CN210400425U

CN210400425U - Nuclear motor testing device

Info

Publication number: CN210400425U
Application number: CN201921609664.2U
Authority: CN
Inventors: 杨海江
Original assignee: Wuxi Nasch Control And Test Technology Co ltd
Current assignee: Wuxi Nasch Control And Test Technology Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-04-24
Anticipated expiration: 2029-09-25

Abstract

The utility model relates to a motor detection device, in particular to a nuclear-grade motor testing device, which comprises a frame, wherein a first rotating shaft and a second rotating shaft which are parallel to each other are horizontally and rotatably connected on the frame, the first rotating shaft and the second rotating shaft are connected through a chain wheel mechanism, a driving motor for driving the second rotating shaft to rotate is fixed on the frame, a mounting plate is fixed on the first rotating shaft, a tested motor is fixed on the mounting plate, and the rotating shaft of the tested motor is vertical to the first rotating shaft; the chain wheel mechanism comprises a first chain wheel, the first chain wheel and the first rotating shaft are coaxially fixed, pin holes corresponding to the positions of the first chain wheel and the rack are arranged on the first chain wheel and the rack, pin shafts are inserted in the pin holes, and when the pin shafts are inserted in series into the two pin holes, the motor to be tested is in a vertical downward shape; the vertical accompanying and measuring motor is detachably connected to the rack, and a rotating shaft of the accompanying and measuring motor is connected with a rotating shaft of the measured motor through a coupler. The utility model discloses can make the measured motor of installing on testing arrangement be vertical downward form and test.

Description

Nuclear motor testing device

Technical Field

The utility model relates to a motor check out test set especially relates to a nuclear level motor testing arrangement.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, and the motor mainly has the function of generating driving torque and is used as a power source of electric appliances or various machines. The nuclear motor has special requirements on the stability and the coil of the motor, and is mainly used for a nuclear power station.

With the continuous improvement of energy policies and environmental protection requirements of various countries, the construction of nuclear power plants becomes the development direction of power stations in future. According to the requirements of nuclear safety regulations, in order to ensure that a nuclear power station can safely operate under normal operation conditions, nuclear accident operation conditions and post-accident operation conditions, and protect the health and safety of the public, a series of tests must be carried out on a nuclear safety system and equipment to verify whether expected functions can be executed, wherein the tests include the test of a nuclear-grade motor.

The utility model with the publication number of CN204330017U discloses a servo motor test platform, which comprises a T-shaped groove platform, a motor fixing frame for accompanying test, a flange plate, a motor brake, a hydraulic brake, a bracket, a cushion block and a torque microswitch; the flange plate is installed on accompanying and testing the motor fixing frame, the motor band-type brake and the hydraulic brake are installed on the bracket, the torque micro switch is fixed on the cushion block, and the accompanying and testing motor fixing frame, the bracket and the cushion block are all installed on the T-shaped groove platform.

The rotating shaft of some nuclear-grade motors is in a state of facing downwards vertically when working, and in order to avoid errors caused by inconsistency between the state of the tested motor and the state of working during testing, the rotating shaft of the nuclear-grade motor is also required to be in the state of facing downwards vertically when testing the nuclear-grade motor. However, when testing the nuclear motor, it is difficult to maintain the rotation axis of the nuclear motor in a vertically downward shape when the nuclear motor is mounted on the servo motor test platform for testing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nuclear level motor testing arrangement, it can make the measured motor of installing on testing arrangement be vertical state.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a nuclear-grade motor testing device comprises a rack, wherein a first rotating shaft and a second rotating shaft which are parallel to each other are horizontally and rotatably connected to the rack, the first rotating shaft and the second rotating shaft are connected through a chain wheel mechanism, a driving motor for driving the second rotating shaft to rotate is fixed on the rack, an installation plate is fixed on the first rotating shaft, a motor to be tested is fixed on the installation plate, and a rotating shaft of the motor to be tested is vertical to the first rotating shaft; the chain wheel mechanism comprises a first chain wheel, the first chain wheel and the first rotating shaft are coaxially fixed, pin holes corresponding to the positions of the first chain wheel and the rack are arranged on the first chain wheel and the rack, pin shafts are inserted in the pin holes, and when the pin shafts are inserted in series into the two pin holes, the motor to be tested is in a vertical downward shape; the vertical accompanying and measuring motor is detachably connected to the rack, and a rotating shaft of the accompanying and measuring motor is connected with a rotating shaft of the measured motor through a coupler.

