CN117906461A - Birotor bearing tester tool structure - Google Patents

Abstract

The application discloses a tooling structure of a dual-rotor bearing tester, and belongs to the field of tester tooling. The tester comprises a tester shell, wherein a preset environment for testing the bearing can be provided inside the tester shell; a first connecting member for forming a first connecting portion fixed to the inner race of the bearing, a first end portion located outside the tester housing, and a first fixing portion connecting the first connecting portion and the first end portion; a second connecting member for forming a second connecting portion fixed to an outer race of the bearing, a second end portion located outside the tester housing, and a second fixing portion connecting the second connecting portion and the second end portion; the driving assembly is used for driving the first fixing part and the second fixing part to rotate. The application has the beneficial effects that the first end part and the second end part are leaked outside in a mode of driving the first fixing part and the second fixing part to rotate by the driving assembly, so that the instrument for detection is convenient to install.

Description

Birotor bearing tester tool structure

Technical Field

The application relates to the field of tester tools, in particular to a dual-rotor bearing tester tool structure.

Background

The existing dual-rotor bearing tester is mainly connected with an inner ring shaft and an outer ring shaft, two driving systems are respectively arranged at two sides of a tester tool to respectively drive two main shafts, but the shaft ends at two sides are not provided with a bearing detection device, so that the end parts of the inner ring shaft and the outer ring shaft are difficult to install an instrument for detecting a bearing, an instrument for detecting the end parts of the inner ring shaft and the outer ring shaft and an instrument for detecting the inner ring and the outer ring of the bearing.

Disclosure of Invention

The summary of the application is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

To solve the technical problems mentioned in the background section above, some embodiments of the present application provide a dual rotor bearing tester tooling structure, including:

The tester comprises a tester shell, wherein a preset environment for testing the bearing can be provided inside the tester shell;

A first connecting member for forming a first connecting portion fixed to the inner race of the bearing, a first end portion located outside the tester housing, and a first fixing portion connecting the first connecting portion and the first end portion;

a second connecting member for forming a second connecting portion fixed to an outer race of the bearing, a second end portion located outside the tester housing, and a second fixing portion connecting the second connecting portion and the second end portion;

the driving assembly is used for driving the first fixing part and the second fixing part to rotate.

Further, the first connecting piece and the second connecting piece are respectively provided with two groups and are respectively positioned at two sides of the bearing;

The driving assembly is also used for driving the two groups of first connecting pieces to be close to and far away from each other and driving the two groups of second connecting pieces to be close to and far away from each other;

When the two groups of first connecting pieces are close to each other, the two groups of first connecting parts are abutted to two sides of the bearing inner ring so that the first connecting parts are fixed with the bearing inner ring;

When the two groups of second connecting pieces are close to each other, the two groups of second connecting parts are abutted to two sides of the bearing outer ring, so that the second connecting parts are fixed with the bearing outer ring.

Further, a plurality of first abutting end surfaces and first abutting side surfaces are formed on the first connecting portion;

The adjacent first abutting end surfaces are perpendicular to the first abutting side surfaces, the plurality of first abutting end surfaces are respectively used for abutting against the end parts of the bearing inner rings with various specifications, and the plurality of first abutting side surfaces are respectively used for abutting against the inner circular surfaces of the bearing inner rings with various specifications;

a plurality of second abutting end surfaces and second abutting side surfaces are formed on the second connecting part;

the adjacent second abutting end surfaces are perpendicular to the second abutting side surfaces, the plurality of second abutting end surfaces are respectively used for abutting against the end parts of the bearing outer rings with various specifications, and the plurality of second abutting side surfaces are respectively used for abutting against the outer circular surfaces of the bearing outer rings with various specifications.

Further, the first abutting end face is an annular face which is partially matched with the end face of the bearing inner ring;

The second abutting end face is an annular face which is partially matched with the end face of the bearing outer ring;

the first abutting side surface is an annular surface which is partially matched with the inner circular surface of the bearing inner ring;

the second abutting end face is an annular face which is partially matched with the outer circular face of the bearing outer ring.

Further, the first connecting piece further comprises an alignment structure for enabling the bearing to move relative to the first connecting portion and the second connecting portion until the circle center of the first abutting end face coincides with the axis of the bearing inner ring

Or the center of the second abutting end surface coincides with the axis of the bearing outer ring

Or the center of the first abutting side surface coincides with the axis of the bearing inner ring

Or the circle center of the second abutting side surface coincides with the axis of the bearing inner ring.

Further, the alignment structure comprises a first rod body, a second rod body and a plurality of groups of hinging rods;

The hinge rods are distributed in a circumferential array around the axis of the first rod body; the hinge rod forms a hinge end connected with the first rod body and an abutting end far away from the hinge end;

The hinge rods are hinged with the first rod body through the elastic parts, so that the abutting ends of the hinge rods can be positioned in a first state of being close to the axis of the first rod body and forming a passing hole area when the hinge rods are not subjected to driving external force, and the abutting ends are positioned in a second state of being far away from the axis of the first rod body and abutting against the inner circular surface of the bearing inner ring when the hinge rods are subjected to driving external force;

The driving assembly is also used for enabling the first rod body and the second rod body to be close to each other so that the cone part is inserted into the passing hole area; the taper provides for the driving force.

Further, a guide part is arranged on the abutting end, and the abutting end abuts against the inner circular surface of the bearing through the guide part.

Further, the first connecting piece further comprises a first pipe body, wherein the first pipe body is used for forming the first connecting part, the first fixing part and the first end part;

the second connecting piece further comprises a second pipe body, wherein the second pipe body is used for forming the second connecting part, the second fixing part and the second end part;

the first pipe body is positioned in the second pipe body, and the first rod body and the second rod body are both positioned in the first pipe body;

the driving assembly is used for driving the two first pipe bodies to be close to, far away from and rotate, and driving the two second pipe bodies to be close to, far away from and rotate.

Further, the drive assembly includes: the device comprises a first rotary power piece, a second rotary power piece, a displacement power piece, a mounting rack, a transmission pipe body, a guide rod, a spring and a limiting part;

The first rotary power piece is used for driving the first pipe body to rotate, and the second rotary power piece is used for driving the transmission pipe body to rotate;

the guide rod is fixed with the transmission pipe body, a slot is formed in the second pipe body, the guide rod is inserted into the slot, the limiting part is fixed with the part, located in the slot, of the guide rod, the spring is sleeved on the guide rod, and the spring is used for constructing elastic connection between the transmission pipe body and the second pipe body;

The displacement power piece drives the first rotary power piece, the second rotary power piece, the first pipe body, the second pipe body, the transmission pipe body, the guide rod, the spring and the limiting part to be close to and far away from the bearing through the mounting frame.

Further, the first connecting part is detachably connected with the first fixing part; the second connecting part is detachably connected with the second fixing part.

The application has the beneficial effects that:

1. the first fixing part and the second fixing part are driven to rotate by the driving assembly, so that the first end part and the second end part are leaked outside, and an instrument for detection is convenient to install;

2. the inner ring and the outer ring of the bearing are fixed in a manner of clamping the inner ring of the bearing from two sides and clamping the outer ring of the bearing from two sides, so that the bearing is convenient to install and detach;

3. Through the setting of first butt terminal surface, first butt side, second butt terminal surface and second butt side on first connecting portion and the second connecting portion, can adapt to the bearing of equidimension not, be convenient for install and dismantle the bearing of multiple size.

4. Through the arrangement of the alignment structure, the bearing can be automatically clamped through the first connecting part and the second connecting part, and the installation is realized;

5. through the arrangement of the plurality of first abutting end surfaces, the first abutting side surfaces, the second abutting end surfaces and the second abutting side surfaces, when the bearing is clamped, the inner ring of the bearing and the outer ring of the bearing are leaked outside, so that an instrument for detecting the inner ring and the outer ring of the bearing and the detection of the inner ring and the outer ring of the bearing are convenient to install;

6. The detachable connection of the first connecting part and the second connecting part is convenient for replacement and fixing of bearings with more middle models;

7. Through the setting of drive tube, spring and guide bar for first connecting portion and second connecting portion can fix the bearing that bearing inner race and outer lane width are different.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic of an embodiment according to the present application;

FIG. 2 is a schematic structural view of a portion of an embodiment, mainly showing the structure as viewed from above;

FIG. 3 is a schematic view of a portion of an embodiment, primarily showing the construction of the tester housing removed;

FIG. 4 is a schematic structural view of a portion of an embodiment, primarily showing the configuration of the first connector and a portion of surrounding parts;

FIG. 5 is a schematic structural view of a portion of an embodiment, mainly illustrating the structure of the drive assembly;

FIG. 6 is a schematic structural view of a portion of an embodiment, primarily showing the structure of the first rotary power member, the second rotary power member, and a portion of surrounding parts;

FIG. 7 is a schematic structural view of a portion of an embodiment, primarily showing the structure of the drive tube, mounting bracket and portions of surrounding parts;

FIG. 8 is a schematic structural view of a portion of an embodiment, primarily showing the configuration of the first connector and a portion of surrounding parts;

Fig. 9 is a schematic structural view of a part of the embodiment, mainly showing the structures of the first connecting portion and the second connecting portion;

FIG. 10 is a schematic structural view of a portion of an embodiment, primarily showing the structure of the alignment structure;

FIG. 11 is a schematic structural view of a portion of an embodiment, mainly illustrating the structure of the taper;

FIG. 12 is a schematic structural view of a portion of an embodiment, primarily illustrating the cross-sectional structure of FIG. 1;

fig. 13 is an enlarged view of a portion a of fig. 12;

Fig. 14 is an enlarged view of a portion B of fig. 12;

Fig. 15 is an enlarged view of a portion C of fig. 14;

FIG. 16 is a schematic structural view of a portion of an embodiment, primarily illustrating the alignment structure, the first connection and the second connection with the first position of the bearing;

FIG. 17 is a schematic view of a portion of an embodiment, primarily illustrating the alignment structure, the first connection and the second connection with the bearing in a second position;

FIG. 18 is a schematic structural view of a portion of an embodiment, primarily illustrating the alignment structure, the first connection and the second connection with the third position of the bearing;

The schematic structural view of a portion of the embodiment of fig. 19 mainly shows the alignment structure, the first connection portion, and the structure of the second connection portion with the fourth position of the bearing.

Reference numerals:

1. a tester housing;

2. A first connector;

21. a first connection portion; 211. a first abutment end face; 212. a first abutment side surface;

22. a first end;

23. a first fixing portion;

24. An alignment structure; 241. a first rod body; 242. a second rod body; 243. a plurality of groups of hinging rods; 244. an elastic part; 245. a cone portion; 246. a guide part; 2461. an end face; 2462. a side face; 247. a first drive plate; 248. a second drive plate; 249. driving a hydraulic cylinder;

25. A first tube body;

3. A second connector;

31. A second connecting portion; 311. a second abutment end face; 312. the second abutment side surface;

32. A second end;

33. a second fixing portion;

34. a second tube body; 341. an end plate;

4. A drive assembly;

41. A first rotary power member; 411. a first motor; 412. a first drive gear; 413. a first driven gear; 414. a clamping plate; 415. a fourth thrust bearing;

42. a second rotary power member; 421. a second motor; 422. a second drive gear; 423. a second driven gear;

43. A displacement power member;

44. A mounting frame; 441. a push plate;

45. A transmission tube; 451. a convex plate; 452. a mounting plate; 453. a first thrust bearing; 454. a second thrust bearing; 455. a third thrust bearing;

46. a guide rod;

47. A spring;

48. A limit part;

5. A bearing;

6. A mounting table;

7. a base; 71. a guide rail;

8. And a fixing plate.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

1-19, A dual-rotor bearing tester tool structure is disclosed, wherein a dual-rotor bearing is a bearing in which both a bearing inner ring and a bearing outer ring rotate; comprising the following steps: the tester housing 1, the first connector 2, the second connector 3 and the drive assembly 4.

Tester housing 1 the inside of the tester housing 1 may provide a preset environment for testing the bearing 5;

the first connector 2 is used for forming a first connecting part 21 fixed with the inner ring of the bearing 5, a first end 22 positioned outside the tester shell 1 and a first fixing part 23 connecting the first connecting part 21 with the first end 22;

The second connector 3 is used for forming a second connecting part 31 fixed with the outer ring of the bearing 5, a second end part 32 positioned outside the tester shell 1 and a second fixing part 33 connecting the second connecting part 31 with the second end part 32;

The driving assembly 4 is used for driving the first fixing portion 23 and the second fixing portion 33 to rotate.

In the conventional technology, the driving assembly 4 is directly connected with the first end 22 and the second end 32 through the coupling, so that the rotation of the first fixing portion 23, the first connecting portion 21, the second fixing portion 33 and the second connecting portion 31 is realized, so that the space near the first end 22 and the second end 32 is greatly occupied by the driving assembly 4, and the end face of the first end 22 and the end face of the second end 32 are also occupied, and the equipment for monitoring the dual rotor bearing 5 cannot be installed at the first end 22 and the second end 32.

Most importantly, the end face of the first end 22 and the end face of the second end 32 cannot be monitored, for example, the circle runout of the first end 22 and the second end 32 cannot be monitored, so that the number of monitored items in the test process of the bearing 5 is reduced, and the final test result is affected.

According to the invention, the first fixing part 23 and the second fixing part 33 are driven to rotate by the driving assembly 4, so that the space near the first end part 22 and the second end part 32 is not occupied by the driving assembly 4, a plurality of detection tools can be installed near the first end part 22 and the second end part 32, and the number of detection items is increased. The common manner in which the driving assembly 4 drives the first fixing portion 23 and the second fixing portion 33 to rotate is to install a gear on the first fixing portion 23, install a gear on the second fixing portion 33, and locate at a position far away from the end, so that the driving assembly 4 drives the gear of the first fixing portion 23 and the gear of the second fixing portion 33 to rotate through a rotatable gear.

In other embodiments, the first connecting piece 2 and the second connecting piece 3 are provided with two groups, and are respectively positioned at two sides of the bearing 5; the driving component 4 is further used for driving the two groups of first connecting pieces 2 to be close to and far away from each other and driving the two groups of second connecting pieces 3 to be close to and far away from each other; when the two groups of first connecting pieces 2 are close to each other, the two groups of first connecting parts 21 are abutted against two sides of the inner ring of the bearing 5, so that the first connecting parts 21 are fixed with the inner ring of the bearing 5; when the two groups of second connectors 3 approach each other, the two groups of second connecting portions 31 abut against two sides of the outer ring of the bearing 5, so that the second connecting portions 31 are fixed to the outer ring of the bearing 5.

Specifically, the first connection portion 21 has a plurality of first abutment end surfaces 211 and first abutment side surfaces 212 formed thereon; the adjacent first abutting end surfaces 211 and the first abutting side surfaces 212 are perpendicular, the plurality of first abutting end surfaces 211 are respectively used for abutting against the end parts of the inner rings of the bearings 5 with various specifications, and the plurality of first abutting side surfaces 212 are respectively used for abutting against the inner ring surfaces of the inner rings of the bearings 5 with various specifications; a plurality of second abutting end faces 311 and second abutting side faces are formed on the second connecting portion 31;

The adjacent second contact end surfaces 311 are perpendicular to the second contact side surfaces 312, the plurality of second contact end surfaces 311 are respectively used for being in contact with the end parts of the outer rings of the bearings 5 with various specifications, and the plurality of second contact side surfaces 312 are respectively used for being in contact with the outer circumferential surfaces of the outer rings of the bearings 5 with various specifications.

The first abutting end surfaces 211 and the first abutting side surfaces 212 are mutually engaged to form a step surface, and the step surface is used for being matched with inner rings of bearings 5 with various sizes so as to be capable of being abutted against the inner rings of the bearings 5 with various sizes, so that the first connecting piece 2 is fixed with the inner rings of the bearings 5 through the first connecting portion 21. The plurality of second abutment end surfaces 311 and the plurality of second abutment side surfaces are joined to each other to form a stepped surface, the purpose of which is the same as that of the stepped surface formed by the first abutment end surfaces 211 and the second abutment side surfaces, and will not be described in detail.

Simultaneously, two groups of first connecting pieces 2 are close to each other and two groups of second connecting pieces 3 are close to each other, the inner ring of the bearing 5 can be fixed with the first connecting pieces 2, and the outer ring of the bearing 5 is fixed with the second connecting pieces 3, so that the driving assembly 4 can enable the first connecting pieces 2 to drive the inner ring of the bearing 5 to rotate, the second connecting pieces 3 drive the outer ring of the bearing 5 to rotate, the inner ring and the outer ring of the bearing 5 can rotate, and the performance of the double-rotor bearing 5 can be tested better. And through two sets of first connecting pieces 2 being close to each other and keeping away from each other and two sets of second connecting pieces 3 being close to each other and keeping away from each other, the dismantlement and the installation of realization bearing 5 that can be quick have improved the speed of test bearing 5 greatly.

Specifically, the first abutting end surface 211 is an annular surface which is partially matched with the end surface of the inner ring of the bearing 5; the second abutting end face 311 is an annular face which is partially matched with the end face of the outer ring of the bearing 5; the first abutting side surface 212 is an annular surface which is partially matched with the inner circular surface of the inner ring of the bearing 5; the second abutting end face 311 is an annular face partially matching with the outer circumferential face of the outer race of the bearing 5.

Specifically, the first connecting piece 2 further includes an alignment structure 24, where the alignment structure 24 is configured to move the bearing 5 relative to the first connecting portion 21 and the second connecting portion 31 until a center of the first abutting end surface 211 coincides with an axis of an inner ring of the bearing 5 or a center of the second abutting end surface 311 coincides with an axis of an outer ring of the bearing 5 or a center of the first abutting side surface 212 coincides with an axis of an inner ring of the bearing 5 or a center of the second abutting side surface 312 coincides with an axis of an inner ring of the bearing 5.

Specifically, the alignment structure 24 includes a first rod 241, a second rod 242, and a plurality of sets of hinge rods 243; a plurality of groups of hinge rods are circumferentially arrayed around the axis of the first rod body 241; the hinge rod forms a hinge end connected with the first rod body 241 and an abutting end far away from the hinge end; the hinge rods are hinged with the first rod body 241 through the elastic parts 244, so that the abutting ends of the hinge rods 243 can be positioned in a first state of being close to the axis of the first rod body 241 and forming a passing hole area when no driving external force is applied, and in a second state of being far from the axis of the first rod body 241 and abutting against the inner circular surface of the inner ring of the bearing 5 when the driving external force is applied; the second rod 242 is formed with a taper 245, and the driving assembly 4 is further configured to bring the first rod 241 and the second rod 242 close to each other so that the taper 245 is inserted into the passage hole area; the taper 245 provides for the driving force. The elastic portion 244 is a torsion spring.

By providing a mounting table 6 for placing the bearing 5 in the tester housing 1, however, since the axis of the bearing 5 moves up and down after the bearing 5 is placed on the mounting table 6 when the size of the bearing 5 is changed, it is difficult to ensure that the axis of the bearing 5 coincides with the rotational axes of the first and second links 2 and 3, and thus the bearing 5 is aligned by the alignment structure 24. For example, first rod 241 and second rod 242 are close to each other, so that the plurality of hinge rods on first rod 241 are located in the inner ring of bearing 5, then taper 245 of second rod 242 is inserted into the passing hole area, so that the plurality of hinge rods rotate around the hinge ends to the second state, the abutting ends of the hinge rods abut against the inner circular surface of the inner ring of bearing 5, and the plurality of hinge rods are distributed around the circumferential array of the axis of first rod 241, so that the plurality of hinge rods can move bearing 5 up and down until the axis of bearing 5 coincides with the axis of first rod 241, that is, the axis of bearing 5 coincides with the rotation axes of first connecting piece 2 and second connecting piece 3, thus automatically completing the alignment of bearing 5, facilitating the subsequent fixing of first connecting piece 2 with the inner ring of bearing 5 and fixing of second connecting piece 3 with the outer ring of bearing 5.

Specifically, the abutment end is provided with a guide portion 246, and the abutment end abuts against the inner circular surface of the bearing 5 via the guide portion 246. The guide 246 is a guide wheel in this embodiment, and the guide 246 may be a block structure in other embodiments.

The multiple sets of hinge rods 243 are mutually close to rotate under the action of the elastic parts 244 and then rotate until the multiple guide parts 246 are mutually contacted, when the guide parts 246 are guide wheels, the quadrant points of the multiple guide wheels are mutually contacted, a region is formed in the middle of the multiple guide wheels, the region is a passing hole region, the first guide rod 46 and the second guide rod 46 are mutually close to move, the cone 245 of the second rod 242 is inserted into the passing hole region, then the side surface of the cone 245 is abutted with the guide wheels, the guide wheels are mutually separated along with the insertion of the cone 245, then the cone 245 is contacted with the hinge rods, and the cone 245 drives the multiple hinge rods to rotate towards the position when the hinge rods are in the second state until the guide wheels on the abutting ends of the hinge rods are contacted with the inner circle surface of the inner circle of the bearing 5.

The taper portion 245 may be formed by an end surface 2461 and a side surface 2462, the end surface 2461 is a plane, the side surface 2462 is a conical surface, and the size of the end surface 2461 is smaller than the passing hole area. The end surface 2461 may be a curved surface, the end surface 2461 may be larger than the passing hole area, and the end surface 2461 may be inserted into the passing hole area through its curvature, and in this embodiment, the end surface 2461 is preferably a curved surface. When the tapered portion 245 moves to the point where the end surface 2461 contacts the end of the first rod 241 where the hinge rod is mounted, the end surface 2461 can expand the hinge rod to a position where the hinge rod forms an angle of 150-170 ° with the axis of the first rod 241.

Specifically, the first connecting piece 2 further includes a first pipe body 25, where the first pipe body 25 is used to form the first connecting portion 21, the first fixing portion 23, and the first end portion 22; the second connecting member 3 further includes a second pipe body 34, and the second pipe body 34 is used for forming the second connecting portion 31, the second fixing portion 33, and the second end portion 32.

The first pipe body 25 is located inside the second pipe body 34, and the first rod body 241 and the second rod body 242 are both located inside the first pipe body 25; the driving assembly 4 is configured to drive the two first pipes 25 to approach, separate from and rotate, and drive the two second pipes 34 to approach, separate from and rotate.

Specifically, the driving assembly 4 includes: the first rotary power member 41, the second rotary power member 42, the displacement power member 43, the mounting frame 44, the transmission tube 45, the guide rod 46, the spring 47 and the limit part 48;

The first rotary power member 41 is configured to drive the first pipe body 25 to rotate, and the second rotary power member 42 is configured to drive the transmission pipe body 45 to rotate; the guide rod 46 is fixed with the transmission pipe body 45, a slot is formed in the second pipe body 34, the guide rod 46 is inserted into the slot, the limiting part 48 is fixed with the part of the guide rod 46 in the slot, the spring 47 is sleeved on the guide rod 46, and the spring 47 is used for constructing elastic connection between the transmission pipe body 45 and the second pipe body 34; the spring 47 is a pressure spring 47. The limiting portion 48 is a plate body, the limiting portion 48 is located inside the second pipe body 34, and the limiting portion 48 is used for placing the guide rod 46 to be separated from the slot.

The displacement power member 43 drives the first rotary power member 41, the second rotary power member 42, the first pipe 25, the second pipe 34, the transmission pipe 45, the guide rod 46, the spring 47 and the limiting portion 48 to approach and separate from the bearing 5 through the mounting frame 44. The second fixing portion 33 is a drive tube, and the second end portion 32 is an end portion of the drive tube. The first fixing portion 23 is a position where the first tube 25 is connected to the first rotary power member 41, and the first end portion 22 is an end portion of the first tube 25.

The second tube 34 is slidably connected to the tester housing, the two ends of the second tube 34 form end plates 341, and the end plates 341 are in contact with and slidably connected to the outer wall surface of the first tube 25, so that the second tube 34 is slidably connected to the first tube 25. The transmission tube 45 is provided with a projection 451 and a mounting plate 452, and a first thrust bearing 5453, a second thrust bearing 5454, and a third thrust bearing 5455 are provided between the projection 451 and the mounting plate 452. The second rotary power member 42 includes a second motor 421, a second driving gear 422, and a second driven gear 423, the second driven gear 423 is fixed to the transmission pipe 45, and both side surfaces of the second driven gear 423 are respectively abutted against the first thrust bearing 5453 and the second thrust bearing 5454. The second driving gear 422 is connected to an output end of the second motor 421. The mounting frame 44 forms a push plate 441, the second motor 421 is mounted on the push plate 441, the push plate 441 is abutted with one end of the second thrust bearing 5454 away from the second driven gear 423, the third thrust bearing 5455 is abutted with one end of the push plate 441 away from the second thrust bearing 5454, the mounting plate 452 is fixed with the transmission pipe body 45, and the mounting plate 452 is abutted with one end of the third thrust bearing 5455 away from the push plate 441. The displacement power piece 43 is a hydraulic cylinder, and an output rod of the displacement power piece 43 is pushed out outwards and drives the mounting frame 44 to move away from the bearing 5, and the output rod of the displacement power piece 43 is retracted inwards and drives the mounting frame 44 to move close to the bearing 5, so that the installation space of the displacement power piece 43 is saved. The lower part of the tester shell 1 is provided with a base 7, the base 7 is used for installing a tester shell, the base 7 is provided with a guide rail 71, and the guide rail 71 is in sliding connection with the mounting frame 44 and is used for guiding the movement of the mounting frame 44.

The fixed plate 8 is mounted on the push plate 441, the fixed plate 8 is fixed with the push plate 441, the fixed plate 8 is used for mounting the first rotary power member 41, and the first rotary power member 41 comprises a first motor 411, a first driving gear 412 and a first driven gear 413. The first driven gear 413 is fixed to the first pipe 25, the first driving gear 412 is connected to the output end of the first motor 411, and the first driven gear is mounted on the fixing plate 8. Wherein the first driven gear 413 and the second driven gear 423 are spaced apart such that there is enough space between the first driven gear 413 and the second driven gear 423 to install the instrument for detecting the rotation state of the second tube 34 of the bearing 5. The first tube 25 is further provided with two clamping plates 414, and the clamping plates 414 are abutted against the mounting plate 452 and the protruding plate 451 through the fourth thrust bearing 5415.

The end of the first rod 241 is fixedly provided with a first transmission plate 247, and the end of the second rod 242 is provided with a second transmission plate 248. The first transmission plate 247 or the second transmission plate 248 is provided with a driving hydraulic cylinder 249, the driving hydraulic cylinder 249 drives the first transmission plate 247 or the second transmission plate 248 to approach and depart from the tester housing 1, so that the first rod body 241 and the second rod body 242 approach and depart from each other, preferably the driving hydraulic cylinder 249 is arranged on the first transmission plate 247, and the second transmission plate 248 is fixed with the tester base 7 through a rod.

In other embodiments, both the first drive plate 247 and the second drive plate 248 are provided with drive hydraulic cylinders 249. And the guide portion 246 is a block structure that can form a passage hole area.

Specifically, a V-shaped block for placing the bearing 5 may be provided on the mount 6.

Specifically, the first connecting portion 21 is detachably connected to the first fixing portion 23; the second connecting portion 31 is detachably connected to the second fixing portion 33.

Specifically, the tester housing 1 is composed of a detachable upper housing and lower housing, so that the upper housing and lower housing are detached to perform an operation of putting the bearing 5 on the V-block.

The working flow is as follows:

The bearing 5 is placed on the V-shaped block, and the driving hydraulic cylinder 249 drives the first rod 241 to move close to the second rod 242. The cone 245 on the second rod body 242 is inserted into the passing hole area, then the multiple groups of hinging rods 243 on the first rod body 241 mutually rotate to the second state, and the guide wheels on the multiple groups of hinging rods 243 are abutted with the inner circular surface of the inner ring of the bearing 5.

The displacement power piece 43 drives the mounting frame 44 to move close to the bearing 5, the mounting frame 44 drives the second driven gear 423 and the transmission pipe 45 to move close to the bearing 5 through the push plate 441, the first thrust bearing 5453 and the second thrust bearing 5454, and the transmission pipe 45 synchronously moves with the transmission pipe 45 through the convex plate 451, the mounting plate 452, the fourth thrust bearing 5415 and the clamping plate 414. Then, the driving tube 45 drives the guide rod 46 to move, the spring 47 is compressed, the second tube 34 is driven to move close to the bearing 5, the second abutting portion on the second tube 34 abuts against the outer ring of the bearing 5, then the first abutting portion on the first tube 25 does not abut against the inner ring of the bearing 5, and the spring 47 is compressed, so that the second abutting portion abuts against the outer ring of the bearing 5, and then the first abutting portion abuts against the inner ring of the bearing 5.

In this way, the first abutting portion and the second abutting portion can fix the bearing 5 having different widths of the inner ring and the outer ring.

The hydraulic cylinder 249 is driven to move the first push rod and the second push rod away from each other, and the guide portion 246 on the hinge rod does not contact the inner circumferential surface of the inner race of the bearing 5.

The first motor 411 drives the first driven gear 413 to rotate through the first driving gear 412, and the first driven gear 413 drives the first pipe 25 to rotate, so that the inner ring of the bearing 5 is driven to rotate. The second motor 421 drives the second driven gear 423 to rotate through the second driving gear 422, and the second driven gear 423 drives the second pipe 34 to rotate, so as to drive the outer ring of the bearing 5 to rotate. The rotation directions of the inner ring of the bearing 5 and the outer ring of the bearing 5 are opposite or the same, and the rotation speeds are different.

The first tube 25, the second tube 34 or the bearing 5 is then monitored by the detection instrument.

After the test is completed, the displacement power member 43 moves the mounting frames 44 away from each other. So that the driving tube 45 drives the second tube 34 to move away from each other through the guide rod 46 and the limiting portion 48, and the pushing plate 441 drives the driving tube 45 to move away from the bearing 5 through the third thrust bearing 5455 and the mounting plate 452. The drive tube 45 directly drives the first tubes 25 away from each other.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims (10)

1. The utility model provides a birotor bearing tester frock structure which characterized in that includes:

The tester comprises a tester shell, wherein a preset environment for testing the bearing can be provided inside the tester shell;

A first connecting member for forming a first connecting portion fixed to the inner race of the bearing, a first end portion located outside the tester housing, and a first fixing portion connecting the first connecting portion and the first end portion;

a second connecting member for forming a second connecting portion fixed to an outer race of the bearing, a second end portion located outside the tester housing, and a second fixing portion connecting the second connecting portion and the second end portion;

the driving assembly is used for driving the first fixing part and the second fixing part to rotate.

2. The dual rotor bearing tester tooling structure of claim 1, wherein: the first connecting piece and the second connecting piece are respectively provided with two groups and are respectively positioned at two sides of the bearing; the driving assembly is also used for driving the two groups of first connecting pieces to be close to and far away from each other and driving the two groups of second connecting pieces to be close to and far away from each other; when the two groups of first connecting pieces are close to each other, the two groups of first connecting parts are abutted to two sides of the bearing inner ring so that the first connecting parts are fixed with the bearing inner ring; when the two groups of second connecting pieces are close to each other, the two groups of second connecting parts are abutted to two sides of the bearing outer ring, so that the second connecting parts are fixed with the bearing outer ring.

3. The dual rotor bearing tester tooling structure of claim 1, wherein: a plurality of first abutting end surfaces and first abutting side surfaces are formed on the first connecting part; the adjacent first abutting end surfaces are perpendicular to the first abutting side surfaces, the plurality of first abutting end surfaces are respectively used for abutting against the end parts of the bearing inner rings with various specifications, and the plurality of first abutting side surfaces are respectively used for abutting against the inner circular surfaces of the bearing inner rings with various specifications; a plurality of second abutting end surfaces and second abutting side surfaces are formed on the second connecting part; the adjacent second abutting end surfaces are perpendicular to the second abutting side surfaces, the plurality of second abutting end surfaces are respectively used for abutting against the end parts of the bearing outer rings with various specifications, and the plurality of second abutting side surfaces are respectively used for abutting against the outer circular surfaces of the bearing outer rings with various specifications.

4. A birotor bearing tester tooling structure as claimed in claim 3, wherein: the first abutting end face is an annular face which is partially matched with the end face of the bearing inner ring; the second abutting end face is an annular face which is partially matched with the end face of the bearing outer ring; the first abutting side surface is an annular surface which is partially matched with the inner circular surface of the bearing inner ring; the second abutting end face is an annular face which is partially matched with the outer circular face of the bearing outer ring.

5. The dual rotor bearing tester tooling structure of claim 3 or 4, wherein: the first connecting piece further comprises an alignment structure, wherein the alignment structure is used for enabling the center of the circle of the first abutting end face to be overlapped with the axis of the bearing inner ring when the bearing moves relative to the first connecting part and the second connecting part; or the circle center of the second abutting end surface coincides with the axis of the bearing outer ring; or the circle center of the first abutting side surface coincides with the axis of the bearing inner ring; or the circle center of the second abutting side surface coincides with the axis of the bearing inner ring.

6. The dual rotor bearing tester tooling structure of claim 5, wherein: the alignment structure comprises a first rod body, a second rod body and a plurality of groups of hinging rods; the hinge rods are distributed in a circumferential array around the axis of the first rod body; the hinge rod forms a hinge end connected with the first rod body and an abutting end far away from the hinge end; the hinge rods are hinged with the first rod body through the elastic parts, so that the abutting ends of the hinge rods can be positioned in a first state of being close to the axis of the first rod body and forming a passing hole area when the hinge rods are not subjected to driving external force, and the abutting ends are positioned in a second state of being far away from the axis of the first rod body and abutting against the inner circular surface of the bearing inner ring when the hinge rods are subjected to driving external force; the driving assembly is also used for enabling the first rod body and the second rod body to be close to each other so that the cone part is inserted into the passing hole area; the taper provides for the driving force.

7. The dual rotor bearing tester tooling structure of claim 6, wherein: the abutting end is provided with a guide part, and the abutting end abuts against the inner circular surface of the bearing through the guide part.

8. The dual rotor bearing tester tooling structure of claim 6, wherein: the first connecting piece further comprises a first pipe body, wherein the first pipe body is used for forming the first connecting part, the first fixing part and the first end part; the second connecting piece further comprises a second pipe body, wherein the second pipe body is used for forming the second connecting part, the second fixing part and the second end part; the first pipe body is positioned in the second pipe body, and the first rod body and the second rod body are both positioned in the first pipe body; the driving assembly is used for driving the two first pipe bodies to be close to, far away from and rotate, and driving the two second pipe bodies to be close to, far away from and rotate.

9. The dual rotor bearing tester tooling structure of claim 1, wherein: the drive assembly includes: the device comprises a first rotary power piece, a second rotary power piece, a displacement power piece, a mounting rack, a transmission pipe body, a guide rod, a spring and a limiting part; the first rotary power piece is used for driving the first pipe body to rotate, and the second rotary power piece is used for driving the transmission pipe body to rotate; the guide rod is fixed with the transmission pipe body, a slot is formed in the second pipe body, the guide rod is inserted into the slot, the limiting part is fixed with the part, located in the slot, of the guide rod, the spring is sleeved on the guide rod, and the spring is used for constructing elastic connection between the transmission pipe body and the second pipe body; the displacement power piece drives the first rotary power piece, the second rotary power piece, the first pipe body, the second pipe body, the transmission pipe body, the guide rod, the spring and the limiting part to be close to and far away from the bearing through the mounting frame.

10. The dual rotor bearing tester tooling structure of claim 9, wherein: the first connecting part is detachably connected with the first fixing part; the second connecting part and the second fixing part can be detachably connected.