CN203571054U - Limiting mechanism of mechanical sealing device - Google Patents

Limiting mechanism of mechanical sealing device Download PDF

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Publication number
CN203571054U
CN203571054U CN201320508188.1U CN201320508188U CN203571054U CN 203571054 U CN203571054 U CN 203571054U CN 201320508188 U CN201320508188 U CN 201320508188U CN 203571054 U CN203571054 U CN 203571054U
Authority
CN
China
Prior art keywords
groove
annular
mechanical seal
limit
limiting block
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
CN201320508188.1U
Other languages
Chinese (zh)
Inventor
王建卫
张卫东
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.)
SUZHOU HENGYANG PRECISION MACHINERY CO Ltd
Original Assignee
SUZHOU HENGYANG PRECISION MACHINERY 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 SUZHOU HENGYANG PRECISION MACHINERY CO Ltd filed Critical SUZHOU HENGYANG PRECISION MACHINERY CO Ltd
Priority to CN201320508188.1U priority Critical patent/CN203571054U/en
Application granted granted Critical
Publication of CN203571054U publication Critical patent/CN203571054U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a limiting mechanism of a mechanical sealing device. The mechanical sealing device comprises a shaft sleeve of a movable ring, and a pressing cover of a fixed ring. A circle of groove is formed in the portion, protruding out of the pressing cover, of the shaft sleeve in the radial direction. An annular limiting block is arranged in the groove in a clamped mode. A circle of annular groove is formed in the outer side of the annular limiting block in the radial direction. An elastic O-shaped ring is arranged in the annular groove in a sleeved mode. The annular limiting block is divided into two symmetrical semi-arc limiting block bodies which are symmetrically clamped into the groove. The complex procedure of drilling threaded holes in the pressing cover and other complex procedures are not needed, machining cost is reduced, and the production process is simplified; no tool is needed in the installation process and the detaching process, the limiting mechanism can be easily installed and detached completely through manual operation, and the operation is extremely convenient.

Description

A kind of mechanical seal device position-limit mechanism
Technical field
The utility model belongs to mechanical seal field, particularly a kind of mechanical seal device position-limit mechanism.
Background technique
After integrated mechanical sealing production, before installing and using, after all parts assemblings, must adopt position-limit mechanism that the mechanical seal product component assembling is fixed together and forms an entirety, when to be used, can, directly by good the mechanical seal product component integrative installation technology being assembled together, then directly remove position-limit mechanism and can make mechanical seal product work.
With reference to figure 1, what traditional position-limit mechanism adopted is rectangular steel plates structural type, mounting type for boring limiting stopper hole 16 on rectangle limiting stopper 13, at the upper thread mill drilling 15 of mechanical seal cover 12 (or sealing seat etc.), then limiting stopper 13 is stuck in the groove on mechanical seal sleeve 11 end peripheries on one side, the limiting stopper hole 16 of passing on rectangle limiting stopper 13 with screw 14, then be screwed in the tapped hole 15 on mechanical seal cover 12 (or sealing seat etc.), thereby reach the object of fastening machines black box.
As mentioned above, the structure of traditional mechanical seal position-limit mechanism and mounting type, determined must be on the gland component of mechanical seal auger shell pit so that screw fastening; In addition, when mechanical seal is installed, must use the instruments such as spanner that screw is screwed out to limiting stopper is removed, dismounting is all comparatively loaded down with trivial details.
Model utility content
For solving the problems of the technologies described above, the utility model provides a kind of mechanical seal device position-limit mechanism, to simplify the structure of position-limit mechanism, improves the packaging efficiency of mechanical seal device.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of mechanical seal device position-limit mechanism, described mechanical seal device comprises the axle sleeve of rotating ring and the gland of stationary ring, the part that described axle sleeve protrudes described gland is radially provided with a circle groove, in described groove, be arranged with annular stop piece, the outer radial of described annular stop piece is provided with a ring annular groove, is arranged with elasticity O type circle in described annular groove; Described annular stop piece is divided into two symmetrical semicircular arc limiting stoppers, the snapping in described groove of two described semicircular arc limiting stopper symmetries.
Wherein, the cross section of described annular groove is circular arc.
Wherein, rounded, the rectangle of the cross section of described elasticity O type circle, triangle or other polygonals.
Pass through technique scheme, a kind of mechanical seal device position-limit mechanism that the utility model provides, it is identical by two, there is semicircular arc limiting stopper and an elasticity O type circle composition of specified structure, on the outer peripheral surface of semicircular feature, having cross section is the annular groove of circular arc, after treating that two semicircular arc limiting stoppers are fastened in the groove of sleeve end, in the annular groove of the annular stop piece then forming after two semicircular arc limiting stoppers are installed with elasticity O type circle hoop, thereby the pressure spring extruding by mechanical seal inside reaches the object axially fastening, banding by elasticity O type circle reaches radially adeciduate object, its tool has the following advantages:
1. remove the installation requirement that traditional limiting stopper should possess from,, without in loaded down with trivial details operations such as the upper auger shell pits of gland (or sealing seat), saved processing cost, simplified production technology;
While 2. mounting and dismounting, without any instrument, can mount and dismount easily completely by hand, it is very convenient to operate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.
Fig. 1 is a kind of mechanical seal device position-limit mechanism schematic diagram of the prior art;
Fig. 2 is the disclosed a kind of mechanical seal device position-limit mechanism schematic diagram of embodiment;
Fig. 3 is A portion structure for amplifying schematic diagram in Fig. 2.
Numeral in figure:
11. axle sleeve 12. gland 13. limiting stoppers
14. screw 15. tapped hole 16. limiting stopper holes
21. annular stop piece 22. elasticity O type circle 31. annular grooves
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described.
With reference to figure 2 and 3, the mechanical seal device position-limit mechanism that the utility model provides, mechanical seal device comprises the axle sleeve 11 of rotating ring and the gland 12 of stationary ring, the part that axle sleeve 11 protrudes gland 12 is radially provided with a circle groove, in groove, be arranged with annular stop piece 21, the outer radial of annular stop piece 21 is provided with the annular groove 31 that a ring cross-section is circular arc, is arranged with that cross section is rounded, rectangle, triangle or other polygonal elasticity O type circles 22 in annular groove 31; Annular stop piece 21 is divided into two symmetrical semicircular arc limiting stoppers, the snapping in groove of two semicircular arc limiting stopper symmetries.
The utility model is identical by two, semicircular arc limiting stopper and an elasticity O type circle 22 with specified structure form, on the outer peripheral surface of semicircular feature, having cross section is the annular groove 31 of circular arc, after treating that two semicircular arc limiting stoppers are fastened in the groove of axle sleeve 11 ends, then with elasticity O type circle 22, bind round in the annular groove 31 of the annular stop piece 21 forming after two semicircular arc limiting stoppers are installed, thereby the pressure spring extruding by mechanical seal inside reaches the object axially fastening, banding by elasticity O type circle 22 reaches radially adeciduate object.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To the multiple modification of above-described embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (3)

1. a mechanical seal device position-limit mechanism, described mechanical seal device comprises the axle sleeve of rotating ring and the gland of stationary ring, the part that described axle sleeve protrudes described gland is radially provided with a circle groove, it is characterized in that, in described groove, be arranged with annular stop piece, the outer radial of described annular stop piece is provided with a ring annular groove, is arranged with elasticity O type circle in described annular groove; Described annular stop piece is divided into two symmetrical semicircular arc limiting stoppers, the snapping in described groove of two described semicircular arc limiting stopper symmetries.
2. a kind of mechanical seal device position-limit mechanism according to claim 1, is characterized in that, the cross section of described annular groove is circular arc.
3. a kind of mechanical seal device position-limit mechanism according to claim 1 and 2, is characterized in that, the cross section of described elasticity O type circle is rounded, rectangle, triangle or other polygonals.
CN201320508188.1U 2013-08-20 2013-08-20 Limiting mechanism of mechanical sealing device Expired - Fee Related CN203571054U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320508188.1U CN203571054U (en) 2013-08-20 2013-08-20 Limiting mechanism of mechanical sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320508188.1U CN203571054U (en) 2013-08-20 2013-08-20 Limiting mechanism of mechanical sealing device

Publications (1)

Publication Number Publication Date
CN203571054U true CN203571054U (en) 2014-04-30

Family

ID=50538786

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320508188.1U Expired - Fee Related CN203571054U (en) 2013-08-20 2013-08-20 Limiting mechanism of mechanical sealing device

Country Status (1)

Country Link
CN (1) CN203571054U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979332A (en) * 2017-04-27 2017-07-25 中山弗雷德机械有限公司 A kind of mechanical seal position-limit mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106979332A (en) * 2017-04-27 2017-07-25 中山弗雷德机械有限公司 A kind of mechanical seal position-limit mechanism

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GR01 Patent grant
C14 Grant of patent or utility model
DD01 Delivery of document by public notice

Addressee: Suzhou Hengyang Precision Machinery Co., Ltd.

Document name: Notification to Pay the Fees

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Suzhou Hengyang Precision Machinery Co., Ltd.

Document name: Notification of Termination of Patent Right

DD01 Delivery of document by public notice
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140430

Termination date: 20180820

CF01 Termination of patent right due to non-payment of annual fee