CN202251512U - Pin coupling and uncoupling device - Google Patents
Pin coupling and uncoupling device Download PDFInfo
- Publication number
- CN202251512U CN202251512U CN2011203884400U CN201120388440U CN202251512U CN 202251512 U CN202251512 U CN 202251512U CN 2011203884400 U CN2011203884400 U CN 2011203884400U CN 201120388440 U CN201120388440 U CN 201120388440U CN 202251512 U CN202251512 U CN 202251512U
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- CN
- China
- Prior art keywords
- pin
- hole
- lock ring
- axle sleeve
- coupling
- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to a pin coupling and uncoupling device for a small four-wheel tractor. The conventional coupling and uncoupling device is an embedded clutch, which is not reliable in coupling and uncoupling control, and the fatigue fracture of a shaft I shaft extension is easily caused. In the pin coupling and uncoupling device, holes are distributed on the external conical surface of a shaft sleeve; a lock ring of the internal conical surface of the shaft sleeve is provided with three notches which are distributed uniformly; a guide sleeve is provided with a lifting pin which passes through a hole of a guide disc, and is fixed with a transmission pin which passes through the guide disc; the lifting pin is provided with two annular grooves; a clamp spring controls the lifting pin through the two annular grooves; the tip of the transmission pin is a cone; the guide sleeve moves axially to drive the transmission pin to enter a hole of the shaft sleeve; and an expander spring is clamped into the other annular groove of the lifting pin. In the pin coupling and uncoupling device, the transmission pin is inserted into the corresponding hole to ensure that two movement parts move synchronously, and a support seat supports a transmission part, so a power output shaft only transfer torque, and is not stressed by axial force, and the pin coupling and uncoupling device works stably and reliably.
Description
Technical field
The utility model relates to a kind of pin formula engaging and disengaging gear that is used for tractor with small four wheels.
Background technique
At present, the belt pulley engaging and disengaging gear that known former tractor with small four wheels is used is to be made up of embedded clutch, axle sleeve, belt pulley, return spring, cam handle etc.This engaging and disengaging gear, clutch for clutch control is unreliable, is prone to take place security incident; Because axle sleeve is directly installed on the I axle shaft extension, so fatigue fracture often takes place I axle shaft extension, causes the hitching machinery cisco unity malfunction; Owing to many reasons, present farm implements does not use I axle transferring power.
Summary of the invention
In order to overcome above-mentioned technical deficiency, the utility model provides a kind of pin formula engaging and disengaging gear that is used for tractor with small four wheels, this pin formula engaging and disengaging gear, and simple in structure, the I axle does not receive radially moment of flexure, and fatigue ruption does not take place, and Security is good.
For solving its technical problem, the technological scheme that the utility model adopted is: by be fixed on the bearing support that the flange that has cover on the little four-wheel transmission tank wall constitutes, driving component, the guide pin bushing that is supported by bearing support constitutes, penetrate in the bearing support end and have disk and be positioned at the axle sleeve on the output shaft; On the disk of axle sleeve outer conical surface is arranged, the hole that is uniformly distributed with is arranged on it, one side the hole has a chamfering; And chamfering periphery links to each other, and is enclosed within the lock ring that the internal conical surface that matches is with it arranged on the axle sleeve, the right flank of lock ring have with axle sleeve on the hole of the proportional corresponding relation in hole; There is chamfering on the one side in hole, and the same side has 3 notches that are uniformly distributed with, and has the positioning disk with lock ring hole and notch corresponding aperture respectively; Have the ejector pin through the positioning disk hole on the guide pin bushing and be fixed with the driving pin through the positioning disk hole, ejector pin has three road circular grooves, and an end axially is fixed on the notch bottom surface of lock ring with jump ring; The width of rebate of lock ring is greater than the diameter of ejector pin, and the other end has the circular groove that has the bloated spring of packing into through the endoporus of guide pin bushing, and bloated spring is against on the circular groove of ejector pin; The termination of driving pin is the cone identical with the cone angle of lock ring chamfering; Guide pin bushing drives driving pin and moves axially, and bloated spring is jumped out the circular groove of ejector pin, and driving pin is through the lock ring corresponding aperture; Insert in the corresponding aperture of axle sleeve, bloated spring snaps in another road annular groove of ejector pin.
The beneficial effect of the utility model is: this pin formula engaging and disengaging gear, be employed under the effect of axial force of mobile controller, and guide pin bushing is together with the nose cone driving pin on it; In the hole that insertion positioning disk, lock ring and axle sleeve circumferentially are uniformly distributed with; At first, the head of nose cone driving pin contacts with chamfering place's point of lock ring hole, and lock collar is moved axially left; Its internal conical surface is contacted with the outer conical surface of the axle sleeve of fixing gradually, make two moving elements synchronous; Owing to adopt bearing support to support transmission part, make a pto transmitting torque, do not receive radial force, therefore, its stable working, reliable.Improved the force-bearing situation of I axle, made that it is more durable, be convenient to maintenance, favorable working performance, efficient is high, and reasonable in design, cost simple in structure is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model pin formula engaging and disengaging gear.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is that the K of the utility model pin formula engaging and disengaging gear Intermediate shaft sleeve is to view.
Fig. 4 is the partial enlarged drawing of I among Fig. 1.
Among the figure 1, bearing support, 2, axle sleeve, 3, driving component, 4, lock ring, 5, positioning disk, 6, ejector pin, 7, the spring that expands, 8, guide pin bushing, 9, driving pin, 10, jump ring.
Embodiment
By be fixed on the bearing support (1) that the flange that has cover on the little four-wheel transmission tank wall constitutes, driving component (3), the guide pin bushing (8) that is supported by bearing support (1) constitutes, and penetrates in the bearing support (1) end and has disk and be positioned at the axle sleeve (2) on the output shaft, on the disk of axle sleeve (2) outer conical surface arranged; The hole that is uniformly distributed with is arranged on it, one side the hole have a chamfering, and the chamfering periphery links to each other; Being enclosed within has the lock ring of the internal conical surface that matches with it (4) on the axle sleeve (2), the right flank of lock ring (4) have with axle sleeve (2) on the hole of the proportional corresponding relation in hole, one side the hole has a chamfering; The same side has 3 notches that are uniformly distributed with; Have the positioning disk (5) with lock ring (4) hole and notch corresponding aperture respectively, have the ejector pin (6) through positioning disk (5) hole on the guide pin bushing (8) and be fixed with the driving pin (9) through positioning disk (5) hole, ejector pin (6) has three road circular grooves; One end axially uses jump ring (10) to be fixed on the notch bottom surface of lock ring (4); The width of rebate of lock ring (4) is greater than the diameter of ejector pin (6), and the other end has the circular groove that has bloated spring (7) of packing into through the endoporus of guide pin bushing (8), and the spring (7) that expands is against on the circular groove of ejector pin (6); The termination of driving pin (9) is the identical cone of cone angle with lock ring (4) chamfering; Guide pin bushing (8) drives driving pin (9) and moves axially, and the spring (7) that expands is jumped out the circular groove of ejector pin (6), and driving pin (9) is through lock ring (4) corresponding aperture; Insert in the corresponding aperture of axle sleeve (2), the spring (7) that expands snaps in another road annular groove of ejector pin (6).
Claims (1)
1. pin formula engaging and disengaging gear that is used for tractor with small four wheels, by be fixed on the bearing support (1) that the flange that has cover on the little four-wheel transmission tank wall constitutes, driving component (3), the guide pin bushing (8) that is supported by bearing support (1) constitutes, it is characterized in that; Penetrate in the bearing support (1) end and have disk and be positioned at the axle sleeve (2) on the output shaft, on the disk of axle sleeve (2) outer conical surface is arranged, the hole that is uniformly distributed with is arranged on it; There is chamfering on the one side in hole, and the chamfering periphery is continuous, and being enclosed within has the lock ring of the internal conical surface that matches with it (4) on the axle sleeve (2); The right flank of lock ring (4) have with axle sleeve (2) on the hole of the proportional corresponding relation in hole, one of the hole has chamfering, same side to have 3 notches that are uniformly distributed with; Have the positioning disk (5) with lock ring (4) hole and notch corresponding aperture respectively, have the ejector pin (6) through positioning disk (5) hole on the guide pin bushing (8) and be fixed with the driving pin (9) through positioning disk (5) hole, ejector pin (6) has three road circular grooves; One end axially uses jump ring (10) to be fixed on the notch bottom surface of lock ring (4); The width of rebate of lock ring (4) is greater than the diameter of ejector pin (6), and the other end has the circular groove that has bloated spring (7) of packing into through the endoporus of guide pin bushing (8), and the spring (7) that expands is against on the circular groove of ejector pin (6); The termination of driving pin (9) is the identical cone of cone angle with lock ring (4) chamfering; Guide pin bushing (8) drives driving pin (9) and moves axially, and the spring (7) that expands is jumped out the circular groove of ejector pin (6), and driving pin (9) is through lock ring (4) corresponding aperture; Insert in the corresponding aperture of axle sleeve (2), the spring (7) that expands snaps in another road annular groove of ejector pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203884400U CN202251512U (en) | 2011-09-28 | 2011-09-28 | Pin coupling and uncoupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203884400U CN202251512U (en) | 2011-09-28 | 2011-09-28 | Pin coupling and uncoupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251512U true CN202251512U (en) | 2012-05-30 |
Family
ID=46112760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203884400U Expired - Fee Related CN202251512U (en) | 2011-09-28 | 2011-09-28 | Pin coupling and uncoupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692223A (en) * | 2019-03-14 | 2020-09-22 | 河北蓝器科技有限公司 | Plug-in type rigid clutch |
-
2011
- 2011-09-28 CN CN2011203884400U patent/CN202251512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692223A (en) * | 2019-03-14 | 2020-09-22 | 河北蓝器科技有限公司 | Plug-in type rigid clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |