CN210050135U - Differential device of hydraulic control system for lifting compression station box body - Google Patents
Differential device of hydraulic control system for lifting compression station box body Download PDFInfo
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- CN210050135U CN210050135U CN201920985392.XU CN201920985392U CN210050135U CN 210050135 U CN210050135 U CN 210050135U CN 201920985392 U CN201920985392 U CN 201920985392U CN 210050135 U CN210050135 U CN 210050135U
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
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- 238000011897 real-time detection Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 6
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- 230000001360 synchronised effect Effects 0.000 description 3
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Abstract
The utility model discloses a compression station box lifts hydraulic control system differential gear, including box, box lift hydraulic control system, its characterized in that still includes digital solenoid valve, displacement sensor, controller, digital solenoid valve locates that the oil circuit of hydro-cylinder advances, the exit, and this digital solenoid valve's A interface links to each other with the rodless chamber of hydro-cylinder, and the B interface links to each other with the pole chamber that has of hydro-cylinder, and the P interface links to each other with the oil tank through advancing oil pipe, and the T interface links to each other with the oil tank through returning oil pipe, displacement sensor locates on the hydro-cylinder for the working distance of real-time detection hydro-cylinder piston rod, the controller is associative with displacement sensor and digital solenoid valve for detect data, adjustment digital solenoid valve flow according to displacement sensor. The utility model discloses a digital solenoid valve, displacement sensor, controller have realized keeping the box to keep the level not to incline at the in-process that lifts, prevent the dead phenomenon of mechanical card, have reduced the noise simultaneously, have improved operating personnel's operational environment.
Description
Technical Field
The utility model relates to a rubbish compression equipment technical field especially relates to a compression station box lifts hydraulic control system differential gear.
Background
In a fixed garbage compression station, the total weight of the garbage in a box body and the box exceeds 20 tons, the up-down lifting movement stroke exceeds 3200mm, and the lifting process is required to be horizontal and stable; the existing fixed type garbage compression station driving box body lifting device adopts four identical oil cylinders, and the oil cylinders are required to move synchronously; the motion of the oil cylinder is realized by controlling the oil cylinder by a hydraulic valve to realize synchronous motion. In the existing method, a synchronous hydraulic motor is adopted to control the movement of an oil cylinder to realize synchronization, as shown in fig. 2; however, in the actual process, the phenomena of box body inclination and mechanical jamming often occur, and the noise is large, so that the physical health of operators is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a compression station box lifts hydraulic control system differential gear, the device adopt digital solenoid valve, displacement sensor, controller, have realized keeping the box to keep the level not to incline at the lift in-process, prevent the dead phenomenon of mechanical card, have reduced the noise simultaneously, have improved operating personnel's operational environment.
In order to achieve the above object, the utility model provides a differential device of a hydraulic control system for lifting a box body of a compression station, which comprises a box body and a hydraulic control system for lifting the box body, wherein the hydraulic control system for lifting the box body comprises four oil cylinders with the same model and specification, four oil cylinder arrays are uniformly arranged at two sides of the box body, the end parts of the oil cylinders are fixedly connected with the bottom of a pit, and the end parts of piston rods are fixedly connected with the box body, and is characterized by further comprising a digital electromagnetic valve, a displacement sensor and a controller, wherein the digital electromagnetic valve is arranged at the inlet and the outlet of an oil circuit of the oil cylinders, an A interface of the digital electromagnetic valve is connected with a rodless cavity of the oil cylinders, a B interface is connected with a rod cavity of the oil cylinders, a P interface is connected with the oil tank through an oil inlet pipe, a T interface is connected with the oil tank through an oil return pipe, the displacement sensor is, the controller is connected with the displacement sensor and the digital electromagnetic valve and used for comparing the running distances of the piston rods of the four oil cylinders detected by the displacement sensor in real time and adjusting the current signals of the digital electromagnetic valve, so that the opening degree of the valve core of the digital electromagnetic valve is controlled, the speeds of the four oil cylinders are consistent, and the level of the box body is ensured.
