CN111056334A - Self-adaptive loading platform for integral loading of container - Google Patents
Self-adaptive loading platform for integral loading of container Download PDFInfo
- Publication number
- CN111056334A CN111056334A CN201911410260.5A CN201911410260A CN111056334A CN 111056334 A CN111056334 A CN 111056334A CN 201911410260 A CN201911410260 A CN 201911410260A CN 111056334 A CN111056334 A CN 111056334A
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- Prior art keywords
- cylinder
- leg synchronous
- main cylinder
- synchronous
- valve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G67/00—Loading or unloading vehicles
- B65G67/02—Loading or unloading land vehicles
- B65G67/04—Loading land vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/22—Horizontal loading or unloading platforms
- B65G69/24—Horizontal loading or unloading platforms having platform level adjusting 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
- 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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- 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 an integral self-adaptive loading platform for loading containers, which comprises a conveying mechanism, wherein the conveying mechanism comprises a rack, the rack is provided with a conveying belt, and the integral self-adaptive loading platform further comprises: the front supporting leg synchronous oil cylinder and the rear supporting leg synchronous oil cylinder are respectively arranged at the discharge end and the feed end of the conveying mechanism; the hydraulic station is connected to the front supporting leg synchronous oil cylinder and the rear supporting leg synchronous oil cylinder in parallel; and the pistons of the front leg synchronous main cylinder and the rear leg synchronous main cylinder are provided with through grooves in a penetrating manner, and the through grooves are provided with the main cylinder and the auxiliary cylinder synchronous valves 8. The main cylinder synchronizing valve and the auxiliary cylinder synchronizing valve comprise a group of check valves which are arranged up and down symmetrically. The check valve comprises a valve seat, a valve core and springs, and the springs of the group of check valves face to the center of the notch respectively. The tail end of the valve core is arranged on the surface of the piston in a protruding mode.
Description
Technical Field
The invention relates to the field of hydraulic systems for container loading, in particular to an integral container loading self-adaptive loading platform.
Background
The container is a large-sized loading container with certain strength, rigidity and specification and specially used for turnover. The container is used for transferring goods, the goods can be directly loaded in the warehouse of a shipper and unloaded in the warehouse of a consignee, and the goods do not need to be taken out from the container for reloading when vehicles and ships are changed midway.
In industrial logistics, the transport of products to a warehouse (container) is carried out by first loading the load on a transfer device on a lifting platform, and by means of the integrated transfer device, the load is brought into the warehouse together with the transfer device. Because the lift platform is bulky, be used for both the great goods of consignment weight and volume. Each hydraulic module of the lifting platform needs to be ensured to be synchronous. The difficulty of synchronization of each hydraulic module is two, namely how to synchronously operate the front and rear groups of hydraulic cylinders and how to synchronously operate the same group of hydraulic cylinders. In particular, as the load gradually enters the cargo compartment (container), the cargo compartment gradually descends to form a certain fall with the lifting platform. The formation of a drop can damage the load cell and the transfer element during the transfer process.
The invention aims to design an integrated container loading self-adaptive loading platform aiming at the problems in the prior art.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an integral container loading self-adaptive loading platform, which can effectively solve the problems in the prior art.
