Crane with anti-collision buffer structure

Abstract

The utility model discloses a crane with an anti-collision buffer structure, which comprises a crane main beam, a crane trolley is arranged on the crane main beam, a lifting hook is connected below the crane trolley through a traction rope, side plates are fixed at two ends of the top of the crane main beam, and two sides of the crane trolley are connected with protective plates through a plurality of hydraulic rods. And rubber plates are fixed on the outer sides of the two protection plates. The side plates are matched with the anti-collision assemblies on the two sides of the crane trolley body, the rubber plates firstly collide with the side plates to buffer part of inertia acting force, the protection plates move towards one side to extrude the hydraulic rods, the rest inertia acting force is buffered through the hydraulic rods, the trolley is protected, and when the lifting hook is folded upwards, the rubber sleeve at the top end of the lifting hook firstly collides with the top beam, so that the lifting hook is prevented from being damaged. Meanwhile, the rubber sleeve deforms to downwards extrude the telescopic rod, and the spring in the telescopic rod absorbs kinetic energy and buffers pressure, so that the lifting hook is further buffered and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane with an anti-collision buffer structure. Background Art

[0002] A crane is a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. A bridge crane is a large type of crane. It is a lifting device that is horizontally mounted above a workshop, warehouse, or material yard to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it looks like a bridge. The bridge of a bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, making full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machine.

[0003] The trolley of the bridge crane is set on the main beam of the crane, and a hook is set under the trolley. The trolley moves on the main beam of the crane to lift the object. The trolley has a large weight. Due to the effect of inertia, it will continue to slide forward after the trolley is braked, which is easy to hit the end beam, causing damage to the trolley and the main beam. At the same time, when the hook is retracted upward, the lifting motor will still rotate under the action of inertia, causing the hook to hit the main beam upward, causing damage to the hook and the main beam. Utility Model Content

[0004] The purpose of the utility model is to provide a crane with an anti-collision buffer structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A crane with an anti-collision buffer structure comprises a crane main beam, a crane trolley is provided on the crane main beam, a hook is connected to the bottom of the crane trolley through a traction rope, side panels are fixed to both ends of the top of the crane main beam, protective plates are connected to both sides of the crane trolley through a plurality of hydraulic rods, and rubber plates are fixed to the outer sides of the two protective plates, the hook comprises two mounting plates arranged opposite to each other, a hook is fixed to the bottom between the two mounting plates, and collision protection components are provided on the tops of the two mounting plates.

[0007] As a further solution of the utility model: the collision protection assembly includes a fixed block, which is fixedly connected to the mounting plate, and a slot is provided on the top of the fixed block, in which multiple telescopic rods are installed, and a return spring is fixed inside the multiple telescopic rods, and a sealing plate is fixed at the top opening of the slot, one end of the multiple telescopic rods passes through the sealing plate and a rubber sleeve is fixed to the top of the multiple telescopic rods, and the rubber sleeve is sleeved and fixed on the top of the fixed block.

[0008] As a further solution of the utility model: the crane main beam is a frame structure that penetrates from top to bottom and has elevated rails fixed on both sides inside it, the wheels on both sides of the bottom of the crane trolley are respectively rollingly set on the elevated rails on the corresponding side, and buffer slopes are set at both ends of the two elevated rails.

[0009] As a further solution of the utility model: guide grooves are provided on both the front and rear sides of the top of the crane main beam, and guide blocks are fixed on one side of the bottom of the crane trolley corresponding to the two guide grooves, and the two guide blocks are respectively slidably connected in the guide grooves on the corresponding side.

[0010] As a further solution of the utility model: the outsides of the plurality of hydraulic rods are sleeved with return springs, and the two ends of the return springs are respectively fixedly connected to the crane trolley and the protective plate.

[0011] As a further solution of the utility model: pulleys are rotatably connected to both sides of the top between the two mounting plates, and the traction ropes are wound around the two pulleys.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. In the utility model, the side plates cooperate with the anti-collision components on both sides of the crane trolley body. When the trolley reaches one end of the main beam, it will still move forward for a distance under the action of inertia. At this time, the rubber plate first hits the side plate to buffer part of the inertial force. The rubber plate moves to one side and drives the protective plate to move to one side and squeeze the hydraulic rod. The hydraulic rod buffers the remaining inertial force, thereby providing buffer protection for the trolley body.

[0014] 2. In the utility model, when the trolley runs to one end of the main beam, it will still move forward a short distance under the action of inertia. At this time, the wheels of the trolley will roll onto the buffer slope. Under the influence of its own gravity, the buffer slope will cause the trolley to move backward, offsetting the kinetic energy of the trolley itself, slowing down the trolley, and thus further providing buffer protection for the trolley;

[0015] 3. In the utility model, when the hook is retracted upward, the lifting motor will still rotate under the action of inertia, causing the hook to hit the main beam. At this time, the rubber sleeve at the top of the hook first hits the top beam. The rubber sleeve is relatively soft, so that the impact point will not be worn, protecting the main beam and the hook. At the same time, the rubber sleeve deforms and squeezes the telescopic rod downward. The spring inside the telescopic rod absorbs kinetic energy and buffers the pressure, further buffering and protecting the hook. When the hook is not squeezed, the spring resets, driving the telescopic rod and the rubber sleeve to reset;

[0016] 4. In the utility model, the movement of the trolley is limited by the cooperation of the guide groove and the guide blocks on both sides of the bottom of the trolley, so that the trolley can move more smoothly and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is an enlarged view of point A in the utility model.

[0020] Figure 3 It is a structural schematic diagram of the lifting hook in the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the collision protection component in the hook.

[0022] Notes on figure numbers: 1-crane main beam, 2-crane trolley, 3-hook, 31-mounting plate, 32-hook, 33-pulley, 34-collision protection assembly, 341-fixed block, 342-telescopic rod, 343-sealing plate, 344-rubber sleeve, 345-slot, 4-traction rope, 5-side plate, 6-guide groove, 7-elevated rail, 8-buffer slope, 9-rubber plate, 10-protective plate, 11-hydraulic rod, 12-reset spring. DETAILED DESCRIPTION

[0023] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0024] Example 1

[0025] See also Figures 1-2In the embodiment of the utility model, a crane with an anti-collision buffer structure includes a crane main beam 1, a crane trolley 2 is arranged on the crane main beam 1, a hook 3 is connected to the bottom of the crane trolley 2 through a traction rope 4, both sides of the crane trolley 2 are connected with a protective plate 10 through a plurality of hydraulic rods 11, and the outer sides of the protective plates 10 are fixed with rubber plates 9, the outer sides of the plurality of hydraulic rods 11 are sleeved with a return spring 12, and the two ends of the return spring 12 are respectively fixedly connected to the crane trolley 2 and the protective plate 10, and the two ends of the top of the crane main beam 1 are fixed with side plates 5, and the side plates 5 are used in conjunction with the anti-collision components on both sides of the crane trolley 2 body. When the trolley reaches one end of the main beam, the trolley will still move forward for a distance under the action of inertia. At this time, the rubber plate 9 first hits the side plate 5 to buffer part of the inertial force. The translation of the rubber plate to one side will drive the protective plate 10 to move to one side and squeeze the hydraulic rod 11, and the remaining inertial force is buffered by the hydraulic rod 11, thereby buffering the trolley body.

[0026] The crane main beam 1 is a frame structure that runs through from top to bottom and has elevated tracks 7 fixed on both sides of the interior thereof. The wheels on both sides of the bottom of the crane trolley 2 are respectively set to roll on the elevated tracks 7 on the corresponding side. Buffer slopes 8 are set at both ends of the two elevated tracks 7. When the trolley runs to one end of the main beam, it will still move forward a short distance under the action of inertia. At this time, the wheels of the trolley will roll onto the buffer slope 8. Under the influence of its own gravity, the buffer slope will cause the trolley to move backward, offsetting the kinetic energy of the trolley itself, slowing down the trolley, and further providing buffer protection for the trolley.

[0027] Guide grooves 6 are provided on both the front and rear sides of the top of the crane main beam 1. Guide blocks are fixed on one side of the bottom of the crane trolley 2 corresponding to the two guide grooves 6, and the two guide blocks are respectively slidably connected in the guide grooves 6 on the corresponding side. The guide grooves and guide blocks are used in conjunction with each other to limit the movement of the trolley, so that it can be smoother and more stable when moving.

[0028] Example 2

[0029] See also Figures 3-4 On the basis of Example 1, the hook 3 includes two mounting plates 31 arranged opposite to each other, a hook 32 is fixed at the bottom between the two mounting plates 31, pulleys 33 are rotatably connected on both sides of the top between the two mounting plates 31, and traction ropes 4 are wound around the two pulleys 33, and collision protection components 34 are arranged at the tops of the two mounting plates 31;

[0030] The collision protection assembly 34 includes a fixed block 341, which is fixedly connected to the mounting plate 31. A slot 345 is provided on the top of the fixed block 341. A plurality of telescopic rods 342 are installed in the slot 345. Return springs are fixed inside the plurality of telescopic rods 342. A sealing plate 343 is fixed at the top opening of the slot 345. One ends of the plurality of telescopic rods 342 pass through the sealing plate 343. Rubber sleeves 344 are fixed to the tops of the plurality of telescopic rods 342. The rubber sleeves 344 are sleeved and fixed on the top of the fixed block 341.

[0031] When the hook 3 is retracted upward, the lifting motor will still rotate under the action of inertia, causing the hook to hit the main beam. At this time, the rubber sleeve 344 at the top of the hook 3 first hits the top beam. The rubber sleeve is relatively soft, so that the impact point will not be worn, thereby protecting the main beam and the hook. At the same time, the rubber sleeve deforms and squeezes the telescopic rod 342 downward. The spring inside the telescopic rod 342 absorbs kinetic energy and buffers the pressure, thereby further buffering and protecting the hook. When the hook is not squeezed, the spring resets, driving the telescopic rod and the rubber sleeve to reset.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crane with an anti-collision buffer structure, comprising a crane main beam (1), a crane trolley (2) being arranged on the crane main beam (1), a hook (3) being connected to the bottom of the crane trolley (2) via a traction rope (4), characterized in that: Side plates (5) are fixed at both ends of the top of the crane main beam (1), protective plates (10) are connected to both sides of the crane trolley (2) through multiple hydraulic rods (11), and rubber plates (9) are fixed to the outer sides of the two protective plates (10), and the hook (3) includes two mounting plates (31) arranged opposite to each other, a hook (32) is fixed at the bottom between the two mounting plates (31), and collision protection components (34) are arranged at the top ends of the two mounting plates (31).

2. The crane with an anti-collision buffer structure according to claim 1, characterized in that: The collision protection assembly (34) comprises a fixed block (341), wherein the fixed block (341) is fixedly connected to the mounting plate (31), a slot (345) is arranged at the top of the fixed block (341), a plurality of telescopic rods (342) are installed in the slot (345), a return spring is fixed inside the plurality of telescopic rods (342), a sealing plate (343) is fixed at the top opening of the slot (345), one end of the plurality of telescopic rods (342) passes through the sealing plate (343), and a rubber sleeve (344) is fixed at the top of the plurality of telescopic rods (342), and the rubber sleeve (344) is sleeved and fixed on the top of the fixed block (341).

3. The crane with an anti-collision buffer structure according to claim 2, characterized in that: The crane main beam (1) is a frame structure that penetrates from top to bottom and has elevated rails (7) fixed on both sides of the structure. The wheels on both sides of the bottom of the crane trolley (2) are respectively rollingly arranged on the elevated rails (7) on the corresponding side. Buffer slopes (8) are arranged at both ends of the two elevated rails (7).

4. The crane with an anti-collision buffer structure according to claim 1 or 3, characterized in that: Guide grooves (6) are provided on both the front and rear sides of the top of the crane main beam (1), and guide blocks are fixed on one side of the bottom of the crane trolley (2) corresponding to the two guide grooves (6), and the two guide blocks are respectively slidably connected in the guide grooves (6) on the corresponding side.

5. The crane with an anti-collision buffer structure according to claim 1, characterized in that: The exteriors of the plurality of hydraulic rods (11) are all sleeved with return springs (12), and the two ends of the return springs (12) are respectively fixedly connected to the crane trolley (2) and the protective plate (10).

6. The crane with an anti-collision buffer structure according to claim 1, characterized in that: Pulleys (33) are rotatably connected to both sides of the top between the two mounting plates (31), and the traction ropes (4) are wound around the two pulleys (33).

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