CN104406840A - Tester jib coaxiality adjusting apparatus - Google Patents
Tester jib coaxiality adjusting apparatus Download PDFInfo
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- CN104406840A CN104406840A CN201410611759.3A CN201410611759A CN104406840A CN 104406840 A CN104406840 A CN 104406840A CN 201410611759 A CN201410611759 A CN 201410611759A CN 104406840 A CN104406840 A CN 104406840A
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- shaft sleeve
- cavity
- adjustment bolt
- testing machine
- space bar
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Abstract
A tester jib coaxiality adjusting apparatus comprises an upper shaft sleeve, a lower shaft sleeve and a cylindrical base; the center of the top of the base and the center of the bottom of the base are respectively provided with an upper concave cavity and a lower concave cavity; a separation plate is arranged between the upper concave cavity and the lower concave cavity, upper surface of the separation plate is a spherical surface with the upwards-arched center, and the lower surface of the separation plate is a plane; the upper shaft sleeve is disposed in the upper concave cavity, and the bottom surface of the upper shaft sleeve is a spherical surface attached with the upper surface of the separation plate; the lower shaft sleeve is disposed in the lower concave cavity, and the top surface of the lower shaft sleeve is a plane attached to the lower surface of the separation plate; the center of the separation plate is provided with a center through hole communicating an upper shaft sleeve inner hole and a lower shaft sleeve inner hole; and a plurality of upper-layer adjusting bolts and a plurality of lower-layer adjusting bolts penetrate the side wall of the base along a radial direction. The beneficial effects comprise that the tester jib coaxiality adjusting apparatus is convenient and rapid in adjusting, accurate and reliable, is capable of reaching the coaxiality demanded by a rule, and guarantees the reliability of experiment results.
Description
Technical field
The present invention relates to a kind of grip of testing machine axiality adjusting device.
Background technology
Draw at present, press testing machine to be mainly used in the mechanical property test of material.Draw, press the upper and lower fixture right alignment index of testing machine to be the important parameter affecting material fatigue life, JJG139-1999 " pulling force, pressure and universal testing machine ", JJG157-2008 " nonmetal pulling force, pressure and universal testing machine ", JJG475-2008 " electronic type universal testing machine " and JJG1063-2010 " electro-hydraulic servo universal testing machine " vertification regulation all propose technical requirement and detection method to the right alignment of testing machine.Due to the impact of the many factors such as design, processing, installation, use, inevitably there is coaxiality error in testing machine.The existence of coaxiality error, bears normal stress when making material do tension test and produces bending stress simultaneously, thus have influence on the accuracy of test findings.
Minimum in order to ensure the be put to the test impact of machine right alignment of tension test data, by improving requirement on machining accuracy when testing machine is manufactured, take the method such as articulated structure or mounting and adjusting, reduce the upper and lower fixture malalignment of testing machine, reach the right alignment meeting regulatory requirements, ensure experimental result reliability.But these present Measures compare are loaded down with trivial details, poor reliability.
Summary of the invention
For solving above technical deficiency, the invention provides a kind of grip of testing machine axiality adjusting device, it can facilitate the upper and lower fixture right alignment of Adjustment Tests machine accurately, reaches the right alignment meeting regulatory requirements, ensures experimental result reliability.
The present invention is achieved by the following measures:
A kind of grip of testing machine axiality adjusting device of the present invention, comprise Upper shaft sleeve, Lower shaft sleeve and
Cylindrical base, described pedestal top center and bottom centre have cavity and lower cavity, space bar is provided with between described upper cavity and lower cavity, the sphere upwards swelled centered by described space bar upper surface, space bar lower surface is plane, described Upper shaft sleeve is placed in cavity, and the bottom surface of Upper shaft sleeve is the sphere fitted with space bar upper surface, described Lower shaft sleeve is placed in lower cavity, and the end face of Lower shaft sleeve is the plane fitted with space bar lower surface, described space bar center is provided with the central through hole being communicated with Upper shaft sleeve endoporus and Lower shaft sleeve endoporus, on described pedestal sidewall, radial direction is installed with some upper stratas adjustment bolt and some lower floors adjustment bolt, some upper stratas adjustment bolt end to penetrate in cavity and clamps Upper shaft sleeve, some lower floors adjustment bolt end to penetrate in lower cavity and clamps Lower shaft sleeve.
Above-mentioned upper strata adjustment bolt and lower floor's adjustment bolt all adopt four, and four every layer adjustment bolts are arranged along pedestal even circumferential.
Above-mentioned Upper shaft sleeve and the lateral wall of Lower shaft sleeve are provided with the clamping plane that offset vertical with adjusting bolt end on four direction.
Above-mentioned Upper shaft sleeve endoporus is identical with the diameter of Lower shaft sleeve endoporus, and the diameter of central through hole is greater than the diameter of Upper shaft sleeve endoporus or Lower shaft sleeve endoporus.
Said base sidewall is provided with the counterbore penetrating adjustment bolt.
The invention has the beneficial effects as follows: the present invention can regulate upper grip axis and the lower chuck dead in line of testing machine, fast easy to adjust, accurately and reliably, can reach the right alignment meeting regulatory requirements, ensure experimental result reliability.
Accompanying drawing explanation
Fig. 1 is longitudinal profile structural representation of the present invention.
Fig. 2 is horizontal section structural representation of the present invention.
Wherein: 1 pedestal, 2 Upper shaft sleeves, 3 Lower shaft sleeves, lower clamp coupling shaft on 4,5 upper strata adjustment bolts, 6 lower floor's adjustment bolts, 7 median septums.
Embodiment
Below in conjunction with accompanying drawing, further detailed description is done to the present invention:
As shown in Figure 1, 2, a kind of grip of testing machine axiality adjusting device of the present invention, comprises axle
Cover, Lower shaft sleeve 3 and cylindrical base 1, pedestal 1 top center and bottom centre have cavity and lower cavity, space bar is provided with between upper cavity and lower cavity, the sphere upwards swelled centered by space bar upper surface, space bar lower surface is plane, Upper shaft sleeve 2 is placed in cavity, and the bottom surface of Upper shaft sleeve 2 is the sphere fitted with space bar upper surface, Lower shaft sleeve 3 is placed in lower cavity, and the end face of Lower shaft sleeve 3 is the plane fitted with space bar lower surface, space bar center is provided with the central through hole being communicated with Upper shaft sleeve 2 endoporus and Lower shaft sleeve 3 endoporus, on pedestal 1 sidewall, radial direction is installed with some upper stratas adjustment bolt 5 and some lower floors adjustment bolt 6, some upper stratas adjustment bolt 5 end to penetrate in cavity and clamps Upper shaft sleeve 2, some lower floors adjustment bolt 6 end to penetrate in lower cavity and clamps Lower shaft sleeve 3.
In order to can from the adjustment of all around four direction, upper strata adjustment bolt 5 and lower floor's adjustment bolt 6 all adopt four, and four every layer adjust bolts and arrange along pedestal 1 even circumferential.Upper shaft sleeve 2 and the lateral wall of Lower shaft sleeve 3 are provided with the clamping plane that offset vertical with adjusting bolt end on four direction, arrange clamping plane and can prevent from, during adjustment bolt clip mandrel cover, slippage occurs, improve the stability of clamping.Upper shaft sleeve 2 endoporus is identical with the diameter of Lower shaft sleeve 3 endoporus, and the diameter of central through hole is greater than the diameter of Upper shaft sleeve 2 endoporus or Lower shaft sleeve 3 endoporus, and the concrete size of central through hole needs to determine according to actual conditions.Pedestal 1 sidewall is provided with the counterbore penetrating adjustment bolt.
This regulator principle of work: during adjustment, by upper lower clamp coupling shaft 4 through Upper shaft sleeve 2, central through hole and Lower shaft sleeve 3, when the upper axis of lower clamp coupling shaft 4 and the axis of upper end-fixture exist drift angle, then regulate the upper strata adjustment bolt 5 of four direction all around, promote the spheric motion of bottom sphere along median septum 7 upper surface of Upper shaft sleeve 2, median septum 7 upper surface of Upper shaft sleeve 2 in pedestal 1 is all around moved, the upper lower clamp coupling shaft 4 of Upper shaft sleeve 2 and then promotion jockey does corresponding deflection, thus reaches the adjustment of axis drift angle.
Offset when the axis of upper lower clamp coupling shaft 4 and lower end holder axis exist, then regulate lower floor's adjustment bolt 6 of four direction all around, promote Lower shaft sleeve 3 top planes along with the plane motion of median septum 7 lower surface, move left and right after the median septum 7 of Lower shaft sleeve 3 in pedestal 1 is gone forward, Lower shaft sleeve 3 and then the upper lower clamp coupling shaft 4 of promotion do corresponding translation, thus reach the adjustment of lower clamp coupling shaft 4 journal offset.Realize the upper and lower fixture of testing machine and there is drift angle and the adjustment of skew out-of-alignment, reach the right alignment meeting regulatory requirements.
The above is only the preferred implementation of this patent; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the art of this patent principle; can also make some improvement and replacement, these improve and replace the protection domain that also should be considered as this patent.
Claims (5)
1. a grip of testing machine axiality adjusting device, is characterized in that: comprise Upper shaft sleeve, Lower shaft sleeve and
Cylindrical base, described pedestal top center and bottom centre have cavity and lower cavity, space bar is provided with between described upper cavity and lower cavity, the sphere upwards swelled centered by described space bar upper surface, space bar lower surface is plane, described Upper shaft sleeve is placed in cavity, and the bottom surface of Upper shaft sleeve is the sphere fitted with space bar upper surface, described Lower shaft sleeve is placed in lower cavity, and the end face of Lower shaft sleeve is the plane fitted with space bar lower surface, described space bar center is provided with the central through hole being communicated with Upper shaft sleeve endoporus and Lower shaft sleeve endoporus, on described pedestal sidewall, radial direction is installed with some upper stratas adjustment bolt and some lower floors adjustment bolt, some upper stratas adjustment bolt end to penetrate in cavity and clamps Upper shaft sleeve, some lower floors adjustment bolt end to penetrate in lower cavity and clamps Lower shaft sleeve.
2. grip of testing machine axiality adjusting device according to claim 1, is characterized in that: on described
Layer adjustment bolt and lower floor's adjustment bolt all adopt four, and four every layer adjustment bolts are arranged along pedestal even circumferential.
3. grip of testing machine axiality adjusting device according to claim 1, is characterized in that: on described
Axle sleeve and the lateral wall of Lower shaft sleeve are provided with the clamping plane that offset vertical with adjusting bolt end on four direction.
4. grip of testing machine axiality adjusting device according to claim 1, is characterized in that: described Upper shaft sleeve endoporus is identical with the diameter of Lower shaft sleeve endoporus, and the diameter of central through hole is greater than the diameter of Upper shaft sleeve endoporus or Lower shaft sleeve endoporus.
5. grip of testing machine axiality adjusting device according to claim 1, is characterized in that: described pedestal sidewall is provided with the counterbore penetrating adjustment bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611759.3A CN104406840B (en) | 2014-11-04 | 2014-11-04 | Tester jib coaxiality adjusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410611759.3A CN104406840B (en) | 2014-11-04 | 2014-11-04 | Tester jib coaxiality adjusting apparatus |
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| Publication Number | Publication Date |
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| CN104406840A true CN104406840A (en) | 2015-03-11 |
| CN104406840B CN104406840B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410611759.3A Active CN104406840B (en) | 2014-11-04 | 2014-11-04 | Tester jib coaxiality adjusting apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289731A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of assay device for cementing tool and test method thereof |
| CN108562511A (en) * | 2018-02-01 | 2018-09-21 | 上海百若试验仪器有限公司 | A kind of concentricity adjusting apparatus of fatigue tester |
| CN110450064A (en) * | 2019-07-19 | 2019-11-15 | 北京航空航天大学 | A kind of axiality adjusting device and method for rotation axis seal leakage measurement |
| CN110726637A (en) * | 2019-12-02 | 2020-01-24 | 吉林大学 | Centering adjustment device and adjustment method |
| CN110836831A (en) * | 2019-12-02 | 2020-02-25 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
| CN111006961A (en) * | 2019-09-28 | 2020-04-14 | 力试（上海）科学仪器有限公司 | Accurate adjusting device of testing machine axiality and testing machine |
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| JP2011220830A (en) * | 2010-04-09 | 2011-11-04 | Kurashiki Kako Co Ltd | Jig for testing characteristics of rubber bush |
| CN104101532A (en) * | 2013-04-09 | 2014-10-15 | 中国科学院金属研究所 | Fixture for axial push-pull fatigue testing of metal thin-walled tube sample in high-temperature and high-pressure water |
| CN204142563U (en) * | 2014-11-04 | 2015-02-04 | 济南东测试验机技术有限公司 | Grip of testing machine axiality adjusting device |
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2014
- 2014-11-04 CN CN201410611759.3A patent/CN104406840B/en active Active
Patent Citations (3)
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| JP2011220830A (en) * | 2010-04-09 | 2011-11-04 | Kurashiki Kako Co Ltd | Jig for testing characteristics of rubber bush |
| CN104101532A (en) * | 2013-04-09 | 2014-10-15 | 中国科学院金属研究所 | Fixture for axial push-pull fatigue testing of metal thin-walled tube sample in high-temperature and high-pressure water |
| CN204142563U (en) * | 2014-11-04 | 2015-02-04 | 济南东测试验机技术有限公司 | Grip of testing machine axiality adjusting device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289731A (en) * | 2015-05-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of assay device for cementing tool and test method thereof |
| CN108562511A (en) * | 2018-02-01 | 2018-09-21 | 上海百若试验仪器有限公司 | A kind of concentricity adjusting apparatus of fatigue tester |
| CN110450064A (en) * | 2019-07-19 | 2019-11-15 | 北京航空航天大学 | A kind of axiality adjusting device and method for rotation axis seal leakage measurement |
| CN111006961A (en) * | 2019-09-28 | 2020-04-14 | 力试（上海）科学仪器有限公司 | Accurate adjusting device of testing machine axiality and testing machine |
| CN110726637A (en) * | 2019-12-02 | 2020-01-24 | 吉林大学 | Centering adjustment device and adjustment method |
| CN110836831A (en) * | 2019-12-02 | 2020-02-25 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
| CN110726637B (en) * | 2019-12-02 | 2024-06-04 | 吉林大学 | Centering adjustment device and centering adjustment method |
| CN110836831B (en) * | 2019-12-02 | 2024-06-04 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104406840B (en) | 2017-01-18 |
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