CN113043804A

CN113043804A - Drive structure of food and beverage transport vehicle chassis

Info

Publication number: CN113043804A
Application number: CN202110520128.0A
Authority: CN
Inventors: 李玉平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-06-29
Anticipated expiration: 2041-05-13
Also published as: CN113043804B

Abstract

The invention discloses a driving structure of a chassis of a catering conveyor, which comprises a bottom plate, a driving wheel, a supporting plate and a driving wheel, wherein the supporting plate is fixedly connected with the bottom plate through a hinge group; one end of the supporting plate is connected with the spring, the other end of the spring is connected with a spring fixing point, and the spring fixing point is connected with the bottom plate. The invention has the advantages that: a drive wheel aperture of sufficient length in which a carriage containing the drive wheel slides up and down and back and forth; a parallelogram hinge group connects the support plate fixed with the bracket with the bottom plate, so that the driving wheel can move up and down and back and forth in the driving wheel hole, and a spring tightens the support plate to enable the support plate to be in a position which is movable upwards and downwards; the driving wheel has large up-down adjustment range, simple structure and low cost, and meets the specific requirements of the site.

Description

Drive structure of food and beverage transport vehicle chassis

Technical Field

The invention relates to a catering conveying vehicle, in particular to a chassis of the catering conveying vehicle, and particularly relates to a driving structure of the chassis of the catering conveying vehicle.

Background

In the prior art, the technical scheme of patent application No. 202011625244.0, named as "a mobile robot and a walking mechanism thereof" is that the driving structure of the chassis of the Chinese food and beverage conveying vehicle is a newer scheme: "a traveling mechanism of a mobile robot, comprising: the device comprises a base plate, two driving wheels, two driving wheel suspension assemblies, a connecting frame and at least one driven wheel; the two driving wheel suspension assemblies and the driven wheel are arranged on the bottom plate; the action wheel suspension assembly includes: the damping device comprises a fixed seat, a swing arm, a damping component and a connecting piece; the fixing seat is fixed on the bottom plate, the swing arm is hinged on the fixing seat, the damping assembly is connected between the swing arm and the connecting piece, and the driving wheel is installed on the swing arm; the connecting piece is used for being fixedly connected with the mobile robot main body; the link is connected on the swing arm of two action wheel suspension assemblies ".

As can be seen from reading the description in conjunction with fig. 1 of this patent application, the two drive wheels have been fixed together by the connecting frame, and when the drive wheel on one side is lifted by an obstacle, the drive wheel on the other side is lifted regardless of whether there is an obstacle under the wheel.

Patent application No. 201621055868.2, the name is "prevent unsettled removal food delivery robot chassis suspension of drive wheel" among the technical scheme drive wheel and follow driving wheel in a suspension, there are four round pins altogether of first ~ fourth in this system, the length of side of two round pins above is longer, and two round pin axle length of side below is shorter, not parallelogram. This results in that the amplitude of the compression deformation of the parallelogram is not large enough, because only when the parallelogram is compressed, the upper and lower sides can be overlapped, that is, the distance of relative movement between the upper and lower sides is the largest, which is desirable.

Although the ground of the running environment of the catering transport vehicle is flat, the drive wheel still needs to be bounced down or up when the drive wheel is in the lump, the drive wheel can be held on the ground as much as possible, the transport vehicle cannot have a large deflection phenomenon, and the transport vehicle is small in deflection and can be corrected by a navigation control system.

The drive wheel is matched with a bracket, and a chassis suspension system for preventing the drive wheel from being suspended is not designed according to the bracket in the prior art.

To achieve the object of the invention, an innovative design is required.

Disclosure of Invention

The invention aims to solve the problem that a chassis suspension system for preventing a driving wheel from being suspended in the air is not designed according to a bracket in the prior art.

The drive structure of the chassis of the catering conveyor has the advantages of large vertical adjustment range of the drive wheel, simple structure and low cost, and meets the specific requirements on the site.

The invention is realized by the following steps: design and manufacturing a drive structure of a catering truck chassis, comprising:

the bottom plate is provided with a driving wheel hole, a support of a driving wheel is arranged in the bottom plate, the support is fixedly connected with a support plate, and the support plate is connected with the bottom plate through a hinge group; one end of the supporting plate is connected with the spring, the other end of the spring is connected with a spring fixing point, and the spring fixing point is connected with the bottom plate.

