A harvester drive axle assembly operation detection device

Abstract

The present invention provides an operation detection device for a harvester drive axle assembly, which relates to the technical field of drive axle detection devices and comprises a test bench, wherein slide rails are fixed on both sides of the test bench, and a movable frame is slidably installed on the slide rails, a clamping component is provided at the bottom of the movable frame, and the clamping component comprises a movable groove, a movable groove is opened at the bottom of the movable frame, and two movable plates are symmetrically slidably connected in the movable groove, a suspension rope slides through both sides of the movable plate, and a support belt is connected to the bottom of the suspension rope. Compared with the prior art, the drive axle body is clamped and fixed on the test bench by the clamping component and the connecting component on the movable frame, and the clamping position can be adjusted according to the size of the drive axle body in the process, and the drive axle can be aligned with the connecting end of the detection equipment while facilitating the transportation of the drive axle, thereby saving the time spent on multiple steps and making the test of the drive axle more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of drive axle detection devices, and in particular to an operation detection device for a harvester drive axle assembly. Background Art

[0002] The drive axle assembly of a harvester is mainly composed of the main transmission, differential, half shaft, universal joint, etc. In the specific field of agricultural machinery, such as harvesters, the drive axle assembly also includes travel gearbox, left and right half shafts, left and right brakes, brake discs, gear rings and drive tires. The operation test of the harvester drive axle can be carried out by using a special drive axle test device. This test device includes a test platform that can simulate various conditions under actual vehicle working conditions to evaluate the performance and reliability of the drive axle. The test content includes but is not limited to torque, speed, noise, braking performance, differential lock function, bearing temperature and fatigue characteristics.

[0003] The static torsion test of the drive axle assembly is an important item in the detection and testing of the drive axle assembly. The purpose of the test is to check the weakest torsion-resistant part in the drive axle assembly, and then calculate the static torsion strength reserve coefficient of the drive axle assembly. The specific test process is as follows: First, fix the axle housing of the installed drive axle assembly (on the bracket; then, connect the input end of the drive axle assembly (i.e. one end of the reducer driving gear) to the output end of the force machine, and fix the output end of the drive axle (the output end of the half-axle or the wheel hub); then, start the torque machine, slowly increase the load, and observe the torque curve until any part is twisted off; finally, check the weakest torsion-resistant part in the drive axle assembly and calculate the static torsion strength reserve coefficient.

[0004] In the above experimental process, firstly, because the drive axle itself is heavy, it is inconvenient to carry it. The drive axle needs to be moved to the test bench and clamped and fixed by a clamp. The drive axles of different models of harvesters have different sizes, so the position of the clamp needs to be adjusted to align and connect with the detection equipment. Therefore, the preparation work before the drive axle test takes a lot of time and is more inconvenient. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a harvester drive axle assembly operation detection device to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The drive axle body is clamped and fixed on the test bench by the clamping assembly and the connecting assembly on the movable frame. During this process, the clamping position can be adjusted according to the size of the drive axle body. While facilitating the transportation of the drive axle, the connecting end of the drive axle can be aligned with the connecting end of the detection equipment, saving the time spent in multiple steps and making the testing of the drive axle more convenient.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a harvester drive axle assembly operation detection device, including a test bench, slide rails are fixed on both sides of the test bench, and a mobile frame is slidably installed on the slide rails, a clamping assembly is provided at the bottom of the mobile frame, and the clamping assembly includes a mobile groove, a mobile groove is opened on the top of the mobile frame, and two mobile plates are symmetrically slidably connected in the mobile groove, a suspension rope slides through both sides of the mobile plate, a support belt is connected to the bottom of the suspension rope, a drive axle body is arranged between the two groups of the support belts, and the top of the test bench is directly opposite to the drive axle A detection device is installed at the position of the driving shaft of the body, and a pressure plate is covered at the position of the drive bridge body facing the top of the support belt. Upper arc plates are provided on the tops of both ends of the drive bridge body, and the upper arc plates are connected to the pressure plates. A lower arc plate is provided on the surface of the test bench located at the bottom of the upper arc plate, and the lower arc plate contacts the bottom of both ends of the drive bridge body. A socket plate is provided on the surface of the test bench located at the bottom of the support belt, and the socket plate can be connected to the pressure plate. A connecting component is provided on the same side of the upper arc plate and the lower arc plate, and the connecting component includes a vertical frame, the bottom of the vertical frame is connected to the lower arc plate, and the upper arc plate slides along the vertical frame.

[0007] Furthermore, a screw rod is rotatably installed inside the slide rail through a bearing, and a motor is fixed to the outer end of the slide rail. The output end of the motor is fixedly connected to the screw rod, and the bottoms of both ends of the movable frame are threadedly sleeved on the surface of the screw rod.

[0008] Furthermore, the test bench is provided with a slide groove on the surface of the lower arc plate and the socket plate, the bottom of the lower arc plate is provided with a second slider, the bottom of the socket plate is provided with a first slider, and the first slider and the second slider both slide along the slide groove, a bidirectional cylinder is fixed on the surface of the test bench, and the two extended ends of the bidirectional cylinder are fixedly connected to the tops of the two groups of first sliders, a spring telescopic rod is fixed to the top of the second slider, and the top of the spring telescopic rod is fixedly connected to the lower arc plate.

[0009] Furthermore, the clamping assembly also includes a sliding frame, a sliding frame is fixed on the top of the movable frame, connecting blocks are fixed on the top of the two groups of suspension ropes of the movable plate, and the connecting blocks slide along the two sides of the sliding frame respectively, a vertical rod is provided on the top of the pressure plate, and the vertical rod slides through the movable plate and is fixed with a sliding sleeve, the inner ring of the sliding frame is provided with a top plate, and the sliding sleeve is slidably connected to the top plate.

[0010] Furthermore, a third electric push rod is fixed at positions on the top of the moving frame corresponding to the two ends of the sliding frame, and the extended ends of the third electric push rod are fixedly connected to the sliding frame, a second electric push rod is fixed at positions on the top of the moving frame corresponding to the two ends of the top plate, and the extended ends of the second electric push rod are fixedly connected to the top plate, a lifting rope on one side of the moving plate is fixed to a support belt, and a hook is fixed to the lifting rope on the other side of the moving plate, and the hook can be buckled to the other end of the support belt.

[0011] Furthermore, plug rods are fixed at the four corners of the bottom of the pressure plate, a slot is opened at the top of the socket board corresponding to the position of the plug rod, and the bottom of the plug rod is slidably inserted into the slot, a first electric push rod is fixed inside the first sliding block, and the extended end of the first electric push rod is fixedly connected to the bottom of the socket board.

[0012] Furthermore, the connecting assembly also includes a connecting column, a connecting column is fixed on the top of the pressure plate, and the top of the connecting column is fixedly connected to the vertical rod, a connecting plate is sleeved on the top of the connecting column, and a movable notch is opened at the position of the connecting plate corresponding to the connecting column, the connecting column slides along the movable notch, and an insert column is slidably inserted at the other end of the connecting plate, and the bottom of the insert column is fixed to the upper arc plate.

[0013] Furthermore, the plug is located on the top of the connecting plate and is sleeved with a return spring, and both ends of the return spring are fixedly connected to the top of the plug and the connecting plate. The connecting plate is threadedly connected to the outer side of the plug corresponding to the plug, and the locking bolt can be squeezed into contact with the plug.

[0014] Furthermore, the interior of the vertical frame is slidably connected to the limiting frame, and the interior of the limiting frame is slidably plugged with an inserting plate, and one end of the inserting plate is fixedly connected to the connecting plate.

[0015] Furthermore, a rear box is fixed on the surface of the test bench located outside the detection equipment, a front box is fixed on the side of the movable frame away from the rear box, and the front box, the movable frame and the rear box can form a box body, and a noise monitor is arranged inside the rear box.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention wraps the interior of the test bench with a box body consisting of a front box, a mobile frame and a rear box, monitors the noise generated by the drive axle body during operation through a noise monitor, and reduces interference from the external environment. The front box and the rear box can be made of transparent materials to facilitate manual observation of the test bench.

[0018] 2. The present invention adjusts the positions of the support belt and the upper arc plate when installing the drive axle body. The position adjustment of the upper arc plate will drive the vertical frame to move through the plug plate and the limit frame. At the same time, the second sliding block at the bottom of the lower arc plate slides along the slide groove to keep the upper arc plate and the lower arc plate vertically corresponding. The positions of the support belt and the upper arc plate can be fine-tuned through the moving notch of the connecting plate, so as to clamp and fix the drive axle body with different arm lengths.

[0019] 3. In the present invention, when the pressure plate squeezes the tops of both sides of the drive axle body, the upper arc plate slides along the connecting plate through the plug column and the elastic force of the return spring to adjust itself, avoiding movement interference between the upper arc plate and the pressure plate. After the upper arc plate is kept in contact with the tops of both ends of the drive axle body, the position of the upper arc plate is locked by the locking bolts.

[0020] 4. According to the size of the drive axle body, the present invention slides the movable plate along the movable groove, the connecting block of the suspension rope slides along the sliding frame, the sliding sleeve of the vertical rod slides along the top plate, and the position of the support belt is adjusted. The socket plate on the test bench synchronously pushes the first slider to slide along the sliding groove through the two-way cylinder to keep the socket plate and the support belt vertically corresponding, and then the support belt passes around the bottom of both sides of the drive axle body and is connected to the suspension rope on the other side through a hook. The second electric push rod and the third electric push rod adjust the descending height of the suspension rope to facilitate the connection with the socket plate and the lower arc plate on the test bench, clamp the drive axle body, and also facilitate the lifting and transportation and lowering and sending out of the drive axle.

[0021] 5. In the present invention, a pressure plate is covered on the top of the support belt and cooperates with the support belt to wrap both sides of the drive axle. The insertion rod at the bottom of the pressure plate is inserted into the socket plate. The pressure plate and the socket plate cooperate to clamp and fix both sides of the drive axle. The socket plate is pushed to move by the first electric push rod inside the first slider, so the height of the drive axle body after installation can be fine-tuned, which is convenient for connection with the output end of the detection equipment.

[0022] 6. Compared with the prior art, the present invention clamps and fixes the drive axle body on the test bench through the clamping assembly and the connecting assembly on the mobile frame. During the process, the clamping position can be adjusted according to the size of the drive axle body. While facilitating the transportation of the drive axle, the connecting end of the drive axle and the detection equipment can be aligned, saving the time spent in multiple steps and making the testing of the drive axle more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a harvester drive axle assembly operation detection device of the present invention;

[0024] Figure 2 It is a schematic diagram of the top structure of a test bench of a harvester drive axle assembly operation detection device of the present invention;

[0025] Figure 3 It is a schematic diagram of the connection between the driving axle and the moving frame of a harvester driving axle assembly operation detection device of the present invention;

[0026] Figure 4 This is a schematic structural diagram of a test bench of a harvester drive axle assembly operation detection device of the present invention being located at the bottom of the drive axle;

[0027] Figure 5 It is a schematic diagram of the structure of a clamping component of a harvester drive axle assembly operation detection device of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the connection components of a harvester drive axle assembly operation detection device of the present invention;

[0029] Figure 7The present invention is a schematic diagram of the installation of a suspension rope and a vertical rod of a harvester drive axle assembly operation detection device.

[0030] In the figure: 1, test bench; 11, rear box; 12, testing equipment; 13, slide; 14, two-way cylinder; 15, first slider; 16, socket board; 17, first electric push rod; 18, second slider; 19, spring telescopic rod; 110, lower arc plate; 2, mobile frame; 21, front box; 3, slide rail; 31, motor; 32, screw rod; 4, drive bridge body; 5, clamping assembly; 51, slide frame; 52, top plate; 53, mobile slot; 54, mobile Moving plate; 55, supporting belt; 56, upper arc plate; 57, second electric push rod; 58, third electric push rod; 59, lifting rope; 510, pressing plate; 511, plug rod; 512, hook; 513, vertical rod; 514, connecting block; 515, sliding sleeve; 6, connecting assembly; 61, vertical frame; 62, plug plate; 63, limit frame; 64, connecting plate; 65, plug column; 66, reset spring; 67, locking bolt; 68, moving notch; 69, connecting column. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] See also Figures 1 to 7The present invention provides a technical solution: a harvester drive axle assembly operation detection device, comprising a test bench 1, slide rails 3 are fixed on both sides of the test bench 1, and a mobile frame 2 is slidably installed on the slide rails 3, a clamping assembly 5 is provided at the bottom of the mobile frame 2, the clamping assembly 5 includes a moving groove 53, a moving groove 53 is opened on the top of the mobile frame 2, and two moving plates 54 are symmetrically slidably connected in the moving groove 53, a suspension rope 59 is slidably passed through both sides of the moving plate 54, a support belt 55 is connected to the bottom of the suspension rope 59, a drive axle body 4 is arranged between the two groups of the support belts 55, a detection device 12 is installed at the driving shaft position of the drive axle body 4 on the top of the test bench 1, a position of the drive axle body 4 facing the top of the support belt 55 is covered with a pressing plate 510, upper arc plates 56 are provided on the tops of both ends of the drive axle body 4, and the upper arc plates 56 are connected to the pressing plates 510, and a lower arc plate 1 is provided on the surface of the test bench 1 at the bottom of the upper arc plate 56 10, and the lower arc plate 110 is in contact with the bottom of the two ends of the drive bridge body 4, the test bench 1 is provided with a socket plate 16 on the surface of the bottom of the support belt 55, and the socket plate 16 can be connected to the pressure plate 510, and the upper arc plate 56 and the lower arc plate 110 are provided with a connecting component 6 on the same side, and the connecting component 6 includes a vertical frame 61, and the bottom of the vertical frame 61 is connected to the lower arc plate 110, and the upper arc plate 56 slides along the vertical frame 61. The technical method of the detection equipment 12 can be selected to be the same as the principle of the torque machine in patent CN209841379U. When using the device, the mobile frame 2 is moved along the slide rail 3 to the outside of the test bench 1, and the drive bridge body 4 is installed through the clamping assembly 5, and then sent back to the test bench 1, and the drive bridge body 4 is clamped and fixed with the lower arc plate 110 and the socket plate 16 on the test bench 1, and the main shaft connecting end of the drive bridge body 4 is connected to the driving shaft of the detection equipment 12. After the torque test, the drive bridge body 4 is sent out in the original direction after the test is completed.

[0033] In this embodiment, a screw rod 32 is rotatably installed inside the slide rail 3 through a bearing, and a motor 31 is fixed to the outer end of the slide rail 3, the output end of the motor 31 is fixedly connected to the screw rod 32, and the bottom threads of both ends of the movable frame 2 are sleeved on the surface of the screw rod 32. When the motor 31 is turned on to drive the screw rod 32 to move, the movable frame 2 and the screw rod 32 threads cooperate to move horizontally, and the lifting rope 59 on the movable frame 2 is used to lift the drive bridge body 4 and transport it to the test bench 1 to connect with the lower arc plate 110 and the socket plate 16. At the same time, it is also convenient to send out the tested drive bridge body 4.

[0034] In this embodiment, the test bench 1 is provided with a slide groove 13 on the surface of the lower arc plate 110 and the socket plate 16, the bottom of the lower arc plate 110 is provided with a second slider 18, the bottom of the socket plate 16 is provided with a first slider 15, and the first slider 15 and the second slider 18 both slide along the slide groove 13, a two-way cylinder 14 is fixed on the surface of the test bench 1, and the two extended ends of the two-way cylinder 14 are fixedly connected to the tops of the two groups of first sliders 15, a spring telescopic rod 19 is fixed to the top of the second slider 18, and the top of the spring telescopic rod 19 is fixedly connected to the lower arc plate 110, the clamping assembly 5 also includes a slide frame 51, the top of the mobile frame 2 is fixed with the slide frame 51, and the tops of the two groups of suspension ropes 59 of the mobile plate 54 are fixed with connecting blocks 51 4, and the connecting blocks 514 slide along the two sides of the sliding frame 51 respectively, a vertical rod 513 is provided on the top of the pressing plate 510, and the vertical rod 513 slides through the moving plate 54 and is fixed with a sliding sleeve 515, the inner ring of the sliding frame 51 is provided with a top plate 52, and the sliding sleeve 515 is slidably sleeved on the top plate 52, a third electric push rod 58 is fixed at the position of the top of the moving frame 2 corresponding to the two ends of the sliding frame 51, and the extended end of the third electric push rod 58 is fixedly connected to the sliding frame 51, a second electric push rod 57 is fixed at the position of the top of the moving frame 2 corresponding to the two ends of the top plate 52, and the extended end of the second electric push rod 57 is fixedly connected to the top plate 52, a hanging rope 59 on one side of the moving plate 54 is fixed to the supporting belt 55, and a hook 5 is fixed to the hanging rope 59 on the other side of the moving plate 54 12, the hook 512 can be buckled on the other end of the support belt 55, the four corners of the bottom of the pressure plate 510 are fixed with a plug rod 511, the top of the socket plate 16 is provided with a slot corresponding to the position of the plug rod 511, and the bottom of the plug rod 511 is slidably inserted in the slot, the first slider 15 is fixed with a first electric push rod 17, and the extended end of the first electric push rod 17 is fixedly connected to the bottom of the socket plate 16, according to the size of the drive bridge body 4, the moving plate 54 is slid along the moving groove 53, the connecting block 514 of the suspension rope 59 slides along the sliding frame 51, and the sliding sleeve 515 of the vertical rod 513 slides along the top plate 52, the position of the support belt 55 is adjusted, and the socket plate 16 on the test bench 1 synchronously pushes the first slider 15 to slide along the slide groove 13 through the two-way cylinder 14 The socket plate 16 is moved to keep the socket plate 16 and the support belt 55 vertically corresponding, and then the support belt 55 is passed around the bottom of both sides of the drive bridge body 4, and connected to the other side of the suspension rope 59 through the hook 512. The second electric push rod 57 and the third electric push rod 58 adjust the descending height of the suspension rope 59, which is convenient for connecting with the socket plate 16 and the lower arc plate 110 on the test bench 1, clamping the drive bridge body 4, and also convenient for lifting and conveying the drive bridge and putting it down. The pressing plate 510 covers the top of the support belt 55 and cooperates with the support belt 55 to wrap both sides of the drive bridge. The insertion rod 511 at the bottom of the pressing plate 510 is inserted into the socket plate 16. The pressing plate 510 and the socket plate 16 cooperate to clamp and fix both sides of the drive bridge, and the socket plate 16 is pushed to move by the first electric push rod 17 inside the first slider 15.The height of the drive axle body 4 after installation can be fine-tuned to facilitate connection with the output end of the detection device 12.

[0035] In this embodiment, the connecting assembly 6 also includes a connecting column 69, a connecting column 69 is fixed on the top of the pressure plate 510, and the top of the connecting column 69 is fixedly connected to the vertical rod 513, a connecting plate 64 is sleeved on the top of the connecting column 69, and a movable notch 68 is opened on the connecting plate 64 corresponding to the position of the connecting column 69, the connecting column 69 slides along the movable notch 68, a plug-in column 65 is slidably inserted at the other end of the connecting plate 64, and the bottom of the plug-in column 65 is fixed to the upper arc plate 56, the plug-in column 65 is located at the top of the connecting plate 64 and sleeved with a return spring 66, and the two ends of the return spring 66 are fixedly connected to the top of the plug-in column 65 and the connecting plate 64, the connecting plate 64 is threadedly inserted with a locking bolt 67 corresponding to the outer side of the plug-in column 65, and the locking bolt 67 can be pressed and contacted with the plug-in column 65, the vertical frame 61 is internally slidably connected to the limited position frame 63, and the limit frame 63 is internally slidably inserted with a plug-in plate 62, one end of the plug-in plate 62 is connected to the connecting plate 64 When the movable frame 2 moves outward, the plug plate 62 slides outward along the limit frame 63. When the drive bridge body 4 is installed, the position of the support belt 55 and the upper arc plate 56 is adjusted. The position adjustment of the upper arc plate 56 will drive the vertical frame 61 to move through the plug plate 62 and the limit frame 63. At the same time, the second slider 18 at the bottom of the lower arc plate 110 slides along the slide groove 13 to keep the upper arc plate 56 and the lower arc plate 110 vertically corresponding. Through the moving notch 68 of the connecting plate 64, the position of the support belt 55 and the upper arc plate 56 can be fine-tuned, so as to clamp and fix the drive bridge body 4 with different arm lengths. When the pressure plate 510 squeezes the top of both sides of the drive bridge body 4, the upper arc plate 56 slides along the connecting plate 64 through the plug column 65 and the elastic force of the return spring 66 to avoid movement interference between the upper arc plate 56 and the pressure plate 510. After keeping the upper arc plate 56 in contact with the top of both ends of the drive bridge body 4, the position of the upper arc plate 56 is locked by the locking bolt 67.

[0036] In this embodiment, a rear box 11 is fixed on the surface of the test bench 1 located on the periphery of the detection equipment 12, a front box 21 is fixed on the side of the mobile frame 2 away from the rear box 11, and the front box 21, the mobile frame 2 and the rear box 11 can form a box body, and a noise monitor is arranged inside the rear box 11. As the mobile frame 2 moves horizontally, the drive axle body 4 enters the test station, and the box body composed of the front box 21, the mobile frame 2 and the rear box 11 wraps the inside of the test bench 1. The noise generated by the drive axle body 4 during operation is monitored by the noise monitor, while reducing interference from the external environment. The front box 21 and the rear box 11 can be made of transparent materials to facilitate human observation of the test bench 1. The rear box 11 and the front box 21 can refer to the structure of an outdoor tent in the prior art, and are supported by a skeleton. A zipper door is arranged on the side of the rear box 11 to facilitate entering the test bench 1 for operation after opening.

[0037] When the device is used, the motor 31 is turned on to drive the screw rod 32 to move, and the movable frame 2 and the screw rod 32 are threadedly matched to move horizontally, and the movable frame 2 is moved along the slide rail 3 to the outside of the test bench 1. According to the size of the drive bridge body 4, the movable plate 54 is slid along the movable groove 53, and the connecting block 514 of the suspension rope 59 slides along the slide frame 51. The sliding sleeve 515 of the vertical rod 513 slides along the top plate 52, and the position of the support belt 55 is adjusted. The socket plate 16 on the test bench 1 synchronously pushes the first slider 15 to slide along the slide groove 13 through the two-way cylinder 14, and the socket plate 16 is kept vertically corresponding to the support belt 55. Then, the support belt 55 is moved. 5 bypasses the bottom of both sides of the drive axle body 4, and is connected to the other side of the suspension rope 59 through the hook 512. The second electric push rod 57 and the third electric push rod 58 adjust the descending height of the suspension rope 59, which is convenient for connecting with the socket plate 16 and the lower arc plate 110 on the test bench 1, clamping the drive axle body 4, and also convenient for lifting and conveying the drive axle and putting it down for delivery. The pressing plate 510 covers the top of the support belt 55 and cooperates with the support belt 55 to wrap both sides of the drive axle. The insertion rod 511 at the bottom of the pressing plate 510 is inserted into the socket plate 16. The pressing plate 510 cooperates with the socket plate 16 to clamp and fix both sides of the drive axle. The socket plate 16 is pushed to move by the first electric push rod 17 inside the first slider 15, so that the height of the drive bridge body 4 after installation can be fine-tuned, and the positions of the support belt 55 and the upper arc plate 56 can be adjusted. The position adjustment of the upper arc plate 56 will drive the vertical frame 61 to move through the plug plate 62 and the limit frame 63. At the same time, the second slider 18 at the bottom of the lower arc plate 110 slides along the slide groove 13 to keep the upper arc plate 56 and the lower arc plate 110 vertically corresponding. The positions of the support belt 55 and the upper arc plate 56 can be fine-tuned through the moving notch 68 of the connecting plate 64, so as to clamp and fix the drive bridge body 4 with different arm lengths. When the pressure plate 510 squeezes the top of both sides of the drive axle body 4, the upper arc plate 56 slides along the connecting plate 64 through the plug column 65 and the elastic force of the return spring 66 adjusts itself, and the drive axle body 4 enters the test station. The box body composed of the front box 21, the movable frame 2 and the rear box 11 wraps the inside of the test bench 1. The noise generated by the drive axle body 4 during operation is monitored by the noise monitor, and the interference from the external environment is reduced. The main shaft connecting end of the drive axle body 4 is connected to the driving shaft of the detection equipment 12 and a torque test is carried out. After the test is completed, the drive axle body 4 is sent out in the original direction.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A harvester drive axle assembly operation detection device, comprising a test bench (1), characterized in that: Slide rails (3) are fixed on both sides of the test bench (1), and a moving frame (2) is slidably mounted on the slide rails (3). A clamping assembly (5) is provided at the bottom of the moving frame (2), and the clamping assembly (5) includes a moving groove (53). A moving groove (53) is opened at the top of the moving frame (2), and two moving plates (54) are symmetrically slidably connected in the moving groove (53). Suspension ropes (59) slide through both sides of the moving plates (54), and a support belt (55) is connected to the bottom of the suspension rope (59). A drive axle body (4) is arranged between the two groups of the support belts (55). A detection device (12) is installed at the driving shaft position of the drive axle body (4) on the top of the test bench (1), and the drive axle body (4) is opposite to the support belt (55). The top position is covered with a pressure plate (510), the tops of both ends of the drive bridge body (4) are provided with upper arc plates (56), and the upper arc plates (56) are connected to the pressure plate (510), the surface of the test bench (1) located at the bottom of the upper arc plate (56) is provided with a lower arc plate (110), and the lower arc plate (110) is in contact with the bottom of both ends of the drive bridge body (4), the surface of the test bench (1) located at the bottom of the support belt (55) is provided with a socket plate (16), and the socket plate (16) can be connected to the pressure plate (510), the upper arc plate (56) and the lower arc plate (110) are provided with a connecting assembly (6) on the same side, and the connecting assembly (6) includes a vertical frame (61), the bottom of the vertical frame (61) is connected to the lower arc plate (110), and the upper arc plate (5 6) slides along the vertical frame (61), the clamping assembly (5) further comprises a sliding frame (51), the sliding frame (51) is fixed on the top of the moving frame (2), the two groups of suspension ropes (59) of the moving plate (54) are fixed with connecting blocks (514) on the top, and the connecting blocks (514) slide along the two sides of the sliding frame (51) respectively, the top of the pressing plate (510) is provided with a vertical rod (513), and the vertical rod (513) slides through the moving plate (54) and is fixed with a sliding sleeve (515), the inner ring of the sliding frame (51) is provided with a top plate (52), and the sliding sleeve (515) is slidably sleeved on the top plate (52), and the top of the moving frame (2) is fixed with a third electric push rod (58) at the position corresponding to the two ends of the sliding frame (51), and the third electric push rod The extended end (58) is fixedly connected to the sliding frame (51), a second electric push rod (57) is fixedly provided at the top of the moving frame (2) at positions corresponding to the two ends of the top plate (52), and the extended end of the second electric push rod (57) is fixedly connected to the top plate (52), a suspension rope (59) on one side of the moving plate (54) is fixedly connected to the support belt (55), and a hook (512) is fixedly provided on the suspension rope (59) on the other side of the moving plate (54), and the hook (512) can be buckled to the other end of the support belt (55), the connecting assembly (6) further includes a connecting column (69), a connecting column (69) is fixedly provided on the top of the pressing plate (510), and the top of the connecting column (69) is fixedly connected to the vertical rod (513), and the top of the connecting column (69) is sleeved with a connecting plate (64),A movable notch (68) is provided at a position of the connecting plate (64) corresponding to the connecting column (69), and the connecting column (69) slides along the movable notch (68). The other end of the connecting plate (64) is slidably plugged with a plug column (65), and the bottom of the plug column (65) is fixed to the upper arc plate (56). The plug column (65) is located at the top of the connecting plate (64) and is sleeved with a return spring (66), and the two ends of the return spring (66) are fixedly connected to the top of the plug column (65) and the connecting plate (64). The connecting plate (64) is threadedly plugged with a locking bolt (67) corresponding to the outer side of the plug column (65), and the locking bolt (67) can be pressed and contacted with the plug column (65). The interior of the vertical frame (61) is slidably connected to the limit frame (63), and the interior of the limit frame (63) is slidably plugged with a plug plate (62), and one end of the plug plate (62) is fixedly connected to the connecting plate (64).

2. The harvester drive axle assembly operation detection device according to claim 1, characterized in that: A screw rod (32) is rotatably mounted inside the slide rail (3) via a bearing, and a motor (31) is fixed to the outer end of the slide rail (3). The output end of the motor (31) is fixedly connected to the screw rod (32), and the bottom ends of the two ends of the moving frame (2) are threadedly sleeved on the surface of the screw rod (32).

3. The harvester drive axle assembly operation detection device according to claim 1, characterized in that: The test bench (1) is provided with a slide groove (13) on the surface of the lower arc plate (110) and the socket plate (16); a second slider (18) is provided at the bottom of the lower arc plate (110); a first slider (15) is provided at the bottom of the socket plate (16); and both the first slider (15) and the second slider (18) slide along the slide groove (13); a bidirectional cylinder (14) is fixed on the surface of the test bench (1); and two extended ends of the bidirectional cylinder (14) are fixedly connected to the tops of the two groups of first sliders (15); a spring telescopic rod (19) is fixed to the top of the second slider (18); and the top of the spring telescopic rod (19) is fixedly connected to the lower arc plate (110).

4. The harvester drive axle assembly operation detection device according to claim 3, characterized in that: Insertion rods (511) are fixed at the four corners of the bottom of the pressure plate (510), a slot is provided at the top of the socket plate (16) at a position corresponding to the insertion rod (511), and the bottom of the insertion rod (511) is slidably inserted into the slot, a first electric push rod (17) is fixed inside the first sliding block (15), and the extended end of the first electric push rod (17) is fixedly connected to the bottom of the socket plate (16).

5. The harvester drive axle assembly operation detection device according to claim 1, characterized in that: A rear box (11) is fixed to a surface of the test bench (1) located outside the detection device (12), a front box (21) is fixed to a side of the mobile frame (2) away from the rear box (11), and the front box (21), the mobile frame (2) and the rear box (11) can form a box body, and a noise monitor is arranged inside the rear box (11).

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