Four-wheel trailer for towing tank

Abstract

The four-wheel trailer comprises a rectangular trailer frame, a side bridge is arranged in the middle of the trailer frame, mounting cavities with downward openings are formed in the four corners of the trailer frame respectively, partition plates are arranged in the mounting cavities and divide the mounting cavities into shielding chambers and walking chambers, driving mechanisms are arranged in the shielding chambers, and walking wheels are arranged in the walking chambers. A protection plate is matched with the bottom of the shielding chamber; according to the four-wheel trailer for the towing tank, the four driving mechanisms are arranged in the four corners of the trailer, the walking wheels are directly driven through the alternating-current servo motors, the motion state of each walking wheel is accurately adjusted, the control precision is high, the response speed is high, the speed adjusting range is wide, a transmission structure is omitted, the structure of the trailer is reasonably utilized, and the trailer is convenient to use. In addition, the driving mechanism is arranged in the shielding chamber, and a partition plate and a protection plate are arranged, so that a magnetic field generated by a driving system is shielded, hardware interference resistance is achieved, and the precision of a ship model dragging experiment is improved.

Description

Technical Field

[0001] The utility model relates to a measurement technology, in particular to a four-wheel trailer for a towing pool. Background Art

[0002] The existing towing tank trailer is driven by a DC motor to drive the two forward wheels to rotate, and cooperate with the two driven wheels to realize the movement of the camel cart. However, the two forward wheels and the two driven wheels are connected by a transmission structure such as a rotating shaft. A rotating shaft limiting structure needs to be added to the bottom of the trailer, which greatly increases the weight of the trailer and occupies the space at the bottom of the trailer, seriously affecting the miniaturization and aesthetics of the trailer structure design. Moreover, the DC motor is directly installed on the trailer, which will generate changes in the surrounding magnetic field when working, which will interfere with other electronic components and affect the accuracy of the ship model towing experiment. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model provides a four-wheel trailer for towing a water tank. By arranging four AC servo drive mechanisms in the four corners of the trailer, the transmission structure is eliminated, the trailer's own structure is reasonably utilized, the trailer weight is reduced, and the drive system is subjected to hardware anti-interference, thereby improving the accuracy of the ship model towing experiment.

[0004] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: a four-wheel trailer for towing a water pool, comprising a rectangular frame, a side bridge provided in the middle of the frame, and installation cavities with downward openings at the four corners of the frame, a partition provided in the installation cavity, and the partition dividing the installation cavity into a shielding room and a walking room, a driving mechanism provided in the shielding room, and a walking wheel provided in the walking room, the driving mechanism drives the walking wheel to rotate, the bottom of the walking wheel is lower than the bottom surface of the frame, and the bottom of the shielding room is equipped with a protective plate.

[0005] Preferably, the driving mechanism includes an AC servo motor and a reducer, the AC servo motor is fixed to the protective plate, the reducer is fixed to the protective plate through a mounting bracket, and the output shaft of the AC servo motor is transmission-connected to the reducer.

[0006] Preferably, the traveling wheel coaxial sleeve is provided with a rotating shaft, the rotating shaft passes through the partition, a coupling is provided on a section of the rotating shaft facing the reducer, and the rotating shaft is connected to the reducer through the coupling.

[0007] Preferably, bearings are sleeved on both ends of the rotating shaft, the inner wall of the bearing is sleeved on the outer wall of the rotating shaft, the inner wall of the bearing is fixed to the wheel frame, and the wheel frame is fixed to the top wall of the walking chamber.

[0008] Preferably, a maintenance hole is provided on one side of the walking room relative to the partition, and a plurality of reinforcing rods are provided on the bottom of the walking room.

[0009] In summary, the present invention has achieved the following technical effects:

[0010] The utility model discloses a four-wheel trailer for towing a water tank. Four driving mechanisms are arranged in the four corners of the trailer. The traveling wheels are directly driven by an AC servo motor, and the motion state of each traveling wheel is precisely adjusted. The utility model has high control accuracy, fast response speed, strong load capacity, low maintenance cost, and a wide speed regulation range. In addition, the transmission structure is removed, the structure of the trailer itself is reasonably utilized, and the weight of the trailer is reduced. In addition, the driving mechanism is arranged in a shielded room, and partitions and protective plates are provided to shield the magnetic field generated by the driving system, thereby realizing hardware anti-interference and improving the accuracy of the ship model towing experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of a four-wheel trailer for towing a water pool according to the present invention;

[0012] Figure 2 This is a schematic structural diagram of the driving mechanism of the four-wheel trailer for towing a water pool of the present invention;

[0013] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Frame; 2. Side axle; 3. Mounting cavity; 4. Protective plate; 5. Travel wheel; 6. Maintenance hole; 7. Reinforcement rod; 8. Wheel carrier; 9. Rotating shaft; 10. Coupling; 11. Mounting frame; 12. Reducer; 13. AC servo motor; 14. Partition. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below with reference to the accompanying drawings.

[0015] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0018] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0020] Example 1:

[0021] like Figure 1 As shown, a four-wheel trailer for towing a water pool includes a rectangular frame 1, a side bridge 2 is provided in the middle of the frame 1, and mounting cavities 3 with downward openings are respectively provided at the four corners of the frame 1. A partition 14 is provided in the mounting cavity 3, and the partition 14 separates the mounting cavity 3 into a shielding room and a walking room. A driving mechanism is provided in the shielding room, and a walking wheel 5 is provided in the walking room. The driving mechanism drives the walking wheel 5 to rotate, and the bottom of the walking wheel 5 is lower than the bottom surface of the frame 1. The bottom of the shielding room is equipped with a protective plate 4; wherein the frame 1, the protective plate 4, and the partition 14 are all made of metal.

[0022] The four-wheel trailer for towing a water tank in this embodiment has four driving mechanisms arranged in the four corners of the trailer, and the AC servo motor 13 directly drives the running wheel 5, so as to accurately adjust the motion state of each running wheel 5, thereby achieving high control accuracy, fast response speed, strong load capacity, low maintenance cost, and a wide speed regulation range. In addition, the transmission structure is removed, the structure of the trailer itself is reasonably utilized, and the weight of the trailer is reduced. In addition, the driving mechanism is arranged in a shielded room, and a partition 14 and a protective plate 4 are provided to shield the magnetic field generated by the driving system, thereby achieving hardware anti-interference and improving the accuracy of the ship model towing experiment.

[0023] like Figure 2 As shown, the driving mechanism includes an AC servo motor 13 and a reducer 12 . The AC servo motor 13 is fixed to the protective plate 4 . The reducer 12 is fixed to the protective plate 4 through a mounting bracket 11 . The output shaft of the AC servo motor 13 is in transmission connection with the reducer 12 .

[0024] The traveling wheel 5 is coaxially sleeved with a rotating shaft 9, and the rotating shaft 9 passes through a partition 14. A coupling 10 is provided on a section of the rotating shaft 9 facing the reducer 12, and the rotating shaft 9 is connected to the reducer 12 through the coupling 10; bearings are sleeved at both ends of the rotating shaft 9, and the inner wall of the bearing is sleeved on the outer wall of the rotating shaft 9, and the inner wall of the bearing is fixed to the wheel frame 8, and the wheel frame 8 is fixed to the top wall of the traveling chamber; a maintenance hole 6 is opened on the side of the traveling chamber relative to the partition 14, and a plurality of reinforcing rods 7 are provided at the bottom of the traveling chamber; the provision of the maintenance hole 6 can facilitate workers to observe the traveling wheel 5 and replace damaged traveling wheels 5.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A four-wheel trailer for towing a water pool, characterized in that: It includes a rectangular frame, a side bridge is provided in the middle of the frame, and installation cavities with downward openings are respectively provided at the four corners of the frame. A partition is provided in the installation cavity, and the partition divides the installation cavity into a shielding room and a walking room. A driving mechanism is provided in the shielding room, and a walking wheel is provided in the walking room. The driving mechanism drives the walking wheel to rotate, and the bottom of the walking wheel is lower than the bottom surface of the frame. The bottom of the shielding room is equipped with a protective plate.

2. A four-wheel trailer for towing a water pool according to claim 1, characterized in that: The driving mechanism includes an AC servo motor and a reducer. The AC servo motor is fixed to the protective plate. The reducer is fixed to the protective plate through a mounting bracket. The output shaft of the AC servo motor is in transmission connection with the reducer.

3. A four-wheel trailer for towing a water pool according to claim 2, characterized in that: The traveling wheel coaxial sleeve is provided with a rotating shaft, the rotating shaft passes through the partition, and a coupling is provided on a section of the rotating shaft facing the reducer, and the rotating shaft is connected to the reducer through the coupling.

4. A four-wheel trailer for towing a water pool according to claim 3, characterized in that: Both ends of the rotating shaft are sleeved with bearings, the inner wall of the bearing is sleeved on the outer wall of the rotating shaft, the inner wall of the bearing is fixed to the wheel frame, and the wheel frame is fixed to the top wall of the walking chamber.

5. The four-wheel trailer for towing a water pool according to claim 1, characterized in that: A maintenance hole is provided on one side of the walking room relative to the partition plate, and a plurality of reinforcing rods are provided on the bottom of the walking room.

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