CN209196097U - A kind of vehicle gearbox - Google Patents
A kind of vehicle gearbox Download PDFInfo
- Publication number
- CN209196097U CN209196097U CN201821729723.5U CN201821729723U CN209196097U CN 209196097 U CN209196097 U CN 209196097U CN 201821729723 U CN201821729723 U CN 201821729723U CN 209196097 U CN209196097 U CN 209196097U
- Authority
- CN
- China
- Prior art keywords
- drive rod
- power device
- cam
- locking
- cabinet
- 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.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a kind of vehicle gearboxes, including cabinet, sprocket drive spindle is set on cabinet, locking wheel is arranged on gear shaft, cabinet is additionally provided with locking device, and locking device includes power device, drive rod, torsional spring and cam, power device and drive rod are sequentially connected, the end of drive rod connects cam, and one end and the cam of torsional spring are fixed, and the other end and the drive rod of torsional spring are fixed；The axis of drive rod and gear shaft is in the same plane, and locking wheel is distributed along the circumference with several notches, and the protrusion that can be embedded in any one notch is provided on cam.A kind of vehicle gearbox of the utility model has the advantages that small in size, structure is simple and easy to maintain.
Description
Technical field
The utility model relates to vehicle part more particularly to a kind of vehicle gearboxes.
Background technique
In the prior art, P grades of operations are with parking brake operation as the increasingly wider of the structure application being independently arranged
It is general, when parking, especially stops on slope road, not only need to shift to gear into P grades, it is also necessary to which pulling the hand brake prevents car slipping.It is existing
Automatic P grades of gearbox is divided into external hanging type and two kinds built-in, external hanging type gearbox, the lock knot constituted including locking wheel and pawl pole
Structure, by external a power device and transmission mechanism stir pawl pole be embedded in locking wheel in and be provided with tension spring return and
Energy storage is to realize P grades of parking functions；Built-in gearbox, general principles are consistent, including locking wheel, pawl pole, transmission mechanism, pressure
Spring and it is changed to built-in power device, regardless of external hanging type or built-in, transmission mechanism is with gearbox middle gear axis
Normal direction setting so that the plane of pawl pole direction of action with transmission mechanism be also it is vertical, need to be arranged deflecting structure, such as whirlpool tooth
Wheel, on the one hand occupies the volume of more gearboxes, on the one hand makes structure increasingly complex, and maintenance cost rises.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of simple and easy to maintain automobile-used of small in size, structure
Gearbox；
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
A kind of vehicle gearbox, including cabinet are arranged sprocket drive spindle on cabinet, locking wheel, cabinet are arranged on gear shaft
It is additionally provided with locking device, locking device includes power device, drive rod, torsional spring and cam, and power device and drive rod pass
The end of dynamic connection, drive rod connects cam, and one end and the cam of torsional spring are fixed, and the other end and the drive rod of torsional spring are fixed；It passes
Lever is parallel with the axis of gear shaft to be in the same plane, and locking wheel is distributed along the circumference with several notches, is set on cam
It is equipped with the protrusion that can be embedded in any one notch.
Preferably, cam includes the circular wheel plate that a radius is r, and radially from wheel plate, extended distance is protrusion outward
H, the peripheral radius of locking wheel are R, and notch is radially recessed inwardly distance from the periphery of locking wheel as H, drive rod and gear shaft
Axis spacing be S, meet following relationship between each data: S >=R+r；/2≥0.5*H；
Preferably, power device is one kind of stepper motor, cylinder or oil cylinder.
Preferably, power device is controlled by external signal and is connected.
Preferably, power device is stepper motor, and drive rod is the output shaft of power device.
Beneficial effect is:
Compared with prior art, sprocket drive spindle, gear is arranged on cabinet in a kind of vehicle gearbox cabinet of the utility model
It is arranged with locking wheel on axis, cabinet is additionally provided with locking device, and locking device includes power device, drive rod, torsional spring and convex
Wheel；Several notches are distributed along the circumference with by the way that locking wheel is arranged, the protrusion of any one embeddable notch is provided on cam, is led to
Crossing power device drives drive rod to circumferentially rotate around own axes, and then drives protrusion insertion, then is matched by power device reversion
Torsional spring is closed as energy storage device and drives drive rod return, realizes gearbox P grades of parking and exit function；In addition, by drive rod
It is in the same plane with the axis of gear shaft, so that mechanism need not design deflecting structure, overall structure is simple and safeguards
It is convenient, drive rod be adequately utilized along side gear shaft to space so that gearbox need not perpendicular to side gear shaft to
Increase space on longitudinal size, so that device volume is small.
Detailed description of the invention
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing, in which:
Fig. 1 is that a kind of vehicle gearbox cabinet of the utility model enters parking P mark structure schematic diagram；
Fig. 2 is that a kind of vehicle gearbox cabinet of the utility model exits parking P mark structure schematic diagram；
Fig. 3 is the A-A cross-sectional view of Fig. 1；
Fig. 4 is the front schematic view of component cam.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, sprocket drive spindle 2, gear are arranged on cabinet 1 for a kind of vehicle gearbox, including cabinet 1
Locking wheel 3 is arranged on axis 2, cabinet 1 is additionally provided with locking device 4, and locking device 4 includes power device 41, drive rod 42, turns round
Spring 43 and cam 44, power device 41 and drive rod 42 are sequentially connected, and the end of drive rod 42 connects cam 44, torsional spring 43
One end and cam 44 are fixed, and the other end and drive rod 42 of torsional spring 43 are fixed；The axis of drive rod 42 and gear shaft 2 is located at same
In plane, locking wheel 3 is distributed along the circumference with several notches 31, is provided with the protrusion that can be embedded in any one notch 31 on cam 44
441.It drives drive rod 42 to circumferentially rotate around the own axes of drive rod 42 by power device 41, and then drives protrusion 441 embedding
Enter notch 31, realize the function of P grades of parkings, when exiting, 41 counteragent of power device moves back 42 return of drive rod, protrusion 441
Notch 31 out, torsional spring 43 are used as energy storage device, and the torsion kinetic energy that absorbable power device 41 generates switchs to potential energy, to move next time
It is ready.It is in the same plane since drive rod 42 is parallel with the axis of gear shaft 2, being equivalent to drive rod 42 is edge
The thickness direction of cabinet 1, it is substantially in the prior art along its length, through-thickness setting can make full use of cabinet
1 space is not required to increase thickness and length, the plane and locking wheel 3 of the direction of motion of the cam 44 of 42 end of drive rod connection
Locating plane is overlapped, therefore need not design deflecting structure, and whole drive mechanism is simple and easy to maintain, and drive rod 42 is sufficient
The space along 2 direction of gear shaft, the usually thickness of mechanism is utilized so that cabinet 1 need not perpendicular to side gear shaft to
Increase space on longitudinal size, so that overall volume is small.
Preferable embodiment, as shown in Figure 1 and Figure 4, cam 44 include the circular wheel plate 442 that a radius is r, convex
Playing 441, radially from wheel plate 442, extended distance is h outward, and the peripheral radius of locking wheel 3 is R, and notch 31 is radially from locking wheel
3 periphery is recessed inwardly distance as H, and the axis spacing of drive rod 42 and gear shaft 2 is S, meets following relationship between each data
Formula: S >=R+r；r+h+R+H-S/2≥0.5*H；Ensure that protrusion 441 is embedded in half of the depth more than notch 31 of notch 31, so that
It is chimeric firm, it is not easy vibration and loosens.
Preferable embodiment, power device 41 are controlled by external signal and are connected, and under normal circumstances, power device 41 can be
One kind of stepper motor, rotary cylinder or rotary oil cylinder is rotated by it and transmission shaft 42 is driven to be rotated, and protrusion is completed
The movement of 441 insertion notches 31；When power device 41 is stepper motor, what drive rod 42 can be integrated is set as power device 41
Output shaft, simplify structure, if the two separate, between output shaft and transmission shaft 42 settable shaft coupling be used for damping.
Above embodiments are only to illustrate the technical solution of the utility model and are not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.
Claims (5)
1. a kind of vehicle gearbox, including cabinet (1), sprocket drive spindle (2) are set on the cabinet (1), on the gear shaft (2)
It is arranged with locking wheel (3), it is characterised in that: the cabinet (1) is additionally provided with locking device (4), and the locking device (4) includes
Power device (41), drive rod (42), torsional spring (43) and cam (44), the power device (41) and the drive rod (42)
Transmission connection, the end of the drive rod (42) connect the cam (44), one end of the torsional spring (43) and the cam
(44) fixed, the other end of the torsional spring (43) and the drive rod (42) are fixed；The drive rod (42) and the gear shaft
(2) axis is parallel to be in the same plane, and the locking wheel (3) is distributed along the circumference with several notches (31), described convex
The protrusion (441) that can be embedded in any one notch (31) is provided on wheel (44).
2. a kind of vehicle gearbox according to claim 1, it is characterised in that: the cam (44) includes that a radius is
The circular wheel plate (442) of r, radially from the wheel plate (442), extended distance is h, the locking to the protrusion (441) outward
Take turns (3) peripheral radius be R, the notch (31) radially from the periphery of the locking wheel (3) be recessed inwardly distance be H, institute
The axis spacing for stating drive rod (42) and the gear shaft (2) is S, meets following relationship between each data: S >=R+r；(r+h
+R+H-S)/2≥0.5*H。
3. a kind of vehicle gearbox according to claim 1 or 2, it is characterised in that: the power device (41) is stepping
One kind of motor, rotary cylinder or rotary oil cylinder.
4. a kind of vehicle gearbox according to claim 1 or 2, it is characterised in that: the power device (41) is by outside
Signal control connection.
5. a kind of vehicle gearbox according to claim 1 or 2, it is characterised in that: the power device (41) is stepping
Motor, the drive rod (42) are the output shaft of the power device (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729723.5U CN209196097U (en) | 2018-10-24 | 2018-10-24 | A kind of vehicle gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729723.5U CN209196097U (en) | 2018-10-24 | 2018-10-24 | A kind of vehicle gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209196097U true CN209196097U (en) | 2019-08-02 |
Family
ID=67408960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729723.5U Expired - Fee Related CN209196097U (en) | 2018-10-24 | 2018-10-24 | A kind of vehicle gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209196097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114219A (en) * | 2018-10-24 | 2019-01-01 | 湖南力驰新能源科技有限公司 | A kind of vehicle gearbox |
-
2018
- 2018-10-24 CN CN201821729723.5U patent/CN209196097U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114219A (en) * | 2018-10-24 | 2019-01-01 | 湖南力驰新能源科技有限公司 | A kind of vehicle gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20201024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |