CN210741751U

CN210741751U - Rotor dynamic balance testing device

Info

Publication number: CN210741751U
Application number: CN201921989050.1U
Authority: CN
Inventors: 姚超; 陶峰; 谭海军; 俞晨凯
Original assignee: Jiangsu Jiuzhi Electric Co Ltd
Current assignee: Jiangsu Jiuzhi Electric Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-06-12
Anticipated expiration: 2029-11-18

Abstract

The utility model provides a rotor dynamic balance testing arrangement, relate to the motor test equipment field, the on-line screen storage device comprises a base, two sets of bilateral symmetry's supporting component, actuating mechanism and induction mechanism, wherein, actuating mechanism includes riser, motor, tensioning assembly and belt, the rotor is established to belt upper portion cover, the belt lower part overlaps in proper order and is established on tensioning assembly and motor, the belt constitutes confined annular, tensioning assembly is used for tensioning the belt to the settlement pressure, thereby guarantee that the belt compresses tightly in the rotor outside with the settlement pressure, and the motor passes through the belt and drives the stable rotation of rotor, make every group rotor in the test process, the belt is close with the frictional force of every group rotor, and then guarantee the precision of rotor test; when different rotors are tested, the pressure of the belt acting on the rotors can be effectively adjusted by adjusting the counterweight parts.

Description

Rotor dynamic balance testing device

Technical Field

The utility model relates to a motor test equipment field especially relates to a rotor dynamic balance testing arrangement.

Background

The rotor is an important component of the motor, and vibration caused by unbalance of the rotor often causes motor vibration, noise and mechanism damage.

Due to the factors of uneven materials or blank defects, errors generated in processing and assembly, asymmetric geometric shapes in design and the like, when the revolving body rotates, centrifugal inertia force generated by each tiny mass point on the revolving body cannot be mutually counteracted, the centrifugal inertia force acts on machinery and other mechanisms through a bearing to cause vibration, noise is generated, bearing abrasion is accelerated, the service life of the machinery is shortened, and destructive accidents can be caused seriously.

The patent with the patent publication number of CN205808623U and the patent name of a dynamic balance testing device discloses a dynamic balance testing device, which comprises a test bed, a left supporting mechanism and a right supporting mechanism, wherein a middle power disc is arranged between the left supporting mechanism and the right supporting mechanism, and the left supporting mechanism and the right supporting mechanism have the same structure; the left support mechanism comprises a left base, a left lower support body and a left upper support rod, the left lower support body and the left upper support rod are arranged on the left base, a left lower support wheel is arranged on the left lower support body, and a left upper support wheel is arranged on the left upper support rod; the middle power disc is provided with a motor and a belt pulley mechanism; the left support mechanism is provided with a left piezoelectric sensing device, the right support mechanism is provided with a right piezoelectric sensing device, fixing points of the left support mechanism, the right support mechanism and the middle power disc can be adjusted along the groove to adapt to dynamic balance tests of shaft rotors with different lengths, the support wheels can be adjusted up and down to adapt to dynamic balance tests of shaft rotors with different shaft diameters, and the universality is high.

When current test motor rotor dynamic balance, the rotation of rotor relies on the frictional force in belt and the rotor outside completely, therefore the staff need be according to the type and the specification of rotor, change the belt with rotor looks adaptation to prevent to cause great test error because of rotor frictional force undersize or too big, but in actual test, the belt is through using for a long time, and difficult the certain tensile volume of production, and the belt after the tensile will further increase test error in the test of other rotors.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough that exists among the prior art, provide a rotor dynamic balance testing arrangement, the device can set for the pressure that the belt was used in the rotor outside according to the demand, and then improves the measuring accuracy.

The utility model discloses a realize through following technical scheme: the utility model provides a rotor dynamic balance testing arrangement, the on-line screen storage device comprises a base, the supporting component of two sets of bilateral symmetry, actuating mechanism and induction mechanism, supporting component lower part and base sliding connection, actuating mechanism is located two sets of supporting component's middle part, supporting wheel and pinch roller are installed on supporting component upper portion, supporting wheel and pinch roller cooperate the tip of tight center pin of clamp, actuating mechanism includes the riser, including a motor, an end cap, a controller, and a cover plate, tensioning assembly and belt, riser lower extreme and base sliding connection, the motor and tensioning assembly are walked around in proper order to the belt, tensioning assembly is used for tensioning belt to settlement pressure, the motor drives the rotor through the belt and rotates, induction mechanism is.

The utility model discloses a two sets of supporting components are used for pressing from both sides the tip of tight center pin, actuating mechanism includes the riser, including a motor, an end cap, a controller, and a cover, the rotor is established to belt upper portion cover, the belt lower part is established in proper order and is established on tensioning component and motor, the belt constitutes confined annular, the tensioning component is used for tensioning belt to settlement pressure, thereby guarantee that the belt compresses tightly in the rotor outside with settlement pressure, and the motor passes through the belt and drives the stable rotation of rotor, make every group rotor in the test procedure, the belt is close with the frictional force of every group rotor, and then guarantee the precision of rotor test.

According to the technical scheme, preferably, the tensioning assembly comprises a counterweight part, a first guide wheel rotatably connected with the lower end of the counterweight part, a hydraulic oil cylinder and a second guide wheel rotatably connected with the free end of the hydraulic oil cylinder, a vertical pipe is fixed on a vertical plate, the counterweight part comprises a sliding column and a plurality of groups of counterweight blocks, the sliding column is slidably connected with the inner wall of the vertical pipe, an inserted rod and a stop block for placing the counterweight blocks are arranged at the upper part of the sliding column, a through hole matched with the inserted rod is formed in the middle of the counterweight block, a touch switch electrically connected with the hydraulic oil cylinder is arranged on the vertical plate above the inserted rod, the counterweight part downwards compresses the belt through the first guide wheel, the hydraulic oil cylinder pushes the second guide wheel to press the belt upwards, the belt pushes the counterweight part to move upwards along with the upward movement of the second guide wheel pushed by the hydraulic oil cylinder, the upper end of the counterweight part abuts against the touch switch, and the hydraulic oil cylinder stops pushing upwards, so that the belt clamps the rotor at a set pressure; and along with different rotor types, different groups of counterweight parts can be inserted into the insertion rod according to requirements.

According to the technical scheme, preferably, the vertical plate is provided with a plurality of groups of driven guide wheels.

According to the technical scheme, preferably, a plurality of groups of parallel horizontal sliding rails are arranged on the base, a plurality of groups of sliding blocks connected with the horizontal sliding rails in a sliding manner are arranged at the lower part of the supporting assembly, a limiting hole is formed in the base, a plurality of groups of through holes matched with the limiting hole are arranged at the lower part of the supporting assembly, a positioning pin matched with the limiting hole is arranged in the through hole, and the pulley is matched with the horizontal sliding rails, so that a worker can move the supporting assembly conveniently; after the supporting component is moved in place, the supporting component can be quickly locked on the base through the matching of the positioning pin and the limiting hole.

The utility model has the advantages that: the utility model discloses a two sets of supporting components are used for pressing from both sides the tip of tight center pin, actuating mechanism includes the riser, including a motor, an end cap, a controller, and a cover, the rotor is established to belt upper portion cover, the belt lower part is established in proper order and is established on tensioning component and motor, the belt constitutes confined annular, the tensioning component is used for tensioning belt to settlement pressure, thereby guarantee that the belt compresses tightly in the rotor outside with settlement pressure, and the motor passes through the belt and drives the stable rotation of rotor, make every group rotor in the test procedure, the belt is close with the frictional force of every group rotor, and then guarantee the precision of rotor test.

Drawings

Fig. 1 shows a schematic front view structure according to an embodiment of the present invention.

Fig. 2 shows a schematic cross-sectional structure of a-a in fig. 1.

In the figure: 1. a base; 2. a support assembly; 3. a vertical plate; 4. a motor; 5. a tension assembly; 6. a belt; 7. a rotor; 8. a first guide wheel; 9. a hydraulic cylinder; 10. a second guide wheel; 11. a vertical conduit; 12. positioning pins; 13. a traveler; 14. a balancing weight; 15. inserting a rod; 16. a stopper; 17. a touch switch; 18. a driven guide wheel.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the drawing, the utility model provides a rotor dynamic balance testing arrangement, the on-line screen storage device comprises a base 1, two sets of bilateral symmetry's supporting component 2, actuating mechanism and response mechanism, supporting component 2 lower part and base 1 sliding connection, actuating mechanism is located the middle part of two sets of supporting component 2, supporting wheel and pinch roller are installed on supporting component 2 upper portion, supporting wheel and pinch roller cooperate the tip of pressing from both sides tight center pin, actuating mechanism includes riser 3, motor 4, tensioning component 5 and belt 6, motor 4 and riser 3 fixed connection, riser 3 lower extreme and base 1 sliding connection, motor 4 and tensioning component 5 are walked around in proper order to belt 6, motor 4 drives rotor 7 through belt 6 and rotates, tensioning component 5 is used for tensioning belt 6 to settlement pressure, tensioning component 5 includes counter weight portion, rotate the first leading wheel 8 of being connected with counter weight portion lower extreme, a hydraulic oil cylinder 9 and a second guide wheel 10 which is rotationally connected with the free end of the hydraulic oil cylinder 9, a vertical conduit 11 is fixedly connected on the vertical plate 3, a counterweight part comprises a sliding column 13 which is connected with the inner wall of the vertical conduit in a sliding way and a plurality of groups of counterweight blocks 14, the upper part of the sliding column 13 is provided with an inserted bar 15 and a stop block 16 for placing the counterweight blocks 14, the middle part of the counterweight blocks 14 is provided with a through hole which is matched with the inserted bar 15, a touch switch 17 which is electrically connected with the hydraulic oil cylinder 9 is arranged above the inserted bar 15 on the vertical plate 3, the counterweight part presses the belt 6 downwards through, the hydraulic oil cylinder 9 pushes the second guide wheel 10 to press the belt 6 upwards, the belt 6 pushes the counterweight part to move upwards along with the upward movement of the second guide wheel 10 pushed by the hydraulic oil cylinder 9, the upper end of the counterweight part abuts against the touch switch 17, and the hydraulic oil cylinder 9 stops pushing upwards, so that the belt 6 clamps the rotor 7 at a set pressure; and with the different rotor 7 types, can put into the counter weight portion of different group numbers on inserted link 15 according to the demand, the induction mechanism is used for responding to the vibration of rotor 7, and the induction mechanism can adopt the piezoelectricity sensing device in the background art.

The working process is as follows: before the rotor 7 is hoisted to the testing device, a central shaft is inserted into the center of the rotor 7 in advance and locked in the rotor 7 through an adaptive key, so that the rotor 7 and the central shaft rotate synchronously; adjusting the distance between the two groups of supporting components 2 according to the length of the rotor 7 and the central shaft, and locking the supporting components 2 on the base 1; the rotor 7 and the central shaft are integrally placed on the testing device, the belt 6 is sleeved on the rotor 7, the belt 6 pushes the first guide wheel 8 and the counterweight part to integrally move upwards along with the fact that the hydraulic oil cylinder 9 slowly pushes the second guide wheel 10 to move upwards, until the upper end of the counterweight part abuts against the touch switch 17, the hydraulic oil cylinder 9 stops pushing upwards, and therefore the belt 6 is clamped on the rotor 7 at the set pressure.

Further, be equipped with multiunit driven leading wheel 18 on the riser 3, driven leading wheel 18 can be according to the trend of demand adjustment belt 6, is convenient for test the rotor 7 of different specifications.

Furthermore, a plurality of groups of parallel horizontal sliding rails are arranged on the base 1, a plurality of groups of sliding blocks which are connected with the horizontal sliding rails in a sliding manner are arranged at the lower part of the supporting component 2, a limiting hole is arranged on the base 1, a plurality of groups of through holes which are matched with the limiting hole are arranged at the lower part of the supporting component 2, a positioning pin 12 which is matched with the limiting hole is arranged in the through hole, and the pulley is matched with the horizontal sliding rails, so that a worker can move the; after the supporting component 2 is moved to the right position, the supporting component 2 can be quickly locked on the base 1 through the matching of the positioning pin 12 and the limiting hole.

The utility model has the advantages that: the utility model discloses a two sets of supporting component 2 are used for pressing from both sides the tip of tight center pin, actuating mechanism includes riser 3, motor 4, tensioning assembly 5 and belt 6, rotor 7 upper portion region is established to belt 6 upper portion cover, 6 lower parts of belt overlap in proper order and establish on tensioning assembly 5 and motor 4, belt 6 constitutes confined annular, tensioning assembly 5 is used for tensioning belt 6 to settlement pressure, thereby guarantee that belt 6 compresses tightly in the rotor 7 outside with settlement pressure, and motor 4 passes through belt 6 and drives rotor 7 and stabilize the rotation, make every group rotor 7 in the test process, belt 6 is close with the frictional force of every group rotor 7, and then guarantee the precision of rotor 7 test.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a rotor dynamic balance testing arrangement, its characterized in that, supporting component, actuating mechanism and response mechanism including base, two sets of bilateral symmetry, supporting component lower part and base sliding connection, actuating mechanism is located two sets of supporting component's middle part, supporting wheel and pinch roller are installed on supporting component upper portion, the tip of tight center pin is pressed from both sides in supporting wheel and pinch roller cooperation, actuating mechanism includes riser, motor, tensioning assembly and belt, riser lower extreme and base sliding connection, motor and tensioning assembly have been walked around in proper order to the belt, tensioning assembly is used for tensioning belt to setting pressure, the motor drives the rotor through the belt and rotates, response mechanism is used for the vibration of induction rotor.

2. The rotor dynamic balance testing device of claim 1, wherein the tensioning assembly comprises a counterweight portion, a first guide wheel rotatably connected with the lower end of the counterweight portion, a hydraulic cylinder and a second guide wheel rotatably connected with the free end of the hydraulic cylinder, a vertical guide pipe is arranged on the vertical plate, the counterweight portion comprises a sliding column and a plurality of groups of balancing weights, the sliding column is slidably connected with the inner wall of the vertical guide pipe, an insertion rod for placing the balancing weights is arranged at the upper part of the sliding column, a through hole matched with the insertion rod is formed in the middle of the balancing weights, and a touch switch electrically connected with the hydraulic cylinder is arranged on the vertical plate above the insertion rod.

3. The dynamic rotor balance testing device of claim 2, wherein a plurality of sets of driven guide wheels are arranged on the vertical plate.

4. The rotor dynamic balance testing device of claim 3, wherein a plurality of groups of parallel horizontal sliding rails are arranged on the base, a plurality of groups of sliding blocks connected with the horizontal sliding rails in a sliding manner are arranged at the lower part of the supporting component, a limiting hole is arranged on the base, a plurality of groups of through holes matched with the limiting hole are arranged at the lower part of the supporting component, and a positioning pin matched with the limiting hole is arranged in the through hole.