CN203258074U - Embedded type single sealing device without sealing cover - Google Patents
Embedded type single sealing device without sealing cover Download PDFInfo
- Publication number
- CN203258074U CN203258074U CN 201220347766 CN201220347766U CN203258074U CN 203258074 U CN203258074 U CN 203258074U CN 201220347766 CN201220347766 CN 201220347766 CN 201220347766 U CN201220347766 U CN 201220347766U CN 203258074 U CN203258074 U CN 203258074U
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- Prior art keywords
- cover
- seat
- ring
- seal
- sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to an embedded type single sealing device without a sealing cover, and belongs to the technical field of mechanical equipment. According to the embedded type single sealing device, a spring box assembly and a movable ring are coaxially installed on a shaft sleeve, a static ring and an anti-rotating pin are installed on the back end portion of a base sleeve body, the base sleeve and the static ring are relatively fixed through the anti-rotation pin, a sealing ring is arranged between the base sleeve and the static ring, and the shaft sleeve is sleeved with the base sleeve. The movable ring is tightly attached to the static ring, and a sealing ring is arranged between the spring box assembly and the shaft sleeve or between the movable ring and the shaft sleeve. The base sleeve body is provided with a connecting hole, and comprises a seal flush liquid inlet and a seal flush liquid outlet, and can also be provided with a fast cold flush liquid inlet and a fast cold flush liquid outlet. The front end of the front end of the base sleeve body can be provided with a throttling sleeve in a fixed mode to throttle one-level flush liquid. Limiting plates are installed on the throttling sleeve, and the embedded type whole can be formed. In the process of mounting and dismounting, the embedded type single sealing device can be mounted on or dismounted from a shaft at a time conveniently and fast, working efficiency and equipment operation reliability are improved, and equipment cost is effectively reduced.
Description
Technical field
The present invention relates to a kind ofly without capping embedded single seal arrangement, the single-end surface mechanical sealing device that in particular do not use mechanical seal cover, can fast install and remove belongs to mechanical equipment technical field.
Background technique
At present, known single mechanical end face seal is to be connected on the machine case by mechanical seal cover or sealing seat, form Seal cage with machine case, a sealing pair (stationary seal ring and moving sealing ring and other black boies) is installed on forms sealing effect in the Seal cage.In fluid machinery, namely often use mechanical seal that the flowing medium of machine such as pump conveying is isolated from the outside unlikely leakage.Figure 1 shows that a kind of single seal arrangement, among Fig. 1, wherein I is pump cover or machine case, II is axle, and III is axle sleeve, and IV is mechanical seal cover, wherein use the end face of mechanical seal cover or sealing seat and machine case such as pump cover to be fixed together, and sealing pair compressed fit together, form static and dynamic sealing, produce sealing effect.When existing mechanical seal is installed, because mechanical seal cover can not pass machine case such as pump cover seal chamber, thereby must at first mechanical seal cover be worn axle, again mechanical seal cover is fixed on machine case such as the pump cover by link such as bolt or double-screw bolt, cause known single mechanical end face seal that following deficiency is arranged: on the one hand in order to guarantee that mechanical seal cover is installed and connected on machine case such as the pump cover smoothly, must between mechanical seal cover and obstacle, leave enough axial mounting distances; When installing, dismantling, change, keep in repair this class mechanical seal, waste time and energy on the other hand.
Summary of the invention
The objective of the invention is to propose without capping embedded single seal arrangement, change known single mechanical end face seal, abolished mechanical seal cover, adopt cover for seat, all place sealing pair in the cover for seat, form Seal cage with running shaft or axle sleeve, and sealing pair be installed in machine case such as the pump cover from a direction integrity, dismounting, change, during maintenance also be disposable from the axle integral body split out.
The present invention propose without capping embedded single seal arrangement, comprise cover for seat, axle sleeve, spring case assembly (comprising spring, fixed block, structural member etc.), rotating ring, stationary ring and stop pin; Described spring case assembly and rotating ring are coaxial to be installed on the axle sleeve; Described stationary ring and stop pin are installed in the rearward end of described cover for seat body, and cover for seat is relative fixing by stop pin with stationary ring, is provided with seal ring between cover for seat and the stationary ring; Circular diameter is greater than the sleeve outer circle diameter in the described cover for seat; Fit tightly between described rotating ring and the stationary ring, between spring case assembly or rotating ring and axle sleeve, be provided with seal ring.
Above-mentioned without in the capping embedded single seal arrangement, the front end of described cover for seat is provided with attachment hole; Also comprise the seal flush liquid entrance on the cover for seat body, the seal flush liquid outlet, and can be provided with chilling washing solution entrance and chilling washing solution exhaust port.
Above-mentioned the front end of described cover for seat body can also fixedly mount orifice sleeve without in the capping embedded single seal arrangement, and seal flush liquid is implemented throttling.
Above-mentioned without in the capping embedded single seal arrangement, can also fixedly mount limiting board on the front end of described cover for seat body or the orifice sleeve, so that form an integral body without capping embedded single seal arrangement, namely in the integrated cavity that is installed on housing and running shaft formation.
The present invention propose without capping embedded single seal arrangement, its advantage is:
1, the present invention propose without capping embedded single seal arrangement, abolished mechanical seal cover, adopt cover for seat, sealing pair is all placed in the cover for seat, form Seal cage with rotary sleeve or axle, sealing pair can be from a direction integral installation in machine case such as pump cover during installation, needs to seal arrangement dismantle, change, when keeping in repair, also can be disposable from the axle integral body split out, convenient and swift, greatly improved working efficiency.
2, the present invention propose without capping embedded single seal arrangement, do not need to leave between seal chamber and obstacle is to install or remove the axial distance that mechanical seal cover is reserved originally, thereby can effectively reduce the axial dimension of machinery equipment such as pump, thereby improved the intensity of machinery equipment such as pump shaft, and improved the operational reliability of equipment.
3, the present invention propose without capping embedded single seal arrangement, simple and reasonable, effectively reduce equipment cost.
Description of drawings
Fig. 1 is the structural representation of the fixing single seal arrangement of use mechanical seal cover and machine case end face.
Fig. 2 is the structural representation without capping embedded single seal arrangement that the present invention proposes.
Fig. 3, Fig. 4 and Fig. 5 are three embodiments' of seal arrangement of the present invention use phase diagrams.
Among Fig. 2-Fig. 5, the 1st, cover for seat, the 2nd, axle sleeve, 3 is first seal rings, the 4th, spring case assembly, the 5th, seal flush liquid entrance, the 6th, rotating ring, the 7th, stationary ring, 8 is second seal rings, the 9th, and stop pin, 10 is first screws, the 11st, housing, the 12nd, running shaft, 13 is second screws, the 14th, limiting board, the 15th, chilling washing solution entrance, the 16th, water seal, 17 is the 3rd seal rings, the 18th, the outlet of chilling washing solution, the 19th, seal flush liquid exhaust port, the 20th, orifice sleeve.
Embodiment
The present invention propose without capping embedded single seal arrangement, its structure comprises cover for seat 1, axle sleeve 2, spring case assembly 4, rotating ring 6, stationary ring 7 and stop pin 9 as shown in Figure 2.Spring case assembly 4 and rotating ring 7 be coaxial being installed on the axle sleeve 2 successively from left to right.Stationary ring 7 and stop pin 9 are installed in the body rearward end of described cover for seat 1, and cover for seat 1 is relative fixing by stop pin 9 with stationary ring 7, is provided with the second seal ring 8 between cover for seat 1 and the stationary ring 7.Cover for seat 1 is enclosed within outside the axle sleeve 2, fits tightly between rotating ring 6 and the stationary ring 7, is provided with the first seal ring 3 between spring case assembly 4 or rotating ring 6 and the axle sleeve 2.The body of cover for seat 1 is provided with seal flush liquid entrance 5.
Above-mentioned the front end of cover for seat 1 is provided with connecting screw hole without capping embedded single seal arrangement, and cover for seat 1 is fixing with housing 11 by the first screw 10, and axle sleeve 2 is enclosed within on the running shaft 12, as shown in Figure 3.
Among Fig. 4, orifice sleeve 20 is connected to cover for seat 1 front end by the first screw 10, and jointly is fixedly mounted on the housing 11 with cover for seat 1.Limiting board 14 is fixed on the orifice sleeve 20 by the second screw 13.Washing solution enters into seal chamber and can be subject to orifice sleeve 20 throttlings by sealflushing entrance 5, discharges by seal flush liquid exhaust port 19.
Above-mentioned without capping embedded single seal arrangement, also comprise chilling washing solution entrance 15, chilling washing solution outlet 18, as shown in Figure 5.Water seal 16 places cover for seat 1 right back section.For preventing that fed sheet of a media from spilling by the gap between axle sleeve 2 and the running shaft 12, can implement sealing by the 3rd seal ring 17.
The present invention propose without capping embedded single seal arrangement, do not use mechanical seal cover, and the employing cover for seat, the mechanical single seal pair is all placed in the Seal cage of cover for seat and axle sleeve or axle formation, whole seal arrangement is installed on Seal cage from a direction, dismounting, then is opposite direction when installing when changing sealing.In the seal arrangement of the present invention is the design form of uniqueness of the present invention without the single seal arrangement of capping, the following part deformation form of giving birth to therefrom, installation position, rotating ring compacted form, spring case kit form, axle sleeve form, cover for seat distressed structure that comprises seal ring mounting point, seal ring quantity, stop pin etc. also belongs to inventive concept of the present invention.
Introduce working principle and the working procedure of the seal arrangement of the present invention's proposition below in conjunction with accompanying drawing:
Among Fig. 2, cover for seat 1 is fixed on the machine case.Sealing pair stationary ring 7 cooperates installation with cover for seat 1, and avoids stationary ring 7 to rotate by stop pin 9.Sealing pair rotating ring 6 is set on the axle sleeve 2, and by spring case assembly 4 so that rotating ring 6 fit tightly with stationary ring 7.Axle sleeve 2 is fixed on the running shaft by axle key and compressing member or Cock screw and rotates together with the axis.The installation direction that need to prove this seal style is fixed according to the orientation situation of seal chamber.
Working principle without capping embedded single seal arrangement shown in Figure 2 is: use cover for seat 1 and 7 fixed installations of sealing pair stationary ring, sealing pair rotating ring 6 is set on the axle sleeve 2, cover for seat 1 is fixed on the machine case 11 on the one hand, on the other hand axle sleeve 2 tightenings or be pressed on the machine running shaft 12, by spring case assembly 4 so that sealing pair rotating ring 6 compresses with stationary ring 7 fits together, so just form static and dynamic sealing, so that the machine fed sheet of a media is isolated from the outside, produced sealing effect.As shown in Figure 3.The working procedure of seal arrangement of the present invention is that cover for seat 1 is fixed on the machine case 11 with sealing pair stationary ring 7 and is state of rest; Spring case assembly 4 and sealing pair rotating ring 6 are fixed on the axle sleeve 2 relative with axle sleeve static, but they are all with 12 rotations of machine running shaft.
Seal arrangement of the present invention in order to adapt to different installations and operating mode needs, can have Fig. 4 and different structure form shown in Figure 5:
As shown in Figure 4, seal arrangement of the present invention also comprises orifice sleeve 20 before cover for seat 1; Limiting board 14 partial insertions are fixed on limiting board 14 on the orifice sleeve 20 by the second screw 13 in axle sleeve 2 grooves; By the first screw 10 orifice sleeve 20 and front cover for seat 1 are fixedly mounted on the housing 11 together, the sealing that has namely formed a unit loading type is whole.Like this, seal arrangement mounting or dismounting of the present invention, maintenance etc. are more convenient.Washing solution is to enter into seal chamber by sealflushing entrance 5, is subject to orifice sleeve 20 throttlings, discharges by seal flush liquid exhaust port 19.
As shown in Figure 5, for special application, for satisfying chilling flushing needs, seal arrangement of the present invention also arranges chilling washing solution entrance 15 and chilling washing solution outlet 18 at cover for seat 1 rear portion, and implements throttling by 16 pairs of chilling washing solutions of water seal.For preventing that fed sheet of a media from spilling by the gap between axle sleeve 2 and the running shaft 12, can implement sealing by the 3rd seal ring 17.
Claims (4)
1. one kind without capping embedded single seal arrangement, it is characterized in that this list seal arrangement comprises cover for seat, axle sleeve, spring case assembly, rotating ring, stationary ring and stop pin; Described spring case assembly and rotating ring are coaxial to be installed on the axle sleeve; Described stationary ring and stop pin are installed in the rearward end of described cover for seat body, and cover for seat is relative fixing by stop pin with stationary ring, is provided with seal ring between cover for seat and the stationary ring; Circular diameter is greater than the sleeve outer circle diameter in the described cover for seat; Fit tightly between described rotating ring and the stationary ring.
2. as claimed in claim 1 without capping embedded single seal arrangement, it is characterized in that the body of cover for seat is provided with attachment hole, and comprise the seal flush liquid entrance; The seal flush liquid outlet can also be comprised on the body of this cover for seat, and chilling washing solution entrance and chilling washing solution exhaust port can be provided with.
3. as claimed in claim 1 without capping embedded single seal arrangement, it is characterized in that the body front end of this cover for seat can also fixedly mount orifice sleeve, seal flush liquid is implemented throttling.
4. as claimed in claim 1 without capping embedded single seal arrangement, it is characterized in that to fixedly mount limiting board on the body front end of this cover for seat or the orifice sleeve, so that form an integral body without capping embedded single seal arrangement, namely in the integrated cavity that is installed on housing and running shaft formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347766 CN203258074U (en) | 2012-07-18 | 2012-07-18 | Embedded type single sealing device without sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347766 CN203258074U (en) | 2012-07-18 | 2012-07-18 | Embedded type single sealing device without sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258074U true CN203258074U (en) | 2013-10-30 |
Family
ID=49470637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347766 Expired - Fee Related CN203258074U (en) | 2012-07-18 | 2012-07-18 | Embedded type single sealing device without sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258074U (en) |
-
2012
- 2012-07-18 CN CN 201220347766 patent/CN203258074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Leade Institute of Pump Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Leade Institute of Pump Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |