CN217676470U - Dock fixed type gantry crane - Google Patents

Abstract

The utility model discloses a fixed portal crane of pier relates to hoist technical field, the on-line screen storage device comprises a base, the top middle part fixedly connected with support column of base, there is movable platform at the top middle part of support column through bearing swing joint, two the backup pad of two symmetric distributions of movable platform's upper surface middle part fixedly connected with, two one side top that the backup pad is close to each other has first support arm through round pin axle swing joint. The utility model discloses a set up first support arm, the arm of cranking, second support arm and linking arm, first support arm, the arm of cranking, second support arm and linking arm combination form four-bar linkage, through setting up slider and movable block, the hydraulic stem can drive the slider, the movable block moves, and then can realize the regulation to first support arm, linking arm angle, thereby can adjust the angle of the arm of cranking, slider, movable block can play the supporting role to first support arm, linking arm respectively, thereby effectually avoided the long-term atress of hydraulic stem to damage.

Description

Dock fixed type gantry crane

Technical Field

The utility model relates to a hoist technical field, in particular to dock fixed type gantry crane.

Background

Gantry cranes have been developed with the development of harbour utilities. In 1890, a fixed, rotatable jib-type crane with invariable amplitude was first mounted on a running half-portal spanning over a narrow quay, and became an early semi-portal crane for port use. Along with the increase of the width of the wharf, the portal crane and the half-portal crane are developed in parallel, and a pitching arm support and a horizontal luffing system are generally adopted. After world war two times, the portal crane for harbor has rapidly developed to be convenient for many cranes to carry out parallel work to the same ship, and the rotating column type portal crane with the rotating part connected with the upright column body is generally adopted. In the development process, the gantry crane is gradually popularized and applied to docks, hydropower station construction sites and the like with operation conditions close to ports.

Most of existing fixed portal cranes adopt a four-link type support arm structure, and the angle of each support arm is directly adjusted through a hydraulic rod, so that the position of a lifting hook is adjusted. Therefore, there is a need to provide a quay-fixed gantry crane that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dock fixed type gantry crane to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a fixed portal crane of pier, includes the base, the base sets up to "door" shape structure, the top middle part fixedly connected with support column of base, there is movable platform at the top middle part of support column through bearing swing joint, movable platform's upper surface middle part fixedly connected with two symmetric distribution's backup pad, two one side top that the backup pad is close to each other has first support arm through round pin axle swing joint, there is bent arm on the top of first support arm through round pin axle swing joint, movable platform's upper surface one end has the second support arm through round pin axle swing joint, there is the linking arm at the middle part of second support arm through round pin axle swing joint, the bar groove has been run through in the middle part of first support arm, the inside in bar groove is provided with the slider, the lower surface swing joint of round pin axle and slider is passed through on the top of linking arm, bent arm's middle part runs through and has seted up logical groove, it is provided with the movable block to lead to the inslot, the bottom swing joint of second support arm through round pin axle and movable block.

Preferably, the middle parts of the two sides of the first support arm and the crank arm are both penetrated and provided with limit grooves, and the limit grooves are of strip-shaped structures.

Preferably, the two sides of the sliding block and the movable block are fixedly connected with limit sliding blocks, and the limit sliding blocks are in through connection with the limit grooves.

Preferably, the equal fixedly connected with hydraulic stem in one side inner wall in bar groove and logical groove, two the one end of hydraulic stem respectively with the one end fixed connection of slider, movable block.

Preferably, one end of the crank arm is provided with a steel cable, and the bottom end of the steel cable is provided with a lifting hook.

Preferably, an operation chamber is fixedly connected to one end of the upper surface of the movable platform, and a balancing weight is arranged at one end, far away from the second support arm, of the operation chamber.

The utility model discloses a technological effect and advantage:

the utility model discloses a set up first support arm, the arm cranks, second support arm and linking arm, first support arm, the arm cranks, second support arm and linking arm combination form four-bar linkage, bar groove is seted up through the middle part at first support arm, the bar inslot sets up the slider, round pin axle and slider swing joint are passed through to the top of linking arm, logical groove is seted up through the middle part at the arm that cranks, logical inslot sets up the movable block, round pin axle and movable block swing joint are passed through to the top of second support arm, the slider, the one end of movable block all is provided with the hydraulic stem, the hydraulic stem can drive the slider, the movable block motion, and then can realize first support arm, the regulation of linking arm angle, thereby can adjust the angle of the arm that cranks, the slider, the movable block can be respectively to first support arm, the linking arm plays the supporting role, thereby effectually avoided the long-term atress of hydraulic stem to damage, and then guaranteed the stability of device long-term operation in-process.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the connecting arm structure of the present invention.

Fig. 3 is the structure diagram of the hydraulic rod of the present invention.

In the figure: 1. a base; 2. a support pillar; 3. a movable platform; 4. a support plate; 5. a first support arm; 6. A crank arm; 7. a second support arm; 8. a connecting arm; 9. a strip-shaped groove; 10. a slider; 11. a through groove; 12. a movable block; 13. a limiting groove; 14. a limiting slide block; 15. a hydraulic lever; 16. a wire rope; 17. and an operation chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model provides a pier-fixed gantry crane as shown in figures 1-3, which comprises a base 1, the base 1 is arranged into a door-shaped structure, the top middle part of the base 1 is fixedly connected with a support column 2, the top middle part of the support column 2 is movably connected with a movable platform 3 through a bearing, a rotating motor is arranged between the movable platform 3 and the support column 2, the angle of the movable platform 3 can be adjusted through the rotating motor, thereby facilitating the hoisting work, the middle part of the upper surface of the movable platform 3 is fixedly connected with two support plates 4 which are symmetrically distributed, the top end of one side, close to each other, of the two support plates 4 is movably connected with a first support arm 5 through a pin shaft, the top end of the first support arm 5 is movably connected with a crank arm 6 through a pin shaft, one end of the upper surface of the movable platform 3 is movably connected with a second support arm 7 through a pin shaft, and the middle part of the second support arm 7 is movably connected with a connecting arm 8 through a pin shaft;

