CN214036880U - Mechanical seal structure easy to disassemble and assemble and maintain - Google Patents
Mechanical seal structure easy to disassemble and assemble and maintain Download PDFInfo
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- CN214036880U CN214036880U CN202022804900.5U CN202022804900U CN214036880U CN 214036880 U CN214036880 U CN 214036880U CN 202022804900 U CN202022804900 U CN 202022804900U CN 214036880 U CN214036880 U CN 214036880U
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Abstract
The utility model discloses a mechanical seal structure that easy dismouting was maintained relates to the mechanical seal field, and this structure dismouting of being convenient for can the dynamics that compresses tightly of regulating spring simultaneously, effectively solves the problem that proposes in the background art. First rotating ring and the second rotating ring of setting about locating on the transmission shaft including the cover, first rotating ring right side and second rotating ring left side are equipped with the spring cassette respectively, and the common cover has been provided with horizontal first spring on the spring cassette, and the conflict normal running fit of second rotating ring right flank and quiet ring left surface is equipped with the adjusting part to first rotating ring spacing and can adjust first spring and compress tightly the dynamics between first rotating ring and the transmission shaft, adjusting part has inlayed axial bar recess including locating the round pin axle that elasticity inwards compressed tightly on the first rotating ring on the transmission shaft, has inlayed in the bar recess and has sold the axle complex draw-in groove. The utility model has simple structure and convenient use, and is suitable for various places.
Description
Technical Field
The utility model relates to a mechanical seal field specifically is a mechanical seal structure that easy dismouting was maintained.
Background
With the progress of science and technology and the development of society, the mechanical industry of China is rapidly developed, and the rapid development of mechanical sealing devices follows. The existing mechanical sealing device relates to a spring mechanical seal, as shown in fig. 2, including the first rotating ring 2 and the second rotating ring 4 that the cover located the epaxial left and right sides setting of transmission shaft 1, the 2 outer peripheral face equipartitions of first rotating ring have a plurality of with transmission shaft 1 complex fastening bolt 6, 2 right sides of first rotating ring and second rotating ring 4 left sides are equipped with spring cassette 20 respectively, the common cover has put horizontal first spring 3 on the spring cassette 20, the 4 right flank of second rotating ring is contradicted with quiet ring 5 left surface and is rotated the cooperation, annular groove 41 has been inlayed to the 4 internal surfaces of second rotating ring, first O type sealing washer 42 has been inlayed in annular groove 41, quiet ring 5 outside cover has been provided with second O type sealing washer 51.
The mechanical sealing device with the structure can play a role in sealing. However, the first movable ring is connected with the transmission shaft through the fastening bolt, and is corroded by liquid, so that the first movable ring is troublesome to disassemble; and the second rotating ring receives the pressure dynamics of spring after wearing and tearing diminish and appear the seepage easily. The mechanical sealing device is not provided with a structure which can adjust the compression force of the spring and is convenient to disassemble, assemble and maintain.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a mechanical seal structure that easy dismouting was maintained, this structure dismouting of being convenient for, the dynamics that compresses tightly that can adjust spring simultaneously effectively solves the problem that proposes in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mechanical seal structure that easy dismouting was maintained, locate the epaxial first rotating ring and the second rotating ring that sets up about of transmission including the cover, first rotating ring outer peripheral face equipartition has a plurality ofly and transmission shaft complex fastening bolt, first rotating ring right side and second rotating ring left side are equipped with the spring cassette respectively, horizontal first spring has been put to common cover on the spring cassette, the second rotating ring right flank is contradicted normal running fit with quiet ring left surface, the annular groove has been inlayed to second rotating ring internal surface, first O type sealing washer has been inlayed in the annular groove, quiet ring outside cover is provided with second O type sealing washer, its characterized in that: an adjusting component which limits the first rotating ring and can adjust the compression force of the first spring is arranged between the first rotating ring and the transmission shaft, the adjusting component comprises a pin shaft which is arranged on the first rotating ring and elastically compressed inwards, an axial strip-shaped groove is embedded in the transmission shaft, and a clamping groove matched with the pin shaft is embedded in the strip-shaped groove;
a third movable ring is fixedly arranged on the transmission shaft on the left side of the strip-shaped groove, and an emergency limiting structure is arranged between the third movable ring and the first movable ring.
The utility model adopts the above technical scheme afterwards, can play limiting displacement to first rotating ring through the cooperation of round pin axle and draw-in groove, and can adjust the position right, thereby do benefit to the dynamics that compresses tightly of regulation to first spring, guarantee to last to play the extrusion to the second rotating ring, emergent limit structure's effect lies in, when round pin axle and draw-in groove cooperation damage, first rotating ring can carry on spacingly through emergent limit structure, make first spring can also keep certain extrusion pressure degree to the second rotating ring, avoid round pin axle damage equipment problem that can not work, reduce the loss of enterprise.
As the preferred technical scheme, triangular clamping blocks are arranged at the bottom of the pin shaft, and the clamping grooves are in a zigzag shape arranged left and right.
The utility model adopts the above technical scheme afterwards, then can be through the draw-in groove cooperation of fixture block with different positions to play limiting displacement to first rotating ring.
As the preferred technical scheme, the round pin of fixture block upside is fixed and is equipped with annular stopper, and the stopper slides from top to bottom and locates in the cylindrical cavity of under shed, and the epaxial cover of round pin of stopper upside has put the second spring, and the cavity upside is linked together with vertical through-hole, and the round pin stretches out and the upper end is equipped with the pull ring from the through-hole upside.
The utility model adopts the above technical scheme afterwards, the second spring plays the effect that compresses tightly downwards to the fixture block, and the pull ring is convenient for pull the fixture block to the lift, is convenient for adjust fixed position.
As a preferred technical scheme, the adjusting assemblies are two groups and are arranged in an up-and-down symmetrical mode.
The utility model adopts the above technical scheme afterwards, can play limiting displacement to first rotating ring from two upper and lower positions respectively, do benefit to and increase spacing effect.
As the preferred technical scheme, a cover plate is arranged at the joint of the pull ring and the pin shaft, and a rubber layer is bonded on the outer surface of the cover plate.
The utility model adopts the above technical scheme after, apron and rubber layer can play sealed effect to the through-hole, avoid outside liquid to flow into the cavity and cause the corruption to the second spring.
As an optimized technical scheme, the side face of the limiting block is in close sliding fit with the inner surface of the cavity.
The utility model adopts the above technical scheme after, can prevent that liquid from flowing into the cavity from the downside, play the guard action to the second spring.
As the preferred technical scheme, the emergency limiting structure comprises a third movable ring fixed on a transmission shaft on the left side of the strip-shaped groove, cylindrical grooves are embedded in the right side face of the third movable ring in an up-down symmetrical mode, and cylindrical bosses matched with the cylindrical grooves are fixedly arranged on the left side face of the first movable ring in an up-down symmetrical mode.
The utility model adopts the above technical scheme afterwards, when round pin axle and draw-in groove broke down and lose limiting displacement, first rotating ring slided left, then can play limiting displacement to first rotating ring through the cooperation of cylindricality recess and cylindricality boss.
Preferably, the length of the first spring in the natural state is greater than the distance between the third movable ring and the second movable ring.
The utility model adopts the above technical scheme afterwards, when round pin axle and draw-in groove broke down and lose limiting displacement, can guarantee that first spring has the effect of compressing tightly to the second rotating ring.
As an optimal technical scheme, the clamping block is of a right-angled triangle structure, the left side and the outer side are right-angled sides, the other side is a bevel side, and each clamping groove is of a right-angled triangle structure matched with the clamping block.
The utility model adopts the above technical scheme after, can directly promote first rotating ring right, can be spacing after loosening the hand.
As the preferred technical scheme, the pull ring is made of stainless steel materials.
The utility model adopts the above technical scheme after, stainless steel material can play corrosion-resistant effect.
Compared with the prior art, the utility model provides a mechanical seal structure that easy dismouting was maintained possesses following beneficial effect:
1. the utility model discloses a round pin axle can play limiting displacement to first rotating ring with the cooperation of draw-in groove, and can remove right, adjusts the dynamics that compresses tightly to first spring to what can last plays the effect that compresses tightly to the second rotating ring, outwards stimulate the pull ring simultaneously and can remove spacingly, the dismouting of being convenient for is maintained.
2. The utility model discloses an emergent limit structure's setting, when round pin axle and draw-in groove break down and lose the restriction to first rotating ring, the third rotating ring can play emergent stopping and limiting displacement in the left side, avoids the problem of the unable normal work of equipment.
3. The utility model discloses a setting of apron, stopper can be respectively from inside and outside both sides to the second spring play the guard action, avoids the erosion of liquid.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic structural view of a prior art mechanical seal device;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 4 is a left side view structural diagram of the rotating shaft and the first rotating ring.
The following are marked in the figure: 1. a drive shaft; 11. a chute; 111. a card slot; 2. a first rotating ring; 20. a spring clamp seat; 21. a cavity; 22. a pin shaft; 221. a pull ring; 222. a clamping block; 223. a limiting block; 224. a cover plate; 23. a second spring; 24. a through hole; 25. a cylindrical boss; 3. a first spring; 4. a second rotating ring; 41. an annular groove; 42. a first O-ring seal; 5. a stationary ring; 51. a second O-ring seal; 6. fastening a bolt; 7. a third rotating ring; 71. a cylindrical recess.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 3 and 4, a mechanical seal structure easy to assemble, disassemble and maintain comprises a first movable ring 2 and a second movable ring 4 which are sleeved on a transmission shaft 1 and arranged on the left and right, the right side of the first movable ring 2 and the left side of the second movable ring 4 are respectively provided with a spring clamping seat 20, a transverse first spring 3 is sleeved on the spring clamping seat 20, the right side of the second movable ring 4 is in interference fit with the left side of a stationary ring 5, an annular groove 41 is embedded in the inner surface of the second movable ring 4, a first O-shaped sealing ring 42 is embedded in the annular groove 41, a second O-shaped sealing ring 51 is sleeved on the outer side of the stationary ring 5, an adjusting component which limits the first movable ring 2 and can adjust the compression force of the first spring 3 is arranged between the first movable ring 2 and the transmission shaft 1, the adjusting component comprises a pin 22 which is arranged on the first movable ring 2 and elastically compressed inwards, an axial strip-shaped groove 11 is embedded on the transmission shaft 1, the bottom surface of the strip-shaped groove 11 is embedded with a clamping groove 111 (arranged left and right) matched with the pin shaft 22. A third movable ring 7 is fixedly arranged on the transmission shaft 1 on the left side of the strip-shaped groove 11, and an emergency limiting structure is arranged between the third movable ring 7 and the first movable ring 2. Can play limiting displacement to first rotating ring 2 through the cooperation of round pin axle 22 with draw-in groove 111, and can adjust the position right, thereby do benefit to the dynamics that compresses tightly to first spring 3 of regulation, guarantee to last to play the extrusion to second rotating ring 4, emergent limit structure's effect lies in, when round pin axle 22 damages with draw-in groove 111 cooperation, first rotating ring 2 can carry on spacingly through emergent limit structure, make first spring 3 can also keep certain extrusion dynamics to second rotating ring 4, avoid round pin axle 22 to damage the problem that equipment can not work, reduce the loss of enterprise.
In the above embodiment, specifically, the bottom of the pin 22 is provided with a triangular latch 222 (see fig. 3), and the latch groove 111 is in a zigzag shape arranged left and right. The fixture blocks 222 can be matched with the fixture grooves 111 at different positions, so that the first movable ring 2 is limited. An annular limiting block 223 is fixedly arranged on the pin shaft 22 on the upper side of the clamping block 222, the limiting block 223 is arranged in the cavity 21 with the cylindrical lower opening in a vertical sliding mode, the second spring 23 is sleeved on the pin shaft 22 on the upper side of the limiting block 223, the upper side of the cavity 21 is communicated with the vertical through hole 24, the pin shaft 22 extends out of the upper side of the through hole 24, and a pull ring 221 is arranged at the upper end of the pin shaft 22. The second spring 23 presses the latch 222 downward, and the pull ring 221 facilitates to pull the latch 222 upward, thereby facilitating to adjust the fixing position.
In the above embodiment, it is specific, the adjusting parts are two sets of, and the longitudinal symmetry sets up, can play limiting displacement to first rotating ring 2 from two upper and lower positions respectively, does benefit to increase spacing effect. The connection between the pull ring 221 and the pin 22 is provided with a cover plate 224, a rubber layer (not shown) is bonded on the outer surface of the cover plate 224, and the cover plate 224 and the rubber layer can seal the through hole 24, so as to prevent the outside liquid from flowing into the cavity 21 and corroding the second spring 23. The side surface of the limit block 223 is closely matched with the inner surface of the cavity 21 in a sliding manner, so that liquid can be prevented from flowing into the cavity 21 from the lower side, and the second spring 23 is protected.
In the above embodiment, specifically, the emergency limit structure includes the third rotating ring 7 fixed on the transmission shaft 1 on the left side of the strip-shaped groove 11, the cylindrical grooves 71 are embedded in the right side face of the third rotating ring 7 in an up-down symmetrical manner, and the cylindrical bosses 25 matched with the cylindrical grooves 71 are fixedly arranged on the left side face of the first rotating ring 2 in an up-down symmetrical manner. When the pin 22 and the slot 111 fail and lose the limiting function, the first moving ring 2 slides leftwards, and the first moving ring 2 can be limited by the matching of the cylindrical groove 71 and the cylindrical boss 25. The length of the first spring 3 in a natural state is greater than the distance between the third movable ring 7 and the second movable ring 4, and when the pin shaft 22 and the clamping groove 111 break down and lose the limiting function, the first spring 3 can be guaranteed to have a pressing effect on the second movable ring 4.
In the above embodiment, more specifically, the fixture block 222 is in a right triangle structure, the left side and the outer side are right-angled sides, the other side is a hypotenuse, and each of the clamping grooves 111 is in a right triangle structure matched with the fixture block 222. The first movable ring 2 can be directly pushed rightwards, and the position can be limited after the hand is released. The pull ring 221 is made of stainless steel, and the stainless steel can resist corrosion.
The working principle is as follows: through the cooperation of round pin axle 22 with draw-in groove 111, can play limiting displacement to first rotating ring 2, and can move right, adjust the dynamics of compressing tightly to first spring 3 to what can last plays the effect of compressing tightly to second rotating ring 4, outwards stimulate pull ring 221 simultaneously and can relieve spacingly, the dismouting of being convenient for is maintained. Through the setting of emergent limit structure, when round pin axle 22 and draw-in groove 111 break down and lose the restriction to first rotating ring 2, third rotating ring 4 can play the emergency on the left side and stop and limiting displacement, avoids the unable problem of normal work of equipment. Through the arrangement of the cover plate 224 and the limiting block 223, the second spring 23 can be protected from the inner side and the outer side respectively, and liquid erosion is avoided.
The components used in the present invention are all common standard components or components known to those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a mechanical seal structure that easy dismouting was maintained, locate the epaxial first rotating ring and the second rotating ring that sets up about of transmission including the cover, first rotating ring outer peripheral face equipartition has a plurality ofly and transmission shaft complex fastening bolt, first rotating ring right side and second rotating ring left side are equipped with the spring cassette respectively, horizontal first spring has been put to common cover on the spring cassette, the second rotating ring right flank is contradicted normal running fit with quiet ring left surface, the annular groove has been inlayed to second rotating ring internal surface, first O type sealing washer has been inlayed in the annular groove, quiet ring outside cover is provided with second O type sealing washer, its characterized in that: an adjusting component which limits the first rotating ring and can adjust the compression force of the first spring is arranged between the first rotating ring and the transmission shaft, the adjusting component comprises a pin shaft which is arranged on the first rotating ring and elastically compressed inwards, an axial strip-shaped groove is embedded in the transmission shaft, and a clamping groove matched with the pin shaft is embedded in the strip-shaped groove;
a third movable ring is fixedly arranged on the transmission shaft on the left side of the strip-shaped groove, and an emergency limiting structure is arranged between the third movable ring and the first movable ring.
2. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 1, characterized in that: the bottom of the pin shaft is provided with a triangular clamping block, and the clamping groove is in a zigzag shape arranged from left to right.
3. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 2, characterized in that: the round pin epaxial fixed annular stopper that is equipped with of fixture block upside slides from top to bottom and locates in the columniform cavity of under shed, and the epaxial cover of round pin of stopper upside has put the second spring, and the cavity upside is linked together with vertical through-hole, and the round pin axle stretches out and the upper end is equipped with the pull ring from the through-hole upside.
4. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 1, characterized in that: the adjusting components are arranged in two groups and are arranged in an up-and-down symmetrical mode.
5. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 3, characterized in that: the joint of the pull ring and the pin shaft is provided with a cover plate, and the outer surface of the cover plate is bonded with a rubber layer.
6. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 3, characterized in that: the side surface of the limiting block is in close sliding fit with the inner surface of the cavity.
7. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 1, characterized in that: emergent limit structure is including being fixed in the third rotating ring on the bar recess left side transmission shaft, and the cylindricality recess has been inlayed to third rotating ring right flank longitudinal symmetry, and first rotating ring left surface is fixed from top to bottom be equipped with cylindricality boss of cylindricality recess complex.
8. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 1, characterized in that: the length of the first spring in a natural state is greater than the distance between the third movable ring and the second movable ring.
9. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 2, characterized in that: the fixture block is in a right-angled triangle structure, the left side and the outer side are right-angled sides, the other side is a bevel side, and each clamping groove is in a right-angled triangle structure matched with the fixture block.
10. The mechanical seal structure easy to assemble, disassemble and maintain according to claim 3, characterized in that: the pull ring is made of stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022804900.5U CN214036880U (en) | 2020-11-29 | 2020-11-29 | Mechanical seal structure easy to disassemble and assemble and maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022804900.5U CN214036880U (en) | 2020-11-29 | 2020-11-29 | Mechanical seal structure easy to disassemble and assemble and maintain |
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| Publication Number | Publication Date |
|---|---|
| CN214036880U true CN214036880U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022804900.5U Active CN214036880U (en) | 2020-11-29 | 2020-11-29 | Mechanical seal structure easy to disassemble and assemble and maintain |
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| CN (1) | CN214036880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145972A (en) * | 2023-11-01 | 2023-12-01 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
-
2020
- 2020-11-29 CN CN202022804900.5U patent/CN214036880U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145972A (en) * | 2023-11-01 | 2023-12-01 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
| CN117145972B (en) * | 2023-11-01 | 2024-01-02 | 自贡市川密机械密封件有限公司 | Mechanical sealing device with adjustable sealing pressure |
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