CN103470649B - Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling - Google Patents
Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling Download PDFInfo
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- CN103470649B CN103470649B CN201310443556.3A CN201310443556A CN103470649B CN 103470649 B CN103470649 B CN 103470649B CN 201310443556 A CN201310443556 A CN 201310443556A CN 103470649 B CN103470649 B CN 103470649B
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- power transmission
- fork arm
- land
- driven axle
- slide bar
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- 230000008878 coupling Effects 0.000 title claims abstract description 52
- 238000010168 coupling process Methods 0.000 title claims abstract description 52
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000013016 damping Methods 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims 1
- 239000011358 absorbing material Substances 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 230000009347 mechanical transmission Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 2
- 239000002184 metal Substances 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The invention discloses a shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling, which comprises a driving shaft, a driving shaft connecting disc, power transmission sliding rod components, radial fork rods, double-ball pins, a fork rod joint, a driven shaft connecting shaft and a driven shaft. The torque of the driving shaft is transmitted to three groups of power transmission sliding rod components through the three radial fork rods, the driven shaft connecting disc is driven to drive the driven shaft to rotate, and the double-ball pins bear axial tension produced during mechanical transmission and plays a role of fixed connection. Since the power transmission method of the coupling is realized through surface contact and high-quality shock absorbing elements are used, the coupling has the advantages of high bearing capacity, good shock absorbing effect and the like.
Description
Technical field
The present invention relates to a kind of angular speed universal coupling, specifically a kind of three fork arms for the damping type in mechanical transmission axially connect firmly formula angular speed universal coupling.
Background technique
In mechanical transmission, Hooks coupling universal coupling is used to connect the driving shaft and driven shaft with certain angle, and makes the mechanical parts of its common rotation and then transmitting torque.The Main Function of Hooks coupling universal coupling is the connection for power engine and working machine, is the most frequently used connected element of engineering goods axle system transmission.Hooks coupling universal coupling production development is both at home and abroad very fast at present, and varieties and characteristics is different, and conventional mainly contains universal coupling with spider, the Tripod Universal Joint and Rzeppa type Hooks coupling universal coupling.Wherein, universal coupling with spider is non-constant velocity tramsmission, and latter two is constant velocity tramsmission.Due to angular speed universal coupling, to have transmission efficiency high, advantages such as performance is good and being more widely used.
But but there is following a few deficiency in existing angular speed universal coupling: first, in mechanical transmission course, inevitably can produce vibration, but the Hooks coupling universal coupling of damping type extremely lacks in the market; In addition, because the force transmission contact mode of existing angular speed universal coupling mostly is point cantact or linear contact lay, result in its bearing capacity little, application area is narrow; Further, for the Tripod Universal Joint, lack the product of fixed model always.Therefore, in order to overcome above problem, the invention provides a kind of damping capacity strong, transmitting torque is large, and damping type three fork arm of axial restraint formula axially connects firmly formula angular speed universal coupling.
Summary of the invention
In order to overcome the shortcoming of Hooks coupling universal coupling in prior art, the invention provides a kind of damping type three fork arm and axially connecting firmly formula angular speed universal coupling.
Technological scheme of the present invention is: damping type three fork arm axially connects firmly formula angular speed universal coupling, mainly comprises driving shaft, driving shaft land, power transmission slide bar assembly, radial fork arm, two ball stud, fork arm joint, driven axle land and driven axle.Driving shaft is connected by spline interference with driving shaft land, the two ends of three radial fork arms are respectively in corresponding three circular holes be fastenedly connected on driving shaft land and fork arm joint, three cover power transmission slide bar assembly one end are arranged on three radial fork arms by the joint shaft bearing of its inside, the other end connects by square metal cover is corresponding with the square opening of three on driven axle land, original point cantact is become face with linear contact lay mode of transfer force and contacts by this structure, improve the bearing capacity of Hooks coupling universal coupling, driven axle land is connected by spline interference with driven axle; Tapped hole in two ball stud one end and fork arm joint is threaded connection, and fixes by hex-head nut; Tapped hole in the other end and driven axle land is threaded connection fixing; Fork arm joint and driven axle land connect firmly by this structure, the axial motion between driving shaft and driven axle can be limited, the centre of two ball stud is two bulbs, form two spherical pairs, waved by the part of sphere, thus allow fork arm joint and driven axle land to have certain angle, and then alleviate self disturbance of driven axle.
Axially connect firmly formula angular speed universal coupling driving shaft top has spline to damping type three fork arm of the present invention, and driving shaft is connected with the interference of driving shaft land inner spline groove by spline.
Axially connect firmly formula angular speed universal coupling driving shaft land comprises spigot and socket to damping type three fork arm of the present invention.Spigot is the inner spline groove of driving shaft land, for connecting driving shaft; Socket becomes 120 ° of axial distribution, three manholes, fixing for radial fork arm.
The power transmission slide bar assembly that damping type three fork arm of the present invention axially connects firmly formula angular speed universal coupling comprises power transmission slide bar, joint shaft bearing, elastic sleeve and metallic sheath; Power transmission slide bar is the main body of power transmission slide bar assembly, and force transferring slide club head cylinder inner ring is fastenedly connected with joint shaft bearing, and afterbody square pole is the flexible cover of adapter sleeve and metallic sheath successively; Joint shaft bearing is arranged on radial fork arm, does small slip; Metallic sheath is arranged in driven axle land square hole, and can slide in hole; Elastic sleeve adopts the rubber material manufacture of absorbing, arranges because power transmission slide bar assembly becomes 120 ° to distribute by active axis, and when there are mechanical vibration, the vibration of just Absorbable rod all directions generation, makes Hooks coupling universal coupling have obvious effectiveness in vibration suppression.
It is cylindrical metal bar that damping type three fork arm of the present invention axially connects firmly the radial fork arm of formula angular speed universal coupling, for connecting driving shaft land and fork arm joint.
Damping type three fork arm of the present invention axially connects firmly the two ball stud of formula angular speed universal coupling and comprises two bulbs and two ball pins; Two bulb shape is two relative grooves, and two ball stud heads are enclosed within two grooves of two bulb respectively, and form two spherical pairs, bulb pin rod portion is outside thread, and two ball studs are respectively used to be fixedly connected on fork arm joint and driven axle land.
Axially connect firmly formula angular speed universal coupling fork arm joint becomes 120 ° of axial distribution, three blind round hole to damping type three fork arm of the present invention, and for installing radial fork arm, there is tapped through hole inside, for connecting two ball stud, and is fixed by hexagon nut.
Damping type three fork arm of the present invention axially connects firmly the axial one-tenth 120 ° of formula angular speed universal coupling driven axle land and is distributed with three square openings, for installing power transmission slide bar assembly, outer surface axis place has tapped blind hole, be threaded with two ball stud, inside has inner spline groove, for connecting driven axle.
Axially connect firmly formula angular speed universal coupling driven axle top has spline to damping type three fork arm of the present invention, is connected with the interference of driven axle land inner spline groove.
In the course of the work, driving shaft drives three radial fork arms to rotate by driving shaft land and fork arm joint, and enter and moment of torsion is passed to three groups of power transmission slide bar assemblies, power transmission slide bar drives driven axle land by metallic sheath, finally orders about driven axle constant velocity rotation.Meanwhile, the axial tension produced when two ball stud bears driving shaft and driven axle rotation, plays the effect of connecting firmly.In working procedure, the forms of motion of vital part is: power transmission slide bar assembly comes and goes and slides in the square hole of driven axle land; The land portions of joint shaft bearing swings; Joint shaft bearing inner ring does small slip on three radial fork arms; Two land portions of two ball stud swing.Axis angle between driving shaft of the present invention and driven axle can reach 30 °.
The beneficial effect of employing acquired by such scheme is:
1, the force transmission contact mode between driving shaft with driven axle adopts face to contact, and improves the bearing capacity of Hooks coupling universal coupling;
2, often overlap power transmission slide bar assembly and be furnished with an elastic sleeve, and place relative to driven axle distribution, improve the damping capacity of Hooks coupling universal coupling;
3, adopt two ball stud to connect firmly between fork arm joint and driven axle land, can limit the axial motion in the middle of driving shaft and driven axle, two bulb also can alleviate self disturbance of driven axle simultaneously;
4, compared with existing angular speed universal coupling, it is simple that the present invention has structure, easy for installation, the remarkable advantages such as processing cost is low, applied range.
Accompanying drawing explanation
Fig. 1: damping type three fork arm of the present invention axially connects firmly formula angular speed universal coupling three-dimensional structure diagram.
Fig. 2: damping type three fork arm of the present invention axially connects firmly formula angular speed universal coupling explosive view.
Fig. 3: damping type three fork arm of the present invention axially connects firmly formula angular speed universal coupling power transmission slide bar assembly explosive view.
In figure: 1-driving shaft, 2-driving shaft land, 3-power transmission slide bar, 4-joint shaft bearing, 5-elastic sleeve, 6-metallic sheath, 7-hex-head nut, the radial fork arm of 8-, the two ball stud of 9-, 10-fork arm joint, 11-driven axle land, 12-driven axle.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the invention is further described.
As shown in Figure 1, 2, 3, damping type three fork arm axially connects firmly formula angular speed universal coupling, comprises driving shaft 1, driving shaft land 2, power transmission slide bar assembly 3,4,5,6, hex-head nut 7, radial fork arm 8, two ball stud 9, fork arm joint 10, driven axle land 11 and driven axle 12; Driving shaft 1 is connected by spline interference with active coupling shaft 2; The two ends of three radial fork arms 8 are respectively in corresponding three circular holes be fastenedly connected on driving shaft land 2 and fork arm joint 10; Power transmission slide bar 3 is main bodys of power transmission slide bar assembly, and power transmission slide bar 3 head cylinder inner ring is fastenedly connected with joint shaft bearing 4, and afterbody square pole is fastened with elastic sleeve 5 and metallic sheath 6 successively; Three cover power transmission slide bar assembly one end are arranged on three radial fork arms 8 by the joint shaft bearing 4 of its inside, and can slide on radial fork arm 8, the other end connects by square metal cover 6 is corresponding with the square opening of three on driven axle land 11, and can slide in hole; Driven axle land 11 is connected by spline interference with driven axle 12; Tapped hole in two ball stud 9 one end and fork arm joint 10 is threaded connection, and fix by hex-head nut 7, tapped hole in the other end and driven axle land 11 is threaded connection fixing, fork arm joint 10 and driven axle land 11 connect firmly by this structure, thus the axial motion between restriction driving shaft 1 and driven axle 12.
In the course of the work, driving shaft 1 drives three radial fork arms 8 to rotate by driving shaft land 2 and fork arm joint 10, and then moment of torsion is passed to three groups of power transmission slide bar assemblies, power transmission slide bar 3 drives driven axle land 11 by metallic sheath 6, finally orders about driven axle 12 constant velocity rotation.Meanwhile, two ball stud 9 bears the axial tension produced when driving shaft 1 and driven axle 12 rotate, and plays the effect of connecting firmly.In working procedure, the forms of motion of vital part is: power transmission slide bar assembly comes and goes and slides in the square hole of driven axle land 11; The land portions of joint shaft bearing 4 swings; Joint shaft bearing 4 inner ring does small slip on three radial fork arms 8; Two land portions of two ball stud 9 swing.Axis angle between driving shaft 1 of the present invention and driven axle 12 can reach 30 °.
Claims (3)
1. damping type three fork arm axially connects firmly formula angular speed universal coupling, it is characterized in that: comprise driving shaft (1), driving shaft land (2), power transmission slide bar assembly, radial fork arm (8), two ball stud (9), fork arm joint (10), driven axle land (11) and driven axle (12); Driving shaft (1) top has spline, and this spline is connected with the spline interference of driving shaft land (2) inside; Driving shaft land (2) socket becomes 120 ° of axial distribution, three manholes; Fork arm joint (10) becomes 120 ° of axial distribution, three blind round hole; The two ends of three radial fork arms (8) are respectively charged in driving shaft land (2) and three circular holes corresponding to fork arm joint (10), and adopt interference to connect; Three cover power transmission slide bar assemblies are arranged on three radial fork arms (8) by the joint shaft bearing of its inside; Driven axle land (11) axially becomes 120 ° and is distributed with three square openings, and the metallic sheath skin of three cover power transmission slide bar assemblies is corresponding with driven axle land (11) three square openings to be connected; Driven axle land (11) is connected by spline interference with driven axle (12); Fork arm joint (10) axial inner has tapped through hole, driven axle land (11) axial inner has tapped blind hole, two ball stud (9) both sides are threaded connection with fork arm joint (10) and driven axle land (11) respectively, and fork arm joint (10) is fixed by hex-head nut (7) after being threaded with two ball stud (9).
2. damping type three fork arm according to claim 1 axially connects firmly formula angular speed universal coupling, it is characterized in that: power transmission slide bar assembly comprises power transmission slide bar (3), joint shaft bearing (4), elastic sleeve (5) and metallic sheath (6); Power transmission slide bar (3) is the main body of power transmission slide bar assembly, and head is circular cylinder, and afterbody is square stock; Joint shaft bearing (4) adopts standard piece, and outer ring is fastened in power transmission slide bar (3) head cylinder inner ring, and inner ring is arranged on radial fork arm (8); Elastic sleeve (5) and metallic sheath (6) are foursquare tubular cover inside and outside being all, and adapter sleeve is in power transmission slide bar (3) afterbody square stock according to this, metallic sheath (6) outer correspondence is arranged in driven axle land (11) square opening.
3. damping type three fork arm according to claim 2 axially connects firmly formula angular speed universal coupling, it is characterized in that: described elastic sleeve (5) uses rubber-like vibration-absorbing material, and what metallic sheath (6) adopted is antiwear cast iron alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443556.3A CN103470649B (en) | 2013-09-26 | 2013-09-26 | Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443556.3A CN103470649B (en) | 2013-09-26 | 2013-09-26 | Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling |
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| Publication Number | Publication Date |
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| CN103470649A CN103470649A (en) | 2013-12-25 |
| CN103470649B true CN103470649B (en) | 2015-06-24 |
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| CN201310443556.3A Expired - Fee Related CN103470649B (en) | 2013-09-26 | 2013-09-26 | Shock-absorbing three-fork-rod axially-and-fixedly-connected constant-angular-velocity universal coupling |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351972A (en) * | 2016-11-17 | 2017-01-25 | 青岛科技大学 | Heat insulation and vibration reduction slider type universal coupling |
| CN106321673A (en) * | 2016-11-17 | 2017-01-11 | 青岛科技大学 | Thermal-insulation and vibration attenuationslide bar type universal coupling |
| CN106838030B (en) * | 2017-04-13 | 2023-09-05 | 青岛科技大学 | Axial displacement compensation equal-angular-speed universal coupling |
| CN107091279B (en) * | 2017-05-09 | 2023-08-29 | 青岛科技大学 | Internal three-fork type constant-angular-speed universal coupling |
| CN108591295A (en) * | 2018-07-02 | 2018-09-28 | 青岛科技大学 | A kind of sliding constant angular velocity Hooks coupling universal coupling of compact |
| CN108916258A (en) * | 2018-09-17 | 2018-11-30 | 青岛科技大学 | Three fork arm spring column pin formula Hooks coupling universal couplings |
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- 2013-09-26 CN CN201310443556.3A patent/CN103470649B/en not_active Expired - Fee Related
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Effective date of registration: 20190712 Address after: 266000 Chaohaixi Community 228, Hetao Street, Hongdao Economic Zone, Qingdao City, Shandong Province Patentee after: Qingdao Runxuda Trading Co., Ltd. Address before: 266000 Shandong province Qingdao City Songling Road No. 99 Patentee before: Qingdao University of Science & Technology |
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