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Hydraulic machine for forging

A technology for hydraulic presses and forgings, which is applied to the driving device of forging presses, mechanical equipment, engine components, etc., which can solve the problems of insufficient utilization of hydraulic pumps and low utilization coefficients, and achieve good mechanical properties, improve efficiency, and save energy. The effect of working hours

Pending Publication Date: 2018-04-17
JIANGYIN ZENKUNG FORGING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the filling stroke, return stroke, auxiliary process and required working pressure of the hydraulic press are small, the hydraulic pump cannot be fully utilized, especially for large-tonnage hydraulic presses, whose utilization factor is very low

Method used

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  • Hydraulic machine for forging
  • Hydraulic machine for forging
  • Hydraulic machine for forging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1 to Figure 9 As shown, the present invention is a hydraulic press for forging, including a forging workbench 1, four guide columns 2 fixedly connected to the forging workbench 1, a hydraulic motorized beam 3 slidingly matched with the guide column 2, and a fixed connection at the end of the guide column 2. The fixed beam 4 of the hydraulic press, the oil cylinder 5 fixed on the fixed beam 4 of the hydraulic press and the first oil pump 6 that drives the oil cylinder 5 to work, the piston rod 7 of the oil cylinder 5 is fixedly connected to the hydraulic motorized beam 3, the input end of the first oil pump 6 is connected to the oil tank The output end is connected to the oil cylinder 5 through the oil pipe, and the first reversing valve 8 is arranged on the oil pipe, and also includes a crank slider mechanism that makes the spool of the first reversing valve 8 reciprocate quickly. The first reversing valve 8 is a three-position four-way first reversing v...

Embodiment 2

[0038] The only difference from Embodiment 1 is that, as Figure 10 As shown, the transposition operation portion of the spool of the three-position four-way first reversing valve 8 is an operating lever 9 . The slide block 14 is connected with the operating lever 9 through a connecting piece. The connecting member includes a connecting rod 21 , one end of which is fixedly connected to the surface of the slider 14 , and the other end is rotatably connected to a third connecting rod 22 , and the third connecting rod 22 is fixedly connected to the operating lever 9 .

Embodiment 3

[0040] The difference from Embodiment 1 is that, as Figure 11 As shown, the oil circuit system includes a second oil pump 25, the first reversing valve is a three-position four-way reversing valve, a switch contact is set on one side wall of the first reversing valve, and the switch contact is connected with the controller Electrically connected, the controller is electrically connected with the electromagnet. After the electromagnet is energized, the spool of the second reversing valve 26 is controlled to move. The second reversing valve 26 is a two-position four-way electromagnetic reversing valve. The second reversing valve 26 is arranged on the oil pipe that the second oil pump 25 is connected with the oil cylinder. The output end of the second oil pump 25 is connected with the P port of the two-position four-way electromagnetic reversing valve, and the A port of the two-position four-way electromagnetic reversing valve is connected with the rodless chamber of the oil cyl...

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PUM

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Abstract

The invention discloses a hydraulic machine for forging. The hydraulic machine for forging comprises a forging workbench, at least three guide posts fixedly connected with the forging workbench, a hydraulic machine moving beam in sliding fit with the guide posts, a hydraulic machine fixed beam fixedly connected to the ends of the guide posts, an oil cylinder fixedly arranged on the hydraulic machine fixed beam, and a first oil pump driving the oil cylinder to work. A piston rod of the oil cylinder is fixedly connected with the hydraulic machine moving beam, the input end of the first oil pumpis connected with an oil tank, the output end of the first oil pump is connected with the oil cylinder through an oil pipe, and a first reversing valve is arranged on the oil pipe. The hydraulic machine for forging further comprises an oil path system for accelerating the downward pressing process of the working stroke of the oil cylinder. By means of the hydraulic machine for forging, the workingstroke of forging is shortened and the frequency is increased, so that the mechanical properties of forged wind power main shafts are superior to those of wind power main shafts forged through conventional forging hydraulic machines; in addition, due to the special arrangement of the shape of a sliding rail, the return trip is quick and the progress is slow in the working stroke, so that forgingrequirements are met; and moreover, due to the arrangement of the stepped oil cylinder, a quick idle stroke is achieved, and working hours are saved.

Description

technical field [0001] The present invention relates to a hydraulic press for forging. Background technique [0002] When the filling stroke, return stroke, auxiliary process and required working pressure of the hydraulic press are small, the hydraulic pump cannot be fully utilized, especially for large-tonnage hydraulic presses, whose utilization factor is very low. Therefore, the hydraulic press tends to transmit the working speed and working pressure in stages. Contents of the invention [0003] The object of the present invention is to overcome the defects in the prior art and provide a hydraulic press for forging. The working stroke of forging is shortened and the frequency is increased. The mechanical performance of the forged wind power main shaft is excellent. The return stroke in the stroke is fast and the process is slow to meet the requirements of forging. [0004] In order to achieve the above object, the technical solution of the present invention is to desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J9/12B21J9/18B21K1/06
CPCB21J9/12B21J9/18B21K1/06
Inventor 杨春刘圣祥赵建兴兰驹
Owner JIANGYIN ZENKUNG FORGING CO LTD