Pendulum type bearing stress wear testing machine

Abstract

The invention provides a pendulum type bearing stress wear testing machine, which comprises a detection table, a driving assembly and a loading assembly, the detection table is provided with a bearing seat, the bearing seat is provided with a shell sleeve in which an outer ring of a bearing to be tested is sleeved, the bearing seat is arranged on the detection table in a sliding manner, the driving assembly comprises a rotating shaft, and the rotating shaft is arranged on the loading assembly. The rotating shaft is driven by a motor to rotate, the rotating shaft extends corresponding to the axial direction of the to-be-tested bearing and can drive the inner ring of the to-be-tested bearing to rotate repeatedly along with the rotating shaft, the loading assembly comprises a loading shaft, the loading shaft is driven by an air cylinder to stretch out and draw back, and the loading shaft extends in the radial direction and can abut against the shell sleeve. Aiming at the defects in the prior art, the invention provides the pendulum type bearing stress wear testing machine capable of simulating the actual operation condition and better acquiring the operation data.

Description

Technical Field

[0001] The invention relates to a bearing test device, in particular to a pendulum type bearing force and wear tester. Background Art

[0002] Bearings are important components used for the rotation support of mechanical bodies. Bearings are widely used and are commonly used in automobiles, home appliances, industry and other fields. Among them, pendulum bearings mainly refer to the scenario where the inner and outer rings need to reciprocate relative to each other at a certain angle. After a long period of operation, this type of bearing is prone to local wear of the raceway and peeling of the rolling element surface, which can cause bearing failure and affect its service life. For this reason, before the bearing leaves the factory, it is necessary to simulate the operating conditions of the periodic reciprocating swing of the bearing, and set the swing speed and loading force as needed to achieve precise control and better obtain operation data for subsequent improvements. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a pendulum-type bearing stress and wear testing machine that can simulate actual operating conditions and better obtain operating data.

[0004] To achieve the above-mentioned purpose, the present invention provides a pendulum-type bearing force and wear testing machine, including a test platform, a driving component and a loading component. The test platform is provided with a bearing seat, and the bearing seat is provided with a shell sleeve for the outer ring of the bearing to be tested to be mounted therein, and the bearing seat is slidably arranged on the test platform. The driving component includes a rotating shaft, and the rotating shaft is driven to rotate by a motor, and the rotating shaft corresponds to the axial extension of the bearing to be tested and can drive the inner ring of the bearing to be tested to rotate repeatedly therewith. The loading component includes a loading shaft, and the loading shaft extends radially and can be driven by a cylinder to retract and form abutment with the shell sleeve.

[0005] The advantages of adopting the above technical solution are: by setting up a test bench, a driving component and a loading component, a bearing seat is set on the test bench, and a shell sleeve for the outer ring of the bearing to be tested to be mounted therein is set on the bearing seat, and then a cylinder-driven retractable loading shaft is set in the loading component, and an axial load is applied by abutting the loading shaft with the shell sleeve mounted on the outside of the bearing to be tested, and a rotating shaft driven by a motor is set in the driving component, so that the rotating shaft corresponds to the axial extension of the bearing to be tested, and can drive the inner ring of the bearing to be tested to rotate. During the test, the bearing to be tested is first mounted in the shell sleeve, and then the bearing seat drives the shell sleeve to slide to the bottom of the loading shaft, and then the cylinder is ventilated to extend the loading shaft to abut on the shell sleeve, and a radial load is applied. Finally, the rotation drives the inner ring to rotate repeatedly with it, which can simulate the situation of being subjected to radial load and repeated swinging under actual operating conditions, better obtain operating data, and facilitate subsequent optimization.

[0006] The present invention can be further configured as follows: the bearing seat includes two mounting plates and a connecting shaft, the two mounting plates are spaced apart, the shell is disposed between the two mounting plates, the connecting shaft is rotatably passed through the two mounting plates and connected to the rotating shaft, and the connecting shaft is plugged into and fitted with the inner ring of the bearing to be tested.

[0007] Through further configuration, two mounting plates and a connecting shaft are arranged in the bearing seat, the mounting plates are spaced apart, the shell is arranged at the interval between the two mounting plates, the connecting shaft that rotates and passes through the two mounting plates is inserted on the inner ring of the bearing to be tested, and the connecting shaft is connected to the rotating shaft, so that when the motor drives the rotating shaft to rotate, the inner ring of the bearing to be tested is driven to rotate.

[0008] The present invention can be further configured as follows: the mounting plate is provided with a mounting hole, a flange and a supporting bearing, the supporting bearing is sleeved in the mounting hole, the connecting shaft is rotatably connected with the mounting plate through the supporting bearing, the flange can be fastened to the end of the mounting hole away from the shell sleeve, and the flanges on the two mounting plates can cooperate to form axial positioning of the supporting bearing and the shell sleeve.

[0009] Through further settings, a mounting hole, a flange and a supporting bearing are set on the mounting plate, the supporting bearing sleeve is installed in the mounting hole to form a rotational connection between the connecting shaft and the mounting plate, and then the flange is fastened to the end of the mounting hole away from the shell sleeve, and the two flanges on the two mounting plates are used to position the supporting bearing and the shell sleeve corresponding to the axial position of the bearing to be tested.

[0010] The present invention can be further configured as follows: the flange includes an abutment portion extending into the mounting hole, the abutment portion is cylindrically arranged, and the abutment portion can axially abut against the outer ring of the supporting bearing, a sleeve member is arranged on the connecting shaft, the sleeve member is sleeved on both sides of the corresponding shell sleeve, and the two ends of the sleeve member can axially abut against the inner rings of the bearing to be tested and the supporting bearing respectively.

[0011] Through further configuration, an abutment portion extending into the mounting hole is provided in the flange, and the abutment portion is provided to be cylindrical in shape and just matches the shape of the outer ring of the supporting bearing, and abuts against the outer ring of the supporting bearing to apply axial pressure, and then a sleeve member is provided on the connecting shaft, so that the two ends of the sleeve member abut against the inner rings of the bearing to be measured and the supporting bearing respectively, thereby defining the position of the bearing to be measured, the supporting bearing and the shell sleeve, thereby forming the positioning of the axial position of the bearing to be measured and the supporting bearing after the flange is installed on the mounting plate.

[0012] The present invention can be further configured as follows: the shell sleeve includes two half shells, ears are extended on both sides of the half shells, the two half shells are assembled to form a sleeve for the outer ring of the bearing to be tested, and the ears relative to the two half shells can fit together and be fastened by bolts.

[0013] Through further configuration, the shell is configured to include two half-shell parts, and the two half-shell parts are spliced ​​together to form a socket connection with the outer ring of the bearing to be tested, which facilitates the installation of the bearing to be tested. Ears are provided on both sides of the half-shell parts, so that bolts can be installed through the relative ears after the two half-shell parts are spliced ​​together to form a fastening, which is convenient for disassembly and assembly.

[0014] The present invention may be further configured as follows: the loading shaft includes an abutment plane located at the lower end, and the shell sleeve is configured in a rectangular shape.

[0015] Through further configuration, the shell is configured to be a rectangle, and a contact plane is provided at the lower end of the loading shaft. The loading shaft contacts the shell through the contact plane at the lower end, thereby ensuring the contact area.

[0016] The present invention can be further configured as follows: a loading frame is provided on the detection platform, the loading frame includes a column and a flat plate above the column, the column is arranged on the peripheral side of the bearing seat and provides support for the flat plate above, the cylinder is placed on the flat plate, and the loading shaft passes through the flat plate and extends toward the shell sleeve.

[0017] Through further settings, an independent loading frame is set on the test bench, a column and a plate above the column are set in the loading frame, the column is set on the bearing of the bearing seat to avoid interference with the bearing seat, and then the cylinder and the loading shaft are installed on the plate, and the column is used to provide support for the cylinder and the loading shaft to ensure the stability of the loading assembly.

[0018] The present invention can be further configured as follows: a guide rail and a side plug strip are provided on the detection platform, a guide groove for guiding sliding along the guide rail is provided below the bearing seat, the guide rail is arranged in an inverted trapezoidal shape, and the gap between the guide rail and the guide groove is matched, and the side plug strip is used to be inserted between the gap between the guide groove and the guide rail and form abutment with both of them respectively.

[0019] Through further configuration, guide rails and side stoppers are provided, and guide grooves for guiding and sliding along the guide rails are provided below the bearing seat, and the guide rails are provided in an inverted trapezoidal shape, which can form vertical limit on the basis of axial guiding cooperation between the guide rails and the guide grooves, and the side stoppers are provided so that after adjusting to the corresponding positions, the friction force can be increased by inserting the side stoppers that abut against the guide grooves and the guide rails respectively, so as to achieve the positioning effect.

[0020] The present invention can be further configured as follows: the driving assembly includes a motor base on which a power supply machine and a rotating shaft are installed, the motor base includes a lower part and a vertical plate, the lower part is longitudinally extended along the guide rail direction, the vertical plate is vertically extended, the motor is fixed on the vertical plate, the rotating shaft is passed through the vertical plate and extends toward the shell sleeve, and the bottom of the motor base is also provided with a guide groove and side plug strip that are the same as those below the bearing seat. Through further configuration, a motor seat is provided for installing the power supply motor and the rotating shaft, and a lower part and a vertical plate are provided on the motor seat. The lower guide rail is extended longitudinally, and the vertical plate is extended vertically to supply the power supply motor and the rotating shaft, so that the overall side view of the motor is L-shaped, thereby ensuring better supporting capacity and stability. Finally, guide grooves and side plugs are also provided under the motor seat to play the role of sliding adjustment and positioning.

[0021] The present invention may be further configured as follows: a coupling is provided on the rotating shaft of the motor, and the rotating shaft is rotatably matched with the connecting shaft through the coupling.

[0022] Through further configuration, a coupling is provided on the rotating shaft of the motor so that the coupling forms a connection between the rotating shaft and the connecting shaft, thereby enabling the rotating shaft to drive the inner ring of the bearing to be tested to rotate through the connecting shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 A top view of an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 1 Sectional view at AA in the middle; Figure 4 Schematic diagram of the coordination between the guide groove, the guide rail and the side plug strip in an embodiment of the present invention; Figure 5 Schematic diagram of the cooperation between the driving assembly and the bearing seat in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a loading component in an embodiment of the present invention; Among them: test table 1; loading frame 11; column 111; plate 112; guide rail 12; side plug strip 13; drive assembly 2; rotating shaft 21; motor 22; motor seat 23; lower part 231; vertical plate 232; coupling 24; loading assembly 3; loading shaft 31; abutment plane 311; cylinder 32; bearing seat 4; mounting plate 41; mounting hole 411; flange 412; abutment part 4121; support bearing 413; connecting shaft 42; sleeve member 43; guide groove 44; shell 5; half shell part 51; ear part 52; bearing to be tested 6. DETAILED DESCRIPTION

[0024] The present invention is a pendulum type bearing force wear testing machine. Figure 1-5 As shown, it includes a test platform 1, a driving component 2 and a loading component 3. The test platform 1 is provided with a bearing seat 4, and the bearing seat 4 is provided with a shell 5 for the outer ring of the bearing 6 to be tested to be mounted therein, and the bearing seat 4 is slidably set on the test platform 1. The driving component 2 includes a rotating shaft 21, and the rotating shaft 21 is driven to rotate by a motor 22, and the rotating shaft 21 corresponds to the axial extension of the bearing to be tested and can drive the inner ring of the bearing 6 to be tested to rotate repeatedly therewith. The loading component 3 includes a loading shaft 31, and the loading shaft 31 extends radially and can be driven by a cylinder 32 to extend and retract to form abutment with the shell 5.

[0025] The bearing seat 4 includes two mounting plates 41 and a connecting shaft 42. The two mounting plates 41 are spaced apart, and the shell 5 is arranged between the two mounting plates 41. The connecting shaft 21 is rotatably passed through the two mounting plates 41 and connected to the rotating shaft 21, and the connecting shaft 21 is plugged into the inner ring of the bearing 6 to be tested.

[0026] The mounting plate 41 is provided with a mounting hole 411, a flange 412 and a supporting bearing 413. The supporting bearing 413 is inserted into the mounting hole 411. The connecting shaft 31 is rotatably connected to the mounting plate 41 through the supporting bearing 413. The flange 412 can be fastened to the end of the mounting hole 411 away from the shell 5, and the flanges 412 on the two mounting plates 41 can cooperate to form axial positioning of the supporting bearing 413 and the shell 5.

[0027] The flange 412 includes an abutment portion 4121 extending into the mounting hole 411. The abutment portion 4121 is cylindrical and can axially abut against the outer ring of the supporting bearing 413. A sleeve member 43 is provided on the connecting shaft 42. The sleeve member 43 is sleeved on both sides of the corresponding shell 5, and the two ends of the sleeve member 43 can axially abut against the inner ring of the bearing to be tested 6 and the supporting bearing 413 respectively.

[0028] The shell 5 includes two half shells 51, and ears 52 are extended on both sides of the half shells 51. The two half shells 51 are assembled to form a sleeve for the outer ring of the bearing 6 to be tested, and the ears 52 of the two half shells 51 can fit together and be fastened by bolts.

[0029] The loading shaft 31 includes an abutting plane 311 at the lower end, and the shell 5 is arranged in a rectangular shape.

[0030] A loading frame 11 is arranged on the detection platform 1, and the loading frame 11 includes a column 111 and a flat plate 112 above the column 111. The column 111 is arranged on the peripheral side of the bearing seat 4 and provides support for the flat plate 112 above. The cylinder 32 is placed on the flat plate 112, and the loading shaft 31 passes through the flat plate 112 and extends toward the shell.

[0031] The detection table 1 is provided with a guide rail 12 and a side plug strip 13. A guide groove 44 for guiding sliding along the guide rail is provided below the bearing seat 4. The guide rail 12 is arranged in an inverted trapezoidal shape, and the gap between the guide rail 12 and the guide groove 44 is matched. The side plug strip 13 is used to be inserted between the gap between the guide groove 44 and the guide rail 12 and form abutment with both of them respectively.

[0032] The driving assembly 2 includes a power supply 22 and a motor base 23 on which a rotating shaft 21 is installed. The motor base 23 includes a lower part 231 and a vertical plate 232. The lower part 231 is longitudinally extended along the guide rail 12, and the vertical plate 232 is vertically extended. The motor 22 is fixed on the vertical plate, and the rotating shaft 21 is passed through the vertical plate 232 and extends toward the shell 5. The lower part of the motor base 23 is also provided with a guide groove 44 and a side plug strip 13 that are the same as those below the bearing seat 4. A coupling 24 is disposed on the rotating shaft 21 of the motor 22 , and the rotating shaft is rotatably matched with the connecting shaft 42 via the coupling 24 .

[0033] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A pendulum bearing force and wear testing machine, characterized in that: It includes a testing platform, a driving component and a loading component. The testing platform is provided with a bearing seat. The bearing seat is provided with a shell sleeve for the outer ring of the bearing to be tested to be mounted therein, and the bearing seat is slidably arranged on the testing platform. The driving component includes a rotating shaft, which is driven to rotate by a motor, and the rotating shaft extends axially corresponding to the bearing to be tested and can drive the inner ring of the bearing to be tested to rotate repeatedly therewith. The loading component includes a loading shaft, which extends radially and can be driven by a cylinder to retract and form abutment with the shell sleeve.

2. The pendulum bearing force wear testing machine according to claim 1, characterized in that: The bearing seat includes two mounting plates and a connecting shaft. The two mounting plates are spaced apart, the shell is arranged between the two mounting plates, the connecting shaft is rotatably passed through the two mounting plates and connected to the rotating shaft, and the connecting shaft is plugged into the inner ring of the bearing to be tested.

3. The pendulum bearing wear tester according to claim 2, characterized in that: The mounting plate is provided with a mounting hole, a flange and a supporting bearing. The supporting bearing is sleeved in the mounting hole. The connecting shaft is rotatably connected to the mounting plate through the supporting bearing. The flange can be fastened to the end of the mounting hole away from the shell sleeve, and the flanges on the two mounting plates can cooperate to form axial positioning of the supporting bearing and the shell sleeve.

4. The pendulum bearing force wear testing machine according to claim 3 is characterized in that: The flange includes an abutment portion extending into the mounting hole, the abutment portion is cylindrically arranged, and the abutment portion can axially abut against the outer ring of the supporting bearing, and a sleeve member is arranged on the connecting shaft, the sleeve member is sleeved on both sides of the corresponding shell, and the two ends of the sleeve member can axially abut against the inner ring of the bearing to be tested and the supporting bearing respectively.

5. The pendulum bearing force wear testing machine according to claim 1, 2, 3 or 4, characterized in that: The shell sleeve includes two half shells, ears are extended on both sides of the half shells, the two half shells are assembled to form a sleeve for the outer ring of the bearing to be tested, and the ears of the two half shells can fit together and be fastened by bolts.

6. The pendulum bearing force wear testing machine according to claim 5, characterized in that: The loading shaft includes an abutment plane at the lower end, and the shell sleeve is arranged in a rectangular shape.

7. The pendulum bearing force wear testing machine according to claim 1, 2, 3 or 4, characterized in that: The detection table is provided with a loading frame, which includes a column and a flat plate above the column. The column is arranged on the peripheral side of the bearing seat and provides support for the flat plate above. The cylinder is placed on the flat plate. The loading shaft passes through the flat plate and extends toward the shell.

8. The pendulum bearing force wear testing machine according to claim 1, 2, 3 or 4, characterized in that: The detection platform is provided with guide rails and side plug strips, and a guide groove for guiding sliding along the guide rail is provided below the bearing seat. The guide rail is arranged in an inverted trapezoidal shape, and the gap between the guide rail and the guide groove is matched. The side plug strip is used to be inserted between the gap between the guide groove and the guide rail and form abutment with both of them respectively.

9. The pendulum bearing force wear testing machine according to claim 8, characterized in that: The driving assembly includes a motor base on which a power supply motor and a rotating shaft are installed. The motor base includes a lower part and a vertical plate. The lower part is longitudinally extended along the guide rail direction, and the vertical plate is vertically extended. The motor is fixed on the vertical plate, and the rotating shaft is passed through the vertical plate and extends toward the shell sleeve. The bottom of the motor base is also provided with a guide groove and side plug strip that are the same as those below the bearing seat.

10. The pendulum bearing force wear testing machine according to claim 9, characterized in that: A coupling is provided on the rotating shaft of the motor, and the rotating shaft is rotatably matched with the connecting shaft through the coupling.

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