CN204041757U - With the driving-shaft assembly of safe concealed pin - Google Patents
With the driving-shaft assembly of safe concealed pin Download PDFInfo
- Publication number
- CN204041757U CN204041757U CN201420471288.6U CN201420471288U CN204041757U CN 204041757 U CN204041757 U CN 204041757U CN 201420471288 U CN201420471288 U CN 201420471288U CN 204041757 U CN204041757 U CN 204041757U
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- pin
- counterbore
- internal spline
- spline
- extension
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Abstract
The utility model discloses a kind of driving-shaft assembly with safe concealed pin, comprise transmission shaft, the two ends of transmission shaft have outer fork tube respectively and interior pipe is pitched, and outer fork tube and interior pipe are pitched to pitch with spline respectively and be connected, spline fork pelmatozoa, shank arranges internal spline, internal spline engages with external splines, arranges a counterbore respectively in shank two opposite sides, and counterbore side all arranges the breach being convenient to fitting operation, between the bottom of two counterbores, internal spline positioning hole is set; External splines is arranged external splines location arc groove, internal spline positioning hole and external splines are located in the axially locating hole that formed joined together by arc groove and are arranged plunger pin, and the length that plunger pin exposes axially locating bore portion is less than the degree of depth of counterbore.The utility model safety coefficient is greatly improved, and the working life of product, reflection effect was very good also than that pin configuration transmission shaft exposed was high in the past.
Description
Technical field
The utility model relates to a kind of driving-shaft assembly with safe concealed pin.
Background technique
On transmission shaft of agricultural machine, the two ends of transmission shaft are connect output terminal and input end with internal spline respectively, output terminal and input end are a splined shaft respectively, be connected with the internal spline of transmission axle head, individual pin also must be had after spline joint to fix, for convenience of the dismounting of transmission shaft, often be designed to Quick-connection pin, but in the market, general pin is all outside exposed, and great majority still exceed fork part, part is had to expose, when transmission shaft in the running, the part exposed easily is suspended to the odd job in field, very dangerous.
Model utility content
The purpose of this utility model is exactly that provide a kind of driving-shaft assembly with safe concealed pin, object allows the pin of fixing spline not expose, and because of the reason of transmission shaft pin, security incident occurs when avoiding agricultural machinery to operate in order to solve the problem.
To achieve these goals, the utility model adopts following technological scheme:
A kind of driving-shaft assembly with safe concealed pin, comprise transmission shaft, the two ends of described transmission shaft have outer fork tube respectively and interior pipe is pitched, described outer fork tube and interior pipe are pitched to pitch with spline respectively and are connected by Hooke's joint, described spline fork pelmatozoa, described shank arranges internal spline, and described internal spline engages with external splines, it is characterized in that
Arrange a counterbore respectively in shank two opposite sides, described counterbore side all arranges the breach being convenient to fitting operation, between the bottom of two counterbores, arranges internal spline positioning hole;
Described external splines is arranged external splines location arc groove, described internal spline positioning hole and external splines are located in the arc groove axially locating hole formed joined together and are arranged plunger pin, to be located by inside and outside spline, the length that described plunger pin exposes axially locating bore portion is less than the degree of depth of counterbore.
Preferably: described internal spline positioning hole has lower opening section, mesopore section, upper hole section from lower to upper, upper and lower hole section internal diameter is identical, and is greater than the internal diameter of mesopore section;
Described plunger pin has the main part in column, described main part arranges extension, described extension has the first extension in column and the second extension in closing in taper from lower to upper, the external diameter of the first extension is less than the external diameter of main part, plunger pin is arranged in internal spline positioning hole, main part is placed in lower opening section, extension is through mesopore section, upper hole section, and extend in counterbore, volute spring is arranged on extension, its top is connected with the head of the second taper section, and bottom pushes against the bottom of epimere.
Compared with prior art, the utility model has following beneficial effect: the utility model safety coefficient is greatly improved, and the working life of product, reflection effect was very good also than that pin configuration transmission shaft exposed was high in the past.
Accompanying drawing explanation
Fig. 1 is the spline fork plan view adopting conventional pin fixing in background technique.
Fig. 2 is the spline fork right elevation adopting conventional pin fixing in background technique.
Fig. 3 is the spline fork rear view adopting conventional pin fixing in background technique.
Fig. 4 is C-C sectional view in Fig. 1.
Fig. 5 is the driving-shaft assembly structural drawing with safe concealed pin in embodiment.
Fig. 6 is A-A sectional view in Fig. 5.
Fig. 7 is spline fork side view in embodiment.
Fig. 8 is embodiment's plunger pin structural drawing.
Fig. 9 is volute spring structural drawing in embodiment.
In figure, 11-outer fork tube, pipe fork in 12-, 13-central siphon, 2-Hooke's joint, 3-spline is pitched, 31-counterbore, 41-main part, 42-first extension, 43-second extension, 44-volute spring.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 5 to Fig. 9, a kind of driving-shaft assembly with safe concealed pin, comprise transmission shaft, the two ends of described transmission shaft have outer fork tube respectively and interior pipe is pitched, described outer fork tube and interior pipe are pitched to pitch with spline respectively and are connected by Hooke's joint, described spline fork pelmatozoa, described shank arranges internal spline, described internal spline engages with external splines, in shank two opposite sides, one counterbore is set respectively, described counterbore side all arranges the breach being convenient to fitting operation, between the bottom of two counterbores, arranges internal spline positioning hole; Described external splines is arranged external splines location arc groove, described internal spline positioning hole and external splines are located in the arc groove axially locating hole formed joined together and are arranged plunger pin, to be located by inside and outside spline, the length that described plunger pin exposes axially locating bore portion is less than the degree of depth of counterbore.
Then explain internal spline positioning hole, described internal spline positioning hole has lower opening section, mesopore section, upper hole section from lower to upper, and upper and lower hole section internal diameter is identical, and is greater than the internal diameter of mesopore section; Described plunger pin has the main part in column, described main part arranges extension, described extension has the first extension in column and the second extension in closing in taper from lower to upper, the external diameter of the first extension is less than the external diameter of main part, plunger pin is arranged in internal spline positioning hole, main part is placed in lower opening section, extension is through mesopore section, upper hole section, and extend in counterbore, volute spring is arranged on extension, its top is connected with the head of the second taper section, and bottom pushes against the bottom of epimere.
This product, by design counterbore, is installed to pin in counterbore, allow pin be hidden in fork play the counterbore of protective action within, not exposed and exceed propeller shaft yoke subdivision, be unlikely to be suspended to foreign material on the ground because of pin and then to occur peril.
The counterbore of this product specification is while cut away, and namely counterbore side has breach, and when this is conducive to installing transmission shaft, thumb can shift certain position onto pin, convenient installation
In addition, shank is installed the position of pin, namely the position of lead plug sub-aperture, the counterbore of design forges when forging.
After installation, the length that plunger pin exposes axially locating bore portion is not more than the degree of depth of counterbore to pin, and after pin installs, pin can not be out exposed, is arranged in counterbore.
Conveniently load and unload transmission shaft, when design counterbore, the surrounding of counterbore is (side of counterbore arranges breach) of cutting away, like this when installing transmission shaft, convenience thumb pins one side of pin, pin is made to push another side to, if counterbore does not cut away, because counterbore is too little, thumb just can not fill in counterbore completely, and pin just can not shift position onto completely.The internal spline of the transmission shaft just external splines that can not be installed on equipment gets on.
The foregoing is only preferred implementation of the present utility model, protection domain of the present utility model is not limited in above-mentioned mode of execution, and every technological scheme belonging to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, the some improvement carried out under the prerequisite not departing from principle of the present utility model, these improvement also should be considered as protection domain of the present utility model.
Claims (2)
1. the driving-shaft assembly with safe concealed pin, comprise transmission shaft, the two ends of described transmission shaft have outer fork tube respectively and interior pipe is pitched, described outer fork tube and interior pipe are pitched to pitch with spline respectively and are connected by Hooke's joint, described spline fork pelmatozoa, described shank arranges internal spline, and described internal spline engages with external splines, it is characterized in that
Arrange a counterbore respectively in shank two opposite sides, described counterbore side all arranges the breach being convenient to fitting operation, between the bottom of two counterbores, arranges internal spline positioning hole;
Described external splines is arranged external splines location arc groove, described internal spline positioning hole and external splines are located in the arc groove axially locating hole formed joined together and are arranged plunger pin, to be located by inside and outside spline, the length that described plunger pin exposes axially locating bore portion is less than the degree of depth of counterbore.
2. the driving-shaft assembly of band safe concealed pin according to claim 1, is characterized in that:
Described internal spline positioning hole has lower opening section, mesopore section, upper hole section from lower to upper, and upper and lower hole section internal diameter is identical, and is greater than the internal diameter of mesopore section;
Described plunger pin has the main part in column, described main part arranges extension, described extension has the first extension in column and the second extension in closing in taper from lower to upper, the external diameter of the first extension is less than the external diameter of main part, plunger pin is arranged in internal spline positioning hole, main part is placed in lower opening section, extension is through mesopore section, upper hole section, and extend in counterbore, volute spring is arranged on extension, its top is connected with the head of the second taper section, and bottom pushes against the bottom of epimere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471288.6U CN204041757U (en) | 2014-08-20 | 2014-08-20 | With the driving-shaft assembly of safe concealed pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471288.6U CN204041757U (en) | 2014-08-20 | 2014-08-20 | With the driving-shaft assembly of safe concealed pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041757U true CN204041757U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471288.6U Active CN204041757U (en) | 2014-08-20 | 2014-08-20 | With the driving-shaft assembly of safe concealed pin |
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| Country | Link |
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| CN (1) | CN204041757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870598A (en) * | 2017-03-17 | 2017-06-20 | 福州荣林机械有限公司 | A kind of super large pivot angle transmission mechanism |
-
2014
- 2014-08-20 CN CN201420471288.6U patent/CN204041757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870598A (en) * | 2017-03-17 | 2017-06-20 | 福州荣林机械有限公司 | A kind of super large pivot angle transmission mechanism |
| CN106870598B (en) * | 2017-03-17 | 2022-12-27 | 福州荣林机械有限公司 | Super large pivot angle drive mechanism |
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| GR01 | Patent grant |