CN112049830A - Synchronous lifting system for construction machinery and construction equipment - Google Patents
Synchronous lifting system for construction machinery and construction equipment Download PDFInfo
- Publication number
- CN112049830A CN112049830A CN202010958635.8A CN202010958635A CN112049830A CN 112049830 A CN112049830 A CN 112049830A CN 202010958635 A CN202010958635 A CN 202010958635A CN 112049830 A CN112049830 A CN 112049830A
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- Prior art keywords
- control center
- lifting
- construction
- monitoring
- synchronous
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/78—Control of multiple output members
- F15B2211/782—Concurrent control, e.g. synchronisation of two or more actuators
Abstract
The invention relates to the technical field of building facilities, in particular to a synchronous lifting system for building machinery and building construction equipment, which comprises: a lifting platform; the lifting column supporting modules synchronously drive the lifting platform to lift; the monitoring module monitors the motion state of each lifting column supporting module and sends the motion state to the control center; the control center controls the synchronous action of the lifting column supporting modules; the lifting column supporting module comprises a control unit, a sensor group, an oil tank, a hydraulic pump, a transmission pipeline and a hydraulic cylinder which are sequentially connected, the hydraulic pump conveys a medium to drive the hydraulic cylinder to act, the sensor group is used for monitoring the running state of each part, and the control unit controls each part to work and is in communication connection with a control center. The invention has the beneficial effects that: the synchronous precision of lifting platform lift has been improved, the operation is more steady, has promoted operating personnel's travelling comfort.
Description
Technical Field
The invention relates to the technical field of building facilities, in particular to a synchronous lifting system for building machinery and building construction equipment.
Background
At present, in the building field, a stacking building is gradually replaced by an assembly building; the continuous development and evolution of the fabricated building; the requirements on the assembly efficiency and the construction quality are higher and higher; the tower crane equipment has high requirements on construction environment, the construction radius is constant, and enough tower crane equipment needs to be erected to delay the construction progress; or the construction external frame is built, but the building time is long; the lifting system of the building construction equipment meets the market demand.
According to the control of the existing lifting system, the platform is lifted and lowered mostly by adopting a switch valve and a pull wire sensor to form feedback control, so that the platform is obviously stopped when lifted and lowered, large impact is generated on the platform structure, the service life of the platform is influenced, and the operating comfort of operators on the platform is poor.
Disclosure of Invention
The present invention is directed to a synchronous lifting system for construction machines and construction equipment to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a synchronous lifting system for construction machinery and construction equipment, comprising: a lifting platform; the lifting column supporting modules synchronously drive the lifting platform to lift; the monitoring module monitors the motion state of each lifting column supporting module and sends the motion state to the control center; the control center controls the lifting column supporting modules to synchronously act.
As a further scheme of the invention: the lifting column supporting module comprises a control unit, an oil tank, a hydraulic pump, a transmission pipeline and a hydraulic cylinder which are sequentially connected, the hydraulic pump transmits a medium to drive the hydraulic cylinder to act, the monitoring module monitors the running states of the transmission pipeline and the hydraulic cylinder, and the control unit controls all parts to work and is in communication connection with a control center.
As a still further scheme of the invention: the hydraulic pump and the transmission pipeline are further connected with the oil tank through overflow pipelines respectively, and protection elements are arranged on the overflow pipelines and used for protecting the hydraulic pump and the transmission pipelines.
As a still further scheme of the invention: the transmission pipeline is at least provided with a proportional valve, a balance valve, an overflow valve and a hydraulic lock and is used for adjusting and controlling the medium flow and pressure in the transmission pipeline.
As a still further scheme of the invention: the transmission pipeline is also provided with a filter for filtering impurities in the medium.
As a still further scheme of the invention: the monitoring module comprises a displacement sensor and a pressure sensor which are connected with the control unit, the displacement sensor is arranged on the hydraulic cylinder and used for monitoring the stroke of a piston rod of the hydraulic cylinder, and the pressure sensor is used for monitoring the pressure of the transmission pipeline.
As a still further scheme of the invention: the control center is connected with a data acquisition unit, and the data acquisition unit is used for acquiring pressure data of each lifting column supporting module.
As a still further scheme of the invention: the monitoring module comprises a monitoring element arranged on the lifting platform, wherein the monitoring element is used for monitoring the verticality and the levelness of the lifting platform and sending out a warning signal when the verticality and the levelness exceed a set range.
As a still further scheme of the invention: the monitoring element comprises a camera which is in communication connection with the control center.
As a still further scheme of the invention: the control center is also in communication connection with the central processing unit, and the central processing unit remotely controls the work of each lifting column supporting module through the control center.
Compared with the prior art, the invention has the beneficial effects that: the synchronous precision of lifting platform lift has been improved, the operation is more steady, has promoted operating personnel's travelling comfort.
Drawings
Fig. 1 is a system schematic for a synchronous lifting system for construction machinery and construction equipment in an embodiment of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a system block diagram of a control center in an embodiment of the present invention.
In the drawings: 1. a load-sensitive pump; 2. a high pressure filter; 3. an oil return filter; 4. an oil tank; 5. a proportional valve; 6. a balancing valve; 7. an overflow valve; 8. hydraulic locking; 9. a hydraulic cylinder; 10. and an overflow pipeline.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Referring to fig. 1-2, in one embodiment of the present invention, a synchronous lifting system for construction machinery and construction equipment includes: a lifting platform; the lifting column supporting modules synchronously drive the lifting platform to lift; the monitoring module monitors the motion state of each lifting column supporting module and sends the motion state to the control center; the control center controls the lifting column supporting modules to synchronously act.
Specifically, the lifting platform is made of profiles through welding, four groups of lifting column supporting modules are arranged at the bottom of the lifting platform to drive the lifting platform to lift, a control center respectively controls each group of lifting column supporting modules to synchronously move, height errors of four corners of the lifting platform are kept within a set range, and inclination is avoided; the lifting column supporting module comprises a control unit, an oil tank 4, a hydraulic pump, a transmission pipeline and a hydraulic cylinder which are sequentially connected, the hydraulic pump transmits a medium to drive the hydraulic cylinder to act, the monitoring module monitors the running states of the transmission pipeline and the hydraulic cylinder, and the control unit controls all parts to work and is in communication connection with a control center; the monitoring module comprises a displacement sensor and a pressure sensor which are connected with the control unit, the displacement sensor is arranged on the hydraulic cylinder and used for monitoring the stroke of a piston rod of the hydraulic cylinder, and the pressure sensor is used for monitoring the pressure of the transmission pipeline; the transmission pipeline is at least provided with a proportional valve 5, a balance valve 6, an overflow valve 7 and a hydraulic lock 8 for adjusting and controlling the medium flow and pressure in the transmission pipeline.
As shown in fig. 3, the hydraulic pump adopts a load-sensitive pump 1, the control unit adopts a PID controller (proportional-integral-derivative controller), and the hydraulic cylinder adopts a hydraulic cylinder 9; the lifting process of the lifting platform comprises the following steps: the control center controls the output quantity of the hydraulic oil output by the four load-sensitive pumps 1, and the hydraulic oil is conveyed to the hydraulic oil cylinder to drive a piston rod to stretch after being regulated by a proportional valve on a transmission pipeline, and the piston rod stretches to push the lifting platform to ascend; the displacement sensor (position sensor) measures the stroke of the piston rod and feeds the stroke back to the PID controller, the control center collects data of the PID controllers to compare difference values, the difference values are sent to the PID controllers corresponding to the difference values, and the PID controllers control the proportional valves to adjust the flow of hydraulic oil in the transmission pipeline so as to change the amount of the hydraulic oil transmitted to the hydraulic oil cylinder driving piston rod and further reduce or eliminate the difference values. The PID controller increases and decreases the amount of hydraulic oil conveyed to the hydraulic oil cylinder driving piston rod through the proportional valve to adjust the stroke of the piston rod, and further keep synchronous lifting of the lifting platform. After the lifting platform is lifted, the hydraulic oil cylinder 9 is locked through the hydraulic lock 8; in order to ensure the stable operation of the transmission pipeline, when the medium pressure of the transmission pipeline exceeds a normal range, the medium pressure of the transmission pipeline is adjusted through a balance valve 6 and an overflow valve 7.
In conclusion, the PID controllers are adopted to carry out high-precision adjustment on the action errors of each group of lifting column supporting modules, and then the control center synchronizes the PID controllers, so that the lifting synchronization precision of the lifting platform is improved, the lifting platform runs more stably, and the comfort of operators is improved.
Referring to fig. 1, in another embodiment of the present invention, the hydraulic pump and the transmission pipeline are further connected to an oil tank through an overflow pipeline 10, and a protection element is disposed on the overflow pipeline 10 for protecting the hydraulic pump and the transmission pipeline.
The protection element comprises an overflow valve, and when the medium pressure in the hydraulic pump and the transmission pipeline is overlarge, the medium is output to the oil tank 4 through the overflow valve, so that the medium pressure is reduced, and the hydraulic pump and the transmission pipeline are protected.
Referring to fig. 1, in another embodiment of the present invention, a filter is further disposed on the transmission pipeline for filtering impurities in the medium.
The filter includes high pressure filter 2, oil return filter 3, high pressure filter 2, oil return filter 3 filter the hydraulic oil of 1 output of load sensitive pump, the hydraulic oil that needs to retrieve to the oil tank respectively, reduce and eliminate the destruction of impurity on the transmission line road part in the hydraulic oil, still be convenient for reuse.
Referring to fig. 1, in another embodiment of the present invention, the control center is connected to a data acquisition unit, and the data acquisition unit is used for acquiring pressure data of each lifting column support module.
The data acquisition unit comprises a data acquisition unit and a storage, the data acquisition unit acquires the operation parameters of the proportional valve 5, the balance valve 6, the overflow valve 7 and the hydraulic lock 8 on the transmission pipeline and stores the related operation parameters in the storage, the control center adopts a microprocessor, the microprocessor reads the data of the storage, the operation state of each lifting column supporting module is known through the read data, the operation state is adjusted in real time, and the stability and the safety of the movement of each lifting column supporting module driving the lifting platform are ensured.
Referring to fig. 1, in another embodiment of the present invention, the monitoring module includes a monitoring element disposed on the lifting platform, and the monitoring element is configured to monitor the verticality and the levelness of the lifting platform and send a warning signal when the verticality and the levelness exceed a set range.
Specifically, the monitoring element comprises a camera, and the camera is in communication connection with the control center. The camera sends the running state of the lifting platform, the stress state and the position information of each key point of safety detection to the control center through video monitoring in real time, if the video monitoring information deviates from the set scene, the control center correspondingly sends out an alarm signal or generates an emergency, the control center cuts off the running of each lifting column supporting module in real time, sends out the alarm signal and only allows each lifting column supporting module to work to the safety state.
Referring to fig. 1, in another embodiment of the present invention, the control center is further connected to a central processing unit, and the central processing unit remotely controls the operation of each lifting column supporting module through the control center.
The control center sends the safety monitoring state to the central processing unit, so that ground commanders can conveniently and comprehensively know the running states of the lifting column supporting module and the lifting platform. The central processing unit is convenient to process big data, guiding help is provided for subsequent safety operation, and different operation strategies can be adopted in different working stages according to analysis results.
The working principle of the invention is as follows: the lifting column supporting module comprises a control unit, an oil tank 4, a hydraulic pump, a transmission pipeline and a hydraulic cylinder which are sequentially connected, wherein the hydraulic pump transmits a medium to drive the hydraulic cylinder to act, and the hydraulic cylinder acts to drive the lifting platform to lift; the monitoring module monitors the running states of the transmission pipeline and the hydraulic cylinder, and the control unit controls all parts to work and is in communication connection with the control center; as shown in fig. 3, the hydraulic pump adopts a load-sensitive pump 1, the control unit adopts a PID controller (proportional-integral-derivative controller), and the hydraulic cylinder adopts a hydraulic cylinder 9; the lifting process of the lifting platform comprises the following steps: the control center controls the output quantity of the hydraulic oil output by the four load-sensitive pumps 1, and the hydraulic oil is conveyed to the hydraulic oil cylinder to drive a piston rod to stretch after being regulated by a proportional valve on a transmission pipeline, and the piston rod stretches to push the lifting platform to ascend; the displacement sensor (position sensor) measures the stroke of the piston rod and feeds the stroke back to the PID controller, the control center collects data of the PID controllers to compare difference values, the difference values are sent to the PID controllers corresponding to the difference values, and the PID controllers control the proportional valves to adjust the flow of hydraulic oil in the transmission pipeline so as to change the amount of the hydraulic oil transmitted to the hydraulic oil cylinder driving piston rod and further reduce or eliminate the difference values. The PID controller increases and decreases the amount of hydraulic oil conveyed to the hydraulic oil cylinder driving piston rod through the proportional valve to adjust the stroke of the piston rod, and further keep synchronous lifting of the lifting platform.
It should be noted that the PID controller, the camera, the microprocessor and the central processing unit adopted in the present invention are all applications in the prior art, and those skilled in the art can implement the functions to be achieved according to the related description, or implement the technical features to be accomplished by the similar techniques, and will not be described in detail herein.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. The utility model provides a be used for construction machinery and construction to equip synchronous operating system, includes lift platform, its characterized in that still includes:
the lifting column supporting modules synchronously drive the lifting platform to lift; and
the monitoring module monitors the motion state of each lifting column supporting module and sends the motion state to the control center; the control center controls the lifting column supporting modules to synchronously act.
2. The synchronous lifting system for the construction machinery and the construction equipment as claimed in claim 1, wherein the lifting column supporting module comprises a control unit, an oil tank, a hydraulic pump, a transmission pipeline and a hydraulic cylinder which are connected in sequence, the hydraulic pump delivers a medium to drive the hydraulic cylinder to act, the monitoring module monitors the operation state of the transmission pipeline and the hydraulic cylinder, and the control unit controls the operation of all the components and is in communication connection with a control center.
3. The synchronous lifting system for construction machinery and construction equipment according to claim 2, wherein the hydraulic pump and the transfer line are further connected to an oil tank through overflow lines, respectively, and a protection member is provided on the overflow lines for protecting the hydraulic pump and the transfer line.
4. The synchronous lifting system for construction machinery and construction equipment according to claim 2, wherein the transmission pipeline is provided with at least a proportional valve, a balance valve, an overflow valve and a hydraulic lock.
5. The synchronous lifting system for construction machinery and construction equipment according to claim 4, wherein the transfer pipeline is further provided with a filter for filtering impurities in the medium.
6. The synchronous lifting system for construction machinery and construction equipment according to claim 2, wherein the monitoring module comprises a displacement sensor and a pressure sensor connected with the control unit, the displacement sensor is arranged on the hydraulic cylinder and used for monitoring the stroke of the piston rod of the hydraulic cylinder, and the pressure sensor is used for monitoring the pressure of the transmission pipeline.
7. The synchronous lifting system for construction machinery and building construction equipment according to claim 1, wherein a data acquisition unit is connected to the control center for acquiring pressure data of each lifting column support module.
8. The synchronous lifting system for construction machinery and construction equipment according to claim 1, wherein the monitoring module comprises a monitoring element disposed on the lifting platform for monitoring the verticality and levelness of the lifting platform and sending a warning signal when the verticality and levelness exceed a set range.
9. The system of claim 8, wherein the monitoring element comprises a camera, and wherein the camera is in communication with a control center.
10. The synchronous lifting system for construction machinery and construction equipment as claimed in any one of claims 1 to 9, wherein the control center is communicatively connected to a central processor, and the central processor remotely controls the operation of each lifting column support module through the control center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010958635.8A CN112049830A (en) | 2020-09-14 | 2020-09-14 | Synchronous lifting system for construction machinery and construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010958635.8A CN112049830A (en) | 2020-09-14 | 2020-09-14 | Synchronous lifting system for construction machinery and construction equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112049830A true CN112049830A (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010958635.8A Pending CN112049830A (en) | 2020-09-14 | 2020-09-14 | Synchronous lifting system for construction machinery and construction equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586558A (en) * | 2021-07-29 | 2021-11-02 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
-
2020
- 2020-09-14 CN CN202010958635.8A patent/CN112049830A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586558A (en) * | 2021-07-29 | 2021-11-02 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
| CN113586558B (en) * | 2021-07-29 | 2023-12-19 | 厦门安科科技有限公司 | Control method and control device for synchronous movement of jacking platform |
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