Drive-by-wire steering structure of miniaturized unmanned sweeper

Abstract

The utility model relates to the technical field of unmanned sweeping vehicles, and discloses a drive-by-wire steering structure of a miniaturized unmanned sweeping vehicle, which comprises a mounting frame, and a steering device is arranged on the mounting frame. According to the drive-by-wire steering structure of the small unmanned sweeper, the liquid guide pipe, the first spring, the sealing plate and the second spring are arranged, the sealing plate is buffered through the elastic force of the first spring and the second spring, the steering position of the unmanned sweeper is damped and buffered, when the sealing plate moves up and down, hydraulic oil is pushed to move, and the hydraulic oil flows through the resistance generated when the hydraulic oil flows; the device gradually tends to be stable; by arranging a rotating shaft, an elastic limiting rod and adjusting plates, the rotating shaft is rotated, the relative position of the two adjusting plates is adjusted, the flowing sectional area of hydraulic oil is adjusted, the flowing speed of the hydraulic oil in a liquid guide pipe is controlled, and the damping effect of the steering position of the unmanned sweeper can be adjusted according to different road conditions; and the upper adjusting plate can be conveniently positioned.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned sweeper technology field, concretely is a kind of miniaturization unmanned sweeper line control's steering structure. BACKGROUND

[0002] Sweeper is the integration of garbage sweeper that combines sweeping and dust collection, with high work efficiency, low cleaning cost, good cleaning effect, high safety performance, high economic return rate and other advantages, has been widely used in the cleaning work of large and small cities.

[0003] Chinese patent discloses a kind of sweeper atomizing nozzle and wheel synchronous control mechanism, and the publication number is CN219707094U, including frame, servo motor, gear, rack and front wheel assembly, servo motor output shaft connects gear, and is fixedly supported on frame, rack is engaged with gear, gear rotation drives rack to move left and right, characterized in that: the rack left and right ends are equipped with moving shaft, and moving shaft is supported on the limiting guide sleeve of frame inner side;The rack below is equipped with steering telescopic shaft, is connected by connecting shaft, and steering telescopic shaft can slide in the recess of steering support plate;Frame both sides are equipped with atomizing nozzle and can be driven by rack, and synchronous steering with front wheel assembly.Its advantages are: (1) using moving shaft instead of linear rail slider, save cost while expanding the scope of use;(2) there is synchronous steering atomizing nozzle, improves the cleaning ability of sweeper;(3) unmanned steering control can be realized, improves the intelligentization.

[0004] But still include following shortcomings: device utilizes servo motor to drive front wheel rotation, realizes control sweeper steering, but device does not buffer and shock absorption to sweeper front wheel part, not conducive to weaken the vibration of sweeper.Therefore, we propose a kind of miniaturization unmanned sweeper line control's steering structure to solve this problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of miniaturization unmanned sweeper line control's steering structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of miniaturization unmanned sweeper line control's steering structure, including mounting bracket, the mounting bracket is provided with steering device, and the steering device includes steering part;

[0007] The steering part includes steering rod, the outer surface of the bottom end of the steering rod is sealed and slidably sleeved with connecting barrel, and the bottom surface of the connecting barrel is fixedly connected with moving assembly;

[0008] The mounting bracket is provided with buffer portion below;

[0009] The buffer part comprises a liquid guide pipe and a sealing plate, the top surface of the sealing plate is fixedly connected with the bottom surface of the steering rod, and the left end surface of the liquid guide pipe is fixedly connected with an elastic limiting rod.

[0010] Further improvement lies in that the steering part further comprises a motor, a first gear, a second gear, a rotating shaft and a rotating piece, the rotating piece is fixedly sleeved on the outer surface of the rotating shaft, the bottom surface of the rotating shaft is fixedly connected with the top surface of the steering rod, and the inner wall of the mounting frame extends to the inside of the rotating piece and is slidably connected with the inner wall of the rotating piece, the rotating piece, the steering rod, the rotating shaft and the connecting cylinder are arranged to facilitate positioning of the moving assembly and ensure normal rolling of the moving assembly, and the rotating shaft is controlled to control the steering of the unmanned sweeper.

[0011] Further improvement lies in that the top surface of the motor is fixedly connected with the bottom surface of the mounting frame, the outer surface of the motor output shaft is rotatably penetrated through the bottom surface of the mounting frame and extends above the mounting frame, the first gear is fixedly sleeved on the outer surface of the motor output shaft, and the second gear is fixedly sleeved on the outer surface of the rotating shaft, the motor, the first gear and the second gear are arranged to facilitate driving the rotating shaft to rotate and facilitate controlling the steering of the unmanned sweeper.

[0012] Further improvement lies in that the buffer part further comprises a rotating shaft, an adjusting plate, a first spring and a second spring, the outer surfaces of the first spring and the second spring are fixedly connected with the outer surface of the sealing plate, and the outer surfaces of the first spring and the second spring are fixedly connected with the inner wall of the connecting cylinder, the first spring, the second spring and the sealing plate are arranged to facilitate buffering of the steering rod and facilitate shock absorption of the steering position of the unmanned sweeper.

[0013] Further improvement lies in that the outer surface of the liquid guide pipe is fixedly and penetratively connected with the outer surface of the connecting cylinder, and the interiors of the liquid guide pipe and the connecting cylinder are provided with hydraulic oil, the liquid guide pipe is arranged to utilize the resistance between the parts and the liquid to gradually stabilize the device.

[0014] Further improvement lies in that the outer surface of the rotating shaft is rotatably penetrated through the outer surface of the liquid guide pipe and extends to the interior of the liquid guide pipe, the top surface of the adjusting plate is fixedly connected with the bottom surface of the rotating shaft, and the outer surface of the adjusting plate is fixedly connected with the inner wall of the liquid guide pipe, the adjusting plate and the rotating shaft are arranged to facilitate controlling the flow rate of the solution in the liquid guide pipe and adjusting the shock absorption effect according to different road surfaces.

[0015] Further improvement lies in that the outer surface of the rotating shaft is provided with a clamping groove, and the outer surface of the elastic limiting rod extends to the inside of the clamping groove, the elastic limiting rod is arranged to facilitate positioning of the rotating shaft.

[0016] Compared with the prior art, the small unmanned sweeper line control steering structure has the beneficial effects that: the liquid guide pipe, the first spring, the sealing plate and the second spring are arranged, the elastic force of the first spring and the second spring is utilized to buffer the sealing plate and to buffer and reduce the vibration of the steering position of the unmanned sweeper, meanwhile, when the sealing plate moves up and down, the hydraulic oil is pushed to move, the resistance of the flowing hydraulic oil is utilized to make the device gradually stable; the rotating shaft, the elastic limiting rod and the adjusting plate are arranged, the rotating shaft is rotated, the relative positions of the two adjusting plates are adjusted, the hydraulic oil flow area is adjusted, the hydraulic oil flowing speed in the liquid guide pipe is controlled, according to different road conditions, the vibration reduction effect of the steering position of the unmanned sweeper can be adjusted, the elastic limiting rod is utilized to limit the rotating shaft, and the upper adjusting plate is positioned conveniently; the motor, the first gear, the second gear, the rotating shaft, the rotating piece, the steering rod, the connecting barrel and the moving assembly are arranged, the line control system is utilized, the motor output shaft is controlled to rotate, the rotating shaft is utilized to drive the steering rod and the moving assembly to rotate, and the steering angle of the unmanned sweeper is controlled. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the steering device of the utility model;

[0018] Figure 2 It is a three-dimensional structure sectional view of the steering device of the utility model;

[0019] Figure 3 It is Figure 2 It is a structure enlarged view of A in the middle;

[0020] Figure 4 It is a three-dimensional structure local sectional view of the buffer part of the utility model;

[0021] Figure 5 It is a three-dimensional structure schematic view of the adjusting plate of the utility model.

[0022] In the drawing: 1 mounting frame, 2 steering device, 21 steering part, 22 buffer part, 211 motor, 212 first gear, 213 second gear, 214 rotating shaft, 215 rotating piece, 216 steering rod, 217 connecting barrel, 218 moving assembly, 221 liquid guide pipe, 222 rotating shaft, 223 elastic limiting rod, 224 adjusting plate, 225 first spring, 226 sealing plate, 227 second spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Referring to Figures 1-5 The utility model provides a technical scheme: a small unmanned sweeper wire control steering structure, including mounting frame 1, be provided with steering device 2 on mounting frame 1, steering device 2 includes steering portion 21,

[0025] Steering portion 21 includes steering rod 216, and the outer surface sealing sliding sleeve of the bottom end of steering rod 216 is provided with connecting barrel 217, and the bottom surface of connecting barrel 217 is fixedly connected with moving assembly 218, and steering portion 21 further includes motor 211, first gear 212, second gear 213, rotating shaft 214 and rotating part 215;

[0026] The top surface of motor 211 is fixedly connected with the bottom surface of mounting frame 1, and the outer surface of the output shaft of motor 211 is rotatably penetrated through the bottom surface of mounting frame 1 and extends to above mounting frame 1, rotating part 215 is fixedly sleeved on the outer surface of rotating shaft 214, the bottom surface of rotating shaft 214 is fixedly connected with the top surface of steering rod 216, and the inner wall of mounting frame 1 extends to the inside of rotating part 215 and is slidably connected with the inner wall of rotating part 215;

[0027] First gear 212 is fixedly sleeved on the outer surface of the output shaft of motor 211, and second gear 213 is fixedly sleeved on the outer surface of rotating shaft 214, by being provided with motor 211, first gear 212, second gear 213, rotating shaft 214, rotating part 215, steering rod 216, connecting barrel 217 and moving assembly 218, the output shaft rotation of motor 211 is controlled using wire control system, and steering rod 216 and moving assembly 218 are driven to rotate using rotating shaft 214, and the steering angle of unmanned sweeper is controlled;

[0028] Mounting frame 1 below is provided with buffer portion 22;

[0029] Buffer portion 22 includes liquid guide pipe 221 and sealing plate 226, the top surface of sealing plate 226 is fixedly connected with the bottom surface of steering rod 216, the left end surface of liquid guide pipe 221 is fixedly connected with elastic limiting rod 223, and buffer portion 22 further includes rotating shaft 222, adjusting plate 224, first spring 225 and second spring 227;

[0030] The outer surface of liquid guide pipe 221 is fixedly connected with the outer surface of connecting barrel 217, and hydraulic oil is arranged in the inside of liquid guide pipe 221 and the inside of connecting barrel 217;

[0031] The outer surface of the first spring 225 and the outer surface of the second spring 227 are fixedly connected with the outer surface of the sealing plate 226, and the outer surface of the first spring 225 and the outer surface of the second spring 227 are fixedly connected with the inner wall of the connecting cylinder 217, by arranging the liquid guide pipe 221, the first spring 225, the sealing plate 226 and the second spring 227, the elastic force of the first spring 225 and the second spring 227 is used for buffering the sealing plate 226, and the turning position of the unmanned sweeper is buffered and damped, and meanwhile, when the sealing plate 226 moves up and down, the hydraulic oil is pushed to move, the resistance of the hydraulic oil when flowing is used to make the device gradually stable;

[0032] The outer surface of the rotating shaft 222 penetrates through the outer surface of the liquid guide pipe 221 and extends into the inside of the liquid guide pipe 221 in a rotating mode through a sealing bearing, the top surface of the upper adjusting plate 224 is fixedly connected with the bottom surface of the rotating shaft 222, and the outer surface of the lower adjusting plate 224 is fixedly connected with the inner wall of the liquid guide pipe 221;

[0033] The outer surface of the rotating shaft 222 is provided with a clamping groove, and the outer surface of the elastic limiting rod 223 extends into the inside of the clamping groove, by arranging the rotating shaft 222, the elastic limiting rod 223 and the adjusting plate 224, the relative position of the two adjusting plates 224 is adjusted by rotating the rotating shaft 222, the hydraulic oil flow area is adjusted, the hydraulic oil flow speed in the liquid guide pipe 221 is controlled, the damping effect of the turning position of the unmanned sweeper can be adjusted according to different road conditions, and the rotating shaft 222 is limited by the elastic limiting rod 223, so that the upper adjusting plate 224 is positioned.

[0034] In use, the elastic limiting rod 223 is pulled, and the rotating shaft 222 is rotated, the rotating shaft 222 drives the upper adjusting plate 224 to rotate, the relative deflection angle of the two adjusting plates 224 is adjusted, when the unmanned sweeper bounces, the sealing plate 226 slides up and down along the inner wall of the connecting cylinder 217, the first spring 225 and the second spring 227 are stretched and contracted, the sealing plate 226 is damped, meanwhile, the sealing plate 226 pushes the hydraulic oil to flow, and the reverse force of the hydraulic oil on the sealing plate 226 makes the sealing plate 226 gradually stable.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A small unmanned sweeper vehicle steer-by-wire steering structure, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with a steering device (2), the steering device (2) comprises a steering part (21); The steering part (21) comprises a steering rod (216), the outer surface of the bottom end of the steering rod (216) is provided with a connecting barrel (217) in a sliding fit, and the bottom surface of the connecting barrel (217) is fixedly connected with a moving assembly (218); The mounting frame (1) is provided below with a buffer part (22); The buffer part (22) comprises a liquid guide pipe (221) and a sealing plate (226), the top surface of the sealing plate (226) is fixedly connected with the bottom surface of the steering rod (216), and the left end surface of the liquid guide pipe (221) is fixedly connected with an elastic limiting rod (223).

2. The small unmanned sweeping vehicle steer-by-wire structure according to claim 1, characterized in that: The steering part (21) further comprises a motor (211), a first gear (212), a second gear (213), a rotating shaft (214) and a rotating piece (215), the rotating piece (215) is fixedly sleeved on the outer surface of the rotating shaft (214), the bottom surface of the rotating shaft (214) is fixedly connected with the top surface of the steering rod (216), and the inner wall of the mounting frame (1) extends to the inside of the rotating piece (215) and is in sliding connection with the inner wall of the rotating piece (215).

3. The small unmanned sweeping vehicle steer-by-wire structure according to claim 2, characterized in that: The top surface of the motor (211) is fixedly connected with the bottom surface of the mounting frame (1), the outer surface of the output shaft of the motor (211) is rotatably penetrated through the bottom surface of the mounting frame (1) and extends to above the mounting frame (1), the first gear (212) is fixedly sleeved on the outer surface of the output shaft of the motor (211), and the second gear (213) is fixedly sleeved on the outer surface of the rotating shaft (214).

4. The small unmanned sweeping vehicle steer-by-wire structure according to claim 1, characterized in that: The buffer part (22) further comprises a rotating shaft (222), an adjusting plate (224), a first spring (225) and a second spring (227), the outer surfaces of the first spring (225) and the second spring (227) are fixedly connected with the outer surface of the sealing plate (226), and the outer surfaces of the first spring (225) and the second spring (227) are fixedly connected with the inner wall of the connecting barrel (217).

5. The small unmanned sweeping vehicle steer-by-wire structure according to claim 1, characterized in that: The outer surface of the liquid guide pipe (221) is fixedly connected with the outer surface of the connecting barrel (217), and the interiors of the liquid guide pipe (221) and the connecting barrel (217) are provided with hydraulic oil.

6. The small unmanned sweeping vehicle steer-by-wire structure according to claim 4, characterized in that: The outer surface of the rotating shaft (222) is rotatably penetrated through the outer surface of the liquid guide pipe (221) and extends to the inside of the liquid guide pipe (221), the top surface of the adjusting plate (224) is fixedly connected with the bottom surface of the rotating shaft (222), and the outer surface of the adjusting plate (224) is fixedly connected with the inner wall of the liquid guide pipe (221).

7. The small unmanned sweeping vehicle steer-by-wire structure according to claim 4, characterized in that: The outer surface of the rotating shaft (222) is provided with a clamping groove, and the outer surface of the elastic limiting rod (223) extends to the inside of the clamping groove.

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