Active wind-resistant anchoring device for portal crane

Abstract

The active wind-resistant anchoring device for the portal crane comprises an anchoring mechanism arranged on one side of a supporting leg of a portal crane body and an edge groove formed in one side of a ground rail, an anchor receiving vehicle capable of moving in the length direction of the edge groove is arranged in the edge groove, a locking rod mechanism is arranged on the anchor receiving vehicle, and the locking rod mechanism comprises a clamping assembly. The anchoring mechanism is provided with a liftable anchoring rod, the anchoring rod is inserted into the clamping assembly, one end of each edge groove is provided with a second target, the anchor connecting vehicle is provided with a second distance sensor, the second distance sensor faces the second targets, one end of the ground rail is provided with a first target, and the portal crane body is provided with a first distance sensor. And the first distance sensor faces the first target, so that the outdoor portal crane can be quickly and stably fixed in windy weather.

Description

Technical Field

[0001] The present invention relates to the field of wind protection for cranes, and in particular to an active wind-resistant anchoring device for gantry cranes. Background Art

[0002] Gantry cranes are generally stabilized on the ground walking track by their own weight. When used outdoors, gantry cranes may be blown or even overturned in windy weather due to their large windward surface and high center of gravity.

[0003] Traditional gantry cranes generally adopt anchoring or center-of-gravity lowering solutions for wind resistance. The center-of-gravity lowering solution generally installs a lifting mechanism on the crane frame. When strong winds come, the lifting mechanism lowers, lowering the overall center of gravity of the gantry crane. This solution is feasible in theory, but due to the large weight of the crane and the load, the lifting mechanism needs to meet the requirements of huge structural strength. In addition, the large mass mechanism has high inertia, which places a heavy burden on the drive mechanism during lifting and lowering operations. Therefore, slow acceleration and deceleration are required. This solution is not very effective in sudden and violent storms.

[0004] Another solution is to rely on self-provided windproof iron wedges for fixation. This solution also requires the installation of guy ropes on both sides of the door legs for anchoring. During the operation, there are disadvantages such as high labor intensity for workers, long installation time, and slow emergency response to sudden extreme weather. Summary of the Invention

[0005] The present invention provides an active wind-resistant anchoring device for a gantry crane, which solves the problem of rapid and stable fixing of an open-air gantry crane in windy weather.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an active wind-resistant anchoring device for a gantry crane, comprising an anchoring mechanism arranged on one side of the support leg of the gantry crane body and a side groove arranged on one side of the ground rail, an anchor receiving vehicle that can move along the length direction of the side groove is provided in the side groove, the anchor receiving vehicle is provided with a locking rod mechanism, the locking rod mechanism includes a clamping assembly, the anchoring mechanism is provided with a liftable anchor rod, the anchor rod is inserted into the clamping assembly, a second target is provided at one end of each side groove, a second distance sensor is provided on the anchor receiving vehicle, the second distance sensor is facing the second target, a first target is provided at one end of the ground rail, and a first distance sensor is provided on the gantry crane body, the first distance sensor is facing the first target.

[0007] In the preferred solution, a U-shaped linear guide is provided in the side groove, a rack track is provided at the lower inner end of the linear guide, a plurality of rotatable traveling gears are provided at both ends of the anchor receiving vehicle, the traveling gears are engaged with the rack track, a flexible contact strip is provided at the upper inner end of the linear guide, and a gap is provided between the contact strip and the upper end of the traveling gear.

[0008] In the preferred solution, multiple overhanging sleeves are provided at both ends of the anchor handling vehicle, the traveling gear is rotatably connected to the overhanging sleeve, the rotating shaft passes through the overhanging sleeve, the end of the rotating shaft is provided with a transmission tooth, the traveling gear is provided with an internal tooth portion, the transmission teeth are meshed with the internal tooth portion, and a gap is provided between the meshing teeth of the transmission teeth and the internal tooth portion.

[0009] In the preferred solution, the anchor handling vehicle is provided with an anchor handling vehicle drive motor and a rotatable transmission shaft, a spur gear transmission group is provided between the shaft end of the anchor handling vehicle drive motor and the transmission shaft, and a bevel gear transmission group is connected to the rotating shaft at both ends of the transmission shaft.

