CN219573360U

CN219573360U - Dynamic balancing machine for detecting turbine impeller

Info

Publication number: CN219573360U
Application number: CN202321122024.5U
Authority: CN
Inventors: 陈刚; 应炳校; 戚伟明; 王益尧; 魏立锋; 魏泽奎; 孙锋
Original assignee: Hangzhou Sixin Industrial Pump Manufacturing Co ltd
Current assignee: Hangzhou Sixin Industrial Pump Manufacturing Co ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-08-22
Anticipated expiration: 2033-05-11

Abstract

The utility model relates to a dynamic balancing machine for detecting turbine impellers, which comprises a base, wherein a test host is fixedly arranged at the top of the base, a first supporting seat is movably arranged at the top of the base, a second supporting seat is movably arranged at the top of the base, supporting plates are fixedly arranged on the outer surfaces of the first supporting seat and the second supporting seat, an impeller body is arranged between the two supporting plates, and an adjusting mechanism is arranged in the base. This detect dynamic balancing machine of turbine impeller through setting up the mutual cooperation between recess, rotating electrical machines, two-way threaded rod and the two-way screw thread piece etc. the fan impeller pivot's that needs the test length is first roughly adjusted the distance between support seat and the support seat No. two, and when adjusting, the start-up of rotating electrical machines can drive two-way threaded rod and rotate, and two-way threaded rod's rotation will drive two-way screw thread pieces to one side opposite or be the one side removal that deviates from mutually.

Description

Dynamic balancing machine for detecting turbine impeller

Technical Field

The utility model relates to the technical field of impeller processing, in particular to a dynamic balancing machine for detecting a turbine impeller.

Background

The impeller is not only a wheel disc provided with the movable vanes, but also a generic term of the wheel disc and the movable vanes arranged on the wheel disc.

The impeller is a rotating part of a fan, when the impeller rotates around the axis, if the mass distribution of the impeller relative to the axis is uneven, unbalanced centrifugal force is generated during rotation, and the unbalanced centrifugal force acts on a bearing to cause vibration, so that noise is generated and bearing abrasion is accelerated, the performance and service life of a product are seriously influenced, therefore, the impeller is required to be subjected to dynamic balance test after processing, namely, the size and the unbalanced position of the rotating unbalance are detected, and a dynamic balancer is used, wherein the dynamic balancer is used for measuring the size and the position of the unbalance of a rotating object (rotor).

Because the position of the supporting seat of the existing balancing machine relative to the testing host is mostly fixed, on one hand, the existing balancing machine can only be suitable for fan impellers with certain specific specifications; on the other hand, when carrying out balance test to fan impeller through current balancing machine, need with fan impeller accurate hoist and mount and lay on the supporting seat, just can guarantee that fan impeller's pivot can be connected to the shaft coupling of test host computer, increased the operation degree of difficulty, restricted operating efficiency, so put forward a dynamic balancing machine that detects turbine impeller and solve above-mentioned problem.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a dynamic balancing machine for detecting turbine impellers, which has the advantages of fixing fan impellers with different sizes and the like, and solves the problem that the supporting seat of the existing balancing machine is mostly fixed relative to the position of a test host, so that the dynamic balancing machine can only be suitable for fan impellers with certain specific specifications on one hand.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the dynamic balancing machine for detecting the turbine impeller comprises a base, wherein a test host is fixedly arranged at the top of the base, a first supporting seat is movably arranged at the top of the base, a second supporting seat is movably arranged at the top of the base, supporting plates are fixedly arranged on the outer surfaces of the first supporting seat and the second supporting seat, an impeller body is arranged between the two supporting plates, an adjusting mechanism is arranged in the base, and auxiliary mechanisms are arranged on the surfaces of the two supporting plates;

the adjusting mechanism comprises a groove, the inside of the base is provided with the groove, the left inner wall of the groove is fixedly provided with a rotating motor, the output shaft of the rotating motor is fixedly provided with a bidirectional threaded rod, and the outer surface of the bidirectional threaded rod is in threaded connection with two bidirectional threaded blocks;

the two auxiliary mechanisms comprise supporting rods with the number of two, the supporting rods are fixedly installed at the tops of the supporting plates, the two groups of supporting rods are movably installed at one ends, far away from the supporting plates, of the supporting rods, auxiliary wheels are movably installed at the ends, far away from the supporting plates, of the supporting plates, and pulleys are rotatably installed at the tops of the supporting plates.

Preferably, the top of base has seted up the spout, and the equal fixed mounting in top of two-way screw thread pieces has the connecting rod.

Preferably, the tops of the two connecting rods respectively penetrate through the sliding groove and are fixedly connected with the first supporting seat and the second supporting seat.

Preferably, both of said pulleys are located between two auxiliary wheels.

Preferably, the outer surfaces of the two groups of auxiliary wheels are contacted with the outer surface of the impeller body, and the outer surfaces of the two pulleys are contacted with the surface of the impeller body.

Preferably, one end of the bidirectional threaded rod is connected with the right inner wall of the groove through a bearing seat, and a coupler is arranged on the outer surface of the test host.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

1. this detect dynamic balancing machine of turbine impeller, through setting up the recess, the rotating electrical machines, mutually support between two-way threaded rod and the two-way screw thread piece etc. the fan impeller pivot's that tests length to the first supporting seat of needs earlier is roughly adjusted with the distance between the second supporting seat, when adjusting, the start-up of rotating electrical machines can drive two-way threaded rod and rotate, and two-way threaded rod's rotation will drive two-way screw thread pieces to the relative one side or be the one side removal that deviates from mutually, two-way screw thread piece's removal passes through the distance between connecting rod regulation first supporting seat and the second supporting seat, can realize the coupling joint of impeller body pivot and test host computer.

2. This detect dynamic balancing machine of turbine impeller through setting up the cooperation between bracing piece, auxiliary wheel and the pulley etc., later places the impeller body on two pulleys, and the one end of impeller body is on same horizontal plane with the shaft coupling, and is connected with the shaft coupling, later can rotate on the surface of auxiliary wheel and pulley in the impeller body test process, guarantees the stability when this detects of impeller.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a front cross-sectional view of the structure of the present utility model;

FIG. 3 is a side view of a partial structure of the present utility model;

fig. 4 is an enlarged view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a base; 2. testing a host; 3. a first supporting seat; 4. a second supporting seat; 5. a support plate; 6. an impeller body; 7. an adjusting mechanism; 701. a groove; 702. a rotating electric machine; 703. a two-way threaded rod; 704. a bidirectional screw block; 8. an auxiliary mechanism; 801. a support rod; 802. an auxiliary wheel; 803. and (3) a pulley.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a dynamic balancing machine for detecting an impeller of a turbine in this embodiment includes a base 1, a test host 2 is fixedly installed at the top of the base 1, a first supporting seat 3 is movably installed at the top of the base 1, a second supporting seat 4 is movably installed at the top of the base 1, supporting plates 5 are fixedly installed on the outer surfaces of the first supporting seat 3 and the second supporting seat 4, an impeller body 6 is placed between the two supporting plates 5, an adjusting mechanism 7 is arranged in the base 1, auxiliary mechanisms 8 are arranged on the surfaces of the two supporting plates 5, and the main performance of the dynamic balancing machine is two comprehensive indexes of the minimum achievable residual unbalance and the dynamic balancing machine reduction rate, wherein the former is the minimum value of the residual unbalance achieved by a rotor by the balancing machine, and is the index of the highest balancing capacity of the balancing machine; the latter is the ratio of the unbalance amount reduced after one correction to the initial unbalance amount, and the impeller body 6 is detected by a dynamic balancing machine.

The adjustment mechanism 7 includes recess 701, the inside of base 1 is seted up flutedly 701, the left inner wall fixed mounting of recess 701 has rotating electrical machines 702, rotating electrical machines 702's output shaft department fixed mounting has two-way threaded rods 703, two-way threaded rods 703's surface threaded connection has a quantity to be two-way screw thread pieces 704, the spout has been seted up at the top of base 1, and the equal fixed mounting in top of two-way screw thread pieces 704 has the connecting rod, the spout is run through respectively at the top of two connecting rods and is No. 3 and No. 4 fixed connection of supporting seat, can adjust the distance between No. 3 and No. 4 supporting seats of supporting seat under rotating electrical machines 702's start-up, adapt to the impeller body 6 of different specifications.

Two complementary unit 8 all include the bracing piece 801 that is two in quantity, and the equal fixed mounting in top of two backup pads 5 has bracing piece 801, and the equal movable mounting in one end that backup pad 5 was kept away from to two sets of bracing pieces 801 has auxiliary wheel 802, and pulley 803 is all installed in the top of two backup pads 5 rotation, and the one end and the shaft coupling of impeller body 6 are on same horizontal plane, and are connected with the shaft coupling, later can rotate on the surface of auxiliary wheel 802 and pulley 803 at impeller body 6 test in-process, guarantees the stability when impeller body 6 detects.

In practice, the method is carried out according to the following steps:

1) Firstly, the device is connected with an external power supply, and then the distance between the first support seat 3 and the second support seat 4 is roughly adjusted by starting the rotating motor 702;

2) Then placing the impeller body 6 on the two support plates 5, and connecting one end of the impeller body 6 with a coupling;

3) The impeller body 6 can rotate on the outer surfaces of the auxiliary wheel 802 and the pulley 803 in the testing process, so that the stability of the impeller body 6 during detection is ensured.

In summary, in this dynamic balancing machine for detecting a turbine impeller, through setting up the mutual cooperation between recess 701, rotating electrical machines 702, bi-directional threaded rod 703 and bi-directional threaded block 704, the length of fan impeller pivot that needs to test is adjusted roughly to the distance between support seat 3 and support seat 4 No. two earlier, when adjusting, the start-up of rotating electrical machines 702 can drive bi-directional threaded rod 703 and rotate, and the rotation of bi-directional threaded rod 703 will drive two bi-directional threaded blocks 704 to move to opposite one side or the one side that deviates from mutually, the removal of bi-directional threaded block 704 passes through the distance between support seat 3 and support seat 4 is adjusted to the connecting rod, can realize impeller body 6 pivot and test host computer 2's coupling connection.

And through setting up the cooperation between bracing piece 801, auxiliary wheel 802 and the pulley 803 etc., then place impeller body 6 on two pulleys 803, and the one end of impeller body 6 is on same horizontal plane with the shaft coupling, and is connected with the shaft coupling, later can rotate on the surface of auxiliary wheel 802 and pulley 803 in the test of impeller body 6, guarantees the stability when impeller body 6 detects.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. A dynamic balancing machine for detecting turbine wheels, comprising a base (1), characterized in that: the testing device comprises a base (1), wherein a testing host machine (2) is fixedly arranged at the top of the base (1), a first supporting seat (3) is movably arranged at the top of the base (1), a second supporting seat (4) is movably arranged at the top of the base (1), supporting plates (5) are fixedly arranged on the outer surfaces of the first supporting seat (3) and the second supporting seat (4), an impeller body (6) is arranged between the two supporting plates (5), an adjusting mechanism (7) is arranged in the base (1), and auxiliary mechanisms (8) are arranged on the surfaces of the two supporting plates (5);

the adjusting mechanism (7) comprises a groove (701), the groove (701) is formed in the base (1), a rotating motor (702) is fixedly arranged on the left inner wall of the groove (701), a bidirectional threaded rod (703) is fixedly arranged at the output shaft of the rotating motor (702), and two bidirectional threaded blocks (704) are connected with the outer surface of the bidirectional threaded rod (703) in a threaded manner;

two auxiliary mechanism (8) are all including bracing piece (801) that are two in quantity, two the top of backup pad (5) is equal fixed mounting has bracing piece (801), and two sets of the equal movable mounting of one end that backup pad (5) were kept away from to bracing piece (801) has auxiliary wheel (802), two the top of backup pad (5) is all rotated and is installed pulley (803).

2. A dynamic balancing machine for detecting a turbine wheel according to claim 1, wherein: the top of base (1) has seted up the spout, and the top of two-way screw thread pieces (704) is all fixed mounting has the connecting rod.

3. A dynamic balancing machine for detecting turbine wheels as claimed in claim 2, wherein: the tops of the two connecting rods penetrate through the sliding grooves respectively and are fixedly connected with the first supporting seat (3) and the second supporting seat (4).

4. A dynamic balancing machine for detecting a turbine wheel according to claim 1, wherein: both of the pulleys (803) are located between two auxiliary wheels (802).

5. A dynamic balancing machine for detecting a turbine wheel according to claim 1, wherein: the outer surfaces of the two groups of auxiliary wheels (802) are contacted with the outer surface of the impeller body (6), and the outer surfaces of the two pulleys (803) are contacted with the surface of the impeller body (6).

6. A dynamic balancing machine for detecting a turbine wheel according to claim 1, wherein: one end of the bidirectional threaded rod (703) is connected with the right inner wall of the groove (701) through a bearing seat, and a coupler is arranged on the outer surface of the test host machine (2).