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Segmented retardant discharging device

A retarder and retarder technology, applied in the field of segmented retarder unloading devices, can solve the problems of crane impact and slow action, and achieve the effects of long working life, reduced impact and small wear

Inactive Publication Date: 2015-03-25
刘洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The hydraulic uncoupling device combines the automatic coupling device and the hydraulic cylinder through the four-bar linkage mechanism, and uses the movement of the piston rod of the cylinder to increase the uncoupling speed, which can solve the problem of slow movement when the mechanism passes the dead point, but the hydraulic uncoupling device relies on the electromagnetic reversing valve for reversing Switch the oil circuit to control the movement of the oil cylinder, the hydraulic pressure in the oil cylinder is released instantly, the tension of the wire rope of the suspension hydraulic decoupler instantly steps to zero, and the large instantaneous jump of the tension of the wire rope brings a violent impact to the crane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Reference figure 1 , The segmented retarder discharge device of this embodiment includes a retarder 1 and an automatic hooker 2. The automatic hooker 2 is located below the retarder 1, and the automatic hooker 2 is connected to the retarder 1, and the retarder 1 A spring contact rod 11 is provided above the retarder 1; a hydraulic oil circuit for controlling the hydraulic pressure of the retarder 1 is provided in the retarder 1.

[0042] The retarder 1 includes a base 13, and the top of the base 13 is provided with a lifting ring 12 and a first switch 7. Below the base 13 are provided an accumulator 14, an oil cylinder 10, a battery 9, and an oil cylinder. A wedge-shaped striker 6 is provided below 10, and the wedge-shaped striker 6 is connected to the piston rod of the oil cylinder 10; a valve block 8 is provided under the battery 9, and the first switch 7 is electrically connected to the valve block 8.

[0043] The number of the oil cylinder 10 is one.

[0044] A sun shield...

Embodiment 2

[0059] Reference Figure 4 The difference between this embodiment and embodiment 1 is only that: a switch is provided under the valve block 8, which is the second switch 23; refer to Figure 5 , The number of control oil circuits is two, divided into the first control oil circuit and the second control oil circuit. The second switch 23 is electrically connected to the electromagnetic directional valve 20 of the second control oil circuit for controlling the second control oil. The power supply of the electromagnetic directional valve 20 of the circuit is on and off. The number of oil cylinders 10 is two, and the two oil cylinders 10 are connected in parallel. The first switch 7 and the second switch 23 are travel switches. The rest is the same as in Example 1.

[0060] When this embodiment is used, the steel wire rope is first connected to the hoisting ring 12, and then the entire sectioned slow-speed discharge device is suspended under the crane hook through the wire rope; the ...

Embodiment 3

[0066] Reference Figure 7 The difference between this embodiment and the first embodiment is only: two switches are provided under the valve block 8, namely the second switch 23 and the third switch 24, the second switch 23 is located above the third switch 24 and in the same vertical In the straight direction, the vertical length of the wedge-shaped striker 6 is greater than the distance between the second switch 23 and the third switch 24; reference Figure 8 , The number of control oil circuits is three, which are divided into the first control oil circuit, the second control oil circuit and the third control oil circuit. The second switch 23 is electrically connected to the electromagnetic directional valve 20 of the second control oil circuit for The electromagnetic directional valve 20 of the second control oil circuit is turned on and off; the third switch 24 is electrically connected to the electromagnetic directional valve 20 of the third control oil circuit, and is use...

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Abstract

The invention discloses a segmented retardant discharging device. The segmented retardant discharging device comprises an automatic hooking device and a retarder, wherein the automatic hooking device is positioned below the retarder and is connected with the retarder, a spring feeler lever is arranged above the retarder, and the retarder is internally provided with a hydraulic oil path used for controlling hydraulic pressure of the retarder. According to the segmented retardant discharging device disclosed by the invention, by reducing the hydraulic pressure of the retarder in a grading mode, tensile force of a steel wire rope for hanging a heavy hammer is gradually reduced, and the heavy hammer is subjected to putting down in a stair-shaped slow descending mode from a step releasing mode, so that impact to a system due to heavy hammer release is reduced, the rebound of a cargo boom is small, the rope disordering probability of the steel wire rope is low, the abrasion of the automatic hooking device is slight, the whole machine vibration is slight, and the service life is long.

Description

Technical field [0001] The invention relates to a sectioned slow-speed discharge device. Background technique [0002] Impact machinery refers to a sudden change in the state of a mechanical system or part of it that is subject to sudden, abrupt and non-periodic excitation, which occurs much faster than the natural vibration period of the system, such as continuous wall grabs and dynamic compactors. The dynamic compaction machine relies on the high-altitude release of the heavy hammer to impact the ground operation, that is, the heavy hammer is raised to a height of tens of meters and released instantly. At present, the high-altitude release of the heavy hammer mainly adopts the decoupling mechanism. Typical decoupling mechanisms include mechanical decoupling devices, automatic hooking devices and hydraulic decoupling devices. [0003] The existing mechanical decoupling device uses the self-locking property of the dead point of the mechanism to raise the weight of dozens of tons t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/10B66C1/28B66C13/20F15B1/02F15B13/02
CPCB66C1/10B66C1/28B66C13/20F15B1/021F15B13/02
Inventor 石飞虎
Owner 刘洋
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