CN205047595U - Many tops push away tensioning ware - Google Patents
Many tops push away tensioning ware Download PDFInfo
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- CN205047595U CN205047595U CN201520834610.1U CN201520834610U CN205047595U CN 205047595 U CN205047595 U CN 205047595U CN 201520834610 U CN201520834610 U CN 201520834610U CN 205047595 U CN205047595 U CN 205047595U
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- bolt
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- sclerosis
- push away
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Abstract
The utility model discloses a many tops push away tensioning ware, push away screw, sclerosis private school circle and total nut including total bolt, top, it includes shank of bolt and threaded rod to indulge the bolt, the bolt rod cover puts one sclerosis private school circle, the threaded rod passes through threaded connection total nut, the center of total nut is equipped with and is used for the meshing the screw hole of threaded rod, the edge of total nut is equipped with and is used for the meshing the top pushes away the screw hole of screw, total bolt, top push away screw, sclerosis private school circle and total nut and all make with the alloy steel material. The utility model discloses, adopt the pure tension of the pretightning force locking that many tops push away tensioning ware is higher to permit the bigger pretightning force of mutually unidimensional acquisition, simultaneously, this design alternative elastic alloy steel material, increased elasticity with the fatigue resistance that provides bolted connection spare can, the ability of high pretightning force makes with the accuracy and to design more small -size's bolt, the size of compactness and the reduction of mounting tool size make the machine size reducible, have reduced material and processing cost.
Description
Technical field
The utility model relates to field of mechanical technique, is specially a kind of many pushing tows stretcher.
Background technique
The object of bolton produces to be greater than load, accurate, pretightening force that can be lasting.As long as pretightening force is greater than load, bolt connects and would not go wrong, but pretightening force is excessive, and link and bolt body also can be caused to damage.Realize accurate pretightening force, particularly the fastening tool of large diameter bolt is acquired a certain degree of difficulty.In general, want the bolt that fastening good diameter is greater than 1 inch to need to use torque amplifier.Traditional locking method comprises hammering, heating, hydraulic spanner, hydraulic elongator etc.Not only there is low precision, expend time in these methods, apparatus expensive, potential safety hazard, and often occur thread biting locking (metal adhesion) phenomenon.
Model utility content
The purpose of this utility model is to provide a kind of many pushing tows stretcher, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme: a kind of many pushing tows stretcher, comprise total bolt, pushing tow screw, sclerosis private school circle and total nut, described vertical bolt comprises bolt shank and threaded stem, described bolt shank cover puts the private school circle that to harden described in, described threaded stem is threaded connection described total nut, the center of described total nut is provided with the tapped hole for engaging described threaded stem, the edge of described total nut is provided with the tapped hole for engaging described pushing tow screw, described total bolt, pushing tow screw, sclerosis private school circle and total nut are all made with alloy steel material.
Preferably, be arranged on described total nut edge and comprise many groups for the tapped hole engaging described threaded stem, and the center of circle of many group tapped holes is positioned at and is same as on circularity line.
Preferably, during installation, fastener is fixed between the hexagon head of described total bolt and sclerosis private school circle.
Preferably, the top of described pushing tow screw is provided with six prism structures.
Compared with prior art, the beneficial effects of the utility model are: the utility model adopts the pretightening force pure tension force locking that many pushing tows stretcher is higher to allow same size to obtain larger pretightening force, simultaneously, elastic alloy Steel material is selected in this product specification, add elasticity to provide the anti-fatigue performance of bolt connection piece, the ability of high pretightening force and accuracy make it possible to the bolt designing smaller szie, the minimizing of compact size and setting tool size makes machine dimensions to reduce, and decreases material and processing cost.
Accompanying drawing explanation
Fig. 1 be a kind of many pushing tows stretcher of the utility model partly cut open structural representation;
Fig. 2 is the plan structure schematic diagram of a kind of many pushing tows stretcher of the utility model;
In figure: 1, total bolt, 2, bolt shank, 3, threaded stem, 4, pushing tow screw, 5, sclerosis private school circle, 6, total nut.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-2, a kind of embodiment that the utility model provides: a kind of many pushing tows stretcher, comprise total bolt 1, pushing tow screw 4, sclerosis private school circle 5 and total nut 6, described vertical bolt 1 comprises bolt shank 2 and threaded stem 3, described bolt shank 2 cover puts the private school circle 5 that to harden described in, described threaded stem 3 is threaded connection described total nut 6, the center of described total nut 6 is provided with the tapped hole for engaging described threaded stem 3, the edge of described total nut 6 is provided with the tapped hole for engaging described pushing tow screw 4, described total bolt 1, pushing tow screw 4, sclerosis private school circle 5 and total nut 6 are all made with alloy steel material, be arranged on described total nut 6 edge and comprise many groups for the tapped hole engaging described threaded stem 3, and the center of circle of many group tapped holes is positioned at and is same as on circularity line, during installation, fastener is fixed between the hexagon head of described total bolt 1 and sclerosis private school circle 5, the top of described pushing tow screw 4 is provided with six prism structures.
Concrete usage mode: in utility model works, being fixed on fastener between the hexagon head of described total bolt 1 and sclerosis private school circle 5, by making to screw up with a wrench screw 4 at most, creating powerful jacking force (axis).This jacking force acts directly on sclerosis private school circle 5.Pushing tow screw 4 diameter that rubs is little, therefore can realize high jacking force with relatively little moment of torsion.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
Claims (4)
1. pushing tow stretcher more than a kind, comprise total bolt (1), pushing tow screw (4), sclerosis private school circle (5) and total nut (6), described vertical bolt (1) comprises bolt shank (2) and threaded stem (3), described bolt shank (2) cover puts the private school circle (5) that to harden described in, described threaded stem (3) is threaded connection described total nut (6), the center of described total nut (6) is provided with the tapped hole for engaging described threaded stem (3), the edge of described total nut (6) is provided with the tapped hole for engaging described pushing tow screw (4), it is characterized in that: described total bolt (1), pushing tow screw (4), sclerosis private school circle (5) and total nut (6) are all made with alloy steel material.
2. one many pushing tows stretcher according to claim 1, is characterized in that: be arranged on described total nut (6) edge and comprise many groups for the tapped hole engaging described threaded stem (3), and the center of circle of many group tapped holes is positioned at and is same as on circularity line.
3. one many pushing tows stretcher according to claim 1, is characterized in that: during installation, and fastener is fixed between the hexagon head of described total bolt (1) and sclerosis private school circle (5).
4. one many pushing tows stretcher according to claim 1, is characterized in that: the top of described pushing tow screw (4) is provided with six prism structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834610.1U CN205047595U (en) | 2015-10-27 | 2015-10-27 | Many tops push away tensioning ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834610.1U CN205047595U (en) | 2015-10-27 | 2015-10-27 | Many tops push away tensioning ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047595U true CN205047595U (en) | 2016-02-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834610.1U Active CN205047595U (en) | 2015-10-27 | 2015-10-27 | Many tops push away tensioning ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047595U (en) |
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2015
- 2015-10-27 CN CN201520834610.1U patent/CN205047595U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |