CN106224507A - A kind of power takeoff of compact conformation - Google Patents
A kind of power takeoff of compact conformation Download PDFInfo
- Publication number
- CN106224507A CN106224507A CN201610697236.4A CN201610697236A CN106224507A CN 106224507 A CN106224507 A CN 106224507A CN 201610697236 A CN201610697236 A CN 201610697236A CN 106224507 A CN106224507 A CN 106224507A
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- CN
- China
- Prior art keywords
- gear
- spline
- driving gear
- hole
- power takeoff
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/06—Combinations of engines with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/0203—Gearboxes; Mounting gearing therein the gearbox is associated or combined with a crank case of an engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gear Transmission (AREA)
Abstract
The present invention provides the power takeoff of a kind of compact conformation, including housing and the driving gear, transition gear and the output gear that are arranged in described housing and engage successively, also include bolt, perforation is offered respectively on described driving gear, described bolt is interspersed in described perforation, and the two ends of described bolt are connected with flywheel and the bent axle of electromotor respectively.By arranging bolt and offering perforation on driving gear, only need to offer screwed hole on the bent axle of electromotor, the flywheel of electromotor is also offered perforation, then together with flywheel, driving gear being fixedly connected sequentially with bent axle by bolt, only need to utilize original screwed hole on bent axle, compared with the technical scheme that tradition processes spline on bent axle, production cost is relatively low and assembling preferable, and structure is the compactest.
Description
Technical field
The present invention relates to a kind of mechanical driving device, the power takeoff of a kind of compact conformation.
Background technology
On the special vehicles such as excavator, the traveling being vehicle for electromotor is not only needed to provide power, it is also desirable to start
Machine provides part or all power for driving miscellaneous part, and this is accomplished by the electromotor of this kind of special vehicle installing
Power takeoff.
Traditional power takeoff generally includes driving gear, transition gear and the output gear engaged successively, active therein
Gear is for being connected with the transmission of crankshaft of vehicle motor, and output gear is used for and the power transmission shaft on vehicle plunger displacement pump or hydraulic pump
It is in transmission connection.Generally use spline to connect between bent axle and the driving gear of electromotor, fix also by bolt on bent axle simultaneously
Connect and have flywheel, the most not only need to offer bolt hole on bent axle, in addition it is also necessary to processing spline on bent axle, production cost is relative
Higher.
Additionally, traditional power takeoff driving gear and engine crankshaft and output gear and plunger displacement pump or hydraulic pump
All use spline to be directly linked together between power transmission shaft, between corresponding spline and splined hole, use gapless mistake
Be full of cooperation time, the assembling between spline and splined hole is poor；Just have between gap between corresponding spline and splined hole
When gap coordinates, although assembly line is preferable, but when the outfan of power takeoff needs the operations such as acceleration or deceleration, the spline of rigidity
With high frequency strenuous vibration can be produced between splined hole, and then to the motor element on electromotor or plunger displacement pump or hydraulic pump and sealing
Part produces impact, affects the sealing property of associated seal, and the output simultaneously also resulting in power takeoff is unstable, affects plunger displacement pump
Or hydraulic pump and the service life of complete equipment.
In view of this, the structure of power takeoff is conducted in-depth research by the applicant, then has this case to produce.
Summary of the invention
It is an object of the invention to provide that a kind of production cost is relatively low and the power taking of the preferable compact conformation of assembling
Device.
To achieve these goals, the present invention adopts the following technical scheme that
The power takeoff of a kind of compact conformation, including housing and the driving tooth that is arranged in described housing and engages successively
Wheel, transition gear and output gear, also include bolt, described driving gear offer perforation respectively, described bolt is interspersed in
In described perforation, and the two ends of described bolt are connected with flywheel and the bent axle of electromotor respectively.
As a modification of the present invention, described in be perforated with five, five described perforation are with the axis of described driving gear
Centered by circumference on described driving gear.
As a modification of the present invention, also include alignment pin, described driving gear offers hole, location, described location
Pin is interspersed in hole, described location, and the two ends of described alignment pin are respectively interposed on the flywheel and bent axle of electromotor.
As a modification of the present invention, also include elastomer, described output gear is provided with the first splined hole, described
It is provided with the first spline coordinated with described first splined hole on elastomer, described elastomer is further opened with and plunger displacement pump or liquid
The second splined hole that the power transmission shaft of press pump coordinates, described first spline is interspersed in described first splined hole, described output gear,
Described first splined hole and described second splined hole are the most coaxially arranged.
As a modification of the present invention, described first splined hole and/or described second splined hole have involute spline.