The hinge group comprises a shaft one hinge, a shaft two hinge, a shaft three hinge and a shaft four hinge which are arranged in a parallelogram shape.

The bottom plate is provided with two universal wheels which are arranged at the rearmost side of the bottom plate.

The spring fixing point is connected with the spring through the tensioning adjusting piece.

Alternatively, the spring fixing point directly fixes the spring hook.

The hinge group comprises a front folded plate and a rear folded plate, and the front folded plate is connected with a first hinge and a second hinge; the rear folded plate is connected with the shaft three hinge and the shaft four hinge, and the support plate connected with the shaft two hinge and the shaft three hinge is correspondingly arranged above the driving wheel hole.

The first shaft is connected with the bottom plate through the front mounting plate or the fixed part of the first shaft hinge is directly connected with the bottom plate; the shaft four-hinge is connected with the bottom plate through the rear mounting plate or the fixed part of the shaft four-hinge is directly connected with the bottom plate.

The tensioning adjusting piece comprises a spring pulling plate, the spring pulling plate is provided with a plurality of fixing holes and used for locking spring fixing points, one hole is locked at a time, and the tension of the spring is adjusted.

The tensioning adjusting piece can also use a rotary tensioning hook, one end of the rotary tensioning hook is connected with the spring hook, the other end of the rotary tensioning hook is connected with the fixed point of the spring, and the directions of the threads on the hooks on the two sides are opposite.

The driving wheel is a hub motor, and the diameter of the driving wheel is 70% -80% of the length of the driving wheel hole.

The invention has the advantages that: a drive wheel aperture of sufficient length in which a carriage containing the drive wheel slides up and down and back and forth; a parallelogram hinge group connects the support plate fixed with the bracket with the bottom plate, so that the driving wheel can move up and down and back and forth in the driving wheel hole, and a spring tightens the support plate to enable the support plate to be in a position which is movable upwards and downwards; the driving wheel has large up-down adjustment range, simple structure and low cost, and meets the specific requirements of the site.

Drawings

FIG. 1 is a side structural schematic view of a driving structure of a chassis of a catering conveyor vehicle;

FIG. 2 is a perspective view of the driving structure of the chassis of the catering truck of the invention, wherein the embodiment of the tensioning adjusting part shown in the drawing is a spring pulling plate;

fig. 3 is another side structure diagram of the drive structure of the catering transport vehicle chassis, and the tensioning adjusting part is a rotary tensioning hook in the embodiment shown in the drawing.

Detailed Description

The present invention is described in further detail below with reference to examples one and two.

Referring to fig. 1 to 3, a driving structure for designing and manufacturing a chassis of a catering truck comprises:

the bottom plate 1 is provided with a driving wheel hole 11, a bracket 21 of the driving wheel 2 is arranged in the bottom plate, the bracket 21 is fixedly connected with a support plate 3, and the support plate 3 is connected with the bottom plate 1 through a hinge group 4; one end of the supporting plate 3 is connected with a spring 5, the other end of the spring 5 is connected with a spring fixing point 51, and the spring fixing point 51 is connected with the bottom plate 1.

The hinge group 4 comprises a shaft-one hinge 41, a shaft-two hinge 42, a shaft-three hinge 43 and a shaft-four hinge 44 which are arranged in a parallelogram shape, so that the support plate 3 is always parallel to the bottom plate 1.

The bottom plate 1 is provided with two universal wheels 6 which are arranged at the rearmost side of the bottom plate 1.

The spring fastening point 51 is connected to the spring 5 via a tensioning adjustment element.

The spring attachment point 51 directly attaches the spring hanger 55.

The hinge group 4 comprises a front flap 48 and a rear flap 49, and the front flap 48 is connected with a first shaft hinge 41 and a second shaft hinge 42; the rear flap 49 is connected to the axle three-hinge 43 and the axle four-hinge 44, and the support plate 3 connected to the axle two-hinge 42 and the axle three-hinge 43 is positioned above the driving wheel hole 11.

The first shaft 41 is connected with the bottom plate 1 through the front mounting plate 45 or the fixed part of a first shaft hinge is directly connected with the bottom plate 1; the four-axis hinge 44 is connected to the base plate 1 through a rear mounting plate 46 or a fixed portion of the four-axis hinge is directly connected to the base plate 1.

As shown in fig. 2, in the first embodiment, the tension adjusting member includes a spring pulling plate 510, and the spring pulling plate 510 is provided with a plurality of fixing holes 511 for locking the spring fixing points 51, one hole at a time, and adjusting the tension of the spring.

In the second embodiment, as shown in fig. 3, the tension adjusting member comprises a rotating tension hook 52, one end of the rotating tension hook 52 is connected with a spring hook 55, the other end is connected with a spring fixing point 51, the thread directions of the hooks are opposite, a round bar is inserted into a round hole in the middle of the rotating tension hook body, and the round bar is rotated to adjust the tension of the spring.

The driving wheel 2 is a hub motor, and the diameter of the driving wheel 2 is 70% -80% of the length of the driving wheel hole 11, so that the driving wheel has enough space.

As shown in fig. 1 and 3, the hinge mounting bolt 47 is used to secure the hinge.

The bottom plate 1 is provided with a battery pack and a driving wheel circuit board for providing power and control for the driving wheel.

The above description is only a preferred embodiment of the present invention, and the present invention should not be limited by the above description, which should be interpreted as limiting the scope of the present invention, since the person skilled in the art can change the invention in the details of the embodiment and the range of applications according to the spirit of the present invention.

Claims

1. A driving structure of a chassis of a catering transport vehicle is characterized by comprising a chassis body,

the bottom plate (1) is provided with a driving wheel hole (11), a bracket (21) of the driving wheel (2) is arranged in the bottom plate, the bracket (21) is fixedly connected with the supporting plate (3), and the supporting plate (3) is connected with the bottom plate (1) through a hinge group (4); one end of the supporting plate (3) is connected with the spring (5), the other end of the spring (5) is connected with the spring fixing point (51), and the spring fixing point (51) is connected with the bottom plate (1).

2. The drive structure of the dining conveying vehicle chassis as claimed in claim 1, wherein: the hinge group (4) comprises a first shaft hinge (41), a second shaft hinge (42), a third shaft hinge (43) and a fourth shaft hinge (44) which are arranged in a parallelogram shape.

3. The drive structure of the dining conveying vehicle chassis as claimed in claim 1, wherein: the bottom plate (1) is provided with two universal wheels (6) which are arranged at the rearmost side of the bottom plate (1).

4. The drive structure of the dining conveying vehicle chassis as claimed in claim 1, wherein: the spring fastening point (51) is connected to the spring (5) via a tensioning adjustment element.

5. The drive structure of the chassis of the catering truck as claimed in claim 1, wherein the spring fixing point (51) directly fixes the spring hook (55).

6. The drive structure of the dining conveying vehicle chassis as claimed in claim 1, wherein: the hinge group (4) comprises a front folding plate (48) and a rear folding plate (49), and the front folding plate (48) is connected with a first shaft hinge (41) and a second shaft hinge (42); the rear folded plate (49) is connected with a shaft three hinge (43) and a shaft four hinge (44), and the support plate (3) connected with the shaft two hinge (42) and the shaft three hinge (43) is correspondingly arranged above the driving wheel hole (11).

7. The drive structure of the dining conveying vehicle chassis as claimed in claim 6, wherein: the first shaft (41) is connected with the bottom plate (1) through the front mounting plate (45) or the fixed part of the first shaft hinge is directly connected with the bottom plate (1); the four-shaft hinge (44) is connected with the bottom plate (1) through the rear mounting plate (46) or the fixing part of the four-shaft hinge is directly connected with the bottom plate (1).

8. The drive structure of the dining conveying vehicle chassis as claimed in claim 4, wherein: the tension adjusting member includes a spring pulling plate (510), and the spring pulling plate (510) is provided with a plurality of fixing holes (511) for locking spring fixing points (51).

9. The drive structure of the dining conveying vehicle chassis as claimed in claim 4, wherein: the tensioning adjusting piece comprises a rotary tensioning hook (52), one end of the rotary tensioning hook (52) is connected with a spring hook (55), and the other end of the rotary tensioning hook is connected with a spring fixing point (51).

10. The drive structure of the dining conveying vehicle chassis as claimed in claim 1, wherein: the driving wheel (2) is a hub motor, and the diameter of the driving wheel (2) is 70% -80% of the length of the driving wheel hole (11).