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Accurate force measurement module used for conveniently replacing sensor under bridge member stress working condition

A force sensor and sensor technology, applied in the direction of the force sensor, bridge parts, bridges, etc. in the holes of the force-bearing structure, can solve the problems of affecting traffic, high labor intensity, inconvenient replacement, etc., to reduce the contact area, disassemble And the effect of convenient installation process and convenient processing

Pending Publication Date: 2019-11-05
CHENGDU XINTU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the inconvenient replacement of existing contact sensors, which will affect traffic, low efficiency, and high labor intensity, it is urgent to develop a new structure to improve the convenience of contact sensor replacement.

Method used

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  • Accurate force measurement module used for conveniently replacing sensor under bridge member stress working condition
  • Accurate force measurement module used for conveniently replacing sensor under bridge member stress working condition
  • Accurate force measurement module used for conveniently replacing sensor under bridge member stress working condition

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Experimental program
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Effect test

Embodiment 1

[0039] Such as Figure 1-Figure 3 As shown, in this embodiment, an accurate force measurement module for convenient replacement of sensors under the stress condition of bridge components is provided, including a pressure-bearing bottom basin 1 and a rubber pad embedded in the pressure-bearing bottom basin 1 The block 3 also includes a middle steel plate 2, which is carried above the rubber pad 3, and a top beam is carried above the middle steel plate 2, and the middle steel plate 2 is used to transmit the pressure generated by the top beam.

[0040] The side wall of the pressure-bearing bottom basin 1 is provided with a stepped hole along its radial direction. Of course, the stepped hole can also be arranged on the top of the middle steel plate 2 or on the bottom of the support chassis 1. The stepped hole It is composed of a small-diameter hole 6 and a large-diameter hole 5. A stepped surface 4 is formed between the small-diameter hole 6 and the large-diameter hole 5. The step...

Embodiment 2

[0048] Such as Figure 4 , Figure 5 As shown, on the basis of Embodiment 1, another accurate force-measuring module for convenient replacement of sensors under the stress condition of bridge components is provided, and its stepped hole is set as a second-order stepped hole, and the second-order stepped hole is composed of The stepped small hole 12 and the stepped large hole are formed, the stepped small hole 12 communicates with the inner cavity of the pressure-bearing bottom basin 1, the stepped large hole communicates with the outer side wall of the described pressure-bearing bottom basin 1, and the stepped large hole is installed There is an inner sleeve 11. Preferably, the inner sleeve 11 and the inner wall of the stepped large hole can be fixedly installed by threaded connection.

[0049] The force transmission plunger 7 is set as a stepped structure, the small end of the force transmission plunger 7 is movably assembled in the stepped small hole 12 and is tightly press...

Embodiment 3

[0052] Such as Figure 6 As shown, on the basis of Embodiment 1, another accurate force-measuring module for conveniently replacing the sensor under the stress condition of the bridge member is provided, and the stepped hole is set as a counterbore, and the counterbore is formed by the counterbore The small hole 14 and the large hole of the counterbore are formed, and the small hole of the countersunk head is set as a tapered hole; The walls communicate with each other and an inner sleeve is installed inside; the small end of the force transmission plunger 7 is matched with the small hole 14 of the counterbore and the end is pressed tightly against the rubber pad, and the large end of the force transmission plunger 7 The end matches the large hole of the counterbore and the end of the end is tightly pressed against the sensing surface of the load cell 8. Preferably, the inner sleeve 11 and the inner wall of the large hole of the counterbore can be fixedly installed by threaded...

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Abstract

The invention discloses an accurate force measurement module used for conveniently replacing a sensor under a bridge member stress working condition, and belongs to the technical field of building orbridge engineering members. The module comprises a pressure bearing bottom basin and a rubber cushion block embedded in the pressure bearing bottom basin, wherein the side wall of the pressure bearingbottom basin is internally provided with stepped bores along a radial direction of the pressure bearing bottom basin, the stepped bores at least comprise a small-diameter bore and a large-diameter bore, a stepped surface is formed between the small-diameter bore and the large-diameter bore, a force transfer plunger is movably assembled in the large-diameter bore, and a force measurement sensor isin threaded connection in the small-diameter bore; and one end of the force transfer plunger is abutted against the rubber cushion block; and the other end of the force transfer plunger is abutted against the induction surface of the force measurement sensor, and a gap is left between the end part and the stepped surface. Therefore, by use of the accurate force measurement module, when the contact type sensor is replaced, a beam body does not need to be jacked, and a purpose of conveniently disassembling and replacing a contact type sensor and simultaneously easily manually operating can be realized under a situation that the bridge member is normally stressed and a traffic situation is not affected.

Description

technical field [0001] The invention belongs to the technical field of building or bridge engineering components, and in particular relates to an accurate force-measuring module used for conveniently replacing sensors under the stress working condition of bridge components. Background technique [0002] At present, the force measurement technology used for bearings mainly adopts methods such as installing pressure sensors on the side wall, oil bags in the rubber blocks to transmit pressure values, and even grating sensors. The most simple and reliable method is to drill holes in the side wall and install contact In this type of structure, the sensing surface of the contact sensor is directly in contact with the rubber pad in the basin to measure the internal compressive stress and convert it to the force of the support. [0003] In actual use, due to the limited life of the contact sensor, when it needs to be replaced regularly, because the rubber in the support will be sque...

Claims

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Application Information

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IPC IPC(8): E01D19/04E04B1/36G01L5/00
CPCE01D19/04E04B1/36G01L5/0004
Inventor 游珏涛夏玉龙邱廷琦刘海亮黄菲刘成周亮俞海敏黄杰王润滋张松骆明成杜传知徐铫阳
Owner CHENGDU XINTU TECH
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