The technical scheme of the invention is as follows:
the utility model provides an integral loading of container is with self-adaptation loading platform, contains transport mechanism, transport mechanism contains the frame, the frame is provided with the conveyer belt, further contains:
the front leg synchronous oil cylinder and the rear leg synchronous oil cylinder are respectively arranged at the discharge end and the feed end of the conveying mechanism, the front leg synchronous oil cylinder comprises a front leg synchronous main cylinder and a front leg synchronous auxiliary cylinder, the front leg synchronous main cylinder and the front leg synchronous auxiliary cylinder are connected in series, the rear leg synchronous oil cylinder comprises a rear leg synchronous main cylinder and a rear leg synchronous auxiliary cylinder, and the rear leg synchronous main cylinder and the rear leg synchronous auxiliary cylinder are connected in series;
the hydraulic station is connected to the front supporting leg synchronous oil cylinder and the rear supporting leg synchronous oil cylinder in parallel, and specifically comprises the following steps: the oil outlets of the hydraulic stations are connected in parallel to the rodless cavities of the rear leg synchronous main cylinder and the front leg synchronous main cylinder, and the oil return ports of the hydraulic stations are connected in parallel to the rod cavities of the rear leg synchronous auxiliary cylinder and the front leg synchronous auxiliary cylinder; the oil outlet and the oil return port of the hydraulic station are respectively provided with a hydraulic control one-way valve;
and the pistons of the front leg synchronous main cylinder and the rear leg synchronous main cylinder are provided with through grooves in a penetrating manner, and the through grooves are provided with the main cylinder and the auxiliary cylinder synchronous valves 8. The main cylinder synchronizing valve and the auxiliary cylinder synchronizing valve comprise a group of check valves which are arranged up and down symmetrically. The check valve comprises a valve seat, a valve core and springs, and the springs of the group of check valves face to the center of the notch respectively. The tail end of the valve core is arranged on the surface of the piston in a protruding mode.
Further, a rod cavity of the rear leg synchronous main cylinder is connected with a rodless cavity of the rear leg synchronous auxiliary cylinder; and the rod cavity of the front leg synchronous main cylinder is connected with the rodless cavity of the front leg synchronous auxiliary cylinder.
Furthermore, the working areas of the rear leg synchronous main cylinder, the rear leg synchronous auxiliary cylinder, the front leg synchronous main cylinder and the front leg synchronous auxiliary cylinder are all equal; the volume of the rod cavity of the rear leg synchronous main cylinder is equal to the volume of the rodless cavity of the rear leg synchronous auxiliary cylinder, and the volume of the rod cavity of the front leg synchronous main cylinder is equal to the volume of the rodless cavity of the front leg synchronous auxiliary cylinder.
Further, the rear supporting leg synchronous main cylinder and the front supporting leg synchronous main cylinder are provided with explosion-proof valves.
Furthermore, a bidirectional pressure maintaining electromagnetic valve is connected between the rodless cavities of the front supporting leg synchronous main cylinder and the rear supporting leg synchronous main cylinder.
Accordingly, the present invention provides the following effects and/or advantages:
the invention can work in the following four states, 1, compensation error of main and auxiliary cylinders; 2. the front cylinder and the rear cylinder are synchronously lifted; 3. the front cylinder is synchronous with the warehouse; 4. the front cylinder and the rear cylinder fall back synchronously. The height control of four hydraulic cylinders in a hydraulic system can be met, the specific requirements in the use process are met, and the follow-up action of the lifting platform is reliable, efficient and accurate.
The main cylinder is provided with the main cylinder synchronizing valve and the auxiliary cylinder synchronizing valve, and the main cylinder and the auxiliary cylinder can automatically adjust the height after reaching the lowest point and the highest point respectively through the ingenious arrangement of the two one-way valves and the arrangement that the one-way valves are higher than the surface of the piston. The traditional synchronous control part of the main cylinder and the auxiliary cylinder needs to drill holes on the side surfaces of the main cylinder and the auxiliary cylinder and connect corresponding pipelines to the drill holes, so that the aims of continuously feeding/discharging oil and the like when the main cylinder and the auxiliary cylinder move to the extreme are fulfilled. The main and auxiliary cylinder synchronous valves do not need to drill holes on the side surfaces of the oil cylinders, so that the service life of each hydraulic cylinder can be effectively ensured, and the hydraulic cylinders and each pipeline are prevented from bursting.
The invention uses few hydraulic components and has simple system control mode. The traditional hydraulic system applied to the container integral type loading self-adaptive platform needs a large number of sensors, control valves and the like.
Two-way pressure maintaining solenoid valves are connected between the rodless cavities of the front leg synchronous main cylinder and the rear leg synchronous main cylinder, and the electromagnet of the two-way pressure maintaining solenoid valves is electrified to enable the rodless cavities of the front leg synchronous main cylinder and the rear leg synchronous main cylinder to adapt to corresponding floating lifting caused by different load distribution on the platform.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic diagram of the connection of the hydraulic station.
