CN206723433U - A kind of electric vehicle speed reducer P shelves lockable mechanisms - Google Patents
A kind of electric vehicle speed reducer P shelves lockable mechanisms Download PDFInfo
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- CN206723433U CN206723433U CN201720520535.0U CN201720520535U CN206723433U CN 206723433 U CN206723433 U CN 206723433U CN 201720520535 U CN201720520535 U CN 201720520535U CN 206723433 U CN206723433 U CN 206723433U
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- shelves
- gear
- pawl
- screw rod
- conical surface
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Abstract
Auto parts and components technical field of structures is the utility model is related to, in particular to a kind of electric vehicle speed reducer P shelves lockable mechanisms.Including decelerator control unit, P shelves sensor and P shelves mechanical actuating mechanisms, the horizontal swing for being changed into extension pawl with screw-rod structure by motor assembly is covered by the conical surface, realize locking and the unlatching of change gear, while the rotational angle of worm screw is monitored to realize the accurate control to motor assembly by angular transducer.The utility model is simple in construction, and transmission is succinct, can accurately automatically control security of the P shelves locking structure in driving and parking, have great promotional value.
Description
Technical field
Auto parts and components technical field of structures is the utility model is related to, is locked in particular to a kind of electric vehicle speed reducer P shelves
Locking mechanism.
Background technology
Current handle type selector drives locking/unblock of P shelves by soft drawn rope, and its course of work is：Start vapour
Brake is slammed after car engine, P shelves locking buttons is pressed and drags handle gear needed for；Grasped when parking using identical
Make, and shift handle onto P shelves with parking.The defects of handle type gearshift, is：1) employ interlocking handle bulb and by
Button structure, it is complicated, design and produce cost high, maintenance and safeguard inconvenience；2) locking/unblock of P shelves is by drag-line and hand
Handle is connected, and driving operates by the arm strength of operator, and required power is larger, to female driver's inconvenience；3) it is empty shared by handle
Between the larger effective utilization for being unfavorable for space, and higher protrusion, and unsafe factor be present.For drawbacks described above, go out
Show electric hand brake, but automotive electronics P shelves locking/unblock driving structure is complicated at present, cost is also higher, and control accuracy is low,
Also there is certain potential safety hazard in driving conditions.
The content of the invention
The purpose of this utility model seeks to the deficiency for solving above-mentioned background technology, there is provided a kind of electric vehicle speed reducer P
Shelves lockable mechanism.
The technical solution of the utility model is：A kind of electric vehicle speed reducer P shelves lockable mechanisms, including decelerator control are single
Member, P shelves sensor and P shelves mechanical actuating mechanisms, it is characterised in that：The P shelves mechanical actuating mechanism includes being located at reduction-gear housing
The motor assembly in external face, transmission mechanism, conical surface set, change gear and the extension pawl being located in reduction-gear housing body；
The transmission mechanism includes worm screw, helical gear, gear and screw rod；Described worm screw is connected with motor assembly, worm screw
End is fixed on reducer shell by bearing and collar；Described helical gear is connected with worm engaging, helical gear shaft
On be coaxially equipped with the gear, the gear engages with the screw rod, drive screw rod move up and down；
The conical surface set that can be moved axially along a screw is socketed with the screw rod, conical surface set lower end is fixed on by a spring
Screw rod upper end is moved up and down with screw rod, and conical surface set upper side is fitted tightly over by face kinematic pair hangs pawl one under the action of the spring
End, the up and down motion that the conical surface is covered is changed into the horizontal swing for hanging pawl by the effect of face kinematic pair；
The teeth groove corresponding matching of the other end ratchet for hanging pawl and the change gear excircle on reducer shaft, hang logical among pawl
Cross extension pawl axle to be connected with reduction case, an extension pawl return torsion spring is cased with pawl axle is hung, the one end, which is extend into, to be hung on pawl
In the oval shaped pin hole opened up, the other end is located by connecting in the cylindrical hole of reduction case；
Gear axial direction end set has P shelves sensors；Described P shelves sensor connects with decelerator control unit data
Connect；The angle that described decelerator control unit is turned over by P shelves sensor test gears judges the position of conical surface set, so as to
When decision sends working signal to motor assembly, realizes the control of P shelves；
P shelves control modules built in the decelerator control unit, motor assembly is connected by a driving port, realizes P
The control of shelves locking.
One end of further described conical surface set towards screw rod offers the slotted eye for accommodating spring；Described spring socket
On screw rod, its upper end is extend into slotted eye and is fixedly connected with conical surface set, and its lower end is fixedly connected with screw rod.
Drive mechanism is provided between further described gear and P shelves sensors.
Further described drive mechanism includes the first splined shaft, the second splined shaft, first bevel gear and the second cone tooth
Wheel；It is coaxially arranged with gear that the first described splined shaft is fixed on geared end；Described first bevel gear is socketed in the first flower
It is connected by meshing transmission on key axle with second bevel gear；The second described splined shaft is connected with P shelves sensors, second bevel gear socket
On the second splined shaft.
The beneficial effects of the utility model are：By setting angular transducer so that motor assembly position of output axle, worm screw
Corner, turbine corner, bevel gear, splined shaft, the rotary shaft of bridgt circuit voltage and motor form closed-loop path, form closure
Reponse system, it can accurately control the disengagement for hanging pawl and change gear and engage two states, improve the control of whole P shelves lockable mechanism
Precision processed, improve security of the P shelves lockable mechanism in driving and parking.
By setting spring structure between conical surface set and screw rod, conical surface set upper side can be forced closely to be connect with hanging pawl all the time
Touch, be not in the situation of disengagement, compression spring ensures that conical surface set is bonded with hanging pawl at any time, prevents gap, can
To eliminate safe hidden trouble；If gap, when vehicle is run due to vibration, cause conical surface set uninterrupted with hanging the generation of pawl afterbody
Impact, reduce the service life of part.
The utility model is simple in construction, and transmission is succinct, can accurately automatically control P shelves locking structure in driving and parking
Security, there is great promotional value.
Brief description of the drawings
Fig. 1：Structural representation (hanging pawl and change gear locking) of the present utility model；
Fig. 2：Structural representation (hanging pawl to disengage with change gear) of the present utility model；
Fig. 3：The structural representation of screw rod of the present utility model and conical surface set；
Wherein：1-motor assembly；2-worm screw；3-helical gear；4-gear；5-screw rod；6-spring；7-conical surface set；
8-hang pawl；9-change gear；10-hang pawl axle；11-torsion spring；12-P shelves sensors；13-slotted eye；14-the first splined shaft；
15-the second splined shaft；16-first bevel gear；17-second bevel gear.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1~3, a kind of electric vehicle speed reducer P shelves lockable mechanisms, including decelerator control unit, P shelves sensor and
P shelves mechanical actuating mechanisms, P shelves control module built in decelerator control unit, motor assembly 1 is connected by a driving port,
Realize the control of P shelves lockings.
The P shelves sensor of the present embodiment is angular transducer, judges locking situation by testing rotational angle, by by number
According to decelerator control unit is transferred to, decelerator control unit is controlled according to the signal to motor assembly 1.
P shelves mechanical actuating mechanism includes being located at motor assembly 1 outside reduction case, the output end of motor assembly 1 with
Worm screw 2 is connected, and bearing and collar is provided with worm screw 2, and be fixed on by bearing and collar on the housing of decelerator, snail
Bar 2 is connected by meshing transmission with helical gear 3, and the power of motor assembly 1 is delivered on helical gear 3 by worm screw 2.It is same on the axle of helical gear 3
Axle is equipped with gear 4, and gear 4 engages with screw rod 5, drives screw rod 5 to move up and down.
As shown in figure 3, screw rod 5 includes the axle sleeve for being fixed on upper end, conical surface set 7, this reality are provided between axle sleeve and screw rod 5
The conical surface set 7 for applying example is the ring set structure that upper end is pyramidal structure, and conical surface set 7 is socketed on the axis body between screw rod 5 and axle sleeve,
Conical surface set 7 can slide on screw rod 5.In addition, conical surface set 7 offers the slotted eye 13 for accommodating spring 6, bullet towards one end of screw rod 5
Spring 6 is socketed on screw rod 5, and its upper end is extend into slotted eye 13 to be fixedly connected with conical surface set 7, and its lower end is fixedly connected with screw rod 5.
Spring 6 is in compressive state.
In fact, the screw rod 5 of the present embodiment includes threaded portion and optical axis portion, optical axis portion is fixed on threaded portion
Upper end, the upper end of optical axis portion are provided with axle sleeve, and conical surface set 7 is set on optical axis portion, and its upper end is fitted in the lower end of axle sleeve.
When screw rod 5 rises, conical surface set 7 is moved downward its upper end and departs from axle sleeve (but conical surface set 7 is outer by the squeezing actions for hanging pawl 8
The side conical surface, which is still fitted tightly over, to be hung on pawl 8), when screw rod 5 declines, conical surface set 7 rises under the action of the spring, conical surface set 7
The outside conical surface, which is still fitted in, to be hung on pawl 8, and when moving to ultimate range, the upper end of conical surface set 7 is fitted in the lower end of axle sleeve.
The conical surface covers 7 upper ends and is fitted tightly over extension pawl 8 one end by face kinematic pair under the effect of spring 6, passes through face kinematic pair
Effect will by the conical surface cover 7 ups and down motion be changed into extension pawl 8 horizontal swing.The present embodiment is by setting spring knot
Structure, make the conical surface set 7 and extension pawl 8 be brought into close contact all the time together with, either in the case where screw rod 5 rises or declined, the conical surface
Set 7 and extension pawl 8 cannot come off, and can so ensure during automobile moves, and conical surface set will not produce impact with hanging pawl afterbody
Collision, had both been avoided that generation abnormal sound, and can enough improves the service life of parts.
The function of P shelves lockings is realized, it is necessary to hang being used cooperatively for pawl 8 and change gear 9.The other end ratchet of pawl 8 is hung with subtracting
The teeth groove corresponding matching of the excircle of change gear 9 on fast device axle, hang and be connected among pawl 8 by hanging pawl axle 10 with reduction case,
Hang and an extension pawl return torsion spring 11 is cased with pawl axle 10, the one end of torsion spring 11 is extend into the oval shaped pin hole hung and opened up on pawl 8, separately
One end is located by connecting in the cylindrical hole of reduction case.Hang in the swing process of pawl 8, hang the teeth groove that the end of pawl 8 extend into change gear 9
It is middle that change gear 9 is stuck, P shelves lockings are realized, when conical surface set 7 declines, extension pawl 8 is replied in the presence of torsion spring 11, is hung the end of pawl 8 and is taken off
From teeth groove, automobile starts to advance.
The P shelves sensor 12 of the present embodiment is angular transducer, and P shelves sensor 12 is connected with gear 4, P shelves sensing
Device 12 is connected with decelerator control unit data, the angle that decelerator control unit is turned over by the testing gears 4 of P shelves sensor 12
Judge the position of conical surface set 7, so as to determine when send working signal to motor assembly 1, realize the control of P shelves,
In order to avoid occupying space in decelerator, P shelves sensor 12 is arranged on hull outside by the present embodiment, and P shelves pass
The first splined shaft 14, the second splined shaft 15, first bevel gear 16 and second bevel gear 17 are provided between sensor 12 and gear 4,
First splined shaft 14 is fixed on the end of gear 4 and gear 4 is coaxially arranged, first bevel gear 16 be socketed on the first splined shaft 14 with
Second bevel gear 17 is connected by meshing transmission, and the second splined shaft 15 is connected with P shelves sensor 12, and second bevel gear 17 is socketed in second
On splined shaft 15.
In use, motor assembly 1 drives worm screw 2 to rotate, worm screw 2 drives helical gear 3 to rotate, 4 turns of 3 drive gear of helical gear
Dynamic, the drive screw 5 of gear 4 rises, and the swing backward of pawl 8 is hung in the driving of conical surface set 7, is hung the front end of pawl 8 and is extend into the teeth groove of change gear 9,
The locking of P shelves is realized, as shown in Figure 1.Meanwhile rotation situation is passed to P shelves sensor 12, P by gear 4 by two bevel gears
The rotation situation of gear 4 is delivered to control system by shelves sensor 12, and control system turns according to the situation controlled motor assembly 1
It is dynamic.
When automobile will start to advance, screw rod 5 moves downward under the driving of gear 4, and conical surface set 7 declines, and hangs pawl 8 to forward swing
Dynamic, teeth groove is exited in the end for hanging pawl 8, releases locking situation, as shown in Figure 2.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the spirit and scope of the utility model is not departed from
There are various changes and modifications, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model will
Protection domain is asked to be defined by appended claims and its equivalent.
Claims (4)
1. a kind of electric vehicle speed reducer P shelves lockable mechanisms, including decelerator control unit, P shelves sensor and P shelves machinery perform
Mechanism, it is characterised in that：The P shelves mechanical actuating mechanism includes being located at the motor assembly (1) outside reduction case, is located at and subtracts
Transmission mechanism, conical surface set (7), change gear (9) and extension pawl (8) in fast device casing；
The transmission mechanism includes worm screw (2), helical gear (3), gear (4) and screw rod (5)；Described worm screw (2) and motor are total
Connected into (1), worm screw (2) end is fixed on reducer shell by bearing and collar；Described helical gear (3) and worm screw
(2) it is connected by meshing transmission, the gear (4) is coaxially equipped with helical gear (3) axle, the gear (4) is nibbled with the screw rod (5)
Close, drive screw rod (5) to move up and down；
The conical surface set (7) that can be moved axially along screw rod (5) is socketed with the screw rod (5), conical surface set (7) lower end passes through a bullet
Spring (6) is fixed on screw rod (5) upper end and moved up and down with screw rod (5), and conical surface set (7) upper end passes through under spring (6) effect
Face kinematic pair, which is fitted tightly over, hangs pawl (8) one end, will be changed into the up and down motion of conical surface set (7) by the effect of face kinematic pair
Hang the horizontal swing of pawl (8)；
The teeth groove corresponding matching of the other end ratchet for hanging pawl (8) and change gear (9) excircle on reducer shaft, hangs pawl (8)
Centre is connected by hanging pawl axle (10) with reduction case, and an extension pawl return torsion spring (11), the torsion are cased with pawl axle (10) is hung
Spring (11) one end is extend into the oval shaped pin hole hung and opened up on pawl (8), and the other end is located by connecting on the cylinder of reduction case
Kong Zhong；
Gear (4) axial end portion is provided with P shelves sensor (12)；Described P shelves sensor (12) and decelerator control are single
Metadata connects；The angle that described decelerator control unit is turned over by P shelves sensor (12) testing gears (4) is judged to bore
The position of surface cover (7), so as to determine when send working signal to motor assembly (1), realize the control of P shelves；
P shelves control modules built in the decelerator control unit, motor assembly (1) is connected by a driving port, realizes P shelves
The control of locking.
A kind of 2. electric vehicle speed reducer P shelves lockable mechanisms as claimed in claim 1, it is characterised in that：Described conical surface set
(7) slotted eye (13) for accommodating spring (6) is offered towards one end of screw rod (5)；Described spring (6) is socketed on screw rod (5),
Its upper end is extend into slotted eye (13) and is fixedly connected with conical surface set (7), and its lower end is fixedly connected with screw rod (5).
A kind of 3. electric vehicle speed reducer P shelves lockable mechanisms as claimed in claim 1, it is characterised in that：Described gear (4)
Drive mechanism is provided between P shelves sensor (12).
A kind of 4. electric vehicle speed reducer P shelves lockable mechanisms as claimed in claim 2, it is characterised in that：Described transmission knot
Structure includes the first splined shaft (14), the second splined shaft (15), first bevel gear (16) and second bevel gear (17)；Described first
Splined shaft (14) is fixed on gear (4) end and gear (4) is coaxially arranged；Described first bevel gear (16) is socketed in the first flower
It is connected by meshing transmission on key axle (14) with second bevel gear (17)；Described the second splined shaft (15) connects with P shelves sensor (12)
Connect, second bevel gear (17) is socketed on the second splined shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520535.0U CN206723433U (en) | 2017-05-11 | 2017-05-11 | A kind of electric vehicle speed reducer P shelves lockable mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720520535.0U CN206723433U (en) | 2017-05-11 | 2017-05-11 | A kind of electric vehicle speed reducer P shelves lockable mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723433U true CN206723433U (en) | 2017-12-08 |
Family
ID=60510539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720520535.0U Active CN206723433U (en) | 2017-05-11 | 2017-05-11 | A kind of electric vehicle speed reducer P shelves lockable mechanisms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723433U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081168A (en) * | 2019-03-21 | 2019-08-02 | 北京长城华冠汽车科技股份有限公司 | Vehicle and its parking device |
| CN111677831A (en) * | 2020-06-16 | 2020-09-18 | 汉腾汽车有限公司 | Two-gear speed reducer with P-gear structure for pure electric vehicle |
| WO2021244428A1 (en) * | 2020-06-04 | 2021-12-09 | Ningbo Geely Automobile Research & Development Co., Ltd. | A park lock assembly |
-
2017
- 2017-05-11 CN CN201720520535.0U patent/CN206723433U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081168A (en) * | 2019-03-21 | 2019-08-02 | 北京长城华冠汽车科技股份有限公司 | Vehicle and its parking device |
| WO2021244428A1 (en) * | 2020-06-04 | 2021-12-09 | Ningbo Geely Automobile Research & Development Co., Ltd. | A park lock assembly |
| CN111677831A (en) * | 2020-06-16 | 2020-09-18 | 汉腾汽车有限公司 | Two-gear speed reducer with P-gear structure for pure electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220712 Address after: 442000 No. 2 Guangdong Road, Shiyan City, Hubei Province Patentee after: DONGFENG AUTOMOBILE CHASSIS SYSTEM Co.,Ltd. Address before: 442022 No. 22, Chaoyang North Road, Zhangwan District, Shiyan City, Wuhan City, Hubei Province Patentee before: DONGFENG EQUIPMENT MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right |