CN203258072U - Assembling type series connection sealing device without sealing cover - Google Patents
Assembling type series connection sealing device without sealing cover Download PDFInfo
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- CN203258072U CN203258072U CN 201220347689 CN201220347689U CN203258072U CN 203258072 U CN203258072 U CN 203258072U CN 201220347689 CN201220347689 CN 201220347689 CN 201220347689 U CN201220347689 U CN 201220347689U CN 203258072 U CN203258072 U CN 203258072U
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- seat
- ring
- cover
- sealing device
- sleeve
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Abstract
The utility model relates to an assembling type series connection sealing device without a sealing cover, and belongs to the technical field of mechanical equipment. According to the assembling type series connection sealing device, a front base sleeve and a back base sleeve are installed in a connection mode, and two pairs of sealing pairs and a spring box assembly are installed in a cavity body formed by the front base sleeve, the back base sleeve and a shaft sleeve. Two spring box assemblies and a movable ring are coaxially installed on the shaft sleeve, and two static rings are installed on the front base sleeve and the back base sleeve respectively and are fixed through anti-rotating pins. The shaft sleeve is sleeved with the front base sleeve and the back base sleeve, and a sealing ring is arranged between relative static pieces. The movable ring of the two pairs of sealing pairs and the static rings are attached tightly. The front base sleeve is provided with a connecting hole, and comprises a seal flush liquid inlet. The back base sleeve comprises a seal flush liquid inlet and a seal flush liquid outlet. The front base sleeve can be provided with a throttling sleeve in a fixed mode to throttle one-level flush liquid. The lengthened front base sleeve is fixedly connected with the shortened back base sleeve through bolts. According to the sealing device, the assembling type whole can be formed by installing limiting plates, mounting and dismounting are convenient and fast, working efficiency is improved, and equipment cost is reduced.
Description
Technical field
The present invention relates to a kind ofly without capping aggregation type series sealing device, two seal arrangements that single mechanical end face seal is in series in particular do not use mechanical seal cover, can fast installing and removing belong to mechanical equipment technical field.
Background technique
At present, known tandem mechanical seal is to be connected on the machine case by mechanical seal cover or sealing seat, form Seal cage with machine case, two sealing pairs (stationary seal ring and moving sealing ring and other black boies) are installed in series forms the sealing effect that two mechanical single seals are connected and used in Seal cage.In fluid machinery, namely often use tandem 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 series sealing device, 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 the series connection of two sealing pairs compressed fit together, form the two-stage static and dynamic sealing, produce sealing effect.When existing tandem 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 tandem mechanical 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 aggregation type series sealing device, change known tandem mechanical seal, abolished mechanical seal cover, adopt two sealed socket sleeves of front cover for seat and rear cover for seat, two sealing pairs are all placed in the Seal cage that the cover for seat that links together and running shaft or axle sleeve form.Two sealing pairs are to be installed in machine case such as the pump cover from a direction during installation, dismounting, change, can be disposable during maintenance from the axle integral body split out.
The present invention propose without capping aggregation type series sealing device, comprise front cover for seat, rear cover for seat, axle sleeve, baffle ring, the first spring case assembly, the second spring case assembly, the first rotating ring, the second rotating ring, the first stationary ring, the second stationary ring, the first stop pin and the second stop pin; Described the first spring case assembly, the second spring case assembly and the first rotating ring, the second rotating ring is coaxial is installed on the axle sleeve; Described the first stationary ring and the first stop pin are installed in described front stall and put, and front cover for seat is relative fixing by the first stop pin with the first stationary ring, is provided with seal ring between front cover for seat and the first stationary ring; Described the second stationary ring and the second stop pin are installed in described back seat and put, and rear cover for seat is relative fixing by the second stop pin with the second stationary ring, is provided with seal ring between rear cover for seat and the second stationary ring; Described front cover for seat and rear cover for seat inner circle diameter are all greater than the sleeve outer circle diameter; Fit tightly between described the first rotating ring and the first stationary ring; Fit tightly between described the second rotating ring and the second stationary ring; Described baffle ring is fixed on front stall by the first screw and puts; Be provided with seal ring between described front cover for seat and the rear cover for seat, and by the fixed installation of the second screw.
Above-mentioned without in the capping aggregation type series sealing device, the body of described front cover for seat is provided with attachment hole; Also comprise the seal flush liquid entrance on the body of described front cover for seat; Comprise the seal flush liquid entrance and exit on the body of described rear cover for seat.
Above-mentioned without in the capping aggregation type series sealing device, the body front end of described front cover for seat fixed installation orifice sleeve is implemented throttling to the one-level washing solution.
Above-mentionedly fixedly mount limiting board without in the capping aggregation type series sealing device on the body front end of described front cover for seat or the orifice sleeve, this device namely forms an integral body, can integratedly be installed in the cavity that housing and running shaft form.
Above-mentioned described front stall cover has carried out axial lengthening without in the capping aggregation type series sealing device, and the back seat cover has carried out axial shortening, and cover for seat is fixedly connected with front cover for seat end face by screw after this.
The present invention propose without capping aggregation type series sealing device, its advantage is:
1, the present invention propose without capping aggregation type series sealing device, abolished mechanical seal cover, adopt front cover for seat and rear cover for seat, place front cover for seat, rear cover for seat and rotary sleeve or axle to form Seal cage the secondary series connection of two static and dynamic sealings, front cover for seat and rear cover for seat are connected and fixed during installation, two sealing pairs are installed in machine case such as the pump cover from a direction with serial fashion, needs to seal arrangement dismantle, change, when keeping in repair, can be disposable from the axle integral body split out, convenient and swift, greatly improved working efficiency.
2, the present invention propose without capping aggregation type series sealing device, 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 aggregation type series sealing device, processing is easily gone, and effectively reduces equipment cost.
Description of drawings
Fig. 1 is the structural representation of the fixing series sealing device of use mechanical seal cover and machine case end face.
Fig. 2 is the structural representation without capping aggregation type series sealing device that the present invention proposes.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are four embodiments' of seal arrangement of the present invention use phase diagrams.
Among Fig. 2-Fig. 6, the 1st, front cover for seat, the 2nd, axle sleeve, 3 is first seal rings, and 4 is first spring case assemblies, the 5th, and one-level washing solution entrance, 6 is first rotating rings, and 7 is first stationary rings, and 8 is second seal rings, 9 is first stop pins, and 10 is first screws, the 11st, and baffle ring, 12 is the 3rd seal rings, and 13 is second screws, the 14th, and rear cover for seat, 15 is the 4th seal rings, and 16 is second spring case assemblies, and 17 is second rotating rings, 18 is second stationary rings, and 19 is the 5th seal rings, and 20 is second stop pins, the 21st, secondary washing solution entrance, the outlet of 22 secondary washing solutions, the 23rd, secondary liquor charging ring, 24 is the 3rd screws, the 25th, and housing, the 26th, running shaft, 27 is the 4th screws, the 28th, and limiting board, the 29th, orifice sleeve, the 30th, the outlet of one-level washing solution, the 31st, chilling washing solution entrance, the 32nd, water seal, 33 is the 6th seal rings, the 34th, and the outlet of chilling washing solution, the 35th, one-level liquor charging ring.
Embodiment
The present invention propose without capping aggregation type series sealing device, its structure comprises front cover for seat 1 as shown in Figure 2, axle sleeve 2, rear cover for seat 14, the first stop pins 9, the first rotating ring 6, the first stationary rings 7, the first spring case assemblies 4, secondary liquor charging ring 23, the second spring case assemblies 16, the second rotating rings 17, the second stationary ring 18, the second stop pin 20, the first screws 10, baffle ring 11 and the second screw 13.The first spring case assembly 4, the first rotating ring 6, secondary liquor charging ring 23, the second spring case assembly 16 and the second rotating ring 17 be coaxial being installed on the axle sleeve 2 successively from left to right.Baffle ring 11 is fixedly mounted on the rear portion of front cover for seat 1 by the first screw 10.The first stationary ring 7 and the first stop pin 9 are installed on the front cover for seat 1, and front cover for seat 1 is relative fixing by the first stop pin 9 with the first stationary ring 7, is provided with the second seal ring 8 between front cover for seat 1 and the first stationary ring 7.The second stationary ring 18 and the second stop pin 20 are installed on the described rear cover for seat 14, and rear cover for seat 14 is relative fixing by the second stop pin 20 with the second stationary ring 18, is provided with the 5th seal ring 19 between rear cover for seat 14 and the second stationary ring 18.By 13 connections of the second screw, be provided with the 3rd seal ring 12 between the two between front cover for seat 1 and the rear cover for seat 14.Front cover for seat 1 and rear cover for seat 14 are enclosed within outside the axle sleeve 2.Fit tightly between the first rotating ring 6 and the first stationary ring 7, be provided with the first seal ring 3 between the first rotating ring 6 or the first spring case assembly 4 and the axle sleeve 2.Secondary liquor charging ring 23 and the second spring case assembly 16 are installed on the axle sleeve 2.Fit tightly between the second rotating ring 17 and the second stationary ring 18, be provided with the 4th seal ring 15 between the second rotating ring 17 or the second spring case assembly 16 and the axle sleeve 2.The body of front cover for seat 1 is provided with one-level washing solution entrance 5.The body of rear cover for seat is provided with secondary washing solution entrance 21 and secondary washing solution outlet 22.
Above-mentioned the front end of front cover for seat 1 is provided with attachment hole without capping aggregation type series sealing device, and front cover for seat 1 is fixing with housing 25 by the 3rd screw 24, and jointly is installed in the housing 25, as shown in Figure 3 with rear cover for seat 14.Axle sleeve 2 is enclosed within on the running shaft 26.
Above-mentioned without capping aggregation type series sealing device, orifice sleeve 29 and front cover for seat 1 are fixed on the housing 25 jointly by the 3rd screw 24, limiting board 28 is fixed on the orifice sleeve 29 by the 4th screw 27, and partial insertion is in axle sleeve 2 grooves, like this, above-mentioned namely to have formed the sealing of a unit loading type without capping aggregation type series sealing device whole, as shown in Figure 4.One-level liquor charging ring 35 can be set at the primary seal place.
Above-mentioned without capping aggregation type series sealing device, on rear cover for seat 14, also comprise chilling washing solution entrance 31, chilling washing solution outlet 34, as shown in Figure 5.Water seal 32 places on the rear cover for seat 14.For preventing that fed sheet of a media from spilling by the gap between axle sleeve 2 and the running shaft 26, can implement sealing by the 6th seal ring 33.
Above-mentioned without capping aggregation type series sealing device, front cover for seat 1 has been carried out axial lengthening, and rear cover for seat 14 has been carried out axial shortening, as shown in Figure 6.Equally, as Fig. 5, chilling washing solution entrance, the outlet of chilling washing solution and water seal can also be set on rear cover for seat 14.
The present invention propose without capping aggregation type series sealing device, do not use mechanical seal cover, and adopt front cover for seat and rear cover for seat, two single sealing pair series connection are placed in the Seal cage of front and back cover for seat and axle sleeve or axle formation, whole seal arrangement is installed on the 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 capping aggregation type series sealing device, the following part deformation form of giving birth to therefrom, installation position, rotating ring compacted form, spring case kit form, axle sleeve form, interstage sleeve form, front cover for seat and rear 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 series sealing device of the present invention's proposition below in conjunction with accompanying drawing:
Among Fig. 2, by 13 connections of the second screw, front cover for seat 1 cooperates with rear cover for seat 14 and is installed on the machine case between front cover for seat 1 and the rear cover for seat 14.Baffle ring 11 is fixedly mounted on the rear portion of front cover for seat 1 by the first screw 10.The first stationary ring 7 cooperates installation with front cover for seat 1, and avoids the first stationary ring 7 to rotate by the first stop pin 9.The first rotating ring 6 is set on the axle sleeve 2, and by the first spring case assembly 4 so that the first rotating ring 6 and the first stationary ring 7 fit tightly.18 cooperations of the second stationary ring are installed on the rear cover for seat 14, and avoid the second stationary ring 18 to rotate by the second stop pin 20.The second rotating ring 17 is set on the axle sleeve 2, and by the second spring case assembly 16 so that the second rotating ring 17 and the second stationary ring 18 fit tightly.Secondary liquor charging ring 23 is installed on the axle sleeve 2 and with running shaft and rotates.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 aggregation type series sealing device shown in Figure 2 is: use the first screw 10 that baffle ring 11 is fixedly mounted on the front cover for seat 1, prevent from throwing off on the first stationary ring 7 the past cover for seat 1.The first spring case assembly 4, the first rotating ring 6, secondary liquor charging ring 23, the second spring case assembly 16 and the second rotating ring 17 be coaxial being installed on the axle sleeve 2 successively from left to right.Use on the one hand the second screw 13 with front cover for seat 1 and rear cover for seat 14 connections, use the 3rd screw 24 that front cover for seat 4 and rear cover for seat 14 are fixed on the machine case 25, on the other hand axle sleeve 2 tightenings or be pressed on the machine running shaft 26, as shown in Figure 3.So that the first rotating ring 6 and the first stationary ring 7 fit tightly, so just formed first pair of static and dynamic sealing by the first spring case assembly 4; So that the second rotating ring 17 and the second stationary ring 18 fit tightly, so just formed second pair of static and dynamic sealing by the second spring case assembly 16.So that the machine fed sheet of a media is isolated from the outside, produce sealing effect on the one hand, on the other hand also so that the own fed sheet of a media isolation of extraneous seal flush liquid and machine.The working procedure of seal arrangement of the present invention is that front cover for seat 1, rear cover for seat 14, baffle ring 11, the first stationary ring 7 and the second stationary ring 18 are state of rest with machine case; The first rotating ring 6, the first spring case assembly 4, secondary liquor charging ring 23, the second spring case assembly 16 and the second rotating ring 17 are relative static with axle sleeve 2, but they are all with 26 rotations of machine running shaft.
Series sealing device of the present invention in order to adapt to different installations and operating mode needs, can also have Fig. 4, Fig. 5 and different structure form shown in Figure 6:
As shown in Figure 4, seal arrangement of the present invention also comprises orifice sleeve 29; Limiting board 28 partial insertions are fixedly mounted on limiting board 28 on the orifice sleeve 29 by the 4th screw 27 in axle sleeve 2 grooves; By the 3rd screw 24 orifice sleeve 29 and front cover for seat 1 are fixedly mounted on the housing 25 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.
For special application, for satisfying chilling flushing needs, seal arrangement of the present invention also arranges chilling washing solution entrance 31 on rear cover for seat 14, chilling washing solution outlet 34, and water seal 32, as shown in Figure 5.For preventing that fed sheet of a media from spilling by the gap between axle sleeve 2 and the running shaft 26, can implement sealing by the 6th seal ring 33.
Provided above-mentioned distressed structure without front cover for seat 1 and rear cover for seat 14 in the capping aggregation type series sealing device among Fig. 6, both Placements have also been done respective change, and front cover for seat 1 has been carried out axial lengthening, and rear cover for seat 14 has been carried out axial shortening.
Claims (5)
1. one kind without capping aggregation type series sealing device, it is characterized in that this series sealing device comprises front cover for seat, rear cover for seat, axle sleeve, baffle ring, the first spring case assembly, the second spring case assembly, the first rotating ring, the second rotating ring, the first stationary ring, the second stationary ring, the first stop pin and the second stop pin; Described the first spring case assembly, the second spring case assembly and the first rotating ring, the second rotating ring is coaxial is installed on the axle sleeve; Described the first stationary ring and the first stop pin are installed in described front stall and put, and front cover for seat is relative fixing by the first stop pin with the first stationary ring, is provided with seal ring between front cover for seat and the first stationary ring; Described the second stationary ring and the second stop pin are installed in described back seat and put, and rear cover for seat is relative fixing by the second stop pin with the second stationary ring, is provided with seal ring between rear cover for seat and the second stationary ring; Described front cover for seat and rear cover for seat inner circle diameter are all greater than the sleeve outer circle diameter; Fit tightly between described the first rotating ring and the first stationary ring; Fit tightly between described the second rotating ring and the second stationary ring; Described baffle ring is fixed on front stall by the first screw and puts; Be provided with seal ring between described front cover for seat and the rear cover for seat, and by the fixed installation of the second screw.
2. as claimed in claim 1 without capping aggregation type series sealing device, it is characterized in that the body of this front cover for seat is provided with attachment hole; Comprise the seal flush liquid entrance on the body of front cover for seat, comprise the seal flush liquid entrance and exit on the body of rear cover for seat.
3. as claimed in claim 1 without capping aggregation type series sealing device, it is characterized in that the body front end of this front cover for seat fixedly mounts orifice sleeve, the one-level washing solution is implemented throttling.
4. as claimed in claim 1 without capping aggregation type series sealing device, it is characterized in that fixedly mounting limiting board at body front end or the orifice sleeve of this front cover for seat, this device namely forms an integral body, can integratedly be installed in the cavity of housing and running shaft formation.
5. as claimed in claim 1 without capping aggregation type series sealing device, it is characterized in that the front stall cover has carried out axial lengthening, the back seat cover has carried out axial shortening, and cover for seat is fixedly connected with front cover for seat end face by screw after this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347689 CN203258072U (en) | 2012-07-18 | 2012-07-18 | Assembling type series connection sealing device without sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347689 CN203258072U (en) | 2012-07-18 | 2012-07-18 | Assembling type series connection sealing device without sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258072U true CN203258072U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347689 Expired - Fee Related CN203258072U (en) | 2012-07-18 | 2012-07-18 | Assembling type series connection sealing device without sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574033A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Assembling serial sealing device without sealing cover |
-
2012
- 2012-07-18 CN CN 201220347689 patent/CN203258072U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574033A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Assembling serial sealing device without sealing cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 3201-3202 room 35, Jinhe International Building, No. 215011 lion Road, Suzhou hi tech Development Zone, Jiangsu, China Patentee after: Suzhou Leade Institute of Pump Technology Co., Ltd. Patentee after: Wang Dejun Address before: East Road, Suzhou City Industrial Park in Jiangsu province 215028 No. 88 2.5 Industrial Park A3 Building 1 floor room 101 Patentee before: Suzhou Leade Institute of Pump Technology Co., Ltd. Patentee before: Wang Dejun |
|
| 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 |