CN203732368U - Improved bolt tensile strength detection device - Google Patents
Improved bolt tensile strength detection device Download PDFInfo
- Publication number
- CN203732368U CN203732368U CN201420110945.4U CN201420110945U CN203732368U CN 203732368 U CN203732368 U CN 203732368U CN 201420110945 U CN201420110945 U CN 201420110945U CN 203732368 U CN203732368 U CN 203732368U
- Authority
- CN
- China
- Prior art keywords
- pulling force
- force sleeve
- sleeve
- tensile strength
- sidewall
- 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
Links
Abstract
The utility model relates to an improved bolt tensile strength detection device which comprises an upper tensile sleeve and a lower tensile sleeve, wherein an opening of the upper tensile sleeve is upward; a first through hole out of which a threaded rod extends and a hexagonal groove into which a nut is embedded are formed in the bottom center of the upper tensile sleeve; a detachable sleeve head is additionally arranged in the hexagonal groove; dovetail clamping bumps A are inwards and symmetrically arranged on the sidewall A of the upper tensile sleeve; an opening of the lower tensile sleeve is downward; a second through hole into which the threaded rod extends is formed in the top center of the lower tensile sleeve; dovetail clamping bumps B are inwards and symmetrically arranged on the sidewall B of the lower tensile sleeve. According to the improved bolt tensile strength detection device, a bolt is firmly fixed in the device, and is prevented from forward and backward swinging and displacement, so that the tensile strength measurement accuracy is improved.
Description
Technical field
The utility model relates to a kind of physical strength pick-up unit, is specifically related to a kind of improved bolt device for testing tensile strength.
Background technology
Different physical construction is for the requirement of strength difference of adopted bolt, therefore need bolt tensile strength to measure, while testing bolt tensile strength at present, generally adopt jaw type clamping device clamps bolt two ends and apply pulling force and measure, but jaw type clamping device easily makes bolt get loose, be shifted, or bolt is produced shearing force and affects the Accurate Determining of tensile strength.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of bolt device for testing tensile strength that can Accurate Determining bolt tensile strength.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of improved bolt device for testing tensile strength, it comprises upper pulling force sleeve and lower pulling force sleeve, wherein, described upper pulling force sleeve openings upward, described upper pulling force sleeve bottom centre is provided with the first through hole and the hexagonal indentations of stretching out for screw rod, in described hexagonal indentations, add dismountable pullover, described pullover draw-in groove and the footpath pipe that comprises that one connects, described draw-in groove outside is hexagon, match with described hexagonal indentations, described draw-in groove inside is hexagon, and size and nut match; Described footpath pipe external diameter and the first through hole internal diameter match, and described footpath bore and screw size match, and described upper pulling force sleeve upwards extends to two the sidewall A in left and right, and described sidewall A is inwardly symmetrically arranged with dovetail card convex A; Down, described lower pulling force sleeve top center is provided with the second through hole stretching into for screw rod to described lower pulling force sleeve openings, and described lower pulling force sleeve extends to two the sidewall B in left and right downwards, and described sidewall B is inwardly symmetrically arranged with dovetail card convex B.
Further, the improved bolt device for testing tensile strength of one described in the utility model, is provided with internal thread in wherein said the second through hole.
Known in this field, bolt comprises nut and screw rod two parts, and bolt can be with nut combinations for machinery combination, fixing.
The beneficial effect that adopts technique scheme to produce is:
1, the bolt device for testing tensile strength that the utility model provides, can make bolt be firmly secured in device, avoids bolt swing to affect the Accurate Determining of tensile strength.
2, adopt dismountable pulloverly, can change pullover according to different tested bolt sizes, solved different size bolt and do not mated and cause bolt position fixing with upper pulling force sleeve dimensions, affect the problem of measurement result.
3, the internal thread in the second through hole in lower pulling force sleeve design, can further increase the fixing stability of bolt, even if mounting nuts can Accurate Determining yet, is specially adapted to the shorter bolt of screw rod and measures.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is working state schematic representation of the present utility model;
Fig. 3 is the left view of the utility model Fig. 1;
Fig. 4 is and the supporting pull weights coupling part structural representation being connected of the utility model.
Wherein, 1 upper pulling force sleeve, 2 lower pulling force sleeves, 3 bolts, 4 nuts, coupling part on 5 pull weights, coupling part under 6 pull weights, 11 first through holes, 12 hexagonal indentations, 13 dovetail card convex A, 14 is pullover, 15 sidewall A, 21 second through holes, 22 dovetail card convex B, 23 sidewall B, 31 nuts, 32 screw rods, 141 draw-in grooves, 142 footpath pipes, 51 dovetail groove A, 61 dovetail groove B.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Fig. 1 ~ 3, a kind of improved bolt device for testing tensile strength, it comprises upper pulling force sleeve 1 and lower pulling force sleeve 2, wherein, described upper pulling force sleeve 1 is opening up, described upper pulling force sleeve 1 bottom centre is provided with the first through hole 11 and the hexagonal indentations 12 of stretching out for screw rod 32, in described hexagonal indentations 12, add dismountable pullover 14, described pullover 14 comprise draw-in groove 141 and the footpath pipe 142 that one connects, described draw-in groove 141 outsides are hexagon, match with described hexagonal indentations 12, described draw-in groove 141 inside are hexagon, size and nut 31 match, 142 external diameters are managed in described footpath and the first through hole 11 internal diameters match, and 142 internal diameters are managed in described footpath and screw rod 32 sizes match, and described upper pulling force sleeve 1 upwards extends to two the sidewall A 15 in left and right, and described sidewall A 15 is inwardly symmetrically arranged with dovetail card convex A 13, described lower pulling force sleeve 2 is opening down, described lower pulling force sleeve 2 top center are provided with the second through hole 21 stretching into for screw rod 32, described lower pulling force sleeve 2 extends to two the sidewall B 23 in left and right downwards, described sidewall B 23 is inwardly symmetrically arranged with dovetail card convex B 22, in described the second through hole 21, is provided with internal thread.
Be illustrated in figure 4 and the supporting pull weights coupling part being connected of the utility model, be divided into that on pull weights, under coupling part 5 and pull weights coupling part 6,2 dovetail grooves are all set in its left and right sides, on pull weights, under coupling part 5 and pull weights, the dovetail groove of coupling part 6 is respectively dovetail groove A 51 and dovetail groove B 61, and described dovetail groove A 51, dovetail groove B 61 match with dovetail card convex A 13 of the present utility model and dovetail card convex B 22 respectively.
Its principle of work is as follows:
When use, be arranged in upper pulling force sleeve 1 pullover 14, by bolt 3 with nut 31 upward, screw rod 32 mode down puts into pullover 14 from upper pulling force sleeve 1, and screw rod 32 is stretched out from footpath pipe 142, and nut 31 embeds in draw-in groove 141 just, by corresponding the dovetail groove A 51 of the upper coupling part 5 of dovetail card convex A 13 and the pull weights supporting with the utility model, upper pulling force sleeve 1 level is pushed to the upper coupling part 5 of pull weights; Screw rod 32 bottoms are screwed in lower pulling force sleeve 2 along female the second through hole 21, from the inner nut 4 of using of lower pulling force sleeve 2, bolt 3 is fixed, lower pulling force sleeve 2 levels are pushed to the lower coupling part 6 of the pull weights supporting with the utility model, start pull weights, make pull weights upper and lower coupling part difference both direction tractive up and down, measure.
Claims (2)
1. an improved bolt device for testing tensile strength, it is characterized in that: comprise upper pulling force sleeve (1) and lower pulling force sleeve (2), wherein, described upper pulling force sleeve (1) is opening up, described upper pulling force sleeve (1) bottom centre is provided with the first through hole (11) and the hexagonal indentations (12) of stretching out for screw rod (32), in described hexagonal indentations (12), add dismountable pullover (14), described pullover (14) comprise draw-in groove (141) and the footpath pipe (142) that one connects, described draw-in groove (141) outside is hexagon, match with described hexagonal indentations (12), described draw-in groove (141) inside is hexagon, size and nut (31) match, described footpath pipe (142) external diameter and the first through hole (11) internal diameter match, described footpath pipe (142) internal diameter and screw rod (32) size match, described upper pulling force sleeve (1) upwards extends to two the sidewall A(15 in left and right), described sidewall A(15) be inwardly symmetrically arranged with dovetail card convex A(13), described lower pulling force sleeve (2) is opening down, described lower pulling force sleeve (2) top center is provided with the second through hole (21) stretching into for screw rod (32), described lower pulling force sleeve (2) extends to two the sidewall B(23 in left and right downwards), described sidewall B(23) be inwardly symmetrically arranged with dovetail card convex B(22).
2. the improved bolt device for testing tensile strength of one as claimed in claim 1, is characterized in that: in described the second through hole (21), be provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110945.4U CN203732368U (en) | 2014-03-12 | 2014-03-12 | Improved bolt tensile strength detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110945.4U CN203732368U (en) | 2014-03-12 | 2014-03-12 | Improved bolt tensile strength detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203732368U true CN203732368U (en) | 2014-07-23 |
Family
ID=51202431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110945.4U Expired - Fee Related CN203732368U (en) | 2014-03-12 | 2014-03-12 | Improved bolt tensile strength detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203732368U (en) |
-
2014
- 2014-03-12 CN CN201420110945.4U patent/CN203732368U/en not_active Expired - Fee Related
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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: 20140723 Termination date: 20160312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |