CN207339498U - A kind of sealing structure of submersible motor - Google Patents
A kind of sealing structure of submersible motor Download PDFInfo
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- CN207339498U CN207339498U CN201720734726.7U CN201720734726U CN207339498U CN 207339498 U CN207339498 U CN 207339498U CN 201720734726 U CN201720734726 U CN 201720734726U CN 207339498 U CN207339498 U CN 207339498U
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- sealing
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- seal
- stationary
- submersible motor
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Abstract
The utility model provides a kind of sealing structure of submersible motor, belongs to water pump technology.It solves the problems, such as that existing submersible motor stationary ring rubber ring easily occurs and burns out.The sealing structure of this submersible motor, submersible motor includes casing and armature spindle, sealing structure includes at least one set of seal assembly, seal assembly includes stationary seal ring, moving sealing ring and spring, seal groove is offered on casing inner face, stationary seal ring is positioned in seal groove, moving sealing ring is formed with stationary seal ring and sealed, sealing shroud is equipped between stationary seal ring outer circumferential surface and seal groove medial surface, the sealing shroud is in straight-tube shape, and connector is equipped between sealing shroud and stationary seal ring, stationary seal ring end face with sealing groove bottom fit against.The sealing structure of this submersible motor has preferable heat dissipation performance on the basis of sealing performance is ensured so that the service life of mechanical seal is extended, so as to improve the service life of motor.
Description
Technical field
The utility model belongs to water pump technology, is related to a kind of sealing structure of submersible motor.
Background technology
The maximum feature of deep well pump is that motor and pump are made one, it be immerse underground water well in carry out suction and it is defeated
A kind of pump of water is sent, is widely used in farmland discharging-irrigating, industrial and mining enterprises, urban water supply and sewerage and sewage disposal etc., due to motor
Pull the plug at the same time, therefore it is particularly important that sealing for motor cavity.The armature spindle of deep well pump need stretch out motor, therefore
Needing to set mechanical seal between armature spindle and top chock cavity, the stationary ring of wherein mechanical seal is positioned on cavity, and
Need to set sealing rubber ring between stationary ring and cavity so that stationary ring is formed with cavity and sealed, and rotating ring is formed with stationary ring and sealed, so
Armature spindle forms a complete seal with a whole set of mechanical seal afterwards.
Such as Chinese utility model application (application number：201120459273.4) disclosed in a kind of mechanical seal for submersible pump,
Transmission retainer plate both sides are both provided with rotating seat, and are provided with rotating ring on the inside of rotating seat, and rotating ring is provided directly with moving with rotating seat
Ring O-ring, spring is provided with rotating seat, and stationary ring is symmetrically arranged with the outside of rotating ring, stationary ring sealing ring is provided with the outside of stationary ring, should
Stationary ring sealing ring plays the sealing function between stationary ring and motor bearing seat inner cavity, but in the operational process of deep well pump, turn
Sub- axis, which is in, to be rotated at a high speed, i.e., rotating ring is resisted against on stationary ring sealing plane and rotates at a high speed, and friction between the two can produce greatly
The heat of amount, and the stationary ring rubber ring is squeezed on the end face and outer circumferential surface of stationary ring, forms package structure, causes the heat on stationary ring
Amount is difficult to distribute, so as to stationary ring rubber ring burnout phenomenon occur.
The content of the invention
The purpose of this utility model is that there are the above problem for existing technology, it is proposed that a kind of sealing of submersible motor
Structure, the sealing structure of the submersible motor have preferable heat dissipation performance on the basis of sealing performance is ensured so that machinery is close
The service life of envelope is extended, so as to improve the service life of motor.
