A clamping mechanism for testing brakes on a test bench

Abstract

The present invention relates to the technical field of brake detection, and specifically discloses a clamping mechanism for testing brakes on a test bench, comprising: a support seat, a clamping part 1, a moving part, an elastic part 1, a rotating part, a driving part, an elastic part 2 and a clamping part 2, wherein the clamping part 2 can clamp and fix a rotating shaft, the moving part can be close to the rotating shaft, and the elastic part 1 pushes the support seat to move, so that after a brake disc on an electromagnetic brake contacts the end of the rotating shaft, the elastic part 1 is compressed, the driving part extends into a circular hole with a groove on the brake disc, and compresses the elastic part 2, the rotating part can rotate, so that the driving part is clamped into the groove of the circular hole, thereby driving the brake disc to rotate, and after the brake disc is aligned with the rotating shaft, the elastic part 1 pushes the support seat, so that the brake disc is sleeved on the rotating shaft; the clamping mechanism for testing brakes on a test bench of the present invention does not require manual alignment and installation by detection personnel, thereby improving the torque detection efficiency of large quantities of electromagnetic brakes.

Description

Technical Field

[0001] The invention relates to the technical field of brake detection, and in particular to a clamping mechanism for brake detection on a test bench. Background Art

[0002] The electromagnetic brake is a connector that transmits the torque of the active side to the passive side. It can be freely connected, disconnected or braked as needed. The electromagnetic brake has the advantages of compact structure, simple operation, sensitive response, long life, reliable use, and easy remote control. In order to ensure the normal use of the electromagnetic brake, the electromagnetic brake is usually subjected to torque testing. The torque testing device is usually provided with a rotating shaft with a protrusion, and the brake disc of the electromagnetic brake is provided with a round hole with a groove. When the electromagnetic brake is subjected to torque testing, the brake disc of the electromagnetic brake is mounted on the rotating shaft with a protrusion, and then the electromagnetic brake is clamped and fixed so that the electromagnetic brake can be subjected to subsequent torque testing.

[0003] A Chinese patent application document with publication number CN115265889A discloses a torque testing device for an electromagnetic brake, including a base and a torque tester, wherein the base is provided with a sliding mechanism, the base is provided with a magnetic powder brake, one end of the magnetic powder brake is connected with a coupling, and is connected to the torque tester through the coupling, and one end of the torque tester is provided with a connector; the device also includes a clamping assembly, which is installed on the sliding mechanism, and the clamping assembly includes a mounting disk, a rotating drum and a clamping claw, the end surface of the mounting disk is provided with a sliding through groove laid along its radial direction, the clamping claw passes through the sliding through groove, the middle part of the mounting disk is provided with a central axis for loading the brake body, the front end surface of the rotating drum is provided with a spiral guide rail that slides with the tail end of the clamping claw, and the axial height of the spiral guide rail gradually increases from the outside to the inside, and the sliding mechanism can make the central axis move toward and connect with the connector, so as to realize quick and convenient installation of the brake body to be tested, simple operation, and meet the testing of various types of brakes.

[0004] However, the above patent application documents still have the following shortcomings: when the brake disc of the electromagnetic brake is mounted on the rotating shaft with a protrusion, it is necessary to manually adjust the angle of the brake disc so that the circular hole with the groove on the brake disc is aligned with the rotating shaft with the protrusion, which can easily reduce the torque detection efficiency of large quantities of electromagnetic brakes. Summary of the invention

[0005] The present invention provides a clamping mechanism for testing brakes on a test bench, aiming to solve the problem in the related art that the angle of a brake disc needs to be manually adjusted so that a circular hole with a groove on the brake disc is aligned with a rotating shaft with a protrusion, which easily reduces the torque detection efficiency of a large number of electromagnetic brakes.

[0006] The clamping mechanism for brake detection of the test bench of the present invention comprises: a driving member, a detection mechanism and a rotating shaft, wherein the driving member is connected to the rotating shaft, and the rotating shaft is connected to the detection mechanism, the rotating shaft comprises an axis body and a protrusion, and further comprises: a mounting seat, a supporting seat, a clamping part 1, a moving part, an elastic part 1, a rotating part, a driving part, an elastic part 2 and a clamping part 2, the supporting seat is connected to the mounting seat, the clamping part 1 is installed on the supporting seat, the clamping part 1 can clamp and fix the electromagnetic brake, the elastic part 1 is connected between the moving part and the supporting seat, the rotating part is rotatably connected to the moving part, and the driving part is plugged into the rotating part The second elastic part is connected between the driving part and the rotating part, the second clamping part is installed on the mounting seat and is used to clamp and fix the rotating shaft. The moving part can approach the rotating shaft, and the first elastic part pushes the support seat to move, so that the brake disc on the electromagnetic brake contacts the end of the rotating shaft, the first elastic part is compressed, the driving part extends into the circular hole with a groove on the brake disc, and compresses the second elastic part. The rotating part can rotate so that the driving part is clamped into the groove of the circular hole, thereby driving the brake disc to rotate. After the brake disc is aligned with the rotating shaft, the first elastic part pushes the support seat so that the brake disc is sleeved on the rotating shaft.

[0007] Beneficial effect: When the rotating part rotates, the brake disc is driven to rotate through the driving part. After the circular hole with a groove on the brake disc is aligned with the rotating shaft, the elastic part pushes the electromagnetic brake to make the brake disc sleeve on the rotating shaft. No manual operation by the inspection personnel is required, which improves the torque detection efficiency of large-scale electromagnetic brakes.

[0008] Preferably, it also includes a blocking part and a telescopic part three, the blocking part is connected to the mounting seat, the telescopic part three is connected to the moving part, the support seat is located between the blocking part and the telescopic part three, and the support seat can be clamped and fixed by the blocking part and the telescopic part three.

[0009] Preferably, the support seat is connected with a telescopic part 1, both ends of the telescopic part 1 are connected with connecting arms, and two clamping parts 1 are provided, and the two clamping parts 1 are respectively connected to the two connecting arms. The effect is that the two connecting arms can be driven to move closer to or away from each other by the telescopic part 1, thereby driving the two clamping parts to clamp and fix the electromagnetic brake.

[0010] Preferably, a slope is provided on the side of the driving part close to the electromagnetic brake, which has the effect that the driving part can be easily extended into the circular hole with a groove on the brake disc through the slope.

[0011] Preferably, the moving part is connected to a driving source, and the rotating part is connected to an output shaft of the driving source.

[0012] Preferably, the mounting seat is connected with a telescopic portion 4, and the clamping portion 2 is connected to the telescopic portion 4. The effect is that the telescopic portion 4 can drive the clamping portion 2 to clamp and fix the rotating shaft to prevent the rotating shaft from rotating when the brake disc is aligned with the rotating shaft.

[0013] Preferably, an oil coating member is also included for coating the end of the rotating shaft with lubricating oil.

[0014] Preferably, the oil-coating member includes a lifting part, a third elastic part, a pressure-bearing part and an oil-coating part, the lifting part is inserted into the support seat, the third elastic part is connected between the lifting part and the support seat, the pressure-bearing part is connected to the lifting part, and the oil-coating part is connected to the lifting part. The effect is that the lubricating oil can be applied to the end of the rotating shaft through the oil-coating part, thereby reducing the friction when the brake disc is aligned with the rotating shaft.

[0015] The beneficial effects of the present invention are:

[0016] 1. After the driving part is inserted into the circular hole with a groove on the brake disc, the brake disc is driven to rotate through the driving part when the rotating part rotates. After the circular hole with a groove on the brake disc is aligned with the rotating shaft, the electromagnetic brake is pushed by the elastic part to make the brake disc sleeve on the rotating shaft. Manual operation by the inspection personnel is unnecessary, thereby improving the torque detection efficiency of large quantities of electromagnetic brakes.

[0017] 2. The lubricating oil can be applied to the end of the rotating shaft through the oil coating part to reduce the friction when the brake disc is aligned with the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main perspective three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the rotating shaft of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the clamping member 1 and the clamping member 2 of the present invention.

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the adjustment locking piece of the present invention.

[0023] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the adjustment locking member of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the oil-coated part of the present invention.

[0025] Figure 8 It is another three-dimensional structural schematic diagram of the oil-coated part of the present invention.

[0026] Reference numerals:

[0027] 1. Workbench; 2. Driving member; 3. Detection mechanism; 4. Rotating shaft; 41. Shaft body; 42. Protrusion; 5. Clamping mechanism; 51. Mounting seat; 52. Clamping member 1; 521. Support seat; 522. Telescopic part 1; 523. Connecting arm; 524. Clamping part 1; 53. Adjusting member; 531. Moving part; 532. Telescopic part 2; 533. Elastic part 1; 534. Rotating part; 535. Driving source; 536. Driving part; 5361. Inclined surface; 537. Elastic part 2; 538. Telescopic part 3; 539. Blocking part; 54. Clamping member 2; 541. Telescopic part 4; 542. Clamping part 2; 55. Oiling member; 551. Lifting part; 552. Elastic part 3; 553. Pressure-bearing part; 554. Oiling part DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] like Figures 1 to 8 As shown, the clamping mechanism for brake detection on the test bench of the present invention comprises a workbench 1, a driving member 2, a detection mechanism 3, a rotating shaft 4 and a clamping mechanism 5. The driving member 2, the detection mechanism 3 and the clamping mechanism 5 are all connected to the workbench 1, the detection mechanism 3 is located between the driving member 2 and the clamping mechanism 5, the driving member 2 is a driving motor, the rotating shaft 4 is connected to the output shaft of the driving motor, and the rotating shaft 4 is connected to the detection mechanism 3, the clamping mechanism 5 is used to clamp and fix the electromagnetic brake, so as to ensure the stability of the torque detection of the electromagnetic brake, and make the brake disc of the electromagnetic brake plugged with one end of the rotating shaft 4, start the driving member 2 to drive the rotating shaft 4, so that the rotating shaft 4 drives the brake disc of the electromagnetic brake to rotate, and the torque of the electromagnetic brake is detected by the detection mechanism 3.

[0030] like Figures 1 to 8 As shown, the rotating shaft 4 includes a shaft body 41, and a protrusion 42 is arranged on the shaft body 41. The protrusion 42 and the shaft body 41 are an integrally formed structure. The clamping mechanism 5 includes a mounting seat 51, a clamping member 1 52, an adjusting member 53 and a clamping member 2 54. The mounting seat 51 is connected to the workbench 1, and the clamping member 1 52, the adjusting member 53 and the clamping member 2 54 are all mounted on the mounting seat 51. The clamping member 1 52 is used to clamp and fix the electromagnetic brake. The adjusting member 53 can align the brake disc of the electromagnetic brake with the rotating shaft 4, so that the circular hole with the groove on the brake disc is aligned with the shaft body 41 and the protrusion 42, and the brake disc of the electromagnetic brake is sleeved on the rotating shaft 4, without the need for manual adjustment by the inspection personnel, thereby improving the torque detection efficiency of a large number of electromagnetic brakes. The clamping member 2 54 is connected to the mounting seat 51, and can clamp and fix the rotating shaft 4 to prevent the rotating shaft 4 from rotating when it is aligned with the brake disc of the electromagnetic brake.

[0031] Continue to refer Figures 1 to 8 As shown, the clamping member 52 includes a support seat 521, a telescopic portion 522, a connecting arm 523 and a clamping portion 524. The support seat 521 is slidably connected to the mounting seat 51. A mounting groove is provided on the inner side of the support seat 521, and the mounting groove is adapted to the housing of the electromagnetic brake. The telescopic portion 522 is connected to the support seat 521. The telescopic portion 522 is a double-headed cylinder. The connecting arm 523 and the clamping portion 524 are both provided in two numbers. The two connecting arms 523 are respectively connected to the two ends of the double-headed cylinder. The two clamping portions 524 are respectively connected to the two connecting arms 523. After the electromagnetic brake is inserted into the mounting groove of the support seat 521, the telescopic portion 522 is started to drive the two connecting arms 523 to approach each other, so that the two clamping portions 524 are close to each other and the electromagnetic brake is clamped and fixed.

[0032] Continue to refer Figures 1 to 8 As shown, the adjusting member 53 includes a moving part 531, a telescopic part 532, an elastic part 533, a rotating part 534, a driving source 535, a driving part 536, an elastic part 537 and a blocking part 539. The moving part 531 is slidably connected to the mounting seat 51, the telescopic part 532 is connected to the mounting seat 51, the telescopic part 532 is a single-head cylinder, the telescopic end of the telescopic part 532 is connected to the moving part 531, the elastic part 533 is connected between the moving part 531 and the supporting seat 521, and the elastic part 537 is connected to the supporting seat 521. 33 is an elastic sheet, the rotating part 534 is rotatably connected to the moving part 531, the driving source 535 is connected to the moving part 531, the driving source 535 is a motor, the output shaft of the driving source 535 is connected to the rotating part 534, the driving part 536 is inserted into the rotating part 534, the elastic part 537 is connected between the driving part 536 and the rotating part 534, the elastic part 537 is a spring, and a slope 5361 is provided on the side of the driving part 536 close to the electromagnetic brake, and the blocking part 539 is connected to the mounting seat 51.

[0033] The telescopic part 2 532 is started to push the moving part 531 to move toward the rotating shaft 4, and the elastic part 1 533 pushes the support seat 521 to move toward the rotating shaft 4. When the circular hole with the groove on the brake disc is not aligned with the rotating shaft 4, the brake disc contacts the rotating shaft 4, and the electromagnetic brake is blocked to stop the movement of the support seat 521. At this time, the moving part 531 continues to move toward the rotating shaft 4 and compresses the elastic part 1 533. Through the inclined surface 5361 of the driving part 536, the rotating part 534 brings the driving part 536 into the circular hole with the groove on the brake disc and compresses the elastic part 2 537. Then, the driving source 535 is started to rotate the rotating part 534 with the driving part 536. When the driving part 536 moves to the groove of the circular hole on the brake disc, the elastic part 2 537 pushes the driving part 536 to extend into the groove of the circular hole on the brake disc. At this time, when the rotating part 534 rotates, the brake disc can be driven to rotate through the driving part 536. After the circular hole with the groove on the brake disc is aligned with the rotating shaft 4, the support seat 521 is pushed toward the rotating shaft 4 under the action of the elastic part 1 533, so that the brake disc is mounted on the rotating shaft 4, and the support seat 521 is in contact with the blocking part 539. At this time, the rotating part 534 and the driving part 536 are also separated from the brake disc, so that the electromagnetic brake is installed on the rotating shaft 4 to improve the torque detection efficiency of large quantities of electromagnetic brakes.

[0034] Continue to refer Figures 1 to 8 As shown, the adjustment member 53 also includes a telescopic portion 3 538, which is connected to the moving portion 531. The telescopic portion 3 538 is a single-head cylinder with the telescopic end facing the support seat 521. The blocking portion 539 and the telescopic portion 3 538 are respectively located on both sides of the support seat 521. After the electromagnetic brake is installed on the rotating shaft 4, the telescopic portion 3 538 is started, and the mounting seat 51 is squeezed by the telescopic portion 3 538, and under the action of the blocking portion 539, the mounting seat 51 is fixedly clamped.

[0035] Continue to refer Figures 1 to 8 As shown, the clamping member 54 includes a telescopic portion 4 541 and a clamping portion 542. The telescopic portion 4 541 is a double-headed cylinder, and the clamping portion 542 is provided in two. The two clamping portions 542 are respectively connected at the two ends of the telescopic portion 4 541. Starting the telescopic portion 4 541 can drive the two clamping portions 542 to approach each other, thereby achieving the clamping and fixing of the rotating shaft 4 to prevent the rotating shaft 4 from rotating and affecting the installation effect of the electromagnetic brake.

[0036] Continue to refer Figures 1 to 8As shown, the clamping mechanism 5 also includes an oiling member 55, which includes a lifting portion 551, an elastic portion 552, a pressure portion 553 and an oiling portion 554. The lifting portion 551 is inserted into the support seat 521, the elastic portion 552 is connected between the lifting portion 551 and the support seat 521, the elastic portion 552 is a spring, and is used to drive the lifting portion 551 to reset. The pressure portion 553 is connected to the lifting portion 551, and one end of the pressure portion 553 extends into the mounting groove of the support seat 521. The oiling portion 554 is connected to the lifting portion 551, and the oiling portion 554 is a sponge block adsorbed with lubricating oil.

[0037] Before the electromagnetic brake is placed in the mounting groove of the support seat 521, the oiling portion 554 contacts the end of the rotating shaft 4 facing the support seat 521, so that the lubricating oil can be coated on the end of the rotating shaft 4 facing the support seat 521. When the electromagnetic brake is placed in the mounting groove of the support seat 521, the gravity of the electromagnetic brake presses down the pressed portion 553, so that the pressed portion 553 drives the lifting portion 551 to move downward, and compresses the elastic portion 552, so that the lifting portion 551 drives the oiling portion 554 to separate from the rotating shaft 4. The lubricating oil is coated on the end of the rotating shaft 4 facing the support seat 521 through the oiling portion 554, which can reduce the friction when the brake disc of the electromagnetic brake is aligned with the rotating shaft 4.

[0038] Working principle:

[0039] After the electromagnetic brake is inserted into the installation groove of the support seat 521, the telescopic part 1 522 is started to drive the two connecting arms 523 to move closer to each other, so that the two clamping parts 1 524 move closer to each other and clamp and fix the electromagnetic brake.

[0040] Before the electromagnetic brake is placed in the mounting groove of the support seat 521, the oiling portion 554 is in contact with the end of the rotating shaft 4 facing the support seat 521, so that the lubricating oil can be coated on the end of the rotating shaft 4 facing the support seat 521. When the electromagnetic brake is placed in the mounting groove of the support seat 521, the gravity of the electromagnetic brake presses down the pressed portion 553, so that the pressed portion 553 drives the lifting portion 551 to move downward, and compresses the elastic portion three 552, so that the lifting portion 551 drives the oiling portion 554 to separate from the rotating shaft 4.

[0041] The fourth telescopic part 541 is activated to drive the two second clamping parts 542 to approach each other, thereby clamping and fixing the rotating shaft 4.

[0042] Start the telescopic part 2 532 to push the moving part 531 to move toward the rotating shaft 4, and the elastic part 1 533 pushes the support seat 521 to move toward the rotating shaft 4. When the circular hole with the groove on the brake disc is not aligned with the rotating shaft 4, the brake disc contacts the rotating shaft 4, and the electromagnetic brake is blocked to stop the movement of the support seat 521. At this time, the moving part 531 continues to move toward the rotating shaft 4 and compresses the elastic part 1 533, so that the rotating part 534 and the driving part 536 extend into the circular hole with the groove on the brake disc through the inclined surface 5361 of the driving part 536, and compress the elastic part 2 537.

[0043] Start the driving source 535 to rotate the rotating part 534 with the driving part 536. When the driving part 536 moves to the groove of the circular hole on the brake disc, the driving part 536 is pushed into the groove of the circular hole on the brake disc through the elastic part 2 537. At this time, when the rotating part 534 rotates, the brake disc can be driven to rotate through the driving part 536. After the circular hole with the groove on the brake disc is aligned with the rotating shaft 4, the support seat 521 is pushed toward the rotating shaft 4 under the action of the elastic part 1 533, so that the brake disc is mounted on the rotating shaft 4, and the support seat 521 is in contact with the blocking part 539. At this time, the rotating part 534 and the driving part 536 are also separated from the brake disc.

