Sealing device used for brake piston of quick press machine

A sealing device and piston technology, which is applied in fluid pressure actuators, brake actuators, mechanical equipment, etc., can solve the problems of loss of sealing effect and damage of sealing rings, and achieve increased area, stable installation, and optimized flow state Effect

CN109114065AActive Publication Date: 2019-01-01TIANJIN UNIV
19 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-01-01

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A sealing device used for a brake piston of a quick press machine comprises a piston top and a brake cylinder rear end cover matched with the piston top, and is characterized in that the piston top isa circular truncated cone type brake piston top; the brake cylinder rear end cover is a circular truncated cone groove type brake cylinder rear cover; the brake piston top and a brake piston body areconnected through a bolt via a reserved bolt hole; the piston top is wrapped with a sealing rubber sleeve matched with the piston top in size; and a hole is reserved in the position, at the bolt holeof the circular truncated cone top, of the sealing rubber sleeve, bolt connection is facilitated, an opening is formed in the bottom of the circular truncated cone, and mounting of the sealing sleeveis facilitated.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention relates to a sealing device for a brake piston of a fast press, in particular to an anti-falling sealing device which uses hydraulic oil to establish a pressure environment in a brake cylinder. Background technique:

[0002] In the preparation stage of the fast compressor, in order to establish a reverse pressure greater than the air pressure of the driving piston, it is necessary to pump hydraulic oil into the brake cylinder through an oil pump, relying on the incompressibility of the liquid to establish sufficient oil pressure, so that the brake The moving piston is pressed tightly on the rear cover of the brake cylinder, so that the connecting rod between the pistons is in a balanced state, which is convenient for releasing the oil pressure at the beginning of the experiment, so as to achieve the purpose of quickly compressing the gas in the cylinder under the pressure of the piston driven by a large enough air pressure.

[0003] In t...

Examples

Embodiment Construction

[0023] The disc-shaped brake piston top 6 and the matching disc-groove brake cylinder rear end cover 9 are adopted, and the brake piston top 6 and the brake piston main body 1 are connected by bolts through the reserved bolt holes 3 . Cone type piston top 6 wraps up with the sealing rubber sleeve 2 that size matches with it. The sealing rubber sleeve 2 has a hole at position 3 of the bolt hole on the top of the round table, which is convenient for bolt connection, and an opening at position 5 at the bottom of the round table, which is convenient for the installation of the sealing sleeve.

[0024] Installation method: insert the round table part 6 on the top of the brake piston into the seal sleeve from the opening 5 at the bottom of the seal sleeve, align the bolt holes with the opening 4 of the seal sleeve, and use bolts to connect the top 6 of the brake piston and the main body 1 as a whole , and installed on the connecting rod 7.

[0025] Working process: press the top 6 ...