CN206694314U - Mechanical seal structure and circulating pump - Google Patents
Mechanical seal structure and circulating pump Download PDFInfo
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- CN206694314U CN206694314U CN201720506141.XU CN201720506141U CN206694314U CN 206694314 U CN206694314 U CN 206694314U CN 201720506141 U CN201720506141 U CN 201720506141U CN 206694314 U CN206694314 U CN 206694314U
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- ring
- stationary ring
- main shaft
- rotating ring
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- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 17
- 230000003068 static effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- 206010044565 Tremor Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
It the utility model is related to technical field of mechanical, more particularly to a kind of mechanical seal structure and circulating pump, including main shaft, rotating ring, stationary ring and stationary seat；Rotating ring is coaxially installed on main shaft and can rotated with main shaft；Stationary ring and stationary seat are coaxially set on main shaft, stationary seat relative main remains stationary；Dynamic clamping head and quiet clamping head is provided between stationary ring and stationary seat, dynamic clamping head and quiet clamping head is used to make the upper surface of stationary ring and the lower surface of rotating ring contact with each other；Gas passage is provided with stationary ring, for compressed air to be imported between the upper surface of stationary ring and the lower surface of rotating ring.Air seal is realized when forming air film can stably between rotating ring lower surface and stationary ring upper surface, reduces the frictional resistance of rotating ring rotation, the presence of air film also reduces mechanical high frequency and trembled；Unnecessary gas discharge reaches the effect of radiating, extends the service life of mechanical structure.
Description
Technical field
Technical field of mechanical is the utility model is related to, more particularly, to a kind of mechanical seal structure and circulating pump.
Background technology
Mechanical seal refer to by least one pair of perpendicular to the end face of rotation axis Fluid pressure and compensation mechanism elastic force (or
Magnetic force) in the presence of and the cooperation of auxiliary seal under keep be bonded and formed with respect to slip prevent fluid leak dress
Put.Elastic force load maintainer and the mechanical seal that auxiliary seal is metallicity line pipe, we are referred to as the wavy metal seal of tube.Light-duty
In sealing, also make auxiliary seal using rubber bellows, rubber bellows elastic force is limited, generally requires and is aided with spring to expire
Foot loading elastic force." mechanical seal " is generally referred to as " machine envelope " by people.
Existing mechanical seal is fully to be bonded seamless to realize the sealing so as to anti-stopping leak by dynamic and static two minute surfaces of ring
Leakage, thus will be failed when the speed of mainshaft is more than 3000 revs/min and high frequency flutter excessive because of frictional heat.
Utility model content
The purpose of this utility model is to provide a kind of mechanical seal structure and circulating pump solve machine in the prior art
Tool be sealed in the speed of mainshaft it is too high when because frictional heat is excessive and high frequency flutter the technical problem that fails.
On the one hand, the utility model provides a kind of mechanical seal structure, including main shaft, rotating ring, stationary ring, stationary seat and air
Compression set；
The rotating ring is coaxially installed on the main shaft and can rotated with the main shaft；The stationary ring and the stationary seat
Coaxially it is set on the main shaft, the relatively described main shaft remains stationary of the stationary seat；Between the stationary ring and the stationary seat
Dynamic clamping head and quiet clamping head is provided with, the upper surface that the dynamic clamping head and quiet clamping head is used to make the stationary ring is with the lower surface phase mutual connection of the rotating ring
Touch；Gas passage is provided with the stationary ring, for the upper surface that compressed air is imported into the stationary ring and the rotating ring
Between lower surface.
Further, the gas passage has air inlet and gas outlet, and the air inlet is arranged on the outer of the stationary ring
On side face, the gas outlet is arranged on the upper surface that the stationary ring is used to contact with the rotating ring.
Further, the gas passage includes the coaxial annular cavity being arranged in the stationary ring, the toroidal cavity
Bottom connected with the air inlet, the top of the toroidal cavity connects with the gas outlet.
Further, the air inlet is two, and is symmetricly set on the outer peripheral face of the stationary ring；The gas outlet is
Several, annular is distributed on the upper surface of the stationary ring centered on the central shaft of the stationary ring.
Further, the control assembly for controlling the main axis is provided with the stationary seat, when the elasticity
When return unit is to the pressure balance to the stationary ring of the elastic force of the stationary ring and compressed air, the control assembly controls the master
Axle rotates.
Further, the control assembly include be used for detect the displacement of the stationary ring vertically displacement transducer and
For controlling the controller of the main shaft start and stop, institute's displacement sensors are connected with the controller signals.
Further, by positioning pin connection between the rotating ring and the main shaft, and set in the upper surface of the rotating ring
Pressing plate is equipped with, the pressing plate is fixed on the main shaft, for carrying out axial limiting to the rotating ring.
Further, the material of the stationary ring is graphite.
Further, the dynamic clamping head and quiet clamping head is spring.
On the other hand, the utility model provides a kind of circulating pump, including circulating pump body and air compression plant, described to follow
Any described mechanical seal structure of above-mentioned technical proposal offer is provided on ring pump body, the air compression plant with
The gas passage connection, for conveying compressed gas into gas passage.
A kind of mechanical seal structure and circulating pump provided by the utility model can reach following beneficial effect：
A kind of mechanical seal structure and circulating pump provided by the utility model, including main shaft, rotating ring, stationary ring and stationary ring
Seat, rotating ring be arranged on main shaft and can with main shaft rotates and axle is rotated to transmit moment of torsion centered on main shaft.In initial shape
Under state, the lower surface of rotating ring contacts sealing with the upper surface of stationary ring, realizes mechanical seal.Before main shaft is started, set on stationary ring
Compressed air is imported between the upper surface of stationary ring and the lower surface of rotating ring by the gas passage put, and gas pressure intensity is equal everywhere,
Compressed air imposes identical pressure to rotating ring and stationary ring, and because rotating ring is fixed on main shaft, rotating ring will not relative main shifting
It is dynamic, and stationary ring is actively set on main shaft, pressure caused by compressed air promotes stationary ring on main shaft away from rotating ring
Direction is moved, so that stationary ring separates with rotating ring from composition surface before, when dynamic clamping head and quiet clamping head is to elastic force caused by stationary ring and pressure
Contracting air is mutually balanced to the pressure of stationary ring, and compressed air forms stable gas between the upper surface of stationary ring and the lower surface of rotating ring
Film, then start main shaft rotation, main shaft drives rotating ring rotation to transmit moment of torsion, and stationary ring separates with rotating ring to be produced with the rotation of rotating ring
Raw frictional resistance, the presence of air film substantially reduce mechanical high frequency and trembled, while unnecessary gas is discharged, and take away main shaft and revolve at a high speed
Caused heat during turning, reach the effect of sealing and radiating, extend the service life of mechanical structure, the machinery is installed
The circulating pump of sealing structure has all of above beneficial effect.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is mechanical seal structure of the prior art；
Fig. 2 is a kind of original state structural representation for mechanical seal structure that the utility model embodiment one provides；
Fig. 3 is a kind of working state structure schematic diagram for mechanical seal structure that the utility model embodiment one provides；
Fig. 4 is the enlarged drawing of A in Fig. 3.
Icon：1- machines seal seat；2- main shafts；3- stationary rings；4- rotating rings；5- springs；6- stationary seats；7- pressing plates；8-
Gas passage；8-1- air inlets；8-2- gas outlets；9- housings；9-1 air inlet pipe；9-2- escape pipes.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under " etc. the orientation of instruction or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that to limitation of the present utility model.In addition, term " first ", " second " are only used for describing purpose, and can not manage
Solve to indicate or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for the ordinary skill in the art, can be understood with concrete condition on
State concrete meaning of the term in the utility model.
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Reference picture 1, mechanical seal structure of the prior art contact patch by the lower surface of rotating ring 4 and the upper surface of stationary ring 3
Conjunction forms sealing surface and realizes that sealing prevents from revealing, although the upper surface finish of rotating ring lower surface and stationary ring is high, in 1 turn of main shaft
When speed is more than 3000 revs/min, machine still because of rotating ring, stationary ring contact can produce that frictional heat is excessive and high frequency flutter fail.
Embodiment one
Reference picture 2, the present embodiment provide a kind of mechanical seal structure, including main shaft, rotating ring, stationary ring and stationary seat；
Rotating ring is coaxially installed on main shaft and can rotated with main shaft；Stationary ring and stationary seat are coaxially set on main shaft, quiet
Ring seat relative main remains stationary；Dynamic clamping head and quiet clamping head is provided between stationary ring and stationary seat, dynamic clamping head and quiet clamping head is used to make stationary ring
Upper surface and the lower surface of rotating ring contact with each other；Gas passage is provided with stationary ring, for compressed air to be imported into stationary ring
Between upper surface and the lower surface of rotating ring.
Stationary seat is fixed on machine envelope seat 1 in actual use, to keep the static of relative main.
Reference picture 3, rotating ring be arranged on main shaft and can with main shaft rotates and axle is rotated to transmit centered on main shaft
Moment of torsion.In an initial condition, the lower surface of rotating ring contacts sealing with the upper surface of stationary ring, realizes mechanical seal.Starting main shaft
Before, compressed air is imported between the upper surface of stationary ring and the lower surface of rotating ring by the gas passage set on stationary ring, gas
Pressure is equal everywhere, and compressed air imposes identical pressure to rotating ring and stationary ring, and because rotating ring is fixed on main shaft, rotating ring is not
Meeting relative main movement, and stationary ring is actively set on main shaft, after pressure is more than elastic force of the dynamic clamping head and quiet clamping head to stationary ring, pressure
Pressure caused by contracting air promotes direction of the stationary ring away from rotating ring on main shaft to move, so that stationary ring and rotating ring are from before
Composition surface separate, when dynamic clamping head and quiet clamping head is mutually balanced to the pressure of stationary ring with compressed air to elastic force caused by stationary ring, compression is empty
Gas forms stable air film between the upper surface of stationary ring and the lower surface of rotating ring, starts main shaft rotation, and main shaft drives rotating ring rotation
Turn to transmit moment of torsion, stationary ring separates with rotating ring to produce frictional resistance with the rotation of rotating ring, and the presence of air film also substantially reduces
Mechanical high frequency trembles, while is arranged between unnecessary gas driven torus lower surface and the upper surface of stationary ring to the direction away from main shaft
Go out, take away caused heat in main shaft high-speed rotation, reach the effect of sealing and radiating, extend the use of mechanical structure
Life-span.
It should be noted that when the compressed air pressure downward to stationary ring and the dynamic clamping head and quiet clamping head support force upward to stationary ring
Reach balance, i.e., when both wait big reverse, the thickness of air film is about 0.3mm between rotating ring lower surface and stationary ring upper surface, i.e., dynamic
The distance between ring lower surface and stationary ring upper surface are about 0.3mm.
Sealing medium in the mechanical seal structure that the utility model embodiment is provided is compressed air, can really be done
To material no pollution, being particularly suitable for use in does not allow the material of pollution.Development for mechanical seal industry, and to some green woods
The research and development of material, great impetus will be played.
Preferably, dynamic clamping head and quiet clamping head is spring.The first annular groove coaxial with main shaft is offered in stationary seat upper surface,
First annular groove forms two annular boss.Ring-shaped step is offered in the lower surface of stationary ring inner surface, is used for and stationary seat
The upper annular boss close to main shaft matches.The inner surface of stationary ring is divided into upper inner surface and lower inner surface by the ring-shaped step, on
The inner surface of inner surface and stationary seat is consistent, and lower inner surface contacts with inwall of the first annular groove close to main shaft side,
And inwall of the first annular groove away from main shaft side contacts with stationary ring outer peripheral face.
Second annular groove coaxial with main shaft is offered in the lower surface of stationary ring, the second annular groove is used to accommodate bullet
The bottom portion of groove of the second annular groove is fixed in spring, one end of spring, and the other end stretches out first annular groove and is fixed on first
The bottom portion of groove of annular groove, stationary ring is connected with stationary seat.
It should be noted that be also equipped with sealing ring between stationary ring and stationary seat, realize stationary ring and stationary seat it
Between static seal.
Specifically, by positioning pin connection between rotating ring and main shaft, and the upper surface of rotating ring is provided with pressing plate 7, pressing plate
It is fixed on main shaft, for carrying out axial limiting to rotating ring.
Pressing plate is preferably nut, is connected through a screw thread with main shaft.Main shaft is stepped, for the main shaft section coordinated with nut
On be opened in the external screw thread to match with the internal thread of nut, nut is fixed on main shaft by being threaded into.Rotating ring is installed
The diameter of main shaft section is more than the main shaft section diameter with installing nut, and nut just can enter advance to axial displacement of the rotating ring on main shaft
The restriction of one step.
Specifically, gas passage has air inlet 8-1 and gas outlet 8-2, and air inlet is arranged on the outer peripheral face of stationary ring,
Gas outlet is arranged on the upper surface that stationary ring is used to contact with rotating ring.
Gas passage includes being arranged on the toroidal cavity coaxial with main shaft inside stationary ring, the bottom of toroidal cavity and air inlet
Mouth connection, the top of toroidal cavity connects with gas outlet.The presence of annular housing is equivalent to resistance wall, it is ensured that gas is in cavity
In as long as possible stop, keep air pressure uniform and stable.
In addition, air inlet is two, and it is symmetricly set on the outer peripheral face of stationary ring；Gas outlet is several, with stationary ring
Annular array is in the upper surface of stationary ring centered on central shaft.
The compressed air entered from two air inlets quickly fills with toroidal cavity, then by being arranged on the outlet of stationary ring upper surface
Mouth discharge.Rapidly and uniformly compressed air can be discharged on stationary ring in the stationary ring upper surface equally distributed gas outlet of annular
Between end face and rotating ring lower surface, heat caused by the main shaft of rotation at a high speed can be not only taken away to greatest extent, moreover it is possible to effectively
Offset main shaft trembling etc. to mechanical seal and the influence of machine of being formed of rotation at a high speed in ground.
It should be noted that the mechanical seal structure that the present embodiment provides also includes housing 9, housing has cylinder type hollow
Cavity, pressing plate, rotating ring, stationary ring and stationary seat are all disposed within the hollow cavity of housing, and main shaft is through and out housing.In shell
On body periphery, the position of corresponding air inlet is provided with air inlet pipe 9-1, for the air inlet for making compressed gas enter on stationary ring；
Escape pipe 9-2 is additionally provided with housing periphery, the discharge for compressed gas.
The control assembly for controlling main axis is provided with stationary seat, when dynamic clamping head and quiet clamping head is to the elastic force and pressure of stationary ring
During pressure balance of the contracting air to stationary ring, control assembly control main axis.
When stationary ring because rotating ring is left in the pressure effect of compressed air, until pressure and spring pair of the compressed air to stationary ring
The elastic force of stationary ring keeps balance, when compressed air forms the air film of sealing between rotating ring lower surface and stationary ring upper surface, starts
Main axis, main shaft drive rotating ring to rotate to transmit moment of torsion.In order to realize the startup that can realize main shaft automatically, on stationary seat
The control assembly for controlling main shaft to start or stop is provided with, control assembly is located at the downward maximum displacement of stationary ring.
Mode one
Specifically, control assembly includes being used for the sensor for detecting stationary ring and the control for controlling main shaft start and stop
Device processed, sensor are connected with controller signals.
Under static state, be passed through compressed air into gas passage, stationary ring due to gas pressure act on axially to
Lower motion, until gas pressure is equal with the elastic force of spring, the state of stationary ring keeps stable, and now stationary ring is in what is moved down
At maximum displacement, sensor detects stationary ring and signal is passed into controller, and controller starts main shaft rotation, and main shaft drives dynamic
Ring rotates.Stable gas film sealing between the lower surface of rotating ring and the upper surface of stationary ring now be present, main shaft can be realized at a high speed
Rotation, meets job requirement.Stop after being passed through compressed air into gas passage, with rotating ring lower surface and stationary ring upper surface it
Between gas gradually discharge, the release of energy that spring is compressed, promote stationary ring to move upwards, stationary ring is upward under the action of the spring
Motion, sensor can't detect stationary ring, and controller braking stops the rotation of main shaft.When between rotating ring lower surface and stationary ring upper surface
Air discharge it is complete, the upper surface of stationary ring contacts with the lower surface of rotating ring, realizes sealing.
Mode two
Specifically, control assembly includes being arranged at the touch part of stationary ring lower surface and for controlling main shaft start and stop
Controller, touch part can touch the shift knob of controller.
Under static state, be passed through compressed air into gas passage, stationary ring due to gas pressure act on axially to
Lower motion, until gas pressure is equal with the elastic force of spring, the state of stationary ring keeps stable, and now stationary ring is in what is moved down
At maximum displacement, touch part touches controller switches button, and controller starts main shaft rotation, and main shaft drives rotating ring rotation.Now
Stable gas film sealing between the lower surface of rotating ring and the upper surface of stationary ring be present, main shaft, which can be realized, to be rotated at a high speed, meets work
It is required.Stop after being passed through compressed air into gas passage, with the gas between rotating ring lower surface and stationary ring upper surface by
Gradually discharge, the energy release that spring is compressed, promote stationary ring to move upwards, touch part leaves controller switches button, controller
Braking stops the rotation of main shaft.When the air discharge between rotating ring lower surface and stationary ring upper surface is complete, the upper surface of stationary ring with
The lower surface contact of rotating ring, realizes sealing.
In addition, the stationary ring material in the mechanical seal structure that the present embodiment provides is graphite, when such as prominent under fortuitous event
When so stopping the supple of gas or steam, self-lubricating can be formed after graphite abrasion, effectively machine can be protected to seal, be unlikely to fail.
Embodiment two
The present embodiment provides a kind of circulating pump, including circulating pump body and air compression plant, is set on circulating pump body
The mechanical seal structure provided just like embodiment one.Air compression plant connects with gas passage, for defeated into gas passage
Send compressed gas.
Air compression plant therein includes air compressor and air accumulator, gas input port and the air pressure of air accumulator
The delivery outlet connection of contracting machine, the gas delivery port of air accumulator are defeated by gas with the gas passage in the present embodiment by air inlet pipe
Enter pipeline communication.Also, magnetic valve and flowmeter are provided with gas feeding duct, for controlling the flow and stream of gas
Speed.
Storage is imported into stationary ring by air inlet pipe with the compressed air in air accumulator and is transported to out by gas passage
Gas port.It is used for the upper surface that contact with rotating ring because gas outlet is arranged on stationary ring, compressed air sprays from gas outlet, and to moving
The lower surface of ring and the upper surface of stationary ring produce equal pressure.Because stationary ring is connected by spring with stationary seat, when pressure is big
In upward elastic force of the spring to stationary ring, the pressure of air promotes stationary ring to be moved downward on main shaft, make stationary ring and rotating ring from it
Preceding composition surface separates, and compressed air forms air film between the lower surface of rotating ring and the upper surface of stationary ring and reaches air seal.
When the pressure of air and the elastic force of spring are kept in balance, the air film between rotating ring lower surface and stationary ring upper surface keeps stable.Together
When, compressed gas caused by air compression plant is constantly transported to rotating ring lower surface and stationary ring upper end from gas delivery channels in a steady stream
Between face, discharge, take away at a high speed to the direction away from main shaft between unnecessary gas driven torus lower surface and the upper surface of stationary ring
Heat caused by the main shaft of rotation, reach the i.e. effect of sealing and radiating.
Circulating pump includes pump case and pump shaft, and pump case includes machine envelope seat, inlays mechanical seal structure in machine envelope seat, wherein, pump
Axle is the main shaft in mechanical seal structure.
Concrete structure on mechanical seal structure has hereinbefore been done to be described in detail, and here is omitted.This implementation
The circulating pump that example provides is more stable in use due to the presence of above-mentioned mechanical seal structure, can reach longer service life.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of mechanical seal structure, it is characterised in that including main shaft (2), rotating ring (4), stationary ring (3) and stationary seat (6)；
The rotating ring (4) is coaxially installed on the main shaft (2) and can rotated with the main shaft (2)；The stationary ring (3) and institute
State stationary seat (6) to be coaxially set on the main shaft (2), relatively described main shaft (2) remains stationary of the stationary seat (6)；It is described
Dynamic clamping head and quiet clamping head is provided between stationary ring (3) and the stationary seat (6), the dynamic clamping head and quiet clamping head is used to make the stationary ring (3)
The lower surface of upper surface and the rotating ring (4) contacts with each other；Gas passage (8) is provided with the stationary ring (3), for that will compress
Air is imported between the upper surface of the stationary ring (3) and the lower surface of the rotating ring (4).
2. mechanical seal structure according to claim 1, it is characterised in that the gas passage (8) has air inlet
(8-1) and gas outlet (8-2), the air inlet (8-1) are arranged on the outer peripheral face of the stationary ring (3), the gas outlet
(8-2) is arranged on the upper surface that the stationary ring (3) is used to contact with the rotating ring (4).
3. mechanical seal structure according to claim 2, it is characterised in that the gas passage (8) includes being arranged on institute
The coaxial annular cavity in stationary ring (3) is stated, the bottom of the toroidal cavity connects with the air inlet (8-1), and the annular is empty
The top of chamber connects with the gas outlet (8-2).
4. mechanical seal structure according to claim 3, it is characterised in that the air inlet (8-1) is two, and right
Title is arranged on the outer peripheral face of the stationary ring (3)；The gas outlet (8-2) is several, with the central shaft of the stationary ring (3)
Centered on annular be distributed on the upper surfaces of the stationary ring (3).
5. mechanical seal structure according to claim 1, it is characterised in that be provided with the stationary seat (6) for controlling
The control assembly of the main shaft (2) rotation is made, when the dynamic clamping head and quiet clamping head to the elastic force and compressed air of the stationary ring (3) to institute
When stating the pressure balance of stationary ring (3), the control assembly controls the main axis.
6. mechanical seal structure according to claim 5, it is characterised in that the control assembly includes described for detecting
The displacement transducer of the displacement of stationary ring (3) vertically and the controller for controlling the main shaft (2) start and stop, it is described
Displacement transducer is connected with the controller signals.
7. mechanical seal structure according to claim 6, it is characterised in that between the rotating ring (4) and the main shaft (2)
By positioning pin connection, and pressing plate (7) is provided with the upper surface of the rotating ring (4), the pressing plate (7) is fixed on the main shaft
(2) on, for carrying out axial limiting to the rotating ring (4).
8. according to the mechanical seal structure any one of claim 1-7, it is characterised in that the material of the stationary ring (3)
For graphite.
9. according to the mechanical seal structure any one of claim 1-7, it is characterised in that the dynamic clamping head and quiet clamping head is
Spring (5).
10. a kind of circulating pump, it is characterised in that including circulating pump body and air compression plant, set on the circulating pump body
Mechanical seal structure as claimed in any one of claims 1-9 wherein is equipped with, the air compression plant connects with the gas passage
It is logical, for conveying compressed gas into gas passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506141.XU CN206694314U (en) | 2017-05-08 | 2017-05-08 | Mechanical seal structure and circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506141.XU CN206694314U (en) | 2017-05-08 | 2017-05-08 | Mechanical seal structure and circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694314U true CN206694314U (en) | 2017-12-01 |
Family
ID=60448298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720506141.XU Withdrawn - After Issue CN206694314U (en) | 2017-05-08 | 2017-05-08 | Mechanical seal structure and circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061346A (en) * | 2017-05-08 | 2017-08-18 | 东莞鸿凯工程设备有限公司 | Mechanical seal structure and circulating pump |
| CN110486458A (en) * | 2019-06-05 | 2019-11-22 | 西南交通大学 | A kind of oil gas coupled sealer for transmission shaft |
-
2017
- 2017-05-08 CN CN201720506141.XU patent/CN206694314U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061346A (en) * | 2017-05-08 | 2017-08-18 | 东莞鸿凯工程设备有限公司 | Mechanical seal structure and circulating pump |
| CN107061346B (en) * | 2017-05-08 | 2024-03-08 | 东莞鸿凯工程设备有限公司 | Mechanical seal structure and circulating pump |
| CN110486458A (en) * | 2019-06-05 | 2019-11-22 | 西南交通大学 | A kind of oil gas coupled sealer for transmission shaft |
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Denomination of utility model: Mechanical seal structure and circulating pump Granted publication date: 20171201 Pledgee: Bank of China Co.,Ltd. Dongguan Branch Pledgor: DONGGUAN HONGKAI ENGINEERING EQUIPMENT Co.,Ltd. Registration number: Y2024980002983 |
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Granted publication date: 20171201 Effective date of abandoning: 20240308 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171201 Effective date of abandoning: 20240308 |