CN216546796U

CN216546796U - Rotor dynamic balance test device

Info

Publication number: CN216546796U
Application number: CN202123233285.8U
Authority: CN
Inventors: 范瑶; 朱清利
Original assignee: Nanjing Huahang Wing Aircraft Technology Co ltd
Current assignee: Nanjing Huahang Wing Aircraft Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-17
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a rotor dynamic balance test device, which comprises a base, wherein support columns are fixedly arranged at four corners of the top end of the base, the top ends of the four support columns are fixedly connected with a workbench, a limiting sliding sleeve is fixedly penetrated through the middle part of the top end of the workbench, a motor is fixedly arranged at the middle part of the top end of the base, a hydraulic rod is fixedly connected with the output end of the motor, one end of the hydraulic rod penetrates through the inner wall of the limiting sliding sleeve and is provided with a rotor body in a threaded manner, and two adjusting seats are arranged at one side of the limiting sliding sleeve. Thereby reach and carry out the not detection of co-altitude to the rotor body.

Description

Rotor dynamic balance test device

Technical Field

The utility model relates to a dynamic balance test device, in particular to a rotor wing dynamic balance test device.

Background

Because the design has multiple factors such as asymmetric geometric shapes and the like, when the rotor rotates, centrifugal inertia force generated by each tiny mass point on the rotor cannot be mutually counteracted, and the centrifugal inertia force acts on the device and the base thereof to cause vibration, generate noise and cause destructive accidents in serious cases. For this reason, it is necessary to balance the rotor to an allowable level of balance accuracy or to reduce the amplitude of mechanical vibration generated thereby within an allowable range, and a rotor dynamic balance test device is required when performing a dynamic balance test on the rotor.

However, the existing rotor dynamic balance test device has a poor structure and also has certain defects:

the existing dynamic balance test can only carry out multiple times of detection or one time of detection on the rotor wing at the same height during detection, so that the detection efficiency is not very high, and errors can exist; and the device can produce certain rocking because the rotor rotates when the operation, leads to the device too unstable to influence experimental efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotor wing dynamic balance test device, which solves the problem that the conventional dynamic balance test in the background art can only carry out detection on a rotor wing at the same height for multiple times or once during detection and the device is unstable due to certain shaking generated by the rotation of the rotor wing during operation.

In order to achieve the purpose, the utility model provides the following technical scheme: a rotor wing dynamic balance test device comprises a base, wherein support columns are fixedly arranged at four corners of the top end of the base, four work tables are fixedly connected to the top ends of the support columns, a limiting sliding sleeve is fixedly penetrated through the middle part of the top end of each work table, a motor is fixedly arranged at the middle part of the top end of the base, a hydraulic rod is fixedly connected to the output end of the motor, one end of the hydraulic rod penetrates through the inner wall of the limiting sliding sleeve and is provided with a rotor wing body in a threaded manner, two adjusting seats are arranged at one side of the limiting sliding sleeve, a sliding groove is formed in one side, adjacent to the two adjusting seats, of each sliding groove, a sliding block is slidably connected to the inner wall of each sliding groove, a connecting block is fixedly connected to one side, adjacent to the two sliding blocks, two connecting rods are fixedly connected to the front side of the connecting block, an auxiliary sleeve is fixedly connected to one end of each connecting rod, and the inner wall of the auxiliary sleeve is fixedly connected with the outer wall of the limiting sliding sleeve, two the equal fixedly connected with in bottom of connecting block adjusts the pole, two the bottom of adjusting the pole all with the top fixed connection of workstation, the equal fixed mounting in both sides of workstation has the extension plate.

As a preferred technical scheme of the utility model, the back of the top end of the workbench is fixedly connected with an extension rod, the front of the extension rod is uniformly provided with a plurality of phase sensors, and the position of the extension rod corresponds to the position of the limiting sliding sleeve.

As a preferred technical scheme of the present invention, a main frame is disposed on one side of the extension rod, the bottom end of the main frame is fixedly connected to the top end of the workbench, and the plurality of extension rods are electrically connected to the main frame through wires, respectively.

As a preferable technical scheme of the utility model, the bottom parts of the two extension plates are respectively provided with a balance seat, and both sides of the bottom ends of the two balance seats are respectively and fixedly provided with a fixed column.