[0010] In the preferred solution, the clamping assembly includes a positioning seat sleeve, the positioning seat sleeve includes a socket, the side wall of the socket is provided with multiple sliding grooves, the sliding grooves are provided with locking tongues, and the lower end of the anchor rod is provided with an annular groove, the locking tongue slides along the sliding groove and is clamped into the annular groove to fix the anchor rod.

[0011] In the preferred solution, an outer conical surface is provided at the lower end of the anchor rod, and a slope surface is provided on the inner side of the positioning seat sleeve. The outer conical surface squeezes the slope surface to make the lock tongue slide outward, and stop parts are also provided at both ends of the lock tongue. Blind grooves are provided at both ends of the slide groove, and a spring is provided in each blind groove. A baffle is provided at one end of the blind groove opening, and the two ends of the spring respectively abut against the stop part and the baffle. The blind groove pushes the lock tongue to slide inward to insert into the annular groove, and a stop conical surface is provided at the lower end of the positioning seat sleeve, and the stop conical surface is used to abut against the outer conical surface.

[0012] In the preferred solution, a lifting sleeve with a threaded connection is provided on the outer side of the positioning seat sleeve, a pressure ring is provided on the upper end of the lifting sleeve, and a reverse bevel is provided on the outer side of the lock tongue. The lifting sleeve rotates to make the pressure ring squeeze the reverse bevel, and the reverse bevel slides out of the annular groove.

[0013] In the preferred solution, a driving shaft is further provided in the middle of the bottom connecting seat, a driving gear is provided at the upper end of the driving shaft, a plurality of locking rod mechanisms are provided on the outside of the driving shaft, a plurality of anchoring rods are provided at the lower end of the anchoring mechanism, each anchoring rod is aligned with the socket of each locking rod mechanism, a plurality of lifting seats are provided on the bottom connecting seat, each lifting seat is connected to the lower end of each positioning seat sleeve, an outer gear ring is provided on the outer side of the lifting sleeve, and each outer gear ring is engaged with the driving gear.

[0014] In a preferred embodiment, a plurality of end stops are provided along the circumferential direction of the inner wall of the lifting sleeve, and hollow grooves are provided between adjacent end stops. The lifting sleeve rotates to move the end stops to the end of the slide groove close to the outer wall of the positioning seat sleeve.

[0015] In the preferred solution, the anchoring mechanism includes a base, which is connected to the legs of the gantry crane body. A rotatable rotating sleeve is provided in the base, and a spiral screw is provided in the rotating sleeve. A bottom connecting plate is provided at the lower end of the spiral screw, and the bottom connecting plate is also provided with a guide rod. The guide rod is slidably connected to the base, and the anchor rod is provided at the lower end of the bottom connecting plate.

[0016] The beneficial effects of the present invention are as follows: an insertable anchor rod is installed on the gantry crane leg, and a movable anchor receiving vehicle is arranged in the ground groove. The anchor receiving vehicle adopts gears as traveling wheels and can actively move to the bottom of the anchor rod. The anchor rod is inserted into the locking rod mechanism to fix the crane legs and is not affected by strong winds; the anchor receiving vehicle is provided with an overhanging sleeve as a load-bearing device for the traveling gear to protect the driving mechanism; a multi-point positioning structure is adopted, and a spring-loaded lock tongue is used to automatically lock the anchor rod without the need for coordination of other driving structures, thereby reducing the risk of mechanism interference; the lifting and lowering sleeves that are spirally sleeved with the positioning seat sleeves are used to cooperatively control the loosening of each lock tongue, and a single motor can synchronously control the unlocking of the lock tongue, and the motor reversal can cooperatively limit the lock tongue, thereby reducing the control difficulty and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Figure 1 This is a top-down view of the crane layout.

[0019] Figure 2 This is a side view of the crane layout.

[0020] Figure 3 This is the connection diagram between the locking rod mechanism and the anchor truck.

[0021] Figure 4 This is the internal drive transmission structure diagram of the anchor handling vehicle.

[0022] Figure 5 This is the drive protection structure diagram of the anchor truck.

[0023] Figure 6 This is the travel gear installation diagram.

[0024] Figure 7 This is the schematic diagram of the crane position detection principle.

[0025] Figure 8 This is an enlarged view of the support leg anchoring mechanism.

[0026] Figure 9 It is a schematic diagram of the docking between the anchoring mechanism and the locking rod mechanism.

