Automatic adjusting system for horizontal rotary table of engineering machinery and engineering machinery

Abstract

The utility model discloses an automatic adjusting system for a horizontal rotary table of engineering machinery. The automatic adjusting system comprises a whole vehicle main controller, a main valve group, a main pump, an adjusting valve group and a horizontal sensor, an adjusting telescopic hydraulic cylinder set is arranged at the bottom of the platform, and a main valve set is in signal connection with a whole vehicle main controller and comprises a supporting leg stretching control proportional valve and a supporting leg retracting control proportional valve. The horizontal sensor is in signal connection with the whole vehicle main controller and is mounted on the platform; the whole vehicle main controller receives signals of the horizontal sensor and controls the main valve set, the adjusting valve set and the adjusting telescopic hydraulic cylinder set to work, and horizontal adjustment of the platform is completed. According to the automatic adjusting system for the engineering machinery horizontal rotary table, automatic adjustment of the engineering machinery horizontal rotary table is achieved, and adjustment is convenient and accurate.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, and in particular to an automatic adjustment system for a horizontal turntable of engineering machinery and engineering machinery. Background Technology

[0002] Currently, most construction machinery uses mechanical levels to check the level of the machine's turntable. This requires manual adjustment or calibration, which is inconvenient to operate, carries a significant risk of error in accuracy, has low operating efficiency, and places high demands on the operator's experience and technical skills.

[0003] The existing technology for adjusting the horizontal turntable of a machine has the following shortcomings:

[0004] 1. It is very inconvenient to operate, as you need to observe the level's detection status while operating it, and even a slight movement may lead to an operational error.

[0005] 2. Relying on the operator's senses for subjective judgment carries a significant risk of error in operational precision;

[0006] 3. The leveling process takes longer and requires a high level of experience and skill from the operator. Utility Model Content

[0007] In order to overcome at least one of the defects mentioned above in the prior art, this utility model provides an automatic adjustment system for the horizontal turntable of engineering machinery, which realizes the automatic adjustment of the horizontal turntable of engineering machinery, and the adjustment is convenient and accurate.

[0008] In order to overcome at least one of the defects described in the prior art, the present invention provides an engineering machinery having the aforementioned automatic adjustment system for the engineering machinery horizontal turntable, which enables the engineering machinery horizontal turntable to achieve automated adjustment, with high adjustment efficiency and improved accuracy of the engineering machinery horizontal turntable.

[0009] The technical solution adopted by this utility model to solve its problem is:

[0010] An automatic adjustment system for a horizontal turntable of engineering machinery includes a vehicle main controller, a main valve group, a main pump, an adjusting valve group, and a level sensor; the adjusting valve group is signal-connected to the vehicle main controller and includes a first solenoid valve installed on the front left of the platform, a second solenoid valve installed on the front right of the platform, a third solenoid valve installed on the rear left of the platform, and a fourth solenoid valve installed on the rear right of the platform.

[0011] The bottom of the platform is equipped with an adjustable telescopic hydraulic cylinder assembly, which is signal-connected to the vehicle main controller and includes a first hydraulic cylinder installed at the bottom of the left front part of the platform, a second hydraulic cylinder installed at the bottom of the right front part of the platform, a third hydraulic cylinder installed at the bottom of the left rear part of the platform, and a fourth hydraulic cylinder installed at the bottom of the right rear part of the platform.

[0012] The first solenoid valve is located at the front of the first liquid cylinder, the second solenoid valve is located at the front of the second liquid cylinder, the third solenoid valve is located at the front of the third liquid cylinder, and the fourth solenoid valve is located at the front of the fourth liquid cylinder.

[0013] The main valve group is signal-connected to the vehicle main controller and includes a outrigger extension control proportional valve and an outrigger retraction control proportional valve.

[0014] The horizontal sensor is signal-connected to the vehicle main controller and is mounted on the platform;

[0015] The vehicle main controller receives the level sensor signal and controls the main valve group, the regulating valve group, and the regulating telescopic cylinder group to work and complete the platform level adjustment.

[0016] Furthermore, the platform is also connected to a left front support leg, a right front support leg, a left rear support leg, and a right rear support leg. The front part of the first hydraulic cylinder is connected to the left front support leg, the front part of the second hydraulic cylinder is connected to the right front support leg, the front part of the third hydraulic cylinder is connected to the left rear support leg, and the front part of the fourth hydraulic cylinder is connected to the right rear support leg.

[0017] Furthermore, it also includes a main pump solenoid valve, which is signal-connected to the vehicle main controller.

[0018] Furthermore, it also includes a main pump pressure sensor, which acquires the main pump pressure value and transmits the pressure value to the vehicle main controller.

[0019] Furthermore, it also includes a vehicle display and a support leg control panel, both of which communicate with the vehicle main controller via a CAN bus. The vehicle display is equipped with an automatic leveling request button, which communicates with the vehicle main controller via a CAN bus.

[0020] The vehicle main controller controls the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, and the fourth hydraulic cylinder to start working based on the signals input from the outrigger control panel.

[0021] Furthermore, it also includes an engine and an engine ECM, wherein the engine ECM communicates with the vehicle main controller via a CAN bus, and the engine is mechanically connected to the main pump.

[0022] Furthermore, the engine and the main pump are connected via a coupling.

[0023] Furthermore, the outrigger control panel includes at least left front, right front, left rear and right rear buttons. The left front button controls the first hydraulic cylinder to work, the right front button controls the second hydraulic cylinder to work, the left rear button controls the third hydraulic cylinder to work, and the right rear button controls the fourth hydraulic cylinder to work.

[0024] Furthermore, it also includes a mechanical level, which is mounted on the platform and close to the level sensor. The mechanical level is connected to the vehicle main controller and its status is displayed on the vehicle display.

[0025] An engineering machine includes the aforementioned automatic adjustment system for a horizontal turntable.

[0026] In summary, the automatic adjustment system for a horizontal turntable of engineering machinery provided by this utility model has the following technical effects:

[0027] By setting up regulating valve groups and level sensors, combined with the control of the vehicle's main controller, the level of the construction machinery's horizontal turntable can be automatically adjusted, with fast and precise adjustment.

[0028] In summary, the engineering machinery provided by this utility model has the following technical effects: the aforementioned automatic adjustment system for the horizontal turntable of the engineering machinery is applied to the engineering machinery, which makes the adjustment of the horizontal turntable of the engineering machinery precise, greatly improving the stability of the engineering machinery and the accuracy of the engineering machinery during operation. Attached Figure Description

[0029] Figure 1 This is a system schematic diagram of an automatic adjustment system for a horizontal turntable of engineering machinery according to the present invention.

[0030] The meanings of the reference numerals in the attached figures are as follows:

[0031] 1. Vehicle main controller; 2. Main pump; 21. Main pump pressure sensor; 22. Main pump solenoid valve; 3. Main valve assembly; 31. Outrigger extension proportional valve; 32. Outrigger retraction proportional valve; 4. Adjusting valve assembly; 41. First solenoid valve; 42. Second solenoid valve; 43. Third solenoid valve; 44. Fourth solenoid valve; 45. First hydraulic cylinder; 46. Second hydraulic cylinder; 47. Third hydraulic cylinder; 48. Fourth hydraulic cylinder; 5. Vehicle display; 6. Engine; 7. Engine ECM; 8. Coupling; 9. Automatic leveling request button; 10. Outrigger control panel; 11. Level sensor. Detailed Implementation

[0032] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] See Figure 1 This utility model discloses an automatic adjustment system for a horizontal turntable of engineering machinery.

[0036] An automatic adjustment system for a horizontal turntable of engineering machinery includes a vehicle main controller 1, a main valve group 3, a main pump 2, an adjusting valve group 4, and a level sensor. The adjusting valve group 4 is signal-connected to the vehicle main controller 1 and includes a first solenoid valve 41 installed on the front left of the platform, a second solenoid valve 42 installed on the front right of the platform, a third solenoid valve 43 installed on the rear left of the platform, and a fourth solenoid valve 44 installed on the rear right of the platform.

[0037] The bottom of the platform is equipped with an adjustable telescopic hydraulic cylinder assembly, which is connected to the vehicle main controller 1 via signal. The assembly includes a first hydraulic cylinder 45 installed at the bottom of the left front part of the platform, a second hydraulic cylinder 46 installed at the bottom of the right front part of the platform, a third hydraulic cylinder 47 installed at the bottom of the left rear part of the platform, and a fourth hydraulic cylinder 48 installed at the bottom of the right rear part of the platform.

[0038] The first solenoid valve 41 is located in front of the first liquid cylinder 45, the second solenoid valve 42 is located in front of the second liquid cylinder 46, the third solenoid valve 43 is located in front of the third liquid cylinder 47, and the fourth solenoid valve 44 is located in front of the fourth liquid cylinder 48.

