New automatic windproof rail clamping device for portal crane

Abstract

The present invention discloses a new type of automatic windproof rail clamping device for a gantry crane, and relates to the technical field of gantry cranes. The new type of automatic windproof rail clamping device for a gantry crane comprises a crane body and a slide rail, wherein the crane body comprises a base, and the base slides on the slide rail, and further comprises: an installation box, wherein the installation box is fixedly connected to the side wall of the base, and the inner side wall of the installation box is slidably connected with a first movable plate, a hydraulic cylinder is installed between the top of the first movable plate and the top of the installation box, and a slide groove is provided at the bottom of the installation box, and a clamping block is inserted in the slide groove. The new type of automatic windproof rail clamping device for a gantry crane can automatically blow and clean the top of the slide rail before clamping the rail, and can detect the state of the rail clamping when clamping the rail, and when the hydraulic system of the hydraulic cylinder fails or the pressure is insufficient, the rail can be clamped manually using tools such as a torque wrench, so that the effect of the rail clamping is better, safer and more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of portal cranes, in particular to a new type of automatic windproof rail clamping equipment for portal cranes. Background Art

[0002] When the gantry crane is not working, due to the high frame of the gantry crane, the gantry crane is easy to slide back and forth under the action of wind, which will undoubtedly increase the safety hazard of the use of the gantry crane. In order to prevent the influence of wind, it is necessary to install a track clamp at the bottom of the gantry crane. The track clamp is a crane safety device that prevents the outdoor crane from sliding along the track under the action of strong wind. Usually, a clamp connected to the bottom structure of the crane is used to clamp the top of the track to prevent sliding. When working, it needs to be driven by a hydraulic cylinder.

[0003] However, when the existing automatic windproof new track clamping equipment of the gantry crane is in use, when the hydraulic system of the hydraulic cylinder fails or the pressure is low, the track clamping effect is poor or fails, which is not safe and reliable. In addition, dust and debris are easily accumulated on the top of the track. If it is not cleaned in time, it will also affect the track clamping effect. Summary of the invention

[0004] The object of the present invention is to provide a new type of automatic windproof rail clamping device for a portal crane to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a new type of automatic windproof rail clamping device for a portal crane, comprising a crane body and a slide rail, wherein the crane body comprises a base, and the base slides on the slide rail, and further comprises:

[0006] An installation box, wherein the installation box is fixedly connected to the side wall of the base, and the inner side wall of the installation box is slidably connected with a first movable plate, a hydraulic cylinder is installed between the top of the first movable plate and the top of the installation box, and a slide groove is opened at the bottom of the installation box, a clamping block is inserted in the slide groove, and the top of the clamping block is fixedly connected with a second movable plate, and a third movable plate is arranged between the first movable plate and the second movable plate;

[0007] A lifting mechanism, for lifting and lowering the third movable plate, the lifting mechanism being arranged at the bottom of the first movable plate;

[0008] A telescopic mechanism, for connecting the third movable plate and the second movable plate, the telescopic mechanism being arranged at the bottom of the third movable plate;

[0009] A cleaning mechanism, for blowing air to clean the slide rail, the cleaning mechanism being arranged on the side wall of the clamping block;

[0010] A first detection mechanism, for detecting the movement of the second movable plate, wherein the first detection mechanism is arranged on the top of the second movable plate;

[0011] A second detection mechanism, which is used to detect the movement of the third movable plate, is arranged on the top of the third movable plate.

[0012] Preferably, the lifting mechanism includes a first set of rods fixedly connected to the bottom of the first movable plate, and the side wall of the first set of rods is sleeved with a first sleeve, the lower end of the first sleeve is fixed to the top of the third movable plate, and the bottom of the first movable plate is rotatably connected to a threaded rod, the side wall of the threaded rod is threadedly connected to a threaded tube, and the lower end of the threaded tube is fixed to the top of the third movable plate, and the rotation of the threaded rod is driven by a driving mechanism.

[0013] Preferably, the pushing mechanism includes a first gear fixedly mounted on the side wall of the threaded rod, and the bottom of the first movable plate is connected to the first rack through a guide mechanism, the side wall of the first rack is fixedly connected to a connecting plate, and the side wall of the connecting plate is fixedly connected to a second rack, and a second gear is rotatably connected inside the installation box through a driving mechanism.

[0014] Preferably, the guiding mechanism comprises two symmetrically arranged connecting blocks fixedly connected to the bottom of the first movable plate, and the side walls of the connecting blocks are fixedly connected to guide rods, the side walls of the guide rods are sleeved with sliding blocks, and the sliding blocks are fixed to the bottom of the first rack.

[0015] Preferably, the driving mechanism includes a rotating rod rotatably connected to the top of the installation box, and the second gear is fixed to the lower end of the rotating rod, the upper end of the rotating rod passes through the top of the installation box and is provided with a rectangular groove, and the side wall of the rotating rod is provided with a through hole.

[0016] Preferably, the telescopic mechanism includes two symmetrically arranged second sleeves fixedly connected to the bottom of the third movable plate, and a second sleeve rod is inserted into the second sleeve, the lower end of the second sleeve rod is fixed to the top of the second movable plate, and the side wall of the second sleeve is sleeved with a spring.

[0017] Preferably, the cleaning mechanism includes an L-shaped plate fixedly connected to the side wall of the clamping block, and a hollow cover is fixedly connected to the bottom of the L-shaped plate, the side wall of the hollow cover is provided with a plurality of blowing holes arranged in an array, and an air supply mechanism for driving the blowing holes for blowing is provided at the bottom of the installation box.

[0018] Preferably, the air supply mechanism includes an air storage hood fixedly connected to the bottom of the installation box, and a sliding plate is slidably connected inside the air storage hood, the sliding plate is fixed to the bottom of the second movable plate, and the side wall of the air storage hood is fixedly connected to an air intake pipe, a first one-way valve is arranged in the air intake pipe, and a hose is fixedly connected to the side wall of the air storage hood, a second one-way valve is arranged in the hose, and the other end of the hose is fixedly inserted in the side wall of the air storage hood.

[0019] Preferably, the first detection mechanism includes a first indicator plate fixedly connected to the top of the second movable plate, and the upper end of the first indicator plate passes through the top of the installation box and is provided with a first scale mark, the top of the installation box is fixedly connected with a first L-shaped pointer, the top of the installation box is fixedly connected with a first mounting plate, and the side wall of the first mounting plate is fixedly inserted with a first visual sensor.

[0020] Preferably, the second detection mechanism includes a second indicator plate fixedly connected to the top of the third movable plate, and the upper end of the second indicator plate passes through the top of the installation box and is provided with a second scale mark, the top of the installation box is fixedly connected with a second L-shaped pointer, the top of the installation box is fixedly connected with a second mounting plate, and the side wall of the second mounting plate is fixedly inserted with a second visual sensor.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The new type of automatic windproof rail clamping device of the gantry crane is provided with a driving mechanism, etc. When the rail clamping is required, the hydraulic cylinder is started to push the first movable plate to move downward, and the third movable plate is pushed downward by the lifting mechanism, and then the second movable plate and the clamping block are driven downward by the telescopic mechanism. When the clamping block abuts against the top of the slide rail, the spring is gradually compressed, thereby clamping the top of the slide rail, which can automatically prevent the crane body from wind. When the hydraulic system of the hydraulic cylinder fails or the pressure is insufficient, the rotating rod can be rotated by a torque wrench. The rotation of the rotating rod drives the rotation of the second gear, thereby driving the second rack to move. When the second rack moves, it drives the first rack to move through the connecting plate, and then drives the first gear and the threaded rod to rotate. When the threaded rod rotates, it pushes the threaded tube and the third movable plate to continue to move downward, so that the spring continues to be compressed, thereby ensuring that the extrusion force between the clamping block and the top of the slide rail is sufficient, ensuring the rail clamping effect, and being safer and more reliable.

[0023] (2) The new type of automatic windproof rail clamping equipment of this gantry crane is provided with a cleaning mechanism, etc. When clamping the rail, the second movable plate and the clamping block move downward. When the clamping block moves downward, the hollow cover is driven to move downward synchronously through the L-shaped plate. At the same time, when the second movable plate moves downward, it drives the sliding plate to move downward in the air storage cover, so that the air in the air storage cover can be squeezed. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the air in the air storage cover is squeezed and enters the hollow cover through the hose, and is blown onto the top of the slide rail through the blowing hole. Therefore, before clamping the rail, the top of the slide rail can be automatically blown and cleaned, making the rail clamping effect better, safer and more reliable.

[0024] (3) The new type of automatic windproof rail clamping device of the gantry crane is provided with a first detection mechanism and a second detection mechanism. When the second movable plate moves downward, it drives the first indicator plate to move downward synchronously. At this time, the first visual sensor detects the first scale mark indicated by the first pointer to determine whether the clamping block is completely in contact with the top of the slide rail. When the third movable plate moves downward, it drives the second indicator plate to move downward synchronously. When the clamping block contacts the top of the slide rail, the second visual sensor detects the second scale mark indicated by the second pointer to determine the compression amount of the spring, and then determines the squeezing force between the clamping block and the top of the slide rail. In this way, the state of the rail clamping can be detected to ensure the effect of the rail clamping, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the installation box in the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the installation box in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the lifting mechanism in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the gas supply mechanism in the present invention;

[0030] Figure 6 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 7 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 8 for Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0033] Fig. 9 for Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0034] In the figure: 1. Crane body; 101. Base; 2. Lifting mechanism; 201. First set of rods; 202. First sleeve; 203. Threaded pipe; 204. Threaded rod; 3. Pushing mechanism; 301. First gear; 302. First rack; 303. Connecting plate; 304. Second rack; 305. Second gear; 4. Driving mechanism; 401. Rotating rod; 402. Rectangular groove; 403. Through hole; 5. Telescopic mechanism; 501. Second sleeve; 502. Second set of rods; 503. Spring; 6. Guide mechanism; 601. Connecting block; 602. Guide rod; 603. Sliding block; 7. First detecting mechanism; 701. First indicating plate; 702. First engraving degree mark; 703, first pointer; 704, first mounting plate; 705, first visual sensor; 8, second detection mechanism; 801, second indicator plate; 802, second scale mark; 803, second pointer; 804, second mounting plate; 805, second visual sensor; 9, cleaning mechanism; 901, L-shaped plate; 902, hollow cover; 903, blowing hole; 10, air supply mechanism; 1001, air storage cover; 1002, sliding plate; 1003, air inlet pipe; 1004, hose; 11, slide rail; 12, mounting box; 13, first movable plate; 14, hydraulic cylinder; 15, slide groove; 16, clamping block; 17, second movable plate; 18, third movable plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-Figure 9 The present invention provides a technical solution: a new type of automatic windproof rail clamping device for a portal crane, comprising a crane body 1 and a slide rail 11, wherein the crane body 1 comprises a base 101, and the base 101 slides on the slide rail 11, and further comprises:

[0037] An installation box 12 is fixedly connected to the side wall of the base 101, and a first movable plate 13 is slidably connected to the inner side wall of the installation box 12, a hydraulic cylinder 14 is installed between the top of the first movable plate 13 and the top of the installation box 12, and a slide groove 15 is opened at the bottom of the installation box 12, a clamping block 16 is inserted in the slide groove 15, and a second movable plate 17 is fixedly connected to the top of the clamping block 16, and a third movable plate 18 is arranged between the first movable plate 13 and the second movable plate 17;

[0038] A lifting mechanism 2, which is used to lift and lower the third movable plate 18, is arranged at the bottom of the first movable plate 13;

[0039] The telescopic mechanism 5 for connecting the third movable plate 18 and the second movable plate 17 is arranged at the bottom of the third movable plate 18;

[0040] A cleaning mechanism 9 for blowing air to clean the slide rail 11 is arranged on the side wall of the clamping block 16;

[0041] A first detection mechanism 7 for detecting the movement of the second movable plate 17 is disposed on the top of the second movable plate 17;

[0042] The second detection mechanism 8, which is used to detect the movement of the third movable plate 18, is arranged on the top of the third movable plate 18. Before clamping the rail, the top of the slide rail 11 can be automatically blown and cleaned. When clamping the rail, the clamping state of the rail can be detected. Moreover, when the hydraulic system of the hydraulic cylinder 14 fails or the pressure is insufficient, the rail can be manually clamped with tools such as a torque wrench, so that the rail clamping effect is better, safer and more reliable.

[0043] The lifting mechanism 2 includes a first set of rods 201 fixedly connected to the bottom of the first movable plate 13, and the side wall of the first set of rods 201 is sleeved with a first sleeve 202, the lower end of the first sleeve 202 is fixed to the top of the third movable plate 18, and the bottom of the first movable plate 13 is rotatably connected with a threaded rod 204, the side wall of the threaded rod 204 is threadedly connected with a threaded tube 203, and the lower end of the threaded tube 203 is fixed to the top of the third movable plate 18, the rotation of the threaded rod 204 is driven by the pushing mechanism 3, and the threaded rod 204 is driven to rotate by the pushing mechanism 3. When the threaded rod 204 rotates, the threaded tube 203 and the third movable plate 18 are pushed to be lifted or lowered.

[0044] The pushing mechanism 3 includes a first gear 301 fixedly sleeved on the side wall of the threaded rod 204, and the bottom of the first movable plate 13 is connected to the first rack 302 through the guide mechanism 6, the side wall of the first rack 302 is fixedly connected to the connecting plate 303, and the side wall of the connecting plate 303 is fixedly connected to the second rack 304, and the second gear 305 is rotatably connected to the installation box 12 through the driving mechanism 4, and the second gear 305 is driven to rotate by the driving mechanism 4, thereby driving the second rack 304 to move. When the second rack 304 moves, it drives the first rack 302 to move through the connecting plate 303, and then drives the first gear 301 and the threaded rod 204 to rotate.

[0045] The guiding mechanism 6 includes two symmetrically arranged connecting blocks 601 fixedly connected to the bottom of the first movable plate 13, and the side walls of the connecting blocks 601 are fixedly connected to the guide rods 602, the side walls of the guide rods 602 are sleeved with sliders 603, and the sliders 603 are fixed to the bottom of the first rack 302, guiding the movement of the first rack 302.

[0046] The driving mechanism 4 includes a rotating rod 401 rotatably connected to the top of the installation box 12, and the second gear 305 is fixed to the lower end of the rotating rod 401, the upper end of the rotating rod 401 passes through the top of the installation box 12 and is provided with a rectangular groove 402, and the side wall of the rotating rod 401 is provided with a through hole 403, the head of the torque wrench is inserted into the rectangular groove 402 to rotate the rotating rod 401, or the steel bar is inserted into the through hole 403 to rotate the rotating rod 401, the rotation of the rotating rod 401 drives the rotation of the second gear 305, thereby driving the second rack 304 to move, and when the second rack 304 moves, it drives the first rack 302 to move through the connecting plate 303, and then drives the first gear 301 and the threaded rod 204 to rotate.

[0047] The telescopic mechanism 5 includes two symmetrically arranged second sleeves 501 fixedly connected to the bottom of the third movable plate 18, and a second sleeve rod 502 is inserted into the second sleeve 501. The lower end of the second sleeve rod 502 is fixed to the top of the second movable plate 17, and a spring 503 is sleeved on the side wall of the second sleeve 501. When the clamping block 16 abuts against the top of the slide rail 11, the spring 503 is gradually compressed.

[0048] The cleaning mechanism 9 includes an L-shaped plate 901 fixedly connected to the side wall of the clamping block 16, and a hollow cover 902 is fixedly connected to the bottom of the L-shaped plate 901. The side wall of the hollow cover 902 is provided with a plurality of blowing holes 903 arranged in an array, and the bottom of the mounting box 12 is provided with an air supply mechanism 10 for driving the blowing holes 903 to blow air. When clamping the rail, the second movable plate 17 and the clamping block 16 move downward. When the clamping block 16 moves downward, the hollow cover 902 is driven to move downward synchronously through the L-shaped plate 901. At the same time, air is driven by the air supply mechanism 10 to enter the hollow cover 902 through the hose 1004 and blown onto the top of the slide rail 11 through the blowing holes 903. Therefore, before clamping the rail, the top of the slide rail 11 can be automatically blown and cleaned, so that the effect of clamping the rail is better, safer and more reliable.

[0049] The air supply mechanism 10 includes an air storage cover 1001 fixedly connected to the bottom of the installation box 12, and a sliding plate 1002 is slidably connected in the air storage cover 1001, and the sliding plate 1002 is fixed to the bottom of the second movable plate 17, and the side wall of the air storage cover 1001 is fixedly connected to an air intake pipe 1003, and a first one-way valve is arranged in the air intake pipe 1003, and the conduction direction of the first one-way valve is from the outside to the air storage cover 1001, and a hose 1004 is fixedly connected to the side wall of the air storage cover 1001, and a second one-way valve is arranged in the hose 1004, and the conduction direction of the second one-way valve is from the air storage cover 1001 to the hollow cover 902, and the other end of the hose 1004 is fixedly inserted in the side wall of the air storage cover 1001, and when the clamping block 16 moves downward, it passes through the L-shaped plate 901 It drives the hollow cover 902 to move downward synchronously. At the same time, when the second movable plate 17 moves downward, it drives the sliding plate 1002 to move downward in the air storage cover 1001, so that the air in the air storage cover 1001 can be squeezed. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the air in the air storage cover 1001 is squeezed and enters the hollow cover 902 through the hose 1004, and is blown onto the top of the slide rail 11 through the blowing hole 903. When the second movable plate 17 moves upward and resets, it drives the sliding plate 1002 to move upward synchronously, so that negative pressure is generated in the air storage cover 1001. At the same time, the first one-way mechanism is opened and the second one-way mechanism is closed. At this time, external air enters the air storage cover 1001 through the air inlet pipe 1003.

[0050] The first detection mechanism 7 includes a first indicator plate 701 fixedly connected to the top of the second movable plate 17, and the upper end of the first indicator plate 701 passes through the top of the installation box 12 and is provided with a first scale mark 702, the top of the installation box 12 is fixedly connected with a first pointer 703 set in an L shape, the top of the installation box 12 is fixedly connected with a first mounting plate 704, and the side wall of the first mounting plate 704 is fixedly inserted with a first visual sensor 705. When clamping the rail, when the second movable plate 17 moves downward, it drives the first indicator plate 701 to move downward synchronously. At this time, the first scale mark 702 indicated by the first pointer 703 is detected by the first visual sensor 705 to determine whether the clamping block 16 is completely fitted with the top of the slide rail 11.

[0051] The second detection mechanism 8 includes a second indicator plate 801 fixedly connected to the top of the third movable plate 18, and the upper end of the second indicator plate 801 passes through the top of the installation box 12 and is provided with a second scale mark 802, and the top of the installation box 12 is fixedly connected with a second pointer 803 set in an L shape, and the top of the installation box 12 is fixedly connected with a second mounting plate 804, and the side wall of the second mounting plate 804 is fixedly inserted with a second visual sensor 805. When the third movable plate 18 moves downward, it drives the second indicator plate 801 to move downward synchronously. When the clamping block 16 is against the top of the slide rail 11, the second scale mark 802 indicated by the second pointer 803 is detected by the second visual sensor 805, and the compression amount of the spring 503 can be determined, and then the extrusion force between the clamping block 16 and the top of the slide rail 11 can be determined, so that the state of the clamping rail can be detected to ensure the effect of the clamping rail, which is safer and more reliable.

[0052] Working principle: When in use, when it is necessary to clamp the rail, start the hydraulic cylinder 14 to push the first movable plate 13 downward, push the third movable plate 18 downward through the lifting mechanism 2, and then drive the second movable plate 17 and the clamping block 16 downward through the telescopic mechanism 5. When the clamping block 16 abuts against the top of the slide rail 11, the spring 503 is gradually compressed, thereby clamping the top of the slide rail 11, which can automatically prevent wind from reaching the crane body 1.

[0053] At the same time, when clamping the rail, the second movable plate 17 and the clamping block 16 move downward. When the clamping block 16 moves downward, the hollow cover 902 is driven to move downward synchronously through the L-shaped plate 901. At the same time, when the second movable plate 17 moves downward, it drives the sliding plate 1002 to move downward in the air storage cover 1001, so that the air in the air storage cover 1001 can be squeezed. At the same time, the first one-way valve is closed and the second one-way valve is opened. At this time, the air in the air storage cover 1001 is squeezed and enters the hollow cover 902 through the hose 1004, and is blown onto the top of the slide rail 11 through the blowing hole 903. Therefore, before clamping the rail, the top of the slide rail 11 can be automatically blown and cleaned, so that the effect of clamping the rail is better, safer and more reliable.

[0054] Furthermore, when clamping the rail, when the second movable plate 17 moves downward, it drives the first indicator plate 701 to move downward synchronously. At this time, the first scale mark 702 indicated by the first pointer 703 is detected by the first visual sensor 705 to determine whether the clamping block 16 is completely in contact with the top of the slide rail 11. Moreover, when the third movable plate 18 moves downward, it drives the second indicator plate 801 to move downward synchronously. When the clamping block 16 abuts against the top of the slide rail 11, the second scale mark 802 indicated by the second pointer 803 is detected by the second visual sensor 805 to determine the compression amount of the spring 503, and then determine the squeezing force between the clamping block 16 and the top of the slide rail 11, so that the state of the clamping rail can be detected, and the effect of the clamping rail is guaranteed, which is safer and more reliable.

[0055] When the hydraulic system of the hydraulic cylinder 14 fails or the pressure is insufficient, the rotating rod 401 can be rotated by a torque wrench. The rotation of the rotating rod 401 drives the rotation of the second gear 305, thereby driving the second rack 304 to move. When the second rack 304 moves, it drives the first rack 302 to move through the connecting plate 303, and then drives the first gear 301 and the threaded rod 204 to rotate. When the threaded rod 204 rotates, it pushes the threaded tube 203 and the third moving plate 18 to continue to move downward, so that the spring 503 continues to be compressed, thereby ensuring that the extrusion force between the clamping block 16 and the top of the slide rail 11 is sufficient, ensuring the effect of clamping the rail, and being safer and more reliable.

Claims

1. A new type of automatic windproof rail clamping device for a portal crane, comprising a crane body (1) and a slide rail (11), wherein the crane body (1) comprises a base (101), and the base (101) slides on the slide rail (11), and is characterized in that: Also includes: An installation box (12), the installation box (12) being fixedly connected to a side wall of the base (101), and the inner side wall of the installation box (12) being slidably connected to a first movable plate (13), a hydraulic cylinder (14) being installed between the top of the first movable plate (13) and the top of the installation box (12), and a slide groove (15) being provided at the bottom of the installation box (12), a clamping block (16) being inserted into the slide groove (15), and a second movable plate (17) being fixedly connected to the top of the clamping block (16), and a third movable plate (18) being provided between the first movable plate (13) and the second movable plate (17); A lifting mechanism (2) for lifting and moving the third movable plate (18), the lifting mechanism (2) being arranged at the bottom of the first movable plate (13), the lifting mechanism (2) comprising a first set of rods (201) fixedly connected to the bottom of the first movable plate (13), the side wall of the first set of rods (201) being sleeved with a first sleeve (202), the lower end of the first sleeve (202) being fixed to the top of the third movable plate (18), the bottom of the first movable plate (13) being rotatably connected to a threaded rod (204), the side wall of the threaded rod (204) being threadably connected to a threaded tube (203), the lower end of the threaded tube (203) being fixed to the top of the third movable plate (18), the rotation of the threaded rod (204) being pushed by a pushing mechanism (3), the pushing mechanism (3) comprising The invention comprises a first gear (301) fixedly sleeved on the side wall of the threaded rod (204), and the bottom of the first movable plate (13) is connected to a first rack (302) via a guide mechanism (6), the guide mechanism (6) comprises two symmetrically arranged connecting blocks (601) fixedly connected to the bottom of the first movable plate (13), and the side wall of the connecting block (601) is fixedly connected to a guide rod (602), the side wall of the guide rod (602) is sleeved with a slider (603), and the slider (603) is fixed to the bottom of the first rack (302), the side wall of the first rack (302) is fixedly connected to a connecting plate (303), and the side wall of the connecting plate (303) is fixedly connected to a second rack (304), and a second gear (305) is rotatably connected to the inside of the installation box (12) via a driving mechanism (4); A telescopic mechanism (5), used for connecting the third movable plate (18) and the second movable plate (17), wherein the telescopic mechanism (5) is arranged at the bottom of the third movable plate (18); A cleaning mechanism (9), for performing air blowing cleaning on the slide rail (11), the cleaning mechanism (9) being arranged on the side wall of the clamping block (16), the cleaning mechanism (9) comprising an L-shaped plate (901) fixedly connected to the side wall of the clamping block (16), and a hollow cover (902) being fixedly connected to the bottom of the L-shaped plate (901), a side wall of the hollow cover (902) being provided with a plurality of air blowing holes (903) arranged in an array, and an air supply mechanism (10) for driving the air blowing holes (903) to perform air blowing is arranged at the bottom of the installation box (12); A first detection mechanism (7), for detecting the movement of the second movable plate (17), the first detection mechanism (7) being arranged on the top of the second movable plate (17), the first detection mechanism (7) comprising a first indicator plate (701) fixedly connected to the top of the second movable plate (17), the upper end of the first indicator plate (701) passing through the top of the installation box (12) and provided with a first scale mark (702), the top of the installation box (12) being fixedly connected with a first pointer (703) arranged in an L shape, the top of the installation box (12) being fixedly connected with a first installation plate (704), and a first visual sensor (705) being fixedly inserted into a side wall of the first installation plate (704); A second detection mechanism (8), for detecting the movement of the third movable plate (18), the second detection mechanism (8) being arranged on the top of the third movable plate (18), the second detection mechanism (8) comprising a second indicator plate (801) fixedly connected to the top of the third movable plate (18), the upper end of the second indicator plate (801) passing through the top of the installation box (12) and provided with a second scale mark (802), the top of the installation box (12) being fixedly connected with a second pointer (803) arranged in an L shape, the top of the installation box (12) being fixedly connected with a second installation plate (804), and a second visual sensor (805) being fixedly inserted into a side wall of the second installation plate (804).

2. The automatic windproof new rail clamping device for portal crane according to claim 1 is characterized in that: The driving mechanism (4) comprises a rotating rod (401) rotatably connected to the top of the installation box (12), and the second gear (305) is fixed to the lower end of the rotating rod (401), the upper end of the rotating rod (401) passes through the top of the installation box (12) and is provided with a rectangular groove (402), and the side wall of the rotating rod (401) is provided with a through hole (403).

3. The automatic windproof new rail clamping device for portal crane according to claim 1 is characterized in that: The telescopic mechanism (5) comprises two symmetrically arranged second sleeves (501) fixedly connected to the bottom of the third movable plate (18), and a second sleeve rod (502) is inserted into the second sleeve (501), the lower end of the second sleeve rod (502) is fixed to the top of the second movable plate (17), and a spring (503) is sleeved on the side wall of the second sleeve (501).

4. The automatic windproof new rail clamping device for portal crane according to claim 1 is characterized in that: The air supply mechanism (10) comprises an air storage hood (1001) fixedly connected to the bottom of the installation box (12), and a sliding plate (1002) is slidably connected inside the air storage hood (1001), the sliding plate (1002) is fixed to the bottom of the second movable plate (17), and an air intake pipe (1003) is fixedly connected to the side wall of the air storage hood (1001), a first one-way valve is arranged inside the air intake pipe (1003), and a hose (1004) is fixedly connected to the side wall of the air storage hood (1001), a second one-way valve is arranged inside the hose (1004), and the other end of the hose (1004) is fixedly inserted into the side wall of the air storage hood (1001).

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