CN108999969A - A kind of reduction gearbox configured with halting mechanism - Google Patents
A kind of reduction gearbox configured with halting mechanism Download PDFInfo
- Publication number
- CN108999969A CN108999969A CN201811063324.4A CN201811063324A CN108999969A CN 108999969 A CN108999969 A CN 108999969A CN 201811063324 A CN201811063324 A CN 201811063324A CN 108999969 A CN108999969 A CN 108999969A
- Authority
- CN
- China
- Prior art keywords
- briquetting
- gear
- park pawl
- pawl
- shaft
- 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
Links
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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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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
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3425—Parking lock mechanisms or brakes in the transmission characterised by pawls or wheels
- F16H63/3433—Details of latch mechanisms, e.g. for keeping pawls out of engagement
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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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3458—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire
- F16H63/3466—Parking lock mechanisms or brakes in the transmission with electric actuating means, e.g. shift by wire using electric motors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Gear Transmission (AREA)
Abstract
The present invention provides a kind of reduction gearboxes configured with halting mechanism, including shell, input gear and output gear, parking ratchet wheel is set on output gear shaft, parking ratchet wheel side is provided with park pawl, the rotation of park pawl end is connected with pawl shaft and is provided with return spring, and park pawl and parking ratchet wheel is made to keep discrete state；Manipulation component is provided on the outside of park pawl, including controlling shaft, control shaft end is set with the first briquetting and the second briquetting, first briquetting and control shaft rotation connect, second briquetting and control shaft are cooperatively connected, and the upper end of the first briquetting and the second briquetting is fixedly connected, and the second briquetting leading flank is provided with block, block is against the lower end of the first briquetting, and the first briquetting outer end is contacted with the locking end lateral surface of park pawl.Reduction gearbox provided by the invention configured with halting mechanism, halting mechanism structure is simple, at low cost, high reliablity, occupies little space, and is conducive to the size for reducing reduction gearbox.
Description
Technical field
That the present invention relates to a kind of reduction gearboxes more particularly to a kind of structure is simple, at low cost, occupy little space configured with staying
The reduction gearbox of mechanism of car.
Background technique
Reduction gearbox is also referred to as retarder, is one kind by being enclosed in the intracorporal gear drive of rigid crust, worm-drive, gear-
Individual components composed by worm-drive, the speed reduction gearing being commonly used between driving link and working machine.In reduction gearbox usually
It is provided with halting mechanism, also referred to as parking locking mechanism, according to driving method difference, parking locking mechanism has purely mechanic drive-type
Lockable mechanism and electric gas/liquid pressure drive-type parking locking mechanism；According to locking element difference, parking locking mechanism can be divided into taper locks
Only class lockable mechanism and roller class lockable mechanism.Wherein, electric gas/liquid pressure drive-type parking locking mechanism infrastructure cost is higher, and needs
Bowden wire is installed；It is complex in cone-lock class lockable mechanism structure.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of deceleration configured with halting mechanism
Case, halting mechanism structure is simple, at low cost, high reliablity.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of reduction gearbox configured with halting mechanism, including shell, input gear and output gear, the output gear
Parking ratchet wheel is set on output gear shaft, the side of the parking ratchet wheel is provided with matched park pawl, the parking spine
The end rotation of pawl is connected with pawl shaft, and the pawl shaft is fixedly mounted on the housing, and the end of the park pawl is set
It is equipped with return spring, one end of the return spring is fixedly connected with the shell, and the other end of the return spring is against described
In park pawl, the park pawl and parking ratchet wheel is made to keep discrete state；Manipulation is provided on the outside of the park pawl
Component, the manipulation component include control shaft, and the front end of the control shaft is connected with parking-driving mechanism, and the control turns
The tip of the axis is successively set with the first briquetting and the second briquetting disposed in parallel, and first briquetting and the control shaft rotate
Connection, second briquetting are cooperatively connected with the control shaft by non-cylindrical hole axle, first briquetting and the second pressure
The upper end of block is provided with to be relatively fixed and bar and is fixedly connected by spring, and the leading flank of second briquetting is provided with block,
The block is against the lower end of first briquetting, the locking end of the outer end and park pawl of first briquetting
Outside face contact.
Further, the locking end of the park pawl is provided with roller, and the roller is outer with first briquetting
End contact.
Further, the outer end of the lateral surface of the locking end of the park pawl and first briquetting is provided with
Wear-resistant coating.
It further, further include intermediate gear shaft, the front end axial plane gear and the output gear of the intermediate gear shaft
Engagement, the intermediate gear the tip of the axis are set with intermediate gear, and the intermediate gear is engaged with the input gear, described defeated
Enter gear, intermediate gear, axial plane gear and output gear and is all made of elongated tooth Shape Design.
A kind of reduction gearbox configured with halting mechanism of the present invention, halting mechanism structure is simple, at low cost, high reliablity, accounts for
It is small with space, be conducive to the size for reducing reduction gearbox, meanwhile, the gear of reduction gearbox has carried out Optimization of Tooth Form, and gear is overlapped
Degree is high.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the stereoscopic schematic diagram of halting mechanism in the present invention；
Fig. 2 is the schematic front view of halting mechanism lock state in the present invention；
Fig. 3 is the schematic front view of halting mechanism unlocked state in the present invention；
Fig. 4 is the schematic diagram of middle gear part of the present invention.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment 1
As shown in Figs 1-4, a kind of reduction gearbox configured with halting mechanism, including shell (being not drawn into figure), input gear 1
With output gear 2, parking ratchet wheel 3 is set on the output gear shaft of output gear 2, the side of parking ratchet wheel 3 is provided with matching
Park pawl 4, park pawl 4 end rotation is connected with pawl shaft 5, pawl shaft 5 is fixedly mounted on shell, park pawl
4 end is provided with return spring 6, and one end of return spring 6 is fixedly connected with shell, and the other end of return spring 6 is against parking
On pawl 4, park pawl 4 and parking ratchet wheel 3 is made to keep discrete state；The outside of park pawl 4 is provided with manipulation component, manipulation
Component includes control shaft 7, and the front end of control shaft 7 is connected with parking-driving mechanism (being not drawn into figure), controls the end of shaft 7
End is successively set with the first briquetting 8 disposed in parallel and the second briquetting 9, and the first briquetting 8 is connected with the control rotation of shaft 7, and second
Briquetting 9 is cooperatively connected with control shaft 7 by non-cylindrical hole axle, and the upper end of the first briquetting 8 and the second briquetting 9 is provided with relatively
Fixed link and be fixedly connected by spring 10, the leading flank of the second briquetting 9 is provided with block 11, and block 11 is against the first briquetting
8 lower end, the outside face contact of the locking end of the outer end and park pawl 4 of the first briquetting 8.Using rotation brake mechanism,
Braking distance is short, occupies little space, and reduces the size of reduction gearbox, pure mechanic structure parking, high reliablity.
The locking end of park pawl 4 is provided with roller 12, and roller 12 is contacted with the outer end of the first briquetting 8.Reduce the
Frictionally damage between one briquetting and park pawl, prolongs the service life.
It further include intermediate gear shaft 13, the front end axial plane gear of intermediate gear shaft 13 is engaged with output gear 2, intermediate gear
The end of axis 13 is set with intermediate gear 14, and intermediate gear 14 is engaged with input gear 1, input gear 1, intermediate gear 14, axis
Face gear and output gear 2 are all made of elongated tooth Shape Design.Elongated tooth form has lower pressure angle and higher helical angle, energy
Enough improve the registration of gear.
Working principle:
Keep control shaft counterclockwise by controlling parking-driving mechanism (including driving motor and worm and gear speed-reduction apparatus)
About 60 ° (seeing along torque transfer direction) is rotated, the second pressure being fixedly connected with control shaft drives the rotation of the first briquetting by spring
Turn, the first briquetting and roller-contact simultaneously transfer torque to park pawl, overcome the aligning torque of return spring, make park pawl
Locking end is pressed into the tooth socket of parking ratchet wheel, if park pawl fails to snap into the tooth socket of parking ratchet wheel, but is pressed in
On the tooth top of ratchet, as long as vehicle slides slightly, under the resilient force of spring, park pawl still can be pressed into tooth socket
It is interior, to realize parking；Parking-driving mechanism makes shaft rotate clockwise about 60 ° (seeing along torque transfer direction), turns with control
The second briquetting that axis is fixedly connected drives the rotation of the first briquetting by the block of bottom, to make park pawl in return spring
Under aligning torque effect, tooth socket is popped up, realizes that parking releases.
Embodiment 2
The present embodiment the difference from embodiment 1 is that: the lateral surface of the locking end of park pawl 4 and the first briquetting 8
Outer end is provided with wear-resistant coating.The frictionally damage between the first briquetting and park pawl can be equally reduced, extends and uses
Service life.
A kind of reduction gearbox configured with halting mechanism of the present invention, halting mechanism structure is simple, at low cost, high reliablity, accounts for
It is small with space, be conducive to the size for reducing reduction gearbox, meanwhile, the gear of reduction gearbox has carried out Optimization of Tooth Form, and gear is overlapped
Degree is high.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of reduction gearbox configured with halting mechanism, it is characterised in that: described including shell, input gear and output gear
Parking ratchet wheel is set on the output gear shaft of output gear, the side of the parking ratchet wheel is provided with matched park pawl,
The end rotation of the park pawl is connected with pawl shaft, and the pawl shaft is fixedly mounted on the housing, the parking spine
The end of pawl is provided with return spring, and one end of the return spring is fixedly connected with the shell, the return spring it is another
End is against in the park pawl, and the park pawl and parking ratchet wheel is made to keep discrete state；
Manipulation component is provided on the outside of the park pawl, the manipulation component includes control shaft, the control shaft
Front end is connected with parking-driving mechanism, and the control turns the tip of the axis and is successively set with the first briquetting disposed in parallel and the second pressure
Block, first briquetting and control shaft rotation connect, and second briquetting and the control shaft pass through non-cylindrical
Hole axle is cooperatively connected, and the upper end of first briquetting and the second briquetting, which is provided with, to be relatively fixed bar and fix company by spring
It connects, the leading flank of second briquetting is provided with block, and the block is against the lower end of first briquetting, first briquetting
Outer end and the park pawl locking end outside face contact.
2. a kind of reduction gearbox configured with halting mechanism according to claim 1, it is characterised in that: the park pawl
Locking end is provided with roller, and the roller is contacted with the outer end of first briquetting.
3. a kind of reduction gearbox configured with halting mechanism according to claim 1, it is characterised in that: the park pawl
The outer end of the lateral surface of locking end and first briquetting is provided with wear-resistant coating.
4. a kind of reduction gearbox configured with halting mechanism according to claim 1, it is characterised in that: further include intermediate gear
The front end axial plane gear of axis, the intermediate gear shaft is engaged with the output gear, and the intermediate gear the tip of the axis is set with
Intermediate gear, the intermediate gear are engaged with the input gear, the input gear, intermediate gear, axial plane gear and output
Gear is all made of elongated tooth Shape Design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811063324.4A CN108999969A (en) | 2018-09-12 | 2018-09-12 | A kind of reduction gearbox configured with halting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811063324.4A CN108999969A (en) | 2018-09-12 | 2018-09-12 | A kind of reduction gearbox configured with halting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108999969A true CN108999969A (en) | 2018-12-14 |
Family
ID=64591149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811063324.4A Pending CN108999969A (en) | 2018-09-12 | 2018-09-12 | A kind of reduction gearbox configured with halting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108999969A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237454A (en) * | 2020-03-17 | 2020-06-05 | 精进电动科技股份有限公司 | Mechanical unlocking mechanism for electronic parking |
| CN111810631A (en) * | 2019-04-11 | 2020-10-23 | 广州汽车集团股份有限公司 | Parking device and transmission |
| CN115405690A (en) * | 2021-05-27 | 2022-11-29 | 长城汽车股份有限公司 | Parking mechanism and vehicle with same |
-
2018
- 2018-09-12 CN CN201811063324.4A patent/CN108999969A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810631A (en) * | 2019-04-11 | 2020-10-23 | 广州汽车集团股份有限公司 | Parking device and transmission |
| CN111237454A (en) * | 2020-03-17 | 2020-06-05 | 精进电动科技股份有限公司 | Mechanical unlocking mechanism for electronic parking |
| CN115405690A (en) * | 2021-05-27 | 2022-11-29 | 长城汽车股份有限公司 | Parking mechanism and vehicle with same |
| CN115405690B (en) * | 2021-05-27 | 2023-07-21 | 长城汽车股份有限公司 | Parking mechanism and vehicle with same |
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