Stable double-beam bridge crane

Abstract

A stable double-beam bridge crane effectively solves the problem that a corresponding rail locking device is lacked and comprises double main beams, a crane carriage, a lifting hook, supporting legs, a lower end beam, a rail and a cart traveling mechanism, a rail locking mechanism is installed at the end of the lower end beam and comprises a fixing frame, a plurality of guide rails in the horizontal direction are fixed to the fixing frame, and the cart traveling mechanism is arranged on the fixing frame. A first sliding block and a second sliding block are connected to the guide rail in a left-right sliding mode, a first clamping block corresponding to the left side of the rail is installed on the first sliding block, a second clamping block corresponding to the right side of the rail is installed on the second sliding block, a tank located above the rail is fixed to the fixing frame, and a first piston cap located in the first cavity is connected into the tank in an up-down sliding mode. The tank body is in threaded connection with a screw rod, a second piston cap and a third piston cap which are located in the cavity are connected in the tank body in a left-right sliding mode, a first guide rod is fixed between the second piston cap and the first sliding block, and a second guide rod is fixed between the third piston cap and the second sliding block.

Description

Technical Field

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

[0002] Double-girder bridge cranes are widely used in indoor and outdoor industrial and mining enterprises, steel and chemical industries, railway transportation, ports and terminals, and logistics turnover departments and places. Double-girder bridge cranes lack corresponding track locking devices during outdoor use, which poses certain risks, especially in severe weather conditions, such as typhoons and other strong winds. Double-girder bridge cranes may be severely affected by wind, causing the equipment to move, thereby threatening the safety of personnel and equipment at the construction site. 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 stable double-beam bridge crane, which effectively solves the problem of lack of corresponding track locking device.

[0004] The technical solution to the technical problem is as follows: it comprises a double main beam, a lifting trolley, a hook, and a leg, a lower end beam is installed at the lower end of the leg, a track is placed under the lower end beam, a trolley travel mechanism running on the track is installed on the lower end beam, a track locking mechanism corresponding to the track is installed at the end of the lower end beam, the track locking mechanism comprises a fixed frame, the fixed frame is fixedly connected to the lower end beam, a plurality of horizontal guide rails are fixed on the fixed frame, a first slider and a second slider are connected to the guide rail for left and right sliding, a first clamping block corresponding to the left side of the track is installed on the first slider, a second clamping block corresponding to the right side of the track is installed on the second slider, a tank body located above the track is fixed on the fixed frame, and a first chamber, a second chamber, a third chamber and a cavity are arranged in the tank body;

[0005] A first piston cap located in the first chamber is connected to the tank body in an up-and-down sliding manner, a screw is threadedly connected to the tank body, and the lower end of the screw is rotatably connected to the first piston cap. A second piston cap and a third piston cap located in the cavity are connected to the tank body in a left-and-right sliding manner, the left side of the second piston cap is connected to the second chamber, the right side of the third piston cap is connected to the third chamber, the second chamber and the third chamber are respectively connected to the first chamber, a through hole connected to the cavity is provided on the tank body, a first guide rod is fixed between the second piston cap and the first slider, and a second guide rod is fixed between the third piston cap and the second slider.

[0006] Preferably, an oil filling hole is provided on the tank body, and the first chamber, the second chamber and the third chamber are all filled with hydraulic oil.

[0007] Preferably, a handle is installed on the upper end of the screw rod.

[0008] Preferably, anti-slip pads corresponding to the rails are installed on both the first clamping block and the second clamping block.

[0009] Compared with traditional equipment, the utility model has the following advantages: ingenious structure, using hydraulic principle, through the first piston cap sliding up and down in the first chamber, controlling the pressure change of hydraulic oil, and then adjusting the synchronous movement of the second piston cap and the third piston cap, ingeniously controlling the first clamping block and the second clamping block to clamp or loosen the track at the same time, combined with the screw structure, the threaded connection has self-locking property and high stability, thus ensuring the track locking effect, high stability, safety and reliability, simple operation, economy and durability. 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 the left view of the utility model;

[0012] Figure 3 It is a schematic diagram of the front view of the rail locking mechanism in the utility model;

[0013] Figure 4 yes Figure 3 A partially enlarged schematic diagram;

[0014] Figure 5 It is a schematic diagram of the three-dimensional structure of the rail locking mechanism in the utility model;

[0015] Figure 6 It is a schematic diagram of the three-dimensional structure of the first chamber, the second chamber and the third chamber in the utility model.

