CN208331227U - Transmission gear Multifunctional self-locking unit - Google Patents
Transmission gear Multifunctional self-locking unit Download PDFInfo
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- CN208331227U CN208331227U CN201820291502.8U CN201820291502U CN208331227U CN 208331227 U CN208331227 U CN 208331227U CN 201820291502 U CN201820291502 U CN 201820291502U CN 208331227 U CN208331227 U CN 208331227U
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- tooth
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- cog
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Abstract
A kind of transmission gear Multifunctional self-locking unit, comprising: the socket of the Bolt with latching action of vertical motion and associated horizontal movement, in which: socket is set in shift fork axle；Bolt with latching action is equipped at least one set of pin tooth；At least one set of seat tooth is correspondingly provided on socket；Bolt with latching action is equipped with the gib block for being parallel to shift fork axle axial direction, socket, which is equipped with, is parallel to shift fork axle axially and guide groove corresponding with gib block, Bolt with latching action lifts pin tooth and is detached from socket seat tooth between cog and gib block without departing from the guide groove of socket when shift, shift fork axle drives socket to make gear shifting action in the axial direction, after reaching target gear, Bolt with latching action is fallen, and pin tooth is inserted into seat tooth between cog.The present apparatus can effectively solve the problem that in existing structure because shift fork axle by axial perturbed force effect caused by off-gear situation, it is the self-locking stabilization of gear, reliable, accurate.
Description
Technical field
The utility model relates to a kind of technology in transmission control field, specifically a kind of transmission gear is multi-functional
From lock unit, can be applied in gearshift of vehicle transmission system
Background technique
In speed changer operating condition, even if stablizing under a certain gear, shift fork axle still has the disturbance of axial force, and one
Denier perturbed force axially retains power more than what elastic self-lock pin was formed in shift fork axle, then target gear is unable to maintain that, generates " de-
Gear " (row of jump) phenomenon；In addition, self-locking spring coefficient of elasticity is difficult to select, if coefficient of elasticity is big, self-locking spring power is big, changes
It is also big to keep off power, a series of components is caused to need to reinforce, and feel is deteriorated for manual transmission, if coefficient of elasticity
Small, then self-locking spring power is small, it is easier to " off-gear " phenomenon occur；Moreover self-locking steel ball by spring pressure the case where under one
It is directly slided on shift fork axle surface, parts depreciation is be easy to cause to fail, in order to improve wearability, the usual shift fork axle portion faces are needed
Make special hardening and intensive treatment, this processing often makes shift fork axle generate abnormal deformation, influences machining accuracy, manufacture difficulty
Increase.
Utility model content
The utility model In view of the above shortcomings of the prior art, proposes a kind of transmission gear Multifunctional self-locking list
Member, can effectively solve the problem that in existing structure because shift fork axle by axial perturbed force effect caused by off-gear situation.
The utility model is achieved through the following technical solutions:
The utility model includes: the Bolt with latching action of vertical motion and the socket of associated horizontal movement, in which: bolt
Seat is set in shift fork axle；Bolt with latching action is equipped at least one set of pin tooth；At least one set of seat tooth is correspondingly provided on socket.
One group of pin tooth is preferably three, and corresponding one group of seat tooth is preferably six.
The Bolt with latching action is equipped with the gib block for being parallel to shift fork axle axial direction, and socket is equipped with and is parallel to shift fork axle
Guide groove axial and corresponding with gib block.
When the section of the Bolt with latching action pin tooth, socket seat tooth uses trapezium structure, in addition to pin tooth and seat tooth between cog,
Seat tooth and pin tooth between cog must be respectively similar shape, with size outside, pin tooth and pin tooth between cog, seat tooth and seat tooth between cog can respectively together
Shape and different size.But in view of gear shifting force is transmitted with the trapezoidal face of pin tooth again by shift fork axle to the trapezoidal flank of tooth of seat tooth,
Bolt with latching action and socket should intensity having the same, so pin tooth, pin tooth between cog, seat tooth, seat tooth between cog are preferably all
Similar shape, same to size.
During long-play, pin tooth and the trapezoidal binding face of seat tooth can be worn, thus the utility model by
Between pin tooth tooth top and seat tooth between cog bottom, seat tooth tooth top and pin tooth between cog bottom reasonable clearance is set, i.e. bottom clearance is realized
State the automatic elimination of backlash caused by abrasion, i.e., because of the presence of bottom clearance, once trapezoidal fitting surface wear, Bolt with latching action it is upper
The automatic small compensation of down stroke meeting, i.e., micro- line increment journey, sideshake can be eliminated, normal with gear self-locking action without influencing to shift gears
It carries out.
Present apparatus specific work process is as follows:
When shift, first passing through electromagnet and lifting Bolt with latching action makes pin tooth be detached from seat tooth between cog, and gib block is retained in bolt
In the guide groove of seat, then gear shifting force pushes shift fork axle and socket to be moved at target gear, in the process gib block with
Guide groove collective effect make shift fork axle and socket around shift fork axle axis rotate or swing suffer restraints, it is ensured that shift normally into
Row.After shift fork axle and socket are moved to target gear, electromagnet, which is fallen, makes pin tooth insertion seat tooth between cog, seat tooth insertion pin tooth tooth
Between and be bonded, so far target gear is just tightly lockked.When target gear is locked under the collective effect of Bolt with latching action and socket
When firmly, axial perturbed force in shift fork axle even if it is big to it is identical as gear shifting force can not make target gear off-gear.
The realization of the above-mentioned gap function that disappears is fully automated, is not required to any intervention.In order to which Bolt with latching action will not be passed through socket
Self-locking position, the trapezoidal bottom in Bolt with latching action pin tooth, socket seat tooth are deviate from the shift fork axle axial direction perturbed force effect passed over
Angle θ needs to meet: 90 ° of > θ > arcctg (μ), in which: μ is Bolt with latching action stepped tooth flank and socket stepped tooth flank
Between coefficient of friction.
Technical effect
Compared with prior art, caused by the utility model can avoid the effect because of shift fork axle by axial perturbed force completely
Off-gear (row of jump) phenomenon, thus the self-locking reliable, safety of gear, also avoid the self-locking steel ball in traditional self-locking mechanism in shift fork
Frequently friction causes related components to wear and fail on axis.Also make transmission gear position using the utility model certainly than tradition
Latch mechanism is more accurate.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the Bolt with latching action schematic diagram that the utility model is equipped with interrupted gib block；
Fig. 3 is the Bolt with latching action schematic diagram that the utility model is equipped with elongated gib block；
Fig. 4 is the utility model socket schematic diagram；
Fig. 5 is pin tooth structural schematic diagram；
Fig. 6, Fig. 7 and Fig. 8 are the utility model electromagnet, Bolt with latching action, linear bearing assembling schematic diagram；
Fig. 9 is pin tooth, pin tooth between cog, seat tooth, seat tooth and mutual relationship (similar shape, same to size) schematic diagram；
Figure 10 is pin tooth, pin tooth between cog, seat tooth, seat tooth between cog (similar shape, different sizes) schematic diagram；
Figure 11 is the utility model application schematic diagram；
In figure: 1 Bolt with latching action, 2 sockets, 3 shift fork axles, 4 linear bearings, 5 electromagnet mounting flanges, 6 electromagnet, 7 are led
It is synchronized to item, 8 pin tooths, 9 teeth, 10 guide grooves, 11 flat wedge configurations, 12T shape slot configuration, 13 threaded configurations, 14 shift forks, 15
Device, h bottom clearance, WxtPin tooth between cog top width, WxbPin tooth between cog bottom width, DxtPin tooth tooth top thickness, DxbPin tooth tooth root thickness, HxPin tooth tooth height,
WztSeat tooth between cog top width, WzbSeat tooth between cog bottom width, DztSeat tooth tooth top thickness, DzbSeat tooth tooth root thickness, HzSeat tooth tooth is high.
Specific embodiment
As shown in Figure 1, the present embodiment includes: the Bolt with latching action 1 of vertical motion and the socket of associated horizontal movement
2, in which: socket 2 is set in shift fork axle 3；Bolt with latching action 1 is equipped at least one set of pin tooth 8 and is parallel to 3 axis of shift fork axle
To gib block 7；The guide groove 10 of at least one set of seat tooth 9 and corresponding gib block 7 is correspondingly provided on socket 2, when arrival mesh
Bolt with latching action 1 is fallen when marking gear and pin tooth 8 is inserted into the seat tooth between cog of socket 2, realize shift fork axle 3 target gear from
Lock.
The correspondence refers to: pin tooth 8 is pairing relationship respectively with 9 between cog of seat tooth, seat tooth 9 and 8 between cog of pin tooth, should be distinguished
For similar shape, same to size.
The tooth form of the pin tooth 8 can be rectangle, trapezoidal, triangle, cylinder, cone, water chestnut cylindricality, the water chestnut with cone
Cylindricality etc., preferably trapezoidal, 9 tooth form of seat tooth of the socket 2 can be rectangle, trapezoidal, triangle or socket 2
Bore hole shape can be cylindrical hole, conical bore, water chestnut post holes or with cone water chestnut post holes.
The between cog of the pin tooth 8, pin tooth 8, seat tooth 9, seat tooth 9 between cog be preferably similar shape, same to size.
The tooth pitch of the pin tooth 8 is equal with the tooth pitch of seat tooth 9, and is equal to shift stroke.
Thickness of the width of the guide groove 10 preferably with gib block 7 matches, and the depth of guide groove 10 is preferably greater than
The height of gib block 7, enabling gib block 7 to constrain socket 2 and shift fork axle 3 will not rotate or put around 3 axial line of shift fork axle
It is dynamic, so that gear shifting action is normally completed.
In order to which the axial perturbed force effect abjection of shift fork axle 3 that Bolt with latching action 1 will not be passed over by socket 2 is self-locking
Position, pin tooth 8 on Bolt with latching action 1,2 seat of honour tooth of socket trapezoidal base angle θ meet: 90 ° of > θ > arcctg (μ), in which: μ is
Coefficient of friction between 2 stepped tooth flank of 1 stepped tooth flank of Bolt with latching action and socket.
The vertical motion, using but be not limited by electromagnet 6 and be connected with Bolt with latching action 1 and be achieved, electromagnet 6
Trapezoidal base angle in 21 pin tooth 8 of retentivity and Bolt with latching action of armature, socket teeth 9 meet 90 ° of > θ > arcctg (μ) from
And being inserted in the pin tooth 8 of Bolt with latching action 1 in 9 between cog of seat tooth of socket 2 will not take off because shift fork axle 3 is by axial perturbed force
Out, when until shifting gears next time, until electromagnet 6 lifts Bolt with latching action 1 again.
As shown in Fig. 6, Fig. 7 and Fig. 8, T-slot is preferably used between the armature and Bolt with latching action 1 of the electromagnet 6
12, flat wedge 11 plus pin or 13 mode of screw thread are connected.
The electromagnet 6 uses but is not limited to push-pull electromagnet 6, pushing-type electromagnet 6, pull-type electromagnet 6, self-sustaining
Pushing-type electromagnet 6, the pull-type electromagnet 6 of self-sustaining etc..
Preferably, the high H of 8 tooth of pin toothxSubtract bottom clearance h and falls stroke less than the high H of 8 tooth of pin tooth less than the lift of electromagnet 6xSubtract bottom clearance
H is again the sum of with the height of gib block 7, and the high H of 9 tooth of seat toothzSubtract lift of the bottom clearance h less than electromagnet 6 and falls stroke less than the high H of 9 tooth of seat toothz
Subtract the sum of 7 height of bottom clearance h and gib block.
The Bolt with latching action 1 preferably makees radial support by linear bearing 4, which uses but be not limited to slide
Dynamic linear bearing 4, rolling linear bearing 4.The linear bearing 4 is that Bolt with latching action 1 provides diameter by 1 cylindrical body shank of Bolt with latching action
To support, gear shifting force is born.
In order to form bottom clearance h, the tooth top thickness D of the pin tooth 8 of the Bolt with latching action 1xtGreater than 9 between cog of seat tooth of socket 2
Bottom width Wzb, and 2 teeth of socket, 9 tooth top thickness DztGreater than 1 pin tooth of Bolt with latching action, 8 between cog bottom width Wxb, make the pin tooth of Bolt with latching action 1
After 8 are fully inserted into 29 between cog of tooth of socket, 8 tooth top of pin tooth and 8 between cog bottom of 9 between cog bottom surface of seat tooth, 9 tooth top of seat tooth and pin tooth
Face keeps certain gap；And 8 flank of pin tooth is bonded with 9 flank gapless of seat tooth, has the function that automatic anti-backlash.
During long-play, the flank binding face of 2 teeth 9 of 1 pin tooth 8 of Bolt with latching action and socket can be worn, but
It is automatic by the stroke up and down of Bolt with latching action 1 to can be realized backlash caused by above-mentioned abrasion by the reasonable bottom clearance h of setting
Small compensation (micro- line increment journey) can eliminate, and be normally carried out without influencing shift and gear self-locking action.
The tooth height and transverse tooth thickness and the number of teeth of pin tooth 8 and seat tooth 9 can be configured according to the size of gear shifting force, tooth height, transverse tooth thickness ruler
It is very little it is bigger, the number of teeth the more, the gear shifting force that can bear is bigger, on the contrary；The gear shifting force that can bear is smaller, and structure size is also got over
It is small.
As shown in figure 11, when shift, electromagnet 6, which first lifts Bolt with latching action 1, inserts the disengaging of pin tooth 8 on Bolt with latching action 1
9 between cog of seat tooth on key seat 2, but gib block 7 is still in the guide groove 10 of socket 2, then shift fork axle 3 with socket 2 together
It is mobile to target gear.When shift fork axle 3 and socket 2 are moved to target gear position, electromagnet 6 falls Bolt with latching action 1 directly
8 embedded seat tooth of pin tooth, 9 between cog on to Bolt with latching action 1, shift fork axle 3 is tightly lockked in the axial direction at this time, is realized reliable
Gear is self-locking.Even if effect of the shift fork axle 3 by axial perturbed force under gear self-locking state, Bolt with latching action 1 is in pin tooth 8
It will not deviate from from socket 2 under support.Axial perturbed force in above-mentioned shift fork axle 3 passes sequentially through socket 2, Bolt with latching action
1, linear bearing 4 is transmitted on case of transmission.Gib block 7 during this on Bolt with latching action 1 is always in socket 2
It is slided in guide groove 10, the movement for making socket 2, shift fork axle 3 rotate or swing around 3 axis of shift fork axle is restrained, gear switching
It can be normally carried out.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the utility model principle and objective with
Different modes carries out local directed complete set to it, and the protection scope of the utility model is subject to claims and not by above-mentioned specific
Implementation is limited, and each implementation within its scope is by the constraint of the utility model.
Claims (14)
1. a kind of transmission gear Multifunctional self-locking unit characterized by comprising the Bolt with latching action of vertical motion and therewith phase
Join the socket of horizontal movement, in which: socket is set in shift fork axle；Bolt with latching action is equipped at least one set of pin tooth；Bolt
At least one set of seat tooth is correspondingly provided on seat.
2. transmission gear Multifunctional self-locking unit according to claim 1, characterized in that set on the Bolt with latching action
It is parallel to the gib block of shift fork axle axial direction, socket, which is equipped with, is parallel to shift fork axle axially and guiding corresponding with gib block
Slot, Bolt with latching action lifts that pin tooth is detached from socket seat tooth between cog and gib block is without departing from the guide groove of socket when shift, dials
Fork shaft drives socket to make gear shifting action in the axial direction, and after reaching target gear, Bolt with latching action is fallen, and pin tooth is inserted into seat tooth tooth
Between in.
3. transmission gear Multifunctional self-locking unit according to claim 1, characterized in that the correspondence refers to: pin
Tooth and seat tooth between cog, seat tooth and pin tooth between cog are pairing relationship respectively.
4. transmission gear Multifunctional self-locking unit according to claim 1, characterized in that the tooth form of the pin tooth is adopted
With rectangle, trapezoidal, triangle, cylinder, cone, water chestnut cylindricality or with cone water chestnut cylindricality, the tooth form of the seat tooth is used
Rectangle, trapezoidal, triangle, or the socket bore is using cylindrical hole, conical bore, water chestnut post holes or with cone water chestnut post holes.
5. transmission gear Multifunctional self-locking unit according to claim 1 or 4, characterized in that the tooth of the pin tooth
Shape and the tooth form of seat tooth are trapezoidal.
6. transmission gear Multifunctional self-locking unit according to claim 2, characterized in that the specific position of the gib block
End is acted in Bolt with latching action, thickness and guide groove match；The guide groove is particularly located at socket between cog bottom, width
It is matched with gib block.
7. transmission gear Multifunctional self-locking unit according to claim 1, characterized in that the pin tooth, pin tooth
Between cog, seat tooth, seat tooth between cog be similar shape, same to size.
8. transmission gear Multifunctional self-locking unit according to claim 1, characterized in that the tooth pitch of the pin tooth with
The tooth pitch of seat tooth is equal, and is equal to shift stroke.
9. the transmission gear Multifunctional self-locking unit according to claim 2 or 6, characterized in that the guide groove
The thickness of width and gib block matches, and the depth of guide groove is greater than the height of gib block.
10. any transmission gear Multifunctional self-locking unit according to claim 1~4 or 6~8, characterized in that institute
Between the tooth top for the pin tooth stated and the between cog bottom of seat tooth, the between cog bottom of the tooth top of seat tooth and pin tooth reasonable clearance is set, i.e.,
Bottom clearance realizes the automatic elimination of backlash caused by abrasion.
11. any transmission gear Multifunctional self-locking unit according to claim 1~4 or 6~8, characterized in that institute
Trapezoidal base angle θ in the pin tooth stated, seat tooth needs to meet: 90 ° of > θ > arcctg (μ), in which: μ is the trapezoidal pin tooth tooth of Bolt with latching action
Coefficient of friction between side and socket trapezoid seat tooth flank.
12. transmission gear Multifunctional self-locking unit according to any one of claims 1 to 4, characterized in that the pin
Tooth tooth top thickness is greater than seat tooth between cog bottom width, and seat tooth tooth top thickness is greater than pin tooth between cog bottom width；Pin tooth tooth height subtracts bottom clearance less than electromagnet
Lift falls stroke and subtracts bottom clearance again the sum of with gib block height less than pin tooth tooth height, and seat tooth tooth height subtracts lift of the bottom clearance less than electromagnet and falls row
Journey is less than seat tooth tooth height and subtracts bottom clearance again the sum of with gib block height, and the pin tooth of Bolt with latching action is made to be inserted into the seat tooth between cog of socket
Afterwards, certain gap is kept between pin tooth tooth top and seat tooth between cog bottom surface, between seat tooth tooth top and pin tooth between cog bottom surface, thus
Ensure that Bolt with latching action pin tooth flank is bonded with socket seat tooth flank gapless, plays the role of automatic anti-backlash, even if pin tooth tooth
Side, seat tooth flank are worn after being used for a long time, and the sideshake generated can still be eliminated automatically.
13. transmission gear Multifunctional self-locking unit according to any one of claims 1 to 4, characterized in that the pin
The sum of tooth tooth top thickness and pin tooth between cog top width are equal to shift stroke, and the sum of the seat tooth tooth top thickness and seat tooth between cog top width are equal to
Shift stroke.
14. transmission gear Multifunctional self-locking unit according to any one of claims 1 to 4, characterized in that the pin
Tooth tooth top thickness is equal to seat tooth tooth top thickness, pin tooth tooth root thickness is equal to seat tooth tooth root thickness, pin tooth between cog bottom width is equal to seat tooth between cog bottom width,
Pin tooth between cog top width is equal to seat tooth between cog top width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820291502.8U CN208331227U (en) | 2018-03-01 | 2018-03-01 | Transmission gear Multifunctional self-locking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820291502.8U CN208331227U (en) | 2018-03-01 | 2018-03-01 | Transmission gear Multifunctional self-locking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331227U true CN208331227U (en) | 2019-01-04 |
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ID=64782903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820291502.8U Active CN208331227U (en) | 2018-03-01 | 2018-03-01 | Transmission gear Multifunctional self-locking unit |
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| Country | Link |
|---|---|
| CN (1) | CN208331227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145555A (en) * | 2019-06-12 | 2019-08-20 | 戚善鸣 | A kind of trapezoid cross section hoof block friction brake |
-
2018
- 2018-03-01 CN CN201820291502.8U patent/CN208331227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145555A (en) * | 2019-06-12 | 2019-08-20 | 戚善鸣 | A kind of trapezoid cross section hoof block friction brake |
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