Hydraulic motor tilting and swinging test bed with adjustable radial load of output shaft

Abstract

The invention relates to the field of hydraulic motors, in particular to an output shaft radial load adjustable hydraulic motor tilting and swinging test bench, which comprises a base, a detection platform is limited on the base, and the detection platform and the base are connected together in a swinging manner through a swinging connecting assembly. The detection platform is provided with a test assembly used for detecting the performance of the motor. The output shaft of the tested motor is driven to be connected with the extension shaft, the balancing weight is eccentrically arranged on the extension shaft, when the load environment of the output shaft of the motor is simulated, the load applied by the rotating balancing weight acts on the output shaft all the time, and the tested motor is driven to carry out inclined swing and vibration tests, so that the test precision is improved. Complex working conditions possibly encountered by the motor in actual use are simulated, so that the test result has higher application value.

Description

Technical Field

[0001] The invention relates to the field of motors, and in particular to a hydraulic motor tilting and swinging test bench with adjustable output shaft radial load. Background Art

[0002] In modern industry, hydraulic motors are the core actuators of various mechanical equipment. Their performance directly determines the power output, response speed, and operational stability of the equipment. In actual use, the output shaft of the hydraulic motor may generate radial force due to external forces (such as coupling misalignment and sudden load changes), resulting in micro-wear, eccentric vibration, and even bearing bending or damage. Therefore, radial load tests are required to detect material and design defects. In addition, marine hydraulic motors are often affected by dynamic loads such as tilting, bumping, and vibration, which can lead to oil leakage or seal failure. Therefore, tilt and swing tests are required to ensure that the motor can still operate stably under extreme tilt angles or high-frequency swings.

[0003] With the advancement of science and technology, technicians in related fields have also made extensive optimizations to the technical means used to test hydraulic motor performance. For example, Chinese patent publication number CN118775375A discloses a test platform and test method for hydraulic motor output shaft vibration. Its technical solution includes a test platform, a clamping rail, a clamping slider, a motor bracket, a clamping mechanism, and a test mechanism. The device uses the clamping mechanism to position and clamp the hydraulic motor output shaft, improving testing efficiency and accuracy. Furthermore, a load mechanism simulates the hydraulic motor's operating environment, further improving the accuracy of output shaft vibration testing.

[0004] However, the above motor test platform still has some shortcomings in actual use:

[0005] The above-mentioned device drives the ramp block 1 and the limiting slide 1 to move in the direction away from the clamping slide rail under the restriction of the adjusting slide groove 1 through the electric slider 1. The movement of the limiting slide 1 will drive the circular counterweight block to move downward under the restriction of the square limit block 1 and the square limit block 2, so that the gravity of the circular counterweight block is applied to the extension shaft, applying a load to the extension shaft, so that the extension has a tendency to bend along the load direction, so as to simulate the actual working environment of the hydraulic motor. Since it drives the circular counterweight block to slide up and down along the limiting slide 1 on the ramp block 1, that is, through the sliding resistance between the inclined limiting slide 1 and the circular counterweight block, a radial load is applied to the extension shaft, and when driving the motor output shaft and the extension shaft During the continuous rotation of the extension shaft, the ramp block 1 and the limiting slideway 1 will always be limited on the detection platform, and the radial load applied by the extension shaft and the circular counterweight block will present a relative rotation effect with the extension shaft, that is, the load applied by the circular counterweight block will always only act on the rotating section on the lower side of the extension shaft when the extension shaft and the output shaft rotate. This will cause the load of the circular counterweight block to act on the rotating extension shaft. The load on the same section on the extension shaft will change continuously with the change of the rotation angle of the extension shaft, thereby affecting the overall vibration amplitude of the extension shaft. That is, the vibration amplitude of the extension shaft after the load is applied is relatively small, which is difficult to meet the applicability of the detection data.

[0006] Therefore, based on the above-stated viewpoint, there is still room for improvement in the existing technical means for detecting motor quality. Summary of the Invention

[0007] To solve the above problems, the present invention provides a hydraulic motor tilt and swing test bench with adjustable output shaft radial load, comprising a base, a detection platform at the upper limit of the base, the detection platform and the base being swingably connected together via a swing connection assembly, and a test assembly for testing motor performance being provided on the detection platform, the test assembly comprising:

[0008] The extension platform is limited to one side of the detection platform and extends toward the base.

[0009] The load unit includes at least one counterweight block and a connecting block. A connecting guide rod is eccentrically connected between the counterweight block and the connecting block. An extension shaft is provided on the side of the connecting block close to the detection platform. A coupling is connected to the extension shaft to correspond to the output shaft of the tested motor.

[0010] The vibration sensor is limited on one side of the coupling and is used to detect the vibration characteristics of the motor output shaft.

[0011] Preferably, the test assembly also includes a swinging guide rod provided on the detection platform and passing through the base, the end of the swinging guide rod away from the detection platform is rotatably connected to a driven guide rod, the end of the driven guide rod away from the swinging guide rod is rotatably connected to a driving rotating rod, and the upper limit of the driving rotating rod is connected to a driving motor connected to the base.

[0012] Preferably, the connecting guide rod is connected to a driven slider which is limitedly inserted on the extension platform.

[0013] Preferably, the swing connection assembly includes a plurality of telescopic connecting rods provided between the detection platform and the base, and the telescopic sections of the telescopic connecting rods are rotatably connected to the base.

[0014] Preferably, the detection platform is also provided with a clamping member for limiting the motor, the clamping member includes a guide groove formed on the detection platform, two sliding clamps slide symmetrically in the guide groove, and adjustable clamping blocks are symmetrically provided on opposite sides of the two sliding clamps.

[0015] Preferably, two back sides of the same sliding splint are symmetrically provided with bending splints of telescopic structure, and the two bending splints on the same sliding splint extend to both sides of the adjustable clamping block respectively.

[0016] Preferably, a bidirectional screw rod is provided between the detection platform and the two sliding clamps to limit the position. Two threads in opposite directions are provided at both ends of the bidirectional screw rod. The two sliding clamps are driven to slide and adjust corresponding to the two threads respectively.

[0017] Preferably, an adjustment groove is formed on the connecting block, an adjustment slider connected to the extension shaft is provided in the adjustment groove for sliding limit, and an adjustment screw threaded through the adjustment groove is connected to the adjustment slider.

[0018] Preferably, the extension platform is slidably provided on the detection platform, and a locking rod for locking the extension platform after sliding adjustment is provided at the upper limit position of the detection platform.

[0019] Preferably, a limiting sliding groove is formed on the extension platform corresponding to the driven sliding block.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The present invention drives the output shaft of the test motor to connect with an extension shaft, and eccentrically arranges a counterweight on the extension shaft. When simulating the load environment of the motor output shaft, the load applied by the rotating counterweight will always act on the output shaft. By driving the test motor to simulate tilt, swing, and vibration, the complex dynamic environment that the motor may encounter in actual use is realistically reproduced, making the test results more valuable for reference.

[0022] 2. The present invention adjusts the relative distance between the connecting block and the extension shaft to achieve corresponding adjustment of the eccentricity between the counterweight block and the extension shaft. The rotation amplitude of the counterweight block at different eccentricities can accurately control the radial load applied to the motor output shaft to meet different testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the base of the present invention.

[0026] Figure 3 It is a structural diagram of the test component of the present invention.

[0027] Figure 4 It is a front view of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the clamping member of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the load unit of the present invention.

[0030] Figure 7 It is a structural schematic diagram of the adjusting slider of the present invention.

[0031] Figure 8 It is a structural schematic diagram of the telescopic block of the present invention.

[0032] Figure 9 It is a schematic diagram of an embodiment of the present invention.