[0027] Figure 10 This is an exploded view of the clamp assembly.

[0028] Figure 11 It is a schematic diagram of the lifting and rotating sleeve in the middle position.

[0029] Figure 12 It is a schematic diagram of the upper position of the lifting and rotating sleeve.

[0030] Figure 13 This is a schematic diagram of the lower position of the lifting and rotating sleeve.

[0031] Figure 14 This is a structural diagram of the positioning seat cover.

[0032] Figure 15 It is a diagram of the lock tongue structure.

[0033] In the figure: gantry crane body 1; ground rail 101; traveling wheel mechanism 102; main beam 103; outrigger 104; mobile overhead crane 105; winch 106; hook assembly 107; anchor mechanism 2; base 201; rotating sleeve 202; screw rod 203; bottom connecting plate 204; guide rod 205; stepped countersunk hole 206; annular block 207; large diameter end 208; limiting section 209; lower insertion motor 210; gear transmission mechanism 211; locking rod mechanism 3; bottom connecting base 301; driving gear 302; outer gear ring 303; lifting base 304; driving shaft 305; unlocking motor 306; side groove 4; anchor receiving vehicle 401; traveling gear 402; rack rail 403; contact bar 404; rotating shaft 405; linear guide 406; Outer sleeve 407; transmission tooth 408; internal gear portion 409; latch block 410; anchor truck drive motor 411; spur gear transmission group 412; transmission shaft 413; bevel gear transmission group 414; abutment roller 415; clamping assembly 5; anchor rod 6; annular groove 601; outer conical surface 602; positioning seat sleeve 7; locking tongue 701; slide groove portion 702; insertion hole 703; slope surface 704; stop portion 705; blind groove 706; spring 707; baffle 708; stop conical surface 709; reverse slope 710; lifting sleeve 8; end stop portion 801; hollow cut groove portion 802; pressure ring 9; lifting connecting rod 10; first distance sensor 11; first target 12; anemometer 13; wind vane 14; control cabinet 15; second distance sensor 16; second target 17. DETAILED DESCRIPTION

[0034] like Figure 1-15 In the invention, a gantry crane includes a gantry crane body 1, the gantry crane body 1 includes a gantry, the gantry includes a main beam 103 and support legs 104 at both ends, a mobile overhead crane 105 is provided on the main beam 103, and a winch 106 and a hook assembly 107 are provided on the mobile overhead crane 105.

[0035] An electrically driven walking wheel mechanism 102 is provided at the lower end of the support leg 104 of the gantry crane body 1, which can be driven to move forward along the ground rail 101.

[0036] An anemometer 13 , a wind vane 14 and a control cabinet 15 are installed on or near the gantry crane body 1 .

[0037] If a fixed locking rod mechanism 3 is used within the side groove 4, the gantry crane body 1 will be randomly positioned during sudden gusts of wind. To quickly secure the gantry crane body 1, as many locking rod mechanisms 3 as possible must be deployed. The gantry crane body 1 must be moved to the nearest locking rod mechanism 3, the anchor rod 6 lowered, and inserted into the clamping assembly 5. The clamping assembly 5 then clamps the anchor rod 6 tightly, securing each leg 104 of the gantry crane body 1. The denser the arrangement of the locking rod mechanisms 3, the better the wind resistance of the gantry crane body 1 and the higher the safety factor, but this also increases the hardware and maintenance costs. Furthermore, in strong winds, when the wind direction coincides with the ground rail 101, it may be difficult for the gantry crane body 1 to move or brake to a predetermined position.

[0038] Therefore, there is an urgent need for an active wind-resistant anchoring device for a gantry crane, comprising an anchoring mechanism 2 arranged on one side of the support leg 104 of the gantry crane body 1 and a side groove 4 arranged on one side of the ground rail 101, an anchor receiving vehicle 401 movable along the length direction of the side groove 4 is provided in the side groove 4, a locking rod mechanism 3 is provided on the anchor receiving vehicle 401, the locking rod mechanism 3 includes a clamping assembly 5, the anchoring mechanism 2 is provided with a liftable anchor rod 6, the anchor rod 6 is inserted into the clamping assembly 5, a second target 17 is provided at one end of each side groove 4, a second distance sensor 16 is provided on the anchor receiving vehicle 401, the second distance sensor 16 is facing the second target 17, a first target 12 is provided at one end of the ground rail 101, and a first distance sensor 11 is provided on the gantry crane body 1, the first distance sensor 11 is facing the first target 12.

[0039] The second distance sensor 16 and the first distance sensor 11 respectively detect the positions of the locking rod mechanism 3 and the gantry crane body 1 to ensure that the clamping assembly 5 can be dynamically aligned with the anchor rod 6.

[0040] In the preferred embodiment, a U-shaped linear guide 406 is provided in the side groove 4, a rack track 403 is provided at the lower inner end of the linear guide 406, a plurality of rotatable traveling gears 402 are provided at both ends of the anchor receiving vehicle 401, the traveling gears 402 are engaged with the rack track 403, a flexible contact strip 404 is provided at the upper inner end of the linear guide 406, and a gap is provided between the contact strip 404 and the upper end of the traveling gear 402.

[0041] One end of the linear guide 406 is open, and the open end is arranged toward the inside.

[0042] The gap between the contact strip 404 and the travel gear 402 is less than the tooth height of the rack rail 403. When the clamp assembly 5 and the anchor rod 6 are connected and locked, the gantry crane body 1 will tend to tilt as a whole when the wind blows. At this time, the travel gear 402 will lose contact with the rack rail 403, but it will still be stuck in the teeth. Because the contact strip 404 is made of a flexible material such as rubber, the teeth on the upper end of the travel gear 402 contact and sink into the contact strip 404, which not only protects the teeth from being damaged by the pulling force of the gantry crane body 1, but also provides sufficient friction to prevent the gantry crane body 1 from moving along the ground rail 101, protecting the drive motor of the travel wheel mechanism 102.

[0043] In the preferred solution, multiple protruding sleeves 407 are provided at both ends of the anchor receiving vehicle 401, the traveling gear 402 is rotatably connected to the protruding sleeve 407, the rotating shaft 405 passes through the protruding sleeve 407, and the end of the rotating shaft 405 is provided with a transmission tooth 408, the traveling gear 402 is provided with an internal tooth portion 409, the transmission tooth 408 is meshed with the internal tooth portion 409, and a gap is provided between the meshing teeth of the transmission tooth 408 and the internal tooth portion 409.

[0044] A ceramic sliding bushing can be provided inside the extending sleeve 407 as a bearing, which is slidably connected to the rotating shaft 405 .

[0045] An annular groove is provided on the outer wall of the extension sleeve 407. A bayonet block 410 is provided in the travel gear 402 and is engaged in the annular groove but not inserted into the bottom end, thereby ensuring that the travel gear 402 will not fall out of the extension sleeve 407 but can rotate freely.

[0046] The extended sleeve 407 serves as the supporting structure of the traveling gear 402, and bears the pulling force caused by the deflection tendency of the gantry crane body 1. Since there is a small gap between the meshing teeth of the transmission teeth 408 and the internal teeth 409, the pulling force will not directly act on the rotating shaft 405, thereby protecting the driving mechanism.

[0047] In the preferred solution, the anchor trolley 401 is provided with an anchor trolley drive motor 411 and a rotatable transmission shaft 413, a spur gear transmission group 412 is provided between the shaft end of the anchor trolley drive motor 411 and the transmission shaft 413, and a bevel gear transmission group 414 is connected to the rotating shaft 405 at both ends of the transmission shaft 413.

[0048] A single anchor handling vehicle driving motor 411 can drive four traveling gears 402 to rotate synchronously, making traction more reliable.

[0049] Abutment rollers 415 are further provided on both sides of the anchor handling vehicle 401 . The abutment rollers 415 roll against the linear guide 406 to prevent the anchor handling vehicle 401 from moving laterally.

[0050] In the preferred embodiment, the clamping assembly 5 includes a positioning seat sleeve 7, the positioning seat sleeve 7 includes a socket 703, the side wall of the socket 703 is provided with multiple sliding grooves 702, the sliding grooves 702 are provided with locking tongues 701, and the lower end of the anchor rod 6 is provided with an annular groove 601, the locking tongue 701 slides along the sliding groove 702 and is clamped into the annular groove 601 to fix the anchor rod 6.

[0051] In the preferred solution, an outer conical surface 602 is provided at the lower end of the anchor rod 6, and a sloped surface 704 is provided on the inner side of the positioning sleeve 7. The outer conical surface 602 squeezes the sloped surface 704 to make the lock tongue 701 slide outward. Stop portions 705 are also provided at both ends of the lock tongue 701. Blind grooves 706 are provided at both ends of the slide groove portion 702. A spring 707 is provided in each blind groove 706. A baffle 708 is provided at one end of the opening of the blind groove 706. The two ends of the spring 707 respectively abut against the stop portion 705 and the baffle 708. The blind groove 706 pushes the lock tongue 701 to slide inward to insert into the annular groove 601. A stop conical surface 709 is provided at the lower end of the inner portion of the positioning sleeve 7. The stop conical surface 709 is used to abut against the outer conical surface 602.

[0052] The central axis of the insertion hole 703 is the inner side of the positioning seat sleeve 7, and the side away from the central axis of the insertion hole 703 is the outer side.

[0053] Initially, the locking tongue 701 is at its innermost position due to the retaining force of the blind groove 706, and the stopper 705 abuts the blind end of the blind groove 706. When the anchor rod 6 is inserted into the insertion hole 703, the outer conical surface 602 at the front end of the annular groove 601 squeezes the sloped surface 704 of the locking tongue 701, causing the locking tongues 701 arranged along the circumference of the insertion hole 703 to move outward, expanding the passage until the anchor rod 6 can pass through. The anchor rod 6 continues to be inserted until the outer conical surface 602 abuts the stopper conical surface 709. At this time, the locking tongue 701 is inserted into the annular groove 601 under the retaining force of the blind groove 706. The contact surfaces of the locking tongue 701 and the annular groove 601 are both flat surfaces, so the anchor rod 6 cannot be dislodged in the opposite direction, and the gantry crane body 1 is immediately fixed.

[0054] In the preferred solution, a lifting sleeve 8 with a threaded connection is provided on the outer side of the positioning seat sleeve 7, a pressure ring 9 is provided on the upper end of the lifting sleeve 8, and a reverse bevel 710 is provided on the outer side of the lock tongue 701. The lifting sleeve 8 rotates to make the pressure ring 9 squeeze the reverse bevel 710, and the reverse bevel 710 slides out of the annular groove 601.

[0055] The pressure ring 9 is the unlocking mechanism and is mounted on the upper end surface of the side wall of the lifting sleeve 8 via a lifting connecting rod 10 at the lower end. The lifting connecting rod 10 is a screw, and the height of the pressure ring 9 can be adjusted by a nut. When the lifting sleeve 8 rotates, the pressure ring 9 simultaneously presses down the reverse bevel 710 of each locking tongue 701, causing the circumferential reverse bevel 710 to be pulled outward synchronously, unlocking the anchor rod 6.

[0056] In the preferred solution, a driving shaft 305 is further provided in the middle of the bottom connecting seat 301, a driving gear 302 is provided at the upper end of the driving shaft 305, a plurality of locking rod mechanisms 3 are provided on the outside of the driving shaft 305, a plurality of anchoring rods 6 are provided at the lower end of the anchoring mechanism 2, and each anchoring rod 6 is aligned with the socket 703 of each locking rod mechanism 3, a plurality of lifting seats 304 are provided on the bottom connecting seat 301, each lifting seat 304 is connected to the lower end of each positioning seat sleeve 7, an outer gear ring 303 is provided on the outer side of the lifting rotating sleeve 8, and each outer gear ring 303 is engaged with the driving gear 302.

[0057] An unlocking motor 306 is also provided on the bottom connecting seat 301. The shaft end of the unlocking motor 306 is connected to the driving shaft 305. The unlocking motor 306 is a reduction motor, which can drive multiple lifting sleeves 8 to rotate synchronously through the outer gear ring 303. Each lifting sleeve 8 rotates and descends, so that the pressure ring 9 gradually contacts the reverse slope 710 of each lock tongue 701, thereby synchronously unlocking each anchor rod 6.

[0058] In the preferred embodiment, a plurality of end stops 801 are provided along the circumferential direction on the inner wall of the lifting sleeve 8, and hollow groove portions 802 are provided between adjacent end stops 801. The lifting sleeve 8 is rotated to move the end stops 801 to the end of the slide groove portion 702 close to the outer wall of the positioning seat sleeve 7.

[0059] At the beginning, the height of the lifting sleeve 8 is in the middle position. When the unlocking motor 306 reverses, the lifting sleeve 8 rotates and rises, so that the end stop part 801 just rotates to the outer end of the slide groove part 702 to form a stop, so that the lock tongue 701 cannot move outward, preventing the risk of the lock tongue 701 escaping from the annular groove 601 due to failure of the spring 707.

[0060] When the lifting sleeve 8 is in the middle position and the low position, the end stop portion 801 will not block the end of the slide groove portion 702.

[0061] In the preferred embodiment, the anchoring mechanism 2 includes a base 201, which is connected to the support legs 104 of the gantry crane body 1. A rotatable rotating sleeve 202 is provided in the base 201, and a spiral screw 203 is provided in the rotating sleeve 202. The lower end of the spiral screw 203 is provided with a bottom connecting plate 204, and the bottom connecting plate 204 is also provided with a guide rod 205. The guide rod 205 is slidably connected to the base 201, and the anchor rod 6 is provided at the lower end of the bottom connecting plate 204.

[0062] A stepped countersunk hole 206 is provided in the base seat 201, and a threaded annular stopper 207 is provided in the stepped countersunk hole 206. A large diameter end 208 is provided at the lower end of the rotating sleeve 202, and a limiting section 209 is provided in the stepped countersunk hole 206. The large diameter end 208 is provided in the limiting section 209, and the annular stopper 207 stops the lower end of the large diameter end 208.

[0063] The upper end of the rotating sleeve 202 passes through the through hole of the base 201. The stepped countersunk hole 206 is threaded near the opening section and is equipped with an annular stopper 207. When the annular stopper 207 rotates to the innermost end, it cannot move further due to the smaller inner diameter of the limit section 209. Therefore, the annular stopper 207 does not clamp the large diameter end 208, allowing the large diameter end 208 to rotate.

[0064] A lower insert motor 210 is further provided on the base 201 . A gear transmission mechanism 211 is provided between the shaft end of the lower insert motor 210 and the rotating sleeve 202 . The lower insert motor 210 drives the rotating sleeve 202 to rotate via the gear transmission mechanism 211 .

[0065] The shaft end of the lower motor 210 and the rotating sleeve 202 are both covered with external gears, and a transition external gear is connected and meshed in the middle.

[0066] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An active wind-resistant anchoring device for a gantry crane, characterized by: The invention comprises an anchoring mechanism (2) arranged on one side of a support leg (104) of a gantry crane body (1) and a side groove (4) arranged on one side of a ground rail (101); an anchor receiving vehicle (401) movable along the length direction of the side groove (4) is arranged in the side groove (4); a locking rod mechanism (3) is arranged on the anchor receiving vehicle (401); the locking rod mechanism (3) comprises a clamping assembly (5); the anchoring mechanism (2) is provided with a liftable anchor rod (6); the anchor rod (6) is inserted into the clamping assembly (5); a second target (17) is arranged at one end of each side groove (4); a second distance sensor (16) is arranged on the anchor receiving vehicle (401); the second distance sensor (16) faces the second target (17); a first target (12) is arranged at one end of the ground rail (101); a first distance sensor (11) is arranged on the gantry crane body (1); the first distance sensor (11) faces the first target (12).

2. The active wind-resistant anchoring device for a gantry crane according to claim 1, characterized in that: A U-shaped linear guide (406) is provided in the side groove (4), a rack track (403) is provided at the inner lower end of the linear guide (406), a plurality of rotatable traveling gears (402) are provided at both ends of the anchor receiving vehicle (401), the traveling gears (402) are meshed with the rack track (403), a flexible contact strip (404) is provided at the inner upper end of the linear guide (406), and a gap is provided between the contact strip (404) and the upper end of the traveling gear (402).

3. The active wind-resistant anchoring device for a gantry crane according to claim 2 is characterized in that: A plurality of overhanging sleeves (407) are provided at both ends of the anchor vehicle (401), the traveling gear (402) is rotatably sleeved with the overhanging sleeves (407), the rotating shaft (405) passes through the overhanging sleeves (407), the end of the rotating shaft (405) is provided with a transmission tooth (408), the traveling gear (402) is provided with an internal tooth portion (409), the transmission tooth (408) is meshed with the internal tooth portion (409), and a gap is provided between the meshing teeth of the transmission tooth (408) and the internal tooth portion (409).

