CN110905029A

CN110905029A - Automatic getting-on system and excavator

Info

Publication number: CN110905029A
Application number: CN201911278505.3A
Authority: CN
Inventors: 金江山; 付志伟; 李晓波
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-03-24
Anticipated expiration: 2039-12-12

Abstract

The application relates to excavator additional equipment technical field especially relates to an automatic system and excavator of getting on bus for the excavator, the excavator includes the automobile body, and the automatic system of getting on bus includes: the bearing assembly and the driving assembly are arranged on the vehicle body; the carrying assembly is used for carrying people or articles, and the driving assembly is used for driving the carrying assembly to move relative to the vehicle body so as to enable the people or articles placed on the carrying assembly to ascend or descend. The system can realize the easy getting on of the driver, avoid climbing and ensure the safety.

Description

Automatic getting-on system and excavator

Technical Field

The application relates to the technical field of additional equipment of excavators, in particular to an automatic loading system and an excavator.

Background

At present, the distance between a track and a cab of a large excavator is large, a driver has certain difficulty in getting on the excavator, the driver needs to step on the outer wall of the cab for two or more steps, and sometimes the excavator is stepped off to cause scratches.

Disclosure of Invention

An object of this application is to provide an automatic system and excavator of getting on bus, the driver difficulty of getting on bus of the excavator that has solved to a certain extent that exists among the prior art, and appear stepping on empty injured's technical problem easily.

The application provides an automatic loading system for an excavator, wherein the excavator comprises an excavator body; the automatic boarding system includes: the bearing assembly and the driving assembly are arranged on the vehicle body;

the carrying assembly is used for carrying a person or an article, and the driving assembly is used for driving the carrying assembly to move relative to the vehicle body so as to enable the person or the article placed on the carrying assembly to ascend or descend.

In the above technical solution, further, the automatic boarding system further includes a first support member, a second support member, and a drive mechanism;

wherein the first support member is provided on a body of the excavator; the second support member is rotatably connected with the first support member; the driving mechanism is arranged on the body of the excavator, is connected with the second supporting member and is used for driving the second supporting member and the driving assembly and the bearing assembly which are arranged on the second supporting member to rotate relative to the first supporting member and the body of the excavator.

In any of the above technical solutions, further, the bearing assembly includes a third supporting member and a bearing member;

the driving assembly comprises a first driving device, a first transmission mechanism, a second driving device and a second transmission mechanism;

wherein the first driving device is capable of driving the third support member via the first transmission mechanism and the second driving device, the second transmission mechanism and the carrying member provided on the third support member are movable in a first direction relative to the second support member; the second driving device drives the bearing member to move along the first direction relative to the third supporting member through the second transmission mechanism.

In any of the above technical solutions, further, the first support member includes a main support body, a first connection portion, and a second connection portion;

the first connecting part is connected with one end of the main support body, and the second connecting part is connected with the other opposite end of the main support body;

the main support body is connected with the vehicle body; the first connecting portion and the second connecting portion are rotatably connected to the second support member.

In any of the above solutions, further, the second support member includes a first support housing and a second support housing;

the first support shell is positioned on one side of the first connecting part and is rotatably connected with the first connecting part; the second support shell is positioned on one side of the second connecting part and is rotationally connected with the second connecting part; an installation space is formed between the first support housing and the second support housing, and the third support member is disposed in the installation space;

openings are formed in the opposite sides of the first supporting shell and the second supporting shell;

the number of the first driving devices and the number of the first transmission mechanisms are two, one of the first driving devices and one of the first transmission mechanisms which are arranged in a matched manner are arranged in the first supporting shell, and the one of the first transmission mechanisms which is arranged in a matched manner penetrates through the opening of the first supporting shell and is connected to one side of the third supporting component; the other first driving device and the other first transmission mechanism which is arranged in a matched mode are arranged in the second supporting shell, and the other first transmission mechanism which is arranged in a matched mode penetrates through the opening of the second supporting shell and is connected to the other opposite side of the third supporting component.

