CN218258357U

CN218258357U - Hydraulic chassis and shore-based feeding robot

Info

Publication number: CN218258357U
Application number: CN202222185047.2U
Authority: CN
Inventors: 刘皞春; 罗龙辉
Original assignee: Guangdong Ocean University
Current assignee: Guangdong Ocean University
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2023-01-10
Anticipated expiration: 2032-08-18

Abstract

The utility model provides a hydraulic pressure chassis and bank base throw material robot relates to the agricultural machine field. The hydraulic chassis comprises a front frame, a front walking mechanism, a rear frame, a rear walking mechanism and a slewing mechanism; the front walking mechanism is connected with the front frame, and the rear walking mechanism is connected with the rear frame; the front frame is connected with the rear frame through a swing mechanism so as to be driven by the swing mechanism to swing along the direction parallel to the ground relative to the rear frame. The swing mechanism is adopted to connect the front frame and the rear frame, and drives the front frame to swing relative to the rear frame along the direction parallel to the ground, so that the reliable control of steering can be realized, the problem that the two-wheel load cannot be directly moved at any time is avoided, a direct-moving control module is not required to be independently arranged, and the manufacturing cost can be reduced.

Description

Hydraulic chassis and shore-based feeding robot

Technical Field

The utility model relates to the field of agricultural machinery, especially, relate to a hydraulic pressure chassis and bank base throw material robot.

Background

In recent years, the progress of modern electronic and information technology accelerates the stimulation and promotes the development of hydraulic technology, so that the hydraulic technology has wider application in agricultural machinery. By scientifically designing and using the hydraulic system, the technical and economic performance of mechanical equipment can be improved, and the development trend of modern agricultural mechanical equipment is also realized. The hydraulic driving technology is an important branch of the hydraulic technology, and has the advantages of high power density, wide speed regulation range, flexible layout, convenient connection with an embedded control system and the like, so that the technology is widely applied to the walking driving of special vehicles such as engineering, agricultural machinery, military and the like.

The existing agricultural hydraulic chassis adopts a two-drive structure, is designed in an integrated manner, adopts differential steering, and is driven to walk by a wheel type chassis. Wherein, the front axle is a driving wheel and is driven by connecting a hydraulic motor with a transmission shaft. Two front wheels are all provided with spring suspensions, so that better four-wheel grounding on uneven ground can be ensured, the walking stability and the ground grabbing force are ensured, and the shock impact on a transmission system in the frame can be reduced. The rear axle is two independent universal wheels, and the shock-absorbing function similar to that of the front axle can be realized by installing spring damping. The internal combustion engine transmits power to the hydraulic pump through the coupler, so that the whole hydraulic system is driven.

However, the agricultural hydraulic chassis needs to be provided with a special straight-going control module independently, and when two wheels are different in load, straight-going is difficult to achieve. In addition, the front wheels of the agricultural hydraulic chassis cannot be stressed under complex road conditions, and cannot be effectively overcome.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims at providing a hydraulic chassis.

The utility model provides a following technical scheme:

a hydraulic chassis comprises a front frame, a front walking mechanism, a rear frame, a rear walking mechanism and a swing mechanism;

the front travelling mechanism is connected with the front frame, and the rear travelling mechanism is connected with the rear frame;

the front frame is connected with the rear frame through the swing mechanism so as to be driven by the swing mechanism to swing along the direction parallel to the ground relative to the rear frame.

As a further alternative to the hydraulic chassis, the hydraulic chassis further comprises a suspension;

the front travelling mechanisms are arranged in pairs and are connected with the front frame through the suspension respectively;

the rear traveling mechanisms are arranged in pairs and are connected with the rear frame through the suspension respectively.

As a further alternative to the hydraulic chassis, the suspension comprises a spring.

As a further optional scheme for the hydraulic chassis, cushion blocks are arranged on the front travelling mechanism and the rear travelling mechanism, the cushion blocks are arranged corresponding to the springs, and the springs are connected with the corresponding cushion blocks.

Another object of the utility model is to provide a material robot is thrown to bank base.

The utility model provides a following technical scheme:

a shore-based feeding robot comprises the hydraulic chassis.

As a further optional scheme for the shore-based feeding robot, the front walking mechanism comprises a front hydraulic motor, the rear walking mechanism comprises a rear hydraulic motor, and the slewing mechanism comprises a slewing hydraulic motor;

the shore-based feeding robot further comprises a hydraulic system, the hydraulic system comprises an oil source and a first oil pump, an inlet of the first oil pump is connected with the oil source, an outlet of the first oil pump is simultaneously connected with the front hydraulic motor, the rear hydraulic motor and the rotary hydraulic motor, and a first stop valve is arranged between the outlet of the first oil pump and the rear hydraulic motor.

As a further optional scheme for the shore-based feeding robot, the hydraulic system further comprises a second oil pump and a second stop valve;

an inlet of the second oil pump is connected with the oil source, an outlet of the second oil pump is connected with the front hydraulic motor, and an outlet of the second oil pump is connected with the rear hydraulic motor through the first stop valve;

and the outlet of the first oil pump is connected with the front hydraulic motor and the rear hydraulic motor through the second stop valve.

As a further alternative to the shore-based feeding robot, the hydraulic system further comprises a third stop valve, through which the outlet of the first oil pump is connected to the oil source.

As a further optional scheme for the shore-based feeding robot, the shore-based feeding robot further includes a feeding system, the feeding system includes a fan hydraulic motor and a feeding gun rotating hydraulic motor, and an outlet of the first oil pump is further connected to the fan hydraulic motor and the feeding gun rotating hydraulic motor.

As a further optional scheme for the shore-based feeding robot, the shore-based feeding robot further comprises an electric control system, wherein the electric control system comprises a remote controller, a processing unit, a storage battery and an inverter;

the processing unit is in communication connection with the remote controller, the processing unit is electrically connected with the storage battery, and the inverter can convert direct current output by the storage battery into alternating current.

The embodiment of the utility model has the following beneficial effect:

the swing mechanism is adopted to connect the front frame and the rear frame, and drives the front frame to swing relative to the rear frame along the direction parallel to the ground, so that the reliable control of steering can be realized, the problem that the two-wheel load cannot be directly moved at any time is avoided, a direct-moving control module is not required to be independently arranged, and the manufacturing cost can be reduced.

In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 shows a side view of a shore-based feeding robot provided by an embodiment of the present invention;

fig. 2 shows a front view of a shore-based feeding robot provided by an embodiment of the present invention;

fig. 3 shows a schematic structural diagram of a front walking mechanism in a shore-based feeding robot provided by an embodiment of the present invention;

fig. 4 shows a schematic structural diagram of a front frame in a shore-based feeding robot provided by the embodiment of the present invention;

fig. 5 shows a schematic structural diagram of a hydraulic system in a shore-based feeding robot provided by an embodiment of the present invention;

fig. 6 shows a schematic structural diagram of an electric control system in a shore-based feeding robot provided by the embodiment of the utility model.

Description of the main element symbols:

100-a hydraulic chassis; 110-a front frame; 111-a backplane; 111 a-impact beam; 112-a frame; 120-front travel mechanism; 121-a support base; 121 a-cushion block; 122-front hydraulic motor; 123-coupler; 124-output shaft; 125-hub flange; 126-a hub; 127-a tire; 130-a rear frame; 140-rear running gear; 141-rear hydraulic motor; 150-a slewing mechanism; 151-slewing bearing; 152-a rotary hydraulic motor; 160-a suspension; 200-an engine; 300-a feeding system; 310-a feedbox; 320-a fan; 330-feeding gun; 340-fan hydraulic motor; 350-rotating hydraulic motor of feeding gun; 400-a hydraulic system; 500-an electronic control system; 510-a processing unit; 511-single chip microcomputer; 512-a signal receiving module; 513-solid state relay; 514-PWM conversion module; 515-a proportional controller; 520-a storage battery; 530-a transformer; 540-an inverter;

1-a source of oil; 2-a first oil pump; 3-a second oil pump; 4-a first one-way valve; 5-a second one-way valve; 6-a first reversing valve; 7-a first proportional valve; 8-a first overflow valve; 9-a second overflow valve; 10-a first stop valve; 11-a second stop valve; 12-a third one-way valve; 13-a third stop valve; 14-a first throttle; 15-a fourth stop valve; 16-a second reversing valve; 17-a second proportional valve; 18-a fifth stop valve; 19-a third directional control valve; 20-a second throttle valve; 21-sixth stop valve.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 and fig. 2, the present embodiment provides a hydraulic chassis 100, specifically a full hydraulic agricultural four-wheel drive chassis, which is applied to a shore-based feeding robot and may also be applied to other agricultural machinery. The hydraulic chassis 100 is composed of a front frame 110, a front traveling mechanism 120, a rear frame 130, a rear traveling mechanism 140, a swing mechanism 150, and a plurality of suspensions 160.

The front traveling mechanisms 120 are disposed in pairs, and the two front traveling mechanisms 120 are connected to the front frame 110 through at least one suspension 160. The rear traveling mechanisms 140 are provided in pairs, and the two rear traveling mechanisms 140 are connected to the rear frame 130 via at least one suspension 160, respectively. In addition, the front frame 110 is connected to the rear frame 130 through the swing mechanism 150 to be swung in a direction parallel to the ground with respect to the rear frame 130 by the swing mechanism 150.

Referring to fig. 3, specifically, the front traveling mechanism 120 is composed of a support base 121, a front hydraulic motor 122, a coupling 123, an output shaft 124, a hub flange 125, a hub 126, and a tire 127.

The support base 121 is connected to the front frame 110 via a suspension 160, and the support base 121 has a hollow structure. The front hydraulic motor 122 and the output shaft 124 are disposed inside the support base 121, protected by the support base 121, and the front hydraulic motor 122 is bolted to the support base 121.

An output shaft 124 is rotatably erected on the bottom surface of the inner wall of the supporting base 121 through a bearing seat, one end of the output shaft 124 is connected with the front hydraulic motor 122 through a coupler 123, and the other end of the output shaft 124 is connected with a hub flange 125 in a key mode. The hub flange 125 is bolted to the hub 126, and the tire 127 is fitted over the hub 126.

When the front hydraulic motor is used, the front hydraulic motor 122 outputs torque, the torque is transmitted through the coupler 123, the output shaft 124, the hub flange 125 and the hub 126 in sequence, the tire 127 is driven to rotate, and then the walking is realized by using the friction force between the tire 127 and the ground.

Referring to fig. 2 and 3, in particular, the supporting base 121 of the front traveling mechanism 120 is disposed below the front frame 110, and the supporting bases 121 of the two front traveling mechanisms 120 are not connected to each other and are connected to the front frame 110 through the suspension 160.

The stability and the bearing capacity of driving can be improved by adopting hydraulic power and an independent suspension 160 design.

Further, the conventional suspension 160 generally uses a coil spring as an elastic element, and the coil spring has poor anti-pollution capability, is not suitable for agricultural severe environments, and is not suitable for the field of agricultural heavy load.

In the present embodiment, the elastic element in the suspension 160 is a spring, specifically a leaf spring, to avoid the above problem.

Further, the bottom of the spring is not directly connected to the support base 121. To secure the coupling strength, a spacer 121a is bolted and fixed to the top surface of the supporting base 121. The bottom ends of the springs are connected to the corresponding spacers 121a, and further connected to the supporting base 121 through the spacers 121a, and the top ends of the springs are connected to the front frame 110 through the suspension rings.

In the present embodiment, in order to enable the front running gears 120 to withstand a large bending moment, the support base 121 of each front running gear 120 is connected to the front frame 110 by two suspensions 160. Accordingly, two pads 121a are provided on each support base 121.

Specifically, the rear traveling mechanism 140 has a similar structure to the front traveling mechanism 120, except that the rear traveling mechanism 140 includes a rear hydraulic motor 141 (see fig. 5), and torque is output by the rear hydraulic motor 141, which is not described in detail herein.

It is apparent that the hydraulic chassis 100 is a four-drive chassis when the front and rear

hydraulic motors

122 and 141 are operating simultaneously. When only the front hydraulic motor 122 is operating, the hydraulic chassis 100 is a two-drive chassis.

Referring to fig. 1 and 4 together, in particular, the swing mechanism 150 is composed of a swing bearing 151 and a swing hydraulic motor 152.

Wherein the rotation axis of the pivoting support 151 is perpendicular to the ground, and the front frame 110 is rotatably connected with the rear frame 130 through the pivoting support 151. The slewing hydraulic motor 152 drives the inner and outer rings of the slewing bearing 151 to rotate relative to each other, thereby driving the front frame 110 to swing relative to the rear frame 130 in a direction parallel to the ground.

The front frame 110 and the rear frame 130 are connected by the slewing bearing 151, and the front frame 110 is driven to swing relative to the rear frame 130 in the direction parallel to the ground by the slewing hydraulic motor 152, so that the reliable control of steering can be realized, the problem that the straight walking is difficult to realize when two wheels are loaded at different times is avoided, and the manufacturing cost can be reduced without independently arranging a straight walking control module.

In the present embodiment, the type WE9-62-BH-R-REV _ C is selected for the slewing bearing 151.

Specifically, the front frame 110 is composed of a base plate 111 and a frame 112.

Wherein the base plate 111 is connected to the front running gear 120 via a suspension 160. The frame 112 is formed by welding square steel and is welded on the upper surface of the bottom plate 111. The frame 112 is used for mounting components with large mass, such as the engine 200 and a hydraulic oil tank, and the center of gravity of the whole vehicle is sunk. Further, the slewing bearing 151 is provided at the top end of the frame 112, and is 600mm higher than the bottom plate 111.

Further, to facilitate mounting of the engine 200 and the hydraulic oil tank, a detachable frame door is provided at the front of the frame 112, and the frame door is bolted to the frame 112.

Further, an impact beam 111a is welded to the front end of the floor 111 to reduce damage due to a failure or an operational error.

Example 2

Referring to fig. 1 and 2, the present embodiment provides a shore-based feeding robot for shore-based feeding operation of aquaculture. The shore-based feeding robot comprises an engine 200, a hydraulic system 400 (see fig. 5), a feeding system 300, an electronic control system 500 (see fig. 6) and the hydraulic chassis 100. The engine 200 is mounted on the front frame 110, and the feeding system 300 is mounted on the rear frame 130.

Specifically, the feeding system 300 includes a feedbox 310, a fan 320, a feeding gun 330, a fan hydraulic motor 340, and a feeding gun rotation hydraulic motor 350.

Wherein the feedbox 310 stores therein feed. The fan 320 sucks the feed in the feedbox 310, mixes the feed with air and ejects it through the feed gun 330, using an air flow to feed the feed to a more remote area. In the process, the fan hydraulic motor 340 provides power for the operation of the fan 320, and the feeding gun rotating hydraulic motor 350 drives the feeding gun 330 to rotate, so as to adjust the feeding direction.

The fan hydraulic motor 340, the gun rotation hydraulic motor 350, and the front hydraulic motor 122, the rear hydraulic motor 141, and the swing hydraulic motor 152 in the hydraulic chassis 100 are all driven by a hydraulic system 400.

Referring to fig. 5, specifically, the hydraulic system 400 includes an oil source 1, a first oil pump 2, and a second oil pump 3.

The oil source 1 is the hydraulic oil tank, and stores hydraulic oil.

The inlet of the first oil pump 2 and the inlet of the second oil pump 3 are connected to the oil source 1, the outlet of the first oil pump 2 is connected to the blower hydraulic motor 340, the charging gun rotating hydraulic motor 350, the front hydraulic motor 122, the rear hydraulic motor 141 and the swing hydraulic motor 152, and the outlet of the second oil pump 3 is connected to the front hydraulic motor 122 and the rear hydraulic motor 141.

In addition, the first oil pump 2 and the second oil pump 3 are dual pumps, and are driven by the engine 200 to synchronously operate, so as to pump the hydraulic oil in the oil source 1 to each hydraulic motor.

As mentioned above, the front hydraulic motor 122 and the rear hydraulic motor 141 drive the shore-based feeding robot to run, the rotary hydraulic motor 152 drives the shore-based feeding robot to turn, the fan hydraulic motor 340 drives the shore-based feeding robot to feed, and the feeding gun rotating hydraulic motor 350 drives the feeding gun 330 to rotate to adjust the feeding direction. The functions performed by the respective hydraulic motors are different and will be described separately below.

Specifically, the number of the front hydraulic motors 122 is two, corresponding to the left and right front wheels, respectively, and the two front hydraulic motors 122 are connected in parallel. Similarly, the number of the rear hydraulic motors 141 is two, corresponding to the left and right rear wheels, respectively, and the two rear hydraulic motors 141 are connected in parallel.

The hydraulic system 400 further comprises a first check valve 4, a second check valve 5, a first directional valve 6, a first proportional valve 7, a first overflow valve 8 and a second overflow valve 9.

The outlet of the first oil pump 2 is connected with the inlet of a first one-way valve 4, and the outlet of the first one-way valve 4 is connected with the inlet of a first reversing valve 6. Similarly, the outlet of the second oil pump 3 is connected to the inlet of the second check valve 5, and the outlet of the second check valve 5 is connected to the inlet of the first direction changing valve 6.

The hydraulic oil supplied by the first oil pump 2 and the second oil pump 3 flows into the front hydraulic motor 122 and the rear hydraulic motor 141 through the first reversing valve 6, the first reversing valve 6 controls the inflow and outflow directions of the hydraulic oil, and further controls the front hydraulic motor 122 and the rear hydraulic motor 141 to drive the shore-based feeding robot to move forward or backward.

The inlet of the first proportional valve 7 is connected to the discharge port of the first direction changing valve 6, the outlet of the first proportional valve 7 is connected to the oil source 1, and the rotation speeds of the front hydraulic motor 122 and the rear hydraulic motor 141 can be controlled by the first proportional valve 7.

In addition, an overflow pipeline communicated to the oil source 1 is connected to an oil path between the first check valve 4 and the first reversing valve 6, and a first overflow valve 8 is arranged on the overflow pipeline and plays a role in protection.

Similarly, an overflow pipeline communicated to the oil source 1 is connected to an oil path between the second check valve 5 and the first reversing valve 6, and a second overflow valve 9 is arranged on the overflow pipeline and plays a role in protection.

Further, the hydraulic system 400 further includes a first cut-off valve 10, and the first cut-off valve 10 is connected between the first direction valve 6 and the rear hydraulic motor 141.

When the shore-based feeding robot runs on a straight road surface, the first stop valve 10 is in a closed state. At this time, the rear travel mechanism 140 floats for driving the front travel mechanism 120, and the traveling speed can be increased.

When the shore-based feeding robot runs in the field or on an uphill road section, the first stop valve 10 is in an open state. The four-wheel drive is adopted at the moment, the climbing capability and the road surface adaptability of the shore-based feeding robot can be enhanced, and the shore-based feeding robot can also effectively get rid of difficulties under complex road conditions.

Further, the hydraulic system 400 also includes a second shutoff valve 11 and a third check valve 12. The second stop valve 11 and the third check valve 12 are located between the first check valve 4 and the first reversing valve 6, and the first check valve 4, the second stop valve 11, the third check valve 12 and the first reversing valve 6 are connected in sequence.

When the shore-based feeding robot does not reach the feeding place, the second stop valve 11 is opened. In this case, the oil is supplied to the double pumps, so that the running efficiency can be improved.

When the shore-based feeding robot needs to feed materials after reaching a feeding place, the second stop valve 11 is closed, only the second oil pump 3 supplies oil independently at the moment, the hydraulic oil supply of the fan hydraulic motor 340 is guaranteed, and the power of the fan 320 is further guaranteed.

Further, the hydraulic system 400 also includes a third stop valve 13. A return pipeline communicated to the oil source 1 is connected to an oil path between the first check valve 4 and the second stop valve 11, and a third stop valve 13 is connected to the return pipeline.

In the standby phase of the start of the engine 200, the third stop valve 13 is opened, and the hydraulic oil pumped by the first oil pump 2 flows back to the oil source 1 through the return line, so as to avoid the oil pressure in the oil path from being too high.

When the shore-based feeding robot works normally, the third stop valve 13 is closed.

Further, the hydraulic system 400 also includes a first throttle 14. The first throttle 14 is connected to the return line in which the third shut-off valve 13 is located and is located between the third shut-off valve 13 and the source 1. The first throttle valve 14 can buffer the hydraulic oil which is increased instantly, and damage caused by impact is avoided.

Specifically, the hydraulic system 400 further includes a fourth shutoff valve 15, a second directional valve 16, and a second proportional valve 17.

Wherein, the inlet of the fourth cut-off valve 15 is connected between the outlet of the first check valve 4 and the inlet of the second cut-off valve 11, the outlet of the fourth cut-off valve 15 is connected with the inlet of the second reversing valve 16, and the outlet of the second reversing valve 16 is connected with the rotary hydraulic motor 152.

When the vehicle turns, the fourth stop valve 15 is opened, the hydraulic oil pumped by the first oil pump 2 flows into the rotary hydraulic motor 152 through the first check valve 4, the fourth stop valve 15 and the second directional valve 16, the rotary hydraulic motor 152 drives the inner ring and the outer ring of the rotary support 151 to rotate relatively, and the front frame 110 is driven to swing relative to the rear frame 130 in the direction parallel to the ground.

In this process, the second direction switching valve 16 controls the direction of the inflow and outflow of the hydraulic oil, thereby controlling the direction in which the swing hydraulic motor 152 rotates, and thus the swing direction of the front frame 110.

Further, an inlet of the second proportional valve 17 is connected to a discharge port of the second direction changing valve 16, and an outlet of the second proportional valve 17 is connected to the oil source 1. The speed of the swing hydraulic motor 152, and hence the rate of steering, can be controlled by the second proportional valve 17.

Specifically, the hydraulic system 400 further includes a fifth cut-off valve 18, a third direction change valve 19, and a second throttle valve 20.

The inlet of the fifth cut-off valve 18 is connected between the outlet of the first check valve 4 and the inlet of the second cut-off valve 11, the outlet of the fifth cut-off valve 18 is connected with the inlet of the third change-over valve 19, and the outlet of the third change-over valve 19 is connected with the feeding gun rotating hydraulic motor 350.

When the feeding gun 330 is rotated, the fifth stop valve 18 is opened, the hydraulic oil pumped by the first oil pump 2 flows into the feeding gun rotating hydraulic motor 350 through the first check valve 4, the fifth stop valve 18 and the third reversing valve 19, and the feeding gun rotating hydraulic motor 350 drives the feeding gun 330 to rotate.

In this process, the third directional control valve 19 controls the direction of the inflow and outflow of the hydraulic oil, thereby controlling the direction in which the lance rotating hydraulic motor 350 rotates, and thus the direction in which the lance 330 rotates.

Further, an inlet of the second throttle valve 20 is connected to a discharge port of the second direction valve 16, and an outlet of the second throttle valve 20 is connected to the oil source 1. The rotational speed of the charging gun 330 can be controlled by the second throttle valve 20.

Specifically, the hydraulic system 400 further includes a sixth cut-off valve 21, and an inlet of the sixth cut-off valve 21 is connected between an outlet of the first check valve 4 and an inlet of the second cut-off valve 11.

When feeding, the sixth stop valve 21 is opened, the hydraulic oil pumped by the first oil pump 2 flows into the fan hydraulic motor 340 through the first check valve 4 and the sixth stop valve 21, and the fan 320 is driven by the fan hydraulic motor 340 to operate.

Obviously, the fourth, fifth and sixth cut-off

valves

15, 18 and 21 are provided to enable independent control of the slewing bearing 151, the charging gun 330 and the fan 320.

The first direction valve 6, the second direction valve 16, the third direction valve 19, the first stop valve 10, the second stop valve 11, the third stop valve 13, the fourth stop valve 15, the fifth stop valve 18, the sixth stop valve 21, the first proportional valve 7 and the second proportional valve 17 are all electromagnetic valves, and whether the electricity is supplied is controlled by the electronic control system 500.

Referring to fig. 6, specifically, the electronic control system 500 includes a remote controller, a processing unit 510, a battery 520, a transformer 530, and an inverter 540.

The processing unit 510 is in communication connection with a remote controller, and controls the valve according to an instruction sent by the remote controller. The storage battery 520 is simultaneously electrically connected to the processing unit 510 and the electromagnets of the respective valves, and simultaneously supplies power to the processing unit 510 and the electromagnets of the respective valves.

In the present embodiment, the processing unit 510 is composed of a single chip microcomputer 511, a signal receiving module 512, a solid-state relay 513, a PWM conversion module 514, and a proportional controller 515. The single chip microcomputer 511 is electrically connected with the signal receiving module 512, the solid-state relay 513 and the PWM conversion module 514 at the same time, and the PWM conversion module 514 is electrically connected with the proportional controller 515.

The signal receiving module 512 can receive a signal from a remote controller and transmit the signal to the single chip microcomputer 511. On the one hand, the single chip microcomputer 511 controls whether the electromagnets in the first direction changing valve 6, the second direction changing valve 16, the third direction changing valve 19, the first cut-off valve 10, the second cut-off valve 11, the third cut-off valve 13, the fourth cut-off valve 15, the fifth cut-off valve 18 and the sixth cut-off valve 21 are energized or not through the solid-state relay 513. On the other hand, the single chip microcomputer 511 controls the first and second proportional valves 7 and 17 through the PWM conversion module 514 and the proportional controller 515.

In this embodiment, the battery 520 outputs 12V dc power to directly supply power to the single chip microcomputer 511, the signal receiving module 512, the solid state relay 513 and the PWM conversion module 514. The transformer 530 converts the voltage output from the battery 520 into a 24V dc power and then inputs the voltage to the proportional controller 515. The inverter 540 converts the voltage output from the battery 520 into 220V ac power and then inputs the ac power to the electromagnets of the respective valves, thereby achieving a rapid response.

In a word, under the control of the electric control system 500, the shore-based feeding robot can realize the functions of four-wheel drive walking, four-wheel drive steering, gear switching, feeding robbery rotation, walking speed regulation, steering speed regulation, fan 320 switching, single-pump and double-pump oil supply switching and the like, and can be remotely controlled through a remote controller.

In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A hydraulic chassis is characterized by comprising a front frame, a front walking mechanism, a rear frame, a rear walking mechanism and a slewing mechanism;

2. The hydraulic chassis of claim 1, further comprising a suspension;

3. The hydraulic chassis of claim 2, wherein the suspension comprises a spring.

4. The hydraulic chassis of claim 3, wherein the front and rear traveling mechanisms each have a pad disposed thereon, the pads corresponding to the springs, and the springs being connected to the corresponding pads.

5. A shore-based charging robot, characterized in that it comprises a hydraulic chassis according to any one of claims 1-4.

6. The shore-based charging robot as recited in claim 5, wherein the front traveling mechanism comprises a front hydraulic motor, the rear traveling mechanism comprises a rear hydraulic motor, and the slewing mechanism comprises a slewing hydraulic motor;

7. The shore-based charging robot of claim 6, wherein said hydraulic system further comprises a second oil pump and a second stop valve;

8. The shore-based dosing robot of claim 7, wherein the hydraulic system further comprises a third shut-off valve through which the outlet of the first oil pump is connected to the oil source.

9. A shore based charging robot according to any one of claims 6 to 8, further comprising a charging system comprising a fan hydraulic motor and a charging gun rotary hydraulic motor, the outlet of the first oil pump being further connected to the fan hydraulic motor and the charging gun rotary hydraulic motor.

10. The shore-based charging robot according to any one of claims 6 to 8, further comprising an electronic control system comprising a remote controller, a processing unit, a battery and an inverter;