[0033] In the figure, 1, base; 10, detection platform; 11, swing connection assembly; 110, telescopic connecting rod; 2, test assembly; 20, extension platform; 21, load cell; 210, counterweight block; 211, connection block; 212, connecting guide rod; 22, extension shaft; 220, coupling; 23, vibration sensor; 24, swing guide rod; 240, driven guide rod; 241, driving rod; 242, driving motor; 25, Driven slider; 250, limiting slide; 26, clamping member; 260, guide groove; 261, sliding splint; 262, adjustable clamping block; 263, bending splint; 264, bidirectional screw; 27, adjusting groove; 270, adjusting slider; 271, adjusting screw; 28, locking rod; 280, through hole; 29, telescopic block; 290, through groove; 291, driven slider; 2910, threaded section; 2911, smooth section. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 To the attached Figure 9 The embodiments of the present invention are described in detail.

[0035] An embodiment of the present application discloses a hydraulic motor tilt and swing test bench with adjustable radial load on the output shaft. The present application is mainly used in the process of performance testing of the motor, and technically achieves the effect of simulating the state of the motor when used in extreme environments, and then testing the performance of the motor used in extreme environments; in particular, during the testing process, by adjusting the relative eccentricity between the counterweight block and the extension shaft, the load applied to the motor output shaft can be accurately adjusted; further, the present application also drives the motor to rotate and swing while tilting and swinging, so as to further simulate complex dynamic environments and improve the accuracy of the test data.

[0036] Example 1: Reference Figure 1 As shown, a hydraulic motor tilt and swing test bench with adjustable output shaft radial load includes a base 1, a detection platform 10 is provided on the upper limit of the base 1, the detection platform 10 and the base 1 are swingably connected together through a swing connection component 11, and a test component 2 for testing motor performance is provided on the detection platform 10.

[0037] During use, after the motor to be tested is limited on the test platform 10, the motor output shaft is connected through the test component 2, and the motor limited on the test platform 10 is driven to tilt, swing or vibrate at the same time, simulating the tilt, swing and vibration environment that the motor may encounter in actual use, so as to verify its structural strength, functional stability and safety, and ensure that the motor can withstand various complex dynamic environments during transportation and use, reducing the risk of damage.

[0038] Reference Figures 2 to 4 As shown, the test assembly 2 is used to test the motor performance; specifically, the test assembly 2 includes:

[0039] The extension platform 20 is located on one side of the detection platform 10 and extends toward the base 1 .

[0040] The load unit 21 includes at least one counterweight 210 and a connecting block 211. A connecting guide rod 212 is eccentrically connected between the counterweight 210 and the connecting block 211. An extension shaft 22 is provided on the side of the connecting block 211 that is closer to the testing platform 10. A coupling 220 is connected to the extension shaft 22 to connect to the output shaft of the motor under test. A rigid coupling with high rigidity and low inertia, such as a cross-shaft rigid coupling, is preferably used.

[0041] The vibration sensor 23 is positioned on one side of the coupling 220 and is used to detect the vibration characteristics of the motor output shaft. This is a conventional existing technical means and will not be described in detail here.

[0042] During use, the extension shaft 22, the coupling 220 and the output shaft of the motor under test are first connected accordingly, so that the vibration sensor 23 at the coupling 220 is in contact with the motor output shaft. Due to the eccentric setting between the counterweight 210 and the connecting guide rod 212 and the connecting block 211, in the initial stage, after the motor output shaft is connected to the coupling 220 and the extension shaft 22 accordingly, it is subjected to the gravity load of the counterweight 210 on the connecting guide rod 212, the connecting block 211, the extension shaft 22 and the coupling 220, thereby simulating the radial runout that occurs during the use of the motor output shaft, and causing the vibration environment generated by the motor output shaft.

[0043] When a load environment needs to be simulated for vibration testing, the rotation of the motor output shaft drives the coupling 220, the extension shaft 22, the connecting block 211, the connecting guide rod 212 and the counterweight 210 to rotate synchronously. Due to the eccentric arrangement between the counterweight 210 and the connecting guide rod 212 and the connecting block 211, the motor output shaft, the coupling 220 and the extension shaft 22 as a whole are initially subjected to the eccentric gravity load of the counterweight 210, that is, the radial load acting on the output shaft. After driving the coupling 220, the extension shaft 22, the connecting block 211, the connecting guide rod 212 and the counterweight 210 to rotate synchronously, the eccentrically connected connecting guide rod 212 and the counterweight 210 generate periodic radial force due to uneven mass distribution during rotation, forming a dynamic centrifugal effect, so that the radial load always acts stably on the output shaft, ensuring that the vibration amplitude of the motor output shaft is relatively stable when rotating. The rotating motor output shaft is then detected by the vibration sensor 23, thus completing the effect of vibration detection of the motor under a load environment.

[0044] Further, refer to Figure 3 and Figure 4 As shown, in order to simulate the vibration characteristics of the motor output shaft in a tilting and swinging environment, the test component 2 also includes a swing guide rod 24 provided on the detection platform 10 and passing through the base 1. An opening is formed on the base 1 corresponding to the swing guide rod 24. The end of the swing guide rod 24 away from the detection platform 10 is rotatably connected to a driven guide rod 240. The end of the driven guide rod 240 away from the swing guide rod 24 is rotatably connected to a driving rotating rod 241. The upper limit of the driving rotating rod 241 is connected to a driving motor 242 connected to the base 1, and the driving rotating rod 241 rotates around the output shaft of the driving motor 242.

[0045] When in use, the rotation of the driving motor 242 drives the driving rotating rod 241 to rotate, and the driving rotating rod 241 rotates to drive one end of the driven guide rod 240 to rotate about the output shaft of the driving motor 242, and at the same time, the other end of the driven guide rod 240 is connected to the swing guide rod 24 limit, so that the driven guide rod 240 is driven by the circumferentially rotating driving rotating rod 241 to slide back and forth in the horizontal direction. Since the driven guide rod 240 is rotatably connected to one end of the swing guide rod 24, the swing guide rod 24 limit is penetrated on the base 1 and connected to the detection platform 10, the sliding of the driven guide rod 240 has a tendency to drive the swing guide rod 24 and the detection platform 10 to deflect along the rotating shaft connected to the driven guide rod 240 as the axis, thereby driving the detection platform 10 and the test motor limited thereon to tilt and swing, so as to simulate the vibration characteristics of the motor output shaft in a tilt and swing environment.

[0046] Further, refer to Figure 3 and Figure 4 As shown, to constrain the detection platform 10 on the base 1 so that it can be driven to tilt and swing, the swing connection assembly 11 includes a plurality of telescopic links 110 disposed between the detection platform 10 and the base 1. The telescopic sections of the telescopic links 110 are rotatably connected to the base 1. As an optional embodiment, in this embodiment, four telescopic links 110 are used and are distributed in a rectangular shape corresponding to the detection platform 10.

[0047] During use, when the driven guide rod 240 is driven to slide in the direction close to the drive motor 242, the driven guide rod 240 pulls the swing guide rod 24 to tilt in the direction close to the drive motor 242 (that is, tilted upward relative to the counterweight block 210). At this time, the two telescopic links 110 connected to the detection platform 10 and close to the drive motor 242 side extend and deflect upward corresponding to the deflection of the detection platform 10, and the two telescopic links 110 on the other side of the detection platform 10 away from the drive motor 242 retract downward and deflect at the same time, so that the detection platform 10 appears tilted.

[0048] When the driven guide rod 240 is driven to slide in the direction away from the drive motor 242, the driven guide rod 240 pushes the swing guide rod 24 to tilt in the direction away from the drive motor 242 (that is, tilted downward relative to the counterweight block 210). At this time, the telescopic links 110 on both sides of the detection platform 10 show that the two telescopic links 110 on the side close to the drive motor 242 are contracted and deflected, and the two telescopic links 110 on the side away from the drive motor 242 are extended and deflected, causing the detection platform 10 to tilt to the other side. Through the reciprocating rotation of the output shaft of the drive motor 242, the detection platform 10 and the motor limited thereon are also driven to tilt back and forth accordingly, thereby presenting a state of continuous swinging.

[0049] Reference Figure 3and Figure 4 As shown, in order to limit the connecting block 211, the connecting guide rod 212 and the counterweight block 210 in the initial state so as to drive the output shaft of the test motor to be connected to the extension shaft 22 and the coupling 220 accordingly, the connecting guide rod 212 is connected to a driven slider 25 that is limitedly inserted on the extension platform 20.

[0050] Reference Figure 4 and Figure 5 As shown, the testing platform 10 is also equipped with a clamping member 26 for limiting the position of the motor. Clamping member 26 includes a guide groove 260 formed on the testing platform 10. Two sliding clamps 261 slide symmetrically within the guide groove 260. Adjustable clamping blocks 262 are symmetrically positioned on opposite sides of the two sliding clamps. During use, the motor to be tested is placed between the two sliding clamps 261. The two sliding clamps 261 are then driven to slide relative to each other along the guide groove 260, driving the connected adjustable clamping blocks 262 to abut against the motor, forming an initial limiting clamping effect on the motor.

[0051] Reference Figure 4 and Figure 5 As shown, since the motor and the testing platform 10 need to be driven to perform a vibration test in a tilting and swinging environment, in order to prevent the motor from loosening during the swinging process, two symmetrically arranged bending clamps 263 with a telescopic structure are provided on the back side of the same sliding clamp 261. The bending clamps 263 are self-locking and telescopic structures, and the two bending clamps 263 on the same sliding clamp 261 extend to either side of the adjustable clamping block 262. During use, the two sliding clamps 261 and the adjustable clamping block 262 hold the motor in place on the testing platform 10. The relative sliding of the two sliding clamps 261 also drives the connected bending clamps 263 to slide synchronously, so that the two bending clamps 263 are respectively distributed at both ends of the motor. The multiple bending clamps 263 and the adjustable clamping block 262 support the motor together, thereby clamping the motor in place on the testing platform 10 and preventing the motor from loosening during the testing process.

[0052] Reference Figure 4 and Figure 5As shown, in order to drive the two sliding clamps 261 to slide relative to each other to form a limiting clamping effect on the motor, a bidirectional screw 264 is provided between the detection platform 10 and the two sliding clamps 261. The two ends of the bidirectional screw 264 have two threads running in opposite directions. The two sliding clamps 261 are driven to slide and adjust in accordance with the two threads. When in use, after the motor to be tested is placed on the detection platform 10, the bidirectional screw 264 is driven to rotate in the forward direction. The two sliding clamps 261 slide toward each other through the connected threads, thereby driving the connected adjustable clamping block 262 and the bent clamp 263 to limit and hold the motor. After the test is completed, when the motor needs to be released from the limit, the bidirectional screw 264 is driven in the reverse direction to drive the two sliding clamps 261 to slide away from each other, so that the adjustable clamping block 262 and the bent clamp 263 are separated from the motor.

[0053] Reference Figure 6 and Figure 7 As shown, in order to improve the accuracy of the result data when performing environmental simulation testing on the motor, an adjustment slot 27 is formed on the connecting block 211. An adjustment slider 270 connected to the extension shaft 22 is provided in the adjustment slot 27 for sliding movement. An adjustment screw 271 that passes through the adjustment slot 27 is connected to the adjustment slider 270. During use, since the adjustment slider 270 and the extension shaft 22 are integrally connected to the output shaft of the tested motor, the adjustment screw 271 is driven to rotate. The adjustment screw 271 drives the adjustment slider 270 to slide along the adjustment slot 27 through the thread. In other words, the adjustment slider 270 and the extension shaft 22 are driven to slide and adjust the relative position of the connecting block 211, thereby driving the extension shaft 22 and the connecting block 211 to be eccentrically arranged. At this time, the motor to be tested is driven to rotate, and the output shaft of the motor drives the coupling 220, the extension shaft 22, the adjustment slider 270, the connecting block 211, the adjustment screw 271, the connecting guide rod 212 and the counterweight 210 to rotate synchronously.

[0054] The eccentricity between the extension shaft 22 and the connecting block 211 is adjusted by rotating the adjusting screw 271 to adjust the torque of the connecting block 211 when it rotates relative to the extension shaft 22 and the motor output shaft, so that the radial load applied to the offset connecting block 211, the connecting guide rod 212 and the counterweight block 210 when the motor output shaft rotates at the same speed can be adjusted. The eccentricity and the load size correspond to each other, that is, when the eccentricity between the connecting block 211 and the extension shaft 22 is larger, the load applied by the counterweight block 210 as a whole also increases accordingly, and the amplitude of the vibration of the output shaft, the coupling 220 and the extension shaft 22 also increases accordingly. When the eccentricity is smaller, the opposite is true.

[0055] Further, refer to Figure 4As shown, considering that after the connecting block 211, the connecting guide rod 212 and the counterweight block 210 are eccentrically adjusted, the overall rotation radius with the motor output shaft as the axis will also change accordingly, so in order to avoid the extension platform 20 hindering the overall rotation of the counterweight block 210, the extension platform 20 is slidably penetrated on the detection platform 10, and a locking rod 28 for locking the extension platform 20 after the sliding adjustment is penetrated at the upper limit position of the detection platform 10, and a plurality of through holes 280 corresponding to the locking rod 28 are formed on the extension platform 20 for the locking rod 28 to be inserted.

[0056] At the same time, refer to Figure 4 As shown, a limiting groove 250 is formed on the extension platform 20 corresponding to the driven slider 25, which limits and supports the driven slider 25 while allowing the driven slider 25 to detach from the extension platform 20 along the limiting groove 250. The limiting groove 250 is preferably a dovetail groove structure, and the driven slider 25 is also correspondingly set to a trapezoidal structure slider to adapt to the limiting groove 250.

[0057] During use, in the initial state, the extension platform 20 is slid away from the detection platform 10, so that the driven slider 25 slides into the limiting slide groove 250, and then the locking rod 28 is driven to be inserted into the corresponding through hole 280 to limit the sliding of the extension platform 20. The extended extension platform 20 forms an initial support limit for the counterweight block 210, the connecting guide rod 212, the connecting block 211 and the extension shaft 22, thereby facilitating the connection of the output shaft of the test motor.

[0058] Example 2: Reference Figures 6 to 9 As shown, based on Example 1, to further simulate the vibration characteristics of the motor output shaft under extreme conditions, the adjustment slider 270 and the extension shaft 22 are connected by a telescopic block 29. The telescopic section and fixed section of the telescopic block 29 are connected to the adjustment slider 270 and the extension shaft 22, respectively. The adjustment slider 270 is provided with a through slot 290 corresponding to the telescopic block 29. A driven slide 291 extends downward from the adjustment screw 271 and penetrates the telescopic block 29. The driven slide 291 is provided with a threaded section 2910 and a smooth section 2911. The threaded section 2910 of the driven slide 291 is threadedly connected to the fixed section of the telescopic block 29. It should be noted that in the initial state, the driven slide 291 simultaneously restricts the telescopic section and the fixed section of the telescopic block 29 to limit the telescopic adjustment of the telescopic block 29. At this time, the telescopic section and the fixed section of the telescopic block 29 are relatively contracted, causing the extension shaft 22 to abut against the adjustment slider 270.

[0059] When in use, the adjusting screw 271 is driven to rotate and the adjusting slider 270 is driven to slide to either end of the adjusting slot 27. At this time, the adjusting screw 271 is continued to rotate. Since the adjusting slot 27 limits the adjusting slider 270, the adjusting screw 271 drives the driven slider 291 to rotate synchronously and slides in the direction away from the adjusting slider 270 through the thread, so that the driven slider 291 releases the restriction on the telescopic block 29. After the driven slider 25 is separated from the telescopic section and the fixed section of the telescopic block 29, the telescopic section and the fixed section of the telescopic block 29 are driven again. The adjusting slider 270, the adjusting screw 271, the driven slider 291, the connecting block 211, the connecting guide rod 212 and the counterweight block 210 slide in the direction away from the extension shaft 22, that is, the telescopic section and the fixed section of the telescopic block 29 are driven to extend relative to each other, so that the extension shaft 22 and the adjusting slider 270 are spaced apart by a distance, and then the adjusting screw 271 and the driven slider 291 are driven to rotate in the opposite direction and move downward, so that the smooth section 2911 of the driven slider 291 is reinserted into the extended telescopic block 29, that is, the driven slider 291 is inserted into the telescopic section of the telescopic block 29.

[0060] Based on the above, the motor output shaft is driven to rotate, and the rotation of the motor output shaft synchronously drives the coupling 220, the extension shaft 22, the extended telescopic block 29, the adjusting slider 270, the adjusting screw 271, the driven slide 291, the connecting block 211, the connecting guide rod 212 and the counterweight 210 to rotate synchronously. Due to the extension of the telescopic block 29, the extension shaft 22 is spaced apart from the adjusting slider 270 and the connecting block 211. At the same time, a through groove 290 is formed on the adjusting slider 270, and the telescopic section of the telescopic block 29 is sleeved on the driven slide 291. At this time, after the extension shaft 22 and the connecting block 211 are driven to rotate as a whole, due to the connecting guide rod 212, the counterweight 210 and the connecting The block 211 is eccentric relative to the extension shaft 22, and when the connecting block 211 and the telescopic block 29 rotate, a centrifugal force is applied by the eccentric load applied by the eccentrically rotating counterweight block 210. When the direction of the centrifugal force is rotated to correspond to the position of the through groove 290 on the adjusting slider 270, the telescopic block 29 is driven to swing along the through groove 290 with the driven slide 291 as the axis. Therefore, during the rotation process, the driven slide 291, the adjusting screw 271, the adjusting slider 270, the connecting block 211, the connecting guide rod 212 and the counterweight block 210 corresponding to the telescopic section of the telescopic block 29 are also swung to a certain extent in the process of rotating with the extension shaft 22 and the output shaft as the axis.

[0061] Example 3: Reference Figures 7 to 9As shown, on the basis of Example 1 and Example 2, in order to further simulate the vibration characteristics of the motor when used in extreme environments, based on the above, the drive motor 242 is activated to drive the detection platform 10, the motor, the extension shaft 22, the connecting block 211 and the counterweight block 210 to tilt and swing, and at the same time, the extension shaft 22, the eccentrically adjusted connecting block 211 and the counterweight block 210 are driven by the motor to rotate, so that while the motor itself tilts and swings, the load connected to its output shaft also tilts, swings and rotates synchronously, so as to further simulate and detect the performance of the motor when used in extreme environments.

[0062] During operation: The first step is to limit the motor to be tested on the detection platform 10, and connect the motor output shaft to the test component 2 accordingly, and drive it to tilt, swing and sway through the test component 2 to simulate the vibration characteristics of the motor when used in a tilted and swinging environment, and then perform testing through the test component 2.

[0063] Step 2: After completing the corresponding connection between the test motor output shaft and the test component 2, the starting motor drives the test component 2 to rotate synchronously through the motor output shaft. During the process of the test component 2 rotating with the motor output shaft, a radial load is synchronously applied to the motor output shaft to simulate the vibration characteristics of the motor vibration under a load state environment.

[0064] Step 3: Apply an eccentric load to the motor output shaft through test component 2, and drive the motor to tilt and swing at the same time to simulate the vibration characteristics of the motor output shaft in a complex and extreme environment.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

[0066] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hydraulic motor tilt and swing test bench with adjustable output shaft radial load, comprising a base (1), characterized in that: The upper limit of the base (1) is provided with a detection platform (10), and the detection platform (10) and the base (1) are swingably connected together via a swing connection component (11). A test component (2) for testing motor performance is provided on the detection platform (10), and the test component (2) includes: An extension platform (20) is located on one side of the detection platform (10) and extends toward the base (1); The load unit (21) includes at least one counterweight block (210) and a connecting block (211), wherein a connecting guide rod (212) is eccentrically connected between the counterweight block (210) and the connecting block (211), and an extension shaft (22) is provided on a side of the connecting block (211) close to the detection platform (10), and a coupling (220) is connected to the extension shaft (22) to correspond to the output shaft of the motor under test; A vibration sensor (23) is positioned on one side of the coupling (220) and is used to detect vibration characteristics of the motor output shaft.

2. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: The test assembly (2) further comprises a swing guide rod (24) provided on the detection platform (10) and passing through the base (1); the end of the swing guide rod (24) away from the detection platform (10) is rotatably connected to a driven guide rod (240); the end of the driven guide rod (240) away from the swing guide rod (24) is rotatably connected to a driving rotating rod (241); and the upper limit position of the driving rotating rod (241) is connected to a driving motor (242) connected to the base (1).

3. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: The connecting guide rod (212) is connected to a driven slider (25) which is limitedly inserted on the extension platform (20).

4. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: The swing connection assembly (11) comprises a plurality of telescopic connecting rods (110) arranged between the detection platform (10) and the base (1), and the telescopic sections of the telescopic connecting rods (110) are rotatably connected to the base (1).

5. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: The detection platform (10) is also provided with a clamping member (26) for limiting the motor. The clamping member (26) includes a guide groove (260) formed on the detection platform (10). Two sliding clamps (261) slide symmetrically in the guide groove (260). Adjustable clamping blocks (262) are symmetrically provided on opposite sides of the two sliding clamps.

6. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 5, characterized in that: Bending clamps (263) with telescopic structures are symmetrically arranged on two back sides of the same sliding clamp (261), and the two bending clamps (263) on the same sliding clamp (261) extend to both sides of the adjustable clamping block (262) respectively.

7. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: A bidirectional screw rod (264) is provided between the detection platform (10) and the two sliding clamps (261) to limit the position of the detection platform (10). The two ends of the bidirectional screw rod (264) are symmetrically provided with threads in opposite directions. By rotating the bidirectional screw rod (264), the two sliding clamps (261) are synchronously slidably adjusted along the rotation direction of the corresponding threads, thereby realizing the clamping or releasing operation of the motor.

8. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: An adjusting groove (27) is formed on the connecting block (211), an adjusting slider (270) connected to the extension shaft (22) is provided in the adjusting groove (27) for sliding limit, and an adjusting screw (271) threadedly extending through the adjusting groove (27) is connected to the adjusting slider (270).

9. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: The extension platform (20) is slidably mounted on the detection platform (10), and a locking rod (28) is mounted at the upper limit position of the detection platform (10) for locking the extension platform (20) after the sliding adjustment.

10. The hydraulic motor tilt and swing test bench with adjustable output shaft radial load according to claim 1, characterized in that: A limiting sliding groove (250) is formed on the extension platform (20) corresponding to the driven sliding block (25).

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