Deviation rectifying device for bridge crane

Abstract

The invention relates to the technical field of crane deviation rectifying devices, in particular to a bridge crane deviation rectifying device which comprises a main beam, a bridge, a hoisting structure, an adjusting structure, a sweeping structure, a lubricating structure, a triggering structure and a deviation rectifying structure. Goods transported to the bottom end of the crane are hoisted through the hoisting structure, the lifting rope is adjusted through the deviation rectifying structure, the deviation swing amplitude of the lifting rope is reduced, and the stability and safety during cargo hoisting are improved; the distance between the two moving trolleys is adjusted through the adjusting structure, so that goods with different lengths are convenient to hoist, and the applicability of the device is improved; dust and particle sundries on a bridge are swept through the sweeping structure, the stability of tires of the moving trolley during moving is improved, meanwhile, the sweeping structure is convenient to replace, and the sweeping effect is improved; the first screw rod is lubricated and maintained through the lubricating structure, the service life of the first screw rod is prolonged, the lubricating structure is triggered by the triggering structure to dropwise add lubricating oil, and the convenience of lubricating the first screw rod is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crane deviation rectification devices, and more specifically, to a deviation rectification device for a bridge crane. Background Art

[0002] A bridge crane is a lifting equipment that spans over workshops, warehouses, and yards for material hoisting. Since its two ends are seated on tall cement columns or metal brackets and it is shaped like a bridge, the bridge of the bridge crane runs longitudinally along the tracks laid on both sides of the elevated racks, which can make full use of the space under the bridge to hoist materials without being hindered by ground equipment. It is a type of lifting machinery with the widest range of use and the largest number.

[0003] However, when a traditional bridge crane is in use, the hoisted goods are prone to swing greatly under the action of inertia, resulting in low hoisting stability and safety. At the same time, the goods cannot be quickly and effectively hoisted and placed at the designated position, affecting the hoisting efficiency. When the moving trolley moves, dust particles are likely to accumulate on the vehicle-mounted track, affecting the normal movement of the trolley. When hoisting goods with two moving trolleys, it is rather troublesome to adjust the distance between the moving trolleys, and it is not convenient to increase the traction tension of the hoisting rope during hoisting by moving the moving trolleys, and the deviation rectification effect is poor. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a deviation rectification device for a bridge crane.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a deviation rectification device for a bridge crane, including two main girders, a bridge installed between the two main girders, a hoisting structure provided on the bridge, an adjusting structure provided on the hoisting structure, a cleaning structure provided on the hoisting structure, a lubricating structure provided on the hoisting structure, a triggering structure provided on the bridge, and a deviation rectification structure provided on the hoisting structure;

[0006] The hoisting structure includes a first motor and a first screw fixedly connected to the output end of the first motor. The first motor is fixedly connected to the bridge, the first screw is rotatably connected to the bridge, two threaded sleeves are threadedly connected to the first screw, each of the two threaded sleeves is sleeved with a moving trolley, the moving trolley moves on the bridge, an electric hoist is installed on the moving trolley, a hoisting rope is wound around the electric hoist, a movable pulley is wound around the hoisting rope, and a hook is fixedly connected to the movable pulley;

[0007] The deviation rectification structure includes a mounting frame and a second motor fixedly connected to the mounting frame. A mounting frame is fixedly connected to the moving trolley. A deviation rectification plate is slidably connected to the mounting frame. Two deviation rectification holes are provided on the deviation rectification plate. The suspension rope passes through the deviation rectification holes. The output end of the second motor is fixedly connected to a second screw rod. The second screw rod is rotationally connected to the mounting frame and is threadedly connected to the deviation rectification plate.

[0008] Preferably, two guide rods are fixedly connected to the bridge, and the moving trolley is slidably connected to the guide rods.

[0009] Preferably, a guide strip is fixedly connected to the inside of the mounting frame, and the deviation rectification plate is slidably connected to the guide strip.

