The sudden loss of load of the servo hydraulic machine is similar to the loss of load of other equipment. Since the hydraulic cylinder has stored huge energy oil, it will lose load once it is released suddenly. Regarding the servo hydraulic press, this is a very serious problem. How does the manufacturer deal with it?
On the one hand, it can be considered that the servo hydraulic machine increases the storage capacity of the liquid elasticity. Generally speaking, the height of the oil in the hydraulic cylinder is inversely proportional to the elastic potential energy stored in it. Therefore, when the machine suddenly loses load, it can be A backing plate is added between the gaps of the lower mold to make the working stroke of the beam move upward, thereby lowering the height of the oil in the cylinder.
Or add a movable block in the gap between the piston of the servo hydraulic cylinder and the beam. When the machine moves downward, the piston and the beam can fall synchronously. However, after pressurization, the piston will rise first due to the effect of the spacer, which has the effect of increasing the storage capacity of the elastic potential energy of the liquid. It is precisely because the oil level of the servo hydraulic machine has dropped, so the energy will not be released suddenly, and the problem of load loss can be alleviated.
In order to solve the problem of the sudden loss of load of the servo hydraulic machine, energy can also be released from other doors, so that the high and low pressure liquid in the hydraulic cylinder can be quickly removed from the surroundings. Although this treatment method is effective, it requires the operator to be more sensitive to the machine to prevent damage to the machine.
In addition, if you can add a cushion under the servo hydraulic press, it is also very beneficial for the machine. Because it can cushion the machine when the machine suddenly loses load and discharge the energy, it can reduce the machine sensation, and part of the energy will be consumed on the cushion, which can effectively reduce the damage to the machine.
