Winding mechanism of bridge crane
By designing the bridge crane winding mechanism, the cable shrinking mechanism with different diameters is used to achieve stable braking of the goods during the start and stop stages, solving the problem of swaying and shaking caused by inertia and improving transportation safety.
Patent Information
- Application Number
- CN202510220306.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the start and stop stages, the cargo will be shaken sharply due to inertia, and it will not be able to brake in time, which poses safety hazards.
A bridge crane winding mechanism is designed, including cross beams, mobile platforms, winding mechanisms and brake mechanisms. The transmission gear and the retracting gear are driven by the motor transmission, and the wire cable connects the retracting plate and the folding rod coil. The cable shrinkage and release caused by the difference in diameter are used to control the slow movement and stability of the cargo. At the same time, the brake mechanism quickly brakes the cargo by cooperating with the brake rotor and the coil spring to prevent shaking.
It effectively reduces the swaying and shaking of goods during the start and stop stages, ensures the stability of goods during transportation, and improves transportation safety.
Smart Images
Figure CN119706602A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bridge cranes, in particular to a winding mechanism of a bridge crane. Background Art
[0002] As a means of transportation, cranes are widely used in factories, docks, construction sites, container yards, and earthquake relief fields. Cranes include gantry, bridge, beam and other types of cranes. Bridge cranes are lifting equipment that are horizontally mounted above workshops, warehouses and material yards to lift materials. Because its two ends are located on tall concrete columns or metal supports, it is shaped like a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, and can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and largest number of lifting machinery.
[0003] When a bridge crane is lifting goods, the goods will sway significantly due to inertia during the starting and stopping stages, which can easily cause safety problems. The conventional solution is to shorten the length of the steel wire cable to slow down the swaying of the goods, but this method is not only cumbersome, but also fails to brake the goods in time.
[0004] Based on this, the present invention designs a winding mechanism for a bridge crane to solve the problem that the cargo cannot be braked in time when the cargo will sway significantly due to inertia during the above-mentioned starting and stopping stages. Summary of the invention
[0005] The object of the present invention is to provide a winding mechanism for a bridge crane to solve the problem in the background technology that in the moving stage and the stopping stage, the cargo will sway to a large extent due to inertia and cannot be braked in time.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a winding mechanism of a bridge crane, comprising a crossbeam, a No. 1 mobile platform is arranged on the crossbeam, a winding mechanism is arranged on the top surface of the No. 1 mobile platform, a steel wire cable is arranged on the outer surface of the winding mechanism, a fixed folding rod is arranged on the top surface of the No. 1 mobile platform, a motor is arranged on the top surface of the No. 1 mobile platform, a motor gear is arranged on the top of the motor, a transmission gear is arranged on the side of the motor gear, a transmission rotating rod is arranged on the top of the transmission gear, and the transmission rotating rod is sleeved in the inner cavity of the fixed folding rod, a No. 2 mobile platform is arranged on both sides of the No. 1 mobile platform, a braking mechanism is arranged on the No. 2 mobile platform, and a wire drum fixing block is arranged on the bottom surface of the No. 2 mobile platform.
[0007] Preferably, a support frame is provided directly below the No. 1 mobile platform, a support wire drum is provided in the inner cavity of the support frame, a support rotating rod is provided on the bottom surface of the inner cavity of the support frame, a connecting block is provided at the bottom end of the support rotating rod, a rotating rod is provided in the inner cavity of the connecting block, a hanging plate is slidably connected to the side wall of the connecting block, the rotating rod is provided in the inner cavity of the hanging plate, a hook is provided on the bottom surface of the hanging plate, and a pull block is provided on the top surface of the hanging plate.
[0008] Preferably, a group of folding rod reels are provided on each of the two side rods of the fixed folding rod. The steel wire cable starts from the winding mechanism, is wound around the folding rod reel on the higher side rod of the fixed folding rod, and is slidingly connected to the inner cavity of the supporting reel, and then is wound around the folding rod reel on the lower side rod of the fixed folding rod and returns to the winding mechanism.
[0009] Preferably, the winding mechanism includes a supporting chassis, a rotating plate is provided on the bottom surface of the supporting chassis, a winding reel one is provided on the top surface of the rotating plate, a winding reel two is provided on the top surface of the winding reel one, a winding reel two is provided on the top surface of the winding reel two, a winding gear is provided on the top surface of the winding gear, a winding rotating rod is provided on the top surface of the winding gear, and the winding rotating rod is sleeved in the inner cavity of the fixed folding rod.
[0010] Preferably, after the steel wire cable starts from the take-up reel one, it is taken up from the take-up reel two. The diameter of the take-up reel one is larger than the diameter of the take-up reel two, so that there is a diameter difference every time the take-up mechanism rotates. The winding direction of the steel wire cable on the take-up reel one is opposite to the winding direction on the take-up reel two.
[0011] Preferably, the braking mechanism includes a shell, a brake rod is provided in the inner cavity of the shell, a rigid seat is provided at the left end of the brake rod, a movable part is provided between the rigid seat and the left side of the shell, an internal gear is provided on the left side of the shell, a left cover plate is provided on the left end face of the internal gear, a right cover plate is provided on the right end face of the shell, a coil spring is provided in the inner cavity of the right cover plate to control the automatic retraction of the steel wire cable, and the coil spring is sleeved on the outer wall of the brake rod.
[0012] Preferably, a brake drum is provided on the drum fixing block, and a steel wire cable is also provided on the brake mechanism. Cable holes are opened on the second mobile platform and the shell. The steel wire cable starts from the brake rotating rod, passes through the cable hole, is wrapped around the outer wall of the brake drum, and then passes through the pull block.
[0013] Preferably, the hooks are provided with three groups, which are equidistantly arranged on the bottom surface of the hanging plate, and the pulling blocks are provided with two groups, which are respectively located directly above the hooks on both sides, and the connecting block is located directly above the middle hook to facilitate the control of the cargo by the retracting mechanism and the braking mechanism.
[0014] Preferably, the transmission gear is respectively meshed with the reeling gear and the motor gear box to facilitate power transmission.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention utilizes the motor to transmit power to the transmission gear, and the meshing of the transmission gear with the winding gear and the motor gear provides power for the winding mechanism. The steel wire cable connects the winding drum 1, the winding drum 2, the two sets of folding rod drums and the supporting drum. Since the winding directions of the steel wire cable on the winding drum 1 and the winding drum 2 are opposite, and the diameters of the winding drum 1 and the winding drum 2 are different, when the winding mechanism rotates, due to the diameter difference, the steel wire cable will be in a contracted (released) state, so that the supporting drum moves slowly, thereby controlling the slow movement of the goods and providing a stable environment for the movement of the goods. The transmission gear and the transmission rotating rod and the winding rotating rod on the winding gear are fixed to the fixed folding rod, which can ensure the stable operation of the winding device.
[0016] 2. The present invention arranges a No. 2 mobile platform on both sides of the No. 1 mobile platform, and a braking mechanism is arranged on the No. 2 mobile platform. When the goods move steadily, the steel wire cable will drive the brake lever to rotate slowly, and the movable parts will rotate slowly under the influence of the rigid seat. When the goods shake greatly, due to the rapid stretching of the cable at one end, the brake lever will rotate rapidly, and the movable parts that are not tightly connected to the rigid seat will move outward under the influence of centrifugal force, and finally be fixed to the inner gear to prevent the rotation of the brake lever, thereby braking the goods to prevent safety problems. When the hanging plate moves downward, the steel wire cable controls the rotation of the brake lever and drives the coil spring to rotate. When the hanging plate moves upward, the tension of the coil spring will drive the brake lever to rotate in the opposite direction to retract the steel wire cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the present invention; Figure 3 It is a structural schematic diagram of the winding mechanism of the present invention; Figure 4 This is a diagram showing the structural details of the bottom part of the present invention; Figure 5 It is a schematic diagram of the internal structure of the brake mechanism of the present invention; Figure 6 It is a diagram showing some structural details of the brake mechanism of the present invention; Figure 7 This is a diagram showing some structural details of the present invention.
[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1- crossbeam, 2- mobile platform No. 1, 3- mobile platform No. 2, 4- winding mechanism, 401- winding reel No. 2, 402- winding reel No. 1, 403- supporting chassis, 404- winding gear, 405- winding rod, 406- rotating plate, 5- fixed folding rod, 6- braking mechanism, 601- housing, 602- braking rod, 603- winding spring, 604- right cover plate, 605- left cover plate, 606- Rigid seat, 607-internal gear, 608-moving parts, 7-motor, 8-motor gear, 9-transmission gear, 10-folding rod drum, 11-transmission rotating rod, 13-support frame, 14-pull block, 15-hanging plate, 16-hook, 17-connecting block, 18-steel wire cable, 19-support drum, 20-support rotating rod, 21-rotating rod, 22-drum fixing block, 24-brake drum, 25-cable hole. DETAILED DESCRIPTION
[0020] 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.
[0021] Example 1 See also Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention provides a technical solution: a winding mechanism of a bridge crane, comprising a crossbeam 1, a No. 1 mobile platform 2 is arranged on the crossbeam 1, a winding mechanism 4 is arranged on the top surface of the No. 1 mobile platform 2, a steel wire cable 18 is arranged on the outer surface of the winding mechanism 4, a fixed folding rod 5 is arranged on the top surface of the No. 1 mobile platform 2, a motor 7 is arranged on the top surface of the No. 1 mobile platform 2, a motor gear 8 is arranged on the top of the motor 7, a transmission gear 9 is arranged on the side of the motor gear 8, a transmission rotating rod 11 is arranged on the top of the transmission gear 9, and the transmission rotating rod 11 is sleeved in the inner cavity of the fixed folding rod 5, a No. 2 mobile platform 3 is arranged on both sides of the No. 1 mobile platform 2, a braking mechanism 6 is arranged on the No. 2 mobile platform 3, and a wire drum fixing block 22 is arranged on the bottom surface of the No. 2 mobile platform 3.
[0022] A support frame 13 is arranged directly below the No. 1 mobile platform 2, a support wire drum 19 is arranged in the inner cavity of the support frame 13, a support rotating rod 20 is arranged on the bottom surface of the inner cavity of the support frame 13, a connecting block 17 is arranged at the bottom end of the support rotating rod 20, a rotating rod 21 is sleeved in the inner cavity of the connecting block 17, a hanging plate 15 is slidably connected to the side wall of the connecting block 17, the rotating rod 21 is sleeved in the inner cavity of the hanging plate 15, a hook 16 is arranged on the bottom surface of the hanging plate 15, and a pull block 14 is arranged on the top surface of the hanging plate 15.
[0023] The winding mechanism 4 includes a supporting chassis 403, a rotating plate 406 is provided on the bottom surface of the supporting chassis 403, a winding reel 1 402 is provided on the top surface of the rotating plate 406, a winding reel 2 401 is provided on the top surface of the winding reel 1 402, a winding reel 2 401 is provided on the top surface of the winding reel 2 401, a winding gear 404 is provided on the top surface of the winding gear 404, and a winding rotating rod 405 is provided on the top surface of the fixed folding rod 5. The winding rotating rod 405 is sleeved in the inner cavity of the fixed folding rod 5.
[0024] A group of folding rod reels 10 are respectively arranged on the rods on both sides of the fixed folding rod 5. The steel wire cable 18 starts from the winding mechanism 4, is wound around the folding rod reel 10 on the rod on the higher side of the fixed folding rod 5, and is slidingly connected to the inner cavity of the supporting reel 19, and then is wound around the folding rod reel 10 on the rod on the lower side of the fixed folding rod 5 and returns to the winding mechanism 4.
[0025] There are three groups of hooks 16 equidistantly arranged on the bottom surface of the hanging plate 15 , two groups of pull blocks 14 are arranged, respectively located directly above the hooks 16 on both sides, and the connecting block 17 is located directly above the hook 16 in the middle.
[0026] The transmission gear 9 is meshed with the winding gear 404 and the motor gear 8 respectively.
[0027] In this embodiment, the motor 7 is started, and the motor 7 transmits power to the transmission gear 9. The meshing of the transmission gear 9 with the winding gear 404 and the motor gear 8 provides power for the winding mechanism 4 to rotate. When lifting the goods, the wire cable 18 is rotated out from the winding drum 1 402, and is retracted by the winding drum 2 401 after passing through the folding rod drum 10 and the support drum 19. Since the diameter of the winding drum 1 402 is larger than that of the winding drum 2 401, the wire cable 18 is continuously released, causing the support frame 13 to slowly descend. When the hook 16 contacts and fixes the goods, the motor 7 is started again. Due to the diameter difference between the winding drum 1 402 and the winding drum 2 401, the wire cable 18 is continuously recovered, causing the support frame 13 to slowly rise, thereby completing the transportation of the goods.
[0028] Example 2 See also Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7A mobile platform No. 1 is arranged on the crossbeam 1, a winding mechanism 4 is arranged on the top surface of the mobile platform No. 1, a steel wire cable 18 is arranged on the outer cover of the winding mechanism 4, a fixed folding rod 5 is arranged on the top surface of the mobile platform No. 1 2, a motor 7 is arranged on the top surface of the mobile platform No. 1 2, a motor gear 8 is arranged on the top of the motor 7, a transmission gear 9 is arranged on the side of the motor gear 8, a transmission rotating rod 11 is arranged on the top of the transmission gear 9, and the transmission rotating rod 11 is sleeved in the inner cavity of the fixed folding rod 5, a mobile platform No. 2 is arranged on both sides of the mobile platform No. 1 2, a braking mechanism 6 is arranged on the mobile platform No. 2, and a wire drum fixing block 22 is arranged on the bottom surface of the mobile platform No. 2 3.
[0029] The braking mechanism 6 includes a shell 601, a braking rod 602 is arranged in the inner cavity of the shell 601, a rigid seat 606 is arranged at the left end of the braking rod 602, a movable component 608 is arranged between the rigid seat 606 and the left side of the shell 601, and the movable component 608 and the rigid seat 606 are not tightly connected, an internal gear 607 is arranged on the left side of the shell 601, a left cover plate 605 is arranged on the left end face of the internal gear 607, a right cover plate 604 is arranged on the right end face of the shell 601, a coil spring 603 is arranged in the inner cavity of the right cover plate 604, and the coil spring 603 is sleeved on the outer wall of the braking rod 602.
[0030] A brake drum 24 is provided on the drum fixing block 22, and a steel wire cable 18 is also provided on the brake mechanism 6. A cable hole 25 is opened on the No. 2 mobile platform 3 and the shell 601. The steel wire cable 18 starts from the brake rotating rod 602, passes through the cable hole 25, is wound around the outer wall of the brake drum 24, and then passes through the pull block 14.
[0031] There are three groups of hooks 16 equidistantly arranged on the bottom surface of the hanging plate 15 , and two groups of pull blocks 14 , which are respectively located directly above the hooks 16 on both sides, and the connecting block 17 is located directly above the hook 16 in the middle.
[0032] In this embodiment, when the cargo shakes greatly, the pull block 14 at one end moves downward rapidly, and the steel cable 18 is pulled by the pull block 14 and quickly pulled out from the brake mechanism 6, driving the brake rotating rod 602 to rotate rapidly. Since the movable part 608 follows the rapid rotation of the brake rotating rod 602 to generate a large centrifugal force, the movable part 608 slides with the rigid seat 606, and finally causes the movable part 608 to engage and mesh with the internal gear 607 to be fixed, thereby stopping the rapid rotation of the brake rotating rod 602, thereby completing the prevention of the large shaking of the cargo. When the pull block 14 moves downward, the pull block 14 pulls the steel cable 18, and the steel cable 18 is released from the brake rotating rod 602, passes through the cable hole 25 and connects with the brake wire drum 24, and is finally pulled out by the pull block 14. At this time, the coil spring 603 rotates with the brake rotating rod 602. When the pull block 14 moves upward, the tension of the coil spring 603 controls the rotation of the brake rotating rod 602 to retract the steel cable 18.
[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0034] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A winding mechanism of a bridge crane, comprising a crossbeam (1), characterized in that: A first movable platform (2) is arranged on the crossbeam (1), a reeling mechanism (4) is arranged on the top surface of the first movable platform (2), a steel wire cable (18) is arranged on the outer surface of the reeling mechanism (4), a fixed folding rod (5) is arranged on the top surface of the first movable platform (2), a motor (7) is arranged on the top surface of the first movable platform (2), a motor gear (8) is arranged on the top of the motor (7), a transmission gear (9) is arranged on the side of the motor gear (8), a transmission rotating rod (11) is arranged on the top of the transmission gear (9), and the transmission rotating rod (11) is sleeved in the inner cavity of the fixed folding rod (5), a second movable platform (3) is arranged on both sides of the first movable platform (2), a braking mechanism (6) is arranged on the second movable platform (3), and a wire drum fixing block (22) is arranged on the bottom surface of the second movable platform (3).
2. A bridge crane winding mechanism according to claim 1, characterized in that: A support frame (13) is arranged directly below the first mobile platform (2), a support wire drum (19) is arranged in the inner cavity of the support frame (13), a support rotating rod (20) is arranged on the bottom surface of the inner cavity of the support frame (13), a connecting block (17) is arranged at the bottom end of the supporting rotating rod (20), a rotating rod (21) is sleeved in the inner cavity of the connecting block (17), a hanging plate (15) is slidably connected to the side wall of the connecting block (17), the rotating rod (21) is sleeved in the inner cavity of the hanging plate (15), a hanging hook (16) is arranged on the bottom surface of the hanging plate (15), and a pulling block (14) is arranged on the top surface of the hanging plate (15).
3. A winding mechanism for a bridge crane according to claim 2, characterized in that: A group of folding rod reels (10) are respectively arranged on the two side rods of the fixed folding rod (5). The steel wire cable (18) starts from the winding mechanism (4), is wound around the folding rod reel (10) on the higher side rod of the fixed folding rod (5), is slidably connected with the inner cavity of the supporting reel (19), is then wound around the folding rod reel (10) on the lower side rod of the fixed folding rod (5), and is returned to the winding mechanism (4).
4. A winding mechanism for a bridge crane according to claim 3, characterized in that: The winding mechanism (4) comprises a supporting chassis (403), a rotating plate (406) being arranged on the bottom surface of the supporting chassis (403), a winding reel 1 (402) being arranged on the top surface of the rotating plate (406), a winding reel 2 (401) being arranged on the top surface of the winding reel 1 (402), a winding gear (404) being arranged on the top surface of the winding reel 2 (401), a winding rotating rod (405) being arranged on the top surface of the winding gear (404), and the winding rotating rod (405) being sleeved in the inner cavity of the fixed folding rod (5).
5. A bridge crane winding mechanism according to claim 4, characterized in that: The steel wire cable (18) is started from the second winding reel (401) and then retracted from the first winding reel (402). The diameter of the second winding reel (401) is larger than the diameter of the first winding reel (402). The winding direction of the steel wire cable (18) on the first winding reel (402) is opposite to the winding direction on the second winding reel (401).
6. The winding mechanism of a bridge crane according to claim 1, characterized in that: The brake mechanism (6) comprises a shell (601), the inner cavity of the shell (601) is provided with a brake rotating rod (602), the left end of the brake rotating rod (602) is provided with a rigid seat (606), a movable component (608) is provided between the rigid seat (606) and the left side of the shell (601), and the movable component (608) and the rigid seat (606) are not tightly connected, the left side of the shell (601) is provided with an internal gear (607), the left end face of the internal gear (607) is provided with a left cover plate (605), the right end face of the shell (601) is provided with a right cover plate (604), the inner cavity of the right cover plate (604) is provided with a coil spring (603), and the coil spring (603) is sleeved on the outer wall of the brake rotating rod (602).
7. A bridge crane winding mechanism according to claim 6, characterized in that: A brake wire drum (24) is arranged on the wire drum fixing block (22), a steel wire cable (18) is also arranged on the brake mechanism (6), a cable hole (25) is opened on the second mobile platform (3) and the housing (601), and the steel wire cable (18) starts from the brake rotating rod (602), passes through the cable hole (25), is wound around the outer wall of the brake wire drum (24), and then passes through the pull block (14).
8. The winding mechanism of a bridge crane according to claim 2, characterized in that: The hooks (16) are provided in three groups and are equidistantly arranged on the bottom surface of the hanging plate (15); the pull blocks (14) are provided in two groups and are respectively located directly above the hooks (16) on both sides; and the connecting block (17) is located directly above the hook (16) in the middle.
9. The winding mechanism of a bridge crane according to claim 4, characterized in that: The transmission gear (9) is meshed with the reeling gear (404) and the motor gear (8) respectively.
Citation Information
Patent Citations
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