Electrically-driven loading test bench of bearing platform

Abstract

The utility model belongs to the technical field of load test, and discloses an electric drive loading test bench of a bearing platform, which comprises a platform, the platform is provided with a mounting groove, the platform is provided with an idle wheel box body and two supports through the mounting groove, and the two supports are respectively provided with a driving motor and a loading motor; torque sensors are installed at the output ends of the driving motor and the loading motor, the torque sensors are installed on the support, transmission shafts are installed at the output ends of the torque sensors, and a test piece is installed between the transmission shafts matched with the driving motor and the idle wheel box body. An accompanying test piece is arranged between the transmission shaft matched with the loading motor and the idle wheel box body; the platform is provided with a reinforcing mechanism, the reinforcing mechanism comprises a U-shaped fixing block and an E-shaped fixing block which are fixedly installed on the platform, and the U-shaped fixing block and the E-shaped fixing block are both in threaded connection with ejector rods.

Description

Technical Field

[0001] The utility model belongs to the technical field of load testing, and in particular relates to an electric drive loading test bench for a load-bearing platform. Background Art

[0002] A lifting gearbox for an offshore load-bearing platform, which mainly includes a driving member, a gear train, a first planetary gear train, a second planetary gear train, an output assembly, a mounting frame and a torque arm, etc., wherein the driving member is in transmission connection with the gear train, the output shaft of the gear train transmits the torsional force to the first planetary gear train, the first planetary gear train transmits the torsional force to the second planetary gear train, and the second planetary gear train transmits the torsional force to the output assembly, wherein the torque arm is arranged between the second planetary gear train and the output assembly, and is used to connect the inner gear ring of the second planetary gear train and the output assembly, the mounting frame is used to support the lifting gearbox for the offshore platform, and the mounting frame is connected to the end of the output assembly and the torque arm through a connecting member;

[0003] The above lifting gearbox has high requirements for use. During production, it needs to be subjected to load test to ensure its use effect. The existing similar load test bench adopts variable frequency motor drive and hydraulic dynamometer loading, and the power cannot be recovered, which is very environmentally unfriendly. The load control accuracy is poor. Utility Model Content

[0004] In view of the problems raised by the above background technology, the purpose of the utility model is to provide an electric drive loading test bench for a load-bearing platform.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] An electric drive loading test bench for a load-bearing platform comprises a platform, the platform is provided with a mounting slot, an idler box and two supports are mounted on the platform through the mounting slot, and a driving motor and a loading motor are mounted on the two supports respectively;

[0007] The output ends of the driving motor and the loading motor are both equipped with torque sensors, the torque sensors are installed on the support, the output ends of the torque sensors are equipped with a transmission shaft, a test piece is installed between the transmission shaft matched with the driving motor and the idler gear housing, and a companion test piece is installed between the transmission shaft matched with the loading motor and the idler gear housing;

[0008] The platform is installed with a reinforcement mechanism, which includes a U-shaped fixing block and a mountain-shaped fixing block fixedly installed on the platform, the U-shaped fixing block is located on the peripheral side of the idler wheel box, and the mountain-shaped fixing block is located on the peripheral sides of the two supports, and the U-shaped fixing block and the mountain-shaped fixing block are both threadedly connected with a push rod.

[0009] It is further defined that the cross-section of the mounting groove is T-shaped, a T-block is slidably installed in the mounting groove, and the idler wheel housing and the support are fixedly installed on the T-block. Such a design can adapt to the installation of idler wheel housings and supports of different specifications by sliding the T-block in the mounting groove.

[0010] It is further defined that one end of the push rod is connected to a top plate, and the other end of the push rod is connected to a screw cap. With this design, the top plate can increase the contact area, and the screw cap facilitates the rotation of the push rod.

[0011] It is further defined that the transmission shaft is a ball cage transmission shaft. With such a design, changes in angle will not affect the rotation.

[0012] It is further defined that the test piece and the accompanying test piece are connected to the transmission shaft by flanges, and such a design ensures the strength of the connection.

[0013] The beneficial effects of adopting the utility model are:

[0014] The utility model adopts closed motor drive loading, and carries out structural optimization design and servo motor speed control loading control for large load torque and large reduction ratio. The speed control accuracy is better than 0.5%, and the torque control accuracy is better than 1%. The power recovery accounts for 50-80% of the driving power.

[0015] The utility model solves the problem that the vibration caused by the operation of the equipment during the test affects the test data under the effect of the reinforcement mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 The structure of an electric drive loading test bench embodiment of a load-bearing platform of the utility model is schematically shown. Figure 1 ;

[0018] Figure 2 The structure of an electric drive loading test bench embodiment of a load-bearing platform of the utility model is schematically shown. Figure 2 ;

[0019] Figure 3 It is a cross-sectional structural schematic diagram of an embodiment of an electric drive loading test bench of a load-bearing platform of the utility model;

[0020] The main component symbols are described as follows:

[0021] Platform 1; mounting groove 2; idler box 3; support 4; drive motor 5; loading motor 6; torque sensor 7; transmission shaft 8; test piece 9; accompanying test piece 10; reinforcement mechanism 11;

[0022] U-shaped fixing block 111; mountain-shaped fixing block 112; top rod 113; top plate 114; screw cap 115. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the utility model is an electric drive loading test bench for a load-bearing platform, comprising a platform 1, the platform 1 is provided with a mounting slot 2, an idler box 3 and two supports 4 are mounted on the platform 1 through the mounting slot 2, and the two supports 4 are respectively mounted with a driving motor 5 and a loading motor 6;

[0025] The output ends of the driving motor 5 and the loading motor 6 are both equipped with a torque sensor 7, which is installed on the support 4. A transmission shaft 8 is installed on the output end of the torque sensor 7. A test piece 9 is installed between the transmission shaft 8 matched with the driving motor 5 and the idler gear box 3, and a companion test piece 10 is installed between the transmission shaft 8 matched with the loading motor 6 and the idler gear box 3.

[0026] The platform 1 is installed with a reinforcement mechanism 11, which includes a U-shaped fixing block 111 and a mountain-shaped fixing block 112 fixedly installed on the platform 1. The U-shaped fixing block 111 is located on the 3rd side of the idler gear box, and the mountain-shaped fixing block 112 is located on the 4th side of the two supports. The U-shaped fixing block 111 and the mountain-shaped fixing block 112 are both threadedly connected with a push rod 113.

[0027] In this embodiment, when using an electric drive loading test bench of a load-bearing platform, the test piece 9 is installed between the idler box 3 and the drive motor 5, and the accompanying test piece 10 is installed between the idler box 3 and the loading motor 6, and then the push rod 113 is rotated, and the push rod 113 cooperates with the U-shaped fixing block 111 to fix the position of the three sides of the idler box 3, and the push rod 113 cooperates with the mountain-shaped fixing block 112 to fix the left and right positions of the two supports 4, ensuring that the problem of affecting the final test data due to the jitter of the operation will not occur during the operation of the drive motor 5 and the loading motor 6;

[0028] Start the driving motor 5 and the loading motor 6, cooperate with the idler gear box 3, when the transmission shaft 8 drives the test piece 9 and the accompanying test piece 10 to rotate, the corresponding experimental data can be obtained from the value output by the torque sensor 7, which is simple, convenient and easy to use.

[0029] Preferably, the cross-section of the mounting groove 2 is T-shaped, a T-block is slidably installed in the mounting groove 2, and the idler box 3 and the support 4 are fixedly installed on the T-block. Such a design can adapt to the installation of idler boxes 3 and supports 4 of different specifications by sliding the T-block in the mounting groove 2. In fact, the structural shape of the mounting groove 2 and the fixing measures can also be considered according to specific circumstances.

[0030] Preferably, one end of the top rod 113 is connected to the top plate 114, and the other end of the top rod 113 is connected to the screw cap 115. With this design, the top plate 114 can increase the contact area, and the screw cap 115 facilitates the rotation of the top rod 113. In fact, the structure of the top rod 113 can also be considered according to specific circumstances.

[0031] The transmission shaft 8 is preferably a ball cage transmission shaft. With this design, changes in angle do not affect the rotation. In fact, the selection of the transmission shaft 8 can also be considered based on specific circumstances.

[0032] Preferably, the test piece 9 and the accompanying test piece 10 are connected to the transmission shaft 8 by flanges. Such a design ensures the strength of the connection. In fact, the connection structure between the test piece 9 and the accompanying test piece 10 and the transmission shaft 8 can also be considered according to specific circumstances.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An electric drive loading test bench for a load-bearing platform, comprising a platform (1), characterized in that: The platform (1) is provided with a mounting groove (2), and an idler wheel housing (3) and two supports (4) are mounted on the platform (1) through the mounting groove (2), and the two supports (4) are respectively mounted with a driving motor (5) and a loading motor (6); The output ends of the driving motor (5) and the loading motor (6) are both equipped with torque sensors (7), the torque sensors (7) are installed on the support (4), the output ends of the torque sensors (7) are equipped with a transmission shaft (8), a test piece (9) is installed between the transmission shaft (8) matched with the driving motor (5) and the idler gear housing (3), and an accompanying test piece (10) is installed between the transmission shaft (8) matched with the loading motor (6) and the idler gear housing (3); The platform (1) is installed with a reinforcement mechanism (11), the reinforcement mechanism (11) comprising a U-shaped fixing block (111) and a mountain-shaped fixing block (112) fixedly installed on the platform (1), the U-shaped fixing block (111) being located on the peripheral side of the idler gear housing (3), the mountain-shaped fixing block (112) being located on the peripheral sides of the two supports (4), and the U-shaped fixing block (111) and the mountain-shaped fixing block (112) being both threadedly connected with a push rod (113).

2. The electric drive loading test bench for a load-bearing platform according to claim 1, characterized in that: The installation groove (2) has a T-shaped cross section, a T-shaped block is slidably mounted in the installation groove (2), and the idler wheel housing (3) and the support (4) are fixedly mounted on the T-shaped block.

3. The electric drive loading test bench for a load-bearing platform according to claim 2, characterized in that: One end of the push rod (113) is connected to a top plate (114), and the other end of the push rod (113) is connected to a screw cap (115).

4. The electric drive loading test bench for a load-bearing platform according to claim 3, characterized in that: The transmission shaft (8) is a ball cage transmission shaft.

5. The electric drive loading test bench for a load-bearing platform according to claim 4, characterized in that: The test piece (9) and the accompanying test piece (10) are connected to the transmission shaft (8) by means of flanges.

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