4. The active wind-resistant anchoring device for a gantry crane according to claim 2 is characterized in that: An anchor car driving motor (411) and a rotatable transmission shaft (413) are provided in the anchor car (401). A spur gear transmission group (412) is provided between the shaft end of the anchor car driving motor (411) and the transmission shaft (413). Both ends of the transmission shaft (413) are connected to the rotating shaft (405) with a bevel gear transmission group (414).

5. The active wind-resistant anchoring device for a gantry crane according to claim 2, characterized in that: The clamping assembly (5) includes a positioning seat cover (7), the positioning seat cover (7) includes a socket (703), a side wall of the socket (703) is provided with a plurality of slide grooves (702), a locking tongue (701) is provided in the slide grooves (702), an annular clamping groove (601) is provided at the lower end of the anchor rod (6), and the locking tongue (701) slides along the slide grooves (702) and is clamped into the annular clamping groove (601) to fix the anchor rod (6).

6. The active wind-resistant anchoring device for a gantry crane according to claim 5, characterized in that: The lower end of the anchor rod (6) is provided with an outer conical surface (602), and the inner side of the positioning seat sleeve (7) is provided with a slope surface (704). The outer conical surface (602) squeezes the slope surface (704) to make the lock tongue (701) slide outward. Stop portions (705) are also provided at both ends of the lock tongue (701). Blind grooves (706) are provided at both ends of the slide groove portion (702). A spring (707) is provided in each blind groove (706). A baffle (708) is provided at one end of the opening of the blind groove (706). The two ends of the spring (707) respectively abut against the stop portion (705) and the baffle (708). The blind groove (706) pushes the lock tongue (701) to slide inward to be inserted into the annular groove (601). A stop conical surface (709) is provided at the lower end of the positioning seat sleeve (7). The stop conical surface (709) is used to abut against the outer conical surface (602).

7. The active wind-resistant anchoring device for a gantry crane according to claim 6, characterized in that: The outer side of the positioning seat sleeve (7) is covered with a lifting sleeve (8) connected by a thread, the upper end of the lifting sleeve (8) is provided with a pressure ring (9), and the outer side of the lock tongue (701) is provided with a reverse bevel (710). The lifting sleeve (8) rotates so that the pressure ring (9) squeezes the reverse bevel (710), and the reverse bevel (710) slides out of the annular groove (601).

8. The active wind-resistant anchoring device for a gantry crane according to claim 7, characterized in that: A driving shaft (305) is further provided in the middle of the bottom connecting seat (301), a driving gear (302) is provided at the upper end of the driving shaft (305), a plurality of locking rod mechanisms (3) are provided on the outer side of the driving shaft (305), a plurality of anchoring rods (6) are provided at the lower end of the anchoring mechanism (2), each anchoring rod (6) is aligned with the socket (703) of each locking rod mechanism (3), a plurality of lifting seats (304) are provided on the bottom connecting seat (301), each lifting seat (304) is connected to the lower end of each positioning seat sleeve (7), an outer gear ring (303) is provided on the outer side of the lifting rotating sleeve (8), and each outer gear ring (303) is engaged with the driving gear (302).

9. The active wind-resistant anchoring device for a gantry crane according to claim 7, characterized in that: The inner wall of the lifting rotating sleeve (8) is provided with a plurality of end stop portions (801) along the circumferential direction, and hollow cut groove portions (802) are provided between adjacent end stop portions (801). The lifting rotating sleeve (8) is rotated to move the end stop portions (801) to the end of the slide groove portion (702) close to the outer wall of the positioning seat sleeve (7).

10. The active wind-resistant anchoring device for a gantry crane according to claim 1, characterized in that: The anchoring mechanism (2) includes a base (201), the base (201) is connected to the support leg (104) of the gantry crane body (1), a rotatable rotating sleeve (202) is provided in the base (201), a spiral screw (203) is sleeved in the rotating sleeve (202), a bottom connecting plate (204) is provided at the lower end of the spiral screw (203), the bottom connecting plate (204) is further provided with a guide rod (205), the guide rod (205) is slidably sleeved with the base (201), and an anchoring rod (6) is provided at the lower end of the bottom connecting plate (204).

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