CN216072779U - Portal crane with good stability - Google Patents

Abstract

The utility model discloses a portal crane with good stability, and relates to the technical field of portal cranes. This portal crane that stability can be good passes through the second motor and drives helical gear rotation, helical gear drives fourth gear rotation, fourth gear drives pivot and third gear rotation, the third gear drives the rack and moves down in the spout in the pivoted, hoist the goods through hoisting accessory, the length that makes hoisting accessory stretch out the rope reduces, the effectual amplitude of swing that has reduced at the in-process goods that removes, the stability of this portal crane that stability can be good when hoist and mount has been improved.

Description

Portal crane with good stability

Technical Field

The utility model relates to the technical field of gantry cranes, in particular to a gantry crane with good stability.

Background

The portal crane is a hoisting device which is transversely erected above workshops, warehouses and material yards for hoisting materials, because the two ends of the portal crane are located on high cement columns or metal supports and are shaped like bridges, and the bridge frame of the portal crane longitudinally runs along tracks laid on the elevated frames at the two sides, the space below the bridge frame can be fully utilized for hoisting the materials, the portal crane is not hindered by ground equipment, and the portal crane is a hoisting machine with the widest application range and the largest quantity.

The hoisting accessory of current portal crane on the existing market can not carry out the regulation of height, when carrying out the lower object of hoist and mount height, need go on descending the rope to the object top, lead to middle part rope overlength in hoist and mount, produce great amplitude of fluctuation easily, stability when hoist and mount goods is low.

Therefore, it is necessary to provide a gantry crane with good stability to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a portal crane with good stability, and aims to solve the problems that a hoisting device of the existing portal crane in the market, which is proposed in the background art, cannot adjust the height, so that a middle rope is too long during hoisting, a large swing amplitude is easy to generate, and the stability during hoisting goods is low.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a portal crane with good stability performance comprises a bottom plate, wherein a first slide rail is fixedly connected to the top of the bottom plate and is in rolling connection with a wheel body, a rotating shaft is fixedly connected to the axle center of the wheel body, one end of the rotating shaft is rotatably connected with a fixed shell through a bearing, a first gear is fixedly connected to the axle center of the other end of the rotating shaft and is meshed with a second gear, the second gear is fixedly connected with an electric shaft, the electric shaft is rotatably connected with a fixed plate through a bearing, the electric shaft is fixedly connected with the output end of a first motor, a support frame is fixedly connected to the top of the fixed shell, a chute is fixedly connected to the top of the support frame, the inner wall of the chute is in sliding connection with a rack, the rack is fixedly connected with a third gear, the axle center of the third gear is fixedly connected with a rotating shaft, and a fourth gear is fixedly connected to the axle center of the rotating shaft, the fourth gear is meshed with the spiral gear, the axis of the spiral gear is fixedly connected with the output end of a second motor, the side wall of the second motor is fixedly connected with the fixing seat, the rotating shaft is fixedly connected with the connecting plate through a bearing, the rack is far away from the tooth side fixedly connected with fixing block, the top of the fixing block is fixedly connected with the bearing column, the top of the bearing column is fixedly connected with a second slide rail, the second slide rail is slidably connected with a power mechanism, and the bottom of the power mechanism is fixedly connected with a lifting device.

Preferably, the first motor is fixedly connected with the fixing plate.

Preferably, the fixed seat is fixedly connected with the outer side of the sliding groove.

Preferably, the connecting plates are two and are respectively arranged on two sides of the third gear, and the connecting plates are fixedly connected with the side walls of the sliding grooves.

Preferably, there are two first gears, and the positions of the two first gears are symmetrical with respect to the second gear.

Preferably, the helical gear is adapted to the fourth gear.

(III) advantageous effects

Compared with the prior art, the utility model provides the portal crane with good stability, which has the following beneficial effects:

1. the utility model is provided with a chute, a rack, a third gear, a rotating shaft, a fourth gear, a spiral gear, a second motor, a fixed block and a bearing column, before the portal crane with good stability is used for hoisting goods with lower height, the second motor drives the spiral gear to rotate, the spiral gear drives the fourth gear to rotate, the fourth gear drives the rotating shaft and the third gear to rotate, the third gear drives the rack to move downwards in the sliding groove when rotating, the sliding strip drives the fixed block to move downwards, the fixed block drives the bearing column to move downwards, so that the height of the bearing column reaches a proper position, the goods are lifted by the lifting device, so that the length of the lifting device extending out of the rope is reduced, the swing amplitude of the goods in the moving process is effectively reduced, and the stability of the portal crane with good stability in lifting is improved.

2. According to the utility model, through the arrangement of the first slide rail, the wheel body, the rotating shaft, the first gear, the second gear, the electric shaft and the first motor, when the device is used for lifting goods to move, the first motor rotates to drive the electric shaft to rotate, the electric shaft drives the second gear to rotate specially, the second gear drives the first gear to rotate, the first gear drives the rotating shaft to rotate, the rotating shaft drives the wheel body to rotate, under the action of the second gear, the first gears on two sides of the second gear rotate in the same direction, so that the two rotating shafts and the wheel body rotate simultaneously, and the portal crane with good stability is more stable when moving on the first slide rail.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the right side cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the bottom cross-sectional structure of the present invention;

fig. 4 is a schematic view of an enlarged structure a in fig. 3 according to the present invention.

In the figure: 1. a base plate; 2. a first slide rail; 3. a wheel body; 4. a rotating shaft; 5. a stationary case; 6. a first gear; 7. a second gear; 8. an electric shaft; 9. a fixing plate; 10. a first motor; 11. a support frame; 12. a chute; 13. a rack; 14. a third gear; 15. a rotating shaft; 16. a fourth gear; 17. a helical gear; 18. a second motor; 19. a fixed seat; 20. a connecting plate; 21. a fixed block; 22. a load-bearing column; 23. a second slide rail; 24. a power mechanism; 25. a hoisting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a gantry crane with good stability performance includes a base plate 1, a first slide rail 2 fixedly connected to a top of the base plate 1, the first slide rail 2 being in rolling connection with a wheel body 3, a rotating shaft 4 fixedly connected to an axis of the wheel body 3, one end of the rotating shaft 4 being rotatably connected to a stationary housing 5 through a bearing, a first gear 6 fixedly connected to an axis of the other end of the rotating shaft 4, the first gear 6 being engaged with a second gear 7, two first gears 6 being provided, the positions of the two first gears 6 being symmetrical with respect to the second gear 7, the second gear 7 being fixedly connected to an electric shaft 8, the electric shaft 8 being rotatably connected to a stationary plate 9 through a bearing, the electric shaft 8 being fixedly connected to an output end of a first motor 10, the first slide rail 2, the wheel body 3, the rotating shaft 4, the first gear 6, the second gear 7, the electric shaft 8, and the first motor 10 being disposed, when the device is used for lifting goods to move, the first motor 10 rotates, the first motor 10 drives the electric shaft 8 to rotate, the electric shaft 8 drives the second gear 7 to rotate specially, the second gear 7 drives the first gear 6 to rotate, the first gear 6 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the wheel body 3 to rotate, under the action of the second gear 7, the first gears 6 on two sides of the second gear 7 rotate in the same direction, so that the two rotating shafts 4 and the wheel body 3 rotate simultaneously, the portal crane with good stability is more stable when moving on the first slide rail 2, the first motor 10 is fixedly connected with the fixing plate 9, the top of the fixing shell 5 is fixedly connected with the supporting frame 11, the top of the supporting frame 11 is fixedly connected with the slide groove 12, the inner wall of the slide groove 12 is connected with the rack 13 in a sliding manner, the rack 13 is fixedly connected with the third gear 14, and the axle center of the third gear 14 is fixedly connected with the rotating shaft 15, a fourth gear 16 is fixedly connected at the axle center of the rotating shaft 15, the fourth gear 16 is meshed with a spiral gear 17, the spiral gear 17 is matched with the fourth gear 16, the axle center of the spiral gear 17 is fixedly connected with the output end of a second motor 18, the side wall of the second motor 18 is fixedly connected with a fixed seat 19, the fixed seat 19 is fixedly connected with the outer side of the sliding chute 12, the rotating shaft 15 is fixedly connected with two connecting plates 20 through bearings, the two connecting plates 20 are respectively arranged at two sides of the third gear 14, the connecting plates 20 are fixedly connected with the side wall of the sliding chute 12, a fixed block 21 is fixedly connected with the side of the rack 13 far away from the tooth side, a bearing column 22 is fixedly connected at the top of the fixed block 21, and before the portal crane with good stability is used for hoisting goods with lower height, the second motor 18 drives the spiral gear 17 to rotate, the spiral gear 17 drives the fourth gear 16 to rotate, the fourth gear 16 drives the rotating shaft 15 and the third gear 14 to rotate, the third gear 14 drives the rack 13 to move downwards in the sliding groove 12 when rotating, the sliding strip drives the fixed block 21 to move downwards, the fixed block 21 drives the bearing column 22 to move downwards, the height of the bearing column 22 reaches a proper position, the goods are lifted through the lifting device 25, the length of the lifting device 25 extending out of a rope is reduced, the swinging amplitude of the goods in the moving process is effectively reduced, the stability of the portal crane with good stability in lifting is improved, the second sliding rail 23 is fixedly connected to the top of the bearing column 22, the second sliding rail 23 is slidably connected with the power mechanism 24, and the lifting device 25 is fixedly connected to the bottom of the power mechanism 24.

The working principle is as follows: when the goods are hoisted to move, the portal crane with good stability drives the fixing block 21 to move downwards by the sliding strip through the rotation of the first motor 10, the first motor 10 drives the electric shaft 8 to rotate, the electric shaft 8 drives the second gear 7 to rotate specially, the second gear 7 drives the first gear 6 to rotate, the first gear 6 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the wheel body 3 to rotate, under the action of the second gear 7, the first gears 6 on both sides of the second gear 7 rotate in the same direction, when the portal crane with good stability hoists the goods with lower height, the second motor 18 drives the helical gear 17 to rotate, the helical gear 17 drives the fourth gear 16 to rotate, the fourth gear 16 drives the rotating shaft 15 and the third gear 14 to rotate, the third gear 14 drives the rack 13 to move downwards in the sliding groove 12 when rotating, the fixing block 21 drives the bearing column 22 to move downwards, so that the height of the bearing column 22 reaches a proper position.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a portal crane that stability can be good, includes bottom plate (1), its characterized in that: the bottom plate is characterized in that a first sliding rail (2) is fixedly connected to the top of the bottom plate (1), the first sliding rail (2) is in rolling connection with a wheel body (3), a rotating shaft (4) is fixedly connected to the axle center of the wheel body (3), one end of the rotating shaft (4) is rotatably connected with a fixed shell (5) through a bearing, a first gear (6) is fixedly connected to the axle center of the other end of the rotating shaft (4), the first gear (6) is meshed with a second gear (7), the second gear (7) is fixedly connected with an electric shaft (8), the electric shaft (8) is rotatably connected with a fixed plate (9) through a bearing, the electric shaft (8) is fixedly connected with the output end of a first motor (10), a support frame (11) is fixedly connected to the top of the fixed shell (5), a sliding groove (12) is fixedly connected to the top of the support frame (11), and the inner wall of the sliding groove (12) is in sliding connection with a rack (13), the rack (13) is fixedly connected with a third gear (14), the axle center of the third gear (14) is fixedly connected with a rotating shaft (15), a fourth gear (16) is fixedly connected at the axis of the rotating shaft (15), the fourth gear (16) is meshed with a helical gear (17), the axle center of the helical gear (17) is fixedly connected with the output end of a second motor (18), the side wall of the second motor (18) is fixedly connected with the fixed seat (19), the rotating shaft (15) is fixedly connected with the connecting plate (20) through a bearing, the side of the rack (13) far away from the tooth is fixedly connected with a fixed block (21), the top of the fixed block (21) is fixedly connected with a bearing column (22), the top of the bearing column (22) is fixedly connected with a second slide rail (23), the second slide rail (23) is connected with a power mechanism (24) in a sliding way, the bottom of the power mechanism (24) is fixedly connected with a hoisting device (25).

2. The portal crane with good stability performance according to claim 1, wherein: the first motor (10) is fixedly connected with the fixing plate (9).

3. The portal crane with good stability performance according to claim 1, wherein: the fixed seat (19) is fixedly connected with the outer side of the sliding groove (12).

4. The portal crane with good stability performance according to claim 1, wherein: the number of the connecting plates (20) is two, the two connecting plates are respectively arranged on two sides of the third gear (14), and the connecting plates (20) are fixedly connected with the side walls of the sliding grooves (12).

5. The portal crane with good stability performance according to claim 1, wherein: the number of the first gears (6) is two, and the positions of the two first gears (6) are symmetrical about the second gear (7).

6. The portal crane with good stability performance according to claim 1, wherein: the helical gear (17) is matched with the fourth gear (16).

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