The purpose of this utility model can be realized by following technical proposal：A kind of sealing structure of submersible motor, diving
Motor includes casing and the armature spindle of casing is stretched out in one end, and the sealing structure is arranged on casing and armature spindle including at least one set
Between seal assembly, the seal assembly includes stationary seal ring, moving sealing ring and spring, surround on the casing inner face
Armature spindle offers seal groove, and the stationary seal ring is positioned in seal groove, and the moving sealing ring and spring are set in armature spindle
On, and the end face of moving sealing ring and stationary seal ring fits against formation sealing under the action of the spring, it is characterised in that it is described
It is equipped with sealing shroud between the outer circumferential surface of stationary seal ring and the medial surface of seal groove, which is in straight-tube shape, and sealing shroud inner circumferential
The connector that sealing shroud axially position can be lived is equipped between face and stationary seal ring outer circumferential surface, in the effect of the moving sealing ring
The end face of lower stationary seal ring and the bottom surface of seal groove fit against.
Armature spindle rotates at a high speed in casing, and seal assembly seals the extended position of armature spindle, wherein spring and
Moving sealing ring with armature spindle synchronous rotary, and under the action of the spring moving sealing ring be resisted against on stationary seal ring carry out it is close
Envelope, stationary seal ring is fixed in seal groove, and sealing shroud is provided between stationary seal ring outer circumferential surface and seal groove medial surface, because
This can be to sealing, to ensure sealing performance, simultaneously because moving sealing ring opposing seal between stationary seal ring and seal groove
Stationary ring rotates at a high speed, therefore can produce heat, and straight-tube shape is designed to for this this sealing shroud so that the end face of stationary seal ring can be with
The bottom surface of seal groove directly abuts contact, therefore the heat produced on stationary seal ring can quickly pass to casing, so as to improve
Heat dissipation performance, avoids sealing shroud from being burned, and improves the service life of submersible motor, wherein in view of sealing shroud is in straight-tube shape, therefore
Connector is set, the connector positioned at sealing shroud inner peripheral surface and stationary seal ring outer circumferential surface between, will not to stationary seal ring end face and
Sealing groove bottom directly abuts generation interference, while connector carries out axially position to sealing shroud, avoids long-time service process
Middle sealing shroud appearance is axially displaced, so as to ensure sealing performance.
In the sealing structure of above-mentioned submersible motor, the connector includes at least one on sealing shroud inner peripheral surface
A connection convex edge, the connection convex edge is in a ring and circumferentially disposed along sealing shroud, is circumferentially opened on the outer circumferential surface of the stationary seal ring
Equipped with least one link slot, the connection convex edge is connected in link slot.Sealing shroud has elasticity, therefore will can connect convex
Along being caught in link slot, and sealing shroud tensioner is between stationary seal ring and seal groove, therefore can realize that relatively stable axial direction is determined
Position, to ensure sealing performance；Certainly improved by the heat dissipation performance that directly abuts of stationary seal ring and casing, but sealing shroud
Design there is still a need for consider certain heat-resisting and corrosion resistance, and will be arranged on can on sealing shroud inner peripheral surface for connection convex edge
The effective integral strength for improving sealing shroud；Subsidiary, sealing shroud is made of fluorubber material, therefore is processed on inner peripheral surface
It is more convenient to connect convex edge, and stationary seal ring needs higher wearability, therefore material cost is higher, and open up link slot can
The use of material is reduced, reduces cost.
In the sealing structure of above-mentioned submersible motor, the connector includes at least one clamp spring, the sealing shroud
Circumferential on the outer circumferential surface of inner peripheral surface and stationary seal ring to offer at least one link slot, the clamp spring is set in stationary seal ring
On, and the inside edge of clamp spring is connected in the link slot of stationary seal ring, the outer edge of clamp spring is connected in the link slot of sealing shroud.
The sealing shroud of the structure carries out axially position, same convenient material drawing by clamp spring, and has relatively stable axially position ability.
In the sealing structure of above-mentioned submersible motor, one end of the sealing shroud stretch out seal groove and with stationary seal ring
End face, the other end of sealing shroud are resisted against on the bottom surface of seal groove.So that sealing shroud makes full use of stationary seal ring and sealing
Axial gap space between groove, to improve sealing area, and then ensures sealing performance.
