CN112217362A - Centrifugal pump capable of automatically correcting rotor unbalance and correction method thereof - Google Patents
Centrifugal pump capable of automatically correcting rotor unbalance and correction method thereof Download PDFInfo
- Publication number
- CN112217362A CN112217362A CN202011026018.0A CN202011026018A CN112217362A CN 112217362 A CN112217362 A CN 112217362A CN 202011026018 A CN202011026018 A CN 202011026018A CN 112217362 A CN112217362 A CN 112217362A
- Authority
- CN
- China
- Prior art keywords
- plate
- base
- nut seat
- sliding block
- centrifugal pump
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
Abstract
The invention discloses a centrifugal pump capable of automatically correcting unbalance of a rotor, which comprises a bottom plate, fastening bolts, a base and a pump body, wherein the pump body is fixedly arranged on the base, the bottom of the base is provided with the bottom plate, the fastening bolts are respectively arranged at the four corners of the base, a first piston rod in the base is controlled to move downwards through a first hydraulic cylinder, a first limiting rod can limit the moving direction of a lifting plate, the moving stability of the lifting plate is improved, the magnetic plate falls into a bolt frame, the fastening bolts in the bolt frame are absorbed, the lifting of the rotating plate is controlled, the rotating plate is controlled to rotate through an output shaft of a rotating motor, the fastening bolts are placed in through holes of the base, the feeding work is realized, manual feeding is not needed, the workload of workers is reduced, the rotating plate is rotated after feeding, the pressure plate moves to the upper side of the base, and two first piston rods are controlled to move downwards synchronously, and synchronously pressing down the base to correct the position of the pump body.
Description
Technical Field
The invention relates to the field of centrifugal cup equipment, in particular to a centrifugal pump capable of automatically correcting rotor unbalance and a correction method thereof.
Background
The centrifugal pump is a pump which conveys liquid by the centrifugal force generated when an impeller rotates, and in the use process of the centrifugal pump, mechanical violent vibration occurs, so that the device cannot normally run and is mostly caused by unbalance of a rotor.
Most of the existing unbalanced solutions of the rotor are to install a dismounting device again, check the tightness of bolts, consume long time for all dismounting, are difficult to ensure the balance of a pump body base in a mode of fixing the bolts manually, cannot fix the bottom plates of centrifugal pumps with different sizes, are inconvenient to fix and dismount, and are inconvenient to correct; the existing rotor correction device needs to manually place fastening bolts into through holes of a base to realize feeding work, and cannot correct the position of a pump body; the existing rotor correction device can only screw and fix the fastening bolt by moving the position of the pump body, cannot adjust the position of a screwing sleeve and is inconvenient to use.
Disclosure of Invention
The invention aims to provide a centrifugal pump capable of automatically correcting rotor unbalance and a correction method thereof, and aims to solve the problems that most existing rotor unbalance solving methods are dismounting devices for resetting, the tightness of bolts is checked, the time consumed for dismounting is long, the balance of a pump body base is difficult to ensure through a manual bolt fixing mode, the existing rotor correcting devices cannot fix the base plates of centrifugal pumps with different sizes, the fixing and dismounting are inconvenient, and the correction work is inconvenient; the existing rotor correction device needs to manually place fastening bolts into through holes of a base to realize feeding work, and cannot correct the position of a pump body; the existing rotor correction device can only screw and fix a fastening bolt by moving the position of a pump body, cannot adjust the position of a screwing sleeve and is inconvenient to use.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a centrifugal pump that can automatic correction rotor unbalance, includes bottom plate, fastening bolt, base and the pump body, the pump body is fixed to be set up on the base, and the bottom of base is provided with the bottom plate, and the four corners position of base is provided with fastening bolt respectively, and the through-hole has been seted up respectively to the four corners position of base, and threaded hole has been seted up respectively on the bottom plate that corresponds the position with four through-holes, and the through-hole on the base is passed respectively to every fastening bolt's bottom and threaded hole threaded connection on.
A correction method of a centrifugal pump capable of automatically correcting rotor unbalance specifically comprises the following steps:
the method comprises the following steps: after the centrifugal pump is placed on a base plate of the rotor correction device, the base plate and the base plate are fixed, the moving plate is pushed by a handle to move on the transverse sliding rail, the position of the centrifugal pump is adjusted, a plurality of threaded holes are formed in the base plate, and the base plate is fixed on the base plate through bolts;
step two: the first piston rods in the first hydraulic cylinder are controlled to move downwards, the first limiting rods can limit the moving direction of the lifting plate, the stability of the lifting plate in moving is improved, the magnetic plate falls into the bolt frame, fastening bolts in the bolt frame are absorbed, the rotating plate is controlled to rise, the rotating plate is controlled to rotate through an output shaft of a rotating motor, the fastening bolts are placed in through holes of the base, feeding work is achieved, the rotating plate is rotated after feeding, the pressing plate is moved to the position above the base, the two first piston rods are controlled to move downwards synchronously again, the base is synchronously pressed downwards, and the position of a pump body is corrected;
step three: the output end of a second motor drives a second screw rod to rotate, the bottom end of a second sliding block extends into the second bottom box, a nut seat is arranged at the bottom end of the second sliding block, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block moves along the top surface of the second bottom box, the transverse movement of a supporting column is realized, the output end of a first motor drives a first screw rod to rotate, the bottom end of the first sliding block extends into the interior of the first bottom box, the bottom end of the first sliding block is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block longitudinally moves along the top surface of the first bottom box, the longitudinal position adjustment work of the supporting column is realized, after the motor moves right above a fastening bolt, the fastening bolt is screwed by screwing a socket wrench at the bottom of the motor, the pump body is balanced, and the correction of the centrifugal pump is completed.