[0010] Preferably, the adjustment structure includes a first hydraulic rod and a limiting strip fixedly connected to the telescopic end of the first hydraulic rod. A first hydraulic rod is fixedly connected to the moving trolley. A plurality of linearly arranged limiting grooves are provided on the bridge. Another limiting strip is fixedly connected to the limiting strip through two connecting strips. The limiting strip is engaged with the limiting groove. A plurality of guide posts are provided on the moving trolley, and the limiting strip is slidably connected to the guide posts.

[0011] Preferably, a clamping block is fixedly connected to the limiting strip, and two groups of a plurality of card slots arranged in a circular array are provided on the threaded sleeve. The clamping block is engaged with the card slots.

[0012] Preferably, the cleaning structure includes a fixing strip and a mounting groove provided on the fixing strip. Two fixing strips are fixedly connected to the moving trolley. An inserting strip is slidably connected to the inside of the mounting groove. A cleaning brush is fixedly connected to the inserting strip. The cleaning brush abuts against the bridge. The cross sections of the inserting strip and the mounting groove are both T-shaped structures.

[0013] Preferably, a block with an L-shaped cross section is slidably connected to the fixing strip. A guide shaft is fixedly connected to the fixing strip. The block is slidably connected to the guide shaft. A first spring is fixedly connected between the block and the fixing strip.

[0014] Preferably, the lubrication structure includes an oil box and a fixing column fixedly connected to the oil box. An oil box is fixedly connected to the connecting strip. A sliding strip is slidably connected to the fixing column. A second spring is fixedly connected between the oil box and the sliding strip. A convex block is fixedly connected to the sliding strip. A sliding rod is fixedly connected to the sliding strip. The sliding rod is slidably connected to the oil box. A sealing groove is provided on the oil box. A sealing plug is provided inside the sealing groove. The sliding rod is fixedly connected to the sealing plug.

[0015] Preferably, the cross-sections of the sealing plug and the sealing groove are both trapezoidal structures. A oil pipe is fixedly connected to the bottom end of the oil box, and the oil pipe communicates with the sealing groove. A support block is fixedly connected to the moving trolley, and the oil pipe passes through the support block. One end of the oil pipe is located above the first screw rod.

[0016] Preferably, the triggering structure includes two protective frames and a second hydraulic rod fixedly connected to one of the protective frames. One protective frame is provided on each side of the bridge. A lifting strip is fixedly connected to the telescopic end of the second hydraulic rod. A plurality of sliding blocks are fixedly connected to the lifting strip at equal intervals. The sliding blocks are slidably connected to the protective frame. A mounting shaft is fixedly connected to the protective frame, and the lifting strip is slidably connected to the mounting shaft. A plurality of fixed blocks are fixedly connected to the other protective frame at equal intervals.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) For a bridge crane deviation correction device of the present invention, a bridge is provided on the main beam, a lifting structure is provided on the bridge, and a deviation correction structure is provided on the lifting structure. The goods transported to the bottom end of the crane by the lifting structure are adjusted by the deviation correction structure to reduce the amplitude of the offset and swing of the lifting rope, improving the stability and safety during the lifting of the goods.

[0019] (2) For a bridge crane deviation correction device of the present invention, an adjustment structure is provided on the moving trolley. By adjusting the distance between the two moving trolleys through the adjustment structure, it is convenient to lift goods of different lengths, improving the applicability of the device.

[0020] (3) For a bridge crane deviation correction device of the present invention, a cleaning structure is provided on the moving trolley. By cleaning the dust and particulate debris on the bridge through the cleaning structure, the stability of the moving trolley tires during movement is improved, reducing wear. At the same time, the cleaning structure is easy to replace, improving the cleaning effect.

[0021] (4) For a bridge crane deviation correction device of the present invention, a lubrication structure is provided on the moving trolley, and a triggering structure is provided on the bridge. By lubricating and maintaining the first screw rod through the lubrication structure, the service life of the first screw rod is improved. By triggering the lubrication structure to drip lubricating oil through the triggering structure, the convenience of lubricating the first screw rod is improved. Description of the Drawings

[0022] The present invention will be further described below in conjunction with the drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of a bridge crane deviation correction device provided by the present invention;

[0024] Figure 2 For Figure 1Schematic enlarged view of the structure of part A shown;

[0025] Figure 3 is Figure 1 Schematic enlarged view of the structure of part B shown;

[0026] Figure 4 is Figure 3 Schematic enlarged view of the structure of part C shown;

[0027] Figure 5 is Figure 3 Schematic enlarged view of the structure of part D shown;

[0028] Figure 6 is Figure 3 Schematic enlarged view of the structure of part E shown;

[0029] Figure 7 Schematic connection structure diagram of the mobile trolley and the mounting bracket of the present invention;

[0030] Figure 8 is Figure 7 Schematic enlarged view of the structure of part F shown;

[0031] Figure 9 is Figure 8 Schematic enlarged view of the structure of part G shown;

[0032] Figure 10 Schematic connection structure diagram of the deviation correction plate and the suspension rope of the present invention;

[0033] Figure 11 is Figure 10 Schematic enlarged view of the structure of part H shown;

[0034] Figure 12 Schematic connection structure diagram of the electric hoist and the suspension rope of the present invention;

[0035] Figure 13 is Figure 12 Schematic enlarged view of the structure of part I shown;

[0036] Figure 14 Schematic connection structure diagram of the electric hoist and the mobile trolley of the present invention;

[0037] Figure 15 is Figure 14 Schematic enlarged view of the structure of part J shown.

[0038] In the figure: 1, main beam; 2, bridge; 3, lifting structure; 301, first motor; 302, first screw rod; 303, guide rod; 304, threaded sleeve; 305, moving trolley; 306, electric hoist; 307, lifting rope; 308, movable pulley; 309, hook; 4, adjusting structure; 401, first hydraulic rod; 402, limiting strip; 403, limiting groove; 404, connecting strip; 405, guide post; 406, card slot; 407, card block; 5, cleaning structure; 501, fixing strip; 502, installation groove; 503, inserting strip; 504, cleaning brush; 505, stop block; 506, guide shaft; 507, first spring; 6, lubricating structure; 601, oil box; 602, fixing column; 603, sliding strip; 604, second spring; 605, convex block; 606, sliding rod; 607, sealing plug; 608, sealing groove; 609, oil pipe; 610, support block; 7, triggering structure; 701, protective frame; 702, second hydraulic rod; 703, lifting strip; 704, slider; 705, fixing block; 706, installation shaft; 8, deviation rectifying structure; 801, mounting frame; 802, second motor; 803, second screw rod; 804, deviation rectifying plate; 805, guide strip; 806, deviation rectifying hole. Detailed implementation manners

[0039] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0040] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 10 , Figure 12 , Figure 13 , Figure 14 and Figure 15 shown, a deviation rectifying device for a bridge crane according to the present invention includes two main beams 1, a bridge 2 installed between the two main beams 1, a lifting structure 3 provided on the bridge 2, an adjusting structure 4 provided on the lifting structure 3, a cleaning structure 5 provided on the lifting structure 3, a lubricating structure 6 provided on the lifting structure 3, a triggering structure 7 provided on the bridge 2, and a deviation rectifying structure 8 provided on the lifting structure 3;

[0041] The lifting structure 3 includes a first motor 301 and a first screw rod 302 fixedly connected to the output end of the first motor 301. The first motor 301 is fixedly connected to the bridge 2. The first screw rod 302 is rotatably connected to the bridge 2. Two threaded sleeves 304 are threadedly connected to the first screw rod 302. A moving trolley 305 is sleeved on each of the two threaded sleeves 304. The moving trolley 305 moves on the bridge 2. An electric hoist 306 is installed on the moving trolley 305. A lifting rope 307 is wound around the electric hoist 306. A movable pulley 308 is wound around the lifting rope 307. A hook 309 is fixedly connected to the movable pulley 308;

[0042] The deviation correction structure 8 includes a mounting frame 801 and a second motor 802 fixedly connected to the mounting frame 801. The mounting frame 801 is fixedly connected to the moving trolley 305. A deviation correction plate 804 is slidably connected to the mounting frame 801. Two deviation correction holes 806 are provided on the deviation correction plate 804. The lifting rope 307 passes through the deviation correction holes 806. The output end of the second motor 802 is fixedly connected to a second screw rod 803. The second screw rod 803 is rotatably connected to the mounting frame 801. The second screw rod 803 is threadedly connected to the deviation correction plate 804; Two guide rods 303 are fixedly connected to the bridge 2. The moving trolley 305 is slidably connected to the guide rods 303; A guide strip 805 is fixedly connected to the inside of the mounting frame 801. The deviation correction plate 804 is slidably connected to the guide strip 805; When it is necessary to hoist and transport the goods under the bridge 2, first start the adjustment structure 4 to fix the threaded sleeve 304 and the moving trolley 305. Then, start the first motor 301 on the bridge 2. The first motor 301 drives the first screw rod 302 to rotate. The rotation of the first screw rod 302 drives the threaded sleeve 304 to move. The threaded sleeve 304 then drives the moving trolley 305 to move. The setting of the guide rods 303 improves the stability of the moving trolley 305 moving on the bridge 2. After moving the two moving trolleys 305 to directly above the goods, start the electric hoist 306 to lower the lifting rope 307. After the lifting rope 307 is continuously lowered, hang the goods through the hooks 309 at the ends of the two lifting ropes 307. Then start the electric hoist 306 to retract the lifting rope 307. The lifting rope 307 drives the goods to rise. When hoisting the goods, start the second motor 802 on the mounting frame 801 according to the actual situation. The second motor 802 drives the second screw rod 803 to rotate. The rotation of the second screw rod 803 drives the deviation correction plate 804 to slide on the mounting frame 801. The deviation correction plate 804 pulls the lifting rope 307 through the deviation correction holes 806 to offset the lateral force generated by the swing of the goods during hoisting, improving the stability of hoisting the goods. The setting of the guide strip 805 improves the stability of the deviation correction plate 804 when moving.

[0043] Specifically, such as Figure 6 , Figure 8 , Figure 11And Figure 15 As shown, the adjustment structure 4 includes a first hydraulic rod 401 and a limiting strip 402 fixedly connected to the telescopic end of the first hydraulic rod 401. The first hydraulic rod 401 is fixedly connected to the moving trolley 305. A plurality of linearly arranged limiting grooves 403 are provided on the bridge 2. Another limiting strip 402 is fixedly connected to the limiting strip 402 through two connecting strips 404. The limiting strip 402 is engaged with the limiting groove 403. A plurality of guide posts 405 are provided on the moving trolley 305. The limiting strip 402 is slidably connected to the guide posts 405. A clamping block 407 is fixedly connected to the limiting strip 402. Two groups of a plurality of circumferentially arrayed clamping grooves 406 are provided on the threaded sleeve 304. The clamping block 407 is engaged with the clamping grooves 406. When it is necessary to adjust the distance between the two moving trolleys 305, the first hydraulic rod 401 on one moving trolley 305 is started. When one first hydraulic rod 401 contracts, it drives the limiting strip 402 to descend, and then drives the limiting strip 402 to be engaged with the limiting groove 403. At the same time, the clamping block 407 on the limiting strip 402 is no longer engaged with the clamping groove 406 on the threaded sleeve 304. At this time, when the first screw rod 302 is started, the rotation of the first screw rod 302 will drive the threaded sleeve 304 to rotate synchronously inside the moving trolley 305. Therefore, it will not drive the moving trolley 305 to move. However, since the threaded sleeve 304 is fixed to the limiting strip 402 and the clamping block 407 on the other moving trolley 305, when the first screw rod 302 rotates, one threaded sleeve 304 will rotate synchronously, and the other threaded sleeve 304 is driven by the first screw rod 302 to move left and right on the bridge 2, and at the same time drives the moving trolley 305 where it is located to move together, thereby adjusting the distance between the two moving trolleys 305, facilitating the hoisting of different goods, and improving the applicability of the device.

[0044] Specifically, such as Figure 5 、 Figure 8 And 9As shown, the cleaning structure 5 includes a fixed bar 501 and an installation groove 502 provided on the fixed bar 501. Two fixed bars 501 are fixedly connected to the moving trolley 305. An insertion bar 503 is slidably connected inside the installation groove 502. A cleaning brush 504 is fixedly connected to the insertion bar 503. The cleaning brush 504 abuts against the bridge 2. The cross-sections of the insertion bar 503 and the installation groove 502 are both T-shaped structures. A block 505 with an L-shaped cross-section is slidably connected to the fixed bar 501. A guiding shaft 506 is fixedly connected to the fixed bar 501. The block 505 is slidably connected to the guiding shaft 506. A first spring 507 is fixedly connected between the block 505 and the fixed bar 501. When installing the cleaning brush 504, the block 505 can be slid, the first spring 507 is compressed, then the insertion bar 503 on the cleaning brush 504 is aligned with the installation groove 502 on the fixed bar 501, and then the cleaning brush 504 and the insertion bar 503 are inserted into the installation groove 502. Then the block 505 is released, and the first spring 507 resets, driving the block 505 to reset, thereby driving the block 505 to block the installation groove 502 part. At this time, the cleaning brush 504 is installed. The setting of the guiding shaft 506 improves the sliding stability of the block 505 and at the same time avoids the deviation of the first spring 507. When replacing the cleaning brush 504, after pushing the block 505 so that it does not block the installation groove 502, the cleaning brush 504 can be taken out to replace the cleaning brush 504.

[0045] Specifically, as Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 10 , Figure 11 and 15 shown, the lubrication structure 6 includes an oil box 601 and a fixed column 602 fixedly connected to the oil box 601. An oil box 601 is fixedly connected to the connecting bar 404. A sliding bar 603 is slidably connected to the fixed column 602. A second spring 604 is fixedly connected between the oil box 601 and the sliding bar 603. A convex block 605 is fixedly connected to the sliding bar 603. A sliding rod 606 is fixedly connected to the sliding bar 603. The sliding rod 606 is slidably connected to the oil box 601. A sealing groove 608 is provided on the oil box 601. A sealing plug 607 is provided inside the sealing groove 608. The sliding rod 606 is fixedly connected to the sealing plug 607. The cross-sections of the sealing plug 607 and the sealing groove 608 are both trapezoidal structures. A fuel pipe 609 is fixedly connected to the bottom end of the oil box 601. The fuel pipe 609 is communicated with the sealing groove 608. A support block 610 is fixedly connected to the moving trolley 305. The fuel pipe 609 penetrates through the support block 610. One end of the fuel pipe 609 is located above the first screw 302.

[0046] The trigger structure 7 includes two protective frames 701 and a second hydraulic rod 702 fixedly connected to one of the protective frames 701. A protective frame 701 is provided on each side of the bridge 2. The telescopic end of the second hydraulic rod 702 is fixedly connected with a lifting bar 703. A plurality of sliders 704 are fixedly connected to the lifting bar 703 at equal intervals. The sliders 704 are slidably connected with the protective frame 701. A mounting shaft 706 is fixedly connected to the protective frame 701. The lifting bar 703 is slidably connected with the mounting shaft 706. A plurality of fixed blocks 705 are fixedly connected to the other protective frame 701 at equal intervals; when maintenance is required for the first screw 302, the first motor 301 can be started to drive the moving trolley 305 to move, and then the second hydraulic rod 702 is started. The contraction of the second hydraulic rod 702 drives the lifting bar 703 to descend. The descent of the lifting bar 703 drives the sliders 704 to descend. The arrangement of the mounting shaft 706 improves the stability of the up-and-down sliding of the lifting bar 703. When the moving trolley 305 moves, it will drive the sliding bar 603 to move together. The convex block 605 on the sliding bar 603 abuts against the slider 704. The edge of the convex block 605 is arc-shaped. Therefore, when the moving trolley 305 moves, the convex block 605 will descend under the abutting action of the slider 704. The descent of the convex block 605 drives the sliding bar 603 to descend, and the second spring 604 is compressed. The arrangement of the fixed column 602 improves the stability of the downward sliding of the sliding bar 603. When the sliding bar 603 slides downward, it will drive the sliding rod 606 to slide downward. The downward sliding of the sliding rod 606 drives the sealing plug 607 to slide downward. The sealing plug 607 no longer blocks the sealing groove 608. The lubricating oil inside the oil box 601 flows into the inside of the oil pipe 609 from the sealing groove 608, and then drips onto the first screw 302 from the other end of the oil pipe 609, lubricating the first screw 302. When lubrication is not required, the lifting bar 703 can be raised. The convex block 605 will not abut against the slider 704. The sealing plug 607 is always sealed with the sealing groove 608 under the elastic force of the second spring 604. The arrangement of the support block 610 improves the stability of the oil pipe 609.

