Cylinder structure of hydraulic clutch brake

Abstract

The invention discloses a cylinder structure of hydraulic clutch brake. The cylinder comprises a cylinder body and a piston positioned inside the cylinder body, wherein the cylinder is provided with a manual pushing mechanism used for pushing the piston; the mechanism comprises a manual cam, pushing steel balls, a pushing ring, a pushing shaft, a disc spring and a pre-pressing spring; the manual cam is arranged at the bottom of the cylinder body; three arc grooves, which are stepped groove with different depths, are arranged on the opposite faces of the manual cam and the pushing ring and aredistributed on the same circle; three pushing steel balls are positioned inside the three arc grooves respectively; the pushing ring, the disc spring and the pre-pressing spring are sleeved on the pushing shaft sequentially; a blind hole is formed at the tail end of the piston of the cylinder; and both the front end of the pushing shaft and the pre-pressing spring are embedded inside the blind hole of the piston. In the cylinder structure, the manual pushing mechanism is added on the basis of the hydraulic cylinders of the conventional clutch brakes and the clutch brake can still work normally during outage maintenance so as to meet barring debugging requirements. The invention has the characteristics of sensitive operation, simplicity, convenience and fastness, time and labor saving, high safety and the like.

Description

Technical field: [0001] The invention relates to a hydraulic clutch brake, in particular to an oil cylinder structure of the hydraulic clutch brake. It is especially suitable for paper cutters, but can also be used on machines with hydraulic clutch brakes. Background technique: [0002] figure 1 It is a paper cutter hydraulic clutch brake structure, which is composed of an oil cylinder 101, a piston 102 and a spring 105. The oil cylinder 101 is fixed on the reducer 107, the piston 102 is set in the oil cylinder 101, and the spring 105 is set on the thrust shaft and extends into the Inside the piston 102. In normal state, the pre-pressure exerted by the spring 105 pushes against the friction disc through the bearing 104 provided at the front end of the piston 102 , the bearing seat 103 and the force transmission pin 106 . When the hydraulic cylinder is working, the pressure oil pushes the piston 102 to move forward, which in turn pushes the bearing 104, the bearing seat 10...

AI Technical Summary

Problems solved by technology

[0003] The problem is that the paper cutter always needs to be overhauled. During the overhaul, it is often necessary to adjust and test the machine repeatedly, which requires the clutch and brake to work normally. The driving force of the hydraulic system of the paper machine is provided by the main motor. Therefore, when the shutdown is overhauled, the oil cylinder cannot work, and the clutch cannot be combined, which brings difficulties to debugging.

The measures currently taken are: open the pulley cover on the machine, connect the friction plate of the clutch brake with the pulley with bolts, combine the clutch, and then turn the car, and drive the machine to run by pulling the pulley. The adverse consequences of this method yes:

[0004]Because the clutch is connected by bolts, it is always in a combined state and loses the separation and braking functions. When cranking, if the machine still fails, emergency braking is required, no If the manual operation can be stopped, the maintenance personnel will be injured or even disabled if they are not careful, which poses a great threat to the personal safety of the maintenance personnel.

In particular, after the maintenance and debugging are completed, if you forget to remove the bolts connecting the friction plate of the clutch brake and the pulley, you will directly turn on the power to start the machine, which will cause a major safety accident.

[0005]Furthermore, debugging or maintenance needs to open the pulley cover, and then connect the friction plate of the clutch brake with the pulley through bolts, and then move the pulley to drive the clutch When the brake is in working state, it is very inconvenient to debug or maintain the machine, and the labor intensity of the maintenance personnel is high, time-consuming and labor-intensive, and the work efficiency is low

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