CN2711466Y - Gear shifting fork axle locking device for integrated back axle gear box - Google Patents
Gear shifting fork axle locking device for integrated back axle gear box Download PDFInfo
- Publication number
- CN2711466Y CN2711466Y CN 200420052736 CN200420052736U CN2711466Y CN 2711466 Y CN2711466 Y CN 2711466Y CN 200420052736 CN200420052736 CN 200420052736 CN 200420052736 U CN200420052736 U CN 200420052736U CN 2711466 Y CN2711466 Y CN 2711466Y
- Authority
- CN
- China
- Prior art keywords
- bearing pin
- shaft
- declutch shift
- locking device
- shift
- 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.)
- Expired - Fee Related
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- Gear-Shifting Mechanisms (AREA)
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a gear shifting fork axle locking device for an integrated back axle gear box, comprising three roots of fork axles arranged on the gear box. One end of the fork axle is respectively and orderly connected with a corresponding self-locking steel ball and a self-locking spring, and multiple units of grooves are respectively arranged on the other ends of the three roots of the fork axles. A steel ball and a pin shaft are respectively arranged on a position above the same position of the groove of each corresponding fork axle, a pin shaft is sheathed with a spring, and a rocker shaft is arranged on the cover of the gear box arranged on a corresponding position above the pin shaft. The part of the rocker shaft contacting the pin shaft adopts the eccentric structure, and the rocker shaft is connected with a clutch arm through an interlink mechanism. The three roots of the fork axles are in the locked out condition, except the condition of the gear shifting, and the phenomenon that the integrated back axle gear box is disengaged in the operation; at the same time, the self-locking force of the self-locking spring to the fork axles can be reduced, and the gear shifting operation is made to be simple and convenient.
Description
Technical field
The utility model relates to a kind of conjuncted back axle gearbox gear-shift declutch shift shaft locking device.
Background technique
At present, the locking of general conjuncted back axle gearbox gear-shift declutch shift shaft is the structure that adopts by the spring compression steel ball, and the conjuncted back axle gearbox of this structure is easily out of supply at work.Out of supply for preventing, the coupling mechanism force of sliding selector shaft needs very big usually, and therefore the berth-changing strength that needs is also very big, the gear shift difficulty.
Summary of the invention
Technical problem to be solved in the utility model is: provide that a kind of gear shift is light, work the time is difficult for conjuncted back axle gearbox gear-shift declutch shift shaft locking device out of supply.
The technological scheme that its technical problem that solves the utility model adopts is, comprise three declutch shift shafts that are installed on the gearbox, the one end is linked in sequence with corresponding self-locking steel ball and self-locking spring respectively, its structural feature is: the same position at the other end of three declutch shift shafts is respectively equipped with many group grooves, same position top corresponding to each declutch shift shaft groove is sequentially with steel ball and bearing pin, be set with spring on the bearing pin, on the gearbox case lid of corresponding position above the bearing pin, pitman arm shaft is installed; the contact position of pitman arm shaft and described bearing pin is an eccentric structure, and pitman arm shaft is connected with clutch arm by double-action mechanism.
Be provided with steel ball on the top of each bearing pin and the place, contact position of pitman arm shaft.
Described bearing pin is two sections of butt joint up and down, and described spring housing is contained on the epimere bearing pin.
Described double-action mechanism comprises the rocking arm that is connected with the pitman arm shaft axle head, and the other end of rocking arm is hinged with the intermediate rockers that is hinged on the gearbox sidewall by pull bar, and intermediate rockers is hinged by connecting rod and clutch arm.
Described pull bar is divided into upper connecting rod and lower link, and the centre links together by adjusting nut.
After adopting said structure, in the spring compression steel ball locking structure that keeps former declutch shift shaft employing, the other end at declutch shift shaft increases locking device of the present utility model, when handling clutch mechanism; pitman arm shaft turns an angle with the clutch arm double-action mechanism; make the steel ball in each declutch shift shaft groove be in quick condition; it is in not lock state with respect to three declutch shift shafts; carry out gear shift this moment; after gear shift is finished; unclamp on-off control mechanism, the steel ball in the declutch shift shaft groove is at pitman arm shaft; get back to the lock state to three declutch shift shafts under the effect of bearing pin and spring.Because three declutch shift shafts all are in locked state when removing gear shift, can prevent that conjuncted back axle gearbox phenomenon out of supply at work from taking place, can reduce the self-lock force of self-locking spring simultaneously to declutch shift shaft, make shift control very light.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:
Description of drawings
Fig. 1 is the part section structural representation of the utility model side-looking;
Fig. 2 is the structural representation of the utility model side-looking.
