Loading experiment machine

Abstract

The embodiment of the utility model discloses a loading experiment machine, and relates to the technical field of loading machine teaching aids. The loading experiment machine comprises a front frame, a rear frame, a bucket assembly, a first driving module, a first wheel set, a second wheel set and a steering assembly, the front frame is rotationally connected with the rear frame, the bucket assembly is installed on the front frame, the first wheel set is rotationally connected to the front frame, the first driving module comprises a first driving assembly, and the second driving assembly comprises a second driving assembly. The second driving assembly is connected with the first driving assembly, the first driving assembly is installed on the front frame and connected with the first wheel set, the second wheel set is rotationally connected to the rear frame, the second driving assembly is installed on the rear frame and connected with the second wheel set, and the steering assembly is installed on the front frame and used for driving the first wheel set to steer. Therefore, the internal movement process of the loading experiment machine can be visually observed, comprehensive teaching requirements are met, the loading experiment machine is not disjointed with practical engineering application, and the teaching effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of teaching aids for loaders, and in particular to a loader experimental machine. Background Technology

[0002] Loaders, as important equipment in the field of engineering machinery, are widely used in material loading, unloading, and transportation operations in construction, mining, road construction, and ports. The design and manufacture of loaders involves knowledge from multiple disciplines, including mechanical transmission, hydraulic systems, and electrical control, and is an important part of mechanical engineering education. However, in the teaching of mechanical design and mechanical principles, which are core courses for mechanical engineering majors in higher education institutions, traditional teaching methods often use static models or simple demonstration devices, making it difficult to intuitively demonstrate the working principles and design key points of complex mechanical systems such as loaders.

[0003] Existing teaching equipment generally suffers from problems such as closed structure, single function, and poor practicality: students cannot observe the internal mechanism's movement process; the equipment is difficult to meet the comprehensive teaching needs of multiple courses; and it is disconnected from actual engineering applications, affecting teaching effectiveness. Summary of the Invention

[0004] Based on this, it is necessary to provide a loading experimental machine to solve the problems that existing teaching equipment generally suffers from, such as closed structure, single function, and poor practicality: students cannot observe the movement process of the internal mechanism; the equipment is difficult to meet the comprehensive teaching needs of multiple courses; and it is disconnected from actual engineering applications, which affects the teaching effect.

[0005] This utility model provides a loading test machine, which includes: a front frame, a rear frame, a bucket assembly, a first drive module, a first wheel set, a second wheel set, and a steering assembly. The front frame is rotatably connected to the rear frame. The bucket assembly is mounted on the front frame. The first wheel set is rotatably connected to the front frame. The first drive module includes a first drive assembly and a second drive assembly connected to the first drive assembly. The first drive assembly is mounted on the front frame and connected to the first wheel set, driving the first wheel set to rotate. The second wheel set is rotatably connected to the rear frame. The second drive assembly is mounted on the rear frame and connected to the second wheel set, driving the second wheel set to rotate. The steering assembly is mounted on the front frame and is used to drive the first wheel set to steer.

[0006] In one embodiment, the bucket assembly includes a bucket profile, a first connector, a second connector, a third connector, a first drive member, and a second drive member. One end of the bucket profile is rotatably connected to the first connector, the first connector is rotatably connected to the second connector, the middle part of the second connector is rotatably connected to the third connector, and is rotatably connected to the front frame through the first drive member. One end of the third connector is rotatably connected to the bucket profile, and the other end is rotatably connected to the front frame. The third connector is also rotatably connected to the front frame through the second drive member.

[0007] In one embodiment, the bucket assembly further includes a first encoder, which has multiple encoders and is capable of measuring the rotation angle at the connection between the bucket profile and the first connector, the rotation angle at the connection between the second connector and the third connector, and the rotation angle at the connection between the third connector and the frame.

[0008] In one embodiment, the first drive assembly includes a universal joint, a first drive shaft, a first gear set, and a first half-shaft. The second drive assembly is drivenly connected to the universal joint. The universal joint is connected to the first drive shaft. The first drive shaft is connected to the first gear set. The first gear set is connected to the first wheel set through the first half-shaft.

[0009] In one embodiment, the second drive assembly includes a first drive motor, a second gear set, a second drive shaft, a third gear set, and a second half-shaft. The first drive motor is driven by the second gear set, the second gear set is driven by the second drive shaft, the second drive shaft is driven by the third gear set, the third gear set is connected to the second half-shaft, the second half-shaft is connected to the second wheel set, and the second drive shaft is connected to the universal joint.

