CN205936833U - Power takeoff from lubricating system - Google Patents
Power takeoff from lubricating system Download PDFInfo
- Publication number
- CN205936833U CN205936833U CN201620912181.XU CN201620912181U CN205936833U CN 205936833 U CN205936833 U CN 205936833U CN 201620912181 U CN201620912181 U CN 201620912181U CN 205936833 U CN205936833 U CN 205936833U
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- Prior art keywords
- gear
- bearing
- output gear
- transition
- power takeoff
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Abstract
The utility model provides a power takeoff from lubricating system, including casing and driving gear, transition gear and output gear, the bottom of the inner chamber of casing is provided with the oil groove of filling with lubricating oil, soak the lower part of driving gear in the oil groove, the casing with output gear with the corresponding position department of mesh point between the transition gear is provided with the fuel sprayer, output gear's direction of rotation is for following output gear's lower extreme point warp output gear with mesh point between the transition gear to output gear's last extreme point orientation. Set up the oil groove bottom the inner chamber at the casing to with the fuel sprayer setting and output gear and transition gear between the casing of the corresponding position of mesh point on, lubricate driving gear or output gear and corresponding bearing with the help of driving gear and the rotatory centrifugal force guide lubricating oil that produces of output gear, structure and simple process, the low just lubrication effect of the processing degree of difficulty are better relatively.
Description
Technical field
This utility model is related to a kind of lubricating system, particularly a kind of self lubricating system of power takeoff.
Background technology
On the special vehicles such as excavator, not only need to provide power it is also desirable to start for electromotor for the traveling of vehicle
Machine provides some or all power to be used for driving miscellaneous part, and this is accomplished by installing on the electromotor of this kind of special vehicle
Power takeoff.
Traditional power takeoff generally includes the driving gear engaging successively, transition gear and output gear and is used for lubricating
The structure of the lubricating system of each gear, wherein lubricating system is typically more complicated.In Publication No. CN204226002U
A kind of engine torque extracting machine with built-in oil leab disclosed in state's utility model patent, including housing, shaft gear, oil pocket,
Fore bearing, rear bearing, set boss in housing forward end, and boss has the oil input channel of straight-through oil pocket, and the external port of oil input channel is by sealing
Plug screw assembly is closed, and the front end face of boss has transition oil duct lead to oil input channel, the oil-out on transition oil duct and backgear room
Corresponding.Described oil input channel is stepped, and it is close to a diameter of 2～4mm of inner side oil input channel of oil pocket, oil input channel diameter outside it
For 7～9mm.Described sealing plug assembly includes plug screw and O-ring seal.Transition oil duct passes through dress with backgear room oil-out
Relation of joining is connected, and machine oil flows through backgear room oil-out, transition oil duct, stepped oil input channel successively, is then ejected into power takeoff
Oil pocket in housing, thus be lubricated to the bearing in power takeoff assembly.But the housing due to power takeoff is generally foundry goods,
In foundry goods, the technique of setting oil circuit is complex, and difficulty of processing is relatively large, and lubricant effect is also to be improved.
In view of this, the applicant conducts in-depth research to the lubricating system of power takeoff, then has this case to produce.
Utility model content
The purpose of this utility model is to provide a kind of structure and process is simple, difficulty of processing is low and lubricant effect is relative
The self lubricating system of preferable power takeoff.
To achieve these goals, this utility model adopts the following technical scheme that：
A kind of self lubricating system of power takeoff, including housing and the driving tooth that is arranged in described housing and engages successively
Wheel, transition gear and output gear, described output gear is located above the side of described transition gear, the bottom of the inner chamber of described housing
Portion is provided with the oil groove filling lubricating oil, and the bottom of described driving gear is immersed in described oil groove, described housing with described
It is provided with atomizer, the injection of described atomizer at the corresponding position of meshing point between output gear and described transition gear
Towards the meshing point between described output gear and described transition gear, the direction of rotation of described output gear is from described in direction
The lower extreme point of output gear through upper end from the meshing point between described output gear and described transition gear to described output gear
Point direction.
As a kind of improvement of the present utility model, also include the transition wheel shaft being fixed in described housing, described transition wheel
Bearing and bearing (ball) cover are arranged with axle, described transition gear is set on described bearing, described housing opens up fluted, institute
State formation shoe cream room between groove and described bearing (ball) cover, described transition wheel shaft offers the lubrication connecting with described shoe cream room
Passage.
As a kind of improvement of the present utility model, the opening of described lubrication channel one end is towards described bearing.
As a kind of improvement of the present utility model, described bearing has two, is provided with and is fixed between two described bearings
Back-up ring on described transition gear.
As a kind of improvement of the present utility model, the opening up arrangement of described lubrication channel one end towards described bearing
And be located between two described bearings, the lubricating oil liquid level of described oil storage intracavity is higher than the level of the upper extreme point of described transition wheel shaft
Position.
As a modification of the present invention, two opposite sides of described bearing are respectively arranged with and are set in described transition wheel
Baffle ring on axle, the opening of described lubrication channel one end towards described bearing is located between two described baffle rings, and two institutes
State formation oil storage tank between baffle ring.
As a kind of improvement of the present utility model, described bearing is cylinder roller bearing.
As a kind of improvement of the present utility model, described driving gear is located at the side-lower of described transition gear, and described
Driving gear and described output gear are respectively positioned at the both sides of described transition gear.
Using technique scheme, this utility model has the advantages that：
1st, pass through the intracavity bottom in housing and oil groove is set, and atomizer is arranged on and output gear and transition gear
Between the housing of meshing point opposite position on, by driving gear and output gear rotation produce centrifugal force guiding lubrication
Oil is lubricated to driving gear or output gear and corresponding bearing, arranges the technical scheme phase of oil circuit on housing with tradition
Structure is with process is simple, difficulty of processing is low and lubricant effect is relative preferable for ratio.
2. pass through to arrange lubrication channel on transition wheel shaft, using the pressure reduction between lubrication channel and shoe cream room, bearing is entered
Row lubrication, effectively ensure that the supply of lubricating oil, lubricant effect is relatively preferable.
Brief description
Fig. 1 is the structural representation of the power takeoff of this utility model form touch；
Fig. 2 is the positive structure diagram of the power takeoff of this utility model compact conformation, in figure broken section, and is connected with
Engine crankshaft and flywheel；
Fig. 3 is the self-lubricating structure schematic diagram of the power takeoff of this utility model compact conformation, and in figure arrow show lubrication
The flow direction of liquid.
It is as follows that each in figure indicates correspondence：
10- housing；20- driving gear；
30- transition gear；31- transition wheel shaft；
32- bearing；33- bearing (ball) cover；
34- back-up ring；40- output gear；
41- first splined hole；51- bolt；
52- alignment pin；53- bent axle；
54- flywheel；61- elastomer；
62- second splined hole；63 angular contact bearings；
71- atomizer；72- shoe cream room；
73- lubrication channel；
Specific embodiment
With specific embodiment, this utility model is described further below in conjunction with the accompanying drawings.
Embodiment one.
As depicted in figs. 1 and 2, the power takeoff of the compact conformation that the present embodiment provides, including housing 10 and be arranged on shell
Driving gear 20, transition gear 30 and the output gear 40 engaging in body 10 and successively, wherein output gear 40 are located at transition tooth
Above the side of wheel 30, driving gear 20 is located at the side-lower of transition gear 30, and driving gear 20 and output gear 40 position respectively
Both sides in transition gear 30.
It is provided with attachment structure, also the attachment structure of as power takeoff and electromotor between driving gear 20 and electromotor.
Specifically, the power takeoff of the present embodiment also include on bolt 51 and alignment pin 52, and driving gear 20 offering respectively perforation and
Location hole, the quantity of perforation can be arranged according to actual needs, in the present embodiment, is perforated with five, certainly corresponding
Bolt 51 also has five, five perforation centered on the axis of driving gear 20 circumference on driving gear 20, location hole
Only one of which, is located therein between two perforation.Each bolt 51 be respectively interposed each perforation on, and the two ends of each bolt respectively with
The flywheel of electromotor and bent axle connect, and alignment pin 52 is interspersed in positioning in the hole, and the two ends of alignment pin 52 are also respectively interposed and are sending out
On the flywheel and bent axle of motivation.
Accordingly, the electromotor being connected with the power takeoff of the present embodiment needs with bent axle 53 and flywheel 54, on flywheel 54
Also offer perforation, this perforation is also had five and corresponded with the perforation on driving gear 20, and bent axle 53 offers five
With the one-to-one screwed hole of perforation on flywheel 54 or driving gear 20, that is, each screwed hole also with the axis of driving gear 20 be
Center circumferential is arranged on bent axle 53, and meanwhile, bent axle 53 is corresponding with the location hole being on driving gear 20 on flywheel 54
Also offer location hole at position, offer location hole respectively on the correspondence position of bent axle 53, flywheel 54 and driving gear 20,
It should be noted that generally there are five circumference cloth due to directly buying from the market on the bent axle 53 of the electromotor obtaining
The screwed hole put, in actual production, only need to be in the position according to the screwed hole on bent axle 53 on flywheel 54 and driving gear 20
Open up and bore a hole.Each bolt 51 sequentially pass through on flywheel 54 and driving gear 20 corresponding perforation and spiral be connected to corresponding
On screwed hole, alignment pin 52 is interspersed on the location hole of flywheel 54, driving gear 20 and bent axle 53 successively, realizes electromotor with this
Connection and power takeoff between, compact conformation and stability is preferable.
Transition gear 30 is arranged in housing 10 by transition wheel shaft 31, and that is, the power takeoff of the present embodiment also includes being fixed on
Transition wheel shaft 31 in housing 10, transition wheel shaft 31 is to be arranged with bearing 32 and bearing (ball) cover on trapezoid shaft, and transition wheel shaft 31
33, its middle (center) bearing 32 is located between bearing (ball) cover 33 and the step surface of transition wheel shaft 31, and transition gear 30 is set in bearing 32
On.
Preferably, in the present embodiment, bearing 32 has two, and is all cylinder roller bearing, sets between two bearings 32
It is equipped with the back-up ring 34 being fixed on transition gear 30, two bearings 32 both can be isolated from each other by back-up ring 34, prevented also from transition
Gear 30 produces axial jump during rotating.
Output gear 40 is arranged in housing 10 by angular contact bearing 63, and output gear 40 and plunger displacement pump or hydraulic pump
Power transmission shaft between on be provided with transmission connecting structure, specifically, the power takeoff of the present embodiment also includes elastomer 61, and export
First splined hole 41 coaxial with output gear 40 is provided with gear 40.It is provided with the lateral surface of elastomer 61 and the first flower
First spline of keyhole 41 cooperation, elastomer 61 is further opened with the power transmission shaft cooperation with plunger displacement pump or hydraulic pump and and elastomer
61 the second coaxial splined holes 62, the first spline is interspersed in the first splined hole 41, and output gear 40, the first splined hole 41 and
Second splined hole 62 is mutually coaxially arranged.
Need on the power transmission shaft of plunger displacement pump or hydraulic pump arrange with second splined hole cooperation the second spline, the first spline and
Interference fits or interference fit can be adopted between first splined hole 41 and between the second spline and the second splined hole 62.So may be used
Being rigidly connected between output gear 40 and power transmission shaft is changed to be flexibly connected, assembling is preferable, and the buffering of elastomer is made
With the high frequency strenuous vibration that spline and splined hole produce can be reduced to the motor element on plunger displacement pump or hydraulic pump and sealing member
Impact, plunger displacement pump or hydraulic pump output characteristics are also more steady, the service life of plunger displacement pump or hydraulic pump can be extended 3-5.
Preferably, in the present embodiment, the first splined hole 41 and/or the second splined hole 62 have involute spline, gradually open
The use of line spline contributes to being lifted stability and the reliability of attachment structure.
Additionally, as shown in Figure 1-Figure 3, the power takeoff that the present embodiment provides also has self lubricating system, this self lubricating system
Including the lubrication system of low level gear, the lubrication system of high-order gear and three kinds of structures of storage type lubrication system, specifically, housing
The bottom of 10 inner chamber is provided with the oil groove (not shown) filling lubricating oil, and the bottom of driving gear 20 is immersed in this oil groove
Interior, during use, the lubricating oil in oil groove can be adsorbed on the gear teeth of driving gear 20, and is carried with the rotation of driving gear 20
To the upper end of driving gear 20, then flow down under gravity, moistens to driving gear 20 and corresponding bearing
Sliding, said structure is the lubrication system of low level gear.
The intracavity sidewall of housing 10 is at the corresponding position of the meshing point between output gear 40 and transition gear 30
It is provided with fueller, certainly, fueller can also be located at the position corresponding with the bottom of output gear 40.In this reality
Apply in example, fueller is atomizer 71, that is, atomizer 71 is arranged between housing 10 and output gear 40 and transition gear 20
The corresponding position of meshing point at.Atomizer 71 is connected with the oil supply pipe outside power takeoff, and its injection direction is towards output
Meshing point between gear 40 and transition gear 20, certainly, specific spray angle needs the class according to actual atomizer 71
Type is configured, for example, can parabolically spray the atomizer of lubricating oil, now it is ensured that this parabolical terminal is located at output
Meshing point between gear 40 and transition gear 20 is it may be preferable to be located on the flank of tooth upward of transition gear 20 corresponding teeth.With
When, the direction of rotation of output gear 40 is through nibbling between output gear 40 and transition gear 30 from the lower extreme point of output gear 40
Chalaza is to the upper extreme point direction of output gear 40, for example, when above output gear 40 being located at the right side of transition gear 30, output
The direction of rotation of gear 40 should be counterclockwise, conversely, then the direction of rotation of output gear 40 should be clockwise.Use
When, the lubricating oil that atomizer 71 sprays can adsorb on the gear teeth of output gear 40, and is carried with the rotation of output gear 40
The upper end of dynamic output gear 40, then flow down under gravity, moistens to output gear 40 and corresponding bearing
Sliding, said structure is the lubrication system of high-order gear.
It should be noted that the lubrication system of above-mentioned high position gear can be not only used in power takeoff it is also possible to be used for it
In the gear-box of his type, as long as this gear-box includes second gear, the first gear engaging successively, and first gear is located at
Above the side of second gear, specifically, setting fueller is located at the position corresponding with the bottom of first gear, with
Sample, fueller is preferably atomizer, and the meshing point that atomizer is arranged between first gear and second gear is corresponding
Position at, the injection direction of atomizer is towards the meshing point between first gear and second gear, the rotation side of first gear
To for from the lower extreme point of first gear through upper extreme point direction from the meshing point between first gear and second gear to first gear.
Groove is further opened with housing 10, forms shoe cream room 72 between groove and bearing (ball) cover 33, fill in shoe cream room 72
Lubricating oil, and be located at atomizer 71 lower section, be easy to shoe cream room 72 accept from atomizer 71 drip or atomizer 71 be injected in defeated
Go out to reflect the lubricating oil of drippage on gear 40 or transition gear 30.Offer on shoe cream room 72 transition wheel shaft 31 with shoe cream room 72 even
Logical lubrication channel 73, towards bearing 32, the other end is connected the opening of lubrication channel 73 one end with shoe cream room 72.In this enforcement
Example in, the opening up arrangement of lubrication channel 73 one end towards bearing 32 and be located at two bearings 32 between, shoe cream room simultaneously
Lubricating oil liquid level in 72 is higher than the horizontal level of the upper extreme point of transition wheel shaft 31.During use, the lubricating oil in shoe cream room 72 exists
Can overflow from lubrication channel 73 towards the opening of bearing 32 one end under hydraulic action, bearing 32 is lubricated, overflows to simultaneously
Lubricating oil on bearing 32 also can flow down on transition wheel shaft 31, be lubricated to transition wheel shaft 31 under gravity,
Said structure is storage type lubrication system.
Preferably, for above-mentioned storage type lubrication system, can also be respectively arranged with two opposite sides of bearing 32
It is set in the baffle ring on transition wheel shaft 31, the opening of lubrication channel 73 one end towards bearing 32 is located between two baffle rings, and
Form oil storage tank between two baffle rings.Certainly, the lubricating oil liquid level in shoe cream room 72 needs the upper extreme point higher than baffle ring, so,
Lubrication in lubrication channel 73 has can first fill oil storage tank, then overflow to bearing 32, bearing 32 to be entered from the upper end of oil storage tank
Row lubrication, the lubricating oil in oil storage tank obtains certain centrifugal force as well as the rotation of transition gear 30 simultaneously, to transition
Gear 30 and transition wheel shaft 31 are lubricated, and not only lubricant effect is preferable for this lubrication system, and has certain radiating effect,
The heat that i.e. pinion rotation produces can be pulled away with the flowing of lubricating oil.
Embodiment two.
The present embodiment provides a kind of transmission connecting structure of gear, this structure and output gear 40 and plunger in embodiment one
Be provided with transmission connecting structure between pump or the power transmission shaft of hydraulic pump identical, specifically, this structure include gear and with this tooth
Take turns the power transmission shaft that is in transmission connection, and on this gear setting coaxial with this gear have the first splined hole.
This structure also includes elastomer, and this elastomer is provided with the first spline with the first splined hole cooperation, this elasticity
Second splined hole is further opened with body, power transmission shaft is provided with the second spline with the second splined hole cooperation, the first spline interts
In the first spline in the hole, the second spline is interspersed in the second spline in the hole, and it is mutually coaxial to assemble backgear, elastomer and power transmission shaft
Arrangement.Joined using interference fits or interference between first spline and the first splined hole and between the second spline and the second splined hole
Close.
Preferably, in the present embodiment, the first spline and/or the second spline are involute spline.
Being rigidly connected between gear and power transmission shaft can be changed to flexible company by the transmission connecting structure that the present embodiment provides
Connect, assembling is preferable, and the cushioning effect of elastomer can reduce the high frequency strenuous vibration that spline and splined hole produce, output is special
Property also more steady, elastomer is interspersed in gear the first spline by being arranged on elastomer in addition, and structure is more tight
Gather.
Above in conjunction with accompanying drawing, this utility model is described in detail, but embodiment of the present utility model not only
It is limited to above-mentioned embodiment, those skilled in the art can make various modifications to this utility model according to prior art, such as will
Atomizer 71 in embodiment one is changed to other fuellers etc., and these broadly fall into protection domain of the present utility model.
Claims (8)
1. a kind of self lubricating system of power takeoff, including housing and the driving tooth that is arranged in described housing and engages successively
Wheel, transition gear and output gear it is characterised in that described output gear is located above the side of described transition gear, described shell
The bottom of the inner chamber of body is provided with the oil groove filling lubricating oil, and the bottom of described driving gear is immersed in described oil groove, described
Housing is provided with atomizer at the corresponding position of the meshing point between described output gear and described transition gear, described
The injection direction of atomizer is towards the meshing point between described output gear and described transition gear, the rotation of described output gear
Direction is to described defeated from the lower extreme point of described output gear through the meshing point between described output gear and described transition gear
Go out the upper extreme point direction of gear.
2. the self lubricating system of power takeoff as claimed in claim 1 is it is characterised in that also include being fixed in described housing
Transition wheel shaft, described transition wheel shaft is arranged with bearing and bearing (ball) cover, and described transition gear is set on described bearing, described
Open up fluted on housing, between described groove and described bearing (ball) cover formed shoe cream room, described transition wheel shaft offers with
The lubrication channel of described shoe cream room connection.
3. the self lubricating system of power takeoff as claimed in claim 2 is it is characterised in that the opening court of described lubrication channel one end
To described bearing.
4. the self lubricating system of power takeoff as claimed in claim 3 is it is characterised in that described bearing has two, described in two
It is provided with the back-up ring being fixed on described transition gear between bearing.
5. the self lubricating system of power takeoff as claimed in claim 3 is it is characterised in that described lubrication channel is towards described bearing
The opening up arrangement of one end and be located between two described bearings, the lubricating oil liquid level of described oil storage intracavity is higher than described mistake
The horizontal level of the upper extreme point of ferry boat axle.
6. the self lubricating system of power takeoff as claimed in claim 5 is it is characterised in that two opposite sides of described bearing are divided
It is not provided with the baffle ring being set on described transition wheel shaft, the opening of described lubrication channel one end towards described bearing is located at two
Between individual described baffle ring, and between two described baffle rings, form oil storage tank.
7. the self lubricating system of the power takeoff as described in any claim in claim 2-6 is it is characterised in that described bearing
For cylinder roller bearing.
8. the self lubricating system of the power takeoff as described in any claim in claim 2-6, its feature exists, described driving tooth
Wheel is located at the side-lower of described transition gear, and described driving gear and described output gear are located at described transition gear respectively
Both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620912181.XU CN205936833U (en) | 2016-08-20 | 2016-08-20 | Power takeoff from lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620912181.XU CN205936833U (en) | 2016-08-20 | 2016-08-20 | Power takeoff from lubricating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936833U true CN205936833U (en) | 2017-02-08 |
Family
ID=57947344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620912181.XU Withdrawn - After Issue CN205936833U (en) | 2016-08-20 | 2016-08-20 | Power takeoff from lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224092A (en) * | 2016-08-20 | 2016-12-14 | 泉州鑫豪工程机械科技有限公司 | A kind of self lubricating system of power takeoff |
-
2016
- 2016-08-20 CN CN201620912181.XU patent/CN205936833U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224092A (en) * | 2016-08-20 | 2016-12-14 | 泉州鑫豪工程机械科技有限公司 | A kind of self lubricating system of power takeoff |
| WO2018036099A1 (en) * | 2016-08-20 | 2018-03-01 | 泉州鑫豪工程机械科技有限公司 | Self-lubrication system of power takeoff |
| CN106224092B (en) * | 2016-08-20 | 2019-01-08 | 泉州鑫豪工程机械科技有限公司 | A kind of self lubricating system of power takeoff |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20190108 |