CN215904618U - Vertical stability driver's cabin and initiative shock-absorbing structure - Google Patents
Vertical stability driver's cabin and initiative shock-absorbing structure Download PDFInfo
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- CN215904618U CN215904618U CN202120969196.0U CN202120969196U CN215904618U CN 215904618 U CN215904618 U CN 215904618U CN 202120969196 U CN202120969196 U CN 202120969196U CN 215904618 U CN215904618 U CN 215904618U
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Abstract
The utility model relates to the technical field of engineering machinery, and particularly discloses a vertical stability cab and an active damping structure, wherein the cab comprises a cab assembly, a swing arm, an installation platform, a first direct drive motor, a second direct drive motor, a gyroscope sensor and a central controller, the gyroscope sensor installed at the bottom of the cab assembly can sense acceleration change data of the cab assembly in real time and transmit the acceleration change data to the central controller through an input signal line, the central controller generates deflection signal data of the first direct drive motor and the second direct drive motor by resolving the acceleration data, and the deflection signal data is transmitted to the first direct drive motor and the second direct drive motor through a control signal line so as to deflect the direct drive motors, so that the posture of the cab is adjusted, and the stability of the cab is realized.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, and particularly discloses a vertical stable cab and an active damping structure.
Background
Vertical gyroscopes exist in inertial navigation systems and basic feed systems for various types of aeronautical instruments, to measure the roll angle (roll) and pitch angle (attitude) of the spacecraft. The name of the rotary body is derived from the fact that the design core is a rotary body with a rotating shaft in a vertical direction. The gyroscope is used as an inertia measuring device, is a core component of an inertia navigation, inertia guidance and inertia measuring system, and is widely applied to the military and civil fields.
In the field of engineering machinery, similar excavators, transport trucks and the like are widely used in engineering construction of roads, railways, buildings, ports, mines and the like, and need to work in severe environments frequently, so that excavation or transportation operation is affected by road conditions, and a cab is frequently subjected to impact vibration during driving, so that a driver is very easy to fatigue.
The whole cab of the existing engineering mechanical equipment is in floating connection with the platform through the rubber vibration isolation pad and the elastic damping element, and the bumping load during working is absorbed and buffered through the shock absorber, so that a certain vibration isolation effect is achieved.
However, by adopting the existing cab damping mode, the vibration isolation capability of the damper becomes the key for influencing the size of the impact load of the cab, but the dynamic stiffness of the damper is large, so that the overall vibration isolation effect of the suspension is poor, and although the loads such as vibration impact during working are absorbed by the damper, the bumping load, especially the vertical bumping load, is transmitted to the position of the driver seat, so that the driver is easy to fatigue for long-time operation.
To sum up, this unit research and development personnel utilize the theory of operation of above-mentioned perpendicular gyroscope, use perpendicular gyroscope to engineering machine tool driver's cabin absorbing technical scheme, use perpendicular gyroscope to combine the initiative drive division, the driver's cabin angle vibrations through perpendicular gyroscope real-time measurement deflect, initiative drive division real-time adjustment driver's cabin self gesture, realize that the driver's cabin is at vertical stability, the vibrations that produce engineering machine tool driver's cabin in the course of the work carry out initiative shock attenuation, a problem that the driver's cabin for solving engineering machine tool equipment in the existing market generally can not the shock attenuation or the shock attenuation effect is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cab with vertical stability and an active damping structure, which are used for solving the problems that the cab of the existing engineering mechanical equipment can not be damped or has poor damping effect.
In order to achieve the purpose, the utility model improves the connection structure of the cab and provides the cab with vertical stability, the gyroscope sensor arranged at the bottom of the cab assembly can sense the acceleration change data of the cab assembly in real time and transmits the data to the central controller through an input signal line, the central controller generates deflection signal data of the first direct drive motor and the second direct drive motor by resolving the acceleration data, and the deflection signal data is transmitted to the first direct drive motor and the second direct drive motor through a control signal line so as to deflect the direct drive motors, so that the posture of the cab is adjusted, and the stability of the cab is realized.
Based on the vertical stability cab, the utility model also comprises an active damping structure, wherein the active damping structure is applied to the vertical stability cab and comprises a connecting and supporting part, active driving parts arranged at two ends of the connecting and supporting part, a gyroscope sensor and a central controller.
