CN116256605A - Comprehensive testing device for insulating bearing - Google Patents

Abstract

The invention provides a comprehensive testing device of an insulating bearing, which comprises a base, a main shaft, an inner ring fixer, an outer ring fixer, a driving motor, a conductive slip ring, an insulating measuring head and a testing cover, wherein the main shaft is rotatably connected to the base; the test cover is provided with an environment simulation system, the tested insulated bearing is arranged inside the test cover through the inner ring fixer and the outer ring fixer, comprehensive test environments such as different temperatures, humidity, oil mist or dust and the like are realized in the test cover through the environment simulation system, the rotating speed condition of the tested insulated bearing is controlled by matching with the driving motor, the influence of each environment factor on the service life of the insulated bearing can be analyzed, and the performance and service life of the tested insulated bearing are more real and reliable.

Description

A Comprehensive Test Device for Insulated Bearings

technical field

The invention relates to the technical field of bearing performance testing, in particular to a comprehensive testing device for insulating bearings.

Background technique

With the rapid speed increase of railways, high-speed railways are used in large areas in the south, north and plateau, and higher and higher requirements are put forward for the bearings of traction motors for railway vehicles, especially for the comprehensive performance test of insulating bearings for drive motors. . The shaft current generated by the unbalanced magnetic circuit, the leakage current caused by the pulse-shaped voltage accompanied by the inverter drive, and the ground current flowing through the traction motor generated by the ground loop structure may cause electric corrosion of the traction motor bearing, making the The life of the bearing is greatly reduced. Once an accident occurs in the bearing, it may cause a major safety accident of car crash. Insulated bearings with insulating coatings on the outer and inner rings of the bearings are an effective way to prevent electrical corrosion of traction motor bearings. Due to the diversity of bearing application conditions and application environments, the bearing performance needs to be able to adapt to various environments, such as the fatigue resistance of railway heavy loads, etc. These performances are closely related to the application environment. According to the application environment of the bearing, through the bearing Optimize the design so that the service life of the bearing meets the requirements of the entire life of the equipment.

In the prior art, insulating bearings are tested separately in different environments such as moisture resistance, oil resistance, high and low temperature, etc., which cannot simulate the comprehensive environment in the actual service process, and the test results obtained are quite different from the actual application state. It is beneficial to the optimal design of insulating bearings.

Contents of the invention

Therefore, in order to provide a better testing environment for the insulating bearing and simulate the electrical insulation performance of the insulating bearing under various service environment conditions, the present invention provides a comprehensive testing device for the insulating bearing.

The comprehensive testing device of the insulating bearing provided by the present invention comprises:

Machine base;

The main shaft is rotatably connected to the base, the main shaft is hollow, and the side wall of the main shaft is provided with perforations;

an inner ring fixer, connected to the main shaft, used to fix the inner ring of the measured insulating bearing on the main shaft;

An outer ring fixer, connected to the machine base, is used to fix the outer ring of the tested insulated bearing on the machine base;

a driving motor, fixed on the machine base, for driving the main shaft to rotate;

A conductive slip ring, which includes a stator and a rotor, the rotor is connected to the main shaft, and the stator is relatively fixed to the base;

An insulating measuring head, which includes a fixed insulating measuring head and a moving insulating measuring head, the fixed insulating measuring head is used to be pasted on the outer ring of the insulating bearing to be tested, and the fixed insulating measuring head is connected to the conductive slip ring through a wire Stator connection; the movable insulating measuring head is used to stick on the inner ring of the measured insulating bearing, and the moving insulating measuring head is connected to the rotor of the conductive slip ring through the through-hole through the main shaft through the wire;

The test cover is fixed on the machine base, the inner ring holder and the outer ring holder install the tested insulating bearing inside the test cover, and the test cover is provided with an environment simulation system.

