A bidirectional track-ground chassis

Abstract

This utility model discloses a bidirectional track-and-ground walking chassis, belonging to the field of chassis technology. It includes a chassis body; a rotating base installed at the center of the chassis body; and at least two drive units, each including a bracket, a driver, a first drive wheel, and a second drive wheel. The bracket is connected to the rotating base via a telescopic push rod, and the driver is mounted on the bracket. The first and second drive wheels are coaxially arranged and driven by the driver, with the diameter of the first drive wheel being smaller than that of the second drive wheel. This utility model enables bidirectional movement with high stability. It reduces the turning radius through lateral movement, simplifies the turning and track-changing path of the bidirectional track-and-ground walking chassis in actual use, improves the chassis's applicability in confined areas, and makes it more suitable for use in ground environments.

Description

Technical Field

[0001] This utility model belongs to the field of chassis technology, and in particular relates to a bidirectional track and ground walking chassis. Background Technology

[0002] With the development of agriculture, the number of greenhouses is increasing, and the demand for indoor transportation is growing. Currently, the rail transport vehicles on the market can no longer meet the transportation needs. The main problems are that the rail transport vehicles have poor maneuverability, large turning radius, and difficulty in adapting to the narrow space inside the greenhouse. In addition, the drive wheels cannot effectively cope with the undulations of the road surface, resulting in poor stability.

[0003] Traditional rail transport trolleys require a large turning area when turning, which seriously affects the space utilization of greenhouses; the drive wheels lack adaptability to the ground. Therefore, a two-way rail-mounted chassis is needed to meet the transportation needs within greenhouses. Utility Model Content

[0004] This utility model overcomes the shortcomings of the prior art by providing a bidirectional track-ground walking chassis to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a bidirectional track-based ground-based chassis, comprising...

[0006] Chassis body;

[0007] A rotating base, which is installed at the center of the chassis body;

[0008] The drive unit comprises at least two sets, each drive unit including a bracket, a driver, a first drive wheel, and a second drive wheel. The bracket is connected to the rotating base via a telescopic push rod. The driver is mounted on the bracket. The first drive wheel and the second drive wheel are coaxially arranged and driven by the driver. The diameter of the first drive wheel is smaller than the diameter of the second drive wheel. The first drive wheel is in contact with the track, and the second drive wheel is in contact with the ground.

[0009] In a preferred embodiment of this utility model, the end of the chassis body is provided with a driven track wheel and a universal wheel, the driven track wheel is in contact with the track, and the universal wheel is in contact with the ground.

[0010] In a preferred embodiment of this utility model, the telescopic push rod is an electric push rod, and the bracket is connected to the rotating base through two sets of the telescopic push rods.

[0011] In a preferred embodiment of the present invention, the bracket includes a fixed plate and a fixed block, the fixed plate is connected to the telescopic push rod, and the fixed block is movably connected to the fixed plate.

[0012] In a preferred embodiment of this utility model, one end of the fixing block is connected to the fixing plate via a rotating pin, and the other end is connected to the fixing plate via a spring.

[0013] In a preferred embodiment of this utility model, the fixing block is provided with an arc-shaped groove, and the fixing block moves along the length direction of the arc-shaped groove.

[0014] In a preferred embodiment of this utility model, both the first drive wheel and the second drive wheel are connected to the driver via a reducer.

[0015] In a preferred embodiment of this utility model, an anti-collision strip is provided at the end of the chassis body.

[0016] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0017] 1. The track-ground bidirectional walking chassis of this utility model can travel in both directions in actual use. It has high stability and can reduce the turning radius by lateral movement. It simplifies the turning and track-changing path of the track-ground bidirectional walking chassis in actual use, improves the applicability of the chassis in narrow areas, and makes it more suitable for use in ground environments.

[0018] 2. The bracket of this utility model forms a contour-following structure, which enables the first drive wheel and the second drive wheel to automatically follow the contours of the terrain, thereby improving the stability of the chassis. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a bottom view of a preferred embodiment of the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of a preferred embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the drive unit in a preferred embodiment of the present invention;

[0024] In the diagram: 10, chassis body; 20, rotating base; 30, drive unit; 31, bracket; 311, fixing plate; 312, fixing block; 3121, arc groove; 32, driver; 33, first drive wheel; 34, second drive wheel; 40, telescopic push rod; 50, driven track wheel; 60, caster wheel; 70, reducer; 80, anti-collision strip; 90, rotating pin; 100, spring. Detailed Implementation

[0025] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0026] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0027] This embodiment provides a track-ground bidirectional walking chassis that can travel in both directions during actual use. It has high stability, can reduce the turning radius by using lateral movement, simplifies the turning and track-changing path of the track-ground bidirectional walking chassis in actual use, improves the chassis's applicability in narrow areas, and makes it more suitable for use in ground environments.

[0028] Combination Figures 1 to 4 As shown, the track-based bidirectional ground-based chassis of this embodiment includes a chassis body 10, a rotating base 20, and a drive unit 30. Both the rotating base 20 and the drive unit 30 are installed below the chassis body 10. The drive unit 30 drives the chassis body 10 to move, while the rotating base 20 can rotate the drive unit 30 to change the driving direction of the drive unit 30, thereby changing the travel direction of the chassis body 10 and realizing bidirectional travel of the chassis body 10.

[0029] In this embodiment, the rotating base 20 is installed at the center of the chassis body 10. The rotating base 20 in this embodiment is equipped with a rotator (not shown in the figure) to drive the rotating base 20 to rotate and change the position of the rotating base 20 relative to the chassis body 10.

[0030] Combination Figure 1 and Figure 3 As shown, in this embodiment, the number of drive units 30 is at least two. Each drive unit 30 includes a bracket 31, a driver 32, a first drive wheel 33, and a second drive wheel 34. The bracket 31 is connected to the rotating base 20 via a telescopic push rod 40. The driver 32 is mounted on the bracket 31. The first drive wheel 33 and the second drive wheel 34 are coaxially arranged and driven by the driver 32. The diameter of the first drive wheel 33 is smaller than the diameter of the second drive wheel 34. The first drive wheel 33 contacts the track, and the second drive wheel 34 contacts the ground. The telescopic push rod... Rod 40 is an electric push rod. The bracket 31 is connected to the rotating base 20 through two sets of telescopic push rods 40. When the chassis body 10 needs to move, the telescopic push rods 40 push out the first drive wheel 33 and the second drive wheel 34. When the chassis body 10 is traveling on a track, the first drive wheel 33 is in contact with the track and moves along the track length direction under the action of the driver 32. When the chassis body 10 is traveling on the ground, the second drive wheel 34 is on the ground, the driver 32 is activated, and the chassis body 10 moves on the ground.

[0031] In this embodiment, both the first drive wheel 33 and the second drive wheel 34 are connected to the driver 32 through the reducer 70. The driver 32 in this embodiment is a motor. The motor and the reducer 70 work together to realize the driving operation of the first drive wheel 33 and the second drive wheel 34.

[0032] Combination Figure 1 and Figure 4 As shown, the bracket 31 in this embodiment includes a fixed plate 311 and a fixed block 312. The fixed plate 311 is connected to the telescopic push rod 40, and the fixed block 312 is movably connected to the fixed plate 311. The driver 32 is mounted on the fixed block 312. In this embodiment, one end of the fixed block 312 is connected to the fixed plate 311 through a rotating pin 90, and the other end is connected to the fixed plate 311 through a spring 100. Therefore, during the movement of the first drive wheel 33 or the second drive wheel 34, one end of the fixed block 312 rotates relative to the fixed plate 311 through the rotating pin 90, while the other end can buffer and dampen relative to the fixed plate 311 under the action of the spring 100.

[0033] In this embodiment, the fixed block 312 is provided with an arc-shaped groove 3121. The fixed block 312 moves along the length direction of the arc-shaped groove 3121, so the fixed block 312 can swing. The first drive wheel 33 or the second drive wheel 34 automatically conforms to the terrain undulations, changing the six-point support to four-point support when the chassis is walking, thereby improving the stability of the chassis.

[0034] Combination Figure 1 and Figure 2 As shown, the chassis body 10 of this embodiment is provided with a driven track wheel 50 and a universal wheel 60 at its end. The driven track wheel 50 contacts the track, and the universal wheel 60 contacts the ground. The driven track wheel 50 is provided with a contour groove 51 to fit the track. The chassis body 10 is provided with a crash bar 80 at its end. The driven track wheel 50 can cooperate with the first drive wheel 33 to fit stably with the track, while the universal wheel 60 can cooperate with the second drive wheel 34 to improve the movement stability of the chassis body 10. The crash bar 80 can play a crash protection role for the chassis body 10.