[0010] In one embodiment, the second drive assembly further includes a second encoder and a third encoder, the second encoder being used to measure the rotation angle of the second drive shaft, and the third encoder being used to measure the rotation angle of the second wheel assembly.

[0011] In one embodiment, the steering assembly includes a first steering module, a first gear, and a second steering module. The first steering module is connected to the second steering module via the first gear, and the second steering module is rotatably connected to the first wheel assembly.

[0012] In one embodiment, the first steering module includes a second drive motor, a fourth gear set, and a connecting shaft. The second steering module includes a rack, a connecting shaft, and a copper slide. The second drive motor is drivenly connected to the fourth gear set, the fourth gear set is drivenly connected to the connecting shaft, the connecting shaft is connected to the first gear, the first gear meshes with the rack, the rack is slidably connected to the copper slide, and the connecting shaft is connected to the copper slide and rotatably connected to the first wheel set.

[0013] The first steering module also includes a steering wheel, which is connected to the connecting shaft.

[0014] In one embodiment, the loading test machine further includes an engine simulation component, which includes a second drive module and an engine simulation module. The second drive module is connected to the engine simulation module and is used to drive the engine simulation module to move.

[0015] The engine simulation component also includes a displacement sensor for measuring the phase difference of the engine simulation module.

[0016] In one embodiment, the loading test machine further includes a brake assembly and a torque sensor, the brake assembly being mounted at one end of the engine simulation module and used to provide resistance;

[0017] The torque sensor is connected to the brake assembly and is used to measure the torque of the brake assembly.

[0018] Implementing the embodiments of this utility model will have the following beneficial effects:

[0019] The loading experimental machine of this utility model has a front frame and a rear frame rotatably connected. The bucket assembly is mounted on the front frame, and the first wheel set is rotatably connected to the front frame. The first drive assembly is mounted on the front frame and connected to the first wheel set, driving the first wheel set to rotate. The second wheel set is rotatably connected to the rear frame, and the second drive assembly is mounted on the rear frame and connected to the second wheel set, driving the second wheel set to rotate. The steering assembly is mounted on the front frame and is used to drive the first wheel set to steer. In this way, the loading experimental machine allows for intuitive observation of the internal motion process, meets comprehensive teaching needs, and is not disconnected from actual engineering applications, thereby improving teaching effectiveness. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] in:

[0022] Figure 1 This is an isometric view of the loading test machine in one embodiment.

[0023] Figure 2 for Figure 1 The diagram shows a schematic of the bucket assembly in the loading test machine.

[0024] Figure 3 for Figure 1 The diagram shows the first drive module, the first wheel set, and the second wheel set in the loading test machine.

[0025] Figure 4 for Figure 1 The diagram shows a steering assembly in the loading test machine.

[0026] Figure 5 for Figure 4 Another angled schematic diagram of the steering component shown.

[0027] Figure 6 for Figure 1 The diagram shows the engine simulation assembly, brake assembly, and torque sensor in the loading test machine.

[0028] Figure label:

[0029] 1. Front frame; 2. Rear frame;

[0030] 3. Bucket assembly; 31. Bucket profile; 32. First connector; 33. Second connector; 34. Third connector; 35. First drive component; 36. Second drive component; 37. First encoder;

[0031] 4. First drive module; 41. First drive assembly; 411. Universal joint; 412. First drive shaft; 413. First gear set; 414. First half-shaft; 42. Second drive assembly; 421. First drive motor; 422. Second gear set; 423. Second drive shaft; 424. Third gear set; 425. Second half-shaft; 426. Second encoder; 427. Third encoder;

[0032] 5. First wheel set; 6. Second wheel set;

[0033] 7. Steering assembly; 71. First steering module; 711. Second drive motor; 712. Fourth gear set; 713. Connecting shaft; 714. Steering wheel; 72. First gear; 73. Second steering module; 731. Rack; 732. Connecting shaft; 733. Copper slide;

[0034] 8. Engine simulation component; 81. Second drive module; 82. Engine simulation module; 83. Displacement sensor; 9. Brake component; 91. Torque sensor. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0040] Please combine them together Figures 1 to 6 The loading test machine provided by this utility model will now be described.

[0041] The loading test machine includes a front frame 1, a rear frame 2, a bucket assembly 3, a first drive module 4, a first wheel set 5, a second wheel set 6, and a steering assembly 7. The front frame 1 is rotatably connected to the rear frame 2. The bucket assembly 3 is mounted on the front frame 1. The first wheel set 5 is rotatably connected to the front frame 1. The first drive module 4 includes a first drive component 41 and a second drive component 42 connected to the first drive component 41. The first drive component 41 is mounted on the front frame 1 and connected to the first wheel set 5. The first drive component 41 drives the first wheel set 5 to rotate. The second wheel set 6 is rotatably connected to the rear frame 2. The second drive component 42 is mounted on the rear frame 2 and connected to the second wheel set 6. The second drive component 42 drives the second wheel set 6 to rotate. The steering assembly 7 is mounted on the front frame 1 and is used to drive the first wheel set 5 to steer.

[0042] Understandably, the front frame 1 and rear frame 2 of the loading experimental machine are rotatably connected. The bucket assembly 3 is mounted on the front frame 1, the first wheel set 5 is rotatably connected to the front frame 1, the first drive assembly 41 is mounted on the front frame 1 and connected to the first wheel set 5, and the first drive assembly 41 drives the first wheel set 5 to rotate. The second wheel set 6 is rotatably connected to the rear frame 2, the second drive assembly 42 is mounted on the rear frame 2 and connected to the second wheel set 6, and the second drive assembly 42 drives the second wheel set 6 to rotate. The steering assembly 7 is mounted on the front frame 1 and is used to drive the first wheel set 5 to steer. In this way, the loading experimental machine can be intuitively observed for its internal motion process, meeting the comprehensive teaching needs and not being disconnected from actual engineering applications, thereby improving the teaching effect.

[0043] It should be noted that the front frame 1 and the rear frame 2 are rotatably connected by a pin to form an integral vehicle body structure. The bucket assembly 3 is connected to the front frame 1 by a hinge and can display the movement posture of the bucket assembly 3.

[0044] In this embodiment, the bucket assembly 3 includes a bucket profile 31, a first connecting member 32, a second connecting member 33, a third connecting member 34, a first driving member 35, and a second driving member 36. One end of the bucket profile 31 is rotatably connected to the first connecting member 32. The first connecting member 32 is rotatably connected to the second connecting member 33. The middle part of the second connecting member 33 is rotatably connected to the third connecting member 34 and rotatably connected to the front frame 1 via the first driving member 35. One end of the third connecting member 34 is rotatably connected to the bucket profile 31, and the other end is rotatably connected to the front frame 1. The third connecting member 34 is also rotatably connected to the front frame 1 via the second driving member 36. Specifically, the first driving member 35 and the second driving member 36 can be electric cylinders. The extension and retraction movement of the first driving member 35 and the second driving member 36 can drive the first connecting member 32, the second connecting member 33, and the third connecting member 34 to move the bucket profile 31, thereby simulating the working posture of a real loader bucket.

[0045] Furthermore, the bucket assembly 3 also includes multiple first encoders 37, each capable of measuring the rotation angle at the connection between the bucket profile 31 and the first connecting member 32, the rotation angle at the connection between the second connecting member 33 and the third connecting member 34, and the rotation angle at the connection between the third connecting member 34 and the frame. By setting multiple first encoders 37, the rotation angles at the connections between the bucket profile 31 and the first connecting member 32, the second connecting member 33 and the third connecting member 34, and the third connecting member 34 and the frame can be measured respectively. These multiple first encoders 37 are connected to external experimental platform software. Through the algorithms of the external experimental platform software, the motion trajectory of the bucket profile 31 is plotted, enabling the study of the working principle and mechanical principles of the bucket profile 31.

[0046] Furthermore, the first drive assembly 41 includes a universal joint 411, a first drive shaft 412, a first gear set 413, and a first half-shaft 414. The second drive assembly 42 is driveably connected to the universal joint 411. The universal joint 411 is connected to the first drive shaft 412. The first drive shaft 412 is connected to the first gear set 413. The first gear set 413 is connected to the first wheel assembly 5 via the first half-shaft 414. Specifically, the universal joint 411 is fixedly connected to the first drive shaft 412. The first drive shaft 412 is driveably connected to the first gear set 413. The first gear set 413 is driveably connected to the first wheel assembly 5 via the first half-shaft 414. The second drive assembly 42 drives the universal joint 411 to rotate, the universal joint 411 drives the first drive shaft 412 to rotate, the first drive shaft 412 drives the first gear set 413 to rotate, the first gear set 413 drives the first half-shaft 414 to rotate, and the first half-shaft 414 drives the first wheel assembly 5 to rotate, thereby realizing the movement of the first wheel assembly 5. The first gear set 413 is a bevel gear set and uses an open structure, which allows students to clearly understand the driving characteristics of the first drive component 41.

[0047] Furthermore, the second drive assembly 42 includes a first drive motor 421, a second gear set 422, a second drive shaft 423, a third gear set 424, and a second half-shaft 425. The first drive motor 421 is driveably connected to the second gear set 422, the second gear set 422 is driveably connected to the second drive shaft 423, the second drive shaft 423 is driveably connected to the third gear set 424, the third gear set 424 is connected to the second half-shaft 425, the second half-shaft 425 is connected to the second wheel assembly 6, and the second drive shaft 423 is connected to a universal joint 411. Specifically, the third gear set 424 is driveably connected to the second half-shaft 425, and the second half-shaft 425 is driveably connected to the second wheel assembly 6. The first drive motor 421 drives the second gear set 422 to rotate the second drive shaft 423. The second drive shaft 423 drives the universal joint 411 and the third gear set 424 to rotate. The universal joint 411 drives the first drive shaft 412 to rotate, the first drive shaft 412 drives the first gear set 413 to rotate, the first gear set 413 drives the first half-shaft 414 to rotate, and the first half-shaft 414 drives the first wheel set 5 to rotate, thus moving the first wheel set 5. The third gear set 424 drives the second half-shaft 425 to rotate, and the second half-shaft 425 drives the second wheel set 6 to rotate, thus moving the second wheel set 6. The third gear set 424 is a differential structure and uses an open design, allowing the second wheel set 6 to achieve differential movement, facilitating observation and simulating the actual structure of the loader.

[0048] Furthermore, the second drive assembly 42 also includes a second encoder 426 and a third encoder 427. The second encoder 426 is used to measure the rotation angle of the second drive shaft 423, and the third encoder 427 is used to measure the rotation angle of the second wheel assembly 6. Specifically, the second encoder 426 and the third encoder 427 can be connected to external experimental platform software to measure the kinematic relationship between the second drive shaft 423 and the second wheel assembly 6.

[0049] Furthermore, the steering assembly 7 includes a first steering module 71, a first gear 72, and a second steering module 73. The first steering module 71 is connected to the second steering module 73 via the first gear 72, and the second steering module 73 is rotatably connected to the first wheel assembly 5. Specifically, the first steering module 71 drives the first gear 72 to rotate, and the first gear 72 drives the first wheel assembly 5 to rotate via the second steering module 73.

[0050] In implementation, the first steering module 71 includes a second drive motor 711, a fourth gear set 712, and a connecting shaft 713. The second steering module 73 includes a rack 731, a coupling 732, and a copper slide 733. The second drive motor 711 is drivenly connected to the fourth gear set 712, which is drivenly connected to the connecting shaft 713. The connecting shaft 713 is connected to the first gear 72, which meshes with the rack 731. The rack 731 is slidably connected to the copper slide 733. The coupling 732 is connected to the copper slide 733 and rotatably connected to the first wheel set 5. Specifically, the coupling 732 is rotatably connected to the copper slide 733. The second drive motor 711 drives the fourth gear set 712 to rotate, the fourth gear set 712 drives the connecting shaft 713 to rotate, the connecting shaft 713 drives the first gear 72 to rotate, the first gear 72 meshes with the rack 731 and drives the rack 731 to move, the rack 731 drives the copper slide 733 to move, the copper slide 733 drives the connecting shaft 732 to swing, and the connecting shaft 732 drives the first wheel set 5 to rotate, so as to realize the steering of the first wheel set 5.

[0051] The first steering module 71 also includes a steering wheel 714, which is connected to a connecting shaft 713. Specifically, by rotating the steering wheel 714, the steering wheel 714 drives the connecting shaft 713 to rotate, which in turn drives the first gear 72 to rotate. The first gear 72 meshes with the rack 731 and drives the rack 731 to move. The rack 731 then drives the copper slide 733 to move, which in turn drives the connecting shaft 732 to swing. The connecting shaft 732 then drives the first wheel set 5 to rotate, thereby achieving steering of the first wheel set 5. In this way, the simulation of multiple transmission systems is realized.

[0052] Furthermore, the loading test machine also includes an engine simulation assembly 8, which includes a second drive module 81 and an engine simulation module 82. The second drive module 81 is connected to the engine simulation module 82 and is used to drive the engine simulation module 82 to move. The second drive module 81 can drive the engine simulation module 82 to move in order to simulate an inline six-cylinder engine.

[0053] The engine simulation assembly 8 also includes a displacement sensor 83, which is used to measure the phase difference of the engine simulation module 82. This allows for the measurement of the phase relationship during operation of the engine simulation module 82.

[0054] Furthermore, the loading test machine also includes a brake assembly 9 and a torque sensor 91. The brake assembly 9 is mounted at one end of the engine simulation module 82 and is used to provide resistance.

[0055] The torque sensor 91 is connected to the brake assembly 9 and is used to measure the torque of the brake assembly 9.

[0056] Specifically, the brake assembly 9 can provide resistance to the engine simulation module 82 and calculate the efficiency of the engine simulation module 82 through the torque sensor 91.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A loading test machine characterized by comprising: The loading test machine comprises a front frame, a rear frame, a bucket assembly, a first driving module, a first wheel set, a second wheel set and a steering assembly, the front frame is rotationally connected with the rear frame, the bucket assembly is installed on the front frame, the first wheel set is rotationally connected with the front frame, the first driving module comprises a first driving assembly and a second driving assembly connected with the first driving assembly, the first driving assembly is installed on the front frame and connected with the first wheel set, the first driving assembly drives the first wheel set to rotate, the second wheel set is rotationally connected with the rear frame, the second driving assembly is installed on the rear frame and connected with the second wheel set, the second driving assembly drives the second wheel set to rotate, and the steering assembly is installed on the front frame and used for driving the first wheel set to steer.

2. The loading tester of claim 1, wherein The bucket assembly comprises a bucket profile, a first connecting piece, a second connecting piece, a third connecting piece, a first driving piece and a second driving piece, one end of the bucket profile is rotationally connected with the first connecting piece, the first connecting piece is rotationally connected with the second connecting piece, the middle part of the second connecting piece is rotationally connected with the third connecting piece and rotationally connected with the front frame through the first driving piece, one end of the third connecting piece is rotationally connected with the bucket profile, the other end is rotationally connected with the front frame, and the third connecting piece is also rotationally connected with the front frame through the second driving piece.

3. The loading tester of claim 2, wherein, The bucket assembly further comprises a first encoder, a plurality of first encoders are arranged and respectively used for measuring the rotation angle of the connection between the bucket profile and the first connecting piece, the rotation angle of the connection between the second connecting piece and the third connecting piece and the rotation angle of the connection between the third connecting piece and the frame.

4. The loading tester of claim 1, wherein The first driving assembly comprises a universal joint, a first driving shaft, a first gear set and a first half shaft, the second driving assembly is in transmission connection with the universal joint, the universal joint is connected with the first driving shaft, the first driving shaft is connected with the first gear set, and the first gear set is connected with the first wheel set through the first half shaft.

5. The loading tester of claim 4, wherein, The second driving assembly comprises a first driving motor, a second gear set, a second driving shaft, a third gear set and a second half shaft, the first driving motor is in transmission connection with the second gear set, the second gear set is in transmission connection with the second driving shaft, the second driving shaft is in transmission connection with the third gear set, the third gear set is connected with the second half shaft, the second half shaft is connected with the second wheel set, and the second driving shaft is connected with the universal joint.

6. The loading tester of claim 5, wherein, The second driving assembly further comprises a second encoder and a third encoder, the second encoder is used for measuring the rotation angle of the second driving shaft, and the third encoder is used for measuring the rotation angle of the second wheel set.

7. The loading tester of claim 1, wherein, The steering assembly comprises a first steering module, a first gear and a second steering module, the first steering module is connected with the second steering module through the first gear, and the second steering module is rotationally connected with the first wheel set.

8. The loading tester of claim 7, wherein, The first steering module comprises a second driving motor, a fourth gear set and a connecting shaft, the second steering module comprises a rack, a connecting shaft and a copper slide, the second driving motor is in transmission connection with the fourth gear set, the fourth gear set is in transmission connection with the connecting shaft, the connecting shaft is connected with the first gear, the first gear is in engagement with the rack, the rack is in sliding connection with the copper slide, the connecting shaft is connected with the copper slide and is in rotational connection with the first wheel set; The first steering module further comprises a steering wheel, and the steering wheel is connected with the connecting shaft.

9. The loading tester of claim 1, wherein, The loading test machine further comprises an engine simulation assembly, and the engine simulation assembly comprises a second driving module and an engine simulation module, the second driving module is in transmission connection with the engine simulation module and is configured to drive the engine simulation module to move; The engine simulation assembly further comprises a displacement sensor, and the displacement sensor is configured to measure a phase difference of the engine simulation module.

10. The loading tester of claim 9, wherein, The loading test machine further comprises a brake assembly and a torque sensor, the brake assembly is installed at one end of the engine simulation module and is configured to provide resistance; The torque sensor is connected with the brake assembly and is configured to measure a torque of the brake assembly.

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