CN2813564Y - Electrohydraulic controller for crane auxiliary arm folding and extending - Google Patents

Electrohydraulic controller for crane auxiliary arm folding and extending Download PDF

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Publication number
CN2813564Y
CN2813564Y CN 200520071398 CN200520071398U CN2813564Y CN 2813564 Y CN2813564 Y CN 2813564Y CN 200520071398 CN200520071398 CN 200520071398 CN 200520071398 U CN200520071398 U CN 200520071398U CN 2813564 Y CN2813564 Y CN 2813564Y
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CN
China
Prior art keywords
auxiliary
arm
hydraulic
auxiliary arm
electromagnetic valve
Prior art date
Application number
CN 200520071398
Other languages
Chinese (zh)
Inventor
王凤萍
程磊
孙影
王圣磊
李西红
李德昌
Original Assignee
徐州重型机械有限公司
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Publication date
Application filed by 徐州重型机械有限公司 filed Critical 徐州重型机械有限公司
Priority to CN 200520071398 priority Critical patent/CN2813564Y/en
Application granted granted Critical
Publication of CN2813564Y publication Critical patent/CN2813564Y/en

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Abstract

The utility model relates to an electrohydraulic controller for folding and extending a crane auxiliary arm, which belongs to an electrohydraulic controller for cranes. The intermediate position of a main crane arm is connected with an auxiliary arm carrier frame, and a rotating shaft and an electrohydraulic driver are connected between the back part of an auxiliary arm and the front part of the main crane arm. A hydraulic oil cylinder controlled by an electromagnetic valve is used as auxiliary power, and the auxiliary arm rotates outwards for extending and rotates inwards for folding by winding the rotating shaft on the side face of the main crane arm by means of the acting force of an oil cylinder piston rod to the auxiliary arm carrier frame, without manually pulling the auxiliary arm to rotate. The rotation of the auxiliary arm has the advantages of labor and time saving and safe operation. The utility model has the advantages of simpleness of the driving device, high safety, time saving, high efficiency, convenient operation, etc. The utility model also has the advantages of lightening crane operators' labor intensity, improving work efficiency and satisfying gradually increased requirements of convenient operation, labor and time-saving and personal safety for operators.

Description

Crane subsidiary arm retractable electrofluidic control device
Technical field
The utility model is that a kind of of harvesting auxiliary provides the device that drives power, particularly a kind of crane subsidiary arm retractable electrofluidic control device by electrohydraulic control about automobile crane subsidiary arm rotation auxiliary when launching and receive and keep.
Background technology
At present, automobile crane subsidiary arm is connected with main crane arm, be four hinges and auxiliary afterbody four hinges assembling bonded assembly by main crane arm head, normally earlier outwards rotate auxiliary when launching auxiliary around the rotating shaft of auxiliary and main crane arm side, during the harvesting auxiliary is inwardly to rotate auxiliary around this rotating shaft, and existing rotation auxiliary technology is artificial pulling auxiliary, makes its rotation, it is very difficult to operate, and efficient is extremely low.Particularly,, rotate more time-consuming, the effort of auxiliary, and operation is absolutely unsafe owing to many-sided reasons such as influence that is subjected to the auxiliary deadweight and manufacturing errorss for large-tonnage hoisting crane more than 80 tons.
Summary of the invention
The purpose of this utility model be save time when a kind of rotation auxiliary will be provided, laborsaving, and the crane subsidiary arm retractable electrofluidic control device of safety of operation.
The purpose of this utility model is achieved in that the midway location at main crane arm is connected with the auxiliary carriage, is connected with rotating shaft and electro-hydraulic driver between the front portion of the rear portion of auxiliary and main crane arm.
Electro-hydraulic driver has a hydraulic ram, and an end of hydraulic ram has dop, and dop is connected with the auxiliary support; The other end is connected with the rotary connection frame, and the rotary connection frame is connected with main crane arm by the principal arm bearing, also is connected with electromagnetic valve on the rotary connection frame; The rodless cavity oil inlet is connected with the control port of balance cock and the right actuator port of electromagnetic valve simultaneously, the rod chamber oil inlet is connected with the oil inlet of balance cock, the oil outlet of balance cock is connected with the left actuator port of electromagnetic valve, the pressure hydraulic fluid port of electromagnetic valve is connected with the oil inlet of by pass valve and the working end of hydraulic oil pump simultaneously, and the oil revolving end of hydraulic oil pump is connected in the hydraulic reservoir; The return opening of electromagnetic valve is connected with the return opening of by pass valve, and is connected in the hydraulic reservoir simultaneously.
Beneficial effect: owing to adopt such scheme, the hydraulic ram that utilizes solenoid control is as auxiliary power, application force by oil cylinder piston pole pair auxiliary support, make auxiliary around the outside rotary expansion auxiliary of the rotating shaft of main crane arm side, inwardly rotation harvesting auxiliary does not need manually to spur auxiliary and is rotated, and saves time during the rotation auxiliary, laborsaving, and safety of operation has reached the purpose of this utility model.Advantage: hoisting crane launches, the electrohydraulic control actuating device of harvesting auxiliary, when efficiently solving the operation of hoisting crane use auxiliary, auxiliary is around the rotating shaft of main crane arm side, outwards rotary expansion auxiliary and the inwardly problem of rotation harvesting auxiliary difficulty, this actuating device is simple, have safely, save time, characteristics such as efficient, easy to operate, alleviated crane operation personnel's labour intensity greatly, improved work efficiency, satisfied that the operator increases day by day easy and simple to handle, save time, laborsaving and personal safety needs.
Description of drawings
Fig. 1 is the assembling scheme drawing of auxiliary and main crane arm.
Fig. 2 is for launching, receive and keep the electric liquid schematic diagram of auxiliary.
Fig. 3 is for launching, receive and keep the electrohydraulic control actuating device scheme drawing of auxiliary.
The specific embodiment
Embodiment 1: in Fig. 1, be connected with auxiliary carriage 4 at the midway location of main crane arm 3, be connected with rotating shaft 5 and electro-hydraulic driver 1 between the front portion of the rear portion of auxiliary 2 and main crane arm 3.
In Fig. 3, electro-hydraulic driver 1 has a hydraulic ram 33, and an end of hydraulic ram 33 has dop 34, and dop 34 is connected with auxiliary support 30; The other end is connected with rotary connection frame 32, and rotary connection frame 32 is connected with main crane arm 3 by principal arm bearing 31, also is connected with electromagnetic valve on rotary connection frame 32.
In Fig. 2, the rodless cavity oil inlet of hydraulic ram 25 is connected with the control port of balance cock 26 and the actuator port of electromagnetic valve 24 simultaneously, the rod chamber oil inlet of hydraulic ram 25 is connected with the oil inlet of balance cock 26, the oil outlet of balance cock 26 is connected with the left actuator port of electromagnetic valve 24, the pressure hydraulic fluid port of electromagnetic valve 24 is connected with the oil inlet of by pass valve 23 and the working end of hydraulic oil pump 22 simultaneously, and the oil revolving end of hydraulic oil pump 22 is connected in the hydraulic reservoir 21; The return opening of electromagnetic valve 24 is connected with the return opening of by pass valve 23, and is connected to simultaneously in the hydraulic reservoir 21.
Principle of work: in Fig. 1,1 is electro-hydraulic controller; 2 is auxiliary; 3 is main crane arm; 4 is the auxiliary carriage; 5 are rotating shaft, rotating shaft 5 is installed on the hinge hole of auxiliary 2 and main crane arm 3, auxiliary 2 is hinged by rotating shaft 5 and main crane arm 3, when launching auxiliary, utilize electro-hydraulic controller 1 to make auxiliary 5 rotations around the shaft, on rotation is hinged with the hinge B of the hinge A place of auxiliary end one side and main crane arm head one side, this moment, auxiliary 2 was on the auxiliary carriage 4, and the slightly downward-sloping certain angle of auxiliary carriage 4, then rotating shaft 5 and main crane arm 3 are thrown off, auxiliary 2 is thrown off by the deadweight inertia of downslope and the dop 34 of hydraulic ram, and rotate around main crane arm 3 head hinge B places, up to the hinge place of opposite side, the hinge of hinged opposite side, this moment, auxiliary 2 expansion processes finished.When the harvesting auxiliary, pull down the bearing pin at C place, make auxiliary 2 forward auxiliary 2 to circling round around main crane arm 3 head hinge B places near auxiliary carriage 4, utilize electro-hydraulic controller 1 again, make auxiliary 2 around main crane arm 3 head hinge B place's rotating shafts 5 rotations, on auxiliary rotation auxiliary carriage 4, rotating shaft 5 and main crane arm 3 are linked together, pull down the bearing pin at B place then, utilize electro-hydraulic controller 1 that auxiliary 2 is linked together, pull down the bearing pin at B place then, utilize electro-hydraulic controller 1 to make auxiliary 25 continuation around the shaft to the commentaries on classics of circling round, up to the harvesting process of finishing auxiliary.
In Fig. 2, this device comprises engine installation---hydraulic oil pump, control setup---electromagnetic valve, safety device---balance cock, executive device---hydraulic ram, itself and auxiliary element---hydraulic reservoir, pipeline, adaptor union etc.When launching auxiliary, press teleswitch and make electromagnetic valve get electric commutation, hydraulic oil pump enters actuating unit hydraulic ram loculus from carrying the hydraulic reservoir oil suction through electromagnetic valve, and the oil cylinder piston bar is withdrawn under action of hydraulic force, drives auxiliary and inwardly rotates around its hinge.Balance cock plays safety guard-safeguard and buffer action in this process, and controls its kinematic velocity, makes stable working reliable.
In Fig. 3,31 is the principal arm bearing, be connected the side of main crane arm 3,30 is the auxiliary support, is connected on the auxiliary 2, hydraulic ram 33 is assemblied on the rotary connection frame 32, and then be hinged on the principal arm bearing 31, the other end of hydraulic ram 33 has dop 34, and dop is connected with auxiliary support 30,22 is electromagnetic valve, is connected on the supporting plate of principal arm bearing 31.

Claims (2)

1, a kind of crane subsidiary arm retractable electrofluidic control device, it is characterized in that: the midway location at main crane arm is connected with the auxiliary carriage, is connected with rotating shaft and electro-hydraulic driver between the front portion of the rear portion of auxiliary and main crane arm.
2, crane subsidiary arm retractable electrofluidic control device according to claim 1, it is characterized in that: electro-hydraulic driver has a hydraulic ram, and an end of hydraulic ram has dop, and dop is connected with the auxiliary support; The other end is connected with the rotary connection frame, and the rotary connection frame is connected with main crane arm by the principal arm bearing, also is connected with electromagnetic valve on the rotary connection frame; The rodless cavity oil inlet is connected with the control port of balance cock and the right actuator port of electromagnetic valve simultaneously, the rod chamber oil inlet is connected with the oil inlet of balance cock, the oil outlet of balance cock is connected with the left actuator port of electromagnetic valve, the pressure hydraulic fluid port of electromagnetic valve is connected with the oil inlet of by pass valve and the working end of hydraulic oil pump simultaneously, and the oil revolving end of hydraulic oil pump is connected in the hydraulic reservoir; The return opening of electromagnetic valve is connected with the return opening of by pass valve, and is connected in the hydraulic reservoir simultaneously.
CN 200520071398 2005-04-30 2005-04-30 Electrohydraulic controller for crane auxiliary arm folding and extending CN2813564Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520071398 CN2813564Y (en) 2005-04-30 2005-04-30 Electrohydraulic controller for crane auxiliary arm folding and extending

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520071398 CN2813564Y (en) 2005-04-30 2005-04-30 Electrohydraulic controller for crane auxiliary arm folding and extending

Publications (1)

Publication Number Publication Date
CN2813564Y true CN2813564Y (en) 2006-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520071398 CN2813564Y (en) 2005-04-30 2005-04-30 Electrohydraulic controller for crane auxiliary arm folding and extending

Country Status (1)

Country Link
CN (1) CN2813564Y (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381630A (en) * 2011-10-11 2012-03-21 中联重科股份有限公司 Crane and hydraulic system thereof
CN102424329A (en) * 2011-08-20 2012-04-25 三一汽车起重机械有限公司 Crane and sub arm installing device thereof
CN102491189A (en) * 2011-11-16 2012-06-13 三一汽车起重机械有限公司 Crane for mine disaster rescue
CN102602825A (en) * 2012-03-13 2012-07-25 中联重科股份有限公司 Unfolding/folding device of auxiliary arm, arm support structure and crane
CN103058075A (en) * 2012-12-26 2013-04-24 三一重工股份有限公司 Retrieving method for fly jib of crane and retrieving apparatus for fly jib
CN103754776A (en) * 2013-12-31 2014-04-30 三一汽车起重机械有限公司 Fly jib self-dismounting mechanism, crane, and fly jib control method
CN104528556A (en) * 2014-12-31 2015-04-22 徐州重型机械有限公司 Automatic third support folding and unfolding device and crane

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424329B (en) * 2011-08-20 2014-03-19 三一汽车起重机械有限公司 Crane and sub arm installing device thereof
CN102424329A (en) * 2011-08-20 2012-04-25 三一汽车起重机械有限公司 Crane and sub arm installing device thereof
CN102381630B (en) * 2011-10-11 2013-09-04 中联重科股份有限公司 Crane and hydraulic system thereof
CN102381630A (en) * 2011-10-11 2012-03-21 中联重科股份有限公司 Crane and hydraulic system thereof
CN102491189A (en) * 2011-11-16 2012-06-13 三一汽车起重机械有限公司 Crane for mine disaster rescue
CN102602825A (en) * 2012-03-13 2012-07-25 中联重科股份有限公司 Unfolding/folding device of auxiliary arm, arm support structure and crane
CN102602825B (en) * 2012-03-13 2014-07-16 中联重科股份有限公司 Unfolding/folding device of auxiliary arm, arm support structure and crane
CN103058075A (en) * 2012-12-26 2013-04-24 三一重工股份有限公司 Retrieving method for fly jib of crane and retrieving apparatus for fly jib
CN103754776A (en) * 2013-12-31 2014-04-30 三一汽车起重机械有限公司 Fly jib self-dismounting mechanism, crane, and fly jib control method
CN104528556A (en) * 2014-12-31 2015-04-22 徐州重型机械有限公司 Automatic third support folding and unfolding device and crane

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C14 Grant of patent or utility model
CX01 Expiry of patent term

Expiration termination date: 20150430

Granted publication date: 20060906

C17 Cessation of patent right