CN202176701U

CN202176701U - Reduction box and oil blocking cover thereof

Info

Publication number: CN202176701U
Application number: CN201120097561XU
Authority: CN
Inventors: 胡炜
Original assignee: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co Ltd
Current assignee: Ward drive (Tianjin) Limited by Share Ltd
Priority date: 2011-04-06
Filing date: 2011-04-06
Publication date: 2012-03-28
Anticipated expiration: 2021-04-06

Abstract

The utility model relates to the mechanical field, in particular to a reduction box and an oil blocking cover thereof. The reduction box comprises the oil blocking cover fixed inside a box body of the reduction box, the oil blocking cover surrounds the lower portion of a gear, a gap is arranged between the oil blocking cover and the gear, and the oil blocking cover is provided with an oil inlet channel. When the reduction box is in a work state, the gear can bring the lubricating oil in the oil blocking cover to a meshing portion to conduct lubrication in a rotating process, friction heat in the meshing portion of the gear is brought to an oil pool so that temperature of the meshing portion of the gear is lowered, the lubricating oil on the outside of the oil blocking cover can flow in the oil blocking cover continuously through an oil inlet channel so as to supplement the lubricating oil in the oil blocking cover. Simultaneously, the gear stirs the lubricating oil inside the oil blocking cover in the rotating process, namely corresponding work is done on the lubricating oil inside the oil blocking cover. Due to the fact that the lubricating oil inside the oil blocking cover is less, namely the lubricating oil stirred by the gear is less, so that the work done by the gear on the lubricating oil is less, temperature rise of the lubricating oil is less, and thermal power of the reduction box is improved.

Description

A kind of speed reducer and oil blocking cover thereof

Technical field

The utility model relates to mechanical field, more particularly, relates to a kind of speed reducer and oil blocking cover thereof.

Background technique

Speed reducer is a kind of driving mechanism that utilizes driving component transferring power such as gear.Wherein the speed reducer driving component needs good lubricating, and most speed reducer driving component all adopts oil lubrication, and mostly its lubricating system is flooding system lubrication.With the gear is the example explanation; Flooding system lubrication is in a part of floodlubrication oil with gear, and during the gear revolution, sticking lubricant oil above that is brought to the meshing zone and is lubricated; Make to form oil film between two gear meshing flank of tooth, thereby reduce the life-span that friction improves gear; Also frictional heat is brought in the oil sump simultaneously, eliminates the frictional heat that gear is produced when transferring power, and then just make that the temperature of lubricant oil raises in the oil sump; Gear has also stirred the lubricant oil in the oil sump when rotating, and promptly the lubricant oil in the gear mesh oil sump has been done certain merit, thereby makes the temperature of the lubricant oil in the oil sump further raise; Lubricant oil in the oil sump is thrown on the inwall of speed reducer casing simultaneously, plays the effect of heat radiation through inwall.

Obviously, when adopting flooding system lubrication, in the casing of speed reducer enough lubricant oil should be arranged; Just can guarantee the needs that lubricate; But the degree of depth of gear floodlubrication oil is dark more, and gear is big more to the stirring degree of lubricant oil when rotating, i.e. gear mesh lubricant oil acting is many more; And then make that the temperature rising of lubricant oil is many more, that is to say that the thermal power of speed reducer is low more.

Because the temperature of lubricant oil is higher; When the mode through the cabinet wall heat radiation is not enough to satisfy the heat radiation of speed reducer lubricant oil; The temperature of lubricant oil continues higher, must make oil body reduction and lubricant oil also be easier to oxidation, and then reduce the life-span of lubricant oil; Increase the frequency of changing oil, thereby influenced the working life of speed reducer.

Therefore, how to reduce the temperature of lubricant oil, and then the thermal power of raising speed reducer is those skilled in the art's technical issues that need to address.

The model utility content

The purpose of the utility model provides a kind of speed reducer, and this speed reducer in use can be controlled the temperature of lubricant oil effectively, and then improves thermal power.

For realizing above-mentioned purpose, the utility model provides following technological scheme:

A kind of speed reducer comprises the oil blocking cover that is fixed in the speed reducer box house, have the gap between the bottom of said oil blocking cover encirclement gear and the gear, and said oil blocking cover has oil inlet passage.

Preferably, said oil inlet passage vertically extends, and has the gap between its lower end mouth and the said speed reducer tank floor.