[0044] The telescopic portion three 538 is activated to squeeze the mounting seat 51 through the telescopic portion three 538 , and under the action of the blocking portion 539 , the mounting seat 51 is fixedly clamped.

[0045] The telescopic portion 4 541 is activated to drive the two clamping portions 2 542 to move away from each other, thereby releasing the clamping fixation of the rotating shaft 4 .

[0046] The driving member 2 is started to drive the rotating shaft 4, so that the rotating shaft 4 drives the brake disc of the electromagnetic brake to rotate, and the torque of the electromagnetic brake is detected by the detection mechanism 3.

[0047] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A clamping mechanism for testing brakes on a test bench, comprising: A driving member, a detection mechanism and a rotating shaft, wherein the driving member is connected to the rotating shaft, and the rotating shaft is connected to the detection mechanism, the rotating shaft comprises a shaft body and a protrusion, the protrusion and the shaft body are an integrally formed mechanism, and is characterized in that it also comprises: A mounting seat, a clamping member 1, an adjusting member and a clamping member 2, wherein the mounting seat is connected to a workbench, the clamping member 1, the adjusting member and the clamping member 2 are all mounted on the mounting seat, the clamping member 1 is used to clamp and fix the electromagnetic brake, the adjusting member is used to align the brake disc of the electromagnetic brake with the rotating shaft, and the clamping member 2 is used to clamp and fix the rotating shaft to prevent the rotating shaft from rotating when it is aligned with the brake disc of the electromagnetic brake; The clamping member 1 includes a support seat, a telescopic part 1, a connecting arm and a clamping part 1, the support seat is slidably connected to the mounting seat, a mounting groove is provided on the inner side of the support seat, the mounting groove is adapted to the housing of the electromagnetic brake, the telescopic part is connected to the support seat, the telescopic part 1 is a double-headed cylinder, the connecting arm and the clamping part 1 are both provided in two numbers, the two connecting arms are respectively connected to the two ends of the double-headed cylinder, and the two clamping parts 1 are respectively connected to the two connecting arms; The adjusting member comprises a moving part, a telescopic part 2, an elastic part 1, a rotating part, a driving source, a driving part, an elastic part 2 and a blocking part. The moving part is slidably connected to the mounting seat, the telescopic part 2 is connected to the mounting seat, the telescopic part 2 is a single-head cylinder, the telescopic end of the telescopic part 2 is connected to the moving part, the elastic part 1 is connected between the moving part and the supporting part, the elastic part 1 is an elastic sheet, the rotating part is rotatably connected to the moving part, the driving source is connected to the moving part, the output shaft of the driving source is connected to the rotating part, the driving part is plugged into the rotating part, the elastic part 2 is connected between the driving part and the rotating part, the elastic part 2 is a spring, an inclined surface is arranged on the side of the driving part close to the electromagnetic brake, and the blocking part is connected to the mounting seat; The adjusting member comprises a telescopic part three, the telescopic part three is connected to the moving part, the telescopic part three is a single-head cylinder with the telescopic end facing the support seat, and the blocking part and the telescopic part three are respectively located on both sides of the support seat.

2. The clamping mechanism for testing brakes on a test bench according to claim 1, characterized in that: The support seat is located between the blocking portion and the telescopic portion three, and the support seat can be clamped and fixed by the blocking portion and the telescopic portion three.

3. The clamping mechanism for testing brakes on a test bench according to claim 1, characterized in that: The mounting seat is connected with a telescopic portion four, and the clamping portion two is connected to the telescopic portion four.

4. The clamping mechanism for testing brakes on a test bench according to claim 1, characterized in that: It also includes an oil coating member for coating the end of the rotating shaft with lubricating oil.

5. The clamping mechanism for testing brakes on a test bench according to claim 4, characterized in that: The oil-coating part includes a lifting part, an elastic part three, a pressure-bearing part and an oil-coating part. The lifting part is inserted into the support seat, the elastic part three is connected between the lifting part and the support seat, the pressure-bearing part is connected to the lifting part, and the oil-coating part is connected to the lifting part.

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