CN105245051B - A kind of oil charging motor - Google Patents

A kind of oil charging motor Download PDF

Info

Publication number
CN105245051B
CN105245051B CN201510796413.XA CN201510796413A CN105245051B CN 105245051 B CN105245051 B CN 105245051B CN 201510796413 A CN201510796413 A CN 201510796413A CN 105245051 B CN105245051 B CN 105245051B
Authority
CN
China
Prior art keywords
wire output
oil pocket
output protector
top chock
oil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510796413.XA
Other languages
Chinese (zh)
Other versions
CN105245051A (en
Inventor
方秀宝
吴刚
米勇
黄中波
范卫兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dongyin Technology Co., Ltd.
Original Assignee
ZHEJIANG DONGYIN PUMP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG DONGYIN PUMP CO Ltd filed Critical ZHEJIANG DONGYIN PUMP CO Ltd
Priority to CN201510796413.XA priority Critical patent/CN105245051B/en
Publication of CN105245051A publication Critical patent/CN105245051A/en
Application granted granted Critical
Publication of CN105245051B publication Critical patent/CN105245051B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a kind of oil charging motor, belong to motor device technical field.The problem of it solves existing oil charging motor and carries out needs perforate on upper cap during air-leakage test, and cumbersome.This oil charging motor, including machine barrel, top chock and upper cap, top chock seals the end for being connected in machine barrel, upper cap sealing is connected on top chock, detection hole is offered on top chock, fixation is plugged with wire output protector in detection hole, cable-through hole is offered on wire output protector vertically, one end of wire output protector is stretched into oil pocket, and stretch into there is limiting section on one end periphery wall of oil pocket, one end that wire output protector stretches into oil pocket also has and can guide the gas extrusion wire output protector in oil pocket and the guiding structure passed through between wire output protector periphery wall and detection hole hole wall.When carrying out air-tight test, without the perforate on upper cap, and once, experiment can detect the air-tightness of air cavity and oil pocket simultaneously to this oil charging motor.

