Special hoisting device for crane

Abstract

The invention provides a special lifting device for a crane, which relates to the field of cranes, and comprises a mounting seat, a mounting assembly, an adjusting device and a lifting hook, one side of the mounting seat is connected to the crane, the other side of the mounting seat is connected with the mounting assembly, and the mounting assembly is connected with the lifting hook through the adjusting device; the mounting assembly comprises hydraulic rods, hydraulic cylinders, a hydraulic synchronous valve and a flow controller, a plurality of hydraulic cylinders are uniformly distributed on the other side of the mounting seat, the hydraulic cylinders are provided with the hydraulic rods which are correspondingly connected one by one, the plurality of hydraulic cylinders are connected with the hydraulic synchronous valve, and the flow controller is arranged on the hydraulic synchronous valve; and the hydraulic synchronous valve adjusts the flow of each branch part through the flow controller, so that the flow in the plurality of hydraulic cylinders is kept consistent, and synchronous driving of the plurality of hydraulic rods is ensured. Hydraulic control over the hydraulic cylinder is achieved through the hydraulic synchronous valve, the multiple hydraulic rods are driven synchronously, the moving stability and consistency are guaranteed, angle adjustment of the lifting hook within a certain range is achieved, and the application range is widened.

Description

Technical Field

[0001] The present invention relates to the field of cranes, in particular to a special lifting device for cranes. Background Art

[0002] The lifting device can lift and carry heavy objects vertically and horizontally within a certain range. The most commonly used lifting device is the hook, and others include lifting rings, lifting suction cups, clamps and lifting beams. Prefabricated parts refer to steel, wood or concrete components prefabricated in factories or on-site according to design specifications. During construction, multiple prefabricated parts need to be hoisted to the destination for installation. During the assembly and installation process, the prefabricated parts prefabricated from the factory need to be transported to the site and transported to the installation location through the lifting device for installation.

[0003] During the lifting process of large equipment and high-precision products, the lifting device needs to be adjusted at a certain angle. In the existing technology, the cables are mainly pulled manually to ensure that the objects on the lifting device can accurately fall into the target location. However, in this process, it is not only easy to cause secondary damage to the lifted objects, but also the safety of the staff cannot be guaranteed. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a special lifting device for a crane.

[0005] A special hoisting device for a crane provided by the present invention comprises: a mounting seat, a mounting assembly, an adjusting device and a hook, wherein one side of the mounting seat is connected to the crane, and the other side of the mounting seat is connected to the mounting assembly, and the mounting assembly is connected to the hook through the adjusting device; The installation assembly includes a hydraulic rod, a hydraulic cylinder, a hydraulic synchronization valve and a flow controller. A plurality of hydraulic cylinders are evenly distributed on the other side of the installation seat. The hydraulic cylinders are provided with hydraulic rods connected one by one. The plurality of hydraulic cylinders are connected to the hydraulic synchronization valve. The hydraulic synchronization valve is provided with a flow controller. The hydraulic synchronization valve adjusts the flow of each branch through the flow controller to keep the flow in the plurality of hydraulic cylinders consistent, thereby ensuring the synchronous driving of the plurality of hydraulic rods. The hook comprises a connecting seat, a retracting device and a hook. The connecting seat is provided with the retracting device, the retracting device is connected to the hook, and the hook can be height-adjusted through the retracting device.

[0006] Preferably, the adjusting device includes an angle adjuster, a fixed shaft, an adjusting shaft and a base, the hydraulic rods are respectively connected to the base, the base is connected to the angle adjuster through the fixed shaft, the angle adjuster is connected to the adjusting shaft, and the adjusting shaft is connected to the connecting seat.

[0007] Preferably, the hook includes a mounting hole, a hook body and a protrusion, a plurality of mounting holes are arranged on the top of the hook body, a cable on the retractable device is passed through the mounting holes, a plurality of evenly distributed protrusions are arranged on the hook body, and anti-slip pads are arranged on the hook body and the protrusions.

[0008] Preferably, a fixing hole is provided on the open end of the hook body, a mounting rod is inserted into the fixing hole, and both ends of the mounting rod are respectively connected to the storage basket.

[0009] Preferably, each hydraulic cylinder is provided with a straight oil pipe, and a plurality of oil pipe branches are respectively connected to the hydraulic synchronization valves.

