CN208041117U - A kind of air valve dual control shift fork axle assembly - Google Patents
A kind of air valve dual control shift fork axle assembly Download PDFInfo
- Publication number
- CN208041117U CN208041117U CN201820379314.0U CN201820379314U CN208041117U CN 208041117 U CN208041117 U CN 208041117U CN 201820379314 U CN201820379314 U CN 201820379314U CN 208041117 U CN208041117 U CN 208041117U
- Authority
- CN
- China
- Prior art keywords
- mandril
- shift fork
- fork axle
- hole
- air valve
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of air valve dual control shift fork axle assembly, belong to transmission technology field, including shift fork axle, the closed slot hole in one end in an axial direction is provided in shift fork axle, return spring and mandril are installed in the slot hole, return spring is located at the blind end of slot hole, mandril is located at the open end of slot hole, it is provided with radial through-hole on the side wall of slot hole, ejector pin is installed in radial through-hole, pin hole is provided on mandril, when mandril does not stress, one end of ejector pin is located in pin hole, when the mandril by axial force axially movable when, mandril push ejector pin movement.Ejector pin is pushed by mandril, controls gas path control valve, mandril return is pushed by return spring, is realized to band rear power takeoff i.e. centre position air cylinder structure in piston rest, the control to gas path control valve is simple in structure, and reliability is high, at low cost.
Description
Technical field
The utility model is related to transmission technology field, specially a kind of air valve dual control shift fork axle assembly.
Background technology
For the multi gear position mechanical transmission of major-minor case structure, ensure that auxiliary box synchronizer one is scheduled on gear when main tank is put into gear,
It is the significant design based on safety and for auxiliary box synchronizer protection.It is general using mechanical to the speed changer completely newly developed
Interlocking structure；But matured product is improved, then generally uses pneumatic type interlocking structure, pneumatic type interlocking structure is simple, major-minor
Case is not interfere with each other and easy to assemble.But to the speed changer with rear power takeoff, that is, centre position air cylinder structure, because of odd-side reasons in structure etc.
Mechanical interlocking structure can not be used at present；It is then by increasing power takeoff and mutual lock control at present to pneumatic type interlocking structure
Air valve, or modification gas circuit control program are realized；This certainly will increase the complexity of control gas circuit, reduce system reliability, simultaneously
Increase just dress and maintenance cost.
Utility model content
For problems of the prior art, the utility model provides a kind of air valve dual control shift fork axle assembly, can solve
Speed changer certainly with rear power takeoff, that is, centre position air cylinder structure uses pneumatic type interlocking structure, caused by control gas circuit answer
It is miscellaneous, the low and of high cost problem of reliability.
The utility model is to be achieved through the following technical solutions：
A kind of air valve dual control shift fork axle assembly, including shift fork axle are provided with one end closing in an axial direction in the shift fork axle
Slot hole, return spring and mandril are installed in the slot hole, the return spring is located at the blind end of slot hole, the mandril position
In being provided with radial through-hole on the open end of slot hole, the side wall of the slot hole, ejector pin, the top are installed in the radial through-hole
Pin hole is provided on bar, when mandril does not stress, one end of ejector pin is located in pin hole, when the mandril by axial force in an axial direction
When movement, mandril pushes ejector pin movement, and then controls gas path control valve.
Optionally, it is provided with first conical surface on the pin hole, second with first cone match is provided on ejector pin
The conical surface, when mandril by axial force axially movable when, first conical surface push second conical surface ejector pin is moved.
Optionally, position corresponding with gas path control valve mandril is arranged in shift fork axle in the radial through-hole.
Optionally, the mandril is provided with seal groove close to one end that slot hole is open, and sealing ring is equipped in seal groove, with
Ensure the sealing of mandril and shift fork axle.
Optionally, the blind end of one end of the return spring and the slot hole connects, the other end and ejector pin contact
Connection.
Optionally, when the ejector pin is located in pin hole, return spring is in free state.
Optionally, air valve dual control shift fork axle assembly one end is connected with gearshift fork, and the other end is located in cylinder block, described
Shift fork axle is fixedly connected with piston, and air valve dual control shift fork axle assembly is located at the end of one end and centre position cylinder in cylinder block and lives
Plug contact.
Optionally, the shift fork axle is multi-diameter shaft, and the side of piston positions the other side by the shaft shoulder and positioned by nut.
Optionally, cone tank is provided in the shift fork axle at radial through-hole, the cone tank is for pushing gas circuit to control
Valve mandril.
