CN111335958B - Turbine rotor - Google Patents

Turbine rotor Download PDF

Info

Publication number
CN111335958B
CN111335958B CN202010138009.4A CN202010138009A CN111335958B CN 111335958 B CN111335958 B CN 111335958B CN 202010138009 A CN202010138009 A CN 202010138009A CN 111335958 B CN111335958 B CN 111335958B
Authority
CN
China
Prior art keywords
annular
turbine rotor
transmission shaft
side wall
thread groove
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
CN202010138009.4A
Other languages
Chinese (zh)
Other versions
CN111335958A (en
Inventor
杨帅军
余果
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.)
Shandong Rongfeng Electromechanical Co ltd
Original Assignee
Shandong Rongfeng Electromechanical 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 Shandong Rongfeng Electromechanical Co ltd filed Critical Shandong Rongfeng Electromechanical Co ltd
Priority to CN202010138009.4A priority Critical patent/CN111335958B/en
Publication of CN111335958A publication Critical patent/CN111335958A/en
Application granted granted Critical
Publication of CN111335958B publication Critical patent/CN111335958B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02Blade-carrying members, e.g. rotors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28Supporting or mounting arrangements, e.g. for turbine casing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Gasket Seals (AREA)

Abstract

The invention relates to the field of rotors, in particular to a turbine rotor which comprises a turbine rotor, an installation mechanism, a protection mechanism, an elastic mechanism, a positioning rod, a positioning groove, a second annular sealing gasket and a gasket, wherein the turbine rotor comprises a fixed sleeve and a turbine, the turbine is fixedly connected to the outer side wall of the fixed sleeve, the installation mechanism is inserted into the fixed sleeve, the installation mechanism comprises a transmission shaft, an annular fixed block, slots, insertion blocks, fixed blocks, fastening bolts and thread grooves, the transmission shaft is inserted into the fixed sleeve, the annular fixed block is fixedly sleeved on the transmission shaft, a plurality of slots are annularly arranged on the lower side wall of the fixed sleeve, and the insertion blocks are annularly arranged and fixedly connected to the upper side wall of the annular fixed block and inserted into the corresponding slots. The turbine rotor provided by the invention has the advantages that the turbine rotor is simple, rapid and detachable to install, the damaged turbine rotor is convenient to overhaul and replace, the working efficiency is high, and the cost is saved.

Description

Turbine rotor
Technical Field
The invention relates to the field of rotors, in particular to a turbine rotor.
Background
The rotor refers to a rotating body supported by a bearing. An optical disc or the like, which does not have a rotating shaft of its own, may be considered a rotor when it employs a rigid connection or an additional shaft. Rotors are widely used, one of which is called a turbine rotor, which is generally welded to a drive shaft of a mounting apparatus when the turbine rotor is mounted to the drive shaft.
To the inside turbine rotor that uses of water pump, when drawing water to the waters that impurity is more, use welded mode to go on turbine rotor and transmission shaft, it is comparatively troublesome to operate, when turbine rotor appears damaging, is difficult to dismantle the change to turbine rotor, needs carry out the whole change with turbine rotor and transmission shaft, and the cost is higher.
Therefore, there is a need to provide a new turbine rotor to solve the above technical problems.
Disclosure of Invention
To address the problems in the prior art, the present invention provides a turbine rotor.
The technical scheme adopted by the invention for solving the technical problems is as follows: a turbine rotor comprises a turbine rotor, a mounting mechanism, a protection mechanism and an elastic mechanism, wherein the turbine rotor comprises a fixed sleeve and a turbine, and the turbine is fixedly connected to the outer side wall of the fixed sleeve; the mounting mechanism comprises a transmission shaft, an annular fixed block, inserting blocks, fixed blocks and fastening bolts, the transmission shaft is inserted into the fixed sleeve, the annular fixed block is fixedly sleeved on the transmission shaft, a plurality of inserting grooves are annularly arranged and arranged on the lower side wall of the fixed sleeve, the inserting blocks are annularly arranged and fixedly connected on the upper side wall of the annular fixed block and inserted into the corresponding inserting grooves, the fixed block is fixedly connected on the upper side wall of the fixed sleeve, the fastening bolts vertically penetrate through the fixed block and are in threaded connection with the fixed block, the threaded grooves are arranged on the upper side wall of the transmission shaft, and the lower ends of the fastening bolts are inserted into the threaded grooves and are in threaded connection with the threaded grooves; the protection mechanism is in threaded connection with the upper end of the fixed sleeve; the elastic mechanism is connected inside the protection mechanism.
Preferably, the protection mechanism includes that protection casing and first annular seal fill up, the protection casing is located fixed sheathed tube upper end, and annular thread groove is seted up on fixed sheathed tube last lateral wall, just the protection casing is inserted and is located in the annular thread groove and rather than threaded connection, the fixed cover of first annular seal fill up is located on the protection casing and is arranged with the inner wall counterbalance of annular thread groove in the annular thread groove.
Preferably, the elastic mechanism comprises a spring and a connecting block, the connecting block is located in the protective cover and connected with the inner wall of the upper side of the protective cover through the spring, and the connecting block is abutted to the upper end of the fastening bolt.
Preferably, the upper side wall fixedly connected with of annular fixed block has two locating levers of symmetry setting, fixed sleeving's lower side wall is equipped with two constant head tanks of symmetry setting, and two locating levers insert respectively and locate in two constant head tanks.
Preferably, the transmission shaft is sleeved with a second annular sealing gasket, the second annular sealing gasket is located between the annular fixing block and the fixing sleeve and is abutted to the annular fixing block and the fixing sleeve, and the fastening bolt is sleeved with a gasket.
Compared with the related art, the turbine rotor provided by the invention has the following beneficial effects:
(1) when the transmission shaft of the turbine rotor on the installation equipment is connected, one end of the transmission shaft is inserted into the fixed sleeve, the insertion block is aligned to the insertion slot and inserted, the fastening bolt is screwed into the thread slot, the fastening bolt and the thread slot rotate relatively, the transmission shaft is driven to move towards the fixed sleeve, the fixed sleeve is clamped and fixed through the fastening bolt, the annular fixed block and the insertion block, the turbine rotor is installed on the transmission shaft, the turbine rotor in the device is simple, fast and detachable, the damaged turbine rotor is convenient to overhaul and replace, the working efficiency is improved, and the cost is saved.
(2) When the protective cover is screwed into the annular thread groove, the fastening bolt can be contacted with the connecting block in the protective cover, so that the spring is extruded and is in a pressing state, the elastic restoring force of the spring has a downward acting force on the fastening bolt, the fastening bolt can be prevented from loosening, the connection stability between the turbine rotor and the transmission shaft is improved, and meanwhile, the elastic restoring force of the spring also has an acting force on the protective cover, so that the thread part between the protective cover and the annular thread groove is tightly attached.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of a turbine rotor provided in accordance with the present invention;
FIG. 2 is a schematic structural view of the mounting mechanism shown in FIG. 1;
FIG. 3 is a schematic sectional top view of the annular fixing block shown in FIG. 1;
fig. 4 is a schematic top sectional view of the locking bushing of fig. 1.
Reference numbers in the figures: 1. the turbine comprises a turbine rotor, 11, a fixed sleeve, 12, a turbine, 2, a mounting mechanism, 21, a transmission shaft, 22, an annular fixed block, 23, a slot, 24, an insertion block, 25, a fixed block, 26, a fastening bolt, 27, a thread groove, 3, a protection mechanism, 31, a protection cover, 32, an annular thread groove, 33, a first annular sealing gasket, 4, an elastic mechanism, 41, a spring, 42, a connecting block, 5, a positioning rod, 6, a positioning groove, 7, a second annular sealing gasket, 8 and a gasket.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, 2, 3 and 4 in combination, a turbine rotor includes a turbine rotor 1, a mounting mechanism 2, a protection mechanism 3, an elastic mechanism 4, a positioning rod 5, a positioning groove 6, a second annular sealing gasket 7, a gasket 8, the turbine rotor 1 includes a fixed sleeve 11 and a turbine 12, the turbine 12 is fixedly connected to an outer sidewall of the fixed sleeve 11, the fixed sleeve 11 and the turbine 12 form a turbine rotor 1, the mounting mechanism 2 includes a transmission shaft 21, an annular fixed block 22, an insertion block 24, a fixed block 25 and a fastening bolt 26, the transmission shaft 21 is inserted into the fixed sleeve 11, the annular fixed block 22 is fixedly sleeved on the transmission shaft 21, a plurality of insertion slots 23 are annularly arranged on a lower sidewall of the fixed sleeve 11, and a plurality of insertion blocks 24 are annularly arranged and fixedly connected to an upper sidewall of the annular fixed block 22 and inserted into corresponding insertion slots 23, the fixed block 25 is fixedly connected to an upper sidewall of the fixed sleeve 11, the fastening bolt 26 vertically penetrates through the fixing block 25 and is in threaded connection with the fixing block, the threaded groove 27 is formed in the upper side wall of the transmission shaft 21, the lower end of the fastening bolt 26 is inserted into the threaded groove 27 and is in threaded connection with the threaded groove, when the transmission shaft 21 of the turbine rotor 1 on the installation device is connected, one end of the transmission shaft 21 is inserted into the fixing sleeve 11, the inserting block 24 is aligned with the inserting groove 23 and is inserted, the fastening bolt 26 is screwed into the threaded groove 27, the fastening bolt 26 and the threaded groove 27 rotate relatively, the transmission shaft 21 is driven to move towards the fixing sleeve 11, the fixing sleeve 11 is clamped and fixed through the fastening bolt 26, the annular fixing block 22 and the inserting block 24, and the fixing sleeve is installed on the transmission shaft 21, the turbine rotor 1 in the device is simple, fast and detachable to facilitate maintenance and replacement of the damaged turbine rotor 1, the working efficiency is improved, and the cost is saved.
Referring to fig. 1 and 2, the protection mechanism 3 is connected to the upper end of the fixing sleeve 11 by a thread, the protection mechanism 3 includes a protection cover 31 and a first annular sealing gasket 33, the protection cover 31 is located at the upper end of the fixing sleeve 11, an annular thread groove 32 is formed in the upper side wall of the fixing sleeve 11, the protection cover 31 is inserted into the annular thread groove 32 and is connected with the annular thread groove by a thread, the first annular sealing gasket 33 is fixedly sleeved on the protection cover 31 and is located in the annular thread groove 32 to abut against the inner wall of the annular thread groove 32, after the turbine rotor 1 is connected and fixed with the transmission shaft 21, the protection cover 31 is screwed into the annular thread groove 32, a gap between the annular thread groove 32 and the protection cover 31 is sealed by the first annular sealing gasket 33, and the sealing performance of the turbine rotor 1 and the transmission shaft 21 is improved.
Referring to fig. 2, the elastic mechanism 4 is connected inside the protection mechanism 3, the elastic mechanism 4 includes a spring 41 and a connecting block 42, the connecting block 42 is located in the protection cover 31 and connected to the upper inner wall of the protection cover 31 through the spring 41, and the connecting block 42 is disposed against the upper end of the fastening bolt 26, when the protection cover 31 is screwed into the annular threaded groove 32, the fastening bolt 26 will contact the connecting block 42 in the protection cover 31, thereby pressing the spring 41, so that the spring 41 is in a tightly pressed state, the elastic restoring force of the spring 41 has a downward acting force on the fastening bolt 26, so as to prevent the fastening bolt 26 from loosening, thereby improving the connection stability between the turbine rotor 1 and the transmission shaft 21, and the elastic restoring force of the spring 41 also has an acting force on the protection cover 31, so that the threaded portion between the protection cover 31 and the annular threaded groove 32 is tightly attached, thereby improving the connection stability between the protection cover 31 and the specified fixing sleeve 11, is not easy to loosen.
Referring to fig. 3 and 4, the upper side wall of the annular fixing block 22 is fixedly connected with two positioning rods 5 which are symmetrically arranged, the lower side wall of the fixing sleeve 11 is provided with two positioning grooves 6 which are symmetrically arranged, the two positioning rods 5 are respectively inserted into the two positioning grooves 6, the positioning rods 5 are arranged on the annular fixing block 22, the positioning grooves 6 are arranged on the fixing sleeve 11, when the turbine rotor 1 is connected with the transmission shaft 21, the positioning rods 5 need to be aligned with the positioning grooves 6 to be inserted, and the insertion blocks 24 are convenient to be inserted into the insertion grooves 23.
Referring to fig. 2 for illustration, the cover is equipped with the sealed 7 of second annular on the transmission shaft 21, the sealed 7 of second annular is located between annular fixed block 22 and the fixed sleeve pipe 11 and offsets the setting with it, through setting up the sealed 7 of second annular, joint gap to between annular fixed block 22 and the fixed sleeve pipe 11 seals, the installation sealing performance of turbine rotor 1 has been improved, the cover is equipped with gasket 8 on the fastening bolt 26, through setting up gasket 8, fastening bolt 26's connection stability has been improved, difficult emergence is slided.
The working principle of the device is as follows: when the turbine rotor 1 in the device is connected with the transmission shaft 21 on the installation equipment, the second annular sealing gasket 7 is sleeved on the transmission shaft 21 to slide to the upper part of the annular fixing block 22, one end of the transmission shaft 21 is inserted into the fixing sleeve 11, the positioning rod 5 is aligned with the positioning groove 6 to be inserted, the corresponding insertion block 24 is inserted into the corresponding insertion groove 23 in a guiding way, the fastening bolt 26 is screwed to be screwed into the thread groove 27, the fastening bolt 26 and the thread groove 27 rotate relatively, so that the transmission shaft 21 is driven to move into the fixing sleeve 11, the fixing sleeve 11 is clamped and fixed through the fastening bolt 26, the annular fixing block 22 and the insertion block 24, and the fixing sleeve is installed on the transmission shaft 21, the turbine rotor 1 in the device is simple, rapid and detachable to be convenient for overhauling and replacing the damaged turbine rotor 1, the working efficiency is improved, and the cost is saved, the gap at the joint between the annular fixing block 22 and the fixing sleeve 11 is sealed by the second sealing gasket 7, after the turbine rotor 1 is connected and fixed with the transmission shaft 21, the protective cover 31 is screwed in by aligning with the annular thread groove 32, the gap between the annular thread groove 32 and the protective cover 31 is sealed by the first annular sealing gasket 33, the sealing performance of the connection between the turbine rotor 1 and the transmission shaft 21 is improved, when the protective cover 31 is screwed in the annular thread groove 32, the fastening bolt 26 can be contacted with the connecting block 42 in the protective cover 31, so as to press the spring 41, so that the spring 41 is in a pressing state, the elastic restoring force of the spring 41 has a downward acting force on the fastening bolt 26, the loosening of the fastening bolt 26 can be prevented, the connection stability between the turbine rotor 1 and the transmission shaft 21 is improved, and meanwhile, the elastic restoring force of the spring 41 also has an acting force on the protective cover 31, the thread part between the protective cover 31 and the annular thread groove 32 is tightly attached, the connection stability between the protective cover 31 and the specified fixing sleeve 11 is improved, and the looseness is not easy to occur.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The turbine rotor is characterized by comprising a turbine rotor (1), an installation mechanism (2), a protection mechanism (3) and an elastic mechanism (4), wherein the turbine rotor (1) comprises a fixed sleeve (11) and a turbine (12), and the turbine (12) is fixedly connected to the outer side wall of the fixed sleeve (11); the mounting mechanism (2) comprises a transmission shaft (21), an annular fixing block (22), an inserting block (24), a fixing block (25) and a fastening bolt (26), the transmission shaft (21) is inserted into the fixed sleeve (11), the annular fixed block (22) is fixedly sleeved on the transmission shaft (21), the plurality of slots (23) are annularly arranged on the lower side wall of the fixed sleeve (11), and a plurality of inserting blocks (24) are annularly arranged and fixedly connected on the upper side wall of the annular fixing block (22) and inserted into the corresponding inserting grooves (23), the fixing block (25) is fixedly connected to the upper side wall of the fixing sleeve (11), the fastening bolt (26) vertically penetrates through the fixing block (25) and is in threaded connection with the fixing block, the thread groove (27) is formed in the upper side wall of the transmission shaft (21), the lower end of the fastening bolt (26) is inserted into the thread groove (27) and is in threaded connection with the thread groove; the protection mechanism (3) is in threaded connection with the upper end of the fixed sleeve (11); the elastic mechanism (4) is connected to the inside of the protection mechanism (3).
2. The turbine rotor according to claim 1, wherein the protection mechanism (3) comprises a protection cover (31) and a first annular sealing gasket (33), the protection cover (31) is located at the upper end of the fixing sleeve (11), an annular thread groove (32) is formed in the upper side wall of the fixing sleeve (11), the protection cover (31) is inserted into the annular thread groove (32) and is in threaded connection with the annular thread groove, and the first annular sealing gasket (33) is fixedly sleeved on the protection cover (31) and located in the annular thread groove (32) and abuts against the inner wall of the annular thread groove (32).
3. A turbine rotor according to claim 2, characterised in that the elastic means (4) comprise a spring (41) and a connecting piece (42), the connecting piece (42) being located in the protective cover (31) and being connected to the upper inner wall of the protective cover (31) by means of the spring (41), and the connecting piece (42) being arranged against the upper end of the fastening bolt (26).
4. The turbine rotor as recited in claim 1, characterized in that two symmetrically arranged positioning rods (5) are fixedly connected to the upper side wall of the annular fixing block (22), two symmetrically arranged positioning slots (6) are arranged on the lower side wall of the fixing sleeve (11), and the two positioning rods (5) are respectively inserted into the two positioning slots (6).
5. A turbine rotor according to claim 1, characterised in that a second annular sealing gasket (7) is sleeved on the transmission shaft (21), the second annular sealing gasket (7) being located between the annular fixing block (22) and the fixing sleeve (11) and being arranged against the annular fixing block; and a gasket (8) is sleeved on the fastening bolt (26).
CN202010138009.4A 2020-03-03 2020-03-03 Turbine rotor Active CN111335958B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010138009.4A CN111335958B (en) 2020-03-03 2020-03-03 Turbine rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010138009.4A CN111335958B (en) 2020-03-03 2020-03-03 Turbine rotor

Publications (2)

Publication Number Publication Date
CN111335958A CN111335958A (en) 2020-06-26
CN111335958B true CN111335958B (en) 2022-08-09

Family

ID=71179853

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010138009.4A Active CN111335958B (en) 2020-03-03 2020-03-03 Turbine rotor

Country Status (1)

Country Link
CN (1) CN111335958B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819560A1 (en) * 2001-01-12 2002-07-19 Man B & W Diesel Ag Shaft fixing system for impeller wheel with radial thrust esp for turbocompressor has sleeve engaging with wheel hub and shaft spindle
JP2011148030A (en) * 2010-01-20 2011-08-04 Toyota Motor Corp Bolt tightening apparatus
CN203879798U (en) * 2014-05-26 2014-10-15 河南众力空分设备有限公司 Transmission connection device of cantilever type impeller and transmission shaft
CN204327561U (en) * 2014-11-19 2015-05-13 福建沃隆管阀制造有限公司 A kind of centrifugal pump
CN208950647U (en) * 2018-10-12 2019-06-07 威海凌锋航空科技有限公司 A kind of miniature aviation turbojet engine high temperature impeller

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819560A1 (en) * 2001-01-12 2002-07-19 Man B & W Diesel Ag Shaft fixing system for impeller wheel with radial thrust esp for turbocompressor has sleeve engaging with wheel hub and shaft spindle
JP2011148030A (en) * 2010-01-20 2011-08-04 Toyota Motor Corp Bolt tightening apparatus
CN203879798U (en) * 2014-05-26 2014-10-15 河南众力空分设备有限公司 Transmission connection device of cantilever type impeller and transmission shaft
CN204327561U (en) * 2014-11-19 2015-05-13 福建沃隆管阀制造有限公司 A kind of centrifugal pump
CN208950647U (en) * 2018-10-12 2019-06-07 威海凌锋航空科技有限公司 A kind of miniature aviation turbojet engine high temperature impeller

Also Published As

Publication number Publication date
CN111335958A (en) 2020-06-26

Similar Documents

Publication Publication Date Title
CN109654230B (en) Mechanical sealing device for pump of water-jet propeller
US6438192B1 (en) Jet pump slip joint seal
CN111335958B (en) Turbine rotor
CN212868447U (en) Mechanical sealing device for pressure screen
CN215521957U (en) Improved generation filter equipment
CN109577855B (en) Top drive protection system
CN221278081U (en) Impeller coupling assembling for pump
JP2020045847A (en) Pump attaching/detaching device and pump system
CN113431802A (en) External oil feeding and discharging device of large submersible tubular pump
RU2107149C1 (en) Shaft collar equipment
CN219317244U (en) Mechanical seal module of swift installation
CN220285902U (en) Cylinder block assembly structure for hydraulic motor
CN220268235U (en) Novel bearing pedestal
CN216554457U (en) Water pump convenient for replacing mechanical seal
CN218728221U (en) Fiber grating with pre-twist structure
CN213954342U (en) Hot water pump shaft sealing structure
CN217270054U (en) High-pressure vertical pipe connector
CN218717679U (en) Mechanical seal shaft sleeve structure convenient to disassemble and assemble
CN115966947B (en) New energy plug and socket
CN220527610U (en) Cable protection tube with high compression resistance
CN215890576U (en) Axial seal structure for single-stage centrifugal pump
CN221649659U (en) Magnetic water weir meter
CN219444374U (en) Device for manufacturing packing sealing ring
CN220319888U (en) Sealing structure for pump connection
CN213950683U (en) Jacking device for water treatment reverse osmosis pipe and water pipe

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20220713

Address after: 264400 No. 33-1, Tianmu Road, Zhangjiachan Town, Wendeng District, Weihai City, Shandong Province

Applicant after: Shandong Rongfeng electromechanical Co.,Ltd.

Address before: 1 / F, block B, G4 building, phase II, innovation industrial park, Hefei hi tech Zone, Anhui 230000

Applicant before: Yang Shuaijun

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant