CN206918229U - A kind of adjustable speed changer of odd-side fork shaft self-lock force - Google Patents
A kind of adjustable speed changer of odd-side fork shaft self-lock force Download PDFInfo
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- CN206918229U CN206918229U CN201720865516.1U CN201720865516U CN206918229U CN 206918229 U CN206918229 U CN 206918229U CN 201720865516 U CN201720865516 U CN 201720865516U CN 206918229 U CN206918229 U CN 206918229U
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- speed changer
- odd
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- fork shaft
- side fork
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Abstract
The utility model belongs to automotive transmission field, and in particular to a kind of adjustable speed changer of odd-side fork shaft self-lock force, including the pneumatic top cover of speed changer, odd-side fork shaft and ripple pearl screw.Axis hole is provided with the pneumatic top cover of speed changer, odd-side fork shaft is placed in the axis hole；The pneumatic top cover of speed changer is provided with the axis direction positioning screw hole vertical with the axis hole, and the odd-side fork shaft is provided with self-locking annular groove, and ripple pearl screw is screwed in positioning screw hole, and blocks the self-locking annular groove.Self-locking spring, bolt, the structure that steel ball combines are replaced with ripple pearl screw, self-lock force size can adjust, convenient disassembly.And ripple pearl screw is used, be not in produce gearshift secondary pulse power, the phenomenon of baneful influence is produced to shift-feel.
Description
Technical field
The utility model belongs to automotive transmission field, and in particular to a kind of adjustable speed changer of odd-side fork shaft self-lock force.
Background technology
Speed changer fork shaft self-locking device is widely used on various automobile, and it is to prevent shifter of transmission from entering gear that it, which is acted on,
After there is off-gear, phenomenon of trip stopping.
Heavy vehicle is in order to meet from starting to walk to different demands of running at high speed, to generally require to set more gear, at this
In the case of kind, conventional gearbox can not accommodate so many structure, and strength problem easily occurs in long power transmission shaft, because
This, more gear speed-changings are realized using major-minor case structure.
At present, the odd-side fork shaft self-locking device of most of speed changer is all used and combined by self-locking spring, bolt, steel ball
Structure.Bolt is withstood in self-locking spring one end, and the other end directly withstands self-locking steel ball.
2 weak points, one be present in the structure：In shift process, between self-locking steel ball and shift fork axle, self-locking spring
Caused frictional force substantially belongs to sliding friction.With the elimination of synchronous moment of friction in speed changer synchronizing process, this rubs
Gearshift secondary pulse power can produced by wiping power, and baneful influence is produced to shift-feel.Secondly：The structure can not be pneumatic according to odd-side
Top cover air pressure size adjusts self-locking device power, can not be put into gear when causing air pressure too small, and coupling mechanism force is inadequate when air pressure is excessive, and fills
Matching somebody with somebody wastes time and energy.
Found by the retrieval to prior art, Chinese patent literature CN202100702U discloses one kind and is used for vapour
The self-locking mechanism of car speed changer, including self-locking screw, self-locking spring, spring fastening, from lock slide, self-locking steel ball and shift fork axle,
Self-locking spring be socketed on that spring fastening is outer and its upper/lower terminal respectively with self-locking screw and self-locking shoe contact, from lock slide with
Spring fastening is fixedly connected, and the upper and lower side of self-locking steel ball contacts with from lock slide and shift fork axle respectively.The structure is due to self-locking steel
For ball with being that point contacts from lock slide, caused friction is rolling friction, reduces the frictional resistance of self-locking mechanism, is advantageous to shift gears
The lifting of feel, meanwhile, increase oil groove from lock slide, increase lubricant effect, further reduce coefficient of rolling friction.
Although the program solves the presence due to sliding friction, can to shift-feel produce baneful influence the problem of.But
Self-locking device power can not be adjusted according to the pneumatic top cover air pressure size of odd-side by still suffering from, and can not be put into gear when causing air pressure too small, air pressure
The problem of coupling mechanism force is inadequate when excessive, and assemble up and compare prior art and more waste time and energy.
The content of the invention
The purpose of this utility model is the deficiency for existing structure, there is provided a kind of frictional resistance is small, self-lock force is adjustable and
The adjustable speed changer of odd-side fork shaft self-lock force of convenient disassembly.
The utility model is achieved through the following technical solutions：
A kind of adjustable speed changer of odd-side fork shaft self-lock force, including the pneumatic top cover of speed changer, odd-side fork shaft and ripple pearl screw；
Axis hole is provided with the pneumatic top cover of speed changer, the odd-side fork shaft is connected with the axis hole rotary moveable；The speed changer gas
Dynamic top cover is provided with the axis direction positioning screw hole vertical with the axis direction of the axis hole, and the positioning screw hole and the ripple
Pearl screw matches；The odd-side fork shaft, which is provided with, to be used to coordinate the self-locking annular groove for realizing self-locking with ripple pearl screw.
