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Hydraulic weighing sensor

A weighing sensor and hydraulic technology, applied in the field of weighing sensors, can solve problems such as inaccurate measurement results and poor fluidity of hydraulic oil, and achieve the effects of accurate measurement results, flow promotion, and accurate measurement results

Active Publication Date: 2019-09-06
博兴兴业智能新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a hydraulic weighing sensor, which has the advantages of ensuring the volume of the hydraulic oil in the high-pressure cavity and promoting the flow of the hydraulic oil, and solves the problem of inaccurate measurement results caused by thermal expansion and contraction of the hydraulic oil. The fluidity of hydraulic oil becomes poor when it is accurate and overcooled

Method used

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see Figure 1-7 , a hydraulic load cell, including a support seat 1, a pressure ring 2 and a piston rod 3, the piston rod 3 is slidably installed in the support seat 1, the pressure ring 2 is slidably installed on the outside of the support seat 1, and the bottom of the piston rod 3 A high-pressure chamber 4 is formed between the bottom of the support seat 1 and a plunger 5 is fixedly installed on the bottom of the support seat 1. The oil inlet hole in ...

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Abstract

The invention, which relates to the technical field of weighing sensors, discloses a hydraulic weighing sensor comprising a support seat, a pressing ring and a piston rod. The piston rod is slidably mounted in the support seat. The pressing ring is installed at the outer side of the support seat in a sliding manner; and a high pressure chamber is formed between the bottom of the piston rod and thebottom in the support seat. A plunger is fixedly installed at the bottom in the support seat and penetrates the bottom of the piston rod. Two lead screws are installed at the bottom in the support seat and are arranged at the two sides of the plunger symmetrically by using the axis of the support seat as the center. According to the hydraulic weighing sensor, the liquid levels are flush with eachother and the volume of oil in the standard oil tank is constant, so that the volume of oil in a high pressure chamber is also unchanged; and after the oil is compressed into a low pressure chamber completely, the compression amount of a reset spring does not deviate and thus the measurement result becomes accurate.

Description

technical field [0001] The invention relates to the technical field of weighing sensors, in particular to a hydraulic weighing sensor. Background technique [0002] The load cell is actually a device that converts the quality signal into a measurable electrical signal output, which can be divided into photoelectric type, hydraulic type, electromagnetic force type, capacitive type, magnetic pole change form, vibration type, gyro ceremony, resistance strain 8 categories such as formula. like figure 1 As shown, it is a hydraulic load cell. When the lifting container hits the sensor at a certain speed, the protective cover 15 is first affected by the impact force, and the impact force is transmitted to the piston rod through the disc spring 16, and the oil in the high-pressure chamber As the pressure increases, the hydraulic oil passes through the plunger to the low-pressure chamber 17 to compress the return spring 18, and the system calculates the force generated by the impac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/02G01G23/01G01G21/02
CPCG01G3/02G01G21/02G01G23/01
Inventor 梁泉贤
Owner 博兴兴业智能新材料有限公司
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