WO2008006272A1 - Ensemble garniture antifuite de pompe à eau - Google Patents

Ensemble garniture antifuite de pompe à eau Download PDF

Info

Publication number
WO2008006272A1
WO2008006272A1 PCT/CN2007/001136 CN2007001136W WO2008006272A1 WO 2008006272 A1 WO2008006272 A1 WO 2008006272A1 CN 2007001136 W CN2007001136 W CN 2007001136W WO 2008006272 A1 WO2008006272 A1 WO 2008006272A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
ring body
moving
sleeve
stationary
Prior art date
Application number
PCT/CN2007/001136
Other languages
English (en)
Chinese (zh)
Inventor
Xuezhong Jiang
Original Assignee
Xuezhong Jiang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 200620074733 external-priority patent/CN200978826Y/zh
Priority claimed from CN 200620126131 external-priority patent/CN200982408Y/zh
Application filed by Xuezhong Jiang filed Critical Xuezhong Jiang
Publication of WO2008006272A1 publication Critical patent/WO2008006272A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member

Definitions

  • the invention relates to a water pump seal, in particular to a water pump seal for an automobile.
  • Existing automotive water pump seals generally employ a single-stage sealing technique in which a dynamic end face is brought into contact with another static end face, combined in one position, to create a single motion track position that prevents media from entering one area from another.
  • This single position application isolation method is called single-stage sealing technology.
  • the end face of the moving ring with single-stage sealing technology runs along the end face of the static ring, which is affected by the frequent and strong changes of the rotating working condition, and the automatic adjusting adsorption force of the moving and static ring under the action of the spring tension.
  • the sealing end face generates fluctuations, and the balance force is not Uniform, reduced stability.
  • the sealing medium can not solve the problem of purity.
  • the granular material in the medium moves with the medium, squeezes, breaks into the end of the static ring, and the moving motion of the moving ring drives the friction of the granular material.
  • the static ring body is soft in graphite material, it is not resistant to the friction of hard and sharp debris. Therefore, after the particulate matter enters, it is easy to damage the end face of the static ring, causing seal failure and shortening the life cycle of the seal.
  • the existing automotive water pump seals generally use glue to bond the joints of the seals. Due to environmental conditions, most of the selected adhesives are hardened after coagulation, and the adhesive layer on the adhesive parts is in contact with water for a long time, which is bound to accelerate the hardening of the rubber layers. The aging is separated, so the interface is not strong, the service life of the seal is shortened, and the sealing effect is not reliable. At present, the bonding technology can not overcome the uneven distribution of the glue at the interface, and some of the residual glue is exposed, which affects the appearance of the product. Therefore, it is necessary to design a new type of sealing member to solve the above problem.
  • the present invention is directed to the current state of the art, and a non-leakage water pump seal using a glueless process and having a multi-stage sealing function is designed.
  • the seal has good sealing effect, stable performance and long service life.
  • the object of the present invention is achieved by the following measures:
  • a non-leakage water pump seal comprising a moving ring body, a static ring body, a moving ring seat cover, a static ring seat cover, and a movable identification a ring seal, a spring, a spring seat and a rubber sealing sleeve, the lower surface of the moving ring body is matched with the upper surface of the stationary ring body, and the moving ring sealing ring is disposed between the moving ring body and the moving ring seat bushing, and the rubber seal
  • the upper part of the sleeve is embedded in the groove of the static ring body, and the lower part is set in the static ring seat cover, wherein the movable ring body and the static ring body are provided with a plurality of deposition grooves or a plurality of deposition grooves.
  • the deposition groove is opened on the lower surface of the movable ring body or on the upper surface of the stationary ring body, and the deposition groove is 2-5 turns.
  • the deposition grooves are preferably arranged at unequal distances.
  • the protruding loop band is provided on the movable ring body or on the static ring body, and the protruding ring band is 2-5 turns.
  • the raised loops are preferably arranged at unequal distances.
  • the static ring body extends from an outer edge of a side of the contact surface of the rubber sealing sleeve and is coupled to the spring seat.
  • Each of the upper surface of the rubber gland and the static ring body, and the bottom surface of the lower portion and the stationary ring seat cover are provided with 1-8 circumferential circumferential ring grooves or convex bands.
  • the lower part of the rubber sealing sleeve extends upwardly along the inner side wall of the bottom of the static ring seat cover, and a ring sleeve or a convex band is provided on the side of the extension ring sleeve which is in contact with the side wall of the stationary ring seat cover.
  • the retaining ring disposed at the lower portion of the rubber gland also extends upwardly with respect to the extended collar of the rubber gland, and the two ring sleeves are fitted to each other to laterally fold at the end of the retaining ring extension collar.