[0047] When the present invention is in use, first, when it is necessary to hoist and transport the goods under the bridge 2, the adjustment structure 4 is first started to fix the threaded sleeve 304 to the moving trolley 305. Then, the first motor 301 on the bridge 2 is started. The first motor 301 drives the first screw rod 302 to rotate. The rotation of the first screw rod 302 drives the threaded sleeve 304 to move. The threaded sleeve 304 then drives the moving trolley 305 to move. The setting of the guide rod 303 improves the stability of the moving trolley 305 moving on the bridge 2. After moving the two moving trolleys 305 to directly above the goods, the electric hoist 306 is started to lower the hoisting rope 307. After the hoisting rope 307 is continuously lowered, the goods are hung by the hooks 309 at the ends of the two hoisting ropes 307. Then, the electric hoist 306 is started again to retract the hoisting rope 307, and the hoisting rope 307 drives the goods to rise. When hoisting the goods, according to the actual situation, the second motor 802 on the mounting frame 801 is started. The second motor 802 drives the second screw rod 803 to rotate. The rotation of the second screw rod 803 drives the deviation rectifying plate 804 to slide on the mounting frame 801. The deviation rectifying plate 804 pulls the hoisting rope 307 through the deviation rectifying hole 806 to offset the lateral force generated by the swing of the goods during hoisting, improving the stability of hoisting the goods. The setting of the guide strip 805 improves the stability of the deviation rectifying plate 804 when moving;

[0048] Then, when it is necessary to adjust the distance between the two moving trolleys 305, the first hydraulic rod 401 on one moving trolley 305 is started. The contraction of one first hydraulic rod 401 drives the limit strip 402 to descend, and then drives the limit strip 402 to engage with the limit groove 403. At the same time, the clamping block 407 on the limit strip 402 no longer engages with the clamping groove 406 on the threaded sleeve 304. At this time, when the first screw rod 302 is started, the rotation of the first screw rod 302 will drive the threaded sleeve 304 to rotate synchronously inside the moving trolley 305, so it will not drive the moving trolley 305 to move. However, for the other moving trolley 305, since the threaded sleeve 304 is fixed to the limit strip 402 and the clamping block 407 on the moving trolley 305, when the first screw rod 302 rotates, one threaded sleeve 304 will rotate synchronously, and the other threaded sleeve 304 is driven by the first screw rod 302 to move left and right on the bridge 2, and at the same time drives the moving trolley 305 where it is located to move together, thereby adjusting the distance between the two moving trolleys 305, facilitating the hoisting of different goods and improving the applicability of the device;

