CN215552411U

CN215552411U - Independent suspension structure of mobile chassis

Info

Publication number: CN215552411U
Application number: CN202122258904.2U
Authority: CN
Inventors: 张文学
Original assignee: Weihai Wego Medical Imaging Technology Co ltd
Current assignee: Weihai Wego Medical Imaging Technology Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-01-18
Anticipated expiration: 2031-09-17

Abstract

The utility model provides an independent suspension structure of a movable chassis, which comprises a chassis, trundles and a C-shaped buffer frame, wherein the chassis comprises a plate-shaped chassis framework, the buffer frame comprises an upper plate and a lower plate which are parallel to each other, guide posts vertical to the upper plate and the lower plate are arranged between the upper plate and the lower plate, the chassis framework is arranged between the upper plate and the lower plate in parallel, guide holes matched with the guide posts are arranged on the chassis framework, at least 1 hydraulic buffer is arranged between the chassis framework and the lower plate, and the side surface of the lower plate far away from the upper plate is fixedly connected with a connecting flat plate of the trundles. The damping device has the advantages that due to the adoption of the technical scheme, the damping effect of the movable chassis is good, the structure is simple, and the assembly is convenient.

Description

Independent suspension structure of mobile chassis

Technical Field

The utility model relates to the technical field of machinery, in particular to an independent suspension structure of a mobile chassis.

Background

The movable chassis is used as a motion platform and can bear the functional unit, so that the functional unit can move relative to the ground, and the movable chassis has wide application in the robot fields of floor sweeping robots, meal delivery robots, hotel reception robots, medical disinfection robots and the like. The upside of the movable chassis is connected with the functional unit, the lower side is connected with the movable units such as the trundles or the rails, a suspension structure is usually arranged between the movable chassis and the movable units, the suspension structure is used for buffering impact force brought to the chassis due to uneven road surfaces, vibration caused by the impact force is reduced, particularly in the field of robots moving autonomously, a plurality of high-precision components such as a vision sensor and a laser radar are often loaded on the robots moving autonomously, the devices are sensitive to vibration, severe vibration not only affects the performance of the devices, but also can reduce the service life of the devices, the suspensions serve as connecting pieces between the robots and the movable units, the performances of the suspensions directly affect the stability of the robots, and good suspension structures ensure that the robots do not turn over and stably move.

The suspension structure of the mobile chassis is divided into an independent suspension and a non-independent suspension, the non-independent suspension is lack of a buffer component, and the anti-seismic performance of the chassis is poor. In order to obtain the shock resistance and the buffer capacity, the independent suspension in the prior art has a complex structure, and the volume and the mass of a chassis are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mobile chassis independent suspension structure which is simple in structure, convenient and fast to assemble and good in shock resistance and buffering capacity, and is particularly suitable for being applied to a high-precision robot which autonomously moves.

The technical scheme of the utility model is as follows:

the utility model provides a remove independent suspension structure in chassis, includes the buffering frame of chassis, truckle and C font, the chassis includes platelike chassis skeleton, buffering frame includes upper plate and the hypoplastron that is parallel to each other, is equipped with the guide post of perpendicular to upper plate and hypoplastron between upper plate and the hypoplastron, and chassis skeleton parallel arrangement is between upper plate and hypoplastron, is equipped with on the chassis skeleton with guide post matched with guiding hole, is equipped with between chassis skeleton and the hypoplastron and is no less than 1 hydraulic buffer, the side that the upper plate was kept away from to the hypoplastron links to each other with the connection flat board of truckle is fixed.

The chassis is used for bearing the functional unit, and on the chassis, through fretwork or lay the chassis skeleton that the bar steel sheet formed platelike strip. The chassis framework is accommodated between the upper plate and the lower plate of the C-shaped buffer frame, and the guide posts penetrate through the chassis framework through the guide holes, so that the chassis framework can slide up and down between the upper plate and the lower plate. A hydraulic buffer is arranged between the chassis framework and the lower plate, and a buffer structure is formed between the chassis and the caster wheels, so that the chassis has buffer and anti-seismic performance. Compared with the traditional spring shock absorption, the hydraulic buffer has the advantages of small occupied space and stable operation, and the end part of the hydraulic buffer is threaded, so that the hydraulic buffer is convenient and fast to assemble.

And a damping spring is sleeved on the outer side surface of the guide column between the chassis framework and the lower plate. The damping spring is used for supplementing the hydraulic buffer to improve the maximum buffering capacity of the hydraulic buffer, and can be used for protecting the hydraulic buffer to prevent the hydraulic buffer from being damaged due to vibration exceeding the maximum buffering capacity of the hydraulic buffer.

Specifically, be equipped with on the chassis skeleton with hydraulic buffer matched with screw hole, hydraulic buffer's one end and chassis skeleton screw thread link to each other, hydraulic buffer's the other end offsets with the hypoplastron.

2 guide posts are arranged between the upper plate and the lower plate, 2 hydraulic buffers are arranged between the chassis framework and the lower plate, and connecting lines among the 2 guide holes are perpendicular to connecting lines among the 2 threaded holes on the chassis framework.

The guide posts and the hydraulic buffers are arranged in a crossed mode, so that the up-and-down sliding direction of the chassis framework is more stable, meanwhile, the stress of the 2 hydraulic buffers is uniform, and the shock absorption is more stable.

The guide post is a flange type linear bearing, and a shaft sleeve of the linear bearing is fixedly connected with the base framework. The guide post and the guide hole slide relatively for a long time, and the guide post and the guide hole are abraded, so that the guide post and the guide hole are not matched tightly. Through setting up the guide post into linear bearing, can effectively reduce the wearing and tearing of the two, improve the holistic stability of equipment and life-span.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the movable chassis is good in damping effect, simple in structure and convenient and fast to assemble.

Drawings

FIG. 1 is a schematic structural view of a mobile chassis

FIG. 2 is a schematic diagram of the structural principle of the present invention

FIG. 3 is an exploded view of the present invention

In the figure:

1. base plate 2, truckle 3, buffering frame

4. Guide post 5, hydraulic buffer 6 and damping spring

11. Chassis frame 31, upper plate 32, lower plate

Detailed Description

As shown in fig. 1-3, the present invention:

the utility model provides a remove independent suspension structure in chassis, includes the buffer frame 3 of chassis 1, truckle 2 and C font, chassis 1 includes platelike chassis skeleton 11, buffer frame 3 is including the upper plate 31 and the hypoplastron 32 that are parallel to each other, is equipped with the guide post 4 of perpendicular to upper plate and hypoplastron between upper plate 31 and the hypoplastron 32, and chassis skeleton 11 parallel arrangement is between upper plate 31 and hypoplastron 32, be equipped with on the chassis skeleton 11 with guide post 4 matched with guiding hole, be equipped with between chassis skeleton 11 and the hypoplastron 32 and be no less than 1 hydraulic buffer 5, the side that upper plate 31 was kept away from to the hypoplastron 32 links to each other with the connection flat board of truckle 2 is fixed.

And a damping spring 6 is sleeved on the outer side surface of the guide column between the chassis framework 11 and the lower plate 32.

The chassis framework 11 is provided with a threaded hole matched with the hydraulic buffer 5, one end of the hydraulic buffer 5 is in threaded connection with the chassis framework 11, and the other end of the hydraulic buffer 5 abuts against the lower plate 32.

2 guide posts 4 are arranged between the upper plate 31 and the lower plate 32, 2 hydraulic buffers 5 are arranged between the chassis framework 11 and the lower plate 32, and connecting lines between the 2 guide holes and connecting lines between the 2 threaded holes on the chassis framework 11 are perpendicular to each other.

The guide post 4 is a flange type linear bearing, and a shaft sleeve of the linear bearing is fixedly connected with the base framework.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A movable chassis independent suspension structure is characterized in that: the buffer frame comprises a chassis, trundles and a C-shaped chassis framework, the chassis comprises a plate-shaped chassis framework, the buffer frame comprises an upper plate and a lower plate which are parallel to each other, guide posts perpendicular to the upper plate and the lower plate are arranged between the upper plate and the lower plate, the chassis framework is arranged between the upper plate and the lower plate in parallel, guide holes matched with the guide posts are formed in the chassis framework, at least 1 hydraulic buffer is arranged between the chassis framework and the lower plate, and the side face, far away from the upper plate, of the lower plate is fixedly connected with a connection flat plate of the trundles.

2. The mobile chassis independent suspension structure according to claim 1, characterized in that: and a damping spring is sleeved on the outer side surface of the guide column between the chassis framework and the lower plate.

3. The mobile chassis independent suspension structure according to claim 1, characterized in that: the chassis framework is provided with a threaded hole matched with the hydraulic buffer, one end of the hydraulic buffer is in threaded connection with the chassis framework, and the other end of the hydraulic buffer is abutted to the lower plate.

4. The moving chassis independent suspension structure according to claim 3, wherein: 2 guide posts are arranged between the upper plate and the lower plate, 2 hydraulic buffers are arranged between the chassis framework and the lower plate, and connecting lines among the 2 guide holes are perpendicular to connecting lines among the 2 threaded holes on the chassis framework.

5. The mobile chassis independent suspension structure according to claim 1, characterized in that: the guide post is a flange type linear bearing, and a shaft sleeve of the linear bearing is fixedly connected with the base framework.