CN2760543Y - Single face shearing device for safety pin - Google Patents
Single face shearing device for safety pin Download PDFInfo
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- CN2760543Y CN2760543Y CN 200420114946 CN200420114946U CN2760543Y CN 2760543 Y CN2760543 Y CN 2760543Y CN 200420114946 CN200420114946 CN 200420114946 CN 200420114946 U CN200420114946 U CN 200420114946U CN 2760543 Y CN2760543 Y CN 2760543Y
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- shear
- safety pin
- bearing
- sleeve
- cutting
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Abstract
The utility model relates to a single-face cutting device for a safety pin, which comprises a supporting seat mechanism, a press knife mechanism and a cutting sleeve for a supporting seat, wherein the supporting seat mechanism comprises a main load bearing cutting supporting seat and a guide supporting seat; the press knife mechanism comprises a cutting sleeve for a press knife and a cutting press knife; the main load bearing cutting supporting seat is connected and fixed with the guide supporting seat by bolts; the cutting sleeve of the press knife is arranged on the lower end of the cutting press knife; the cutting sleeve of the supporting seat is arranged on the upper end of the main load bearing cutting supporting seat; the end surface of the cutting end of the cutting sleeve of the supporting seat and the cutting sleeve of the press knife is provided with an inclined surface of four DEG, and furthermore, the utility model also comprises regulation spacer blocks and regulation washers, wherein the regulation spacer blocks are arranged on the guide supporting seat; the regulation washers are arranged between the main load bearing cutting supporting seat and the guide supporting seat. The single-face cutting device for the safety pin provided by the utility model can realize a single-face cutting test for a safety pin of large size and measure the cutting resistance strength of safety pins of various large size standards, and furthermore, the single-face cutting device for the safety pin has the advantages of simple structure and good extensibility.
Description
Technical field
The utility model relates to a kind of safety pin single shear device, specifically, relates to a kind of large scale safety pin single shear device.
Background technology
The safety pin that large-scale key equipment such as milling train is equipped with should satisfy certain military service condition of work, promptly this safety pin shearing force of being born in normal operation must be in the specific scope, thereby both can guarantee the normal operation of main equipments such as milling train, safety pin can the purpose of design of normal rupture to guarantee that interlinked mechanism is intact in the time of being implemented in the shearing force overload again.When purchasing reinspection, need carry out safety pin single shear testing in kind, meet the safety in production demand of main equipment to guarantee its cutting performance for the safety pin spare part of these visual plants.And the domestic and international test standard of present safety pin shear test comprises test method and testing equipment, all only only is only applicable to the two-sided cutting test of the shearing sample of diameter below 25mm, can't satisfy the shear test to large-scale safety pin.
Can the patent No. be " 3543575 " United States Patent (USP), and it has introduced a kind of safety pin shearing test device, be used to verify the disrumpent feelings situation of safety pin to be measured under simulation upper and lower limit moment of torsion loading environment, to judge whether the safety pin spare part is qualified, check and accept.This safety pin test unit directly connects with milling train, by milling train the main shaft of test unit is applied moment of torsion, is subjected to the restriction of milling train ordinary production, needs to coordinate test period.The main shaft of this safety pin test unit produces the rotation relative with axle sleeve under the torque drive that milling train applies, the safety pin that is installed between main shaft and the axle sleeve is applied single shear shear force.This safety pin test unit is simulated the operating mode of actual milling train, and structure is very complicated, only is applicable to the simulation test of a certain specific milling train safety pin, and extensibility is relatively poor.
In addition, now at the shearing die that also has the blanking of a kind of big specification bar to use that uses, it is used for bar is cut off, but the shear resistance of prod material not, and the gap between bar and shearing knife edge is relatively large, causes the flexural deformation of sheared blank face easily.
Summary of the invention
The purpose of this utility model is to provide a kind of safety pin single shear device, by the shear sleeve of outfit with safety pin size match to be measured, can realize single shear testing to the large scale safety pin, measure the shearing strength of the safety pin of various large scale specifications, and this safety pin single shear device construction is simple, and extensibility is good.
For achieving the above object, the utility model provides a kind of safety pin single shear device, and it comprises a seat mechanism, press cutter mechanism and bearing shear sleeve; Described seat mechanism comprises main carrying and shears bearing and guide type shoe; Described press cutter mechanism comprises press cutter shear sleeve and shear knife;
Bearing is sheared in described main carrying and guide type shoe is connected and fixed by bolt; It is the firm bearing of a thickening that bearing is sheared in this master's carrying, can carry single shear and be essential to the pressure of the value energetically-curved combining ability of its loading; This guide type shoe is a variable cross section bearing, and the guiding shear knife applies shearing force in perpendicular displacement;
Described press cutter shear sleeve is arranged on the shear knife lower end; Described bearing shear sleeve is arranged on the upper end that bearing is sheared in main carrying; The shearing end end face of this bearing shear sleeve and press cutter shear sleeve is to be provided with 4 ° inclined-plane, eliminates the friction of bearing shear sleeve, press cutter shear sleeve and safety pin shear surface;
Described bearing is sheared the outfit that is with plurality of specifications, use with current safety pin size to be measured and be complementary, its two ends adopt different tolerances to control its aperture, two ends, the internal orifice dimension of the shearing end of close shear knife is controlled by tolerance H6, with the bearing shear sleeve near the endoporus of the shearing end of shear knife and the clearance control between the safety pin in the less scope that compares, guarantee the test accuracy of single shear; And the outer end of inserting the bearing shear sleeve at safety pin, internal aperture is controlled by tolerance D8, bearing shear sleeve outer end endoporus that safety pin is inserted and the clearance control between the safety pin are convenient to the smooth insertion of large scale safety pin in relatively big scope, improve experiment work efficient;
Further, the utility model also comprises regulates cushion block and adjusting washer (disk), and this adjusting cushion block is arranged on the guide type shoe, and this adjusting washer (disk) is arranged on main carrying and shears between bearing and the guide type shoe; Can regulate the main distance of shearing between bearing and the guide type shoe of carrying by regulating described adjusting cushion block and adjusting washer (disk), the gap between an elimination seat mechanism and the shear knife helps the correct operation of shear knife to shearing the influence of loading force.
The safety pin single shear device that the utility model provides, its job step is as follows:
Safety pin is inserted the bearing shear sleeve supporting with it, end under it will be sheared is placed on the press cutter shear sleeve, shear knife is directly exerted pressure, this shear knife is under the effect of shear pressure, shear bearing and guide type shoe generation relative displacement with main carrying, safety pin is applied single shear shear force, increase power gradually, until shear pin breakage, " power-displacement " relation curve that simultaneously can quantitative measurement safety pin shear test, the Fracture Force of the safety pin that obtains being sheared and shear strength.
The safety pin single shear device that the utility model provides has following advantage:
(1) can realize single shear testing to the large scale safety pin, the diameter of this large scale safety pin can be more than 25mm.
(2) but the quantitative measurement shearing strength: this safety pin single shear device can be used with Material Testing Machine, and " power-displacement " relation curve of quantitative measurement safety pin is measured the Breaking load and the shearing strength of shear pin.The parameter of these mensuration is judged the foundation that can whether the safety pin spare part be qualified, check and accept except can be used as, also can obtain surveying the gap of shear resistance and regulation shear resistance upper and lower limit, as the foundation of safety pin spare part reasonably select material and production technology and Continual Improvement.
(3) simple structure, extensibility is good: this safety pin single shear device construction is simple, can be equipped with the plurality of specifications of various sizes safety pin coupling and shear supporting sleeve, can measure the shearing strength of various different size safety pins, confirm whether its performance satisfies request for utilization, and as the foundation of safety pin spare part reasonably select material and production technology and Continual Improvement.
Description of drawings
The Facad structure synoptic diagram of the safety pin single shear device that Fig. 1 provides for the utility model;
The structure synoptic diagram of the safety pin single shear device that Fig. 2 provides for the utility model.
Embodiment
Following according to Fig. 1 and Fig. 2, a kind of preferred forms of the present utility model is described.
As shown in Figure 1, the Facad structure synoptic diagram of the safety pin single shear device that provides for the utility model, it comprises a seat mechanism, press cutter mechanism and bearing shear sleeve 101; Described seat mechanism comprises main carrying and shears bearing 102 and guide type shoe 103; Described press cutter mechanism comprises press cutter shear sleeve 104 and shear knife 105;
Bearing 102 is sheared in described main carrying and guide type shoe 103 is connected and fixed by bolt 106; It is the firm bearings of a thickening that bearing 102 is sheared in this master's carrying, can carry single shear and be essential to the pressure of the value energetically-curved combining ability of its loading; This guide type shoe 103 is variable cross section bearings, and guiding shear knife 105 applies shearing force in perpendicular displacement;
Described press cutter shear sleeve 104 is arranged on shear knife 105 lower ends; Described bearing shear sleeve 101 is arranged on the upper end that bearing 102 is sheared in main carrying; This bearing shear sleeve 101 is to be provided with 4 ° inclined-plane with the shearing end end face of press cutter shear sleeve 104, the friction between the shear surface of elimination bearing shear sleeve 101, press cutter shear sleeve 104 and safety pin 1;
Described bearing shear sleeve 101 has the outfit of plurality of specifications, use the size with current safety pin 1 to be measured to be complementary, its two ends adopt different tolerances to control its aperture, two ends, and the internal orifice dimension of the shearing end of close shear knife 105 is by tolerance H6 control, to guarantee the test accuracy of single shear.For example, diameter of safety pin is Φ 70g6, and promptly Φ 70
-0.019 -0.010, process qualified actual diameter between Φ 69.981mm～Φ 69.990mm, the shear sleeve diameter of bore of the shearing end of close shear knife is Φ 70H6, promptly Φ 70
+ 0.000 + 0.019Process qualified actual diameter of bore between Φ 70.000mm～Φ 70.019mm, that is: with the endoporus of shear sleeve shearing end and the clearance control between the safety pin between 0.010mm～0.038mm, guarantee the test accuracy of single shear with the less gap that compares.And in the outer end that safety pin 1 inserts shear sleeve, internal aperture is by tolerance D8 control, and being convenient to large scale safety pin 1 can insert smoothly.For example, diameter of safety pin is Φ 70g6, and promptly Φ 70
-0.019 -0.010, process qualified actual diameter between Φ 69.981mm～Φ 69.990mm, the shear sleeve outer end diameter of bore that safety pin inserts is Φ 70D8, promptly Φ 70
+ 0.120 + 0.174Process qualified actual diameter of bore between Φ 70.120mm～Φ 70.174mm, that is: shear sleeve outer end endoporus that safety pin is inserted and the clearance control between the safety pin are between 0.130mm～0.193mm, be convenient to the smooth insertion of large scale safety pin with relatively big gap, improve experiment work efficient.
Further, the utility model also comprises regulates cushion block 107 and adjusting washer (disk) 108 (as shown in Figure 2), and this adjusting cushion block 107 is arranged on the guide type shoe 103, and this adjusting washer (disk) 108 is arranged on main carrying and shears between bearing 102 and the guide type shoe 103; Can regulate the main distance of shearing between bearing 102 and the guide type shoe 103 of carrying by regulating described adjusting cushion block 107 and adjusting washer (disk) 108, gap between an elimination seat mechanism and the shear knife 105 helps the correct operation of shear knife 105 to shearing the influence of loading force.
The safety pin single shear device that the utility model provides, its job step is as follows:
Safety pin 1 is inserted the bearing shear sleeve 101 supporting with it, end under it will be sheared is placed on the press cutter shear sleeve 104, shear knife 105 is directly exerted pressure, this shear knife 105 is under the effect of shear pressure, shear bearing 102 and guide type shoe 103 generation relative displacements with main carrying, safety pin 1 is applied single shear shear force, increase power gradually, until safety pin 1 fracture, " power-displacement " relation curve that simultaneously can quantitative measurement safety pin shear test, the Fracture Force and the shear strength of the safety pin 1 that obtains being sheared.
The safety pin single shear device that the utility model provides has following advantage:
(1) can realize single shear testing to the large scale safety pin, the diameter of this large scale safety pin can be more than 25mm.
(2) but the quantitative measurement shearing strength: this safety pin single shear device can be used with Material Testing Machine, and " power-displacement " relation curve of quantitative measurement safety pin is measured the Breaking load and the shearing strength of shear pin.The parameter of these mensuration is judged the foundation that can whether the safety pin spare part be qualified, check and accept except can be used as, also can obtain surveying the gap of shear resistance and regulation shear resistance upper and lower limit, as the foundation of safety pin spare part reasonably select material and production technology and Continual Improvement.
(3) simple structure, extensibility is good: this safety pin single shear device construction is simple, can be equipped with the plurality of specifications of various sizes safety pin coupling and shear supporting sleeve, can measure the shearing strength of various different size safety pins, confirm whether its performance satisfies request for utilization, and as the foundation of safety pin spare part reasonably select material and production technology and Continual Improvement.
Claims (6)
1. safety pin single shear device, it comprises it and comprises a seat mechanism, press cutter mechanism and bearing shear sleeve (101); Be characterised in that described seat mechanism comprises main carrying and shear bearing (102) and guide type shoe (103); Described press cutter mechanism comprises press cutter shear sleeve (104) and shear knife (105);
Bearing (102) is sheared in described main carrying and guide type shoe (103) is connected and fixed by bolt (106);
Described press cutter shear sleeve (104) is arranged on shear knife (105) lower end;
Described bearing shear sleeve (101) is arranged on the upper end that bearing (102) is sheared in main carrying.
2. safety pin single shear device as claimed in claim 1 is characterized in that, it is the firm bearing of a thickening that bearing (102) is sheared in described main carrying, can carry single shear and be essential to the pressure of the value energetically-curved combining ability of its loading.
3. safety pin single shear device as claimed in claim 1 is characterized in that, described guide type shoe (103) is a variable cross section bearing, and guiding shear knife (105) applies shearing force in perpendicular displacement.
4. safety pin single shear device as claimed in claim 1, it is characterized in that, the shearing end end face that described bearing is sheared (101) and press cutter shear sleeve (104) is to be provided with 4 ° inclined-plane, the friction between the shear surface of elimination bearing shear sleeve (101), press cutter shear sleeve (104) and safety pin 1.
5. safety pin single shear device as claimed in claim 1, it is characterized in that, described bearing shear sleeve (101) is controlled by tolerance H6 near the internal orifice dimension of the shearing end of shear knife (105), and the endoporus of the shearing end of the close shear knife (105) of bearing shear sleeve (101) and the clearance control between the safety pin (1) are in more among a small circle; Described bearing shear sleeve (101) is controlled by tolerance D8 at the internal orifice dimension of the outer end that safety pin (1) inserts, and bearing shear sleeve (101) outer end endoporus and the gap between the safety pin (1) that safety pin (1) inserts are bigger.
6. safety pin single shear device as claimed in claim 1 is characterized in that, also comprises to regulate cushion block (107) and adjusting washer (disk) (108);
Described adjusting cushion block (107) is arranged on the guide type shoe (103);
Described adjusting washer (disk) (108) is arranged on main carrying and shears between bearing (102) and the guide type shoe (103);
Regulate cushion block (107) and adjusting washer (disk) (108), regulate the distance between main carrying shearing bearing (102) and the guide type shoe (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114946 CN2760543Y (en) | 2004-12-28 | 2004-12-28 | Single face shearing device for safety pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114946 CN2760543Y (en) | 2004-12-28 | 2004-12-28 | Single face shearing device for safety pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760543Y true CN2760543Y (en) | 2006-02-22 |
Family
ID=36082746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114946 Expired - Fee Related CN2760543Y (en) | 2004-12-28 | 2004-12-28 | Single face shearing device for safety pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760543Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158062A (en) * | 2015-09-11 | 2015-12-16 | 河南航天精工制造有限公司 | Pin shearing test auxiliary device and testing tool using same |
| CN107664607A (en) * | 2017-09-21 | 2018-02-06 | 贵州航天新力铸锻有限责任公司 | Round metal pin shearing test simple frock |
| CN108387459A (en) * | 2018-01-26 | 2018-08-10 | 中国矿业大学 | A kind of anchor shaft anchor cable anti-shear performance test device and test method |
-
2004
- 2004-12-28 CN CN 200420114946 patent/CN2760543Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158062A (en) * | 2015-09-11 | 2015-12-16 | 河南航天精工制造有限公司 | Pin shearing test auxiliary device and testing tool using same |
| CN105158062B (en) * | 2015-09-11 | 2017-11-10 | 河南航天精工制造有限公司 | A kind of pin shearing test servicing unit and the test tool using the servicing unit |
| CN107664607A (en) * | 2017-09-21 | 2018-02-06 | 贵州航天新力铸锻有限责任公司 | Round metal pin shearing test simple frock |
| CN108387459A (en) * | 2018-01-26 | 2018-08-10 | 中国矿业大学 | A kind of anchor shaft anchor cable anti-shear performance test device and test method |
| CN108387459B (en) * | 2018-01-26 | 2020-03-27 | 中国矿业大学 | Device and method for testing anti-shearing performance of anchor rod and anchor cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20060222 Termination date: 20131228 |