In any of the above technical solutions, further, the third support member includes a base body, a first support portion, a first mounting portion, a second support portion, and a second mounting portion; the first supporting part is connected with one side of the base body, and the second supporting part is connected with the other opposite side of the base body; the first mounting part is connected with one side of the first supporting part, which is far away from the base body, and the second mounting part is connected with one side of the second supporting part, which is far away from the base body;

the first supporting part is connected with one of the first transmission mechanisms, and the second supporting part is connected with the other one of the first transmission mechanisms;

the first mounting part, the first supporting part and the base body are enclosed into mounting grooves with two ends and lateral openings, and the second driving device and the second transmission mechanism are arranged in the mounting grooves;

an accommodating space is formed between the first mounting part and the second mounting part, and the bearing component is arranged in the accommodating space.

In any one of the above technical solutions, further, the carrier member includes a main carrier, a first connecting portion, a second connecting portion, and a third connecting portion;

the first connecting part is connected with one side of the main bearing body, and the second connecting part is connected with the other opposite side of the main bearing body; the first connecting part is connected with the first mounting part in a sliding manner, and the second connecting part is connected with the second mounting part in a sliding manner; the third connecting portion is connected to the second transmission mechanism.

In any of the above technical solutions, further, both the first driving device and the second driving device are hydraulic motors; the driving mechanism is a hydraulic cylinder.

In any of the above technical solutions, the automatic boarding system further includes a hydraulic pressure supply device disposed on the vehicle body, the hydraulic pressure supply device is respectively connected to the first driving device, the second driving device and the driving mechanism, and hydraulic control valves are disposed between the hydraulic pressure supply device and each of the first driving device, the second driving device and the driving mechanism.

In any of the above technical solutions, further, the automatic boarding system further includes a control device and a switch provided on the vehicle body; wherein the control device is respectively connected with the switch and the hydraulic control valve.

In any of the above technical solutions, further, the automatic loading system further includes a gravity sensor and a position sensor, the gravity sensor and the position sensor are both disposed on the bearing member, and the gravity sensor and the position sensor are both connected to the control device.

In any of the above technical solutions, further, the first transmission mechanism and the second transmission mechanism are ball screw mechanisms.

The application also provides an excavator, which comprises the automatic boarding system according to any technical scheme, so that all beneficial technical effects of the automatic boarding system are achieved, and the details are not repeated.

Compared with the prior art, the beneficial effect of this application is:

the application provides an automatic system of getting on bus utilizes actuating mechanism drive carrier assembly relative automobile body to remove, can realize arranging driver on the carrier member etc. and rise or descend, and then realizes driver's light getting on bus, has removed the climbing from, and then avoids the unexpected injured risk, and then has guaranteed driver's safety.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic partial structural diagram of an automatic boarding system provided by an embodiment of the application;

FIG. 2 is a schematic structural diagram of another part of the automatic boarding system provided by the embodiment of the application;

fig. 3 is a schematic structural diagram of another part of the automatic boarding system provided by the embodiment of the application.

Reference numerals:

1-a first support element, 11-a main support body, 12-a first connection part, 13-a second connection part, 2-a second support element, 21-a first support housing, 211-a first connection lug, 22-a second support housing, 221-a second connection lug, 3-a third support element, 31-a base body, 32-a first support part, 33-a first mounting part, 34-a second support part, 35-a second mounting part, 4-a bearing element, 41-a main bearing body, 42-a first connection part, 421-a transverse plate, 422-a longitudinal plate, 43-a second connection part, 44-a third connection part, 5-a first transmission mechanism, 6-a second transmission mechanism, 7-a drive mechanism, 8-a slide rail, 9-sliding block.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

An automatic loading system and an excavator according to some embodiments of the present application are described below with reference to fig. 1 to 3.

Example one

Referring to fig. 1 to 3, an embodiment of the present application provides an automatic loading system for an excavator, the excavator including a body including a cab, the automatic loading system including: a first support member 1, a second support member 2, a third support member 3, a carrier member 4, a first drive device, a first transmission mechanism 5, a second drive device, a second transmission mechanism 6, and a drive mechanism 7;

wherein, the first supporting member 1 is fixedly arranged on the body of the excavator; the second support member 2 is rotatably connected to the first support member 1 (e.g., by a pin), although not limited thereto; the driving mechanism 7 is arranged on the body of the excavator, the driving mechanism 7 can be arranged under the cab, and the driving mechanism 7 is connected with the second supporting member 2 and used for driving the second supporting member 2 and the first driving device, the first transmission mechanism 5, the second driving device, the second transmission mechanism 6, the third supporting member 3 and the bearing member 4 arranged on the second supporting member 2 to rotate relative to the first supporting member 1 and the body of the excavator, wherein the second supporting member 2 and all the parts arranged on the second supporting member 2 are arranged outside the cab;

the first driving device drives the third supporting member 3 through the first transmission mechanism 5, and the second driving device, the second transmission mechanism 6 and the bearing member 4 which are arranged on the third supporting member 3 move along a first direction relative to the second supporting member 2, wherein the first direction is a direction forming an included angle with the vertical direction; the second drive means drives the carrier member 4 via the second transmission 6 also in the first direction relative to the third support member 3.

The automatic system of getting on bus that this embodiment provided during operation:

(1) the whole system is hung outside the cab and is not started to work, namely the system is in an initial A state;

(2) when a driver needs to get on the vehicle, the driving mechanism 7 drives the second supporting member 2 and the first driving device, the first transmission mechanism 5, the second driving device, the second transmission mechanism 6, the third supporting member 3 and the bearing member 4 arranged on the second supporting member 2 to swing to a specified position from the position close to the vehicle body to the position far away from the vehicle body, and after the components are in place, the driving mechanism 7 stops working;

the first driving device drives the third supporting member 3 through the first transmission mechanism 5, and the second driving device, the second transmission mechanism 6 and the carrying member 4 which are arranged on the third supporting member 3 move along the first direction and descend relative to the second supporting member 2 to a specified position, and after the members are in position, the first driving device stops working;

the second driving device drives the bearing member 4 to move along the first direction relative to the third supporting member 3 through the second transmission mechanism 6 and descend to a specified position, for example, the bearing member 4 descends to a position about 250mm away from the ground, at this time, the second driving device stops working, and at this time, the system is in a state B;

(3) when a driver walks onto the bearing member 4, the first driving device drives the third supporting member 3 and the second driving device, the second transmission mechanism 6 and the bearing member 4 which are arranged on the third supporting member 3 through the first transmission mechanism 5 to move and ascend along the first direction relative to the second supporting member 2 and ascend to a specified position, and the first driving device stops working; then, the second driving device drives the bearing member 4 to move and ascend to a specified position along the first direction relative to the third supporting member 3 through the second transmission mechanism 6, for example, the bearing member 4 ascends to a position about 250mm away from the ground of the cab, the second driving device stops working, and the system is in the state C.

Note here that when the driver steps on the carrier member 4, the second driving device drives the carrier member 4 to move upward in the first direction to a predetermined position with respect to the third support member 3 by the second transmission mechanism 6, the second driving device stops operating, and thereafter, the first driving device drives the third support member 3 and the second driving device provided on the third support member 3, the second transmission mechanism 6, and the carrier member 4 to move upward in the first direction with respect to the second support member 2 by the first transmission mechanism 5, and to a predetermined position, for example, the carrier member 4 is raised to a position about 250mm from the floor of the cab, and the first driving device stops operating.

(4) The driver gets on the vehicle from the bearing component 4, namely, the driver walks into the cab, the driving mechanism 7 drives the second supporting component 2 and the first driving device, the first transmission mechanism 5, the second driving device, the second transmission mechanism 6, the third supporting component 3 and the bearing component 4 which are arranged on the second supporting component 2 to swing to a designated position from a position far away from the vehicle body to a position close to the vehicle body, and then the driving mechanism 7 stops working, namely, the system returns to the initial A state.

When a driver needs to get off the vehicle, the system is firstly adjusted to the state C, the driver steps on the bearing member 4, the system is adjusted to the state B, the driver gets off the vehicle, and then the system returns to the initial state A again, and the specific process can refer to the process.

Therefore, the automatic loading system can realize the easy loading of the driver, the climbing is avoided, the accidental injury risk is avoided, and the safety of the driver is ensured.

In this embodiment, preferably, as shown in fig. 1 to 3, the first support member 1 includes a main support body 11, a first connecting portion 12, and a second connecting portion 13;

the first connecting part 12 is connected to one end of the main support 11, and the second connecting part 13 is connected to the opposite end of the main support 11, alternatively, the main support 11, the first connecting part 12 and the second connecting part 13 may be an integral structure, but not limited thereto, and the plates may be connected by welding or fastening;

the main support body 11 is connected with the vehicle body; the first connecting portion 12 and the second connecting portion 13 are both rotatably connected to the second support member 2.

In this embodiment, preferably, as shown in fig. 1 to 3, the second support member 2 includes a first support housing 21 and a second support housing 22, optionally, the first support housing 21 and the second support housing 22 are both rectangular housings and are parallel to each other, and the first support housing 21 and the second support housing 22 are symmetrically disposed about the first support member 1;

the first support housing 21 is located at one side of the first connection portion 12 and is rotatably connected to the first connection portion 12, specifically, a first connection ear plate 211 extends from one end of the first support housing 21, and the first connection ear plate 211 is rotatably connected to the first connection portion 12 of the first support member 1 (for example, the first support housing is rotatably connected by a pin); the second support housing 22 is located at one side of the second connection portion 13 and is rotatably connected to the second connection portion 13, specifically, a second connection ear plate 221 extends from one end of the second support housing 22, and the second connection ear plate 221 is rotatably connected to the second connection portion 13 of the second support member 2 through a rotation shaft; an installation space is formed between the first support housing 21 and the second support housing 22, and the third support member 3 is disposed in the installation space;

openings are formed in the opposite sides of the first supporting shell 21 and the second supporting shell 22;

the number of the first driving devices and the number of the first transmission mechanisms 5 are two, one of the first driving devices and one of the first transmission mechanisms 5 which are arranged in a matched manner are arranged in the first supporting shell 21, and the one of the first transmission mechanisms 5 which is arranged in a matched manner penetrates through the opening of the first supporting shell 21 and is connected to one side of the third supporting component 3; the other first driving device and the other first transmission mechanism 5 are both arranged in the second supporting shell 22, and the other first transmission mechanism 5 is arranged in a matching manner and passes through the opening of the second supporting shell 22 to be connected to the other opposite side of the third supporting member 3.

As can be seen from the above structural description, the first support housing 21 not only plays a role of supporting the third support member 3 and the second driving device, the second transmission mechanism 6 and the carrying member 4 integrated on the third support member 3, but also plays a role of supporting and protecting the first driving device and the first transmission mechanism 5, especially when the first transmission mechanism 5 is a ball screw mechanism, the ball screw mechanism includes a screw rod, a nut and a nut seat, the nut is sleeved on the screw rod, the nut seat is fixed on the nut, the nut can drive the nut seat to move along the screw rod, one end of the screw rod is rotatably connected to one end, especially the upper end, of the first support housing 21 through a bearing seat, the other end of the screw rod is rotatably connected to the other end, especially the lower end, of the first support housing 21 through a bearing seat, and the first support housing 21 plays a role of supporting the screw rod; the nut holder is connected to one side of the third support member 3 through the open end of the first support housing 21.

In this embodiment, preferably, as shown in fig. 1 to 3, the third support member 3 includes a base 31, a first support portion 32, a first mounting portion 33, a second support portion 34, and a second mounting portion 35; wherein, the first supporting part 32 is connected with one side of the base body 31, and the second supporting part 34 is connected with the other opposite side of the base body 31; the first mounting part 33 is connected with one side of the first supporting part 32 far away from the base body 31, and the second mounting part 35 is connected with one side of the second supporting part 34 far away from the base body 31;

the first support portion 32 is connected to one of the first transmission mechanisms 5, and the second support portion 34 is connected to the other of the first transmission mechanisms 5;

the first mounting part 33, the first supporting part 32 and the base body 31 are enclosed into mounting grooves with two ends and lateral openings, and the second driving device and the second transmission mechanism 6 are arranged in the mounting grooves;

the first mounting portion 33 and the second mounting portion 35 form an accommodating space therebetween, and the carrier member 4 is disposed in the accommodating space.

As can be seen from the above-mentioned structure, the nut seat of the first transmission mechanism 5 is connected to the first supporting portion 32 of the third supporting member 3 through the open end of the first supporting housing 21, so that when the first driving device drives the first transmission mechanism 5 such as the screw mechanism to move, specifically, the first driving device drives the screw to rotate, the screw drives the nut and the nut seat to move along the length direction of the screw, the nut seat is fixedly connected to the first supporting portion 32 of the third supporting member 3, and the nut seat drives the third supporting member 3 to move integrally, and similarly, the process of the second driving device driving the carrier member 4 to move through the second transmission mechanism 6 is the same as that described above, and will not be described in detail herein.

Wherein, optionally, the third support member 3 comprises the above-mentioned plate as an integral structure.

In this embodiment, preferably, as shown in fig. 1 to 3, the bearing member 4 includes a main bearing body 41, a first connecting portion 42, a second connecting portion 43, and a third connecting portion 44;

wherein, the first connecting portion 42 is connected to one side of the main carrier 41, and the second connecting portion 43 is connected to the other opposite side of the main carrier 41; the first connecting portion 42 is slidably connected to the first mounting portion 33, and the second connecting portion 43 is slidably connected to the second mounting portion 35; the third connecting portion 44 is connected to the second transmission mechanism 6;

the main carrier 41 is used for supporting the driver, the first connecting portion 42 and the second connecting portion 43 are used for slidably connecting the main carrier 41 to the third support member 3, and the third connecting portion 44 is used for fixedly connecting the main carrier 41 to the second transmission mechanism 6.

Optionally, the main carrier 41 is a flat plate, and one side, i.e., a first side, of the base 31 close to the third support member 3 is provided with a folded edge facing away from the first support member 1, the other opposite side, i.e., a second side, of the base 31 is also provided with a folded edge facing away from the first support member 1, and the other two sides, i.e., the third side and the fourth side, of the flat plate are not folded.

The first connecting portion 42 is a T-shaped plate, the outer surface of the transverse plate 421 of the T-shaped plate is attached to and connected with the third side edge of the main carrier 41, and the side surface of the longitudinal plate 422 of the T-shaped plate is slidably connected with the first mounting portion 33 of the third supporting member 3 by the sliding rail 8 and the sliding block 9, but other slidably connected structures may also be adopted. The second connecting portion 43 has the same structure as the first connecting portion 42, and is symmetrically disposed with respect to the carrier member 4, and will not be described in detail here.

The third connecting portion 44 is a rectangular plate and is fixedly connected to the nut seat of the second transmission mechanism 6 (the second transmission mechanism 6 has the same structure as the first transmission mechanism 5, and the difference is that one end of the lead screw is rotatably connected to one end, i.e., the upper end, of the base body 31 of the third support member 3 through a bearing seat, the other end of the lead screw is rotatably connected to the other end, i.e., the lower end, of the base body 31 of the third support member 3 through a bearing seat, and the nut seat of the second transmission mechanism 6 is connected to the third connecting portion 44 of the support member 4).

Alternatively, the main carrier 41, the first connecting portion 42, the second connecting portion 43, and the third connecting portion 44 may be separate members and connected by welding or fastening.

In this embodiment, preferably, as shown in fig. 1 to 3, the first driving device and the second driving device are both hydraulic motors; the driving mechanism 7 is a hydraulic cylinder;

the automatic boarding system further comprises a hydraulic supply device arranged on the vehicle body, particularly can be arranged at the bottom of the whole vehicle body, the hydraulic supply device is respectively connected with the first driving device, the second driving device and the driving mechanism 7, a first hydraulic control valve is arranged between the hydraulic supply device and the first driving device, a second hydraulic control valve is arranged between the hydraulic supply device and the second driving device, and a third hydraulic control valve is arranged between the hydraulic supply device and the driving mechanism 7.

According to the above-described structure, 3 hydraulic control valves are respectively used to control whether hydraulic oil is supplied to the first driving device, i.e., the hydraulic motor, the second driving device, i.e., the hydraulic motor, and the driving mechanism 7, i.e., the hydraulic cylinder, so that the devices are opened to start operation or closed to stop operation.

The automatic boarding system also comprises a control device and a switch arranged on the vehicle body, and optionally, the switch is arranged on an armrest outside the cab; wherein, controlling means is connected with switch and above-mentioned 3 hydraulic control valves respectively.

When getting on the bus, the driver waits and can press the switch with the hand at subaerial, utilizes switch start control device, and controlling means opens according to the order at the above-mentioned hydraulic control valve of control for load-bearing member 4 descends to the suitable distance department apart from ground, and the driver steps on the footboard, then realizes driver's automation operation of getting on the bus, and whole process is simple, convenient, and is more intelligent, after the end of getting on the bus, can close the switch. When getting off, the driver walks out of the cab and presses the switch again, the control device controls the hydraulic control valves to be opened in sequence, so that the bearing member 4 rises to a position with a proper distance from the ground of the cab, the driver steps on the pedal, then the automatic getting-off operation of the driver is realized, the operation is simple and convenient, and after the getting-off operation is finished, the switch can be closed. Optionally, the number of the switches is two, one of the switches is used as an entry switch, the other switch is used as an exit switch, and the position of the exit switch is higher than that of the entry switch.

In this embodiment, preferably, as shown in fig. 1 to 3, the automatic loading system further includes a gravity sensor and a position sensor, both of which are disposed on the carrying member 4, and both of which are connected to the control device.

The position sensor is mainly used for sensing the distance between the pedal and the ground or the ground of the cab, and the gravity sensor is mainly used for sensing whether the driver is on the main bearing body 41 of the bearing member 4, for example, whether the driver stands on the main bearing body 41 of the bearing member 4 or whether the driver leaves from the main bearing body 41 or the like can be sensed. Due to the arrangement of the sensor, the system is safer and more reliable in working, and the safety of a driver in getting on or off the vehicle is further ensured. The number of the gravity sensors and the number of the position sensors can be multiple, and the gravity sensors and the position sensors are arranged according to actual needs.

In summary, the working steps of the automatic boarding system are as follows:

in the first step, the whole system is suspended outside and at the bottom of the cab, i.e. the system is in the initial state a.

Secondly, when getting on the vehicle, the switch is pressed down, the control device receives a signal and controls a third hydraulic control valve corresponding to the driving mechanism 7 to be opened, the driving mechanism 7 such as a hydraulic cylinder works to push the second supporting member 2 and the first driving device, the first transmission mechanism 5, the second driving device, the second transmission mechanism 6, the third supporting member 3 and the bearing member 4 arranged on the second supporting member 2 to swing to a specified position from the position close to the vehicle body to the position far away from the vehicle body, at the moment, the position sensor has a signal and transmits the signal to the control device, the control device controls the third hydraulic control valve to be closed, and the driving mechanism 7 stops working;

the control device controls a first hydraulic control valve corresponding to the first driving device to be opened, the first driving device such as a hydraulic motor works, the first driving device drives a first transmission mechanism 5 such as a lead screw transmission mechanism to start working, the lead screw transmission mechanism drives a third supporting member 3 and a second driving device, a second transmission mechanism 6 and a bearing member 4 which are arranged on the third supporting member 3 to move and descend along a first direction relative to a second supporting member 2 and descend to a specified position, the position sensor has a signal at the moment and transmits the signal to the control device, the control device controls the first hydraulic control valve to be closed, and the first driving device stops working;

the control device controls a second hydraulic control valve corresponding to a second driving device to be opened, the second driving device is used for example for a hydraulic motor to work, the second driving device drives a second transmission mechanism 6 such as a lead screw transmission mechanism to start working, the second transmission mechanism 6 drives the bearing member 4 to move along the first direction relative to the third supporting member 3 and descend to a specified position, for example, the bearing member 4 descends to a position which is about 250mm away from the ground, the position sensor has a signal and transmits the signal to the control device, the control device controls the corresponding second hydraulic control valve to be closed after receiving the signal, the second driving device such as the hydraulic motor stops working, and the system is in a state B.

Thirdly, the driver walks up the bearing member 4, the gravity sensor has a signal and transmits the signal to the control device, the control device controls the hydraulic control valve corresponding to the first driving device to be opened, the first driving device, such as a hydraulic motor, works, the first driving device drives the first transmission mechanism 5, such as a lead screw transmission mechanism, to start working, the lead screw transmission mechanism drives the third supporting member 3, the second driving device arranged on the third supporting member 3, the second transmission mechanism 6 and the bearing member 4 to move and rise along the first direction relative to the second supporting member 2, and then the signals are sensed by the sensor and transmitted to the control device, the control device controls the corresponding first hydraulic control valve to be closed, and the first driving device, such as the hydraulic motor, stops working;

the control device controls a second hydraulic control valve corresponding to a second driving device to open, the second driving device works as a hydraulic motor, the second driving device drives a second transmission mechanism 6 such as a lead screw transmission mechanism to start working, the second transmission mechanism 6 drives the bearing member 4 to move along the first direction relative to the third supporting member 3 and ascend to a specified position, for example, the bearing member 4 ascends to a position about 250mm away from the ground of the cab, the sensor senses a signal and transmits the signal to the control device, the control device controls the corresponding second hydraulic control valve to close, the second driving device such as the hydraulic motor stops working, and the system is in a state C.

Of course, the two steps in the third step may be reversed, that is, the second driving device drives the carrying member 4 to ascend to the designated position through the second transmission mechanism 6, and then the first driving device drives the third supporting member 3 and other components arranged thereon to ascend to the designated position through the first transmission mechanism 5.

And fourthly, the driver gets on the vehicle from the bearing member 4, the gravity sensor has no signal, the control device controls a third hydraulic control valve corresponding to a driving mechanism 7 to be opened, the driving mechanism 7 such as a hydraulic cylinder retracts a cylinder rod, and the second supporting member 2 and other components arranged on the second supporting member 2 are driven to retract to the original position, namely the system returns to the initial state A.

Example two

The embodiment of the present application provides an automatic boarding system, which is some improvements on the first embodiment, and for easy understanding, reference numerals in the first embodiment may be adopted, and as shown in fig. 1 to 3, the automatic boarding system is used for an excavator, the excavator includes a vehicle body, and the automatic boarding system includes: a first support member 1, a second support member 2, a third support member 3, a carrier member 4, a first drive device, a first transmission mechanism 5, and a drive mechanism 7;

wherein, the first supporting member 1 is fixed on the body of the excavator; the second support member 2 is rotatably connected to the first support member 1 via a rotating shaft, but is not limited thereto; the driving mechanism 7 is arranged on the body of the excavator, the driving mechanism 7 can be arranged under the cab, in particular, and the driving mechanism 7 is connected with the second supporting member 2 and is used for driving the second supporting member 2 and the first driving device, the first transmission mechanism 5, the third supporting member 3 and the bearing member 4 which are arranged on the second supporting member 2 to rotate relative to the first supporting member 1 and the body of the excavator, wherein, the second supporting member 2 and all parts arranged on the second supporting member 2 are arranged outside the cab;

the first driving device drives the third supporting member 3 and the bearing member 4 arranged on the third supporting member 3 to move along a first direction relative to the second supporting member 2 through the first transmission mechanism 5, wherein the first direction is a direction forming an included angle with the vertical direction, and the bearing member 4 is fixedly connected with the third supporting member 3 and moves as a whole.

It can be seen that the system can drive the second support member 2 and the first driving device, the first transmission mechanism 5, the third support member 3 and the carrying member 4 arranged on the second support member 2 to rotate to a specified position relative to the first support member 1 and the body of the excavator through the driving mechanism 7, and then drive the third support member 3 and the carrying member 4 arranged on the third support member 3 to move along the first direction relative to the second support member 2 through the first transmission mechanism 5 by using the first driving device, so that a driver and the like on the carrying member 4 can ascend or descend, and the operation of getting on or off the excavator can be completed.

EXAMPLE III

The embodiment of the application provides an automatic system of getting on bus, is some improvements on embodiment basis, and this automatic system of getting on bus is used for the excavator, and the excavator includes the automobile body, and automatic system of getting on bus includes: the bearing assembly and the driving assembly are arranged on the vehicle body;

therefore, the system can drive the bearing assembly to move relative to the vehicle body through the driving assembly, and can realize the ascending or descending of a driver and the like on the bearing assembly.

Wherein, drive assembly can be two cylinders, and two cylinders all set firmly in the automobile body, and load-bearing component can be for bearing the weight of the flat board, and the end connection of the jar pole of two cylinders is in bearing the weight of the flat board, along with the flexible of cylinder, realizes bearing the removal of flat board.

Of course, not only the above structure is not limited, the driving assembly may further include a driving device and a screw structure, the driving device is fixedly disposed on the vehicle body, and the driving device drives the bearing plate to move relative to the vehicle body through the screw structure.

Example four

An embodiment of the present application further provides an excavator, including the automatic boarding system according to any of the above embodiments, so that all beneficial technical effects of the automatic boarding system are achieved, and details are not repeated herein.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic loading system for an excavator, the excavator comprising a body, comprising: the bearing assembly and the driving assembly are arranged on the vehicle body;

2. The automatic boarding system of claim 1, further comprising a first support member, a second support member, and a drive mechanism;

3. The automatic loading system of claim 2, wherein the carrier assembly includes a third support member and a carrier member;

4. The automatic boarding system of claim 3, wherein the first support member comprises a main support body, a first connection section, and a second connection section;

5. The automatic boarding system of claim 4, wherein the second support member comprises a first support housing and a second support housing;

6. The automatic boarding system of claim 5, wherein the third support member comprises a base, a first support portion, a first mounting portion, a second support portion, and a second mounting portion; the first supporting part is connected with one side of the base body, and the second supporting part is connected with the other opposite side of the base body; the first mounting part is connected with one side of the first supporting part, which is far away from the base body, and the second mounting part is connected with one side of the second supporting part, which is far away from the base body;

7. The automatic boarding system of claim 6, wherein the carrier member comprises a main carrier, a first connection portion, a second connection portion, and a third connection portion;

8. The automatic boarding system of claim 3, wherein the first drive and the second drive are both hydraulic motors; the driving mechanism is a hydraulic cylinder.

9. The automatic boarding system of claim 8, further comprising a hydraulic pressure supply device provided on the vehicle body, the hydraulic pressure supply device being connected to the first drive device, the second drive device, and the drive mechanism, respectively, and hydraulic control valves being provided between the hydraulic pressure supply device and the first drive device, the second drive device, and the drive mechanism.

10. The automatic boarding system of claim 9, further comprising a control device and a switch disposed on the body; wherein the control device is respectively connected with the switch and the hydraulic control valve.

11. The automatic boarding system of claim 10, further comprising a gravity sensor and a position sensor, both disposed on the load-bearing member, and both connected to the control device.

12. The automatic boarding system of any one of claims 3 to 11, wherein the first transmission mechanism and the second transmission mechanism are ball screw mechanisms.

13. An excavator comprising an automatic boarding system according to any one of claims 1 to 12.