Optionally, the inner ring fixer includes:

The connecting ring is sleeved on the main shaft and relatively fixed to the main shaft;

The connection plate is provided with a plurality of arrays distributed on the outer wall of the connection ring;

The number of inner ring clamping blocks is the same as that of the connecting plates and corresponds to each connecting plate one by one, and the inner ring clamping blocks can slide on the connecting plate along the radial direction of the connecting ring;

The fixing assembly has the same number as the inner ring clamping blocks and corresponds to each inner ring clamping block one by one, and is used to fix the position of the inner ring clamping blocks on the connecting plate.

Optionally, the fixing assembly includes:

Connecting block, connected to the inner ring clamping block;

The fixing screw is parallel to the sliding direction of the inner ring clamping block, and is threadedly connected to the connecting block, and one end thereof abuts against the outer wall of the main shaft.

Optionally, the connecting plate is provided with slide grooves arranged radially along the connecting ring, and the end surface of the inner ring block facing the connecting plate is provided with a protruding structure, and the protruding structure is slidably embedded in the inside the chute;

The connecting block and the inner ring clamping block are respectively located on both sides of the connecting plate, and the connecting block is provided with a connecting bolt, and the connecting bolt passes through the slide groove and is connected with the inner ring clamping block.

Optionally, the main shaft is provided with a first threaded segment and a second threaded segment, the guide slip ring is connected to the main shaft through the first threaded segment, and the connecting ring is connected to the main shaft through the second threaded segment on the spindle.

Optionally, the outer ring fixer includes:

a support rod arranged along the axial direction of the main shaft;

The mounting base is connected to the machine base, and one end of the support rod is fixed on the mounting base;

The clamping plate is fixed on the support rod;

A movable clamping plate is slidably connected to the support rod, so as to clamp the outer ring of the measured insulating bearing on the fixed clamping plate through the movable clamping plate.

Optionally, a tangent surface is provided on the outer wall of the support rod, and the tangent surface is parallel to the axial direction of the support rod;

There is a movable hole on the movable clamp plate, and the movable hole includes an arc-shaped end with a diameter larger than the outer diameter of the support rod and a straight line segment attached to the flat section, and the movable clamp plate passes through the movable hole sleeve connected to the support rod;

The support rod is also provided with a screw thread and a locking nut engaged with the screw thread, and the locking nut abuts against the side of the movable clamping plate away from the fixed clamping plate.

Optionally, a connecting hole is opened on the mounting seat, and one side of the connecting hole is opened, and the mounting seat is provided with a fastening bolt at the opening of the connecting hole, and the support rod passes through in the connecting hole.

Optionally, the machine base includes a fixed bracket, and a vertical installation groove is opened on the fixed bracket, and the installation base is connected to the fixed bracket through bolts passing through the installation groove.

Optionally, the test cover includes an upper cover and a lower cover oppositely arranged, the lower cover is fixed on the base, and the upper cover is detachably connected to the lower cover.

The technical solution of the present invention has the following advantages:

1. The comprehensive test device provided by the present invention fixes the tested insulating bearing in the test cover by using the inner ring fixer and the outer ring fixer, and makes the inner ring of the insulating bearing rotate synchronously with the main shaft, and then uses the mobile insulation The measuring head and the fixed insulating measuring head are pasted on the inner ring and outer ring of the insulating bearing respectively, and the conductive slip ring keeps the moving insulating measuring head connected with the external testing instrument during the rotation of the main shaft, so as to realize the electrical insulation performance test of the insulating bearing. During the test, the inside of the test cover provides a closed environment for the test of the insulated bearing, and the environment simulation system on the test cover simulates the comprehensive environment faced by the insulated bearing during its service in the test cover, such as different temperature and humidity, salt spray, Comprehensive environmental factors such as oil mist, so that the test results are more real and reliable, and provide more accurate test results for the optimal design of insulated bearings.

2. In the comprehensive test device provided by the present invention, through the movement of multiple inner ring blocks in the inner ring holder, all the inner ring blocks are tightened in the inner ring of the insulating bearing, and then the inner ring blocks are fixed by the fixing component The position of the block realizes the fixation of the inner ring of the insulating bearing, and can fix the insulating bearings with different inner diameters.

3. In the comprehensive test device provided by the present invention, the outer ring of the insulating bearing is clamped on the fixed clamping plate by using the movable clamping plate in the outer ring holder, so as to realize the fixing of the insulating bearing outer ring, and can according to the position of the movable clamping plate Move and fix insulating bearings of different thicknesses. At the same time, with the height adjustment of the connecting seat on the fixed bracket, the height of the fixed clamp and the movable clamp can be adjusted based on the outer diameter of the outer ring of the insulating bearing, so that it can be used for multiple Testing of insulated bearings of various types and sizes.

4. The comprehensive testing device provided by the present invention has a simple overall structure and is easy to assemble, and can quickly install and disassemble the tested insulating bearing during the test, which improves the testing efficiency of the insulating bearing.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of comprehensive testing device in the embodiment of the present invention;

Fig. 2 is the exploded view of the structure of the test cover in the comprehensive test device and the internal structure of the test cover;

Fig. 3 is a schematic diagram of the structure of the main shaft, the inner ring holder and the outer ring holder in the comprehensive test device;

Fig. 4 is the cross-sectional view of the structure of the main shaft, the inner ring holder and the outer ring holder in the comprehensive test device;

Figure 5 is an exploded view of the connection relationship between the main shaft and the conductive slip ring, the drive motor and the inner ring holder in the comprehensive test device;

Fig. 6 is an exploded view of the connection relationship between the inner ring block, the connecting plate, the connecting block and the fixing screw in the inner ring retainer;

Fig. 7 is an exploded view of the connection relationship between the support rod, the mounting seat, the fixed clamp and the movable clamp in the outer ring holder.

Explanation of reference signs: 10, machine base; 11, bottom plate; 12, bearing bracket; 13, bearing seat; 14, motor bracket; 15, fixed bracket; 16, supporting feet;

20. Test cover; 21. Upper cover; 22. Lower cover;

30, main shaft; 31, perforation; 32, first thread segment; 33, second thread segment; 34, support bearing;

40. Inner ring retainer; 41. Connecting ring; 42. Connecting plate; 43. Inner ring block; 44. Protruding structure; 45. Connecting block; 46. Fixing screw;

50. Outer ring fixer; 51. Support rod; 52. Fixed clamping plate; 53. Movable clamping plate; 54. Mounting seat; 55. Locking nut; 56. Limiting end plate; 57. Fastening bolt;

60. Conductive slip ring;

70. Driving motor.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

The embodiment of the present invention provides a comprehensive testing device for insulated bearings. As shown in FIGS. , Conductive slip ring 60, drive motor 70 and insulating probe.

Wherein, the main shaft 30 is a hollow shaft arranged horizontally, the main shaft 30 is rotatably connected on the machine base 10, and the drive motor 70 is fixed on the machine base 10 and connected with one end of the main shaft 30 through a coupling, so that the main shaft 30 can be driven on the machine Rotate on seat 10. The inner ring holder 40 is used to fix the inner ring of the tested insulating bearing, the inner ring holder 40 is connected to the main shaft 30 so that it can rotate synchronously with the main shaft 30; the outer ring holder 50 is used to fix the outer ring of the tested insulating bearing. Ring, the outer ring holder 50 is connected on the frame 10. By fixing the inner and outer rings of the insulated bearing to be tested on the inner ring holder 40 and the outer ring holder 50 respectively, and then driving the main shaft 30 to rotate by the drive motor 70, the inner ring and the outer ring of the insulated bearing to be tested can be relatively rotated .

The end of the main shaft 30 away from the drive motor 70 is provided with a first threaded segment 32 , the rotor of the conductive slip ring 60 is connected to the main shaft 30 through the first threaded segment 32 , and the stator of the conductive slip ring 60 is fixed relative to the base 10 . The insulating probe includes a fixed insulating probe and a movable insulating probe. The fixed insulating probe is used to be pasted on the outer ring of the tested insulating bearing, and the movable insulating probe is used to be pasted on the inner ring of the tested insulating bearing. The main shaft is 30 There is a perforation 31 on the top, and the wire of the mobile insulating probe passes through the perforation 31 and extends into the inner side of the main shaft 30, and is connected with the rotor of the conductive slip ring 60, so that the mobile insulating probe and its wire can follow the main shaft 30 and the insulated bearing to be tested. The inner ring of the bearing rotates together, thereby realizing the test of the insulated bearing.

The test cover 20 is fixed on the machine base 10, the inner ring holder 40 and the outer ring holder 50 support the tested insulating bearing inside the test cover 20, and the test cover 20 is provided with an environmental simulation system, which can be used in the environment through the environmental simulation system. The test cover 20 simulates comprehensive test environments such as different temperatures, humidity, oil mist or dust, and cooperates with the drive motor 70 to control the speed conditions of the tested insulated bearing. And life is more real and reliable.

Specifically, as shown in FIG. 3 , the base 10 includes a bottom plate 11 , a bearing bracket 12 , a motor bracket 14 and a fixing bracket 15 .

The base plate 11 is a horizontal plate structure, and the base plate 11 is provided with a plurality of evenly arranged supporting feet 16, which stably support the base plate 11 on the ground and provide stable support for the operation of the entire equipment. The bearing bracket 12, the motor bracket 14 and the fixed bracket 15 are all steel frame structures, and are all fixed on the base plate 11 by bolts or welding, wherein, two bearing brackets 12 are arranged at intervals along the axial direction of the main shaft 30, The top of each bearing bracket 12 is provided with a bearing seat 13, and a support bearing 34 is installed in each bearing seat 13. The main shaft 30 is connected to the two support bearings 34, so that the main shaft 30 can rotate on the machine base 10 smoothly. . The motor bracket 14 is positioned at one side of the main shaft 30, and the driving motor 70 is fixed on the top of the motor bracket 14, so that the output shaft of the motor is coaxially arranged with the main shaft 30 and connected by a coupling. The fixing bracket 15 is located under the conductive slip ring 60 , and the outer ring holder 50 is connected to the fixing bracket 15 to stably support the outer ring holder 50 under the main shaft 30 .

As shown in FIG. 4 and FIG. 5 , the inner ring fixer 40 includes: a connecting ring 41 , a connecting plate 42 , an inner ring clamping block 43 and a fixing assembly.

The main shaft 30 is provided with a second threaded section 33 at a position between the two support bearings 34 , and the connecting ring 41 is fixed on the main shaft 30 through the second threaded section 33 . A plurality of connecting plates 42 are provided and distributed at intervals along the circumferential direction on the outer peripheral surface of the connecting ring 41 , and the connecting plates 42 are arranged along the radial direction of the connecting ring 41 . The number of the inner ring block 43 and the fixed assembly is the same as that of the connecting plate 42, and each connecting plate 42 is provided with the inner ring block 43 and the fixed assembly. The inner ring block 43 can be placed on the connecting plate 42 along the diameter of the connecting ring 41. Sliding in the direction, the fixing assembly is connected with the inner ring block 43 for fixing the position of the inner ring block 43 on the connecting plate 42 .

When fixing the inner ring of the insulated bearing under test, remove the support bearings 34 on both sides of the main shaft 30 from the bearing seat 13, and remove the conductive slip ring 60 at the end of the main shaft 30, and then install the insulated bearing under test Insert it from the end of the main shaft 30, so that each inner ring block 43 is placed on the inner side of the inner ring, and adjust the position of the inner ring block 43, so that all the inner ring blocks 43 are pressed against the inner ring of the insulating bearing , and at the same time let the fixing component fix the position of the inner ring block 43 , the inner ring can be fixed on the main shaft 30 through the tightening force of the plurality of inner ring blocks 43 . Moreover, by adjusting the relative positions of each inner ring block 43 , the inner ring of the insulating bearing can be adjusted to the coaxial state of the main shaft 30 to ensure the stable rotation of the inner ring of the insulating bearing.

Wherein, the number and distribution form of the connecting plates 42 are not limited, as long as the fixing effect on the inner ring of the insulating bearing is ensured, in this embodiment, three connecting plates 42 are provided and evenly distributed on the connecting ring 41 .

In this embodiment, as shown in Figure 6, the fixing assembly includes a connecting block 45 and a fixing screw 46, the connecting block 45 is connected to the inner ring block 43, the fixing screw 46 is threaded on the connecting block 45, and the fixing screw 46 is along the corresponding The extension direction of the connecting plate 42 is set, one end of the fixing screw 46 abuts against the outer peripheral surface of the main shaft 30 , and the other end of the fixing screw 46 is provided with a driving nut. After the position of the inner ring block 43 is adjusted, turn the fixed screw 46 so that its end is pressed against the main shaft 30, and use the reaction force to make the inner ring block 43 tighten on the inner ring of the insulated bearing under test to realize the inner ring The position of the clamping block 43 is fixed, and the self-locking property of the threaded connection is used to provide a stable tension force, and the position of each inner ring clamping block 43 can be fine-tuned by rotating each fixed screw 46, which is beneficial to adjust the distance between the measured insulating bearing and the main shaft 30 Concentricity.

Specifically, as shown in FIG. 4 and FIG. 6 , the connecting plate 42 is provided with a chute along the radial direction of the connecting ring 41 , and the end surface of the inner ring block 43 facing the connecting plate 42 is provided with a protruding structure 44 , and the protruding structure 44 Guide planes are provided on both sides of the chute, and the protruding structure 44 is embedded in the chute, so that the guide planes on both sides fit the inner walls on both sides of the chute, so that the inner ring block 43 can slide along the chute. The connecting block 45 is located on the side of the connecting plate 42 away from the inner ring block 43, and the connecting block 45 is provided with a connecting bolt, which passes through the chute to connect with the inner ring block 43, so that the connecting block 45 and the inner ring block 43 are connected to each other, and limit the inner ring clamping block 43 to be unable to disengage from the chute.

As shown in FIG. 4 and FIG. 7 , the outer ring holder 50 includes: a support rod 51 , a mounting seat 54 , a fixed clamping plate 52 and a movable clamping plate 53 .

The supporting rod 51 is located below the main shaft 30 and is parallel to the axis of the main shaft 30. One end of the supporting rod 51 extends to the bottom of the inner ring holder 40. The fixed clamping plate 52 and the movable clamping plate 53 are arranged on the supporting rod 51 at intervals to fix the clamping plate. The position of 52 is fixed, and the movable clamp 53 can slide on the support bar 51, so that the distance between the fixed clamp 52 and the movable clamp 53 is adjustable. The other end of the support rod 51 is fixed on the fixed bracket 15 through the mounting base 54 , and the mounting base 54 can move up and down on the fixed bracket 15 to adjust the height of the support rod 51 .

By placing the outer ring of the insulated bearing to be tested between the fixed clamp 52 and the movable clamp 53, and using the movable clamp 53 to clamp the end face of the outer ring of the insulating bearing on the fixed clamp 52, the outer ring can be realized. ring, and can be adaptively adjusted according to the width of the outer ring of the insulating bearing, and adjust the height of the support rod 51 to adapt to the different outer diameters of the outer ring of the insulating bearing.

Specifically, as shown in Figure 7, the outer peripheral surface of the support rod 51 is provided with threads, and the support rod 51 is also provided with a plane section parallel to its axis, and the fixed clamp 52 and the movable clamp 53 are provided with movable holes. , the movable hole includes an arc section and a straight section, the inner diameter of the arc section is greater than the diameter of the support rod 51, and the straight section fits on the plane section, so that the fixed clamp 52 and the movable clamp 53 can be placed on the support rod 51 axial movement.

The support rod 51 is also provided with two locking nuts 55 threadedly engaged with it. The end of the support rod 51 facing away from the mounting base 54 is fixed with a limit end plate 56, and one of the lock nuts 55 presses the fixed clamping plate 52 against the limit position. On the end plate 56, the position of the fixed clamp 52 is fixed; the other lock nut 55 is located on the side of the movable clamp 53 away from the fixed clamp 52, so that the movable clamp 53 is pressed against the insulation by the lock nut 55. on the outer ring of the bearing.

The mounting seat 54 is provided with a connection hole, and an opening is set on one side of the connection hole. The opening of the mounting seat 54 is connected with a fastening bolt 57, which can be controlled to enlarge or shrink the opening by rotating the fastening bolt 57. One end of the support rod 51 is installed in the connecting hole, and the outer ring fixing screw 46 is clamped on the mounting seat 54 by using the fastening bolt 57 to narrow the opening of the connecting hole, so as to realize the fixing of the outer ring fixing screw 46 . The fixed bracket 15 is provided with a vertical mounting groove, and the mounting base 54 leans against the fixed bracket 15, and is fixed on the fixed bracket 15 by bolts passing through the mounting groove, so that the mounting base 54 and the support rod 51 can be adjusted. high.

As shown in Figures 1 and 2, the test cover 20 is made of transparent PVC material as a whole, which is convenient for observing the operating state inside the test cover 20. The test cover 20 includes an upper cover body 21 and a lower cover body 22, and the upper cover body 21 and the lower cover body The lower cover body 22 is fixed on the machine base 10, and the upper cover body 21 is detachably connected to the lower cover body 22 by bolts, so that it is convenient to install and disassemble the insulating bearing after the upper cover body 21 is removed. .

In addition, the environment simulation system is not specifically limited in this embodiment, and it is used to control the change of the internal environment of the test cover 20 . For example, the temperature and humidity inside the test cover 20 can be controlled by setting the temperature and humidity system to spray water mist at a certain temperature inside the test cover 20; by setting the oil mist system to spray a certain amount of oil mist into the test cover 20 to simulate the operation of the insulating bearing Oil mist environment during the process; by setting up a salt mist system, water mist containing salt is sprayed into the test cover 20 to simulate the salt mist environment during the operation of the insulating bearing. Of course, other systems can also be set up to simulate various environments during the operation of the insulated bearing, so as to analyze the influence of various factors on the life of the insulated bearing and improve the authenticity and reliability of the test data.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. An integrated test device for an insulated bearing, comprising:

a stand (10);

the main shaft (30) is rotatably connected to the base (10), the main shaft (30) is arranged in a hollow mode, and a through hole (31) is formed in the side wall of the main shaft (30);

an inner ring holder (40) connected to the main shaft (30) for fixing an inner ring of the insulation bearing to be measured to the main shaft (30);

the outer ring fixer (50) is connected to the base (10) and is used for fixing the outer ring of the insulated bearing to be tested on the base (10);

the driving motor (70) is fixed on the base (10) and is used for driving the main shaft (30) to rotate;

the conductive slip ring (60) comprises a stator and a rotor, the rotor is connected to the main shaft (30), and the stator is relatively fixed with the base (10);

the insulation measuring head comprises a fixed insulation measuring head and a movable insulation measuring head, the fixed insulation measuring head is used for being stuck on the outer ring of the insulation bearing to be measured, and the fixed insulation measuring head is connected with the stator of the conductive slip ring (60) through a wire; the movable insulating measuring head is used for being stuck on the inner ring of the detected insulating bearing, and passes through the through hole (31) through the inside of the main shaft (30) through a lead wire to be connected with the rotor of the conductive slip ring (60);

the testing cover (20) is fixed on the base (10), the inner ring fixer (40) and the outer ring fixer (50) are used for installing the tested insulated bearing inside the testing cover (20), and an environment simulation system is arranged on the testing cover (20).

2. The integrated test device according to claim 1, wherein the inner ring holder (40) comprises:

the connecting ring (41) is sleeved on the main shaft (30) and is fixed relative to the main shaft (30);

the connecting plates (42) are provided with a plurality of connecting rings (41) and distributed on the outer wall of the connecting rings in an array manner;

the number of the inner ring clamping blocks (43) is the same as that of the connecting plates (42) and corresponds to the connecting plates (42) one by one, and the inner ring clamping blocks (43) can slide on the connecting plates (42) along the radial direction of the connecting ring (41);

the fixing assemblies are the same in number as the inner ring clamping blocks (43) and correspond to the inner ring clamping blocks (43) one by one, and are used for fixing the positions of the inner ring clamping blocks (43) on the connecting plate (42).

3. The integrated test device of claim 2, wherein the securing assembly comprises:

a connecting block (45) connected to the inner ring clamping block (43);

and the fixed screw (46) is parallel to the sliding direction of the inner ring clamping block (43) and is in threaded connection with the connecting block (45), and one end of the fixed screw is abutted against the outer wall of the main shaft (30).

4. A comprehensive testing device according to claim 3, wherein the connecting plate (42) is provided with a chute arranged along the radial direction of the connecting ring (41), the end face of the inner ring clamping block (43) facing the connecting plate (42) is provided with a protruding structure (44), and the protruding structure (44) is slidably embedded in the chute;

the connecting block (45) and the inner ring clamping block (43) are respectively positioned at two sides of the connecting plate (42), connecting bolts are arranged on the connecting block (45), and the connecting bolts penetrate through the sliding grooves to be connected with the inner ring clamping block (43).

5. The integrated test device according to claim 2, characterized in that the spindle (30) is provided with a first thread section (32) and a second thread section (33), the guiding slip ring is connected to the spindle (30) via the first thread section (32), and the connecting ring (41) is connected to the spindle (30) via the second thread section (33).

6. The integrated test device according to claim 1, wherein the outer ring holder (50) comprises:

a support rod (51) disposed along the axial direction of the main shaft (30);

the mounting seat (54) is connected to the base (10), and one end of the supporting rod (51) is fixed on the mounting seat (54);

a fixed clamping plate (52) fixed on the supporting rod (51);

the movable clamping plate (53) is slidably connected to the supporting rod (51) so as to clamp the outer ring of the tested insulating bearing on the fixed clamping plate (52) through the movable clamping plate (53).

7. The comprehensive testing device according to claim 6, wherein the outer wall of the supporting rod (51) is provided with a plane section, and the plane section is parallel to the axial direction of the supporting rod (51);

the movable clamping plate (53) is provided with a movable hole, the movable hole comprises an arc-shaped end with the diameter larger than the outer diameter of the supporting rod (51) and a straight line segment attached to the plane, and the movable clamping plate (53) is sleeved on the supporting rod (51) through the movable hole;

the support rod (51) is further provided with threads, and is provided with a locking nut (55) matched with the threads, and the locking nut (55) abuts against one side, away from the fixed clamping plate (52), of the movable clamping plate (53).

8. The comprehensive testing device according to claim 6, wherein the mounting base (54) is provided with a connecting hole, one side of the connecting hole is provided with an opening, the mounting base (54) is provided with a fastening bolt (57) at the opening of the connecting hole, and the supporting rod (51) is arranged in the connecting hole in a penetrating manner.

9. The integrated test device according to claim 8, wherein the stand (10) comprises a fixing bracket (15), a vertical mounting groove is formed in the fixing bracket (15), and the mounting seat (54) is connected to the fixing bracket (15) through the mounting groove by bolts.

10. The integrated test device according to any one of claims 1-9, wherein the test housing (20) comprises an upper housing and a lower housing arranged opposite each other, the lower housing being fixed to the housing (10), the upper housing being detachably connected to the lower housing.

Images