CN211527712U

CN211527712U - Vertical type weight-removing dynamic balance equipment for rotor disc of disc type motor

Info

Publication number: CN211527712U
Application number: CN202020203300.0U
Authority: CN
Inventors: 徐鹏; 张国强; 陈栋; 李国瑶
Original assignee: Hangzhou Zhonghao Electric Technology Co ltd
Current assignee: Hangzhou Zhonghao Electric Technology Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-09-18
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a vertical weight-removing dynamic balance device for a rotor disc of a disc type motor, which comprises a dynamic balancer body, wherein the upper side of the dynamic balancer body is provided with a rotatable rotating table, the axis of the rotating table is vertically arranged, a rotor clamp for clamping the rotor disc to be tested is arranged on the rotating table, the rotor clamp is provided with an indexing disc, and the rotating table is also provided with a clamping device for removing the rotor disc; and a weight removing device capable of moving relative to the rotating table is arranged above the dynamic balancing machine body. The utility model has the advantages that the vertical dynamic balance measurement of the rotor disc is realized, the rotor disc is convenient to install and detect, and is uniformly influenced by the axial suction force of the rotor disc magnetic steel, the influence of the axial suction force of the magnetic steel on the dynamic balance measurement of the rotor disc is eliminated, and compared with the traditional horizontal rotor dynamic balance measuring machine, the scheme has the advantages of stable performance and high precision; through the weight removal device, the weight removal of the rotor disc can be realized, and the dynamic balance precision of the rotor disc is enabled to be used.

Description

Vertical type weight-removing dynamic balance equipment for rotor disc of disc type motor

Technical Field

The utility model belongs to the technical field of the disk motor rotor dish, specifically a vertical heavy dynamic balance equipment that goes of disk motor rotor dish.

Background

For the reason that the disc type motor rotor causes unbalance on the rotor machinery due to manufacturing, processing, assembly error and the like, unbalanced centrifugal force or centrifugal couple is generated due to the eccentric inertia during rotation, and the motor vibrates under the action of the centrifugal force. The vibration has great damage to the motor, consumes energy, reduces the power of the motor, damages a bearing, accelerates the abrasion, reduces the service life and the like; the appearance of the disc rotor disc is special, the outer diameter is large, the axial size is small, and the operation requirements of the common horizontal dynamic balance method cannot be well met.

For example, chinese patent document CN 208921350U discloses "a rotor dynamic balance test device" in 2019, 5 and 31, the device includes a dc motor, a speed regulator, and a bottom plate, the bottom plate is sequentially provided with a first bearing support, a second bearing support, and a motor fixing support from left to right, the dc motor is fixed on the motor fixing support, a rotating shaft of the dc motor is connected to a rotating shaft, the rotating shaft is erected between the first bearing support and the second bearing support, the rotating shaft is provided with an original rotor and a rotor to be tested, the first bearing support is fixedly provided with a first vibration sensor, the second bearing support is fixedly provided with a second vibration sensor, the rotor to be tested is attached with a reflective tape, a support is provided beside the bottom plate, the support is provided with a photoelectric sensor, the photoelectric sensor is positioned above the rotor to be measured. The testing device has the defects that the outer diameter of the outer shape of the rotor disc of the disc type motor is large, the axial size is small, and the testing device cannot meet the operation requirement; meanwhile, the magnetic steel on the rotor disc of the disc type motor has strong axial suction force, so that danger is easily caused during dynamic balance, and the safety problem is caused.

Disclosure of Invention

Based on the above problems, the utility model provides a vertical type weight-removing dynamic balance device of a disk type motor rotor disk, which can complete the vertical type dynamic balance of the disk type motor rotor, is convenient for the installation and detection of the rotor disk, has the characteristics of stable performance and high precision,

in order to realize the purpose of the invention, the utility model adopts the following technical scheme:

a vertical de-weighting dynamic balancing device for a rotor disc of a disc type motor is characterized by comprising a dynamic balancing machine body, wherein a rotatable rotating table is arranged on the upper side of the dynamic balancing machine body, the axis of the rotating table is vertically arranged, a rotor clamp for clamping the rotor disc to be tested is arranged on the rotating table, the rotor clamp is provided with an index plate, and a clamping device for de-weighting the rotor disc is also arranged on the rotating table; and a weight removing device capable of moving relative to the rotating table is arranged above the dynamic balancing machine body.