[0049] Secondly, when the cleaning brush 504 needs to be installed, the stopper 505 can be slid, the first spring 507 is compressed, and then the insertion bar 503 on the cleaning brush 504 is aligned with the installation groove 502 on the fixed bar 501. Then, the cleaning brush 504 and the insertion bar 503 are inserted into the installation groove 502. Then, the stopper 505 is released, and the first spring 507 resets, driving the stopper 505 to reset, and further driving the stopper 505 to block the installation groove 502. At this time, the cleaning brush 504 is installed. The setting of the guide shaft 506 improves the sliding stability of the stopper 505 and avoids the deviation of the first spring 507 at the same time. When the cleaning brush 504 needs to be replaced, after pushing the stopper 505 so that it does not block the installation groove 502, the cleaning brush 504 can be pulled out to replace the cleaning brush 504;

[0050] Finally, when maintenance is required for the first screw rod 302, the first motor 301 can be started to drive the moving trolley 305 to move. Then, the second hydraulic rod 702 is started, and the second hydraulic rod 702 contracts to drive the lifting bar 703 to descend. The descending of the lifting bar 703 drives the slider 704 to descend. The setting of the installation shaft 706 improves the up-and-down sliding stability of the lifting bar 703. When the moving trolley 305 moves, it will drive the sliding bar 603 to move together. The convex block 605 on the sliding bar 603 abuts against the slider 704. The edge of the convex block 605 is arc-shaped. Therefore, when the moving trolley 305 moves, the convex block 605 will descend under the abutting action of the slider 704. The descending of the convex block 605 drives the sliding bar 603 to descend, and the second spring 604 is compressed. The setting of the fixed column 602 improves the downward sliding stability of the sliding bar 603. When the sliding bar 603 slides downward, it will drive the sliding rod 606 to slide downward. The downward sliding of the sliding rod 606 drives the sealing plug 607 to slide downward. The sealing plug 607 no longer blocks the sealing groove 608. The lubricating oil inside the oil box 601 flows into the inside of the oil pipe 609 from the sealing groove 608 and then drips onto the first screw rod 302 from the other end of the oil pipe 609 to lubricate the first screw rod 302. When lubrication is not required, the lifting bar 703 can be raised. The convex block 605 will not abut against the slider 704. The sealing plug 607 is always sealed with the sealing groove 608 under the elastic force of the second spring 604. The setting of the support block 610 improves the stability of the oil pipe 609.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A deviation rectifying device for a bridge crane, characterized in that, It includes two main girders (1), a bridge (2) installed between the two main girders (1), a lifting structure (3) provided on the bridge (2), an adjusting structure (4) provided on the lifting structure (3), a cleaning structure (5) provided on the lifting structure (3), a lubricating structure (6) provided on the lifting structure (3), a triggering structure (7) provided on the bridge (2), and a deviation rectifying structure (8) provided on the lifting structure (3); The lifting structure (3) includes a first motor (301) and a first screw rod (302) fixedly connected to the output end of the first motor (301). The first motor (301) is fixedly connected to the bridge (2). The first screw rod (302) is rotatably connected to the bridge (2). Two threaded sleeves (304) are threadedly connected to the first screw rod (302). A moving trolley (305) is sleeved on each of the two threaded sleeves (304). The moving trolley (305) moves on the bridge (2). An electric hoist (306) is installed on the moving trolley (305). A lifting rope (307) is wound around the electric hoist (306). A movable pulley (308) is wound around the lifting rope (307). A hook (309) is fixedly connected to the movable pulley (308); The deviation rectifying structure (8) includes a mounting frame (801) and a second motor (802) fixedly connected to the mounting frame (801). The mounting frame (801) is fixedly connected to the moving trolley (305). A deviation rectifying plate (804) is slidably connected to the mounting frame (801). Two deviation rectifying holes (806) are provided on the deviation rectifying plate (804). The lifting rope (307) passes through the deviation rectifying holes (806). The output end of the second motor (802) is fixedly connected to a second screw rod (803). The second screw rod (803) is rotatably connected to the mounting frame (801). The second screw rod (803) is threadedly connected to the deviation rectifying plate (804).

2. The deviation rectifying device of a bridge crane according to claim 1, wherein: Two guide rods (303) are fixedly connected to the bridge (2). The moving trolley (305) is slidably connected to the guide rods (303).

3. The deviation rectification device for a bridge crane according to claim 1, characterized in that: A guide bar (805) is fixedly connected to the inside of the mounting frame (801). The deviation rectifying plate (804) is slidably connected to the guide bar (805).

4. A deviation rectification device for a bridge crane according to claim 1, characterized in that: The adjusting structure (4) includes a first hydraulic rod (401) and a limiting strip (402) fixedly connected to the telescopic end of the first hydraulic rod (401). The first hydraulic rod (401) is fixedly connected to the moving trolley (305). A plurality of linearly arranged limiting grooves (403) are provided on the bridge (2). Another limiting strip (402) is fixedly connected to the limiting strip (402) through two connecting strips (404). The limiting strip (402) is engaged with the limiting groove (403). A plurality of guide posts (405) are provided on the moving trolley (305). The limiting strip (402) is slidably connected to the guide posts (405).

5. The deviation rectifying device for a bridge crane according to claim 4, characterized in that: A clamping block (407) is fixedly connected to the limiting strip (402), two groups of multiple card slots (406) arranged in a circumferential array are provided on the threaded sleeve (304), and the clamping block (407) is engaged with the card slots (406).

6. The deviation rectification device for a bridge crane according to claim 4, characterized in that: The cleaning structure (5) includes a fixed strip (501) and a mounting groove (502) provided on the fixed strip (501). Two fixed strips (501) are fixedly connected to the moving trolley (305). An insertion strip (503) is slidably connected inside the mounting groove (502). A cleaning brush (504) is fixedly connected to the insertion strip (503). The cleaning brush (504) abuts against the bridge (2). The cross-sections of the insertion strip (503) and the mounting groove (502) are both T-shaped structures.

7. The deviation rectification device for a bridge crane according to claim 6, characterized in that: A block (505) with an L-shaped cross-section is slidably connected to the fixed strip (501). A guide shaft (506) is fixedly connected to the fixed strip (501). The block (505) is slidably connected to the guide shaft (506). A first spring (507) is fixedly connected between the block (505) and the fixed strip (501).

8. The deviation rectification device of a bridge crane according to claim 4, characterized in that: The lubricating structure (6) includes an oil box (601) and a fixed column (602) fixedly connected to the oil box (601). An oil box (601) is fixedly connected to the connecting strip (404). A sliding strip (603) is slidably connected to the fixed column (602). A second spring (604) is fixedly connected between the oil box (601) and the sliding strip (603). A convex block (605) is fixedly connected to the sliding strip (603). A sliding rod (606) is fixedly connected to the sliding strip (603). The sliding rod (606) is slidably connected to the oil box (601). A sealing groove (608) is provided on the oil box (601). A sealing plug (607) is provided inside the sealing groove (608). The sliding rod (606) is fixedly connected to the sealing plug (607).

9. The deviation rectifying device for a bridge crane according to claim 8, characterized in that: The cross-sections of the sealing plug (607) and the sealing groove (608) are both trapezoidal structures. A fuel pipe (609) is fixedly connected to the bottom end of the oil box (601). The fuel pipe (609) communicates with the sealing groove (608). A support block (610) is fixedly connected to the moving trolley (305). The fuel pipe (609) passes through the support block (610). One end of the fuel pipe (609) is located above the first screw rod (302).

10. A deviation rectification device for a bridge crane according to claim 1, characterized in that: The trigger structure (7) includes two protective frames (701) and a second hydraulic rod (702) fixedly connected to one of the protective frames (701). One protective frame (701) is provided on each side of the bridge (2). A lifting bar (703) is fixedly connected to the telescopic end of the second hydraulic rod (702). A plurality of sliders (704) are fixedly connected to the lifting bar (703) at equal intervals. The sliders (704) are slidably connected to the protective frame (701). A mounting shaft (706) is fixedly connected to the protective frame (701). The lifting bar (703) is slidably connected to the mounting shaft (706). A plurality of fixed blocks (705) are fixedly connected to the other protective frame (701) at equal intervals.

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