CN208397280U - It is double to arrange gear shifting actuating mechanism surely - Google Patents
It is double to arrange gear shifting actuating mechanism surely Download PDFInfo
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- CN208397280U CN208397280U CN201820912166.4U CN201820912166U CN208397280U CN 208397280 U CN208397280 U CN 208397280U CN 201820912166 U CN201820912166 U CN 201820912166U CN 208397280 U CN208397280 U CN 208397280U
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- shift fork
- gear
- fork axle
- shifting
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Abstract
A kind of pair is arranged gear shifting actuating mechanism surely, it include: main shift fork axle and gear shift fork axle in parallel, wherein: main shift fork axle is equipped with shifting shifting block and main waveform groove, gear shift fork axle is equipped with gear wave mode slot, intermediate V-arrangement face in main waveform groove is in contact with the master positioning pin for the positioning of handball neutral gear, and the intermediate V-arrangement face of gear wave mode slot is in contact with the shift fork positioning pin for the positioning of shift fork axle neutral gear.The utility model passes through the cooperation of shift fork axle positioning pin and shift fork axis-open-type molded line, eliminates the influence of the parts associated dimensional tolerances such as shift fork axle, shift fork, shell, it is ensured that the gap between shifting block and shift fork axle.Reduce number of parts, reduce the requirement to element precision, realizes shock insulation and the line feed consistent function of journey, improve feel.
Description
Technical field
The utility model relates to a kind of technology in manual transmission field, specifically a kind of double fixed row's shift execution machines
Structure.
Background technique
Manual transmission used in currently used manual gear of vehicle, especially passenger car is in gear shifting actuating mechanism
All there are certain intervals between each part, pass to the attenuating of driver's cabin handball by operating mechanism to avoid gearbox vibration and change comfortably
Property.It is different to will cause each corresponding idle stroke when changing in the case where tolerance stack.These idle stroke warps of different sizes
After operating mechanism transmitting is crossed than amplification, each actual line feed journey disunity of driver's cabin handball is caused, shifting comfort is reduced.
Utility model content
The utility model In view of the above shortcomings of the prior art, proposes that a kind of pair is arranged gear shifting actuating mechanism surely, is passed through
The parts associated dimensional tolerances such as shift fork axle, shift fork, shell are eliminated in the cooperation of shift fork axle positioning pin and shift fork axle wave shape groove
It influences, it is ensured that the gap of shifting block and shift fork axle；Do not increase number of parts, improve element precision in the case where realize shock insulation and
Enter a new line the consistent function of journey, improves feel.
The utility model is achieved through the following technical solutions:
The utility model includes: main shift fork axle and gear shift fork axle in parallel, in which: main shift fork axle is equipped with choosing and changes
Keep off shifting block and main waveform groove, gear shift fork axle is equipped with gear wave mode slot, the intermediate V-arrangement face in main waveform groove with for handball sky
The master positioning pin of shelves positioning is in contact, the intermediate V-arrangement face of gear wave mode slot and the shift fork positioning pin for the positioning of shift fork axle neutral gear
It is in contact.
The gear shift fork axle is equipped with for the groove with shifting shifting block clearance fit.
The main waveform groove and gear wave mode slot is open type molded line structure.
Technical effect
Compared with prior art, the utility model is formed using positioning pin shell and main waveform groove sidewall simplifies king's font
The positioning of gear shift neutral gear is concentrated in same group part with gearshift limit function, utmostly eliminates and make because tolerance is accumulative by slot
At handball at gear shift stroke inconsistence problems.By the cooperation of shift fork axle positioning pin and shift fork axis-open-type molded line, shift fork is eliminated
The influence of the parts associated dimensional tolerance such as axis, shift fork, shell, it is ensured that the gap of shifting block and shift fork axle.Do not increase number of parts,
Improving in the case that element precision requires realizes shock insulation and the consistent function of gear shift stroke.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is main waveform groove and main shift fork shaft connection place structure enlargement diagram；
Fig. 3 is that shifting block and gear shift fork shaft connection place structure enlargement diagram are changed in choosing；
Fig. 4 is open type molded line structure schematic diagram；
Fig. 5 is to simplify king's word slot structure schematic diagram, and wherein a is neutral position, and b is shift position in place；
In figure: main shift fork axle 1, master positioning pin 2, shifting shifting block 3, gear shift fork axle 4, shift fork positioning pin 5, main waveform groove
6, gear wave mode slot 7, groove 8.
Specific embodiment
As shown in Figure 1, arranging gear shifting actuating mechanism surely for one kind that the present embodiment is related to is double, comprising: main shift fork axle 1 and and its
Parallel gear shift fork axle 4, in which: main shift fork axle 1 is equipped with shifting shifting block 3 and main waveform groove 6, sets in gear shift fork axle 4
There is gear wave mode slot 7.
The shifting shifting block 3 is fixedly connected by resilient key with main shift fork axle 1
The main waveform groove 6 is matched with master positioning pin 2, and the gear wave mode slot 7 and shift fork positioning pin 4 match
It closes.
As shown in Fig. 5 a, b, it is V among the structure that the main waveform groove and gear wave mode slot, which are open type molded line structure,
Shape face, two sides are monocline face, in which: realize neutral gear positioning, two sides monocline in the V-arrangement inclined-plane being in contact for the steel ball with positioning pin
Face is tried hard to keep using locating pin spring demonstrate,proves main shift fork axle, gear shift fork axle always to mobile into shelves direction.
The gear shift fork axle 4 is equipped with groove 8, the top clearance cooperation of groove 8 and shifting shifting block 3；
After the completion of gear shift the spring force of shift fork positioning pin 5 make gear shift fork axle 4 drive its upper shift fork always with synchronizer
Contact, to guarantee that gear shift changes the position of rear above-mentioned groove 8 into and do not influenced by parts such as shift forks, completely by synchronizer gear sleeve position
It determines.
As shown in Fig. 2, neutral gear positioning, the ball of shift fork positioning pin 4 are realized in the master positioning pin 2 and the cooperation of main waveform groove 6
The heart is overlapped with the middle line of gear wave mode slot 7.Master positioning pin steel ball is connected by rotation riveting with shell, the steel ball centre of sphere and housing axis
It essentially coincides.Main waveform groove two sidewalls and middle line are symmetrical, and the spring force of master positioning pin acts on main shift fork axle after the completion of shift
Power is kept in contact master positioning pin shell with main waveform groove sidewall.
Shift gears stroke L=0.5 × (L for the main shift fork axle two sides1-D1), in which: L1For main waveform groove width, L2For choosing
Shift shifting block width, D1For main positioning pin housing diameter.Being achieved at handball stroke of shifting gears is main shift fork axle stroke multiplied by biography
Ratio of two term, since main shift fork axle is consistent with positioning shift stroke, to realize that various gears shift stroke is consistent at handball.
As depicted in figs. 1 and 2, the shell of the master positioning pin 2 and the side wall of main waveform groove 6, which form, simplifies king's font
Slot, as shown in figure 5, rear positioning pin shell contacts the gear shift row to realize traditional king's word slot with main shift fork axle waveform groove in place for gear shift
Degree bit function.
The side wall of the master positioning pin 2 and main waveform groove 6 is preferably rigid contact, so that sense is clear in place for shift.
Shift fork locating pin spring power makes gear shift fork axle that shift fork be driven to contact always with synchronizer after the completion of shift, thus
Change rear gear shift fork axle gap position into is not influenced by parts such as shift forks, is determined by synchronizer gear sleeve position.
In the present apparatus, the shift stroke L of the gear shift fork axle 74Meet (L, L+0.5 × (L3-L2)), in which: L is
Main shift fork axle two sides shift stroke, L3For recess width, L2For shifting shifting block width, it is achieved in shifting after the completion of shift
The groove gap of shifting block and position gear shift fork axle cooperates, to reach shock insulation function.
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 (7)
1. a kind of pair is arranged gear shifting actuating mechanism surely characterized by comprising main shift fork axle and gear shift fork axle in parallel,
Wherein: main shift fork axle is equipped with shifting shifting block and main waveform groove, and gear shift fork axle is equipped with gear wave mode slot, in main waveform groove
Intermediate V-arrangement face be in contact with the master positioning pin for the positioning of handball neutral gear, the intermediate V-arrangement face of gear wave mode slot with for shift fork
The shift fork positioning pin of axis neutral gear positioning is in contact.
2. according to claim 1 pair is arranged gear shifting actuating mechanism surely, characterized in that the gear shift fork axle, which is equipped with, to be used
In the groove with shifting shifting block clearance fit.
3. according to claim 1 pair is arranged gear shifting actuating mechanism surely, characterized in that the main waveform groove and gear wave mode
Slot is open type molded line structure.
4. according to claim 3 pair is arranged gear shifting actuating mechanism surely, characterized in that be among the open type molded line structure
V-arrangement face, two sides are monocline face.
5. according to claim 1 pair is arranged gear shifting actuating mechanism surely, characterized in that the shell of the master positioning pin and master
The side wall of waveform groove, which forms, simplifies king's font groove.
6. according to claim 1 pair is arranged gear shifting actuating mechanism surely, characterized in that the shift row of the gear shift fork axle
Journey L4Meet (L, L+0.5 × (L3-L2)), in which: L is main shift fork axle two sides shift stroke, L3For recess width, L2For shifting
Shifting block width.
7. double gear shifting actuating mechanism is arranged surely according to claim 1 or 6, characterized in that the main shift fork axle two sides are changed
Keep off stroke L=0.5 × (L1-D1), in which: L1For main waveform groove width, L2For shifting shifting block width, D1For main positioning pin shell
Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912166.4U CN208397280U (en) | 2018-06-13 | 2018-06-13 | It is double to arrange gear shifting actuating mechanism surely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912166.4U CN208397280U (en) | 2018-06-13 | 2018-06-13 | It is double to arrange gear shifting actuating mechanism surely |
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| Publication Number | Publication Date |
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| CN208397280U true CN208397280U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820912166.4U Active CN208397280U (en) | 2018-06-13 | 2018-06-13 | It is double to arrange gear shifting actuating mechanism surely |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503262A (en) * | 2020-05-12 | 2020-08-07 | 株洲齿轮有限责任公司 | Control method for shifting fork shaft of transmission |
-
2018
- 2018-06-13 CN CN201820912166.4U patent/CN208397280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111503262A (en) * | 2020-05-12 | 2020-08-07 | 株洲齿轮有限责任公司 | Control method for shifting fork shaft of transmission |
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