A direct drive active balancing mechanism

Abstract

The utility model relates to the field of logistics transport vehicle, specifically disclose a direct drive type initiative balance mechanism, include: track frame, first guide rail, second guide rail, fixed plate, sliding seat, speed reducer, electric jar subassembly, speed reducer motor and rotation connecting disc, the output shaft of speed reducer is connected directly with rotation connecting disc, realized the speed reducer direct drive drive, can promote transmission efficiency and reduce energy consumption, and speed reducer motor is installed below speed reducer and is offset below speed reducer output shaft, long and short first guide rail and second guide rail are used again to the sliding seat is guided, shorter second guide rail invades above electric jar motor, makes whole structure in lateral and longitudinal assembly space more compact, to can provide more mounting space for controller electric element, make the compactness and light weight level of structure whole higher.

Description

Technical Field

[0001] This utility model belongs to the field of logistics transportation vehicles, and specifically relates to a direct-drive active balancing mechanism. Background Technology

[0002] Self-balancing vehicles are commonly used in rail logistics transport systems, characterized by their ability to maintain a level posture throughout transportation. The active balancing mechanism is the key mechanical structure for achieving this leveling. When the vehicle travels on inclines or declines, the lifting and rotating mechanisms elevate the cargo box and allow it to adaptively rotate, compensating for angle differences and ensuring the box remains level. However, existing self-balancing structures typically use a geared motor to drive a multi-stage reduction gear (such as a combination of worm gears and chains or gears) to rotate the cargo box. This not only suffers from low transmission efficiency and high energy consumption but also results in a large overall structural space for the active balancing mechanism, low integration with electrical components like controllers, and a bulky main frame and body design with limited weight reduction.

[0003] Patent document with application number "CN2022229087130" discloses an automatic balancing unloading and transport device, including a base and a trapezoidal transport box. A lifting bracket is integrally positioned on one side of the upper end of the base. The trapezoidal transport box moves up, down, and rotates on the lifting bracket. From this prior art document and the specification, it can be seen that the adjusting balancing motor 18 decelerates by driving the balancing mechanism 26. The device rotator 15 is a toothed disc or gear disc, and its axis is parallel to and offset from the output end of the adjusting balancing mechanism 26 to form a two-stage transmission. In addition, a similar two-stage transmission structure is also disclosed in patent document with application number "CN202211361936.8". This two-stage transmission method not only has low transmission efficiency and high energy consumption, but also the adjusting balancing motor and the telescopic cylinder are located on both sides of the rotator during loading. Furthermore, the output shaft of the driving balancing mechanism also needs to be laterally offset from the rotating shaft of the rotator. The guide rail is located outside the telescopic cylinder and the balancing motor, so it occupies a large amount of lateral structural space and has low structural compactness.

[0004] The above background information is provided only to assist in understanding the utility model concept and technical solution of this utility model, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The purpose of this invention is to provide a direct-drive active balancing mechanism, thereby overcoming the shortcomings of existing active balancing mechanisms in automatic self-balancing vehicles, such as low transmission efficiency, high energy consumption, large size, and low lightweighting.

[0006] To achieve the above objectives, this utility model provides a direct-drive active balancing mechanism, including a track frame, one end of which is connected to a fixed plate. A sliding seat is installed inside the track frame, and an electric cylinder assembly is connected between the sliding seat and the fixed plate. A reducer is provided on the sliding seat, and the reducer has an input shaft and an output shaft. Both ends of the output shaft extend outward from the reducer and are respectively equipped with a rotating connecting disk and a conductive signal turntable. A worm gear is fitted on the output shaft, and the middle part of the input shaft is a worm structure that matches the worm gear. A geared motor is installed on the side of the reducer facing the fixed plate, and the rotating shaft of the geared motor is coaxially connected to the input shaft. The electric cylinder assembly is arranged side by side with the geared motor. A first guide rail and a second guide rail are respectively provided on both sides of the track frame, and the length of the first guide rail is greater than the length of the second guide rail. The electric cylinder assembly includes a telescopic cylinder and an electric cylinder motor arranged side by side, and the side of the second guide rail extends into the area between the electric cylinder motor and the other end of the track frame.

[0007] Preferably, in the above technical solution, the sliding seat includes a seat plate, which is parallel to the rotating connecting disk. Slider blocks are provided on both sides of the seat plate, and each slider has a slot perpendicular to the seat plate. A side plate is provided on each side of the track frame, perpendicular to the seat plate. The bottoms of the first guide rail and the second guide rail are fixedly connected to the side of the side plate facing the inside of the track frame. The slot engages with both sides of the first guide rail and the second guide rail.

[0008] Preferably, in the above technical solution, the number of sliders on the side of the base plate corresponding to the first guide rail is greater than the number of sliders on the side of the base plate corresponding to the second guide rail.

[0009] Preferably, in the above technical solution, a connecting plate assembly is installed on the base plate, the connecting plate assembly moves close to the second guide rail and is fixedly connected to the slider, the end of the connecting plate assembly is bent upwards towards the side plate and is provided with a trigger block, and two limit switches are provided on the track frame, the two limit switches are spaced apart along the length direction of the second guide rail, and when the sliding seat moves along the second guide rail, the trigger block can trigger the limit switches.

[0010] Preferably, in the above technical solution, the body of the geared motor is offset downwards from the output shaft, and the telescopic cylinder is located between the geared motor and the electric cylinder motor.

[0011] Preferably, in the above technical solution, a controller support frame is provided inside the track frame, and the controller support frame is located between the reduction motor and the fixed plate.

[0012] Preferably, in the above technical solution, a reinforcing beam is connected between the fixing plate and the other end of the track frame, and the reinforcing beam and the track frame are at acute angles to each other.

[0013] Preferably, in the above technical solution, the reducer is provided with a detachable conductive signal circuit board assembly on its outer side, and the conductive signal turntable is located inside the conductive signal circuit board assembly.

[0014] Preferably, in the above technical solution, a first screw hole is provided on the outer side of the reducer, a double-ended stud is installed in the first screw hole, and the conductive signal circuit board assembly is fixedly connected to the end of the double-ended stud by a nut.

[0015] Preferably, in the above technical solution, a take-up groove is provided on the outer side of the reducer, a wire passage is provided on the side of the take-up groove, and several wire separators are provided inside the take-up groove.

[0016] Compared with existing technologies, this utility model has the following beneficial effects: 1. The direct-drive active balancing mechanism in this utility model is directly connected to the rotating connecting plate through the output shaft of the reducer, realizing direct-drive transmission of the reducer, which can improve transmission efficiency and reduce energy consumption. Furthermore, the geared motor is installed below the reducer and offset below the output shaft of the reducer. The first and second guide rails of different lengths are used to guide the sliding seat. The shorter second guide rail intrudes above the electric cylinder motor, making the overall structure more compact in both the horizontal and vertical assembly space, so as to provide more installation space for electrical components such as controllers, and making the overall structure more compact and lightweight.

[0017] 2. In this utility model, the first guide rail and the second guide rail are of different lengths, and the number of sliders mounted on the first guide rail is greater than the number of sliders mounted on the second guide rail, forming an asymmetrical installation form. This makes the width of the track frame smaller and the structure more compact while meeting the strength requirements. Furthermore, the installation posture of the first and second guide rails and the installation posture of the sliders are perpendicular to the base plate of the sliding seat, which further reduces the width of the track frame.

[0018] 3. In this utility model, the conductive signal circuit board assembly is integrated and installed on the outside of the reducer via double-ended studs. The conductive signal turntable is installed at the end of the output shaft, and magnets and contacts are installed on the conductive signal turntable. When the output shaft rotates, the conductive signal circuit board assembly can maintain electrical connection with the conductive signal turntable and measure the deflection of the magnetic declination, thus avoiding the phenomenon of wires rotating and tangling when the vehicle body rotates. A concave wire take-up groove, wire passage, and wire separator are also provided on the outside of the reducer, which can give way to, collect, and arrange the connecting wires and electrical components of the conductive signal circuit board assembly, thereby improving the structural integration between the reducer and the conductive signal circuit board assembly. Furthermore, a controller support frame for installing the controller is also provided between the reduction motor and the fixed plate, making the overall integration of the balancing mechanism even higher.

[0019] 4. Thanks to the reduction in overall width, the track frame in this utility model can be reinforced with a reinforcing beam on its side, giving it higher structural strength. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the direct-drive active balancing mechanism of this utility model.

[0021] Figure 2 This is a structural diagram of the sliding seat and the reducer.

[0022] Explanation of key figure labels: 100- Track frame, 110- First guide rail, 120- Second guide rail, 130- Side plate, 140- Limit switch, 150- Reinforcing beam; 200 - Fixed plate, 210 - Controller support frame; 300-Sliding seat, 310-Seat plate, 320-Slider, 321-Slot, 330-Connecting plate assembly, 340-Trigger block; 400 - Electric cylinder assembly, 410 - Telescopic cylinder, 420 - Electric cylinder motor; 500 - Reducer, 520 - Output shaft, 530 - First screw hole, 540 - Double-ended stud, 550 - Take-up groove, 560 - Wire passage, 570 - Wire separator; 600 - Rotary connecting plate; 610 - Conductive signal turntable; 620 - Conductive signal circuit board assembly; 700- Geared motor. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0025] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0027] like Figures 1 to 2As shown, the direct-drive active balancing mechanism in this embodiment includes: a track frame 100, a first guide rail 110, a second guide rail 120, a side plate 130, a limit switch 140, a reinforcing beam 150, a fixing plate 200, a controller support frame 210, a sliding seat 300, a seat plate 310, a slider 320, a slot 321, a connecting plate assembly 330, a trigger block 340, an electric cylinder assembly 400, a telescopic cylinder 410, an electric cylinder motor 420, a reducer 500, an output shaft 520, a first screw hole 530, a double-ended stud 540, a take-up groove 550, a wire passage 560, a wire separator 570, a rotating connecting disc 600, a conductive signal turntable 610, a conductive signal circuit board assembly 620, and a reduction motor 700.

[0028] The track frame 100 is a rectangular frame structure. One end of the track frame 100 is fixedly connected to the fixed plate 200. A sliding seat 300 is installed inside the track frame 100. An electric cylinder assembly 400 is installed between the sliding seat 300 and the fixed plate 200. The fixed end of the electric cylinder assembly 400 is connected to the fixed plate 200, and the telescopic end of the electric cylinder assembly 400 is connected to the sliding seat 300. A reducer 500 is installed on the sliding seat 300. An input shaft and an output shaft 520 are installed inside the reducer 500. The input shaft and the output shaft 520 are perpendicular to each other. The axial direction of the input shaft is consistent with the movement direction of the sliding seat 300. Both ends of the output shaft 520 extend outward from the reducer 500 and are respectively equipped with a rotating connecting plate 600 and a conductive signal turntable 610. A worm gear is fitted on the output shaft 520. The middle part of the input shaft is a worm structure that matches the worm gear. A geared motor 70 is installed on the side of the reducer 500 facing the fixed plate 200. 0. The shaft of the geared motor 700 is coaxially connected to the input shaft. The electric cylinder assembly 400 is arranged side by side with the geared motor. The two sides of the track frame 100 are respectively equipped with a first guide rail 110 and a second guide rail 120 that are parallel to each other. The length of the first guide rail 110 is greater than the length of the second guide rail 120. The electric cylinder assembly 400 includes a telescopic cylinder 410 and an electric cylinder motor 420 arranged side by side. The second guide rail 120 is installed on the corresponding side of the electric cylinder assembly 400. The side of the second guide rail 120 extends towards the area between the electric cylinder motor 420 and the other end of the track frame 100. The geared motor 700 has an eccentric shaft structure. The body of the geared motor 700 is offset downward towards the output shaft 520. The telescopic cylinder 410 is located between the geared motor 700 and the electric cylinder motor 420. A controller support frame 210 is also installed in the track frame 100. The controller support frame 210 is located between the geared motor 700 and the fixing plate 200 and is used to install the controller unit.

[0029] It is worth noting that the eccentric shaft structure of the geared motor 700 is a common motor structure in the geared motor 700, and how the input shaft and output shaft 520 form a worm gear transmission mechanism are common knowledge known to those skilled in the art. They will not be described in detail here, and there is no need to show too much about the internal structure of the geared motor 700 and the internal structure of the reducer 500.

[0030] More specifically, the sliding seat 300 consists of a seat plate 310 and a slider 320. The seat plate 310 is parallel to the rotating connecting disk 600. Two sliders 320 are installed on the side of the seat plate 310 corresponding to the first guide rail 110. A connecting plate assembly 330 is installed on the side of the seat plate 310 corresponding to the second guide rail 120. The surface of the connecting plate assembly 330 is perpendicular to the seat plate 310 and has a slider 320 installed on it. The slider 320 has a slot 321, which is perpendicular to the seat plate 310. A side plate 130 is provided on each side of the track frame 100. The side plate 130 is perpendicular to the seat plate 310. The bottoms of the first guide rail 110 and the second guide rail 120 are fixedly connected to the side of the side plate 130 facing the inside of the track frame 100, respectively. The slot 321 engages with the two sides of the first guide rail 110 and the second guide rail 120. The end of the connecting plate assembly 330 is bent upwards towards the side plate 130 and is provided with a trigger block 340. The track frame 100 is provided with two limit switches 140. The two limit switches 140 are spaced apart along the length direction of the second guide rail 120. When the sliding seat 300 moves along the second guide rail 120, the trigger block 340 can trigger the limit switch 140.

[0031] In addition, a reinforcing beam 150 is connected between the fixed plate 200 and the other end of the track frame 100. The reinforcing beam 150 and the track frame 100 are at acute angles to each other, thus forming a triangular reinforcing structure.

[0032] Additionally, a detachable conductive signal circuit board assembly 620 is installed on the outside of the reducer 500. The conductive signal circuit board assembly 620 includes stacked conductive circuit boards and signal detection circuit boards. A conductive signal turntable 610 is located between the conductive circuit boards and the signal detection circuit boards. A magnet and annular contact are mounted on the conductive signal turntable 610. The signal detection circuit board of the conductive signal circuit board assembly 620 is equipped with a magnetic declination sensor that matches the magnet. A copper brush matching the contact is mounted on the conductive circuit board of the conductive signal circuit board assembly 620. When the output shaft rotates, the conductive signal circuit board assembly 620 can maintain electrical connection with the conductive signal turntable 610 and measure the magnetic declination. The deflection of the angle is determined by the fact that the outer housing of the reducer 500 has a first screw hole 530 and an inwardly recessed take-up groove 550. The number of first screw holes 530 is multiple and they are distributed in a ring around the axis of the output shaft 520. A double-ended stud 540 is installed in the first screw hole 530. The conductive signal circuit board assembly 620 is fixedly connected to the end of the double-ended stud 540 by a screw sleeve and a screw. A wire passage 560 is opened on the side of the take-up groove 550. Several wire separators 570 are provided in the take-up groove 550. The connecting wires in the conductive signal circuit board assembly 620 can be accommodated in the take-up groove 550 and separated by the wire separators 570, pass through the wire passage 560 and connect with other electrical components.

[0033] In summary, the direct-drive active balancing mechanism in this embodiment is directly connected to the rotating connecting plate 600 via the output shaft 520 of the reducer 500, realizing direct drive transmission of the reducer 500. This improves transmission efficiency and reduces energy consumption. Furthermore, the geared motor 700 is installed below the reducer 500 and offset below the output shaft 520 of the reducer 500. The first guide rail 110 and the second guide rail 120 of different lengths guide the sliding seat 300. The shorter second guide rail 120 intrudes above the electric cylinder motor 420, making the overall structure more compact in both the horizontal and vertical directions. This provides more installation space for electrical components such as the controller, resulting in a higher level of overall compactness and lightweight design.

[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A direct-drive active balancing mechanism, comprising a track frame, a fixed plate connected to one end of the track frame, a sliding seat installed inside the track frame, and an electric cylinder assembly connected between the sliding seat and the fixed plate, characterized in that: The sliding seat is equipped with a reducer, which contains an input shaft and an output shaft. Both ends of the output shaft extend outwards from the reducer and are respectively fitted with a rotating connecting plate and a conductive signal turntable. A worm gear is fitted onto the output shaft. The middle of the input shaft is a worm structure matching the worm gear. A geared motor is mounted on the side of the reducer facing the fixed plate, and the shaft of the geared motor is coaxially connected to the input shaft. The electric cylinder assembly is arranged side-by-side with the geared motor. The two sides of the track frame are respectively provided with a first guide rail and a second guide rail that are parallel to each other. The length of the first guide rail is greater than the length of the second guide rail. The electric cylinder assembly includes a telescopic cylinder and an electric cylinder motor arranged side-by-side. The side of the second guide rail extends towards the area between the electric cylinder motor and the other end of the track frame.

2. The direct-drive active balancing mechanism according to claim 1, characterized in that, The sliding seat includes a seat plate, which is parallel to the rotating connecting plate. Sliders are provided on both sides of the seat plate, and the sliders have slots that are perpendicular to the seat plate. A side plate is provided on each side of the track frame, and the side plate is perpendicular to the seat plate. The bottom of the first guide rail and the second guide rail are fixedly connected to the side of the side plate facing the inside of the track frame. The slots engage with the sides of the first guide rail and the second guide rail.

3. The direct-drive active balancing mechanism according to claim 2, characterized in that, The number of sliders on the side of the base plate corresponding to the first guide rail is greater than the number of sliders on the side of the base plate corresponding to the second guide rail.

4. The direct-drive active balancing mechanism according to claim 2, characterized in that, A connecting plate assembly is installed on the base plate. The connecting plate assembly moves close to the second guide rail and is fixedly connected to the slider. The end of the connecting plate assembly is bent upwards towards the side plate and is provided with a trigger block. Two limit switches are provided on the track frame. The two limit switches are spaced apart along the length direction of the second guide rail. When the sliding seat moves along the second guide rail, the trigger block can trigger the limit switches.

5. The direct-drive active balancing mechanism according to claim 1, characterized in that, The body of the geared motor is offset downwards from the output shaft, and the telescopic cylinder is located between the geared motor and the electric cylinder motor.

6. The direct-drive active balancing mechanism according to claim 1, characterized in that, The track frame is equipped with a controller support frame, which is located between the reduction motor and the fixed plate.

7. The direct-drive active balancing mechanism according to claim 1, characterized in that, A reinforcing beam is connected between the fixed plate and the other end of the track frame, and the reinforcing beam and the track frame are at acute angles to each other.

8. The direct-drive active balancing mechanism according to claim 1, characterized in that, The reducer is provided with a detachable conductive signal circuit board assembly on its outer side, and the conductive signal turntable is located inside the conductive signal circuit board assembly.

9. The direct-drive active balancing mechanism according to claim 8, characterized in that, The reducer has a first screw hole on its outer side, and a double-ended stud is installed in the first screw hole. The conductive signal circuit board assembly is fixedly connected to the end of the double-ended stud by a nut.

10. The direct-drive active balancing mechanism according to claim 1, characterized in that, The reducer has a take-up groove on its outer side, a wire passage on the side of the take-up groove, and several wire dividers inside the take-up groove.

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