A bias loading fatigue test bench for a coupling diaphragm and a method of using the same

Abstract

A kind of bias loading fatigue test bench for coupling diaphragm and its use method, it is related to a kind of loading fatigue test of coupling diaphragm, including bearing block A being arranged in the upper part of platform, torque loading mechanism and bearing block B, bearing block A and bearing block B are fixed on the upper surface of platform and are spaced, biasing pad iron is fixed between bearing block B and the support of the upper surface of platform, torque sensor on the right end of bearing block A is fixed with fixed disc A, torque loading mechanism is fixed on the left end of bearing block B, measured coupling is fixed between fixed disc A and torque loading mechanism, the inside center of measured coupling is equipped with universal joint telescopic coupling respectively fixed with bearing block A and bearing block B;The application has compact structure, small space occupation, total power is small, and does not need to use hydraulic and cooling system, rotary bearing uses maintenance-free structure, greatly reduces equipment production and use cost.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of loading fatigue test of coupling diaphragm, more particularly to a kind of bias loading fatigue test bench for coupling diaphragm and its use method. BACKGROUND

[0002] It is known that the bias loading fatigue test bench for coupling diaphragm usually uses torque loader to generate torque, since the torque loop is external loop, using torque loader to load torque, torque loader is high in cost, high in energy consumption during test bench operation, large in heat generation, needs complex hydraulic system to control torque, and large cooling system to cool the entire equipment to maintain normal operation;In the prior art, the application number is 201910795432.9, the application date is August 27, 2019, and the invention name is a three-pronged universal coupling test bench with pre-torque, which uses mechanical method to load torque, and uses gear meshing transmission method in loading device, which is easy to cause torque loss, large in rotational inertia, and large in overall system. SUMMARY

[0003] In order to overcome the deficiencies in the background art, the present application discloses a kind of bias loading fatigue test bench for coupling diaphragm and its use method.

[0004] In order to achieve the object of the application, the present application adopts the following technical solutions:

[0005] A kind of bias loading fatigue test bench for coupling diaphragm, including the bearing seat A of being set in the upper part of platform, torque loading mechanism and bearing seat B, bearing seat A and bearing seat B are fixed on the upper surface of platform two sides, biasing pad iron is fixed between bearing seat B and the support on the upper surface of platform, torque sensor on the right end of bearing seat A is fixed with fixed disc A, torque loading mechanism is fixed on the left end of bearing seat B, measured coupling is fixed between fixed disc A and torque loading mechanism, universal joint telescopic coupling is arranged in the center of measured coupling and fixed with bearing seat A and bearing seat B respectively, torque loading mechanism includes fixed disc B, movable disc and adjusting bolt, movable disc is fixed on transmission shaft B of bearing seat B, a plurality of groups of torque adjusting components are uniformly distributed along the circumferential surface between fixed disc B and movable disc, any component includes fixed plate A fixed on the right end surface of fixed disc B, fixed plate B fixed on the left end surface of movable disc, fixed plate A and fixed plate B are arranged in left and right cross-over superposition, and fixed plate A, movable disc are fixed by adjusting bolt, middle part between fixed disc B and movable disc is provided with slewing bearing.

[0006] The bias loading fatigue test bench for the coupling diaphragm further comprises a motor arranged on the upper part of the platform and located at the left side of the bearing seat A, a belt pulley A is fixed on the output shaft of the motor, a transmission shaft A is arranged in the central hole of the bearing seat A, the left end of the transmission shaft A is arranged outside the bearing seat A, a belt pulley B is fixed on the outside of the left end of the transmission shaft A, a belt is connected between the belt pulley A and the belt pulley B, and a torque sensor is fixedly connected to the right end of the transmission shaft A.

[0007] The bias loading fatigue test bench for the coupling diaphragm, the connecting head at the left end of the universal joint telescopic coupling is fixed at the center of the right end surface of the torque sensor, and the connecting head at the right end of the universal joint telescopic coupling is fixed at the center of the left end surface of the movable disc after passing through the central hole of the fixed disc B.

[0008] The bias loading fatigue test bench for the coupling diaphragm, the coupling diaphragm is arranged outside the flange disc at the two ends of the measured coupling, and the bolts in the plurality of bolt holes arranged in the circumferential direction on the flange disc are fixed on the fixed disc A and the fixed disc B respectively after passing through the coupling diaphragm.

[0009] A use method of a bias loading fatigue test bench for a coupling diaphragm, specifically comprising the following steps:

[0010] S1, connecting the output end of the motor 1 and the transmission shaft A at the center of the bearing seat A through a belt;

[0011] S2, fixing the torque sensor on the transmission shaft A in the bearing seat A at the right end, fixing the fixed disc A on the torque sensor, fixing the torque loading mechanism on the transmission shaft B in the bearing seat B, fixing the connecting head at the left end of the universal joint telescopic coupling at the center of the right end surface of the torque sensor after the connecting head at the right end of the universal joint telescopic coupling passing through the central hole of the torque loading mechanism fixed disc B, and fixing the connecting head at the right end at the center of the left end surface of the movable disc;

[0012] S3, placing the coupling diaphragm outside the flange disc at the two ends of the measured coupling, and fixing the coupling diaphragm on the fixed disc A and the fixed disc B respectively through a plurality of bolts, that is, completing the installation of the test piece;

[0013] S4, twisting a plurality of adjusting bolts to cause the relative displacement of the movable disc and the fixed disc B without causing the radial displacement, so as to generate a torque, judging the size of the torque through the torque sensor, locking the adjusting bolts with nuts when the torque reaches a set value to ensure that the torque does not change, and forming a torque closed loop;

[0014] S5, arranging a biasing pad iron at the lower part of the bearing seat B to raise the bearing seat B, forming a central height difference between the bearing seat B and the bearing seat A, and thus forming the radial bias of the universal joint telescopic coupling;

[0015] S6, the motor is started, the rotating speed of the motor is controlled through the external PLC control system to meet the test requirements, and the bias fatigue test of the measured coupling is completed when the rotating number of the motor reaches the requirement.

[0016] Due to the adoption of the above technical solutions, the present application has the following beneficial effects:

[0017] 1. The bias loading fatigue test bench for the coupling diaphragm and the use method thereof have the advantages that the torque closed loop is arranged in the inner cavity of the measured coupling, the structure is compact, the occupied space is small, the total power is small, the hydraulic and cooling systems do not need to be used, the maintenance-free structure is adopted for the rotating bearing, and the production and use costs of the equipment are greatly reduced.

[0018] 2. The bias loading fatigue test bench for the coupling diaphragm and the use method thereof do not adopt the mechanical structure of gear transmission, and the occurrence of the torque loss and the test error is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a structural schematic diagram of the present application.

[0020] Fig. 2 is an installation schematic diagram of the fixed plate A and the fixed plate B.

[0021] In the figure: 1, motor; 2, bearing seat A; 3, connecting head; 4, fixed disc A; 5, coupling diaphragm; 6, measured coupling; 7, adjusting bolt; 8, rotating bearing; 9, bearing seat B; 10, installation platform; 11, universal joint telescopic coupling; 12, fixed disc B; 13, moving disc; 14, bias pad iron; 15, torque sensor; 16, fixed plate A; 17, fixed plate B. DETAILED DESCRIPTION

[0022] The present application can be explained in detail through the following examples, and the purpose of the present application is to protect all technical improvements within the scope of the present application.

[0023] The present application is combined with the drawings Figs. 1-2The bias loading fatigue test bench for the coupling diaphragm comprises a bearing seat A2 fixed on the upper part of a platform 10, a torque loading mechanism and a bearing seat B9, the bearing seat A2 and the bearing seat B9 are fixed on the upper two sides of the platform 10, the bias pad iron 14 is fixed between the bearing seat B9 and the support on the upper part of the platform 10, the torque sensor 15 on the right end of the bearing seat A2 is fixed with a fixed disc A4, the left end of the bearing seat B9 is fixed with the torque loading mechanism, the measured coupling 6 is fixed between the fixed disc A4 and the torque loading mechanism, the universal joint telescopic coupling 11 fixed with the bearing seat A2 and the bearing seat B9 is arranged at the center of the measured coupling 6, the torque loading mechanism comprises a fixed disc B12, a movable disc 13 and an adjusting bolt 7, the movable disc 13 is fixed on the transmission shaft B of the bearing seat B9, a plurality of torque adjusting assemblies are uniformly distributed on the circumferential surface between the fixed disc B12 and the movable disc 13, any assembly comprises a fixed plate A16 fixed on the right end surface of the fixed disc B12 and a fixed plate B17 fixed on the left end surface of the movable disc 13, the fixed plate A16 and the fixed plate B17 are arranged in left-right interlaced superposition, and the fixed plate A16, the movable disc 13 and the fixed disc B12 are fixed through the adjusting bolt 7, and the middle part between the fixed disc B12 and the movable disc 13 is provided with a rotary bearing 8; the connecting head 3 at the left end of the universal joint telescopic coupling 11 is fixed at the center of the right end surface of the torque sensor 15, and the connecting head 3 at the right end of the universal joint telescopic coupling 11 is fixed at the center of the left end surface of the movable disc 13 after penetrating through the center hole of the fixed disc B12; the flange disc at the two ends of the measured coupling 6 is provided with a coupling diaphragm 5 outside, and the bolts in the plurality of bolt holes arranged in the circumferential direction on the flange disc are fixed on the fixed disc A4 and the fixed disc B12 through the coupling diaphragm 5.

[0024] Further, the motor 1 is arranged on the upper part of the platform 10 and located on the left side of the bearing seat A2, the pulley A is fixed on the output shaft of the motor 1, the transmission shaft A is arranged in the center hole of the bearing seat A2, the left end of the transmission shaft A is arranged outside the bearing seat A2, and the pulley B is fixed on the outside of the transmission shaft A, the belt is connected between the pulley A and the pulley B, and the torque sensor 15 is fixed on the right end of the transmission shaft A.

[0025] A use method of a bias loading fatigue test bench for a coupling diaphragm, specifically comprising the following steps:

[0026] S1, the output end of the motor 1 is connected with the transmission shaft A at the center of the bearing seat A2 through the belt;

[0027] S2, the right end of the transmission shaft A in the bearing seat A2 is fixed with a torque sensor 15, a fixed disc A4 is fixed on the torque sensor 15, a torque loading mechanism is fixed on the transmission shaft B in the bearing seat B9, the universal joint telescopic coupling 11 passes through the center of the measured coupling 6, and the connecting head 3 at the left end of the universal joint telescopic coupling 11 is fixed at the center of the right end surface of the torque sensor 15, and the connecting head 3 at the right end passes through the center hole of the torque loading mechanism fixed disc B12 and is fixed at the center of the left end surface of the movable disc 13;

[0028] S3, the outer surfaces of the flanges at both ends of the measured coupling 6 are placed with coupling diaphragms 5, and the coupling diaphragms 5 are fixed on the fixed disc A4 and the fixed disc B12 respectively through a plurality of bolts, that is, the installation of the test piece is completed;

[0029] S4, the torque adjusting assembly arranged between the movable disc 13 and the fixed disc B12 is uniformly provided with four groups, four adjusting bolts 7 on the torque adjusting assembly are twisted, so that the movable disc 13 and the fixed disc B12 of the torque loading mechanism produce relative displacement but do not produce radial displacement, thereby generating torque, and the size of the torque is judged through the torque sensor 15, when the torque reaches the set value, the adjusting bolt 7 is locked with a nut, so that the torque no longer changes, and a torque closed loop is formed;

[0030] S5, the biasing pad iron 14 is arranged at the lower part of the bearing seat B9, the bearing seat B9 is raised through the biasing pad iron 14, the center height difference is formed between the bearing seat B9 and the bearing seat A2, and the radial biasing of the universal joint telescopic coupling 11 is formed;

[0031] S6, the motor 1 is started, the speed of the motor 1 is controlled to meet the test requirements through an external PLC control system, the motor 1 drives the transmission shaft A to rotate, thereby driving the torque sensor 15, the fixed disc A4, the measured coupling 6, the universal joint telescopic coupling 11 and the torque loading mechanism to rotate, and when the rotation number of the motor reaches the requirement, the torque biasing fatigue test of the measured coupling 6 is completed.

[0032] The part not described in detail in the application is the prior art.

[0033] In order to disclose the inventive purpose of the application, the examples selected in the text are currently considered to be appropriate, but it should be understood that the application is intended to include all changes and improvements of the examples within the scope of the concept and the application.

Claims

1. A bias loading fatigue test bench for a coupling diaphragm, comprising a bearing block A fixedly arranged on the upper part of a platform, a torque loading mechanism and a bearing block B, characterized in that: The bearing seat A and the bearing seat B are fixed on the upper two sides of the platform, the bearing seat B is fixed with a biasing pad between the upper support of the platform, the torque sensor on the right end of the bearing seat A is fixed with a fixed disc A, the left end of the bearing seat B is fixed with a torque loading mechanism, the fixed disc A and the torque loading mechanism are fixed between the fixed disc A and the torque loading mechanism, the inside of the measured coupling is provided with a universal joint telescopic coupling fixed with the bearing seat A and the bearing seat B respectively, the torque loading mechanism comprises a fixed disc B, a movable disc and an adjusting bolt, the movable disc is fixed on the transmission shaft B of the bearing seat B, a plurality of groups of torque adjusting components are uniformly distributed on the circumferential surface between the fixed disc B and the movable disc, any group of components comprises a fixed plate A fixed on the right end surface of the fixed disc B and a fixed plate B fixed on the left end surface of the movable disc, the fixed plate A and the fixed plate B are arranged in left-right interlaced superposition, and the fixed plate A, the movable disc and the fixed disc B are fixed through the adjusting bolt, and the middle part between the fixed disc B and the movable disc is provided with a rotary bearing.

2. A bias loaded fatigue test bench for a membrane of a shaft coupling according to claim 1, characterized in that: The motor is arranged on the upper part of the platform and located on the left side of the bearing seat A, a belt pulley A is fixed on the output shaft of the motor, a transmission shaft A is arranged in the central hole of the bearing seat A, the left end of the transmission shaft A is arranged outside the bearing seat A, a belt pulley B is fixed on the outside of the transmission shaft A, a belt is connected between the belt pulley A and the belt pulley B, and the right end of the transmission shaft A is fixedly connected with the torque sensor.

3. The bias loaded fatigue test bench for a coupling diaphragm of claim 1, characterized in that: The connecting head at the left end of the universal joint telescopic coupling is fixed at the center of the right end surface of the torque sensor, and the connecting head at the right end of the universal joint telescopic coupling is fixed at the center of the left end surface of the movable disc after penetrating through the central hole of the fixed disc B.

4. The bias loaded fatigue test bench for a coupling diaphragm of claim 1, characterized by: The flange plates at the two ends of the measured coupling are each provided with a coupling diaphragm outside, and the bolts in the plurality of bolt holes arranged in the circumferential direction of the flange plates are each fixed on the fixed disc A and the fixed disc B after penetrating through the coupling diaphragm.

5. A use method of the biasing loading fatigue test bench for the coupling diaphragm, specifically comprising the following steps: S1, connecting the output end of the motor 1 with the transmission shaft A at the center of the bearing seat A through a belt; S2, fixing the torque sensor on the transmission shaft A in the bearing seat A at the right end, fixing the fixed disc A on the torque sensor, fixing the torque loading mechanism on the transmission shaft B in the bearing seat B, fixing the connecting head at the left end of the universal joint telescopic coupling with the center of the right end surface of the torque sensor after penetrating through the center of the measured coupling, and fixing the connecting head at the right end with the center of the left end surface of the movable disc after penetrating through the central hole of the torque loading mechanism fixed disc B; S3, placing the coupling diaphragm outside the flange plates at the two ends of the measured coupling, and fixing the coupling diaphragm on the fixed disc A and the fixed disc B through a plurality of bolts, that is, completing the installation of the test piece; S4, twisting a plurality of adjusting bolts to cause the relative displacement of the movable disc and the fixed disc B without causing the radial displacement, thereby generating a torque, judging the size of the torque through the torque sensor, locking the adjusting bolt with a nut after the torque reaches a set value to ensure that the torque does not change, and forming a torque closed loop; S5, arranging a biasing pad on the lower part of the bearing seat B to raise the bearing seat B and form a central height difference between the bearing seat B and the bearing seat A, thereby forming the radial biasing of the universal joint telescopic coupling. S6, start the motor, through the external PLC control system to control the speed of the motor to meet the test requirements, when the motor rotation rotation number reaches the requirements, the torque bias fatigue test of the measured coupling is completed.

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