Engineering composite robot chassis

Abstract

The utility model discloses an engineering composite robot chassis which comprises a main frame, an auxiliary frame installed on one side of the main frame through a hinge shaft and two electric stop rods used for stopping the auxiliary frame, two front steering wheels are installed below the main frame, and two rear steering wheels are installed below the auxiliary frame. A damping spring and a polyurethane buffer block are installed between the first fixing plate and the second fixing plate which correspond to each other. The engineering composite robot chassis is simple in structure, when the engineering composite robot chassis walks on the ground with complex working conditions, the auxiliary frame can swing in a self-adaptive mode around the hinge shaft, the ground self-adaptability of the front steering wheel and the rear steering wheel can be improved, the phenomenon that the front steering wheel or the rear steering wheel is suspended can be avoided, and the engineering composite robot chassis is convenient to use. By arranging the two electric stop rods symmetrically arranged on the two sides of the auxiliary frame, the auxiliary frame can be stopped conveniently, and when the engineering composite robot chassis is in a static state, the safety of equipment installed on the engineering composite robot chassis can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheeled mobile robots, and in particular relates to an engineering composite robot chassis. Background Art

[0002] With the expansion of the application of engineering composite robots in the fields of building decoration, off-site construction, etc., the chassis of the existing engineering composite robots cannot adapt well to the ground with complex working conditions. When the steering wheel of the engineering composite robot contacts the ground, it is easy to cause the steering wheel to be suspended in the air, resulting in insufficient grip of the steering wheel and the problem of steering wheel slipping. As a result, the engineering composite robot is prone to shaking during movement, and has poor stability, which makes the engineering composite robot prone to rollover. Therefore, an engineering composite robot chassis with excellent adaptability should be provided. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an engineering composite robot chassis in view of the deficiencies in the above-mentioned prior art, which has a simple structure and a reasonable design. When the engineering composite robot chassis walks on a ground with complex working conditions, the sub-frame can produce an adaptive swing around the hinge axis, which can improve the ground adaptability of the front steering wheel and the rear steering wheel, and can avoid the phenomenon that the front steering wheel or the rear steering wheel is suspended. By arranging two electric stop rods symmetrically arranged on both sides of the sub-frame, it is convenient to stop the sub-frame. When the engineering composite robot chassis is in a stationary state, the safety of the equipment installed on the engineering composite robot chassis can be guaranteed.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an engineering composite robot chassis, characterized in that it includes a main frame, a sub-frame installed on one side of the main frame through an articulated shaft and located below the main frame, and two electric stop rods symmetrically arranged on both sides of the sub-frame for stopping the sub-frame, two front steering wheels are installed below the main frame, and two rear steering wheels symmetrically arranged on both sides of the articulated shaft are installed below the sub-frame, two first fixing plates are installed on one side of the main frame, and two second fixing plates are installed on the sub-frame, and shock-absorbing springs and polyurethane buffer blocks are installed between the corresponding first fixing plates and the second fixing plates, a rectangular three-dimensional frame is arranged below the main frame, two fixing seats are arranged on the bottom support rod of the rectangular three-dimensional frame, and the fixing rods of the two electric stop rods are respectively fixedly installed on the two fixing seats, and two baffles are arranged on the sub-frame, and the two baffles are respectively located directly above the telescopic rods of the two electric stop rods.

[0005] The above-mentioned engineering composite robot chassis is characterized in that: the main frame and the auxiliary frame are both rectangular frames, the long side bars of the auxiliary frame are parallel to the short side bars of the main frame, and the axis of the hinge shaft is perpendicular to the short side bars of the main frame.

[0006] The above-mentioned engineering composite robot chassis is characterized in that the two rear steering wheels are respectively installed under the two second fixing plates.

[0007] Compared with the prior art, the utility model has the following advantages:

[0008] 1. The utility model hinges a sub-frame on one side of a main frame, the sub-frame is located below the main frame, two front steering wheels are mounted on the main frame, and two rear steering wheels are mounted on the sub-frame. In actual use, when the engineering composite robot chassis walks on a ground with complex working conditions, the sub-frame can generate adaptive swing around the hinge axis, which can improve the ground adaptability of the front steering wheel and the rear steering wheel and avoid the phenomenon that the front steering wheel or the rear steering wheel is suspended.

[0009] 2. The utility model installs shock-absorbing springs and polyurethane buffer blocks between the corresponding first fixing plate and the second fixing plate. In actual use, when the sub-frame produces adaptive swing around the hinge axis, the two shock-absorbing springs will produce compression deformation, which can play a shock-absorbing role, and the two polyurethane buffer blocks can play a buffering role, and at the same time can play a role in limiting the adaptive swing limit position of the sub-frame.

[0010] 3. The utility model provides two electric stop rods symmetrically arranged on both sides of the sub-frame for stopping the sub-frame. In actual use, when the engineering composite robot chassis is walking, the telescopic rod is in a retracted state, which will not affect the adaptive swing of the sub-frame around the hinge axis. When the engineering composite robot chassis is in a stationary state, the telescopic rod is extended and pressed against the bottom surface of the baffle. At this time, under the joint action of the two electric stop rods, the sub-frame cannot swing around the hinge axis, the sub-frame is in a stopped state, and the sub-frame and the main frame are in a relatively fixed state, which can ensure the safety of the equipment installed on the engineering composite robot chassis.

[0011] 4. The utility model has a simple structure, reasonable design, low manufacturing cost and is easy to promote and apply.

[0012] In summary, the utility model has a simple structure and a reasonable design. When the engineering composite robot chassis walks on a ground with complex working conditions, the sub-frame can produce an adaptive swing around the hinge axis, which can improve the ground adaptability of the front steering wheel and the rear steering wheel, and can avoid the phenomenon that the front steering wheel or the rear steering wheel is suspended. By arranging two electric stop rods symmetrically arranged on both sides of the sub-frame, it is convenient to stop the sub-frame. When the engineering composite robot chassis is in a stationary state, the safety of the equipment installed on the engineering composite robot chassis can be guaranteed.

[0013] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 The utility model is a schematic diagram of the connection structure of the auxiliary frame, the articulated shaft and the shock absorbing spring.

[0016] Figure 3 This is a schematic diagram of the installation structure of the electric stop rod of the utility model.

[0017] Description of reference numerals:

[0018] 1—rectangular main frame; 1-1—first fixing plate; 1-2—bottom support rod;

[0019] 1-3—fixed seat; 2—sub-frame; 2-1—second fixed plate;

[0020] 2-2—fender; 3—articulated shaft; 4—front steering wheel;

[0021] 5—rear steering wheel; 6—shock-absorbing spring; 7—polyurethane buffer block;

[0022] 8-1—base; 8-2—telescopic rod. DETAILED DESCRIPTION

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the utility model comprises a main frame 1, a sub-frame 2 installed on one side of the main frame 1 and located below the main frame 1 through an articulated shaft 3, and two electric stop rods symmetrically arranged on both sides of the sub-frame 2 for stopping the sub-frame 2, two front steering wheels 4 are installed below the main frame 1, two rear steering wheels 5 symmetrically arranged on both sides of the articulated shaft 3 are installed below the sub-frame 2, two first fixing plates 1-1 are installed on one side of the main frame 1, and two second fixing plates 2-1 are installed on the sub-frame 2, relative to each other. A shock-absorbing spring 6 and a polyurethane buffer block 7 are installed between the first fixed plate 1-1 and the second fixed plate 2-1, a rectangular three-dimensional frame is arranged below the main frame 1, two fixed seats 1-3 are arranged on the bottom support rod 1-2 of the rectangular three-dimensional frame, the fixed rods 8-1 of the two electric stop rods are respectively fixedly installed on the two fixed seats 1-3, and two baffles 2-2 are arranged on the sub-frame 2, and the two baffles 2-2 are respectively located directly above the telescopic rods 8-2 of the two electric stop rods.

[0024] In this embodiment, a sub-frame 2 is hingedly installed on one side of the main frame 1, the sub-frame 2 is located below the main frame 1, two front steering wheels 4 are installed on the main frame 1, and two rear steering wheels 5 are installed on the sub-frame 2. In actual use, when the engineering composite robot chassis walks on a ground with complex working conditions, the sub-frame 2 can generate adaptive swing around the hinge shaft 3, which can improve the ground adaptability of the front steering wheel 4 and the rear steering wheel 5, and can avoid the phenomenon that the front steering wheel 4 or the rear steering wheel 5 is suspended.

[0025] In this embodiment, by installing the shock-absorbing springs 6 and the polyurethane buffer blocks 7 between the corresponding first fixing plate 1-1 and the second fixing plate 2-1, in actual use, when the sub-frame 2 generates an adaptive swing around the hinge shaft 3, the two shock-absorbing springs 6 will produce compression deformation, which can play a shock-absorbing role, and the two polyurethane buffer blocks 7 can play a buffering role, and at the same time can play a role in limiting the adaptive swing limit position of the sub-frame 2.

[0026] In this embodiment, two electric stop rods are symmetrically arranged on both sides of the sub-frame 2 for stopping the sub-frame 2. In actual use, when the engineering composite robot chassis is walking, the telescopic rod 8-2 is in a retracted state, which will not affect the adaptive swing of the sub-frame 2 around the hinge axis 3. When the engineering composite robot chassis is in a stationary state, the telescopic rod 8-2 is extended and pressed against the bottom surface of the baffle 2-2. At this time, under the joint action of the two electric stop rods, the sub-frame 2 cannot swing around the hinge axis 3, the sub-frame 2 is in a stopped state, and the sub-frame 2 and the main frame 1 are in a relatively fixed state, which can ensure the safety of the equipment installed on the engineering composite robot chassis.

[0027] like Figure 1 and Figure 2 As shown, in this embodiment, the main frame 1 and the auxiliary frame 2 are both rectangular frames, the long side bars of the auxiliary frame 2 are parallel to the short side bars of the main frame 1, and the axis of the hinge shaft 3 is perpendicular to the short side bars of the main frame 1.

[0028] In this embodiment, the two rear steering wheels 5 are respectively installed under the two second fixing plates 2 - 1 .

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, in actual use, when the engineering composite robot chassis walks on a ground with complex working conditions, it has excellent adaptability and good stability, and the front steering wheel or the rear steering wheel will not be suspended. The structure of the engineering composite robot chassis is novel and the layout is reasonable, which helps to expand the application of engineering composite robots in the fields of building decoration, off-site construction, etc.

[0030] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An engineering composite robot chassis, characterized in that: The invention comprises a main frame (1), a sub-frame (2) installed on one side of the main frame (1) through an articulated shaft (3) and located below the main frame (1), and two electric stop rods symmetrically arranged on both sides of the sub-frame (2) for stopping the sub-frame (2); two front steering wheels (4) are installed below the main frame (1); two rear steering wheels (5) symmetrically arranged on both sides of the articulated shaft (3) are installed below the sub-frame (2); two first fixing plates (1-1) are installed on one side of the main frame (1); two second fixing plates (2-1) are installed on the sub-frame (2); and the two second fixing plates (2-1) are installed on the sub-frame (2). A shock absorbing spring (6) and a polyurethane buffer block (7) are installed between the first fixing plate (1-1) and the second fixing plate (2-1); a rectangular three-dimensional frame is arranged below the main frame (1); two fixing seats (1-3) are arranged on the bottom support rod (1-2) of the rectangular three-dimensional frame; the fixing rods (8-1) of the two electric stop rods are respectively fixedly installed on the two fixing seats (1-3); and two baffles (2-2) are arranged on the sub-frame (2); the two baffles (2-2) are respectively located directly above the telescopic rods (8-2) of the two electric stop rods.

2. An engineering composite robot chassis according to claim 1, characterized in that: The main frame (1) and the auxiliary frame (2) are both rectangular frames, the long side bars of the auxiliary frame (2) are parallel to the short side bars of the main frame (1), and the axis of the hinge shaft (3) is perpendicular to the short side bars of the main frame (1).

3. The engineering composite robot chassis according to claim 1, characterized in that: The two rear steering wheels (5) are respectively installed below the two second fixing plates (2-1).

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