FIG. 4 is a schematic structural diagram of a main cylinder synchronizing valve and an auxiliary cylinder synchronizing valve.
Fig. 5 is a partially enlarged view of a portion a of fig. 4.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 1-5, an adaptive loading platform for container integral loading comprises a conveying mechanism 10, wherein the conveying mechanism 10 comprises a frame, the frame is provided with a conveying belt, and the adaptive loading platform further comprises:
the front supporting leg synchronous oil cylinder 6 and the rear supporting leg synchronous oil cylinder 7 are respectively arranged at the discharge end and the feed end of the conveying mechanism, the front supporting leg synchronous oil cylinder 6 comprises a front supporting leg synchronous main cylinder 61 and a front supporting leg synchronous auxiliary cylinder 62, the front supporting leg synchronous main cylinder 61 and the front supporting leg synchronous auxiliary cylinder 62 are connected in series, the rear supporting leg synchronous oil cylinder 7 comprises a rear supporting leg synchronous main cylinder 71 and a rear supporting leg synchronous auxiliary cylinder 72, and the rear supporting leg synchronous main cylinder 71 and the rear supporting leg synchronous auxiliary cylinder 72 are connected in series;
the hydraulic station 1 is connected to a front supporting leg synchronous oil cylinder 6 and a rear supporting leg synchronous oil cylinder 7 in parallel, and specifically comprises the following steps: the oil outlets of the hydraulic station 1 are connected in parallel to the rodless cavities of the rear leg synchronous master cylinder 71 and the front leg synchronous master cylinder 61, and the oil return ports of the hydraulic station 1 are connected in parallel to the rod cavities of the rear leg synchronous auxiliary cylinder 72 and the front leg synchronous auxiliary cylinder 62; an oil outlet and an oil return port of the hydraulic station 1 are respectively provided with a hydraulic control one-way valve 2;
and the pistons of the main and auxiliary cylinder synchronous valves 8, the front supporting leg synchronous main cylinder 61 and the rear supporting leg synchronous main cylinder 71 are provided with through grooves in a penetrating manner, and the through grooves are provided with the main and auxiliary cylinder synchronous valves 8. The main cylinder synchronization valve 8 and the auxiliary cylinder synchronization valve 8 comprise a group of check valves 9 which are arranged up and down symmetrically. The check valve 9 comprises a valve seat 91, a valve core 92 and a spring 93, and the springs 93 of the set of check valves 9 face the central positions of the notches respectively. The end of the valve core 92 is protrudingly arranged on the surface of the piston.
Further, the rod chamber of the rear leg synchronization main cylinder 71 is connected with the rodless chamber of the rear leg synchronization sub cylinder 72; the rod chamber of the front leg synchronous master cylinder 61 is connected with the rodless chamber of the front leg synchronous slave cylinder 62.
Further, the working areas of the rear leg synchronous main cylinder 71, the rear leg synchronous auxiliary cylinder 72, the front leg synchronous main cylinder 61 and the front leg synchronous auxiliary cylinder 62 are all equal; the volume of the rod cavity of the rear leg synchronous master cylinder 71 is equal to the volume of the rodless cavity of the rear leg synchronous auxiliary cylinder 72, and the volume of the rod cavity of the front leg synchronous master cylinder 61 is equal to the volume of the rodless cavity of the front leg synchronous auxiliary cylinder 62.
Further, the rear leg synchronous master cylinder 71 and the front leg synchronous master cylinder 61 are provided with an explosion-proof valve 5.
Further, a bidirectional pressure maintaining solenoid valve 4 is connected between the rod-free chambers of the front leg synchronous master cylinder 61 and the rear leg synchronous master cylinder 71.
The working principle is as follows:
the working state of the present embodiment has four kinds:
1. and the main cylinder and the auxiliary cylinder compensate errors.
After the device is used for a period of time, the main cylinder and the auxiliary cylinder are asynchronous due to the influences of pressure difference, errors and the like, and the specific phenomenon is that the main cylinder and the auxiliary cylinder are higher or lower. When the main cylinder on the same side is regulated to run to the lowest point when the main cylinder does not carry cargos, in the descending process of the main cylinder, oil of the hydraulic station 1 flows to the rod cavity of the main cylinder from the rodless cavity of the auxiliary cylinder, the oil pressure acts on the one-way valve 9 at the upper end of the main and auxiliary cylinder synchronous valve 8, the one-way valve 9 at the upper end of the main and auxiliary cylinder synchronous valve 8 is conducted, and the one-way valve 9 at the lower end of the main and auxiliary cylinder synchronous valve 8 is not conducted. After the master cylinder is lowered to the lowest point, the end of the valve core 92 is protruded on the surface of the piston, and the valve core 91 is contacted with the bottom of the master cylinder, and then the check valve 9 at the lower end of the master-slave cylinder synchronous valve 8 is conducted. At this time, the main and auxiliary cylinder synchronous valve 8 is conducted, if the height of the auxiliary cylinder is greater than that of the main cylinder, after the main and auxiliary cylinder synchronous valve 8 is conducted, the oil in the rodless cavity of the auxiliary cylinder continuously flows to the rod cavity of the main cylinder and returns to the hydraulic station 1, and the auxiliary cylinder can continuously run to the bottom.
The principle of adjusting the master cylinder on the same side to the highest point is opposite to the principle of adjusting the master cylinder on the same side to the lowest point, and is not described in detail herein.
2. The front and rear cylinders are lifted and lowered synchronously.
When a cargo compartment (container) reaches a designated point, the hydraulic station 1 is started, the electromagnet Y4 is powered on, the system establishes pressure, then the Y2 in the electromagnetic directional valve is powered on, pressure oil enters a rodless cavity in a main cylinder of a front leg and a rear leg synchronous oil cylinder through the hydraulic station 1, the synchronous motor 3, the hydraulic control one-way valve 2 and the explosion-proof valve 5, a piston is pushed to ascend, and when a lifting platform ascends to be consistent with the height of the cargo compartment (container), the electromagnet Y4 and the Y2 are powered off, and the electromagnetic directional valve returns to a middle hydraulic system for unloading. The hydraulic control one-way valve 2 is firmly locked to keep the height of the lifting platform.
3. The front cylinder is synchronous with the warehouse.
As the load gradually enters the warehouse (container), the warehouse will gradually descend to form a certain fall with the lifting platform. After the drop is formed, the electromagnet Y3 of the two-way pressure maintaining solenoid valve 4 is electrified, the rodless cavities of the main cylinders of the front leg and the rear leg synchronous cylinders are communicated, oil liquid loaded on the rodless cavity of the main cylinder of the front leg synchronous cylinder flows into the rodless cavity of the main cylinder of the rear leg synchronous cylinder, the piston of the front leg synchronous cylinder is lowered, the piston of the rear leg synchronous cylinder is raised, and after the drop is eliminated, the electromagnet Y3 of the two-way pressure maintaining solenoid valve 4 is deenergized, so that the height of the lifting platform is maintained. So that the load unit and the transferring element are not damaged during the transferring process.
4. The front cylinder and the rear cylinder fall back synchronously.
When the load and the transfer equipment completely enter the cargo compartment, the electromagnet Y3 of the two-way pressure maintaining solenoid valve 4 is electrified, the rodless cavities of the main cylinders of the front leg and the rear leg synchronous oil cylinders are communicated, the piston of the front leg synchronous oil cylinder is lifted under the action of self weight, the piston of the rear leg synchronous oil cylinder is lowered, and the balance point is obtained again. The front and rear legs rebalance the rear electromagnet Y3 and are de-energized. The height of the platform is adjusted to be consistent with that of the cargo warehouse (container) by controlling the electrification and the power loss of the Y1 and the Y2 of the electromagnetic directional valves, so that the transfer element is not damaged by the fall of the platform in the process of exiting the cargo warehouse (container).
