CN204201058U - Hydraulic sealing series assembly with adjustable thickness - Google Patents

Abstract

The utility model provides a hydraulic seal series assembly with adjustable thickness, which is composed of a group of annular gaskets with a thickness series. A sealing groove is opened on one side of the gasket, and an "O"-shaped sealing ring is embedded in the sealing groove; the one The washers of group thickness series include a washer with base thickness H and 3 washers with base thickness H plus an integer multiple of 1/4 pitch L. The integers are 1, 2, and 3, forming a set of thickness H, H+L /4, H+L/2, H+3L/4 series gaskets. The utility model can avoid the problem of scraping the communication cable caused by the improper wiring direction of the arm cylinder displacement sensor of the winding aid, improve the operation rate of the unit; effectively improve the sealing effect, avoid oil leakage, reduce fuel consumption, and help improve operation environment; avoid damage to the displacement sensor caused by the inability to adjust the wiring direction, and prolong the service life of the displacement sensor; it can be widely used in the adjustment of the direction of the elbow connecting the oil pipe of hydraulic equipment.

Description

A series of hydraulic seal components with adjustable thickness

technical field

The utility model belongs to the field of hydraulic machinery, in particular to a thickness-adjustable sealing series assembly for a hydraulic cylinder and a sensor connected by a thread.

Background technique

The coil arm cylinder of the continuous annealing unit of the cold rolling plant and the compression cylinder of the scrap press are equipped with displacement sensors to detect and control the moving position of the equipment. The displacement sensor is an imported component, which is installed on the rear end cover of the hydraulic cylinder of the equipment. The displacement sensor and the hydraulic cylinder are connected by threads, and the hydraulic oil is sealed by the sealing ring installed on the displacement sensor body. During the long-term use, it was found that the connection of the communication line of the displacement sensor is directional, and the wiring direction must be outward, and the wiring direction of the displacement sensor is often not guaranteed to be in the outward direction after the thread is tightened. If the displacement sensor is loosened while ensuring the wiring direction, oil leakage will occur. If the wiring direction of the displacement sensor is not facing outward after the thread of the displacement sensor is tightened, the communication cable of the displacement sensor will interfere with the frame of the winder, and the communication cable will be easily loosened or broken, resulting in interruption of the communication of the displacement sensor, which will not only cause damage to the unit A parking accident occurred, causing more than 40 tons of scrap steel at one time; and directly caused the loss of gas and electric energy of the continuous annealing furnace.

Contents of the invention

The utility model aims to provide a hydraulic sealing series component with adjustable thickness, which can adjust the wiring direction of the displacement sensor after tightening, prevent the damage of the displacement sensor and the accident of cable scraping, and avoid oil leakage.

For reaching this purpose, the utility model has taken following solution:

A hydraulic seal series assembly with adjustable thickness, characterized in that it is composed of a group of annular gaskets of series thickness, a sealing groove is opened on one side of the gasket, and an "O"-shaped sealing ring is embedded in the sealing groove;

The set of washers with a thickness series includes a washer with a base thickness H and three washers with an integral multiple of the base thickness H plus 1/4 pitch L, the integers of which are 1, 2, and 3, forming a set of washers with a thickness of H, H+L/4, H+L/2, H+3L/4 series gaskets.

The beneficial effects of the utility model are:

1. It can avoid the problem of scraping the communication cable caused by the displacement sensor of the arm cylinder of the winding aid due to the improper wiring direction, and improve the operation rate of the unit;

2. It can effectively improve the sealing effect, avoid oil leakage, reduce fuel consumption, and help improve the working environment;

3. It avoids the damage accident of the displacement sensor caused by the inability to adjust the wiring direction, and prolongs the service life of the displacement sensor;

4. It can be widely used in the adjustment of the direction of the connecting elbow of the oil pipe of hydraulic equipment.

Description of drawings

Figure 1 is a group of thickness-adjustable hydraulic seal series components;

Figure 2 is a diagram of the installation state of the thickness-adjustable hydraulic seal series components.

In the figure: gasket 1, sealing ring 2, displacement sensor 3, hydraulic cylinder 4.

Detailed ways

It can be seen from Fig. 1 that the utility model thickness adjustable hydraulic seal series assembly is composed of a set of (4) thickness series of gaskets 1, the gasket 1 is a circular ring, and a sealing groove is opened on one side of the gasket 1. An "O"-shaped sealing ring 2 is embedded in the sealing groove.

Four washers 1, including one is the base thickness H, and the thickness of the other three washers 1 is the base thickness H plus an integer multiple of 1/4 pitch L, and the integers are 1, 2, 3, forming a group of thicknesses H , H+L/4, H+L/2, H+3L/4 series gasket 1.

Figure 2 is a diagram of the installation state of the thickness adjustable hydraulic seal series components. When assembling, remove the displacement sensor 3, install the gasket 1 with the thinnest thickness in the assembly, that is, the base thickness H, to the connection end of the hydraulic cylinder 4, and then install the displacement sensor 3 and tighten it. Check whether the wiring direction of the displacement sensor 3 interferes with the movement of the winding aid body. If there is interference, remove the displacement sensor 3 and replace the gasket 1 until there is no interference.

Claims (1)

1. a thickness adjustable hydraulic sealing serial component, it is characterized in that, be made up of the ring packing ring of one group of thickness series, packing ring side has a circle seal groove, is embedded with " O " V-shaped ring in seal groove;

The packing ring of described one group of thickness series comprises 3 packing rings that the packing ring of a base thickness H and base thickness H add 1/4 pitch L integral multiple, and its integer is 1,2,3, forms the serial packing ring that one group of thickness is respectively H, H+L/4, H+L/2, H+3L/4.