Embodiment
Conjuncted back axle gearbox gear-shift declutch shift shaft locking device shown in the drawings, be that three declutch shift shafts 13 are installed on gearbox, the one end is linked in sequence with corresponding self-locking steel ball and self-locking spring respectively, and (this Connecting format is an existing structure, not shown), same position at the other end of three declutch shift shafts 13 is respectively equipped with 3 groups of grooves 14, the group number of groove 14 is identical with the group number of the groove of self-locking steel ball and self-locking spring place end, same position vertical direction corresponding to each declutch shift shaft groove 14 is sequentially with steel ball 2 and lower bearing pin 3 and upper pin 4, be set with spring 5 on the bearing pin 4, on the gearbox case lid 7 of corresponding position above the bearing pin 4, pitman arm shaft 8 is installed, be provided with steel ball 16 on the top of each bearing pin 4 and the place, contact position of pitman arm shaft 8, certainly bearing pin can be one, and have a boss shape, spring 5 is sleeved on bearing pin boss top, the top of bearing pin is hemispherical; pitman arm shaft 8 is an eccentric structure with the contact position of bearing pin or bearing pin top steel ball 16; this eccentric structure is any known structure; guarantee that pitman arm shaft 8 is in the lock state 2 pairs of declutch shift shafts 13 of steel ball in the gearbox working state; after pitman arm shaft 8 turns an angle; the steel ball in the declutch shift shaft groove is in quick condition, and it is in not lock state with respect to three declutch shift shafts.Pitman arm shaft 8 is connected with clutch arm 15 by double-action mechanism, this double-action mechanism comprises the rocking arm 17 that is connected with pitman arm shaft 8 axle heads; the other end of rocking arm 17 is linked together with lower link 10 by the adjustment nut 9 of upper connecting rod 6 by the centre; lower link 10 is hinged with the intermediate rockers 11 that is hinged on the gearbox sidewall, and intermediate rockers is hinged by connecting rod 12 and clutch arm 15.Said structure can reduce the self-lock force of self-locking spring to declutch shift shaft, makes shift control very light, has both solved the problem of conjuncted back axle gearbox gear-shift difficulty, can prevent that again conjuncted back axle gearbox phenomenon out of supply at work from taking place.
Claims (5)
1, a kind of conjuncted back axle gearbox gear-shift declutch shift shaft locking device, comprise three declutch shift shafts (13) that are installed on the gearbox, the one end is linked in sequence with corresponding self-locking steel ball and self-locking spring respectively, it is characterized in that being respectively equipped with many group grooves (14) at the same position of the other end of three declutch shift shafts (13), same position top corresponding to each declutch shift shaft groove (14) is sequentially with steel ball (2) and bearing pin, be set with spring (5) on the bearing pin, on the gearbox case lid (7) of corresponding position above the bearing pin, pitman arm shaft (8) is installed; pitman arm shaft (8) is an eccentric structure with the contact position of described bearing pin, and pitman arm shaft (8) is connected with clutch arm (15) by double-action mechanism.
2, conjuncted back axle gearbox gear-shift declutch shift shaft locking device according to claim 1 is characterized in that being provided with steel ball (16) on the top of each bearing pin and the place, contact position of pitman arm shaft (8).
3, conjuncted back axle gearbox gear-shift declutch shift shaft locking device according to claim 1 and 2 is characterized in that described bearing pin is two sections of butt joint up and down, and described spring (5) is sleeved on the epimere bearing pin.
4, conjuncted back axle gearbox gear-shift declutch shift shaft locking device according to claim 1 and 2, it is characterized in that described double-action mechanism comprises the rocking arm (17) that is connected with pitman arm shaft (8) axle head; the other end of rocking arm (17) is hinged with the intermediate rockers (11) that is hinged on the gearbox sidewall by pull bar, intermediate rockers is hinged by connecting rod (12) and clutch arm (15).
5, conjuncted back axle gearbox gear-shift declutch shift shaft locking device according to claim 4 is characterized in that described pull bar is divided into upper connecting rod (6) and lower link (10), and the centre links together by adjusting nut (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052736 CN2711466Y (en) | 2004-07-28 | 2004-07-28 | Gear shifting fork axle locking device for integrated back axle gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420052736 CN2711466Y (en) | 2004-07-28 | 2004-07-28 | Gear shifting fork axle locking device for integrated back axle gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711466Y true CN2711466Y (en) | 2005-07-20 |
Family
ID=36192570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420052736 Expired - Fee Related CN2711466Y (en) | 2004-07-28 | 2004-07-28 | Gear shifting fork axle locking device for integrated back axle gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711466Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092286A (en) * | 2010-12-18 | 2011-06-15 | 襄樊宇清电动汽车有限公司 | Electric-drive mechanical type variable-speed power transmission system and control system thereof |
-
2004
- 2004-07-28 CN CN 200420052736 patent/CN2711466Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092286A (en) * | 2010-12-18 | 2011-06-15 | 襄樊宇清电动汽车有限公司 | Electric-drive mechanical type variable-speed power transmission system and control system thereof |
| CN102092286B (en) * | 2010-12-18 | 2012-09-12 | 襄阳宇清传动科技有限公司 | Electric-drive mechanical type variable-speed power transmission system and control system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050720 |