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Jack-up type detection method and apparatus for pulling-off force of magnetic hoisting equipment

A lifting equipment and testing device technology, applied in the direction of measuring device, magnetic performance measurement, testing of mechanical parts, etc., can solve problems such as tipping of pull-off force testing machine

Active Publication Date: 2017-03-15
湖南永金磁力设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, there are major security risks in this process
If the operation is out of control when driving close to the pull-off tester, the driving wire rope will hit the load-bearing beam on the top of the pull-off tester, causing the entire pull-off tester to fall

Method used

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  • Jack-up type detection method and apparatus for pulling-off force of magnetic hoisting equipment
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  • Jack-up type detection method and apparatus for pulling-off force of magnetic hoisting equipment

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Embodiment Construction

[0016] The technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings.

[0017] Explanation of symbols in the drawings: 1 is the platform steel plate; 2 is the box body; 3 is the internal gum; 4 is the pressure sensor; 5 is the hydraulic jack; 6 is the display screen; 7 is the manual pump; 8 is the side plate; 9 is the bottom plate 10 is an end plate; 11 is a foot plate; 12 is an orifice plate; 13 is a baffle plate; 14 is a rib plate; 15 is a push rod;

[0018] Top-open pull-off force detection device such as figure 1 As shown, its top is a platform steel plate 1, and the lower box body 2 has a gum 3 inside, a pressure sensor 4 is below the gum, and a hydraulic jack 5 is below the pressure sensor. In addition, the pressure sensor 4 is connected to the display device 6 through a wire, and the hydraulic jack 5 is connected to an electric or manual pump 7 through a pipeline.

[0019] There are many through...

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Abstract

The invention provides a jack-up type detection method and apparatus for pulling-off force of magnetic hoisting equipment. The jack-up type detection method for pulling-off force of magnetic hoisting equipment is characterized by disposing detected magnetic hoisting equipment on a platform of a jack-up type pulling-off force detection apparatus to enable the magnetic hoisting equipment to be in the absorbed state and to be absorbed to the surface of the platform with a plurality of through holes; setting a push rod in each through hole in the surface of the platform; using the push rods to jack up the magnetic hoisting equipment from bottom to top to enable the magnetic hoisting equipment to separate from the surface of the platform; and as the jacking force is generated at the moment that the magnetic hoisting equipment is separated from the surface of the platform, being able to measuring the pulling-off force of the magnetic hoisting equipment. The jack-up type detection apparatus for pulling-off force of magnetic hoisting equipment is characterized in that the top of the detection apparatus is a platform steel plate, and the bottom of the detection apparatus is a box body; the box body is formed by a side plate, an end plate, a base plate and a foot disk; a teeth bed is arranged in the box body, and is formed by an orifice plate, a supporting plate, reinforcing rib plates and push rods; pressure sensors are arranged below the teeth bed; each hydraulic jack is arranged below each pressure sensor; a hand pump and a display screen are arranged outside the box body; the hand pump and the hydraulic jacks are connected with each other through a pipeline; and the display screen is connected with the pressure sensors through a lead.

Description

technical field [0001] The invention belongs to the technical field of magnetic force measurement, and in particular relates to a method and device for top-opening detection of pull-off force of magnetic lifting equipment. Background technique [0002] Magnetic lifting equipment refers to equipment that uses magnetic force to absorb and transport steel materials, including lifting electromagnets, lifting permanent magnets, permanent magnetic lifters and other types. The pull-off force of the magnetic lifting device refers to the minimum force that mechanically pulls the object off. Pull-off force is the main technical parameter to measure the suction force and its safety and reliability of magnetic lifting equipment. [0003] In the past, the pull-off force of magnetic lifting equipment was tested by using chain hoists and tension gauges. Not only was the operation cumbersome and inefficient, but also it was impossible to detect products with high pull-off force. [0004] ...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01M13/02G01R33/12
CPCG01L5/0061G01M13/027G01R33/12
Inventor 黄伟良任杰
Owner 湖南永金磁力设备股份有限公司
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