By adopting the technical scheme, the driving motor drives the second rotating shaft to rotate, the second rotating shaft drives the first rotating shaft to rotate through the chain wheel mechanism, the tested motor can rotate along with the first rotating shaft as the tested motor is fixed relative to the first rotating shaft, when the first chain wheel rotates to enable the two pin holes to be coaxially communicated, the tested motor is vertical, and the two pin holes are immediately inserted in series through the pin shaft to keep the tested motor fixed; accompany and survey the same vertical connection of motor in the frame for accompany the rotation axis of surveying the motor and the rotation axis of being surveyed the motor and can use the coupling joint, be convenient for carry out the capability measurement to being surveyed the motor.

Preferably, the sprocket mechanism further comprises a second sprocket and a chain, the second sprocket is coaxially fixed with the second rotating shaft, the second sprocket is connected with the first sprocket through the chain, and the first sprocket is larger than the second sprocket.

Through adopting above-mentioned technical scheme, driving motor passes through chain wheel mechanism and drives the rotation of being surveyed the motor, and chain wheel mechanism has the advantage of not skidding for belt mechanism, therefore chain wheel mechanism can drive heavier being surveyed the motor rotation. The first sprocket of design is greater than the second sprocket, and the purpose makes first sprocket deceleration, makes the motor under test slowly rotate, produces centrifugal force and causes first pivot load too big when on the one hand in order to prevent the motor under test fast rotating, on the other hand in order to prevent that the motor under test from rotating vertical position fast.

Preferably, a flange is arranged on a shell of the tested motor, a plurality of through holes corresponding to the positions are formed in the flange and the mounting plate, the flange is connected with the mounting plate through bolts, and the bolts penetrate through the through holes.

Through adopting above-mentioned technical scheme, so the design is favorable to making the connection of being surveyed motor and mounting panel more firm, also is convenient for simultaneously dismantle from the mounting panel and is surveyed the motor.

Preferably, the rotation selecting shaft of the driving motor is connected with a speed reducer, and an output shaft of the speed reducer is connected with the second rotation shaft through a pair of bevel gears.

Through adopting above-mentioned technical scheme, utilize the speed reducer directly to reduce the rotational speed of second pivot to the indirect rotational speed that reduces first pivot.

Preferably, a vertical baffle is fixed on the rack, a first groove is formed in the baffle, a microswitch is fixed in the first groove, and a contact pin of the microswitch extends out of the first groove; when the tested motor rotates to be vertical, the shell of the tested motor is contacted with the baffle and presses the contact pin to trigger the microswitch; the frame is fixed with the controller, and micro-gap switch and driving motor all are connected with controller electric property.

Through adopting above-mentioned technical scheme, when the casing of being surveyed the motor contacts with the baffle, being surveyed the motor and being in vertical state, being surveyed the motor the casing pressure of being surveyed and can triggering micro-gap switch immediately on micro-gap switch's contact foot, micro-gap switch sends the signal of telecommunication to controller, the controller then controls driving motor and stops rotatoryly, electric energy can't turn into mechanical energy and turn into internal energy when having avoided driving motor's rotation axis to be kept off by the fender, cause driving motor's coil to generate heat and lead to driving motor to damage or life-span to reduce.

Preferably, the rack is provided with an air cylinder, and when the motor to be detected rotates to contact the baffle, a piston rod of the air cylinder props against the motor to be detected; when the piston rod of the cylinder butts against the motor to be tested, the cylinder and the baffle are respectively positioned at two sides of the motor to be tested, and the electromagnetic valve of the control cylinder is electrically connected with the controller.

Through adopting above-mentioned technical scheme, trigger micro-gap switch when the shell of being surveyed the motor is pressed micro-gap switch's feeler pin, micro-gap switch then sends the signal of telecommunication to controller, and the controller control cylinder starts, and the piston rod of cylinder stretches out to be surveyed the motor and supports to press on the baffle, makes to be surveyed the motor and keeps vertical ground state upwards steadily to test by accompanying and surveying the motor.

Preferably, a support is fixed on the rack, and the accompanying measuring motor is vertically detachably connected with the support.

Through adopting above-mentioned technical scheme, the support makes the motor of accompanying and surveying can be stably fixed in on the frame.

Preferably, a positioning seat is fixed on the support, a second groove is formed in the positioning seat, and the second groove is matched with the shape of the bottom of the casing of the accompanying and measuring motor.

Through adopting above-mentioned technical scheme, accompany and survey the motor and arrange the positioning seat in, the casing bottom shape fit of second recess and company's survey motor for accompany and survey the motor and be connected more closely with the positioning seat, when the test, accompany and survey the motor and be difficult for rocking, conveniently accompany moreover and survey the motor and take out from the second recess vertically.

To sum up, the utility model discloses a beneficial technological effect does:

1. the tested motor can rotate to a vertical downward position for testing, and the special requirements of the vertical test of the nuclear-grade motor are met;

2. when the detected motor rotates to the vertical position and contacts with the baffle, the controller can send an electric signal to stop the driving motor, so that the phenomenon that the electric energy cannot be converted into mechanical energy and can be converted into internal energy when the rotating shaft of the driving motor is stopped by the baffle, and the coil of the driving motor generates heat to cause the damage or the reduction of the service life of the driving motor is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a nuclear-grade motor testing device;

FIG. 2 is a schematic view of the connection between the motor under test and the mounting plate;

FIG. 3 is a schematic diagram of a nuclear class motor testing apparatus in a test state;

FIG. 4 is a schematic view of the positioning socket;

FIG. 5 is a schematic view showing the overall configuration of a nuclear-grade motor testing apparatus according to embodiment 2;

FIG. 6 is a schematic view showing the connection between the shutter and the microswitch in embodiment 2.

In the figure, 1, a frame; 2. a first rotating shaft; 3. a second rotating shaft; 4. a motor to be tested; 5. a flange; 6. a bearing seat; 7. a first bearing; 8. a second bearing; 9. a drive motor; 10. a speed reducer; 11. a first groove; 12. a helical gear; 13. a pin hole; 14. a pin shaft; 15. a baffle plate; 16. a microswitch; 17. mounting a plate; 18. a first sprocket; 19. a second sprocket; 20. a chain; 21. a bolt; 22. a accompany testing motor; 23. a coupling; 24. a controller; 25. a cylinder; 26. a support; 27. positioning seats; 28. a second groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: fig. 1 is the utility model discloses a nuclear level motor testing arrangement, including frame 1, frame 1 is improved level and is rotated the first pivot 2 and the second pivot 3 that are parallel to each other, frame 1 bottom is fixed with driving motor 9 and bearing frame 6, driving motor 9's rotation axis is connected with speed reducer 10, speed reducer 10's output shaft is connected with second pivot 3 through a pair of helical gear 12, speed reducer 10 has directly reduced the rotational speed of second pivot 3, install second bearing 8 in the

bearing frame

6, 3 coaxial being fixed in of second pivot in the inner circle of second bearing 8.

As shown in fig. 1 and 2, a first bearing 7 is fixedly connected to a side wall of the frame 1, the first rotating shaft 2 is coaxially fixed in an inner ring of the first bearing 7, an installation plate 17 is fixed on the first rotating shaft 2, a measured motor 4 is fixedly connected to the installation plate 17, and a rotating shaft of the measured motor 4 is perpendicular to the first rotating shaft 2. The casing of the motor 4 to be measured is formed with a flange 5, the flange 5 and the mounting plate 17 are provided with a plurality of through holes corresponding to the positions, the flange 5 is connected with the mounting plate 17 through bolts 21, and the bolts 21 penetrate through the through holes.

As shown in fig. 1, a first sprocket 18 is coaxially fixed on the first rotating shaft 2, a second sprocket 19 is coaxially fixed on the second rotating shaft 3, and the first sprocket 18 and the second sprocket 19 are connected through a chain 20; the diameter of first sprocket 18 is greater than the diameter of second sprocket 19, and second sprocket 19 changes many rings after, and first sprocket 18 only rotates the round to make by survey motor 4 slow rotation, the centrifugal force that produces when having avoided by survey motor 4 fast rotating causes the too big and cracked condition of load of first pivot 2 to take place, has also avoided by survey motor 4 to rotate vertical position fast.

As shown in fig. 3, the side wall of the rack 1 and the first sprocket 18 are both provided with pin holes 13, when the motor 4 to be measured is in a vertically downward state, the two pin holes 13 are coaxially through, and the pin shafts 14 are inserted into the two pin holes 13 in series, so that the position of the motor 4 to be measured can be fixed.

As shown in fig. 3 and 4, a bracket 26 is fixed on the frame 1, a positioning seat 27 is fixed on the bracket 26, a second groove 28 is formed on the upper surface of the positioning seat 27, the shape of the second groove 28 is matched with that of the bottom of the casing of the testing motor 22, and the rotating shaft of the testing motor 22 is connected with the rotating shaft of the tested motor 4 through a coupling 23.

The specific implementation process of the embodiment 1 is as follows: driving motor 9 drive second pivot 3 rotates, second pivot 3 passes through chain 20 thereby drives first pivot 2 and rotates, because mounting panel 17 is fixed on first pivot 2, it fixes on mounting panel 17 to be surveyed motor 4, it is fixed for first pivot 2 to be surveyed motor 4, so it can follow first pivot 2 and rotate to be surveyed motor 4, when first sprocket 18 is rotatory to two pinhole 13 coaxial communicating, it is vertical to be surveyed motor 4 this moment, it can keep being surveyed motor 4 motionless to insert two pinhole 13 with round pin axle 14 cluster immediately, again will accompany and survey motor 22 and install in frame 1, the rotation axis that will accompany and survey motor 22 passes through shaft coupling 23 coaxial coupling with the rotation axis that will be surveyed motor 4, can test being surveyed motor 4.

Example 2: a nuclear grade motor testing device is shown in figure 5, and is additionally provided with an air cylinder 25, a baffle plate 15, a microswitch 16 and a controller 24 on the basis of embodiment 1. A baffle 15 is fixed in the rack 1, a first groove 11 is formed in the baffle 15, a microswitch 16 is arranged in the first groove 11, a contact pin of the microswitch 16 extends out of the first groove 11 (see fig. 6), and when the detected motor 4 rotates to a vertical downward state, a shell of the detected motor 4 is pressed on the contact pin of the microswitch 16, so that the microswitch 16 is triggered.

A controller 24 is fixed on the frame 1, and the micro switch 16 and the driving motor 9 are electrically connected with the controller 24. When the detected motor 4 is pressed on a contact pin of the microswitch 16, the microswitch 16 is triggered, the microswitch 16 sends an electric signal to the controller 24, and the controller 24 controls the driving motor 9 to stop rotating, so that the phenomenon that when a rotating shaft of the driving motor 9 is stopped, electric energy cannot be converted into mechanical energy and can be converted into internal energy, and a coil of the driving motor 9 generates heat to cause the damage or the reduction of the service life of the driving motor 9 is avoided.

As shown in fig. 5, an air cylinder 25 is fixed on the frame 1, the controller 24 is electrically connected to the electromagnetic valve controlling the air cylinder 25, when the tested motor 4 rotates to the vertical state, the housing of the tested motor 4 presses on the contact pin of the micro switch 16, so as to trigger the micro switch 16, the micro switch 16 sends an electric signal to the controller 24, the controller 24 receives the electric signal of the micro switch 16, the controller 24 controls the air cylinder 25 to start, the piston rod of the air cylinder 25 extends out to press the tested motor 4 against the baffle 15, so that the tested motor 4 is stably kept in the vertical upward state, and the tested motor 22 is used for testing the tested motor.

The specific implementation process of the embodiment 2 comprises the following steps: when the tested motor 4 rotates to the vertical position, the shell of the tested motor 4 presses on the baffle 15 to trigger the microswitch 16, the microswitch 16 sends an electric signal to the controller 24, the controller 24 controls the driving motor 9 to be closed and the air cylinder 25 to be started, the tested motor 4 is pressed on the baffle 15 after the air cylinder 25 is started, and the position of the tested motor 4 is fixed.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a nuclear level motor testing arrangement, includes frame (1), and frame (1) goes up horizontal swivelling joint has first pivot (2) and second pivot (3) that are parallel to each other, its characterized in that: the first rotating shaft (2) is connected with the second rotating shaft (3) through a chain wheel mechanism, a driving motor (9) for driving the second rotating shaft (3) to rotate is fixed on the rack (1), an installation plate (17) is fixed on the first rotating shaft (2), a tested motor (4) is fixed on the installation plate (17), and a rotating shaft of the tested motor (4) is vertical to the first rotating shaft (2); the chain wheel mechanism comprises a first chain wheel (18), the first chain wheel (18) and the first rotating shaft (2) are coaxially fixed, pin holes (13) corresponding to the first chain wheel (18) and the rack (1) in position are formed in the first chain wheel (18) and the rack (1), pin shafts (14) are inserted into the pin holes (13), and when the pin shafts (14) are inserted into the two pin holes (13) in series, the motor (4) to be measured is vertically downward; the vertical accompanying and measuring motor (22) is detachably connected to the rack (1), and a rotating shaft of the accompanying and measuring motor (22) is connected with a rotating shaft of the measured motor (4) through a coupler (23).

2. The nuclear-grade motor testing device of claim 1, wherein: the chain wheel mechanism further comprises a second chain wheel (19) and a chain (20), the second chain wheel (19) is coaxially fixed with the second rotating shaft (3), the second chain wheel (19) is connected with the first chain wheel (18) through the chain (20), and the first chain wheel (18) is larger than the second chain wheel (19).

3. The nuclear-grade motor testing device of claim 1, wherein: be equipped with flange (5) on the casing of motor (4) under test, all be equipped with the through-hole that a plurality of positions correspond on flange (5) and mounting panel (17), flange (5) pass through bolt (21) with mounting panel (17) and are connected, and bolt (21) pass the through-hole.

4. The nuclear-grade motor testing device of claim 1, wherein: the rotating shaft of the driving motor (9) is connected with a speed reducer (10), and the output shaft of the speed reducer (10) is connected with the second rotating shaft (3) through a pair of bevel gears (12).

5. The nuclear-grade motor testing device of claim 1, wherein: a vertical baffle (15) is fixed on the rack (1), a first groove (11) is formed in the baffle (15), a microswitch (16) is fixed in the first groove (11), and a contact pin of the microswitch (16) extends out of the first groove (11); when the tested motor (4) rotates to a vertical downward state, the shell of the tested motor (4) is contacted with the baffle (15) and presses the contact pin to trigger the microswitch (16); a controller (24) is fixed on the frame (1), and the micro switch (16) and the driving motor (9) are electrically connected with the controller (24).

6. The nuclear-grade motor testing device of claim 5, wherein: the frame (1) is provided with an air cylinder (25), and when the motor (4) to be tested rotates to contact the baffle (15), a piston rod of the air cylinder (25) props against the motor (4) to be tested; when the piston rod of the air cylinder (25) props against the tested motor (4), the air cylinder (25) and the baffle (15) are respectively positioned at two sides of the tested motor (4), and the electromagnetic valve of the control air cylinder (25) is electrically connected with the controller (24).

7. The nuclear-grade motor testing device of claim 1, wherein: a support (26) is fixed on the rack (1), and the accompanying measuring motor (22) is vertically detachably connected with the support (26).

8. The nuclear-grade motor testing device of claim 7, wherein: a positioning seat (27) is fixed on the support (26), a second groove (28) is formed in the positioning seat (27), and the second groove (28) is matched with the shape of the bottom of a shell of the accompanying and measuring motor (22).