CN219045562U

CN219045562U - Speed reducer box

Info

Publication number: CN219045562U
Application number: CN202223507840.6U
Authority: CN
Inventors: 许绪强
Original assignee: Hangzhou Dabang Reducer Co ltd
Current assignee: Hangzhou Dabang Reducer Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-19
Anticipated expiration: 2032-12-26

Abstract

The utility model provides a speed reducer box body, which comprises a box body, wherein a worm wheel mounting cavity and a worm mounting cavity are formed in the box body, and a bearing mounting groove for mounting an inner end bearing is formed in the bottom of the worm mounting cavity; a piston body is arranged in the lubricant cavity and can move along the axial direction of the lubricant cavity. The utility model can lead the inner end bearing to be well lubricated, reduce the abrasion of the inner end bearing during the operation of the inner end bearing, improve the service life of the inner end bearing, and reduce the noise of the reducer during the operation because the inner end bearing is well lubricated. The utility model is simple and convenient to operate, and can rapidly finish the lubrication operation of the inner end bearing.

Description

Speed reducer box

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a speed reducer box body.

Background

The worm gear speed reducer is a speed reducer commonly used at present, as shown in fig. 1, the existing speed reducer comprises a box body 1, a worm gear installation cavity 2 and a worm installation cavity 3 are arranged in the box body 1, a worm wheel 4 is arranged in the worm gear installation cavity 2, a worm 5 is arranged in the worm installation cavity 3, and the worm wheel 4 is meshed with the worm 5; the worm wheel 4 is driven to rotate by the rotation of the worm 5, so that the speed reduction with a large speed ratio is realized.

The worm 5 is arranged in the worm installation cavity 3 by means of two bearings, the bearing close to the opening of the worm installation cavity 3 is an outer end bearing 6, and the bearing close to the bottom of the worm installation cavity 3 is an inner end bearing 7; the two ends of the worm 5 are respectively connected to an outer end bearing 6 and an inner end bearing 7, and the rotational connection of the worm 5 is realized through the outer end bearing 6 and the inner end bearing 7. Because the inner end bearing 7 is installed at the bottommost position of the worm installation cavity 3, the installation position is hidden, so that the lubricant is difficult to be added to the inner end bearing 7 regularly, the inner end bearing 7 cannot be lubricated effectively for a long time, the abrasion of the inner end bearing 7 is aggravated, the service life of the inner end bearing 7 is reduced, and a certain noise is easily generated when the speed reducer runs due to insufficient lubrication of the inner end bearing 7.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a speed reducer box body which can effectively solve the problems.

The utility model aims at realizing the following technical scheme: the speed reducer box comprises a box body, wherein a worm wheel mounting cavity and a worm mounting cavity are formed in the box body, a bearing mounting groove for mounting an inner end bearing is formed in the bottom of the worm mounting cavity, a lubricant cavity is formed in the box body, the lubricant cavity is located at one side of the bearing mounting groove, one end of the lubricant cavity is open, and the lubricant cavity is connected with the bearing mounting groove through a connecting through hole; a piston body is arranged in the lubricant cavity and can move along the axial direction of the lubricant cavity.

In the utility model, a lubricant cavity is arranged on a box body, when the lubricant is supplemented to the inner end bearing, the piston body is pulled out of the lubricant cavity, then pasty lubricating grease or other lubricants are added into the lubricant cavity, and after the lubricant is added, the piston body is filled into the lubricant cavity, and part of the lubricating grease or the lubricant in the lubricant cavity is extruded into a bearing mounting groove by pushing the piston body, so that the inner end bearing in the bearing mounting groove is lubricated; after the lubricant is added into the lubricant cavity, the lubricant in the lubricant cavity can be lubricated for a plurality of times, and when the lubricant in the lubricant cavity is used up, the lubricant is only needed to be added again. The utility model can lead the inner end bearing to be well lubricated, reduce the abrasion of the inner end bearing during the operation of the inner end bearing, improve the service life of the inner end bearing, and reduce the noise of the reducer during the operation because the inner end bearing is well lubricated. The utility model is simple and convenient to operate, and can rapidly finish the lubrication operation of the inner end bearing.

Preferably, the connecting through hole corresponds to an annular gap between the inner and outer rings of the inner end bearing. The connecting through hole corresponds to the annular gap between the inner ring and the outer ring of the inner end bearing, so that when the lubricant is supplemented to the inner end bearing, the lubricant can be accurately injected into the annular gap between the inner ring and the outer ring of the inner end bearing, thereby lubricating the rolling part of the inner end bearing and improving the lubrication effect.

Preferably, the piston body is made of rubber.

Preferably, a push rod is arranged on one side of the piston body facing the open end of the lubricant cavity.

Preferably, the case body is made of an aluminum alloy.

Preferably, the lubricant chamber is a cylindrical chamber. Drilling is performed on the box body through drilling equipment, so that a lubricant cavity is formed on the box body.

The beneficial effects of the utility model are as follows: the utility model can lead the inner end bearing to be well lubricated, reduce the abrasion of the inner end bearing during the operation of the inner end bearing, improve the service life of the inner end bearing, and reduce the noise of the reducer during the operation because the inner end bearing is well lubricated. The utility model is simple and convenient to operate, and can rapidly finish the lubrication operation of the inner end bearing.

Drawings

Fig. 1 is a schematic structural diagram of a conventional speed reducer.

Fig. 2 is a schematic structural view of the present utility model.

FIG. 3 is a schematic view of the present utility model with an inner end bearing.

In the figure: 1. the box body, 2, worm wheel installation cavity, 3, worm installation cavity, 4, worm wheel, 5, worm, 6, outer end bearing, 7, inner end bearing, 8, bearing mounting groove, 9, lubricant cavity, 10, connecting through hole, 12, piston body, 13, push rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1 to 3, a speed reducer case includes a case body 1, the case body 1 being made of an aluminum alloy. The box body 1 is provided with a worm wheel mounting cavity 2 and a worm mounting cavity 3, the bottom of the worm mounting cavity 3 is provided with a bearing mounting groove 8 for mounting an inner end bearing 7, and the inner end bearing 7 is mounted in the bearing mounting groove 8 in a press-fit manner.

The box body 1 is provided with a lubricant cavity 9, and the lubricant cavity 9 is a cylindrical cavity. The lubricant cavity 9 is positioned at one side of the bearing mounting groove 8, and one end of the lubricant cavity 9 is open; in actual machining, drilling is performed on the case body 1 by a drilling apparatus, whereby the lubricant chamber 9 is machined on the case body. The lubricant chamber 9 is connected with the bearing mounting groove 8 through a connecting through hole 10. The connecting through holes 10 correspond to the annular gap between the inner and outer rings of the inner end bearing 7. A piston body 12 is provided in the lubricant chamber 9, the piston body 12 being movable in the axial direction of the lubricant chamber 9. The piston body 12 is made of rubber. A push rod 13 is arranged on the piston body 12 on the side facing the open end of the lubricant chamber 9.

In the utility model, a lubricant cavity is arranged on a box body, when the lubricant is supplemented to the inner end bearing, the piston body is pulled out of the lubricant cavity, then pasty lubricating grease or other lubricants are added into the lubricant cavity, and after the lubricant is added, the piston body is filled into the lubricant cavity, and part of the lubricating grease or the lubricant in the lubricant cavity is extruded into a bearing mounting groove by pushing the piston body, so that the inner end bearing in the bearing mounting groove is lubricated; the connecting through hole corresponds to the annular gap between the inner ring and the outer ring of the inner end bearing, so that when the lubricant is supplemented to the inner end bearing, the lubricant can be accurately injected into the annular gap between the inner ring and the outer ring of the inner end bearing, thereby lubricating the rolling part of the inner end bearing and improving the lubrication effect. After the lubricant is added into the lubricant cavity, the lubricant in the lubricant cavity can be lubricated for a plurality of times, and when the lubricant in the lubricant cavity is used up, the lubricant is only needed to be added again. The utility model can lead the inner end bearing to be well lubricated, reduce the abrasion of the inner end bearing during the operation of the inner end bearing, improve the service life of the inner end bearing, and reduce the noise of the reducer during the operation because the inner end bearing is well lubricated. The utility model is simple and convenient to operate, and can rapidly finish the lubrication operation of the inner end bearing.

The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.

Claims

1. The speed reducer box body comprises a box body, wherein a worm wheel mounting cavity and a worm mounting cavity are formed in the box body, and a bearing mounting groove for mounting an inner end bearing is formed in the bottom of the worm mounting cavity; a piston body is arranged in the lubricant cavity and can move along the axial direction of the lubricant cavity.

2. A reducer casing according to claim 1, wherein the connecting through-hole corresponds to an annular gap between inner and outer rings of the inner end bearing.

3. A reducer casing according to claim 1 or 2, wherein the piston body is made of rubber.

4. A reducer casing according to claim 1 or 2, wherein the piston body is provided with a push rod on the side facing the open end of the lubricant chamber.

5. A reducer casing according to claim 1 or 2, wherein the casing body is made of an aluminium alloy.

6. A reducer casing according to claim 1 or claim 2, wherein the lubricant chamber is a cylindrical chamber.