CN217152970U

CN217152970U - High-temperature-resistant mechanical seal

Info

Publication number: CN217152970U
Application number: CN202220874182.5U
Authority: CN
Inventors: 史海洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-09
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a high temperature resistant mechanical seal, which belongs to the technical field of mechanical seal and comprises a sealing cover, a spring barrel, a shaft sleeve and a connecting sleeve, wherein the outer part of the shaft sleeve is fixedly sleeved with a heat dissipation sleeve which is of a hollow circular ring structure, heat dissipation fins are distributed on the outer wall of the heat dissipation sleeve, one end of the shaft sleeve is detachably connected with the connecting sleeve, and the other end of the shaft sleeve is detachably connected with the sealing cover; the sealing cover, the shaft sleeve and the connecting sleeve are all internally provided with holes for the transmission shaft of the motor to pass through, the outer wall of the shaft sleeve is further welded with a connecting plate, the connecting plate is of a disc-shaped structure, and connecting bolts connected with the sealing cover are distributed on the outer wall in an array mode. One end of the spring cylinder is connected with the sealing cover, the other end of the spring cylinder is connected with the connecting plate, and the spring cylinder is sleeved outside the shaft sleeve. And a sealing sleeve is embedded into one end of the shaft sleeve, which faces the sealing cover. This high temperature resistant mechanical seal promotes mechanical seal's radiating effect, satisfies the operation demand under the high temperature environment.

Description

High-temperature-resistant mechanical seal

Technical Field

The utility model belongs to the technical field of mechanical seal, especially, relate to a high temperature resistant mechanical seal.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by keeping at least one end surface perpendicular to the axis of the rotating shaft in fit and relative sliding under the action of fluid pressure and the elastic force of the compensating mechanism and the matching of the auxiliary seal. For example, in equipment such as a centrifugal pump, a centrifugal machine, a reaction kettle, a compressor and the like, a circumferential gap exists between a rotating shaft and the equipment as the rotating shaft penetrates through the inside and the outside of the equipment; when the rotating shaft rotates relative to the equipment, the medium inside the equipment can leak outwards through the circumferential gap; if the pressure inside the apparatus is lower than atmospheric pressure, air will flow into the apparatus and a sealing means against leakage is necessary.

At present, all can seal the transmission axle of motor under the operational environment of easy sputter liquid to avoid liquid to advance the motor inside from transmission axle sputtering and cause the harm to the motor, current motor transmission axle avoids liquid to get into the connected mode that adopts the axle sleeve to seal, but owing to there is not the clearance heat dissipation, make the unable timely emanation of heat in the transmission axle work, and because the heat conductivity of metal is good, so can cause the influence to the inside part of motor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, motor transmission axle adopts the sealed connected mode of axle sleeve in order to avoid liquid to get into, but owing to there is not clearance heat dissipation for the heat in the transmission axle work can't be timely gives off, and because the heat conductivity of metal is good, so can cause the problem of influence to the inside part of motor, and the high temperature resistant mechanical seal who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-temperature-resistant mechanical seal comprises a seal cover, a spring barrel, a shaft sleeve and a connecting sleeve, wherein a heat dissipation sleeve is fixedly sleeved outside the shaft sleeve and is of a hollow circular ring structure, heat dissipation fins are distributed on the outer wall of the heat dissipation sleeve, one end of the shaft sleeve is detachably connected with the connecting sleeve, and the other end of the shaft sleeve is detachably connected with the seal cover;

the sealing cover, the shaft sleeve and the connecting sleeve are all internally provided with holes for the transmission shaft of the motor to pass through, the outer wall of the shaft sleeve is further welded with a connecting plate, the connecting plate is of a disc-shaped structure, and connecting bolts connected with the sealing cover are distributed on the outer wall in an array mode.

Benefit from the cooperation of being connected of axle sleeve and heat dissipation cover to make the heat that the transmission axle produced when the operation by quick absorption give off, and then avoid mechanical parts to be difficult to volatilize the condition that leads to the temperature to improve when the operation because of the heat.

Preferably, one end of the spring cylinder is connected with the sealing cover, the other end of the spring cylinder is connected with the connecting plate, and the spring cylinder is sleeved outside the shaft sleeve.

The spring cylinder is arranged, so that the sealing cover and the shaft sleeve are connected with a tensile force, and the effect of reducing vibration transmission can be achieved.

Preferably, the shaft sleeve is embedded into one end, facing the sealing cover, of the shaft sleeve, and the outer circular surface of the sealing sleeve is attached to the inner circular surface of the shaft sleeve.

The tightness of the mechanical seal is improved due to the arrangement of the sealing sleeve.

Preferably, the outer wall of the shaft sleeve is provided with a plurality of heat-conducting columns corresponding to the heat dissipation sleeve, the heat-conducting columns are distributed outside the shaft sleeve in a fan-shaped surrounding mode, and the heat-conducting columns penetrate through the inner wall of the heat dissipation sleeve and are connected with the heat dissipation fins.

Benefit from the setting of heat conduction column and make the heat of axle sleeve adsorbed fast, effectively promote the efficiency that the heat gived off.

Preferably, the outer wall of the sealing cover is convexly welded with an installation block, and the inside of the installation block is in threaded connection with the connecting bolt.

Benefit from the setting of installation piece for sealed lid can correspond with the connecting plate and be connected, and then can satisfy axle sleeve quick assembly disassembly's function.

Preferably, the outer wall of the connecting sleeve is further welded with a connecting disc with a disc-shaped structure, and a motor connecting hole is formed in the connecting disc.

Benefit from the setting of connection pad for the adapter sleeve can be installed with the motor, and then installs whole seal structure.

Preferably, one end, facing the spring barrel, of the sealing cover is provided with a first mounting groove, corresponding to the spring barrel, of an annular structure, and one end, facing the spring, of the connecting plate is provided with a second mounting groove, corresponding to the spring barrel, of the annular structure.

Benefit from the setting of first mounting groove, second mounting groove for the both ends of spring case can the embedding installation, and then promote the installation stability of spring case.

To sum up, the utility model discloses a technological effect and advantage: this high temperature resistant mechanical seal, through sealed lid, the quick split cooperation of axle sleeve and adapter sleeve, can seal fast between motor and the transmission week, promote the operating efficiency, the cooperation of being connected through axle sleeve and heat dissipation cover makes the transmission axle the heat that produces when the operation by quick absorption give off, and then avoid mechanical parts to be difficult to volatilize the condition that leads to the temperature to improve because of the heat when the operation, thereby satisfy mechanical parts's power transmission operation, reduce the heat transfer speed between each mechanical parts, make the mechanical parts of metal material can satisfy the operation demand under the high temperature environment.

Drawings

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

FIG. 2 is a schematic view of a connection structure of a heat dissipation sleeve and a shaft sleeve;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is a schematic view of the mounting structure of the shaft sleeve and the spring cartridge.

In the figure: 1. a sealing cover; 2. sealing sleeves; 3. a spring case; 4. a connecting plate; 5. heat dissipation fins; 6. a shaft sleeve; 7. a connecting bolt; 8. a heat dissipation sleeve; 9. connecting sleeves; 10. a motor connecting hole; 11. a connecting disc; 12. a heat-conducting column; 13. a first mounting groove; 14. mounting blocks; 15. and a second mounting groove.

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.

Referring to fig. 1, the high temperature resistant mechanical seal comprises a seal cover 1, a spring barrel 3, a shaft sleeve 6 and a connecting sleeve 9, wherein a heat dissipation sleeve 8 is fixedly sleeved outside the shaft sleeve 6, the heat dissipation sleeve 8 is of a hollow circular ring structure, heat dissipation fins 5 are distributed on the outer wall of the heat dissipation sleeve 8, one end of the shaft sleeve 6 is detachably connected with the connecting sleeve 9, and the other end of the shaft sleeve 6 is detachably connected with the seal cover 1. The sealing cover 1, the shaft sleeve 6 and the connecting sleeve 9 are all internally provided with holes for the transmission shaft of the motor to pass through, the outer wall of the shaft sleeve 6 is welded with a connecting plate 4, the connecting plate 4 is of a disc-shaped structure, and connecting bolts 7 connected with the sealing cover 1 are distributed on the outer wall in an array mode.

Referring to fig. 1 and 4, one end of the spring cylinder 3 is connected to the sealing cover 1, the other end is connected to the connecting plate 4, and the spring cylinder 3 is sleeved outside the shaft sleeve 6. The one end embedding of axle sleeve 6 orientation sealed lid 1 is installed seal cover 2, and the interior disc of axle sleeve 6 is laminated to the excircle face of seal cover 2. The outer wall of the connecting sleeve 9 is also welded with a connecting disc 11 with a disc-shaped structure, and the connecting disc 11 is provided with a motor connecting hole 10. The sealing sleeve 2 is embedded inside the shaft sleeve 6, and lubricating oil is smeared on the outer wall and the inner wall of the sealing sleeve 2.

Referring to fig. 2, a plurality of heat-conducting columns 12 are arranged on the outer wall of the shaft sleeve 6 corresponding to the heat-radiating sleeve 8, the heat-conducting columns 12 are distributed outside the shaft sleeve 6 in a fan-shaped surrounding manner, and the heat-conducting columns 12 penetrate through the inner wall of the heat-radiating sleeve 8 and are connected with the heat-radiating fins 5. The heat that gives off is from axle sleeve 6 quick transmission to heat conduction post 12 department, is followed by radiating fin 5 and is given off fast, and heat conduction post 12 is the copper material.

Referring to fig. 3, a mounting block 14 is welded to the outer wall of the sealing cover 1 in a protruding manner, and the inside of the mounting block 14 is threadedly coupled to the coupling bolt 7. The mounting block 14 is aligned with the connecting bolt 7 on the connecting plate 4, and the connecting bolt 7 is then threaded through the mounting block 14.

Referring to fig. 3 and 4, one end of the sealing cover 1 facing the spring barrel 3 is provided with a first mounting groove 13 with an annular structure corresponding to the spring barrel 3, and one end of the connecting plate 4 facing the spring is provided with a second mounting groove 15 with an annular structure corresponding to the spring barrel 3. The two ends of the spring barrel 3 can be embedded and installed, and therefore the installation stability of the spring barrel 3 is improved.

The working principle is as follows: when the device is used, firstly, the device is in threaded connection with the output end of a motor through a motor connecting hole 10 on a connecting disc 11, a transmission shaft of the motor penetrates through a connecting sleeve 9, a shaft sleeve 6 and a sealing cover 1 from the inside of the motor, then, the shaft sleeve 6 is in threaded rotary connection with the connecting sleeve 9, after the shaft sleeve 6 is connected with the connecting sleeve 9, a spring cylinder 3 is sleeved outside the shaft sleeve 6, one end of the spring cylinder 3 is embedded into a second mounting groove 15, then, a sealing sleeve 2 is embedded into the shaft sleeve 6, lubricating oil is coated on the outer wall and the inner wall of the sealing sleeve 2, then, the sealing cover 1 moves towards the direction of the shaft sleeve 6, a first mounting groove 13 on the sealing cover 1 is in embedded connection with the other end of the spring cylinder 3, a mounting block 14 corresponds to a connecting bolt 7 on a connecting plate 4, then, the connecting bolt 7 penetrates through the mounting block 14 to be in threaded connection with the mounting block 14, at the moment, the sealing cover 1 supports the spring cylinder 3 tightly, the transmission shaft and the motor are sealed, so that liquid cannot enter the motor along the transmission shaft in the rotating process of the transmission shaft, and the motor shell is wrapped with waterproof materials, so that the motor can work in an environment where liquid is easy to splash;

at transmission axle pivoted operation in-process, the heat that gives off is followed axle sleeve 6 and is gone up quick transmission to 12 departments of heat conduction post, is carried out the rapid diffusion by heat dissipation wing 5 afterwards, plays radiating effect, and then makes the transmission axle when operating temperature is higher, also can adapt to, this high temperature resistant mechanical seal promotes mechanical seal's radiating effect, satisfies the operation demand under the high temperature environment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-temperature-resistant mechanical seal comprises a seal cover (1), a spring barrel (3), a shaft sleeve (6) and a connecting sleeve (9), and is characterized in that a heat dissipation sleeve (8) is fixedly sleeved outside the shaft sleeve (6), the heat dissipation sleeve (8) is of a hollow circular ring structure, heat dissipation fins (5) are distributed on the outer wall of the heat dissipation sleeve (8), one end of the shaft sleeve (6) is detachably connected with the connecting sleeve (9), and the other end of the shaft sleeve (6) is detachably connected with the seal cover (1);

the sealing cover is characterized in that holes for the transmission shaft of the power supply machine to penetrate are formed in the sealing cover (1), the shaft sleeve (6) and the connecting sleeve (9), the connecting plate (4) is welded to the outer wall of the shaft sleeve (6), the connecting plate (4) is of a disc-shaped structure, and connecting bolts (7) connected with the sealing cover (1) are distributed on the outer wall in an array mode.

2. The high-temperature-resistant mechanical seal as claimed in claim 1, wherein one end of the spring cylinder (3) is connected with the seal cover (1), the other end is connected with the connecting plate (4), and the spring cylinder (3) is sleeved outside the shaft sleeve (6).

3. The high-temperature-resistant mechanical seal as claimed in claim 1, wherein the gland (2) is embedded in one end of the shaft sleeve (6) facing the seal cover (1), and the outer circular surface of the gland (2) is attached to the inner circular surface of the shaft sleeve (6).

4. The high-temperature-resistant mechanical seal according to claim 1, wherein a plurality of heat-conducting pillars (12) are arranged on the outer wall of the shaft sleeve (6) corresponding to the heat dissipation sleeve (8), the plurality of heat-conducting pillars (12) are distributed on the outer portion of the shaft sleeve (6) in a fan-shaped surrounding manner, and the heat-conducting pillars (12) penetrate through the inner wall of the heat dissipation sleeve (8) and are connected with the heat dissipation fins (5).

5. The high-temperature-resistant mechanical seal as claimed in claim 1, characterized in that a mounting block (14) is convexly welded on the outer wall of the seal cover (1), and the inside of the mounting block (14) is in threaded connection with the connecting bolt (7).

6. The high-temperature-resistant mechanical seal as claimed in claim 1, wherein a connecting disc (11) with a disc-shaped structure is welded on the outer wall of the connecting sleeve (9), and a motor connecting hole (10) is arranged on the connecting disc (11).

7. The high-temperature-resistant mechanical seal as claimed in claim 1, wherein the end of the seal cover (1) facing the spring holder (3) is provided with a first mounting groove (13) having an annular structure corresponding to the spring holder (3), and the end of the connecting plate (4) facing the spring is provided with a second mounting groove (15) having an annular structure corresponding to the spring holder (3).