阅读说明：本技术 一种新型拌缸设备集装式双端面机封 (Novel mix jar equipment collection dress formula double-end face machine seal ) 是由 唐协兴 于 2019-11-13 设计创作，主要内容包括：本发明公开了一种新型拌缸设备集装式双端面机封,包括本体与轴套,两组所述轴套分别位于本体内侧壁,所述轴套左端底部设置有轴套密封套,所述轴套靠近左端上表面安装有动环防转销,所述动环防转销右侧设置有垫片,所述轴套上端靠近中间位置平行设置有两组静环防转销一。该双端面机封能够有效的防止强腐蚀、高温、带悬浮颗粒及纤维的介质、气体介质、易燃易爆介质、易挥发粘度低的介质、高真空、贵重物料及要求介质与空气隔绝内漏,减少在使用时产生的磨损,使用寿命长,具有更好的强度和刚度,不易被破坏。(The invention discloses a novel mixing cylinder equipment container type double-end face machine seal, which comprises a body and shaft sleeves, wherein two groups of shaft sleeves are respectively positioned on the inner side wall of the body, a shaft sleeve seal sleeve is arranged at the bottom of the left end of each shaft sleeve, a rotating ring anti-rotation pin is arranged on the upper surface, close to the left end, of each shaft sleeve, a gasket is arranged on the right side of each rotating ring anti-rotation pin, and two groups of first static ring anti-rotation pins are arranged on the upper end, close to the middle position. The double-end face machine seal can effectively prevent medium, gas medium, inflammable and explosive medium, volatile medium with low viscosity, high vacuum, valuable material and requirement medium from leaking in isolation with air, and has the advantages of strong corrosion, high temperature, suspended particles and fibers, long service life, better strength and rigidity and difficulty in being damaged.)

1. The utility model provides a novel mix jar equipment collection dress formula double-ended face machine seal, includes body (16) and axle sleeve (1), and is two sets of axle sleeve (1) is located body (16) inside wall, its characterized in that respectively: a shaft sleeve sealing sleeve (2) is arranged at the bottom of the left end of the shaft sleeve (1), a rotating ring anti-rotation pin (3) is arranged on the upper surface of the shaft sleeve (1) close to the left end, a gasket (4) is arranged on the right side of the rotating ring anti-rotation pin (3), two groups of first static ring anti-rotation pins (6) are arranged on the upper end of the shaft sleeve (1) close to the middle position in parallel, a spring seat (7) is arranged under the spring (32), a static ring (5) is arranged on the left side surface of the first static ring anti-rotation pin (6), an atmosphere static ring assembly (8) is arranged on the middle position of the upper end of the shaft sleeve (1), the spring (32) is connected between the first static ring anti-rotation pin (6) and the atmosphere static ring assembly (8), an atmosphere rotating ring (9) is arranged on the right side of the atmosphere static ring assembly (8), an atmosphere pushing ring (10) is arranged on the lower right corner of, a first cylindrical head screw (27) is arranged at the upper end of the positioning plate (26) close to the right side, a clamp spring (11) is arranged at the right side of the air push ring (10), a fastening ring (12) is arranged at the upper end of the shaft sleeve (1) close to the right side, and a hexagon head bolt (13) is arranged on the right side surface of the fastening ring (12);

rotating ring (15) are installed to axle sleeve (1) left end bottom, rotating ring sealing washer (14) are installed to rotating ring (15) upper end bilateral symmetry, be provided with quiet ring sealing washer (17) under axle sleeve (1), quiet ring sealing washer (17) right side is provided with protective sheath (18), protective sheath (18) right flank is provided with throw-out collar (19), throw-out collar (19) right side is provided with quiet ring stop pin two (20), quiet ring stop pin two (20) below is installed atmosphere quiet ring sealing washer (21), atmosphere quiet ring sealing washer (21) right side is provided with atmosphere rotating ring sealing washer (22), atmosphere rotating ring sealing washer (22) right side is provided with fastening screw (23).

