Fluororubber sealing ring for rotary sealing

Abstract

The fluororubber sealing ring comprises an outer ring, an inner ring and an upper assembling assembly, a plurality of hole grooves are formed in the supporting face of the outer ring, the interiors of the hole grooves are vacuum, and a plurality of upper transverse channels and a plurality of lower transverse channels are formed in the upper layer and the lower layer of the supporting face of the outer ring correspondingly; an annular groove is formed in the supporting surface of the inner ring, a partition plate is arranged in the middle of the annular groove, a lubricant is arranged on the upper portion of the partition plate and in the annular groove, a plurality of vertical channels are formed in the end face of the partition plate, inner transverse channels communicated with the vertical channels are formed in the top face of the partition plate, and a plurality of semicircular limiting blocks are arranged on the top face of the partition plate; an upper plate is arranged at the upper part of the outer end of the inner ring; the upper assembling component is arranged at the upper part of the upper plate and comprises a top plate and a lower plate; a pressing member; a connecting column; and a spring. The wear degree of the rotary sealing ring is reduced, the compatibility of the sealing ring and a lubricant is ensured, the service life is prolonged, and the replacement frequency of the sealing ring is reduced.

Description

Technical Field

[0001] The invention relates to the field of fluororubber sealing ring related equipment, in particular to a fluororubber sealing ring used for rotary sealing. Background Art

[0002] Rotary seals are a type of dynamic seal. Rotary seals consist of a sliding ring and a rubber O-ring that provides elasticity. They are used to seal rods, shafts, pins, rotary joints, etc. that have rotating or swinging motions. Rotary hydraulic rotation exists in various industrial fields such as engineering machinery, construction machinery, and automotive equipment.

[0003] The main purpose of the sealing ring is sealing. The selection of sealing ring materials is of great significance to its sealing performance and service life. The existing sealing ring structure may be subject to greater friction and wear during rotation, especially at high speeds, which may have a certain impact on the performance and efficiency of the equipment, and may also shorten the life of the sealing ring, requiring more frequent replacement. Summary of the invention

[0004] The object of the present invention is to provide a fluororubber sealing ring for rotary sealing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fluororubber sealing ring for rotary sealing, comprising an outer ring, an inner ring and an upper assembly component, the support surface of the outer ring is evenly distributed with a plurality of holes and grooves, the inside of the holes and grooves is vacuum, the support surface of the outer ring is divided into two layers, the upper and lower layers of the support surface of the outer ring are respectively provided with a plurality of upper transverse channels and a plurality of lower transverse channels, the inner end surface of the outer ring is provided with a plurality of positioning sockets, the inner ring is arranged on the inner side of the ring of the outer ring, the support surface of the inner ring is provided with an annular groove, a partition is arranged in the middle of the annular groove, a lubricant is arranged on the upper part of the partition and in the annular groove, the end surface of the partition is provided with a plurality of vertical channels, the upper and lower ends of each of the vertical channels are respectively communicated with the corresponding upper transverse channel and the lower transverse channel, the top surface of the partition is provided with an inner transverse channel communicated with the vertical channel, the top surface of the partition is provided with a plurality of semicircular limit blocks, and the upper part of the outer end of the inner ring is provided with an upper plate;

[0006] The upper assembly component is arranged on the upper part of the upper plate, and the upper assembly component comprises:

[0007] roof;

[0008] A pressing member is arranged at the lower part of the top plate and is in contact with the inner part of the annular groove on the upper part of the inner ring support surface;

[0009] A connecting column is arranged between the top plate and the lower pressing member;

[0010] The spring is arranged between the upper plate and the top plate.

[0011] Preferably, a slip ring is provided on the outside of the top plate.

[0012] Preferably, the pressing member is composed of a transverse plate, an outer arc plate and an inner arc plate, the outer arc plate and the inner arc plate are respectively arranged on the inner and outer sides of the transverse plate, and the transverse plate, the outer arc plate and the inner arc plate all adopt an annular structure.

[0013] Preferably, the end surface of the transverse plate of the pressing member is provided with a plurality of circular limiting grooves, and the circular limiting grooves and the semicircular limiting blocks are provided in a one-to-one correspondence.

[0014] Preferably, the inner end surface of the inner ring is provided with a concave-convex surface.

[0015] Preferably, the outer end surface of the outer ring is provided with a plurality of concave surfaces.

[0016] Preferably, the outer end surface of the inner ring is provided with positioning pins in the radial direction, and a plurality of positioning pins are provided and are arranged in one-to-one correspondence with the positioning sockets.

[0017] Preferably, the inner ring is provided with channels communicating with the upper transverse channel and the lower transverse channel in the radial direction upward and downward.

[0018] Preferably, the upper plate and the top plate both adopt an annular structure design.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The upper transverse channel and the lower transverse channel of the outer ring support surface and the vertical channel and the inner transverse channel of the inner ring support surface provided in the present invention allow the lubricant to penetrate from the annular groove of the inner ring to the inner and outer sides under the effect of the above structure, so that the lubricant is immersed in the outer surface of the outer ring and the inner surface of the inner ring, thereby reducing the wear degree of the rotating sealing ring, ensuring the compatibility of the sealing ring and the lubricant, extending the service life, and reducing the replacement frequency of the sealing ring;

[0021] 2. The present invention also provides an upper assembly component and a semicircular stopper, which apply external force to press the outer ring, and combine the lower pressing component in the upper half of the inner partition of the annular groove through the stopper circular groove and the semicircular stopper, so that the lubricant filled and stored in the annular groove is squeezed inward and outward through the vertical channel, the upper horizontal channel, the lower horizontal channel and the inner horizontal channel, and external force is only applied in the assembly stage, which is simple to operate;

[0022] 3. The concave surface and the concave-convex surface are also provided in the present invention. The concave surface on the outer surface of the outer ring and the concave-convex surface on the inner surface of the inner ring can store a small amount of lubricant, thereby achieving the oil sealing effect of the external sliding ring connected with the outer side of the outer ring and the inner side of the inner ring, better ensuring the compatibility of the sealing ring and the lubricant and reducing the degree of wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of the overall structure of a fluororubber sealing ring for rotary sealing according to the present invention;

[0024] Figure 2 This is a second-view structural diagram of a fluororubber sealing ring for rotary sealing according to the present invention;

[0025] Figure 3 This is a diagram of the overall disassembled structure of a fluororubber sealing ring for rotary sealing according to the present invention;

[0026] Figure 4 This is a half structural cross-sectional view of a fluororubber sealing ring for rotary sealing according to the present invention;

[0027] Figure 5 A quarter structural cross-sectional view of a fluororubber sealing ring for rotary sealing according to the present invention;

[0028] Figure 6 This is a top view of the upper layer of a fluororubber sealing ring for rotary sealing according to the present invention;

[0029] Figure 7 The present invention is a three-dimensional structure diagram of a fluororubber sealing ring for rotary sealing, viewed from above and in cross section from below.

[0030] In the figure: 1. outer ring; 2. hole groove; 3. upper horizontal channel; 4. lower horizontal channel; 5. positioning socket; 6. inner ring; 7. partition; 8. vertical channel; 9. inner horizontal channel; 10. semicircular limit block; 11. upper plate; 12. upper assembly component; 121. top plate; 122. lower pressure member; 123. connecting column; 124. spring; 125. limit circular groove; 13. concave and convex surface; 14. concave surface; 15. positioning pin. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-7The present invention provides a technical solution: a fluororubber sealing ring for rotary sealing, comprising an outer ring 1, an inner ring 6 and an upper assembly component 12, a plurality of holes 2 are evenly distributed on the support surface of the outer ring 1, the spacing between two adjacent holes 2 is the same, the inside of the holes 2 is vacuum, which is conducive to blocking heat conduction and increasing elasticity to provide extrusion resilience of the rotary seal, the support surface of the outer ring 1 is divided into two layers from top to bottom, the upper and lower layers of the support surface of the outer ring 1 are respectively penetrated inside and outside to open a plurality of upper transverse channels 3 and a plurality of lower transverse channels 4, and each group of upper transverse channels 3 and lower transverse channels 4 are distributed along the radial direction of the outer ring 1, a plurality of positioning sockets 5 are installed on the inner end surface of the outer ring 1, and the inner ring 6 is provided with a plurality of positioning sockets 5 through the positioning sockets 5 is assembled and assembled on the annular inner side of the outer ring 1, the supporting surface of the inner ring 6 is grooved with an annular groove, the middle part of the annular groove is integrally formed with a partition plate 7, the upper part of the partition plate 7 and the annular groove are filled with storage lubricant, a plurality of vertical channels 8 are penetrated from top to bottom on the end surface of the partition plate 7, the upper and lower ends of each vertical channel 8 are respectively connected with the corresponding upper transverse channel 3 and lower transverse channel 4, the top surface of the partition plate 7 is penetrated with an inner transverse channel 9 communicating with the upper part of the vertical channel 8 near the inner side opening, a plurality of semicircular stop blocks 10 are integrally formed on the top surface of the partition plate 7, an upper plate 11 is integrally formed on the upper part of the outer end of the inner ring 6, and the inner ring 6, the partition plate 7, the plurality of semicircular stop blocks 10 and the upper plate 11 are made of an integrally formed rubber material;

[0033] The upper assembly component 12 is installed on the upper part of the upper plate 11, and the upper assembly component 12 includes:

[0034] Top plate 121;

[0035] The pressing member 122 is installed at the lower part of the top plate 121 and is in contact with the inner part of the annular groove on the upper part of the support surface of the inner ring 6 to be fixedly connected with the upper and lower guide limiter;

[0036] A connecting column 123 is installed between the top plate 121 and the pressing member 122;

[0037] The spring 124 is installed between the upper plate 11 and the top plate 121, and can be assembled during the assembly stage by utilizing its elasticity;

[0038] The outer part of the top plate 121 is matched with the installation slip ring. In the assembly stage, the top plate 121 of the upper assembly component 12 and the installation surface of the slip ring are pressed and installed, and external force is applied to limit the combination of the lower pressing member 122 in the upper half of the partition 7 in the annular groove through the limiting circular groove 125 and the semicircular limiting block 10, so that the lubricant filled and stored in the annular groove is squeezed inward and outward through the vertical channel 8, the upper horizontal channel 3, the lower horizontal channel 4 and the inner horizontal channel 9, so that the lubricant is immersed in the outer surface of the outer ring 1 and the inner surface of the inner ring 6, thereby reducing the wear degree of the assembled rotating sealing ring;

[0039] The pressing member 122 is composed of a horizontal plate, an outer arc plate and an inner arc plate. The outer arc plate and the inner arc plate are integrally formed on the inner and outer sides of the horizontal plate respectively. The horizontal plate, the outer arc plate and the inner arc plate all adopt an annular structure. The pressing member 122 is made of fluororubber material.

[0040] A plurality of limiting circular grooves 125 are formed on the end surface of the horizontal plate of the pressing member 122, and the limiting circular grooves 125 and the semicircular limiting blocks 10 are connected in a one-to-one limiting and damping manner.

[0041] The inner end surface of the inner ring 6 is provided with a concave-convex surface 13, which plays the role of storing a small amount of lubricant, so as to achieve the oil sealing effect of the external sliding ring connected to the inner side of the inner ring 6;

[0042] The outer end surface of the outer ring 1 is provided with a plurality of concave surfaces 14, which play the role of storing a small amount of lubricant, so as to achieve the oil sealing effect of the external sliding ring connected to the outer side of the outer ring 1;

[0043] The outer end surface of the inner ring 6 is integrally formed with a positioning pin 15 in the radial direction. A plurality of positioning pins 15 are installed and are plugged and fixed with the positioning sockets 5 one by one, so as to realize the positioning and assembly of the outer ring 1 and the inner ring 6, and constitute the rotary seal ring body of the present invention;

[0044] The inner ring 6 is radially opened up and down with channels communicating with the upper transverse channel 3 and the lower transverse channel 4;

[0045] The upper plate 11 and the top plate 121 both adopt an annular structure design, which conforms to the structural design of the sealing ring.

[0046] Working principle: When in use, the invention firstly uses the positioning pin 15 and the positioning socket 5 to quickly position and assemble the outer ring 1 and the inner ring 6 to form the rotary sealing ring of the invention, and then places the top plate 121 of the upper assembly component 12 on the mounting surface of the slip ring. At this time, an external force is applied to press the outer ring 1, and the lower pressure member 122 is combined in the upper half of the partition 7 in the annular groove through the limiting circular groove 125 and the semicircular limiting block 10, so that the lubricant filled and stored in the annular groove is squeezed inward and outward through the vertical channel 8, the upper horizontal channel 3, the lower horizontal channel 4 and the inner horizontal channel 9, so that the lubricant is immersed in the outer surface of the outer ring 1 and the inner surface of the inner ring 6, ensuring the compatibility of the sealing ring and the lubricant, and the concave surface 14 on the outer surface of the outer ring 1 and the concave-convex surface 13 on the inner surface of the inner ring 6 can play the role of storing a small amount of lubricant, thereby achieving the oil seal effect of the external slip ring connected to the outer side of the outer ring 1 and the inner side of the inner ring 6.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluororubber sealing ring for rotary sealing, comprising an outer ring (1), an inner ring (6) and an upper assembly component (12), characterized in that: The support surface of the outer ring (1) is evenly distributed with a plurality of hole grooves (2), the interior of the hole grooves (2) is vacuum, the support surface of the outer ring (1) is divided into two layers, the upper and lower layers of the support surface of the outer ring (1) are respectively provided with a plurality of upper transverse channels (3) and a plurality of lower transverse channels (4), the inner end surface of the outer ring (1) is provided with a plurality of positioning sockets (5), the inner ring (6) is arranged on the inner side of the outer ring (1), the support surface of the inner ring (6) is provided with an annular groove, and the middle part of the annular groove is provided with a A partition (7) is arranged, a lubricant is arranged on the upper part of the partition (7) and in the annular groove, a plurality of vertical channels (8) are arranged on the end surface of the partition (7), the upper and lower ends of each vertical channel (8) are respectively connected to the corresponding upper transverse channel (3) and lower transverse channel (4), an inner transverse channel (9) is arranged on the top surface of the partition (7) and is connected to the vertical channel (8), a plurality of semicircular limit blocks (10) are arranged on the top surface of the partition (7), and an upper plate (11) is arranged on the upper part of the outer end of the inner ring (6); The upper assembly component (12) is arranged on the upper part of the upper plate (11), and the upper assembly component (12) comprises: Top plate (121); A pressing member (122) is arranged at the lower part of the top plate (121) and is arranged in contact with the inner part of the annular groove on the upper part of the support surface of the inner ring (6); A connecting column (123) is arranged between the top plate (121) and the pressing member (122); The spring (124) is arranged between the upper plate (11) and the top plate (121).

2. A fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The outside of the top plate (121) is matched with a slip ring.

3. A fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The pressing member (122) is composed of a transverse plate, an outer arc plate and an inner arc plate. The outer arc plate and the inner arc plate are respectively arranged on the inner and outer sides of the transverse plate. The transverse plate, the outer arc plate and the inner arc plate all adopt an annular structure.

4. A fluororubber sealing ring for rotary sealing according to claim 3, characterized in that: The end surface of the transverse plate of the pressing member (122) is provided with a plurality of circular limiting grooves (125), and the circular limiting grooves (125) and the semicircular limiting blocks (10) are arranged in a one-to-one correspondence.

5. The fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The inner end surface of the inner ring (6) is provided with a concave-convex surface (13).

6. The fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The outer end surface of the outer ring (1) is provided with a plurality of concave surfaces (14).

7. The fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The outer end surface of the inner ring (6) is provided with a positioning pin (15) along the radial direction, and a plurality of the positioning pins (15) are provided and are arranged in one-to-one correspondence with the positioning sockets (5).

8. The fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The inner ring (6) is provided with channels in radial direction up and down, which channels are connected with the upper transverse channel (3) and the lower transverse channel (4).

9. The fluororubber sealing ring for rotary sealing according to claim 1, characterized in that: The upper plate (11) and the top plate (121) both adopt an annular structure design.

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