CN221116738U - Portal crane with protection architecture - Google Patents

Abstract

The utility model provides a gantry crane with protection architecture, the effectual complex operation of having solved, degree of automation is low scheduling problem, it includes the girder, the lifting trolley, the landing leg, the lower end roof beam, track and cart travel mechanism, lower end roof beam front end is fixed with the guide rail of horizontal direction, guide rail intermediate position is fixed with the base, sliding connection has first slider and second slider on the guide rail, first slider and second slider are about the base left and right directions symmetry, first slider lower extreme is fixed with first clamp splice, second slider lower extreme is fixed with the second clamp splice, install the pneumatic cylinder on the base, the pneumatic cylinder slides from top to bottom has the piston rod, first fixed pulley is installed to the piston rod upper end, second fixed pulley and third fixed pulley are installed to the base, wire rope passes through first slider in proper order, the second fixed slider, first fixed pulley, third fixed pulley and second slider, install the first spring between lower end roof beam left end and the first slider, install the second spring between lower end roof beam right-hand member and the second slider.

Description

Portal crane with protection architecture

Technical Field

The utility model belongs to the technical field of portal cranes, and particularly relates to a portal crane with a protection structure.

Background

The industrial level of China rapidly develops, the portal crane is frequently used in industry, the portal crane is large-scale lifting equipment, and is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk goods, and because the portal crane is arranged outdoors, in order to avoid the phenomenon that the portal crane slides in a windy weather in a stop state, protective structures are usually arranged at two ends of a ground beam of the portal crane, the existing protective structures are usually rail clamping devices, the rail clamping pliers cannot be automatically controlled to open and close in use, the installation and the disassembly are inconvenient, the working difficulty is high due to a manual mode, and the rail clamping pliers are difficult to clamp effectively.

Disclosure of utility model

Aiming at the situation, the utility model aims to overcome the defects of the prior art and provide the portal crane with the protection structure, so that the problems of complex operation, low automation degree and the like are effectively solved.

The technical scheme includes that the trolley comprises a main beam, a trolley body and supporting legs, wherein lower end of each supporting leg is fixedly provided with a lower end beam, a track is arranged below each lower end beam, a cart travelling mechanism running along the track is arranged on each lower end beam, a guide rail in the horizontal direction is fixedly arranged at the front end of each lower end beam, the guide rail is positioned above the track, a base is fixedly arranged at the middle position of the guide rail, a first sliding block and a second sliding block are slidingly connected onto the guide rail, the first sliding block and the second sliding block are symmetrical in the left-right direction relative to the base, a first clamping block facing the track is fixedly arranged at the lower end of each first sliding block, and a second clamping block facing the track is fixedly arranged at the lower end of each second sliding block;

The hydraulic cylinder is arranged on the base, the piston rod is arranged on the hydraulic cylinder in a sliding mode, the first fixed pulley is arranged at the upper end of the piston rod, the second fixed pulley is arranged on the left side of the base, the third fixed pulley is arranged on the right side of the base, the right end of the first sliding block is fixedly connected with a steel wire rope, the steel wire rope sequentially passes through the second fixed pulley, the first fixed pulley and the third fixed pulley and is fixedly connected with the left end of the second sliding block, the first spring is arranged between the left end of the lower end beam and the first sliding block, and the second spring is arranged between the right end of the lower end beam and the second sliding block.

Preferably, the second fixed pulley and the third fixed pulley are symmetrical with respect to the left-right direction of the base.

Preferably, the first clamping block and the second clamping block are provided with anti-skid rubber pads corresponding to the rails.

Compared with the traditional equipment, the utility model has the following advantages: novel structure adopts first fixed pulley, second fixed pulley, third fixed pulley and wire rope structure, combines pneumatic cylinder elevating movement, and ingenious control first clamp splice and second clamp splice draw close to the track simultaneously and press from both sides tightly, and degree of automation is high, and it is effectual to press from both sides tightly, and stability is high, prevents swift current car, has fine protection effect, under first spring and second spring reset effect, realizes that first clamp splice and second clamp splice keep away from the track in step, loosens the track, makes things convenient for the travelling mechanism of cart to move on the track, easy operation, with low costs, and later maintenance is convenient, economical and practical.

Drawings

Fig. 1 is a schematic diagram of a front view of the present utility model.

Fig. 2 is a schematic diagram of a left side view of the present utility model.

Fig. 3 is a schematic view of fig. 1 with a partially enlarged view.

Fig. 4 is a schematic view of fig. 2B partially enlarged.

Fig. 5 is a schematic view showing a three-dimensional structure of a guide rail, a first slider and a second slider in the present utility model.

Fig. 6 is a schematic view of fig. 5C partially enlarged.

Reference numerals: 1. a main beam; 2. a lifting trolley; 3. a support leg; 4. a lower end beam; 5. a track; 6. a cart travel mechanism; 7. a guide rail; 8. a base; 9. a first slider; 10. a second slider; 11. a first clamping block; 12. a second clamping block; 13. a hydraulic cylinder; 14. a piston rod; 15. a first fixed pulley; 16. a second fixed pulley; 17. a third fixed pulley; 18. a wire rope; 19. a first spring; 20. a second spring; 21. an anti-skid rubber pad.

Detailed Description

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

The portal crane with the protection structure comprises a main beam 1, a trolley 2 and a supporting leg 3, wherein a lower end beam 4 is fixed at the lower end of the supporting leg 3, a track 5 is arranged below the lower end beam 4, a cart travelling mechanism 6 running along the track 5 is arranged on the lower end beam 4, a guide rail 7 in the horizontal direction is fixed at the front end of the lower end beam 4, the guide rail 7 is positioned above the track 5, a base 8 is fixed at the middle position of the guide rail 7, a first sliding block 9 and a second sliding block 10 are slidingly connected on the guide rail 7, the first sliding block 9 and the second sliding block 10 are symmetrical relative to the base 8 in the left-right direction, a first clamping block 11 facing the track 5 is fixed at the lower end of the first sliding block 9, and a second clamping block 12 facing the track 5 is fixed at the lower end of the second sliding block 10;

The hydraulic cylinder 13 is installed on the base 8, the piston rod 14 is arranged on the hydraulic cylinder 13 in a sliding mode up and down, the first fixed pulley 15 is installed at the upper end of the piston rod 14, the second fixed pulley 16 is installed on the left side of the base 8, the third fixed pulley 17 is installed on the right side of the base 8, the right end of the first sliding block 9 is fixedly connected with the steel wire rope 18, the steel wire rope 18 sequentially passes through the second fixed pulley 16, the first fixed pulley 15 and the third fixed pulley 17 and is fixedly connected with the left end of the second sliding block 10, the first spring 19 is installed between the left end of the lower end beam 4 and the first sliding block 9, and the second spring 20 is installed between the right end of the lower end beam 4 and the second sliding block 10.

The second fixed pulley 16 and the third fixed pulley 17 are symmetrical with respect to the left-right direction of the base 8.

In order to increase friction, the rail 5 is conveniently clamped, and the first clamping block 11 and the second clamping block 12 are respectively provided with an anti-skid rubber pad 21 corresponding to the rail 5.

When the large trolley traveling mechanism 6 stops moving, the hydraulic cylinder 13 is started, the hydraulic cylinder 13 drives the piston rod 14 to move upwards, the piston rod 14 drives the first fixed pulley 15 to move upwards, the steel wire rope 18 moves upwards, the first sliding block 9 and the second sliding block 10 simultaneously draw close to the base 8 along the guide rail 7 under the action of the second fixed pulley 16 and the third fixed pulley 17, the first clamping block 11 and the second clamping block 12 simultaneously draw close to the track 5, when the first clamping block 11 and the second clamping block 12 simultaneously clamp the track 5, the hydraulic cylinder 13 stops moving, the first clamping block 11 and the second clamping block 12 are respectively provided with an anti-skid rubber pad 21 corresponding to the track 5, friction force can be increased, damage to the track 5 can be prevented, the clamping effect is good, the gantry crane stays down on the track 5, safety and stability are achieved, at the moment, the first spring 19 and the second spring 20 are in a stretching state, when the piston rod 14 drives the first fixed pulley 15 to move downwards, the first spring 19 drives the first sliding block 9 to slide leftwards along the guide rail 7, the second spring 20 drives the second sliding block 10 to slide leftwards along the guide rail 7, the second clamping block 10 to slide the second clamping block 10 along the guide rail 7 or slide rightwards along the guide rail 7, the second clamping block 10 can be further slide along the track 5, the first clamping block 10 can be automatically clamped to the track 5, the large trolley traveling mechanism is enabled to be more stable, the large trolley traveling mechanism 6 can be automatically moved to be more far from the track 5, and the real-time can be clamped, and the large trolley traveling mechanism can be simultaneously clamped to be more easily or more stable, and the large trolley traveling mechanism can be moved and more easily and more convenient, and more convenient is easy to be moved, and more convenient to a real-time can be moved and more convenient, and more safe can be moved.

The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.

Claims (3)

1. The portal crane with the protection structure comprises a main beam (1), a lifting trolley (2) and supporting legs (3), wherein lower ends of the supporting legs (3) are fixedly provided with lower end beams (4), tracks (5) are arranged below the lower end beams (4), a cart travelling mechanism (6) running along the tracks (5) is arranged on the lower end beams (4), and the portal crane is characterized in that guide rails (7) in the horizontal direction are fixedly arranged at the front ends of the lower end beams (4), the guide rails (7) are positioned above the tracks (5), bases (8) are fixedly arranged in the middle positions of the guide rails (7), a first sliding block (9) and a second sliding block (10) are connected to the guide rails (7) in a sliding mode, the first sliding block (9) and the second sliding block (10) are symmetrical with respect to the base (8) in the left-right direction, first clamping blocks (11) facing the tracks (5) are fixedly arranged at the lower ends of the first sliding blocks (9), and second clamping blocks (12) facing the tracks (5) are fixedly arranged at the lower ends of the second sliding blocks (10).

Install pneumatic cylinder (13) on base (8), pneumatic cylinder (13) slide from top to bottom has piston rod (14), first fixed pulley (15) are installed to piston rod (14) upper end, second fixed pulley (16) are installed in base (8) left side, third fixed pulley (17) are installed on base (8) right side, first slider (9) right-hand member fixedly connected with wire rope (18), wire rope (18) are through second fixed pulley (16), first fixed pulley (15), third fixed pulley (17) in proper order to with the left end fixed connection of second slider (10), install first spring (19) between lower end beam (4) left end and first slider (9), install second spring (20) between lower end beam (4) right-hand member and second slider (10).

2. A gantry crane with a protective structure according to claim 1, characterized in that the second fixed pulley (16) and the third fixed pulley (17) are symmetrical with respect to the base (8) in the left-right direction.

3. The gantry crane with the protection structure according to claim 1, wherein the first clamping block (11) and the second clamping block (12) are provided with anti-skid rubber pads (21) corresponding to the track (5).