[0016] Figure numerals: 1. support leg; 2. lower end beam; 3. track; 4. trolley traveling mechanism; 5. track locking mechanism; 6. fixed frame; 7. guide rail; 8. first slider; 9. second slider; 10. first clamping block; 11. second clamping block; 12. tank body; 13. first chamber; 14. second chamber; 15. third chamber; 16. cavity; 17. first piston cap; 18. screw; 19. second piston cap; 20. third piston cap; 21. through hole; 22. first guide rod; 23. second guide rod; 24. handle. DETAILED DESCRIPTION

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0018] Depend on Figures 1 to 6A stable double-beam bridge crane is provided, comprising a double main beam, a lifting trolley, a hook, and a leg 1. A lower end beam 2 is installed at the lower end of the leg 1, a track 3 is placed below the lower end beam 2, a trolley walking mechanism 4 running on the track 3 is installed on the lower end beam 2, a track locking mechanism 5 corresponding to the track 3 is installed at the end of the lower end beam 2, the track locking mechanism 5 comprises a fixed frame 6, the fixed frame 6 is fixedly connected to the lower end beam 2, a plurality of horizontal guide rails 7 are fixed on the fixed frame 6, a first slider 8 and a second slider 9 are connected to the guide rail 7 for left and right sliding movement, a first clamping block 10 corresponding to the left side of the track 3 is installed on the first slider 8, a second clamping block 11 corresponding to the right side of the track 3 is installed on the second slider 9, a tank body 12 located above the track 3 is fixed on the fixed frame 6, and a first chamber 13, a second chamber 14, a third chamber 15 and a cavity 16 are provided in the tank body 12;

[0019] A first piston cap 17 located in the first chamber 13 is slidably connected up and down in the tank body 12, a screw 18 is threadedly connected to the tank body 12, and the lower end of the screw 18 is rotatably connected to the first piston cap 17. A second piston cap 19 and a third piston cap 20 located in the cavity 16 are slidably connected left and right in the tank body 12. The left side of the second piston cap 19 is connected to the second chamber 14, and the right side of the third piston cap 20 is connected to the third chamber 15. The second chamber 14 and the third chamber 15 are respectively connected to the first chamber 13. A through hole 21 connected to the cavity 16 is provided on the tank body 12, a first guide rod 22 is fixed between the second piston cap 19 and the first slider 8, and a second guide rod 23 is fixed between the third piston cap 20 and the second slider 9.

[0020] The tank body 12 is provided with an oil filling hole, and the first chamber 13, the second chamber 14 and the third chamber 15 are all filled with hydraulic oil.

[0021] In order to facilitate the rotation of the screw rod 18 , a handle 24 located outside the tank body 12 is installed at the upper end of the screw rod 18 .

[0022] In order to improve the clamping effect of the first clamping block 10 and the second clamping block 11 on the track 3 , anti-slip pads corresponding to the track 3 are installed on the first clamping block 10 and the second clamping block 11 .

[0023] When the utility model is in use, the lifting trolley drives the hook to move left and right on the double main beams, the trolley walking mechanism 4 runs forward and backward on the track 3, and then the trolley walking mechanism 4 drives the lower end beam 2, the support legs 1, the double main beams, the lifting trolley and the hook to run in the forward and backward directions as a whole. When the double-beam bridge crane is used, the handle 24 is turned, and the handle 24 drives the screw 18 to rotate downward in the tank body 12, and the screw 18 drives the first piston cap 17 to slide downward in the first chamber 13, and then the first piston cap 17 squeezes the hydraulic oil in the first chamber 13 downward, and under the action of the oil pressure, the hydraulic oil in the second chamber 14 drives the second piston cap 19 to slide rightward in the cavity 16. , the first guide rod 22 drives the first slider 8 and the first clamping block 10 to slide to the right. At the same time, the hydraulic oil in the third chamber 15 drives the third piston cap 20 to slide to the left in the cavity 16. The second guide rod 23 drives the second slider 9 and the second clamping block 11 to slide to the left. The first clamping block 10 and the second clamping block 11 move closer to the track 3 at the same time. When the first clamping block 10 and the second clamping block 11 clamp the track 3 at the same time, stop turning the handle 24. The threaded connection has self-locking properties and is easy to operate. The lower end beam 2 is locked together with the track 3 through the locking mechanism, which improves the stability of the double-beam bridge crane, especially in strong wind weather, to prevent the double-beam bridge crane from moving, and has high safety.

