Safety energy-saving hydraulic machine

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, eliminating dead weight, and reducing the power and energy consumption of the whole machine

Inactive Publication Date: 2019-07-05
江苏隆旭重工机械有限公司
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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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  • Safety energy-saving hydraulic machine

Examples

Experimental program
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Effect test

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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PUM

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Abstract

The invention discloses a safety energy-saving hydraulic machine. The safety energy-saving hydraulic machine comprises a main cylinder, a quick cylinder, a slide block and a counter weight, wherein the main cylinder is used for meeting the main tonnage requirement; the quick cylinder is used for achieving quick descending, demolding and quick returning of the slide block; the main cylinder and thequick cylinder are both connected with the slide block; the counter weight is connected with the slide block through a lifting executing device, and the minimum total weight Tz of the counter weightis equal to the sum of the weight of the slide block Th, the total weight Tm of an upper mold of the hydraulic machine and the friction force Ts overcome by the return stroke of the slide block. In this way, through the safety energy-saving hydraulic machine, the self weight of the slide block is eliminated, the return stroke force is decreased, the power and energy consumption of the whole machine are greatly decreased, the oil supply quantity of the equipment is decreased, and the heating quantity of the whole machine is decreased; the slide block has the upward moving tendency in the original state, so that the equipment safety is greatly improved; and the complex safety protection design in the 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 realized by self-weight, the oil filling valve of the oil cylinder absorbs oil to realize oil replenishment, and the lower chamber discharges oil), and the entire working cycle is less. 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 on the return journey accounts for more than 80% of the work done by the complete machine. [0003] During the return process of the slider, the trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B1/32B30B15/00B30B15/28
CPCB30B1/32B30B15/00B30B15/28
Inventor 周生周海燕张建军
Owner 江苏隆旭重工机械有限公司
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