Self-locking spring, bolt, the structure that steel ball combines are replaced with ripple pearl screw, self-lock force size is revolved by ripple pearl screw
Enter depth decision, can adjust at any time, and the structure convenient disassembly.In ripple pearl screw, spring and steel ball are fixed in same groove,
The relative displacement of horizontal direction is not present in both, therefore does not also deposit sliding friction, is not in incidental in existing structure
Gearshift secondary pulse power is produced, the phenomenon of baneful influence is produced to shift-feel.
Further, the self-locking annular groove includes high-grade self-locking annular groove and low-grade self-locking annular groove.
Further, the positioning screw hole is at close endface position on the right side of the pneumatic top cover of the speed changer.
Positioning screw hole is positioned close to right side opening position, speed changer centre position is vacated, gear shift is selected for setting
Mechanism, improve space availability ratio.
Further, in addition to end cap, the end cap are fixedly connected on the right side of the pneumatic top cover of the speed changer.
End cap is set to prevent foreign matter from falling into speed changer to cause damage to reach the effect of sealing odd-side fork shaft.
Further, in addition to cylinder and cylinder head, the cylinder right openings, the cylinder head and the right side of the cylinder
Opening matches；The cylinder and cylinder head are fixedly connected with the pneumatic top cover of the speed changer, and are provided with the cylinder head logical
Hole, the odd-side fork shaft stretch out out of described cylinder and entered through the through hole in the pneumatic top cover of the speed changer.
Further, the left end of the odd-side fork shaft is provided with piston, the cylinder and piston, cylinder and cylinder head, speed changer
Pneumatically sealing ring is equipped between top cover and cylinder head, cylinder head and odd-side fork shaft.
Sealing ring is set between each connecting portion of the adjustable speed changer of odd-side fork shaft self-lock force, to reach sealing effectiveness.
Brief description of the drawings
Fig. 1 is a kind of adjustable speed changer structure schematic diagram of odd-side fork shaft self-lock force of the present embodiment.
Fig. 2 is the present embodiment ripple pearl screw structural representation.
Accompanying drawing marks：The pneumatic top cover of 10- speed changers；11- axis holes；12- positioning screw holes；20- odd-side fork shafts；21- self-locking rings
Groove；211- top grade self-locking annular grooves；212- low grade self-locking annular grooves；22- pistons；30- ripple pearl screws；31- springs；32- steel balls；40-
End cap；50- cylinders；60- cylinder head；61- through holes；70- sealing rings.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", " interior ", " outer "
Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly
Type and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore it is not intended that to limitation of the present utility model.
As shown in figure 1, a kind of adjustable speed changer of odd-side fork shaft self-lock force of the present embodiment, including the pneumatic top cover of speed changer
10th, odd-side fork shaft 20 and ripple pearl screw 30.Axis hole 11 is provided with the pneumatic top cover 10 of speed changer, odd-side fork shaft 20 is installed in this axis hole
In 11, and can in the axis hole flexible motion.
In order to realize the auto-lock function of odd-side fork shaft 20, on the pneumatic top cover 10 of speed changer with the vertical direction of axis hole 11
Upper setting positioning screw hole 12, sets self-locking annular groove 21, it is described fixed that the ripple pearl screw 30 is screwed on the odd-side fork shaft 20
In the screw 12 of position, and block the self-locking annular groove 21.
The structure coordinated using ripple pearl screw 30 and positioning screw hole 12, the depth that self-lock force can screw according to ripple pearl screw 30
It is adjusted, and the structure convenient disassembly.
As shown in Fig. 2 being using another advantage of ripple pearl screw 30, the spring 31 and steel ball 32 in ripple pearl screw 30 are solid
It is scheduled in same groove, in the absence of the relative displacement of horizontal direction, therefore is also not present because the presence of sliding friction causes to produce
Shift gears secondary pulse power, to shift-feel produce baneful influence the shortcomings that.
In the present embodiment, self-locking annular groove 21 includes high-grade self-locking annular groove 211 and low-grade self-locking annular groove 212, the odd-side fork
The left end of axle 20 is provided with piston 22, and during low-grade air inlet, air inlet is located at the left side of piston 22, and gas push piston 22 is together with odd-side fork shaft
20 move right, until ripple pearl screw 30 is caught in low-grade self-locking annular groove 212, realize low-grade auto-lock function；When being switched to top grade
During air inlet, now air inlet is located at the right side of piston 22, promotes piston 22 to be moved to the left together with odd-side fork shaft 20 during air inlet, while secondary
Case fork shaft 20 compresses ripple pearl screw 30, and spring moves up, until ripple pearl screw 30 is caught in high-grade self-locking annular groove 211.