[0024] The cavity 16 is connected to the outside air through the through hole 21, and the cavity 16 is always in the atmospheric pressure state, which ensures the smooth sliding of the second piston cap 19 and the third piston cap 20. A sealing ring is installed between the first guide rod 22 and the tank body 12, and a sealing ring is installed between the second guide rod 23 and the tank body 12 to ensure the sealing of the first chamber 13, the second chamber 14 and the third chamber 15. The first slider 8 and the second slider 9 slide left and right on the multiple guide rails 7, which improves the stability of the left and right sliding of the first clamping block 10 and the second clamping block 11;

[0025] Reverse the handle 24, and the handle 24 drives the screw 18 to spirally move upward in the tank body 12, and the first piston cap 17 moves upward in the first chamber 13. The oil pressure in the first chamber 13, the second chamber 14 and the third chamber 15 becomes smaller. Under the action of the atmospheric pressure in the cavity 16, the second piston cap 19 slides to the left and resets, and the third piston cap 20 slides to the right and resets, and then the first clamping block 10 and the second clamping block 11 are simultaneously away from the track 3, and the track locking mechanism 5 is in a loosened state. At this time, the trolley walking mechanism 4 can run on the track 3, and the double-beam bridge crane can be used normally, with convenient operation and high stability.

[0026] 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 stable double-beam bridge crane, comprising a double main beam, a lifting trolley, a hook, a leg (1), a lower end beam (2), a track (3) and a trolley travel mechanism (4), characterized in that: A track locking mechanism (5) corresponding to the track (3) is installed at the end of the lower end beam (2), the track locking mechanism (5) comprising a fixing frame (6), the fixing frame (6) being fixedly connected to the lower end beam (2), a plurality of guide rails (7) in a horizontal direction being fixed on the fixing frame (6), a first slider (8) and a second slider (9) being slidably connected to the guide rail (7) left and right, a first clamping block (10) corresponding to the left side of the track (3) being installed on the first slider (8), a second clamping block (11) corresponding to the right side of the track (3) being installed on the second slider (9), a tank body (12) located above the track (3) being fixed on the fixing frame (6), a first chamber (13), a second chamber (14), a third chamber (15) and a cavity (16) being provided in the tank body (12); A first piston cap (17) located in the first chamber (13) is slidably connected to the tank body (12) in an up-and-down manner. A screw rod (18) is threadedly connected to the tank body (12). The lower end of the screw rod (18) is rotatably connected to the first piston cap (17). A second piston cap (19) and a third piston cap (20) located in the cavity (16) are slidably connected to the tank body (12) in a left-and-right manner. The left side of the second piston cap (19) is connected to the second chamber (14). The right side of the third piston cap (20) is connected to the third chamber (15). The second chamber (14) and the third chamber (15) are respectively connected to the first chamber (13). A through hole (21) connected to the cavity (16) is provided on the tank body (12). A first guide rod (22) is fixed between the second piston cap (19) and the first slider (8). A second guide rod (23) is fixed between the third piston cap (20) and the second slider (9).

2. A stable double-beam bridge crane according to claim 1, characterized in that: The tank body (12) is provided with an oil filling hole, and the first chamber (13), the second chamber (14) and the third chamber (15) are all filled with hydraulic oil.

3. A stable double-beam bridge crane according to claim 1, characterized in that: The upper end of the screw rod (18) is provided with a handle (24) located outside the tank body (12).

4. A stable double-beam bridge crane according to claim 1, characterized in that: Anti-slip pads corresponding to the track (3) are installed on both the first clamping block (10) and the second clamping block (11).

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