The driving part and the gyroscope sensor are electrically connected to the central controller, the cab angle vibration deflection is measured in real time according to the vertical gyroscope angle measurement principle, and the driving part adjusts the self posture of the cab in real time, so that the active damping effect is achieved.
The cab assembly is connected to the mounting platform through the connecting and supporting part, and the cab assembly and the mounting platform are respectively and rotatably hinged to two ends of the connecting and supporting part.
According to one embodiment of the utility model, the driving part is arranged at the hinged position of the cab assembly and the connecting support part and at the hinged position of the mounting platform and the connecting support part, the driving part is used for actively adjusting the relative positions among the cab assembly, the mounting platform and the connecting support part, the central controller is mounted in the cab assembly, the gyroscope sensor is mounted at the bottom of the cab assembly, and the driving part and the gyroscope sensor are both electrically connected to the central controller.
In one embodiment of the utility model, the connecting support is configured as a swing arm.
In one embodiment of the present invention, the active drive section includes a first direct drive motor and a second direct drive motor.
According to one embodiment of the utility model, the cab assembly is hinged with the swing arm through a first direct drive motor, and the swing arm is hinged with the mounting platform through a second direct drive motor.
According to one embodiment of the utility model, a bracket at the bottom of the cab assembly is fixedly mounted with a rotor of a first direct drive motor, the front end of a swing arm is fixedly mounted with a stator of the first direct drive motor, the rear end of the swing arm is fixedly mounted with a rotor of a second direct drive motor, and the stator of the second direct drive motor is fixedly mounted with a mounting platform.
In one embodiment of the utility model, the central controller is configured to:
when the angle of the cab assembly relative to the connecting support part and the mounting platform changes, the central controller receives an angle change signal of the gyroscope sensor and controls the running state of the active driving part according to the angle change signal so as to buffer the angle change of the cab assembly.
In conclusion, the beneficial effects of the utility model are as follows:
the gyroscope sensor arranged at the bottom of the cab assembly can sense acceleration change data and cab vibration data of the cab assembly in real time and transmit the acceleration change data and the cab vibration data to the central controller through an input signal line, the central controller generates deflection signal data of the first direct drive motor and the second direct drive motor by resolving the acceleration data and transmits the deflection signal data to the first direct drive motor and the second direct drive motor through a control signal line so as to deflect the direct drive motors, so that the attitude of the cab is adjusted, the adjustment aims to enable engineering mechanical equipment to control the cab to be stabilized to the same height under the working state of complex road conditions, the minimum of up-and-down bumping load transmitted to the cab is realized, the stability of the cab is realized, and on the other hand, the driving part can also control the lifting of the cab within the allowable range of the swing arm, and the visual field of a driver is improved.
Drawings
FIG. 1 is a schematic view of a vertically stable cab structure in one embodiment of the utility model;
FIG. 2 is a schematic diagram of an excavator in one embodiment of the present invention;
FIG. 3 is one of the schematic views of the adjustment structure of the active driving part and the swing arm when the excavator in one embodiment of the utility model runs through a raised road surface;
FIG. 4 is one of the schematic views of the adjustment structure of the active driving part and the swing arm when the excavator in one embodiment of the utility model runs through a raised road surface;
FIG. 5 is a schematic view of an active damping structure according to an embodiment of the present invention
FIG. 6 is a schematic diagram of an active damping structure according to an embodiment of the present invention.
In the figure:
1. a central controller; 2. a cab assembly; 3. an input signal line; 4. a first direct drive motor; 5. a gyroscope sensor; 6. swinging arms; 7. a control signal line; 8. a second direct drive motor; 9. mounting a platform; 10. a chassis.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
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.
The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a vertical stability cab, which comprises a cab assembly 2, a connecting and supporting part and an installation platform 9, wherein the cab assembly 2 is connected to the installation platform 9 through the connecting and supporting part, and the cab assembly 2 and the installation platform 9 are respectively and rotatably hinged at two ends of the connecting and supporting part.
Fig. 1 and 2 illustrate a cab of an excavator, in which a cab assembly 2 is an assembly of an overall external appearance frame of a cab cabin of the excavator and a control unit for controlling the excavator inside the frame, and is used for seating a driver and placing an operation panel of the excavator, the cab assembly 2 is movably fixed on an installation platform 9 through a connection support, and the installation platform 9 is used for installing the cab assembly 2 on an excavator chassis 10.
