CN101135346A - Spherical tooth type universal coupling - Google Patents
Spherical tooth type universal coupling Download PDFInfo
- Publication number
- CN101135346A CN101135346A CNA2007100170553A CN200710017055A CN101135346A CN 101135346 A CN101135346 A CN 101135346A CN A2007100170553 A CNA2007100170553 A CN A2007100170553A CN 200710017055 A CN200710017055 A CN 200710017055A CN 101135346 A CN101135346 A CN 101135346A
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- ball
- joint
- spherical
- end cap
- joining shaft
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Abstract
The ball-tooth universal coupler comprises a left-right symmetric intermediate joint axle and two half-couplers mounted on the two ends of the intermediate joint axle through end caps. The said half coupler is a ball-shape ball joint connected respectively with the power input end and the power output end. At the front half sphere of the ball joint are provided with several bars of externally convex arc teeth, and in the sphere recess at the two ends of the intermediate joint there is provided with internal concave arc teeth. The internal cavity of the end cap is a spherical recess corresponding to the rear sphere of the ball joint, and the ball joint is mounted movably in the ball-shape cavity formed by the end cap and the intermediate joint. Advantages: reduced contact stress to stress surface, high transfer torque, stable operation, good sealing and lubricating effect, long service life, compact structure and convenient maintenance.
Description
Technical field
The present invention relates to a kind of elastic coupling flexible coupling, particularly a kind of Hooks coupling universal coupling.
Background technique
Hooks coupling universal coupling is used to connect axis not at collinear diaxon, is widely used in the transmission of power of metallurgy, engineering, mine and heavy machinery industry.Existing Hooks coupling universal coupling has various ways, as universal coupling with spider, slide block type Hooks coupling universal coupling, Rzeppa type Hooks coupling universal coupling and drum-shaped tooth type Hooks coupling universal coupling etc.Universal coupling with spider is simple in structure, but there is the little and inconstant shortcoming of angular velocity of transmitting torque, the slide block type Hooks coupling universal coupling can transmit than high pulling torque, but its volume is big, slide block is that face contacts with homalocephalus, easy to wear, and the two all exists sealing and lubricated bad shortcoming, influences working life.The Rzeppa type Hooks coupling universal coupling can overcome above-mentioned defective, and this coupling is made up of ball-joint and ball pivot, between ball-joint and ball pivot steel ball is housed, and can transmit than high pulling torque, realize the constant speed transmission, be fit to high speed rotating, but its manufacture difficulty is big, the machining accuracy height, the cost height has limited it and has applied.The drum-shaped tooth type Hooks coupling universal coupling is to be meshing with each other by inside and outside tooth, by flank of tooth contact transferring power, general internal tooth is the involute straight-tooth, and external tooth is that involute is cydariform vertically, satisfies two by the requirement of the drive shaft axis angle of cut with the crowned teeth pendulum angle, in working order, along the contact of the axial local line of tooth, contact stress is big, has limited the transmission of torsion between the inside and outside tooth, the rate of wear is fast, influences working life.The patent No. is that a kind of profile of tooth Hooks coupling universal coupling of ZL03235201.8 and a kind of curve Hooks coupling universal coupling that the patent No. is ZL03235200.X improve to some extent to said structure, but still does not address the above problem.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art, provide a kind of simple and compact for structure, convenient for installation and maintenance, stability is good, the spherical tooth type universal coupling of long service life.
For achieving the above object, the technical solution adopted in the present invention is: spherical tooth type universal coupling comprises a middle joining shaft and is installed in the half-coupling at middle joining shaft two ends by end cap, the spherical shape ball-joint of said half-coupling for being connected with clutch end with power intake respectively, on the preceding hemisphere face of this spherical shape ball-joint, evenly be processed with convex tooth outside many, two ends at middle joining shaft are processed with the hemisphere spherical groove respectively, be processed with the indent arc tooth that is meshed with outer convex tooth on the above-mentioned ball-joint in this spherical groove, the inner chamber of end cap is and the corresponding spherical groove of ball-joint rear portion sphere that ball-joint is movably arranged in the spherical inner chamber of end cap and the formation of middle joining shaft by end cap.
Spherical tooth type universal coupling is processed with circular groove on the sphere at ball-joint rear portion as mentioned above, and rubber seal is housed in the circular groove.
Spherical tooth type universal coupling as mentioned above, its end cap is connected with middle joining shaft by screw thread.
Spherical tooth type universal coupling is processed with lubricated oil storage chamber respectively at the top of ball-joint and the bottom of middle joining shaft two ends spherical groove as mentioned above.
Structure bilateral symmetry of the present invention.
The present invention utilizes the transmitting torque that is meshing with each other of the arc tooth on two spheres, has increased stressed area of contact, has reduced the contact stress of stress surface, and transmitting torque is big, and stability is good, goes slick; End cap and middle joining shaft form the spherical inner chamber of good seal, and are provided with oil storage chamber, high lubricating effect, long service life; End cap and middle joining shaft are by being threaded, and easy accessibility is safeguarded debugging easily; The present invention is simple and compact for structure, and low cost of manufacture is applied widely.
