CN205489915U - A shaft seal system that is used for motor of working under high temperature or high voltage ring border - Google Patents
A shaft seal system that is used for motor of working under high temperature or high voltage ring border Download PDFInfo
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- CN205489915U CN205489915U CN201620020536.4U CN201620020536U CN205489915U CN 205489915 U CN205489915 U CN 205489915U CN 201620020536 U CN201620020536 U CN 201620020536U CN 205489915 U CN205489915 U CN 205489915U
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Abstract
The utility model discloses a shaft seal system that is used for motor of working under high temperature or high voltage ring border belongs to electrical equipment technical field, include first joint of being connected with motor housing and the second joint of being connected with the main shaft, first joint and second connect through threaded connection, its characterized in that: the cover has the piston rod on the main shaft, is connected with the piston on the piston rod, and first joint one end is connected with the piston end cover, and the other end is connected with first sealing member, and the second connects to be connected with the main shaft through the second sealing member, and first joint, second connect and the main shaft encloses into the adapter cavity, and motor housing, main shaft and piston end cover enclose into the inner chamber, and it has a pressure balance hole to open on the first joint, and it has the 2nd pressure balance hole to open on the piston end cover. The utility model discloses a pressure differential between the piston balanced seal makes and to seal up in the work down of zero -pressure difference ring border, has improved the sealing reliability, can ensured motor stablizes under high temperature, high voltage ring border and works.
Description
Technical field
This utility model relates to motor device technical field, particularly relates to one and works under high temperature or environment under high pressure
The spindle seal system of motor.
Background technology
High temperature or environment under high pressure refer to simple high temperature or environment under high pressure, or have the environment of high temperature and high pressure simultaneously,
Working environment such as the motor such as downhole electrical motor, deep-sea motor.The motor outside to be born worked under high temperature or environment under high pressure
The effect of high temperature and high pressure, the impact of motor be can not be ignored by external agency equally.Under usual conditions, Jie of such outside motor
Matter is multi-phase mixed liquid, including solid phase, liquid and gas.And motor internal medium is usually thin oil medium, therefore, how to prevent
At spin-ended rotation member and stationary parts, external agency enters motor internal and to prevent interior media from leaking into outside motor be this
Under environment, work drive motor needs primarily to solve the technical problem that.
At present, under high temperature, environment under high pressure the sealing of work drive motor owing to pressure in transitional cavity cannot be realized between sealing
Balance, and the mode of single sealing unit can only be used to realize, single sealing makes the maintenance period of motor be greatly shortened.At height
Under the effect of temperature, high pressure and outside multi-phase mixed liquid, sealing is quickly damaged, and causes motor internal thin oil leak, while outside
Portion's multi-phase fluid enters motor internal makes motor normally to work.
Publication No. CN 2817188, it is close that publication date is that the Chinese patent literature of on 09 13rd, 2006 discloses a kind of band
The integrated oil-submersible motor of seal apparatus, including by motor-shaft extending, motor head, stator, rotor, thrust bearing, alignment bearing, insert
The motor body that seat, cable, lead-in wire lid and bearing block are constituted, it is characterised in that: described motor-shaft extending end is equipped with sealing
Head, the inlet opening of promising oil-immersed pump feed flow on seal head, motor-shaft extending is direct and oil-immersed pump by the connection screw on seal head
Docking, seal head is formed the annular seal space of protection motor by least one pair of mechanical seal；The bearing block bottom of motor tail end and base
Between constitute inner chamber and the outside space being interconnected, be wherein equipped with the cryptomere adjusting means of regulation external and internal pressure, in this device
At least should there is one in order to the regulation cavity regulating external and internal pressure size.
The integrated oil-submersible motor of band sealing device disclosed in this patent documentation, assembles seal head in the upper end of motor,
Directly being docked with oil-immersed pump by seal head, on seal head, make-up machinery seals to meet the seal request of submersible electric machine with oil, this
Kind single mechanical seal, under the effect of high temperature, high pressure and outside multi-phase mixed liquid, seals and easily damages, cause motor
Internal thin oil leakage, outside multi-phase fluid enters motor internal makes motor impaired, causes the motor can not the work of normal table
Make.
Utility model content
This utility model is in order to overcome the defect of above-mentioned prior art, it is provided that a kind of being used under high temperature or environment under high pressure works
The spindle seal system of motor, this utility model, by the pressure differential between piston balanced seal, makes to be sealed in zero pressure difference environment
Lower work, improves sealing reliability, prevents the leakage of motor internal thin oil and outside multi-phase fluid from entering motor internal, and then ensures
Motor is steady operation under high temperature, environment under high pressure.
This utility model is achieved through the following technical solutions:
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including be connected with motor housing
One joint and the second joint being connected with main shaft, the first joint and the second joint are threaded connection, it is characterised in that: described master
Being cased with piston rod on axle, piston rod connects piston, and first joint one end connects piston end cap, and the other end connects first
Sealing member, described second joint is connected with main shaft by the second sealing member, and the first joint, the second joint and main shaft surround transition
Chamber, motor housing, main shaft and piston end cap surround inner chamber, described first joint have the first pressure compensation opening, piston end cap
On have the second pressure compensation opening.
Described first sealing member is end surface mechanical sealing, and including stationary ring, spring, rotating ring and snap ring, stationary ring is fixed on first
On joint, snap ring is connected on main shaft, and stationary ring and rotating ring are connected by spring；Second sealing member is radial seal, including radially
Bearing and radial direction seal ring, journal bearing is enclosed within main shaft, and the second joint and main shaft are connected by radial direction seal ring.
Described first sealing member is radial seal, and including journal bearing and radial direction seal ring, journal bearing is enclosed within main shaft,
First joint and main shaft are connected by radial direction seal ring；Second sealing member is end surface mechanical sealing, including stationary ring, spring, rotating ring
And snap ring, stationary ring is fixed on the second joint, and snap ring is connected on main shaft, and stationary ring and rotating ring are connected by spring.
Described first sealing member and the second sealing member are radial seal, and the first sealing member includes that journal bearing and radial direction are the closeest
Seal, journal bearing is enclosed within main shaft, and the first joint and main shaft are connected by radial direction seal ring；Second sealing member includes radial axle
Holding and radial direction seal ring, journal bearing is enclosed within main shaft, and the second joint and main shaft are connected by radial direction seal ring.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring, spring, moves
Ring and snap ring, stationary ring is fixed on the first joint, and snap ring is connected on main shaft, and stationary ring and rotating ring are connected by spring；Second is close
Sealing includes stationary ring, spring, rotating ring and snap ring, and stationary ring is fixed on the second joint, and snap ring is connected on main shaft, stationary ring and rotating ring
Connected by spring.
Being cased with journal bearing on described main shaft, journal bearing is between the second joint and main shaft.
Described first pressure compensation opening and the second pressure compensation opening correspondence are arranged.
Described first pressure compensation opening and the second pressure compensation opening are staggeredly arranged.
Being cased with outer side seal circle on described piston, upper cover of piston rod has inner seal circle, outer side seal circle to be positioned at first to connect
Between head and piston, inner seal circle is between piston and piston rod.
Operation principle of the present utility model is as follows:
Motor initial operating stage is outer side seal active phase: be thin oil in inner chamber and adapter cavity, and interior intracavity is dilute
Oil pressure is the least with external agency pressure balance or pressure reduction under the effect of protector, complete by piston between inner chamber and adapter cavity
Hermetically sealed isolation.Radial seal both can prevent external agency from entering adapter cavity, leaks prevented also from the thin oil in adapter cavity simultaneously
To exocoel.In this stage, end surface mechanical sealing runs completely in good thin oil environment, and end surface mechanical sealing is entirely without quilt
The risk damaged, the pressure of the thin oil in adapter cavity can change along with the change of outside motor pressure and temperature, pass through
The movement of piston, it is possible to make adapter cavity keep balance with the pressure of inner chamber, so that adapter cavity pressure realizes with ambient pressure
Balance, and then it is excessive and make seal failure to be prevented from sealing pressure at both sides difference.
The motor operation later stage is inner seal active phase: along with the continuous operation of motor, radial seal will be worn also
Losing efficacy, adapter cavity connects with the medium of outer intracavity, and the medium of outer intracavity will enter in adapter cavity, Jie in adapter cavity simultaneously
Matter also can be to External leakage, and radial seal was lost efficacy the initial stage, by the mixture based on thin oil and water in adapter cavity, and now end face machine
Tool seals and piston will play the effect of isolation inner chamber and adapter cavity, and the medium of exocoel and adapter cavity still cannot be introduced into inner chamber,
And then can the stable operation of effective guarantee motor safety.
The beneficial effects of the utility model are mainly manifested in following aspect:
One, this utility model, main shaft is cased with piston rod, and piston rod connects piston, and first joint one end connects to be had
Piston end cap, the other end connects the first sealing member, and the second joint is connected with main shaft by the second sealing member, the first joint, the
Two joints and main shaft surround adapter cavity, and motor housing, main shaft and piston end cap surround inner chamber, and the first joint has the first pressure
Balance pipe, piston end cap has the second pressure compensation opening, by the side using the first sealing member and the second sealing member to combine
Formula, for the single sealing of prior art, it is possible to effectively extend the maintenance period of motor；By the pressure between piston balanced seal
Power is poor, makes to be sealed under zero pressure difference environment and works, and improves sealing reliability, effectively prevents motor internal thin oil leakage and outside
Multi-phase fluid enters motor internal, and then can ensure motor steady operation under high temperature, environment under high pressure.
Two, this utility model, the first sealing member is end surface mechanical sealing, including stationary ring, spring, rotating ring and snap ring, stationary ring
Being fixed on the first joint, snap ring is connected on main shaft, and stationary ring and rotating ring are connected by spring；Second sealing member is the closeest
Envelope, including journal bearing and radial direction seal ring, journal bearing is enclosed within main shaft, and the second joint and main shaft are by radial direction seal ring even
Connecing, outer side seal realizes sealing by the rubbing surface between radial seal and main shaft, and inner seal passes through end surface mechanical sealing, profit
Realize sealing with the rubbing surface between its stationary ring and rotating ring, along with the continuous operation of motor, even if the radial seal in outside was lost efficacy,
The end surface mechanical sealing of inner side and piston coordinate the effect that just can play isolation inner chamber with adapter cavity, exocoel and Jie of adapter cavity
Matter still cannot be introduced into inner chamber such that it is able to ensures that motor is properly functioning.
Three, this utility model, the first sealing member is radial seal, including journal bearing and radial direction seal ring, journal bearing
Being enclosed within main shaft, the first joint and main shaft are connected by radial direction seal ring；Second sealing member is end surface mechanical sealing, including quiet
Ring, spring, rotating ring and snap ring, stationary ring is fixed on the second joint, and snap ring is connected on main shaft, and stationary ring and rotating ring are by spring even
Connecing, outer side seal passes through end surface mechanical sealing, utilizes the rubbing surface between its stationary ring and rotating ring to realize sealing, and inner seal passes through
Rubbing surface between radial seal and main shaft realizes sealing, along with the long-play of motor, even if the mechanical end face in outside is close
Envelope lost efficacy, and the radial seal of inner side and piston coordinate also can isolate inner chamber and adapter cavity, prevents the medium of exocoel and adapter cavity from entering
Enter inner chamber, ensure that motor stabilizing runs.
Four, this utility model, the first sealing member and the second sealing member are radial seal, and the first sealing member includes radial axle
Holding and radial direction seal ring, journal bearing is enclosed within main shaft, and the first joint and main shaft are connected by radial direction seal ring；Second sealing member
Including journal bearing and radial direction seal ring, journal bearing is enclosed within main shaft, and the second joint and main shaft are connected by radial direction seal ring,
Outer side seal and inner seal all realize sealing by the rubbing surface between radial seal and main shaft, it is achieved dual-seal, coordinate
The movement of piston, it is possible to the pressure reduction between balance external side seal and inner seal, and then make motor stable.
Five, this utility model, the first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes quiet
Ring, spring, rotating ring and snap ring, stationary ring is fixed on the first joint, and snap ring is connected on main shaft, and stationary ring and rotating ring are by spring even
Connect；Second sealing member includes stationary ring, spring, rotating ring and snap ring, and stationary ring is fixed on the second joint, and snap ring is connected on main shaft,
Stationary ring and rotating ring are connected by spring, and outer side seal and inner seal, all by end surface mechanical sealing, utilize its stationary ring and rotating ring
Between rubbing surface realize seal, by the pressure reduction between piston shifting balance outer side seal and inner seal, it is possible to make motor
Stable operation.
Six, this utility model, main shaft is cased with journal bearing, and journal bearing is between the second joint and main shaft, it is possible to
Improve outer side seal effect further, effectively prevent the medium of outer intracavity from entering adapter cavity.
Seven, this utility model, the first pressure compensation opening and the second pressure compensation opening correspondence are arranged, by this layout side
At formula, the first pressure compensation opening and the second pressure compensation opening in the same horizontal line, it is possible to make piston quickly move, make inner chamber
With the pressure between adapter cavity reaches balance, it is simple to protection seals, ensure sealing effectiveness.
Eight, this utility model, the first pressure compensation opening and the second pressure compensation opening are staggeredly arranged, by this layout side
Formula so that there is difference in height between the first pressure compensation opening and the second pressure compensation opening, it is possible to the movement of fine setting piston, makes inner chamber
With the pressure between adapter cavity tends to balance for a long time, thus ensure the using effect of sealing.
Nine, this utility model, piston is cased with outer side seal circle, and upper cover of piston rod has inner seal circle, outer side seal circle
Between the first joint and piston, inner seal circle is between piston and piston rod, by arranging inner seal circle with outer
Side seal circle, has good sealing effectiveness, it is possible to prevent piston from producing gap with the first joint and piston rod respectively, it is ensured that to live
Plug stability in use, makes piston move more smooth and easy, it is simple to the pressure balance between regulation inner chamber and adapter cavity.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, this utility model is described in further detail, its
In:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model embodiment 2；
Fig. 3 is the structural representation of this utility model embodiment 3；
Fig. 4 is the structural representation of this utility model embodiment 4；
Fig. 5 is the structural representation of this utility model embodiment 5；
Fig. 6 is the structural representation of this utility model embodiment 7；
Fig. 7 is the structural representation of this utility model embodiment 8；
Fig. 8 is the structural representation of this utility model embodiment 9；
Labelling in figure: 1, motor housing, the 2, first joint, 3, main shaft, the 4, second joint, 5, piston rod, 6, piston, 7, live
Plug end cap, 8, adapter cavity, 9, inner chamber, the 10, first pressure compensation opening, the 11, second pressure compensation opening, 12, stationary ring, 13, spring,
14, rotating ring, 15, snap ring, 16, journal bearing, 17, radial direction seal ring, 18, outer side seal circle, 19, inner seal circle.
Detailed description of the invention
Embodiment 1
See Fig. 1, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
The present embodiment is most basic embodiment, and main shaft is cased with piston rod, and piston rod connects piston, and first connects
First end connects piston end cap, and the other end connects the first sealing member, and the second joint is connected with main shaft by the second sealing member,
First joint, the second joint and main shaft surround adapter cavity, and motor housing, main shaft and piston end cap surround inner chamber, on the first joint
Have the first pressure compensation opening, piston end cap has the second pressure compensation opening, by using the first sealing member and second to seal
The mode that part combines, for the single sealing of prior art, it is possible to effectively extend the maintenance period of motor；Balanced by piston
Pressure differential between sealing, makes to be sealed under zero pressure difference environment and works, and improves sealing reliability, effectively prevents motor internal dilute
Oil leakage and outside multi-phase fluid enter motor internal, and then can ensure motor steady operation under high temperature, environment under high pressure.
Embodiment 2
See Fig. 2, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member is end surface mechanical sealing, including stationary ring 12, spring 13, rotating ring 14 and snap ring 15, stationary ring 12
Being fixed on the first joint 2, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13；Second sealing member
For radial seal, including journal bearing 16 and radial direction seal ring 17, journal bearing 16 is enclosed within main shaft 3, the second joint 4 and main shaft
3 are connected by radial direction seal ring 17.
The present embodiment is a better embodiment, and the first sealing member is end surface mechanical sealing, including stationary ring, spring, rotating ring
And snap ring, stationary ring is fixed on the first joint, and snap ring is connected on main shaft, and stationary ring and rotating ring are connected by spring；Second seals
Part is radial seal, and including journal bearing and radial direction seal ring, journal bearing is enclosed within main shaft, and the second joint and main shaft pass through footpath
Connecting to sealing ring, outer side seal realizes sealing by the rubbing surface between radial seal and main shaft, and inner seal passes through end face
Mechanical seal, utilizes the rubbing surface between its stationary ring and rotating ring to realize sealing, along with the continuous operation of motor, even if the footpath in outside
The effect that just can play isolation inner chamber with adapter cavity, exocoel is coordinated to seal failure, the end surface mechanical sealing of inner side and piston
Still inner chamber is cannot be introduced into such that it is able to ensure that motor is properly functioning with the medium of adapter cavity.
Embodiment 3
See Fig. 3, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member is radial seal, and including journal bearing 16 and radial direction seal ring 17, journal bearing 16 is enclosed within
On main shaft 3, the first joint 2 and main shaft 3 are connected by radial direction seal ring 17；Second sealing member is end surface mechanical sealing, including quiet
Ring 12, spring 13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the second joint 4, and snap ring 15 is connected on main shaft 3, stationary ring 12
Connected by spring 13 with rotating ring 14.
The present embodiment is another better embodiment, and the first sealing member is radial seal, the closeest including journal bearing and radial direction
Seal, journal bearing is enclosed within main shaft, and the first joint and main shaft are connected by radial direction seal ring；Second sealing member is mechanical end face
Sealing, including stationary ring, spring, rotating ring and snap ring, stationary ring is fixed on the second joint, and snap ring is connected on main shaft, and stationary ring is with dynamic
Ring is connected by spring, and outer side seal passes through end surface mechanical sealing, utilizes the rubbing surface between its stationary ring and rotating ring to realize sealing,
Inner seal realizes sealing by the rubbing surface between radial seal and main shaft, along with the long-play of motor, even if outside
End surface mechanical sealing lost efficacy, the radial seal of inner side and piston coordinate also can isolate inner chamber and adapter cavity, prevents exocoel and mistake
The medium crossing chamber enters inner chamber, ensures that motor stabilizing runs.
Embodiment 4
See Fig. 4, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are radial seal, and the first sealing member includes journal bearing 16 and radial direction
Sealing ring 17, journal bearing 16 is enclosed within main shaft 3, and the first joint 2 and main shaft 3 are connected by radial direction seal ring 17；Second seals
Part includes journal bearing 16 and radial direction seal ring 17, and journal bearing 16 is enclosed within main shaft 3, and the second joint 4 and main shaft 3 are by radially
Sealing ring 17 connects.
The present embodiment is another better embodiment, and the first sealing member and the second sealing member are radial seal, and first is close
Sealing includes journal bearing and radial direction seal ring, and journal bearing is enclosed within main shaft, and the first joint and main shaft pass through radial direction seal ring
Connect；Second sealing member includes journal bearing and radial direction seal ring, and journal bearing is enclosed within main shaft, and the second joint and main shaft pass through
Radial direction seal ring connects, and outer side seal and inner seal all realize sealing by the rubbing surface between radial seal and main shaft, real
Existing dual-seal, coordinates the movement of piston, it is possible to the pressure reduction between balance external side seal and inner seal, and then makes motor run
Stable.
Embodiment 5
See Fig. 5, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring 12, spring
13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the first joint 2, and snap ring 15 is connected on main shaft 3, stationary ring 12 and rotating ring 14
Connected by spring 13；Second sealing member includes stationary ring 12, spring 13, rotating ring 14 and snap ring 15, and stationary ring 12 is fixed on second and connects
On 4, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13.
The present embodiment is another better embodiment, and the first sealing member and the second sealing member are end surface mechanical sealing, the
One sealing member includes stationary ring, spring, rotating ring and snap ring, and stationary ring is fixed on the first joint, and snap ring is connected on main shaft, stationary ring and
Rotating ring is connected by spring；Second sealing member includes stationary ring, spring, rotating ring and snap ring, and stationary ring is fixed on the second joint, snap ring
Being connected on main shaft, stationary ring and rotating ring are connected by spring, and outer side seal and inner seal, all by end surface mechanical sealing, utilize
Rubbing surface between its stationary ring and rotating ring realizes sealing, by the pressure between piston shifting balance outer side seal and inner seal
Difference, it is possible to make the operation of motor stabilizing.
Embodiment 6
See Fig. 6, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring 12, spring
13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the first joint 2, and snap ring 15 is connected on main shaft 3, stationary ring 12 and rotating ring 14
Connected by spring 13；Second sealing member includes stationary ring 12, spring 13, rotating ring 14 and snap ring 15, and stationary ring 12 is fixed on second and connects
On 4, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13.
Being cased with journal bearing 16 on described main shaft 3, journal bearing 16 is between the second joint 4 and main shaft 3.
The present embodiment is another better embodiment, and main shaft is cased with journal bearing, journal bearing be positioned at the second joint and
Between main shaft, it is possible to improve outer side seal effect further, effectively prevent the medium of outer intracavity from entering adapter cavity.
Embodiment 7
See Fig. 6, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring 12, spring
13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the first joint 2, and snap ring 15 is connected on main shaft 3, stationary ring 12 and rotating ring 14
Connected by spring 13；Second sealing member includes stationary ring 12, spring 13, rotating ring 14 and snap ring 15, and stationary ring 12 is fixed on second and connects
On 4, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13.
Being cased with journal bearing 16 on described main shaft 3, journal bearing 16 is between the second joint 4 and main shaft 3.
Described first pressure compensation opening 10 and the corresponding layout of the second pressure compensation opening 11.
The present embodiment is another better embodiment, and the first pressure compensation opening and the second pressure compensation opening correspondence are arranged, logical
Cross at this arrangement, the first pressure compensation opening and the second pressure compensation opening in the same horizontal line, it is possible to make piston quick
Movement, make the pressure between inner chamber and adapter cavity reach balance, it is simple to protection seal, ensure sealing effectiveness.
Embodiment 8
See Fig. 7, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring 12, spring
13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the first joint 2, and snap ring 15 is connected on main shaft 3, stationary ring 12 and rotating ring 14
Connected by spring 13；Second sealing member includes stationary ring 12, spring 13, rotating ring 14 and snap ring 15, and stationary ring 12 is fixed on second and connects
On 4, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13.
Being cased with journal bearing 16 on described main shaft 3, journal bearing 16 is between the second joint 4 and main shaft 3.
Described first pressure compensation opening 10 and the second pressure compensation opening 11 are staggeredly arranged.
The present embodiment is another better embodiment, and the first pressure compensation opening and the second pressure compensation opening are staggeredly arranged, logical
Cross this arrangement so that between the first pressure compensation opening and the second pressure compensation opening, there is difference in height, it is possible to fine setting piston
Movement, make the pressure between inner chamber and adapter cavity tend to balance for a long time, thus ensure the using effect of sealing.
Embodiment 9
See Fig. 8, a kind of spindle seal system of work drive motor under high temperature or environment under high pressure, including with motor housing
1 the first joint 2 connected and the second joint 4 of being connected with main shaft 3, the first joint 2 and the second joint 4 be threaded connection, institute
Stating and be cased with piston rod 5 on main shaft 3, piston rod 5 connects piston 6, and first joint 2 one end connects piston end cap 7, the other end
Connecting and have the first sealing member, described second joint 4 is connected with main shaft 3 by the second sealing member, first joint the 2, second joint 4 and
Main shaft 3 surrounds adapter cavity 8, and motor housing 1, main shaft 3 and piston end cap 7 surround inner chamber 9, and described first joint 2 has first
Pressure compensation opening 10, piston end cap 7 has the second pressure compensation opening 11.
Described first sealing member and the second sealing member are end surface mechanical sealing, and the first sealing member includes stationary ring 12, spring
13, rotating ring 14 and snap ring 15, stationary ring 12 is fixed on the first joint 2, and snap ring 15 is connected on main shaft 3, stationary ring 12 and rotating ring 14
Connected by spring 13；Second sealing member includes stationary ring 12, spring 13, rotating ring 14 and snap ring 15, and stationary ring 12 is fixed on second and connects
On 4, snap ring 15 is connected on main shaft 3, and stationary ring 12 and rotating ring 14 are connected by spring 13.
Being cased with journal bearing 16 on described main shaft 3, journal bearing 16 is between the second joint 4 and main shaft 3.
Described first pressure compensation opening 10 and the second pressure compensation opening 11 are staggeredly arranged.
It is cased with outer side seal circle 18 on described piston 6, piston rod 5 is cased with inner seal circle 19,18, outer side seal circle
Between the first joint 2 and piston 6, inner seal circle 19 is between piston 6 and piston rod 5.
The present embodiment is preferred forms, and main shaft is cased with piston rod, and piston rod connects piston, the first joint one
End connection has piston end cap, and the other end connects the first sealing member, and the second joint is connected with main shaft by the second sealing member, and first
Joint, the second joint and main shaft surround adapter cavity, and motor housing, main shaft and piston end cap surround inner chamber, and the first joint has
First pressure compensation opening, piston end cap has the second pressure compensation opening, by using the first sealing member and the second sealing member phase
In conjunction with mode, for the single sealing of prior art, it is possible to effectively extend the maintenance period of motor；By piston balanced seal
Between pressure differential, make to be sealed under zero pressure difference environment and work, improve sealing reliability, effectively prevent motor internal thin oil from letting out
Leakage and outside multi-phase fluid enter motor internal, and then can ensure motor steady operation under high temperature, environment under high pressure.On piston
Being cased with outer side seal circle, upper cover of piston rod has inner seal circle, and outer side seal circle is between the first joint and piston, and inner side is close
Seal, between piston and piston rod, by arranging inner seal circle and outer side seal circle, has good sealing effectiveness, energy
Enough prevent piston from producing gap with the first joint and piston rod respectively, it is ensured that piston stability in use, make piston move more smooth and easy,
It is easy to regulate the pressure balance between inner chamber and adapter cavity.
Claims (6)
1. a spindle seal system for work drive motor under high temperature or environment under high pressure, including be connected with motor housing (1)
First joint (2) and the second joint (4) being connected with main shaft (3), the first joint (2) and the second joint (4) be threaded connection,
It is characterized in that: be cased with piston rod (5) on described main shaft (3), the upper connection of piston rod (5) has piston (6), the first joint (2)
End connection has piston end cap (7), and the other end connects the first sealing member, and described second joint (4) passes through the second sealing member and master
Axle (3) connects, and the first joint (2), the second joint (4) and main shaft (3) surround adapter cavity (8), motor housing (1), main shaft (3) and
Piston end cap (7) surrounds inner chamber (9), described first joint (2) has the first pressure compensation opening (10), on piston end cap (7)
Have the second pressure compensation opening (11).
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure the most according to claim 1, it is special
Levy and be: described first sealing member is end surface mechanical sealing, including stationary ring (12), spring (13), rotating ring (14) and snap ring (15),
Stationary ring (12) is fixed on the first joint (2), and snap ring (15) is connected on main shaft (3), and stationary ring (12) and rotating ring (14) pass through bullet
Spring (13) connects；Second sealing member is radial seal, including journal bearing (16) and radial direction seal ring (17), journal bearing (16)
Being enclosed within main shaft (3), the second joint (4) and main shaft (3) are connected by radial direction seal ring (17).
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure the most according to claim 1, it is special
Levy and be: described first sealing member is radial seal, including journal bearing (16) and radial direction seal ring (17), journal bearing (16)
Being enclosed within main shaft (3), the first joint (2) and main shaft (3) are connected by radial direction seal ring (17)；Second sealing member is mechanical end face
Sealing, including stationary ring (12), spring (13), rotating ring (14) and snap ring (15), stationary ring (12) is fixed on the second joint (4), card
Ring (15) is connected on main shaft (3), and stationary ring (12) and rotating ring (14) are connected by spring (13).
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure the most according to claim 1, it is special
Levying and be: described first sealing member and the second sealing member are radial seal, the first sealing member includes journal bearing (16) and footpath
To sealing ring (17), journal bearing (16) is enclosed within main shaft (3), and the first joint (2) and main shaft (3) are by radial direction seal ring (17)
Connect；Second sealing member includes journal bearing (16) and radial direction seal ring (17), and journal bearing (16) is enclosed within main shaft (3), the
Two joints (4) and main shaft (3) are connected by radial direction seal ring (17).
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure the most according to claim 1, it is special
Levying and be: described first sealing member and the second sealing member are end surface mechanical sealing, the first sealing member includes stationary ring (12), spring
(13), rotating ring (14) and snap ring (15), stationary ring (12) is fixed on the first joint (2), and snap ring (15) is connected on main shaft (3),
Stationary ring (12) and rotating ring (14) are connected by spring (13)；Second sealing member include stationary ring (12), spring (13), rotating ring (14) and
Snap ring (15), stationary ring (12) is fixed on the second joint (4), and snap ring (15) is connected on main shaft (3), stationary ring (12) and rotating ring
(14) connected by spring (13).
A kind of spindle seal system of work drive motor under high temperature or environment under high pressure the most according to claim 5, it is special
Levy and be: on described main shaft (3), be cased with journal bearing (16), journal bearing (16) be positioned at the second joint (4) and main shaft (3) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020536.4U CN205489915U (en) | 2016-01-11 | 2016-01-11 | A shaft seal system that is used for motor of working under high temperature or high voltage ring border |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020536.4U CN205489915U (en) | 2016-01-11 | 2016-01-11 | A shaft seal system that is used for motor of working under high temperature or high voltage ring border |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489915U true CN205489915U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620020536.4U Active CN205489915U (en) | 2016-01-11 | 2016-01-11 | A shaft seal system that is used for motor of working under high temperature or high voltage ring border |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205489915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515256A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Spindle sealing system for motor working under high-temperature or high-pressure environment |
-
2016
- 2016-01-11 CN CN201620020536.4U patent/CN205489915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515256A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Spindle sealing system for motor working under high-temperature or high-pressure environment |
| CN105515256B (en) * | 2016-01-11 | 2018-10-09 | 东方电气集团东方电机有限公司 | A kind of spindle seal system for work drive motor under high temperature or hyperbaric environment |
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