Compared with prior art, the utility model has technique effect beneficial below：
The utility model discloses a kind of air valve dual control shift fork axle assembly, including shift fork axle, is provided in an axial direction in shift fork axle
The closed slot hole in one end, return spring and mandril are installed in the slot hole, return spring is located at the blind end of slot hole, mandril
Positioned at the open end of slot hole, it is provided with radial through-hole on the side wall of slot hole, ejector pin is installed in radial through-hole, is provided on mandril
Pin hole, when mandril does not stress, one end of ejector pin is located in pin hole, when the mandril by axial force axially movable when, top
Bar pushes ejector pin movement.Ejector pin is pushed by mandril, controls gas path control valve, mandril return is pushed by return spring, is realized
To band rear power takeoff, that is, centre position air cylinder structure in piston rest, the control to gas path control valve is simple in structure, reliably
Property it is high, it is at low cost.
Further, by the way that first conical surface is arranged on pin hole, second conical surface, first conical surface and second are set on ejector pin
Cone match use realizes, and ejector pin movement is pushed when mandril moves, simple in structure, reliability is high.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for air valve dual control shift fork axle assembly that the utility model embodiment provides；
Fig. 2 is a kind of partial structural diagram for air valve dual control shift fork axle assembly that the utility model embodiment provides；
Fig. 3 be Fig. 2 M-M to sectional view；
Fig. 4 is a kind of usage state diagram for air valve dual control shift fork axle assembly that the utility model embodiment provides.
In figure：1 is gearshift fork, and 2 shells, 3 be gas path control valve, and 4 be cylinder block, and 5 be piston, and 6 be centre position
Cylinder piston, 7 air valve dual control shift fork axle assemblies, 8 be shift fork axle, and 9 be return spring, and 10 be ejector pin, and 11 be mandril, and 12 be O-shaped
Sealing ring.
Specific implementation mode
The utility model is described in further detail with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
As depicted in figs. 1 and 2, a kind of air valve dual control shift fork axle assembly, including shift fork axle 8 are provided in the shift fork axle 8
The closed slot hole in one end in an axial direction, return spring 9 and mandril 11 are equipped in the slot hole, and the return spring 9 is located at length
The blind end in hole, the mandril 11 are located at the open end of slot hole, radial through-hole, the radial direction are provided on the side wall of the slot hole
Ejector pin 10 is installed in through-hole, pin hole is provided on the mandril 11, when mandril 11 does not stress, one end of ejector pin 10 is located at pin
Kong Zhong, when the mandril 11 by axial force axially movable when, mandril 11 push ejector pin 10 move, and then control gas circuit control
Valve 3.
It is provided with first conical surface on pin hole, second conical surface with first cone match is provided on ejector pin 10, works as top
Bar 11 by axial force axially movable when, first conical surface push second conical surface make ejector pin 10 move.
As shown in figure 3, position corresponding with gas path control valve mandril is arranged in shift fork axle 8 in radial through-hole.Mandril 11 leans on
One end of nearly slot hole opening is provided with seal groove, and sealing ring is equipped in seal groove, to ensure the close of mandril 11 and shift fork axle 8
Envelope.
The blind end of one end of return spring 9 and the slot hole connects, and the other end and mandril 11 connect.Work as top
When pin 10 is located in pin hole, return spring 9 is in free state.
As shown in figure 4, air valve dual control shift fork axle assembly one end is connected with gearshift fork 1, the other end is located at cylinder block 4
Interior, the shift fork axle 8 is fixedly connected with piston 5, and air valve dual control shift fork axle assembly is located at the end and centre of one end in cylinder block 4
Position cylinder piston 6 contacts.
Wherein, shift fork axle 8 is multi-diameter shaft, and the side of piston 5 positions the other side by the shaft shoulder and positioned by nut.Shift fork axle
Cone tank is provided on 8 at radial through-hole, the cone tank is for pushing gas path control valve mandril.
A kind of course of work for air valve dual control shift fork axle assembly that the utility model embodiment provides is as follows：
As shown in figure 4, air valve dual control shift fork axle assembly left end is connected with gearshift fork 1 for hanging shelves, right side is mounted on
It in cylinder block 4, is connect by nut with piston 5, right end can be contacted with centre position cylinder piston 6；Gas path control valve 3 is mounted on
On shell 2, mandril 11 is contacted with 8 slotting position of shift fork axle.Cylinder block 4 is assemblied in shell 2, is an entirety.When piston 5
When being moved left and right under gas pressure, shift fork axle assembly is driven to move left and right, wherein left side air inlet is to hang low L grades to the right, right side
Air inlet is to hang high H gears to the left.Pressure gas channel control valve mandril is realized gas circuit control by the fluting in shift fork axle 8.When full-vehicle control is opened
It closes and opens, when 6 position shown in Fig. 3 of cylinder piston of centre position, piston 5 and shift fork axle assembly will be parked in figure under gas pressure
Show centre position, needs the function of realizing pressure gas path control valve mandril at this time.
It is machined with slot hole in shift fork axle 8, wherein return spring 9 and mandril 11 are assembled successively, the fluting suit gas circuit of mandril 11
Control valve mandril realizes the translation after mandril 11 is pressurized, return and sealing with 8 inner hole of shift fork axle.Shift fork axle 8 and gas circuit
Control valve mandril corresponding position is slotted, and hole is machined with, wherein being equipped with ejector pin 10,10 lower end of ejector pin is stretched into 11 through-hole of mandril,
For limiting and anti-rotation, while 10 conical surface of ejector pin and 11 cone match of mandril, when realizing that 11 right side of mandril is pressurized, mandril 11 pushes
Ejector pin 10, pressure gas channel control valve mandril realize that the second of gas circuit controls again.Then work as 11 right atrial pressures of mandril, that is, centre position gas
The cylinder piston 6 cancel when, mandril 11 can return spring 9 effect under return, to ensure that ejector pin 10 can be on the top of gas path control valve 3
Light return under bar 11 acts on, the break-make without influencing gas path control valve 3.
Compared to existing shift fork axle, shift fork axle is only changed to shift fork axle assembly, that is, realizes the double control to air valve mandril,
When i.e. without external force penetrator ram, ejector pin is absorbed in shift fork axis hole, while being blocked mandril and prevented its pop-up, when shift fork axle moves left and right,
Control flume normal control air valve mandril；When there is external force penetrator ram, ejector pin is exited by mandril, pressure valve mandril, realizes the second weight
Control.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of air valve dual control shift fork axle assembly, which is characterized in that including shift fork axle (8), edge is provided on the shift fork axle (8)
The axial closed slot hole in one end is equipped with return spring (9) and mandril (11), return spring (9) position in the slot hole
In the blind end of slot hole, the mandril (11) is located at the open end of slot hole, is provided with radial through-hole on the side wall of the slot hole, institute
It states and ejector pin (10) is installed in radial through-hole, pin hole is provided on the mandril (11), when mandril (11) does not stress, ejector pin
(10) one end is located in pin hole, when the mandril (11) by axial force axially movable when, mandril (11) push ejector pin
(10) it moves, and then controls gas path control valve (3).
2. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that be provided with first on the pin hole
The conical surface is provided with second conical surface with first cone match on ejector pin (10), when mandril (11) by axial force in an axial direction
When movement, first conical surface pushes second conical surface that ejector pin (10) is moved.
3. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that the radial through-hole setting is being dialled
Position corresponding with gas path control valve mandril on fork shaft (8).
4. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that the mandril (11) is close to slot hole
One end of opening is provided with seal groove, and sealing ring is equipped in seal groove, to ensure the sealing of mandril (11) and shift fork axle (8).
5. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that the one of the return spring (9)
The blind end of end and the slot hole connects, and the other end and mandril (11) connect.
6. a kind of air valve dual control shift fork axle assembly as claimed in claim 5, which is characterized in that when the ejector pin (10) is located at pin
When in hole, return spring (9) is in free state.
7. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that air valve dual control shift fork axle assembly one
End is connected with gearshift fork (1), and the other end is located in cylinder block (4), and the shift fork axle (8) is fixedly connected with piston (5), gas
Valve dual control shift fork axle assembly is located at the end and centre position cylinder piston (6) contact of cylinder block (4) interior one end.
8. a kind of air valve dual control shift fork axle assembly as claimed in claim 7, which is characterized in that the shift fork axle (8) is ladder
Axis, the side of piston (5) position the other side by the shaft shoulder and are positioned by nut.
9. a kind of air valve dual control shift fork axle assembly as described in claim 1, which is characterized in that radial on the shift fork axle (8)
Through hole is provided with cone tank, and the cone tank is for pushing gas path control valve mandril.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379314.0U CN208041117U (en) | 2018-03-20 | 2018-03-20 | A kind of air valve dual control shift fork axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820379314.0U CN208041117U (en) | 2018-03-20 | 2018-03-20 | A kind of air valve dual control shift fork axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041117U true CN208041117U (en) | 2018-11-02 |
Family
ID=63948686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820379314.0U Withdrawn - After Issue CN208041117U (en) | 2018-03-20 | 2018-03-20 | A kind of air valve dual control shift fork axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266527A (en) * | 2018-03-20 | 2018-07-10 | 陕西法士特齿轮有限责任公司 | A kind of air valve dual control shift fork axle assembly |
-
2018
- 2018-03-20 CN CN201820379314.0U patent/CN208041117U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266527A (en) * | 2018-03-20 | 2018-07-10 | 陕西法士特齿轮有限责任公司 | A kind of air valve dual control shift fork axle assembly |
| CN108266527B (en) * | 2018-03-20 | 2023-10-10 | 陕西法士特齿轮有限责任公司 | Air valve double-control shifting fork shaft assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181102 Effective date of abandoning: 20231010 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181102 Effective date of abandoning: 20231010 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |