Friction test adjustable limiting device

A technology of limit device and limit nut, which is applied in measuring devices, mechanical devices, instruments, etc., can solve problems such as slippage, steel strand breakage, and inaccurate test data.

Inactive Publication Date: 2013-10-30
CHINA NUCLEAR IND 22ND CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, when carrying out this test, the clamp position of the anchor at the passive end is controlled by a special limit plate. Since the limit size is a fixed value, it cannot satisfy the oil pressure measurement at the passive end and the anchorage of the steel beam at the same time. The location requirements of the anchoring clips are not met, which has repeatedly caused inaccurate friction test data or steel strands break and slip when the steel beam is anchored.

Method used

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  • Friction test adjustable limiting device
  • Friction test adjustable limiting device
  • Friction test adjustable limiting device

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Embodiment Construction

[0011] The structure of the present invention is as figure 1 -3 shows: an adjustable limit device for friction test, including a load-bearing sleeve 1, a pressure regulating plate 3 installed in the load-bearing sleeve 1, a plurality of through holes 11 are distributed on the pressure regulating plate 3, and the pressure regulating plate 3 The plate 3 is connected with the lug plate 5 through a screw rod, and a positioning nut 4 and a limit nut 2 are arranged on the screw rod. A guide screw 6 is provided on the ear plate 5 , and a fixing bolt 7 is provided on the guide screw 6 .

[0012] The working principle of the present invention is as follows:

[0013] When testing the tension and oil pressure of the passive end: After installing the working anchor clip 8 at the passive end of the steel beam friction test, install the lug plate 5 of this device to the anchor block 9, and all the steel strands 10 pass through the limit pressure regulating plate 3 The corresponding throug...

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Abstract

The invention discloses a friction test adjustable limiting device which comprises a bearing sleeve, wherein a pressure adjustment plate is arranged in the bearing sleeve; a plurality of through holes are formed in the pressure adjustment plate; the pressure adjustment plate is connected with a lug plate through screws; positioning nuts and limiting nuts are arranged on the screws; guide screws are arranged on the lug plate; fixing bolts are arranged on the guide screws. According to the friction test adjustable limiting device, due to adoption of a structure that the pressure adjustment plate is connected with the lug plate through the screws, the pressure adjustment plate is movable; in the friction test, a position requirement for an anchoring fixed sheet during passive end oil pressure measurement and steel bundle anchoring can be met; the problem of inaccurate friction test data or fracture and slippage of a steel stranded wire during the steel bundle anchoring is solved; tension of a test steel bundle can be normally transmitted to a measured part; after the test is finished, the steel bundle can be reliably anchored.

Description

technical field [0001] The invention relates to a device for steel beam friction test. Background technique [0002] During the steel beam friction test, the oil pressure of the active end is increased step by step, and the tension of the jack is transmitted to the passive end jack through the tool anchor and the steel beam. After each level of tension is stable, the tension of the steel beam needs to be measured The long value and the corresponding oil pressure value of the passive end jack need to be anchored to the steel beam after the test is completed. In the prior art, when carrying out this test, the clamp position of the anchor at the passive end is controlled by a special limit plate. Since the limit size is a fixed value, it cannot satisfy the oil pressure measurement at the passive end and the anchorage of the steel beam at the same time. The requirements for the position of the anchoring clips have repeatedly caused inaccurate friction test data or steel strands...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00G01N19/02
Inventor 胡胜光梅刚杨倍铸
Owner CHINA NUCLEAR IND 22ND CONSTR
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