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Crane and telescopic oil cylinder control method

A telescopic oil cylinder and crane technology, which is applied to cranes, mechanical equipment, load suspension components, etc., can solve problems such as uneven resistance of telescopic oil cylinders, vibration of empty cylinders, rough processing of boom slides, etc.

Active Publication Date: 2020-09-25
河北雷萨重型工程机械有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related technology, when the empty cylinder of the crane stretches out to find the arm position, due to the rough processing of the boom slideway and the assembly error, the resistance of the telescopic oil cylinder running on the slideway is uneven, which leads to the vibration phenomenon when the empty cylinder is running

Method used

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  • Crane and telescopic oil cylinder control method
  • Crane and telescopic oil cylinder control method
  • Crane and telescopic oil cylinder control method

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Embodiment Construction

[0036] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

[0037] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

[0038] At present, the wheeled cranes used in the market mainly use a single-cylinder...

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Abstract

The invention relates to a crane and a telescopic oil cylinder control method to solve the problems in the related art. The crane comprises a telescopic oil cylinder, a telescopic oil cylinder controller and a pressure sensor connected with the telescopic oil cylinder controller, wherein the pressure sensor is arranged on an oil inlet path of an extension cavity of the telescopic oil cylinder. Thepressure sensor is used for detecting pressure information of the extension cavity. The telescopic oil cylinder controller is used for determining whether the telescopic oil cylinder is in a shakingstate or not according to the pressure information, increasing the control current to the telescopic oil cylinder under the condition that the telescopic oil cylinder is in the shaking state so that the telescopic oil cylinder can accelerate the extension action, and reducing the control current to the telescopic oil cylinder when detecting that a boom driven by the telescopic oil cylinder reachesa target position point so that the telescopic oil cylinder can decelerate the extension action.

Description

technical field [0001] The present disclosure relates to the technical field of construction machinery, and in particular, to a control method for a crane and a telescopic oil cylinder. Background technique [0002] At present, the wheeled cranes used in the market mainly use a single-cylinder bolt telescopic mechanism to control the telescopic extension of the boom. [0003] In the related art, when the crane empty cylinder extends to find the arm position, due to rough processing of the boom slide and assembly errors, the resistance of the telescopic oil cylinder running on the slide is uneven, resulting in jitter when the empty cylinder is running. SUMMARY OF THE INVENTION [0004] The purpose of the present disclosure is to provide a crane and a telescopic oil cylinder control method to solve the problems existing in the related art. [0005] In order to achieve the above object, according to the first part of the embodiments of the present disclosure, a crane is prov...

Claims

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Application Information

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IPC IPC(8): B66C13/20B66C13/48B66C23/693F15B21/08F15B21/02
CPCB66C13/20B66C13/48B66C23/705F15B21/087F15B21/02
Inventor 杨学锋
Owner 河北雷萨重型工程机械有限责任公司
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