CN110905029B - Automatic get-on system and excavator - Google Patents

Automatic get-on system and excavator Download PDF

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Publication number
CN110905029B
CN110905029B CN201911278505.3A CN201911278505A CN110905029B CN 110905029 B CN110905029 B CN 110905029B CN 201911278505 A CN201911278505 A CN 201911278505A CN 110905029 B CN110905029 B CN 110905029B
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CN
China
Prior art keywords
supporting
driving
support
transmission mechanism
supporting member
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Active
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CN201911278505.3A
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Chinese (zh)
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CN110905029A (en
Inventor
金江山
付志伟
李晓波
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Sany Heavy Machinery Ltd
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Sany Heavy Machinery Ltd
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Priority to CN201911278505.3A priority Critical patent/CN110905029B/en
Publication of CN110905029A publication Critical patent/CN110905029A/en
Application granted granted Critical
Publication of CN110905029B publication Critical patent/CN110905029B/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

The application relates to the technical field of additional equipment of an excavator, in particular to an automatic loading system and an excavator, which are used for the excavator, wherein the excavator comprises a vehicle body, and the automatic loading system comprises the following components: the bearing assembly and the driving assembly are arranged on the vehicle body; the bearing assembly is used for bearing people or articles, and the driving assembly is used for driving the bearing assembly to move relative to the vehicle body so as to enable the people or articles arranged on the bearing assembly to ascend or descend. The system can realize the easy getting-on of the driver, avoids climbing and ensures safety.

Description

Automatic get-on system and excavator
Technical Field
The application relates to the technical field of additional equipment of an excavator, in particular to an automatic boarding system and the excavator.
Background
At present, particularly in large-scale excavators, the distance from a crawler belt to a cab of the large-scale excavators is large, a driver has a 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 driver can be scratched due to the fact that the driver steps on the outer wall of the cab.
Disclosure of Invention
The application aims to provide an automatic boarding system and an excavator, which solve the technical problems that a driver of the excavator is difficult to board and is easy to step on the excavator to be injured in the prior art to a certain extent.
The application provides an automatic loading system, which is used for an excavator, wherein the excavator comprises an excavator body; the automatic boarding system comprises: the bearing assembly and the driving assembly are arranged on the vehicle body;
The bearing assembly is used for bearing people or articles, and the driving assembly is used for driving the bearing assembly to move relative to the vehicle body so as to enable the people or articles arranged on the bearing assembly to ascend or descend.
In the above technical solution, further, the automatic boarding system further includes a first supporting member, a second supporting member, and a driving mechanism;
Wherein the first support member is disposed on a body of the excavator; the second supporting member is rotatably connected with the first supporting member; the driving mechanism is arranged on the body of the excavator and connected with the second supporting member, and is used for driving the second supporting member, and the driving assembly and the bearing assembly arranged on the second supporting member rotate relative to the first supporting member and the body of the excavator.
In any of the foregoing solutions, further, the bearing assembly includes a third support 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 can drive the third supporting member and the second driving device, the second transmission mechanism and the bearing member which are arranged on the third supporting member to move along a first direction relative to the second supporting member through the first transmission mechanism; 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 one of the above solutions, further, the first supporting member includes a main supporting body, a first connecting portion, and a second connecting portion;
Wherein the first connecting part is connected with one end of the main support body, and the second connecting part is connected with the opposite other end of the main support body;
the main support body is connected with the vehicle body; the first connecting part and the second connecting part are both in rotary connection with the second supporting member.
In any one 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 rotationally 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 shell and the second support shell, and the third support member is arranged in the installation space;
openings are formed in one side, opposite to the second support shell, of the first support 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 matching way are arranged in the first supporting shell, and one of the first transmission mechanisms which are arranged in a matching way penetrates through an opening of the first supporting shell and is connected to one side of the third supporting member; the other first driving device and the other first transmission mechanism which is arranged in a matching way are arranged in the second supporting shell, and the other first transmission mechanism which is arranged in a matching way penetrates through the opening of the second supporting shell and is connected to the opposite side of the third supporting component.
In any one of the above embodiments, further, the third supporting member includes a base, a first supporting portion, a first mounting portion, a second supporting 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 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 surrounded to form 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 member is arranged in the accommodating space.
In any of the above aspects, further, the carrier member includes a main carrier, a first connection portion, a second connection portion, and a third connection portion;
Wherein the first connection part is connected with one side of the main carrier, and the second connection part is connected with the other opposite side of the main carrier; the first connecting part is in sliding connection with the first mounting part, and the second connecting part is in sliding connection with the second mounting part; the third connecting portion is connected to the second transmission mechanism.
In any of the above technical solutions, further, 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, further, the automatic boarding system further includes a hydraulic supply device disposed on the body, the hydraulic supply device is respectively connected with the first driving device, the second driving device and the driving mechanism, and hydraulic control valves are disposed between the hydraulic supply device and the first driving device, between the hydraulic supply device and the second driving device, and between the hydraulic supply device and the driving mechanism.
In any of the above solutions, further, the automatic boarding system further includes a control device and a switch disposed on the body; wherein the control device is connected with the switch and the hydraulic control valve respectively.
In any of the above technical solutions, further, the automatic boarding 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 with the control device.
In any of the above embodiments, 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 one of the technical schemes, so that the excavator has all the beneficial technical effects of the automatic boarding system, and the description is omitted here.
Compared with the prior art, the application has the beneficial effects that:
According to the automatic boarding system provided by the application, the driving mechanism is used for driving the bearing assembly to move relative to the car body, so that drivers and the like arranged on the bearing member can ascend or descend, and further, the drivers can easily get on the car, climbing is avoided, the risk of accidental injury is avoided, and further, the safety of the drivers is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a part of a structure of an automatic boarding system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another part of an automatic boarding system according to an embodiment of the present application;
Fig. 3 is a schematic structural diagram of another part of the automatic boarding system according to the embodiment of the present application.
Reference numerals:
1-first supporting member, 11-main supporting body, 12-first connecting portion, 13-second connecting portion, 2-second supporting member, 21-first supporting housing, 211-first connecting lug plate, 22-second supporting housing, 221-second connecting lug plate, 3-third supporting member, 31-base body, 32-first supporting portion, 33-first mounting portion, 34-second supporting portion, 35-second mounting portion, 4-bearing member, 41-main bearing body, 42-first connecting portion, 421-transverse plate, 422-longitudinal plate, 43-second connecting portion, 44-third connecting portion, 5-first transmission mechanism, 6-second transmission mechanism, 7-driving mechanism, 8-slide rail, 9-slide block.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown.
The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific 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 should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
An automatic boarding system and an excavator according to some embodiments of the present application are described below with reference to fig. 1 to 3.
Example 1
Referring to fig. 1 to 3, an embodiment of the present application provides an automatic boarding system for an excavator, the excavator including a vehicle body including a cab, the automatic boarding 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 support 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 (for example, by a pin), but of course, not limited thereto; the driving mechanism 7 is arranged on the body of the excavator, the driving mechanism 7 can be arranged below 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 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, note that the second supporting member 2 and each part 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 mechanism 6 also in the first direction relative to the third support member 3.
The automatic boarding system provided in this embodiment works:
(1) The whole system is hung outside a cab and is not started to work, namely, the system is in an initial A state at the moment;
(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 which are arranged on the second supporting member 2 swing to a designated position from approaching the vehicle body to separating from the vehicle body, and after the members 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 bearing member 4 arranged on the third supporting member 3 move and descend along the first direction relative to the second supporting member 2 and descend to a designated position, and after the members are in place, the first driving device stops working;
The second driving device drives the bearing member 4 to move and descend to a designated position along the first direction relative to the third supporting member 3 through the second transmission mechanism 6, for example, the bearing member 4 descends to a position about 250mm away from the ground, at the moment, the second driving device stops working, and at the moment, the system is in a B state;
(3) The driver walks up the bearing member 4, 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 and ascend along the first direction relative to the second supporting member 2 and ascend to a designated position, and the first driving device stops working; then, the second driving device drives the carrying member 4 to move and rise to a designated position along the first direction relative to the third supporting member 3 through the second transmission mechanism 6, for example, the carrying member 4 rises to a position about 250mm away from the ground of the cab, and the second driving device stops working, and the system is in a C state.
Note here that when the driver walks up the carrier member 4, the second driving means drives the carrier member 4 to move up to a specified position in the first direction relative to the third support member 3 via the second transmission mechanism 6, the second driving means stops operating, after which the first driving means drives the third support member 3 and the second driving means provided on the third support member 3, the second transmission mechanism 6 and the carrier member 4 to move up to the first direction relative to the second support member 2 via the first transmission mechanism 5, and to rise up to a specified position, for example, the carrier member 4 to a position of about 250mm from the floor of the cab, and the first driving means stops operating.
(4) The driver gets on the vehicle from the carrying member 4, i.e. walks into the cab, 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 arranged on the second supporting member 2, the third supporting member 3 and the carrying member 4 swing from being far away from the vehicle body to being close to the vehicle body to a designated position, and then the driving mechanism 7 stops working, i.e. the system returns to the initial state A.
When the driver needs to get off the vehicle, the system is firstly adjusted to the C state, the driver steps on the bearing member 4, the system is adjusted to the B state, the driver gets off the vehicle, and then the system returns to the initial A state again, and the specific process can refer to the process.
Therefore, the automatic boarding system realizes the easy boarding of the driver, avoids climbing, further avoids the risk of accidental injury, and further ensures the safety of the driver.
In this embodiment, preferably, as shown in fig. 1 to 3, the first support member 1 includes a main support body 11, a first connection portion 12, and a second connection portion 13;
Wherein the first connection part 12 is connected with one end of the main support 11, and the second connection part 13 is connected with the opposite end of the main support 11, alternatively, the main support 11, the first connection part 12 and the second connection part 13 may be in an integrated structure, but not limited thereto, and the plates may be connected by welding or fastening connection;
The main support body 11 is connected with the vehicle body; the first connection portion 12 and the second connection 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, alternatively, the first support housing 21 and the second support housing 22 are each rectangular housings and parallel to each other, and the first support housing 21 and the second support housing 22 are symmetrically disposed with respect to the first support member 1;
the first support housing 21 is located at one side of the first connection portion 12 and is rotationally connected to the first connection portion 12, specifically, one end of the first support housing 21 extends out of the first connection ear plate 211, and the first connection ear plate 211 is rotationally connected to the first connection portion 12 of the first support member 1 (for example, the first connection ear plate is rotationally connected by a pin shaft); 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, one end of the second support housing 22 extends out of the second connection ear plate 221, 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; a mounting 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 mounting space;
the opposite sides of the first support housing 21 and the second support housing 22 are provided with openings;
The number of the first driving devices and the first transmission mechanisms 5 are two, one of the first driving devices and one first transmission mechanism 5 which is arranged in a matched manner are arranged in the first support shell 21, and one first transmission mechanism 5 which is arranged in a matched manner penetrates through an opening of the first support shell 21 and is connected to one side of the third support member 3; wherein the other first driving device and the other first transmission mechanism 5 which is matched with the other first driving device are arranged in the second supporting shell 22, and the other first transmission mechanism 5 which is matched with the other first transmission mechanism is connected to the opposite side of the third supporting component 3 through the opening of the second supporting shell 22.
As can be seen from the above 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 bearing 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 comprises 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 rotationally connected with one end, especially the upper end, of the first support housing 21 through a bearing seat, the other end of the screw rod is rotationally connected with the other end, especially the lower end, of the first support housing 21 through the bearing seat, and the first support housing 21 plays a role of supporting the screw rod; the nut seat 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 support portion 32 is connected to one side of the base 31, and the second support portion 34 is connected to the opposite side of the base 31; the first mounting portion 33 is connected to a side of the first supporting portion 32 away from the base 31, and the second mounting portion 35 is connected to a side of the second supporting portion 34 away from the base 31;
the first supporting part 32 is connected to one of the first transmission mechanisms 5, and the second supporting part 34 is connected to the other one of the first transmission mechanisms 5;
The first mounting part 33, the first supporting part 32 and the base body 31 are surrounded to form 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 accommodation space therebetween in which the carrier member 4 is disposed.
As can be seen from the above-described 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 opening 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 integrally move, and similarly, the process of driving the bearing member 4 by the second driving device 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 a unitary structure.
In this embodiment, preferably, as shown in fig. 1 to 3, the carrier member 4 includes a main carrier 41, a first connection portion 42, a second connection portion 43, and a third connection portion 44;
Wherein the first connection part 42 is connected to one side of the main carrier 41, and the second connection part 43 is connected to the 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 carrying a 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.
Wherein, optionally, the main carrier 41 is a flat plate, and one side edge, i.e. the first side edge, of the base body 31 close to the third support member 3 is provided with a folded edge facing away from the first support member 1, the opposite other side edge, i.e. the second side edge, of the base body 31 is also provided with a folded edge facing away from the first support member 1, and the remaining two sides, i.e. the third side edge and the fourth side edge, 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 support member 3 by the slide rail 8 and the slider 9, however, other slidably connected structures may be adopted. The second connection portion 43 has the same structure as the first connection portion 42 and is provided symmetrically with respect to the carrier member 4, and will not be described in detail here.
The third connecting portion 44 is a rectangular plate 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, except that one end of the screw is rotatably connected to one end, i.e., the upper end, of the base body 31 of the third support member 3 via a bearing housing, and the other end of the screw is rotatably connected to the other end, particularly the lower end, of the base body 31 of the third support member 3 via a bearing housing, and the nut seat of the second transmission mechanism 6 is connected to the third connecting portion 44 of the carrying member 4).
Wherein, alternatively, the main carrier 41, the first connection portion 42, the second connection portion 43 and the third connection portion 44 are separate components and are connected by welding or fastening connection.
In this embodiment, preferably, as shown in fig. 1 to 3, the first driving means and the second driving means are both hydraulic motors; the driving mechanism 7 is a hydraulic cylinder;
The automatic loading system further comprises a hydraulic supply device arranged on the vehicle body, particularly the automatic loading system 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, the 3 hydraulic control valves are respectively used to control whether the 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 the operation or the devices are closed to stop the operation.
The automatic boarding system also comprises a control device and a switch arranged on the car body, and optionally, the switch is arranged on an armrest outside the cab; the control device is respectively connected with the switch and the 3 hydraulic control valves.
When the vehicle is on, a driver can stand on the ground and can press the switch by hand, the control device is started by using the switch, and the control device is used for controlling the hydraulic control valves to be sequentially opened, so that the bearing member 4 descends to a proper distance away from the ground, the driver steps on the pedal, then the automatic vehicle-loading operation of the driver is realized, the whole process is simple and convenient, the device is more intelligent, and the switch can be closed after the vehicle is on. When the driver gets off the vehicle, the driver walks out of the cab and presses the switch again, the control device controls the hydraulic control valves to be sequentially opened, so that the bearing member 4 rises to a proper distance away 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 the switch can be closed after the getting-off is finished. Wherein, optionally, the quantity of switch is two, and one is used as the switch of getting on the bus, and another is used as the switch of getting off the bus, and the position of switch of getting off the bus is higher than the switch of getting on the bus.
In this embodiment, preferably, as shown in fig. 1 to 3, the automatic boarding system further includes a gravity sensor and a position sensor, both of which are provided on the carrier 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 a driver is on the main carrier 41 of the bearing member 4, for example, whether the driver is standing on the main carrier 41 of the bearing member 4, whether the driver is separated from the main carrier 41, and the like. Due to the arrangement of the sensor, the system is safer and more reliable in working, and further the safety of drivers in getting on and off the vehicle is ensured. The number of the gravity sensors and the position sensors can be multiple, and the gravity sensors and the position sensors can be set according to actual needs.
In summary, the working steps of the automatic boarding system are as follows:
in a first step, the whole system is suspended outside and at the bottom of the cab, i.e. the system is in an initial a-state at this time.
A second step, when the vehicle is on, 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 designated position from approaching to the vehicle body to being far 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 further 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 screw transmission mechanism to start working, the screw transmission mechanism drives a third supporting member 3 and a second driving device, a second transmission mechanism 6 and a bearing member 4 arranged on the third supporting member 3 to move downwards along a first direction relative to the second supporting member 2 and descend to a designated position, at the moment, a position sensor has a signal 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 the second hydraulic control valve corresponding to the second driving device to be opened, the second driving device such as a hydraulic motor works, the second driving device drives the second transmission mechanism 6 such as a screw transmission mechanism to start working, the second transmission mechanism 6 drives the bearing member 4 to move and descend to a designated position along the first direction relative to the third supporting member 3, for example, the bearing member 4 descends to a position about 250mm away from the ground, at the moment, the position sensor has a signal and transmits the signal to the control device, the control device receives the signal and then controls the corresponding second hydraulic control valve to be closed, and the second driving device such as the hydraulic motor stops working, at the moment, the system is in the B state.
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 screw transmission mechanism to start working, the screw transmission mechanism drives the third supporting member 3 and the second driving device, the second transmission mechanism 6 and the bearing member 4 arranged on the third supporting member 3 to move and ascend along the first direction relative to the second supporting member 2 to the designated position, the sensor senses the signal at the moment and transmits the signal to the control device, and 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 then controls the second hydraulic control valve corresponding to the second driving device, such as a hydraulic motor, to open, the second driving device drives the second transmission mechanism 6, such as a 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 the bearing member 4 rises to a designated position, such as a position about 250mm away from the ground of the cab, at which time the sensor senses a signal and transmits the signal to the control device, and the control device controls the corresponding second hydraulic control valve to close, and the second driving device, such as the hydraulic motor, stops working, at which time 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 rise to a 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 rise 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 the third hydraulic control valve corresponding to the driving mechanism 7 to be opened, the driving mechanism 7, such as a hydraulic cylinder, withdraws the cylinder rod to drive the second supporting member 2 and the rest parts arranged on the second supporting member 2 to be withdrawn to the original position, namely, the system returns to the initial A state.
When the driver needs to get off the vehicle, the system is firstly adjusted to the C state, the driver steps on the bearing member 4, the system is adjusted to the B state, the driver gets off the vehicle, and then the system returns to the initial A state again, and the specific process can refer to the process.
Example two
An embodiment of the present application provides an automatic loading system, which is some improvement on the basis of the first embodiment, for convenience of understanding, the reference numerals in the first embodiment may be adopted, and also referring to fig. 1 to 3, the automatic loading system is used for an excavator, the excavator includes a vehicle body, and the automatic loading system includes: a first support member 1, a second support member 2, a third support member 3, a carrier member 4, a first drive means, a first transmission mechanism 5 and a drive mechanism 7;
wherein the first support member 1 is fixed to the body of the excavator; the second support member 2 is rotatably connected to the first support member 1 through a rotation shaft, of course, not limited thereto; the driving mechanism 7 is arranged on the body of the excavator, the driving mechanism 7 can be arranged below 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 arranged on the second supporting member 2 to rotate relative to the first supporting member 1 and the body of the excavator, and note that the second supporting member 2 and each part 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 to move as a whole.
It can be seen that the present 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 disposed on the second support member 2 to rotate to a designated position relative to the first support member 1 and the body of the excavator by the driving mechanism 7, and then drive the third support member 3 and the carrying member 4 disposed on the third support member 3 to move along the first direction relative to the second support member 2 by the first driving device through the first transmission mechanism 5, so as to enable the driver disposed on the carrying member 4 to ascend or descend, thereby completing the operation of getting on or off the vehicle.
Example III
The embodiment of the application provides an automatic loading system, which is some improvement on the basis of the first embodiment, is used for an excavator, and comprises a vehicle body, wherein the automatic loading system comprises: 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 enable drivers and the like arranged on the bearing assembly to ascend or descend.
The driving assembly can be two cylinders, the two cylinders are fixedly arranged on the vehicle body, the bearing assembly can be a bearing flat plate, the end parts of the cylinder rods of the two cylinders are connected to the bearing flat plate, and the bearing flat plate is moved along with the expansion and contraction of the cylinders.
Of course, not only is the structure limited, but the driving assembly can also comprise a driving device and a screw rod structure, wherein the driving device is fixedly arranged on the vehicle body, and the driving device drives the bearing flat plate to move relative to the vehicle body through the screw rod structure.
Example IV
The embodiment of the application also provides an excavator, which comprises the automatic boarding system described in any embodiment, so that the excavator has all the beneficial technical effects of the automatic boarding system, and the description is omitted here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (12)

1. An automatic loading system for an excavator, the excavator comprising a body, comprising: a bearing assembly, a driving assembly, a first supporting member, a second supporting member and a driving mechanism which are arranged on the vehicle body;
the driving assembly is used for driving the bearing assembly to move relative to the vehicle body so as to enable the person or the article placed on the bearing assembly to ascend or descend;
Wherein the first support member is disposed on a body of the excavator; the second supporting member is rotatably connected with the first supporting member; the driving mechanism is arranged on the body of the excavator and connected with the second supporting member, and is used for driving the second supporting member, and the driving assembly and the bearing assembly arranged on the second supporting member rotate relative to the first supporting member and the body of the excavator.
2. The automated boarding system of claim 1, wherein the load bearing assembly comprises a third support member and a load 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 can drive the third supporting member and the second driving device, the second transmission mechanism and the bearing member which are arranged on the third supporting member to move along a first direction relative to the second supporting member through the first transmission mechanism; 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.
3. The automated boarding system of claim 2, wherein the first support member comprises a main support body, a first connection, and a second connection;
Wherein the first connecting part is connected with one end of the main support body, and the second connecting part is connected with the opposite other end of the main support body;
the main support body is connected with the vehicle body; the first connecting part and the second connecting part are both in rotary connection with the second supporting member.
4. The automated get-on system of claim 3, wherein the second support member comprises 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 rotationally 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 shell and the second support shell, and the third support member is arranged in the installation space;
openings are formed in one side, opposite to the second support shell, of the first support 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 matching way are arranged in the first supporting shell, and one of the first transmission mechanisms which are arranged in a matching way penetrates through an opening of the first supporting shell and is connected to one side of the third supporting member; the other first driving device and the other first transmission mechanism which is arranged in a matching way are arranged in the second supporting shell, and the other first transmission mechanism which is arranged in a matching way penetrates through the opening of the second supporting shell and is connected to the opposite side of the third supporting component.
5. The automated get-on system of claim 4, wherein the third support member comprises a base, a first support, a first mount, a second support, and a second mount; the first supporting part is connected with one side of the base body, and the second supporting part is connected with the 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 surrounded to form 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 member is arranged in the accommodating space.
6. The automated boarding system of claim 5, wherein the load bearing member comprises a main carrier, a first connection, a second connection, and a third connection;
Wherein the first connection part is connected with one side of the main carrier, and the second connection part is connected with the other opposite side of the main carrier; the first connecting part is in sliding connection with the first mounting part, and the second connecting part is in sliding connection with the second mounting part; the third connecting portion is connected to the second transmission mechanism.
7. The automated boarding system of claim 2, wherein the first drive and the second drive are both hydraulic motors; the driving mechanism is a hydraulic cylinder.
8. The automated get-on system of claim 7, further comprising a hydraulic supply device disposed on the vehicle body, the hydraulic supply device being respectively connected to the first drive device, the second drive device, and the drive mechanism, and hydraulic control valves being disposed between the hydraulic supply device and each of the first drive device, the second drive device, and the drive mechanism.
9. The automated get-on system of claim 8, further comprising a control device and a switch disposed on the vehicle body; wherein the control device is connected with the switch and the hydraulic control valve respectively.
10. The automated get-on system of claim 9, further comprising a gravity sensor and a position sensor, wherein the gravity sensor and the position sensor are both disposed on the load bearing member, and wherein the gravity sensor and the position sensor are both coupled to the control device.
11. The automated get-on system according to any one of claims 2 to 10, wherein the first transmission mechanism and the second transmission mechanism are ball screw mechanisms.
12. An excavator comprising an automatic boarding system of any one of claims 1 to 11.
CN201911278505.3A 2019-12-12 2019-12-12 Automatic get-on system and excavator Active CN110905029B (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08132967A (en) * 1994-11-08 1996-05-28 Nissan Diesel Motor Co Ltd Step device for getting on and off vehicle
JPH10287181A (en) * 1997-04-18 1998-10-27 Kyokuto Kaihatsu Kogyo Co Ltd Step device for getting on/off of vehicle
JP3157143B1 (en) * 2000-03-01 2001-04-16 忠則 松田 Vehicle lifting device
JP2006312392A (en) * 2005-05-09 2006-11-16 Daito Press Kogyo Kk Getting-on/off step device for vehicle
CN103429826A (en) * 2012-03-30 2013-12-04 株式会社小松制作所 Cab
CN205737254U (en) * 2016-06-26 2016-11-30 佛山市飞驰汽车制造有限公司 Accessible device by bus
CN211472672U (en) * 2019-12-12 2020-09-11 三一重机有限公司 Automatic getting-on system and excavator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08132967A (en) * 1994-11-08 1996-05-28 Nissan Diesel Motor Co Ltd Step device for getting on and off vehicle
JPH10287181A (en) * 1997-04-18 1998-10-27 Kyokuto Kaihatsu Kogyo Co Ltd Step device for getting on/off of vehicle
JP3157143B1 (en) * 2000-03-01 2001-04-16 忠則 松田 Vehicle lifting device
JP2006312392A (en) * 2005-05-09 2006-11-16 Daito Press Kogyo Kk Getting-on/off step device for vehicle
CN103429826A (en) * 2012-03-30 2013-12-04 株式会社小松制作所 Cab
CN205737254U (en) * 2016-06-26 2016-11-30 佛山市飞驰汽车制造有限公司 Accessible device by bus
CN211472672U (en) * 2019-12-12 2020-09-11 三一重机有限公司 Automatic getting-on system and excavator

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