Description of drawings
Fig. 1 is a main sectional view of the present invention, shows its overall structure;
Cut open figure in Fig. 2 half-coupling ball-joint;
Cut open figure in the joining shaft in the middle of Fig. 3;
Cut open figure in Fig. 4 end cap.
Embodiment
Accompanying drawing illustrated embodiment, spherical tooth type universal coupling of the present invention are two ends, left and right sides symmetrical structures.Joining shaft 1 in the middle of it comprises one, the two ends of middle joining shaft 1 are processed with hemispheric spherical groove 9 respectively, end cap 2,3 by joining shaft 1 two ends in the middle of being connected in this spherical groove 9 is separately installed with half-coupling, said half-coupling is the ball-joint 4,5 of the spherical shape that is connected with clutch end 7 with power intake 6 respectively, on the preceding hemisphere face of ball-joint 4,5, evenly be processed with convex tooth 8 outside many, in spherical groove 9, be processed with the indent arc tooth 10 that is meshed with outer convex tooth 8 on the ball-joint 4,5, and the person is in conjunction with transmitting torque.The inner chamber of end cap 2,3 is and the corresponding spherical groove 11 of ball-joint 4,5 rear portion spheres that ball-joint 4,5 is movably arranged in the spherical inner chamber of end cap 2,3 and 1 formation of middle joining shaft by end cap 2,3.End cap 2,3 is connected with middle joining shaft 1 by screw thread.Loosening in the course of the work for preventing end cap 2,3, in the joint of end cap and middle joining shaft 1 stopping device is installed, said stopping device is for being separately fixed at the retaining sheet 13 on end cap 2,3 and the middle joining shaft 1 by screw.Be processed with the oil storage chamber 14,15 that stores lubricant oil respectively at the top of ball-joint 4,5 and the bottom of middle joining shaft 1 two ends spherical groove 9.Be processed with the oil hole 16 that communicates with the lubricated oil storage chamber 15 in the bottom of spherical groove 9 on the middle joining shaft 1.On ball-joint 4,5 rear portion spheres, be processed with circular groove, rubber seal 12 is housed in the circular groove.
Claims (6)
1. spherical tooth type universal coupling, joining shaft (1) and be installed in the half-coupling at joining shaft (1) two ends, centre by end cap (2) (3) in the middle of comprising, it is characterized in that: the spherical shape ball-joint (4) (5) of said half-coupling for being connected with clutch end (7) with power intake (6) respectively, on the preceding hemisphere face of ball-joint (4) (5), be evenly distributed with convex tooth (8) outside many, the two ends of middle joining shaft (1) are processed with hemisphere spherical groove (9) respectively, be processed with the indent arc tooth (10) that is meshed with outer convex tooth (8) on the ball-joint (4) (5) in the spherical groove (9), the inner chamber of end cap (2) (3) is and ball-joint (4) (5) the corresponding spherical groove of rear portion sphere (11) that ball-joint (4) (5) is movably arranged in the spherical inner chamber of end cap (2) (3) and middle joining shaft (1) formation by end cap (2) (3).
2. spherical tooth type universal coupling according to claim 1 is characterized in that being processed with circular groove on the sphere of ball-joint (4) (5) rear portion, and rubber seal (12) is housed in the circular groove.
3. spherical tooth type universal coupling according to claim 1 is characterized in that end cap (2) (3) is connected with middle joining shaft (1) by screw thread.
4. spherical tooth type universal coupling according to claim 3, it is characterized in that in the joint of end cap (2) (3) and middle joining shaft (1) stopping device that prevents that end cap is loosening being installed, said stopping device is for being separately fixed at the retaining sheet (13) on end cap (2) (3) and the middle joining shaft (1) by screw.
5. spherical tooth type universal coupling according to claim 1 is characterized in that being processed with lubricated oil storage chamber (14) (15) respectively at the top of ball-joint (4) (5) and the bottom of middle joining shaft (1) two ends spherical grooves (9).
6. spherical tooth type universal coupling according to claim 5 is characterized in that being processed with the oil hole (16) that communicates with the lubricated oil storage chamber (15) in the bottom of spherical groove (9) on middle joining shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100170553A CN101135346A (en) | 2007-08-27 | 2007-08-27 | Spherical tooth type universal coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100170553A CN101135346A (en) | 2007-08-27 | 2007-08-27 | Spherical tooth type universal coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101135346A true CN101135346A (en) | 2008-03-05 |
Family
ID=39159600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100170553A Pending CN101135346A (en) | 2007-08-27 | 2007-08-27 | Spherical tooth type universal coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101135346A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094880A (en) * | 2011-03-14 | 2011-06-15 | 北京联合大学 | Coupling |
| CN112268073A (en) * | 2020-10-29 | 2021-01-26 | 孙希强 | Universal joint for conveniently lengthening transmission shaft |
-
2007
- 2007-08-27 CN CNA2007100170553A patent/CN101135346A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094880A (en) * | 2011-03-14 | 2011-06-15 | 北京联合大学 | Coupling |
| CN112268073A (en) * | 2020-10-29 | 2021-01-26 | 孙希强 | Universal joint for conveniently lengthening transmission shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |