CN205841032U - Multi-functional housing covef for timing gear - Google Patents

Abstract

This utility model relates to engine art, particularly relates to a kind of housing covef for timing gear.Multi-functional housing covef for timing gear, including body, arranges limiting platform at the seal mounting hole of described body, described limiting platform is circular and is provided with some oil return breach.Oil sealing is positioned by this utility model by limiting platform, increases bulge and reinforcement simultaneously, can prevent leakage of oil and reduce noise, being substantially reduced cost.

Description

Multi-functional housing covef for timing gear

Technical field

This utility model relates to engine art, particularly relates to a kind of housing covef for timing gear.

Background technology

Electromotor three leaks (leakage of oil, leak, leak gas) and engine noise problem affects the complete machine quality of electromotor always Promote, especially crankshaft front oil seal-mounting leakage of oil, timing system drive noise, along with complete machine quality requirements is improved constantly by compatriots, The corresponding design reducing leakage of oil and reduction noise is also constantly occurring.

The method preventing crankshaft front oil seal-mounting leakage of oil at present has multiple improvement oil enveloping structure.As: improve oil sealing assembly method.? Noise reduction aspect reaches by controlling the technological means such as gear backlash, the change kind of drive.Belt transmission specifically can be used to replace tooth The modes such as wheel transmission.

But, in structure, the simple oil enveloping structure that changes a more most step can not reduce leakage of oil.Because oil seal pressing is at oil sealing In hole, oil sealing likely tilts when installing, and causes poorly sealed, causes leakage of oil.The change of timing transmission mode, engine body Amount of change is relatively big, and follow-up work is loaded down with trivial details, relatively costly.

Prior art can not quickly effectively low cost, prevent leakage of oil and reduce noise.

Utility model content

For overcoming above-mentioned technical problem, this utility model provides a kind of multi-functional housing covef for timing gear, passes through limiting platform Oil sealing is positioned, increases bulge and reinforcement simultaneously, leakage of oil can be prevented and reduce noise, being substantially reduced cost.

This utility model provides a kind of multi-functional housing covef for timing gear, including body, the seal mounting hole of described body Place arranges limiting platform, and described limiting platform is circular and is provided with some oil return breach.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that described oil return breach uniform setting on limiting platform.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that described body is integrated.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that be provided with some bulges on described body, described bulge is Polymorphic structure.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that be provided with some reinforcements on described body.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that be provided with sound insulating pad on described body outer surface.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that outside described sound insulating pad, noise enclosure is set.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that be provided with some for fixing sound insulation lid on described body The boss of cover, on boss, match with bolt in tapped hole.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that described boss is 10.

Above-mentioned multi-functional housing covef for timing gear, it is preferred that be provided with for buckle sound insulation on described bolt lateral edges The endless groove of housing.

This utility model has following technical effect that

1, by changing the installation form of described housing covef for timing gear seal mounting hole, increase the design of positive stop lug boss, protect Card oil sealing will not install inclination, it is ensured that oil sealing oil return effect, positive stop lug boss simultaneously works as the effect of oil baffle disc, by major part machine oil Gear, beyond oil sealing, reduces oil sealing return pressure, and positive stop lug boss leaves oil return breach simultaneously, it is ensured that oil sealing oil return can smooth and easy return to Oil sump.

2, this utility model structure optimization, adds bulge and reinforcement, it is ensured that described housing for timing gear is stamped enough Intensity and self will not occur and other parts of body produce resonance, timing noise is directly played insulating effect.

3, add sound insulating pad installation base on this utility model, be used for covering sound insulating pad is installed.Boss to be reasonably distributed, it is ensured that Sound-proof material can be fitted on housing for timing gear lid completely.Boss and sound insulating pad housing also to have rational gap to ensure Sound-proof material There are enough compression heights can fully absorb the noise that timing system transmits.

Accompanying drawing explanation

Fig. 1 is the attachment structure schematic diagram of housing for timing gear and multi-functional housing covef for timing gear；

Fig. 2 is the structural representation of housing for timing gear；

Fig. 3 is the structural representation arranging limiting platform at seal mounting hole；

Fig. 4 is the structural representation arranging limiting platform at seal mounting hole；

Fig. 5 is the structure chart of multi-functional housing covef for timing gear；

Fig. 6 is the structure chart that multi-functional housing for timing gear covers reinforcement；

Fig. 7 is the structural representation of existing seal mounting hole；

Fig. 8 is the structural representation of boss, sound insulating pad, noise enclosure.

Description of reference numerals:

1-limiting platform 2-oil return breach 3-housing for timing gear 4-multi-functional housing covef for timing gear 5-timing system 6- Bulge 7-reinforcement 8-boss 9-sound insulating pad 10-noise enclosure.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment examining accompanying drawing description is exemplary, is only used for explaining this utility model, and can not be construed to of the present utility model Limit.

Figure 2 illustrates the timing system in housing for timing gear.Figure 1 illustrates, multi-functional housing for timing gear cover buckle It is combined on housing for timing gear, timing system is enclosed in timing gears indoor.

In Fig. 3, Fig. 4, the utility model discloses multi-functional housing covef for timing gear, including body.The oil of described body Arranging limiting platform 1 at seal installation hole, described limiting platform 1 is in circular and be provided with some oil return breach 2.Described time Oil breach 2 uniform setting on limiting platform 1.On multi-functional housing covef for timing gear 4, seal mounting hole increases limiting platform 1 simultaneously Leaving oil return breach 2, play the role of positioning oil sealing, limiting platform 1 plays oil baffle disc effect simultaneously, the machine oil that can major part be splashed Gear is outside.Limiting platform 1 also leaves oil return breach 2, it is ensured that oil sealing oil return can smoothly pass over oil return breach 2 and return to the oil end Shell.

As shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 6, housing for timing gear 3 and multi-functional housing covef for timing gear are used to seal timing system System, timing system 5 is divided into gear, chain, three kinds of kinds of drive of belt, few logical in order to ensure that the noise of timing system 5 is tried one's best Cross housing covef for timing gear to blaze abroad, the propagation path of noise can be cut off by using various ways and avoid resonating, Housing for timing gear to be ensured is stamped sufficiently high intensity and mode.Described multi-functional housing covef for timing gear 4 is one Body structure.Being provided with some bulges 6 on described multi-functional housing covef for timing gear body, described bulge 6 is polymorphic structure.Described Some reinforcements 7 it are provided with on multi-functional housing covef for timing gear body.Use technical scheme described in the utility model, according to mode Frequency evaluation analysis, model minimum frequency value fmin should be greater than 1.3 ± 0.1 times of electromotors, the 2 rank resonance frequencies when persistently exceeding the speed limit Rate.Such as, during diesel engine oil-cut rotating speed 3600rpm, 2 rank resonant frequencies are 120Hz, i.e. fmin > 144～168Hz.By increasing Reinforcement 7, abnormity bulge 6, it is ensured that 2 rank resonant frequencies of multi-functional housing covef for timing gear 4 are in outside upper limiting frequency, the most merits The probability resonated can be occurred the least by housing covef for timing gear 4, such noise is easily detected by multi-functional housing covef for timing gear 4 and propagates Go out.

As shown in Figure 5, Figure 8, multi-functional housing covef for timing gear 4 body is provided with some for fixing noise enclosure 10 Boss 8, on boss 8, match with bolt in tapped hole.Described boss 8 is 10.It is provided with use on described bolt lateral edges Endless groove in buckle noise enclosure 10.It is external that noise enclosure 10 is buckled in multi-functional housing covef for timing gear 4 by described bolt Surface.Between multi-functional housing covef for timing gear 4 body and noise enclosure 10, sound insulating pad 9 is set.

On described multi-functional housing covef for timing gear 4 increase boss 8 be used for sound insulating pad 9 and noise enclosure 10 are installed, reach every Audio fruit.Tapped hole on boss 8, sound insulating pad 9 is arranged on described multi-functional housing covef for timing gear 4 body and noise enclosure 10 Between.Noise enclosure 10 is snapped on bolt lateral edges.Boss 8 is distributed sound insulating pad 9 to be ensured and can be fitted in described many completely On function housing covef for timing gear 4 body, sound insulating pad 8 to be ensured has certain compression height.

Of the present utility model structure, feature and action effect are described in detail above according to graphic shown embodiment, with Upper described it is only preferred embodiment of the present utility model, but this utility model is not to limit practical range shown in drawing, every depend on The change made according to conception of the present utility model, or it is revised as the Equivalent embodiments of equivalent variations, still without departing from description and figure Show contained spiritual time, all should be in protection domain of the present utility model.

Claims (10)

1. The most multi-functional housing covef for timing gear, it is characterised in that: include body, arrange spacing flat at the seal mounting hole of described body Platform (1), described limiting platform (1) is in circular and be provided with some oil return breach (2).
2. The most multi-functional housing covef for timing gear, it is characterised in that described oil return breach (2) is spacing flat The upper uniform setting of platform (1).
3. The most multi-functional housing covef for timing gear, it is characterised in that described body is integrated.
4. The most multi-functional housing covef for timing gear, it is characterised in that be provided with some bulges on described body (6), described bulge (6) is polymorphic structure.
5. The most multi-functional housing covef for timing gear, it is characterised in that be provided with some reinforcements on described body Muscle (7).
6. The most multi-functional housing covef for timing gear, it is characterised in that be provided with on described body outer surface every Sound pad (9).
7. The most multi-functional housing covef for timing gear, it is characterised in that described sound insulating pad (9) outside arrange every Sound housing (10).
8. The most multi-functional housing covef for timing gear, it is characterised in that be provided with on described body some for The boss (8) of fixing noise enclosure (10), matches with bolt in the upper tapped hole of boss (8).
9. The most multi-functional housing covef for timing gear, it is characterised in that described boss (8) is 10.
10. The most multi-functional housing covef for timing gear, it is characterised in that be provided with on described bolt lateral edges Endless groove for buckle noise enclosure (10).