CN202864766U - Overload warning control device of straight arm-type lorry-mounted crane - Google Patents

Overload warning control device of straight arm-type lorry-mounted crane Download PDF

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Publication number
CN202864766U
CN202864766U CN 201220141774 CN201220141774U CN202864766U CN 202864766 U CN202864766 U CN 202864766U CN 201220141774 CN201220141774 CN 201220141774 CN 201220141774 U CN201220141774 U CN 201220141774U CN 202864766 U CN202864766 U CN 202864766U
Authority
CN
China
Prior art keywords
relay
coil
crane
open contact
electric appliance
Prior art date
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.)
Expired - Fee Related
Application number
CN 201220141774
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Chinese (zh)
Inventor
刘勇
咸士玉
宋永忠
王丽
宋惠强
牛小军
贾敏
谢双华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Changzhi Qinghua Machinery Factory
Original Assignee
China Academy of Launch Vehicle Technology CALT
Changzhi Qinghua Machinery Factory
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Filing date
Publication date
Application filed by China Academy of Launch Vehicle Technology CALT, Changzhi Qinghua Machinery Factory filed Critical China Academy of Launch Vehicle Technology CALT
Priority to CN 201220141774 priority Critical patent/CN202864766U/en
Application granted granted Critical
Publication of CN202864766U publication Critical patent/CN202864766U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an overload warning control device of a straight arm-type lorry-mounted crane, and belongs to the technical field of overload warning control of the straight arm-type lorry-mounted crane. The technical problem to be solved is to provide the overload warning control device of the straight arm-type lorry-mounted crane capable of automatically alarming and restricting actions when the straight arm-type lorry-mounted crane is in an overload work state. The overload warning control device adopts the technical scheme that signal output ports of an overwinding sensor, a length angle sensor and a pin shaft sensor are connected with a signal input port of a load moment limiter host computer; a communication port of the load moment limiter host computer is connected with the communication port of an electric appliance control box, and a power supply input end of the electric appliance control box is connected with a power supply. The overload warning control device of the straight arm-type lorry-mounted crane is applied to a lorry-mounted crane and an auto crane.

Description

Straight arm type lorry-mounted crane overload alarming control device
Technical field
The utility model straight arm type lorry-mounted crane overload alarming control device belongs to straight arm type lorry-mounted crane overload warning control technology field.
Background technology
The straight arm type lorry-mounted crane is used very extensive at present, but in use because overload problems inevitably can appear in the factors such as environment or operating personal, the producer that has solves overload problems by the safety factor that increases the hoisting crane arm of force, but this approach can form in fact the large ton small tenon of starting parcel, reduced the loading mass of lorry-mounted crane, the producer that has then solves overload problems by the mounting torque killer; General limiter of moment is for guaranteeing the transmitting of detection signal, only the load moment limiter main frame is installed on the basic arm, when overload restraint and restraint are removed, operating personal needs just can observe alarm message and carry out restraint releasing operation near the load moment limiter main frame, and it is also dangerous to do like this inconvenience.
The utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: provide a kind of when the straight arm type lorry-mounted crane is in the mode of operation of overload, the straight arm type lorry-mounted crane overload alarming control device of energy automatic alarm and limit movement.
For addressing the above problem, the technical scheme that the utility model adopts is: straight arm type lorry-mounted crane overload alarming control device, comprise for the pulleying sensor, length angular transducer and the bearing pin sensor that gather hoisting crane swing arm operational factor, for the treatment of the load moment limiter main frame of calculating hoisting crane swing arm moment size, be used for reporting to the police and controlling the power supply that the hydraulic efficiency pressure system by pass valve carries out the electric appliance control box of restraint and is used for powering to alarm control unit;
The signal output port of described pulleying sensor, length angular transducer and bearing pin sensor all links to each other with the signal input port of load moment limiter main frame, the communication port of described load moment limiter main frame links to each other with the communication port of electric appliance control box, and the power input of electric appliance control box links to each other with power supply.
Described electric appliance control box includes annunciator HA1, by pass valve LE1 and relay K A1, relay K A2, the coil of relay K A1 is coil KA1.1, its open contact is open contact KA1.2, and the coil of relay K A2 is coil KA2.1, and its open contact is open contact KA2.2;
The circuit structure of described electric appliance control box is: the end of incoming cables of total power switch S1 links to each other with power supply, link to each other with the leading-out terminal of total power switch S1 behind the end of incoming cables serial connection all clear button SA1 of the open contact KA1.2 of relay K A1, the end of incoming cables of the open contact KA2.2 of relay K A2 links to each other with the leading-out terminal of total power switch S1, described relay K A1, relay K A2 open contact KA1.2 separately, the leading-out terminal of open contact KA2.2 and connect after link to each other with the end of incoming cables of by pass valve LE1, the leading-out terminal ground connection of by pass valve LE1, annunciator HA1 is attempted by the two ends of by pass valve LE1;
The end of incoming cables of the coil KA1.1 of described relay K A1 links to each other with the 90%-109% warning mouth of load moment limiter main frame, the leading-out terminal ground connection of the coil KA1.1 of relay K A1, and indicator lamp L1 is attempted by the two ends of the coil KA1.1 of relay K A1;
The end of incoming cables of the coil KA2.1 of described relay K A2 links to each other greater than 110% warning mouth with the load moment limiter main frame, the leading-out terminal ground connection of the coil KA2.1 of relay K A2, and indicator lamp L2 is attempted by the two ends of the coil KA2.1 of relay K A2.
The beneficial effect that the utility model compared with prior art has is: the utility model can be when the straight arm type lorry-mounted crane be handled overload, and alarm and volitional check action, the defective of whether transshipping by the artificial judgment hoisting crane before remedying, because away from the scope of operation, both make things convenient for personnel operation, also guaranteed the safety of operating personal; Whole alarm control unit cost is low, and the each several part mounting structure is compact, need not to change the structure of lorry-mounted crane, as long as in the repacking of the basis of the original structure of hoisting crane, use intelligent instant alarming device, makes the actual more hommization of controlling.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail;
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is the electrical block diagram of electric appliance control box inside;
Among the figure: 1 is that pulleying sensor, 2 is that length angular transducer, 3 is that bearing pin sensor, 4 is that load moment limiter main frame, 5 is that electric appliance control box, 6 is power supply.
The specific embodiment
As shown in Figure 1, the utility model straight arm type lorry-mounted crane overload alarming control device, comprise for the pulleying sensor 1, length angular transducer 2 and the bearing pin sensor 3 that gather hoisting crane swing arm operational factor, for the treatment of the load moment limiter main frame 4 of calculating hoisting crane swing arm moment size, be used for reporting to the police and controlling the power supply 6 that the hydraulic efficiency pressure system by pass valve carries out the electric appliance control box 5 of restraint and is used for powering to alarm control unit;
The signal output port of described pulleying sensor 1, length angular transducer 2 and bearing pin sensor 3 all links to each other with the signal input port of load moment limiter main frame 4, the communication port of described load moment limiter main frame 4 links to each other with the communication port of electric appliance control box 5, and the power input of electric appliance control box 5 links to each other with power supply 6;
Described power supply 6 is responsible for to electric appliance control box 5 power supplies, and electric appliance control box 5 can be given pulleying sensor 1, length angular transducer 2, bearing pin sensor 3 and 4 power supplies of load moment limiter main frame simultaneously.
The utility model is installed in each several part on the lorry-mounted crane in use, wherein pulleying sensor 1, length angular transducer 2, bearing pin sensor 3 are installed on the straight arm type lorry-mounted crane swing arm arm head, load moment limiter main frame 4 is installed on the basic arm, electric appliance control box 5 is installed on the operator's station, and power supply 6 is installed in on the chassis.
Described electric appliance control box 5 includes annunciator HA1, by pass valve LE1 and relay K A1, relay K A2, the coil of relay K A1 is coil KA1.1, its open contact is open contact KA1.2, and the coil of relay K A2 is coil KA2.1, and its open contact is open contact KA2.2;
The circuit structure of described electric appliance control box 5 is: the end of incoming cables of total power switch S1 links to each other with power supply 6, link to each other with the leading-out terminal of total power switch S1 behind the end of incoming cables serial connection all clear button SA1 of the open contact KA1.2 of relay K A1, the end of incoming cables of the open contact KA2.2 of relay K A2 links to each other with the leading-out terminal of total power switch S1, described relay K A1, relay K A2 open contact KA1.2 separately, the leading-out terminal of open contact KA2.2 and connect after link to each other with the end of incoming cables of by pass valve LE1, the leading-out terminal ground connection of by pass valve LE1, annunciator HA1 is attempted by the two ends of by pass valve LE1;
Be the impact to power supply 6 of the backward current avoiding producing, be respectively arranged with a diode at the leading-out terminal of the open contact KA2.2 of open contact KA1.2, the relay K A2 of relay K A1, simultaneously at the two ends of by pass valve LE1 also reversal connection a diode is arranged;
In electric appliance control box 5, be provided with indicator lamp L1, indicator lamp L2, indicator lamp L3, indicator lamp L4 four road indicator lamps, be respectively overload 90-109% warning output indicator, overload greater than 110% warning output indicator, pulleying warning output indicator and system's detection indicator lamp, each indicator lamp is the different mode of operation of corresponding hoisting crane respectively;
The end of incoming cables of the coil KA1.1 of described relay K A1 links to each other with the 90%-109% warning mouth of load moment limiter main frame 4, the leading-out terminal ground connection of the coil KA1.1 of relay K A1, and indicator lamp L1 is attempted by the two ends of the coil KA1.1 of relay K A1;
Process when load moment limiter main frame 4 and to calculate data and show that hoisting crane is when surpassing the state work of specified carrying capacity 90-109%, load moment limiter main frame 4 reaches electric appliance control box 5 with alerting signal, electric appliance control box 5 indicating lamp L1 will light, relay coil KA1.1 gets electric simultaneously, it is closed to control open contact KA1.2, this timer is in alarm condition, buzzer phone HA1 sounds, and controlling water kick valve LE1 carries out restraint, by pass valve LE1 transfers to load moment limiter main frame 4 with the communication port of restraint signal by electric appliance control box 5, stops the further action of the hoisting crane arm of force; Also can report to the police by pressing alarm release switch S A1 shutdown feature this moment, and the M/C hoisting crane is eliminated the overload condition of the hoisting crane arm of force.
The end of incoming cables of the coil KA2.1 of described relay K A2 links to each other greater than 110% warning mouth with load moment limiter main frame 4, the leading-out terminal ground connection of the coil KA2.1 of relay K A2, and indicator lamp L2 is attempted by the two ends of the coil KA2.1 of relay K A2.
When load moment limiter main frame 4 is processed when calculating data and showing that hoisting crane is worked to surpass the state of specified carrying capacity 110% or more, load moment limiter main frame 4 reaches electric appliance control box 5 with alerting signal, electric appliance control box 5 indicating lamp L2 will light, relay coil KA2.1 gets electric simultaneously, it is closed to control open contact KA2.2, this timer is in alarm condition, buzzer phone HA1 sounds, and controlling water kick valve LE1 carries out restraint, by pass valve LE1 transfers to load moment limiter main frame 4 with the communication port of restraint signal by electric appliance control box 5, stops the further action of the hoisting crane arm of force; This moment can not be by pressing the warning of alarm release switch S A1 shutdown feature and carrying out restraint.
When load moment limiter main frame 4 is processed when calculating data and showing that the hoisting crane arm of force was in volume state, load moment limiter main frame 4 reaches electric appliance control box 5 with signal, electric appliance control box 5 indicating lamp L3 will light, and remind staff's M/C hoisting crane to eliminate volume state.
When load moment limiter main frame 4 when carrying out system's setting or maintenance and repair, electric appliance control box 5 indicating lamp L4 will light.
The utility model needs the specified lifted load according to lorry-mounted crane before use, installation regulates the critical numerical value of each sensor, the connection of testing circuit unobstructed errorless after, start power supply 6 and power on, and set alarm parameters at load moment limiter main frame 4.
The above has done detailed description to embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from the utility model aim, make various variations.

Claims (2)

1. straight arm type lorry-mounted crane overload alarming control device, it is characterized in that: comprise for the pulleying sensor (1), length angular transducer (2) and the bearing pin sensor (3) that gather hoisting crane swing arm operational factor, for the treatment of the load moment limiter main frame (4) of calculating hoisting crane swing arm moment size, be used for reporting to the police and controlling the power supply (6) that the hydraulic efficiency pressure system by pass valve carries out the electric appliance control box (5) of restraint and is used for powering to alarm control unit;
The signal output port of described pulleying sensor (1), length angular transducer (2) and bearing pin sensor (3) all links to each other with the signal input port of load moment limiter main frame (4), the communication port of described load moment limiter main frame (4) links to each other with the communication port of electric appliance control box (5), and the power input of electric appliance control box (5) links to each other with power supply (6).
2. straight arm type lorry-mounted crane overload alarming control device according to claim 1, it is characterized in that: described electric appliance control box (5) includes annunciator HA1, by pass valve LE1 and relay K A1, relay K A2, the coil of relay K A1 is coil KA1.1, the open contact of relay K A1 is open contact KA1.2, the coil of relay K A2 is coil KA2.1, and the open contact of relay K A2 is open contact KA2.2;
The circuit structure of described electric appliance control box (5) is: the end of incoming cables of total power switch S1 links to each other with power supply (6), link to each other with the leading-out terminal of total power switch S1 behind the end of incoming cables serial connection all clear button SA1 of the open contact KA1.2 of relay K A1, the end of incoming cables of the open contact KA2.2 of relay K A2 links to each other with the leading-out terminal of total power switch S1, described relay K A1, relay K A2 open contact KA1.2 separately, the leading-out terminal of open contact KA2.2 and connect after link to each other with the end of incoming cables of by pass valve LE1, the leading-out terminal ground connection of by pass valve LE1, annunciator HA1 is attempted by the two ends of by pass valve LE1;
The end of incoming cables of the coil KA1.1 of described relay K A1 links to each other with the 90%-109% warning mouth of load moment limiter main frame (4), the leading-out terminal ground connection of the coil KA1.1 of relay K A1, and indicator lamp L1 is attempted by the two ends of the coil KA1.1 of relay K A1;
The end of incoming cables of the coil KA2.1 of described relay K A2 links to each other greater than 110% warning mouth with load moment limiter main frame (4), the leading-out terminal ground connection of the coil KA2.1 of relay K A2, and indicator lamp L2 is attempted by the two ends of the coil KA2.1 of relay K A2.
CN 201220141774 2012-04-06 2012-04-06 Overload warning control device of straight arm-type lorry-mounted crane Expired - Fee Related CN202864766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220141774 CN202864766U (en) 2012-04-06 2012-04-06 Overload warning control device of straight arm-type lorry-mounted crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220141774 CN202864766U (en) 2012-04-06 2012-04-06 Overload warning control device of straight arm-type lorry-mounted crane

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Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253778A (en) * 2015-10-31 2016-01-20 长治清华机械厂 Moment limiter capable of automatically controlling overload warning to be relieved
CN107188055A (en) * 2017-06-01 2017-09-22 成都菲斯普科技有限公司 Derrick crane with overload locking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253778A (en) * 2015-10-31 2016-01-20 长治清华机械厂 Moment limiter capable of automatically controlling overload warning to be relieved
CN107188055A (en) * 2017-06-01 2017-09-22 成都菲斯普科技有限公司 Derrick crane with overload locking device
CN107188055B (en) * 2017-06-01 2018-11-06 江苏天煤机电科技有限公司 Derrick crane with overload locking device

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130410

Termination date: 20150406