The electric suspender
Technical field
The utility model relates to a kind of container crane sling, relates in particular to a kind of electric suspender.
Background technology
Traditional container crane sling adopt hydraulic-driven its ship and resell on another market, the telescoping mechanism action, therefore one cover hydraulic power station will be arranged, as Fig. 1~Fig. 4, wherein: Fig. 1, Fig. 2 are the structural representations that existing suspender adopts the hydraulic-driven telescoping mechanism, and Fig. 3, Fig. 4 are the structural representations that existing suspender adopts its rotating pin mechanism of hydraulic-driven.11 is push rods, the 12nd among Fig. 1, Fig. 2, retarder, the 13rd, HM Hydraulic Motor, the 14th, sprocket wheel chain gearing, the 15th, suspender bottom girder, the 16th, suspender telescopic girder.Among Fig. 3, Fig. 4 21 be ship and resell on another market, the 22nd, connecting rod, the 23rd opens and closes lock limit switch, the 24th, hydraulic ram.In the prior art structure, because hydraulic power station is in running order always, therefore quite power consumption.It has not only increased the weight of suspender itself, but also has increased the trouble point of suspender, and has hydraulic fluid leak and the hidden danger of contaminated environment.
Summary of the invention
The utility model is in order to solve the technical matters that existing suspender exists, and a kind of electric suspender that provides, this suspender has been removed the hydraulic power station on original suspender, with shipping and reselling on another market and expanding-contracting action of motor direct-drive suspender, make the weight reduction of suspender, and reduced the fault rate of suspender.
The technical scheme that the utility model is taked is that the electric suspender comprises suspender bottom girder, suspender telescoping mechanism and rotating pin mechanism; Described suspender telescoping mechanism comprises the suspender telescopic girder that movably is located on the bottom girder, the push rod that links to each other with telescopic girder, drive the action of suspender telescopic girder the sprocket wheel chain gearing and with sprocket wheel chain gearing bonded assembly drive element; Described suspender rotating pin mechanism comprises the end carriage that is located at suspender bottom girder two ends, the switching lock limit switch of shipping and reselling on another market, being located on the end carriage and shipping and reselling on another market the bonded assembly connecting rod and being subjected to the connecting rod Stroke Control that is located at each end carriage two ends;
Be characterized in that the retarder in the described suspender telescoping mechanism is a cylinder circular cone retarder, also comprise one with cylinder circular cone retarder bonded assembly electrical motor;
Described suspender rotating pin mechanism also comprises two sets of transmission mechanism in the end carriage that is located at suspender telescopic girder two ends respectively, every sets of transmission mechanism comprise an electrical motor, one and the output shaft bonded assembly garden post epicyclic reduction gear of electrical motor and with the output shaft bonded assembly crank of garden post epicyclic reduction gear, described connecting rod and crank connecting link.
Above-mentioned electric suspender, wherein, the motor afterbody in the described suspender telescoping mechanism is provided with to maintain the drg of suspender telescopic location.
Above-mentioned electric suspender, wherein, respectively there is a cover tightening device on the both sides of the flexible messenger chain in the described suspender telescoping mechanism.
Above-mentioned electric suspender, wherein, a described cover tightening device is serially connected between the chain.
Above-mentioned electric suspender, wherein, described tightening device comprises two screw rods, an adjustment nut, one group of belleville spring and an otic placode; One end of described two screw rods is connected with the two ends of chain respectively, and the other end of described two screw rods is screwed in the adjustment nut, and described belleville spring and otic placode are set on the screw rod after connecting, and described otic placode is connected with push rod.
Above-mentioned electric suspender, wherein, the interior plant in the box-shaped end portion crossbeam of shipping and reselling on another market in the described suspender rotating pin mechanism.
Above-mentioned electric suspender wherein, is provided with in the connecting rod in the described suspender rotating pin mechanism to detect and ships and resell on another market out/sensor block of blocking.
Above-mentioned electric suspender, wherein, the afterbody of the motor in the described suspender rotating pin mechanism is provided with to keep shipping and reselling on another market out or the drg of locked position of coupler.
Above-mentioned electric suspender wherein, is equipped with the shock absorber of controlling the end position of shipping and reselling on another market on the drop-gear box of described suspender rotating pin mechanism.
Above-mentioned electric suspender, wherein, the shock absorber of described suspender rotating pin mechanism is included in the pivoted arm that the upper end of the output shaft of garden post epicyclic reduction gear is provided with and two buffing pads on end carriage of being welded.
Because the utility model electric lifting tool has adopted above technical scheme, adopt motor, post garden, garden conic reducer drive sprocket chain to realize the fore and aft motion of suspender; Adopt motor, garden post epicyclic reduction gear to drive piston crank mechanism and realize shipping and reselling on another market out/jaw closing movement of suspender.Use the electrical motor individual drive, motor is only just switched on not power consumption usually when needs move; And owing to removed hydraulic power station, whole suspender weight is alleviated, and the most important thing is that the maintenance of electric lifting tool and maintenance will simplify greatly, thereby has reduced the cost that uses, and has improved the functional reliability of complete machine, and environmental protection.
Description of drawings
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a prior art electric lifting tool telescoping mechanism scheme drawing.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the rotating pin mechanism scheme drawing of prior art electric lifting tool.
Fig. 4 is the birds-eye view of Fig. 3.
Fig. 5 is the structural scheme of mechanism of the utility model electric lifting tool.
Fig. 6 is the birds-eye view of Fig. 5.
Fig. 7 is the telescoping mechanism scheme drawing of the utility model electric lifting tool.
Fig. 8 is the birds-eye view of Fig. 7.
Fig. 9 is the scheme drawing of the tightening device in the telescoping mechanism of Fig. 7 electric lifting tool.
Figure 10 is the rotating pin mechanism scheme drawing of the utility model electric lifting tool.
Figure 11 is the birds-eye view of Figure 10.
Figure 12 is the scheme drawing of shock absorber of the rotating pin mechanism end position of Figure 11 electric lifting tool.
Figure 13 is the utility model electric lifting tool electric machine control scheme drawing.
The specific embodiment
See also Fig. 5, Fig. 6.The utility model is a kind of electric suspender, comprises suspender overhanging beam 51, suspender telescoping mechanism 52 and rotating pin mechanism 53.
See also Fig. 7, Fig. 8.Suspender telescoping mechanism 52 comprises the suspender telescopic girder 521 that movably is located on the bottom girder, be fixed on push rod 522 on the overhanging beam, drive the action of suspender telescopic girder sprocket wheel chain gearing 523 and with sprocket wheel chain gearing bonded assembly drive element.Comprise retarder 524 and one and this retarder bonded assembly electrical motor 525 in the drive element.This retarder is a cylinder circular cone retarder.Electrical motor afterbody in the suspender telescoping mechanism is provided with the drg 526 to maintain the suspender telescopic location.
For making messenger chain absorb a part from the impact energy of stretching/contracting direction, the both sides of the flexible messenger chain in described suspender telescoping mechanism respectively are connected in series a cover tightening device 527, see also Fig. 9.Each tightening device 527 comprises two screw rods 5271,5272, an adjustment nut 5273, one group of belleville spring 5274 and connecting rod otic placode 5275; One end of two screw rods 5271,5272 is connected with the two ends of chain respectively, the other end of two screw rods is screwed in the adjustment nut 5273, be set on the screw rod 5271 after belleville spring 5274 and connecting rod otic placode 5275 link to each other, described connecting rod otic placode is connected with push rod 522.
The suspender expanding-contracting action is realized by motor, the conic reducer driving chain transmission of post garden, garden.When telescopic girder to 20 ', during 40 ', 45 ' position, the electric-control system of corresponding suspender sends signal and cuts off should flexible motor power, and motor is stopped operating, the drg of this motor afterbody braking simultaneously is to maintain the telescopic location of suspender.Respectively there is a cover tightening device on the both sides of flexible messenger chain, can make messenger chain absorb a part from the impact energy of stretching/contracting direction.
See also Figure 10, Figure 11.The suspender rotating pin mechanism 53 of the utility model electric lifting tool comprise the telescopic girder two ends that are located at suspender end carriage 531-1 and 531-2 (please cooperate) referring to Fig. 7, Fig. 8, be located at the end carriage two ends ship and resell on another market 532-1 and 532-2 (present embodiment is the example explanation with the rotating pin mechanism that is provided with on the side beam only), be located in the end carriage and the switching lock limit switch 534 of shipping and reselling on another market bonded assembly connecting rod 533 and being subjected to the connecting rod Stroke Control; Ensconce in the two ends of box-shaped end end carriage (crossbeam) 531-1 of portion and 531-2 in the shipping and reselling on another market in this suspender rotating pin mechanism, be provided with in the connecting rod to detect and ship and resell on another market out/sensor block 538 of blocking.Also comprise be located at two end carriages respectively respectively overlap driving device 535, every cover driving device by an electrical motor 5351, one and the output shaft bonded assembly garden post epicyclic reduction gear 5352 of electrical motor and with the output shaft bonded assembly crank 5353 of garden post epicyclic reduction gear, described connecting rod and crank connecting link open and close lock limit switch 534 by the sensor block induction line process control on the connecting rod.The afterbody of each motor in the suspender rotating pin mechanism is provided with to keep shipping and reselling on another market out or the drg 5354 of locked position of coupler.
Because the piston crank mechanism that respectively has a cover to drive in the end carriage at suspender two ends by motor, garden post epicyclic reduction gear, two actions of shipping and reselling on another market of every cover mechanism's driving, they can be subjected to outside destroy by in the interior plant box-shaped end portion crossbeam, have higher reliability.Open/the locking limit switch also is installed in the inside, detects out/blocking by two positions detecting sensor block on the connecting rod.Be in out when shipping and reselling on another market or during locked position of coupler, the electric-control system of suspender sends signal and cuts off this rotating pin mechanism motor power, and motor is stopped operating, the drg of motor afterbody braking simultaneously is to guarantee that shipping and reselling on another market of suspender is in out or locked position of coupler.
The utility model also is included in the ship and resell on another market shock absorber 539 of end position of control is housed on the drop-gear box of described suspender rotating pin mechanism, as shown in figure 12.The pivoted arm 5391 that this shock absorber is provided with by the upper end at the output shaft of garden post epicyclic reduction gear and two buffing pads 5392 that are welded on end carriage constitute.When going to 0 degree or 90 degree positions when shipping and reselling on another market, the pivoted arm on the post epicyclic reduction gear output shaft of garden hits on the rubber-like buffing pad, with the accuracy of the position of guaranteeing to ship and resell on another market.
See also Figure 13, this is the utility model electric lifting tool electric machine control scheme drawing.
In this scheme drawing, electrical motor 535 is the motors in the suspender telescoping mechanism, its afterbody is provided with the drg 526 that maintains the suspender telescopic location, and X1 is the AC contactor in the suspender telescoping mechanism, and whether the action by the electrical motor 535 in the open and close controlling suspender telescoping mechanism of this AC contactor.Electrical motor 535-1,535-2 are respectively each motors in the suspender rotating pin mechanism, and its afterbody respectively is provided with to keep shipping and reselling on another market out or drg 5354-1, the 5354-2 of locked position of coupler.X2, X3 are respectively the AC contactor in the suspender rotating pin mechanism, and whether the action by electrical motor 535-1,535-2 in the open and close controlling suspender rotating pin mechanism of this AC contactor.
The utlity model has that energy consumption is low, maintenance and maintenance simplification, use cost reduction, complete machine reliable operation, easy to operate advantage.