CN216477969U

CN216477969U - Simple static balance test rack for rotating impeller

Info

Publication number: CN216477969U
Application number: CN202120821669.2U
Authority: CN
Inventors: 刘立鹏; 陈永永; 令尕林
Original assignee: Lanzhou Jiangjunshan Machinery Factory
Current assignee: Lanzhou Jiangjunshan Machinery Factory
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-05-10
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to a device for a large-scale impeller static balance test, in particular to a simple static balance test frame for a rotating impeller, which comprises a base, wherein supporting devices are symmetrically connected to the base, each supporting device comprises an upright post, the bottom end of each upright post is connected to the base, the upper end of each upright post is connected with a supporting table, two U-shaped supports are connected to the supporting table, rotating wheels are rotatably connected to the U-shaped supports, the two rotating wheels are arranged in parallel, the rotating centers of the two rotating wheels are arranged in parallel, the two supporting devices are symmetrically arranged on the base, mandrels are arranged on the rotating wheels, and connecting rings are arranged in the middle of the mandrels; the structure is simple, the use is convenient, and the connection and the disassembly of the impeller are convenient; the applicability is strong, and the static balance test device can be applied to static balance tests of various impellers; multiple mandrels do not need to be manufactured repeatedly, so that the economic cost is saved; the position of the mandrel is adjustable, so that the center of gravity of the whole body is centered, and the test accuracy is ensured; the height positions of two ends of the mandrel are adjustable, so that the integral leveling is facilitated.

Description

Simple static balance test rack for rotating impeller

Technical Field

The utility model relates to a device for a large impeller static balance test, in particular to a simple static balance test frame for a rotating impeller.

Background

The impeller of large-scale fan, turbine all adopts steel construction welding to constitute, has certain deviation in process of production, consequently need carry out various experiments after the production shaping in order to verify whether qualified product, should find the problem and make corresponding repairment if unqualified, wherein static balance test is an important inspection tool, and test device among the prior art has following problem:

firstly, the static balance test device is only suitable for static balance tests of small impellers and has poor applicability;

two ends of the mandrel are connected with the base in a bearing and bearing seat connecting mode, and the impeller is inconvenient to connect and disassemble;

thirdly, if the same device is used for testing various impellers, a plurality of mandrels need to be manufactured, so that the waste is large and the economic benefit is low;

fourthly, the position of the center of gravity is inconvenient to adjust, so that the stress on one side of the mandrel is large easily, and unnecessary errors are caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model aims to provide a simple static balance test rack for a rotary impeller, which solves the problems in the prior art.

The technical scheme adopted by the utility model is as follows:

the utility model provides a simple and easy static balance test of rotatory impeller, includes the base, the symmetric connection has strutting arrangement on the base, strutting arrangement include the stand, the stand bottom is connected on the base, the stand upper end is connected with a supporting bench, is connected with two U type supports on the supporting bench, U type support internal rotation is connected with the runner, two runners set up side by side, the rotation center parallel arrangement of two runners, strutting arrangement be equipped with two, two strutting arrangement symmetries set up on the base, are provided with the dabber on the runner, the middle part of dabber is provided with the go-between.

Further U type support in the symmetry be provided with the draw-in groove, draw-in groove opening direction up, runner both ends fixedly connected with bearing, the runner passes through the bearing joint at both ends in the draw-in groove.

Furthermore, a dovetail groove is formed in the supporting table, the dovetail groove is perpendicular to the central axis direction of the mandrel, and the bottom of the U-shaped support is connected into the dovetail groove in a sliding mode.

The support plate is fixedly connected to one side of the stand column, the lead screw is connected to the support plate through a bearing in a rotating mode, the lead screw penetrates through the support plate and the two U-shaped supports, the lead screw is in threaded connection with the two U-shaped supports, and the rotating directions of threads of the lead screw connected with the two U-shaped supports are opposite.

Further the inner side of the supporting plate is provided with a nut, and the nut is in threaded connection with the screw rod.

Further, a handle is arranged on the outer side of the supporting plate and fixedly connected with the screw rod.

And further, the diameter of the thread at the joint of the screw rod and the nut is larger than that of the thread at the joint of the screw rod and the U-shaped support.

The utility model has the beneficial effects that:

1. the structure is simple, the use is convenient, and the connection and the disassembly of the impeller are convenient;

2. the applicability is strong, and the static balance test device can be applied to static balance tests of various impellers;

3. a plurality of mandrels do not need to be repeatedly manufactured, so that the economic cost is saved;

4. the position of the mandrel is adjustable, so that the center of gravity of the whole body is centered, and the test accuracy is ensured;

5. the height positions of two ends of the mandrel are adjustable, so that the integral leveling is facilitated;

6. each spare part is easily processed and is changed, promotes whole life.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the utility model A-A of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional U-shaped support of FIG. 1 according to the present invention;

FIG. 4 is a schematic left side view of the present invention;

FIG. 5 is a schematic cross-sectional view of the utility model B-B of FIG. 4.

In the figure: 1. the novel bearing comprises a base, 2 parts of a supporting device, 3 parts of an upright post, 4 parts of a supporting table, 401 parts of a dovetail groove, 5 parts of a U-shaped support, 501 parts of a clamping groove, 6 parts of a rotating wheel, 7 parts of a mandrel, 8 parts of a connecting ring, 9 parts of a lead screw, 10 parts of a supporting plate, 11 parts of a nut and 12 parts of a handle.

Detailed Description

The utility model is described in detail below with reference to the following figures and detailed description:

a simple static balance test rack for a rotary impeller comprises a base 1, wherein supporting devices 2 are symmetrically connected to the base, each supporting device 2 comprises an upright post 3, the bottom end of each upright post 3 is connected to the base, the upper end of each upright post 3 is connected with a supporting table 4, two U-shaped supports 5 are connected to the supporting tables 4, rotating wheels 6 are rotatably connected to the U-shaped supports 5, the two rotating wheels 6 are arranged side by side, the rotating centers of the two rotating wheels 6 are arranged in parallel, the two supporting devices 2 are symmetrically arranged on the base, mandrels 7 are arranged on the rotating wheels 6, connecting rings 8 are arranged in the middle of the mandrels 7, the mandrels 7 are supported through the positions between the two rotating wheels 6, the connecting and detaching work of the mandrels 7 is facilitated, the positions of the mandrels 7 can be adjusted leftwards and rightwards according to actual conditions, the overall gravity center position is changed, and the impeller is connected through the connecting rings 8, make things convenient for the connection and the dismantlement of impeller, the impeller of equidimension not is simultaneously all can be connected on go-between 8, need not to make and has more to adapt to the impeller of equidimension not with dabber 7, practices thrift economic cost.

Further U type support 5 in the symmetry be provided with draw-in groove 501, draw-in groove 501 opening direction up, 6 both ends fixedly connected with bearings of runner, the bearing joint at runner 6 through both ends is in draw-in groove 501, can high-speed joint and dismantle gyro wheel 6 through draw-in groove 501 to change after the gyro wheel 6 wearing and tearing of being convenient for, or through with the interval of changing between two gyro wheels 6 with the gyro wheel 6 of unidimensional.

Further, a dovetail groove 401 is arranged on the supporting table 4, the direction of the dovetail groove 401 is perpendicular to the central axis direction of the mandrel 7, the bottom of the U-shaped support 5 is connected in the dovetail groove 401 in a sliding mode, and the distance between the two rollers 6 is adjusted in a sliding connection mode to meet working requirements under different conditions.

Still further include the

lead screw

9, 3 one side fixedly connected with backup pad 10 of stand, lead screw 9 passes through the bearing and rotates the connection on backup pad 10 board, lead screw 9 runs through backup pad 10 and two U type supports 5, lead screw 9 and two U type supports 5 threaded connection, the screw rotation direction that lead screw 9 and two U type supports 5 are connected is opposite, can be two U type supports 5 in opposite directions or reverse motion through rotating lead screw 9, and then realize the purpose of the accurate adjustment of interval between gyro wheel 6.

Further the backup pad 10 inboard be provided with nut 11, nut 11 and lead screw 9 threaded connection increase nut 11, through nut 11 and backup pad 10 cooperation to the lead screw 9 lock, prevent its free rotation, when the dabber 7 that has the impeller falls on gyro wheel 6, if receive the influence of gravity, the automatic reverse slip of U type support 5, lead screw 9 can rotate by oneself this moment, forms the ascending spacing of lead screw 9 rotation direction through nut 11, and then reaches the dead purpose of lock.

Further, a handle 12 is arranged on the outer side of the supporting plate 10, the handle 12 is fixedly connected with the screw rod 9, and the screw rod 9 is rotated by the handle, so that the screw rod is convenient to use in actual operation.

The thread diameter of the joint of the screw rod 9 and the nut 11 is larger than the thread diameter of the joint of the screw rod 9 and the U-shaped support 5, so that the integral installation of the utility model is facilitated, and particularly, the installation of the nut 11 is facilitated.

When the device is used, the device is placed on a flat ground, the impeller is fixedly connected to the connecting ring 8 through the bolt, the mandrel 7 with the impeller is placed on the roller 6, the left and right positions of the mandrel 7 are adjusted, the integral gravity center of the mandrel 7 is basically ensured to be positioned at the symmetrical center of the two supporting devices 2, the leveling instrument is used for calibrating whether the mandrel 7 is horizontal or not, if the mandrel 7 is not horizontal, any nut 11 is sent, the screw rod 9 is driven to rotate through rotating the handle 12, the distance between the roller 6 is changed, the height of the mandrel 7 at one end is further increased or reduced, and the nut 11 is screwed and locked after the integral leveling is adjusted, so that the test can be started.

Claims

1. The utility model provides a simple and easy static balance test frame of rotatory impeller which characterized in that: including base (1), symmetrical connection has strutting arrangement (2) on the base, strutting arrangement (2) including stand (3), stand (3) bottom is connected on the base, stand (3) upper end is connected with brace table (4), is connected with two U type supports (5) on brace table (4), U type support (5) internal rotation is connected with runner (6), two runner (6) set up side by side, the rotation center parallel arrangement of two runner (6), strutting arrangement (2) be equipped with two, two strutting arrangement (2) symmetry set up on the base, be provided with dabber (7) on runner (6), the middle part of dabber (7) is provided with go-between (8).

2. The simple static balance test rack for the rotary impeller according to claim 1, characterized in that: u type support (5) in the symmetry be provided with draw-in groove (501), draw-in groove (501) opening direction up, runner (6) both ends fixedly connected with bearing, runner (6) through the bearing joint at both ends in draw-in groove (501).

3. The simple static balance test rack for the rotary impeller according to claim 1 or 2, characterized in that: the supporting table (4) is provided with a dovetail groove (401), the direction of the dovetail groove (401) is perpendicular to the central axis direction of the mandrel (7), and the bottom of the U-shaped support (5) is connected in the dovetail groove (401) in a sliding mode.

4. The simple static balance test rack for the rotary impeller according to claim 3, characterized in that: still include lead screw (9), stand (3) one side fixedly connected with backup pad (10), lead screw (9) rotate through the bearing and connect in backup pad (10), lead screw (9) run through backup pad (10) and two U type supports (5), lead screw (9) and two U type supports (5) threaded connection, the screw thread direction of rotation that lead screw (9) and two U type supports (5) are connected is opposite.

5. The simple static balance test rack for the rotary impeller according to claim 4, characterized in that: the inner side of the supporting plate (10) is provided with a nut (11), and the nut (11) is in threaded connection with the screw rod (9).

6. The simple static balance test rack for the rotary impeller according to claim 4, characterized in that: a handle (12) is arranged on the outer side of the supporting plate (10), and the handle (12) is fixedly connected with the screw rod (9).

7. The simple static balance test rack for the rotary impeller according to claim 5, characterized in that: the diameter of the thread at the joint of the screw rod (9) and the nut (11) is larger than that of the thread at the joint of the screw rod (9) and the U-shaped support (5).