Preferably, the internal surface of said oil blocking cover matches with the outer surface of gear.

Preferably, the outer surface of said oil blocking cover has outward extending outside fix ear, and the internal surface of said speed reducer casing has the interior chucking lug that extends internally, and said outside fix ear and said interior chucking lug pass through bolt.

A kind of oil blocking cover of speed reducer, comprise surround the gear bottom and with gear between have the retaining oil pocket and the oil inlet passage that is communicated with said retaining oil pocket and extraneous space in gap.

Preferably, said oil inlet passage vertically extends.

Above-mentioned background is technological relatively, and the speed reducer that the utility model provides comprises the oil blocking cover that is fixed in the speed reducer box house, have the gap between the bottom of said oil blocking cover encirclement gear and the gear, and said oil blocking cover has oil inlet passage.Because oil blocking cover surrounds the bottom of gear, the lubricant oil in the speed reducer casing just flows in the oil blocking cover through oil inlet passage, thereby makes the bottom of gear immerse in the lubricant oil in the oil blocking cover; Again owing to have the gap between oil blocking cover and the gear; Therefore gear can freely rotate, and when speed reducer was in running order, gear can take the lubricant oil in the oil blocking cover to the meshing zone and be lubricated in rotation process like this; And the frictional heat of meshing zone of gears taken in the oil sump; Thereby reduce the temperature of meshing zone of gears, the outside lubricant oil of oil blocking cover constantly flows in the oil blocking cover, to replenish the lubricant oil in the oil blocking cover; Gear has stirred the inner lubricant oil of oil blocking cover in rotation process simultaneously; Promptly the lubricant oil of oil blocking cover inside has been done corresponding merit; But because the oil mass of the lubricant oil of oil blocking cover inside is less, promptly just less by the oil mass of gear stirring, thus make that the acting of gear mesh lubricant oil is just less; And then the rising of the temperature of lubricant oil is less, has so just improved the thermal power of speed reducer.

Description of drawings

The structural representation of the speed reducer that Fig. 1 is provided for the utility model embodiment;

The structural representation of the oil blocking cover that Fig. 2 is provided for the utility model embodiment;

Fig. 3 is that A among Fig. 2 is to view;

Fig. 4 is that B among Fig. 2 is to view.

Embodiment

The purpose of the utility model provides a kind of speed reducer, and this speed reducer in use can effectively be controlled the temperature of lubricant oil, and then improves thermal power.

To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, complete description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, all other embodiments that those of ordinary skills are obtained under the prerequisite of not making creative work belong to the protection domain of the utility model.

As depicted in figs. 1 and 2, the speed reducer that the utility model provided comprises the oil blocking cover 1 that is fixed in speed reducer casing 3 inside, have the gap between the bottom of oil blocking cover 1 encirclement gear 2 and the gear 2, and oil blocking cover 1 also has oil inlet passage 14.Because oil blocking cover 1 is fixed in the casing 3 of speed reducer and surrounds the bottom of gear 2, the lubricant oil in the speed reducer casing 3 just flow in the oil blocking covers 1 through oil inlet passage 14, thereby make the bottom of gear 2 immerse in the lubricant oil in the oil blocking cover 1; Again owing to have the gap between oil blocking cover 1 and the gear 2; Therefore gear 2 can freely rotate, and when speed reducer was in running order, gear 2 can take the lubricant oil in the oil blocking cover 1 to the meshing zone and be lubricated in rotation process like this; And the frictional heat of meshing zone taken in the oil sump; Thereby reduce the temperature of meshing zone, oil blocking cover 1 outside lubricant oil constantly flows in the oil blocking cover 1, to replenish the lubricant oil in the oil blocking cover 1; Gear 2 has stirred the lubricant oil of oil blocking cover 1 inside in rotation process simultaneously; Promptly oil blocking cover 1 inner lubricant oil has been done corresponding merit; But because the oil mass of the lubricant oil of oil blocking cover 1 inside is less, promptly just less by the oil mass of gear 2 stirrings, thus make that 2 pairs of lubricant oil actings of gear are just less; And then the rising of the temperature of lubricant oil is less, has so just improved the thermal power of speed reducer.

In addition, the direction that those skilled in the art usually can oil inlet passage 14 is set to vertical direction, and makes to have the gap between the bottom surface of lower end mouth and speed reducer casing 3 of oil inlet passage 14, and lubricant oil is just got into by the lower end mouth of oil inlet passage 14 like this.For the flowing velocity that guarantees the lubricant oil that oil blocking cover 1 is outside slower; The lubricant oil that can flow is more; Generally can with oil inlet passage 14 be provided with as far as possible more longer; The lubricant oil of speed reducer casing 3 bottoms just can flow in the oil blocking cover 1 like this, and then has reduced the flowing velocity of lubricant oil effectively, has further improved the thermal efficiency of speed reducer.

For the processing method of oil blocking cover 1, can adopt the method processing oil blocking cover 1 of casting, can certainly adopt the method processing oil blocking cover 1 of welding assembly unit, as long as can reach the corresponding techniques effect.Because performance demands such as 1 pair of intensity of oil blocking cover, abrasion resistance are lower; Therefore those skilled in the art can select the method processing oil blocking cover 1 of punching press assembling for use usually; Like Fig. 2, Fig. 3 and shown in Figure 4, be specially punching press front side plate 11, back side panel 16, left sideboard 13 and right sideboard 12; All has outward extending positioning convex 10 on the front side edge of left sideboard 13 and right sideboard 12 and the back side edge; The positioning hole that on front side plate 11 and back side panel 16, has perforation; The positioning convex 10 of left sideboard 13 and right sideboard 12 cooperates with the positioning hole of front side plate 11 and back side panel 16 respectively and has formed oil blocking cover 1, so just makes the processing of oil blocking cover 1 assemble simple and convenient.Certainly the lower side of while front side plate 11, back side panel 16, left sideboard 13 and right sideboard 12 has surrounded the lower end mouth 15 of oil inlet passage 14, so just can be through the size of control lower end mouth 15 and then the speed in the control lubricant oil inflow oil blocking cover 1.

On the basis of the foregoing description; Less in order to guarantee that gear 2 stirs the oil mass of lubricant oil; Those skilled in the art can make that usually the distance between oil blocking cover 1 and the gear 2 is less; The oil mass of the lubricant oil that holds in the oil blocking cover 1 like this is just less, thereby the oil mass of the lubricant oil that gear 2 stirs is just less, and then 2 pairs of lubricant oil works of gear are just less.In preferred version, those skilled in the art can match the internal surface of oil blocking cover 1 with the outer surface of gear, so just can guarantee effectively between the outer surface of internal surface and gear of oil blocking cover 1 that distance everywhere is all less.

In order to make oil blocking cover 1 easy installation and removal in the casing of speed reducer; Ordinary circumstance can be provided with outward extending outer fixing ear on the outer surface of oil blocking cover 1; The interior chucking lug that extends internally is set on the internal surface of speed reducer casing, and outside fix ear and interior chucking lug pass through bolt.

Other part of the speed reducer that is provided for above-mentioned the utility model embodiment can be with reference to existing technology, and this paper is not launching narration.Advantage and the disclosed same content of the foregoing description for the oil blocking cover of the disclosed speed reducer of the utility model embodiment see also the disclosed content of the foregoing description, also repeat no more here.

More than speed reducer and oil blocking cover thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims

1. a speed reducer is characterized in that, comprises the oil blocking cover that is fixed in the speed reducer box house, have the gap between the bottom of said oil blocking cover encirclement gear and the gear, and said oil blocking cover has oil inlet passage.

2. speed reducer as claimed in claim 1 is characterized in that said oil inlet passage vertically extends, and has the gap between its lower end mouth and the said speed reducer tank floor.

3. speed reducer as claimed in claim 2 is characterized in that, the internal surface of said oil blocking cover matches with the outer surface of gear.

4. like each described speed reducer of claim 1 to 3; It is characterized in that; The outer surface of said oil blocking cover has outward extending outside fix ear, and the internal surface of said speed reducer casing has the interior chucking lug that extends internally, and said outside fix ear and said interior chucking lug pass through bolt.

5. the oil blocking cover of a speed reducer is characterized in that, comprise surround the gear bottom and with gear between have the retaining oil pocket and the oil inlet passage that is communicated with said retaining oil pocket and extraneous space in gap.

6. the oil blocking cover of speed reducer as claimed in claim 5 is characterized in that, said oil inlet passage vertically extends.