As a further scheme of the invention: the rotor correction device comprises a box body, a workbench and a support column, wherein the top of the box body is provided with the workbench, the middle position of the top surface of the workbench is fixedly provided with a second bottom box, one end of the second bottom box is fixedly provided with a second motor, a second lead screw is arranged inside the second bottom box, one end of the second lead screw penetrates through the side wall of the second bottom box and is in transmission connection with the output end of the second motor, the top of the second bottom box is provided with a second sliding block, the top of the second sliding block is fixedly provided with a first bottom box, a first lead screw is arranged inside the first bottom box, one end of the first bottom box is fixedly provided with a first motor, one end of the first lead screw penetrates through the side wall of the first bottom box and is in transmission connection with the output end of the first motor, the top of the first bottom box is provided with a first sliding block, the top of the first sliding block is fixedly provided with the support, a socket wrench is arranged at the bottom of the screwing motor; the feeding devices are symmetrically arranged on the workbench on two sides of the second bottom box, each feeding device comprises a support frame and a rotating plate, a first hydraulic cylinder is fixedly arranged in the middle of the top surface of the support frame, a lifting plate is fixedly arranged at the top end of a first piston rod in the first hydraulic cylinder, a rotating motor is arranged at the top of the lifting plate, the rotating plate is fixedly connected with an output shaft of the rotating motor, a magnetic plate is arranged at the bottom of one end of the rotating plate, a pressing plate is arranged at the bottom of the other end of the rotating plate, a second hydraulic cylinder is fixedly arranged on the bottom surface of the support frame on two sides of the first hydraulic cylinder, the top end of a second piston rod in the second hydraulic cylinder penetrates through the top surface of the support frame and extends out of the support frame, a bolt frame is fixedly arranged at the top end of the second piston rod, the second piston rod extending out of the support frame, when the centrifugal pump adjusting device is used, after the centrifugal pump is placed on the base plate, the base plate and the base plate are fixed, the moving plate is pushed by a handle to move on the transverse sliding rail, the position of the centrifugal pump is adjusted, the base plate is provided with a plurality of threaded holes, and the base plate is fixed on the base plate through bolts, so that the fixing work of the base plates of centrifugal pumps with different sizes is facilitated, the fixing and disassembling are convenient, and the correcting work is facilitated; the first piston rod in the first hydraulic cylinder is controlled to move downwards, the first limiting rod can limit the moving direction of the lifting plate, the stability of the lifting plate in moving is improved, the magnetic plate falls into the bolt frame, the fastening bolt in the bolt frame is absorbed, the rotating plate is controlled to rise, the rotating plate is controlled to rotate through the output shaft of the rotating motor, the fastening bolt is placed in the through hole of the base, the loading work is realized, manual loading is not needed, the workload of workers is reduced, the rotating plate is rotated after loading, the pressing plate is moved to the position above the base, the two first piston rods are controlled to synchronously move downwards again, the base is synchronously pressed downwards, and the position of the pump body is corrected; the output end of a second motor drives a second screw rod to rotate, the bottom end of a second sliding block extends into the second bottom box, a nut seat is arranged at the bottom end of the second sliding block, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block moves along the top surface of the second bottom box, the transverse movement of a supporting column is realized, the output end of a first motor drives a first screw rod to rotate, the bottom end of the first sliding block extends into the interior of the first bottom box, the bottom end of the first sliding block is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block longitudinally moves along the top surface of the first bottom box, the longitudinal position adjustment work of the supporting column is realized, after the motor moves right above a fastening bolt, the fastening bolt is screwed by screwing a socket wrench at the bottom of the motor, the pump body is balanced, and the correction of the rotor in the centrifugal pump is completed.
As a further scheme of the invention: the bottom of the second slider stretches into the inside of the second bottom box, the bottom of the second slider is provided with a nut seat, the second lead screw penetrates through the inside of the nut seat and is in threaded connection with the nut seat, the output end of the second motor drives the second lead screw to rotate, the bottom of the second slider stretches into the inside of the second bottom box, the bottom of the second slider is provided with the nut seat, the second lead screw penetrates through the inside of the nut seat and is in threaded connection with the nut seat, the second slider moves along the top surface of the second bottom box, and the transverse movement of the supporting column is achieved.
As a further scheme of the invention: the bottom end of the first sliding block stretches into the inside of the first bottom box, the bottom end of the first sliding block is provided with a nut seat, the first lead screw penetrates through the inside of the nut seat and is in threaded connection with the nut seat, the output end of the first motor drives the first lead screw to rotate, and the bottom end of the first sliding block stretches into the inside of the first bottom box, the bottom end of the first sliding block is provided with the nut seat, the first lead screw penetrates through the inside of the nut seat and is in threaded connection with the nut seat, so that the first sliding block longitudinally moves along the top surface of the first bottom box, and the longitudinal position adjusting work of the supporting column is achieved.
As a further scheme of the invention: the bottom four corners position of every lifter plate is provided with first gag lever post respectively, the top surface that the support frame was all passed to the bottom of every first gag lever post stretches out the below of support frame, first piston rod downstream through first pneumatic cylinder control inside it, first gag lever post can restrict the moving direction of lifter plate, stability when improving the lifter plate and removing, make the magnetic plate fall into in the bolt frame, absorb the fastening bolt in the bolt frame, the board risees is changeed in the control again, the output shaft control through rotating the motor changes the board and rotates, put into the through-hole of base with fastening bolt inside, realize the material loading work, do not need the manual work to carry out the material loading, alleviate workman's work load.
As a further scheme of the invention: the top both ends of every diaphragm respectively with the bottom fixed connection of second gag lever post, all be provided with the dead lever on the top surface of the support frame of every second gag lever post one side, can play the supporting role to the bolt frame through the dead lever, the distance of restriction bolt frame lapse simultaneously.
As a further scheme of the invention: the bottom four corners position of every support frame is provided with the supporting leg respectively, and the middle part position of every support frame bottom surface also is provided with the supporting leg, is provided with the gusset plate between the bottom of support column and the first under casing, improves the stability of structure, improves the support frame bearing capacity.
As a further scheme of the invention: the middle frame is arranged on the workbench between the two feeding devices, the transverse sliding rails are arranged on the middle frame, the movable plate is arranged at the top of each transverse sliding rail, the two base plates are arranged side by side on the movable plate, a plurality of threaded holes are formed in each base plate, two handles are arranged on the side wall of one side of the movable plate, the base plates and the base plates are fixed after the centrifugal pump is placed on the base plates, the movable plates can be pushed to move on the transverse sliding rails through the handles, the position of the centrifugal pump can be adjusted, and correction work is facilitated.
The invention has the beneficial effects that:
1. according to the invention, the handle pushes the moving plate to move on the transverse sliding rail, so that the position of the centrifugal pump is adjusted, the base plate is provided with a plurality of threaded holes, and the base plate is fixed on the base plate through bolts, so that the base plates of the centrifugal pumps with different sizes can be fixed conveniently, and the centrifugal pump can be fixed and disassembled conveniently and can be corrected conveniently;
2. according to the invention, the first piston rods in the lifting plate are controlled to move downwards by the first hydraulic cylinder, the first limiting rod can limit the moving direction of the lifting plate, the stability of the lifting plate in moving is improved, the magnetic plate falls into the bolt frame, the fastening bolts in the bolt frame are absorbed, the rotating plate is controlled to rise, the rotating plate is controlled to rotate by rotating the output shaft of the motor, the fastening bolts are placed in the through holes of the base, the loading work is realized, the manual loading is not needed, the workload of workers is reduced, the rotating plate is rotated after the loading, the pressure plate is moved to the upper side of the base, the two first piston rods are controlled to move downwards synchronously again, the base is synchronously pressed downwards, and the position of the pump body is corrected;
3. in the invention, the output end of a second motor drives a second screw rod to rotate, the bottom end of a second sliding block extends into the second bottom box, the bottom end of the second sliding block is provided with a nut seat, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block moves along the top surface of the second bottom box, the transverse movement of a supporting column is realized, the output end of a first motor drives a first screw rod to rotate, the bottom end of the first sliding block extends into the interior of the first bottom box, the bottom end of the first sliding block is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block longitudinally moves along the top surface of the first bottom box, the longitudinal position adjustment work of the supporting column is realized, after a screwing motor moves to be right above a fastening bolt, the fastening bolt is screwed by a socket wrench at the bottom of the screwing motor, the pump body is balanced, the centrifugal pump is corrected, and the problem that the rotor is unbalanced due to assembly errors is solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a centrifugal pump capable of automatically correcting rotor imbalance according to the present invention;
FIG. 2 is a schematic view of a rotor straightening device according to the present invention;
FIG. 3 is a schematic structural diagram of a loading device according to the present invention;
FIG. 4 is a schematic structural diagram of a support column of the present invention;
fig. 5 is a partial enlarged view of the invention at a in fig. 2.
In the figure: 1. a box body; 2. a work table; 3. a support frame; 4. a feeding device; 5. rotating the plate; 6. pressing a plate; 7. a support pillar; 8. screwing the motor; 9. transversely moving the sliding rail; 10. a middle frame; 12. a second bottom case; 13. a first hydraulic cylinder; 14. rotating the motor; 15. a lifting plate; 16. a first limit rod; 17. a magnetic plate; 18. a bolt frame; 19. a second hydraulic cylinder; 20. a second limiting rod; 21. a transverse plate; 22. moving the plate; 23. a base plate; 24. a handle; 25. a first slider; 26. a reinforcing plate; 27. a first motor; 28. a first bottom case; 29. a second slider; 30. a second motor; 100. a base plate; 101. fastening a bolt; 102. a base; 103. and a pump body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, a centrifugal pump capable of automatically correcting rotor imbalance includes a bottom plate 100, fastening bolts 101, a base 102 and a pump body 103, wherein the pump body 103 is fixedly disposed on the base 102, the bottom of the base 102 is provided with the bottom plate 100, the fastening bolts 101 are respectively disposed at four corners of the base 102, the through holes are respectively disposed at the four corners of the base 102, the bottom plate 100 corresponding to the four through holes is respectively provided with a threaded hole, and the bottom end of each fastening bolt 101 respectively penetrates through the through hole on the base 102 to be in threaded connection with the threaded hole on the bottom plate 100.
A correction method of a centrifugal pump capable of automatically correcting rotor unbalance specifically comprises the following steps:
the method comprises the following steps: after the centrifugal pump is placed on a base plate 23 of the rotor correction device, a base plate 100 and the base plate 23 are fixed, a moving plate 22 is pushed to move on a transverse sliding rail 9 through a handle 24, the position of the centrifugal pump is adjusted, a plurality of threaded holes are formed in the base plate 23, the base plate 100 is fixed on the base plate 23 through bolts, the base plates 100 of the centrifugal pumps with different sizes can be fixed conveniently, the fixing and disassembling are convenient, and the correction work is convenient;
step two: the first piston rods in the first hydraulic cylinder 13 are controlled to move downwards, the first limiting rod 16 can limit the moving direction of the lifting plate 15, the stability of the lifting plate 15 in moving is improved, the magnetic plate 17 falls into the bolt frame 18, the fastening bolts 101 in the bolt frame 18 are sucked, the rotating plate 5 is controlled to rise, the rotating plate 5 is controlled to rotate by rotating the output shaft of the motor 14, the fastening bolts 101 are placed in the through holes of the base 102, the feeding work is achieved, manual feeding is not needed, the workload of workers is reduced, the rotating plate 5 is rotated after feeding, the pressure plate 6 is moved to the position above the base 102, the two first piston rods are controlled to move downwards synchronously again, the base 102 is pressed synchronously, and the position of the pump body 103 is corrected;
step three: the output end of the second motor 30 drives the second screw rod to rotate, the bottom end of the second sliding block 29 extends into the second bottom box 12, the bottom end of the second sliding block 29 is provided with a nut seat, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block 29 moves along the top surface of the second bottom box 12, the transverse movement of the supporting column 7 is realized, the output end of the first motor 27 drives the first screw rod to rotate, the bottom end of the first sliding block 25 extends into the interior of the first bottom box 28, the bottom end of the first sliding block 25 is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block 25 longitudinally moves along the top surface of the first bottom box 28, the longitudinal position adjustment work of the supporting column 7 is realized, after the screwing motor 8 moves right above the fastening bolt 101, the socket wrench at the bottom of the motor 8 is used, tightening the fastening bolt 101 to balance the pump body 103, thereby completing the correction of the centrifugal pump.
The rotor correction device comprises a box body 1, a workbench 2 and support columns 7, wherein the top of the box body 1 is provided with the workbench 2, the middle position of the top surface of the workbench 2 is fixedly provided with a second bottom box 12, one end of the second bottom box 12 is fixedly provided with a second motor 30, a second lead screw is arranged inside the second bottom box 12, one end of the second lead screw penetrates through the side wall of the second bottom box 12 and is in transmission connection with the output end of the second motor 30, the top of the second bottom box 12 is provided with a second sliding block 29, the top of the second sliding block 29 is fixedly provided with a first bottom box 28, a first lead screw is arranged inside the first bottom box 28, one end of the first bottom box 28 is fixedly provided with a first motor 27, one end of the first lead screw penetrates through the side wall of the first bottom box 28 and is in transmission connection with the output end of the first motor 27, the top of the first bottom box 28 is provided with a first sliding block 25, the top of the first sliding block, the top of the supporting column 7 is fixedly connected with a screwing motor 8, and the bottom of the screwing motor 8 is provided with a socket wrench; the two sides of the second bottom box 12 are symmetrically provided with feeding devices 4 on the workbench 2, each feeding device 4 comprises a support frame 3 and a rotating plate 5, the middle position of the top surface of the support frame 3 is fixedly provided with a first hydraulic cylinder 13, the top end of a first piston rod in the first hydraulic cylinder 13 is fixedly provided with a lifting plate 15, the top of the lifting plate 15 is provided with a rotating motor 14, the output shaft of the rotating motor 14 is fixedly connected with the rotating plate 5, the bottom of one end of the rotating plate 5 is provided with a magnetic plate 17, the bottom of the other end of the rotating plate 5 is provided with a pressing plate 6, the bottom surfaces of the support frames 3 at the two sides of the first hydraulic cylinder 13 are fixedly provided with second hydraulic cylinders 19, the top ends of second piston rods in the second hydraulic cylinders 19 penetrate through the top surface of the support frame 3 and extend out of the support frame 3, the top ends of the second piston rods are fixedly provided with bolt frames 18, the two ends of the bottom of the bolt frame 18 are respectively provided with a second limiting rod 20, the bottom ends of the two second limiting rods 20 respectively penetrate through the top surface of the support frame 3, a transverse plate 21 is arranged between the two second limiting rods 20 extending below the top surface of the support frame 3, when the centrifugal pump is used, the bottom plate 100 and the backing plate 23 are fixed after the centrifugal pump is placed on the backing plate 23, the moving plate 22 is pushed to move on the transverse sliding rail 9 through the handle 24, the position of the centrifugal pump is adjusted, the backing plate 23 is provided with a plurality of threaded holes, the bottom plate 100 is fixed on the backing plate 23 through bolts, the fixing work of the bottom plates 100 of the centrifugal pumps with different sizes is facilitated, the fixing and disassembling are; the first piston rods in the first hydraulic cylinder 13 are controlled to move downwards, the first limiting rod 16 can limit the moving direction of the lifting plate 15, the stability of the lifting plate 15 in moving is improved, the magnetic plate 17 falls into the bolt frame 18, the fastening bolts 101 in the bolt frame 18 are sucked, the rotating plate 5 is controlled to rise, the rotating plate 5 is controlled to rotate by rotating the output shaft of the motor 14, the fastening bolts 101 are placed in the through holes of the base 102, the feeding work is achieved, manual feeding is not needed, the workload of workers is reduced, the rotating plate 5 is rotated after feeding, the pressure plate 6 is moved to the position above the base 102, the two first piston rods are controlled to move downwards synchronously again, the base 102 is pressed synchronously, and the position of the pump body 103 is corrected; the output end of the second motor 30 drives the second screw rod to rotate, the bottom end of the second sliding block 29 extends into the second bottom box 12, the bottom end of the second sliding block 29 is provided with a nut seat, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block 29 moves along the top surface of the second bottom box 12, the transverse movement of the supporting column 7 is realized, the output end of the first motor 27 drives the first screw rod to rotate, the bottom end of the first sliding block 25 extends into the interior of the first bottom box 28, the bottom end of the first sliding block 25 is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block 25 longitudinally moves along the top surface of the first bottom box 28, the longitudinal position adjustment work of the supporting column 7 is realized, after the screwing motor 8 moves right above the fastening bolt 101, the socket wrench at the bottom of the motor 8 is used, tightening the fastening bolt 101 to balance the pump body 103, thereby completing the correction of the rotor inside the centrifugal pump.
The bottom end of the second slider 29 extends into the second bottom box 12, the bottom end of the second slider 29 is provided with a nut seat, the second lead screw passes through the interior of the nut seat and is in threaded connection with the nut seat, the output end of the second motor 30 drives the second lead screw to rotate, and the bottom end of the second slider 29 extends into the second bottom box 12, the bottom end of the second slider 29 is provided with the nut seat, and the second lead screw passes through the interior of the nut seat and is in threaded connection with the nut seat, so that the second slider 29 moves along the top surface of the second bottom box 12, and the transverse movement of the support column 7 is realized.
The bottom end of the first slider 25 extends into the first bottom box 28, the bottom end of the first slider 25 is provided with a nut seat, the first lead screw penetrates through the interior of the nut seat and is in threaded connection with the nut seat, the output end of the first motor 27 drives the first lead screw to rotate, and the bottom end of the first slider 25 extends into the first bottom box 28, the bottom end of the first slider 25 is provided with the nut seat, the first lead screw penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first slider 25 longitudinally moves along the top surface of the first bottom box 28, and the longitudinal position adjustment work of the support column 7 is realized.
The bottom four corners position of every lifter plate 15 is provided with first gag lever post 16 respectively, the top surface that every first gag lever post 16 bottom all passed support frame 3 stretches out the below of support frame 3, first piston rod downstream inside through first pneumatic cylinder 13 control, first gag lever post 16 can restrict lifter plate 15's moving direction, stability when improving lifter plate 15 and moving, make magnetic plate 17 fall into in bolt frame 18, absorb fastening bolt 101 in bolt frame 18, it risees to control commentaries on classics board 5 again, it rotates to change board 5 through the output shaft control of rotating motor 14, inside the through-hole of putting into base 102 fastening bolt 101, realize the material loading work, do not need the manual work to carry out the material loading, alleviate workman's work load.
The top both ends of every diaphragm 21 respectively with the bottom fixed connection of second gag lever post 20, all be provided with the dead lever on the top surface of the support frame 3 of every second gag lever post 20 one side, can play the supporting role to bolt frame 18 through the dead lever, the distance of restriction bolt frame 18 downward displacement simultaneously.
The bottom four corners position of every support frame 3 is provided with the supporting leg respectively, and the middle part position of 3 bottom surfaces of every support frame also is provided with the supporting leg, is provided with gusset plate 26 between the bottom of support column 7 and first under casing 28, improves the stability of structure, improves support frame 3 bearing capacity.
An intermediate frame 10 is arranged on the workbench 2 between the two feeding devices 4, a transverse sliding rail 9 is arranged on the intermediate frame 10, a moving plate 22 is arranged at the top of the transverse sliding rail 9, the moving plate 22 is provided with two base plates 23 side by side, each base plate 23 is provided with a plurality of threaded holes, two handles 24 are arranged on the side wall of one side of the moving plate 22, after the centrifugal pump is placed on the base plates 23, the base plate 100 and the base plates 23 are fixed, the moving plate 22 can be pushed to move on the transverse sliding rail 9 through the handles 24, the position adjustment work of the centrifugal pump is realized, and the correction work is facilitated.
The working principle of the rotor correction device of the invention is as follows: when the centrifugal pump is used, the centrifugal pump is placed on the backing plate 23, the bottom plate 100 and the backing plate 23 are fixed, the moving plate 22 is pushed by the handle 24 to move on the transverse sliding rail 9, the position of the centrifugal pump is adjusted, the backing plate 23 is provided with a plurality of threaded holes, the bottom plate 100 is fixed on the backing plate 23 through bolts, the bottom plates 100 of the centrifugal pumps with different sizes can be fixed conveniently, the fixing and disassembling are convenient, and the correction work is convenient;
the first piston rods in the first hydraulic cylinder 13 are controlled to move downwards, the first limiting rod 16 can limit the moving direction of the lifting plate 15, the stability of the lifting plate 15 in moving is improved, the magnetic plate 17 falls into the bolt frame 18, the fastening bolts 101 in the bolt frame 18 are sucked, the rotating plate 5 is controlled to rise, the rotating plate 5 is controlled to rotate by rotating the output shaft of the motor 14, the fastening bolts 101 are placed in the through holes of the base 102, the feeding work is achieved, manual feeding is not needed, the workload of workers is reduced, the rotating plate 5 is rotated after feeding, the pressure plate 6 is moved to the position above the base 102, the two first piston rods are controlled to move downwards synchronously again, the base 102 is pressed synchronously, and the position of the pump body 103 is corrected;
the output end of the second motor 30 drives the second screw rod to rotate, the bottom end of the second sliding block 29 extends into the second bottom box 12, the bottom end of the second sliding block 29 is provided with a nut seat, the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block 29 moves along the top surface of the second bottom box 12, the transverse movement of the supporting column 7 is realized, the output end of the first motor 27 drives the first screw rod to rotate, the bottom end of the first sliding block 25 extends into the interior of the first bottom box 28, the bottom end of the first sliding block 25 is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block 25 longitudinally moves along the top surface of the first bottom box 28, the longitudinal position adjustment work of the supporting column 7 is realized, after the screwing motor 8 moves right above the fastening bolt 101, the socket wrench at the bottom of the motor 8 is used, tightening the fastening bolt 101 to balance the pump body 103, thereby completing the correction of the rotor inside the centrifugal pump.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The centrifugal pump capable of automatically correcting rotor unbalance comprises a base plate (100), fastening bolts (101), a base (102) and a pump body (103), and is characterized in that the pump body (103) is fixedly arranged on the base (102), the base plate (100) is arranged at the bottom of the base (102), the fastening bolts (101) are respectively arranged at four corners of the base (102), through holes are respectively formed at the four corners of the base (102), threaded holes are respectively formed in the base plate (100) corresponding to the four through holes, and the bottom end of each fastening bolt (101) penetrates through the through hole in the base (102) to be in threaded connection with the threaded hole in the base plate (100).
2. A correction method of a centrifugal pump capable of automatically correcting rotor unbalance is characterized by comprising the following steps:
the method comprises the following steps: after the centrifugal pump is placed on a base plate (23) of a rotor correction device, a base plate (100) and the base plate (23) are fixed, a moving plate (22) is pushed to move on a transverse sliding rail (9) through a handle (24), the adjustment work of the position of the centrifugal pump is achieved, a plurality of threaded holes are formed in the base plate (23), and the base plate (100) is fixed on the base plate (23) through bolts;
step two: the first piston rod in the lifting plate (15) is controlled to move downwards through the first hydraulic cylinder (13), the first limiting rod (16) can limit the moving direction of the lifting plate (15), the moving stability of the lifting plate (15) is improved, the magnetic plate (17) falls into the bolt frame (18), the fastening bolt (101) in the bolt frame (18) is sucked, the rotating plate (5) is controlled to rise, the rotating plate (5) is controlled to rotate through the output shaft of the rotating motor (14), the fastening bolt (101) is placed in the through hole of the base (102), the feeding work is realized, the rotating plate (5) is rotated after feeding, the pressing plate (6) is moved to the upper side of the base (102), the two first piston rods are controlled to move downwards synchronously again, the base (102) is synchronously pressed downwards, and the position of the pump body (103) is corrected;
step three: the output end of a second motor (30) drives a second screw rod to rotate, the bottom end of a second sliding block (29) extends into the second bottom box (12), a nut seat is arranged at the bottom end of the second sliding block (29), the second screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the second sliding block (29) moves along the top surface of the second bottom box (12), the transverse movement of the supporting column (7) is realized, the output end of a first motor (27) drives the first screw rod to rotate, the bottom end of a first sliding block (25) extends into the interior of a first bottom box (28), the bottom end of the first sliding block (25) is provided with the nut seat, the first screw rod penetrates through the interior of the nut seat and is in threaded connection with the nut seat, so that the first sliding block (25) longitudinally moves along the top surface of the first bottom box (28), and the longitudinal position adjustment work of the supporting column (7) is realized, after the screwing motor (8) moves right above the fastening bolt (101), the fastening bolt (101) is screwed through a socket wrench at the bottom of the screwing motor (8), so that the pump body (103) is balanced, and the correction of the centrifugal pump is completed.
3. The method for correcting the centrifugal pump capable of automatically correcting the rotor unbalance as claimed in claim 2, wherein the rotor correcting device comprises a box body (1), a workbench (2) and a support column (7), the workbench (2) is arranged at the top of the box body (1), a second bottom box (12) is fixedly arranged at the middle position of the top surface of the workbench (2), a second motor (30) is fixedly arranged at one end of the second bottom box (12), a second lead screw is arranged inside the second bottom box (12), one end of the second lead screw penetrates through the side wall of the second bottom box (12) and is in transmission connection with the output end of the second motor (30), a second sliding block (29) is arranged at the top of the second bottom box (12), a first bottom box (28) is fixedly arranged at the top of the second sliding block (29), a first lead screw is arranged inside the first bottom box (28), a first motor (27) is fixedly arranged at one end of the first bottom box (28), one end of the first screw rod penetrates through the side wall of the first bottom box (28) to be in transmission connection with the output end of the first motor (27), a first sliding block (25) is arranged at the top of the first bottom box (28), a supporting column (7) is fixedly arranged at the top of the first sliding block (25), a screwing motor (8) is fixedly connected to the top of the supporting column (7), and a socket wrench is arranged at the bottom of the screwing motor (8);
the automatic feeding device is characterized in that feeding devices (4) are symmetrically arranged on the workbench (2) on two sides of the second bottom box (12), each feeding device (4) comprises a support frame (3) and a rotating plate (5), a first hydraulic cylinder (13) is fixedly arranged in the middle of the top surface of the support frame (3), a lifting plate (15) is fixedly arranged at the top end of a first piston rod in the first hydraulic cylinder (13), a rotating motor (14) is arranged at the top of the lifting plate (15), an output shaft of the rotating motor (14) is fixedly connected with the rotating plate (5), a magnetic force plate (17) is arranged at the bottom of one end of the rotating plate (5), a pressing plate (6) is arranged at the bottom of the other end of the rotating plate (5), second hydraulic cylinders (19) are fixedly arranged on the bottom surfaces of the support frames (3) on two sides of the first hydraulic cylinder (13), and the top ends of second piston rods in the second hydraulic cylinders (19) penetrate through the top, and the top end of the second piston rod is fixedly provided with a bolt frame (18), the second piston rod extending out of the upper part of the support frame (3) is fixedly connected with the bolt frame (18), the two ends of the bottom of the bolt frame (18) are respectively provided with a second limiting rod (20), the bottom ends of the two second limiting rods (20) respectively penetrate through the top surface of the support frame (3), and a transverse plate (21) is arranged between the two second limiting rods (20) extending out of the lower part of the top surface of the support frame (3).
4. A method for rectifying centrifugal pump with automatic rotor unbalance according to claim 3, characterized in that the bottom end of the second slide block (29) is extended into the inside of the second bottom case (12), and the bottom end of the second slide block (29) is provided with a nut seat, and the second lead screw passes through the inside of the nut seat and is connected with the nut seat through screw thread.
5. A method for rectifying centrifugal pump with automatic rotor unbalance according to claim 3, characterized in that the bottom end of the first sliding block (25) is extended into the interior of the first bottom case (28), and the bottom end of the first sliding block (25) is provided with a nut seat, and the first lead screw passes through the interior of the nut seat and is connected with the nut seat through screw thread.
6. A method for correcting a centrifugal pump capable of automatically correcting rotor imbalance according to claim 3, wherein four corners of the bottom of each lifting plate (15) are respectively provided with a first limiting rod (16), and the bottom end of each first limiting rod (16) passes through the top surface of the support frame (3) and extends out of the support frame (3) to the lower part.
7. A method for correcting centrifugal pump with automatic rotor unbalance as claimed in claim 3, wherein the top ends of each horizontal plate (21) are fixedly connected to the bottom ends of the second limiting rods (20), and the top surface of the supporting frame (3) at one side of each second limiting rod (20) is provided with a fixing rod.
8. A method of automatically correcting rotor imbalance in a centrifugal pump according to claim 3, wherein each support frame (3) has support legs at four corners of the bottom, each support frame (3) has support legs at the middle of the bottom, and a reinforcing plate (26) is provided between the bottom of the support column (7) and the first bottom case (28).
9. A method for correcting a centrifugal pump capable of automatically correcting rotor imbalance according to claim 3, wherein an intermediate frame (10) is arranged on the workbench (2) between the two feeding devices (4), a transverse slide rail (9) is arranged on the intermediate frame (10), a moving plate (22) is arranged on the top of the transverse slide rail (9), two base plates (23) are arranged side by side on the moving plate (22), each base plate (23) is provided with a plurality of threaded holes, and two handles (24) are arranged on the side wall of one side of the moving plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026018.0A CN112217362B (en) | 2020-09-25 | 2020-09-25 | Centrifugal pump capable of automatically correcting unbalance of rotor and correction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011026018.0A CN112217362B (en) | 2020-09-25 | 2020-09-25 | Centrifugal pump capable of automatically correcting unbalance of rotor and correction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112217362A true CN112217362A (en) | 2021-01-12 |
| CN112217362B CN112217362B (en) | 2023-04-21 |
Family
ID=74051112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011026018.0A Active CN112217362B (en) | 2020-09-25 | 2020-09-25 | Centrifugal pump capable of automatically correcting unbalance of rotor and correction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112217362B (en) |
Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4485678A (en) * | 1982-09-27 | 1984-12-04 | Mechanical Technology Incorporated | Rotor diagnostic and balancing system |
| JPH06123668A (en) * | 1992-10-09 | 1994-05-06 | Shimadzu Corp | Dynamic balance tester |
| JPH08163841A (en) * | 1994-11-30 | 1996-06-21 | Toshiba Corp | Eccentricity measuring apparatus and eccentricity correction apparatus for rotor |
| JPH09170530A (en) * | 1995-12-19 | 1997-06-30 | Denso Corp | Unbalance correction method for rotor |
| JPH09318896A (en) * | 1996-05-28 | 1997-12-12 | Asahi Optical Co Ltd | Dynamic balance adjustment device |
| JPH1066312A (en) * | 1996-06-14 | 1998-03-06 | Fuji Electric Co Ltd | Assembling device for permanent magnet synchronous motor |
| EP0843162A2 (en) * | 1996-11-13 | 1998-05-20 | JOHNSON & JOHNSON CLINICAL DIAGNOSTICS, INC. | Determining liquid volumes in cup-like vessels on a rotor having vertical deviations |
| JPH11146611A (en) * | 1997-11-10 | 1999-05-28 | Hitachi Ltd | Balance correction for motor fan |
| JPH11351998A (en) * | 1998-06-11 | 1999-12-24 | Makita Corp | Method and system for correcting balance of rotor of motor |
| US20020044846A1 (en) * | 2000-05-26 | 2002-04-18 | Balance Systems S.P.A. | Process and apparatus for balancing rotating bodies, in particular rotors of electric motors |
| US20040243283A1 (en) * | 2001-09-17 | 2004-12-02 | William Montanari | Method and apparatus for the dynamic balancing of a rotating structure |
| JP2006214884A (en) * | 2005-02-03 | 2006-08-17 | Denso Corp | Device and method for correcting balance |
| US20090183556A1 (en) * | 2006-01-10 | 2009-07-23 | Ihi Corporation | Method and apparatus for balancing an electrically assisted turbocharger rotor |
| US20120206024A1 (en) * | 2011-02-15 | 2012-08-16 | Kabushiki Kaisha Yaskawa Denki | Servo motor manufacturing method, servo motor manufacturing apparatus, servo motor, and encoder |
| DE102012105893A1 (en) * | 2012-07-03 | 2014-01-09 | Schenck Rotec Gmbh | Method and device for unbalance compensation of rotors by welding balancing weights |
| CN204290658U (en) * | 2014-11-26 | 2015-04-22 | 深圳市大疆创新科技有限公司 | Balancing device and use the dynamic balance calibration equipment of this balancing device |
| WO2015120093A1 (en) * | 2014-02-07 | 2015-08-13 | Nidec Motor Corporation | Internal rotor sensor having adjustable sensor carrier |
| CN104972472A (en) * | 2015-07-10 | 2015-10-14 | 杭州集智机电股份有限公司 | Mechanical arm structure for full-automatic motor rotor balance correcting device |
| CN205254255U (en) * | 2015-12-17 | 2016-05-25 | 东莞市麒丰机械有限公司 | Fender bits structure of balanced machine |
| CN106483310A (en) * | 2012-04-30 | 2017-03-08 | 生命技术公司 | Module and calibration steps for robot polynucleotides sample preparation system |
| CN106533094A (en) * | 2015-09-11 | 2017-03-22 | 青岛三利智能动力有限公司 | Method for balancing motor rotor |
| JP2017201857A (en) * | 2016-05-06 | 2017-11-09 | 本田技研工業株式会社 | Method of correcting balance of rotor of rotary electric machine |
| US20190041289A1 (en) * | 2017-08-04 | 2019-02-07 | Schenck Rotec Gmbh | Drive apparatus for a balancing machine and a balancing machine |
| CN109525086A (en) * | 2019-01-08 | 2019-03-26 | 深圳至汉装备科技有限公司 | A kind of semi-automatic dynamic balance adjusting apparatus of single-station |
| CN110132192A (en) * | 2019-05-16 | 2019-08-16 | 北京中航科电测控技术股份有限公司 | A kind of robot automation's detection device |
| CN210413959U (en) * | 2019-06-03 | 2020-04-28 | 江苏湖润泵业科技有限公司 | Grinding, positioning and correcting device for oil pump rotor blade groove |
| CN210469078U (en) * | 2019-11-04 | 2020-05-05 | 常州克普斯莱机电有限公司 | Motor rotor subtracts balanced machine |
| CN211174813U (en) * | 2019-12-27 | 2020-08-04 | 大连力动流体设备制造有限公司 | Centrifugal pump |
| US20200248696A1 (en) * | 2019-02-01 | 2020-08-06 | White Knight Fluid Handling Inc. | Pump having magnets for journaling and magnetically axially positioning rotor thereof, and related methods |
| CN211205638U (en) * | 2019-12-27 | 2020-08-07 | 无锡超通智能制造技术研究院有限公司 | Ultra-precise laser automatic de-weighting dynamic balancing machine of micro turbojet engine rotor |
-
2020
- 2020-09-25 CN CN202011026018.0A patent/CN112217362B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4485678A (en) * | 1982-09-27 | 1984-12-04 | Mechanical Technology Incorporated | Rotor diagnostic and balancing system |
| JPH06123668A (en) * | 1992-10-09 | 1994-05-06 | Shimadzu Corp | Dynamic balance tester |
| JPH08163841A (en) * | 1994-11-30 | 1996-06-21 | Toshiba Corp | Eccentricity measuring apparatus and eccentricity correction apparatus for rotor |
| JPH09170530A (en) * | 1995-12-19 | 1997-06-30 | Denso Corp | Unbalance correction method for rotor |
| JPH09318896A (en) * | 1996-05-28 | 1997-12-12 | Asahi Optical Co Ltd | Dynamic balance adjustment device |
| JPH1066312A (en) * | 1996-06-14 | 1998-03-06 | Fuji Electric Co Ltd | Assembling device for permanent magnet synchronous motor |
| EP0843162A2 (en) * | 1996-11-13 | 1998-05-20 | JOHNSON & JOHNSON CLINICAL DIAGNOSTICS, INC. | Determining liquid volumes in cup-like vessels on a rotor having vertical deviations |
| JPH11146611A (en) * | 1997-11-10 | 1999-05-28 | Hitachi Ltd | Balance correction for motor fan |
| JPH11351998A (en) * | 1998-06-11 | 1999-12-24 | Makita Corp | Method and system for correcting balance of rotor of motor |
| US20020044846A1 (en) * | 2000-05-26 | 2002-04-18 | Balance Systems S.P.A. | Process and apparatus for balancing rotating bodies, in particular rotors of electric motors |
| US20040243283A1 (en) * | 2001-09-17 | 2004-12-02 | William Montanari | Method and apparatus for the dynamic balancing of a rotating structure |
| JP2006214884A (en) * | 2005-02-03 | 2006-08-17 | Denso Corp | Device and method for correcting balance |
| US20090183556A1 (en) * | 2006-01-10 | 2009-07-23 | Ihi Corporation | Method and apparatus for balancing an electrically assisted turbocharger rotor |
| US20120206024A1 (en) * | 2011-02-15 | 2012-08-16 | Kabushiki Kaisha Yaskawa Denki | Servo motor manufacturing method, servo motor manufacturing apparatus, servo motor, and encoder |
| CN106483310A (en) * | 2012-04-30 | 2017-03-08 | 生命技术公司 | Module and calibration steps for robot polynucleotides sample preparation system |
| DE102012105893A1 (en) * | 2012-07-03 | 2014-01-09 | Schenck Rotec Gmbh | Method and device for unbalance compensation of rotors by welding balancing weights |
| WO2015120093A1 (en) * | 2014-02-07 | 2015-08-13 | Nidec Motor Corporation | Internal rotor sensor having adjustable sensor carrier |
| CN204290658U (en) * | 2014-11-26 | 2015-04-22 | 深圳市大疆创新科技有限公司 | Balancing device and use the dynamic balance calibration equipment of this balancing device |
| CN104972472A (en) * | 2015-07-10 | 2015-10-14 | 杭州集智机电股份有限公司 | Mechanical arm structure for full-automatic motor rotor balance correcting device |
| CN106533094A (en) * | 2015-09-11 | 2017-03-22 | 青岛三利智能动力有限公司 | Method for balancing motor rotor |
| CN205254255U (en) * | 2015-12-17 | 2016-05-25 | 东莞市麒丰机械有限公司 | Fender bits structure of balanced machine |
| JP2017201857A (en) * | 2016-05-06 | 2017-11-09 | 本田技研工業株式会社 | Method of correcting balance of rotor of rotary electric machine |
| US20190041289A1 (en) * | 2017-08-04 | 2019-02-07 | Schenck Rotec Gmbh | Drive apparatus for a balancing machine and a balancing machine |
| CN109525086A (en) * | 2019-01-08 | 2019-03-26 | 深圳至汉装备科技有限公司 | A kind of semi-automatic dynamic balance adjusting apparatus of single-station |
| US20200248696A1 (en) * | 2019-02-01 | 2020-08-06 | White Knight Fluid Handling Inc. | Pump having magnets for journaling and magnetically axially positioning rotor thereof, and related methods |
| CN110132192A (en) * | 2019-05-16 | 2019-08-16 | 北京中航科电测控技术股份有限公司 | A kind of robot automation's detection device |
| CN210413959U (en) * | 2019-06-03 | 2020-04-28 | 江苏湖润泵业科技有限公司 | Grinding, positioning and correcting device for oil pump rotor blade groove |
| CN210469078U (en) * | 2019-11-04 | 2020-05-05 | 常州克普斯莱机电有限公司 | Motor rotor subtracts balanced machine |
| CN211174813U (en) * | 2019-12-27 | 2020-08-04 | 大连力动流体设备制造有限公司 | Centrifugal pump |
| CN211205638U (en) * | 2019-12-27 | 2020-08-07 | 无锡超通智能制造技术研究院有限公司 | Ultra-precise laser automatic de-weighting dynamic balancing machine of micro turbojet engine rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112217362B (en) | 2023-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111733790B (en) | A ramming device for construction | |
| CN111693385A (en) | Adjustable concrete impact resistance test device | |
| CN206428955U (en) | A kind of decoration construction platform | |
| CN208375612U (en) | A kind of adjustable drill hole on wall machine of interior decoration height | |
| CN112217362A (en) | Centrifugal pump capable of automatically correcting rotor unbalance and correction method thereof | |
| CN213275228U (en) | Computer hardware hardness detection device capable of detecting different directions | |
| CN112942893B (en) | Fixing device and fixing method for steel structure construction | |
| CN209179544U (en) | Building leveling support frame | |
| CN113340726A (en) | Static rigidity test detection device for rubber bushing | |
| CN209665624U (en) | A kind of carpenter machinery working bench | |
| CN112195789A (en) | Quick fixing device of guardrail stand | |
| CN219573432U (en) | Skylight vibration testing device | |
| CN206530081U (en) | A kind of novel building engineering support meanss | |
| CN216196856U (en) | Reinforcing support frame for integral translation of building | |
| CN219320447U (en) | New energy automobile motor test rack | |
| CN220550894U (en) | Building wall body strutting arrangement | |
| CN204405314U (en) | A kind of Automatic Control chair back crushing resistance and fatigability proving installation | |
| CN214998510U (en) | Energy-saving pneumatic hydraulic supercharging device | |
| CN218330576U (en) | Pressure testing machine | |
| CN216553164U (en) | Strutting arrangement is used in concrete replacement | |
| CN220245375U (en) | Structure is demolishd to small-size tower crane auxiliary roofing of interior climbing tower crane | |
| CN219084366U (en) | Gear production detection device | |
| CN220395147U (en) | Quick rotary tool for tray buckle bottom support and top support | |
| CN215727418U (en) | Drop hammer impact instrument with auxiliary positioning function | |
| CN212691391U (en) | Electromechanical device damping device |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230323 Address after: 150000 Xinxing team 2, Wuxing village, Minzhu Township, Daowai District, Harbin City, Heilongjiang Province Applicant after: HARBIN NORTHEAST PUMP CO.,LTD. Address before: 430000 1203, Guanggu creative building, 20 Guanshan Avenue, Hongshan District, Wuhan City, Hubei Province Applicant before: Li Hong |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |