A European style double girder bridge crane

Abstract

A European double-girder bridge crane effectively solves the problems of poor buffering effect and easy damage during lifting. It includes double main beams, outriggers, a trolley running mechanism, an electric trolley and a hoist. The electric trolley runs in the left and right directions on the double main beams. End beams are fixed at the left and right ends of the double main beams. A buffer mechanism corresponding to the electric trolley is installed on the end beam. The buffer mechanism includes a first buffer block and a first guide rail. Linkage mechanisms are provided at both front and rear ends of the first guide rail. The two linkage mechanisms are symmetrical about the front and rear directions of the first buffer block. The linkage mechanism includes a slider. The slider slides back and forth on the first guide rail. The slider is hinged to the first buffer block through a connecting rod. A first rack and a baffle are provided on the right side of the slider. The first rack is fixedly connected to the slider. A second rack is fixed on the left side of the baffle. Gears are installed on the end beams. The first rack and the second rack are meshed with the gears at the same time. The second buffer block is connected to the baffle for sliding back and forth.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, in particular to a European style double-girder bridge crane. Background Art

[0002] The European double-girder bridge crane is a kind of lifting equipment with high efficiency, light weight and modular design, which is widely used in industrial manufacturing, logistics warehousing, metallurgy, energy and other fields. Its design concept is derived from European technical standards, and it is characterized by compact structure, stable operation, low energy consumption and convenient maintenance. It is especially suitable for scenes with high requirements for space utilization, precision and automation. During the operation of the crane trolley, in order to prevent the trolley from colliding with the end beam of the bridge, the buffer is an indispensable component to reduce the impact of the crane trolley on the end of the bridge. The existing buffer is installed at the bottom of the trolley or on the inside of the trolley wheel. Due to space limitations, the general buffer is small, the buffering effect is poor, and it is easy to be damaged, which affects the later use of the equipment. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a European double-girder bridge crane, which effectively solves the problems of poor buffering effect and easy damage during the lifting process.

[0004] The technical solution to solve the technical problem is: it includes double main beams, outriggers, a trolley running mechanism, an electric trolley and a hoist, the electric trolley runs in the left and right directions on the double main beams, end beams are fixed at the left and right ends of the double main beams, and a buffer mechanism corresponding to the electric trolley is installed on the end beams, the buffer mechanism includes a first buffer block and a first guide rail, the first guide rail is fixedly connected to the end beam, and linkage mechanisms are provided at both front and rear ends of the first guide rail, and the two linkage mechanisms are symmetrical about the front and rear directions of the first buffer block, the linkage mechanism includes a slider, the slider slides back and forth on the first guide rail, the slider is hinged with a connecting rod, the other end of the connecting rod is hinged with the first buffer block, and the connecting rod is set in an inclined direction, a first rack and a baffle are provided on the right side of the slider, the first rack is fixedly connected to the slider, and a second rack is fixed on the left side of the baffle, a gear located between the first rack and the second rack is installed on the end beam, the first rack and the second rack are meshed with the gear at the same time, and a second buffer block is connected to the baffle for sliding back and forth.

[0005] Preferably, a first spring is sleeved on the first guide rail, and the first spring is located between the slider and the end beam.

[0006] Preferably, the baffle is L-shaped, and a plurality of second springs are installed between the baffle and the second buffer block.

[0007] Preferably, a plurality of second guide rails arranged in the front-to-rear direction are fixed on the end beam, and the baffle moves along the front-to-rear direction of the second guide rails.

[0008] Preferably, the second buffer block is an inclined block.

[0009] Compared with traditional equipment, the utility model has the following advantages: ingenious structure, when the electric trolley runs to the end beam position, the electric trolley first squeezes the first buffer block, the first buffer block drives the slider to move along the first guide rail, the first spring is compressed, and the effect of buffering and anti-collision is achieved; at the same time, combined with the gear rack structure, the two second buffer blocks are controlled to clamp the electric trolley at the same time, the second spring is compressed, and the impact of the electric trolley is buffered again, the buffering effect is good, the service life is long, the safety is high, the maintenance is convenient, and it is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the front view of the utility model;

[0011] Figure 2 It is a schematic diagram of a top view of the utility model;

[0012] Figure 3 yes Figure 2 A is a schematic diagram of a partial enlargement;

[0013] Figure 4 It is a schematic diagram of the three-dimensional structure of the buffer mechanism in the utility model.

[0014] Figure numerals: 1. double main beam; 2. electric trolley; 3. end beam; 4. first buffer block; 5. first guide rail; 6. slider; 7. connecting rod; 8. first rack; 9. baffle; 10. second rack; 11. gear; 12. second buffer block; 13. first spring; 14. second spring; 15. second guide rail. DETAILED DESCRIPTION

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0016] Depend on Figures 1 to 4A European double-girder bridge crane is provided, comprising a double main girder 1, outriggers, a trolley running mechanism, an electric trolley 2 and a hoisting device. The electric trolley 2 runs in the left and right directions on the double main girder 1. End beams 3 are fixed at the left and right ends of the double main girder 1. A buffer mechanism corresponding to the electric trolley 2 is installed on the end beam 3. The buffer mechanism comprises a first buffer block 4 and a first guide rail 5. The first guide rail 5 is fixedly connected to the end beam 3. Both front and rear ends of the first guide rail 5 are provided with linkage mechanisms. The two linkage mechanisms are symmetrical about the front and rear directions of the first buffer block 4. The linkage mechanism comprises Slider 6, slider 6 slides back and forth on the first guide rail 5, slider 6 is hinged with a connecting rod 7, the other end of the connecting rod 7 is hinged with the first buffer block 4, the connecting rod 7 is set in an inclined direction, a first rack 8 and a baffle 9 are provided on the right side of the slider 6, the first rack 8 is fixedly connected to the slider 6, a second rack 10 is fixed on the left side of the baffle 9, a gear 11 located between the first rack 8 and the second rack 10 is installed on the end beam 3, the first rack 8 and the second rack 10 are meshed with the gear 11 at the same time, and a second buffer block 12 is connected to the baffle 9 for sliding back and forth.

[0017] The first guide rail 5 is sleeved with a first spring 13 , and the first spring 13 is located between the slider 6 and the end beam 3 .

[0018] The baffle plate 9 is L-shaped, and a plurality of second springs 14 are installed between the baffle plate 9 and the second buffer block 12 .

[0019] In order to ensure the stability of the front-to-back movement of the baffle 9 , a plurality of second guide rails 15 arranged in the front-to-back direction are fixed to the end beam 3 , and the baffle 9 moves in the front-to-back direction along the second guide rails 15 .

[0020] The second buffer block 12 is an inclined block.

[0021] When the utility model is in use, the first buffer block 4 and the second buffer block 12 are both made of rubber, which can play a certain buffering and protective role on the electric trolley 2. The electric trolley 2 runs in the left and right directions on the European-style double main beam 1. When the electric trolley 2 is close to the end beam 3, the electric trolley 2 first squeezes the first buffer block 4, and the first buffer block 4 moves closer to the end beam 3. The first buffer block 4 drives the slider 6 to move along the first guide rail 5 away from the first buffer block 4 through the connecting rod 7. The first spring 13 is compressed, and the first spring 13 plays a buffering role on the first buffer block 4 and the electric trolley 2. At the same time, the slider 6 drives the first rack 8 to move, and the first rack 8 drives the second rack 10 to move in the opposite direction through the gear 11. The second rack 10 drives the baffle 9 and the second buffer block 12 to move closer to the electric trolley 2. The second buffer blocks 12 on the front and rear sides of the electric trolley 2 clamp the electric trolley 2 at the same time. The second spring 14 is in a compressed state. The second buffer block 12 is an inclined block. The second buffer block 12 can slide back and forth on the baffle 9, which can decompose the impact force of the electric trolley 2. Combined with the second spring 14, the impact of the electric trolley 2 can be buffered again, with good anti-collision effect, safety and reliability.

[0022] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

Claims

1. A European style double-girder bridge crane, comprising double main beams (1), outriggers, a trolley running mechanism, an electric trolley (2) and a sling, wherein the electric trolley (2) runs in the left and right directions on the double main beams (1), end beams (3) are fixed at the left and right ends of the double main beams (1), and a buffer mechanism corresponding to the electric trolley (2) is installed on the end beams (3), characterized in that: The buffer mechanism comprises a first buffer block (4) and a first guide rail (5), the first guide rail (5) being fixedly connected to the end beam (3), a linkage mechanism being provided at both the front and rear ends of the first guide rail (5), the two linkage mechanisms being symmetrical about the front and rear direction of the first buffer block (4), the linkage mechanism comprising a slider (6), the slider (6) sliding forward and backward on the first guide rail (5), the slider (6) being hinged with a connecting rod (7), the other end of the connecting rod (7) being hinged with the first buffer block (4), the connecting rod (7) being arranged in an inclined direction, a first rack (8) and a baffle (9) being provided on the right side of the slider (6), the first rack (8) being fixedly connected to the slider (6), a second rack (10) being fixedly connected to the left side of the baffle (9), a gear (11) being installed between the first rack (8) and the second rack (10) on the end beam (3), the first rack (8) and the second rack (10) being meshed with the gear (11) at the same time, and a second buffer block (12) being slidably connected to the baffle (9) forward and backward.

2. A European style double girder bridge crane according to claim 1, characterized in that: A first spring (13) is sleeved on the first guide rail (5), and the first spring (13) is located between the slider (6) and the end beam (3).

3. A European style double girder bridge crane according to claim 1, characterized in that: The baffle plate (9) is L-shaped, and a plurality of second springs (14) are installed between the baffle plate (9) and the second buffer block (12).

4. A European style double girder bridge crane according to claim 1, characterized in that: A plurality of second guide rails (15) arranged in the front-rear direction are fixed on the end beam (3), and the baffle (9) moves in the front-rear direction along the second guide rails (15).

5. The European style double girder bridge crane according to claim 1, characterized in that: The second buffer block (12) is a tilting block.

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