CN1341524A

CN1341524A - Counterweight variable autocrane

Info

Publication number: CN1341524A
Application number: CN 00112509
Authority: CN
Inventors: 李晓亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-04
Filing date: 2000-09-04
Publication date: 2002-03-27

Abstract

The counterweight variable truck-mounted crane consists of rolling component on the gyrorotor, counterweight support, telescopic bar with counterweight and all the components of original truck-mounted crane. Before the telescopic bar is moved, the counterweight support is opened to support the gyrorotor upwards, then the telescopic bar and counterweight can be moved relatively to gyrorotor under the action of moving force to make the counterweight moved to the end when the crane is used for lifting and moving body, so as to increase the weight of lifting body. When said crane is not worked, they are drawn back for the convenience of running of truck-mounted crane.

Description

Counterweight variable autocrane

The present invention relates to a kind of car hosit of transporting weight.

Existing car hosit counterweight is fixed on the gyro-rotor, and is nearer from bearing position because be to be fixed on the gyro-rotor, thereby institute's object that hangs is lighter; If counterweight is placed on from bearing position far away, then make troubles to car hosit walking.In the practical work process, be sought after the car hosit that the two all has on the function.

The purpose of this invention is to provide a kind of like this counterweight variable autocrane.

For reaching above purpose, technical scheme of the present invention is: be equipped with supporting leg and gyro-rotor on the car body, arm is housed on the gyro-rotor, suspension hook is housed on the arm; Rolling member, counterweight supporting member and power are housed in the gyro-rotor; Expansion link under dynamic action, can move along fore-and-aft direction (suspension hook direction) on rolling member; Counterweight is positioned on the expansion link by bolt; Before expansion link moves, the counterweight supporting members support is opened, gyro-rotor is supported, prevent that counterweight and expansion link from moving the back and causing the damage of unbalanced influence and each part for part or complete machine; After the power energized, when expansion link moves to the foremost, the moment minimum; When moving to backmost, the moment maximum, the object of slinging is the heaviest.When not handling object, expansion link moves to the foremost, counterweight supporting member return.According to above scheme, be equipped with the counterweight supporting member on the gyro-rotor, tooth bar is housed on the expansion link, power is motor and change-speed box, and motor and change-speed box are installed on the gyro-rotor by attachment bolt, the output gear wheel and rack engagement of change-speed box, the counterweight supporting members support is opened, gyro-rotor is supported, and when output gear rotated under the motor effect, the even quilt of tooth bar and expansion link and counterweight (or back) forward moved; According to above scheme, power also can be oil hydraulic cylinder; Oil hydraulic cylinder one end is fixed on the gyro-rotor, and the other end is fixed on the expansion link, and expansion link and counterweight move along fore-and-aft direction under the positive reversal of stroke effect of oil hydraulic cylinder.Thereby reach the purpose of conversion balance position.

According to the present invention because counterweight can move forward and backward, when car hosit before the handling weight, counterweight can be moved on at last, the moment of counterweight is increased, thereby the weight of increase institute handling object; After object is winched to closely, counterweight can be moved on to the front, pack up the counterweight supporting member, rotate gyro-rotor then to desired location.Because of being equipped with the counterweight supporting member on the gyro-rotor, move front and back at expansion link and counterweight, open respectively and regain, make complete machine safe and reliable in the course of the work.Simultaneously, when not hanging object, be recoverable to, thereby reduced the shared space of complete machine.

Fig. 1 is the operational diagram of counterweight variable autocrane handling object of the present invention.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the cutaway view of Fig. 1.

Fig. 4 is the cutaway view of Fig. 2.

Fig. 5 is the cutaway view of Fig. 2.

Fig. 6 is the cutaway view of Fig. 5.

Fig. 7 is the cutaway view of Fig. 2.

Fig. 8 is the cutaway view of Fig. 7.

Below in conjunction with accompanying drawing the present invention is further specified.

Fig. 1 to Fig. 4 is first embodiment of counterweight variable autocrane of the present invention.

Fig. 1 to Fig. 3, and Fig. 5 and Fig. 6 are second embodiment of counterweight variable autocrane of the present invention.

Fig. 1 to Fig. 3, and Fig. 7 and Fig. 8 are the 3rd embodiment of counterweight variable autocrane of the present invention.

In first embodiment, be equipped with supporting leg 2 and gyro-rotor 3 on the car body 1, arm 4 is housed on the gyro-rotor 3, suspension hook 5 is housed on the arm 4, after car hosit comes to a complete stop, supporting leg 2 supportings is got up, rotate back to and turn 3, the suspension hook 5 on the arm 4 is moved on the hanging object.On gyro-rotor 3, be equipped with power 6, rolling body 7 and counterweight supporting member 11; Power 6 is made up of motor 6-1, retarder 6-2, tooth bar 6-3 and attachment bolt 6-4, rolling member 7 is made up of spin 7-1, spin bearing 7-2 and dowel bolt 7-3, be placed with expansion link 87 of rolling members, counterweight 10 is installed on the expansion link 8 by bolt 9, wherein motor 6-1 and retarder 6-2 are installed on the gyro-rotor 3 by bolt 6-4, tooth bar 6-3 is installed on the expansion link 8 by bolt 6-4, the gear mesh on tooth bar 6-3 and the retarder 6-2; Spin 7-1 is installed in the spin bearing 7-2, and spin bearing 7-2 links by dowel bolt 7-3 and gyro-rotor 3; Counterweight supporting member 11 is made up of counterweight supporting oil hydraulic cylinder 11-1 and hold-down bolt 11-2, counterweight supporting oil hydraulic cylinder 11-1, be installed on the gyro-rotor 3 by hold-down bolt 11-2, connect counterweight supporting oil hydraulic cylinder 11-1, make gyro-rotor 3 by its jack-up, connect motor 6-1, retarder 6-2 and tooth bar 6-3 setting in motion make expansion link 8 and counterweight 10 move along fore-and-aft direction.When need hang thing, counterweight 10 is placed on the rearmost position, begin lifting again; When object is retracted, counterweight 10 is moved on to the front position, the counterweight supporting member is regained, rotate back to and turn 3 to position that object is put.If object is to hang at a distance from closely changeing, its operating mode is close.

Be that with first embodiment difference power 6 is made up of oil hydraulic cylinder 6-1 and attachment bolt 6-4 in second embodiment, oil hydraulic cylinder 6-1 one end connects with gyro-rotor 3 by attachment bolt 6-4, and the other end links by attachment bolt 6-4 and expansion link 8.After action behind the oil hydraulic cylinder 6-1 difference prestart, reach the purpose of mobile counterweight 10.

In the 3rd embodiment, be: in expansion link 8, be equipped with another set of rolling member 7A, expansion link 8A and oil hydraulic cylinder 6A with second embodiment difference.Rolling member 7A is positioned in the expansion link 8, and expansion link 8A is placed on the rolling member 7A, and oil hydraulic cylinder 6A one end is positioned on the expansion link 8A, and the other end is positioned on the expansion link 8, and counterweight 10 is installed on the expansion link 8A by bolt 9.Oil hydraulic cylinder 6 one ends and gyro-rotor 3 link, and the other end and expansion link 8 link.When oil hydraulic cylinder 6 moves on to expansion link 8 when last, oil hydraulic cylinder 6A also moves on to expansion link 8A when last, and counterweight 10 will be farther to gyro-rotor 3, and the object of being sling will be heavier.When not hanging thing, equally can be with they each self-constrictions.

The invention is not restricted to above each form.Power 6 among first embodiment can with the exchange of oil hydraulic cylinder 6 among the 3rd embodiment; More than oil hydraulic cylinder among each embodiment can be single cylinder and also can be multi-cylinder; Power 6 also can be HM Hydraulic Motor and gear driven tooth bar form; Each oil hydraulic cylinder drives screw rod after also can adopting electrical motor gearshift, drives nut form (nut is fixed on the expansion link 8) by screw rod; For light counterweight 10, can remove rolling body 7, expansion link 8 adopts the slip form; Directly move when not influencing the population equilibrium situation at expansion link 8, counterweight supporting member 11 also shouldn't.More than each form even within the present invention.

Claims

1. a counterweight variable autocrane is made up of car body, supporting leg, gyro-rotor, arm and suspension hook, and supporting leg and gyro-rotor are installed on the car body, and arm is installed on the gyro-rotor, and suspension hook is installed on the arm; It is characterized in that: be equipped with power (6), rolling member (7) and counterweight supporting member (11) on the gyro-rotor (3), expansion link (8) is placed on above the rolling member (7), and counterweight (10) is installed on the expansion link (8) by bolt 9.

2. according to the structure of the counterweight variable autocrane and the power thereof of claim 1, it is characterized in that: power (6) is made up of motor (6-1), retarder (6-2), tooth bar (6-3) and attachment bolt (6-4); Motor (6-1) and retarder (6-2) are installed on the gyro-rotor (3) by bolt (6-4); Tooth bar (6-3) is installed on the expansion link (8) by bolt (6-4); Tooth bar (6-3) meshes with the output gear of retarder (6-2).

3. according to the structure of the counterweight variable autocrane and the rolling member thereof of claim 1, it is characterized in that: rolling member (7) is made up of spin (7-1), spin bearing (7-2) and dowel bolt (7-3); Spin (7-1) is installed in the spin bearing (7-2), and spin bearing (7-2) links by dowel bolt (7-3) and gyro-rotor (3).

4. according to the structure of the counterweight variable autocrane and the counterweight supporting member thereof of claim 1, it is characterized in that: counterweight supporting member (11) is made up of counterweight supporting oil hydraulic cylinder (11-1) and hold-down bolt (11-2), and counterweight supporting oil hydraulic cylinder (11-1) is installed on the gyro-rotor (3) by hold-down bolt (11-2).