As shown in fig. 1-2, the joint position of the cab assembly 2 and the connecting support portion and the joint position of the mounting platform 9 and the connecting support portion are provided with active driving portions for actively adjusting the relative positions of the cab assembly 2, the mounting platform 9 and the connecting support portion.
In one embodiment of the utility model, the connection support is provided as a swing arm 6, as shown in fig. 1-2.
The bottom of the cab assembly 2 is pivotably connected to the swing arm 6, and can be specifically realized by means of a connecting structure between the bottom of the cab assembly 2 and the swing arm 6, the bottom of the cab assembly 2 and one end of the swing arm 6 are sampled and hinged to form a connecting structure, and the cab assembly 2 can rotate around a support on a hinged part of the swing arm 6, so that the cab assembly 2 can move more flexibly in the vertical stability adjustment process of the cab.
The mounting platform 9 is also connected with the other end of the swing arm 6 in a hinged manner.
In one embodiment of the present invention, the active driving portion includes a first direct drive motor 4 and a second direct drive motor 8, the cab assembly 2 is hinged to the swing arm 6 through the first direct drive motor 4, and the swing arm 6 is hinged to the mounting platform 9 through the second direct drive motor 8.
The support at the bottom of the cab assembly 2 is fixedly installed with a rotor of the first direct drive motor 4, the front end of the swing arm 6 is fixedly installed with a stator of the first direct drive motor 4, the rear end of the swing arm 6 is fixedly installed with a rotor of the second direct drive motor 8, and a stator of the second direct drive motor 8 is fixedly installed with the installation platform 9.
It should be noted that, in the connection structure of the cab, the first direct drive motor 4 and the second direct drive motor 8 provide power support for the swing arm 6, acting forces of the first direct drive motor 4 and the second direct drive motor 8 on the swing arm 6 are mainly in the horizontal direction, and the driving stability adjustment of the cab assembly 2 in the vertical direction is realized through the driving rotation of the first direct drive motor 4 and the second direct drive motor 8.
As shown in fig. 1-2, a vertically stable cab of the present invention further includes: the central controller 1 and the gyro sensor 5, and the central controller 1 and the gyro sensor 5 jointly form an electric control unit of a cab.
As shown in fig. 1, 2, and 6, the active drive portion and the gyro sensor 5 are electrically connected to the central controller 1.
In one embodiment of the present invention, as shown in fig. 1, 2 and 6, the central controller 1 is disposed in the cab assembly 2, and the gyro sensor 5 is mounted at the bottom of the cab assembly 2.
The central controller 1 is electrically connected with the gyro sensor 5 through the input signal line 3.
The central controller 1 is also connected with a first direct drive motor 4 and a second direct drive motor 8 through a control signal line 7.
Note that, the central controller 1 is configured to:
when the angle of the cab assembly 2 relative to the connecting support part and the mounting platform 9 changes, the central controller 1 receives the angle change signal of the gyroscope sensor 5 and controls the operation state of the active driving part according to the angle change signal so as to buffer the angle change of the cab assembly 2.
The operation state of the active driving part comprises operation parameters such as starting or closing of the active driving part, the length of the operation time, the size of the rotation angle and the like.
It should be further noted that the gyro sensor 5 mounted at the bottom of the cab assembly 2 can sense acceleration change data of the cab assembly 2 in real time, and transmit the acceleration change data to the central controller 1 through the input signal line 3, the central controller 1 generates deflection signal data of the first direct drive motor 4 and the second direct drive motor 8 by resolving the acceleration data, and transmits the deflection signal data to the first direct drive motor 4 and the second direct drive motor 8 through the control signal line 7 so as to deflect the direct drive motors, thereby adjusting the attitude of the cab and realizing the stability of the cab.
A brief description of a vertically stable cab according to the present invention is provided below in connection with an excavator in actual production use.
In the process of starting and walking of the excavator, the somatosensory vibration of a driver mainly comes from the fact that when the chassis 10 of the excavator passes through an uneven road surface, the relative position of the driver in the cab to a running plane is continuously deviated in the vertical direction, and when the time interval of the two deviations is short, the cab can generate vibration to a certain degree under the influence of inertia and transmit the vibration to the driver.
Aiming at the vibration generation principle, the main riding and working places of a driver are mainly considered to be located inside the cab assembly 2, so that the problem of body-sensing vibration of the driver can be solved as long as the cab assembly 2 can stably move in the vertical direction relative to the originally driving horizontal plane of the excavator in the process that the excavator drives on a bumpy road surface.
In the embodiment of the application, as shown in fig. 2 and 3, when an excavator passes through a convex road surface, firstly, the front part of an excavator chassis 10 contacts with the convex part of the road surface, the front end of the whole excavator is slightly tilted relative to the rear end, the front end of a cab assembly 2 is also tilted at a certain angle under the driving of the excavator chassis 10, at this time, a gyroscope sensor 5 at the bottom of the cab assembly 2 detects the tilting, the tilting angle and the tilting direction are determined at the same time, the direction and the angle data are converted into electric signals and the electric signals are sent to a central controller 1 through an input signal line 3, the central controller 1 generates an adjustment scheme according to the received signals and corresponding to preset adjustment information, and the electric signals of the adjustment scheme are sent to a first direct drive motor 4 and a second direct drive motor 8 respectively.
For the above situation, the specific rotation modes of the first direct drive motor 4 and the second direct drive motor 8 are as follows:
the first direct drive motor 4 rotates by a certain angle to neutralize the angular deflection of the cab assembly 2 when the front end of the excavator passes through a raised road surface, so that the cab assembly 2 is kept stable in the vertical direction.
The second direct drive motor 8 rotates to lift the cab assembly 2 relative to an excavator chassis 10 connected with the mounting platform 9, so that the collision between corners of the cab assembly 2 and the chassis 10 in the rotation adjustment process is avoided, and the limitation of the chassis 10 on the rotation angle of the cab assembly 2 is also avoided.
Based on the adjustment process, the excavator further travels, as shown in fig. 2 and 4, the front part of the excavator chassis 10 travels over the raised part of the road surface, at this time, the rear part of the excavator chassis 10 contacts with the raised part of the road surface, the rear end of the whole excavator slightly tilts relative to the front end, the gyroscope sensor 5 generates an electric signal according to the detected tilting angle and direction and sends the electric signal to the central controller 1, and the central controller 1 controls the first direct drive motor 4 and the second direct drive motor 8 to rotate.
For the above situation, the specific rotation modes of the first direct drive motor 4 and the second direct drive motor 8 are as follows:
the second direct drive motor 8 rotates by a certain angle to neutralize the angular deflection of the cab assembly 2 when the rear end of the excavator passes through a raised road surface, so that the cab assembly 2 is kept stable in the vertical direction.
The first direct-drive motor 4 rotates to lift the cab assembly 2 relative to an excavator chassis 10 connected with the mounting platform 9, so that the collision between corners and the chassis 10 in the rotation adjustment process of the cab assembly 2 is avoided, and the limitation of the chassis 10 on the rotation angle of the cab assembly 2 is also avoided.
In other embodiments of the present application, when the excavator passes through a concave road surface, the detection and adjustment principles of the gyro sensor 5 and the central sensor are the same as those of the above embodiments, and are not described herein again, it should be noted that this embodiment and the above embodiments are only examples for facilitating understanding of the technical concept of the present invention, and the central controller 1 and the active driving part of the excavator further include other adjustment manners for the cab assembly 2 under other complex road conditions.
Based on the technical concept, the active damping structure further comprises a connecting support part, active driving parts arranged at two ends of the connecting support part, a gyroscope sensor 5 and a central controller 1, as shown in fig. 5.
As shown in fig. 5 and 6, the active drive unit and the gyro sensor 5 are electrically connected to the central controller 1.
The connection support is provided as a swing arm 6.
The active drive section comprises a first direct drive motor 4 and a second direct drive motor 8.
The active damping structure can be applied to other structures and products of mechanical engineering equipment needing damping, acceleration change data of a cab assembly 2 can be sensed in real time through a gyroscope sensor 5 and transmitted to a central controller 1 through an input signal line 3, the central controller 1 generates deflection signal data of a first direct drive motor 4 and a second direct drive motor 8 by resolving the acceleration data, and the deflection signal data of the first direct drive motor 4 and the second direct drive motor 8 are transmitted to the first direct drive motor 4 and the second direct drive motor 8 through a control signal line 7 so as to enable the direct drive motors to deflect, so that the active damping effect is achieved.
