Six-wheel-disc chassis mechanism

Abstract

The utility model discloses a six-wheel-disc chassis mechanism which comprises an aluminum profile frame, and the inner walls of the two sides of the aluminum profile frame are jointly provided with a carrying base. Driving wheel sets are installed on the two sides of the aluminum profile frame correspondingly, and universal wheel sets connected with the aluminum profile frame are arranged on the two sides of the two driving wheel sets correspondingly. The double-drive six-wheel train is adopted, motor power consumption can be greatly reduced, two driving wheel sets are arranged in the middles of the two sides of the chassis and control the moving direction and the advancing speed of the chassis, the other four universal wheel sets are driven wheels, and each driven wheel is provided with an unfolding and damping system. In the working state, the two driving wheels are slightly higher than the driven wheels, the four driven wheels are provided with independent suspension damping, the four wheels are compressed under the action of gravity, and it can be guaranteed that six wheels land simultaneously when moving in the blank house ground environment with small gravel.

Description

Technical Field

[0001] This utility model relates to the field of chassis technology, and in particular to a six-wheel chassis mechanism. Background Technology

[0002] Currently, many problems exist in the renovation process. Many tools and items used in renovation require manual transport. Small trolleys, typically fitted to the dimensions of a house's front door, are usually equipped with four swivel wheels, requiring manual operation by workers, which is time-consuming and labor-intensive. Furthermore, many stages of the renovation process suffer from low automation, significant pollution, high labor costs, and low efficiency. Investigations have revealed that wall grooving currently lacks automated equipment; instead, workers use small grooving machines. This process is time-consuming, detrimental to worker health, and extremely strenuous. Other stages of renovation, such as wall painting, wall grooving, plumbing and electrical wiring, wall tiling, and wall grouting, urgently require automated equipment. The chassis necessary for moving the equipment perfectly matches the design of this machine. Utility Model Content

[0003] This utility model is a six-wheel chassis mechanism proposed to overcome the shortcomings of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a six-wheel chassis mechanism, including an aluminum profile frame, wherein a mounting base is installed on both inner walls of the aluminum profile frame;

[0005] Both sides of the aluminum profile frame are equipped with drive wheel sets, and both sides of the two drive wheel sets are provided with universal wheel sets connected to the aluminum profile frame.

[0006] Both of the aforementioned drive wheel sets include two support plates, and the support plates are fixedly connected to the aluminum profile frame. A fixed seat is fixedly connected to one side of the outer surface of each support plate. A motor is fixedly installed on the inner surface of the fixed seat. A motor output shaft is fixedly connected to the drive end of the motor. A clamping coupling is fixedly connected to the outer surface of the motor output shaft. A wheel assembly is fixedly connected to one end of the clamping coupling.

[0007] Each of the four omnidirectional wheel sets includes an optical shaft, and two connecting seats are symmetrically fixedly sleeved on the outer surface of the optical shaft. A single connecting seat at the bottom is fixedly connected to an aluminum profile frame. A spring is sleeved on the outer surface of the optical shaft, and the bottom of the spring abuts against a rotating shaft sleeved on the outer surface of the optical shaft. A bracket is fixedly connected to the bottom of the rotating shaft, and a connecting plate is fixedly connected to the bottom of the bracket. A sheet metal wheel frame is rotatably connected to the bottom of the connecting plate, and a wheel is rotatably sleeved on the bolt surface of the sheet metal wheel frame. Two guide posts are fixedly connected between two of the connecting seats, and each of the two guide posts is slidably connected to a limit stop.

[0008] Furthermore, the mounting base includes four corner brackets, which are fixedly installed on the inner wall of the aluminum profile frame, and the bottom of the four corner brackets are jointly fixedly connected to a base plate.

[0009] Furthermore, the motor is selected as a planetary gear reducer motor.

[0010] Furthermore, the wheel assembly includes two wheel body fixing plates, and a clamping coupling is fixedly connected to the adjacent wheel body fixing plates. The outer surfaces of the two wheel body fixing plates are jointly fitted with rubber.

[0011] Furthermore, the two wheel mounting plates are fixedly connected by multiple connecting bolts.

[0012] Furthermore, both of the aforementioned limiting blocks include a block outer frame, and the block outer frame is slidably sleeved on the outer surface of the guide post. One side of the outer surface of the block outer frame is provided with a cross-head countersunk bolt that extends into the interior, and the outer surface of the cross-head countersunk bolt is provided with a retaining groove.

[0013] Furthermore, a torsion spring is fitted on the outer surface of the countersunk head bolt, and one end of the torsion spring is fixedly connected to the slot buckle, while the other end of the torsion spring is fixedly connected to the outer frame of the stop block.

[0014] The beneficial effects of this utility model are:

[0015] In use, this utility model employs a six-wheel chassis mechanism with dual-drive, six-wheel drive, which significantly reduces motor power consumption. Two drive wheels are positioned in the middle of both sides of the chassis, controlling its direction of movement and speed. The remaining four omnidirectional wheels are driven wheels, each equipped with an unfolding and shock-absorbing system, allowing them to retract and reduce the machine's size. During operation, the two drive wheels are slightly higher than the driven wheels, and the four driven wheels are independently suspended for shock absorption. Under gravity, the four wheels compress, ensuring all six wheels maintain contact with the ground simultaneously, even on rough, gravelly surfaces. Furthermore, using omnidirectional wheels as driven wheels allows for rapid response to changes in the drive wheels, facilitating quicker adjustments to the chassis. This chassis maintains vehicle stability while providing some terrain flexibility, enabling it to perform common chassis movement tasks and is suitable for applications in various fields, including home renovation. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

[0017] Figure 1 : A perspective view of this utility model;

[0018] Figure 2 : A three-dimensional view of the universal wheel assembly of this utility model;

[0019] Figure 3 Partial perspective view of the universal wheel assembly of this utility model;

[0020] Figure 4 Side view of the drive wheel assembly of this utility model;

[0021] Figure 5 : A partial bottom view of the drive wheel assembly of this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Aluminum profile frame; 2. Angle bracket; 3. Base plate; 4. Drive wheel assembly; 41. Support plate; 42. Wheel body fixing plate; 43. Motor output shaft; 44. Clamping coupling; 45. Rubber sheet; 46. Motor; 47. Fixing seat; 48. Connecting bolt; 5. Universal wheel assembly; 51. Connecting seat; 52. Optical shaft; 53. Guide column; 54. Spring; 55. Rotating shaft; 56. Bracket; 57. Connecting plate; 58. Sheet metal wheel frame; 59. Wheel; 510. Slot buckle; 511. Cross countersunk bolt; 512. Stop block outer frame. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown, the six-wheel chassis mechanism includes an aluminum profile frame 1. A mounting base is installed on both inner walls of the aluminum profile frame 1. The mounting base includes four corner brackets 2, which are fixedly installed on the inner walls of the aluminum profile frame 1. A base plate 3 is fixedly connected to the bottom of the four corner brackets 2. The aluminum profile serves as the frame, and the matching corner brackets 2 act as connecting parts. A single base plate 3 is placed in the center of the chassis to support the upper structure, such as a grooving machine. The aluminum profile and corner brackets 2 have good load-bearing capacity and are standard parts. Some parts have been hollowed out to reduce the overall weight of the structure and lower costs.

[0026] Both sides of the aluminum profile frame 1 are equipped with drive wheel sets 4, and both sides of the two drive wheel sets 4 are equipped with universal wheel sets 5 connected to the aluminum profile frame 1.

[0027] Each of the two drive wheel sets 4 includes two support plates 41, which are fixedly connected to the aluminum profile frame 1 to support the overall wheel set. A mounting base 47 is fixedly connected to one side of the outer surface of each support plate 41. The mounting base 47 is fixed to the support plate 41 with hexagonal bolts for easy assembly and disassembly. A motor 46 is fixedly mounted on the inner surface of the mounting base 47. The motor 46 is a planetary gear reducer motor. A motor output shaft 43 is fixedly connected to the drive end of the motor 46. A clamping coupling 44 is fixedly connected to the outer surface of the motor output shaft 43. A wheel assembly is fixedly connected to one end of the clamping coupling 44. It includes two wheel fixing plates 42, which are connected to the adjacent support plate 41 by bearings. One side of the inner ring of the bearing is fixed to the wheel fixing plate 42, and one side of the outer ring of the bearing is fixed to the support plate 41. A clamping coupling 44 is fixedly connected to the adjacent wheel fixing plate 42. The clamping coupling 44 is fixed to the wheel fixing plate 42 by hexagonal screws. The outer surfaces of the two wheel fixing plates 42 are jointly fitted with rubber 45. The two wheel fixing plates 42 are fixedly connected by multiple connecting bolts 48. The two wheel fixing plates 42 and the connecting bolts 48 cooperate to form a hollow design to reduce the overall weight.

[0028] For the design of the drive wheel, an embedded motor 46 is used in the middle, and bearings for load-bearing are placed at both ends of the wheel assembly. Axial fixation is achieved using existing snap ring components to prevent external radial forces acting directly on the output shaft of the motor 46, thus avoiding damage to the motor 46 and reducing frictional losses during rotation. The drive wheel assembly 4 utilizes a clamping coupling 44 to effectively transmit the torque output by the motor 46. The hub of the drive wheel is made detachable for easy connection and removal from the rim. The outer rim of the wheel assembly is wrapped with rubber 45, reducing manufacturing costs. Compared to polyurethane coating, this method is easier to replace. In indoor environments, wheels are frequently subjected to various types of wear; therefore, holes are drilled in the rubber 45, and countersunk bolts are used to connect it to the rim of the wheel mounting plate 42, facilitating the replacement and maintenance of the outer rim rubber 45.

[0029] Each of the four omnidirectional wheel sets 5 includes an optical shaft 52, and two connecting seats 51 are symmetrically fixedly sleeved on the outer surface of the optical shaft 52. A single connecting seat 51 at the bottom is fixedly connected to the aluminum profile frame 1. A spring 54 is sleeved on the outer surface of the optical shaft 52. The bottom of the spring 54 abuts against a rotating shaft 55 sleeved on the outer surface of the optical shaft 52. A bracket 56 is fixedly connected to the bottom of the rotating shaft 55. A connecting plate 57 is fixedly connected to the bottom of the bracket 56. A sheet metal wheel frame 58 is rotatably connected to the bottom of the connecting plate 57. A tapered roller bearing is used to connect the connecting plate 57 and the sheet metal wheel frame 58 to bear axial force and also to act as a bearing for rudder rotation, ensuring the normal rotation of the omnidirectional wheel set 5. A wheel 59 is rotatably sleeved on the bolt surface of the sheet metal wheel frame 58. The wheel 59 and... The bolts are connected by deep groove ball bearings to withstand the radial force on the wheel 59 when it rolls, ensuring the normal use of the omnidirectional wheel assembly 5. Two guide posts 53 are fixedly connected between the two connecting seats 51. Both guide posts 53 are slidably connected to limit blocks. Both limit blocks include a block outer frame 512, and the block outer frame 512 is slidably sleeved on the outer surface of the guide post 53. One side of the outer surface of the block outer frame 512 is provided with a cross-head countersunk bolt 511 that penetrates into the interior. The outer surface of the cross-head countersunk bolt 511 is fitted with a retaining groove 510. The outer surface of the cross-head countersunk bolt 511 is fitted with a torsion spring, and one end of the torsion spring is fixedly connected to the retaining groove 510, and the other end of the torsion spring is fixedly connected to the block outer frame 512.

[0030] The chassis measures approximately 600mm x 400mm when retracted and approximately 600mm x 650mm when extended, ensuring it can pass through a doorway when retracted and maintaining stability during movement when extended. In both states, the wheel assembly mechanism of the driven wheels is limited. Considering that the spring 54 on the wheel assembly will compress to some extent during chassis movement, and that the two limit blocks and the rotating shaft 55 will move slightly up and down with the wheel assembly, the limit blocks are slidably fitted onto a guide post 53. The guide post 53 only limits the limit blocks in the horizontal direction. The diameter of the limit block's hole is slightly larger than the outer diameter of the guide post 53, allowing it to move vertically. The specific limiting method of the limiting block is to add a torsion spring at the tail of the outer frame 512 of the block. When the rotating shaft 55 in the wheel set enters the limiting space formed by the slot buckle 510 and the outer frame 512 of the block, this part can only apply a horizontal force to the limiting block. Only a vertical force can make the torsion spring rotate and move the slot buckle 510 away, thus ensuring the limiting effect.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A six-wheel chassis mechanism, comprising an aluminum profile frame (1), characterized in that: The aluminum profile frame (1) has mounting bases installed on both inner walls of its two sides; Both sides of the aluminum profile frame (1) are equipped with drive wheel sets (4), and both sides of the two drive wheel sets (4) are provided with universal wheel sets (5) connected to the aluminum profile frame (1). Both of the driving wheel sets (4) include two support plates (41), and the support plates (41) are fixedly connected to the aluminum profile frame (1). A fixed seat (47) is fixedly connected to one side of the outer surface of each support plate (41). A motor (46) is fixedly installed on the inner surface of the fixed seat (47). A motor output shaft (43) is fixedly connected to the drive end of the motor (46). A clamping coupling (44) is fixedly connected to the outer surface of the motor output shaft (43). A wheel assembly is fixedly connected to one end of the clamping coupling (44). Each of the four universal wheel sets (5) includes an optical shaft (52), and two connecting seats (51) are symmetrically fixedly sleeved on the outer surface of the optical shaft (52). The bottom single connecting seat (51) is fixedly connected to the aluminum profile frame (1). A spring (54) is sleeved on the outer surface of the optical shaft (52). The bottom of the spring (54) abuts against a rotating shaft (55) sleeved on the outer surface of the optical shaft (52). A bracket (56) is fixedly connected to the bottom of the rotating shaft (55). A connecting plate (57) is fixedly connected to the bottom of the bracket (56). A sheet metal wheel frame (58) is rotatably connected to the bottom of the connecting plate (57). A wheel (59) is rotatably sleeved on the bolt surface of the sheet metal wheel frame (58). Two guide posts (53) are fixedly connected between the two connecting seats (51). Both guide posts (53) are slidably connected to limit stops.

2. The six-wheeled chassis mechanism according to claim 1, characterized in that: The mounting base includes four corner brackets (2), and the corner brackets (2) are fixedly installed on the inner wall of the aluminum profile frame (1). The bottom of the four corner brackets (2) are fixedly connected to a base plate (3).

3. The six-wheeled chassis mechanism according to claim 1, characterized in that: The motor (46) is a planetary gear reducer motor.

4. The six-wheeled chassis mechanism according to claim 1, characterized in that: The wheel assembly includes two wheel body fixing plates (42), and a clamping coupling (44) is fixedly connected to the adjacent wheel body fixing plate (42). The outer surfaces of the two wheel body fixing plates (42) are jointly fitted with rubber (45).

5. The six-wheeled chassis mechanism according to claim 4, characterized in that: The two wheel mounting plates (42) are fixedly connected by a plurality of connecting bolts (48).

6. The six-wheeled chassis mechanism according to claim 1, characterized in that: Both of the aforementioned limiting blocks include a block outer frame (512), and the block outer frame (512) is slidably sleeved on the outer surface of the guide post (53). A cross countersunk bolt (511) penetrating to the interior is provided on one side of the outer surface of the block outer frame (512), and a slot buckle (510) is sleeved on the outer surface of the cross countersunk bolt (511).

7. The six-wheeled chassis mechanism according to claim 6, characterized in that: The outer surface of the countersunk head bolt (511) is fitted with a torsion spring, one end of which is fixedly connected to the slot buckle (510), and the other end of which is fixedly connected to the outer frame of the stop block (512).

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