CN203560322U - Three-fork double-side steel ball type universal coupling with constant angular velocity - Google Patents
Three-fork double-side steel ball type universal coupling with constant angular velocity Download PDFInfo
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- CN203560322U CN203560322U CN201320762415.3U CN201320762415U CN203560322U CN 203560322 U CN203560322 U CN 203560322U CN 201320762415 U CN201320762415 U CN 201320762415U CN 203560322 U CN203560322 U CN 203560322U
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- steel ball
- universal coupling
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- ball type
- driven shaft
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 55
- 239000010959 steel Substances 0.000 title claims abstract description 55
- 230000008878 coupling Effects 0.000 title claims abstract description 48
- 238000010168 coupling process Methods 0.000 title claims abstract description 48
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 19
- 230000001154 acute effect Effects 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model relates to a three-fork double-side steel ball type universal coupling with constant angular velocity. The universal coupling comprises a driving shaft, three forks, steel balls, a conical flared hole, a driven shaft and the like. The driving shaft is connected with the three forks which are distributed at the angle of 120 degrees, and two raceway grooves with equal arc radius and arranged symmetrically are formed on each fork along rod directions thereof. Three raceway grooves which are symmetrical mutually along the conical flared hole are formed on the conical flared hole of the driven shaft at the interval of 120-degree angle, and the arc radius of the raceway grooves of the conical flared hole is equal to that of the three forks. The steel balls are mounted in the raceway grooves of the three forks and the raceway grooves of the conical flared hole of the driven shaft. When an included angle is formed between axes of the driving shaft and the driven shaft, the steel balls roll along the axial directions of the raceway grooves, mutual connections and relationships of the three forks, the steel balls and the conical flared hole guarantee transmission with constant angular velocity and transmission of large angular torque. The three-fork double-side steel ball type universal coupling with the constant angular velocity has the advantages of simple structure, low manufacturing cost, convenience in mounting, high transmission capacity and the like.
Description
Technical field
The utility model relates to Hooks coupling universal coupling field, relates to specifically the two-sided steel ball type angular speed universal coupling of a kind of novel three fork arm.
Background technique
In mechanical transmission course, when there is certain angle between the axis of driving shaft and driven axle, need to utilize Hooks coupling universal coupling to carry out the transmission of torque.The kind of the coupling that at present machinery industry is used is a lot, wherein conventional cross Hooks coupling universal coupling, the Rzeppa type Hooks coupling universal coupling etc. of mainly containing.Cross-axle universal shaft coupling cross axle can produce additional dynamic load in transmission, causes shock and vibration and noise, so be not suitable for high speed and the excessive occasion of between centers angle.Though Rzeppa type Hooks coupling universal coupling can be realized the transmission of large torque and be the transmission of isogonism speed, this class Hooks coupling universal coupling exists complex structure, and requirement on machining accuracy is high, and quenching hardness is large, and fabricating cost is high, and bearing capacity is little, the using scope shortcoming such as suffer restraints.
The purpose of this utility model is to overcome the shortcoming existing in existing angular speed universal coupling technology, seeks to manufacture and design a kind of novelty simple in structure, and fabricating cost is low, easy for installation, the two-sided steel ball type angular speed universal coupling of three fork arms that bearing capacity is large.
Model utility content
In order to realize above-mentioned model utility object, the utility model provides a kind of novelty simple in structure, and fabricating cost is low, easy for installation, the two-sided steel ball type angular speed universal coupling of three fork arms that bearing capacity is large.
The technological scheme that the utility model adopts is as follows:
The utility model selects metallic material machining to be made, mainly by parts such as driving shaft, three fork arms, steel ball, taper enlarging, driven shafts, formed, three fork arms and driving shaft are fixedly linked, taper enlarging is fixedly connected with driven shaft, and steel ball is arranged between three fork arm raceway grooves and taper enlarging raceway groove; Three fork arms comprise that three of being fixed on driving shaft become the fork arm of 120 ° of distributions, and every fork arm has along bar direction the raceway groove that two arc radiuses equate and are arranged symmetrically with; Three fork arms extend with certain acute angle a along driving shaft axial direction; Taper enlarging is fixedly connected with driven shaft, and taper enlarging is extended with certain acute angle b along driven shaft axial direction; In taper enlarging, along enlarging direction, be shaped with the three pairs of taper enlarging raceway grooves of 120 ° of being separated by, every pair of taper enlarging raceway groove is symmetrical, and the arc radius of the raceway groove of taper enlarging equates with the arc radius of the raceway groove of three fork arms; During installation, six steel balls are arranged on respectively in the raceway groove on three fork arms, then three fork arms are installed to together with steel ball in the raceway groove of driven shaft taper enlarging, the centre of sphere of steel ball is on the intersection point of three fork arm raceway grooves and taper enlarging raceway axis always; When rotating with certain angle between driving shaft and driven shaft axis, steel ball can roll along three fork arm raceway grooves and taper enlarging raceway groove, the maximum angle of driving shaft axis and driven shaft axis can reach 40 °, and the connection of three fork arms, steel ball, tapered opening and correlation had not only guaranteed isogonism speed transmission but also realized the transmission of large torque.In addition, driving shaft and driven shaft do not have dividing of concrete driven and active, and when Hooks coupling universal coupling self-movement, according to the direction of transmission of torque, driving shaft and driven shaft can drivings alternate with each other.
In specific embodiment of the utility model, described acute angle a equates with described acute angle b.
The utility model, compared with existing angular speed universal coupling, has structurally been cancelled the high ball cage of machining accuracy and heat treatment required precision, and have simple in structure, processing, easy for installation, posting ability is strong, the life-span is high, makes the advantages such as price is low.Steel ball adopts Bearing Steel, through fine finishing, completes, and has the features such as long-life, low noise, low-frictional force, high reliability, has realized the transmission of larger torque, also can bear larger load.
The utility model has also related to the method for work of the two-sided steel ball type angular speed universal coupling of a kind of three fork arm, concrete steps are as follows: driving shaft drives three fork arms, three fork arm power transmissions are to steel ball, and power transmission is to taper enlarging again for steel ball, thereby drive, driven shaft isogonism is fast to rotate; When having angle to rotate between driving shaft and driven axle, steel ball can roll along raceway groove, and the axis angle of driving shaft and driven shaft can reach 40 °.
Accompanying drawing explanation
Fig. 1 is the tomograph of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
Fig. 2 is the partial cross-sectional cut-away view of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
Fig. 3 is the driving shaft plan view of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
Fig. 4 is the driving shaft right elevation of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
Fig. 5 is the driven shaft plan view of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
Fig. 6 is the driven shaft right elevation of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm;
In figure: 1-driving shaft, 2-tri-fork arms, 3-tri-fork arm raceway grooves, 4-driven shaft, 5-taper enlarging, 6-taper enlarging raceway groove, 7-steel ball, 8-driving shaft axis, 9-driven shaft axis, 10-tri-fork arm raceway fluted shaft lines, 11-taper enlarging raceway fluted shaft line, the 12-steel ball centre of sphere.
Embodiment
Below in conjunction with accompanying drawing, model utility is further described.
As shown in Fig. 1,2,3,4,5,6, the two-sided steel ball type angular speed universal coupling of three fork arms, comprising: driving shaft 1, three fork arms 2, steel ball 7, taper enlarging 5, driven shaft 4; Three fork arms 2 comprise that three of being fixed on driving shaft become the fork arm of 120 ° of distributions, and three fork arms 2 extend with certain acute angle a along driving shaft axis 8; Every fork arm has along bar direction the raceway groove 3 that two arc radiuses equate and are arranged symmetrically with; Driven shaft 4 is fixedly connected with taper enlarging 5, and taper enlarging 5 is extended with certain acute angle b along driven shaft axis 9; In taper enlarging 5, be shaped with the three pairs of taper enlarging raceway grooves 6 of 120 ° of being separated by, every pair of taper enlarging raceway groove 6 is symmetrical; The arc radius of taper enlarging raceway groove 6 and the arc radius of three fork arm raceway grooves 3 are in the same size; During installation, six steel balls 7 are arranged on respectively in the raceway groove 3 on three fork arms 2, three fork arms 2 are installed in the raceway groove 6 of driven shaft taper enlarging 5 together with steel ball 7, the centre of sphere 12 of each steel ball 7 is on the intersection point of the three fork arm raceway fluted shaft lines 10 corresponding with it and taper enlarging raceway axis 11 always again.Three fork arms 2, steel ball 7 and taper enlarging 5 be connected and correlation had not only guaranteed the isogonism speed transmission of driving shaft 1 and driven shaft 4 but also had realized the transmission of large torque.Acute angle a equates with acute angle b.
As shown in Fig. 1,2,3,4,5,6, the method for work concrete steps of the two-sided steel ball type angular speed universal coupling of the utility model three fork arm are as follows:
Steel ball can roll simultaneously in driven shaft taper enlarging raceway groove and three fork arm raceway grooves.
Claims (9)
1. the two-sided steel ball type angular speed universal coupling of three fork arms, is characterized in that: comprising: driving shaft, three fork arms, steel ball, taper enlarging, driven shaft; Described three fork arms and described driving shaft are fixedly linked, and described taper enlarging is fixedly connected with described driven shaft, and described steel ball is arranged between three fork arm raceway grooves and taper enlarging raceway groove.
2. the two-sided steel ball type angular speed universal coupling of three fork arm as claimed in claim 1, it is characterized in that: described three fork arms comprise that three of being fixed on driving shaft become the fork arm of 120 ° of distributions, and every fork arm has along bar direction the raceway groove that two arc radiuses equate and are arranged symmetrically with.
3. the two-sided steel ball type angular speed universal coupling of three fork arm as claimed in claim 2, is characterized in that: described three fork arms extend with certain acute angle a along driving shaft axial direction.
4. the two-sided steel ball type angular speed universal coupling of three fork arm as claimed in claim 1, it is characterized in that: described driven shaft is fixedly connected with taper enlarging, in described taper enlarging, along enlarging direction, be shaped with the 120 ° three pairs taper enlarging raceway grooves of being separated by, every pair of taper enlarging raceway groove is symmetrical.
5. the two-sided steel ball type angular speed universal coupling of three fork arms as described in claim 3 or 4, is characterized in that: described taper enlarging is extended with certain acute angle b along driven shaft axial direction.
6. the two-sided steel ball type angular speed universal coupling of three fork arms as described in claim 2 or 4, is characterized in that: the arc radius of the raceway groove of described taper enlarging equates with the arc radius of the raceway groove of three fork arms.
7. the two-sided steel ball type angular speed universal coupling of three fork arms as described in claim 1 or 2 or 4, it is characterized in that: described when having angle to rotate between driving shaft and driven shaft, steel ball can roll along three fork arm raceway grooves and taper enlarging raceway groove, and the maximum angle of driving shaft axis and driven shaft axis can reach 40 °.
8. the two-sided steel ball type angular speed universal coupling of three fork arm as claimed in claim 1, is characterized in that: when Hooks coupling universal coupling self-movement, according to the direction of transmission of torque, driving shaft and driven shaft be driven mutually.
9. the two-sided steel ball type angular speed universal coupling of three fork arm as claimed in claim 5, is characterized in that: described acute angle a equates with described acute angle b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762415.3U CN203560322U (en) | 2013-11-28 | 2013-11-28 | Three-fork double-side steel ball type universal coupling with constant angular velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320762415.3U CN203560322U (en) | 2013-11-28 | 2013-11-28 | Three-fork double-side steel ball type universal coupling with constant angular velocity |
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| Publication Number | Publication Date |
|---|---|
| CN203560322U true CN203560322U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320762415.3U Expired - Fee Related CN203560322U (en) | 2013-11-28 | 2013-11-28 | Three-fork double-side steel ball type universal coupling with constant angular velocity |
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| CN (1) | CN203560322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591158A (en) * | 2013-11-28 | 2014-02-19 | 青岛科技大学 | Three-fork-lever double-faced steel ball type constant-angular-velocity universal coupling |
-
2013
- 2013-11-28 CN CN201320762415.3U patent/CN203560322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591158A (en) * | 2013-11-28 | 2014-02-19 | 青岛科技大学 | Three-fork-lever double-faced steel ball type constant-angular-velocity universal coupling |
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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: 20140423 Termination date: 20141128 |
|
| EXPY | Termination of patent right or utility model |