CN203114871U - Drive shaft - Google Patents
Drive shaft Download PDFInfo
- Publication number
- CN203114871U CN203114871U CN 201320165578 CN201320165578U CN203114871U CN 203114871 U CN203114871 U CN 203114871U CN 201320165578 CN201320165578 CN 201320165578 CN 201320165578 U CN201320165578 U CN 201320165578U CN 203114871 U CN203114871 U CN 203114871U
- Authority
- CN
- China
- Prior art keywords
- rod
- connecting rod
- drive shaft
- hole
- utility
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a drive shaft, which comprises a first connecting rod, a polish rod, a knurl rod and a second connecting rod which are sequentially connected; the end part of the first connecting rod is provided with a central hole, thread holes penetrate through the side wall of the polish rod, hatching knurls are arranged at the outer circular face of the knurl rod, a hole is formed in the end of the second connecting rod, and an inner spline is arranged in the hole. The drive shaft disclosed by the utility model is provided with inner splines and outer splines at both ends, thus enabling the connecting part to be uniformly stressed in the force driving process, avoiding the stress concentration, bearing larger force than a flat key under the condition of the same diameter and being good in guidance; the drive shaft adopts the smooth transition in the whole instead of the step shaft type with a greatly changed diameter, thus further reducing the stress concentration, improving the loading capacity, and prolonging the service life; and the drive shaft is high in strength, strong in loading capacity and good in guidance.
Description
Technical field
The utility model relates to a kind of transmission shaft, particularly a kind of transmission shaft.
Background technique
Transmission shaft is used for driving torque, therefore, in the power transmission process, can produce the stress concentration phenomenon at the shaft shoulder or keyway place, and traditional transmission shaft adopts the flat key transmission, when bearing big load, can make flat key fracture or distortion; And common transmission shaft all is multidiameter shaft, can produce big stress at shaft shoulder place and concentrate, and has reduced its working life, when load is crossed ambassador, can cause shaft shoulder place to twist off.
The model utility content
(1) technical problem that will solve
It is big that the technical problems to be solved in the utility model provides a kind of intensity, the transmission shaft that transmission is stable.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of transmission shaft, comprise the head rod 1, polished rod 2, annular knurl bar 3 and second connecting rod 4 that link to each other successively, the end of described head rod 1 offers center hole 11, the sidewall of described polished rod 2 is penetrated with tapped hole 21, the periphery of described annular knurl bar 3 is provided with hatching knurling, and it is porose 41 that the end of described second connecting rod 4 is offered, and is provided with internal spline in the described hole.
Further, described polished rod 2 is frustoconic shape.
Further, described second connecting rod 4 is frustoconic shape.
Further, the screw thread of described tapped hole 21 is left-handed thread.
(3) beneficial effect
The utility model transmission shaft is equipped with internal spline and external splines at the axle two ends, in the power transmission process, can make the joint stressed evenly, has avoided stress to concentrate, and under the situation with diameter, can bear bigger power than flat key, and guidance quality is good; The whole rounding off that adopts, the multidiameter shaft form that does not adopt diameter to suddenly change has further reduced stress and has concentrated, and has improved its load-carrying ability, has prolonged working life; The utility model transmission shaft, intensity is big, and load-carrying ability is strong, and guidance quality is good.
Description of drawings
Fig. 1 is the structural representation of the utility model transmission shaft.
Embodiment
Consult Fig. 1, the utility model provides a kind of transmission shaft, comprise the head rod 1, polished rod 2, annular knurl bar 3 and second connecting rod 4 that link to each other successively, the end of head rod 1 offers center hole 11, the sidewall of polished rod 2 is penetrated with tapped hole 21, and the screw thread in the tapped hole 21 is left-handed thread, and the periphery of annular knurl bar 3 is provided with hatching knurling, it is porose 41 that the end of second connecting rod 4 is offered, and is provided with internal spline in this hole; In the present embodiment, polished rod 2 is truncated conical shape, and namely polished rod 2 two ends diameters are identical with head rod 1, annular knurl bar 3 respectively, and second connecting rod 4 also is frustoconic shape, and namely second connecting rod, 4 bigger diameter end diameters are identical with the diameter of annular knurl bar 3; When polished rod 2 sidewalls are worn tapped hole, mill a step surface on its surface earlier, also can be to open shoulder hole, tapping in shoulder hole more earlier.
The utility model transmission shaft is equipped with internal spline and external splines at the axle two ends, in the power transmission process, can make the joint stressed evenly, has avoided stress to concentrate, and under the situation with diameter, can bear bigger power than flat key, and guidance quality is good; The whole rounding off that adopts, the multidiameter shaft form that does not adopt diameter to suddenly change has further reduced stress and has concentrated, and has improved its load-carrying ability, has prolonged working life; The utility model transmission shaft, intensity is big, and load-carrying ability is strong, and guidance quality is good.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. transmission shaft, it is characterized in that: comprise the head rod (1), polished rod (2), annular knurl bar (3) and second connecting rod (4) that link to each other successively, the end of described head rod (1) offers center hole (11), the sidewall of described polished rod (2) is penetrated with tapped hole (21), the periphery of described annular knurl bar (3) is provided with hatching knurling, porose (41) are offered in the end of described second connecting rod (4), are provided with internal spline in the described hole.
2. transmission shaft as claimed in claim 1 is characterized in that: described polished rod (2) is frustoconic shape.
3. transmission shaft as claimed in claim 1 or 2 is characterized in that: described second connecting rod (4) is frustoconic shape.
4. transmission shaft as claimed in claim 1, it is characterized in that: the screw thread of described tapped hole (21) is left-handed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165578 CN203114871U (en) | 2013-04-03 | 2013-04-03 | Drive shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165578 CN203114871U (en) | 2013-04-03 | 2013-04-03 | Drive shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114871U true CN203114871U (en) | 2013-08-07 |
Family
ID=48895221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165578 Expired - Fee Related CN203114871U (en) | 2013-04-03 | 2013-04-03 | Drive shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486130A (en) * | 2013-08-21 | 2014-01-01 | 蚌埠市广瑞机械有限公司 | Novel universal driving shaft |
| CN105840635A (en) * | 2016-04-29 | 2016-08-10 | 苏州鼎隆精密机械制造有限公司 | Combined connecting shaft |
-
2013
- 2013-04-03 CN CN 201320165578 patent/CN203114871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486130A (en) * | 2013-08-21 | 2014-01-01 | 蚌埠市广瑞机械有限公司 | Novel universal driving shaft |
| CN105840635A (en) * | 2016-04-29 | 2016-08-10 | 苏州鼎隆精密机械制造有限公司 | Combined connecting shaft |
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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: 20130807 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |