CN202531587U - Screw type driving tensioning mechanism - Google Patents
Screw type driving tensioning mechanism Download PDFInfo
- Publication number
- CN202531587U CN202531587U CN2012200591243U CN201220059124U CN202531587U CN 202531587 U CN202531587 U CN 202531587U CN 2012200591243 U CN2012200591243 U CN 2012200591243U CN 201220059124 U CN201220059124 U CN 201220059124U CN 202531587 U CN202531587 U CN 202531587U
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- CN
- China
- Prior art keywords
- screw
- swivel nut
- threaded sleeve
- screw rod
- ring threaded
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a screw type driving tensioning mechanism, in particular to a mechanism which drives a screw inner-ring threaded sleeve to displace by rotating a screw outer-ring threaded sleeve so that the screw deforms correspondingly along with the displacement of the screw inner-ring threaded sleeve. The displacement and the deformation amount of the screw can be controlled by controlling the torque of rotating the screw outer ring. The screw type driving tensioning mechanism comprises the screw outer-ring threaded sleeve, the screw inner-ring threaded sleeve and a transition pad matched with the inner shape of the screw inner-ring threaded sleeve, wherein the screw outer-ring threaded sleeve is matched with the screw inner-ring threaded sleeve, the transition pad is matched and connected with the screw inner-ring threaded sleeve, and the screw inner-ring threaded sleeve is connected with the screw. By arranging the torque acting on the screw outer-ring threaded sleeve, the screw inner-ring threaded sleeve and the transition pad, because no displacement occurs between the screw inner-ring threaded sleeve and the screw, no uncertain frictional force exists, the deformation quantity of the screw can be accurately controlled by controlling the torque of rotating the screw outer-ring threaded sleeve, so that the gap between the inner-ring threaded sleeve and the screw can be effectively eliminated, and the error of the stretching deformation amount of the screw can be reduced.
Description
Technical field
The utility model relates to a kind of screw type transmission tensioning mechanism, especially a kind of length or covert screw type transmission tensioning mechanism device of measuring that reaches accurate stretching screw rod of tightening through moment.
Background technique
It is a kind of Placement very common in the mechanical industry that screw rod connects, and the component connection of a lot of jumboes and lathe all adopts screw rod to connect, with for convenience detach and maintenance.Existing swivel nut screw rod connects can use traditional moment method locking regular screw threads locking swivel nut usually; Or hydraulic nut; Or pulling method is locked contact base surface place swivel nut; But stretch when sending out locking screw, when the manual moment locking screw of screw rod overlaps, because the uncertain meeting of frictional force of swivel nut and screw rod makes the amount of deformation of screw rod produce 20～50% errors; And stretch when sending out the stretching screw rod, owing to need manual lock swivel nut, the tensile buckling error of screw rod can reach 10%-15%; Traditional hand locking screw distortion inaccuracy then can be bigger.And the existence of this error, to a great extent because swivel nut is uneven with the frictional force that contacts base surface, and the screw thread frictional force between swivel nut internal thread and the driving screw is uncertain, though driving screw is stretched, the tensile buckling error is bigger.And heavy mechanical equipment or machine tool component connect, and more be prone to aforesaid screw rod tensile deformation, and error are bigger, are prone to make produce between the parts that connected become flexible, and can't reach industrial requirements, cause producing more serious accident.
The locking precision problem of major diameter screw rod has become the bottleneck that China's new energy, heavy equipment already develop, to have a strong impact on our heavy equipment industry product ability to the higher level development.
The model utility content
For overcoming the deficiency of above-mentioned prior art, the utility model provides a kind of screw type transmission tensioning mechanism.
Concrete technological scheme is following:
A kind of screw type transmission tensioning mechanism; Be provided with screw rod outer ring swivel nut, the two-flight screw inner ring swivel nut of connecting thread in comprising and be provided with the transition pad that interior shape matches with two-flight screw inner ring swivel nut peripheral shape; Screw rod outer ring swivel nut is connected with two-flight screw inner ring swivel nut threaded one end through interior square type of establishing or saw type checknut; The screw rod inner ring swivel nut the other end is socketed in the transition pad, and the inside of two-flight screw inner ring swivel nut is provided with the screw thread that adapts with screw rod to be connected.
Further, said screw rod outer ring swivel nut lower surface amplexiforms with said transition pad contact surface smooth.
Further, said transition pad lower surface is non-smooth flat.
Further, the non-smooth lower surface of said transition packing ring is jagged decorative pattern.
Further, to be provided with the screw thread that adapts with screw rod to be connected be the part screw thread in the inside of said screw rod inner ring swivel nut.
The beneficial effect of the utility model is: the utility model screw type transmission tensioning mechanism; Through socket parts screw rod inner ring swivel nut, screw rod inner ring swivel nut and transition pad are set; With uncertain frictional force between uncontrollable swivel nut and the uncertain frictional force in surface of contact place, driving screw and the swivel nut connecting thread that contact base surface; Be converted into the controlled screw rod inner ring swivel nut of precision with frictional force between frictional force, the threaded inner ring swivel nut of screw rod inner ring swivel nut connecting thread between the surface of contact of transition pad; Make it evenly measurable, reduce the error of screw rod tensile buckling.And further transition pad lower surface is set to non-smooth flat, increases swivel nut with frictional force between the contact base surface.
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model screw type transmission tensioning mechanism;
Fig. 2 is the bottom decorative pattern schematic representation of transition pad 3;
Fig. 3-the 1st, the swivel nut screw rod connection diagram of the utility model screw type transmission tensioning mechanism, and
Fig. 3-2 is the sectional view of Fig. 3-1 along the AA line;
Fig. 4 places figure for application of force handle.
Label declaration in the accompanying drawing:
1, screw rod outer ring swivel nut;
2, screw rod inner ring swivel nut;
3, transition pad;
4, the first contact base surface;
5, the second contact base surface;
6, driving screw;
7, screw rod outer ring swivel nut application of force handle;
8, transition pad application of force handle.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation, but should not limit the protection domain of the utility model with this.
See also accompanying drawing 1, this figure is the decomposing schematic representation of the utility model screw type transmission tensioning mechanism, be provided with in comprising connecting thread screw rod outer ring swivel nut 1, two-flight screw inner ring swivel nut 2 and in be provided with the transition pad 3 of fit keyway.Screw rod inner ring swivel nut 2 is made up of with the rear end that is socketed in the transition pad 3 front end that is socketed in the screw rod outer ring swivel nut 1.Screw rod inner ring swivel nut screw thread is set to the part screw thread in the present embodiment, and promptly screw rod inner ring swivel nut 2 is smooth circumferential surface with driving screw connection inwall front portion, and the inwall rear portion is provided with the threaded screw thread that adapts.Screw rod outer ring swivel nut 1, transition pad 3 connect through screw rod inner ring swivel nut 2, and screw rod outer ring swivel nut 1 lower surface can not influence the distortion inaccuracy that screw rod stretches with the smooth smooth applying of transition pad 3 upper surface highi degree of accuracy to guarantee the frictional force between the faying surface.Transition pad 3 bottoms are provided with the out-of-flatness decorative pattern, and present embodiment is the decorative pattern of zigzag system, and shown in accompanying drawing 2, this multiple tooth structure bottom surface contacts with contact base surface surface when fastening, to increase the frictional force of packing ring 3 with contact base surface surface of contact.
See also accompanying drawing 3-1 and Fig. 3-2; For swivel nut screw rod connection diagram and along the sectional view of AA line; As shown in the figure; Driving screw 6 passes the first contact base surface 4 to be connected contacts base surface 5 with second attachment hole, and its afterbody that is provided with screw thread is connected with the internal thread of the screw rod inner ring swivel nut 2 of the utility model swivel nut mutually.Screw rod outer ring swivel nut 1, transition pad 3 are respectively through 2 sockets of screw rod inner ring swivel nut.The threaded outer ring of transition pad 3 upper surfaces swivel nut 1 lower surface smooth; The lower surface that transition pad 3 is provided with jagged decorative pattern amplexiforms with the first contact base surface 4 mutually; The counter-force effect that the also further application of force handle 8 in transition pad 3 outsides is connected is with further fixedly transition pad 3.Screw rod outer ring swivel nut 1 rotates after through the effect of application of force handle.