2. The novel mix jar equipment cartridge-type two-sided mechanical seal of claim 1, characterized in that: the spring seat sealing structure is characterized in that a flange (30) is arranged at the end of the body (16), a spring seat seal (29) is installed below the flange (30), and a flange sealing ring (31) is arranged in the middle position where the flange (30) is connected with the body (16).

3. The novel mix jar equipment cartridge-type two-sided mechanical seal of claim 1, characterized in that: the lower surface of the right end of the shaft sleeve (1) is provided with a lower pressing plate (25), the bottom end of the lower pressing plate (25) is provided with an upper pressing plate (24), and the upper pressing plates (24) are symmetrically arranged on two sides of the bottom end of the lower pressing plate (25).

4. The novel mix jar equipment cartridge-type two-sided mechanical seal of claim 1, characterized in that: the two groups of shaft sleeves (1) are symmetrically arranged relative to the body (16).

5. The novel mix jar equipment cartridge-type two-sided mechanical seal of claim 1, characterized in that: a second cylindrical head screw (28) is arranged on the left side of the positioning plate (26), the second cylindrical head screw (28) is identical to the first cylindrical head screw (27) in specification, and threads are uniformly distributed at the left ends of the second cylindrical head screw (28) and the first cylindrical head screw (27).

Technical Field

The invention relates to the technical field of double-end-face machine seals, in particular to a novel mixing cylinder equipment container type double-end-face machine seal.

Background

The mechanical seal is a shaft seal device of a fluid rotating machine, and is mainly a device for preventing fluid leakage, which is formed by keeping fit and relative sliding of at least one pair of end faces perpendicular to a rotating axis under the action of fluid pressure and the elasticity (magnetic force) of a compensation mechanism and the cooperation of auxiliary seals;

the sealing method adopted by the existing cylinder stirring equipment used in the papermaking industry to prevent medium leakage is soft packing sealing, but the traditional sealing method has a plurality of defects: the sealing performance is insufficient, and the leakage amount of the medium can reach 180-450 mL/h; the power loss is serious in the friction process of the device, the device shaft is abraded, and the device needs to be maintained and replaced frequently; and the sealing requirements of high-pressure, high-temperature, high-vacuum, high-rotating-speed and large-diameter equipment cannot be met, and the high-efficiency industrial transformation of the traditional papermaking industry is seriously hindered. Therefore, the sealing mode in the prior art needs to be improved, and a novel cartridge type double-end-face machine seal of the mixing cylinder equipment needs to be developed.

Disclosure of Invention

The invention aims to provide a novel mixing cylinder equipment container type double-end-face machine seal, which aims to solve the problems that the sealing of a soft filler in the papermaking industry mentioned in the background art is easy to cause the leakage of harmful substances, wear, poor in strength and rigidity, easy to damage, short in service life and high in maintenance cost, and improve the sealing mode in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a novel mixing cylinder equipment container type double-ended face machine seal comprises a body and shaft sleeves, wherein two groups of shaft sleeves are respectively positioned on the inner side wall of the body, a shaft sleeve seal sleeve is arranged at the bottom of the left end of the shaft sleeve, a rotating ring anti-rotation pin is arranged on the upper surface of the shaft sleeve close to the left end, a gasket is arranged on the right side of the rotating ring anti-rotation pin, two groups of first static ring anti-rotation pins are arranged on the upper end of the shaft sleeve close to the middle position in parallel, a spring seat is arranged under the spring, a static ring is arranged on the left side surface of the first static ring anti-rotation pin, an atmosphere static ring assembly is arranged in the middle position of the upper end of the shaft sleeve, a spring is connected between the first static ring anti-rotation pins and the atmosphere static ring assembly, an atmosphere rotating ring is arranged on the right side of the atmosphere static ring assembly, an atmosphere push, a clamp spring is arranged on the right side of the atmosphere push ring, a fastening ring is arranged at the upper end of the shaft sleeve close to the right side, and a hexagon head bolt is arranged on the right side surface of the fastening ring;

the movable ring is installed to axle sleeve left end bottom, the movable ring sealing washer is installed to movable ring upper end bilateral symmetry, be provided with quiet ring seal under the axle sleeve, quiet ring seal right side is provided with the protective sheath, the protective sheath right flank is provided with the throw-out collar, the throw-out collar right side is provided with quiet ring anti-rotation pin two, quiet ring seal of atmosphere is installed to quiet ring anti-rotation pin two below, quiet ring seal right side of atmosphere is provided with big movable ring seal, big movable ring seal right side is provided with fastening screw.

Preferably, the end part of the body is provided with a flange, a spring base is installed below the flange for sealing, and a flange sealing ring is arranged at the middle position where the flange is connected with the body.

Preferably, the lower surface of the right end of the shaft sleeve is provided with a lower pressing plate, the bottom end of the lower pressing plate is provided with an upper pressing plate, and the two groups of upper pressing plates are symmetrically arranged on two sides of the bottom end of the lower pressing plate.

Preferably, the two sets of bushings are symmetrically arranged about the body.

Preferably, a second cylindrical head screw is arranged on the left side of the positioning plate, the second cylindrical head screw and the first cylindrical head screw are in the same specification, and threads are distributed on the left ends of the second cylindrical head screw and the first cylindrical head screw.

Compared with the prior art, the invention has the beneficial effects that: the double-end face machine seal is provided with the shaft sleeve seal sleeve, the static ring seal ring and the atmospheric dynamic ring seal ring, when the built-in type stress condition is better, the end face specific pressure is smaller, a liquid film is easy to form, and the cut end face specific pressure is increased along with the increase of the medium pressure, so that the whole sealing reliability is improved, strong corrosion, high temperature, a medium with suspended particles and fibers, a gas medium, a flammable and explosive medium, a medium with low volatile viscosity, high vacuum, a valuable material and requirement medium and air isolated inner leakage are effectively prevented, and the abrasion generated in use can be reduced by arranging the shaft sleeve on the inner side wall of the body;

the double-end face mechanical seal has the advantages that the movable ring and the static ring are arranged to replace the traditional packing, the double-end face mechanical seal is not easy to damage, in the later maintenance process, the ring surface can be used only by grinding, and the embedded compensation ring has better strength and rigidity than the integral graphite compensation ring and is not easy to damage;

this double-ended face machine seals is through being provided with the top board at the axle sleeve right-hand member, holding down plate and locating plate, through the distance of adjustment top board and holding down plate, can be fine inlay this double-ended face machine seals in mixing jar equipment, and stability is strong, and good sealing performance has, the medium leaks the leakage quantity and only is 1% that the wadding is sealed, the power loss only is 10 ~ 50% that the wadding is sealed among the device friction process, and to the nearly zero wear of equipment axle, has very long life, need not frequent change and maintenance, very strong industrial application value and development prospect have.

Drawings

FIG. 1 is a front view of the present invention.

Fig. 2 is a rear view of the present invention.

In the figure: 1. a shaft sleeve; 2. a sleeve sealing sleeve; 3. rotating-ring anti-rotation pins; 4. a gasket; 5. a stationary ring; 6. a first static ring anti-rotation pin; 7. a spring seat; 8. an atmospheric static ring assembly; 9. an atmospheric dynamic ring; 10. atmospheric push ring; 11. a clamp spring; 12. a fastening ring; 13. a hexagon head bolt; 14. a moving ring sealing ring; 15. a moving ring; 16. a body; 17. a stationary ring seal ring; 18. a protective sleeve; 19. a push ring; 20. a second static ring anti-rotation pin; 21. an atmospheric static ring seal ring; 22. an atmospheric dynamic ring seal ring; 23. fastening screws; 24. an upper pressure plate; 25. a lower pressing plate; 26. positioning a plate; 27. a first cylindrical head screw; 28. a second cylindrical head screw; 29. sealing the spring base; 30. a flange; 31. a flange seal ring; 32. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a novel mixing cylinder equipment container type double-ended face machine seal comprises a body 16 and shaft sleeves 1, wherein two groups of shaft sleeves 1 are respectively positioned on the inner side wall of the body 16, a shaft sleeve seal sleeve 2 is arranged at the bottom of the left end of the shaft sleeve 1, a rotating ring anti-rotation pin 3 is arranged on the upper surface of the shaft sleeve 1 close to the left end, a gasket 4 is arranged on the right side of the rotating ring anti-rotation pin 3, two groups of static ring anti-rotation pins 6 are arranged on the upper end of the shaft sleeve 1 close to the middle position in parallel, a spring seat 7 is arranged under the spring 32, a static ring 5 is arranged on the left side surface of the static ring anti-rotation pin 6, an atmosphere static ring assembly 8 is arranged at the middle position of the upper end of the shaft sleeve 1, the spring 32 is connected between the static ring anti-rotation pin 6 and the atmosphere static ring assembly 8, an atmosphere rotating ring 9 is arranged on the right side of the atmosphere static ring assembly 8, an, a clamp spring 11 is arranged on the right side of the atmosphere push ring 10, a fastening ring 12 is arranged on the upper end of the shaft sleeve 1 close to the right side, and a hexagon head bolt 13 is arranged on the right side face of the fastening ring 12;

rotating ring 15 is installed to 1 left end bottom of axle sleeve, rotating ring sealing washer 14 is installed to 15 upper end bilateral symmetry of rotating ring, be provided with quiet ring sealing washer 17 under the axle sleeve 1, quiet ring sealing washer 17 right side is provided with protective sheath 18, protective sheath 18 right flank is provided with throw-out collar 19, the 19 right side of throw-out collar is provided with quiet ring anti-rotation pin two 20, quiet ring anti-rotation pin two 20 below is installed the quiet ring sealing washer 21 of atmosphere, the quiet ring sealing washer 21 right side of atmosphere is provided with atmosphere rotating ring sealing washer 22, atmosphere rotating ring sealing washer 22 right side is provided with fastening screw 23.

The end of the body 16 is provided with a flange 30, a spring base seal 29 is arranged below the flange 30, and a flange seal ring 31 is arranged at the middle position where the flange 30 is connected with the body 16.

The lower surface of the right end of the shaft sleeve 1 is provided with a lower pressing plate 25, the bottom end of the lower pressing plate 25 is provided with an upper pressing plate 24, and the two groups of upper pressing plates 24 are symmetrically arranged on two sides of the bottom end of the lower pressing plate 25.

The two sets of bushings 1 are symmetrically arranged about the body 16.

A second cylindrical head screw 28 is arranged on the left side of the positioning plate 26, the second cylindrical head screw 28 and the first cylindrical head screw 27 are in the same specification, and threads are distributed on the left ends of the second cylindrical head screw 28 and the first cylindrical head screw 27.

The working principle is as follows: in order to solve the defects of soft packing sealing in the papermaking industry, the inventor creatively applies mechanical sealing to mixing cylinder equipment in the papermaking industry. However, how to overcome technical resistance in a specific application process, such as strong corrosivity, viscosity and volatility of equipment media, can affect the stability of a mechanical device, and is a great problem to be solved by the inventor. For the double-end face seal, firstly, an upper pressure plate 24, a lower pressure plate 25 and a positioning plate 26 are arranged at the right end of the shaft sleeve, the double-end face seal can be well embedded in the mixing cylinder device by adjusting the distance between the upper pressure plate 24 and the lower pressure plate 25, the stability is strong, secondly, as the medium in the device has strong corrosivity, is thick and volatile, double end faces are selected during model selection, the application range of the double end faces is wider, the double end faces are suitable for the medium with strong corrosion, high temperature, suspended particles and fibers, gas medium, inflammable and explosive medium, volatile medium with low viscosity, high vacuum, precious materials and medium required to be isolated from air and allow internal leakage, by arranging the shaft sleeve sealing sleeve 2, the static ring sealing ring 17 and the large dynamic ring sealing ring 22, when the internal stress condition is better, the specific pressure of the end faces is smaller and easy to form, and the specific pressure of the cutting end face increases along with the increase of the medium, therefore, the integral sealing reliability is improved, the medium with suspended particles and fibers, the gas medium, the inflammable and explosive medium, the medium with low volatile viscosity, the high vacuum and the precious materials and the required medium are effectively prevented from leaking in an isolated way with air, wherein the medium on the medium side is viscous, the medium is prevented from being overstocked and accumulated in a dead angle, so that the auxiliary moving ring sealing ring 14 fails, and further the compensation mechanism spring 32 is lost elasticity, the inventor designs the sizes of the outer edges of the moving ring 15 and the static ring 5 to be consistent, the accumulation of the medium is reduced, simultaneously increases the specific pressure of the spring 32, and is increased to 0.27-0.28MPa from the conventional 0.18-0.2MPa, in a preferred embodiment, the specific pressure of the spring is 0.275MPa, the integral structure adopts a balance mechanical seal (K <1), the specific pressure of the end face is slowly increased along with the increase of the liquid pressure, the abrasion condition of the end face is improved, and the balance mechanical seal is adopted to reduce the pressure of the sealing medium, the specific pressure of the end faces is brought within a suitable range, where K is the load factor, for a fluid-type mechanical seal. Different seal configurations may be calculated according to the load factor definition. The significance of the load factor is very large, the load factor is an important parameter for distinguishing a balanced type seal from an unbalanced type seal, the leakage amount and the service life are greatly influenced, the abrasion generated in use can be reduced by arranging the shaft sleeve on the inner side wall of the body, finally, the movable ring 15 and the static ring 5 are arranged to replace the traditional packing, the damage is not easy, in the later maintenance process, the ring surface can be used only by grinding, because the mass side is directly contacted with a solvent, the graphite and the silicon carbide are similar to an alloy in performance, but the alloy hardness factor is high, the alloy hardness factor is not brittle and is not easy to damage, in the later maintenance process, the ring surface can be used only by grinding, because the mass side is not contacted with a medium, the relative requirement is low, in order to save the cost, the general group is silicon carbide to the graphite, the graphite material is soft, and the ring surface can be easily broken by a fixing pin in the initial operation, the past experience is absorbed, so in the design, the inventor adopts an embedded type, the left side of the atmosphere static ring component 8 in the embedded type structure is made of metal, in a preferred embodiment, the left side of the atmosphere static ring component in the embedded type structure is made of metal 304, the left side of the atmosphere static ring component is made of graphite which is easy to break, and the right side of the atmosphere static ring component is provided with graphite and is driven, so that the embedded type compensation ring has better strength and rigidity than an integral type graphite compensation ring and is not easy to break, if materials with different linear expansion coefficients are adopted for embedding, a certain interference magnitude is ensured at the working temperature, wherein the interference magnitude refers to the relationship between mutually combined holes and shaft tolerance zones with the same basic size, and the combined tightness degree and the experience range of the interference magnitude are determined: delta is more than or equal to 0.01-0.02 mm. In a preferred embodiment, the interference is 0.015.

The inventor successfully applies the mechanical seal to the cylinder mixing equipment for papermaking through the technical means, and simultaneously adopts the container type double-end-face mechanical seal according to the special performance of the medium used in the papermaking industry to obtain good sealing performance, the medium leakage amount is only 1% of that of the soft packing seal, the power loss in the device friction process is only 10-50% of that of the soft packing seal, the device shaft is almost not abraded, the service life is extremely long, frequent replacement and maintenance are not needed, and the device has strong industrial application value and development prospect. 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.