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Safe and energy-saving hydraulic press

A hydraulic press and safety technology, applied in the field of hydraulic press, can solve problems such as complex design, achieve the effects of improving equipment safety, reducing the power and energy consumption of the whole machine, and reducing the amount of oil supplied

Inactive Publication Date: 2017-01-04
WUXI PENGDA HYDRAULIC MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Electrical aspects: electrical programming interlock, the design is more complicated;

Method used

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  • Safe and energy-saving hydraulic press

Examples

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Embodiment 1

[0031] Such as figure 1 with figure 2 shown.

[0032] Taking 300t as an example, the main cylinder 1 includes two plunger cylinders. In order to meet the main tonnage requirements, the two plunger cylinders are each 150t, and are symmetrically arranged on both sides with the center line of the hydraulic press.

[0033] The quick cylinder 2 is located in the middle of the hydraulic press and is responsible for the quick release, demoulding and quick return of the slider 3. The size configuration of the quick cylinder 2, the maximum demoulding force is designed according to 300KN.

[0034] Both the master cylinder 1 and the fast cylinder 2 are installed on the upper beam 6 through screws, the head flange of the master cylinder 1 is connected with the slider 3, and the fast cylinder 2 is connected with the Slider 3 is connected.

[0035] The counterweight 4 is arranged in two or four columns on both sides of the hydraulic press, and the weights of the counterweights on both ...

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Abstract

The invention discloses a safe and energy-saving hydraulic press which comprises a main cylinder, a fast cylinder, a sliding block and a counterweight, wherein the main cylinder is used for meeting the main tonnage requirements; the fast cylinder is used for realizing sliding-down, demolding and fast return of the sliding block; both the main cylinder and the fast cylinder are connected with the sliding block; the counterweight is connected with the sliding block through a lifting actuator, the minimum total weight Tz of the counterweight is equal to sliding block weight Th plus total weight Tm of a die on a hydraulic press plus friction force overcome by sliding block return. In such a manner, the safe and energy-saving hydraulic press disclosed by the invention has the benefits that the self weight of the sliding block is eliminated, the return force is reduced, the overall power and the energy consumption are greatly reduced, the oil supply quantity of equipment is reduced, and the overall heat productivity is reduced; as the sliding block has an upward movement trend in an initial state, the equipment safety is greatly improved; the complex safety protection design in mechanical design, electrical programming and hydraulic design can be omitted.

Description

technical field [0001] The invention relates to the field of hydraulic machines, in particular to a safe and energy-saving hydraulic machine. Background technique [0002] In the practical application of hydraulic presses, due to the long stroke, in order to improve work efficiency, the return stroke speed needs to be gradually accelerated (fast down is achieved by self-weight, the oil cylinder filling valve absorbs oil to realize oil replenishment, and the lower chamber discharges oil), and the entire working cycle is shorter. The work required by the press during the entire working process includes: slowing down, working, pressure holding, pressure relief, slow return, fast return, slow return and other auxiliary actions. The most work in this part is generated during the fast return process. The slider The work done in the return journey accounts for more than 80% of the work done by the whole machine. [0003] During the return process of the slider, the traditional hyd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/34B30B15/00
CPCB30B1/34B30B15/0052
Inventor 孙铁卞彪李烨
Owner WUXI PENGDA HYDRAULIC MACHINE FACTORY
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