CN208635966U - The debugging mechanism of impeller static balance debugging machine - Google Patents
The debugging mechanism of impeller static balance debugging machine Download PDFInfo
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- CN208635966U CN208635966U CN201820747561.1U CN201820747561U CN208635966U CN 208635966 U CN208635966 U CN 208635966U CN 201820747561 U CN201820747561 U CN 201820747561U CN 208635966 U CN208635966 U CN 208635966U
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- screw rod
- adjustment seat
- adjusting screw
- debugging
- seat component
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- 230000003068 static effect Effects 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 description 15
- 238000005259 measurement Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model relates to a kind of debugging mechanism of impeller static balance debugging machine, including fixing seat, adjustment seat component, the first adjusting screw rod, adjusting servo motor and the second adjusting screw rod；First adjusting screw rod is rotatably arranged in fixing seat；Adjustment seat component and the first adjusting screw rod are threadedly engaged and are slidably arranged in fixing seat, and second adjusting screw rod is rotatably arranged on adjustment seat component, adjust servo motor and are arranged on adjustment seat component and are sequentially connected with the second adjusting screw rod；Adjustment seat component is equipped with measuring piece and regulating part, and regulating part and the second adjusting screw rod are threadedly engaged and are slidably arranged on adjustment seat component.The measuring piece of debugging mechanism can be acquired the bottom surface bounce data of the radius data of centrifugal impeller or centrifugal impeller in impeller shaft rotary course, after acquiring above-mentioned data, ejection is carried out to centrifugal impeller periphery or bottom surface in conjunction with regulating part, makes its debugging to the requirement for meeting centrifugal impeller.
Description
Technical field
The utility model relates to a kind of centrifugal impeller static balance to debug machine automatically, and machine is debugged in especially a kind of impeller static balance
Debugging mechanism.
Background technique
Centrifugal impeller is widely used on the electric appliances such as range hood, air-conditioning, existing metal centrifugal impeller mainly by wheel disc,
Blade and torus are constituted, and wheel disc, blade and torus are formed by metal plate punching.The center of wheel disc is connect with drive shaft, wheel disc
Periphery and the concentricity of wheel disk center can meet the requirements substantially, and still, the material of wheel disc determines to be easy to appear at its neighboring
Rugged twisted phenomena (i.e. at wheel disc neighboring and the central axis upright degree of drive shaft be easy impacted).
And torus is to be connect by several blades with wheel disc, by the joint gap between torus and blade, blade stiffness
Etc. factors influence, the concentricity of torus and wheel disc may be undesirable.
When the center concentricity and perpendicularity deviation of the periphery of centrifugal impeller and its drive shaft exceed industry requirement, from
To occur during heart wheel rotation significantly moving up and down and the phenomenon that lateral wobble, so that the effect of influencing centrifugal impeller,
Biggish noise is generated simultaneously and influences the service life of driving motor and centrifugal impeller.
In view of the above-mentioned problems, each current centrifugal impeller is required to do static balance debugging before factory, still, at present
Static balance debud mode be it is manual, low efficiency, accuracy are poor.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable for structure, it is quiet flat to measure accurate, reliability and durability impeller
The debugging mechanism of weighing apparatus debugging machine, in place of overcome the deficiencies in the prior art.
Purpose of the utility model is realized as follows:
A kind of debugging mechanism of impeller static balance debugging machine, it is characterised in that: including fixing seat, adjustment seat component, first
Adjusting screw rod adjusts servo motor and the second adjusting screw rod；First adjusting screw rod is rotatably arranged in fixing seat；The tune
Section seat component and the first adjusting screw rod are threadedly engaged and are slidably arranged in fixing seat, the second adjusting screw rod rotation setting
On adjustment seat component, the adjusting servo motor is arranged on adjustment seat component and is sequentially connected with the second adjusting screw rod；Institute
Adjustment seat component is stated equipped with measuring piece and regulating part, regulating part and the second adjusting screw rod are threadedly engaged and are slidably arranged in tune
It saves on seat component.
The purpose of this utility model can also be solved using following technical measures:
As more specific scheme, the adjustment seat component includes the first sliding block, adjustment seat, the second sliding block and supporting plate,
First sliding block is slidably arranged in fixing seat and is threadedly coupled with the first adjusting screw rod, and first adjusting screw rod one end, which is stretched out, to be fixed
Seat is outer and connect with adjusting handle；Adjustment seat is fixed on the first sliding block, and the second adjusting screw rod is rotatably arranged on adjustment seat
On, the second sliding block is slidably arranged in adjustment seat and is threadedly coupled with the second adjusting screw rod, and supporting plate is arranged in adjustment seat
Portion adjusts servo motor and is arranged on motor rack, and motor rack is fixedly connected with one end of supporting plate and adjustment seat；The measuring piece
It is arranged on supporting plate.Adjusting handle can be finely adjusted the initial position of adjustment seat component.
In forked, the measuring piece is located in the prong of regulating part the regulating part.Design in this way, so that adjusting
The position of part is closer to measuring piece position.
The measuring piece is displacement sensor.
Institute's displacement sensors are equipped with the measuring head of telescopic movable, and measuring head outer end is equipped with idler wheel contact.
Institute's displacement sensors are equipped with the measuring head of telescopic movable, and measuring head outer end is equipped with wear-resisting contact.
Idler wheel contact and the equal effective protection measuring head of wear-resisting contact.
The beneficial effects of the utility model are as follows:
The measuring piece of the debugging mechanism of such impeller static balance debugging machine can be in impeller shaft rotary course to centrifugation
The radius data of impeller is acquired or is acquired to the bottom surface bounce data of the centrifugal impeller on impeller shaft, by adopting
After collecting above-mentioned data, ejection is carried out to centrifugal impeller periphery or bottom surface in conjunction with regulating part, makes its debugging to meeting centrifugal impeller
Requirement.
Detailed description of the invention
Fig. 1 is an embodiment of the present invention structural schematic diagram.
Fig. 2 is enlarged structure schematic diagram at A in Fig. 1.
Fig. 3 is enlarged structure schematic diagram at B in Fig. 1.
Fig. 4 is that the utility model installs partial structural diagram after centrifugal impeller.
Fig. 5 is that the utility model installs overlooking structure diagram after centrifugal impeller.
Fig. 6 is the C-C section view and partial enlargement structural representation of Fig. 5.
Fig. 7 is that idler wheel structure of contact terminal schematic diagram is arranged in displacement sensor in the utility model.
Fig. 8 is that wear-resisting structure of contact terminal schematic diagram is arranged in displacement sensor in the utility model.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
As basic scheme, a kind of debugging mechanism of impeller static balance debugging machine, including fixing seat, adjustment seat component,
First adjusting screw rod adjusts servo motor and the second adjusting screw rod；First adjusting screw rod is rotatably arranged in fixing seat；Institute
It states adjustment seat component and the first adjusting screw rod is threadedly engaged and is slidably arranged in fixing seat, the second adjusting screw rod rotation
It is arranged on adjustment seat component, the adjusting servo motor, which is arranged on adjustment seat component and is driven with the second adjusting screw rod, to be connected
It connects；The adjustment seat component is equipped with measuring piece and regulating part, and regulating part and the second adjusting screw rod are threadedly engaged and slide setting
On adjustment seat component.
The adjustment seat component includes the first sliding block, adjustment seat, the second sliding block and supporting plate, and the first sliding block is slidably arranged in
It is threadedly coupled in fixing seat and with the first adjusting screw rod, first adjusting screw rod one end is stretched out outside fixing seat and connected with adjusting handle
It connects；Adjustment seat is fixed on the first sliding block, and the second adjusting screw rod is rotatably arranged in adjustment seat, the sliding setting of the second sliding block
It is threadedly coupled in adjustment seat and with the second adjusting screw rod, supporting plate setting adjusts servo motor setting and exist on adjustment seat top
On motor rack, motor rack is fixedly connected with one end of supporting plate and adjustment seat；The measuring piece is arranged on supporting plate.