When carrying out the locking of swivel nut screw rod; Through the effect of rotation application of force handle; Impel 1 rotation of screw rod inner ring swivel nut; Screw rod inner ring swivel nut 2 and the transition pad 3 that connects thereof keep static, prop up the first contact base surface 4, and screw rod inner ring swivel nut 2 is stressed along under the screw rod outer ring swivel nut 1 front threads screw, and screw rod outer ring swivel nut 1 lower surface moves closer to final smooth amplexiforming with transition pad 3 upper surfaces; In be connected to screw rod inner ring swivel nut 2 treat 6 of drawing driving screws by 2 pullings with on move, and upwards stretched until fixing.At this moment; Screw rod outer ring swivel nut 1 smoothly amplexiforms with the surface of contact highi degree of accuracy of transition pad 3; Frictional force balanced (actual here frictional force is very little); Reduced deformation error possible in the screw rod drawing process, and the further highi degree of accuracy interlock screw thread of 1 of screw rod inner ring swivel nut 2 threaded outer ring swivel nut, the deformation error can further be reduced.The utility model screw type transmission tensioning mechanism; Through socket parts screw rod outer ring swivel nut 1, screw rod inner ring swivel nut 2 and transition pad 3 are set; With uncertain frictional force between uncontrollable swivel nut and the uncertain frictional force in surface of contact place, driving screw and the swivel nut connecting thread that contact base surface; Be converted into the controlled screw rod outer ring swivel nut 1 of precision with not having frictional force between frictional force, screw rod inner ring swivel nut 2 threaded inner ring swivel nut 1 connecting threads between the surface of contact of transition pad 3; Make the screw rod distortion evenly measurable, reduce the error of screw rod tensile buckling.
The preferred embodiment that the above is merely the utility model is not the practical range that is used for limiting the utility model.Have common knowledge the knowledgeable in the technical field under any, in the spirit that does not break away from the utility model and scope, when can doing various changes and retouching, so the protection domain of the utility model ought be looked claims institute confining spectrum and is as the criterion.
Claims (5)
1. screw type transmission tensioning mechanism; It is characterized in that; Be provided with screw rod outer ring swivel nut, the two-flight screw inner ring swivel nut of connecting thread in comprising and be provided with the transition pad that interior shape matches with two-flight screw inner ring swivel nut peripheral shape; Screw rod outer ring swivel nut is connected with two-flight screw inner ring swivel nut threaded one end through interior square type of establishing or saw type checknut; The screw rod inner ring swivel nut the other end is socketed in the transition pad, and the inside of two-flight screw inner ring swivel nut is provided with the screw thread that adapts with screw rod to be connected.
2. screw type transmission tensioning mechanism as claimed in claim 1 is characterized in that, said screw rod outer ring swivel nut lower surface amplexiforms with said transition pad contact surface smooth.
3. screw type transmission tensioning mechanism as claimed in claim 1 is characterized in that, said transition pad lower surface is non-smooth flat.
4. screw type transmission tensioning mechanism as claimed in claim 3 is characterized in that, the non-smooth lower surface of said transition packing ring is jagged decorative pattern.
5. screw type transmission tensioning mechanism as claimed in claim 1 is characterized in that it is the part screw thread that the inside of said screw rod inner ring swivel nut is provided with the screw thread that adapts with screw rod to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200591243U CN202531587U (en) | 2012-02-22 | 2012-02-22 | Screw type driving tensioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200591243U CN202531587U (en) | 2012-02-22 | 2012-02-22 | Screw type driving tensioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531587U true CN202531587U (en) | 2012-11-14 |
Family
ID=47132776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200591243U Expired - Fee Related CN202531587U (en) | 2012-02-22 | 2012-02-22 | Screw type driving tensioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531587U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133498A (en) * | 2013-02-26 | 2013-06-05 | 李圣用 | Mechanical nut device and bolt |
| CN106837980A (en) * | 2016-04-20 | 2017-06-13 | 李圣用 | A kind of combined type self-reaction force stop nut with pinpoint accuracy torque coefficient |
| WO2017181736A1 (en) * | 2016-04-20 | 2017-10-26 | 李圣用 | Combinatory locknut having self reaction force and high precision torque coefficient |
| CN113551323A (en) * | 2021-07-23 | 2021-10-26 | 安第斯(浙江)能源科技有限公司 | Dehumidifier and control system |
-
2012
- 2012-02-22 CN CN2012200591243U patent/CN202531587U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133498A (en) * | 2013-02-26 | 2013-06-05 | 李圣用 | Mechanical nut device and bolt |
| CN106837980A (en) * | 2016-04-20 | 2017-06-13 | 李圣用 | A kind of combined type self-reaction force stop nut with pinpoint accuracy torque coefficient |
| WO2017181736A1 (en) * | 2016-04-20 | 2017-10-26 | 李圣用 | Combinatory locknut having self reaction force and high precision torque coefficient |
| CN106837980B (en) * | 2016-04-20 | 2020-02-07 | 李圣用 | Combined self-reaction anti-loose nut with high-precision torque coefficient |
| CN113551323A (en) * | 2021-07-23 | 2021-10-26 | 安第斯(浙江)能源科技有限公司 | Dehumidifier and control system |
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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: 20121114 Termination date: 20200222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |