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Protective device of small load sensor in series structure

A technology of load sensor and protection device, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as damage to small load sensors and large loads, and achieve the effects of low cost, accurate and reliable positioning, and small axis distance.

Inactive Publication Date: 2012-05-23
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, two large and small load sensors are connected in series. Due to the continuity of the force loading, it is not allowed to disassemble the small load sensor during the test. The load in the later stage of the test is relatively large, which greatly exceeds the range of the small load sensor, which will seriously damage the small load sensor.

Method used

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  • Protective device of small load sensor in series structure
  • Protective device of small load sensor in series structure
  • Protective device of small load sensor in series structure

Examples

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Embodiment Construction

[0015] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0016] as attached figure 1 , 2 , 3, and 4, when assembling, first pass the DC geared motor 28, the left motor support plate 14, the right motor support plate 18, the bearing with seat 25, the support rod 2, and the bearing seat 3 through the M5 socket head cap screws and the panel 16 fasten the connection, then place the thrust ball needle roller bearing 4, the large bevel gear 6, the rotating bushing 5 and the small bevel gear 24 on the installation position, then fasten the sensor 9 on the support rod 2, and connect the small bevel gear The shaft sleeve 22 is fastened on the sensor 9, and then the inner sleeve 10 is placed on the installation position for fastening, and the sleeve 11 with a guide key and the outer sleeve 8 with a guide groove are added, and finally the small sleeve 21 is supported. Assembled on...

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Abstract

The invention provides a protective device of small load sensor in series structure, belonging to the technical field of mechanical engineering measurement, relating to series test of two axial load sensors in soil engineering high pressure three-axis test, in particular to a device for protecting small load sensor by virtue of special mechanical structure. The invention is characterized in that the device is composed of a direct current gear motor, a small cone gear, a big cone gear, an outer sleeve provided with a guide groove, an inner sleeve, a rotating sleeve and a small supporting shaftsleeve. A group of sleeves which have guiding function and are provided with trapezoidal thread are taken as main body, free promotion and demotion in the vertical direction is realized under the condition that the central loading shaft is not influenced, and maximum load required by test can be loaded. The invention has the effects and benefits that the device has smart structure, mounting and debugging are convenient, cost is low, stability and operational flexibility are high, and protection function can be realized by utilizing self-locking function under the condition that the motor is in power failure, thus realizing insulation blocking of small load sensor.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering testing, and relates to a series test of two axially large and small load sensors in a geotechnical high-voltage triaxial test, in particular to a device for protecting a small load sensor by means of a special mechanical structure. Background technique [0002] Geotechnical triaxial test is a kind of geotechnical test, and it is also one of the most important indoor geotechnical test methods, and it is often tested with the help of a triaxial tester. At this stage, in order to meet the needs of analyzing various complex soil structures, the triaxial tester is developing towards the direction of the high-pressure triaxial tester. The load sensor is an indispensable experimental measurement device for high-voltage triaxial testing, and its measurement accuracy has a great influence on the test results. Therefore, the range and measurement accuracy of the sensor have become an importa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/02
Inventor 邵龙潭桑勇冯忠帅王莉莉
Owner DALIAN UNIV OF TECH
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