Preferably, the positioning screw hole 12 is located at the pneumatic right side of top cover 10 of the speed changer at endface position, will
The structure setting close to the pneumatic right side of top cover 10 of speed changer opening position, leave centre position for gear-selecting-shifting mechanism, improve
Space availability ratio.
In the present embodiment, in addition to end cap 40, the end cap 40 are fixedly connected on the pneumatic right side of top cover 10 of the speed changer,
And the end cap 40 stretches out to form a groove along the axis hole 11.Odd-side fork shaft 20 is covered with end cap 40, prevents foreign matter
Fall into, and end cap 40 is arranged to structure with groove, to reduce the requirement to the thickness of the pneumatic top cover of speed changer 10, reach loss of weight
Effect.
In the present embodiment, in addition to cylinder 50 and cylinder head 60, the cylinder 50 are placed in the pneumatic top cover 10 of the speed changer
Left side, and right openings install the cylinder head 60, is provided with through hole 61 in the cylinder head 60, odd-side fork shaft 20 is from the gas
Stretch out in cylinder 50 and enter through the through hole 61 inside the pneumatic top cover 10 of speed changer.The cylinder 50 and piston 22, cylinder 50
Sealing ring is equipped between the pneumatic top cover 10 of cylinder head 60, speed changer and cylinder head 60, cylinder head 60 and odd-side fork shaft 20.
In a word, preferred embodiment of the present utility model is the foregoing is only, it is all not to limit the utility model
Made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in this practicality
Within new protection domain.
Claims (6)
- A kind of 1. adjustable speed changer of odd-side fork shaft self-lock force, it is characterised in that：Including the pneumatic top cover of speed changer（10）, odd-side fork Axle（20）And ripple pearl screw（30）；Axis hole is provided with the pneumatic top cover of speed changer（11）, the odd-side fork shaft（20）With it is described Axis hole（11）Rotary moveable connects；The pneumatic top cover of speed changer（10）It is provided with axis direction and the axis hole（11）Axis The vertical positioning screw hole in direction（12）, and the positioning screw hole（12）With the ripple pearl screw（30）Match；The odd-side fork Axle（20）It is provided with and is used for and ripple pearl screw（30）Coordinate the self-locking annular groove for realizing self-locking（21）.
- 2. the adjustable speed changer of odd-side fork shaft self-lock force according to claim 1, it is characterised in that：The self-locking annular groove （21）Including high-grade self-locking annular groove（211）With low-grade self-locking annular groove（212）.
- 3. the adjustable speed changer of odd-side fork shaft self-lock force according to claim 1, it is characterised in that：The positioning screw hole （12）Located at the pneumatic top cover of the speed changer（10）Right side is at endface position.
- 4. the adjustable speed changer of odd-side fork shaft self-lock force according to claim any one of 1-3, it is characterised in that：Also include End cap（40）, the end cap（40）It is fixedly connected on the pneumatic top cover of the speed changer（10）Right side.
- 5. the adjustable speed changer of odd-side fork shaft self-lock force according to claim any one of 1-3, it is characterised in that：Also include Cylinder（50）And cylinder head（60）, the cylinder（50）Right openings, the cylinder head（60）With the cylinder（50）Right side Opening matches；The cylinder（50）And cylinder head（60）With the pneumatic top cover of the speed changer（10）It is fixedly connected, and the gas Cylinder cap（60）It is interior to be provided with through hole（61）, the odd-side fork shaft（20）From the cylinder（50）It is interior to stretch out and pass through the through hole（61） Into the pneumatic top cover of the speed changer（10）It is interior.
- 6. the adjustable speed changer of odd-side fork shaft self-lock force according to claim 5, it is characterised in that：The odd-side fork shaft （20）Left end be provided with piston（22）, the cylinder（50）And piston（22）, cylinder（50）And cylinder head（60）, speed changer it is pneumatic Top cover（10）And cylinder head（60）, cylinder head（60）With odd-side fork shaft（20）Between be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865516.1U CN206918229U (en) | 2017-07-17 | 2017-07-17 | A kind of adjustable speed changer of odd-side fork shaft self-lock force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865516.1U CN206918229U (en) | 2017-07-17 | 2017-07-17 | A kind of adjustable speed changer of odd-side fork shaft self-lock force |
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| Publication Number | Publication Date |
|---|---|
| CN206918229U true CN206918229U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720865516.1U Active CN206918229U (en) | 2017-07-17 | 2017-07-17 | A kind of adjustable speed changer of odd-side fork shaft self-lock force |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681425A (en) * | 2018-12-03 | 2019-04-26 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump head and the screw compressor using it |
-
2017
- 2017-07-17 CN CN201720865516.1U patent/CN206918229U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681425A (en) * | 2018-12-03 | 2019-04-26 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump head and the screw compressor using it |
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