  • the upper and lower shaft diameters of the shaft diameter of the moving ring seat bushing are larger than the middle shaft diameter.
  • the invention adopts a multi-stage sealing technology, and in the position where the end surface of one moving ring body is combined with the end surface of another static ring body, the moving ring body or the static ring body is arranged on the same end surface by adopting the unequal annular structure.
  • the position of the moving track which constructs one position into a plurality of track contact positions, controls the sealing medium to enter the other inner area from the outer area.
  • This application of multiple position blocking methods is called multi-stage sealing technology.
  • the invention provides an annular groove on the surface of the moving ring body or the static ring body, which is beneficial to prevent the particle impurities from staying on the sealing surface of the moving and static rings, destroying the sealing member, and also facilitating the mutual cooperation of the moving and static rings, and multi-turning
  • the groove acts as a multi-stage seal. It effectively eliminates the unstable factors that damage the sealing end face, achieves the anti-leakage effect, and prolongs the sealing cycle.
  • the invention provides an annular protruding ring belt on the moving ring body or the static ring body, which is the same as the principle of providing the annular groove, and is also for preventing the particulate impurities from staying on the sealing surface of the moving and static rings, damaging the sealing member or reducing the sealing member.
  • Performance, multi-turn protruding band also plays a multi-stage seal.
  • the ring body of the moving ring has a smooth surface level, the static ring body is made of graphite material, and the end surface of the static ring body is smooth and horizontal. Due to the principle of rotating machinery, the end face of the annular ring band on the moving ring body and the end face of the graphite static ring body Friction grinding occurs, the end surface of the stationary ring body changes, and the end face of the ring body of the moving ring body grinds the annular indent groove at the corresponding position between the end faces of the stationary ring body, and the end faces of the two end portions are correspondingly meshed, so as to prevent impurities from entering the moving and static state. On the end face of the ring.
  • the impurities run out of the ground annular indentation groove, the impurities remain in the gap formed by the moving and stationary ring bodies due to the loops, and the moving and static ring contact faces are not damaged, similar to the groove structure.
  • the treatment state of the impurities does not affect the sealing effect.
  • the second loop can also prevent the intrusion of impurities. Therefore, the principle of providing an annular raised band on the stationary ring body is the same as the principle of providing a groove on the stationary ring body.
  • annular grooves are designed, which are opposite to the end faces of the moving ring body, and the annular groove allows the granular material to enter, and the granular material enters the sealing end face due to the moving ring body.
  • the granular material loses the driving force and cannot pass through the second sealing line from the horizontal line. may.
  • the fresh granular material re-enters, and the first groove body still has priority.
  • the second groove body is forbidden to wait for the particulate matter to enter, and the third channel is the back seal for implementing the safety seal.
  • the damaged end face is regularly ground to achieve automatic repair and flatness, so that no leakage occurs, and the effect of long-term perfect sealing is achieved.
  • the invention adopts a multi-stage sealing technology, and adopts the form of the isolating belt of the unequal annular structure to set the moving ring body or the static ring body into a plurality of moving track positions, thereby realizing one position to construct a plurality of track contact positions, and controlling the sealing.
  • the medium enters another area from this area.
  • the end face of the moving ring body and the static ring body Due to the action of water film, the end face forms an annular water belt during movement.
  • the orbital and orbital position are separated by the isolation water belt. After the adsorption force is generated, the self-sliding effect is formed, which eliminates the contact area. , the resistance of the increased torque resistance.
  • the invention can effectively prevent impurities from entering the sealing end surface by the arrangement of the multilayer annular structure, enhance the sealing effect and increase the life cycle of the sealing member.
  • the invention also designs a multi-ring ring groove on the rubber sleeve, and uses the groove-type principle and the spring tension to tightly bond the rubber sleeve with other components, completely omitting the glue bonding method of the prior art, and embedding the joint portion of the sealing body by embedding
  • the design of the structure, the ring groove is designed around the upper and lower end faces of the rubber sealing sleeve, and the ring groove is also designed around the moving ring sealing ring.
  • the groove groove interference size embedded in the groove body the contact area of the joint portion is mutated, and the contact between the two is tightly pressed, thereby enhancing the long-term sealing effect, and completely fixing the rubber sealing sleeve and the static ring seat cover in close contact.
  • the invention completely abandons the glue bonding method of the prior art, structurally increases the ring groove of the rubber sleeve and the moving ring sealing ring to increase the contact area with other components, and makes them close together, together with the rubber sealing sleeve
  • the improvement of the fixed race and the moving ring seat bushing is 50% better than before.
  • the longevity design concept has been improved, and a good anti-leakage effect has been achieved, which has improved the quality of the entire pump seal. .
  • Fig. 1 is a schematic view showing the structure of an annular groove provided on a stationary ring body.
  • FIG. 2 is a schematic structural view of an annular groove provided on a moving ring body.
  • Fig. 3 is a structural schematic view showing the arrangement of an annular band on the moving ring body.
  • Fig. 4 is a schematic view showing the structure of an annular ring belt on a stationary ring body.
  • Fig. 5 is a reference view of the state of use of the seal of Fig. 1.
  • Fig. 6 is a structural schematic view showing a groove on the stationary ring body and a ring groove on the rubber sealing sleeve.
  • Fig. 7 is a structural schematic view showing a groove on the moving ring body and a ring groove on the rubber sealing sleeve.
  • the sealing member of the present invention comprises a moving ring body 1, a stationary ring body 2, a moving ring seat cover 6, a stationary ring seat cover 8, a moving ring sealing ring 7, a spring 3, a spring seat 4 and a rubber seal.
  • the moving ring body 1 is generally made of a ceramic material or a stainless steel metal material
  • the static ring body 2 is generally made of a graphite material and has a soft material.
  • the moving ring body 1 is set on the movable ring seat cover 6, and a moving ring sealing ring 7 is arranged between the moving ring body 1 and the moving ring seat cover 6.
  • the lower surface of the moving ring body 1 is closely matched with the upper surface of the stationary ring body 2, and three floating grooves are formed on the contact surface of the moving ring body 1 and the stationary ring body 2, and the groove is opened on the stationary ring body.
  • the ring-shaped annular groove 11 On the surface, the ring-shaped annular groove 11 has a depth of 10 mm and a width of 10 mm.
  • the three-turn deposition grooves are arranged in unequal distances.
  • the sealing member 16 of the present invention is mounted on the shaft connecting shaft 14 of the pump body, and the stationary ring seat sleeve 9 is fixed in the sealing chamber of the pump body 13.
  • the spring 3 is generated.
  • the pressure of the rotating impeller 15 is located at the upper end of the moving ring seat cover 6, and the moving ring seat 6 is fixed on the shaft connecting shaft 14 and moves accordingly to drive the moving ring body 1 to rotate.
  • the upper end surface of the rubber sealing sleeve 5 and the lower contact surface of the static ring body 2 are adhered to each other, the lower end is abutted in the static ring seat cover 8 and adhered thereto, the spring 3 is set outside the rubber sealing sleeve 5, and the spring seat 3 is provided with a spring seat at both ends thereof. 4.
  • the outer edge of the side of the contact surface of the static ring body 2 and the rubber sealing sleeve 5 is provided with an extension 19 and is connected with the spring seat ring 4, which effectively increases the adhesive contact area of the static ring body 2 and the rubber sealing sleeve 5, and improves the pasting. Strength, the product is also more beautiful.
  • the particles move irregularly due to the rotation of the moving ring body 1, and the tension of the spring 3 is unbalanced, so that the particles easily fall into the first groove, and will not The contact surface of the moving and stationary ring body.
  • the arrangement of the second groove body can prevent the particulate impurities from staying on the contact surface of the moving and static ring bodies, and the third groove serves as a further sealing effect, and the three-circle unequal grooves are more advantageous. seal.
  • the damaged end face is regularly ground to realize automatic repair and flatness, which is not easy to cause leakage, and achieves the effect of long-term intact sealing.
  • the same groove may also be disposed on the lower surface of the moving ring body 1, as shown in the moving ring.
  • the body annular groove 9 can also exert the same sealing effect, and the sealing principle is basically the same.
  • the materials of the moving and stationary rings can be interchanged, the moving ring body 1 is made of graphite material, and the static ring body 2 is made of ceramic or stainless steel.
  • the sealing member of the present invention comprises a moving ring body 1, a stationary ring body 2, a moving ring seat cover 6, a stationary ring seat cover 9, a moving ring sealing ring 7, a spring 3, a spring seat 4 and a rubber seal.
  • the moving ring body 1 is generally made of a ceramic material or a stainless steel metal material
  • the static ring body 2 is generally made of a graphite material and has a soft material.
  • the moving ring body 1 is set on the movable ring seat cover 6, and a moving ring sealing ring 7 is arranged between the moving ring body 1 and the moving ring seat cover 6.
  • the lower surface of the moving ring body 1 is closely matched with the upper surface of the stationary ring body 2, and three ring-shaped protruding ring bands are arranged on the contact surface of the movable ring body 1 and the stationary ring body 2, and the ring band is disposed on the movable ring body.
  • the moving ring annular band 10 has a height of 10 mm and a width of 10 mm.
  • the end surface of the raised annular ring of the moving ring body 1 is frictionally ground with the end surface of the stationary ring body 2, and the end surface of the stationary ring body 2 changes, and the end surface of the ring body ring 10 of the moving ring body corresponds between the end faces of the stationary ring body 2
  • the annular indent groove is ground, and the end faces of the two are correspondingly engaged, so as to prevent impurities from entering the end faces of the moving and stationary rings. Even if the impurities enter the sealing member from the ground annular groove groove, the impurities stay at the gap formed by the moving and stationary ring body due to the loop band, and will not damage the moving and static ring contact surfaces, similar to the groove structure.
  • the treatment state of the impurities does not affect the sealing effect. Since the moving ring annular band 10 is three, the second moving ring annular band can also prevent the intrusion of impurities. Multi-level unequal spacing is used to better seal.
  • the same annular ring band can also be disposed on the upper surface of the stationary ring body 2, as shown in the ring body annular ring band 12, which can also exert the same sealing function, and is sealed.
  • the principle is basically the same.
  • the materials of the moving and stationary rings can be interchanged, the moving ring body is made of graphite material, and the static ring body is made of ceramic or stainless steel.
  • the sealing member is based on the groove on the upper surface of the stationary ring body 2, and further includes the following structures, including the moving ring body 1, the stationary ring body 2, and the moving ring body Ring seal ring 7, spring 3, spring seat 4, fixed race 21, moving ring seat cover 6, static ring seat cover 8 and rubber sealing sleeve 5, moving ring seal ring 7 is arranged on moving ring body 1 and moving ring seat
  • the upper part of the rubber sealing sleeve 5 is embedded in the static In the groove of the ring body 2, the lower part is set in the static ring seat cover 8, the upper part of the rubber gland 5 is matched with the static ring body 2, and the lower part is matched with the bottom surface of the static ring seat cover 8
  • a number of circumferential ring grooves are possible.
  • the top surface and the side surface of the moving ring seal 7 may be provided with a plurality of circumferential ring grooves at a portion in contact with the movable ring seat cover 6.
  • the top ring of the moving ring seal 7 has three ring grooves and two ring grooves on the side, and the number of ring grooves can be 1 - 8 rings.
  • the ring grooves of the top surface of the top surface are radially distributed, and the ring grooves of the side surfaces are distributed along the axial direction.
  • the top surface of the rubber sealing sleeve 5 and the static ring body 2 are provided with two ring-shaped ring grooves, and a ring groove is opened on both sides, and the number of ring grooves can be 1-8 rings.
  • the rubber sealing sleeve 5 has three ring grooves on the bottom surface of the static ring seat cover 8 and the number of ring grooves can be 1-8 rings.
  • the top surface and the two side surfaces of the upper portion of the rubber sealing sleeve 5 which cooperate with the stationary ring body 2, and the bottom surface and one side surface of the lower portion which cooperate with the stationary ring seat cover 8 are provided with 1-8 ring grooves.
  • the annular grooves of the top and bottom surfaces are distributed in the radial direction, and the circumferential ring grooves are distributed in the axial direction.
  • the lower part of the rubber sealing sleeve 5 extends upward along the inner side wall of the stationary ring seat cover 8 with an extension ring sleeve 25, and the height of the extension ring sleeve 25 is 1-15 mm, and is on the extension ring sleeve 25 and the side of the stationary ring seat cover 8.
  • the fixed race 21 disposed at the lower portion of the rubber gland 5 is also extended upwardly with respect to the extended collar of the rubber gland 5 by an extension collar 18, the two loop sleeves are adapted, and the height of the extension collar 18 is It can be 1-15 mm, they can either fix the spring or completely fix the rubber gland 5 and insert it into the stationary ring seat cover 8 to make it in close contact.
  • the lateral flange 20 of the end of the extension collar 18 of the fixed race 21 extends 1-8 mm, which is advantageous for positioning the rubber seal sleeve 5 and for closely engaging the side wall of the stationary ring seat cover 8.
  • the shaft diameter upper portion 22 and the lower shaft diameter 25 of the moving ring seat cover 6 are both larger than the axial center portion 23 by about 1-5 mm.
  • the change of the upper portion 22 of the shaft diameter can effectively prevent the top of the moving ring seat cover 6 from being upturned due to the pressure of the pressure receiving sleeve, and also facilitate the positioning of the moving ring body 1 to avoid the center offset.
  • the change of the lower part of the shaft diameter 24 can guide the positioning during the process of pressing the sleeve, which is convenient for installation.
  • a groove is formed in the movable ring body 1, and a ring groove structure is provided on the rubber sealing sleeve 5.
  • the upper surface of the rubber gland 5 and the surface of the static ring body, and the bottom surface of the lower portion and the static ring seat cover may be respectively provided with 1-8 circumferential convex bands, that is, raised ring bands, and Setting the ring groove can achieve the same effect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)

Abstract

Un ensemble garniture antifuite d'une pompe à eau comprend une bague tournante, une bague fixe, un siège de bague tournante, un siège de bague fixe, un anneau de garniture de bague tournante, un ressort, un siège de ressort et une protection de garniture en caoutchouc. La surface inférieure de la bague tournante est en contact avec la surface supérieure de la bague fixe. Plusieurs rainures annulaires ou plusieurs bandes saillantes sont formées dans la surface de contact de la bague tournante et de la bague fixe. Certaines rainures annulaires sont formées dans la protection de garniture en caoutchouc. Cet ensemble garniture comporte plusieurs gradins et assure une étanchéité stable, elle présente une longue durée d'utilisation.
PCT/CN2007/001136 2006-07-06 2007-04-09 Ensemble garniture antifuite de pompe à eau WO2008006272A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 200620074733 CN200978826Y (zh) 2006-07-06 2006-07-06 一种无渗漏水泵密封件
CN200620074733.0 2006-07-06
CN200620126131.5 2006-10-18
CN 200620126131 CN200982408Y (zh) 2006-10-18 2006-10-18 一种嵌槽式密封件

Publications (1)

Publication Number Publication Date
WO2008006272A1 true WO2008006272A1 (fr) 2008-01-17

Family

ID=38924301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001136 WO2008006272A1 (fr) 2006-07-06 2007-04-09 Ensemble garniture antifuite de pompe à eau

Country Status (1)

Country Link
WO (1) WO2008006272A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107387772A (zh) * 2017-08-25 2017-11-24 西安航天动力研究所 一种紧凑型超高速耐高温机械密封装置
CN107246403B (zh) * 2017-07-06 2023-09-05 邯钢集团邯宝钢铁有限公司 一种酸雾风机轴端密封装置
CN113236782B (zh) * 2021-04-29 2023-11-17 西安航天精密机电研究所 一种耐高压低摩擦的动密封结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491331A (en) * 1981-12-23 1985-01-01 Hughes Tool Company Grooved mechanical face seal
CN2184804Y (zh) * 1993-12-27 1994-12-07 西安交通大学 一种涡旋盘密封结构
JP2002156047A (ja) * 2000-11-17 2002-05-31 Meidensha Corp 立軸回転機のラビリンスシール構造
CN2575340Y (zh) * 2002-10-21 2003-09-24 宜兴市工程塑料设备厂 一种泵用机械密封
CN2683862Y (zh) * 2004-03-17 2005-03-09 惠庆海 防渗漏水泵水封

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491331A (en) * 1981-12-23 1985-01-01 Hughes Tool Company Grooved mechanical face seal
CN2184804Y (zh) * 1993-12-27 1994-12-07 西安交通大学 一种涡旋盘密封结构
JP2002156047A (ja) * 2000-11-17 2002-05-31 Meidensha Corp 立軸回転機のラビリンスシール構造
CN2575340Y (zh) * 2002-10-21 2003-09-24 宜兴市工程塑料设备厂 一种泵用机械密封
CN2683862Y (zh) * 2004-03-17 2005-03-09 惠庆海 防渗漏水泵水封

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246403B (zh) * 2017-07-06 2023-09-05 邯钢集团邯宝钢铁有限公司 一种酸雾风机轴端密封装置
CN107387772A (zh) * 2017-08-25 2017-11-24 西安航天动力研究所 一种紧凑型超高速耐高温机械密封装置
CN107387772B (zh) * 2017-08-25 2023-05-30 西安航天动力研究所 一种紧凑型超高速耐高温机械密封装置
CN113236782B (zh) * 2021-04-29 2023-11-17 西安航天精密机电研究所 一种耐高压低摩擦的动密封结构

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