[0010] Preferably, the protrusion and the hook body are integrally cast; and the mounting hole and the fixing hole are integrally cast on the hook body.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention drives the hook through multiple hydraulic rods so that it can move within a certain range; at the same time, the hydraulic synchronization valve controls the hydraulic cylinder under the control of the flow controller, so that the multiple hydraulic rods are driven synchronously to ensure the stability and consistency of movement. The telescopic length of the multiple hydraulic rods can be adjusted through the control of the flow controller, so that the hook can achieve angle adjustment within a certain range; (2) The present invention adopts the practicality of the adjustment shaft and the angle adjuster, which can realize the angle adjustment of the hook within a small range, ensuring that the hook can perform high-precision lifting operations and cooperate with the retracting and releasing device to realize the movement of objects; (3) The present invention adopts a convex block to effectively ensure that the object does not move during the lifting process, thereby improving the safety of the overall lifting. The anti-slip pad is practical and effective to achieve anti-slip. At the same time, the detachable storage basket can weave high-precision products, expand the scope of application, and ensure the stability and safety of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the hydraulic cylinder oil circuit in the present invention; Figure 3 It is a schematic diagram of the structure of the hook in the present invention.

[0013] The figure shows: a mounting base 1, a mounting assembly 2, a hydraulic rod 21, a hydraulic cylinder 22, a hydraulic synchronization valve 23, a flow controller 24, an adjusting device 3, an angle adjuster 31, a fixed shaft 32, an adjusting shaft 33, a base 34, a hook 4, a connecting base 41, a retracting device 42, a hook 43, a mounting hole 431, a hook body 432, a protrusion 433, a fixing hole 434, a mounting rod 435, and a storage basket 436. DETAILED DESCRIPTION

[0014] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention. Example 1

[0015] According to the present invention, a special lifting device for a crane is provided, such as Figure 1-3 As shown, it includes: a mounting base 1, a mounting assembly 2, an adjusting device 3 and a hook 4. One side of the mounting base 1 is connected to the crane to realize the lifting of the starter. The other side of the mounting base 1 is connected to the mounting assembly 2, and the mounting assembly 2 is connected to the hook 4 through the adjusting device 3, and the objects are hooked on the hook 4 to move the objects. The hook 4 includes a connecting base 41, a retracting device 42 and a hook 43. The connecting base 41 is provided with a retracting device 42, and the retracting device 42 is connected to the hook 43. The hook 43 can achieve height adjustment through the retracting device 42. A cable is passed through the hook 43, and the cable is wound on the retracting device 42, so that the hook 43 can be adjusted in height in the vertical direction. At the same time, the overall structure is installed on the crane, and can be moved as a whole in the horizontal direction to realize the lifting and movement of objects.

[0016] like Figure 1-2 As shown, the mounting assembly 2 includes a hydraulic rod 21, a hydraulic cylinder 22, a hydraulic synchronization valve 23 and a flow controller 24. A plurality of hydraulic cylinders 22 are evenly distributed on the other side of the mounting seat 1. The hydraulic cylinders 22 are provided with hydraulic rods 21 connected one by one. The plurality of hydraulic cylinders 22 are connected to the hydraulic synchronization valve 23. The hydraulic synchronization valve 23 is provided with a flow controller 24. Preferably, each hydraulic cylinder 22 is provided with a straight oil pipe, and a plurality of oil pipe branches are respectively connected to the hydraulic synchronization valve 23. The hydraulic synchronization valve 23 adjusts the flow of each branch through the flow controller 24, so that the flow in the plurality of hydraulic cylinders 22 remains consistent, and ensures that the plurality of hydraulic rods 21 are driven synchronously. The practical use of the plurality of hydraulic rods 21 can not only effectively improve the firmness of the overall structure, and greatly enhance the bearing capacity, but also effectively play a certain buffering effect on the hook 4, and prolong the service life of the overall structure.

[0017] Working principle: The mounting base 1 in this embodiment is mounted on the crane to realize the overall installation of the crane, ensuring that the lifting device can move horizontally on the crane. Under the control of the flow controller 24, the hydraulic synchronization valve 23 ensures the synchronization of the oil pressure in each hydraulic cylinder 22, ensuring that the multiple hydraulic rods 21 are stretched and retracted in unison. The hydraulic rod 21 pushes the hook 4 to adjust a certain height, so that the lifting device has a wide range of applications, and can be adjusted to a certain angle through the adjustment device 3, which can be used for high-precision lifting of objects. Example 2

[0018] This embodiment 2 is completed on the basis of embodiment 1, and mainly further explains the adjustment device 3. Figure 1 As shown, specifically: The adjusting device 3 includes an angle adjuster 31, a fixed shaft 32, an adjusting shaft 33 and a base 34. The hydraulic rods 21 are respectively connected to the base 34. The base 34 is connected to the angle adjuster 31 through the fixed shaft 32. The angle adjuster 31 is connected to the adjusting shaft 33. The adjusting shaft 33 is connected to the connecting seat 41 to achieve small angle adjustment of the hook 4.