In the sealing structure of above-mentioned submersible motor, the seal assembly has three groups, and one of which seal assembly is machine
Tool sealing one, in addition two groups of seal assemblies are mechanical seal two, and the casing includes motor cylinder, bearing block and rebound, described
Bearing block and rebound are connected at the port of motor cylinder, and bearing seat is in rebound inner side, one end of the bearing block
With the annular seal space one being connected with motor tube inner chamber, annular seal space two is formed between the other end and rebound of bearing block, it is described
Mechanical seal one is arranged in annular seal space one, and two groups of mechanical seals two are arranged in annular seal space two.Bearing block is used to position rotor
Axis so that armature spindle keeps stablizing, while independent annular seal space two, wherein mechanical seal one are formed between bearing block and rebound
The inner of bearing block is sealed, the outer end to bearing block and the progress of the inner of rebound are close respectively for two groups of mechanical seals two
Envelope, so as to fulfill triple seal, has preferable sealing effect, annular seal space one and annular seal space two are also so that moving sealing ring periphery tool
There is larger space, so as to accelerate moving sealing ring heat dissipation, improve overall heat dissipation performance.
In the sealing structure of above-mentioned submersible motor, above-mentioned seal groove is offered on the inner face of the bearing block,
The mechanical seal one further includes the rotating seat one of tubular, which is set on armature spindle and by screw lock, institute
The spring for stating mechanical seal one is some wavy springs mutually folded against, which is located in rotating seat one, dynamic
Adjust pad is additionally provided with ring seat one, one end of above-mentioned wavy spring is resisted against on rotating seat one, and the other end is resisted against adjusting pad
On piece, adjust pad is resisted against on the moving sealing ring end face of mechanical seal one under the action of wavy spring.Rotating seat one passes through
Screw carries out locking positioning, and spring is folded against using multiple wavy springs, has elastic force more uniformly, stable, so that close
What envelope rotating ring was stablized is resisted against on stationary seal ring, wherein being easy to cause moving sealing ring and stationary seal ring since the elastic force of spring is excessive
Too fast abrasion, and elastic force is too small, and dust can be caused to enter between moving sealing ring and stationary seal ring, so as to destroy between the two
Oil film, therefore adjust pad is set between wavy spring and moving sealing ring, by the adjust pad energy for choosing suitable thickness
Enough adjust between moving sealing ring and stationary seal ring against pressure, so as to reach optimal sealing performance.
In the sealing structure of above-mentioned submersible motor, one radial direction of rotating seat is recessed some protrusion inner peripheral surfaces
Fin is oriented to, some guiding fins are circumferentially distributed, and the length direction for being oriented to fin is axial consistent with rotating seat one, described
Circumferentially there are some guide grooves, the guiding fin is slidably matched with guide groove on the moving sealing ring outer circumferential surface of mechanical seal one.
Coordinated by being oriented to fin with guide groove, circumferential positioning can either be carried out to moving sealing ring, while moving sealing ring is kept
Stablize, thus it is circumferentially uniform against power to stationary seal ring generation, to ensure sealing performance.
In the sealing structure of above-mentioned submersible motor, opened on the inner face of the rebound and the outer end face of bearing block
Equipped with above-mentioned seal groove, mechanical seal two described in two groups is symmetrical arranged, and two stationary seal rings of two groups of mechanical seal two point
It is not positioned in the seal groove of rebound and bearing block.Two groups of mechanical seals two are to be symmetrical arranged so that two both ends of annular seal space
Sealing effect is consistent.