Description

A kind of oil charging motor
Technical field
The invention belongs to motor device technical field, it is related to a kind of oil charging motor.
Background technology
Filling type motor is used mainly for driving immersible pump, is widely used in agricultural, industrial and mining enterprises, coal mine drainage and city and is supplied Water and plateau band extract underground water etc., and the motor has anti-sand, erosion-resisting feature, larger and have weak corruption available for sand content In the water of erosion.As shown in figure 1, existing oil charging motor is made up of machine barrel 1, top chock 2, upper cap 3 etc., oil pocket is formed in machine barrel, Need to be filled with certain lubricating oil, and air cavity is formed in upper cap 3, electronic component, therefore air cavity and oil pocket are installed in air cavity Need independent sealed, it is to avoid the lubricating oil in oil pocket enters air cavity and damages electronic component, and the cable in oil pocket needs to enter In air cavity, therefore as shown in Fig. 2 offer wire hole 7 on top chock 2, wire output protector 6 is provided with wire hole 7, and go out Line sheath 6 is locked by sealing bolt 71, and the air-tightness to oil pocket and air cavity is needed after oil charging motor is assembled Detected, now need to carry out perforate to machine barrel 1 and upper cap 3 respectively, high pressure then is injected to air cavity and oil pocket one by one Gas is tested, and needs to seal the hole opened up after off-test, because upper cap 3 generally uses stainless steel thin slice system Into, it is difficult to fixing bolt, it is therefore desirable in the tapping welded nut of upper cap, then sealed by bolt and sealing gasket, Need to operate twice to detect air cavity and oil pocket when not only testing, while perforate on upper cap and resealing and can cause work Sequence complexity and cost increase, and during later stage use influence air cavity sealing.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of oil charging motor, the oil-filled electricity When carrying out air-tight test, without the perforate on upper cap, and once, experiment can detect the airtight of air cavity and oil pocket simultaneously to machine Property.
The purpose of the present invention can be realized by following technical proposal:A kind of oil charging motor, including machine barrel, top chock and Upper cap, one end closing of the machine barrel, top chock seals the other end for being connected in machine barrel, and the upper cap sealing is connected in axle In bearing, oil pocket is formed between the top chock and machine barrel, air cavity is formed between top chock and upper cap, it is characterised in that Offer to fix in the detection hole of connection oil pocket and air cavity, the detection hole on the top chock and be plugged with column and with bullet The wire output protector of property, the periphery wall of the wire output protector is mutually compressed with the hole wall of detection hole, opened up vertically on the wire output protector There is the cable in cable-through hole, oil pocket to pass through cable-through hole, and cable and cable-through hole tight fit, oil is stretched into one end of the wire output protector Intracavitary, and the limiting section with protrusion is stretched on one end periphery wall of oil pocket, the side of the limiting section and top chock offsets Lean on, the wire output protector stretches into one end of oil pocket and also had and can be guided when the air pressure in oil pocket is increased to setting value in oil pocket Gas extrusion wire output protector and the guiding structure that is passed through between wire output protector periphery wall and detection hole hole wall.
The parts such as motor shaft, rotor, stator are installed, while in oil pocket in the oil pocket formed between top chock and machine barrel Need to be filled with a certain amount of lubricating oil for cooling down and lubricating, electronics is installed in the air cavity formed between top chock and upper cap Cable in the parts such as component, control panel, oil pocket through wire output protector cable-through hole and with the electronic component in air cavity It is connected, then is passed by upper cap, under normal operating condition, the gentle intracavitary of oil pocket is normal pressure, therefore flexible outlet shield Seal, sealed between cable and cable-through hole between set and detection hole, it is to avoid the lubricating oil in oil pocket enters air cavity, it is necessary to oil pocket When carrying out air-leakage test experiment with air cavity, by the oil-filled hole on machine barrel, certain machine barrel wall thickness can also be opened on machine barrel Hole, so that gases at high pressure are injected to oil pocket, certainly due to having limiting section, limiting section air pressure liter in oil pocket on wire output protector Wire output protector is avoided to depart from detection hole when high, when the air pressure in oil pocket reaches setting value, guiding structure can be guided in oil pocket Gas so that the flexible wire output protector of gas extrusion in oil pocket, i.e. wire output protector periphery wall and detection hole hole wall it Between there is gas in gap, therefore oil pocket and can enter in air cavity so that the air pressure in air pressure and air cavity in oil pocket reaches Balance, i.e., once just can realize the air-leakage test of oil pocket and air cavity simultaneously, therefore avoid on upper cap to oil pocket inflation Perforate gas injection, also simplify the program of air-leakage test experiment.
In above-mentioned oil charging motor, the limiting section is convex annular edge, and the external diameter of the limiting section is more than detection hole Aperture, and the end face of limiting section and the side of top chock fit and compress.Limiting section has the function of positioning wire output protector, together When with top chock side fit and compress under normal operating condition, that is, add close between wire output protector and top chock Front cover is accumulated, and improves sealing.
In above-mentioned oil charging motor, the guiding structure crosses air drain including at least one strip, and this is crossed air drain and opened It is located on the end face that limiting section mutually reclines with top chock, and crosses the inlet end port of air drain and is located on the periphery wall of limiting section. When air pressure is raised in oil pocket, the gas in oil pocket can enter air drain, while going out in the outlet side radial compression for crossing air drain Line sheath, i.e. wire output protector can radial deformation shrink, gas further wire output protector periphery wall and detection hole hole wall it Between extrude and enter air cavity in.
In above-mentioned oil charging motor, the air drain excessively has five, and this five air drains excessively are circumferentially uniform, described to cross air drain Outlet side extend on the periphery wall of wire output protector.The uniform air drain excessively of circumference can be such that wire output protector is uniformly extruded, And the air drain excessively extended on wire output protector periphery wall can make gas directly extrude wire output protector.
In above-mentioned oil charging motor, the guiding structure include import the conical surface, the importing conical surface be located at limiting section with it is upper The end face edge that bearing block mutually reclines, and import the less one end edge of the conical surface and top chock and be in contact sideways.In oil pocket Gas can import the conical surface at extrude limiting section so that produce gap, gas between spacing end surface and top chock side Body enters further extruding radial extruding wire output protector behind the gap.
In above-mentioned oil charging motor, the aperture edge at the detection hole two ends is respectively provided with arc angling.Detection hole direction The arc angling of oil pocket one end can guide gas to enter between wire output protector periphery wall and detection hole hole wall so that gas more holds Air cavity is easily entered by detection hole.
In above-mentioned oil charging motor, one end of the wire output protector is stretched into air cavity, and stretches into one end periphery of air cavity Circumferentially there is convex edge, the external diameter on the convex edge is more than the aperture of detection hole on wall, and the end face on convex edge with it is upper The side of bearing block, which fits, to be compressed.Convex along with limiting section coordinate wire output protector is fixed in detection hole, can with it is upper Bearing block compresses to form sealing.
In above-mentioned oil charging motor, the external diameter of the limiting section is less than the external diameter on convex edge, the limiting section direction One end edge of machine barrel circumferentially has chamfer.Convex is diametrically larger, and to increase sealing area as far as possible, limiting section is straight Footpath is smaller, while there is chamfer, it is further to combine arc angling of the detection hole towards air cavity one end, will during ease of assembly In wire output protector press-in detection hole, while when chamfer can weaken air pressure rise in the intensity of limiting section outer edge, oil pocket Gas is easier to make to produce gap between limiting section and top chock, forms the point of penetration of gas extrusion wire output protector.
In above-mentioned oil charging motor, the wire output protector is made of elastomeric material.Elastomeric material has preferably close Feng Xing, while having preferably elasticity and deformability.
Compared with prior art, this oil charging motor has advantages below:
1st, due under normal operating condition, the gentle intracavitary of oil pocket is normal pressure, thus flexible wire output protector with Seal, sealed between cable and cable-through hole, it is to avoid the lubricating oil in oil pocket enters air cavity between detection hole.
2nd, because when the air pressure in oil pocket reaches setting value, guiding structure can guide the gas in oil pocket so that oil The flexible wire output protector of the gas extrusion of intracavitary, therefore gas in oil pocket can enter in air cavity, i.e., once to oil pocket Inflation can just realize the air-leakage test of oil pocket and air cavity simultaneously, it is to avoid on upper cap perforate gas injection, also simplify airtight Property detection experiment program.
3rd, because detection hole towards oil pocket one end has arc angling, therefore, it is possible to guide gas to enter wire output protector periphery Between wall and detection hole hole wall so that gas enters air cavity more easily by detection hole.
Brief description of the drawings
Fig. 1 is the structure sectional view of existing oil charging motor.
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.
Fig. 3 is the structure sectional view of this oil charging motor.
Fig. 4 is the schematic enlarged-scale view at B in Fig. 3.
Fig. 5 is the structure sectional view of wire output protector.
Fig. 6 is the lateral partial structurtes sectional view of the oil charging motor in embodiment two.
In figure, 1, machine barrel;2nd, top chock;21st, detection hole;22nd, arc angling;3rd, upper cap;4th, oil pocket;5th, air cavity;6、 Wire output protector;61st, cable-through hole;62nd, limiting section;621st, air drain is crossed;622nd, the conical surface is imported;623rd, chamfer;63rd, convex Edge;7th, wire hole;71st, sealing bolt.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described, But the present invention is not limited to these embodiments.
Embodiment one:
As shown in Figure 3, Figure 4, a kind of oil charging motor, including machine barrel 1, top chock 2 and upper cap 3, an end seal of machine barrel 1 Close, top chock 2 seals the other end for being connected in machine barrel 1, the upper sealing of cap 3 is connected on top chock 2, top chock 2 and machine Oil pocket 4 is formed between cylinder 1, for installing the parts such as motor shaft, rotor, stator, while needing to be filled with a certain amount of profit in oil pocket 4 Lubricating oil is used to cool down and lubricate, and air cavity 5 is formed between top chock 2 and upper cap 3, for being provided with electronic component, chain of command Fixation in the detection hole 21 of connection oil pocket 4 and air cavity 5, detection hole 21 is offered on the parts such as plate, top chock 2 and is plugged with column And flexible wire output protector 6, the periphery wall of the wire output protector 6 mutually compresses with the hole wall of detection hole 21, edge on wire output protector 6 Axially offer cable in cable-through hole 61, oil pocket 4 through the cable-through hole 61 of wire output protector 6 and with the electronics member device in air cavity 5 Part is connected, then is passed by upper cap 3, and cable is realized with the tight fit of cable-through hole 61 and sealed.Under normal operating condition, oil pocket 4 is gentle It is to be sealed between normal pressure, therefore flexible wire output protector 6 and detection hole 21 in chamber 5, it is close between cable and cable-through hole 61 Envelope, it is to avoid the lubricating oil in oil pocket 4 enters air cavity 5.One end of wire output protector 6 is stretched into oil pocket 4, and stretches into one end of oil pocket 4 There is the limiting section 62 of protrusion, the side of limiting section 62 and top chock 2 leans, and wire output protector 6 stretches into oil pocket 4 on periphery wall One end also have gas extrusion wire output protector 6 in oil pocket 4 can be guided when the air pressure in oil pocket 4 is increased to setting value simultaneously The guiding structure passed through between the periphery wall of wire output protector 6 and the hole wall of detection hole 21.Need to carry out oil pocket 4 and air cavity 5 airtight Property detection experiment when, by the oil-filled hole on machine barrel 1, certain wall thickness of machine barrel 1, can also the perforate on machine barrel 1 so as to oil pocket 4 injection gases at high pressure, certainly due to having limiting section 62 on wire output protector 6, the limiting section 62 is kept away when air pressure is raised in oil pocket 4 Exempt from wire output protector 6 and depart from detection hole 21, when the air pressure in oil pocket 4 reaches setting value, guiding structure can be guided in oil pocket 4 Gas so that the flexible wire output protector 6 of gas extrusion in oil pocket 4, the i.e. periphery wall of wire output protector 6 and the hole wall of detection hole 21 Between there is gas in gap, therefore oil pocket 4 and can enter in air cavity 5 so that the air pressure in oil pocket 4 and the gas in air cavity 5 Pressure reaches balance, i.e., once oil pocket 4 is inflated just can be while realize the air-leakage test of oil pocket 4 and air cavity 5, therefore avoid The perforate gas injection on upper cap 3, also simplify the program of air-leakage test experiment.
Specifically, with reference to shown in Fig. 5, limiting section 62 is convex annular edge, and the external diameter of limiting section 62 is more than detection hole 21 Aperture, and the end face of limiting section 62 and the side of top chock 2 fit and compress, limiting section 62 has positioning wire output protector 6 Function, compresses while being fitted under normal operating condition with the side of top chock 2, that is, adds wire output protector 6 and upper bearing (metal) Sealing area between seat 2, improves sealing.Guiding structure crosses air drain 621 including strip, and this is crossed air drain 621 and is opened in On the end face that limiting section 62 mutually reclines with top chock 2, and cross the periphery wall that the inlet end port of air drain 621 is located at limiting section 62 On, when air pressure is raised in oil pocket 4, the gas in oil pocket 4 can enter air drain 621, while crossing the outlet side of air drain 621 Radial compression wire output protector 6, i.e. wire output protector 6 can radial deformation shrink, gas further the periphery wall of wire output protector 6 with Extrude and enter in air cavity 5 between the hole wall of detection hole 21.Crossing air drain 621 has five, and this five are crossed air drain 621 circumferentially uniformly, It is circumferential it is uniform cross air drain 621 wire output protector 6 can be made uniformly to be extruded, the outlet side for crossing air drain 621 extends to outlet and protected On the periphery wall of set 6, gas can be made directly to extrude wire output protector 6.Detection hole 21 circumferentially has towards one end aperture of oil pocket 4 Arc angling 22, can guide gas to enter between the periphery wall of wire output protector 6 and the hole wall of detection hole 21 so that gas is easier to lead to Cross detection hole 21 and enter air cavity 5.
One end of wire output protector 6 is stretched into air cavity 5, and stretches into and circumferentially have convex edge on one end periphery wall of air cavity 5 63, convex is more than the aperture of detection hole 21 along 63 external diameter, and side of the convex along 63 end face and top chock 2 is affixed Conjunction is compressed, and convex coordinates along 63 with limiting section 62 is fixed on wire output protector 6 in detection hole 21, can be supported with top chock 2 Swaging is into sealing.The external diameter of limiting section 62 is less than convex along 63 external diameter, and one end edge of limiting section 62 towards machine barrel 1 is circumferential With chamfer 623, convex is relatively large in diameter along 63, to increase sealing area as far as possible, and the diameter of limiting section 62 is smaller, simultaneously With chamfer 623, further, detection hole 21 has arc angling 22, ease of assembly towards one end aperture edge of air cavity 5 When wire output protector 6 is pressed into detection hole 21, while chamfer 623 can weaken the intensity of the outer edge of limiting section 62, oil pocket 4 Gas is easier to make to produce gap between limiting section 62 and top chock 2 during interior air pressure rise, forms gas extrusion wire output protector 6 Point of penetration.Wire output protector 6 is made of elastomeric material, with preferable sealing, while having preferably elasticity and deformation Ability.
Embodiment two:
The structure of the oil charging motor and embodiment one are essentially identical, and difference is as shown in fig. 6, guiding structure includes leading Enter the conical surface 622, the importing conical surface 622 is located at the end face edge that limiting section 62 mutually reclines with top chock 2, and imports the conical surface 622 less one end edges are in contact with the side of top chock 2, and the gas in oil pocket 4 can extrude limit importing at the conical surface 622 Position portion 62 so that gap is produced between the end face of limiting section 62 and the side of top chock 2, gas is pressed further by after entering the gap Radial compression wire output protector 6.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used the terms such as machine barrel 1, top chock 2, detection hole 21 herein, it is not precluded from using other The possibility of term.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms;They are explained All disagreed into the additional limitation of any one with spirit of the present invention.

Claims (9)

1. a kind of oil charging motor, including machine barrel (1), top chock (2) and upper cap (3), one end closing of the machine barrel (1), on Bearing block (2), which is sealed, is connected in the other end of machine barrel (1), and upper cap (3) sealing is connected on top chock (2), it is described on Oil pocket (4) is formed between bearing block (2) and machine barrel (1), air cavity (5), its feature are formed between top chock (2) and upper cap (3) It is, is offered on the top chock (2) in the detection hole (21) of connection oil pocket (4) and air cavity (5), the detection hole (21) Fixation is plugged with column and flexible wire output protector (6), the periphery wall of the wire output protector (6) and the hole wall of detection hole (21) Mutually compress, the cable offered vertically on the wire output protector (6) in cable-through hole (61), oil pocket (4) passes through cable-through hole (61), And cable and cable-through hole (61) tight fit, one end of the wire output protector (6) is stretched into oil pocket (4), and stretches into the one of oil pocket (4) Hold the limiting section (62) on periphery wall with protrusion, the limiting section (62) and the side of top chock (2) lean, it is described go out Line sheath (6) stretches into one end of oil pocket (4) and also had can guide oil pocket when the air pressure in oil pocket (4) is increased to setting value (4) gas extrusion wire output protector (6) in and the importing passed through between wire output protector (6) periphery wall and detection hole (21) hole wall Structure.
2. oil charging motor according to claim 1, it is characterised in that the limiting section (62) is convex annular edge, the limit The external diameter in position portion (62) is more than the aperture of detection hole (21), and the side of the end face and top chock (2) of limiting section (62) is affixed Conjunction is compressed.
3. oil charging motor according to claim 2, it is characterised in that the guiding structure includes at least one strip Air drain (621) is crossed, this is crossed air drain (621) and is opened on the end face that limiting section (62) mutually reclines with top chock (2), and cross air drain (621) inlet end port is located on the periphery wall of limiting section (62).
4. oil charging motor according to claim 3, it is characterised in that the air drain (621) of crossing has five, and five mistakes Air drain (621) is circumferential uniform, and the outlet side for crossing air drain (621) is extended on the periphery wall of wire output protector (6).
5. oil charging motor according to claim 2, it is characterised in that the guiding structure includes importing the conical surface (622), should Import the conical surface (622) and be located at the end face edge that is mutually reclined with top chock (2) of limiting section (62), and the importing conical surface (622) compared with Small one end edge is in contact sideways with top chock (2).
6. the oil charging motor according to claim 3 or 4 or 5, it is characterised in that the aperture side at detection hole (21) two ends Edge is respectively provided with arc angling (22).
7. the oil charging motor according to claim 3 or 4 or 5, it is characterised in that one end of the wire output protector (6) is stretched into In air cavity (5), and stretch into and circumferentially there is convex along (63) on one end periphery wall of air cavity (5), the convex is along (63) External diameter is more than the aperture of detection hole (21), and the end face on convex edge (63) and the side of top chock (2) fit and compressed.
8. oil charging motor according to claim 7, it is characterised in that the external diameter of the limiting section (62) is less than convex edge (63) external diameter, the limiting section (62) circumferentially has chamfer (623) towards one end edge of machine barrel (1).
9. the oil charging motor according to claim 3 or 4 or 5, it is characterised in that the wire output protector (6) uses rubber material Material is made.
CN201510796413.XA 2015-11-18 2015-11-18 A kind of oil charging motor Active CN105245051B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510796413.XA CN105245051B (en) 2015-11-18 2015-11-18 A kind of oil charging motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510796413.XA CN105245051B (en) 2015-11-18 2015-11-18 A kind of oil charging motor

Publications (2)

Publication Number Publication Date
CN105245051A CN105245051A (en) 2016-01-13
CN105245051B true CN105245051B (en) 2017-09-22

Family

ID=55042582

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510796413.XA Active CN105245051B (en) 2015-11-18 2015-11-18 A kind of oil charging motor

Country Status (1)

Country Link
CN (1) CN105245051B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113131653B (en) * 2021-04-17 2022-08-26 台州立克科技有限公司 Mechanical automatic refrigeration and heat dissipation motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202931081U (en) * 2012-10-15 2013-05-08 浙江东音泵业股份有限公司 Diving generator inner chamber pressure balancing device for well
CN204141073U (en) * 2014-07-09 2015-02-04 苏州优德通力电气有限公司 A kind of submerged pump cable sealing structure
CN205141885U (en) * 2015-11-18 2016-04-06 浙江东音泵业股份有限公司 Oil charge motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3423456B2 (en) * 1994-12-03 2003-07-07 株式会社鶴見製作所 Motor casing for submersible pump
JP2000217296A (en) * 1999-01-25 2000-08-04 Mitsubishi Electric Corp Sealing-liquid type underwater electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202931081U (en) * 2012-10-15 2013-05-08 浙江东音泵业股份有限公司 Diving generator inner chamber pressure balancing device for well
CN204141073U (en) * 2014-07-09 2015-02-04 苏州优德通力电气有限公司 A kind of submerged pump cable sealing structure
CN205141885U (en) * 2015-11-18 2016-04-06 浙江东音泵业股份有限公司 Oil charge motor

Also Published As

Publication number Publication date
CN105245051A (en) 2016-01-13

Similar Documents

Publication Publication Date Title
EP2305956A3 (en) Sealing apparatus with multistage brush seal, corresponding sealing method and gas turbine engine
CN205841775U (en) The high-low pressure sealing device of high-speed rotating shaft
CN104089023A (en) Adjustable hinging sealing device of rectangular shielding tube push bench
CN105245051B (en) A kind of oil charging motor
CN106015360A (en) Labyrinth-type magnetofluid sealing device
CN205141885U (en) Oil charge motor
CN206175904U (en) Quick connecting device of steel pipe pressure test
CN209385319U (en) A kind of RO pump of preventing water leakage
CN203224177U (en) Sleeve sealing structure for cabin segment
CN214331477U (en) Main driving sealing device of shield machine
CN206129605U (en) Compressor and air conditioner
CN205206768U (en) Tap is led in air guide
CN205479352U (en) A oil blanket for rotary shaft seal
CN204153147U (en) Pumping anti-leak mechanical seal device
CN110056513B (en) Sealing structure of steam centrifugal compressor
CN208734541U (en) A kind of two-stage screw compressor
CN203560134U (en) Liquid-collecting device capable of preventing leakage liquid from outflow and water pump
CN205605412U (en) Intermediate draw bar sealing device for reciprocating pump
CN202091093U (en) Improved water turbine main shaft sealing device
CN104141629B (en) A kind of oil pump bearing housing lubrication system
CN205388050U (en) High pressure resistant rinse -system with many sets of mechanical seal
CN201196172Y (en) Oil compensating cylinder
CN204739414U (en) Draw -off valve
CN109356830A (en) A kind of RO pump of preventing water leakage
CN109560656A (en) A kind of connection type in reliable motor cycle water route

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200201

Address after: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525

Patentee after: Zhejiang Dongyin Technology Co., Ltd.

Address before: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525

Patentee before: Zhejiang Dongyin Pump Co., Ltd.