CN108975148B - Container spreader - Google Patents
Container spreader Download PDFInfo
- Publication number
- CN108975148B CN108975148B CN201811027559.8A CN201811027559A CN108975148B CN 108975148 B CN108975148 B CN 108975148B CN 201811027559 A CN201811027559 A CN 201811027559A CN 108975148 B CN108975148 B CN 108975148B
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- China
- Prior art keywords
- container
- induction
- controller
- telescopic part
- lock
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/101—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
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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
- F15B21/087—Control strategy, e.g. with block diagram
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a container spreader, which belongs to the technical field of hoisting machinery, and comprises a beam, a lifting mechanism and a lifting mechanism, wherein the beam is provided with a fixed part and a telescopic part and is driven to stretch by an oil cylinder; the four corners of the cross beam are respectively provided with a twist lock inserted into the lock holes of the four top corners of the container; the telescopic part is provided with a plurality of induction blocks which are arranged in sequence and correspond to the sizes of the containers, and the fixed part is provided with an induction switch which is used for inducing the induction blocks and transmitting induction signals to the controller; the output end of the controller is electrically connected with the control end of the electromagnetic valve, and the electromagnetic valve is connected between the hydraulic oil source and the oil cylinder. The invention can solve the problem that the production efficiency is low because the twist lock is difficult to accurately position in the process of stretching the cross beam of the traditional container spreader.
Description
Technical Field
The invention relates to the technical field of hoisting machinery, in particular to a lifting appliance for loading and unloading a container.
Background
The container spreader is a special spreader for loading and unloading containers, and the conventional container spreader comprises a beam which is provided with a fixed part and a telescopic part and is driven to be telescopic by an oil cylinder; the fixed part of the beam is connected with the suspension arm of the crane through a connecting piece; four top angles of the container are respectively provided with a lock hole; the four corners of the beam are respectively provided with a twist lock inserted into the lock hole; when the container handling device works, a driver operates and controls the opening and closing of the spin lock, and the container is handled through the suspension arm of the crane; however, in practical applications, when a driver lifts a container, the driver needs to align at least 20 meters of container locking holes with eyes, and operates the control handle little by little to continuously adjust the telescopic length of the cross beam to position the twist lock, so that the twist lock is inserted into the locking hole, and therefore, the problem that the telescopic length of the cross beam is difficult to accurately position and the production efficiency is low exists.
Disclosure of Invention
The invention provides a container spreader, which can solve the problem that the production efficiency is low because a twist lock is difficult to accurately position in the stretching process of a cross beam of the conventional container spreader.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the container spreader comprises a beam which is provided with a fixed part and a telescopic part and is driven to be telescopic by an oil cylinder; the four corners of the cross beam are respectively provided with a twist lock inserted into the lock holes of the four top corners of the container; the telescopic part is provided with a plurality of sequentially arranged induction blocks corresponding to the size of the container, and the fixed part is provided with induction switches corresponding to the induction blocks and transmitting induction signals to the controller; the output end of the controller is electrically connected with the control end of the electromagnetic valve, and the electromagnetic valve is connected between the hydraulic oil source and the oil cylinder.
In the above technical solution, a more specific technical solution may also be: the controller is an IQAN-XC 10 controller.
Further: the inductive switch is an inductive proximity switch; the induction block is a boss or a pit.
Further: when the telescopic part extends outwards completely, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 40 feet; when the telescopic part is completely retracted, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 20 feet.
Further: when the telescopic part extends out, the induction switch is close to the induction block of the fixed part, and when the induction switch is induced, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 30 feet.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. because the telescopic part of the container spreader is provided with a plurality of sequentially arranged induction blocks corresponding to the size of the container, and the fixed part is provided with induction switches corresponding to the induction blocks and transmitting induction signals to the controller; the output end of the controller is electrically connected with the control end of the electromagnetic valve, and the electromagnetic valve is connected between the hydraulic oil source and the oil cylinder; when a driver operates the telescopic part to stretch out or retract, the induction switch sequentially induces the induction blocks which are sequentially arranged, induced signals are sequentially transmitted to the controller, the controller calculates and processes the signals, and the oil port of the control electromagnetic valve is gradually closed, so that the oil cylinder drives the telescopic part to stop at a preset telescopic length, the telescopic length is accurate, the positioning of the twist lock is accurate, the twist lock can be rapidly inserted into a lock hole of a container with a corresponding size, and the working efficiency is improved.
2. Because the controller is the IQAN-XC 10 controller, the current of the counter in the controller under different values can be set to be in a parabola form, and the output current is set to be zero when the controller senses the last sensing block, so that the extending or retracting speed of the telescopic part is gradually slowed as the telescopic part approaches the preset extending length when the telescopic part extends or retracts until the preset extending length stops, the accuracy of the extending length of the telescopic part is ensured, the accurate positioning of the twist lock is further improved, the extending or retracting whole process of the telescopic part is stable and smooth, and the impact of sudden stop is avoided.
3. The inductive switch is an inductive proximity switch; the induction block is a boss or a pit; the cost performance is highest on the premise of ensuring the accuracy and reliability of signal induction and transmission.
4. When the telescopic part is completely extended, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 40 feet; when the telescopic part is completely retracted, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 20 feet; the quick and efficient hoisting of the containers with the most two specifications is ensured.
5. When the telescopic part extends out and the induction switch is induced by the induction block close to the fixed part, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 30 feet; the quick and efficient hoisting of the container with the specification of 30 feet is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the twist lock and the locking hole of the T-section of fig. 1.
Fig. 3 is an electrical control schematic block diagram of an embodiment of the present invention.
Detailed Description
The invention will be further described in detail with reference to the following examples:
the container spreader shown in fig. 1, 2 and 3 comprises a beam 1 driven to extend and retract by an oil cylinder 8, wherein the beam 1 is provided with a fixed part 11 and an extension part 12; four top corners of the container 6 are respectively provided with a lock hole 5; the four corners of the beam 1 are respectively provided with a twist lock 4 inserted into a respective lock hole 5; when the telescopic part 12 is fully extended, the twist lock 4 is positioned in a lock hole which can be inserted into a container with the specification of 40 feet; when the telescopic part 12 is fully retracted, the twist lock 4 is positioned in a lock hole which can be inserted into a container with the specification of 20 feet; the telescopic part 12 is provided with a plurality of induction blocks 3 which are arranged in sequence and correspond to the size of the container, and the induction blocks are bosses; the fixed part 12 is provided with an inductive switch 2, and the inductive switch 2 is an inductive proximity switch; when the induction switch 2 and the induction block 3 are arranged to enable the telescopic part 12 to extend out, and when the induction switch 2 is induced by the induction block 3 close to the fixed part 12, the twist lock 4 is correspondingly inserted into a lock hole 5 of a container with the specification of 30 feet; the signal output end of the inductive switch 2 is connected with the signal input end of a controller 7, the controller 7 is an IQAN-XC 10 controller, the signal output end of the controller 7 is electrically connected with the control end of an electromagnetic valve 9, and the electromagnetic valve 9 is connected between a hydraulic oil source 10 and an oil cylinder 8.
Before working, the currents of different values of a counter in the IQAN-XC 10 controller are set to be in a parabolic form, and the output current is set to be zero when the current senses the last sensing block. When the telescopic part is operated by a driver to extend or retract, the induction switch sequentially induces the induction blocks which are sequentially arranged, induced signals are sequentially transmitted to the controller, and the controller calculates and processes the signals to ensure that the oil port of the control electromagnetic valve is gradually reduced from the maximum opening degree, so that the extending speed of the telescopic part is gradually reduced as the end of the telescopic part is closer to the preset length, and finally the telescopic part is stopped and positioned at the preset length. The telescopic length of the container is accurate, the rotary lock is accurately positioned, the rotary lock is rapidly inserted into a lock hole of a container with a corresponding size, the working efficiency is improved, the whole process of extension or retraction of the telescopic part is stable and smooth, and sudden stop impact is avoided.
Example two
The induction blocks are pits; the rest is the same as the first embodiment.
Claims (4)
1. A container spreader comprises a beam which is provided with a fixed part and a telescopic part and is driven to be telescopic by an oil cylinder; the four corners of the cross beam are respectively provided with a twist lock inserted into the lock holes of the four top corners of the container; the method is characterized in that: the telescopic part is provided with a plurality of induction blocks which are arranged in sequence and correspond to the sizes of the containers, and the fixed part is provided with an induction switch which is used for inducing the induction blocks and transmitting induction signals to the controller; the output end of the controller is electrically connected with the control end of the electromagnetic valve, and the electromagnetic valve is connected between a hydraulic oil source and the oil cylinder; the controller is an IQAN-XC 10 controller; the currents of the counters in the controller under different values are set to be in a parabolic form, and the output current is set to be zero when the counters sense the last sensing block.
2. The container spreader of claim 1, wherein: the inductive switch is an inductive proximity switch; the induction block is a boss or a pit.
3. The container spreader according to claim 1 or 2, wherein: when the telescopic part extends outwards completely, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 40 feet; when the telescopic part is completely retracted, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 20 feet.
4. The container spreader of claim 3, wherein: when the telescopic part extends out, the induction switch is close to the induction block of the fixed part, and when the induction switch is induced, the twist lock is correspondingly inserted into a lock hole of a container with the specification of 30 feet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027559.8A CN108975148B (en) | 2018-09-04 | 2018-09-04 | Container spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027559.8A CN108975148B (en) | 2018-09-04 | 2018-09-04 | Container spreader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108975148A CN108975148A (en) | 2018-12-11 |
| CN108975148B true CN108975148B (en) | 2020-02-25 |
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ID=64544607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811027559.8A Active CN108975148B (en) | 2018-09-04 | 2018-09-04 | Container spreader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108975148B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475122A (en) * | 2009-01-20 | 2009-07-08 | 常州市南港港口机械有限公司 | Locking and unlocking mechanism of electric container sling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147418C (en) * | 1999-05-21 | 2004-04-28 | 石川岛播磨重工业株式会社 | Spreader of container crane |
| CN204751867U (en) * | 2015-05-20 | 2015-11-11 | 河南省恒远起重机械集团有限公司 | Retractable sling for container |
| CN105565188B (en) * | 2015-12-29 | 2018-04-13 | 中联重科股份有限公司 | Structure and method for preventing oil cylinder from rushing out of knuckle arm and suspension arm |
| CN107539880A (en) * | 2017-09-30 | 2018-01-05 | 南京中高知识产权股份有限公司 | Handling deviation-rectifying system and its method of work suitable for self-correction unbalance loading value |
| CN108217420B (en) * | 2018-02-07 | 2020-05-08 | 中铁科工集团轨道交通装备有限公司 | Telescopic container spreader with follow-up supporting ring |
-
2018
- 2018-09-04 CN CN201811027559.8A patent/CN108975148B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475122A (en) * | 2009-01-20 | 2009-07-08 | 常州市南港港口机械有限公司 | Locking and unlocking mechanism of electric container sling |
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| Publication number | Publication date |
|---|---|
| CN108975148A (en) | 2018-12-11 |
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Effective date of registration: 20200623 Address after: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Co-patentee after: Guangxi Zhi Tuo Technology Co.,Ltd. Patentee after: GUANGXI LIUGONG MACHINERY Co.,Ltd. Address before: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Patentee before: GUANGXI LIUGONG MACHINERY Co.,Ltd. |