The rotor disc is clamped by the rotating table and the rotor clamp, the rotor disc can be driven to rotate by the rotation of the rotating table, the vertical dynamic balance measurement of the rotor disc is realized, the rotor disc is convenient to install and detect, the influence of the axial attraction of the magnetic steel of the rotor disc on the dynamic balance measurement of the rotor disc is uniform, the influence of the axial attraction of the magnetic steel on the rotor disc is eliminated, and compared with the traditional horizontal rotor dynamic balance measuring machine, the scheme has the advantages of stable performance and high precision; through the weight removal device, the weight removal of the rotor disc can be realized, and the dynamic balance precision of the rotor disc is enabled to be used.

Preferably, the plane of movement of the counterweight device passes through the plane of the axis of the rotating table. The rotor disc is convenient to be subjected to de-duplication treatment by the de-duplication device.

Preferably, the clamping device comprises a clamping oil cylinder vertically fixed on the rotating platform, and a piston rod of the clamping oil cylinder is provided with a rotatable pressing block. The lifting of the pressing block can be realized through the clamping oil cylinder, and the rapid clamping of the rotor disc can be realized through the matching of the pressing block and the clamping oil cylinder, so that the weight removal of the rotor disc is completed; the rotatable setting of briquetting can prevent that the briquetting from producing the installation of rotor disc and disturbing, makes things convenient for the installation of rotor disc, also makes things convenient for the rotation of rotor disc when dynamic balance measures.

Preferably, the outer end of the pressing block is provided with a pressing bolt with adjustable height. Make things convenient for the briquetting to play, when having a plurality of clamping device, can realize that all briquettings compress tightly the rotor dish simultaneously through housing bolt, make things convenient for the rotor dish to remove the weight.

Preferably, two sets of clamping devices are arranged on the rotating platform, and the two sets of clamping devices are symmetrically arranged on two sides of the rotating platform. The clamping action is symmetrical and reliable, and the rotor disc is convenient to clamp.

Preferably, the weight removing device comprises a rotatable milling cutter which is vertically arranged, and a protective cover is arranged outside the milling cutter; the milling cutter is equipped with a vertical lifting mechanism and a left-right translation mechanism capable of moving forward and backward towards the rotating table. The chips when the weight is removed by milling are prevented from flying in a mess through the protective cover, and the operation safety is improved.

Preferably, the rotary table is equipped with a rotary hand wheel. The rotating table can be rotated by rotating the hand wheel, so that the fine adjustment of the angle of the rotating table can be completed, and the rotor disc is convenient to remove the weight.

Preferably, the rotor fixture comprises a base fixed on the dynamic balancing machine body, collets capable of sliding up and down are arranged in the base, the upper ends of the collets are clamping jaws arranged in a circumferential array, the outer side faces of the upper ends of the clamping jaws are conical faces with downward taper angles, and the lower ends of the collets are fixedly connected with a rotating shaft of the dynamic balancing machine body; an elastic gasket is arranged between the lower end of the collet and the seat body. When the collet chuck falls down, the clamping jaws are squeezed inwards through the outer side face, so that the rotor disc is clamped, and the rotor disc is very convenient to clamp.

To sum up, the beneficial effects of the utility model are that: the method is suitable for dynamic balance measurement of the rotor disc of the disc type motor, and can complete weight removal of the rotor disc; the operation and the installation are convenient; the influence of the axial suction of the rotor disc magnetic steel is eliminated, and the operation is safe.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the dynamic balancing machine body of fig. 1.

Fig. 3 is a schematic structural view of the rotary table and the parts above the rotary table of the present invention.

Fig. 4 is an exploded view of the rotor holder of the present invention.

Wherein: 1. the dynamic balancing machine comprises a dynamic balancing machine body, 2, a transmission mechanism, 3, a weight removing device, 4, a clamping oil cylinder switch, 5, a rotating hand wheel, 6, a milling cutter lifting adjusting wheel, 7, a milling cutter horizontal adjusting wheel, 8, a milling cutter switch, 9, a rotor clamp, 91, a base body, 92, a collet chuck, 93, a clamping jaw, 94, an elastic gasket, 95, a constraint screw, 10, a clamping oil cylinder, 11, a milling cutter, 12, a protective cover 13, a rotor disc, 14, a pressing block, 141, a pressing bolt, 15, a dividing disc, 16, a rotating table, 17, a display screen, 18, a control button, 19 and an electric cabinet.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

The embodiment shown in fig. 1 to 4 is a vertical type de-weighting dynamic balancing device for a rotor disc of a disc motor, and is characterized by comprising a dynamic balancing machine body 1, wherein the dynamic balancing machine body 1 adopts a model number PHLD-35H. The dynamic balancing machine body 1 is provided with an electric cabinet 19, and the electric cabinet 19 is provided with a control button 18 and a dynamic balancing result display screen 17. The upper side of the dynamic balancing machine body 1 is provided with a rotatable rotating platform 16, and the rotating platform 16 is provided with a rotating hand wheel 5. The dynamic balancing machine body 1 is electrically driven to rotate the rotating platform 16 through a conventional transmission mechanism 2, and as is well known to those skilled in the art, for the sake of brevity, the embodiment of the transmission mechanism 2 will not be described in detail, and during the weight removal, the position of the rotating platform 16 is more conveniently adjusted through the rotating hand wheel 5, that is, the weight removal of the rotor disc 13 is facilitated. The axial line of the rotating platform 16 is arranged vertically in the dynamic balancing machine body 1, the rotor fixture 9 for clamping the rotor disc 13 to be tested is arranged on the rotating platform 16, the rotor fixture 9 comprises a base body 91 fixed on the dynamic balancing machine body 1, a collet chuck 92 capable of sliding up and down is arranged in the base body 91, the upper end of the collet chuck 92 is provided with a clamping jaw 93 arranged in a circumferential array, the outer side surface of the upper end of the clamping jaw 93 is a conical surface with a downward cone angle, two symmetrical constraint screws 95 are arranged on two sides of the collet chuck 92, a vertical sliding groove matched with the constraint screws 95 is formed in the base body 91. The lower end of the collet 92 is fixedly connected with a rotating shaft of the dynamic balancing machine body 1; an elastic washer 94 is provided between the lower end of the collet 92 and the housing 91. The elastic gasket 94 plays a role of buffering and limiting. The rotor holder 9 is equipped with an index plate 15, on which index plate 15 angular indications are provided. The rotating platform 16 is also provided with a clamping device for reusing the rotor disc 13; the clamping device comprises a clamping cylinder 10 vertically fixed on a rotating platform 16, and a piston rod of the clamping cylinder 10 is provided with a rotatable pressing block 14. The piston rod is hinged to the piston and the press block 14 is fixed to the upper end of the piston rod so that the press block can rotate around the axis of the piston rod. The outer end of the pressing block 14 is provided with a pressing bolt 141 with adjustable height. The height adjustment of the pressing bolt 141 can be completed by screwing out or screwing in the screw threads, two groups of clamping devices are arranged on the rotating platform 16, and the two groups of clamping devices are symmetrically arranged on two sides of the rotating platform 16.

The weight removing device 3 which can move relative to the rotating platform 16 is arranged above the dynamic balancing machine body 1. The weight removing device 3 comprises a rotatable milling cutter 11 which is vertically arranged, and a protective cover 12 is arranged outside the milling cutter 11; the milling cutter 11 is equipped with a vertical lifting mechanism and a right-left translation mechanism that can move forward and backward toward the rotary table 16. The vertical lifting mechanism and the left-right translation mechanism can be manufactured according to the existing milling cutter 11 moving structure. Vertical elevating system and left and right translation mechanism are equipped with milling cutter lift adjustment wheel 6 and milling cutter horizontal adjustment wheel 7 respectively, make things convenient for the manual regulation of milling cutter 11. The plane of movement of the de-weighting means 3 passes through the plane of the axis of the turntable 16. The dynamic balancing machine body is provided with a milling cutter switch 8 corresponding to a milling cutter 11 and a clamping oil cylinder switch 4 corresponding to a clamping oil cylinder 10.

According to the application, the rotor disc 13 is fed firstly, the clamping end of the rotor disc 13 faces downwards and is inserted into the rotor clamp 9, after the stable placement is ensured, the control button 18 on the electric cabinet 19 is clicked to control the collet chuck 92 to descend, and therefore the rotor is clamped tightly. And then completing the calibration of the rotor disc 13, wherein the calibration operation is the first-item operation, and selecting a dynamic balance model of the rotor and a calibration option on an operation interface of the electric cabinet 19. The rotor disc 13 is operated, after data is stabilized, an H confirmation button of an electric control console keyboard is clicked, the rotor disc 13 is stopped, a calibration block is placed on the surface of the outer ring rotor disc 13, operation is clicked again, the rotor disc 13 rotates, after the data of the rotor disc 13 is stabilized, the data is stored, and the weight and the placement angle of the calibration block are recorded on the display screen 17. And (4) performing clamp compensation on the rotor disc 13, using the compensation operation of the rotor clamp 9 as the first piece of operation, clicking the parameter of the interface system of the electric control platform, namely clamp compensation, and selecting four times of clamp compensation. Placing the rotor disc 13 on the rotor fixture 9 and clamping, operating the rotor disc 13 to rotate, confirming after data is stabilized, loosening the rotor fixture 9, rotating the rotor disc 13 by 90 degrees relative to the rotor fixture 9, and continuing to operate the rotor disc 13 to rotate after clamping the rotor fixture 9. The above steps are repeated for a total of four tests, each test rotor disc 13 being rotated 90 ° relative to the rotor fixture 9. And storing the compensation value after the clamp compensation is completed. And then, the rotor dynamic balance detection is finished, the rotor disc 13 is placed on the rotor clamp 9 to be clamped, the test is carried out by clicking operation, and the result is recorded. And finally, removing the weight of the rotor disc 13, starting the switches 4 of the clamping oil cylinders 10 corresponding to the oil cylinders on the two sides, clamping the rotor disc 13, loosening the clamping fixture, ensuring that the rotor disc 13 is clamped by the clamping oil cylinders 10 on the two sides, and testing the main shaft of the fixture without stress. And simultaneously, a milling cutter switch 8 is turned on, and the milling cutter horizontal adjusting wheel 7 and the rotating hand wheel 5 of the rotating platform 16 are shaken to cut the part with the reduced weight of the required rotor. And (4) after the weight is removed, completing the retest of the rotor, and repeating the dynamic balance test of the rotor until the dynamic balance value is within the standard.

The rotor disc 13 is clamped through the rotating table 16 and the rotor clamp 9, the rotor disc 13 can be driven to rotate through the rotation of the rotating table 16, the vertical dynamic balance measurement of the rotor disc 13 is realized, the installation and the detection of the rotor disc 13 are convenient, the influence of the axial suction force of the magnetic steel of the rotor disc 13 is uniform, the influence of the axial suction force of the magnetic steel on the dynamic balance measurement of the rotor disc 13 is eliminated, and compared with the traditional horizontal rotor dynamic balance measuring machine, the scheme has the advantages of stable performance and high precision; the weight of the rotor disc 13 can be removed through the weight removing device 3, so that the dynamic balance precision of the rotor disc 13 is used; the operation and the installation are convenient; the influence of the axial suction force of the magnetic steel of the rotor disc 13 is eliminated, and the operation is safe.

Claims

1. A vertical de-weighting dynamic balancing device for a rotor disc of a disc type motor is characterized by comprising a dynamic balancing machine body, wherein a rotatable rotating table is arranged on the upper side of the dynamic balancing machine body, the axis of the rotating table is vertically arranged, a rotor clamp for clamping the rotor disc to be tested is arranged on the rotating table, the rotor clamp is provided with an index plate, and a clamping device for de-weighting the rotor disc is also arranged on the rotating table; and a weight removing device capable of moving relative to the rotating table is arranged above the dynamic balancing machine body.

2. A vertical de-weighting balancing device for rotor discs of disc-type electric machines according to claim 1, characterized in that the movement plane of said de-weighting means passes through the plane of the axis of the rotating table.

3. The vertical type de-weighting dynamic balancing equipment for the rotor disc of the disc type motor as claimed in claim 1, wherein the clamping device comprises a clamping cylinder vertically fixed on the rotating table, and a piston rod of the clamping cylinder is provided with a rotatable pressing block.

4. The vertical type de-weighting dynamic balance equipment for the rotor disc of the disc type motor as claimed in claim 3, wherein the outer end of the pressing block is provided with a pressing bolt with adjustable height.

5. A vertical de-weighting balancing device for rotor discs of disc-type electric machines, according to claim 1, 3 or 4, characterized in that said clamping means are provided in two groups on the rotary table, the two groups being symmetrically disposed on either side of the rotary table.

6. A vertical counterweight-removing balancing device for rotor discs of disc-type electric machines, as claimed in claim 1 or 2, characterized in that said counterweight-removing means comprise a vertically arranged rotatable milling cutter provided with a protective cover; the milling cutter is equipped with a vertical lifting mechanism and a left-right translation mechanism capable of moving forward and backward towards the rotating table.

7. A vertical de-weighting balancing device for rotor discs of disc-type electric machines, as claimed in claim 1, characterized in that said rotating table is provided with a rotating handwheel.

8. The vertical type de-weighting dynamic balancing equipment for the rotor disc of the disc type motor as claimed in claim 1, wherein the rotor fixture comprises a base body fixed on the dynamic balancing machine body, a collet chuck capable of sliding up and down is arranged in the base body, the upper end of the collet chuck is provided with clamping jaws arranged in a circumferential array, the outer side surface of the upper end of each clamping jaw is a conical surface with a downward taper angle, and the lower end of the collet chuck is fixedly connected with the rotating shaft of the dynamic balancing machine body; an elastic gasket is arranged between the lower end of the collet and the seat body.