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides an integral loading of container is with self-adaptation loading platform contains transport mechanism, transport mechanism contains the frame, the frame is provided with the conveyer belt, its characterized in that: further comprising:
the front leg synchronous oil cylinder and the rear leg synchronous oil cylinder are respectively arranged at the discharge end and the feed end of the conveying mechanism, the front leg synchronous oil cylinder comprises a front leg synchronous main cylinder and a front leg synchronous auxiliary cylinder, the front leg synchronous main cylinder and the front leg synchronous auxiliary cylinder are connected in series, the rear leg synchronous oil cylinder comprises a rear leg synchronous main cylinder and a rear leg synchronous auxiliary cylinder, and the rear leg synchronous main cylinder and the rear leg synchronous auxiliary cylinder are connected in series;
the hydraulic station is connected to the front supporting leg synchronous oil cylinder and the rear supporting leg synchronous oil cylinder in parallel;
and the pistons of the front leg synchronous main cylinder and the rear leg synchronous main cylinder are provided with through grooves in a penetrating manner, and the through grooves are provided with the main cylinder and the auxiliary cylinder synchronous valves.
2. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the rod cavity of the rear leg synchronous main cylinder is connected with the rodless cavity of the rear leg synchronous auxiliary cylinder; and the rod cavity of the front leg synchronous main cylinder is connected with the rodless cavity of the front leg synchronous auxiliary cylinder.
3. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the working areas of the rear supporting leg synchronous main cylinder, the rear supporting leg synchronous auxiliary cylinder, the front supporting leg synchronous main cylinder and the front supporting leg synchronous auxiliary cylinder are equal.
4. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the volume of the rod cavity of the rear leg synchronous main cylinder is equal to the volume of the rodless cavity of the rear leg synchronous auxiliary cylinder, and the volume of the rod cavity of the front leg synchronous main cylinder is equal to the volume of the rodless cavity of the front leg synchronous auxiliary cylinder.
5. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the rear supporting leg synchronous main cylinder and the front supporting leg synchronous main cylinder are provided with explosion-proof valves.
6. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the oil outlets of the hydraulic station are connected in parallel to the rodless cavities of the rear leg synchronous main cylinder and the front leg synchronous main cylinder, and the oil return ports of the hydraulic station are connected in parallel to the rod cavities of the rear leg synchronous auxiliary cylinder and the front leg synchronous auxiliary cylinder.
7. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: and the oil outlet and the oil return port of the hydraulic station are respectively provided with a hydraulic control one-way valve.
8. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: the main cylinder synchronizing valve and the auxiliary cylinder synchronizing valve comprise a group of check valves which are arranged up and down symmetrically.
9. The integrated loading self-adaptive loading platform for the container according to claim 8, wherein: the check valve comprises a valve seat, a valve core and springs, the springs of the check valve group face to the center of the notch respectively, and the tail end of the valve core is arranged on the surface of the piston in a protruding mode.
10. The integrated loading self-adaptive loading platform for the container according to claim 1, wherein: and a bidirectional pressure maintaining electromagnetic valve is connected between the rodless cavities of the front leg synchronous main cylinder and the rear leg synchronous main cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410260.5A CN111056334B (en) | 2019-12-31 | 2019-12-31 | Self-adaptive loading platform for integral loading of container |
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| CN201911410260.5A CN111056334B (en) | 2019-12-31 | 2019-12-31 | Self-adaptive loading platform for integral loading of container |
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| CN111056334A true CN111056334A (en) | 2020-04-24 |
| CN111056334B CN111056334B (en) | 2021-10-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753287A (en) * | 2022-04-22 | 2022-07-15 | 徐州徐工环境技术有限公司 | Operation method of wall surface cleaning vehicle |
| CN117267192A (en) * | 2023-11-07 | 2023-12-22 | 成都物天物联网科技有限责任公司 | Synchronous lifting system of vehicle-mounted exchange box |
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