CN206036198U - Driving connection structure of gear and power takeoff that has this structure - Google Patents
Driving connection structure of gear and power takeoff that has this structure Download PDFInfo
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- CN206036198U CN206036198U CN201620912148.7U CN201620912148U CN206036198U CN 206036198 U CN206036198 U CN 206036198U CN 201620912148 U CN201620912148 U CN 201620912148U CN 206036198 U CN206036198 U CN 206036198U
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- gear
- spline
- splined hole
- elastomer
- transmission shaft
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Abstract
The utility model provides a driving connection structure of gear and power takeoff that has this structure, the driving connection structure of this gear include the gear and with the transmission shaft that gear drive connects still includes the elastomer, be provided with first splined hole on the gear, be provided with on the elastomer with the first spline of first splined hole complex, the second splined hole has still been seted up on the elastomer, be provided with on the transmission shaft with second splined hole complex second spline, first spline alternates in the first splined hole, the second spline alternates in the second splined hole, the gear the elastomer with the transmission shaft is coaxial arranging each other. Through setting up the elastomer, with the change of the rigid connection between gear and the transmission shaft for the flexonics, the assembling is better, and the cushioning effect of elastomer can reduce vibrations that spline and splined hole produced to hydraulic pump or plunger pump output characteristic's impact, messenger output characteristic is comparatively steady.
Description
Technical field
This utility model is related to a kind of transmission connecting structure, particularly a kind of transmission connecting structure of gear and have the knot
The power takeoff of structure.
Background technology
On the special vehicles such as excavator, the traveling for electromotor for vehicle is not only needed to provide power, it is also desirable to start
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 driving gear, transition gear and the output gear for engaging successively, active therein
Gear is connected for the transmission of crankshaft with vehicle motor, output gear for vehicle plunger displacement pump or the power transmission shaft on hydraulic pump
It is connected.
All it is directly to be connected using spline between the output gear and plunger displacement pump or the power transmission shaft of hydraulic pump of traditional power takeoff
It is connected together, when gapless interference fit is adopted between corresponding spline and splined hole, between spline and splined hole
Assembling is poor；When being coordinated using the gap for having gap between corresponding spline and splined hole, although assembly line is preferable, but
When the outfan of power takeoff needs acceleration or deceleration etc. to operate, high frequency can be produced between rigid spline and splined hole and is acutely shaken
It is dynamic, and then impact is produced to the element on plunger displacement pump or hydraulic pump, the sealing property of motor element and associated seal is affected, together
When also result in plunger displacement pump or the output of hydraulic pump is unstable, affect the use longevity of plunger displacement pump or hydraulic pump and complete equipment
Life.
In view of this, the applicant is conducted in-depth research to related transmission connecting structure, has then this case to produce.
Utility model content
The purpose of this utility model is to provide a kind of assembling preferably and plunger displacement pump or the stable gear of hydraulic pump output
Transmission connecting structure and the power takeoff with the structure.
To achieve these goals, the transmission connecting structure of this utility model gear is adopted the following technical scheme that：
A kind of transmission connecting structure of gear, the power transmission shaft being connected including gear and with the gear drive, also including bullet
Gonosome, is provided with the first splined hole on the gear, be provided with first coordinated with first splined hole on the elastomer
Spline, is further opened with the second splined hole on the elastomer, be provided with and second splined hole cooperation on the power transmission shaft
Second spline, first spline are interspersed in first splined hole, and second spline is interspersed in second splined hole
Interior, the gear, the elastomer and the power transmission shaft are mutually coaxially arranged.
Improve as one kind of the present utility model, first spline and/or second spline are involute spline.
As it is of the present utility model it is a kind of improve, between first spline and first splined hole and described second
Using gap cooperation, interference fits or interference fit between spline and second splined hole.
Power takeoff of the present utility model is adopted the following technical scheme that：
A kind of power takeoff, including the driving gear, transition gear and output gear that engage successively, also including elastomer, institute
State, on the elastomer, be provided with the first flower coordinated with first splined hole
Key, is further opened with the second splined hole coordinated with the power transmission shaft of plunger displacement pump or hydraulic pump, first spline on the elastomer
It is interspersed in first splined hole, the mutually coaxial cloth of the output gear, first splined hole and second splined hole
Put.
Improve as one kind of the present utility model, first splined hole and/or second splined hole have involute
Spline.
As it is of the present utility model it is a kind of improve, between first spline and first splined hole and described second
Using gap cooperation, interference fits or interference fit between spline and second splined hole.
Using above-mentioned technical proposal, this utility model has the advantages that：
1st, by arranging elastomer, being rigidly connected between gear or output gear and power transmission shaft is changed to into flexible company
Connect, assembling is preferable, and the cushioning effect of elastomer can reduce the high frequency strenuous vibration of spline and splined hole generation to motion unit
The impact of part and sealing member, plunger displacement pump or hydraulic pump output characteristics are also more steady, can be by the use longevity of plunger displacement pump or hydraulic pump
Life extends 3-5.
2nd, the first spline by being arranged on elastomer is interspersed in elastomer in output gear, will not increase power takeoff
Appearance profile size, structure is more compact.
Description of the drawings
Structural representations of the Fig. 1 for the power takeoff of this utility model form touch；
Positive structure diagrams of the Fig. 2 for the power takeoff of this utility model compact conformation, broken section in figure, and be connected with
Engine crankshaft and flywheel；
Self-lubricating structure schematic diagrams of the Fig. 3 for the power takeoff of this utility model compact conformation, in figure, arrow show lubrication
The flow direction of liquid.
It is as follows that correspondence is indicated in each figure：
10- housings；20- driving gears；
30- transition gears；31- transition wheel shafts；
32- bearings；33- bearing (ball) covers；
34- back-up rings；40- output gears；
The first splined holes of 41-；51- bolts；
52- alignment pins；53- bent axles；
54- flywheels；61- elastomers；
The second splined holes of 62-；63 angular contact bearings；
71- atomizers；72- shoe cream rooms；
73- lubrication channels；
Specific embodiment
This utility model is described further with specific embodiment 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 is provided, including housing 10 and is arranged on shell
Driving gear 20, transition gear 30 and the output gear 40 for 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 the difference of output gear 40 position
In the both sides of transition gear 30.
Attachment structure is provided between driving gear 20 and electromotor, also the as attachment structure of power takeoff and electromotor.
Specifically, the power takeoff of the present embodiment also include being offered on bolt 51 and alignment pin 52, and driving gear 20 respectively perforation and
Location hole, the quantity of perforation can be arranged according to actual needs, in the present embodiment, be 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 is respectively interposed in each perforation, and the two ends of each bolt respectively with
The flywheel of electromotor and bent axle connection, alignment pin 52 are interspersed in location 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 is needed with bent axle 53 and flywheel 54, on flywheel 54
Also perforation is offered, the perforation also there are are five and corresponded with the perforation on driving gear 20, offers five on bent axle 53
With the one-to-one screwed hole of perforation on flywheel 54 or driving gear 20, i.e., each screwed hole also with the axis of driving gear 20 is
Center circumferential is arranged on bent axle 53, meanwhile, bent axle 53 be that location hole on driving gear 20 is corresponding on flywheel 54
Also to offer at position location hole is offered respectively on location hole, the i.e. correspondence position of bent axle 53, flywheel 54 and driving gear 20,
It should be noted that as there are five circumference cloth generally on the bent axle 53 of the electromotor for directly buying acquisition from the market
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 perforation.Each bolt 51 sequentially pass through on flywheel 54 and driving gear 20 it is corresponding perforation and spiral be connected to it is 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, i.e., the power takeoff of the present embodiment also includes being fixed on
Transition wheel shaft 31 in housing 10, transition wheel shaft 31 are 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 arranged over bearings 32.
Preferably, in the present embodiment, bearing 32 has two, and is all cylinder roller bearing, sets between two bearings 32
The back-up ring 34 being fixed on transition gear 30 is equipped with, two bearings 32 can be both isolated from each other by back-up ring 34, prevented also from transition
Gear 30 produces axial jump during rotation.
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 exports
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
The first spline that keyhole 41 coordinates, is further opened with coordinating and and elastomer with the power transmission shaft of plunger displacement pump or hydraulic pump on elastomer 61
61 the second coaxial splined holes 62, the first spline are interspersed in the first splined hole 41, and output gear 40,41 and of the first splined hole
Second splined hole 62 is mutually coaxially arranged.
Need on the power transmission shaft of plunger displacement pump or hydraulic pump arrange with the second splined hole coordinate 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 into flexible connection, assembling is preferable, and the buffering of elastomer is made
With high frequency strenuous vibration that spline and splined hole produce can be reduced to the motor element and sealing member on plunger displacement pump or hydraulic pump
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 lifting the stability and reliability of attachment structure.
Additionally, as shown in Figure 1-Figure 3, the power takeoff that the present embodiment is provided also has self lubricating system, the self lubricating system
Lubrication system, three kinds of structures of lubrication system and storage type lubrication system of high-order gear including low level gear, specifically, housing
The bottom of 10 inner chamber is provided with the oil groove (not shown) for filling lubricating oil, and the bottom of driving gear 20 is immersed in the oil groove
Interior, during use, the lubricating oil in oil groove is can be adsorbed on the gear teeth of driving gear 20, and as the rotation of driving gear 20 is by band
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 position corresponding with the meshing point between output gear 40 and transition gear 30
Fueller is provided with, certainly, fueller can also be at the position corresponding with the bottom of output gear 40.In this reality
Apply in example, fueller is arranged between housing 10 and output gear 40 and transition gear 20 for atomizer 71, i.e. atomizer 71
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 the parabolical terminal is located at output
Meshing point between gear 40 and transition gear 20, it may be preferable on the flank of tooth upward of 20 corresponding teeth of transition gear.Together
When, the direction of rotation of output gear 40 is from nibbling between the lower extreme point Jing output gears 40 and transition gear 30 of output gear 40
Upper extreme point direction of the chalaza to output gear 40, for example, when output gear 40 is located above 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 as the rotation of output gear 40 is by band
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-order gear is can be not only used in power takeoff, it is also possible to for which
In the gear-box of his type, as long as the gear-box includes second gear, the first gear for engaging successively, and first gear is located at
Above the side of second gear, specifically, arrange fueller to be located at the position corresponding with the bottom of first gear, together
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 the upper extreme point direction from the meshing point between the lower extreme point Jing first gears and second gear of first gear to first gear.
Groove is further opened with housing 10, forms shoe cream room 72, fill in shoe cream room 72 between groove and bearing (ball) cover 33
Lubricating oil, and positioned at the lower section of atomizer 71, be easy to shoe cream room 72 accept from atomizer 71 drip or atomizer 71 be injected in it is defeated
Go out to reflect the lubricating oil of drippage on gear 40 or transition gear 30.Offer on 72 transition wheel shaft 31 of shoe cream room and connect with shoe cream room 72
Logical lubrication channel 73, towards bearing 32, the other end is connected the opening of 73 one end of lubrication channel with shoe cream room 72.In the present embodiment
In, lubrication channel 73 towards one end of bearing 32 opening up arrangement and be located at two bearings 32 between, while shoe cream room 72
Horizontal level of the interior lubricating oil liquid level higher than the upper extreme point of transition wheel shaft 31.During use, the lubricating oil in shoe cream room 72 is in liquid
Pressure effect is lower to overflow from lubrication channel 73 towards the opening of 32 one end of bearing, bearing 32 is lubricated, while overflowing to axle
Hold the lubricating oil on 32 also flow down on transition wheel shaft 31, transition wheel shaft 31 can be lubricated under gravity, on
State structure and be storage type lubrication system.
Preferably, for above-mentioned storage type lubrication system, can be being respectively arranged with two opposite sides of bearing 32
The baffle ring being set on transition wheel shaft 31, lubrication channel 73 are located between two baffle rings towards the opening of one end of bearing 32, and
Oil storage tank is formed 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 from the upper end of oil storage tank and bearing 32 is entered on bearing 32
Row lubrication, while the lubricating oil in oil storage tank also can obtain certain centrifugal force with the rotation of transition gear 30, to transition
Gear 30 and transition wheel shaft 31 are lubricated, and not only lubricant effect is preferable for this lubrication system, and with certain radiating effect,
The heat that i.e. pinion rotation is produced can be pulled away with the flowing of lubricating oil.
Embodiment two.
The present embodiment provides a kind of transmission connecting structure of gear, the 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, the structure include gear and with the tooth
The power transmission shaft that is connected of wheel, and arrange on the gear and coaxial with the gear have the first splined hole.
The structure also includes elastomer, is provided with the first spline coordinated with the first splined hole, the elasticity on the elastomer
The second splined hole is further opened with body, the second spline coordinated with the second splined hole is provided with power transmission shaft, and the first spline interts
In the first splined hole, the second spline is interspersed in the second splined hole, and it is mutually coaxial to assemble backgear, elastomer and power transmission shaft
Arrangement.Interference fits or interference is adopted to match somebody with somebody 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 is provided
Connect, assembling is preferable, and the cushioning effect of elastomer can reduce the high frequency strenuous vibration that spline and splined hole are produced, output characteristics
Also more steady, the first spline by being arranged on elastomer is interspersed in elastomer in gear in addition, and structure is more compact.
This utility model is described in detail above in conjunction with accompanying drawing, 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 belong to protection domain of the present utility model.
Claims (6)
1. a kind of transmission connecting structure of gear, the power transmission shaft being connected including gear and with the gear drive, it is characterised in that
Also include elastomer, be provided with the first splined hole on the gear, be provided with the elastomer and match somebody with somebody with first splined hole
The first spline for closing, is further opened with the second splined hole, is provided with and second spline on the power transmission shaft on the elastomer
The second spline that hole coordinates, first spline is interspersed in first splined hole, and second spline is interspersed in described the
In two splined holes, the gear, the elastomer and the power transmission shaft are mutually coaxially arranged.
2. the transmission connecting structure of gear as claimed in claim 1, it is characterised in that first spline and/or described
Two splines are involute spline.
3. the transmission connecting structure of gear as claimed in claim 1 or 2, it is characterised in that first spline and described
Matched somebody with somebody using gap cooperation, interference fits or interference between one splined hole and between second spline and second splined hole
Close.
4. a kind of power takeoff, including the driving gear, transition gear and output gear that engage successively, it is characterised in that also include
Elastomer, is provided with the first splined hole on the output gear, be provided with and coordinate with first splined hole on the elastomer
The first spline, be further opened with the second splined hole coordinated with the power transmission shaft of plunger displacement pump or hydraulic pump on the elastomer, it is described
First spline is interspersed in first splined hole, the output gear, first splined hole and the second splined hole phase
It is mutually coaxially arranged.
5. power takeoff as claimed in claim 4, it is characterised in that first splined hole and/or second splined hole tool
There is involute spline.
6. the power takeoff as described in claim 4 or 5, it is characterised in that between first spline and first splined hole
And using gap cooperation, interference fits or interference fit between second spline and second splined hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620912148.7U CN206036198U (en) | 2016-08-20 | 2016-08-20 | Driving connection structure of gear and power takeoff that has this structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620912148.7U CN206036198U (en) | 2016-08-20 | 2016-08-20 | Driving connection structure of gear and power takeoff that has this structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036198U true CN206036198U (en) | 2017-03-22 |
Family
ID=58307649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620912148.7U Active CN206036198U (en) | 2016-08-20 | 2016-08-20 | Driving connection structure of gear and power takeoff that has this structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206036198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483631A (en) * | 2020-11-06 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Connection structure and transmission |
-
2016
- 2016-08-20 CN CN201620912148.7U patent/CN206036198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483631A (en) * | 2020-11-06 | 2021-03-12 | 安徽江淮汽车集团股份有限公司 | Connection structure and transmission |
| CN112483631B (en) * | 2020-11-06 | 2021-11-26 | 安徽江淮汽车集团股份有限公司 | Connection structure and transmission |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |