Rack for bearing rotation drop test

Abstract

The utility model provides a bearing rotation drop test rack comprising a rack body, the rack body comprises an operation table and a test bench, the operation table is provided with a controller, the test bench is provided with a first motor, a clutch, a transmission member and a mounting seat, and the first motor, the clutch, the transmission member and the mounting seat are arranged on the rack body. The lower end of the transmission part extends to the mounting base and can be in clamping sleeve fit with the mounting base and the two ends of the bearing to be tested, the clutch is connected between the first motor and the upper end of the transmission part, and the clutch can drive the transmission part to rotate under the driving of the first motor; and the controller is used for promoting separation and connection between the clutch and the transmission part. Aiming at the defects in the prior art, the utility model provides a rack for a bearing rotation drop test, which can better simulate the bearing capacity of a bearing during rotation drop during operation.

Description

Technical Field

[0001] The utility model relates to a bench for a bearing rotation drop test. Background Art

[0002] Bearings are important components used for the rotation support of equipment bodies. Bearings are widely used in various fields of our work and life. Depending on the specific application scenarios of bearings, there will be different requirements for bearings. For example, in the process of using magnetic levitation bearings, the moment the rotor loses power, the rotor will instantly fall onto the protective bearing. The rotor drives the bearing to move, and the bearing eventually stops due to dry friction loss. At this time, if the quality of the bearing is unreliable, the bearing will need to be replaced, the machine will be disassembled and reinstalled at the least; at worst, the rotor may be damaged, causing greater losses. For this reason, this type of bearing often needs to undergo a bearing rotation drop test before leaving the factory to test the bearing's ability to withstand such conditions. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a bench for a bearing rotation drop test, which can better simulate the bearing capacity of a bearing under a rotation drop during operation.

[0004] To achieve the above-mentioned purpose, the utility model provides a test bench for a bearing rotation drop test, comprising a frame, wherein the frame comprises an operating table and a test bench, the operating table is provided with a controller, the test bench is provided with a first motor, a clutch, a transmission member and a mounting seat, the lower end of the transmission member extends to the mounting seat and can form a card sleeve fit with the mounting seat and the two ends of the bearing to be tested respectively, the clutch is connected between the first motor and the upper end of the transmission member, and the clutch can drive the transmission member to rotate under the drive of the first motor, and the controller is used to promote the separation and engagement between the clutch and the transmission member.

[0005] The advantages of adopting the above technical solution are: an operating table and a test table are arranged on the frame, a controller is arranged on the operating table, and a first motor, a clutch, a transmission member and a mounting seat are arranged on the test tower, the mounting seat and the transmission member respectively form a sleeve fit with the two ends of the bearing to be tested to position the bearing to be tested, and then the upper end of the transmission member is connected to the first motor through the clutch, and the transmission member can be driven by the clutch to rotate under the drive of the first motor, and finally the clutch is controlled to separate and engage with the transmission member. During the test, the first motor drives the clutch to drive the transmission member to rotate, so that the bearing to be tested between the mounting seat and the transmission member rotates, and then during the rotation process, the clutch and the transmission member are separated by control, so that the bearing to be tested falls during the rotation process, and the clutch is engaged with the transmission member after completion, and this process is repeated to complete the test of the rotation and fall bearing capacity of the bearing to be tested.

[0006] The utility model can be further configured as follows: a mounting plate is provided on the test bench, a limiting cylinder is provided below the mounting plate, the first motor and the clutch are respectively arranged at the upper and lower sides of the mounting plate, and the output end of the first motor is passed through the mounting plate and connected to the clutch below the mounting plate, and the transmission member passes through the limiting cylinder and is connected to the clutch.

[0007] Through further settings, a mounting plate for installing the first motor is set on the test bench, and the first motor and clutch mounting plates are respectively arranged on the upper and lower sides of the mounting plate to provide support for the first motor and the clutch, and a limit cylinder is arranged below the installation to facilitate the use of the limit cylinder to limit and protect the lower part of the clutch and the upper part of the driven member when the clutch is a magnetic suction type.

[0008] The utility model can be further configured as follows: the transmission member includes a transposed shaft and a test shaft, the transposed shaft is provided with a plug-in portion, a socket and a first abutment portion, the upper end of the test shaft is provided with a column portion and a second abutment portion, the plug-in portion is used to be inserted into the clutch, the column portion can be inserted in the socket to form a radial limit for the test shaft and the transposed shaft, and a plurality of screw holes for bolts to pass through are provided at the relative positions of the first abutment portion and the second abutment portion.

[0009] Through further configuration, a transposed shaft and a test shaft are set in the driven part, and the clutch is connected by the plug-in part of the transposed shaft, and then the connection between the device shaft and the test shaft is formed by the plug hole of the transposed shaft, the first abutment part and the column part and the second abutment part of the test shaft. This facilitates the replacement and adjustment of the test shaft, so that the test shaft can be adjusted to different length and weight configurations, better simulating the weight of the rotor corresponding to the bearing to be tested during actual operation, and better approaching the actual operating conditions.

[0010] The utility model can be further configured as follows: a mounting hole is provided on the mounting seat, a first step surface is provided in the mounting hole, the first step surface can be abutted and matched with the lower end of the outer ring of the bearing to be tested, and a second step surface is provided at the lower end of the test shaft, and the second step surface can be abutted and matched with the upper end of the inner ring of the bearing to be tested.

[0011] Through further settings, a mounting hole and a first step surface located in the mounting hole are set on the mounting seat, and a second step surface is set at the lower end of the test shaft. The first step surface and the second step surface respectively form abutment fit with the lower end of the outer ring of the bearing to be tested and the upper end of the inner ring of the bearing to be tested, thereby forming a clamping and positioning for the bearing to be tested.

[0012] The utility model can be further configured as follows: the test bench is provided with a lifting frame and a second motor, the mounting plate is arranged on the lifting frame, the lifting frame includes a driving screw driven to rotate by the second motor, and the driving screw is threadedly connected to the mounting plate.

[0013] Through further settings, a lifting and second motor are set on the test bench, and the second motor drives the driving screw in the lifting frame, so that the driving screw drives the lifting of the mounting plate threadedly connected to it, to drive the lifting of the first motor and the clutch, so as to facilitate the adjustment and replacement of test shafts of different specifications, so that the test shaft can better simulate the corresponding rotor weight when the bearing to be tested is actually running.

[0014] The utility model can be further configured as follows: the lifting frame includes a plurality of guide rods, the plurality of guide rods are slidably penetrated at both sides of the mounting plate, there are two driving screws, and the two driving screws are respectively screwed and matched with the two sides of the mounting plate, and the lower end of the driving screw passes through the bottom of the test bench and meshes with the output end of the second motor through a pulley.

[0015] Through further settings, multiple guide rods are set in the lifting frame, and the multiple guide rods are slidably passed through both sides of the mounting plate to better limit the position of the mounting plate, and the driving screws are set to two on both sides of the mounting plate respectively, so that the lifting and position of the mounting plate are more stable, and finally the driving screw is passed to the bottom of the test bench and meshed with the output end of the second motor through the pulley to avoid occupying the space above the test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 A top view of an embodiment of the utility model;

[0018] Figure 3 For the utility model embodiment Figure 2 Sectional view at AA in the middle;

[0019] Figure 4 For the utility model embodiment Figure 3 Enlarged view of part a;

[0020] Among them: frame 1; operating table 11; test table 12; mounting plate 13; limiting cylinder 14; lifting frame 15; driving screw 151; guide rod 152; second motor 16; first motor 2; clutch 3; transmission member 4; transposition shaft 41; plug-in portion 411; plug hole 412; first abutment portion 413; test shaft 42; column portion 421; second abutment portion 422; second step surface 423; mounting seat 5; mounting hole 51; first step surface 52. DETAILED DESCRIPTION

[0021] The utility model is a bench for carrying out a bearing rotation drop test. Figure 1-4As shown: it includes a frame 1, the frame 1 includes an operating table 11 and a test bench 12, the operating table 11 is provided with a controller, in this embodiment, the clutch is a magnetic structure, the controller is a power switch, the test bench 12 is provided with a first motor 2, a clutch 3, a transmission member 4 and a mounting seat 5, the lower end of the transmission member 4 extends to the mounting seat 5 and can form a card sleeve fit with the mounting seat 5 and the two ends of the bearing to be tested respectively, the clutch 3 is connected between the first motor 2 and the upper end of the transmission member 4, and the clutch 3 can drive the transmission member 4 to rotate under the drive of the first motor 2, and the controller is used to promote the separation and engagement between the clutch 3 and the transmission member 4.

[0022] A mounting plate 13 is provided on the test bench 12, a limiting cylinder 14 is provided below the mounting plate 13, the first motor 2 and the clutch 3 are respectively provided at the upper and lower sides of the mounting plate 13, and the output end of the first motor 2 is passed through the mounting plate 13 and connected to the clutch 3 below the mounting plate 13, and the transmission member 4 passes through the limiting cylinder 14 and is connected to the clutch 3.

[0023] The transmission member 4 includes a transposition shaft 41 and a test shaft 42. The transposition shaft 41 is provided with a plug-in portion 411, a socket 412 and a first abutment portion 413. The upper end of the test shaft 42 is provided with a column portion 421 and a second abutment portion 422. The plug-in portion 411 is used to be inserted into the clutch 3. The column portion 421 can be inserted in the socket 412 to form a radial limit for the test shaft 41 and the transposition shaft 42. The first abutment portion 413 and the second abutment portion 422 are provided at opposite positions with a plurality of screw holes for bolts to pass through.

[0024] The mounting seat 5 is provided with a mounting hole 51, and the mounting hole 51 is provided with a first step surface 52, and the first step surface 52 can abut and cooperate with the lower end of the outer ring of the bearing to be tested. The lower end of the test shaft 42 is provided with a second step surface 423, and the second step surface 423 can abut and cooperate with the upper end of the inner ring of the bearing to be tested.

[0025] The test bench 12 is provided with a lifting frame 15 and a second motor 16 . The mounting plate 13 is provided on the lifting frame 15 . The lifting frame 15 includes a driving screw 151 driven to rotate by the second motor. The driving screw 151 is threadedly connected to the mounting plate 13 .

[0026] The lifting frame 15 includes a plurality of guide rods 152, which are slidably arranged on both sides of the mounting plate 13. There are two driving screws 151, and the two driving screws 151 are respectively screwed and matched with the two sides of the mounting plate 13. The lower end of the driving screw 151 passes through the bottom of the test bench 12 and is meshed with the output end of the second motor 16 through a pulley.

[0027] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A test bench for a bearing rotation drop test, characterized in that: The invention comprises a frame, wherein the frame comprises an operating table and a test table, wherein a controller is arranged on the operating table, wherein a first motor, a clutch, a transmission member and a mounting seat are arranged on the test table, wherein the lower end of the transmission member extends to the mounting seat and can form a card sleeve fit with the mounting seat and the two ends of the bearing to be tested respectively, wherein the clutch is connected between the first motor and the upper end of the transmission member, and the clutch can drive the transmission member to rotate under the drive of the first motor, and wherein the controller is used to promote the separation and engagement between the clutch and the transmission member.

2. The bearing rotation drop test stand according to claim 1, characterized in that: The test bench is provided with a mounting plate, a limiting cylinder is provided below the mounting plate, the first motor and the clutch are respectively arranged at the upper and lower sides of the mounting plate, and the output end of the first motor is passed through the mounting plate and connected to the clutch below the mounting plate, and the transmission member passes through the limiting cylinder and is connected to the clutch.

3. The bearing rotation drop test stand according to claim 1 or 2, characterized in that: The transmission member includes a transposed shaft and a test shaft. The transposed shaft is provided with a plug-in portion, a socket and a first abutment portion. The upper end of the test shaft is provided with a column portion and a second abutment portion. The plug-in portion is used to be inserted into the clutch. The column portion can be inserted in the socket to form a radial limit for the test shaft and the transposed shaft. A plurality of screw holes for bolts to pass through are provided at the opposite positions of the first abutment portion and the second abutment portion.

4. The bearing rotation drop test stand according to claim 3, characterized in that: A mounting hole is provided on the mounting seat, a first step surface is provided in the mounting hole, and the first step surface can abut and cooperate with the lower end of the outer ring of the bearing to be tested. A second step surface is provided at the lower end of the test shaft, and the second step surface can abut and cooperate with the upper end of the inner ring of the bearing to be tested.

5. The bearing rotation drop test stand according to claim 2, characterized in that: The test bench is provided with a lifting frame and a second motor, the mounting plate is arranged on the lifting frame, the lifting frame comprises a driving screw driven to rotate by the second motor, and the driving screw is threadedly connected with the mounting plate.

6. The bearing rotation drop test stand according to claim 5, characterized in that: The lifting frame includes a plurality of guide rods, which are slidably arranged on both sides of the mounting plate. There are two driving screws, and the two driving screws are respectively screwed and matched with the two sides of the mounting plate. The lower end of the driving screw passes to the bottom of the test bench and is meshed with the output end of the second motor through a pulley.

Images