[0019] Working principle: Through the cooperation of the angle adjuster 31 and the adjusting shaft 33, the hook 4 can be adjusted to a certain angle, so that it can better adjust the angle of the object during the movement process and expand the applicable range of the overall movement. At the same time, through the small angle adjustment, the accuracy of the object movement is ensured. Example 3

[0020] This embodiment 3 is completed on the basis of embodiment 1, mainly to further explain the hook 43, such as Figure 3 As shown, specifically: The hook 43 includes a mounting hole 431, a hook body 432 and a protrusion 433. The top of the hook body 432 is provided with a plurality of mounting holes 431. The cables on the retracting device 42 are inserted into the mounting holes 431. The hook 43 can move up and down by retracting the cables. The hook body 432 is provided with a plurality of evenly distributed protrusions 433. The protrusions 433 and the hook body 432 are integrally cast, which is stable and firm. The mounting hole 431 and the fixing hole 434 are integrally cast on the hook body 432. The entire hook 43 has a firm structure, and the evenly distributed protrusions 433 can effectively realize the displacement of the ropes binding the hoisted objects, effectively prevent movement, and improve the stability of movement. The hook body 432 and the protrusions 433 are provided with anti-skid pads to improve the anti-skid property of the hoisted objects.

[0021] A fixing hole 434 is provided on the open end of the hook body 432, and a mounting rod 435 is inserted into the fixing hole 434. Both ends of the mounting rod 435 are respectively connected to a storage basket 436. The storage basket 436 is detachable. When small items need to be lifted, they can be placed in the storage basket 436 for lifting, which is not only safe but also effectively protects them and effectively reduces damage to small items.

[0022] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A special lifting device for a crane, characterized in that: include: A mounting seat (1), a mounting assembly (2), an adjusting device (3) and a hook (4), wherein one side of the mounting seat (1) is connected to the hoist, the other side of the mounting seat (1) is connected to the mounting assembly (2), and the mounting assembly (2) is connected to the hook (4) via the adjusting device (3); The mounting assembly (2) comprises a hydraulic rod (21), a hydraulic cylinder (22), a hydraulic synchronization valve (23) and a flow controller (24); a plurality of the hydraulic cylinders (22) are evenly distributed on the other side of the mounting seat (1); the hydraulic cylinders (22) are provided with the hydraulic rods (21) connected one by one; the plurality of hydraulic cylinders (22) are connected to the hydraulic synchronization valve (23); the hydraulic synchronization valve (23) is provided with the flow controller (24); the hydraulic synchronization valve (23) adjusts the flow of each branch through the flow controller (24) so ​​that the flow in the plurality of hydraulic cylinders (22) remains consistent, thereby ensuring that the plurality of hydraulic rods (21) are driven synchronously; The hook (4) comprises a connecting seat (41), a retracting device (42) and a hook (43); the connecting seat (41) is provided with the retracting device (42); the retracting device (42) is connected to the hook (43); and the hook (43) can be adjusted in height through the retracting device (42).

2. The crane-specific lifting device according to claim 1, characterized in that: The adjusting device (3) comprises an angle adjuster (31), a fixed shaft (32), an adjusting shaft (33) and a base (34); the hydraulic rods (21) are respectively connected to the bases (34); the bases (34) are connected to the angle adjuster (31) via the fixed shaft (32); the angle adjuster (31) is connected to the adjusting shaft (33); and the adjusting shaft (33) is connected to the connecting seat (41).

3. The crane-specific lifting device according to claim 1, characterized in that: The hook (43) comprises a mounting hole (431), a hook body (432) and a protrusion (433); a plurality of mounting holes (431) are provided on the top of the hook body (432); a cable on the retractable device (42) is passed through the mounting hole (431); a plurality of evenly distributed protrusions (433) are provided on the hook body (432); and anti-slip pads are provided on the hook body (432) and the protrusions (433).

4. The crane-specific lifting device according to claim 3, characterized in that: A fixing hole (434) is provided on the open end of the hook body (432), a mounting rod (435) is inserted into the fixing hole (434), and both ends of the mounting rod (435) are respectively connected to a storage basket (436).

5. The crane-specific lifting device according to claim 1, characterized in that: Each hydraulic cylinder (22) is provided with an oil pipe straight line, and a plurality of oil pipe branches are respectively connected to the hydraulic synchronization valve (23).

6. The crane-specific lifting device according to claim 4, characterized in that: The protrusion (433) and the hook body (432) are integrally cast; and the mounting hole (431) and the fixing hole (434) are integrally cast on the hook body (432).

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