Hydraulic adjusting device for press machine crank eccentricity
A technology of a hydraulic adjustment device and a press, applied in the field of presses, can solve the problems of manual adjustment or shutdown adjustment, time-consuming and labor-intensive, etc.
Active Publication Date: 2019-01-25
XI AN JIAOTONG UNIV
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Problems solved by technology
Or adopt a mechanical adjustment method. During the adjustment process, due to the limitation of the mechanical structure, it can only be adjusted manually or the machine can be stopped to adjust its position, which is time-consuming and laborious.
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[0014] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0015] refer to figure 1 , a press crank eccentricity hydraulic adjustment device, including a transmission shaft 7, the two ends of the transmission shaft 7 are connected to the fuselage 4 through the first bearing 31 and the second bearing 32, and the middle part of the transmission shaft 7 is provided with four recesses up and down. The two grooves on the upper part and the two grooves on the lower part are symmetrical, and a plunger 5 is installed in the groove. Cavities A, B, C and D, one oil passage of the transmission shaft 7 communicates with the airtight chamber A and the airtight chamber B, and the other oil passage communicates with the airtight chamber C and the airtight chamber D;
[0016] One end of the transmission shaft 7 is equipped with a rotary joint 2, one end of the two oil circuits of the rotary joint 2 is connected with the two oil circuits of...
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The invention relates to a hydraulic adjusting device for press machine crank eccentricity. The hydraulic adjusting device comprises a transmission shaft and is characterized in that two ends of the transmission shaft are connected to a machine body through bearings, the upper portion and the lower portion of the middle of the transmission shaft are provided with four grooves, the two upper grooves are symmetrical with the two lower grooves, plungers are mounted in the grooves, the outer sides of the plungers are connected with eccentric rings, the four plungers and the transmission shaft forma sealed accommodating cavity A, a sealed accommodating cavity B, a sealed accommodating cavity C and a sealed accommodating cavity D, one oil path of the transmission shaft is communicated with thesealed accommodating cavity A and the sealed accommodating cavity B, and the other oil path of the transmission shaft are communicated with the sealed accommodating cavity C and the sealed accommodating cavity D; a rotary connector is mounted at the tip of one end of the transmission shaft, one ends of the two oil paths of the rotary connector are communicated with the two oil paths of the transmission shaft, and the other ends of the two oil paths of the rotary connector are connected with a hydraulic reversing valve; the other end of the transmission shaft is connected with the drive deviceof a press machine. The hydraulic adjusting device has the advantages that by the reversing of the hydraulic reversing valve, the quantity of oil entering the sealed accommodating cavity A and the sealed accommodating cavity B or the sealed accommodating cavity C and the sealed accommodating cavity D is controlled, the plungers push the eccentric rings to move so as to adjust the crank eccentricity in real time, and time and labor are saved.
Description
technical field [0001] The invention belongs to the technical field of presses, and in particular relates to a hydraulic adjustment device for crank eccentricity of a press. Background technique [0002] Usually the crank of the crank press is an integral part, and its position is relatively fixed and cannot be adjusted. Or adopt a mechanical adjustment method. During the adjustment process, due to the limitation of the mechanical structure, the position can only be adjusted manually or stopped, which is time-consuming and laborious. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a hydraulic adjustment device for crank eccentricity of a press, which can realize real-time adjustment of crank eccentricity and save time and effort. [0004] In order to achieve the above object, the present invention has taken the following technical solutions: [0005] A hydraulic a...
Claims
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Login to View More IPC IPC(8): B30B1/26B30B15/00
CPCB30B1/26B30B15/00
Inventor 赵升吨董朋张鹏范淑琴李帆
Owner XI AN JIAOTONG UNIV