specifically, a four-bar linkage structure is formed among the first support arm 5, the crank arm 6, the second support arm 7 and the connecting arm 8, so that a steel cable 16 and a lifting hook can be supported, a strip-shaped groove 9 is formed in the middle of the first support arm 5 in a penetrating manner, a slider 10 is arranged inside the strip-shaped groove 9, the top end of the connecting arm 8 is movably connected with the lower surface of the slider 10 through a pin shaft, a through groove 11 is formed in the middle of the crank arm 6 in a penetrating manner, a movable block 12 is arranged in the through groove 11, and the top end of the second support arm 7 is movably connected with the bottom end of the movable block 12 through a pin shaft;

more specifically, the middle parts of two sides of the first support arm 5 and the crank arm 6 are respectively provided with a limiting groove 13 in a penetrating manner, the limiting grooves 13 are arranged to be in a strip-shaped structure, two sides of the sliding block 10 and the movable block 12 are respectively and fixedly connected with a limiting sliding block 14, the limiting sliding blocks 14 are connected with the limiting grooves 13 in a penetrating manner, the limiting grooves 13 are matched with the limiting sliding blocks 14, so that the sliding block 10 and the movable block 12 can move more stably, the inner walls of one sides of the strip-shaped groove 9 and the through groove 11 are respectively and fixedly connected with hydraulic rods 15, one ends of the two hydraulic rods 15 are respectively and fixedly connected with one ends of the sliding block 10 and the movable block 12, and the positions of the sliding block 10 and the movable block 12 can be adjusted by the hydraulic rods 15;

and, the one end of cranking arm 6 is provided with steel cable 16, and the bottom of steel cable 16 is provided with the lifting hook, and the hoist and mount of goods can be realized to steel cable 16 and lifting hook cooperation, and the upper surface one end fixedly connected with control chamber 18 of movable platform 3, and the one end that second support arm 7 was kept away from to control chamber 18 is provided with the balancing weight, and the condition of empting appears when the device hoist and mount goods in the setting of balancing weight.

The utility model discloses theory of operation:

this device is at the during operation, steel cable 16 and lifting hook cooperation, can realize the hoist and mount of goods, hydraulic stem 15 can drive slider 10 and movable block 12 motion respectively, slider 10 can slide in bar groove 9, slider 10 drives the top motion of linking arm 8 through the round pin axle, make the position between 8 tops of linking arm and the first arm 5 change, and then make the distance between second support arm 7 and the first arm 5 change, by first arm 5 this moment, bent arm 6, the four-bar linkage structure of constituteing between second support arm 7 and the linking arm 8 changes, first support arm 5, bent arm 6, the angle between second support arm 7 and the linking arm 8 all changes, and bent arm 6 can drive steel cable 16, the lifting hook motion, and simultaneously, when movable block 12 moves, movable block 12 drives the motion of second support arm 7 through the round pin axle, make the position relation between 7 tops of second support arm and bent arm 6 change, and then make the angle between bent arm 6 and the second support arm 7 change, make 16, the position of lifting hook change.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a fixed portal crane of pier, includes base (1), its characterized in that: base (1) sets up to "door" shape structure, the top middle part fixedly connected with support column (2) of base (1), there are swing joint has movable platform (3) at the top middle part of support column (2) through bearing swing joint, two backup pad (4) of two symmetric distributions of upper surface middle part fixedly connected with of swing joint of movable platform (3), two one side top that backup pad (4) are close to each other has first support arm (5) through round pin axle swing joint, there are bent arm (6) on the top of first support arm (5) through round pin axle swing joint, there is second support arm (7) on the upper surface one end of movable platform (3) through round pin axle swing joint, there is linking arm (8) at the middle part of second support arm (7) through round pin axle swing joint, the middle part of first support arm (5) runs through and has seted up bar groove (9), the inside in bar groove (9) is provided with slider (10), the lower surface swing joint of the top through round pin axle and slider (10) of linking arm (8), the middle part of bent arm (6) runs through and has seted up logical groove (11), be provided with movable block (12) in logical groove (11), be provided with the top of second support arm (7) through round pin axle swing joint.

2. A quay-fixed portal crane according to claim 1, wherein: the middle parts of the two sides of the first supporting arm (5) and the crank arm (6) are both penetrated and provided with a limiting groove (13), and the limiting groove (13) is of a strip-shaped structure.

3. A quay-fixed portal crane according to claim 2, wherein: the two sides of the sliding block (10) and the movable block (12) are fixedly connected with limiting sliding blocks (14), and the limiting sliding blocks (14) are in through connection with the limiting grooves (13).

4. A quay-fixed portal crane according to claim 3, wherein: the hydraulic press is characterized in that the inner walls of one sides of the strip-shaped groove (9) and the through groove (11) are fixedly connected with hydraulic rods (15), and one ends of the hydraulic rods (15) are fixedly connected with one ends of the sliding block (10) and the movable block (12) respectively.

5. A quay-fixed portal crane according to claim 4, wherein: one end of the crank arm (6) is provided with a steel cable (16), and the bottom end of the steel cable (16) is provided with a lifting hook.

6. A quay-fixed portal crane according to claim 5, wherein: one end of the upper surface of the movable platform (3) is fixedly connected with an operation chamber (17), and one end, far away from the second support arm (7), of the operation chamber (17) is provided with a balancing weight.

Images