A forklift anti-dumping ability testing device

Abstract

The present invention relates to the technical field of forklift performance testing, and discloses a forklift anti-dumping ability testing device, which includes a simulated load, a test platform and a winch, a tilting platform is arranged at the center of the test platform, a forklift to be tested is parked on the tilting platform, the forklift to be tested forks the simulated load and lifts it to the maximum lifting limit, a movable crane is erected on the test platform, a winch is arranged on the crane, a steel cable is wound around the winch, a sling is connected to the end of the steel cable, and the simulated load is hoisted on the sling. The advantages of the present invention compared with the prior art are: the simulation is performed by continuously increasing the inclination angle of the tilting platform, the data is more realistic, the inclination direction of the tilting platform can be adjusted steplessly, and a variety of working conditions can be simulated, the simulated load is hoisted by a winch, and the dumping of the forklift to be tested is prevented from damaging the device, and a winch torque adjustment device is provided to achieve real-time adjustment of the winch torque size and direction to meet the above requirements.

Description

Technical Field

[0001] The invention relates to the technical field of forklift performance testing, and in particular to a forklift anti-dumping ability testing device. Background Art

[0002] A forklift is a widely used cargo handling tool, which often has a cargo lifting function. However, this function can easily change the center of gravity of the forklift. When a forklift with cargo is working or driving on an inclined ground, the center of gravity can easily be located outside the horizontal projection plane formed by its tires, eventually leading to a tipping accident.

[0003] When designing a forklift, if you want to calibrate the forklift's ability to resist tipping over on a slope, you need to conduct a simulation test on the slope. However, simulation tests can easily cause the forklift to tip over and cause damage to the equipment. Currently, there is a lack of dedicated testing equipment that can simultaneously provide slope simulation and avoid damage caused by tipping. Summary of the invention

[0004] The technical problem to be solved by the present invention is that there is currently a lack of equipment for testing the dumping ability of a forklift, and a device for testing the anti-dumping ability of a forklift is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a forklift anti-dumping ability testing device, which includes a simulated load, a test platform and a winch. A tilting platform is arranged at the center of the test platform, and the forklift to be tested is parked on the tilting platform. The forklift to be tested forks the simulated load and lifts it to the maximum lift limit. A bracket is arranged on the test platform, and a movable crane is arranged on the bracket. The winch is arranged on the crane, and a steel cable is wound on the winch. The end of the steel cable is connected to a sling. A first hook is arranged at the bottom of the sling, and a second hook is arranged on the top of the simulated load and connected to the first hook.

[0006] The test platform is hollow inside, and a cross universal joint is provided at the bottom to be hinged with the tilting platform, a multi-stage planetary reducer is provided at the bottom of the tilting platform, a direction adjustment motor is provided at the bottom of the tilting platform to be power-connected with the multi-stage planetary reducer, the central sun gear of the multi-stage planetary reducer serves as the input end, and the external gear ring serves as the output end, wherein the outer layer of the output end gear ring is provided with a second hinge block and an encoder induction ring, the outer layer of the cross universal joint is provided with a plurality of hydraulic cylinders, the free ends of the plurality of hydraulic cylinders are jointly fixedly connected with a lifting ring, a slip ring is rotatably provided at the top of the lifting ring, a first hinge block is provided at the top of the slip ring, a tilt link is hingedly provided on the first hinge block, and the end of the tilt link is hingedly provided with the second hinge block.

[0007] The crane is provided with a winch motor, the output end of the winch motor is connected to the torque converter with power, the output end of the torque converter is connected to the reducer with power, the output end of the reducer is connected to the winch with power, the torque converter is hollow and filled with hydraulic oil, one side of the interior is rotatably connected to the active centrifugal wheel, and the other side is rotatably connected to the driven wheel, a pitch adjustment ring is provided on the outer side of the driven wheel, a partition block is fixedly provided in the torque converter, a reflux channel is provided in the center of the partition block, and a drive channel is provided around the outer side, a first baffle cavity is provided around one end of the active centrifugal wheel in the torque converter housing, a second baffle cavity is provided around one end of the driven wheel, a plurality of second mounting rods are arranged around one side of the partition block facing the driven wheel, and a second baffle blade is rotatably arranged on the second mounting rod, a plurality of first mounting rods are arranged around one side of the pitch adjustment ring facing the partition block, and a first baffle blade is rotatably arranged on the first mounting rod, the second baffle blade is slidably nested with the first baffle blade, and the first baffle blade and the second baffle blade are arranged between the second baffle cavity and the outer side of the driven wheel.

[0008] Furthermore, the driven wheel is provided with a plurality of centrifugal blades, the direction of the centrifugal blades is arranged to point to the axis of the driven wheel, and the direction of the active centrifugal wheel blades is arranged to discharge fluid axially toward the outside of the torque converter input end and radially toward the outside of the active centrifugal wheel.

[0009] Furthermore, the reflux channel connects the center of the driven wheel with the center of the active centrifugal wheel, the first baffle cavity connects the outer side of the active centrifugal wheel with one end of the drive channel, and the second baffle cavity connects the outer side of the pitch adjustment ring with the other end of the drive channel.

[0010] Furthermore, the driven wheel is provided with an output shaft, the root of the output shaft is rotatably sleeved with a pitch variable sleeve, the pitch variable sleeve is fixedly connected to the pitch adjustment ring, the pitch variable sleeve is sleeved with a pitch encoder, a pitch motor is arranged outside the output shaft outside the torque converter, the output end of the pitch motor is dynamically connected to the pitch variable sleeve, and the output shaft extends to the outside of the pitch motor.

[0011] Furthermore, a tilt encoder cooperating with an encoder induction ring is provided at the bottom of the tilt platform, and an angle sensor is provided at the bottom of the multi-stage planetary reducer housing.

[0012] Furthermore, a first guide rail is set on the bracket, a second guide rail is slidably set on the first guide rail, the first guide rail and the second guide rail are perpendicular to each other, and the crane is slidably set on the second guide rail.

[0013] Furthermore, a plurality of vertical guide rods are provided under the crane, the sling is slidably connected to the guide rods, a tension sensor is provided on the top of the sling, a mounting block is provided on the top of the tension sensor, the bottom of the steel cable is fixedly connected to the mounting block, a plurality of vertical limit pins are provided on the top of the sling, and the mounting block is vertically slidably connected to the limit pins.

[0014] The advantages of the present invention compared with the prior art are:

[0015] The ground terrain during tipping is simulated by continuously increasing the tilt angle of the tilting platform. When the tilting platform causes the forklift to start tipping, the forklift under test is taken as the extreme anti-tip angle, and the data is more realistic.

[0016] The tilting direction of the tilting platform can be adjusted steplessly and can simulate a variety of working conditions.

[0017] A winch is used to lift the simulated load to prevent the forklift under test from tipping over and causing damage to the device, and a winch torque adjustment device is provided to achieve real-time adjustment of the winch torque size and direction to meet the above requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the test platform of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the lifting ring of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the multi-stage planetary reducer of the present invention.

[0022] Figure 5 It is a structural schematic diagram of a crane of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the sling of the present invention.

[0024] Figure 7 It is a schematic structural diagram of the torque converter of the present invention.

[0025] Figure 8 It is a schematic diagram of the internal structure of the torque converter of the present invention.

[0026] Fig. 9 It is a structural schematic diagram of the driven wheel of the present invention.

[0027] Fig.10 It is a schematic diagram of the tilting platform of the present invention when it is tilted.

[0028] Fig.11 It is a schematic structural diagram of the tilting platform of the present invention when the tilting angle is changed.

[0029] Fig.12 It is a structural schematic diagram of the second baffle blade of the present invention.

[0030] Fig.13 It is a structural schematic diagram of the first baffle blade of the present invention.

[0031] Fig.14 It is a schematic diagram of the forward tipping test of the present invention.

[0032] Fig.15 Schematic diagram of the side tipping test of the present invention.

[0033] As shown in the figure: 1. Forklift to be tested; 2. Simulated load; 3. Test platform; 4. Bracket; 5. First guide rail; 6. Second guide rail; 7. Crane; 8. Winch; 9. Lifting device; 10. Cross universal joint; 11. Tilt platform; 12. Hydraulic cylinder; 13. Lifting ring; 14. Slip ring; 15. First hinge block; 16. Tilt connecting rod; 17. Second hinge block; 18. Multi-stage planetary reducer; 19. Angle sensor; 20. Direction adjustment motor; 21. Encoder induction ring; 22. Tilt encoder; 23. Reducer; 24. Torque converter; 25. Winch motor; 26. Steel cable; 27. Guide rod; 28. Limit pin; 29. ​​Mounting block; 30. Tension sensor; 31. First hook; 32. Second hook; 33. Pitch motor; 34. Active centrifugal wheel; 35. Separator; 36. Fin; 37. Reflow channel; 38. First baffle chamber; 39. Drive channel; 40. Second baffle chamber; 41. Pitch adjustment ring; 42. Driven wheel; 43. Variable pitch bushing; 44. Output shaft; 45. Pitch encoder; 46. Worm gear; 47. Centripetal blade; 48. First baffle blade; 49. Second baffle blade; 50. First mounting rod; 51. Second mounting rod DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] Combined with Figure 1 , Attachment Figure 5 and attached Figure 6 A forklift anti-dumping ability testing device comprises a simulated load 2, a test platform 3 and a winch 8. A tilting platform 11 is arranged at the center of the test platform 3. A forklift 1 to be tested is parked on the tilting platform 11. The forklift 1 to be tested forks the simulated load 2 and lifts it to the maximum lift limit. A bracket 4 is arranged on the test platform 3. A movable crane 7 is arranged on the bracket 4. The winch 8 is arranged on the crane 7. A steel cable 26 is wound around the winch 8. The end of the steel cable 26 is connected to a sling 9. A first hook 31 is arranged at the bottom of the sling 9. A second hook 32 is arranged on the top of the simulated load 2 and connected to the first hook 31.

[0036] The present application simulates the terrain when the forklift 1 to be tested dumps by tilting the tilting platform 11, and makes the forklift 1 to be tested lift the simulated load 2 to simulate the load during actual work, and selects the simulated load 2 of corresponding weight according to the design load of the forklift 1 to be tested. The tilt degree of the tilting platform 11 is continuously increased during the test, and when the forklift 1 to be tested dumps, the tilt angle of the tilting platform 11 at that time is recorded as the ultimate anti-dumping angle of the forklift 1 to be tested.

[0037] In actual forklift tipping accidents, they can be roughly divided into forward tipping and side tipping. In order to simulate these two situations, the present application has the following structure.

[0038] Combined with Figure 2 , Attachment Figure 3 and attached Figure 4 The test platform 3 is hollow inside, and a cross universal joint 10 is provided at the bottom to be hinged with the tilting platform 11. A multi-stage planetary reducer 18 is provided at the bottom of the tilting platform 11. A direction adjustment motor 20 is provided at the bottom of the tilting platform 11 to be power-connected with the multi-stage planetary reducer 18. The central sun gear of the multi-stage planetary reducer 18 serves as the input end, and the external gear ring serves as the output end, wherein the outer layer of the output end gear ring is provided with a second hinge block 17 and an encoder induction ring 21, and a plurality of hydraulic cylinders 12 are provided on the outer layer of the cross universal joint 10, and the free ends of the plurality of hydraulic cylinders 12 are fixedly connected to the lifting ring 13 together, and a slip ring 14 is rotatably provided on the top of the lifting ring 13, and a first hinge block 15 is provided on the top of the slip ring 14, and a tilt link 16 is hingedly provided on the first hinge block 15, and the end of the tilt link 16 is hingedly provided with the second hinge block 17.

[0039] In the above structure, when the hydraulic cylinder 12 moves the lifting ring 13 up and down, the slip ring 14 pulls the outer gear ring of the multi-stage planetary reducer 18 through the tilt link 16, so that the tilt platform 11 swings around the cross universal joint 10 as a whole, so that the tilt platform 11 has a tilt angle.

[0040] Combined with Fig.10 and attached Fig.11 When the direction adjustment motor 20 drives the multi-stage planetary reducer 18, the outer gear ring rotates, causing the second articulated block 17 to rotate around the tilting platform 11, and the slip ring 14 is rotatably arranged on the lifting ring 13. The first articulated block 15 and the tilting link 16 rotate synchronously with the second articulated block 17, thereby changing the tilting direction of the tilting platform 11. Since the slip ring 14 and the lifting ring 13 are decoupled by a rotational connection, there is no interference between the rotation of the slip ring 14 and the lifting and lowering of the lifting ring 13.

[0041] The above mechanism can simultaneously adjust the tilt angle and tilt direction of the tilting platform 11, and can achieve the following Fig.14 The forward tilt shown, as shown in the attached Fig.15 Sideways tipping as shown, as well as tipping simulations at more angles.

[0042] Combined with Figure 4 A tilt encoder 22 cooperating with an encoder induction ring 21 is provided at the bottom of the tilt platform 11, and an angle sensor 19 is provided at the bottom of the multi-stage planetary reducer 18 housing. The tilt encoder 22 senses the tilt direction of the tilt platform 11, and the angle sensor 19 senses the tilt angle of the tilt platform 11.

[0043] A first guide rail 5 is mounted on the bracket 4 , a second guide rail 6 is slidably mounted on the first guide rail 5 , the first guide rail 5 and the second guide rail 6 are perpendicular to each other, and a crane 7 is slidably mounted on the second guide rail 6 .

[0044] As the tilting platform 11 tilts, the positions of the simulated load 2 and the second hook 32 on the top thereof will constantly change. By installing the crane 7 via the mutually perpendicular first guide rail 5 and second guide rail 6, the crane 7 can be moved by the simulated load 2 during the tilting of the tilting platform 11, so that the crane 7 is always above the second hook 32.

[0045] The present application tilts the tilting platform 11 to make the forklift 1 to be tested tip over, and records the tilting angle of the tilting platform 11 when tipping occurs as the ultimate anti-tipping angle of the forklift 1 to be tested. However, the impact of the forklift 1 to be tested and the simulated load 2 on the tilting platform 11 after tipping will damage the above-mentioned tilting angle and direction adjustment mechanism, and the forklift 1 to be tested also needs to be restored and repaired after tipping. In order to avoid the above situation, the present invention adopts a winch 8 to suspend the simulated load 2. When tipping, the winch 8 lifts the simulated load 2 to change the center of gravity of the forklift 1 to be tested, so that the forklift 1 to be tested returns to the center. When the tilting platform 11 increases its tilting angle, the winch 8 needs to lower the simulated load 2 to cooperate. Therefore, the winch 8 needs to have the ability to adjust the torque size and direction in real time. In order to achieve this ability, the present application provides a torque converter 24 to intervene in the power connection between the winch motor 25 and the winch 8.

[0046] Combined with Figure 5 , Attachment Figure 7 , Attachment Figure 8 and attached Fig. 9The crane 7 is provided with a winch motor 25, the output end of the winch motor 25 is connected to the torque converter 24, the output end of the torque converter 24 is connected to the reducer 23, and the output end of the reducer 23 is connected to the winch 8. The torque converter 24 is hollow and filled with hydraulic oil. One side of the inside is rotatably connected to the active centrifugal wheel 34. The blade direction of the active centrifugal wheel 34 is set to axially discharge liquid toward the outer side of the input end of the torque converter 24 and radially discharge liquid toward the outer side of the active centrifugal wheel 34. The other side is rotatably connected to the driven wheel 42. The driven wheel 42 is provided with a plurality of centripetal blades 47. The direction of the centripetal blades 47 is set to point to the axis of the driven wheel 42. The outer side of the driven wheel 42 is provided with a pitch adjustment A node ring 41 and a partition block 35 are fixedly provided in the torque converter 24. A reflux channel 37 is provided in the center of the partition block 35, and a drive channel 39 is provided around the outer side. A first baffle chamber 38 is provided around one end of a driving centrifugal wheel 34 in the housing of the torque converter 24, and a second baffle chamber 40 is provided around one end of a driven wheel 42. The reflux channel 37 connects the center of the driven wheel 42 with the center of the driving centrifugal wheel 34. The first baffle chamber 38 connects the outer side of the driving centrifugal wheel 34 with one end of the drive channel 39. The second baffle chamber 40 connects the outer side of the pitch adjustment ring 41 with the other end of the drive channel 39. The drive channel 39 is provided with a plurality of fins 36 and extends to the outside of the torque converter 24.

[0047] Combined with Fig.12 and attached Fig.13 A plurality of second mounting rods 51 are arranged around the partition block 35 toward one side of the driven wheel 42, and the second mounting rods 51 are rotatably arranged to set the second deflector blade 49. A plurality of first mounting rods 50 are arranged around the pitch adjustment ring 41 toward one side of the partition block 35, and the first mounting rods 50 are rotatably arranged to set the first deflector blade 48. The second deflector blade 49 is slidably nested with the first deflector blade 48, and the first deflector blade 48 and the second deflector blade 49 are arranged between the second deflector cavity 40 and the outer side of the driven wheel 42.

[0048] In the above structure, when the pitch adjustment ring 41 rotates to a certain extent, the angle of the straight line formed by the multiple first mounting rods 50 and the multiple second mounting rods 51 is deflected at the same time, so that the pitch between the multiple blades formed by the first deflector blade 48 and the second deflector blade 49 changes. When the pitch adjustment ring 41 rotates, the distance between the first mounting rod 50 and the multiple second mounting rods 51 also changes, so that the first deflector blade 48 and the second deflector blade 49 are connected by sliding nesting to be decoupled.

[0049] The driven wheel 42 is provided with an output shaft 44, the root of the output shaft 44 is rotatably sleeved with a pitch-changing sleeve 43, the pitch-changing sleeve 43 is fixedly connected to the pitch-adjusting ring 41, the pitch-changing sleeve 43 is sleeved with a pitch encoder 45, the outside of the torque converter 24 is provided with a pitch motor 33 located outside the output shaft 44, the output end of the pitch motor 33 is connected to the pitch-changing sleeve 43 for power connection, Figure 8 For reference, the pitch motor 33 is connected to the variable pitch sleeve 43 through a worm gear reducer, wherein the variable pitch sleeve 43 is connected to the worm gear 46 , and the output shaft 44 extends to the outside of the pitch motor 33 .

[0050] The pitch motor 33 drives the pitch-changing sleeve 43 to rotate the pitch adjustment ring 41 to change the pitch, and the adjustment angle can be sensed by the pitch encoder 45 .

[0051] The torque conversion principle of the torque converter 24 in the present application is: when the direction of the blade as a whole formed by the first baffle blade 48 and the second baffle blade 49 is not parallel to the centripetal blade 47, the external power drives the active centrifugal wheel 34 to rotate, driving the hydraulic oil to flow, passing through the first baffle chamber 38, the drive channel 39 and the second baffle chamber 40 in sequence and reaching the pitch adjustment ring 41, where the flow direction of the hydraulic oil is deflected by the blade as a whole formed by the first baffle blade 48 and the second baffle blade 49, and the deflected flow direction has an angle with the centripetal blade 47, and the hydraulic oil impacts the centripetal blade 47. The driven wheel 42 is rotated to output torque. After the hydraulic oil leaves the centrifugal blade 47, it enters the reflux channel 37 and is sucked by the active centrifugal wheel 34 to repeat the above cycle. The angle between the centrifugal blade 47 and the flow direction of the hydraulic oil is adjusted by rotating the pitch adjustment ring 41 to change the angle between the blade assembly formed by the first baffle blade 48 and the second baffle blade 49 and the centrifugal blade 47, thereby changing the force applied to the centrifugal blade 47. The larger the angle between the blade assembly formed by the first baffle blade 48 and the second baffle blade 49 and the centrifugal blade 47, the greater the output torque of the torque converter 24.

[0052] When the direction of the blade as a whole formed by the first deflector blade 48 and the second deflector blade 49 is parallel to the radial blade 47, the angle of attack between the radial blade 47 and the hydraulic oil flow direction is zero, and the hydraulic oil cannot exert force on the radial blade 47. At this time, the output torque is zero.

[0053] In addition, the torque converter 24 can reverse the pitch adjustment ring 41, so that the hydraulic oil pushes the centripetal blades 47 in the opposite direction, so that the driven wheel 42 is reversed, and the above-mentioned output torque adjustment capability is still maintained during the reverse operation.

[0054] Combined with Figure 5 and attached Figure 6 A plurality of vertical guide rods 27 are provided under the crane 7, the sling 9 is slidably connected to the guide rods 27, a tension sensor 30 is provided on the top of the sling 9, a mounting block 29 is provided on the top of the tension sensor 30, the bottom of the steel cable 26 is fixedly connected to the mounting block 29, a plurality of vertical limit pins 28 are provided on the top of the sling 9, the mounting block 29 is vertically slidably connected to the limit pins 28, and the tension borne by the sling 9 can be sensed in real time through the above structure.

[0055] During the test, the tilting platform 11 increases the tilt angle at a relatively low angular velocity. During this process, the height of the simulated load 2 is continuously reduced, so that the sling 9 receives a relatively small downward pulling force from the simulated load 2. In this state, the pitch motor 33 continuously adjusts the pitch, so that the winch 8 lowers the steel cable 26 at a reduced speed in coordination with the simulated load 2. The downward speed of the steel cable 26 is required to make the pulling force on the sling 9 approach zero.

[0056] When the inclination angle of the tilting platform 11 reaches the angle that causes the forklift 1 to be tested to start to tip over, the height of the simulated load 2 will drop rapidly, causing the sling 9 to be subjected to a large pulling force. When the tension sensor 30 senses a large downward pulling force, the tilting of the tilting platform 11 is stopped, and the angle sensor 19 records the inclination angle of the tilting platform 11 at this time as the ultimate anti-tipping angle of the forklift 1 to be tested.

[0057] When the angle recording is completed, the pitch motor 33 controls the pitch to reverse, so that the winch 8 reels in the steel cable 26 to lift the sling 9. In this state, the gravity of the simulated load 2 is borne by the winch 8. When the forklift 1 to be tested loses its load, its center of gravity changes and falls back to an empty state, thereby stopping the forklift 1 to be tested from tipping over and returning to a stable state.

[0058] After the forklift 1 to be tested is stable, the hydraulic cylinder 12 pulls the tilting platform 11 back to a horizontal state to end the test.

[0059] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by it, and does not deviate from the purpose of the invention, and does not creatively design a structure and implementation method similar to the technical solution, they should all fall within the protection scope of the present invention.

Claims

1. A forklift anti-dumping ability testing device, comprising a simulated load (2), a test platform (3) and a winch (8), characterized in that: A tilting platform (11) is arranged at the center of the test platform (3), and a forklift (1) to be tested is parked on the tilting platform (11). A bracket (4) is arranged on the test platform (3), and a movable crane (7) is arranged on the bracket (4). A winch (8) is arranged on the crane (7), and a steel cable (26) is wound around the winch (8). A lifting device (9) connected to the simulated load (2) is arranged at the end of the steel cable (26); The test platform (3) is hollow inside, and is provided with a cross universal joint (10) at the bottom, which is hinged to the tilting platform (11). A multi-stage planetary reducer (18) is provided at the bottom of the tilting platform (11). A direction adjustment motor (20) is provided at the bottom of the tilting platform (11) and is power-connected to the multi-stage planetary reducer (18). The central sun gear of the multi-stage planetary reducer (18) serves as an input end, and an external gear ring serves as an output end, wherein the outer layer of the output end gear ring is provided with a second hinge block (17) and an encoder induction ring (21). The outer layer of the cross universal joint (10) is provided with a plurality of hydraulic cylinders (12), and the free ends of the plurality of hydraulic cylinders (12) are jointly fixedly provided with a lifting ring (13), and a slip ring (14) is rotatably provided at the top of the lifting ring (13). The second hinge block (17) is hingedly provided with a tilting link (16), and the end of the tilting link (16) is hingedly connected to the top of the slip ring (14); The crane (7) is provided with a winch motor (25), the output end of the winch motor (25) is connected to a torque converter (24), the output end of the torque converter (24) is connected to a reducer (23), the output end of the reducer (23) is connected to a winch (8), the torque converter (24) is hollow and filled with hydraulic oil, one side of the inside is rotatably connected to a driving centrifugal wheel (34), and the other side is rotatably connected to a driven wheel (42), a pitch adjustment ring (41) is provided on the outside of the driven wheel (42), a partition block (35) is fixedly provided in the torque converter (24), and a reflux gas flow is provided at the center of the partition block (35). A driving channel (39) is provided on the outer side thereof; a first baffle chamber (38) is provided in the housing of the torque converter (24) and is arranged around one end of the driving centrifugal wheel (34); a second baffle chamber (40) is provided around one end of the driven wheel (42); a plurality of second baffle blades (49) are provided on the partition block (35) and are rotated around one side of the driven wheel (42); a plurality of first baffle blades (48) are provided on the pitch adjustment ring (41) and are rotated around one side of the partition block (35); and the second baffle blades (49) are slidably nested and connected with the first baffle blades (48).

2. A forklift anti-dumping ability testing device according to claim 1, characterized in that: The driven wheel (42) is provided with a plurality of centripetal blades (47), the centripetal blades (47) being arranged to point toward the axis of the driven wheel (42), and the blades of the driving centrifugal wheel (34) being arranged to discharge liquid axially toward the outside of the input end of the torque converter (24) and radially toward the outside of the driving centrifugal wheel (34).

3. A forklift anti-dumping ability testing device according to claim 1, characterized in that: The driven wheel (42) is provided with an output shaft (44), the root of the output shaft (44) is rotatably sleeved with a pitch-changing shaft sleeve (43), the pitch-changing shaft sleeve (43) is fixedly connected to a pitch-adjusting ring (41), the pitch-changing shaft sleeve (43) is sleeved with a pitch encoder (45), a pitch motor (33) is arranged outside the torque converter (24) and located outside the output shaft (44), the output end of the pitch motor (33) is dynamically connected to the pitch-changing shaft sleeve (43), and the output shaft (44) is dynamically connected to a reducer (23).

4. A forklift anti-dumping ability testing device according to claim 1, characterized in that: A tilt encoder (22) matching the encoder induction ring (21) is provided at the bottom of the tilt platform (11), and an angle sensor (19) is provided at the bottom of the housing of the multi-stage planetary reducer (18).

5. The forklift anti-dumping ability testing device according to claim 1, characterized in that: A first guide rail (5) is mounted on the bracket (4), a second guide rail (6) is slidably mounted on the first guide rail (5), the first guide rail (5) and the second guide rail (6) are perpendicular to each other, and a crane (7) is slidably mounted on the second guide rail (6).

6. A forklift anti-dumping ability testing device according to claim 1, characterized in that: A plurality of vertical guide rods (27) are provided below the crane (7), the sling (9) is slidably connected to the guide rods (27), a tension sensor (30) is provided on the top of the sling (9), a mounting block (29) is provided on the top of the tension sensor (30), the bottom of the steel cable (26) is fixedly connected to the mounting block (29), a plurality of vertical limit pins (28) are provided on the top of the sling (9), and the mounting block (29) is vertically slidably connected to the limit pins (28).

Images