CN113390544A

CN113390544A - Compressor stator torque and EOL (equivalent output Circuit) testing mechanism

Info

Publication number: CN113390544A
Application number: CN202010169191.XA
Authority: CN
Inventors: 赵闯; 肖承林; 李涛
Original assignee: Shenyang Siasun Robot and Automation Co Ltd
Current assignee: Shenyang Siasun Robot and Automation Co Ltd
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-09-14

Abstract

The invention relates to the technical field of automatic assembly detection of compressors, in particular to a mechanism for testing the torque and EOL (equivalent offset load) of a compressor stator. The device comprises an air cylinder, an air cylinder connecting piece, a sliding block, a guide rail, a sliding mounting seat, a servo motor, a torque sensor, a bearing seat and a rotating shaft. Through the cooperation setting of cylinder, cylinder connecting piece, slider, guide rail, slidable mounting seat, bearing frame and pivot, make the cylinder accessible cylinder connecting piece drive the slidable mounting seat that is equipped with the slider and stably reciprocate along the guide rail, the rotor of installation can be guaranteed to the rotor in the pivot in the bearing frame and resist inside the magnetic force entering stator of stator to accomplish the EOL test smoothly, through torque sensor, the cooperation setting of servo motor and pivot, can conveniently measure the moment of torsion that the rotor of installation received in the pivot. The invention can realize the functions of EOL test and stator torque test without assembling the whole compressor, reduces the waste of manpower and time and has simple and reliable use.

Description

Compressor stator torque and EOL (equivalent output Circuit) testing mechanism

Technical Field

The invention relates to the technical field of automatic assembly detection of compressors, in particular to a mechanism for testing the torque and EOL (equivalent offset load) of a compressor stator.

Background

At present, during the production of domestic compressors, the whole compressor is generally assembled and then subjected to inspection and test, including an End-of-line (End-of-line) test and a stator torque test on the compressor, wherein the EOL test comprises the tests of the insulation withstand voltage, the internal resistance temperature, the current, the counter electromotive force, the no-load torque and the like of the compressor, the stator torque refers to the torque generated by the stator to the rotor when the rotor rotates after entering the stator, and when the installed stator or the rotor is unqualified, the installed compressor needs to be disassembled, inspected and re-installed, so that the labor and the time are wasted. Therefore, a compressor stator torque and EOL test mechanism is needed.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a mechanism for testing the torque and EOL of a compressor stator.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a compressor stator moment of torsion and EOL accredited testing organization, includes main frame, cylinder and slidable mounting seat, the cylinder install in the inside of main frame, be equipped with the cylinder connecting piece on slidable mounting seat's a side, the cylinder connecting piece extend to the inside of main frame and with the output of cylinder is connected, servo motor, torque sensor and bearing frame are installed respectively to slidable mounting seat's opposite side, the pivot is installed in the internal rotation of bearing frame, torque sensor respectively with servo motor's output with the upper end of pivot is connected, the lower extreme and the rotor of pivot are connected.

Preferably, the torque sensor is mounted on the sliding mounting seat through a torque sensor bracket.

Preferably, the output end of the cylinder is connected with the cylinder connecting piece through a floating joint.

Preferably, the bearing seat is internally provided with a plurality of bearings, and the bearings are rotatably connected with the rotating shaft.

Preferably, a torque limiter is further arranged between the output end of the servo motor and the torque sensor.

Preferably, a guide rail is arranged on one side face of the main frame, a sliding block is further arranged on the side face of the sliding installation seat, which is provided with the cylinder connecting piece, and the sliding block can slide along the guide rail.

Preferably, the lower end of the rotating shaft is sequentially provided with a force transmission piece, a locking spacer bush and a locking nut, and the rotor can be fastened on the force transmission piece through the locking spacer bush and the locking nut.

Preferably, the output end of the servo motor is collinear with the axial center line of the rotating shaft.

The invention has the advantages and positive effects that:

according to the invention, through the matching arrangement of the air cylinder, the air cylinder connecting piece, the sliding block, the guide rail, the sliding installation seat, the bearing seat and the rotating shaft, the air cylinder can drive the sliding installation seat provided with the sliding block to stably move up and down along the guide rail through the air cylinder connecting piece, the rotor arranged on the rotating shaft in the bearing seat can ensure that the rotor can enter the stator by resisting the magnetic force of the stator, so that the rotor can stably rotate in the stator, the rotor is prevented from being adsorbed to the stator, and the EOL test can be smoothly completed. The invention can realize the functions of EOL test and stator torque test without assembling the whole compressor, reduces the waste of manpower and time and has simple and reliable use.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic front view of the overall structure of the present invention;

FIG. 3 is a side view of the overall structure of the present invention;

FIG. 4 is a schematic view of the construction of the bearing housing portion of the present invention;

FIG. 5 is a schematic front view of a compressor stator configuration;

FIG. 6 is a side view of a compressor stator structure.

In the figure: the device comprises a main frame 1, a cylinder 2, a sliding mounting seat 3, a bearing seat 4, a guide rail 5, a sliding block 6, a cylinder connecting piece 7, a servo motor 8, a torque sensor 9, a rotating shaft 10, a force transmission piece 11, a locking spacer bush 12, a locking nut 13, a torque sensor bracket 14, a floating joint 15, a bearing 16, a torque limiter 17, a rotor 001 and a stator 002.

Detailed Description

The invention is described in further detail below with reference to figures 1-6.

A compressor stator torque and EOL testing mechanism comprises a main frame 1, an air cylinder 2 and a sliding installation seat 3, wherein the air cylinder 2 is installed inside the main frame 1, the air cylinder 2 can adopt the air cylinder in the prior art and is controlled by an external air pressure station and an external main controller, an air cylinder connecting piece 7 is arranged on one side surface of the sliding installation seat 3, the air cylinder connecting piece 7 extends into the main frame 1 and is connected with the output end of the air cylinder 2, the air cylinder 2 can drive the sliding installation seat 3 to move up and down through the air cylinder connecting piece 7, a servo motor 8, a torque sensor 9 and a bearing seat 4 are respectively installed on the other side of the sliding installation seat 3, the servo motor 8 and the torque sensor 9 are respectively powered by an external power supply and are controlled by the external main controller to receive and send signals, a rotating shaft 10 is installed inside the bearing seat 4 in a rotating mode, and the torque sensor 9 is respectively connected with the output end of the servo motor 8 and the upper end of the rotating shaft 10, the lower end of the rotating shaft 10 is connected with the rotor 001, the servo motor 8 can drive the rotating shaft 10 to rotate, and the torque sensor 9 can measure the torque of the rotating shaft 10 so as to measure the torque value.

Specifically, the torque sensor 9 is mounted on the slide mount 3 through a torque sensor bracket 14 to keep the arrangement of the torque sensor 9 stable.

Particularly, the output end of the cylinder 2 is connected with the cylinder connecting piece 7 through the floating joint 15, and the connection is convenient.

Specifically, the bearing housing 4 is provided with a plurality of bearings 16 therein, and the bearings 16 are rotatably connected to the rotating shaft 10, so that the rotating shaft 10 can smoothly rotate inside the bearing housing 4.

Specifically, a torque limiter 17 is further disposed between the output end of the servo motor 8 and the torque sensor 9, the torque limiter 17 plays a role in protecting the torque sensor 9 and preventing the torque sensor 9 from being damaged due to excessive torque, and the torque limiter 17 adopted in this embodiment is a torque limiter manufactured by tokyo cheno technologies ltd, tokyo, inc.

Specifically, a guide rail 5 is provided on one side surface of the main frame 1, and a slider 6 is further provided on the side surface of the slide mount base 3 provided with the cylinder connector 7, and the slider 6 can slide along the guide rail 5, so that the slide mount base 3 can stably slide along the guide rail 5.

Specifically, the lower end of the rotating shaft 10 is sequentially provided with a force transmission piece 11, a locking spacer 12 and a locking nut 13, and the rotor 001 can be fastened on the force transmission piece 11 by the locking spacer 12 and the locking nut 13.

Specifically, the output end of the servo motor 8 is collinear with the axial center line of the rotary shaft 10.

The working principle is as follows:

when the device is used, the rotor 001 is firstly installed on the force transmission piece 11 at the lower end of the rotating shaft 10, the rotor 001 is locked and fixed through the locking spacer 12 and the locking nut 13, the stator 002 is placed right below the rotor 001, the stator 002 is connected with the external EOL test system, the control cylinder 2 drives the sliding installation seat 3 provided with the sliding block 6 to move downwards along the guide rail 5 through the cylinder connecting piece 7, the rotor 001 at the lower end of the rotating shaft 10 enters the inside of the stator 002, the servo motor 8 is started, the rotating shaft 10 drives the rotor 001 installed at the lower end to rotate, the external EOL test system is started to electrify the stator 002, the EOL test is carried out, meanwhile, the servo motor 8 drives the rotor 001 to reach a rated rotating speed, a torque value of the rotor 001 is obtained through the torque sensor 9, and EOL test and torque test of the rotor 001 generated by the stator 002 when the rotor 001 rotates after entering the stator 002 are completed.

Claims

1. The utility model provides a compressor stator moment of torsion and EOL accredited testing organization which characterized in that: including main frame (1), cylinder (2) and slidable mounting seat (3), cylinder (2) install in the inside of main frame (1), be equipped with cylinder connecting piece (7) on the side of slidable mounting seat (3), cylinder connecting piece (7) extend to the inside of main frame (1) and with the output of cylinder (2) is connected, servo motor (8), torque sensor (9) and bearing frame (4) are installed respectively to the opposite side of slidable mounting seat (3), pivot (10) are installed in the internal rotation of bearing frame (4), torque sensor (9) respectively with the output of servo motor (8) with the upper end of pivot (10) is connected, the lower extreme and the rotor (001) of pivot (10) are connected.

2. The compressor stator torque and EOL testing mechanism of claim 1, wherein: the torque sensor (9) is mounted on the sliding mounting seat (3) through a torque sensor bracket (14).

3. The compressor stator torque and EOL testing mechanism of claim 1, wherein: the output end of the air cylinder (2) is connected with the air cylinder connecting piece (7) through a floating joint (15).

4. The compressor stator torque and EOL testing mechanism of claim 1, wherein: the bearing seat is characterized in that a plurality of bearings (16) are arranged inside the bearing seat (4), and the bearings (16) are rotatably connected with the rotating shaft (10).

5. The compressor stator torque and EOL testing mechanism of claim 1, wherein: and a torque limiter (17) is also arranged between the output end of the servo motor (8) and the torque sensor (9).

6. The compressor stator torque and EOL testing mechanism of claim 1, wherein: be equipped with guide rail (5) on one side of main frame (1), slidable mounting seat (3) are equipped with still be equipped with slider (6) on the side of cylinder connecting piece (7), slider (6) can along guide rail (5) slide.

7. The compressor stator torque and EOL testing mechanism of claim 1, wherein: the lower end of the rotating shaft (10) is sequentially provided with a force transmission piece (11), a locking spacer bush (12) and a locking nut (13), and the rotor (001) can be fastened on the force transmission piece (11) by the locking spacer bush (12) and the locking nut (13).

8. The compressor stator torque and EOL testing mechanism of claim 1, wherein: the output end of the servo motor (8) is collinear with the axial center line of the rotating shaft (10).