved, and the possibility that water enters the interior of the motor body 1 is further reduced.

The working principle of the utility model is as follows: the motor body 1 is electrified, the motor body 1 drives the rotating shaft 3 to rotate, the water throwing cover 5 rotates along with the rotating shaft 3, in the grinding process, most of water splashed from the front of the motor body 1 is thrown away by the water throwing cover 5, a small part of water enters the water throwing cover 5 from a gap between the water throwing cover 5 and the rotating shaft 3 and flows into the vortex-type groove 51 through the gap 53, the water flows along the vortex-type groove 51 under the action of centrifugal force, the baffle 63 moves outwards under the action of centrifugal force, the spring 62 is compressed under pressure, the liquid discharge hole 52 is communicated with the through hole 611, the water in the vortex-type groove 51 is discharged out of the water throwing cover 5 through the liquid discharge hole 52 and the through hole 611 to avoid the water from permeating into the motor body 1 from the space between the water throwing cover 5 and the rotating shaft 3, and the other small part of water permeates from the space between the water throwing cover 5 and the front end cover 2, converges into the annular groove 21 and then flows downwards along, finally, the water is discharged out of the front end cover 2 through the drainage groove 22, so that the water is further prevented from permeating between the water throwing cover 5 and the front end cover 2; when the grinding is suspended, the rotation of the rotating shaft 3 is stopped, the spring 62 drives the baffle 63 to move under the action of the resilience force, so that the liquid discharge hole 52 is not communicated with the through hole 611, and the water is prevented from flowing into the water slinging cover 5 from the liquid discharge hole 52. Adopt the utility model discloses, realize preventing that water from spattering the function in the motor, extension motor life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A waterproof motor is characterized by comprising a motor body (1), a front end cover (2), a rotating shaft (3), a sealing component (4) and a water throwing cover (5), the rotating shaft (3) is arranged in the motor body (1) and is driven by the motor body (1) to rotate, the front end cover (2) is arranged on the motor body (1), the rotating shaft (3) is rotationally connected with the front end cover (2) through a rolling bearing, the sealing component (4) is positioned between the front end cover (2) and the rotating shaft (3), the water throwing cover (5) is fixed on the rotating shaft (3), and is rotationally connected with the front end cover (2), a vortex groove (51) is arranged in the water throwing cover (5), the rotation direction of the vortex-type groove (51) is the same as the rotation direction of the rotating shaft (3), and a liquid discharge hole (52) communicated with the vortex-type groove (51) is formed in the side wall of the water throwing cover (5).

2. A waterproof motor according to claim 1, wherein a gap (53) is formed between the water-throwing cover (5) and the front end cover (2), and the gap (53) is located between the scroll-type groove (51) and the rotating shaft (3).

3. A waterproof motor according to claim 1, wherein the number of turns of the scroll-type groove (51) is 3 to 5.

4. The waterproof motor according to claim 1, wherein a vortex type sealing strip (54) is embedded in the water throwing cover (5), and the vortex type sealing strip (54) is made of wear-resistant rubber.

5. A waterproof motor according to claim 1, further comprising a control valve (6) for opening or closing the drain hole (52), wherein the outer wall of the water-throwing cover (5) is provided with an outwardly extending mounting seat (55) near the drain hole (52), and the control valve (6) is mounted on the mounting seat (55).

6. The waterproof motor according to claim 5, wherein the control valve (6) comprises a valve body (61), a spring (62) and a baffle (63), the valve body (61) is mounted on the mounting seat (55), the baffle (63) is slidably connected with the valve body (61), the spring (62) is mounted in the valve body (61), two ends of the spring are respectively fixed with the inner bottom of the valve body (61) and the baffle (63), a through hole (611) is formed in the side wall of the valve body (61), when the spring (62) is compressed, the upper surface of the baffle (63) is lower than the position of the through hole (611), and when the spring (62) is reset, the lower surface of the baffle (63) is higher than the position of the through hole (611).

7. The waterproof motor according to claim 1, wherein the outer wall of the front end cover (2) is provided with an annular groove (21), the annular groove (21) is positioned in the water-throwing cover (5), the bottom of the front end cover (2) is provided with a water drainage groove (22) communicated with the annular groove (21), and the water drainage groove (22) extends out of the water-throwing cover (5).

8. A waterproof motor according to claim 1, wherein the seal assembly (4) comprises an oil seal (41) and a gland (42), the oil seal (41) is mounted in the front end cover (2), the inner ring of the oil seal (41) is mounted on the rotating shaft (3), and the gland (42) is mounted on the front end cover (2) to fix the position of the oil seal (41).