CN2702984Y

CN2702984Y - Lorry-mounted crane

Info

Publication number: CN2702984Y
Application number: CN 200420025930
Authority: CN
Inventors: 王有虹; 夏青顺; 张洪桂; 杜利伟
Original assignee: CSR Qishuyan Locomotive and Rolling Stock Works
Current assignee: Changzhou Rite Engineering Machinery Co Ltd; CRRC Qishuyan Institute Co Ltd
Priority date: 2004-03-31
Filing date: 2004-03-31
Publication date: 2005-06-01
Anticipated expiration: 2014-03-31

Abstract

The utility model provides a lorry-mounted crane, comprising a boom (1), a turntable (4), a rotation mechanism (8) and a control box (5). The boom (1) comprises two roots of basic jibs (13), two roots of telescopic jibs(14), two amplitude cylinders(7), two telescopic cylinders (2) and a cross beam (20). The two roots of the basic jibs (13) are hinged on the two sides of the front of the turntable (4), the two roots of the telescopic jibs (14) are sheathed in the basic jibs (13), and a portal frame structure is formed by the two telescopic jibs (14)and the cross beam (20). One end of the telescopic cylinder (2) is hinged with the basic jibs (13), and the other end is hinged with the telescopic jib (14); one end of the amplitude cylinder (7) is hinged with the basic jibs (13), and the other end is hinged with the rear part of the turntable (4). A support bracket (11) used for the lifting is arranged on the middle of the cross beam (20), and a lifting tool (10) is arranged on the support bracket (11). The utility model can lift the goods which have large volume and heavy weight and are far away from the lorry; the utility model occupies a little space, when the crane and the goods are kept together and when the utility model is used.

Description

Lorry-mounted crane

Technical field

The utility model relates to the lorry-mounted crane that a kind of lorry-mounted crane that is installed on various vehicles, particularly track circuit contact welding Operation Van are used.

Background technology

Still be not exclusively used at present the lifting appliance of track circuit contact welding Operation Van, for the welding machine of track circuit contact welding Operation Van from being equipped with special-purpose lifting appliance to control position with on from the control position to the car on the car.Existing lorry-mounted crane, generally be to adopt single armed to lift by crane, as using the single armed form in the circuit contact welding Operation Van, satisfied and hung the requirement of depositing on the far away and welding machine withdrawal car of car, then arm is oversize, it is too big with the space of car to stand, and can not work under tunnel and railway clearance etc. has living space situation about limiting.Therefore car is far away, volume big, the goods of Heavy Weight for having required to hang, and the hoisting crane little situation that takes up room when working together the time with this cargo storage, and single armed can not be realized, must design new structure.

Summary of the invention

The purpose of this utility model provide a kind of can not only rise hang that car is far away, volume is big, the goods of Heavy Weight, and hoisting crane with cargo storage together the time and when work the little lorry-mounted crane that takes up room.

The technical scheme that realizes above-mentioned purpose is: a kind of lorry-mounted crane, comprise arm, turntable, swing type mechanism and control box, arm is by two basic arms, two telescopic booms, two amplitude oil cylinder, two telescopic oil cylinders and crossbeam are formed, two basic arms are hinged on the both sides of turntable front portion, two telescopic booms are sleeved in the basic arm, two telescopic booms and crossbeam are formed the portal frame structure, one end and the basic arm of telescopic oil cylinder are hinged, the other end and telescopic boom are hinged, one end and the basic arm of amplitude oil cylinder are hinged, the other end and turntable rear portion are hinged, and the middle part of crossbeam is equipped with the support of lifting usefulness, and suspender is installed on support.

After adopting technique scheme, because arm is made up of two basic arms, two telescopic booms, two amplitude oil cylinder, two telescopic oil cylinders and crossbeam, two basic arms are hinged on the both sides of turntable front portion, two telescopic booms are sleeved in the basic arm, two telescopic booms and crossbeam are formed the portal frame structure, the length of telescopic boom is regulated by telescopic oil cylinder, when basic arm is adjusted to level attitude by amplitude oil cylinder, can rise and hang car goods far away, the portal frame structure that telescopic boom and crossbeam are formed has improved the intensity of arm, thereby can lift by crane that volume is big, the goods of Heavy Weight.In addition, goods can be placed between two arms and turntable on, hoisting crane and cargo storage together the time and when work take up room little.Can under space constraint such as tunnel and railway clearance, working weldering rail equipment be delivered to control position from car, implement the welding procedure of rail, to satisfy the rail field welding work in fields such as railway, urban track traffic.The utility model also has simple in structure, lightweight advantage.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the schematic top plan view of Fig. 1;

Fig. 3 is the structural representation of arm of the present utility model;

Fig. 4 is the schematic top plan view of Fig. 3;

Fig. 5 is the A-A cross-sectional schematic of Fig. 3;

Fig. 6 is the B-B cross-sectional schematic of Fig. 3;

Fig. 7 is the C-C cross-sectional schematic of Fig. 3;

Fig. 8 is the structural representation of swing type mechanism of the present utility model;

Fig. 9 is a hydraulic schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

Shown in Fig. 1～8, a kind of lorry-mounted crane, comprise arm 1, turntable 4, swing type mechanism 8 and control box 5, arm 1 is by two basic arms 13, two telescopic booms 14, two amplitude oil cylinder 7, two telescopic oil cylinders 2 and crossbeam 20 are formed, two basic arms 13 are hinged on the both sides of turntable 4 front portions by axle 9, two telescopic booms 14 are sleeved in the basic arm 13, two telescopic booms 14 are formed the portal frame structure with crossbeam 20, one end of telescopic oil cylinder 2 is hinged by pin 16 and basic arm 13, the other end is hinged by pin 15 and telescopic boom 14, one end of amplitude oil cylinder 7 is hinged by pin 17 and basic arm 13, the other end is hinged by pin 6 and turntable 4 rear portions, the middle part of crossbeam 20 is equipped with the support 11 of lifting usefulness, and suspender 10 is installed on support 11.Suspender 10 is connected with support 11 by pin 12.Suspender 10 can adopt suspension ring, also can adopt suspension hook, decides as required.

Turntable 4 is flat box type construction spares of a kind of variable section, can save the space.

Shown in Fig. 3,6,7, basic arm 13 heads are equipped with one group of front-slider 18, and the afterbody of telescopic boom 14 is fixed with rear slider 19.Can make telescopic boom 14 flexibly flexible in basic arm 13 after adopting front-slider 18 and rear slider 19.

As shown in Figure 8, swing type mechanism 8 is by pivoting support 8-5, rotary motor 8-1, reductor 8-2, miniature gears 8-3, big gear wheel 8-4, limiting stopper 8-6 and limit switch 8-7 form, revolution support 8-5 is captiveed joint with the chassis of vehicle, turntable 4 be fixed on pivoting support 8-5 on enclose, reductor 8-2 is fixed in turntable 4 abdominal cavities, the mouth of rotary motor 8-1 is connected with the input end of reductor 8-2, miniature gears 8-3 is fixed on the output shaft of reductor 8-2, big gear wheel 8-4 is fixed on the following circle of pivoting support 8-5, and mesh with miniature gears 8-3, limit switch 8-7 is fixed on the turntable 4, limiting stopper 8-6 is fixed on the chassis of vehicle, and the upward circle of revolution support 8-5 is rotatably supported in revolution by roller and supports on the following circle of 8-5.Rotary motor 8-1 is fixed on the reductor 8-2, and its highest point is no more than the upper mounting plate of turntable 4.Turntable 4 is realized ± 120 ° of rotations by swing type mechanism 8.Rotary motor 8-1 adopts HM Hydraulic Motor, and cost is saved in the oil supply system 27 supporting uses that can adopt with the utility model like this.

Shown in Fig. 1,2,9, control box 5 is fixed on the rear portion of turntable 4, luffing change-over valve 24, flexible change-over valve 25 and slewing directional control valve 26 are housed in the control box 5, luffing joystick 21 is housed on the luffing change-over valve 24, flexible joystick 22 is housed on the flexible change-over valve 25, revolution joystick 23 is housed on the slewing directional control valve 26.Luffing joystick 21, flexible joystick 22, revolution joystick 23 are controlled the luffing of realization hoisting crane, flexible, revolution to three change-over valves respectively.

Arm 1 of the present utility model can forward the position less than 90 ° with the angle α of the table top of turntable 4 to by level by amplitude oil cylinder 7, the hoisting bracket 11 at crossbeam 20 middle parts, suspender 10 can place portal frame with goods 3, when being deposited, goods 3, realizes hoisting crane and the bulkload little purpose that takes up room when storing together on turntable 4 upper mounting plates and between the arm 1.Two basic arms 13 are up to the standard by amplitude oil cylinder 7 controls, work hanging car goods far away 3.

Principle of work of the present utility model is as follows: as shown in Figure 9, when using hoisting crane, the subsidiary engine of oil supply system 27 drives the oil pump running, hydraulic power is provided for this hoisting crane, by luffing joystick 21 operation luffing change-over valves 24, make fluid flow to two amplitude oil cylinder 7 through oil pipe, two amplitude oil cylinder 7 are hinged on two basic arms 13 and turntable 4 both sides, drive arms 1 by two amplitude oil cylinder 7 and rotate in less than 90 ° scope, to satisfy the needs of sling height and work range at level and turntable face angle.Same by the flexible change-over valve 25 of flexible joystick 22 operations, make fluid flow to two telescopic oil cylinders 2 through oil pipe, two telescopic oil cylinders 2 be hinged on two basic arms 13 respectively and two telescopic booms 14 on, drive two telescopic booms 14 by two telescopic oil cylinders 2, make telescopic boom 14 flexible in basic arm 13, realize that arm 1 length changes in certain scope, thereby obtain required amplitude.By revolution joystick 23 operation slewing directional control valves 26, make fluid flow to rotary fluid motor 8-1 through oil pipe, drive rotary reducer 8-2 work by rotary fluid motor 8-1, rotary reducer 8-2 drives miniature gears 8-3 and rotates, miniature gears 8-3 rotates with respect to big gear wheel 8-4, big gear wheel 8-4 is fixed on the chassis motionless by circle under the pivoting support 8-5, thereby miniature gears 8-3 is rotation to rotate around big gear wheel 8-4 again, miniature gears 8-3 is fixed on the rotary reducer 8-2, rotary reducer 8-2 is fixed in the turntable 4, therefore make turntable 4 rotations, limit switch 8-7 is housed on the turntable 4, limiting stopper 8-6 is housed on the chassis, thus turntable 4 with limit switch 8-7 limiting stopper 8-6 fixed ± 120 ° in rotation, the handling weight is to required orientation.

The utility model can also be used for other professional transport vehicle, loading and unloading and deposit that volume is big, the goods of Heavy Weight under the situation of implementation space restriction.

Claims

1, a kind of lorry-mounted crane, comprise arm (1), turntable (4), swing type mechanism (8) and control box (5), it is characterized in that: arm (1) is by two basic arms (13), two telescopic booms (14), two amplitude oil cylinder (7), two telescopic oil cylinders (2) and crossbeam (20) are formed, two basic arms (13) are hinged on the anterior both sides of turntable (4), two telescopic booms (14) are sleeved in the basic arm (13), two telescopic booms (14) are formed the portal frame structure with crossbeam (20), one end of telescopic oil cylinder (2) and basic arm (13) are hinged, the other end and telescopic boom (14) are hinged, one end of amplitude oil cylinder (7) and basic arm (13) are hinged, the other end and turntable (4) rear portion is hinged, the middle part of crossbeam (20) is equipped with the support (11) of lifting usefulness, and suspender (10) is installed on support (11).

2, lorry-mounted crane according to claim 1 is characterized in that: basic arm (13) head is equipped with one group of front-slider (18), and the afterbody of telescopic boom (14) is fixed with rear slider (19).

3, lorry-mounted crane according to claim 1 and 2, it is characterized in that: swing type mechanism (8) is by pivoting support (8-5), rotary motor (8-1), reductor (8-2), miniature gears (8-3), big gear wheel (8-4), limiting stopper (8-6) and limit switch (8-7) are formed, revolution support (8-5) is captiveed joint with the chassis of vehicle, turntable (4) be fixed on pivoting support (8-5) on enclose, reductor (8-2) is fixed in turntable (4) abdominal cavity, the mouth of rotary motor (8-1) is connected with the input end of reductor (8-2), miniature gears (8-3) is fixed on the output shaft of reductor (8-2), big gear wheel (8-4) is fixed on the following circle of pivoting support (8-5), and mesh with miniature gears (8-3), limit switch (8-7) is fixed on the turntable (4), limiting stopper (8-6) is fixed on the chassis of vehicle, and the upward circle of revolution support (8-5) is rotatably supported in revolution and supports on the following circle of (8-5).

4, lorry-mounted crane according to claim 3 is characterized in that: described rotary motor (8-1) is a HM Hydraulic Motor.

5, lorry-mounted crane according to claim 1 and 2, it is characterized in that: control box (5) is fixed on the rear portion of turntable (4), luffing change-over valve (24), flexible change-over valve (25) and slewing directional control valve (26) are housed in the control box (5), luffing joystick (21) is housed on the luffing change-over valve (24), on the flexible change-over valve (25) flexible joystick (22) is housed, revolution joystick (23) is housed on the slewing directional control valve (26).

6, lorry-mounted crane according to claim 1 and 2 is characterized in that: described suspender (10) is suspension ring or suspension hook.