In forked, the measuring piece is located in the prong of regulating part the regulating part.
The measuring piece is displacement sensor.Institute's displacement sensors are equipped with the measuring head of telescopic movable.
As shown in connection with fig. 1, as further embodiment, by by debugging mechanism laterally setting or longitudinally disposed, that is, being formed
The radial data monitoring assembly 1 of machine is debugged in centrifugal impeller static balance automatically or the axial number of machine is debugged in centrifugal impeller static balance automatically
According to monitoring assembly 5.
In conjunction with shown in Fig. 2 to Fig. 6, machine, including board 6 are debugged in centrifugal impeller static balance automatically, and board 6 turns equipped with impeller
Axis 3, impeller shaft 3 and rotary drive motor 32 are sequentially connected, and 1 He of radial data monitoring assembly is equipped with by the impeller shaft 3
Axial data monitoring assemblies 5；The radial data monitoring assembly 1 includes the radial measurement moved along 3 radiai adjustment of impeller shaft
Part 2 and concentricity regulating part 11, axial data monitoring assemblies 5 include that the axially measured part 4 moved is adjusted axially along impeller shaft 3
With verticality regulating part 51.
The radial data monitoring assembly 1 further includes transverse holder 15, lateral adjustments seat component, horizontal first lateral adjustments
Screw rod 16, lateral adjustments servo motor 13 and the second lateral adjustments screw rod 132；The transverse holder 15 is arranged on board 6,
The horizontal first lateral adjustments screw rod 16 is laterally arranged and is rotatably arranged in transverse holder 15；The lateral adjustments seat structure
Part and the first lateral adjustments screw rod 16, which are threadedly engaged and slide laterally, to be arranged in transverse holder 15, and described second laterally adjusts
Section screw rod 132 is laterally arranged and is rotatably arranged on lateral adjustments seat component, and the lateral adjustments servo motor 13 is arranged in cross
To on adjustment seat component and with the second lateral adjustments screw rod 132 be sequentially connected
The radial measurement part 2 is arranged on lateral adjustments seat component, and the concentricity regulating part 11 and second is laterally adjusted
Section screw rod 132, which is threadedly engaged and slides laterally, to be arranged on lateral adjustments seat component.
The lateral adjustments seat component includes the first transverse slider 17, lateral adjustments seat 18, the second transverse slider 19 and cross
To supporting plate 12, the first transverse slider 17 slide laterally be arranged in transverse holder 15 and with the first lateral adjustments screw rod 16
It is threadedly coupled, horizontal first lateral adjustments screw rod, 16 one end is stretched out outside transverse holder 15 and connect with the first adjusting handle 14；It is horizontal
It is fixed on the first transverse slider 17 to adjustment seat 18, the second lateral adjustments screw rod 132 is rotatably arranged on lateral adjustments seat
On 18, the second transverse slider 19, which slides laterally, to be arranged on lateral adjustments seat 18 and connects with 132 screw thread of the second lateral adjustments screw rod
It connects, the setting of lateral support plate 12 is arranged in 18 top of lateral adjustments seat, lateral adjustments servo motor 13 in first motor frame 131
On, first motor frame 131 is fixedly connected with one end of lateral support plate 12 and lateral adjustments seat 18；The radial measurement part 2 is set
It sets on lateral support plate 12.
The axial direction data monitoring assemblies 5 further include longitudinally fixed seat 54, vertical adjustment seat component, first longitudinal direction adjusting spiral shell
Bar 55, vertical adjustment servo motor 58 and second longitudinal direction adjusting screw rod 56；The longitudinally fixed seat 54 is arranged on board 6, institute
It is longitudinally disposed and be rotatably arranged on longitudinally fixed seat 54 to state first longitudinal direction adjusting screw rod 55；The vertical adjustment seat component with
First longitudinal direction adjusting screw rod 55 is threadedly engaged and longitudinal sliding motion is arranged on longitudinally fixed seat 54, and the second longitudinal direction adjusts spiral shell
Bar 56 is longitudinally disposed and is rotatably arranged on vertical adjustment seat component, and the vertical adjustment servo motor 58 is arranged in longitudinal tune
It saves on seat component and is sequentially connected with second longitudinal direction adjusting screw rod 56.
The radial measurement part 2 is arranged on vertical adjustment seat component, the concentricity regulating part 11 and second longitudinal direction tune
Section screw rod 56 is threadedly engaged and longitudinal sliding motion is arranged on vertical adjustment seat component.
The vertical adjustment seat component includes first longitudinal direction sliding block 53, vertical adjustment seat 52, second longitudinal direction sliding block 57 and indulges
To supporting plate 59,53 longitudinal sliding motion of first longitudinal direction sliding block be arranged on longitudinally fixed seat 54 and with first longitudinal direction adjusting screw rod 55
It is threadedly coupled, 55 one end of first longitudinal direction adjusting screw rod is stretched out outside longitudinally fixed seat 54 and connect with the second adjusting handle 551；It is vertical
It is fixed on first longitudinal direction sliding block 53 to adjustment seat 52, second longitudinal direction adjusting screw rod 56 is rotatably arranged on vertical adjustment seat 52
On, 57 longitudinal sliding motion of second longitudinal direction sliding block is arranged on vertical adjustment seat 52 and is threadedly coupled with second longitudinal direction adjusting screw rod 56,
On 52 top of vertical adjustment seat, vertical adjustment servo motor 58 is arranged on the second motor rack 581 for longitudinal setting of supporting plate 59, the
Two motor racks 581 are fixedly connected with one end of longitudinal supporting plate 59 and vertical adjustment seat 52；The setting of radial measurement part 2 is vertical
To on supporting plate 59.
For the concentricity regulating part 11 in forked, the radial measurement part 2 is located at the prong 111 of concentricity regulating part 11
It is interior；In forked, the axially measured part 4 is located in the prong 511 of verticality regulating part 51 the verticality regulating part 51.
The radial measurement part 2 and axially measured part 4 are displacement sensor.
Institute's displacement sensors are equipped with measuring head (measuring head 21 of radial measurement part 2, the axially measured part 4 of telescopic movable
Measuring head 41), measuring head outer end be equipped with idler wheel contact 24(as shown in Figure 7, idler wheel contact 24 be arranged on wheel carrier 23, wheel carrier
23 are equipped with connecting screw 25, and connecting screw 25 is equipped with nut 22, and connecting screw 25 connect with measuring head 21 and by nut 22
Locking) or wear-resisting contact 26(is as shown in Figure 8, wear-resisting contact 26 is equipped with connecting screw, and connecting screw is connect with measuring head 21).
1 vertical adjustment of radial data monitoring assembly is arranged on board 6；The axial direction data monitoring assemblies 5 are laterally
It adjusts and is arranged on board 6.Specifically: radial data monitoring assembly 1 is corresponded on the board 6 equipped with the first support base 61, diameter
Cooperation is slided up and down by guide post 151 and the first support base 61 to the transverse holder 15 of data monitoring assemblies 1；Transverse holder
Clamping screw 153 is additionally provided on 15, clamping screw 153 is equipped with locking nut 152, clamping screw 153 and transverse holder 15
It is threadedly coupled with the first support base 61, locking nut 152 is threadedly coupled with clamping screw 153.Corresponding axial direction number on the board 6
It is equipped with the second support base 62 according to monitoring assembly 5, elongated hole 621 is transversely provided on the second support base 62, connector passes through elongated hole
It is connect after 621 with board 6, the second support base 62 is adjusted along 621 length direction of elongated hole.
Above-mentioned centrifugal impeller static balance debugs machine automatically and is additionally provided with electric-control system, and man-machine interface is equipped in electric-control system and is referred to
Show lamp (red green indicator light), the rotary drive motor 32 of impeller shaft 3 is servo motor.Rotary drive motor 32 and vertical adjustment
Servo motor 58 is located at 6 lower section of board.
Its working principle is that: according to the outer dimension of centrifugal impeller 7 to radial data monitoring assemblies 1 and axial data monitoring
The initial position of component 5 fixes, if needed can be by the first adjusting handle 14 and the second adjusting handle 551 respectively to cross
It is finely adjusted to adjustment seat component and vertical adjustment seat component, that is, realizes the initial bit to radial measuring piece 2 and axially measured part 4
It sets and is precisely adjusted.When the initial position of radial measurement part 2, the centre distance of radial measurement part 2 and impeller shaft 3 should be small
In or equal to centrifugal impeller 7 radius；The level height of axially measured part 4 should be higher than that or theoretically install equal to centrifugal impeller 7
Floor height on impeller shaft 3.
Centrifugal impeller 7 is loaded on impeller shaft 3, impeller shaft 3 pass through 7 centre bore of centrifugal impeller after with lock nut 31
Connection, so that centrifugal impeller 7 is positioned.The radius size that centrifugal impeller 7 is set in man-machine interface starts machine, laterally
The adjusting control concentricity regulating part 11 of servo motor 13 moves rapidly from zero-bit is centrally formed certain distance D0's with impeller shaft 3
Position, 7 radius R+ safe distance D1 of D0=centrifugal impeller, by taking diameter is the centrifugal impeller 7 of 240mm as an example, it is assumed that safe distance D1
It is 125mm for 5mm, i.e. D0.Start rotary drive motor 32, begins through radial measurement part 2 and acquire the bounce of 7 circumference of centrifugal impeller
Data, meanwhile, the opposite position of impeller shaft 3 is acquired by the encoded servo device of rotary drive motor 32 simultaneously.Work as radial direction
At measuring piece 2 acquisition radius data 5 times per second, by every rotation 20 degree of acquisitions, one radius data of impeller shaft 3, that is, rotate a circle
18 radius datas are acquired, so, control 3 revolving speed of impeller shaft is 3.6 seconds/circle；Every time when acquisition radius data, while will be right
The radian data answered are recorded.It is analyzed by the data of record, when the difference of maximum radius value and least radius value is less than X(X root
Depending on different centrifugal impellers 7, X value can be set by man-machine interface) when, lateral adjustments servo motor 13 resets, and arrives vertical
It works to servo motor 58 is adjusted.If the difference of maximum radius value and least radius value is greater than X, rotary drive motor 32 will be maximum
The opposite position of concentricity regulating part 11 is rotated at outer diameter, lateral adjustments servo motor 13 controls concentricity regulating part 11 from zero
The amount of feeding lighted is that D1+X0(can set X0 as 0.2mm/0.3mm/0.4mm etc.), by taking the present embodiment as an example: such as acquisition number
According to maximum point be X1, smallest point is X2, then debugged since the corresponding position of X1 data, the data debugging of X1 to X3 ±
X4(is for example: X4 0.1mm), X3=(X1-X2)/2+ X2, if by above-mentioned debugging, if being less than the position of setting, that
It is D1+2X0, D1+3X0, D1+ that lateral adjustments servo motor 13, which controls the amount of feeding of the concentricity regulating part 11 from zero point,
4X0 ... is until the debugging of centrifugal impeller 7 to setting position or is more than setting position position.Rotary drive motor 32 starts, further
Secondary acquisition radius data, within 3 debugging (contain 3 times), when collecting the difference of maximum radius value and least radius value less than 0.3
When, lateral adjustments servo motor 13 resets, and works to vertical adjustment servo motor 58.If 3 debugging cannot all reach requirement,
Shiny red indicator light alarm.
It is mobile theoretical with 7 bottom surface of centrifugal impeller rapidly from zero-bit that vertical adjustment servo motor 58 controls verticality regulating part 51
Height (51 upper end of verticality regulating part is H1 with the theoretical level distance) under, starts rotary drive motor 32, starts to lead to
It crosses axially measured part 4 and acquires centrifugal impeller 7 lower mouth (bottom surface) bounce data, meanwhile, the encoded servo device of rotary drive motor 32
The opposite position of impeller shaft 3 is acquired simultaneously, data acquisition modes with radius acquisition mode, debud mode also with radius
Debud mode is similar, and the numerical value only specifically fed is not necessarily identical, and this will not be detailed here.
Above-mentioned centrifugal impeller 7 is mainly made of wheel disc 73, blade 72 and torus 71, and wheel disc 73, blade 72 and torus 71 are equal
It is formed by metal plate punching.The center of wheel disc 73 is connect with impeller shaft 3, and torus 71 is to be connected by several blades 72 with wheel disc 73
It connects, several blades 72 are uniformly distributed around the center of wheel disc 73.
Claims (6)
1. a kind of debugging mechanism of impeller static balance debugging machine, it is characterised in that: it is adjusted including fixing seat, adjustment seat component, first
It saves screw rod, adjust servo motor and the second adjusting screw rod；First adjusting screw rod is rotatably arranged in fixing seat；The adjusting
Seat component and the first adjusting screw rod are threadedly engaged and are slidably arranged in fixing seat, and second adjusting screw rod is rotatably arranged on
On adjustment seat component, the adjusting servo motor is arranged on adjustment seat component and is sequentially connected with the second adjusting screw rod；It is described
Adjustment seat component is equipped with measuring piece and regulating part, and regulating part and the second adjusting screw rod are threadedly engaged and are slidably arranged in adjusting
On seat component.
2. the debugging mechanism of impeller static balance debugging machine according to claim 1, it is characterised in that: the adjustment seat component packet
The first sliding block, adjustment seat, the second sliding block and supporting plate are included, the first sliding block is slidably arranged in fixing seat and adjusts spiral shell with first
Bar is threadedly coupled, and first adjusting screw rod one end is stretched out outside fixing seat and connect with adjusting handle；Adjustment seat is fixed at first
On sliding block, the second adjusting screw rod is rotatably arranged in adjustment seat, and the second sliding block is slidably arranged in adjustment seat and adjusts with second
Screw flight connection, supporting plate setting adjust servo motor and are arranged on motor rack on adjustment seat top, motor rack and supporting plate
It is fixedly connected with one end of adjustment seat；The measuring piece is arranged on supporting plate.
3. the debugging mechanism of impeller static balance debugging machine according to claim 1, it is characterised in that: the regulating part is in fork
Shape, the measuring piece are located in the prong of regulating part.
4. the debugging mechanism of impeller static balance debugging machine according to claim 1, it is characterised in that: the measuring piece is displacement
Sensor.
5. the debugging mechanism of impeller static balance debugging machine according to claim 4, it is characterised in that: institute's displacement sensors are set
There is the measuring head of telescopic movable, measuring head outer end is equipped with idler wheel contact.
6. the debugging mechanism of impeller static balance debugging machine according to claim 4, it is characterised in that: institute's displacement sensors are set
There is the measuring head of telescopic movable, measuring head outer end is equipped with wear-resisting contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820747561.1U CN208635966U (en) | 2018-05-19 | 2018-05-19 | The debugging mechanism of impeller static balance debugging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820747561.1U CN208635966U (en) | 2018-05-19 | 2018-05-19 | The debugging mechanism of impeller static balance debugging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635966U true CN208635966U (en) | 2019-03-22 |
Family
ID=65732731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820747561.1U Expired - Fee Related CN208635966U (en) | 2018-05-19 | 2018-05-19 | The debugging mechanism of impeller static balance debugging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208635966U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489670A (en) * | 2018-05-19 | 2018-09-04 | 王东林 | Machine is debugged in centrifugal impeller static balance automatically |
-
2018
- 2018-05-19 CN CN201820747561.1U patent/CN208635966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489670A (en) * | 2018-05-19 | 2018-09-04 | 王东林 | Machine is debugged in centrifugal impeller static balance automatically |
| CN108489670B (en) * | 2018-05-19 | 2024-02-27 | 王东林 | Automatic static balance adjuster for centrifugal impeller |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |