CN214248222U

CN214248222U - Waterproof gearbox casing

Info

Publication number: CN214248222U
Application number: CN202120052819.8U
Authority: CN
Inventors: 李铭
Original assignee: Xiangshan Yinuo Metal Products Co ltd
Current assignee: Xiangshan Yinuo Metal Products Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-09-21
Anticipated expiration: 2031-01-08

Abstract

The application discloses a waterproof gear box body, which comprises a gear box body, wherein a convex ring is integrally protruded outwards from the gear box body, an output shaft is convenient to install on the convex ring, a sealing device is in threaded connection with the outer surface of the convex ring, the sealing device can perform sealing operation on a gap between the output shaft installed in the convex ring and the convex ring, the sealing performance between the output shaft and the convex ring is enhanced, a groove is formed in the inner surface of the convex ring, the groove is integrally formed by outwards recessing the inner surface of the convex ring, sealing oil can be contained in the groove, the sealing oil in the groove can perform oil sealing on the gap between the convex ring and the output shaft, double sealing between the convex ring and the output shaft can be realized by containing the sealing oil in the sealing device and the groove, the sealing strength between the convex ring and the output shaft is improved, water vapor in the air is prevented from permeating from the gap, waterproof operation is realized, and the protection effect, the service life of the device is prolonged.

Description

Waterproof gearbox casing

Technical Field

The application relates to the technical field of transmission equipment, in particular to a waterproof gearbox body.

Background

The gear box is widely applied to a wind generating set, is often used in a wind generating set and is an important mechanical component, and the gear box mainly has the function of transmitting power generated by a wind wheel under the action of wind power to a generator and enabling the generator to obtain corresponding rotating speed. The speed of the wind wheel is usually very low, and the speed of the wind wheel is far less than the speed required by the generator to generate electricity, and the speed is increased by the speed increasing action of a gear pair of the gearbox, so the gearbox is also called as a speed increasing box.

However, the output shaft of the prior art gearboxes typically extends directly out of the gearbox through a hole in the gearbox. This results in the junction of gear box and output shaft easily into water for water easily gets into the gear box inside, influences its normal use.

Disclosure of Invention

In order to overcome prior art's not enough, an aim at of this application provides a waterproof gearbox body, adopts packing sealing oil in sealing device and the recess to carry out the dual seal operation to the junction of output shaft and gear box, can improve its sealed effect effectively, realizes carrying out the guard action to spare part in the gear box.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a waterproof gearbox body, includes the gearbox body, the gearbox body outwards protrusion has the bulge loop integratively, the bulge loop is convenient for install the output shaft, the surface threaded connection of bulge loop has sealing device, sealing device can to install in the operation of sealing is carried out to the output shaft in the bulge loop, the internal surface of bulge loop is equipped with the recess, the recess is followed integratively the bulge loop internal surface is outside sunken to form, the recess can hold sealing oil.

Furthermore, an oil inlet is formed in the convex ring and is communicated with one end of the groove, sealing oil can enter the groove from the oil inlet, and a sealing cover is connected to the oil inlet in a threaded mode.

Further, the grooves are distributed on the inner surface of the convex ring in a threaded manner.

Further, sealing device includes first sealing ring, first rotating ring and a plurality of sealing member, first sealing ring threaded connection in the surface of bulge loop, first rotating ring threaded connection in the surface of first rotating ring, be equipped with on the first sealing ring and hold the chamber, it is a plurality of the sealing member be ring distribution in hold the intracavity.

Furthermore, the sealing element comprises a sealing gasket, a connecting rod and a spring, one end of the connecting rod is connected with the sealing gasket, the other end of the connecting rod extends out of the accommodating cavity, the spring is sleeved on the outer surface of the connecting rod, one end of the spring is fixedly connected to the sealing gasket, and the other end of the spring is fixedly connected to the first sealing ring.

Furthermore, a plurality of bumps are arranged on the first rotating ring, the bumps are circumferentially distributed on the first rotating ring, and the first rotating ring is rotated, so that the bumps can push the connecting rod, and the connecting rod can drive the sealing gasket to move towards the direction of the circle center.

Furthermore, a first inclined plane is arranged on the bump, a second inclined plane is arranged on the connecting rod, and the first inclined plane faces the second inclined plane.

Further, the sealing gasket is made of rubber.

Compared with the prior art, the beneficial effect of this application lies in:

(1) it is equipped with the recess, can fill sealing oil in the recess, can carry out the oil blanket to the gap of output shaft and bulge loop, can completely cut off gear box and external world effectively, avoids vapor dust etc. to get into in the gear box to carry out the guard action to its inside spare part, prolong its life.

(2) It is equipped with sealing device, installs in the bulge loop surface through the screw thread, can be the quick installation and the change that realize its self, and can realize wrapping up seal gasket firmly in the surface of output shaft through first rotating ring, and the oil blanket in the cooperation recess can realize carrying out the dual seal operation to it to great reinforcing the leakproofness of whole device, realize carrying out water proof protection to the gear box effectively.

(3) It is equipped with the oil inlet, can in time supply the sealing oil in the recess for the oil blanket is effectual, strengthens its leakproofness.

Drawings

Fig. 1 is a perspective view of a waterproof gear housing in the present application.

Fig. 2 is a top view of the watertight gearbox housing of the present application.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2 of the present application.

Fig. 4 is an enlarged schematic view of the present application at B in fig. 3.

Fig. 5 is an enlarged cross-sectional view taken along line C-C of fig. 2 of the present application.

FIG. 6 is a schematic view of the sealing gasket of the present application in an unsealed condition.

In the figure: 1. a gear housing; 10. a gear box body; 20. a convex ring; 21. a groove; 22. an oil inlet; 30. a sealing device; 31. a first seal ring; 311. an accommodating chamber; 32. a first rotating ring; 321. a bump; 322. a first inclined surface; 33. a seal member; 331. sealing gaskets; 332. a connecting rod; 333. a spring; 334. a second inclined surface; 40. and an output shaft.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

1-6, the waterproof gear box body 1 comprises a gear box body 10, wherein the gear box body 10 is integrally protruded with a convex ring 20, and the convex ring 20 and the gear box body 10 are integrally formed, so that no gap exists between the convex ring 20 and the gear box body 10, the sealing performance is improved, and rainwater is prevented from permeating; the convex ring 20 is convenient for installing the output shaft 40, the gearbox body 10 is provided with a box cover and an installation cavity, the box cover can be installed on the gearbox body 10 in an opening and closing manner, a plurality of gears are placed in the installation cavity, people can place the gears in the installation cavity or take the gears out of the installation cavity by opening the box cover, the plurality of gears are meshed with each other to realize the change of the rotating speed, the output shaft 40 of the gear can extend out of the gearbox body 10 through the convex ring 20 and is connected with other workpieces, the outer surface of the convex ring 20 is in threaded connection with a sealing device 30, the sealing device 30 can carry out sealing operation on a gap between the output shaft 40 installed in the convex ring 20 and the convex ring 20 to enhance the sealing performance between the output shaft 40 and the convex ring 20, the inner surface of the convex ring 20 is provided with a groove 21, the groove 21 is integrally formed by outwards recessing from the inner surface of the convex ring 20, the groove 21 can contain sealing oil, and the sealing oil, hold sealed oil through sealing device 30 and recess 21 in and can realize carrying out double seal between bulge loop 20 and the output shaft 40, improve sealed intensity between the two from this, avoid the vapor in the air to permeate from the space to realize waterproof operation, reach and carry out the guard action to the inside part of gear box body 10, prolong its life.

Wherein, as shown in fig. 4, be equipped with oil inlet 22 on the bulge loop 20, oil inlet 22 communicates the one end of recess 21, sealed oil can get into recess 21 from oil inlet 22, threaded connection has sealed lid on the oil inlet 22, thereby can supplement sealed oil through oil inlet 22 in recess 21 at any time, improve its sealed effect, when needs are to supplementing sealed oil in the recess 21, only need open sealed lid, sealed oil can flow into in the recess 21 from oil inlet 22, thereby can realize adding sealed oil operation at any time, improve the effect of oil blanket, strengthen the leakproofness of whole device.

As shown in fig. 4, the groove 21 is distributed on the inner surface of the convex ring 20 in a threaded manner, and the threaded structure can improve the sealing effect and facilitate the sealing oil of the oil inlet 22 to enter the groove 21, so as to form an annular oil seal between the convex ring 20 and the output shaft 40, thereby effectively sealing a gap between the convex ring and the output shaft, and greatly improving the waterproof performance between the convex ring and the output shaft.

As shown in fig. 4, the sealing device 30 includes a first sealing ring 31, a first rotating ring 32, and a plurality of sealing members 33, the first sealing ring 31 is screwed to the outer surface of the protruding ring 20, the first rotating ring 32 is screwed to the outer surface of the first rotating ring 32, a receiving cavity 311 is provided on the first sealing ring 31, the plurality of sealing members 33 are annularly distributed in the receiving cavity 311, the first rotating ring 32 can carry the plurality of sealing members 33 to be mounted on the protruding ring 20, the first rotating ring 32 can be rotatably mounted on the first sealing ring 31, the plurality of sealing members 33 can be abutted against the output shaft 40 according to the rotation of the first rotating ring 32, and the plurality of sealing members 33 can surround a circle to surround the outer surface of the output shaft 40, so as to seal the output shaft 40, by providing the plurality of movable sealing members 33, not only the sealing operation can be achieved, but also the first rotating ring 32 can be rotated reversely when the output shaft 40 is mounted, the plurality of seals 33 are spaced away from the output shaft 40 so that the seals 33 do not interfere with the installation process of the output shaft 40.

As shown in fig. 5 and 6, the sealing member 33 includes a sealing gasket 331, a connecting rod 332, and a spring 333, one end of the connecting rod 332 is connected to the sealing gasket 331, the other end of the connecting rod 332 extends out of the accommodating cavity 311, the spring 333 is sleeved on the outer surface of the connecting rod 332, one end of the spring 333 is fixedly connected to the sealing gasket 331, the other end of the spring 333 is fixedly connected to the first sealing ring 31, and the sealing gasket 331 is arc-shaped, so that when the sealing is performed, the sealing operation can be performed by wrapping the outer surface of the output shaft 40 with a plurality of arc-shaped sealing gaskets 331. Under the rotation of the first rotating ring 32, the first rotating ring 32 can control the sealing gasket 331 to move up and down in the radial direction through the connecting rod 332, when the first rotating ring 32 rotates counterclockwise, the first rotating ring 32 can push the first connecting rod 332 to move down, so that the sealing gaskets 331 can be wrapped on the outer surface of the output shaft 40, thereby realizing the sealing operation of the output shaft 40, when the output shaft 40 needs to be disassembled, only the first rotating ring 32 needs to rotate clockwise, the first rotating ring 32 can lose the abutting effect on the connecting rod 332, so that under the elastic force of the spring 333, the sealing gasket 331 and the connecting rod 332 can move up, thereby the sealing gasket 331 can be far away from the output shaft 40, thereby facilitating the disassembly of the output shaft 40, and by arranging the sealing gasket 331 capable of moving up and down, not only can effectively realize good sealing operation, the installation and the replacement of the output shaft 40 are not influenced, and meanwhile, the output shaft 40 with different diameters can be well sealed, so that the practicability is improved.

As shown in fig. 5, a plurality of protrusions 321 are disposed on the first rotating ring 32, the plurality of protrusions 321 are circumferentially distributed on the first rotating ring 32, the first rotating ring 32 is rotated to make the protrusions 321 abut against the connecting rod 332, the connecting rod 332 can push the sealing gasket 331 to move toward the center of the circle, and at this time, the plurality of sealing gaskets 331 can wrap the outer surface of the output shaft 40, thereby performing a sealing operation on the output shaft.

Wherein, as shown in fig. 5 and 6, be equipped with first inclined plane 322 on the lug 321, be equipped with second inclined plane 334 on the connecting rod 332, first inclined plane 322 is towards second inclined plane 334, when first rotating ring 32 anticlockwise rotates, first inclined plane 322 can butt in second inclined plane 334, along with the rotation of first rotating ring 32, lug 321 can act on second inclined plane 334 through first inclined plane 322, make connecting rod 332 downstream, a plurality of seal gaskets 331 can wrap up in the surface of output shaft 40 from this, the realization seals output shaft 40, avoid the infiltration of dust rainwater, thereby the realization is to its waterproof protection.

Wherein, seal gasket 331 is the rubber material, and it has good sealed, shock attenuation, wear-resisting, anticorrosive performance, and its self has elasticity, can carry out good packing to the gap, realizes sealed operation from this.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a waterproof gearbox casing which characterized in that: the gearbox comprises a gearbox body, the gearbox body outwards protrudes integrally to form a convex ring, the convex ring is convenient for installation of an output shaft, the outer surface of the convex ring is in threaded connection with a sealing device, the sealing device can seal the output shaft installed in the convex ring, a groove is formed in the inner surface of the convex ring, the groove integrally forms an outward concave shape from the inner surface of the convex ring, and sealing oil can be contained in the groove.

2. The waterproof gear case of claim 1, wherein: sealing device includes first sealing ring, first rotating ring and a plurality of sealing member, first sealing ring threaded connection in the surface of bulge loop, first rotating ring threaded connection in the surface of first rotating ring, be equipped with on the first sealing ring and hold the chamber, it is a plurality of the sealing member be ring distribution in hold the intracavity.

3. The waterproof gear case of claim 2, wherein: the sealing element comprises a sealing gasket, a connecting rod and a spring, one end of the connecting rod is connected with the sealing gasket, the other end of the connecting rod extends out of the accommodating cavity, the spring is sleeved on the outer surface of the connecting rod, one end of the spring is fixedly connected with the sealing gasket, and the other end of the spring is fixedly connected with the first sealing ring.

4. The waterproof gear case of claim 3, wherein: the first rotating ring is provided with a plurality of lugs which are circumferentially distributed on the first rotating ring, and the first rotating ring is rotated, so that the lugs can push the connecting rod, and the connecting rod can drive the sealing gasket to move towards the direction of the circle center.

5. The waterproof gear case of claim 4, wherein: the lug is provided with a first inclined plane, the connecting rod is provided with a second inclined plane, and the first inclined plane faces the second inclined plane.

6. The waterproof gear case according to any one of claims 1 to 5, wherein: the convex ring is provided with an oil inlet, the oil inlet is communicated with one end of the groove, sealing oil can enter the groove from the oil inlet, and the oil inlet is in threaded connection with a sealing cover.

7. The waterproof gear case of claim 6, wherein: the grooves are distributed on the inner surface of the convex ring in a threaded manner.

8. The waterproof gear case of claim 3, wherein: the sealing gasket is made of rubber.