Further, the utility model provides a lift hydraulic control system differential device still includes pressure sensor, pressure sensor is equipped with four, locates on four hydro-cylinders respectively for whether the oil pressure value that detects four hydro-cylinder rodless intracavity reaches predetermined pressure value, pressure sensor is associative with the controller, and when the oil pressure value of hydro-cylinder rodless intracavity had reached predetermined pressure value, the controller was adjusted the opening degree of digital solenoid valve case, and the control corresponds digital solenoid valve's flow.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the opening degree of the valve core of the digital electromagnetic valve is in one-to-one correspondence with different obtained current signals, so that the oil passing amount of the digital electromagnetic valve is changed. When the up and down action signals of the box body are sent, namely the four digital electromagnetic valves in the figure 1 simultaneously obtain electric signals, the four digital electromagnetic valves are respectively electrified, the valve core is opened, system pressure oil enters the oil cylinder through the digital electromagnetic valves, and meanwhile, oil in the other cavity of the oil cylinder is communicated with an oil return pipe of the oil tank through the digital electromagnetic valves and returns to the oil tank; in the motion process, the four displacement sensors detect the running distances of the four oil cylinders in real time, data are transmitted to the controller, the controller continuously adjusts current signals to the digital electromagnetic valve through the mutual comparison of the four data, the moving speeds of the four oil cylinders are the same, the box body level is guaranteed, the stability of system operation is improved, the box body is prevented from inclining, the phenomenon of mechanical clamping is avoided, and meanwhile, the huge noise caused by the mechanical clamping is reduced.
2. The pressure sensor is adopted to detect the oil pressure in the rodless cavity of the oil cylinder in real time, and the controller is used to control the flow of the digital electromagnetic valve, so that the running reliability and the running accuracy of the system are improved.
Drawings
Fig. 1 is a schematic view of the principle and structure of the embodiment of the present invention;
fig. 2 is a schematic diagram of a conventional structure.
In the figure: 1. the system comprises an oil cylinder, 2, a synchronous hydraulic motor, 3, a digital electromagnetic valve, 4, an oil return pipe, 5, an oil inlet pipe, 6, a displacement sensor, 7, a pressure sensor, 8 and a controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, the embodiment of the utility model comprises a box body, a box body lifting hydraulic control system, the box body lifting hydraulic control system comprises four oil cylinders 1 with the same model and specification, a digital solenoid valve 3, a displacement sensor 6 and a controller 8, the four oil cylinders 1 are uniformly arranged on two sides of the box body in an array, the end part of the oil cylinder 1 is fixedly connected with the bottom of a pit, the end part of a piston rod is fixedly connected with two sides of the box body, the digital solenoid valve 3 is arranged at the oil inlet and the oil outlet of the oil cylinder 1, an A interface of the digital solenoid valve 3 is connected with a rodless cavity of the oil cylinder 1, a B interface is connected with a rod cavity of the oil cylinder 1, a P interface is connected with an oil tank through an oil inlet pipe 5, a T interface is connected with the oil tank through an oil return pipe 4, the displacement sensor 6 is provided with four oil cylinders 1 respectively, the displacement sensor 6 detects the running distance of a piston rod corresponding to, the device is used for comparing the running distances of the piston rods of the four oil cylinders 1 detected by the displacement sensor 3 in real time and adjusting the current signals of the digital electromagnetic valve 3, so that the opening degree of the valve core of the digital electromagnetic valve 3 is controlled, the speeds of the four oil cylinders 1 are consistent, and the level of a box body is ensured.
The working mode of the embodiment is as follows: in the figure 1, when a box body lifting action signal is given, namely four digital electromagnetic valves 3 in the figure 1 simultaneously obtain a lifting electric signal, a valve core is opened, system pressure oil enters the digital electromagnetic valve 3 from a port P, exits from a port A of the digital electromagnetic valve and enters a rodless cavity of an oil cylinder 1 through an oil pipe, meanwhile, oil in a rod cavity of the oil cylinder 1 enters the digital electromagnetic valve 3 from a port B of the digital electromagnetic valve through a pipeline, exits from a port T of the digital electromagnetic valve and is communicated with an oil return pipe 4 of the oil tank to return to the oil tank, and a piston rod of the oil cylinder 1 extends out to push the box; when a box body descending action signal is given, namely four digital electromagnetic valves 3 in the figure 1 simultaneously obtain descending electric signals, the valve core is opened, system pressure oil enters the digital electromagnetic valve 3 from a port P, comes out from a port B of the digital electromagnetic valve and then enters a rod cavity of the oil cylinder 1 through an oil pipe, meanwhile, oil in a rodless cavity of the oil cylinder 1 enters the digital electromagnetic valve 3 from a port A of the digital electromagnetic valve through a pipeline, comes out from a port T of the digital electromagnetic valve and is communicated with an oil return pipe 4 of the oil tank to return to the oil tank, and a piston rod of the oil cylinder 1 is withdrawn to push. In the motion process, four displacement sensor 6 real-time detection four hydro-cylinders 1's functioning distance to give controller 8 with data transmission, controller 8 is compared each other through four data, incessantly adjusts current signal to digital solenoid valve 3, makes four hydro-cylinders 1 functioning speed the same, guarantees the box level, has improved the stability of system operation, prevents that the box slope, and the dead phenomenon of mechanical card has reduced the huge noise because of the dead production of mechanical card simultaneously.
Preferably, the present embodiment further includes four pressure sensors 7, where the four pressure sensors 7 are respectively disposed at the lower ends of the four oil cylinders 1 and used for detecting whether the oil pressure value in the rodless cavity of the four oil cylinders 1 reaches a predetermined pressure value, and the pressure sensors 7 are connected with the controller 8, and when the oil pressure value in the rodless cavity of the oil cylinders 1 reaches the predetermined pressure value, the controller 8 adjusts the opening degree of the valve core of the digital electromagnetic valve 3 and controls the flow rate of the corresponding digital electromagnetic valve 3, so as to reduce the pressure of the whole hydraulic system and improve the reliability and accuracy of the system operation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A differential device of a compression station box lifting hydraulic control system comprises a box body and a box body lifting hydraulic control system, wherein the box body lifting hydraulic control system comprises four oil cylinders with the same model and specification, the four oil cylinders are uniformly distributed on two sides of the box body in an array manner, the end parts of the oil cylinders are fixedly connected with the bottom of a pit, and the end parts of piston rods are fixedly connected with the box body, the differential device is characterized by further comprising a digital electromagnetic valve, a displacement sensor and a controller, the digital electromagnetic valve is arranged at an oil inlet and an oil outlet of the oil cylinders, an interface A of the digital electromagnetic valve is connected with a rodless cavity of the oil cylinders, an interface B of the digital electromagnetic valve is connected with a rod cavity of the oil cylinders, an interface P of the digital electromagnetic valve is connected with an oil tank through an oil inlet pipe, an interface T of the digital electromagnetic valve is connected with the oil tank through an oil return pipe, the, the controller is connected with the displacement sensor and the digital electromagnetic valve and used for comparing the running distances of the piston rods of the four oil cylinders detected by the displacement sensor in real time and adjusting the current signals of the digital electromagnetic valve, so that the opening degree of the valve core of the digital electromagnetic valve is controlled, the speeds of the four oil cylinders are consistent, and the level of the box body is ensured.
2. The differential device of a compression station box lifting hydraulic control system of claim 1, wherein: the digital electromagnetic valve is characterized by further comprising four pressure sensors, wherein the four pressure sensors are respectively arranged on the four oil cylinders and used for detecting whether the oil pressure value in the rodless cavity of the four oil cylinders reaches a preset pressure value or not, the pressure sensors are connected with the controller, and when the oil pressure value in the rodless cavity of the oil cylinders reaches the preset pressure value, the controller adjusts the opening degree of the valve core of the digital electromagnetic valve and controls the flow of the corresponding digital electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985392.XU CN210050135U (en) | 2019-06-27 | 2019-06-27 | Differential device of hydraulic control system for lifting compression station box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985392.XU CN210050135U (en) | 2019-06-27 | 2019-06-27 | Differential device of hydraulic control system for lifting compression station box body |
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| Publication Number | Publication Date |
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| CN210050135U true CN210050135U (en) | 2020-02-11 |
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| CN201920985392.XU Expired - Fee Related CN210050135U (en) | 2019-06-27 | 2019-06-27 | Differential device of hydraulic control system for lifting compression station box body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751119A (en) * | 2022-05-09 | 2022-07-15 | 浙江联运环境工程股份有限公司 | Garbage classification recycling bin compression mechanism with double drive units and leveling method thereof |
-
2019
- 2019-06-27 CN CN201920985392.XU patent/CN210050135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114751119A (en) * | 2022-05-09 | 2022-07-15 | 浙江联运环境工程股份有限公司 | Garbage classification recycling bin compression mechanism with double drive units and leveling method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |