CN113945322A

CN113945322A - Automatic impeller dynamic balance adjusting equipment and method

Info

Publication number: CN113945322A
Application number: CN202010686100.XA
Authority: CN
Inventors: 陈杰; 李秋胜
Original assignee: City University of Hong Kong CityU
Current assignee: City University of Hong Kong CityU
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2022-01-18
Anticipated expiration: 2040-07-16
Also published as: CN113945322B

Abstract

The invention relates to the field of dynamic balance adjustment of large aviation impellers, and particularly discloses automatic dynamic balance adjustment equipment and a method for impellers, wherein the equipment comprises the following components: the device comprises a main shaft, a supporting seat, a transverse displacement assembly, a distance sensor and an output assembly, wherein the output assembly comprises a servo motor and a synchronous belt; the automatic balanced daub filling assembly comprises a horizontal displacement mechanism, a manipulator, a steering mechanism, a daub filling head, a glue breaking mechanism and a floating mechanism, wherein the horizontal displacement mechanism is used for driving the automatic balanced daub filling assembly to move along the axial direction, the manipulator is arranged at the output end of the horizontal displacement mechanism, the steering mechanism is arranged at the output end of the manipulator, the daub filling head is arranged at the output end of the steering mechanism, the glue breaking mechanism is arranged at the output end of the steering mechanism, and the base is used for providing a mounting platform for the automatic balanced daub filling assembly and the output assembly. This application adopts full automatic dynamic balance actual measurement and carries out automatic adjustment's mode processing large-scale impeller, has reduced artifical intensity of labour, has improved work efficiency, very big increase dynamic balance adjustment's precision.

Description

Automatic impeller dynamic balance adjusting equipment and method

Technical Field

The invention relates to the field of dynamic balance adjustment of large aviation impellers, in particular to automatic dynamic balance adjustment equipment and method for an impeller.

Background

Aircraft engines are highly sophisticated aircraft components that are vigorously developed in various countries. The large impeller is a core component of the engine, and when the large impeller works, the impeller rotates at a high speed, and the stability and the balance of the impeller have important influence on the performance of the whole engine, so that the impeller needs to be subjected to a strict dynamic balance test before being installed, and the impeller plays an important role in the performance of the whole engine system.

Particularly, with the gradual optimization and improvement of the structure of the aviation impeller, the integrated impeller with the more and more complex structure begins to appear, and the aviation impellers generally have the characteristics of smaller blade interval, large distortion, thinner blade thickness and the like. This places increasing demands on the accuracy, size and overall quality of the impeller blades of aircraft engines.

In a conventional dynamic balance test of a large impeller, the impeller is adjusted and weighted in a manner of adding an iron block to the impeller manually, so that the impeller reaches a dynamic balance state again. The mode needs manual work to continuously adjust all deviation directions of the impeller and continuously adjust the weight increment in a single direction, and has high labor intensity and low working efficiency. In addition, during concrete adjustment, operating personnel is difficult to accurate, the quantitative weight that sets up the counter weight iron plate when carrying out manual counter weight, only can come the approximate counter weight iron plate that selects to be close with required counter weight according to experience, and during manual installation, the installation position of balancing weight also need judge through experience, also can produce certain error, consequently still produces the deviation easily behind the manual re-counter weight, and then leads to the dynamic balance performance of impeller not up to standard, influences product quality.

Disclosure of Invention

In view of prior art's not enough, an object of this application is to provide an impeller dynamic balance automatic adjustment equipment, and it is big to have solved artifical operation mode manual labor intensity who increases the mode that increases the iron plate to the impeller and adjust aggravating, and work efficiency is low, and because the operation is comparatively loaded down with trivial details, the deviation appears very easily, leads to the dynamic balance performance of impeller not up to standard, influences product quality scheduling problem.

The above object of the present invention can be achieved by the following technical solutions:

an automatic impeller dynamic balance adjustment apparatus comprising:

the main shaft is used for mounting the impeller to be tested;

the supporting seats are arranged at intervals along the axial direction of the main shaft;

the transverse displacement assembly is arranged on the supporting seat and is in transmission connection with two ends of the main shaft;

the distance sensor is arranged on the supporting seat and used for detecting the transverse displacement of the main shaft along the direction perpendicular to the axial direction;

the output assembly comprises a servo motor for providing a spindle rotating force and a synchronous belt for driving and connecting the servo motor and the spindle;

the balanced automatic daub filling assembly comprises a horizontal displacement mechanism for driving the balanced automatic daub filling assembly to move along the axial direction, a manipulator arranged at the output end of the horizontal displacement mechanism, a steering mechanism arranged at the output end of the manipulator, a daub filling head arranged at the output end of the steering mechanism, a daub breaking mechanism and a troweling mechanism, wherein the daub filling head is used for providing daub, the daub breaking mechanism is used for cutting off residual daub on the daub filling head, and the troweling mechanism is used for troweling the daub filled on the impeller;

the base is used for providing a mounting platform for the output assembly and the balanced daub automatic filling assembly.

In a preferred embodiment, the automatic impeller dynamic balance adjustment device further comprises an adjustment mechanism, and the adjustment mechanism comprises: the threaded rod is arranged at the bottom of the supporting seat, a plurality of threaded holes matched with the threaded rods are formed in the bottom of the supporting seat, each threaded rod vertically extends in the direction perpendicular to the plane of the base, and the threaded rods are arranged at intervals along the axial direction perpendicular to the axial direction.

In a preferred embodiment, output assembly still includes the pivot, follows driving wheel, drive wheel, conveyer belt, the pivot is used for the installation follow driving wheel, the drive wheel sets up servo motor's output, the conveyer belt sets up the drive wheel with from between the driving wheel, the hold-in range overlaps respectively and is established follow driving wheel and main shaft on, servo motor output passes through the drive belt drives from the driving wheel rotation, follow driving wheel rotation and pass through the hold-in range drives the main shaft rotates.

In a preferred embodiment, the output assembly further comprises: tensioning support, two take-up pulleys, two sliders and two first springs, the top fixed mounting of tensioning support has the mounting panel, the inside of installation version is provided with the mounting groove, the take-up pulley sets up one side of installation version, first spring mounting is in the mounting groove, slider slidable ground sets up in the mounting groove, the one end of first spring with the lateral wall of installation version is fixed mutually, the other end with the slider is fixed mutually, the slider along the axial of main shaft is connected with the connecting rod, the take-up pulley with connecting rod looks coupling, two one side that the take-up pulley is close to each other respectively with synchronous belt drive is connected.

In a preferred embodiment, further comprising an adjustment assembly, the adjustment assembly comprising: the piston rod, set up and be in the adapter sleeve and the air cock of aerifing at piston rod both ends, the piston rod horizontal installation be in the supporting seat, the adapter sleeve is fixed the both ends of piston rod and with the supporting seat is fixed, aerify the air cock through the adapter sleeve in the piston rod is linked together.

In a preferred embodiment, the adjustment assembly further comprises a one-way valve, the one-way valve comprising: valve section of thick bamboo, valve top, triangle mount, connecting rod, second spring and valve bulb, valve section of thick bamboo with valve top fixed connection forms the check valve main part, valve section of thick bamboo is kept away from the one end of valve top with aerify the air cock and connect, the valve top is provided with the inflation hole, the triangle mount with valve top fixed connection, connecting rod slidable ground sets up in the triangle mount, valve bulb fixed mounting be in the connecting rod is kept away from the one end of triangle mount, valve bulb's external diameter is greater than the aperture of inflation hole, the second spring housing is established on the connecting rod, the second spring to one end with the triangle mount is fixed, the other end with the connecting rod is close to valve bulb's one end is fixed.

In a preferred embodiment, the horizontal displacement mechanism includes: a guide rail, a sliding plate, a rack, a gear and a transverse displacement motor,

the guide rail and the rack extend lengthwise along the axial direction of the main shaft and are fixed on the base,

the sliding plate is slidably arranged on the guide rail; the manipulator is fixed on the sliding plate,

the transverse displacement motor is fixed on the sliding plate, the output end of the transverse displacement motor is fixedly connected with the gear, the gear is matched with the rack,

the output end of the transverse displacement motor drives the gear to rotate, and the gear is matched with the rack to drive the sliding plate to move along the guide rail so as to drive the manipulator to move synchronously.

In a preferred embodiment, the glue breaking mechanism comprises: a fixed frame, a rotating motor and a glue-breaking cutter,

the axial direction of an output shaft of the rotating motor is consistent with the output direction of the daub filling head;

the fixing frame is fixedly arranged on the cement filling head and used for installing the rotating motor;

the end part of the glue breaking cutter is fixedly connected with an output shaft of the rotating motor and can be rotatably arranged on the outer side of the output end of the cement filling head.

In a preferred embodiment, the floating mechanism comprises a rotary mounting frame and a roller, wherein the rotary mounting frame is fixedly arranged on the output end of the steering mechanism; the axial direction of gyro wheel with the axial of main shaft is perpendicular, the both ends of gyro wheel with the both sides lateral wall of rotation mounting bracket rotates and is connected.

An automatic impeller dynamic balance adjusting method based on the automatic impeller dynamic balance adjusting device comprises the following steps:

installing the impeller to be tested on the main shaft, and then respectively placing two ends of the main shaft on the supporting seats;

starting a servo motor, and realizing the driving operation of the rotation of the impeller through an output assembly;

detecting the offset of two ends of the main shaft in the rotation process of the impeller through the distance sensor;

starting the balanced automatic cement filling assembly, vertically driving the manipulator to move towards the impeller direction by the horizontal displacement mechanism, moving the cement filling head to a gluing station, ejecting cement by the cement filling head, and driving the impeller to rotate by the servo motor until the offset is zero;

and closing the servo motor, starting the glue breaking mechanism, cutting off the daub on the daub filling head, outputting by the steering mechanism, switching stations of the daub filling head and the trowelling mechanism, starting the trowelling mechanism, and flattening the daub sprayed out of the daub filling head.

Advantageous effects

Compared with the prior art, the impeller dynamic balance automatic adjustment equipment provided in the embodiment of the application is brand-new full-automatic dynamic balance actual measurement equipment, can modulate the dynamic balance performance of a large impeller in an automatic adjustment mode, reduces the labor intensity of workers, improves the working efficiency, and greatly increases the accuracy of dynamic balance adjustment. Furthermore, the take-up pulley in the output assembly is used for preventing that the impeller makes the hold-in range lax when dynamic unbalance, and the supporting seat is used for supplying the both ends overlap joint of main shaft, and the lateral displacement mechanism is used for the swing usefulness when supplying the impeller dynamic unbalance to measure the dynamic balance numerical value of impeller through the sensor. The adjusting mechanism is used for adjusting the initial moving pressure of the transverse line displacement mechanism, and the two ends of the piston rod can be inflated through the small one-way valve, so that the initial pressures of the two ends are controlled, and the pressure is the transverse vibration force generated when the impeller is in dynamic unbalance. After the dynamic balance value is measured, the balance value is adjusted through a balance clay automatic filling mechanism arranged beside the dynamic balance value, and finally, the operation of automatically, accurately and efficiently adjusting the dynamic balance of the impeller is completed.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive labor.

Fig. 1 is a schematic perspective view of an automatic impeller dynamic balance adjustment apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic perspective view of an automatic impeller dynamic balance adjustment apparatus according to a second embodiment of the present invention;

fig. 3 is a front view of an automatic impeller dynamic balance adjustment apparatus provided by the present invention;

FIG. 4 is a schematic perspective view of the balanced mastic automatic filling assembly of the present invention;

FIG. 5 is a schematic perspective view of the robot and the load thereon according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a perspective view of an output assembly of the present invention;

FIG. 8 is a partially exploded perspective view of the output assembly of the present invention;

FIG. 9 is a schematic perspective view of the lateral displacement assembly and adjustment mechanism of the present invention;

FIG. 10 is an exploded perspective view of FIG. 9 of the present invention;

FIG. 11 is an exploded perspective view of the check valve of the present invention;

fig. 12 is an exploded perspective view of the mounting plate and overhead load of the present invention.

Fig. 13 is a flowchart illustrating steps of an automatic impeller dynamic balance adjustment method according to the present invention.

Description of reference numerals:

1. a base; 2. a main shaft; 3. a supporting seat; 4. a lateral displacement assembly; 5. a distance sensor; 6. an adjustment mechanism; 7. an output component; 8. a servo motor; 9. a synchronous belt; 10. a balanced daub automatic filling assembly; 11. a cement fill head; 12. a mounting seat; 13. a horizontal displacement mechanism; 14. a manipulator; 15. a steering mechanism; 16. a glue breaking mechanism; 17. a troweling mechanism; 18. a threaded rod; 19. a rotating shaft; 20. a driven wheel; 21. a drive wheel; 22. a transmission belt; 23. tensioning the bracket; 24. a tension wheel; 25. a slider; 26. a first spring; 27. a piston rod; 28. connecting sleeves; 29. an inflation nozzle; 30. a one-way valve; 31. a valve barrel; 32. a valve top; 33. a triangular fixing frame; 34. a connecting rod; 35. a second spring; 36. a valve ball head; 37. a bonnet cap; 38. a guide rail; 39. a sliding plate; 40. a rack; 41. a gear; 42. a lateral displacement motor; 43. a fixed mount; 44. a rotating electric machine; 45. a glue cutting knife; 46. a mounting frame; 47. a roller; 48. a sliding groove; 49. mounting a plate; 50. mounting grooves; 51. a connecting rod.

Detailed Description

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, the automatic impeller dynamic balance adjusting apparatus mainly includes: the automatic filling device comprises a base 1, a main shaft 2, a supporting seat 3, a transverse displacement assembly 4, a distance sensor 5, an adjusting mechanism 6, an output assembly 7 and a balanced clay automatic filling assembly 10.

In the present embodiment, the base 1 is used to provide a mounting platform for the whole apparatus, and specifically, the base 1 may have a flat plate shape with a certain thickness. The base 1 is provided with an output component 7, a balanced daub automatic filling component 10 and the like.

The supporting seat 3 is used for installing the main shaft, and the number of the supporting seat 3 can be 2. When the number of the supporting seats 3 is two, the two supporting seats 3 can be respectively vertically installed at two ends close to the base 1.

The main shaft 2 is used for installing an impeller to be tested. The main shaft 2 can be horizontally arranged right above the base 1 through a supporting seat 3. Specifically, two ends of the main shaft 2 are respectively located at the top ends of the two supporting seats 3, and the end part of the main shaft 2 is in transmission connection with the transverse displacement assembly at the top end of the supporting seat 3. And the two supporting seats 3 are respectively and fixedly provided with a transverse displacement component 4 and a distance sensor 5. The lateral displacement assembly 4 may be at least partially horizontally arranged inside the support base 3. In particular, the lateral displacement assembly 4 may comprise two rollers located at the ends of the main shaft 2. The distance sensor 5 is fixedly mounted on the side wall of the support base 3. The detection direction of the distance sensor 5 is perpendicular to the axial direction of the spindle 2. The adjusting mechanisms 6 are fixedly arranged at two sides of the transverse displacement assembly 4. The output component 7 is fixedly arranged on the base 1. The output assembly 7 includes: a servo motor 8 and a timing belt 9. Servo motor 8 horizontal fixed mounting is on the top of base 1, and servo motor 8 is connected through the synchronous belt 9 transmission with main shaft 2.

The same side of the two supporting seats 3 is provided with a balanced daub automatic filling component 10. The balanced automatic daub filling assembly 10 is arranged above the base 1 and can horizontally slide along the axial direction of the spindle 2.

The balanced mastic automatic filling assembly 10 includes: the rubber coating lateral wall of treating of the directional impeller of daub fill head 11, the output of daub fill

head

11, 1 top of base is equipped with the mount pad 12 of two vertical settings, and the bottom of two supporting seats 3 is fixed mounting respectively on the top of two mount pads 12. The balanced automatic daub filling assembly 10 further comprises a horizontal displacement mechanism 13, a manipulator 14, a steering mechanism 15, a glue breaking mechanism 16 and a floating mechanism 17. The manipulator 14 is vertically and fixedly installed at the output end of the horizontal displacement mechanism 13, the steering mechanism 15 is fixedly installed at the output end of the manipulator 14, the daub filling head 11, the glue breaking mechanism 16 and the trowelling mechanism 17 are all fixedly installed at the output end of the steering mechanism 15, and the daub filling head 11 and the glue breaking mechanism 16 are located on the same side of the steering mechanism 15.

When carrying out action balance real time measurement to the large-scale impeller of aviation, install the impeller at the middle part of main shaft 2 earlier, set up the both ends of main shaft 2 on two supporting seats 3 respectively, adjust the initial movement pressure of lateral displacement subassembly 4 through adjustment mechanism 6, provide the lateral vibration power when for the impeller dynamic unbalance, output module 7 works, servo motor 8 output drives main shaft 2 through hold-in range 9 and rotates, 2 both ends of main shaft rotate on lateral displacement subassembly 4, main shaft 2 drives lateral displacement subassembly 4 and takes place the skew under the impeller dynamic unbalance pivoted state, record this offset through distance sensor 5, rethread balanced daub automatic filling subassembly 10 adds balanced daub for the impeller, make the impeller reach the dynamic balance state, thereby realize impeller dynamic balance automatic adjustment function.

When the offset value measured by the distance sensor is not zero in the automatic impeller dynamic balance adjustment process, the impeller is in a dynamic unbalance state at the moment. At this time, the test can be carried out by continuously adding the balancing daub until the offset value measured by the distance sensor is zero.

Specifically, in the automatic glue filling process, the horizontal displacement mechanism 13 drives the manipulator 14 to horizontally displace. The steering mechanism 15 is used for switching the daub filling head 11, the glue breaking mechanism 16 and the trowelling mechanism 17. The cement filling head 11 provides cement for dynamic balance of the impeller. The glue breaking mechanism 16 is used for cutting off the residual glue mud on the glue mud filling head 11, and timely cuts off the residual glue mud to prevent the glue mud from being adhered to the glue mud filling head, so that the glue mud filling effect is prevented from being influenced. The trowelling mechanism 17 is used for trowelling the daub filled on the impeller, so that the weight of the daub is increased evenly, and the automatic daub filling operation is completed. Wherein, the material of this daub can select for use the material that can the rapid-curing cutback to be favorable to guaranteeing going on smoothly of automatic filler. On the whole, this mode that the daub was filled is simple effective, compares in solid filling comparatively convenient, and the controllability is good, the precision is adjusted higher.

Referring to fig. 9, a perspective view of the lateral displacement assembly 4 and the adjustment mechanism 6 is shown. The lateral displacement assembly 4 mainly comprises: and the group of rollers are in transmission fit with the main shaft. The adjustment mechanism may comprise a threaded rod 18 located at the bottom of the support base 3 and arranged vertically. Specifically, the number of the threaded rods 18 may be 2 or more. As shown in fig. 9, the number of the threaded rods 18 is two, and the two threaded rods 18 may be arranged at intervals in a lateral direction perpendicular to the axial direction of the main shaft. The top of the mounting base 12 is provided with a threaded hole for mounting the threaded rod 18. The supporting seat 3 and the mounting seat 12 are fixedly connected through bolts. Before the device works, the relative height of the threaded rod 18 can be adjusted according to different impeller sizes to be processed, so that the height of the supporting seat 3 relative to the mounting seat 12 is controlled, and impellers with different sizes can be mounted conveniently.

Referring to fig. 7 and 8, the output assembly is shown in which a rotating shaft 19 is horizontally disposed and rotatable on a side wall of one of the mounting seats 12. The rotating shaft 19 is used for mounting a driven wheel 20, and in particular, the driven wheel 20 is vertically arranged on one side of the rotating shaft 19 close to the impeller. The output end of the servo motor 8 is vertically provided with a driving wheel 21. A belt 22 is provided between the drive pulley 21 and the driven pulley 20. Both ends of the transmission belt 22 are respectively sleeved on the driving wheel 21 and the driven wheel 20. Two ends of the synchronous belt 9 are respectively sleeved on the driven wheel 20 and the main shaft 2. When the output assembly 7 works, the output of the servo motor 8 drives the driven wheel 20 to rotate through the transmission belt 22, the driven wheel 20 rotates to drive the main shaft 2 to rotate through the synchronous belt 9, and therefore the output function of the output assembly 7 is completed.

Referring to the output assembly 7 shown in fig. 7, fig. 8 and fig. 12, the output assembly 7 needs to drive the spindle to rotate, and the spindle rotates without reaching dynamic balance, so that unbalanced offset occurs. Specifically, the output module 7 may further include: a tensioning mechanism. This straining device includes: a tensioning bracket 23, two tensioning wheels 24, two sliders 25 and two first springs 26.

The top end of the tension bracket 23 is horizontally and fixedly provided with a mounting plate 49. Two horizontally disposed mounting slots 50 are defined in the mounting plate 49. The tension pulley 24 is vertically disposed on one side of the mounting plate 49. The two first springs 26 are horizontally installed in the two installation grooves 50, respectively. The two sliders 25 are slidably disposed in the two mounting grooves 50. One end of the first spring 26 is fixedly connected with the outermost side wall of the mounting groove 50, and the other end of the first spring 26 is fixedly connected with the side wall of the corresponding slider 25. The mounting plate 49 is also horizontally provided with a sliding groove 48 on a side thereof adjacent to the first spring 26. A link 51 extends horizontally from one side of the slider 25 near the sliding slot. One end of the connecting rod 51 is fixedly connected with the side wall of the slide block 25, and the other end of the connecting rod 51 passes through the sliding groove and is coupled with the center of the side wall of one side of the tension wheel 24. The sides of the two tension pulleys 24 close to each other are respectively in transmission connection with two side walls of the synchronous belt 9.

The tension pulley 24 can prevent the synchronous belt 9 from being loosened when the impeller is dynamically unbalanced. The tensioning support 23 is used for fixing the mounting plate 49, when the impeller is in dynamic unbalance, the first spring 26 abuts against the sliding block 25, and then the tensioning wheel 24 connected with the sliding block 25 through the connecting rod 51 is driven to abut against the synchronous belt 9, and finally the tensioning operation of the synchronous belt 9 is realized.

Referring to the adjustment assembly shown in fig. 9 and 10, the adjustment assembly may include: a piston rod 27, two connecting sleeves 28 and two inflation nozzles 29.

The piston rod 27 is horizontally mounted inside the support base 3. Two connecting sleeves 28 are horizontally and fixedly installed at two ends of the piston rod 27 and fixedly connected with the side wall of the supporting seat 3. The connecting sleeve 28 may have a hollow cavity for injecting gas. One end of the piston rod 27 extends into the chamber and the pressure of the flushing gas can act on the end of the piston rod 27.

Two inflation nozzles 29 are horizontally mounted on the outer sides of the piston rods 27, respectively. An inflation nozzle 29 communicates with the interior of the piston rod 27. A check valve 30 is fixedly mounted on the outer side of the inflation nozzle 29. The lateral displacement assembly 4 is drivingly connected to the piston rod 27. During operation of the adjustment assembly, air is flushed into the inflation nozzle 29, which acts on the piston rod 27 via the connecting sleeve 28, thereby providing an initial displacement pressure to the piston rod 27, so that the same displacement pressure is set on both sides of the piston rod 27, so that the piston rod 27 is initially in a neutral state.

That is, before the actual measurement of the dynamic balance, the pressure between the piston rod 27 and the connecting sleeves 28 at the two ends is the same, and the piston rod 27 is at the middle position, in the actual measurement of the dynamic balance, the main shaft 2 is deviated in the horizontal direction, the piston rod 27 can slide between the two connecting sleeves 28, and the distance sensor 5 detects the displacement amount, thereby detecting the dynamic unbalance amount. After the dynamic balance adjustment is completed, the piston rod 27 returns to the middle position again, the detection amount of the distance sensor 5 is zero, and the aviation impeller dynamic balance is achieved.

The piston rod 27 may be a solid rod structure, and the position of the rod structure near the end portion is in sealing fit with the connecting sleeve and can slide relatively. In addition, the piston rod 27 may have a hollow non-penetrating structure as a whole. The piston rod 27 may be provided with a spacer at the center thereof to seal the piston rod 27 so that the gas applied to both ends of the piston rod 27 does not pass through.

To prevent the air inside the piston rod 27 from being discharged after the inflation is completed, a check valve 30 may be further provided at the inflation nozzle 29.

Referring to fig. 10 and 11, the check valve 30 may include: valve barrel 31, valve top 32, triangle fixing frame 33, connecting rod 34, second spring 35 and valve ball head 36.

The valve cylinder 31 is fixedly connected with the valve top 32. The end of valve cylinder 31 remote from valve top 32 is threadedly connected to inflation nozzle 29. The middle part of the valve top 32 is provided with an inflation hole. The three fulcrums of the triangular fixing frame 33 are fixedly connected with the valve top 32. The center of the triangular fixing frame 33 and the connecting rod 34 are arranged coaxially with the valve cylinder 31. The connecting rod 34 is slidably disposed at the center of the triangular fixing frame 33. The valve ball head 36 is fixedly arranged at one end of the connecting rod 34 far away from the triangular fixed frame 33. The outer diameter of the valve ball 36 is larger than the diameter of the inflation hole. The second spring 35 is fitted over the connecting rod 34. One end of the second spring 35 is fixedly connected with the triangular fixing frame 33, and the other end of the second spring 35 is fixedly connected with one end of the connecting rod 34 close to the valve ball head 36. When the one-way valve 30 is used for inflating, gas is inflated into the valve barrel 31 through the inflation hole, during the inflation process of the one-way valve 30, the gas abuts against the valve ball 36, the second spring 35 is compressed, the connecting rod 34 drives the valve ball 36 to move back and leave the inflation hole, and the gas enters the inflation nozzle 29 after passing through the valve barrel 31; when the inflation is stopped, the second spring 35 drives the valve ball 36 to move forward, and finally the inflation hole is blocked again, so that the gas is prevented from overflowing.

Further, the check valve 30 may further include: a valve cap 37, and the valve cap 37 is detachably mounted on the valve top 32. In the impeller dynamic unbalance testing process, the piston rod 27 is shifted inside under the driving of the impeller, and gas in the one-way valve 30 can leak out in pressure change, so that the accuracy of test data is influenced, the gas can be prevented from leaking out through the valve cap 37, and the stability of the gas pressure in the piston rod 27 is ensured.

Referring to fig. 4, the horizontal displacement mechanism 13 of the balanced automatic cement filling assembly 10 may include: a guide rail 38, a slide plate 39, a rack 40, a gear 41 and a lateral displacement motor 42.

The guide rail 38 and the rack 40 are both horizontally and fixedly arranged on the base 1. The longitudinal extension direction of the guide rail 38 and the rack 40 coincides with the axial direction of the spindle 2. The slide plate 39 is slidably provided on the guide rail 38. A lateral displacement motor 42 is horizontally fixedly mounted on the top side of the slide plate 39. The output end of the transverse displacement motor 42 is fixedly connected with a vertically arranged gear 41, and the gear 41 is meshed with the rack 40. When the horizontal displacement mechanism 13 moves, the output of the transverse displacement motor 42 drives the gear 41 to rotate, the gear 41 drives the whole sliding plate 39 to move along the guide rail 38 under the coordination of the rack 40, and the sliding plate 39 drives the manipulator 14 fixedly installed on the sliding plate to move synchronously, so that conditions are provided for balancing the output of the automatic daub filling assembly 10.

Referring to the robot and its load shown in fig. 5 and 6, the glue breaking mechanism 16 may include: a fixed mount 43, a rotating motor 44 and a glue-breaking cutter 45. The mount 43 is fixedly mounted on the side wall of the cement filling head 11, the rotating motor 44 is fixedly mounted on the mount 43, the axis direction of the output shaft of the rotating motor 44 is consistent with the output direction of the cement filling head 11, the glue breaking cutter 45 can be rotatably arranged on the outer side of the output end of the cement filling head 11, and the end part of the glue breaking cutter 45 is fixedly connected with the output shaft of the rotating motor 44. The troweling mechanism 17 may include: rotating mounting bracket 46 and roller 47. The rotating mounting frame 46 is fixedly mounted at the output end of the steering mechanism 15, the axial direction of the roller 47 is perpendicular to the axial direction of the spindle 2, the roller 47 is located inside the rotating mounting frame 46, and two ends of the roller 47 are rotatably connected with side walls on two sides of the rotating mounting frame 46. When the daub filling head 11 finishes daub filling, the rotating motor 44 outputs to drive the glue breaking cutter 45 to rotate, daub remained on the daub filling head 11 is cut off, the daub filling process is finished, after the daub filling is finished, the rotating mechanism outputs, the daub filling head 11 and the trowelling mechanism 17 switch stations, the roller 47 trowels the filled daub on the impeller, and the complete filling process of the balanced daub automatic filling assembly 10 is finished.

Referring to fig. 13, based on the embodiments of the present application provided in the foregoing embodiments, an automatic impeller dynamic balance adjustment apparatus is further provided, and the present application further provides an automatic impeller dynamic balance adjustment method, where the method may include the following steps:

step S10: the impeller to be measured is arranged on the main shaft 2, and then two ends of the main shaft 2 are respectively placed on the supporting seat 3;

step S12: starting a servo motor 8, and realizing the driving operation of the rotation of the impeller through an output assembly 7;

step S14: detecting the offset of two ends of the main shaft 2 in the rotation process of the impeller through the distance sensor 5;

step S16: starting the balanced automatic daub filling assembly 10, vertically driving the manipulator 14 to move towards the impeller direction by the horizontal displacement mechanism 13, moving the daub filling head 11 to a gluing station, spraying daub out of the daub filling head 11, and driving the impeller to rotate by the servo motor 8 until the offset is zero;

step S18: and closing the servo motor 8, starting the glue breaking mechanism 16, cutting off the daub on the daub filling head 11, outputting by the steering mechanism 15, switching stations of the daub filling head 11 and the trowelling mechanism 17, starting the trowelling mechanism 17, and flattening the daub sprayed out by the daub filling head 11.

The following describes the modulation method in detail with reference to the specific structure of the automatic impeller dynamic balance adjustment apparatus.

The first step is as follows: the impeller is arranged on the main shaft 2, two ends of the main shaft 2 are respectively arranged on the supporting seat 3, the piston rod 27 is inflated manually through the inflation air nozzle 29, so that a certain initial transverse vibration force is added to two ends of the piston rod 27, and after inflation is finished, the one-way valve 30 is covered through the valve cap 37;

the second step is that: the servo motor 8 is started, the output of the servo motor 8 drives the driving wheel 21 to rotate, the driving wheel 21 drives the driven wheel 20 to rotate through the driving belt 22, the driven wheel 20 drives the main shaft 2 to synchronously rotate through the synchronous belt 9, and then the driving operation of the rotation of the impeller is realized;

the third step: the tension pulley 24 is abutted against the side wall of the synchronous belt 9 by the first spring 26, and the synchronous belt 9 is always attached to the side wall of the tension pulley 24 when rotating;

the fourth step: a distance sensor 5 positioned at the top of the supporting seat 3 detects the offset of the two ends of the main shaft 2 in the rotation process of the impeller;

the fifth step: the servo motor 8 stops outputting, the horizontal displacement mechanism 13 vertically drives the manipulator 14 to move towards the impeller direction, the clay filling head 11 moves to the gluing station, the clay filling head 11 sprays clay, and the servo motor 8 drives the impeller to slowly rotate. The rotation speed of the impeller is matched with the filling speed of the daub filling head.

And a sixth step: the output of the rotating motor 44 drives the glue breaking cutter 45 connected with the output end of the rotating motor 44 in a transmission mode to rotate, the daub on the daub filling head 11 is cut off, the output of the steering mechanism 15 is realized, the daub filling head 11 and the trowelling mechanism 17 are switched to work stations, and the daub sprayed out of the daub filling head 11 is flattened by the roller 47.

The working principle of the automatic impeller dynamic balance adjusting equipment provided by the invention is as follows:

when the practical action balance is carried out on the aviation large-scale impeller, the impeller is firstly installed in the middle of the main shaft 2, two ends of the main shaft 2 are respectively erected on the two supporting seats 3, the initial moving pressure of the transverse displacement assembly 4 is adjusted through the adjusting mechanism 6, transverse vibration force is provided for the impeller when the impeller is in dynamic unbalance, the output assembly 7 works, the servo motor 8 outputs to drive the main shaft 2 to rotate through the synchronous belt 9, two ends of the main shaft 2 rotate on the connecting ends of the transverse displacement assembly 4, the main shaft 2 drives the transverse displacement assembly 4 to deviate under the condition that the impeller is in dynamic unbalance rotating, the dynamic balance value of the impeller is measured through the distance sensor 5, balance daub is added for the impeller through the automatic balancing daub filling assembly 10, the impeller is enabled to reach a dynamic balance state, and the automatic impeller dynamic balance adjusting function is completed. Wherein, horizontal displacement mechanism 13 drives 14 horizontal displacement of manipulator, and steering mechanism 15 is used for switching clay filling head 11, disconnected gluey mechanism 16 and floating mechanism 17, and the clay filling head 11 provides the clay for impeller dynamic balance, and disconnected gluey mechanism 16 is used for cutting off remaining clay on the clay filling head 11, and floating mechanism 17 is used for floating the clay of packing on the impeller to accomplish the automatic clay that fills operation.

Before the device works, the relative height of the threaded rod 18 is adjusted according to different impeller sizes to be processed, so that the height of the supporting seat 3 relative to the mounting seat 12 is controlled, and the impellers of different sizes can be conveniently mounted.

When the output assembly 7 works, the output of the servo motor 8 drives the driven wheel 20 to rotate through the transmission belt 22, the driven wheel 20 rotates to drive the main shaft 2 to rotate through the synchronous belt 9, so that the output function of the output assembly 7 is completed, and the rotating shaft 19 is used for installing the driven wheel 20.

When impeller unbalance movement, take-up pulley 24 can prevent that hold-in range 9 from lax, and tensioning support 23 is used for installing straining device, and when impeller unbalance movement, first spring 26 supports tight slider 25, and then drives and rotate the take-up pulley 24 of being connected with slider 25 and support tight hold-in range 9, finally realizes the tensioning operation of hold-in range 9.

During operation of the adjustment assembly, the inflation nozzle 29 is manually flushed with gas, which enters the piston rod 27 through the connecting sleeve 28, thereby providing an initial displacement pressure to the piston rod 27, and the check valve 30 prevents the escape of gas from the interior of the piston rod 27 after the inflation nozzle 29 has been inflated. When the one-way valve 30 is used for inflating, air is inflated into the valve barrel 31 through the inflation hole, in the inflation process of the one-way valve 30, the air abuts against the valve ball head 36, the second spring 35 is compressed, the connecting rod 34 drives the valve ball head 36 to move backwards and leave the inflation hole, the air enters the inflation nozzle 29 after passing through the valve barrel 31, after the inflation is stopped, the valve ball head 36 is driven by the second spring 35 to move forwards, the inflation hole is blocked again finally, and the air is prevented from overflowing.

In the impeller dynamic unbalance testing process, the piston rod 27 is shifted inside under the driving of the impeller, and gas in the one-way valve 30 can leak out in pressure change, so that the accuracy of test data is influenced, the gas can be prevented from leaking out through the valve cap 37, and the stability of the gas pressure in the piston rod 27 is ensured.

When the horizontal displacement mechanism 13 moves, the output of the transverse displacement motor 42 drives the gear 41 to rotate, the gear 41 drives the whole sliding plate 39 to move along the guide rail 38 under the coordination of the rack 40, and the sliding plate 39 drives the manipulator 14 fixedly installed on the sliding plate to move synchronously, so that conditions are provided for balancing the output of the automatic daub filling assembly 10.

After the cement filling head 11 completes the cement filling, the output of the rotating motor 44 drives the glue breaking cutter 45 to rotate, so that the cement remained on the cement filling head 11 is cut off, and the cement filling process is completed. After the daub is filled, the rotating mechanism outputs the daub, the daub filling head 11 and the troweling mechanism 17 switch stations, the roller 47 trowels the filled daub on the impeller, and the complete filling process of the balanced daub automatic filling assembly 10 is completed.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An automatic impeller dynamic balance adjustment device, comprising:

the main shaft is used for mounting the impeller to be tested;

2. The automatic impeller dynamic balance adjustment apparatus of claim 1, further comprising an adjustment mechanism, the adjustment mechanism comprising: the threaded rod is arranged at the bottom of the supporting seat, a plurality of threaded holes matched with the threaded rods are formed in the bottom of the supporting seat, each threaded rod vertically extends in the direction perpendicular to the plane of the base, and the threaded rods are arranged at intervals along the axial direction perpendicular to the axial direction.

3. The automatic impeller dynamic balance adjusting device according to claim 1, wherein the output assembly further comprises a rotating shaft, a driven wheel, a driving wheel and a conveying belt, the rotating shaft is used for mounting the driven wheel, the driving wheel is arranged at an output end of the servo motor, the conveying belt is arranged between the driving wheel and the driven wheel, the synchronous belts are respectively sleeved on the driven wheel and the main shaft, the output of the servo motor drives the driven wheel to rotate through the conveying belt, and the driven wheel drives the main shaft to rotate through the synchronous belts.

4. The automatic impeller dynamic balance adjustment apparatus of claim 1, wherein the output assembly further comprises: tensioning support, two take-up pulleys, two sliders and two first springs, the top fixed mounting of tensioning support has the mounting panel, the inside of installation version is provided with the mounting groove, the take-up pulley sets up one side of installation version, first spring mounting is in the mounting groove, slider slidable ground sets up in the mounting groove, the one end of first spring with the lateral wall of installation version is fixed mutually, the other end with the slider is fixed mutually, the slider along the axial of main shaft is connected with the connecting rod, the take-up pulley with connecting rod looks coupling, two one side that the take-up pulley is close to each other respectively with synchronous belt drive is connected.

5. The automatic impeller dynamic balance adjustment apparatus of claim 1, further comprising an adjustment assembly, the adjustment assembly comprising: the piston rod, set up and be in the adapter sleeve and the air cock of aerifing at piston rod both ends, the piston rod horizontal installation be in the supporting seat, the adapter sleeve is fixed the both ends of piston rod and with the supporting seat is fixed, aerify the air cock through the adapter sleeve in the piston rod is linked together.

6. The automatic impeller dynamic balance adjustment apparatus of claim 5, wherein the adjustment assembly further comprises a one-way valve, the one-way valve comprising: valve section of thick bamboo, valve top, triangle mount, connecting rod, second spring and valve bulb, valve section of thick bamboo with valve top fixed connection forms the check valve main part, valve section of thick bamboo is kept away from the one end of valve top with aerify the air cock and connect, the valve top is provided with the inflation hole, the triangle mount with valve top fixed connection, connecting rod slidable ground sets up in the triangle mount, valve bulb fixed mounting be in the connecting rod is kept away from the one end of triangle mount, valve bulb's external diameter is greater than the aperture of inflation hole, the second spring housing is established on the connecting rod, the second spring to one end with the triangle mount is fixed, the other end with the connecting rod is close to valve bulb's one end is fixed.

7. The automatic impeller dynamic balance adjustment apparatus according to claim 1, wherein the horizontal displacement mechanism comprises: a guide rail, a sliding plate, a rack, a gear and a transverse displacement motor,

8. The automatic impeller dynamic balance adjustment apparatus of claim 1, wherein the glue breaking mechanism comprises: a fixed frame, a rotating motor and a glue-breaking cutter,

9. The automatic impeller dynamic balance adjustment device of claim 1, wherein the troweling mechanism comprises a rotating mounting frame and a roller,

the rotary mounting frame is fixedly arranged on the output end of the steering mechanism;

the axial direction of gyro wheel with the axial of main shaft is perpendicular, the both ends of gyro wheel with the both sides lateral wall of rotation mounting bracket rotates and is connected.

10. An automatic impeller dynamic balance adjustment method based on the automatic impeller dynamic balance adjustment apparatus according to any one of claims 1 to 9, comprising: