CN205207473U - Telescopic universal joint - Google Patents
Telescopic universal joint Download PDFInfo
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- CN205207473U CN205207473U CN201521096140.XU CN201521096140U CN205207473U CN 205207473 U CN205207473 U CN 205207473U CN 201521096140 U CN201521096140 U CN 201521096140U CN 205207473 U CN205207473 U CN 205207473U
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- bearing
- transmission shaft
- universal joint
- force transmission
- power transmission
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Abstract
The utility model relates to a transmission field provides a telescopic universal joint, including the initiative universal joint, driven universal joint, pass the power cover and pass the mechanical axis, it is connected with the initiative universal joint to pass power cover one end, and the other end is an open end, the one end that passes the mechanical axis is connected with driven universal joint, the other end stretches into the inside that passes the power cover, it is provided with moment of torsion transfer device to pass the mechanical axis and pass between the power cover, moment of torsion transfer device includes pivot and bearing, pivot one end is with biography mechanical axis fixed connection and follow the radial setting that passes the mechanical axis, the other end and bearing interference fit, the inner wall that passes the power cover is provided with axial rectangular channel, the bearing is installed in the rectangular channel. When the axial displacement compensation that realizes the shaft coupling, the bearing inner race of bearing rolls at the rectangular channel inner wall and gos forward, becomes rolling friction with sliding friction, has reduced frictional force, is going on frequently, fast, during by a wide margin displacement compensation, can avoid passing the power cover and because of the big rapid wear of frictional force, improve life.
Description
Technical field
The utility model relates to transmission device field, especially a kind of telescopic Hooks coupling universal coupling.
Background technique
Hooks coupling universal coupling extensively uses in various mechanical transmission as mechanical transmissioning piece, it is of a great variety, structural type also difference is comparatively large, and the Hooks coupling universal coupling that can realize significantly axial displacement compensation (stretching) mainly relies on the tooth-like connection such as spline tooth, crowned teeth carry out transmitting torque and realize bit shift compensation.During this kind of structure axial displacement, it is sliding friction between interior external tooth cover, there is larger axial shifting force, the unfavorable factor such as frictional heating, the flank of tooth grind wound, the flank of tooth is easy to wear, general steel rolling equipment operating mode can only be applicable to, the machine driven system of the equipment such as some special rolling machinery, test stand, boats and ships, papermaking cannot be applicable to, height rotating speed when cannot meet load, frequently, fast, the requirement of significantly bit shift compensation.
Current domestic patent " a kind of spline connection of scalable universal coupling with spider ", application number is 200620028360.3, relate to a kind of spline connection of scalable universal coupling with spider, be applied to the transmission of power of rolling mill, in rolling machinery, the splined shaft connecting structure of coupling.The technological scheme that this patent proposes is: spline housing and splined shaft spline joint, the spline teeth of spline housing, splined shaft is triangle, and pressure angle α is 30 ° ± 1 °.This model utility advantage is: novel structure, and it is simple that serration spline has structure, and easy to process, can carry out highi degree of accuracy processing, machining accuracy easily controls, self-alignment precision advantages of higher.Be particularly useful for the rolling machinery under heavy load, the larger operating mode of impact.
But mainly there is following unfavorable factor in above-mentioned patented technology:
1. be sliding friction between spline housing and splined shaft, frictional force can produce larger axial shifting force to two ends universal joint, increases additional load when universal joint runs;
2. lubricate insufficient, sliding too fast etc. all can cause interior external tooth cover seriously to generate heat, the accident such as occur fault, pull;
3. along with after teeth portion progressively weares and teares, interior external tooth centering effect is poor, and coupling rocks, noise etc. progressively increases;
4. can only stretch when zero load, cannot meet during load high rotating speed, frequently, fast, significantly bit shift compensation requirement.Therefore, spline housing, splined shaft restrict by factors such as material, heat treatment, lubricating condition, displacement amplitude, velocity of displacements, height rotating speed when cannot be applicable to load, frequently, fast, the machine driven system of significantly bit shift compensation.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of telescopic Hooks coupling universal coupling, can realize high rotating speed, frequently, fast, the requirement of significantly bit shift compensation.
The utility model solves the technological scheme that its technical problem adopts: telescopic Hooks coupling universal coupling, comprise initiatively universal joint, driven universal joint, power transmission cover and force transmission shaft, described power transmission is overlapped one end and is connected with active universal joint, the other end is opening end, one end of described force transmission shaft is connected with driven universal joint, the other end stretches into the inside of power transmission cover, described force transmission shaft and power transmission are provided with torque transmitter between overlapping, described torque transmitter comprises pivot and bearing, described pivot one end is fixedly connected with force transmission shaft and radial direction along force transmission shaft is arranged, the other end and bearing interference fit, the inwall of described power transmission cover is provided with axial rectangle groove, described bearing is installed in rectangle groove.
Further, described force transmission shaft is provided with circular trough, described pivot and circular trough interference fit.
Further, described pivot and bearing are three groups, and are uniformly distributed centered by force transmission shaft.
Further, the opening end of described power transmission cover is provided with dust-proof cover.
Further, wear-resisting flip sleeve is provided with between described dust-proof cover and force transmission shaft.
Further, the arranged outside of described wear-resisting flip sleeve has dust-proof seal ring.
Further, be provided with bleed valve, described bleed valve is provided with dust-proof pore, and the inner chamber that described dust-proof pore and power transmission are overlapped communicates.
Further, described power transmission cover and force transmission shaft are provided with annular slot, in described annular slot, are provided with equilibrium block.
Further, described bearing is rolling bearing.
The beneficial effects of the utility model are: utilize pivot and bearing outer ring transmitting torque, when the axial displacement realizing coupling compensates, force transmission shaft, pivot and bearing are synchronized with the movement, the external peripheral surface of bearing rolls at rectangle groove inwall and advances, thus sliding friction is become rolling friction, reduce frictional force, reduce the axial additional load of universal joint.Carrying out frequently, fast, significantly bit shift compensation time, can avoid power transmission cover because frictional force is large Fast Wearing, improve working life.
Accompanying drawing explanation
Fig. 1 is that the master of the telescopic Hooks coupling universal coupling of the utility model looks partial sectional view;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is the close-up schematic view of part B in Fig. 1;
Reference character: 10-initiatively universal joint; 20-driven universal joint; 30-power transmission cover; 34-equilibrium block; 40-force transmission shaft; 51-pivot; 52-bearing; 60-dust-proof cover; 70-wear-resisting flip sleeve; 80-dust-proof seal ring; 90-bleed valve 90.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As Fig. 1, shown in Fig. 2 and Fig. 3, telescopic Hooks coupling universal coupling of the present utility model, comprise initiatively universal joint 10, driven universal joint 20, power transmission cover 30 and force transmission shaft 40, described power transmission is overlapped 30 one end and is connected with active universal joint 10, the other end is opening end, one end of described force transmission shaft 40 is connected with driven universal joint 20, the other end stretches into the inside of power transmission cover 30, described force transmission shaft 40 and power transmission are provided with torque transmitter between overlapping 30, described torque transmitter comprises pivot 51 and bearing 52, described pivot 51 one end is fixedly connected with force transmission shaft 40 and radial direction along force transmission shaft 40 is arranged, the other end and bearing 52 interference fit, the inwall of described power transmission cover 30 is provided with axial rectangle groove, described bearing 52 is installed in rectangle groove.
Initiatively universal joint 10, driven universal joint 20, power transmission cover 30 and force transmission shaft 40 all adopt prior art.Pivot 51 and bearing 52 are for transmitting torque, and pivot 51 is arranged along the radial direction of force transmission shaft 40, to ensure maximum transmission efficiency.Spielpassung between bearing 52 and rectangle groove, to guarantee that bearing 52 unhinderedly can move along rectangle groove.The utility model, utilize pivot 51 and bearing 52 outer ring transmitting torque, when the axial displacement realizing coupling compensates, force transmission shaft 40, pivot 51 and bearing 52 are synchronized with the movement, the external peripheral surface of bearing 52 rolls at rectangle groove inwall and advances, thus sliding friction is become rolling friction, reduce frictional force, reduce the axial additional load of universal joint.Carrying out frequently, fast, significantly bit shift compensation time, can avoid power transmission overlap 30 because frictional force is large Fast Wearing, improve working life.
Force transmission shaft 40 can directly and pivot 51 be welded to connect and be integrated, but the positional accuracy be welded to connect is low, and force transmission shaft 40 is easily out of shape, and therefore, as preferred technological scheme, described force transmission shaft 40 is provided with circular trough, described pivot 51 and circular trough interference fit.Interference fit can ensure the stable installation of pivot 51, and meanwhile, adopt in this way, pivot 51 can bear bigger bending moment, and improves specified working load.
Pivot 51 and bearing 52 can be two groups or four groups, and the size according to torque is determined, preferably, described pivot 51 is three groups with bearing 52, and is uniformly distributed centered by force transmission shaft 40.
In the cavity entered between power transmission cover 30 and force transmission shaft 40 to prevent the impurity such as dust, ensure that bearing 52 has good lubricating condition, the opening end of described power transmission cover 30 is provided with dust-proof cover 60.
In order to improve the centering validity of power transmission cover 30 and force transmission shaft 40, between described dust-proof cover 60 and force transmission shaft 40, be provided with wear-resisting flip sleeve 70.During assembling, the centering that force transmission shaft 05 and power transmission overlap 06 is realized by the gap controlled between bearing 52 and rectangle groove bottom land, the inwall of dust-proof cover 60 is step-like, the side of wear-resisting flip sleeve 70 is adjacent to the ladder side of dust-proof cover 60, for auxiliary positioning, both common constraints, substantially increase the centering effect of this coupling.
In order to improve sealing effect, the arranged outside of described wear-resisting flip sleeve 70 has dust-proof seal ring 80.
Be provided with bleed valve 90, described bleed valve 90 is provided with dust-proof pore, and the inner chamber that described dust-proof pore and power transmission overlap 30 communicates.Dust-proof pore is two-direction hole, only has gas to pass through, the impurity such as dust not by, avoid occurring the phenomenons such as airtight, jam.Bleed valve 90 can be arranged on power transmission cover 30, also can be on dust-proof cover, is connected as long as communicate with the inner chamber that power transmission overlaps 30.Coupling is when carrying out axial displacement and compensating, cavity volume between power transmission cover 30 and force transmission shaft 40 can change fast, air pressure can change, in order to the moving resistance preventing pressure fluctuations from causing force transmission shaft 40, utilize bleed valve 90 to be provided with dust-proof pore to pass into or deaeration, make power transmission overlap 30 inner chambers and extraneous air pressure balance.
Described power transmission cover 30 and force transmission shaft 40 are provided with annular slot, in described annular slot, are provided with equilibrium block 34.Coupling has been assembled laggard action balance and has been detected, and increases and decreases equilibrium block 34 according to testing result in annular slot, controls the installation of two ends equilibrium block 34 respectively, more effectively the dynamic balancing of coupling can be adjusted to better state.
Bearing 52 can be existing any one, in order to reduce frictional force further, preferably, described bearing 52 is rolling bearing.
Claims (9)
1. telescopic Hooks coupling universal coupling, comprise initiatively universal joint (10), driven universal joint (20), power transmission cover (30) and force transmission shaft (40), described power transmission cover (30) one end is connected with active universal joint (10), the other end is opening end, one end of described force transmission shaft (40) is connected with driven universal joint (20), the other end stretches into the inside of power transmission cover (30), torque transmitter is provided with between described force transmission shaft (40) and power transmission cover (30), it is characterized in that: described torque transmitter comprises pivot (51) and bearing (52), described pivot (51) one end is fixedly connected with force transmission shaft (40) and radial direction along force transmission shaft (40) is arranged, the other end and bearing (52) interference fit, the inwall of described power transmission cover (30) is provided with axial rectangle groove, described bearing (52) is installed in rectangle groove.
2. telescopic Hooks coupling universal coupling as claimed in claim 1, is characterized in that: (40) are provided with circular trough to described force transmission shaft, described pivot (51) and circular trough interference fit.
3. telescopic Hooks coupling universal coupling as claimed in claim 1 or 2, is characterized in that: described pivot (51) and bearing (52) are three groups, and are uniformly distributed centered by force transmission shaft (40).
4. telescopic Hooks coupling universal coupling as claimed in claim 1, is characterized in that: the opening end of described power transmission cover (30) is provided with dust-proof cover (60).
5. telescopic Hooks coupling universal coupling as claimed in claim 4, is characterized in that: be provided with wear-resisting flip sleeve (70) between described dust-proof cover (60) and force transmission shaft (40).
6. telescopic Hooks coupling universal coupling as claimed in claim 5, is characterized in that: the arranged outside of described wear-resisting flip sleeve (70) has dust-proof seal ring (80).
7. the telescopic Hooks coupling universal coupling as described in claim 1,2,4,5 or 6, it is characterized in that: be provided with bleed valve (90), described bleed valve (90) is provided with dust-proof pore, and described dust-proof pore communicates with the inner chamber of power transmission cover (30).
8. the telescopic Hooks coupling universal coupling as described in claim 1,2,4,5 or 6, it is characterized in that: described power transmission cover (30) and force transmission shaft (40) are provided with annular slot, in described annular slot, are provided with equilibrium block (34).
9. the telescopic Hooks coupling universal coupling as described in claim 1,2,4,5 or 6, is characterized in that: described bearing (52) is rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521096140.XU CN205207473U (en) | 2015-12-24 | 2015-12-24 | Telescopic universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521096140.XU CN205207473U (en) | 2015-12-24 | 2015-12-24 | Telescopic universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207473U true CN205207473U (en) | 2016-05-04 |
Family
ID=55845193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521096140.XU Active CN205207473U (en) | 2015-12-24 | 2015-12-24 | Telescopic universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815016A (en) * | 2021-01-22 | 2021-05-18 | 中国船舶重工集团公司第七一一研究所 | Universal coupling for ship |
-
2015
- 2015-12-24 CN CN201521096140.XU patent/CN205207473U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815016A (en) * | 2021-01-22 | 2021-05-18 | 中国船舶重工集团公司第七一一研究所 | Universal coupling for ship |
| CN112815016B (en) * | 2021-01-22 | 2022-06-24 | 中国船舶重工集团公司第七一一研究所 | Universal coupling for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180326 Address after: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee after: Double (Deyang) heavy equipment Co., Ltd. Address before: 618013 Deyang Pearl River West Road, Sichuan, No. 460 Patentee before: Erzhong Group (Deyang) Heavy Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right |