CN101865215A - High-precision coaxial coupling mechanism - Google Patents
High-precision coaxial coupling mechanism Download PDFInfo
- Publication number
- CN101865215A CN101865215A CN 201010225878 CN201010225878A CN101865215A CN 101865215 A CN101865215 A CN 101865215A CN 201010225878 CN201010225878 CN 201010225878 CN 201010225878 A CN201010225878 A CN 201010225878A CN 101865215 A CN101865215 A CN 101865215A
- Authority
- CN
- China
- Prior art keywords
- secondary drive
- drive wheel
- joining plate
- wheel shaft
- main transmission
- 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.)
- Granted
Links
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The invention relates to a high-precision coaxial coupling mechanism, which comprises a secondary driving wheel (1), a main driving wheel shaft (2), a coupling plate (3) and a coupling screw (4), wherein the bottom surface of the secondary driving wheel (1) is provided with a stop spigot, a first group of screw holes is uniformly distributed on the spigot, a second group of screw holes is uniformly distributed on the main driving wheel shaft (2), the coupling plate (3) is provided with a countersunk screw hole corresponding to the screw hole on the secondary driving wheel (1) and the main driving wheel shaft (2), the secondary driving wheel (1) is in clearance fit with the main driving wheel shaft (2), the coupling plate (3) is arranged inside the spigot of the secondary driving wheel (1) to be just opposite to the screw hole on the matching end surface between the countersunk screw hole and the main driving wheel shaft (2), a group of coupling screws (4) is arranged inside the countersunk screw hole to be tightened, so the bottom surface of the coupling plate (3) is tightened with the end surface of the main driving wheel shaft (3). The thread is deformed and self-locked and is difficult to be threaded off.
Description
Technical field
The present invention relates at mechanical field, especially in the accurate manufacturing field, connecting modes such as a kind of with traditional key, pin are compared, and can adapt to the clockwise and anticlockwise alternate torque, have high coaxial rotating precision, high reliability, no backlash journey, high efficiency transmitting torque, save the coaxial coupling mechanism in space.
Background technique
The wheel with spool between carry out coaxial moment of torsion transmission, the most traditional, modal method is to be undertaken by modes such as key, pin, screw thread, interference fit.But these connecting modes often exist deficiency, connect as key or pin, by the shear transfer moment of torsion, when the alternate torque of long-time bearing clockwise and anticlockwise, can produce shear gap gradually, and along with the increase in gap, shearing impact is increasing, up to damage.Moment of torsion and needs that scyewed joint only is fit to the carrying unidirectional delivery are equipped with jack panel, and it is bigger to take up room.Interference fit then is difficult to dismounting, is not suitable for often dismantling the mechanism of adjustment.Therefore, along with the development of sophisticated manufacturing, it is higher require to connect precision, work more reliable, more save the new coupling mechanism in space.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructurely, can adapt to the clockwise and anticlockwise alternate torque, have high coaxial rotating precision, high reliability, no backlash journey, high efficiency transmitting torque, save the coaxial coupling mechanism in space.
Goal of the invention of the present invention is achieved in that a kind of high-precision coaxial coupling mechanism, comprises secondary drive wheel 1, main transmission wheel shaft 2, joining plate 3, joint bolt 4, mounting plate 5, bearing 6, bearing hold-down ring 7; Described coaxial coupling mechanism is packed bearing 6 in the mounting plate 5 into " hot charge practice " earlier, compresses bearing 6 with bearing hold-down ring 7, tightens fastening screw trip bolt; After putting into bearing 6 holes and align with the small end of main transmission wheel shaft 2, be placed on hand and pull to compress on the press machine and put in place; The endoporus of the secondary drive wheel 1 of described coaxial coupling mechanism is installed on the matching part of corresponding main transmission wheel shaft 2, main transmission wheel shaft 2, secondary drive wheel 1 adopt Spielpassung, by controlling the machining accuracy of secondary drive wheel 1, main transmission wheel shaft 2, it connects the purpose of precision can to reach control; Described joining plate 3 is placed in the seam of secondary drive wheel 1, aligns the screw of its counterbore and main transmission wheel shaft 2 counterfaces, puts into the counterbore of joining plate 3 and tightens with 1 group of joint bolt 4, makes the end face of joining plate 3 bottom surfaces and main transmission wheel shaft 2 fastening; The screwing force of joint bolt 4 is fitted on the end face of main transmission wheel shaft 2 joining plate 3 bottom surfaces tightly, makes two faying surfaces produce very big static friction power, and the joint bolt of tightening 4 then only bears pulling force; Rotate secondary drive wheel 1, align the in addition 1 group of counterbore on the joining plate 3 and the screw of secondary drive wheel 1, tighten with other 1 group of joint bolt 4, make joining plate 3 bottom surfaces and secondary drive wheel 1 seam bottom surface fastening, the screwing force of joint bolt 4 is fitted on the secondary drive wheel 1 seam bottom surface joining plate 3 bottom surfaces tightly, make two faying surfaces produce very big static friction power, and 4 of the joint bolts of tightening bear pulling force, because pulling force makes the pitch of joint bolt 4 produce microcosmic and elongates, screw thread distortion self-locking is difficult for threading off; The transmission of moment of torsion is to realize by friction fully.
With " hot charge practice " bearing is packed in the mounting plate, compress bearing, tighten fastening screw trip bolt with the bearing hold-down ring.After putting into bearing hole and align with the small end of main transmission wheel shaft, be placed on hand and pull to compress on the press machine and put in place.The hole of secondary drive wheel is contained on the corresponding main transmission wheel shaft.Main transmission wheel shaft, secondary drive wheel adopt Spielpassung, and its quality of fit depends on the operating accuracy requirement of entire mechanism.By controlling the machining accuracy of secondary drive wheel, main transmission wheel shaft, it connects the purpose of precision can to reach control.Joining plate is placed in the seam of secondary drive wheel.Put into the counterbore of joining plate and tighten with 1 group of joint bolt, make the end face of joining plate bottom surface and main transmission wheel shaft fastening.At this moment, the screwing force of joint bolt is fitted on the end face of main transmission wheel shaft the joining plate bottom surface tightly, makes two faying surfaces produce very big static friction power.The joint bolt of tightening then only bears pulling force.Put in addition 1 group of counterbore of joining plate and tighten with other 1 group of joint bolt, make joining plate bottom surface and secondary drive wheel seam bottom surface fastening.At this moment, the screwing force of joint bolt is fitted on the secondary drive wheel seam bottom surface joining plate bottom surface tightly, makes two faying surfaces produce very big static friction power.The joint bolt of tightening then only bears pulling force.With bolt assembly is installed on the body.
If main transmission this moment wheel shaft drives secondary drive wheel rotation, then the transmission of moment of torsion realizes by friction fully, and 2 groups of joint bolts on the joining plate only bear pulling force.And because pulling force makes the pitch of joint bolt produce the microcosmic elongation, screw thread distortion self-locking can in use not released joint bolt.
A kind of high-precision coaxial coupling mechanism of the present invention is compared traditional connection technique, has following advantage:
1, connect driving torque relatively with key connecting, pin, transmitting torque becomes friction by shearing force, therefore can not cause damage owing to producing shear gap, has increased reliable transmission, has improved the working life of mechanism.
2, with the scyewed joint driving torque relatively, the one, can transmit the alternate torque of clockwise and anticlockwise checker, the 2nd, can obtain the connection precision higher than screw-thread fit, the 3rd, without locking nut, thereby save the space than scyewed joint.
3, with by the interference fit driving torque compare, coaxial coupling mechanism application area of the present invention is more extensive, is specially adapted to the workplace that will often dismantle, often adjust.
Description of drawings
Fig. 1 is the main sectional view of a kind of high-precision coaxial coupling mechanism of the present invention;
Fig. 2 is the plan view of a kind of high-precision coaxial coupling mechanism of the present invention.
In the accompanying drawings, concrete numeral: 1-level drive wheel; 2-main transmission wheel shaft; The 3-joining plate; The 4-joint bolt; The 5-mounting plate; The 6-bearing; 7-bearing hold-down ring.
Embodiment
The invention will be further described in conjunction with the accompanying drawings:
Shown in accompanying drawing, a kind of high-precision coaxial coupling mechanism comprises secondary drive wheel 1, main transmission wheel shaft 2, joining plate 3, joint bolt 4, mounting plate 5, bearing 6, bearing hold-down ring 7 etc.During installation, bearing 6 is packed in the mounting plate 5 earlier, compress bearing 6, tighten fastening screw trip bolt with bearing hold-down ring 7 with " hot charge practice ".After putting into bearing 6 holes and align with the small end of main transmission wheel shaft 2, be placed on hand and pull to compress on the press machine and put in place.The hole of secondary drive wheel 1 is contained on the corresponding site of corresponding main transmission wheel shaft 2.Main transmission wheel shaft 2, secondary drive wheel 1 adopt Spielpassung.By controlling the machining accuracy of secondary drive wheel 1, main transmission wheel shaft 2, it connects the purpose of precision can to reach control.Again joining plate 3 is placed in the seam of secondary drive wheel 1, aligns the screw of its counterbore and main transmission wheel shaft 2 counterfaces.Put into the counterbore of joining plate 3 and tighten with 1 group of joint bolt 4, make the end face of joining plate 3 bottom surfaces and main transmission wheel shaft 2 fastening.At this moment, the screwing force of joint bolt 4 is fitted on the end face of main transmission wheel shaft 2 joining plate 3 bottom surfaces tightly, makes two faying surfaces produce very big static friction power.The joint bolt of tightening 4 then only bears pulling force.Rotate secondary drive wheel 1, align the in addition 1 group of counterbore on the joining plate 3 and the screw of secondary drive wheel 1, tighten, make joining plate 3 bottom surfaces and secondary drive wheel 1 seam bottom surface fastening with other 1 group of joint bolt 4.At this moment, the screwing force of joint bolt 4 is fitted on the secondary drive wheel 1 seam bottom surface joining plate 3 bottom surfaces tightly, makes two faying surfaces produce very big static friction power.The joint bolt of tightening 4 then only bears pulling force.
After finishing above assembling, assembly is installed on the body with bolt.The moment of torsion transmission of structure of the present invention realizes by friction that fully 4 of joint bolts bear pulling force.Because pulling force makes the pitch of joint bolt 4 produce microcosmic and elongates, screw thread distortion self-locking is difficult for threading off.
Claims (2)
1. a high-precision coaxial coupling mechanism comprises secondary drive wheel (1), main transmission wheel shaft (2), joining plate (3), joint bolt (4); It is characterized in that, described secondary drive wheel (1) bottom surface has seam, uniform first group of screw on the described seam, described main transmission wheel shaft (2) is gone up uniform second group of screw, described joining plate (3) be provided with described secondary drive wheel (1) and main transmission wheel shaft (2) on the corresponding countersunk head screw of screw, described secondary drive wheel (1) and described main transmission wheel shaft (2) Spielpassung, described joining plate (3) is arranged in the seam of described secondary drive wheel (1), align the screw of its countersunk head screw and main transmission wheel shaft (2) counterface, put into the countersunk head screw of joining plate (3) and tighten with one group of joint bolt (4), make the end face of joining plate (3) bottom surface and main transmission wheel shaft (2) fastening.Rotate secondary drive wheel (1) and align the screw of another group countersunk head screw and secondary drive wheel (1) on the joining plate (3), tighten with another group joint bolt (4), make joining plate (3) bottom surface and secondary drive wheel (1) seam bottom surface fastening, the screwing force of joint bolt (4) is fitted on secondary drive wheel (1) the seam bottom surface joining plate (3) bottom surface tightly.
2. a kind of highi degree of accuracy coaxial coupling mechanism according to claim 1 is characterized in that: described joining plate (3) adopts heat treatment process to increase linking intensity and joint stiffness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102258787A CN101865215B (en) | 2010-07-14 | 2010-07-14 | High-precision coaxial coupling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102258787A CN101865215B (en) | 2010-07-14 | 2010-07-14 | High-precision coaxial coupling mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865215A true CN101865215A (en) | 2010-10-20 |
| CN101865215B CN101865215B (en) | 2012-04-18 |
Family
ID=42957075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102258787A Expired - Fee Related CN101865215B (en) | 2010-07-14 | 2010-07-14 | High-precision coaxial coupling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865215B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988005504A1 (en) * | 1987-01-16 | 1988-07-28 | Tokyo Jido Kiko Kabushiki Kaisha | Bushing for driving wheels |
| JP2004162781A (en) * | 2002-11-12 | 2004-06-10 | Gates Unitta Asia Co | Method of fastening shaft to rotor |
| CN1703592A (en) * | 2002-12-04 | 2005-11-30 | 爱知机械工业株式会社 | Flywheel |
-
2010
- 2010-07-14 CN CN2010102258787A patent/CN101865215B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988005504A1 (en) * | 1987-01-16 | 1988-07-28 | Tokyo Jido Kiko Kabushiki Kaisha | Bushing for driving wheels |
| JP2004162781A (en) * | 2002-11-12 | 2004-06-10 | Gates Unitta Asia Co | Method of fastening shaft to rotor |
| CN1703592A (en) * | 2002-12-04 | 2005-11-30 | 爱知机械工业株式会社 | Flywheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101865215B (en) | 2012-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106969134B (en) | Bearing positioning pre-tightening adjustment and sealing structure for input end of middle bridge | |
| CN201382067Y (en) | Connection device combined by bolt and taper sleeve | |
| CN201866054U (en) | Novel shaft end locking structure | |
| CN102207119B (en) | Coaxial double-nut coupling mechanism | |
| CN101865215B (en) | High-precision coaxial coupling mechanism | |
| CN217653199U (en) | Speed reducer input shaft connecting structure | |
| CN215830987U (en) | Movable triple-force-transmission anti-torque device for large-scale transmission friction disc | |
| CN207534743U (en) | A kind of nut assembly tooling | |
| CN207448340U (en) | A kind of power of determining torque box spanner | |
| CN203297581U (en) | Axial fixing structure of sun wheel | |
| CN114310790B (en) | Assembling and disassembling device and method for interference thread anti-loosening screw sleeve | |
| CN201050561Y (en) | Electric fixed torque spanner bi-directional unequal torque freewheeling clutch | |
| CN212839233U (en) | Pretightening force adjustable high-bearing planetary roller screw pair structure | |
| CN114922912A (en) | Wind turbine main shaft assembly | |
| CN209838988U (en) | End pin type rigid coupling | |
| CN207089407U (en) | A kind of new automobile electric power-assisted steering apparatus worm bearing fixed structure | |
| US7331873B2 (en) | Over-torque break away rotational coupling and a method of assembling same | |
| CN107020598B (en) | A kind of main bearing of engine bolt tightening method | |
| CN202646432U (en) | Engine disk shaft connection device | |
| CN215521691U (en) | Auxiliary reinforcing device for chain wheel shaft group | |
| CN219655235U (en) | Transmission mechanism suitable for connecting bucket wheel driving speed reducer with bucket wheel shaft | |
| CN217324781U (en) | Torque-limiting rotating shaft structure for locking nut | |
| CN107336740A (en) | A kind of new automobile electric power-assisted steering apparatus worm bearing fixed structure | |
| CN102241005A (en) | Quickly screwed tightening device for threaded fastener | |
| CN220956675U (en) | Belt pulley structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20120714 |