CN2644724Y - Integral packaging type mechanical seal for centrifugal pump - Google Patents

Integral packaging type mechanical seal for centrifugal pump Download PDF

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Publication number
CN2644724Y
CN2644724Y CN 03270475 CN03270475U CN2644724Y CN 2644724 Y CN2644724 Y CN 2644724Y CN 03270475 CN03270475 CN 03270475 CN 03270475 U CN03270475 U CN 03270475U CN 2644724 Y CN2644724 Y CN 2644724Y
Authority
CN
China
Prior art keywords
ring
claw
axle sleeve
spring
shaft sleeve
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 03270475
Other languages
Chinese (zh)
Inventor
赵志强
万媛爱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Liancheng Group Co Ltd
Original Assignee
Shanghai Liancheng Group Co Ltd
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
Application filed by Shanghai Liancheng Group Co Ltd filed Critical Shanghai Liancheng Group Co Ltd
Priority to CN 03270475 priority Critical patent/CN2644724Y/en
Application granted granted Critical
Publication of CN2644724Y publication Critical patent/CN2644724Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an integrated package machinery sealing for a centrifugal pump; a spring base is fixed on a shaft sleeve; three even thorough holes are arranged at the other end of the shaft sleeve where a spring is inserted; a drive pawl is inserted into the shaft sleeve and is arranged on the spring and is movable connected with the shaft sleeve; three even protruding claws are arranged on the spring base; three even protruding claws are staggeringly arranged at the upper and the lower of the drive pawl; a sealing ring is fixedly connected with the upper part of the drive pawl; three even protruding claws are arranged at the outer ring of the movable ring which is locked between the upper pawl of the dynamic ring through the claw; a seal ring is fixed on the static ring which is sleeved on the shaft sleeve and contacts the upper plane of the dynamic ring; a bonneted nut is provided with a pipe thread and is fixedly connected with the static ring through the O-shaped seal ring on the static ring; three even screw holes are arranged on the fixing ring and are fixedly connected through the fastening screw nail with three even through holes on the shaft sleeve. The utility model has the advantages of having convenient assembling and disassembling because of adopting integrated package machinery seal, effectively improving seal performance and prolonging life span of the products.

Description

The whole integrated mechanical sealing of centrifugal pump
Technical field
The utility model belongs to the architecture advances of centrifugal pump seal arrangement.
Background technique
The separate mechanical sealing is adopted in the mechanical seal of existing centrifugal pump.The machine of this structure is sealed up for safekeeping in following shortcoming: 1, rotating ring and stationary ring are to separate to pack into when assembling, if more change planes envelope, must take the machine sealed cover apart, take out rotating ring and stationary ring then respectively, thus the assembling of mechanical seal when changing than bothering.2, in assembly process, personal factor is more, and as its circumferencial direction unbalance stress when packing stationary ring into, so spring does not wait in the circumferencial direction decrement, the elastic force inequality does not wait O RunddichtringO decrement, and the sealing of mechanical seal also just can not be fine.3, its sealing is subjected to the influence of entire pump dimensional chain and machining error, and moved by the rotor string influences.4 springs owing to this mechanical seal, so rotating ring, stationary ring and O-ring seals unbalance stress are fragile
Summary of the invention
The utility model provides a kind of improved centrifugal pump sealing device structure for solving the shortcoming that above-mentioned prior art exists.The utility model is to change common separate mechanical sealing into whole integrated mechanical sealing.
The whole integrated mechanical sealing of centrifugal pump is characterized in that spring seat 3 is fixed on the axle sleeve 2; Axle sleeve 2 the other ends have three uniform through holes 21; Spring 4 is inserted on the axle sleeve 2, and driving pawl 5 is inserted on the axle sleeve 2 and is positioned on the spring 4, flexibly connects with axle sleeve 2; Spring seat 3 has the claw 31 of three uniform projectioies; Driving pawl 5 all has the upper clipping claw 51 of three uniform projectioies, following claw 52 up and down, and claw staggers mutually up and down; Driving pawl 5 is stuck between the claw 31 of spring seat 3 by following claw 52; The fixedly connected O RunddichtringO 6 in pedestal 53 tops of driving pawl 5; The outer ring of rotating ring 7 has the claw 71 of three uniform projectioies, and rotating ring 7 is stuck between the upper clipping claw of driving pawl 5 by claw; Stationary ring 8 has flange 81, is fixed with O RunddichtringO 9 on the flange; Stationary ring 8 is enclosed within on the axle sleeve 2, with the last plane contact of rotating ring; Cap nut 11 has pipe thread 113, fixedlys connected with stationary ring by the O RunddichtringO 9 on the stationary ring; The pipe thread root 112 fixedly connected O-ring seals 12 of cap nut 11; Retaining ring 14 has three uniform screws 141, fixedlys connected by three uniform on fastening screw trip bolt 15 and the axle sleeve 2 through holes 21.
The position that axle sleeve 2 is connected with spring seat 3 is fixed with O-ring seals 1.
Have a circle groove 111 above the cap nut 11, sealing gasket 13 is housed in the groove.
During installation, at first spring seat 3 is welded on the axle sleeve 2 spring 4 of on axle sleeve 2, packing into successively, driving pawl 5, rotating ring 7, stationary ring 8, cap nut 11, retaining ring 14 etc., and be connected and fixed ring 14 and axle sleeve 2 by fastening screw trip bolt 15, and coming the extending amount of control spring 4, O-ring seals 6 and 9 is sealed by spring 4 elastic force, rotating ring 7 is pressed by spring force also to realize sealing, O-ring seals 1 then to guarantee spool sealing with shaft room with stationary ring 8.The mechanical seal that assembles need only be packed into along axle when assembling, connect by cap nut 11 and pump cover 10, O-ring seals 12 is realized the sealing at this place with pipe thread.By the fastening screw trip bolt on the retaining ring 14 15 mechanical seal is fixed on the axle 16 again.
The present invention makes that loading and unloading are very convenient owing to adopted whole integrated mechanical sealing, has improved sealability effectively, has prolonged the working life of product.
Working principle of the present utility model is, axle 16 rotating band moving axis cover 2 and spring seat 3 rotate, spring seat 3 is by claw 31,52 pass to moment driving pawl 5 again, driving pawl 5 is by claw 51,71 drive rotating ring 7 rotates, spring 4 passes to rotating ring 7 by driving pawl 5 and O-ring seals 6 with elastic force, rotating ring just is pressed under certain elastic force effect on the stationary ring 8 in the cap nut 11, form a pair of fastness, this has just guaranteed the sealing of 8 of rotating ring 7 and stationary rings, retaining ring 14 is located on axle sleeve 2 by fastening screw trip bolt 15, controlled the extending amount of spring 4, because the elastic force effect of spring 4, make O-ring seals 6 and O-ring seals 9 compacted, thereby driving pawl 5 and rotating ring 7 have been guaranteed, the sealing that stationary ring 8 and cap nut are 11, axle 16 is then guaranteed by O-ring seals 1 with the sealing of axle sleeve 2, and O-ring seals has guaranteed the sealing between cap nut 11 and the pump cover 10.When assembling, the mechanical seal that has assembled to be packed into along axle 16, and cap nut 11 is tightened on the pump cover 10, the fastening screw trip bolt of tightening again on the retaining ring 14 15 gets final product with axle 16 is radially fixing.During dismounting, at first loosen the fastening screw trip bolt 15 (not needing to take off fully) on the retaining ring 14, the cap nut 11 of back-outing then, whole like this mechanical seal is just taken off.
Description of drawings
Accompanying drawing 1 is the utility model structural formula intention.
Accompanying drawing 2 is the utility model mounting structure schematic representation.
Accompanying drawing 3 is the utility model axle sleeve structure schematic representation.
Accompanying drawing 4 is the utility model spring seat structural representations.
Accompanying drawing 5 is the utility model driving pawl structural representations.
Accompanying drawing 6 is the utility model rotating ring structural representations.
Accompanying drawing 7 is the utility model stationary ring structural representations.
Accompanying drawing 8 is the utility model cap nut structural representations.
Accompanying drawing 9 is the utility model retaining ring structural representations.
1 O-ring seals, 2 axle sleeves, 21 through holes, 3 spring seats, 31 claws, 4 springs, 5 driving pawls, 51 upper clipping claws, 52 times claws, 53 driving pawl pedestals, 6 O-ring seals, 7 rotating rings, 71 claws, 8 stationary rings, 81 flanges, 9 O-ring seals, 10 pump covers, 11 cap nuts, 111 grooves, 112 pipe thread roots, 113 pipe thread, 12 O-ring seals, 13 sealing gaskets, 14 retaining rings, 141 screws, 15 screws, 16.
Embodiment
The whole integrated mechanical sealing of centrifugal pump is characterized in that spring seat 3 is fixed on the axle sleeve 2; Axle sleeve 2 the other ends have three uniform through holes 21; The position that axle sleeve 2 is connected with spring seat 3 is fixed with O-ring seals 1.Spring 4 is inserted on the axle sleeve 2, and driving pawl 5 is inserted on the axle sleeve 2 and is positioned on the spring 4, flexibly connects with axle sleeve 2; Spring seat 3 has the claw 31 of three uniform projectioies; Driving pawl 5 all has the upper clipping claw 51 of three uniform projectioies, following claw 52 up and down, and claw staggers mutually up and down; Driving pawl 5 is stuck between the claw 31 of spring seat 3 by following claw 52; The fixedly connected O RunddichtringO 6 in pedestal 53 tops of driving pawl 5; The outer ring of rotating ring 7 has the claw 71 of three uniform projectioies, and rotating ring 7 is stuck between the upper clipping claw of driving pawl 5 by claw; Stationary ring 8 has flange 81, is fixed with O RunddichtringO 9 on the flange; Stationary ring 8 is enclosed within on the axle sleeve 2, with the last plane contact of rotating ring; Cap nut 11 has pipe thread 113, fixedlys connected with stationary ring by the O RunddichtringO 9 on the stationary ring; The pipe thread root 112 fixedly connected O-ring seals 12 of cap nut 11; Have a circle groove 111 above the cap nut 11, sealing gasket 13 is housed in the groove.Retaining ring 14 has three uniform screws 141, fixedlys connected by three uniform on fastening screw trip bolt 15 and the axle sleeve 2 through holes 21.

Claims (3)

1, the whole integrated mechanical sealing of a kind of centrifugal pump is characterized in that spring seat (3) is fixed on the axle sleeve (2); The axle sleeve the other end has uniform three through holes (21); Spring (4) is inserted on the axle sleeve, and driving pawl (5) is inserted on the axle sleeve and is positioned on the spring, flexibly connects with axle sleeve; Spring seat has the claw (31) of three uniform projectioies; Driving pawl all has the upper clipping claw (51) of three uniform projectioies, following claw (52) up and down, and claw staggers mutually up and down; Driving pawl is stuck between the claw (31) of spring seat by following claw (52); The fixedly connected O RunddichtringO in the pedestal of driving pawl (53) top (6); The outer ring of rotating ring (7) has the claw (71) of three uniform projectioies, and rotating ring is stuck between the upper clipping claw of driving pawl by claw; Stationary ring (8) has flange (81), is fixed with O RunddichtringO (9) on the flange; Stationary ring is enclosed within on the axle sleeve, with the last plane contact of rotating ring; Cap nut (11) has pipe thread (113), fixedlys connected with stationary ring by the O RunddichtringO (9) on the stationary ring; The fixedly connected O-ring seals of pipe thread root (112) (12) of cap nut; Retaining ring (14) has three uniform screws (141), fixedlys connected by three through holes (21) uniform on fastening screw trip bolt (15) and the axle sleeve.
2, according to the whole integrated mechanical sealing of the described centrifugal pump of claim 1, it is characterized in that the position that axle sleeve is connected with spring seat 3 is fixed with O-ring seals (1).
3, according to claim 1 or the whole integrated mechanical sealing of 2 described centrifugal pumps, it is characterized in that, have a circle groove (111) above the cap nut (11), sealing gasket (13) is housed in the groove.
CN 03270475 2003-09-27 2003-09-27 Integral packaging type mechanical seal for centrifugal pump Expired - Fee Related CN2644724Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03270475 CN2644724Y (en) 2003-09-27 2003-09-27 Integral packaging type mechanical seal for centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03270475 CN2644724Y (en) 2003-09-27 2003-09-27 Integral packaging type mechanical seal for centrifugal pump

Publications (1)

Publication Number Publication Date
CN2644724Y true CN2644724Y (en) 2004-09-29

Family

ID=34300306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03270475 Expired - Fee Related CN2644724Y (en) 2003-09-27 2003-09-27 Integral packaging type mechanical seal for centrifugal pump

Country Status (1)

Country Link
CN (1) CN2644724Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116309A (en) * 2010-12-30 2011-07-06 上海阿波罗机械股份有限公司 Mechanical sealing device for centrifugal pump
CN105156338A (en) * 2015-09-25 2015-12-16 珠海格力电器股份有限公司 Self-priming water pump and water dispenser and humidifier provided with self-priming water pump
CN108138969A (en) * 2015-10-30 2018-06-08 Ksb 股份公司 For the component of shaft seal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116309A (en) * 2010-12-30 2011-07-06 上海阿波罗机械股份有限公司 Mechanical sealing device for centrifugal pump
CN102116309B (en) * 2010-12-30 2012-07-25 上海阿波罗机械股份有限公司 Mechanical sealing device for centrifugal pump
CN105156338A (en) * 2015-09-25 2015-12-16 珠海格力电器股份有限公司 Self-priming water pump and water dispenser and humidifier provided with self-priming water pump
CN108138969A (en) * 2015-10-30 2018-06-08 Ksb 股份公司 For the component of shaft seal

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040929

Termination date: 20110927