CN208024838U - A kind of commercial car AMT motor gear shift mechanisms - Google Patents
A kind of commercial car AMT motor gear shift mechanisms Download PDFInfo
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- CN208024838U CN208024838U CN201721219486.3U CN201721219486U CN208024838U CN 208024838 U CN208024838 U CN 208024838U CN 201721219486 U CN201721219486 U CN 201721219486U CN 208024838 U CN208024838 U CN 208024838U
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- Prior art keywords
- shift
- square shaft
- gear
- selector fork
- gear selecting
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Abstract
The utility model discloses a kind of commercial car AMT motor gear shift mechanisms,Its interlocking capability referred to shift using broach limit interlock board,The damage caused by gearbox when the action of mechanism shifting being avoided to be carried out at the same time,Square shaft uses square section,With selector fork and shift refers to the gap cooperation,Square shaft and selector fork or shift can only transmit torque between referring in this way,It is axial non-interference,And assembly is easy,It is to shift gears that square shaft rotation, which drives shift to refer to rotation,,It is gear selecting that shift, which refers to and prolongs square shaft to be axially moved,,There cannot be any influence between gear selecting shift,I.e. shift refers to and can axially move and can rotate,And it is non-interference,Shift motor drives shift ball-screw,Drive selector fork rotation,Rotary motion is passed to square shaft by selector fork with square shaft clearance fit,Square shaft starts to rotate,Step electric machine drives gear selecting ball-screw by bevel gear pair,It converted the transmission square shaft of power,So as to shorten mechanism length.
Description
Technical field
The utility model is related to a kind of commercial car AMT motor gear shift mechanisms, belong to automobile gear shift ancillary equipment technology
Field, more particularly to a kind of gear shift mechanism of commercial car AMT motors control.
Background technology
Currently, shifting control is the key components and parts of AMT controls, to substitute the work of conventional manual case, existing city
There are more money gear shift mechanisms on, but there is also a little disadvantages in principle.The block selecting of existing electric motor type gear shift mechanism mostly uses rolling
Axial filament thick stick or gear reduction unit, but since these mechanisms do not have self-locking performance, so shifting axis exists when drive range is in neutral gear
The phenomenon that falling down is had under gravity；In addition to shortening AMT shift times reduces power interruption, need in the same of block selecting
When acted into traveling gear, if but existing gear shift mechanism to realize this function, due to shifting shaft block selecting and into the interlocking of gear
Property, if control is improper, with the fatigue of parts, shifting shaft is easily caused to be twisted off, existing mechanism also has using turbine snail
Bar carries out block selecting control, but worm couple is inefficient, the volume of limiting mechanism.
Based on the above technical problem, the utility model provides a kind of electric motor type gear shift mechanism using roller screw,
Efficient, resistance is small, so that gear shift mechanism is had self-locking function using the mechanism of additional reinforcement, can not be protected after avoiding the occurrence of into gear
The phenomenon that holding, causing off-gear.Shift motor of the present invention drives ball-screw, feed screw nut to stir selector fork rotation, and shift is dialled
Rotary motion is passed to shift by square shaft and referred to by fork, and shift refers to is matched using cambered surface and the arc groove gap on gear selecting feed screw nut
It closes, shift refers to not to be interfered when rotating with gear selecting nut, and such mechanism can be in block selecting position near position
When in advance into advance gear without damage shifting axis.
Invention content
The utility model problem in view of the prior art, provides a kind of commercial car AMT motor gear shift mechanisms, it is therefore an objective to real
Present block selecting position, in advance into gear of advancing without damaging shifting axis, intends to solve of the existing technology ask when position
Topic.
To achieve the above object, the utility model provides the following technical solutions：A kind of commercial car AMT motors shifting machine
Structure comprising rack shell, shift ball screw assembly, gear selecting ball screw assembly, selector fork, square shaft and shift refer to, the shift
Ball screw assembly, and gear selecting ball screw assembly, are vertically set on rack shell, which is characterized in that the gear selecting ball screw assembly,
The excircle of gear selecting nut is provided with arc groove, and the shift refers to the gap cooperation is described in the arc groove of the gear selecting nut
Square shaft is rotatably provided on rack shell, the shift fingerstall is located on the square shaft, and institute is driven will pass through gear selecting nut
It states to shift gears to refer to and be moved along the axis direction of the square shaft, be equipped with and change on the shift nut of the shift ball screw assembly,
Shift fork is kept off, the selector fork is also set on the square shaft, and drives the shift to dial when shift nut axial movement
Fork rotation, the selector fork drive the square shaft to rotate in turn, the shift refer on be equipped with broach and limit interlock board,
To realize that, to shift fingering row interlocking, the broach limit interlock board is arranged on rack shell.
Further, preferably, the leading screw of the gear selecting ball screw assembly, is driven by step electric machine, and step electric machine and choosing
It is provided with conic reducer between the leading screw of shelves ball screw assembly,.
Further, preferably, the square shaft uses square section, and the square shaft and selector fork clearance fit,
The square shaft and shift, which refer to, to be also gap-matched.
Further, preferably, the shift ball screw assembly, is rotated by shift motor by gear reduction unit driving.
Further, preferably, the shift motor is arranged with step electric machine side-by-side parallel.
Compared with prior art, the utility model has the beneficial effects that：
A) the utility model has redesigned the shifting kind of drive, and gear shift mechanism replaces tradition shift cap structure
It is compact, improve transmission efficiency.
B) interlocking capability that the utility model is referred to using broach limit interlock board with shift avoids the action of mechanism shifting same
The damage caused by gearbox when Shi Jinhang.
C) square shaft of the utility model uses square section, with selector fork and shift refers to the gap cooperation, such square shaft
Torque can only be transmitted between referring to selector fork or shift, it is axial non-interference, and assemble and be easy.
D) it is to shift gears that the square shaft rotation of the utility model, which drives shift to refer to rotation,；Shift, which refers to, prolongs square shaft axial movement i.e.
For gear selecting.Cannot there are any influence, i.e. shift to refer to and can axially move and can rotate between gear selecting shift, and mutually
Do not interfere.
E) shift motor of the utility model drives shift ball-screw, drives selector fork rotation, selector fork and side
Rotary motion is passed to square shaft by shaft clearance cooperation, and square shaft starts to rotate, and in order to not influence gear selecting, square shaft refers to shift
Clearance fit, shifting shaft remains to be axially moved without interfering on square shaft when rotation.
F) step electric machine drives gear selecting ball-screw by bevel gear pair, converted the transmission square shaft of power, so as to shorten
Mechanism length.
G) step electric machine drives gear selecting ball-screw, and shifting shaft is driven to be axially moved on square shaft, the kind of drive is simple,
Reliably.
Description of the drawings
Fig. 1 is the mounting structure schematic diagram of the manual prior art；
Fig. 2 is the mounting structure schematic diagram of the motor prior art；
Fig. 3 is a kind of mounting structure schematic diagram of commercial car AMT motor gear shift mechanisms of the utility model；
Fig. 4 is a kind of schematic cross-sectional view of commercial car AMT motor gear shift mechanisms of the utility model；
Fig. 5 illustrates for plan structure after a kind of removal head cover of commercial car AMT motor gear shift mechanisms of the utility model
Figure；
Wherein, 1, shift ball wire bar pair, 2, gear selecting ball wire bar pair, 3, bevel gear pair, 4, selector fork, 5, shift
Refer to, 6, square shaft, 7, broach limit interlock board.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 3-5 is please referred to, the utility model provides a kind of technical solution：A kind of commercial car AMT motor gear shift mechanisms,
Refer to 5 including rack shell, shift ball screw assembly, 1, gear selecting ball screw assembly, 2, selector fork 4, square shaft 6 and shift, the shift
Ball screw assembly, 1 and gear selecting ball screw assembly, 2 are vertically set on rack shell, which is characterized in that the gear selecting ball screw assembly, 2
The excircle of gear selecting nut be provided with arc groove, the shift refers to 5 clearance fits in the arc groove of the gear selecting nut, institute
It states and is rotatably provided with square shaft 6 on rack shell, the shift refers to 5 and is set on the square shaft 6, will pass through gear selecting nut band
The dynamic shift refers to moves along the axis direction of the square shaft, is equipped on the shift nut of the shift ball screw assembly,
There are selector fork 4, the selector fork to be also set on the square shaft, and is changed described in drive when shift nut axial movement
Shift fork 4 is kept off to rotate, the selector fork drives the square shaft to rotate in turn, the shift refer on be equipped with broach limit mutually
Jam plate 7, to realize that referring to 5 to shift interlocks, the broach limit interlock board 7 is arranged on rack shell.
In order to effectively save space, the leading screw of the more compact gear selecting ball screw assembly, of mechanism overall structure is by gear selecting electricity
Machine drives, and is provided with conic reducer between step electric machine and the leading screw of gear selecting ball screw assembly, wherein bevel gear is slowed down
Device uses bevel gear pair 3.
In the present embodiment, the square shaft uses square section, and the square shaft and selector fork clearance fit, described
Square shaft and shift, which refer to, to be also gap-matched.The shift ball screw assembly, is turned by shift motor by gear reduction unit driving
It is dynamic.The shift motor is arranged with step electric machine side-by-side parallel.
Original manual head cover is changed to automatically controlled leading screw capping mechanism by the utility model, and structure is compact-sized, and cost is small, is used
Ball-screw carries out block selecting control, and micro and high speed feed can be achieved using ball-screw, ensure that block selecting position is reliable, accurate
Really, especially when drive range is in neutral gear.The utility model carries out shift control using ball-screw, utilizes the efficient of mechanism
Property, it ensure that into notch speed degree, the utility model is slowed down using step electric machine by bevel gear pair, and space is effectively saved, mechanism
Overall structure is more compact, and the utility model is closed using broach limit interlock board and shift assignment, is formed self-locking mechanism, is avoided gear selecting
Damage not in place to refer to gear just progress gear selecting of not making the return trip empty with regard to shifting gears or shifting gears, causing the shifting block of gearbox and mechanism shift to refer to,
It ensure that the reliability of mechanism, the utility model shift motor drive ball-screw, feed screw nut to stir selector fork rotation, change
Rotary motion is passed to shift by square shaft and referred to by gear shift fork, and shift refers to using between the arc groove in cambered surface and gear selecting feed screw nut
Gap coordinates, and shift refers to and do not interfered with gear selecting nut when rotating, such mechanism can block selecting position near
In advance into gear of advancing without damaging shifting axis when position.
In addition, the utility model has the following advantages：
A) the utility model has redesigned the shifting kind of drive, and gear shift mechanism replaces tradition shift cap structure
It is compact, improve transmission efficiency.
B) interlocking capability that the utility model is referred to using broach limit interlock board with shift avoids the action of mechanism shifting same
The damage caused by gearbox when Shi Jinhang.
C) square shaft of the utility model uses square section, with selector fork and shift refers to the gap cooperation, such square shaft
Torque can only be transmitted between referring to selector fork or shift, it is axial non-interference, and assemble and be easy.
D) it is to shift gears that the square shaft rotation of the utility model, which drives shift to refer to rotation,；Shift, which refers to, prolongs square shaft axial movement i.e.
For gear selecting.Cannot there are any influence, i.e. shift to refer to and can axially move and can rotate between gear selecting shift, and mutually
Do not interfere.
E) shift motor of the utility model drives shift ball-screw, drives selector fork rotation, selector fork and side
Rotary motion is passed to square shaft by shaft clearance cooperation, and square shaft starts to rotate, and in order to not influence gear selecting, square shaft refers to shift
Clearance fit, shifting shaft remains to be axially moved without interfering on square shaft when rotation.
F) step electric machine drives gear selecting ball-screw by bevel gear pair, converted the transmission square shaft of power, so as to shorten
Mechanism length.
G) step electric machine drives gear selecting ball-screw, and shifting shaft is driven to be axially moved on square shaft, the kind of drive is simple,
Reliably.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of commercial car AMT motor gear shift mechanisms comprising rack shell, shift ball screw assembly, gear selecting ball screw assembly,
Selector fork, square shaft and shift refer to, and the shift ball screw assembly, and gear selecting ball screw assembly, are vertically set on rack shell,
It is characterized in that, the excircle of the gear selecting nut of the gear selecting ball screw assembly, is provided with arc groove, the shift refers to the gap cooperation
In the arc groove of the gear selecting nut, square shaft is rotatably provided on the rack shell, the shift fingerstall is located at described
On square shaft, the shift is driven to refer to and moved along the axis direction of the square shaft will pass through gear selecting nut, the shift ball
Selector fork is equipped on the shift nut of lead screw pair, the selector fork is also set on the square shaft, and described is changed
The selector fork is driven to rotate when gear nut axial movement, the selector fork drives the square shaft to rotate in turn, described to change
Gear is equipped with broach limit interlock board on referring to, to realize that, to shift fingering row interlocking, the broach limit interlock board is set
It sets on rack shell.
2. a kind of commercial car AMT motor gear shift mechanisms according to claim 1, it is characterised in that：The gear selecting ball
The leading screw of lead screw pair is driven by step electric machine, and is provided with bevel gear between step electric machine and the leading screw of gear selecting ball screw assembly, and is subtracted
Fast device.
3. a kind of commercial car AMT motor gear shift mechanisms according to claim 1, it is characterised in that：The square shaft uses
Square section, and the square shaft and selector fork clearance fit, the square shaft and shift, which refer to, to be also gap-matched.
4. a kind of commercial car AMT motor gear shift mechanisms according to claim 2, it is characterised in that：The shift ball
Lead screw pair is by shift motor by gear reduction unit driving rotation.
5. a kind of commercial car AMT motor gear shift mechanisms according to claim 4, it is characterised in that：The shift motor
It is arranged with step electric machine side-by-side parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219486.3U CN208024838U (en) | 2017-09-22 | 2017-09-22 | A kind of commercial car AMT motor gear shift mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219486.3U CN208024838U (en) | 2017-09-22 | 2017-09-22 | A kind of commercial car AMT motor gear shift mechanisms |
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| Publication Number | Publication Date |
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| CN208024838U true CN208024838U (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721219486.3U Active CN208024838U (en) | 2017-09-22 | 2017-09-22 | A kind of commercial car AMT motor gear shift mechanisms |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943920A (en) * | 2021-01-27 | 2021-06-11 | 陕西法士特齿轮有限责任公司 | Six-gear electro-hydraulic AMT assembly |
-
2017
- 2017-09-22 CN CN201721219486.3U patent/CN208024838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943920A (en) * | 2021-01-27 | 2021-06-11 | 陕西法士特齿轮有限责任公司 | Six-gear electro-hydraulic AMT assembly |
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