[0035] In actual use, the chassis of this embodiment has two operating environments: one is traveling on a track, and the other is traveling on the ground.

[0036] When moving on the track: the first drive wheel 33 is in contact with the track, the second drive wheel 34 is in an idle state, and the driver 32 drives the first drive wheel 33, so that the chassis body 10 moves along the length of the track.

[0037] When walking on the ground: the second drive wheel 34 is on the ground, the first drive wheel 33 is in an idle state, and the driver 32 drives the second drive wheel 34, so that the chassis body 10 moves on the ground.

[0038] When the chassis body 10 moves on the ground, there are three modes of movement:

[0039] 1. Bidirectional movement: The chassis body 10 moves horizontally. When it is necessary to change the direction of movement of the chassis body 10, the telescopic push rod 40 lifts the second drive wheel 34 off the ground. Then, the rotating base 20 drives the drive unit 30 to rotate 90 degrees. The telescopic push rod 40 then drives the second drive wheel 34 to contact the ground again, thereby changing the horizontal orientation of the drive unit 30 to the vertical orientation. The drive unit 30 and the chassis body 10 are in a horizontal or vertical orientation, thus realizing the horizontal or vertical movement of the chassis body 10, forming the bidirectional movement of the chassis body 10.

[0040] 2. Turning in place: One drive unit 30 and another drive unit 30 move in opposite straight lines with equal speeds, thereby turning the chassis body 10 to the origin.

[0041] 3. Differential steering: The two sets of drive units 30 face the same direction, and the speed of one set of drive units 30 is higher than that of the other set of drive units 30, so as to realize the differential steering movement of the chassis body 10.

[0042] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0043] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0044] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0045] In summary, the above detailed description is intended to be exemplary rather than limiting, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A rail-ground two-way walking chassis, characterized in that, include Chassis body (10); A rotating base (20) is installed at the center of the chassis body (10); The number of drive units (30) is at least two. Each drive unit (30) includes a bracket (31), a driver (32), a first drive wheel (33), and a second drive wheel (34). The bracket (31) is connected to the rotating base (20) via a telescopic push rod (40). The driver (32) is mounted on the bracket (31). The first drive wheel (33) and the second drive wheel (34) are coaxially arranged and driven by the driver (32). The diameter of the first drive wheel (33) is smaller than that of the second drive wheel (34). The first drive wheel (33) is in contact with the track, and the second drive wheel (34) is in contact with the ground.

2. The rail-ground bidirectional walking chassis according to claim 1, characterized in that, The chassis body (10) is provided with a driven track wheel (50) and a universal wheel (60) at its end. The driven track wheel (50) is in contact with the track, and the universal wheel (60) is in contact with the ground.

3. The rail-ground two-way walking chassis according to claim 1, characterized in that, The telescopic push rod (40) is an electric push rod, and the bracket (31) is connected to the rotating base (20) through two sets of the telescopic push rods (40).

4. The rail-ground two-way walking chassis according to claim 1, characterized in that, The bracket (31) includes a fixing plate (311) and a fixing block (312). The fixing plate (311) is connected to the telescopic push rod (40), and the fixing block (312) is movably connected to the fixing plate (311).

5. The rail-ground two-way walking chassis according to claim 4, characterized in that, One end of the fixing block (312) is connected to the fixing plate (311) via a rotating pin (90), and the other end is connected to the fixing plate (311) via a spring (100).

6. A track-based bidirectional ground-based chassis according to claim 5, characterized in that, The fixing block (312) is provided with an arc-shaped groove (3121), and the fixing block (312) moves along the length direction of the arc-shaped groove (3121).

7. A track-based bidirectional ground-based chassis according to claim 1, characterized in that, The first drive wheel (33) and the second drive wheel (34) are both connected to the driver (32) via a reducer (70).

8. The track-based bidirectional ground-based chassis according to claim 1, characterized in that, The chassis body (10) is provided with anti-collision strips (80) at its end.

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