CN104675956B - Electric motor car compound gear - Google Patents
Electric motor car compound gear Download PDFInfo
- Publication number
- CN104675956B CN104675956B CN201510093672.6A CN201510093672A CN104675956B CN 104675956 B CN104675956 B CN 104675956B CN 201510093672 A CN201510093672 A CN 201510093672A CN 104675956 B CN104675956 B CN 104675956B
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- Prior art keywords
- gear
- axle sleeve
- double wedge
- annular
- oil
- Prior art date
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 43
- 229920003023 plastic Polymers 0.000 claims abstract description 43
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000007769 metal material Substances 0.000 claims abstract description 7
- 230000008093 supporting effect Effects 0.000 claims abstract description 4
- 239000006071 cream Substances 0.000 claims description 41
- 239000003921 oil Substances 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 14
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 description 13
- 238000005461 lubrication Methods 0.000 description 13
- 239000007789 gas Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 230000001976 improved effect Effects 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 4
- 230000004323 axial length Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/06—Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/14—Construction providing resilience or vibration-damping
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Gears, Cams (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of electric motor car compound gear, it is desirable to provide one not only has preferable intensity；And there is the electric motor car compound gear of preferable vibration damping, noise reduction.Gear body that it includes plastic material and the gear skeleton of metal material being embedded in gear body；Described gear skeleton includes axle sleeve, the annular brace end plate being circumferentially positioned on axle sleeve lateral surface and some the first connection posts being arranged on supporting base end portion, the endoporus of axle sleeve constitutes gear shaft holes, described annular brace end plate and the axis perpendicular of axle sleeve, first connects post parallels with the axis of axle sleeve, and each first to connect post uniform around axle sleeve circumference, axle sleeve and each first connects post and being embedded in gear body；The outer peripheral face of gear body is provided with the plastics double wedge that some circumferences are uniform, and the outer peripheral face of annular brace end plate is provided with the metal double wedge that some circumferences are uniform, and described plastics double wedge constitutes the complete gear teeth with metal double wedge one_to_one corresponding.
Description
Technical field
The present invention relates to a kind of gear, be specifically related to a kind of electric motor car compound gear.
Background technology
At present, the gear being used in electric motor car mainly has two kinds, and a kind of is the gear of metal material, and another kind is plastics materials
The gear of matter；Wherein the gear feature of metal material is that intensity is high, but its hardness is high, and vibration damping, noise reduction are the best, make an uproar during work
Sound；The gear hardness of plastic material is low, and it has preferable vibration damping, noise reduction, but its intensity is little.
On the other hand, the mode of lubricating system many employings external dressing of current electric motor car gear, will lubricate
Oil adds gear surface to and is lubricated gear, such as: lubricating oil (is dropped to friction in pairs surface) by drip lubrication, flies
Spatter lubrication (lubricant is splashed to friction in pairs surface), oil jet lubrication, flooding system lubrication etc..Current this employing external dressing
The gear lubrication mode of lubrication, once lubricating system fault or lubricating system fluid are not enough or because of other reasons, cause gear train
In operative gear when the most enough being lubricated, then the gear of insufficient lubrication can be caused the biggest damage, reduce gear
Service life.
Summary of the invention
The first object of the present invention is to overcome deficiency of the prior art, it is provided that one not only has the strongest
Degree；And there is the electric motor car compound gear of preferable vibration damping, noise reduction.
It is another object of the present invention to overcome in prior art not enough, it is provided that one can be effectively improved because of lubricating system
The reasons such as fault or lubricating system fluid are not enough, cause gear lubrication bad, reduce problem electronic in gear shaft service life
Car compound gear.
The technical scheme is that
A kind of electric motor car compound gear, including the gear body of plastic material and the metal material that is embedded in gear body
Gear skeleton；Described gear skeleton includes axle sleeve, the annular brace end plate that is circumferentially positioned on axle sleeve lateral surface and some set
Putting the first connection post on supporting base end portion, the endoporus of described axle sleeve constitutes gear shaft holes, described annular brace end plate and axle sleeve
Axis perpendicular, described first connect post parallels with the axis of axle sleeve, and each first connection post uniform around axle sleeve circumference, institute
State axle sleeve and each first connection post is embedded in gear body；It is uniform that the outer peripheral face of described gear body is provided with some circumferences
Plastics double wedge, the outer peripheral face of described annular brace end plate is provided with the metal double wedge that some circumferences are uniform, described plastics double wedge with
Metal double wedge one_to_one corresponding constitutes the complete gear teeth.
This programme compound gear is by the gear body of plastic material and the gear bone of metal material that is embedded in gear body
It is configured to, and the gear teeth of compound gear are made up of with metal double wedge one_to_one corresponding plastics double wedge；Wherein plastics double wedge vibration damping, fall
Making an uproar effective, in work process, noise is little, and metal double wedge intensity is high, thus this programme compound gear not only has the strongest
Degree；And there is preferable vibration damping, noise reduction.
As preferably, each metal double wedge is provided with the first through hole that the axis with axle sleeve is paralleled, and is embedded in the first through hole
There is the second connection post of plastic material, and second connects post and gear body integrated injection molding.This programme structure carries further
High gear body and the bonding strength of gear skeleton.
As preferably, first connects post lateral surface is provided with some annular grooves or annular protrusion.This programme structure is further
Improve the bonding strength of gear body and gear skeleton.
As preferably, axle sleeve, annular brace end plate and each first connects post and is formed in one structure.
As preferably, axle sleeve, each first connection post and gear body are positioned at the same side of annular brace end plate.
As preferably, in each plastics double wedge, at least a plastics double wedge is provided with self-lubricating device, this self-lubricating device
Including the shoe cream room being arranged in plastics double wedge, the self-adapting stretching device being arranged in shoe cream room and being arranged in gear body
Oil leab；One end of described oil leab is connected with shoe cream room, and the other end is adjacent with shoe cream room place plastics double wedge
Teeth groove is connected；Described self-adapting stretching device includes the fixing sleeve being arranged in shoe cream room and is slidably arranged on fixed cover
Slip body in Tong, described fixing sleeve is fixed on shoe cream room inwall, and one end of fixing sleeve is closed, other end opening；
Being provided with the first sealing ring between described fixing sleeve medial surface and slip cap outside, one end of slip body is closed, another
End opening, and the opening of slip body closes towards the end seal of fixing sleeve；Formed between described fixing sleeve and slip body
Airtight telescopic cavity, fills gas in this telescopic cavity；Lubricating oil is filled in described shoe cream room.
The self-lubricating device of this programme utilize the coefficient of cubical expansion of gas much larger than lubricating oil the coefficient of cubical expansion；
At gear in the course of the work, if the reason such as lubricating system fault or lubricating system fluid deficiency occurs, cause gear lubrication not
Good, when making gear teeth temperature quickly raise (such as cone pulley tooth temperature quickly raises tens degree)；Filling in this programme telescopic cavity
When gases are heated, they expand, makes the oil pressure in shoe cream room increase, thus by oil leab, the lubricating oil in shoe cream room is forced into tooth
Rooved face, and be gradually distributed on the flank of tooth in pinion rotation and engagement process, it is effectively improved the lubricant effect of gear teeth face；From
And it is effectively improved because of reasons such as lubricating system fault or lubricating system fluid deficiencies, make gear lubrication bad, reduce gear and use
The problem in life-span.
As preferably, self-lubricating device also includes oil leab automatic opening-closing, this oil leab automatic opening-closing
Including the installing hole in the bottom land being arranged on gear body, the valve pocket being arranged in installing hole and be slidably arranged on valve pocket
Interior piston body；The teeth groove at described installing hole place and the plastics double wedge adjacent distributions at shoe cream room place；The two ends of described valve pocket
Opening, is provided with grid barrier in valve pocket, valve pocket medial surface is provided with first annular projection and the second annular protrusion, first annular convex
Rise, the second annular protrusion and installing hole bottom surface are positioned at the same side of grid barrier, and first annular projection is near installing hole bottom surface,
Second bottom surface, annular protrusion remotely mounted hole；Piston body between first and second annular protrusion, in valve pocket, be positioned at grid every
The first compression spring that piston body can be made to be resisted against in first annular projection it is provided with between plate and piston body；Described valve pocket and installation
Being provided with second and third sealing ring between hole, on installing hole medial surface, to be provided with annular between sealing ring second and the 3rd recessed
Groove, is provided with the oil-through hole of through valve pocket lateral surface on described valve pocket medial surface, between first and second annular protrusion, the most oily
Hole is second and the 3rd between sealing ring, and the opening of this oil-through hole and annular groove is just to setting；When piston body is resisted against
Time in first annular projection, described oil-through hole and the second annular protrusion are positioned at piston body the same side；When piston body is resisted against second
Time on annular protrusion, described oil-through hole and first annular projection are positioned at piston body the same side；Described oil leab includes that oil-feed is led to
Road and oil discharge passage, one end of oil inlet passage communicates with shoe cream room, and the other end communicates with the bottom surface of installing hole, described oil discharge passage
One end communicate with annular groove, the other end communicates with the bottom land at installing hole place.
The oil leab automatic opening-closing of this programme structure normally can work (i.e. oil storage not affecting self-lubricating device
The oil pressure of intracavity increases, and lubricating oil is forced into gullet surface by oil leab) on the premise of；It is prevented effectively from gear in normal work
In the case of work, the problem that the lubricating oil in shoe cream room is flowed out by gravity or centrifugal forces affect.
As preferably, it can be the pump nozzle of shoe cream room fuel feeding that the end face of gear body is provided with.
As preferably, the material of gear body is PVC or POM or PTFE or nylon.
As preferably, gear body and each plastics double wedge are formed in one structure, described annular brace end plate and each metal
Double wedge is formed in one structure.
The invention has the beneficial effects as follows:
One, not only has preferable intensity；And there is preferable vibration damping, noise reduction.
Its two, can be effectively improved because of reasons such as lubricating system fault or lubricating system fluid are not enough, cause gear lubrication not
Problem that is good, that reduce gear shaft service life.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional view of the electric motor car compound gear of the present invention.
Fig. 2 is A direction view in Fig. 1.
Fig. 3 is a kind of structural representation of the gear body of the present invention.
Fig. 4 is a kind of structural representation of the gear skeleton of the present invention.
Fig. 5 is the part section structural representation of the gear body of the present invention.
Fig. 6 is the part section structural representation in Fig. 5 at B-B.
Fig. 7 is the enlarged drawing in Fig. 5 at C.
In figure: gear body 1, second connects post 11, plastics double wedge 12, teeth groove 13, the first gear 2, gear skeleton 2, ring
Shape support end plate 21, metal double wedge 22, axle sleeve the 23, first connection post 24, annular groove the 25, first through hole 26, the gear teeth 3,
Self-lubricating device 4, shoe cream room 41, self-adapting stretching device 42, fixing sleeve 42a, slip body 42b, seal plug
Head 42c, telescopic cavity 42d, oil leab 43, oil inlet passage 43a, oil discharge passage 43b, oil leab automatic opening-closing 44,
Envelope hides end plate 45, pump nozzle 45a, grid barrier 46, valve pocket the 47, second sealing ring the 48, first compression spring the 49, second convex annular
Play 410, piston body 411, annular groove the 142, the 3rd sealing ring 413, first annular protruding 414, oil-through hole 415.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of electric motor car compound gear includes the gear body 1 of plastic material and pre-buried
The gear skeleton 2 of the metal material in gear body.Gear body is made by injection mo(u)lding.The material of gear body is PVC
Or POM or PTFE or nylon.Gear skeleton includes axle sleeve 23, the annular brace end plate 21 that is circumferentially positioned on axle sleeve lateral surface and
The first connection post 24 that the six roots of sensation is arranged on supporting base end portion.The endoporus of axle sleeve constitutes gear shaft holes.Annular brace end plate and axle sleeve
Axis perpendicular.First connects post parallels with the axis of axle sleeve, and each first connection post is uniform around axle sleeve circumference.First even
Connect post lateral surface and be provided with some annular grooves 25 or annular protrusion.Axle sleeve and each first connects post and is embedded in gear body.
The outer peripheral face of gear body is the face of cylinder.The outer peripheral face of gear body is provided with the plastics double wedge that some circumferences are uniform
12.The outer peripheral face of annular brace end plate is the face of cylinder.The outer peripheral face of annular brace end plate is provided with the metal that some circumferences are uniform
Double wedge 22.Each plastics double wedge constitutes the complete gear teeth 3 with each metal double wedge one_to_one corresponding.
Each metal double wedge is provided with the first through hole 26 that the axis with axle sleeve is paralleled.Plastics material it is embedded with in first through hole
Second connection post 11 of matter, and the second connection post and gear body integrated injection molding.Axle sleeve, each first connects post and gear master
Body is positioned at the same side of annular brace end plate.Gear body and each plastics double wedge are formed in one structure.Axle sleeve, annular brace end
Plate and each first connects post and is formed in one structure.Annular brace end plate and each metal double wedge are formed in one structure.
As shown in Figure 5, Figure 6, in each plastics double wedge, at least a plastics double wedge is provided with self-lubricating device, the present embodiment
In each plastics double wedge has the plastics double wedge of half to be provided with self-lubricating device, and this partly plastic double wedge is spaced apart.From profit
Sliding device includes the shoe cream room 41 being arranged in plastics double wedge, the self-adapting stretching device 42 being arranged in shoe cream room, is arranged on
Oil leab 43 in gear body and oil leab automatic opening-closing 44.Shoe cream room is the circle that the axis with axle sleeve is paralleled
Cylindrical cavities.One end of shoe cream room extends toward the direction away from metal double wedge, and forms opening on the end face of plastics double wedge, and
It is provided with envelope in this opening and hides end plate 45.It can be the pump nozzle of shoe cream room fuel feeding that the end face of gear body is provided with, specifically, and envelope
Hiding end plate and be provided with can be the pump nozzle 45a of shoe cream room fuel feeding.
Self-adapting stretching device includes the fixing sleeve 42a being arranged in shoe cream room and is slidably arranged in fixing sleeve
Slip body 42b.Fixing sleeve and slip body are cylindrically.Fixing sleeve and slip body are by the metal of good heat conductivity
Material is made, such as, be made up of copper or copper alloy or aluminum or aluminum alloy material.Fixing sleeve and slip body and the second gear
Axis is parallel.One end of fixing sleeve is closed, other end opening.Fixing sleeve is fixed on the inner face of shoe cream room, specifically
Saying and be, the blind end of fixing sleeve is fixed on shoe cream room inner face, and fixing sleeve is paralleled with the axis of axle sleeve.Fixed cover
The opening of cylinder and envelope hide the axial length being smaller than fixing sleeve between end plate.The axial length of slip body is more than solid
Determine the axial length of sleeve.Fix and between sleeve medial surface and slip cap outside, be provided with the first sealing ring.Slip body
One end closing, other end opening, and the opening of slip body close towards the end seal of fixing sleeve.The blind end of slip body
Outer face is provided with inducing QI through hole.Threaded seal plug 42c it is provided with in this inducing QI through hole.Fixing sleeve and slip body
Between form airtight telescopic cavity 42d.Gas is filled in this telescopic cavity；This filling gas is air or nitrogen or indifferent gas
Body.Lubricating oil is filled in shoe cream room.
As shown in Figure 5, Figure 7, oil leab automatic opening-closing includes being arranged on teeth groove 13 bottom surface of gear body
Installing hole, the valve pocket 47 being arranged in installing hole and the piston body 411 being slidably arranged in valve pocket.Same self-lubricating device
The teeth groove at installing hole place and the plastics double wedge adjacent distributions at shoe cream room place.Installing hole is circular hole.Valve pocket is cylindrically.Install
Hole is coaxial with valve pocket.Valve pocket is connected with installing hole by screw thread.The both ends open of valve pocket.Grid barrier 46 it is provided with in valve pocket.
Valve pocket medial surface is provided with first annular protruding 414 and second annular protrusion 410.First annular projection, the second annular protrusion and
Installing hole bottom surface is positioned at the same side of grid barrier, and first annular projection is near installing hole bottom surface, the second annular protrusion away from
Installing hole bottom surface.Piston body is between first and second annular protrusion.In valve pocket, set between grid barrier and piston body
There is the first compression spring 49 that piston body can be made to be resisted against in first annular projection.Second and it is provided with between valve pocket and installing hole
Three sealing rings 48,413.On installing hole medial surface, it is provided with annular groove 412 second and the 3rd between sealing ring.In valve pocket
The oil-through hole 415 of through valve pocket lateral surface it is provided with on side, between first and second annular protrusion.Oil-through hole is positioned at second
And between the 3rd sealing ring, and the opening of this oil-through hole and annular groove is just to setting.When piston body is resisted against first annular convex
When rising upper, described oil-through hole and the second annular protrusion are positioned at piston body the same side.When piston body is resisted against on the second annular protrusion
Time, described oil-through hole and first annular projection are positioned at piston body the same side.Oil leab includes oil inlet passage 43a and oil discharge passage
43b。
One end of oil leab is connected with shoe cream room, teeth groove 33 phase that the other end is adjacent with shoe cream room place plastics double wedge
Connection；Specifically, one end of oil inlet passage communicates with shoe cream room, and the other end communicates with the bottom surface of installing hole.Oil discharge passage
One end communicates with annular groove, and the other end communicates with the bottom land at installing hole place.
At gear in the course of the work, if the reason such as lubricating system fault or lubricating system fluid deficiency occurs, tooth is caused
During wheel insufficient lubrication, when making gear teeth temperature quickly raise, when gases are heated, they expand for the filling in telescopic cavity, makes the oil in shoe cream room
Pressure increases, thus is forced in teeth groove by oil leab by the lubricating oil in shoe cream room, and in pinion rotation and engagement process
In be gradually distributed on the flank of tooth, be effectively improved the lubricant effect of gear teeth face.When gear lubrication is effect improved, gear temperature reduces
After, the filling contraction of gas in telescopic cavity, reduces the oil pressure in shoe cream room, reduces or stop fuel-displaced.
Claims (8)
1. an electric motor car compound gear, is characterized in that, including the gear body of plastic material and be embedded in gear body
The gear skeleton of metal material；Described gear skeleton includes axle sleeve, the annular brace end plate being circumferentially positioned on axle sleeve lateral surface
And some the first connection posts being arranged on supporting base end portion, the endoporus of described axle sleeve constitutes gear shaft holes, described annular brace end
Plate and the axis perpendicular of axle sleeve, described first connects post parallels with the axis of axle sleeve, and each first connects post around axle sleeve week
To uniform, described axle sleeve and each first connects post and is embedded in gear body；The outer peripheral face of described gear body is provided with some
The plastics double wedge that circumference is uniform, the outer peripheral face of described annular brace end plate is provided with the metal double wedge that some circumferences are uniform, described
Plastics double wedge constitutes the complete gear teeth with metal double wedge one_to_one corresponding；
Gear body and each plastics double wedge are formed in one structure, and described annular brace end plate is formed in one with each metal double wedge
Structure；
In each plastics double wedge, at least a plastics double wedge is provided with self-lubricating device, and this self-lubricating device includes being arranged on plastics
Shoe cream room in double wedge, the self-adapting stretching device being arranged in shoe cream room and the oil leab being arranged in gear body；Institute
The one end stating oil leab is connected with shoe cream room, and the teeth groove that the other end is adjacent with shoe cream room place plastics double wedge is connected；Institute
State fixing sleeve that self-adapting stretching device includes being arranged in shoe cream room and be slidably arranged on the slip cap in fixing sleeve
Body, described fixing sleeve is fixed on shoe cream room inwall, and one end of fixing sleeve is closed, other end opening；Described fixing sleeve
Being provided with the first sealing ring between medial surface and slip cap outside, one end of slip body is closed, other end opening, and slides
The opening of body closes towards the end seal of fixing sleeve；Airtight telescopic cavity is formed between described fixing sleeve and slip body
Body, fills gas in this telescopic cavity；Lubricating oil is filled in described shoe cream room.
Electric motor car compound gear the most according to claim 1, is characterized in that, each metal double wedge is provided with the axis with axle sleeve
The first parallel through hole, is embedded with the second connection post of plastic material in the first through hole, and second connects post and gear body
Integrated injection molding.
Electric motor car compound gear the most according to claim 1, is characterized in that, described first connects post lateral surface is provided with some
Annular groove or annular protrusion.
4., according to the electric motor car compound gear described in claim 1 or 2 or 3, it is characterized in that, described axle sleeve, annular brace end plate
And each first connect post and be formed in one structure.
5. according to the electric motor car compound gear described in claim 1 or 2 or 3, it is characterized in that, described axle sleeve, each first connects post
And gear body is positioned at the same side of annular brace end plate.
Electric motor car compound gear the most according to claim 1, is characterized in that, described self-lubricating device also includes oil leab
Automatic opening-closing, this oil leab automatic opening-closing includes the installing hole being arranged in the bottom land of gear body, if
Put the valve pocket in installing hole and be slidably arranged on the piston body in valve pocket；The teeth groove at described installing hole place and shoe cream room institute
Plastics double wedge adjacent distributions；The both ends open of described valve pocket, is provided with grid barrier in valve pocket, valve pocket medial surface is provided with
One annular protrusion and the second annular protrusion, first annular projection, the second annular protrusion and installing hole bottom surface are positioned at grid barrier
The same side, and first annular projection is near installing hole bottom surface, the second bottom surface, annular protrusion remotely mounted hole；Piston body is positioned at first
And between the second annular protrusion, in valve pocket, it is provided with between grid barrier and piston body piston body can be made to be resisted against the first ring
The first compression spring in shape projection；Second and third sealing ring, installing hole medial surface it is provided with between described valve pocket and installing hole
Upper, be provided with annular groove second and the 3rd between sealing ring, on described valve pocket medial surface, be positioned at first and second convex annular
Be provided with the oil-through hole of through valve pocket lateral surface between Qiing, oil-through hole second and the 3rd between sealing ring, and this oil-through hole with
The opening of annular groove is just to setting；When piston body is resisted against in first annular projection, described oil-through hole and the second convex annular
Rise and be positioned at piston body the same side；When piston body is resisted against on the second annular protrusion, described oil-through hole and first annular protruding position
In piston body the same side；Described oil leab includes oil inlet passage and oil discharge passage, and one end of oil inlet passage communicates with shoe cream room,
The other end communicates with the bottom surface of installing hole, and one end of described oil discharge passage communicates with annular groove, the other end and installing hole place
Bottom land communicate.
Electric motor car compound gear the most according to claim 1, is characterized in that, the end face of described gear body is provided with and can be
The pump nozzle of shoe cream room fuel feeding.
8. according to the electric motor car compound gear described in claim 1 or 2 or 3, it is characterized in that, the material of described gear body is
PVC or POM or PTFE or nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093672.6A CN104675956B (en) | 2015-03-02 | 2015-03-02 | Electric motor car compound gear |
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| CN201510093672.6A CN104675956B (en) | 2015-03-02 | 2015-03-02 | Electric motor car compound gear |
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| CN104675956A CN104675956A (en) | 2015-06-03 |
| CN104675956B true CN104675956B (en) | 2017-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108518470A (en) * | 2018-03-02 | 2018-09-11 | 无锡麻德克斯精机有限公司 | A kind of gear structure |
| CN109608784A (en) * | 2018-11-23 | 2019-04-12 | 余姚市宇洲电器有限公司 | A kind of preparation method of plastic gear igelite |
| CN110219974B (en) * | 2019-07-05 | 2024-08-06 | 青岛港国际股份有限公司 | Lubricating device for horizontal rotation large gear ring tooth column |
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| DE2450782A1 (en) * | 1974-10-25 | 1976-05-06 | Hurth Masch Zahnrad Carl | Gear wheel made from compound material - has metal main body and plastic outer rim |
| JP2005207444A (en) * | 2004-01-20 | 2005-08-04 | Mitsubishi Heavy Ind Ltd | Cam shaft |
| CN201288806Y (en) * | 2008-11-06 | 2009-08-12 | 张宏艳 | Compound gear |
| JP2009250353A (en) * | 2008-04-07 | 2009-10-29 | Jtekt Corp | Composite gear manufacturing method and composite gear manufactured by the same method |
| CN201526659U (en) * | 2009-10-14 | 2010-07-14 | 武汉三五零六纺织服装总厂 | Transmission gear of roving frame |
| CN202992106U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Gear and engine using same |
| CN103470727A (en) * | 2013-08-15 | 2013-12-25 | 宁波市鄞州恒泰机电有限公司 | Transmission gear for electric motor bicycle |
| CN204493641U (en) * | 2015-03-02 | 2015-07-22 | 盐城工学院 | A kind of electric vehicle compound gear |
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2015
- 2015-03-02 CN CN201510093672.6A patent/CN104675956B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2450782A1 (en) * | 1974-10-25 | 1976-05-06 | Hurth Masch Zahnrad Carl | Gear wheel made from compound material - has metal main body and plastic outer rim |
| JP2005207444A (en) * | 2004-01-20 | 2005-08-04 | Mitsubishi Heavy Ind Ltd | Cam shaft |
| JP2009250353A (en) * | 2008-04-07 | 2009-10-29 | Jtekt Corp | Composite gear manufacturing method and composite gear manufactured by the same method |
| CN201288806Y (en) * | 2008-11-06 | 2009-08-12 | 张宏艳 | Compound gear |
| CN201526659U (en) * | 2009-10-14 | 2010-07-14 | 武汉三五零六纺织服装总厂 | Transmission gear of roving frame |
| CN202992106U (en) * | 2012-12-26 | 2013-06-12 | 潍柴动力股份有限公司 | Gear and engine using same |
| CN103470727A (en) * | 2013-08-15 | 2013-12-25 | 宁波市鄞州恒泰机电有限公司 | Transmission gear for electric motor bicycle |
| CN204493641U (en) * | 2015-03-02 | 2015-07-22 | 盐城工学院 | A kind of electric vehicle compound gear |
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| CN104675956A (en) | 2015-06-03 |
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