The utility model relates to an active damping structure, which is applied to the vertical stability cab and comprises a connecting support part, active driving parts arranged at two ends of the connecting support part, a gyroscope sensor and a central controller.
The driving part and the gyroscope sensor are electrically connected to the central controller, the cab angle vibration deflection is measured in real time according to the vertical gyroscope angle measurement principle, and the driving part adjusts the self posture of the cab in real time to achieve the effect of active shock absorption.
Based on the above conception, the second conception of the present application lies in that the connection structure of the cab is improved, the active damping structure is applied to the cab damping field of mechanical engineering, a vertical stable cab is provided, the gyroscope sensor installed at the bottom of the cab assembly can sense the acceleration change data of the cab assembly in real time, the acceleration change data is transmitted to the central controller through the input signal line, the central controller generates the deflection signal data of the first direct drive motor and the second direct drive motor by resolving the acceleration data, and the deflection signal data of the first direct drive motor and the second direct drive motor is transmitted to the first direct drive motor and the second direct drive motor through the control signal line so as to deflect the direct drive motors, thereby the posture of the cab is adjusted, and the stability of the cab is realized.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. A vertical stability cab comprises a cab assembly (2), a connecting and supporting part and a mounting platform (9), wherein the cab assembly (2) is connected to the mounting platform (9) through the connecting and supporting part, and the cab assembly (2) and the mounting platform (9) are respectively and rotatably hinged to two ends of the connecting and supporting part;
the device is characterized in that active driving parts are arranged at the hinged position of the cab assembly (2) and the connecting support part and the hinged position of the mounting platform (9) and the connecting support part, and the active driving parts are used for actively adjusting the relative positions among the cab assembly (2), the mounting platform (9) and the connecting support part;
a central controller (1) is arranged in the cab assembly (2);
a gyroscope sensor (5) is arranged at the bottom of the cab assembly (2);
the active driving part and the gyroscope sensor (5) are electrically connected to the central controller (1).
2. A vertically stable cab according to claim 1, wherein the connection support is provided as a swing arm (6).
3. A vertically stable cab as claimed in claim 2, wherein the active drive comprises a first direct drive motor (4) and a second direct drive motor (8);
the cab assembly (2) is hinged with the swing arm (6) through the first direct-drive motor (4);
the swing arm (6) is hinged with the mounting platform (9) through the second direct drive motor (8).
4. A vertically stable cab as claimed in claim 3, wherein the bracket at the bottom of the cab assembly (2) is fixedly mounted to the rotor of the first direct drive motor (4), and the front end of the swing arm (6) is fixedly mounted to the stator of the first direct drive motor (4);
the rear end of the swing arm (6) is fixedly installed with a rotor of the second direct drive motor (8), and a stator of the second direct drive motor (8) is fixedly installed with the installation platform (9).
5. A vertically stable cab as claimed in claim 1, wherein the central controller (1) is configured to: when the angle of the cab assembly (2) relative to the connecting support part and the mounting platform (9) changes, the central controller (1) receives an angle change signal of the gyroscope sensor (5) and controls the operation state of the active driving part according to the angle change signal so as to buffer the angle change of the cab assembly (2).
6. An active damping structure is characterized by comprising a connecting support part, active driving parts arranged at two ends of the connecting support part, a gyroscope sensor (5) and a central controller (1);
wherein the active driving part and the gyroscope sensor (5) are electrically connected to the central controller (1).
7. An active damping structure according to claim 6, characterized in that the connection support is provided as a swing arm (6).
8. An active damping structure according to claim 6, characterized in that the active drive comprises a first direct drive motor (4) and a second direct drive motor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120969196.0U CN215904618U (en) | 2021-05-08 | 2021-05-08 | Vertical stability driver's cabin and initiative shock-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120969196.0U CN215904618U (en) | 2021-05-08 | 2021-05-08 | Vertical stability driver's cabin and initiative shock-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215904618U true CN215904618U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120969196.0U Active CN215904618U (en) | 2021-05-08 | 2021-05-08 | Vertical stability driver's cabin and initiative shock-absorbing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215904618U (en) |
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2021
- 2021-05-08 CN CN202120969196.0U patent/CN215904618U/en active Active
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Address after: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee after: Lovol Heavy Industry Group Co.,Ltd. Address before: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Patentee before: LOVOL Engineering Machinery Group Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |