CN215206867U

CN215206867U - Lubricating grease lubricated electric roller

Info

Publication number: CN215206867U
Application number: CN202120071459.6U
Authority: CN
Inventors: 仝桐; 翟文波; 沈泓; 施凡; 施群峰
Original assignee: Huzhou Motorized Drum Co ltd
Current assignee: Huzhou Motorized Drum Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-12-17
Anticipated expiration: 2031-01-12

Abstract

The electric roller lubricated by lubricating grease comprises a roller body and a supporting shaft, wherein end covers are fixed at two ends of the roller body, end cover holes are formed in the end covers, and supporting bearings arranged on the supporting shaft are arranged in the end cover holes. The utility model discloses, serve through the bearing location of outer gland and interior gland and set up the cavity and fill lubricating grease, utilize lubricating grease to last, lubricate effectively the bearing in the electric cylinder both ends end cover, reduce the bearing temperature, prolong bearing and whole electric cylinder's life.

Description

Lubricating grease lubricated electric roller

Technical Field

The utility model relates to an electric drum especially relates to a lubricated electric drum of lubricating grease.

Background

The electric roller is a novel driving device which places the motor and the speed reducer in the roller body together, and has the characteristics of compact structure, high transmission efficiency, low noise, long service life, small use space, convenient maintenance, safe and reliable operation, good sealing performance and the like, the use place is wider and wider, and the electric roller can work under various severe environmental conditions such as humidity, muddy, much dust and the like.

The timely targeted heat dissipation treatment of the electric roller is an important measure for ensuring the service life of the electric roller and maintaining the working efficiency. The patent with application number CN201910985357.2 discloses half directly drive planet motorized pulley, wherein, set up support bearing in motorized pulley both ends end cover hole, support bearing is used for installing the supporting axle, and support bearing department heat dispersion is poor, and support bearing produces a large amount of heats easily at long-term continuous rotation in-process, and support bearing fragile, in addition, the inside heat that produces by the reduction gear operation of motorized pulley also is difficult to give off.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lubricated motorized pulley of lubricating grease to prior art not enough.

The electric roller lubricated by lubricating grease comprises a roller body and a supporting shaft, wherein end covers are fixed at two ends of the roller body, end cover holes are formed in the end covers, and supporting bearings arranged on the supporting shaft are arranged in the end cover holes.

In the technical scheme, the bearing pressing ends of the outer pressing cover and the inner pressing cover are provided with the cavities and filled with lubricating grease, the bearings in the end covers at the two ends of the electric roller are continuously and effectively lubricated by the lubricating grease, the temperature of the bearings is reduced, and the service lives of the bearings and the whole electric roller are prolonged.

Preferably, a built-in motor and a speed reducer connected with the built-in motor are arranged in the roller body, and lubricating oil is filled in the roller body. On one hand, the lubricating oil plays a role in lubricating the speed reducer at any time and reduces the generation of heat, and on the other hand, the lubricating oil carries the heat in the roller body out after being stirred.

Preferably, the outer gland is provided with a nozzle tip for supplementing lubricating grease in the cavity, and the nozzle tip is communicated with the cavity. Through the glib talker, can in time supply the lubricating grease in the cavity, guarantee to the effective lubrication heat dissipation of support bearing.

Preferably, the outer gland is provided with a first oil seal and a dust ring, and the first oil seal is arranged on the supporting shaft through a first oil seal bush. And the lubricating grease is effectively limited in the cavity through the cooperation of the first oil seal and the first oil seal bushing.

Preferably, the inner pressure cover is provided with a second oil seal, and the second oil seal is mounted on the supporting shaft through a second oil seal bushing. And the lubricating grease is effectively limited in the cavity through the cooperation of the oil seal II and the oil seal bushing II.

Preferably, the supporting shaft is provided with a sealing abutting surface for abutting against the two end parts of the oil seal bushing in a sealing manner. The arrangement prevents the lubricating oil from flowing out from the gap between the second seal bush and the supporting shaft.

Preferably, a pressure relief groove is formed between the second oil seal bushing and the speed reducer and between the second oil seal bushing and the supporting shaft. This setting can be so that lubricating oil flows at pressure release slot department under the stirring state and become slow or even not flow, effectively reduces oil blanket lip pressure, improves oil blanket sealing capacity and life.

To sum up, the utility model discloses following beneficial effect has:

the bearing pressing ends of the outer gland and the inner gland are provided with cavities and filled with lubricating grease, so that the bearings in the end covers at the two ends of the electric roller are continuously and effectively lubricated by the lubricating grease, the temperature of the bearings is reduced, and the service lives of the bearings and the whole electric roller are prolonged; meanwhile, lubricating oil is filled in the roller body, and the lubricating oil is utilized for heat dissipation, so that the service life of the electric roller is further prolonged; by designing the pressure relief groove, the pressure of the lip of the oil seal is effectively reduced, the sealing capability of the oil seal is improved, and the service life of the oil seal is prolonged; through the sealing abutting surface, the lubricating oil is prevented from flowing out from the gap between the second sealing bush and the supporting shaft; through the glib talker, can in time supply the lubricating grease in the cavity, guarantee to the effective lubrication heat dissipation of support bearing.

Drawings

FIG. 1 is a schematic diagram of a motorized pulley;

FIG. 2 is a partial schematic structural view of one side end of the motorized pulley;

fig. 3 is a partial schematic structural view of the other side end of the motorized pulley.

Detailed Description

The present invention will be further explained by the following embodiments with reference to the attached drawings.

Example (b): as shown in fig. 1-3, a grease lubricated motorized pulley comprises a pulley body 1 and a supporting shaft 2, wherein end caps 3 are fixed at two ends of the pulley body 1, end cap holes 31 are formed in the end caps 3, supporting bearings 32 mounted on the supporting shaft 2 are arranged in the end cap holes 31, an outer gland 4 and an inner gland 5 which are in sealing contact with the supporting bearings 32 are respectively fixed at two sides of the end caps 3, cavities 6 filled with grease are respectively arranged at bearing pressing ends of the outer gland 4 and the inner gland 5, and when the motorized pulley is in operation, the grease continuously and effectively lubricates the supporting bearings 32 in the end caps at two ends of the motorized pulley, so that the bearing temperature is reduced, and the service life of the bearings and the whole motorized pulley is prolonged. After the electric roller operates for a long time, the lubricating grease in the cavity 6 can be gradually reduced, in order to timely supplement the lubricating grease in the cavity 6 and ensure effective lubrication and heat dissipation of the supporting bearing 32, the outer gland 4 is also provided with an oil nozzle for supplementing the lubricating grease in the cavity 6, and the oil nozzle is communicated with the cavity 6.

In this embodiment, the drum body 1 is provided with the built-in motor 8 and the speed reducer 7 connected with the built-in motor 8, and the drum body 1 is filled with lubricating oil, so that on one hand, the lubricating oil can lubricate the speed reducer at any time and reduce heat generation, and on the other hand, the lubricating oil can take out heat in the drum body after being stirred.

In this embodiment, install oil blanket one, dust ring on the outer gland 4, oil blanket one is installed through oil blanket bush 21 on the supporting shaft 2, install oil blanket two on the inner gland 5, oil blanket two is installed through oil blanket bush 22 on the supporting shaft 2. The lubricating grease is effectively confined in the cavity 6 by the cooperation of the first oil seal and the first oil seal bush 21 and the cooperation of the second oil seal and the second oil seal bush 22.

In this embodiment, since there is a risk that the lubricant will flow out from the gap between the second oil seal bushing 22 and the support shaft 2 under the stirring condition, in order to overcome this problem, the support shaft 2 is provided with a seal abutting surface 23 for sealing and abutting against the end of the second oil seal bushing 22, and in order to ensure a better sealing effect, a seal ring can be additionally added to the seal abutting surface 23.

Furthermore, a pressure relief groove 24 is formed between the second oil seal bushing 22 and the speed reducer 7 and the support shaft 2, and this arrangement can make the flow of the lubricating oil in the pressure relief groove 24 slow or even no flow under the stirring state, effectively reduce the pressure of the oil seal lip, improve the sealing capability of the oil seal and prolong the service life, specifically, the pressure relief groove 24 can be formed by using a blocking part or a baffle, in fig. 3, the speed reducer 7 is provided with a blocking part 700, and the pressure relief groove 24 is a concave groove which is lower than the blocking part 700 in the radial direction. In addition, referring to fig. 2, an axial baffle 200 is arranged on the supporting shaft 2, and the axial baffle 200 plays a role of blocking lubricating oil, and also plays a role of reducing the pressure of an oil seal lip at a corresponding position, improving the sealing capability of the oil seal and prolonging the service life of the oil seal.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a lubricated electric drum of lubricating grease, includes the drum body (1), supporting axle (2), drum body (1) both ends are fixed with end cover (3), be provided with end cover hole (31) on end cover (3), be provided with in end cover hole (31) and install supporting bearing (32) on supporting axle (2), its characterized in that, the both sides of end cover (3) are fixed with respectively with supporting bearing (32) sealing contact's outer gland (4) and interior gland (5), be provided with respectively on the bearing pressure end of outer gland (4) and interior gland (5) and pack cavity (6) that have the lubricating grease.

2. A grease lubricated motorized pulley according to claim 1, characterized in that a built-in motor (8) and a speed reducer (7) connected with the built-in motor (8) are arranged in the pulley body (1), and the pulley body (1) is filled with lubricating oil.

3. A grease lubricated electric roller according to claim 1, characterized in that the outer gland (4) is provided with a nipple for supplementing the grease in the cavity (6), said nipple communicating with said cavity (6).

4. A grease lubricated motorized pulley according to claim 1, characterized in that said outer gland (4) is fitted with a grease seal, a dust ring, said grease seal being mounted on said support shaft (2) by means of a grease seal bushing (21).

5. A grease lubricated motorized pulley according to claim 2, characterised in that the inner gland (5) has a second oil seal mounted thereon, the second oil seal being mounted on the support shaft (2) by means of a second oil seal bushing (22).

6. A grease lubricated motorized pulley according to claim 5, characterized in that the bearing shaft (2) is provided with a sealing abutment surface (23) for sealing abutment with the end of the second oil-sealed bushing (22).

7. A grease lubricated motorized pulley according to claim 5, characterized in that a pressure relief groove (24) is formed between the second oil seal bushing (22) and the speed reducer (7) and the supporting shaft (2).