CN215634956U

CN215634956U - Anti-loosening dynamic pressure ring plate

Info

Publication number: CN215634956U
Application number: CN202121784401.2U
Authority: CN
Inventors: 马亮
Original assignee: Zhuozhou Jinghang Yichang Electrical Equipment Co ltd
Current assignee: Zhuozhou Jinghang Yichang Electrical Equipment Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-25
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a locking dynamic pressure ring plate, which relates to the field of mechanical sealing and comprises a mechanical shaft, wherein a sealing assembly is sleeved on the outer side surface of the mechanical shaft, a mechanical outer ring is sleeved on the outer side surface of the sealing assembly, the sealing assembly comprises an upper pressure ring plate, an inner upper inclined surface is obliquely arranged below the inner side of the upper pressure ring plate, the upper pressure ring plate is abutted with a sealing ring through the inner upper inclined surface, an outer upper inclined surface is obliquely arranged above the sealing ring, an outer lower inclined surface is obliquely arranged below the sealing ring, a notch is formed in the middle of the front surface of the sealing ring, the sealing ring is abutted with a lower pressure ring plate through the outer lower inclined surface, an inner lower inclined surface is obliquely arranged above the inner side of the lower pressure ring plate, a plurality of first through holes are formed in the bottom of the upper pressure ring plate in a penetrating manner, a plurality of second through holes are formed in the top of the lower pressure ring plate in a penetrating manner, and bolts are slidably connected in the first through holes. The sealing assembly is arranged, so that mechanical effective sealing can be realized on mechanical shafts with different fine sizes.

Description

Anti-loosening dynamic pressure ring plate

Technical Field

The utility model relates to the field of mechanical sealing, in particular to a locking dynamic pressure ring plate.

Background

The sealing ring is an annular sealing element with a notch, the sealing ring is placed in an annular groove of the sleeve, the sleeve and the shaft rotate together, and the sealing ring is tightly abutted against the inner hole wall of the static element by the elasticity of the pressed notch, so that the sealing effect can be achieved. Each contact surface is hardened and polished. The sealing ring is made of chromium-containing wear-resistant cast iron and can be used at the sliding speed of less than 100 m/s; if the sliding speed is in the range of 60 to 80m/s, the seal ring can be made of tin bronze. The seal ring is a generic term for a dynamic ring and a static ring (the same applies hereinafter), and is the most important element constituting a mechanical seal. The sealing ring determines to a large extent the service performance and the life of the mechanical seal, and therefore, demands are made on it: the sealing gasket has enough strength and rigidity, is not damaged under working conditions (such as pressure, temperature, sliding speed and the like), has minimum deformation, and can still maintain the sealing property when the working conditions fluctuate; the sealing end face should have sufficient strength and corrosion resistance to ensure satisfactory service life under working conditions; the sealing ring has good thermal shock resistance, so that the material is required to have higher thermal conductivity and smaller linear expansion coefficient, and cannot crack when being subjected to thermal shock. Sealing rings are used in a large number of mechanical components for sealing the gap between a machine shaft and a circular housing.

However, the mechanical shaft has a small size difference, and the sealing ring with a fixed size cannot completely fit with the mechanical shaft with the small size difference, thereby resulting in a poor sealing performance and possibly affecting the normal operation of the machine. In order to solve the above problems, it is necessary to provide a locking snap ring plate.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the technical scheme provides the anti-loosening dynamic pressure ring plate, and the problem that the sealing ring with the fixed size cannot be completely matched with a mechanical shaft with a slight size difference to cause poor sealing performance in the background technology is solved.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides a locking pressure ring plate, including the mechanical axis, the mechanical axis lateral surface has cup jointed seal assembly, mechanical outer lane ring has been cup jointed to seal assembly's lateral surface, seal assembly includes the pressure ring plate, it is provided with interior inclined plane to go up the inboard below slope of pressure ring plate, it has the sealing ring to go up the inclined plane butt through interior upper inclined plane to go up the pressure ring plate, the top slope of sealing ring is provided with outer upper inclined plane, the below slope of sealing ring is provided with outer lower inclined plane, the breach has been seted up to the position in the middle of the sealing ring openly, the sealing ring has lower pressure ring plate through outer lower inclined plane butt, the inboard top slope of lower pressure ring plate is provided with interior lower inclined plane, it has seted up the first through-hole of a plurality of to go up the pressure ring plate bottom to run through, a plurality of second through-hole has been seted up to the top of lower pressure ring plate, mechanical outer lane intra-side top fixedly connected with support ring.

Preferably, the first through hole is connected with a bolt in a sliding mode, and the bottom of the bolt is in threaded connection with the corresponding second through hole.

Preferably, the first through holes are arranged on the surface of the upper pressure ring plate at equal intervals according to the circumference of the upper pressure ring plate, and the second through holes are arranged on the surface of the lower pressure ring plate at equal intervals according to the circumference of the lower pressure ring plate.

Preferably, the inner upper inclined plane is abutted to the outer upper inclined plane, the inclination angle of the inner upper inclined plane is forty-five degrees, and the inclination angle of the outer upper inclined plane is forty-five degrees.

Preferably, the outer lower inclined plane is abutted against the inner lower inclined plane, the inclination angle of the outer lower inclined plane is forty-five degrees, and the inclination angle of the inner lower inclined plane is forty-five degrees.

Preferably, the size of the lower pressure ring plate is consistent with that of the upper pressure ring plate, and the diameter of the outer ring of the lower pressure ring plate is consistent with that of the inner ring of the mechanical outer ring.

Preferably, the distance from the first through hole to the circle center of the upper pressure ring plate is greater than the diameter of the outer ring of the sealing ring.

Compared with the prior art, the utility model provides an anti-loosening dynamic pressure ring plate, which has the following beneficial effects:

through setting up seal assembly, the existence breach among the seal assembly, therefore, to the mechanical axis that is in the difference of slight size, when last clamp plate and lower clamp plate carry out the pressfitting to the sealing ring, because the special inclined plane structure of their junction, the sealing ring can inwards hold tightly the mechanical axis, then make sealing ring and mechanical axis junction complete coincide, there is not the gap, this makes this structure when dealing with the mechanical axis that slight size is different, can effectively fill up the gap between mechanical axis and the mechanical outer lane ring, make whole machinery keep good leakproofness, and this structure is very simple, and the cost is very low, it is also very easy to use.

Drawings

FIG. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic view of the split structure of the present invention;

FIG. 3 is a schematic diagram of an upper pressure ring structure according to the present invention;

FIG. 4 is a schematic view of a seal ring structure of the present invention;

fig. 5 is a schematic structural view of a lower pressure ring plate according to the present invention.

The reference numbers in the figures are:

101. a mechanical shaft; 102. a mechanical outer ring; 103. a support ring;

200. a seal assembly; 201. a bolt; 202. an upper pressure ring plate; 203. a seal ring; 204. pressing the ring plate downwards; 205. a first through hole; 206. an inner upper inclined plane; 207. an outer upper inclined plane; 208. an outer lower inclined plane; 209. a notch; 210. an inner lower inclined plane; 211. a second via.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-5, a locking dynamic pressure ring plate comprises a mechanical shaft 101, a sealing assembly 200 is sleeved on the outer side surface of the mechanical shaft 101, a mechanical outer ring 102 is sleeved on the outer side surface of the sealing assembly 200, the sealing assembly 200 comprises an upper pressure ring plate 202, an inner upper inclined surface 206 is obliquely arranged below the inner side of the upper pressure ring plate 202, the upper pressure ring plate 202 is abutted with a sealing ring 203 through the inner upper inclined surface 206, an outer upper inclined surface 207 is obliquely arranged above the sealing ring 203, an outer lower inclined surface 208 is obliquely arranged below the sealing ring 203, a notch 209 is arranged in the middle of the front surface of the sealing ring 203, the sealing ring 203 is abutted with a lower pressure ring plate 204 through the outer lower inclined surface 208, an inner lower inclined surface 210 is obliquely arranged above the inner side of the lower pressure ring plate 204, a plurality of first through holes 205 are formed in the bottom of the upper pressure ring plate 202, a plurality of second through holes 211 are formed in the top of the lower pressure ring plate 204, a support ring 103 is fixedly connected to the upper part of the inner side of the mechanical outer ring 102;

referring to fig. 2, 3, 4 and 5, in use, firstly, the upper pressure ring plate 202 is sleeved on the surface of the mechanical shaft 101, then, the secondary seal ring 203 is sleeved on the surface of the mechanical shaft 101, and finally, the lower pressure ring plate 204 is sleeved on the surface of the mechanical shaft 101, the upper pressure ring plate 202 and the lower pressure ring plate 204 are moved, so that the inner upper inclined plane 206 of the upper pressure ring plate 202 is abutted with the outer upper inclined plane 207 of the seal ring 203, so that the inner lower inclined plane 210 of the lower pressure ring plate 204 is abutted with the outer lower inclined plane 208 of the seal ring 203, at this time, the positions of the first through hole 205 of the upper pressure ring plate 202 and the second through hole 211 of the lower pressure ring plate 204 are made to correspond, the bolt 201 is screwed into the first through hole 205, and the other end of the bolt 201 is made to enter the second through hole 211, the bolt 201 is screwed, and the distance between the upper pressure ring plate 202 and the lower pressure ring plate 204 is reduced with the screwing of the bolt 201, so that the inner upper inclined plane 206 of the upper pressure ring plate 202 and the inner lower inclined plane 210 of the lower pressure ring plate 204 are respectively abutted with the outer inclined plane 207 and the outer inclined plane 207 of the outer seal ring 203 of the outer seal ring 207 The force of the outer lower inclined surface 208 of the sealing ring 203 towards the inner side causes the sealing ring 203 to be tightly held with the mechanical shaft 101, when the bolt 201 is screwed to the limit position, the sealing ring 203 is completely matched with the mechanical shaft 101, and at this time, the bolt 201 completes the fixation of the upper pressure ring plate 202 and the lower pressure ring plate 204.

Specifically, a bolt 201 is slidably connected in the first through hole 205, and the bottom of the bolt 201 is in threaded connection with the corresponding second through hole 211.

The first through holes 205 are arranged on the surface of the upper pressure ring plate 202 at equal intervals along the circumference of the upper pressure ring plate 202, and the second through holes 211 are arranged on the surface of the lower pressure ring plate 204 at equal intervals along the circumference of the lower pressure ring plate 204.

The inner upper inclined plane 206 is abutted against the outer upper inclined plane 207, the inclination angle of the inner upper inclined plane 206 is forty-five degrees, and the inclination angle of the outer upper inclined plane 207 is forty-five degrees.

The outer lower inclined plane 208 is abutted against the inner lower inclined plane 210, the inclination angle of the outer lower inclined plane 208 is forty-five degrees, and the inclination angle of the inner lower inclined plane 210 is forty-five degrees.

The size of the lower pressure ring plate 204 is the same as that of the upper pressure ring plate 202, and the outer ring diameter of the lower pressure ring plate 204 is the same as that of the inner ring of the mechanical outer ring 102.

The distance from the first through hole 205 to the center of the upper pressure ring plate 202 is larger than the diameter of the outer ring of the sealing ring 203.

The working principle and the using process of the utility model are as follows: by arranging the sealing assembly 200, the gap 209 exists in the sealing assembly 200, therefore, for the mechanical shafts 101 with different fine sizes, when the upper pressure ring plate 202 and the lower pressure ring plate 204 press the sealing ring 203, due to the special inclined plane structure of the joint, the sealing ring 203 can inwards hold the mechanical shaft 101, so that the joint of the sealing ring 203 and the mechanical shaft 101 is completely matched without a gap, and the structure can effectively fill the gap between the mechanical shaft 101 and the mechanical outer ring 102 when dealing with the mechanical shafts 101 with different fine sizes, so that the whole machine keeps good sealing performance, and the structure is very simple, low in cost and easy to use.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A locking dynamic pressure ring plate is characterized by comprising a mechanical shaft (101), wherein a sealing assembly (200) is sleeved on the outer side surface of the mechanical shaft (101), a mechanical outer ring (102) is sleeved on the outer side surface of the sealing assembly (200), the sealing assembly (200) comprises an upper pressure ring plate (202), an inner upper inclined surface (206) is obliquely arranged below the inner side of the upper pressure ring plate (202), the upper pressure ring plate (202) is abutted with a sealing ring (203) through the inner upper inclined surface (206), an outer upper inclined surface (207) is obliquely arranged above the sealing ring (203), an outer lower inclined surface (208) is obliquely arranged below the sealing ring (203), a notch (209) is formed in the middle of the front surface of the sealing ring (203), the sealing ring (203) is abutted with a lower pressure ring plate (204) through the outer lower inclined surface (208), an inner lower inclined surface (210) is obliquely arranged above the inner side of the lower pressure ring plate (204), a plurality of first through holes (205) are formed in the bottom of the upper pressure ring plate (202), the top of the lower pressing ring plate (204) is provided with a plurality of second through holes (211) in a penetrating manner, and a support ring (103) is fixedly connected to the upper portion of the inner side of the mechanical outer ring (102).

2. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the first through hole (205) is connected with a bolt (201) in a sliding mode, and the bottom of the bolt (201) is in threaded connection with the corresponding second through hole (211).

3. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the first through holes (205) are arranged on the surface of the upper pressure ring plate (202) at equal intervals according to the circumference of the upper pressure ring plate (202), and the second through holes (211) are arranged on the surface of the lower pressure ring plate (204) at equal intervals according to the circumference of the lower pressure ring plate (204).

4. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the inner upper inclined plane (206) is abutted against the outer upper inclined plane (207), the inclination angle of the inner upper inclined plane (206) is forty-five degrees, and the inclination angle of the outer upper inclined plane (207) is forty-five degrees.

5. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the outer lower inclined plane (208) is abutted against the inner lower inclined plane (210), the inclination angle of the outer lower inclined plane (208) is forty-five degrees, and the inclination angle of the inner lower inclined plane (210) is forty-five degrees.

6. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the size of the lower pressure ring plate (204) is consistent with that of the upper pressure ring plate (202), and the diameter of the outer ring of the lower pressure ring plate (204) is consistent with that of the inner ring of the mechanical outer ring (102).

7. The anti-loosening dynamic pressure ring plate as claimed in claim 1, wherein: the distance from the first through hole (205) to the circle center of the upper pressure ring plate (202) is larger than the diameter of the outer ring of the sealing ring (203).