KR200209205Y1 - Oil seal chamber - Google Patents

Abstract

The present invention relates to an oil seal chamber for preventing the leakage of oil by preventing the seal of the seal used to prevent the leakage of oil, such as hydraulic pumps, compressors, etc., which is installed on the wing disposed in the space between the main body and the rear cover While the shaft is arranged to protrude to the outside of the main body, the pulley is coupled to the outside of the shaft, the chamber having an insertion space is coupled to the oil seal and the bearing to prevent the leakage of oil and to support the shaft is formed on one side of the main body, A chamber in which an oil passage hole is formed between the chamber and the oil suction pipe, characterized in that a groove is formed so that the rubber edge of the seal is pushed into the inner wall of the insertion space of the chamber into which the seal is press-fitted. .

The present invention prevents the oil seal from being coupled to the groove formed in the insertion space of the chamber, thereby preventing the leakage of oil and preventing the seal from being broken, thereby extending the life and providing economical use for semi-permanent use.

Description

Oil Seal Chamber {OIL SEAL CHAMBER}

The present invention relates to an oil seal chamber for preventing the leakage of oil by preventing the sealing of the seal used to prevent the leakage of oil, such as hydraulic pumps, compressors.

General hydraulic pumps, compressors, etc. are installed in the wing (3) disposed in the space between the main body 1 and the rear cover 2, as shown in Figure 1a and 1b attached to the shaft to protrude out of the main body (1) (4) is built up, the pulley (5) is coupled to the outside of the shaft (4), the chamber (11) to which the oil seal (6) and bearing (7) are coupled to prevent oil leakage and to support the shaft. It is formed on one side of the main body 1, the oil passage hole 15 is formed between the chamber 11 and the oil suction pipe 8, the chamber 1 is located in the oil passage hole (15) The insertion space 12 of the oil seal 6, and the bearing 7 insertion space 13 extending outwardly of the insertion space 12, are formed in a stepped shape.

However, in the structure as described above, when the shaft 4 is rotated to purify the oil, pressure is generated in the oil passage hole 15 while the pressure is generated in the oil, and the oil seal 6 is driven by the bearing. 7) The oil seal 6 and the bearing 7 are easily broken because the heat is generated by being pushed toward the oil, and thus oil leaks. In order to prevent this, a circulation hole (not shown) through which the oil introduced into the oil passage hole 15 is formed to prevent oil leakage or the oil seal from being pushed due to an increase in the oil pressure, but depending on the characteristics of the product. There may be cases where the function of the circulation hole alone is not sufficient.

In addition, in order to solve the above problem, as shown in FIG. 1B, oil leakage and breakage due to the sliding of the seal 6 are prevented through the metal plate 9, which is a washer, between the oil seal 6 and the bearing 7. But. This is due to the increase in the size of the chamber 11 for the addition of parts of the metal plate 9 and the provision of a space into which the metal plate 9 is to be inserted, thereby increasing the manufacturing cost and weight, and degrading the quality due to the omission of the metal plate 9 during assembly. The problem arises.

The present invention was devised to solve the conventional problems as described above, the object of the present invention is to seal the seal to prevent the sealing phenomenon even if the change in the indentation tolerance and roughness of the seal caused by the use of the equipment The present invention provides an oil seal chamber in which a groove is formed in the inner wall of the insertion space to be inserted so that the rubber of the seal is pushed in to prevent the oil from leaking and breaking of the seal.

1A is a cross-sectional view showing a state in which an oil seal is coupled to a conventional chamber;

1B is a perspective view illustrating a chamber in which a metal plate is combined to prevent rolling of an oil seal as another exemplary embodiment;

2 is a cross-sectional view showing a chamber according to the present invention,

3 is a cross-sectional view showing a state in which the oil seal is coupled to the chamber according to the present invention.

* Description of the symbols for the main parts of the drawings *

1 body 2 rear cover

3: wing 4: axis

5: pulley 6: seal

7: bearing 8: suction pipe

11 chamber 12, 13 insertion space

14: home

The oil seal chamber of the present invention for achieving the above object is arranged on the wing disposed in the space between the main body and the rear cover, the shaft is elongated to protrude to the outside of the main body, the pulley is coupled to the outside of the shaft, to prevent the leakage of oil And a chamber having an insertion space to which the oil seal and the bearing are coupled to support the shaft, wherein a chamber is formed at one side of the main body, and an oil passage hole is formed between the chamber and the oil suction pipe. It is characterized in that the groove is formed so that the rubber edge of the seal is pushed into the insertion space of the chamber.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 and 1a showing the oil seal chamber of the present invention embodiment, the pump is built up on the wing 3 for circulating oil disposed in the space between the body 1 and the back cover 2 While the shaft 4 is arranged to protrude to the outside of the main body 1, the power transmission pulley 5 is coupled to the outside of the shaft (4).

A chamber having insertion spaces 12 and 13 to which the oil seal 6 and the bearing 7 are coupled between the vane 3 and the pulley 5 to support oil leakage and to support the shaft 4. 11 is integrally formed on one side of the main body 1, and an oil passage hole 15 is formed between the chamber 11 and the oil suction pipe 8 to supply contact oil when the shaft 4 rotates. Heat generation and abrasion of the oil seal 6 to be prevented.

A groove 14 is formed inside the insertion space 12 of the chamber 11 so that the rubber edge portion of the seal 6 embedded with the 'L' type metal inserted into the insertion space 12 is pushed in. Done.

The width of the groove 14 is formed in a size of 1/5 to 2/5 with respect to the width of the seal 6 according to the difference in the oil pressure, the depth can be pushed in the rubber edge of the seal (6) 0.3 to 1.0 mm, the shape is preferably a square, but the cross-sectional shape may be variously formed in a semi-circular or triangular shape or the like depending on the degree of oil pressure generated.

In the present invention configured as described above, when the seal 6 is inserted into the insertion space 12 of the chamber 11, the circumferential surface of the seal 6 is forced to the insertion space 12 by fitting. When the insertion is completed, the rubber around the periphery of the seal 6 is pushed into the groove 14 formed in the inner wall of the insertion space 12 of the chamber 11 and firmly engaged.

2kgf / cm3 of compressed air is injected into the suction pipe 8 to check the rolling of the seal 6 in which the periphery rubber is inserted into the groove 14 formed in the inner wall of the insertion space 12 of the chamber 11. The result of the measurement after sealing the discharged part while supplying to the through-hole 15 to confirm that, in the case of the existing chamber, it can be confirmed that the seal 6 is pushed toward the bearing 1.0 on average 1.0 to 1.2 mm, but the chamber 11 It is confirmed that the seal 6 of the present invention, in which the rubber part of the periphery is inserted into the groove 14 formed in the insertion space 12 of the c), is not pushed at all and can prevent the leakage of oil.

In addition, the seal 6 in which the periphery rubber is inserted into the groove 14 formed in the inner wall of the insertion space 12 of the chamber 11 has a blade 3 fixed to the shaft 4 by the rotation of the pulley 5. Rotation of the oil prevents the oil from leaking in place firmly without being pushed even when the oil pressure is transmitted as the oil is circulated, and since the seal 6 is not pushed into the bearing 7, there is no contact. It can be used semi-permanently.

In addition, the groove 14 formed in the inner wall 12 of the insertion space 12 of the chamber 11 and the pump in which the periphery rubber of the seal 6 is fitted in the groove 14 are not limited to circulating oil. It is intended to be applied to all pumps circulating various fluids such as water.

The present invention is a very useful design that can be used semi-permanently by preventing the leakage of the oil seal coupled to the groove formed in the insertion space of the chamber to prevent the leakage of oil and damage of the seal to extend the life.

Claims (2)

The shaft 4 is arranged to protrude to the outside of the main body 1 while being installed in the wing 3 arranged in the space between the main body 1 and the rear cover 2, and the pulley (outside the outer shaft 4) 5) is coupled, the chamber 11 having insertion spaces (12, 13) to which the oil seal (6) and the bearing (7) are coupled to prevent the leakage of oil and to support the shaft is integrated on one side of the body (1) In the oil seal chamber of the hydraulic pump formed of the oil passage hole 15 is formed between the chamber 11 and the oil suction pipe (8), Characterized in that the grooves (14) are formed so that the rubber edges of the seals (6) are pushed into the inner wall of the insertion space (12) of the chamber (11) into which the oil seal (6) is press-fitted. Oil seal chamber. The method of claim 1, The groove (14) is an oil seal chamber, characterized in that the cross section is rectangular.