[0039] The main valve group 3 is connected to the vehicle main controller 1 by signal and includes a outrigger extension control proportional valve 31 and an outrigger retraction control proportional valve 32.

[0040] The level sensor is connected to the vehicle main controller 1 and mounted on the platform.

[0041] The vehicle main controller 1 receives the level sensor signal and controls the main valve group 3, the regulating valve group, and the regulating telescopic cylinder group to complete the level adjustment of the platform.

[0042] Based on the above scheme, when adjusting the horizontal turntable of the construction machinery, the vehicle main controller 1 first receives the level sensor signal and determines whether the horizontal turntable is level based on the received signal. If the horizontal turntable is not level, the adjustment operation is initiated. The adjustment operation process is as follows: the vehicle main controller 1 first performs leveling operations in the left and right directions, and then controls the leveling operations in the front and back directions. It is worth noting that the "left and right directions" and "front and back directions" here refer to the initial state of the horizontal turntable when it is engaged in operation.

[0043] When making horizontal adjustments in the left and right directions, the vehicle main controller 1 calibrates the position of either the first hydraulic cylinder 45 or the second hydraulic cylinder 46 as the reference position. Then, it controls the extension or retraction of one of the uncalibrated cylinders 45 and 46 to adjust the horizontal turntable to a horizontal state. If the vehicle main controller 1 calibrates the first hydraulic cylinder 45 as the reference position, the specific adjustment process is as follows: The vehicle main controller 1 controls the main pump 2 to operate, and simultaneously controls the outrigger extension control proportional valve 31 and the outrigger retraction control proportional valve 32 of the main valve group 3 to operate. The outrigger extension control proportional valve 31 or the outrigger retraction control proportional valve 32 controls the second hydraulic cylinder 46 to extend or retract until the horizontal turntable is adjusted to a horizontal state.

[0044] During the above adjustment process, if due to terrain or other reasons, the horizontal turntable cannot be made horizontal in the left and right directions no matter how the state of the second hydraulic cylinder 46 is adjusted, the vehicle main controller 1 will automatically switch to using the second hydraulic cylinder 46 as the reference benchmark. At this time, the first solenoid valve 41 controls the extension or retraction of the first hydraulic cylinder 45 according to the horizontal state of the horizontal turntable in the left and right directions until the state in the left and right directions is adjusted to be horizontal.

[0045] After the horizontal adjustment of the turntable is completed in the left and right directions, the vehicle main controller 1 will automatically control it to enter the front and rear adjustment mode, and then adjust the horizontal position of the turntable in the front and rear directions. During the front and rear horizontal adjustment, the solenoid valves involved are the outrigger extension control proportional valve 31, the outrigger retraction control proportional valve 32, the first solenoid valve 41, the second solenoid valve 42, the third solenoid valve 43, and the fourth solenoid valve 44. The specific adjustment process is as follows: The vehicle main controller 1 defaults to calibrating the position of the first hydraulic cylinder 45 as the reference position and performs front and rear horizontal adjustment. At this time, the vehicle main controller 1 controls the third solenoid valve 43 through the outrigger extension control proportional valve 31 and the outrigger retraction control proportional valve 32, thereby controlling the extension and retraction of the third hydraulic cylinder 47 until the turntable is horizontal in the front and rear directions.

[0046] Similarly, during the aforementioned horizontal adjustment process in the front and rear directions, if due to terrain or other reasons, the horizontal turntable cannot be made horizontal in the left and right directions no matter how the state of the third hydraulic cylinder 47 is adjusted, the vehicle main controller 1 will automatically switch to using the second hydraulic cylinder 46 as the reference benchmark. At this time, the fourth solenoid valve 44 controls the extension or retraction of the fourth hydraulic cylinder 48 according to the horizontal state of the horizontal turntable in the left and right directions until the state in the front and rear directions is adjusted to be horizontal.

[0047] In each of the above adjustment steps, the vehicle main controller 1 always receives the signal from the level sensor in real time and determines whether the level turntable is in or has reached a level state. If it is in or has reached a level state, the next adjustment is performed or the adjustment is terminated. If it has not reached a level state, the adjustment needs to be continued or the reference benchmark is replaced in time and the adjustment is continued until the level state is in both the left and right directions and the front and back directions.

[0048] In this technical solution, by setting up regulating valve group 4 and level sensor, combined with the control of vehicle main controller 1, the level of the engineering machinery turntable is automatically adjusted, and the adjustment is fast and precise.

[0049] In this technical solution, the platform is also connected to a left front support leg, a right front support leg, a left rear support leg, and a right rear support leg. The front of the first hydraulic cylinder 45 is connected to the left front support leg, the front of the second hydraulic cylinder 46 is connected to the right front support leg, the front of the third hydraulic cylinder 47 is connected to the left rear support leg, and the front of the fourth hydraulic cylinder 48 is connected to the right rear support leg.

[0050] The height of the horizontal turntable can be adjusted by controlling the extension and retraction of the outriggers with hydraulic cylinders, thus adjusting the horizontal state of the turntable.

[0051] In the above scheme, the outriggers are adjusted by hydraulic cylinders. The hydraulic cylinder and the outriggers can be installed in two ways: the hydraulic cylinder is part of the outrigger, that is, part of the outrigger is connected to the front or end of the hydraulic cylinder along the entire length of the outrigger, in which case the extension and retraction of the hydraulic cylinder and the outrigger extend and retract; or the hydraulic cylinder can adjust the outrigger with extension and retraction function, the extension and retraction of the hydraulic cylinder drives the extension and retraction of the outrigger, thereby adjusting the height of the outrigger and adjusting the horizontal state of the turntable.

[0052] In this technical solution, the automatic adjustment system for the horizontal turntable of the construction machinery also includes a main pump solenoid valve 22, which is signal-connected to the vehicle's main controller 1. During the horizontal adjustment of the turntable, the vehicle's main controller 1 controls the main pump solenoid valve 22 to maintain a constant current output, ensuring that the pressure output by the main pump 2 is constant. This provides stable pressure for the operation of the outrigger extension control proportional valve 31 and the outrigger retraction control proportional valve 32, and for each hydraulic cylinder, making the horizontal adjustment operation of the turntable fast and precise.

[0053] In this technical solution, the automatic adjustment system for the horizontal turntable of engineering machinery also includes a main pump pressure sensor 21. The main pump pressure sensor 21 acquires the pressure value of the main pump 2 and transmits the pressure value to the vehicle's main controller 1. The main pump pressure sensor 21 monitors the current system's operating pressure and the main pump 2 pressure value in real time.

[0054] In this technical solution, the automatic leveling system for the engineering machinery turntable also includes a vehicle display 5 and an outrigger control panel 10. Both the vehicle display 5 and the outrigger control panel 10 communicate with the vehicle main controller 1 via a CAN bus. The vehicle display 5 is equipped with an automatic leveling request button 9, which communicates with the vehicle main controller 1 via the CAN bus. CAN bus communication has strong anti-electromagnetic interference capabilities and excellent real-time performance, enabling rapid response to communication requests in the network.

[0055] The vehicle main controller 1 controls the first hydraulic cylinder 45, the second hydraulic cylinder 46, the third hydraulic cylinder 47, and the fourth hydraulic cylinder 48 to start working based on the signals input from the outrigger control panel 10. At the same time, the vehicle main controller 1 also uses the request from the automatic leveling request button 9 and the signals input from the outrigger control panel 10 as a reference to calibrate the position of the first hydraulic cylinder 45 or the second hydraulic cylinder 46.

[0056] In this technical solution, the automatic adjustment system for the horizontal turntable of engineering machinery also includes an engine 6 and an engine ECM7. The engine ECM7 communicates with the vehicle main controller 1 via a CAN bus, and the engine 6 is mechanically connected to the main pump 2. The vehicle main controller 1 controls the engine ECM7, thereby controlling the engine 6, and further driving the main pump 2.

[0057] In this technical solution, the engine 6 and the main pump 2 are connected by a coupling 8. The output components of the engine 6 are connected to the main pump 2 via the coupling 8, enabling the engine 6 to drive the main pump 2.

[0058] In this technical solution, the outrigger control panel 10 includes at least left front, right front, left rear and right rear buttons. The left front button controls the first hydraulic cylinder 45 to work, the right front button controls the second hydraulic cylinder 46 to work, the left rear button controls the third hydraulic cylinder 47 to work, and the right rear button controls the fourth hydraulic cylinder 48 to work.

[0059] In this technical solution, the automatic adjustment system for the leveling turntable of engineering machinery also includes a mechanical level. The mechanical level is installed on the platform and close to the level sensor. The mechanical level is connected to the vehicle main controller 1 and its status is displayed on the vehicle display 5. The mechanical level serves as a supplement and comparison to the level sensor. The vehicle main controller 1 receives the level signal from the mechanical level in real time and compares it with the received level sensor signal. If both signals indicate that the turntable is not level, it means the level sensor is working normally. If the mechanical level signal indicates that the turntable is level or not level, but the level sensor signal shows a different state, the mechanical level needs to be checked and tested to eliminate any faults in the level sensor 11 or the mechanical level, ensuring that both are working normally.

[0060] In this technical solution, an engineering machinery includes the aforementioned automatic adjustment system for the horizontal turntable of the engineering machinery, which enables precise adjustment of the horizontal turntable of the engineering machinery, greatly improving the stability of the engineering machinery and the accuracy of the engineering machinery during operation.

[0061] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An automatic adjustment system for a horizontal turntable of engineering machinery, characterized in that: It includes a vehicle main controller, a main valve group, a main pump, a regulating valve group, and a level sensor; the regulating valve group is signal-connected to the vehicle main controller and includes a first solenoid valve installed on the front left of the platform, a second solenoid valve installed on the front right of the platform, a third solenoid valve installed on the rear left of the platform, and a fourth solenoid valve installed on the rear right of the platform. The bottom of the platform is equipped with an adjustable telescopic hydraulic cylinder assembly, which is signal-connected to the vehicle main controller and includes a first hydraulic cylinder installed at the bottom of the left front part of the platform, a second hydraulic cylinder installed at the bottom of the right front part of the platform, a third hydraulic cylinder installed at the bottom of the left rear part of the platform, and a fourth hydraulic cylinder installed at the bottom of the right rear part of the platform. The first solenoid valve is located at the front of the first liquid cylinder, the second solenoid valve is located at the front of the second liquid cylinder, the third solenoid valve is located at the front of the third liquid cylinder, and the fourth solenoid valve is located at the front of the fourth liquid cylinder. The main valve group is signal-connected to the vehicle main controller and includes a outrigger extension control proportional valve and an outrigger retraction control proportional valve. The level sensor is signal-connected to the vehicle main controller and is mounted on the platform; The vehicle main controller receives the level sensor signal and controls the main valve group, the regulating valve group, and the regulating telescopic cylinder group to work and complete the platform level adjustment.

2. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 1, characterized in that: The platform is also connected to a left front support leg, a right front support leg, a left rear support leg, and a right rear support leg. The front part of the first hydraulic cylinder is connected to the left front support leg, the front part of the second hydraulic cylinder is connected to the right front support leg, the front part of the third hydraulic cylinder is connected to the left rear support leg, and the front part of the fourth hydraulic cylinder is connected to the right rear support leg.

3. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 1, characterized in that: It also includes a main pump solenoid valve, which is signal-connected to the vehicle main controller.

4. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 1, characterized in that: It also includes a main pump pressure sensor, which acquires the main pump pressure value and transmits the pressure value to the vehicle main controller.

5. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 1, characterized in that: It also includes a vehicle display and a support leg control panel. Both the vehicle display and the support leg control panel communicate with the vehicle main controller via a CAN bus. The vehicle display is equipped with an automatic leveling request button, which communicates with the vehicle main controller via a CAN bus. The vehicle main controller controls the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, and the fourth hydraulic cylinder to start working based on the signals input from the outrigger control panel.

6. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 5, characterized in that: It also includes an engine and an engine ECM, the engine ECM communicating with the vehicle main controller via a CAN bus, and the engine being mechanically connected to the main pump.

7. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 6, characterized in that: The engine and the main pump are connected by a coupling.

8. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 5, characterized in that: The outrigger control panel includes at least four buttons: left front, right front, left rear, and right rear. The left front button controls the first hydraulic cylinder, the right front button controls the second hydraulic cylinder, the left rear button controls the third hydraulic cylinder, and the right rear button controls the fourth hydraulic cylinder.

9. The automatic adjustment system for a horizontal turntable of engineering machinery according to claim 5, characterized in that: It also includes a mechanical level, which is mounted on the platform and close to the level sensor. The mechanical level is connected to the vehicle main controller and its status is displayed on the vehicle display.

10. An engineering machinery, characterized in that, It includes the automatic adjustment system for the horizontal turntable of engineering machinery as described in any one of claims 1 to 9.

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