As a modification of the present invention, between described first spline and described first splined hole and described second spline
And between described second splined hole, use matched in clearance, interference fits or interference fit.
Use technique scheme, the method have the advantages that
1, by arranging bolt and offering perforation on driving gear, only screwed hole need to be offered on the bent axle of electromotor,
The flywheel of electromotor is also offered perforation, then by bolt, flywheel, driving gear and bent axle is fixedly connected sequentially one
Rise, only need on bent axle thread mill drilling, compared with the technical scheme that tradition processes spline on bent axle, production cost is relatively
Low and assembling is preferable, and structure is the compactest.
2, by arranging elastomer, it is changed to flexibly connect by being rigidly connected between output gear and power transmission shaft, assembling
Property preferable, and motor element and sealing member rush by the microseism that the cushioning effect of elastomer can reduce spline and splined hole produces
Hitting, output characteristics is the mildest, can be extended 3-5 the service life of plunger displacement pump or hydraulic pump.
3, elastomer is interspersed in output gear by the first spline by being arranged on elastomer, will not increase power takeoff
Appearance profile size, structure is the compactest.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power takeoff of present configuration contact；
Fig. 2 be the compact power takeoff of present configuration face structural representation, broken section in figure, and connect to have and start
Machine crankshaft and flywheel；
Fig. 3 is the self-lubricating structure schematic diagram of the compact power takeoff of present configuration, and in figure, arrow show lubricating fluid
Flow direction.
Each figure indicates corresponding as follows:
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-the first splined hole；51-bolt；
52-alignment pin；53-bent axle；
54-flywheel；61-elastomer；
62-the second splined hole；63 angular contact bearings；
71-atomizer；72-shoe cream room；
73-lubrication channel；
Detailed description of the invention
The present invention 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 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 in body 10 and engaged successively, wherein output gear 40 is positioned at transition tooth
Above the side of wheel 30, driving gear 20 is positioned 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 between driving gear 20 and electromotor, is also the attachment structure of power takeoff and electromotor.
Concrete, the power takeoff of the present embodiment also include offering respectively on bolt 51 and alignment pin 52, and driving gear 20 perforation and
Hole, location, the quantity of perforation can be arranged according to actual needs, in the present embodiment, is perforated with five, the most corresponding
Bolt 51 also has five, and five perforation circumference centered by the axis of driving gear 20, on driving gear 20, position 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 connect, and alignment pin 52 is interspersed in hole, location, and the two ends of alignment pin 52 are also respectively interposed and are sending out
On the flywheel of motivation and bent axle.
Accordingly, the electromotor being connected with the power takeoff of the present embodiment needs have bent axle 53 and flywheel 54, on flywheel 54
Also offer perforation, this perforation also have five and with the perforation one_to_one corresponding on driving gear 20, bent axle 53 offers five
With the perforation screwed hole one to one on flywheel 54 or driving gear 20, the most each screwed hole also with the axis of driving gear 20 is
Center circumferential is arranged on bent axle 53, and meanwhile, bent axle 53 is corresponding with the hole, location being on flywheel 54 on driving gear 20
Position also offers and offers hole, location on location hole, the i.e. correspondence position of bent axle 53, flywheel 54 and driving gear 20 respectively,
It should be noted that generally there are five circumference cloth owing to directly buying from the market on the bent axle 53 of the electromotor obtained
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
Offer and bore a hole.Each bolt 51 sequentially passes through perforation corresponding on flywheel 54 and driving gear 20 and spiral is connected to correspondence
On screwed hole, alignment pin 52 is interspersed on the hole, location of flywheel 54, driving gear 20 and bent axle 53 successively, realizes electromotor with this
With the connection between power takeoff, compact conformation and stability are 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 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 between the step surface of bearing (ball) cover 33 and transition wheel shaft 31, and transition gear 30 is sheathed over bearings 32.
Preferably, in the present embodiment, bearing 32 has two, and is all cylinder roller bearing, sets between two bearings 32
Being 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, it is possible to prevents 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, concrete, the power takeoff of the present embodiment also includes elastomer 61, and output
First splined hole 41 coaxial with output gear 40 it is provided with on gear 40.It is provided with on the lateral surface of elastomer 61 and the first flower
The first spline that keyhole 41 coordinates, elastomer 61 is further opened with coordinate and and elastomer with the power transmission shaft of plunger displacement pump or hydraulic pump
61 the second coaxial splined holes 62, the first spline is interspersed in the first splined hole 41, and output gear the 40, first splined hole 41 and
Second splined hole 62 is the most coaxially arranged.
Need to arrange the second spline of coordinating with the second splined hole on the power transmission shaft of plunger displacement pump or hydraulic pump, the first spline with
Interference fits or interference fit can be used between first splined hole 41 and between the second spline and the second splined hole 62.So may be used
Being changed to flexibly connect by being rigidly connected between output gear 40 and power transmission shaft, assembling is preferable, and the buffering of elastomer is made
With reducing high frequency strenuous vibration that spline and splined hole produce to the motor element on plunger displacement pump or hydraulic pump and sealing member
Impact, plunger displacement pump or hydraulic pump output characteristics are the most steady, can be extended 3-5 the service life of plunger displacement pump or hydraulic pump.
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 promoting 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 lubrication system, the lubrication system of high-order gear and three kinds of structures of storage type lubrication system of low level gear, concrete, housing
The bottom of the inner chamber of 10 is provided with the oil groove (not shown) filling lubricating oil, and the bottom of driving gear 20 is immersed in this oil groove
In, during use, the lubricating oil in oil groove can be adsorbed on the gear teeth of driving gear 20, and along with the rotation of driving gear 20 is carried
To the upper end of driving gear 20, flow down the most under gravity, moistens driving gear 20 and corresponding bearing
Sliding, said structure is the lubrication system of low level gear.
The intracavity sidewall of housing 10 is in the position corresponding with the meshing point between output gear 40 and transition gear 30
Being provided with fueller, certainly, fueller can also be positioned at the position corresponding with the bottom of output gear 40.In this reality
Executing in example, fueller is atomizer 71, i.e. atomizer 71 is arranged between housing 10 and output gear 40 and transition gear 20
The corresponding position of meshing point.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, concrete spray angle needs the class according to actual atomizer 71
Type is configured, such as, can parabolically spray the atomizer of lubricating oil, now it is ensured that this parabolical terminal is positioned at output
Meshing point between gear 40 and transition gear 20, it may be preferable to be positioned on the flank of tooth upward of transition gear 20 corresponding teeth.With
Time, the direction of rotation of output gear 40 is lower extreme point the nibbling between output gear 40 and transition gear 30 from output gear 40
Chalaza is to the upper extreme point direction of output gear 40, such as, when above output gear 40 is positioned at the right side of transition gear 30, and output
The direction of rotation of gear 40 should be counterclockwise, otherwise, then the direction of rotation of output gear 40 should be clockwise.Use
Time, the lubricating oil of atomizer 71 ejection can adsorb on the gear teeth of output gear 40, and along with the rotation of output gear 40 is carried
The upper end of dynamic output gear 40, flow down the most under gravity, moistens 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 can be not only used in power takeoff, it is also possible to for it
In the gear-box of his type, as long as this gear-box includes the second gear, the first gear engaged successively, and the first gear is positioned at
Above the side of the second gear, concrete, fueller is set and is located at the position corresponding with the bottom of the first gear, with
Sample, fueller is preferably atomizer, and atomizer is arranged on corresponding with the meshing point between the first gear and the second gear
Position, the injection direction of atomizer is towards the meshing point between the first gear and the second gear, the rotation side of the first gear
To for from the lower extreme point of the first gear meshing point between the first gear and the second gear to the upper extreme point direction of the first gear.
It is further opened with groove on housing 10, forms shoe cream room 72 between groove and bearing (ball) cover 33, fill in shoe cream room 72
Lubricating oil, and be positioned at the lower section of atomizer 71, it is simple to shoe cream room 72 is accepted and dripped from atomizer 71 or atomizer 71 is injected in defeated
Go out the lubricating oil reflecting 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, the opening of lubrication channel 73 one end is connected towards bearing 32, the other end with shoe cream room 72.At the present embodiment
In, lubrication channel 73 towards the opening up layout of one end of bearing 32 and between two bearings 32, shoe cream room 72 simultaneously
Interior lubricating oil liquid level 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 is at liquid
Can overflow from lubrication channel 73 towards the opening of bearing 32 one end under pressure effect, bearing 32 is lubricated, overflows to axle simultaneously
Hold the lubricating oil on 32 also can on transition wheel shaft 31, transition wheel shaft 31 be lubricated by flow down under gravity, on
State structure and be storage type lubrication system.
Preferably, for above-mentioned storage type lubrication system, it is also possible to be respectively arranged with in two bearings 32 side in opposite directions
Be set in the baffle ring on transition wheel shaft 31, lubrication channel 73 towards the opening of one end of bearing 32 between two baffle rings, 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 overflows to bearing 32 enter bearing 32 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 this lubrication system not only lubricant effect is preferable, and has certain radiating effect,
The heat that i.e. pinion rotation produces can be pulled away along with the flowing of lubricating oil.
Embodiment two.
The present embodiment provides the transmission connecting structure of a kind 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, concrete, this structure include gear and with this tooth
The power transmission shaft that is in transmission connection of wheel, and arrange on this gear and coaxial with this gear have the first splined hole.
This structure also includes elastomer, and this elastomer is provided with the first spline coordinated with the first splined hole, this elasticity
Being further opened with the second splined hole on body, power transmission shaft is provided with the second spline coordinated with the second splined hole, the first spline interts
In the first splined hole, the second spline is interspersed in the second splined hole, and assembling backgear, elastomer and power transmission shaft are the most coaxial
Arrange.Interference fits or interference is used to join 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
Connecing, assembling is preferable, and the cushioning effect of elastomer can reduce spline and the high frequency strenuous vibration of splined hole generation, output characteristics
The most steady, elastomer is interspersed in gear by the first spline by being arranged on elastomer in addition, and structure is the compactest.
Above in conjunction with accompanying drawing, the present invention is described in detail, but embodiments of the present invention are not limited in above-mentioned
Embodiment, the present invention can be made various deformation according to prior art by those skilled in the art, as by embodiment one
Atomizer 71 is changed to other fuellers etc., and these broadly fall into protection scope of the present invention.
Claims (6)
1. a power takeoff for compact conformation, the driving gear including housing and being arranged in described housing and engaging successively,
Transition gear and output gear, it is characterised in that also include bolt, described driving gear offers perforation, described spiral shell respectively
Bolt is interspersed in described perforation, and the two ends of described bolt are connected with flywheel and the bent axle of electromotor respectively.
2. the power takeoff of compact conformation as claimed in claim 1, it is characterised in that described in be perforated with five, wear described in five
Hole centered by the axis of described driving gear circumference on described driving gear.
3. the power takeoff of compact conformation as claimed in claim 1, it is characterised in that also include alignment pin, described driving gear
On offer location hole, described alignment pin is interspersed in hole, described location, and the two ends of described alignment pin are respectively interposed and are starting
On the flywheel of machine and bent axle.
4. the power takeoff of the compact conformation as described in any claim in claim 1-3, it is characterised in that also include elasticity
Body, described output gear is provided with the first splined hole, and described elastomer is provided with coordinated with described first splined hole
One spline, described elastomer is further opened with the second splined hole coordinated with the power transmission shaft of plunger displacement pump or hydraulic pump, and described first
Spline is interspersed in described first splined hole, and described output gear, described first splined hole and described second splined hole are mutually same
Axle is arranged.
5. the power takeoff of compact conformation as claimed in claim 4, it is characterised in that described first splined hole and/or described the
Two splined holes have involute spline.
6. the power takeoff of compact conformation as claimed in claim 4, it is characterised in that described first spline and described first spline
Matched in clearance, interference fits or interference fit is used between hole and between described second spline and described second splined hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697236.4A CN106224507A (en) | 2016-08-20 | 2016-08-20 | A kind of power takeoff of compact conformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697236.4A CN106224507A (en) | 2016-08-20 | 2016-08-20 | A kind of power takeoff of compact conformation |
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| CN106224507A true CN106224507A (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610697236.4A Pending CN106224507A (en) | 2016-08-20 | 2016-08-20 | A kind of power takeoff of compact conformation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109812568A (en) * | 2019-02-01 | 2019-05-28 | 泉州鑫豪工程机械科技有限公司 | The installation method of power takeoff shell and power takeoff and power takeoff |
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| CN203189999U (en) * | 2013-04-22 | 2013-09-11 | 浙江三工汽车零部件有限公司 | Oil pump |
| CN103303139A (en) * | 2013-07-01 | 2013-09-18 | 潍柴动力股份有限公司 | Power take-off |
| CN103742604A (en) * | 2014-01-13 | 2014-04-23 | 西北工业大学 | Elastic shaft uniform load device with adjustable phase positions |
| CN203742775U (en) * | 2014-02-08 | 2014-07-30 | 潍柴动力股份有限公司 | Rear power take-off device of diesel engine |
| CN205937750U (en) * | 2016-08-20 | 2017-02-08 | 泉州鑫豪工程机械科技有限公司 | Compact structure's power takeoff |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109812568A (en) * | 2019-02-01 | 2019-05-28 | 泉州鑫豪工程机械科技有限公司 | The installation method of power takeoff shell and power takeoff and power takeoff |
| CN109812568B (en) * | 2019-02-01 | 2024-05-03 | 泉州鑫豪工程机械科技有限公司 | Power takeoff housing, power takeoff and installation method of power takeoff |
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