In the sealing structure of above-mentioned submersible motor, the mechanical seal two further includes the rotating seat two and plate-like of tubular
Leaning seat, the moving sealing ring of mechanical seal two is connected on rotating seat two, and the spring of the mechanical seal two is helical spring,
And one end of helical spring is resisted against on rotating seat two, the other end is abutted against on seat, two under the action of two helical springs
Leaning seat leans.Two leaning seats, which abut, realizes axially position, at the same the structure design cause two rotating seats two by
To identical elastic force, so stationary seal ring is produced it is identical against power, i.e., in use when a pair of of moving sealing ring with it is close
Seal stationary ring against power it is excessive when, which can make excessive to share to another pair moving sealing ring and sealing against power transmission
Stationary ring, thus balance two pairs between moving sealing ring and stationary seal ring against pressure, improve sealing performance and service life.
In the sealing structure of above-mentioned submersible motor, there is the step of annular, in rotating seat two in the rotating seat two
Inner peripheral surface and step surface on be fixed with sealant, the moving sealing ring is resisted against on the sealant of step surface, described dynamic
Sealant on two inner peripheral surface of ring seat is interference fitted with armature spindle outer wall.Moving sealing ring and armature spindle outer wall are realized by sealant
Between sealing, while be interference fitted between sealant and armature spindle outer wall, certain circumferential direction can be produced to moving sealing ring and determined
Position power so that moving sealing ring is rotated with armature spindle synchronism stability.
Compared with prior art, the sealing structure of this submersible motor has the following advantages：
1st, since sealing shroud is designed to straight-tube shape so that the end face of stationary seal ring can be directly abutted with the bottom surface of seal groove
Contact, therefore the heat produced on stationary seal ring can quickly pass to casing, so as to improve heat dissipation performance, avoid sealing shroud quilt
Burn out.
2nd, since sealing shroud is in straight-tube shape, connection is set between sealing shroud inner peripheral surface and stationary seal ring outer circumferential surface
Part, will not interfere stationary seal ring end face and the generation that directly abuts of sealing groove bottom, while connector carries out axis to sealing shroud
To positioning, sealing shroud appearance is axially displaced during avoiding long-time service, so as to ensure sealing performance.
3rd, since the inner of mechanical seal a pair of bearing is sealed, two groups of mechanical seals two are respectively to the outer of bearing block
End and the inner of rebound are sealed, and so as to fulfill triple seal, have preferable sealing effect.
4th, axially position is realized since two leaning seats abut, it is identical against power to stationary seal ring generation, that is, exist
During use when a pair of of moving sealing ring and stationary seal ring are excessive against power, which can make excessive against power biography
Pass and share to another pair moving sealing ring and stationary seal ring, thus balance two pairs between moving sealing ring and stationary seal ring against pressure
Power, improves sealing performance and service life.
Brief description of the drawings
Fig. 1 is the lateral partial structurtes sectional view of submersible motor.
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.
Fig. 3 is the schematic enlarged-scale view at B in Fig. 1.
Fig. 4 is the connection diagram of stationary seal ring and sealing shroud in embodiment two.
In figure, 1, casing；11st, motor cylinder；12nd, bearing block；13rd, rebound；131st, annular groove；14th, annular seal space one；15、
Annular seal space two；16th, seal groove；2nd, armature spindle；21st, bearing；3a, mechanical seal one；3b, mechanical seal two；31st, stationary seal ring；
311st, link slot；32nd, moving sealing ring；321st, guide groove；33rd, sealing shroud；331st, convex edge is connected；34a, rotating seat one；341a, lead
To fin；34b, rotating seat two；341b, step；342b, sealant；35a, wavy spring；35b, helical spring；36th, adjusting pad
Piece；37th, leaning seat；371st, spacing flange；372nd, limit convex edge；38th, sealing ring；4th, anti-sand sleeve；41st, upper sleeve body；42nd, trap
Body；5th, ring skeleton；51st, in-flanges；52nd, flanging；6th, clamp spring.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one：
As shown in Figure 1, a kind of sealing structure of submersible motor, submersible motor includes casing 1 and turns in casing 11
Sub- axis 2, casing 1 include motor cylinder 11, bearing block 12 and the rebound 13 of tubular, and bearing block 12 and rebound 13 are fixed on motor
At the port of cylinder 11, and bearing block 12 is located at the inner side of rebound 13, and transition through bearing block 12 and is stretched out in one end of armature spindle 2
Plate 13.Sealing structure includes three groups of seal assemblies being arranged between casing 1 and armature spindle 2, and one of which seal assembly is machine
Tool seals a 3a, and in addition two groups of seal assemblies are two 3b of mechanical seal.With reference to shown in Fig. 2, one 3a of mechanical seal and mechanical seal
Two 3b include stationary seal ring 31, moving sealing ring 32 and spring, and the inner of bearing block 12 has annular seal space 1, the annular seal space one
14 are connected with 11 inner cavity of motor cylinder, and bearing 21 is located at the port of annular seal space 1, and armature spindle 2, which is worn, is positioned at bearing
In 21, surrounding rotor axis 2 offers seal groove 16 on the bottom surface of annular seal space 1, and the stationary seal ring 31 of one 3a of mechanical seal positions
In seal groove 16, sealing shroud 33, the sealing shroud 33 are equipped between the outer circumferential surface of stationary seal ring 31 and the medial surface of seal groove 16
In straight-tube shape and tensioner is between the outer circumferential surface of stationary seal ring 31 and the medial surface of seal groove 16, has on 33 inner peripheral surface of sealing shroud
Convex edge 331 is connected, connection convex edge 331 is in a ring and circumferentially disposed along sealing shroud 33, is circumferentially opened on the outer circumferential surface of stationary seal ring 31
Equipped with link slot 311, connection convex edge 331 is connected in link slot 311, realizes the axially position to sealing shroud 33, sealing shroud 33
One end stretch out seal groove 16 and with the end face of stationary seal ring 31, the sealing shroud 33 the other end fitting is resisted against seal groove
On 16 bottom surface.Certainly convex edge 331 and seal groove 16 are only connected during actual processing from the positioning to sealing shroud 33
Position can exchange, that is, connecting convex edge 331 can be arranged on the outer circumferential surface of stationary seal ring 31, and link slot 311 is opened in
On the inner peripheral surface of sealing shroud 33.The spring of one 3a of mechanical seal is some wavy spring 35a, and some wavy spring 35a are mutual
Fold against, one 3a of mechanical seal further includes one 34a of rotating seat and adjust pad 36 of tubular, the moving sealing ring of one 3a of mechanical seal
32nd, wavy spring 35a and one 34a of rotating seat is set in wherein one 34a of rotating seat on armature spindle 2 and passes through the spiral shell that is inserted radially into
Nail is locked, and moving sealing ring 32, some wavy spring 35a and adjust pad 36 are respectively positioned in one 34a of rotating seat, waveform bullet
One end of spring 35a is resisted against on one 34a of rotating seat, and the other end is resisted against in adjust pad 36, under the action of wavy spring 35a
Adjust pad 36 is resisted against on 32 end face of moving sealing ring of one 3a of mechanical seal, and moving sealing ring 32 is then resisted against stationary seal ring 31
Sealing is realized on end face.Wherein one 34a of rotating seat is radially recessed the guiding fin 341a of some protrusion inner peripheral surfaces, this is some
Guiding fin 341a is circumferentially distributed, and is oriented to length direction axial consistent, mechanical seal with one 34a's of rotating seat of fin 341a
Circumferentially there are some guide grooves 321 on 32 outer circumferential surface of moving sealing ring of one 3a, be oriented to fin 341a and slided with guide groove 321 and matched somebody with somebody
Close, circumferential positioning is carried out to moving sealing ring 32, sealing ring 38 is additionally provided between the moving sealing ring 32 and armature spindle 2.
With reference to shown in Fig. 3, annular seal space 2 15, the annular seal space two are formed between 13 the inner of outer end and rebound of bearing block 12
15 be in straight-tube shape, and two groups of two 3b of mechanical seal are arranged in annular seal space 2 15, specifically, the inner face and bearing block of rebound 13
Seal groove 16 is offered on 12 outer end face, two groups of two 3b of mechanical seal are symmetrical arranged, and the two of two groups of two 3b of mechanical seal
A stationary seal ring 31 is respectively positioned in the seal groove 16 of rebound 13 and bearing block 12, equally, in the close of two 3b of mechanical seal
Sealing shroud 33 also is provided between envelope 16 medial surface of 31 outer circumferential surface of stationary ring and seal groove, there is connection convex edge on 33 inner peripheral surface of sealing shroud
331, connection convex edge 331 is in a ring and circumferentially disposed along sealing shroud 33, and connection is circumferentially offered on the outer circumferential surface of stationary seal ring 31
Groove 311, connection convex edge 331 are connected in link slot 311, realize the axially position to sealing shroud 33, one end of the sealing shroud 33
Stretch out seal groove 16 and be resisted against with the end face of stationary seal ring 31, the other end of sealing shroud 33 on the bottom surface of seal groove 16.
Two 3b of mechanical seal further includes two 34b of rotating seat of tubular and the leaning seat 37 of plate-like, and two 34b of rotating seat and leaning seat 37 cover
It is located on armature spindle 2, the moving sealing ring 32 of two 3b of mechanical seal is connected on two 34b of rotating seat, the spring of two 3b of mechanical seal
It is resisted against for one end of helical spring 35b, and helical spring 35b on two 34b of rotating seat, the other end is abutted against on seat 37,
Moving sealing ring 32, which is resisted against on the end face of stationary seal ring 31, under the action of two helical spring 35b realizes sealing, and two leaning seats
37 abut and realize axially position.There is the step 341b of annular, two 34b's of rotating seat in wherein two 34b of rotating seat
Sealant 342b is fixed with inner peripheral surface and step 341b faces, moving sealing ring 32 is resisted against the sealant in step 341b faces
On 342b, the sealant 342b on two 34b inner peripheral surfaces of rotating seat is interference fitted with 2 outer wall of armature spindle.Leaning seat 37 passes through metal
Piece is stamped and formed out, its outer edge turns down to form spacing flange 371, also by being stamped and formed out circumferentially disposed limit on leaning seat 37
Position convex edge 372, the end of helical spring 35b be located at spacing flange 371 and limit convex along between 372 so that helical spring 35b guarantors
It is fixed to keep steady.
One end that rebound 13 is stretched out in armature spindle 2 is also arranged with anti-sand sleeve 4, surround and turns on the outer end end face of rebound 13
Sub- axis 2 offers annular groove 131, and ring skeleton 5 is fixed with annular groove 131, and the inside edge of the ring skeleton 5 has varus
Side 51, outer edge have flanging 52, and wherein in-flanges 51 is resisted against on 2 outer wall of armature spindle, and anti-sand sleeve 4 is tapered, including upper
Body 41 and lower body 42, the lower end of lower body 42, which is fixed, to be set on the flanging 52 of ring skeleton 5, the lower end of upper sleeve body 41
The fixed upper end edge for being set in body 42 of trapping, the upper end of upper sleeve body 41 are the less one end of diameter, and the upper end of upper sleeve body 41
Inner wall is resisted against on 2 outer wall of armature spindle.
Embodiment two：
The structure of the sealing structure of the submersible motor and embodiment one are essentially identical, and difference is as shown in figure 4, connecting
Part includes clamp spring 6, and circumferentially link slot 311, clamp spring 6 are offered on the inner peripheral surface of sealing shroud 33 and the outer circumferential surface of stationary seal ring 31
It is set on stationary seal ring 31, and the inside edge of clamp spring 6 is connected in the link slot 311 of stationary seal ring 31, the outer edge of clamp spring 6
It is connected in the link slot 311 of sealing shroud 33.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although the terms such as casing 1, motor cylinder 11, bearing block 12 are used more herein, it is not precluded from using other
The possibility of term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；Them
It is all contrary to the spirit of the present invention to be construed to any one of the additional limitations.
Claims (10)
1. a kind of sealing structure of submersible motor, submersible motor includes casing (1) and the armature spindle (2) of casing (1) is stretched out in one end,
The sealing structure includes the seal assembly that at least one set is arranged between casing (1) and armature spindle (2), and the seal assembly is equal
Including stationary seal ring (31), moving sealing ring (32) and spring, surrounding rotor axis (2) offers close on casing (1) inner face
Sealing groove (16), the stationary seal ring (31) are positioned in seal groove (16), and the moving sealing ring (32) and spring are set in rotor
On axis (2), and the end face of moving sealing ring (32) and stationary seal ring (31) fits against formation sealing under the action of the spring, its
It is characterized in that, sealing shroud (33) is equipped between the outer circumferential surface of the stationary seal ring (31) and the medial surface of seal groove (16), this is close
Big envelope (33) is in straight-tube shape, and between sealing shroud (33) inner peripheral surface and stationary seal ring (31) outer circumferential surface be equipped with can be by sealing shroud
(33) connector that axially position is lived, the end face of stationary seal ring (31) and seal groove under the action of the moving sealing ring (32)
(16) bottom surface fit against.
2. the sealing structure of submersible motor according to claim 1, it is characterised in that the connector is included positioned at sealing
At least one connection convex edge (331) on (33) inner peripheral surface is covered, connection convex edge (331) is in a ring and all along sealing shroud (33)
To setting, at least one link slot (311), the connection convex edge are circumferentially offered on the outer circumferential surface of the stationary seal ring (31)
(331) it is connected in link slot (311).
3. the sealing structure of submersible motor according to claim 1, it is characterised in that the connector includes at least one
It is circumferential on clamp spring (6), the inner peripheral surface of the sealing shroud (33) and the outer circumferential surface of stationary seal ring (31) to offer at least one company
Access slot (311), the clamp spring (6) is set on stationary seal ring (31), and the inside edge of clamp spring (6) is connected to stationary seal ring (31)
Link slot (311) in, the outer edge of clamp spring (6) is connected in the link slot (311) of sealing shroud (33).
4. the sealing structure of the submersible motor according to claim 1 or 2 or 3, it is characterised in that the sealing shroud (33)
One end stretches out seal groove (16) and is resisted against seal groove with the end face of stationary seal ring (31), the other end of sealing shroud (33)
(16) on bottom surface.
5. the sealing structure of the submersible motor according to claim 1 or 2 or 3, it is characterised in that the seal assembly has three
Group, one of which seal assembly are mechanical seal one (3a), and in addition two groups of seal assemblies are mechanical seal two (3b), the casing
(1) motor cylinder (11), bearing block (12) and rebound (13) are included, the bearing block (12) and rebound (13) are connected in electricity
At the port of machine barrel (11), and bearing block (12) is located on the inside of rebound (13), and one end of the bearing block (12) has and electricity
The annular seal space one (14) that machine barrel (11) inner cavity is connected, annular seal space is formed between the other end and rebound (13) of bearing block (12)
Two (15), the mechanical seal one (3a) are arranged in annular seal space one (14), and two groups of mechanical seals two (3b) are arranged on annular seal space
In two (15).
6. the sealing structure of submersible motor according to claim 5, it is characterised in that the mechanical seal one (3a) is also wrapped
The rotating seat one (34a) of tubular is included, which is set on armature spindle (2) and by screw lock, the machinery
The spring for sealing one (3a) is some wavy springs (35a) mutually folded against, which is located at rotating seat one
In (34a), adjust pad (36) is additionally provided with rotating seat one (34a), one end of above-mentioned wavy spring (35a) is resisted against rotating ring
On one (34a) of seat, the other end is resisted against in adjust pad (36), and adjust pad (36) is supported under the action of wavy spring (35a)
Lean against on moving sealing ring (32) end face of mechanical seal one (3a).
7. the sealing structure of submersible motor according to claim 6, it is characterised in that the rotating seat one (34a) is radially
The guiding fin (341a) of some protrusion inner peripheral surfaces is recessed, some guiding fins (341a) are circumferentially distributed, and are oriented to convex
The length direction of rib (341a) axial consistent, moving sealing ring (32) of the mechanical seal one (3a) with rotating seat one (34a)
Circumferentially there are some guide grooves (321), the guiding fin (341a) is slidably matched with guide groove (321) on outer circumferential surface.
8. the sealing structure of submersible motor according to claim 5, it is characterised in that the inner face of the rebound (13)
Above-mentioned seal groove (16) is offered with the outer end face of bearing block (12), mechanical seal two (3b) described in two groups is symmetrically set
Put, and two stationary seal rings (31) of two groups of mechanical seals two (3b) are respectively positioned at the close of rebound (13) and bearing block (12)
In sealing groove (16).
9. the sealing structure of submersible motor according to claim 8, it is characterised in that the mechanical seal two (3b) is also wrapped
Include the rotating seat two (34b) of tubular and the leaning seat (37) of plate-like, the moving sealing ring (32) of mechanical seal two (3b) is connected in dynamic
In ring seat two (34b), the spring of the mechanical seal two (3b) is helical spring (35b), and one end of helical spring (35b) is supported
Lean against on rotating seat two (34b), the other end is abutted against on seat (37), under the action of two helical springs (35b) two against
Seat (37) leans.
10. the sealing structure of submersible motor according to claim 9, it is characterised in that tool in the rotating seat two (34b)
There is the step (341b) of annular, sealant is fixed with the inner peripheral surface of rotating seat two (34b) and step (341b) face
(342b), the moving sealing ring (32) are resisted against on the sealant (342b) in step (341b) face, in the rotating seat two (34b)
Sealant (342b) on side face is interference fitted with armature spindle (2) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734726.7U CN207339498U (en) | 2017-06-22 | 2017-06-22 | A kind of sealing structure of submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734726.7U CN207339498U (en) | 2017-06-22 | 2017-06-22 | A kind of sealing structure of submersible motor |
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| Publication Number | Publication Date |
|---|---|
| CN207339498U true CN207339498U (en) | 2018-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720734726.7U Withdrawn - After Issue CN207339498U (en) | 2017-06-22 | 2017-06-22 | A kind of sealing structure of submersible motor |
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| CN (1) | CN207339498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070057A (en) * | 2017-06-22 | 2017-08-18 | 林利兵 | A kind of sealing structure of submersible motor |
| CN109357013A (en) * | 2018-11-21 | 2019-02-19 | 四川日机密封件股份有限公司 | A kind of mechanically-sealing apparatus being applicable to multiple degrees of freedom displacement |
-
2017
- 2017-06-22 CN CN201720734726.7U patent/CN207339498U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070057A (en) * | 2017-06-22 | 2017-08-18 | 林利兵 | A kind of sealing structure of submersible motor |
| CN107070057B (en) * | 2017-06-22 | 2023-10-20 | 台州锦霸工贸有限公司 | Sealing structure of submersible motor |
| CN109357013A (en) * | 2018-11-21 | 2019-02-19 | 四川日机密封件股份有限公司 | A kind of mechanically-sealing apparatus being applicable to multiple degrees of freedom displacement |
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Address after: 317500 No.5, Wanjin Road, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Patentee after: Jinba Technology Co.,Ltd. Address before: The town of Wenling City, Taizhou City, Zhejiang province 317525 Tan Village Patentee before: Jinba Technology Co.,Ltd. |
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