CN212028657U

CN212028657U - Leak-proof respirator of bearing bush type motor

Info

Publication number: CN212028657U
Application number: CN202020287304.1U
Authority: CN
Inventors: 李凯
Original assignee: Changhang Motor Co ltd Xiangtan City
Current assignee: Changhang Motor Co ltd Xiangtan City
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-11-27
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a leak protection respirator of bearing bush formula motor, including respiratory tube and breathing cover, respiratory tube and breathing cover sliding connection, the respiratory orifice has been seted up to one side of respiratory tube, and the inside of respiratory orifice articulates there is breathing board, and the inside sliding connection of respiratory tube has the piston, through spring elastic connection between piston and the respiratory tube. The utility model discloses when using, when the inside pressure of oil gear is too high, the piston jack-up that makes progress is passed through the respiratory tube to inside atmospheric pressure this moment, and the piston passes through the connecting rod and drives the cover rebound of breathing, and the breathing cover is when removing to a locating position, breathes the board outwards to open this moment to carry out the pressure release through the breathing hole, when the inside pressure of oil gear resumes to normal the time, the spring drove the piston and moves down this moment, breathes the cover and pushes down the breathing plate, and the breathing hole is covered to the breathing plate, thereby seals oil gear, the utility model discloses can carry out the pressure release to oil gear automatically, thereby maintain the pressure balance in the oil gear, prevent the oil leak.

Description

Leak-proof respirator of bearing bush type motor

Technical Field

The utility model relates to a motor, in particular to leak protection respirator of bearing bush formula motor.

Background

At present, a high-voltage bearing bush motor is applied to all fields of national industrial production, and is approved by users by the advantages of convenient maintenance, long service life and the like, but when the bearing bush motor runs, a motor rotor is a rotating part with extremely large rotational inertia, a bearing bush oil slinger throws lubricating oil in an oil groove and then is dispersed by flowing gas to form thinner oil drop oil mist, and simultaneously along with the running of a unit, the oil temperature and the tile temperature can be correspondingly increased, so that positive pressure is generated inside a bearing box, and the oil mist is enabled to escape along with the flowing of air and leak to the outside of the oil shield of the unit.

When an existing high-pressure bearing bush motor runs, an oil gear needs to be exhausted, pressure is usually released in a mode that an exhaust hole is directly formed in the shaft oil gear, the pressure inside the oil gear is affected by the temperature of oil, when the temperature of the oil is too high, the pressure inside the oil gear is large, the method cannot effectively control the pressure inside the oil gear, and oil leakage is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a leak protection respirator of bearing bush formula motor to provide the mode of directly seting up the exhaust hole among the solution above-mentioned background art and carry out when the pressure release oil temperature is too high, oil shelves internal pressure is big, and this kind of method can't carry out effective control to the internal pressure of oil shelves, produces the problem of oil leak easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a leak protection respirator of bearing bush formula motor, includes respiratory tube and breathing cover, respiratory tube and breathing cover sliding connection, the respiratory hole has been seted up to one side of respiratory tube, the inside of respiratory hole articulates there is breathing board, the inside sliding connection of respiratory tube has the piston, through spring elastic connection between piston and the respiratory tube, the top fixedly connected with connecting rod of piston, the top of connecting rod run through the respiratory tube and with breathe cover fixed connection.

As an optimized technical scheme of the utility model, breathe board and breathing hole looks adaptation, breathe the inside of board and inlay sealed cushion.

As an optimized technical scheme of the utility model, the diameter of piston equals with the internal diameter of breathing tube, the external diameter of breathing tube equals with the internal diameter of breathing cover.

As a preferred technical scheme of the utility model, two spouts have been seted up to the inner wall of breathing cover, the equal fixedly connected with slider in both sides of respiratory tube, spout and slider sliding connection.

As a preferred technical scheme of the utility model, the bottom fixedly connected with fixation nut of respiratory tube, fixation nut's bottom fixedly connected with thread bush.

As an optimized technical proposal of the utility model, the outer wall of the breathing plate is attached to the inner wall of the breathing sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when using, pass through the thread bush direct mount with the respirator on oil shelves, when the inside pressure of oil shelves is too high, inside atmospheric pressure passes through the respiratory tube and upwards jack-up the piston this moment, the piston passes through the connecting rod and drives the cover rebound of breathing, breathe the cover when removing to a locating position, breathe the board and outwards open this moment, thereby carry out the pressure release through the respiratory hole, when the inside pressure recovery of oil shelves normal time, the spring drives the piston and moves down this moment, breathe the cover and push down the respiratory plate, the respiratory plate covers the respiratory hole, thereby seal oil shelves, the utility model discloses can carry out the pressure release to oil shelves automatically, thereby maintain the pressure balance in the oil shelves, prevent the oil leak.

Drawings

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

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is a schematic structural view of the breathing hole of the present invention when opened.

In the figure: 1. fixing a nut; 2. a threaded sleeve; 3. a breathing tube; 4. a breathing sleeve; 5. a piston; 6. a breathing hole; 7. a breathing plate; 8. a chute; 9. a slider; 10. a connecting rod; 11. a spring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a leak-proof respirator for a bearing bush type motor, which comprises: comprises a breathing tube 3 and a breathing sleeve 4, the breathing tube 3 is connected with the breathing sleeve 4 in a sliding way, one side of the breathing tube 3 is provided with a breathing hole 6, the inside of the breathing hole 6 is hinged with a breathing plate 7, the inside of the breathing tube 3 is connected with a piston 5 in a sliding way, the piston 5 is elastically connected with the breathing tube 3 through a spring 11, the top end of the piston 5 is fixedly connected with a connecting rod 10, the top end of the connecting rod 10 penetrates through the breathing tube 3 and is fixedly connected with the breathing sleeve 4, the outer wall of the breathing plate 7 is attached to the inner wall of the breathing sleeve 4, the breathing plate 7 is matched with the breathing hole 6, a sealing rubber gasket is embedded in the breathing plate 7, the sealing performance of the breathing plate 7 is improved, the diameter of the piston 5 is equal to the inner diameter of the breathing tube 3, the outer diameter of the breathing tube 3 is equal to the inner diameter of the breathing sleeve 4, when the pressure in the oil gear is, piston 5 drives through connecting rod 10 and breathes cover 4 rebound, breathes cover 4 when removing to a locating position, breathes board 7 and outwards opens this moment to carry out the pressure release through breathing hole 6, when the pressure of oil shelves inside resumes to normal time, spring 11 drives the piston and moves down this moment, breathes cover 4 and pushes down breathing board 7, breathes board 7 and covers breathing hole 6, thereby seals oil shelves.

Refer to fig. 2 and combine fig. 3, two spouts 8 have been seted up to the inner wall of breathing cover 4, the equal fixedly connected with slider 9 in both sides of breathing pipe 3, spout 8 and slider 9 sliding connection for it is more stable to breathe the upper and lower slip of cover 4, prescribes a limit to the stroke of breathing cover 4 simultaneously, and the bottom fixedly connected with fixation nut 1 of breathing pipe 3, fixation nut 1's bottom fixedly connected with thread bush 2, and the installation is connected with oil gear conveniently.

When specifically using, the utility model relates to a leak protection respirator of bearing bush formula motor, the utility model discloses when using, pass through 2 direct mountings of thread bush with the respirator on oil shelves, when the inside pressure of oil shelves is too high, inside atmospheric pressure passes through breathing tube 3 with piston 5 jack-up to the top this moment, piston 5 drives through connecting rod 10 and breathes cover 4 and upwards remove, breathe cover 4 when removing to a locating position, breathe board 7 outwards open this moment, thereby carry out the pressure release through breather hole 6, when the inside pressure of oil shelves resumes to normal time, spring 11 drives the piston and moves down this moment, breathe cover 4 and push down breather board 7, breather board 7 covers breather hole 6, thereby seal oil shelves, the utility model discloses can carry out the oil shelves automatically, thereby maintain the pressure balance in the oil shelves, prevent the oil leak.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a leak protection respirator of bearing bush formula motor, includes breathing pipe (3) and breathing cover (4), its characterized in that: respiratory tube (3) and breathing cover (4) sliding connection, respiratory hole (6) have been seted up to one side of respiratory tube (3), the inside articulated of respiratory hole (6) has breathing board (7), the inside sliding connection of respiratory tube (3) has piston (5), through spring (11) elastic connection between piston (5) and respiratory tube (3), the top fixedly connected with connecting rod (10) of piston (5), the top of connecting rod (10) run through respiratory tube (3) and with breathing cover (4) fixed connection.

2. The leak-proof breather of a bearing bush type motor, according to claim 1, wherein: breathe board (7) and breathing hole (6) looks adaptation, breathe the inside of board (7) and inlay sealed cushion.

3. The leak-proof breather of a bearing bush type motor, according to claim 1, wherein: the diameter of the piston (5) is equal to the inner diameter of the breathing tube (3), and the outer diameter of the breathing tube (3) is equal to the inner diameter of the breathing sleeve (4).

4. The leak-proof breather of a bearing bush type motor, according to claim 1, wherein: two chutes (8) are formed in the inner wall of the breathing sleeve (4), sliding blocks (9) are fixedly connected to the two sides of the breathing tube (3), and the chutes (8) are connected with the sliding blocks (9) in a sliding mode.

5. The leak-proof breather of a bearing bush type motor, according to claim 1, wherein: the bottom fixedly connected with fixation nut (1) of respiratory tube (3), the bottom fixedly connected with thread bush (2) of fixation nut (1).

6. The leak-proof breather of a bearing bush type motor, according to claim 1, wherein: the outer wall of the breathing plate (7) is attached to the inner wall of the breathing sleeve (4).