CN201588927U - Improved transfer case shifting fork - Google Patents
Improved transfer case shifting fork Download PDFInfo
- Publication number
- CN201588927U CN201588927U CN2009202815641U CN200920281564U CN201588927U CN 201588927 U CN201588927 U CN 201588927U CN 2009202815641 U CN2009202815641 U CN 2009202815641U CN 200920281564 U CN200920281564 U CN 200920281564U CN 201588927 U CN201588927 U CN 201588927U
- Authority
- CN
- China
- Prior art keywords
- transfer case
- transmission shaft
- shifting fork
- fork
- crotch
- 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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Abstract
The utility model provides an improved transfer shifting fork which belongs to an oilfield production device and is provided with a semicircular fork frame; the inner end of a friction block nested in a mounting base on the end part of the fork frame is clamped in a concave groove on the outer circumferential surface of an internal-tooth gear, the middle part of the fork frame is fixed with a transmission shaft running through the transfer case body through a shaft sleeve, the transmission shaft on both sides of the transfer case body are respectively mounted with two pins, and the outer end of the transmission shaft is provided with a pull handle. As the transfer case shifting fork adopts the semicircular fork frame, the balanced force application is ensured during shifting process, the separation and reunion of two gears are realized smoothly, the use effect is good, two pins mounted on the transmission shaft can effectively prevent the axial movement of the transmission shaft and further improve the use effect. The improved transfer case shifting fork has simple and reasonable structure, and is easy for modification.
Description
Technical field
The utility model provides a kind of field produces device, especially a kind of transfer case shifting fork device that is used for the transmission clutch.
Background technique
At present, in the oilfield process, sometimes to use haulage vehicle such as heavy-duty car, carry the folding and unfolding machinery that is moving Work machine such as oil well inner cable and arrive the job site, driving Work machine work with the power of haulage vehicle then, is transfer case with the power transmission of haulage vehicle to the transmission clutch on the Work machine.On existing transfer case, circular crotch is arranged, and the crotch middle part is equipped with two abrading blocks relatively, and module card is in the groove of internal-gear outer round surface, crotch is fixed together by axle sleeve and the transmission shaft that passes the transfer case casing, and handle is pulled in the outer end of transmission shaft.Owing to adopt circular crotch, cause the crotch discontinuity equalization, can not realize treating the clutch of two gears of clutch swimmingly.And transmission shafts to polarization relatively poor, have certain axial float after long-term the use, make it be difficult to clutch swimmingly more, the using effect of transfer case is relatively poor.
Summary of the invention
The utility model wants the technical solution problem to be, a kind of improved transfer case shifting fork device is provided, to improve using effect.
The utility model is to realize like this, a kind of improved transfer case shifting fork device, it has semicircular crotch, the inner of the abrading block of suit in the fitting seat of crotch end, be stuck in the groove of internal-gear outer round surface, the crotch middle part is fixed together by axle sleeve and the transmission shaft that passes the transfer case casing, is separately installed with pin and another pin on the transmission shaft of transfer case casing both sides, and handle is pulled in the outer end of transmission shaft.
Adopt the transfer case shifting fork device of said structure, owing to adopted semicircular crotch, stress equalization when stirring, can realize treating the clutch of two gears of clutch swimmingly, using effect is good, two pins installing on the transmission shaft can prevent from the axial float of transmission shaft from further to have improved using effect effectively.And simple and reasonable, transform easily.
Description of drawings
Fig. 1 is the schematic representation of the utility model structure.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, a kind of improved transfer case shifting fork device of the utility model, it has semicircular crotch 6, the inner of the abrading block 3 of suit in the fitting seat 4 of crotch end, be stuck in the groove 5 of internal-gear 1 outer round surface, the crotch middle part is fixed together by axle sleeve 11 and the transmission shaft 10 that passes transfer case casing 2, is separately installed with pin 8 and another pin 9 on the transmission shaft of transfer case casing both sides, and handle 12 is pulled in the outer end of transmission shaft.
Axle sleeve 11 can be fixed together by bolt 7 and transmission shaft.The length of abrading block, thickness can suitably strengthen, to improve its wear-resisting property.
During use, other parts and mechanism in the transfer case do not change.The shape and structure of internal-gear is not changed yet.Its operating principle also with existing transfer case on shifting fork device identical.During action, driving transmission shaft by handle rotates, transmission shaft just drives the shift fork swing by axle sleeve, it is upper and lower mobile that shift fork just drives internal-gear by abrading block, realize the engagement of internal-gear and power input gear or separate, and then the commentaries on classics that realizes the power output gear that meshes together with internal-gear with do not change, promptly realized the clutch of transfer motion power between haulage vehicle, the work mechanism.
Claims (1)
1. improved transfer case shifting fork device, it is characterized in that, it has semicircular crotch (6), the inner of the abrading block (3) of the interior suit of the fitting seat of crotch end (4), be stuck in the groove (5) of internal-gear (1) outer round surface, the crotch middle part is fixed together by axle sleeve (11) and the transmission shaft (10) that passes transfer case casing (2), is separately installed with pin (8) and another pin (9) on the transmission shaft of transfer case casing both sides, and handle (12) is pulled in the outer end of transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202815641U CN201588927U (en) | 2009-11-27 | 2009-11-27 | Improved transfer case shifting fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202815641U CN201588927U (en) | 2009-11-27 | 2009-11-27 | Improved transfer case shifting fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588927U true CN201588927U (en) | 2010-09-22 |
Family
ID=42748707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202815641U Expired - Fee Related CN201588927U (en) | 2009-11-27 | 2009-11-27 | Improved transfer case shifting fork |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865037A (en) * | 2012-10-08 | 2013-01-09 | 陶德明 | Gear shifting mechanism of power head with adjustable multi-level rotational speed |
-
2009
- 2009-11-27 CN CN2009202815641U patent/CN201588927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865037A (en) * | 2012-10-08 | 2013-01-09 | 陶德明 | Gear shifting mechanism of power head with adjustable multi-level rotational speed |
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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: 20100922 Termination date: 20101127 |