As a preferred technical scheme of the present invention, the top ends of the two balancing seats are both provided with a counterweight groove, one side of each of the two balancing seats, which is not adjacent to the balancing seat, is provided with a through groove, one end of each of the two through grooves is mutually penetrated through with one end of the adjacent counterweight groove, and the inner walls of the two counterweight grooves are both slidably connected with a plurality of counterweight blocks.

As a preferred technical scheme of the utility model, one end of each of the plurality of balancing weights is fixedly connected with an auxiliary block, the outer wall of each of the plurality of auxiliary blocks is slidably connected with the inner wall of the adjacent through groove, one end of each of the plurality of auxiliary blocks is provided with a threaded opening, the inner wall of each of the threaded openings is in threaded connection with a limiting bolt, and the back of each of the plurality of limiting bolts is extruded with one side of the adjacent balancing seat.

As a preferred technical scheme of the utility model, the outer wall of the workbench is fixedly provided with a control button, and the motor is electrically connected with an external power supply through the control button.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the rotor dynamic balance test device, the limiting sliding sleeve, the motor, the hydraulic rod and the phase sensor are arranged to be matched with the host, the rotor body is arranged on the hydraulic rod, the limiting sliding sleeve is arranged to achieve the effect of stabilizing the motor, the connecting rod and the auxiliary sleeve are driven to move by adjusting the connecting block to adjust the limiting sliding sleeve, so that the height of the hydraulic rod is limited, the rotor body is detected at different heights, the rotating data of the rotor body is measured by the phase sensors and then transmitted to the host, and the data is compared by the host, so that the effects of detecting the rotor dynamic balance for multiple times and comparing the detection results are achieved, and the detection accuracy is improved to a certain extent.

2. According to the rotor dynamic balance test device, the balance seat, the balancing weight, the auxiliary block and the limiting bolts are matched, when the device is unstable during operation, the auxiliary block is adjusted to drive the limiting bolts to slide in the balance seat, the effect of balancing and adjusting a workbench is achieved through the weight matching of the balancing weight, the limiting bolt and the auxiliary block are matched to limit the balancing weight, the balancing weight is prevented from being displaced under the vibration condition, the balance is prevented from being influenced, the stability of the device is improved to a certain extent, and the effect of rapidly balancing the device is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a limiting sliding sleeve, a motor and a rotor body according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

fig. 4 is a schematic structural view of the balancing seat, the balancing weight and the limiting bolt of the present invention.

In the figure: 1. a base; 2. a work table; 3. a limiting sliding sleeve; 4. a motor; 5. a hydraulic lever; 6. a rotor body; 7. an extension pole; 8. a phase sensor; 9. a host; 10. an adjusting seat; 11. a slider; 12. connecting blocks; 13. adjusting a rod; 14. a connecting rod; 15. an auxiliary sleeve; 16. an extension plate; 17. a balance seat; 18. fixing a column; 19. a balancing weight; 20. an auxiliary block; 21. and a limiting bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution of a rotor dynamic balance testing apparatus:

the first embodiment is as follows:

as shown in figures 1-3, a rotor dynamic balance test device comprises a base 1, wherein support columns are fixedly arranged at four corners of the top end of the base 1, a workbench 2 is fixedly connected to the top ends of the four support columns, a limiting sliding sleeve 3 is fixedly penetrated through the middle part of the top end of the workbench 2, a motor 4 is fixedly arranged at the middle part of the top end of the base 1, a hydraulic rod 5 is fixedly connected to the output end of the motor 4, one end of the hydraulic rod 5 penetrates through the inner wall of the limiting sliding sleeve 3 and is provided with a rotor body 6 in a threaded manner, two adjusting seats 10 are arranged at one side of the limiting sliding sleeve 3, sliding grooves are respectively arranged at one adjacent sides of the two adjusting seats 10, sliding blocks 11 are respectively and slidably connected to the inner walls of the two sliding grooves, a connecting block 12 is fixedly connected to one adjacent side of the two sliding blocks 11, two connecting rods 14 are fixedly connected to the front side of the connecting block 12, and an auxiliary sleeve 15 is fixedly connected to one end of the two connecting rods 14, the inner wall of the auxiliary sleeve 15 is fixedly connected with the outer wall of the limiting sliding sleeve 3, the bottom ends of the two connecting blocks 12 are fixedly connected with adjusting rods 13, the bottom ends of the two adjusting rods 13 are fixedly connected with the top end of the workbench 2, extension plates 16 are fixedly mounted on both sides of the workbench 2, the rotor body 6 is mounted on the hydraulic rod 5 by arranging the limiting sliding sleeve 3, the motor 4, the hydraulic rod 5 and the phase sensor 8 to be matched with the host machine 9, the arranged limiting sliding sleeve 3 has the effect of stabilizing the motor 4, the connecting rod 14 and the auxiliary sleeve 15 are driven by adjusting the connecting blocks 12 to move to adjust the limiting sliding sleeve 3, so as to limit the height of the hydraulic rod 5, thereby achieving the purpose of detecting different heights of the rotor body 6, the rotating data of the rotor body 6 are transmitted to the host machine 9 after being measured by the plurality of phase sensors 8, and the data are compared by the host machine 9, thereby reach and carry out a lot of to rotor dynamic balance and detect and can compare the effect of testing result, the accuracy nature of detection has been increased to a certain extent, adjust the setting of pole 13 and play certain supporting effect to connecting block 12, and have certain frictional force between slider 11 and the spout, adjust pole 13 and support the cooperation down, can drive connecting block 12 remain stable, the back fixedly connected with extension rod 7 on 2 tops of workstation, the front of extension rod 7 evenly is equipped with a plurality of phase sensor 8, the position of extension rod 7 is corresponding with spacing sliding sleeve 3's position, extension rod 7 sets up the effect that plays fixed mounting to phase sensor 8, one side of extension rod 7 is equipped with host computer 9, the bottom of host computer 9 and the top fixed connection of workstation 2, a plurality of extension rods 7 are respectively through wire and host computer 9 electric connection.

Example two:

on the basis of the first embodiment, as shown in fig. 1 and 4, the bottom of each of the two extension plates 16 is provided with a balance seat 17, two sides of the bottom end of each of the two balance seats 17 are fixedly provided with a fixing column 18, the fixing columns 18 are arranged to play a role in stably placing the base 1 and the workbench 2, the top ends of the two balance seats 17 are respectively provided with a counterweight groove, one sides of the two balance seats 17 which are not adjacent are respectively provided with a through groove, one end of each of the two through grooves is mutually penetrated with one end of the adjacent counterweight groove, the inner walls of the two counterweight grooves are respectively connected with a plurality of counterweight blocks 19 in a sliding manner, through the matching of the balance seats 17, the counterweight blocks 19, the auxiliary blocks 20 and the limiting bolts 21, when the device is unstable during operation, the auxiliary blocks 20 are adjusted to drive the plurality of limiting bolts 21 to slide in the balance seats 17, and through the weight matching of the counterweight blocks 19, the effect of balancing and adjusting the workbench 2 is achieved, spacing bolt 21 and supplementary piece 20's of setting cooperation can play limiting displacement to balancing weight 19, it influences the balance to have avoided balancing weight 19 to take place the displacement under the vibrations condition, the stability of device has been increased to a certain extent, play and carry out quick balanced effect to the device, the equal fixedly connected with supplementary piece 20 of the one end of a plurality of balancing weights 19, the outer wall of a plurality of supplementary pieces 20 all with adjacent inner wall sliding connection who runs through the groove, the screw thread mouth has all been seted up to the one end of a plurality of supplementary pieces 20, the equal threaded connection of inner wall of a plurality of screw thread mouths has spacing bolt 21, the back of a plurality of spacing bolts 21 all extrudees with one side of adjacent balanced seat 17 mutually.

The working principle is as follows: when in use, the rotor body 6 is in threaded connection with the hydraulic rod 5, the hydraulic rod 5 is telescopically arranged, the sliding block 11 in the adjusting seat 10 drives the connecting block 12 to slide and simultaneously drives the connecting rod 14 and the auxiliary sleeve 15 to slide, so that the auxiliary sleeve 15 drives the limit sliding sleeve 3 to adjust the height, the rotor body 6 is arranged on the hydraulic rod 5, after the limit sliding sleeve 3 is adjusted to the required height, the switch of the motor 4 is turned on, the motor 4 operates to drive the hydraulic rod 5 and the rotor body 6 to rotate, the phase sensor 8 arranged on the extension rod 7 measures the rotation data of the rotor body 6 and transmits the rotation data to the host 9, similarly, the connecting block 12 is adjusted to different heights again, so that the hydraulic rod 5 is synchronously adjusted according to the height of the limit sliding sleeve 3, and different phase sensors 8 can be driven to detect the rotor body 6, transmit to host computer 9 on, rethread host computer 9 is compared data, it compares to reach accurate data many times, when workstation 2 takes place the unstable condition when moving, sliding weight 19 in the counter weight inslot that sets up on balanced seat 17, make workstation 2 stable back through the weight adjustment of counter weight 19, at the spacing bolt 21 of 20 internal rotations of auxiliary block, make the back of spacing bolt 21 extrude with one side of balanced seat 17 each other, reach and carry out spacing effect to counter weight 19.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rotor dynamic balance test device, includes base (1), its characterized in that: the four corners of the top end of the base (1) are fixedly provided with support columns, the top ends of the four support columns are fixedly connected with a workbench (2), the middle part of the top end of the workbench (2) is fixedly penetrated with a limiting sliding sleeve (3), the middle part of the top end of the base (1) is fixedly provided with a motor (4), the output end of the motor (4) is fixedly connected with a hydraulic rod (5), one end of the hydraulic rod (5) penetrates through the inner wall of the limiting sliding sleeve (3) and is provided with a rotor body (6) in a threaded manner, one side of the limiting sliding sleeve (3) is provided with two adjusting seats (10), one adjacent side of the two adjusting seats (10) is provided with a sliding groove, the inner walls of the two sliding grooves are respectively and slidably connected with a sliding block (11), one adjacent side of the two sliding blocks (11) is fixedly connected with a connecting block (12), and the front of the connecting block (12) is fixedly connected with two connecting rods (14), two the supplementary cover of one end fixedly connected with (15) of connecting rod (14), the inner wall of supplementary cover (15) and the outer wall fixed connection of spacing sliding sleeve (3), two the equal fixedly connected with in bottom of connecting block (12) adjusts pole (13), two the bottom of adjusting pole (13) all with the top fixed connection of workstation (2), the equal fixed mounting in both sides of workstation (2) has extension plate (16).

2. A rotor dynamic balance test device according to claim 1, wherein: the back fixedly connected with extension rod (7) on workstation (2) top, the front of extension rod (7) evenly is equipped with a plurality of phase sensor (8), the position of extension rod (7) and the position of spacing sliding sleeve (3) are corresponding.

3. A rotor dynamic balance test device according to claim 2, wherein: one side of extension rod (7) is equipped with host computer (9), the bottom of host computer (9) and the top fixed connection of workstation (2), it is a plurality of extension rod (7) are respectively through wire and host computer (9) electric connection.

4. A rotor dynamic balance test device according to claim 1, wherein: the bottom of two extension plates (16) all is equipped with balanced seat (17), two the both sides of balanced seat (17) bottom are all fixed mounting have fixed column (18).

5. A rotor dynamic balance test device according to claim 4, wherein: the top of two balanced seat (17) has all seted up the counter weight groove, two balanced seat (17) nonadjacent one side has all seted up and has run through the groove, two the one end that runs through the groove all runs through each other with the one end in adjacent counter weight groove, two the equal sliding connection of inner wall in counter weight groove has a plurality of balancing weights (19).

6. A rotor dynamic balance test device according to claim 5, wherein: a plurality of equal fixedly connected with of one end of balancing weight (19) assists piece (20), and is a plurality of the outer wall of assisting piece (20) all with adjacent inner wall sliding connection who runs through the groove, it is a plurality of screw thread mouth has all been seted up to the one end of assisting piece (20), and is a plurality of the equal threaded connection of inner wall of screw thread mouth has stop bolt (21), and is a plurality of the back of stop bolt (21) all extrudees with one side of adjacent balanced seat (17) mutually.

7. A rotor dynamic balance test device according to claim 1, wherein: the outer wall of the workbench (2) is fixedly provided with a control button, and the motor (4) is electrically connected with an external power supply through the control button.