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Length measuring device and length measuring oil cylinder

A length measuring device and length measuring technology, applied in measuring devices, mechanical measuring devices, electrical devices, etc., can solve the problems of occupying the internal space of the equipment used, large measuring distance, high cost, etc., and achieve small space occupation, small volume, low cost effect

Inactive Publication Date: 2018-06-15
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The prior art has the following defects: (1) when the measurement distance is large, the volume is relatively large
(2) When the measurement distance is large, the cost is high
(3) Occupy the internal space of the equipment used, such as the magnetostrictive displacement sensor

Method used

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  • Length measuring device and length measuring oil cylinder
  • Length measuring device and length measuring oil cylinder
  • Length measuring device and length measuring oil cylinder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like figure 1 Shown, a kind of length measuring device comprises fixed pulley block 61, movable pulley block 62, positioning device 63, length measuring rope 5, piezoelectric material 641, spring 644, voltage amplifying circuit, controller; The pulley block 62 and the fixed pulley block 61 form a pulley block structure, the fixed pulley block is fixed, the movable pulley block moves back and forth along the measurement direction, and a positioning device 63 is set on the movable pulley block side (relative to the direction of the fixed pulley block) to limit the displacement of the movable pulley block. Sleeve I 642 is fixed on the fixed pulley block, and sleeve II 643 is fixed on the movable pulley block. Sleeve II 643 slides within sleeve I 642 . A piezoelectric material 641 is placed inside the sleeve 1. The spring 644 is arranged in the sleeve I and the sleeve II, one end is connected to the piezoelectric material 641 , and the other end is connected to the movabl...

Embodiment 2

[0048] like figure 2 As shown, a length measuring device includes a fixed pulley block 61, a movable pulley block 62, a positioning device 63, a length measuring rope 5, a variable resistor 653, a spring 651, a voltage measurement circuit, and a controller; the length measuring rope is wound around the movable pulley block in turn 1. Form the pulley block structure on the fixed pulley block, the fixed pulley block is fixed, and the movable pulley block moves back and forth along the measuring direction, and the positioning device 63 is set to limit the displacement of the movable pulley block on the movable pulley block side (relative to the direction of the fixed pulley block). Sleeve I is fixed on the fixed pulley block, and sleeve II is fixed on the movable pulley block. Sleeve II 654 slides within sleeve I 652 . The spring is arranged in the sleeve I and the sleeve II, one end is connected with the fixed pulley block, and the other end is connected with the movable pulle...

Embodiment 3

[0061] like image 3 As shown, a length measuring device includes a fixed pulley block 61, a movable pulley block 62, a positioning device 63, a length measuring rope 5, a spring 661, a length measuring displacement sensor 663, and a controller;

[0062] The length-measuring rope is wound on the movable pulley block 62 and the fixed pulley block 61 in sequence to form a pulley block structure. The fixed pulley block is fixed, and the movable pulley block moves back and forth along the measuring direction. A positioning device 63 is set on the side of the movable pulley block (relative to the direction of the fixed pulley block) to limit Displacement of movable pulley block. Sleeve I 662 is fixed on the fixed pulley block, and sleeve II 664 is fixed on the movable pulley block. Sleeve II slides inside sleeve I. Spring 661 is arranged in sleeve I 662 , sleeve II 664 . The length-measuring displacement sensor 663 is connected to the movable pulley block, the fixed pulley block...

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PUM

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Abstract

The invention discloses a length measuring device and a length measuring oil cylinder. The length measuring device includes a fixed pulley set, a movable pulley set, a length measuring rope, a springand a detection device, wherein the length measuring rope is sequentially wound on the movable pulley set and the fixed pulley set to form a fixed pulley set structure, the fixed pulley set is fixed,and the movable pulley set moves back and forth in the measuring direction, the displacement of the movable pulley set is detected through the detection device, and after the measurement is finished,the spring restoring force enables the movable pulley set to be pushed to the initial position. According to the invention, the measuring distance is long, and the structure of the pulley set can change the " small measurement length " to the " large measurement length ", when a longer measuring distance is needed, one or more sets of pulley set structures can be arranged on the lower side of oneset of pulley set structures, and the length measurement requirement is met. The device is compact in structure, small in size and low in cost.

Description

technical field [0001] The invention relates to a length measuring device and a length measuring oil cylinder, belonging to the technical field of engineering machinery. Background technique [0002] Length measuring sensors are used in measurement and control systems that require real-time displacement measurement. Length measuring sensors generally include magnetostrictive sensors (Weidemann sensors), ultrasonic displacement sensors, photoelectric encoders, grating displacement sensors, magnetic grating position sensors, capacitive grating displacement sensors, etc. The magnetostrictive displacement sensor uses the principle of magnetostriction to accurately measure the position by generating a strain pulse signal through the intersection of two different magnetic fields. The photoelectric encoder displacement sensor converts the linear displacement signal into an angular signal to complete the displacement measurement. [0003] The prior art has the following defects: (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/02G01B7/02
CPCG01B5/02G01B7/02
Inventor 朱涛车少波周希韩建营
Owner XUZHOU HEAVY MASCH CO LTD
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