Auxiliary device for replacing crane lifting hook
By designing a driving hook replacement auxiliary device, using lifting platform, bayonet, mount and locker devices, the automatic or semi-automated replacement of the hook body is realized, solving the problem of high labor intensity and low efficiency in the hook body replacement process in the existing technology, and improving the replacement efficiency.
Patent Information
- Application Number
- CN202421494805.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing hook body replacement process is labor-intensive and inefficient, and multiple operators are required to operate simultaneously.
A driving hook replacement auxiliary device is designed, including a lifting platform, bayonet, lifting device, a cart, a locker and a locker tensioning device, through which the hook body is automatically replaced or semi-automated.
It reduces the labor intensity of operators, improves the efficiency of hook body replacement, and simplifies the operation process.
Smart Images
Figure CN222647437U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a crane hook maintenance tool, in particular to a crane hook replacement auxiliary device. Background Art
[0002] The most commonly used bridge crane is erected on the track of the fixed span pillar of the building. It is used in workshops, warehouses, etc., and is used for loading and unloading and lifting and handling work indoors or outdoors. It is generally called a traveling crane in the factory. The objects are usually lifted by a hook to carry out loading and unloading, lifting, installation and other operations. The hook includes a hanging beam and a hook body. The two ends of the hanging beam are connected to the hanging arm of the lifting device through a rotating shaft. The hanging beam is provided with a mounting hole. The tail of the hook body extends from the bottom of the hanging beam through the mounting hole to the top of the hanging beam. The position of the hook body below the hanging beam is convex to form a convex ring for the lower limit. The tail of the hook body is located above the hanging beam and is threaded with a nut for the upper limit. The nut is rotated with the hanging beam through a bearing to realize the self-rotation of the hook body. However, during the use of the hook, the hook body is subjected to the action of torque and tension. Metal fatigue will occur over time, resulting in deformation or cracks. When the deformation or crack exceeds the allowable range or the hook body reaches its service life, the hook body needs to be replaced.
[0003] At present, the replacement of the hook body is usually done manually: first, the hook body is lowered and placed on the ground, and the hook body is laid flat by rotating the hanging beam, and then the nuts, bearings and other related parts are gradually removed; then the hook body is manually dragged to pull the tail of the hook body out of the mounting hole of the hanging beam; the new hook body is directly placed flat on the ground, and the tail of the hook body is aligned with the mounting hole, and then the hook body is pushed on the ground to make the tail of the hook body pass through the mounting hole, and then the bearings, nuts and other parts are installed. Due to the heavy weight of the hook body, several operators are required to operate the replacement of the hook body at the same time, and the entire disassembly and assembly process is labor-intensive, time-consuming and inefficient. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is: how to provide a crane hook replacement auxiliary device which is simple and convenient to operate, can reduce the labor intensity of operators, and improve the efficiency of hook replacement.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] The lifting mechanism is a lifting mechanism that can be lifted up and down by the lifting of the lifting lever, and the lifting lever is connected with the lifting lever on a vertical direction to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards and downwards to move the lifting lever upwards
[0007] In the utility model, when in use, the hook is first lowered to the corresponding position and maintained in a vertical state. According to relevant safety regulations, no operation is performed on the hook during the entire subsequent process; then the height of the lifting platform is controlled so that the bayonet on it corresponds to the position below the convex ring on the hook body, and then the operating platform is moved to make the hook body snap into the bayonet, and then the height of the lifting platform is raised again so that the lifting platform abuts against the bottom of the convex ring and supports the hook body. After the hook body is supported, the upper nut and bearing and other related components can be disassembled; after the disassembly is completed, the control The lifting platform descends, so that the tail of the hook body moves out of the installation hole from under the hanging beam, and at the same time, the hook body enters into the clamping space between the two clamping seats; after the hook body enters into the clamping space and the bottom of the hook body is placed on the cart, the two clamping seats are respectively controlled to move toward the direction of the hook body, so that the slots on the two clamping seats are respectively clamped at the front and rear ends of the hook body, thereby realizing the horizontal limit of the hook body, and the clamping seat tensioning device is used to tighten the two clamping seats to prevent the hook body from falling out; after the hook body is fixed on the cart, the operator can easily drag away the replaced old hook body. Similarly, when replacing a new hook body, the new hook body can be pre-lifted vertically on the cart by other lifting tools, and the new hook body can be limited by the clamping seat; the new hook body is clamped into the clamping mouth by moving the cart, and the convex ring on the new hook body is placed on the lifting platform; after loosening the clamping seat to limit the position of the new hook body, the lifting platform is operated to rise, and the new hook body is detached from the cart. During this process, the tail of the new hook body can pass through the mounting hole on the hanging beam from the bottom of the hanging beam, and finally the bearing, nut and other components are reinstalled to achieve the connection between the new hook body and the hanging beam. Finally, the crane operates the hook to move horizontally to move the hook body out of the clamping mouth, thus completing the entire disassembly and assembly process.
[0008] As an optimization, the clamping seat tensioning device includes two tensioning screws located on the same horizontal plane and arranged in parallel, the tensioning screws extend along the relative directions of the two clamping seats, each tensioning screw passes through the two clamping seats respectively, and the tensioning screw can slide and cooperate with the clamping seats along the relative directions parallel to the two clamping seats, the tensioning screw is located at the outer end of one of the clamping seats and fixedly connected to the limited stopper, and the tensioning screw is located at the outer rod body of the other clamping seat and is threaded with a locking nut, and the two tensioning screws are respectively located on both sides of the clamping space formed between the two clamping grooves. After passing through the two clamping seats, the tensioning screws are tightened on the hook body by screwing the locking nut.
[0009] As an optimization, a blocking bar is fixedly connected to both sides of the clamping space formed between the two clamping slots on the top surface of the cart, and the blocking bar is extended in parallel to the relative direction of the two clamping seats, and the two blocking bars can respectively block and limit the two sides of the hook body to be operated. When the hook body is placed on the top surface of the cart, the bottom of the hook body can be limited.
[0010] As an optimization, a vertical support rod extending vertically is fixedly connected to the top surface of the lifting platform, a horizontal support rod extending horizontally is fixedly connected to the top of the vertical support rod, an automatic rope-taking device is fixedly connected to the end of the horizontal support rod, a reel and a driver for driving the reel to perform a reeling operation are provided in the automatic rope-taking device, a lifting rope is wound around the reel, one end of the lifting rope is fixed to the reel, and the other end extends out of the automatic rope-taking device, a nut disassembly sleeve is provided at the end of the lifting rope outside the automatic rope-taking device, and the bottom end of the nut disassembly sleeve protrudes outward to form a cylinder having the same center line as the nut disassembly sleeve. A rotating column, a rotating sleeve for rotating with the rotating column is sleeved on the rotating column, a threaded end of the rotating column located away from the nut disassembly sleeve is matched with a limit head for blocking and limiting the rotating sleeve, the lifting rope is fixedly connected to the rotating sleeve, the gravity of the nut disassembly sleeve is greater than the reeling force of the driver on the reel to reel the lifting rope, the nut disassembly sleeve can be sleeved on the nut at the top of the hook body to be operated on the lifting platform to be able to perform a screwing operation, a hook is fixedly connected to the rod body of the horizontal support rod, a hanging ring is fixedly connected to the limit head, and the limit head can be hung on the hook through the hanging ring. When the nut disassembly sleeve is not used, it can be hung on the hook, at this time the nut disassembly sleeve does not apply force to the lifting rope, and the driver can collect the excess lifting rope extending out of the automatic rope collection device into it and reel it on the reel. When using the nut disassembly sleeve, the automatic rope retracting device can be pulled out from the lifting rope to facilitate the operation of the nut disassembly sleeve. In addition, since the gravity of the nut disassembly sleeve is greater than the reeling force of the driver on the reel reeling rope operation, the lifting rope cannot pull the nut disassembly sleeve, which is convenient for the operator to use.
[0011] As an optimization, a rotating handle is symmetrically fixedly connected to the barrel of the nut disassembling sleeve with its center line as the symmetry axis, and the rotating handle extends in the radial direction of the nut disassembling sleeve. It is not only convenient for operators to hold the rotating handle to rotate the nut disassembling sleeve, but also convenient to use tools such as torque extension rods to operate on the rotating handle.
[0012] Compared with the prior art, the utility model has a simple structure and is convenient and reliable to use, which not only reduces the labor intensity of operators in the process of disassembling and assembling the hook body, but also improves the efficiency of replacing the hook body. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a structural schematic diagram of the utility model in which the lifting platform supports the hook body;
[0014] Figure 2 It is a structural schematic diagram of the utility model in which the hook body is limited. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0016] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when used, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0017] like Figure 1 and Figure 2 As shown, the crane hook replacement auxiliary device in this specific embodiment includes a horizontally arranged lifting platform 1, a bayonet extending into the lifting platform 1 is provided on one side of the lifting platform 1, and the lifting platform 1 can be clamped at the bottom of the limiting convex ring on the hook body 2 to be operated through the bayonet, and a plurality of lifting devices 3 for synchronously lifting the lifting platform 1 are arranged below the lifting platform 1, and a lifting column that can be telescopic in the vertical direction extends from the top of the lifting device 3, and the top of the lifting column is fixedly connected to the lifting platform 1; a lifting device 3 is arranged below the lifting platform 1. A cart 4 is provided, and two clamping seats 5 are arranged on the top surface of the cart 4. The two clamping seats 5 are slidably connected to the top surface of the cart 4 and can slide horizontally in relative or reverse directions. The side surfaces of the two clamping seats 5 on opposite sides are respectively provided with vertically extending clamping grooves, which are through grooves. The two clamping grooves are arranged relatively along the sliding directions of the two clamping seats 5 and can be respectively clamped on the front end and the rear end of the hook body 2 to be operated. A clamping seat tensioning device is arranged between the two clamping seats 5, and the clamping seat tensioning device acts on the two clamping seats 5 respectively and can tighten the two clamping seats 5 in relative directions.
[0018] In this specific embodiment, the base tensioning device includes two tensioning screws 6 located in the same horizontal plane and arranged in parallel, the tensioning screws 6 extend along the relative directions of the two bases 5, each tensioning screw 6 passes through the two bases 5 respectively, and the tensioning screw 6 can slide with the bases 5 along the relative directions parallel to the two bases 5. The outer end of the tensioning screw 6 located at one of the bases 5 is fixedly connected to a limiting stop block 7, and the outer rod body of the tensioning screw 6 located at the other base 5 is threadedly fitted with a locking nut 8, and the two tensioning screws 6 are respectively located on both sides of the clamping space formed between the two slots.
[0019] In this specific embodiment, baffle bars 9 are fixedly connected on both sides of the clamping space formed between the two card slots and on the top surface of the cart 4. The baffle bars 9 extend in parallel with the relative directions of the two card seats 5. The two baffle bars 5 can respectively block and limit the two sides of the hook body 2 to be operated.
[0020] In this specific embodiment, a vertically extending vertical support rod 10 is fixedly connected to the top surface of the lifting platform 1, a horizontal support rod 11 extending horizontally is fixedly connected to the top of the vertical support rod 10, and an automatic rope-taking device 12 is fixedly connected to the end of the horizontal support rod 11. A reel and a driver for driving the reel to perform a reeling operation are provided in the automatic rope-taking device 12. A lifting rope 13 is wound around the reel, one end of the lifting rope 13 is fixed to the reel, and the other end extends out of the automatic rope-taking device 12. A nut disassembly sleeve 14 is provided at one end of the lifting rope 13 located outside the automatic rope-taking device 12, and the bottom end of the nut disassembly sleeve 14 protrudes outward to form a concentric ring with the nut disassembly sleeve 14. A rotating column is arranged on the line, and a rotating sleeve 15 is sleeved on the rotating column and rotated with it. The rotating column is located at the end of the rotating sleeve 15 away from the nut disassembly sleeve 14 and is threadedly matched with a limit head for blocking and limiting the rotating sleeve 15. The lifting rope 13 is fixedly connected to the rotating sleeve 15. The gravity of the nut disassembly sleeve 14 is greater than the winding force of the driver on the reel to wind up the lifting rope 13. The nut disassembly sleeve 14 can be sleeved on the nut at the top of the hook body 2 to be operated on the lifting platform 1 so as to be able to perform a screwing operation. A hook is fixedly connected to the rod body of the horizontal support rod 11, and a hanging ring 16 is fixedly connected to the limit head, and the limit head can be hung on the hook through the hanging ring 16.
[0021] In this specific embodiment, a rotating handle 17 is symmetrically fixedly connected to the barrel of the nut disassembling sleeve 14 with its center line as the symmetry axis, and the rotating handle 17 extends in the radial direction of the nut disassembling sleeve 14 .
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described by referring to the preferred embodiments of the utility model, those skilled in the art should understand that various changes can be made in form and details without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims
1. A crane hook replacement auxiliary device, characterized in that: The lifting platform comprises a horizontally arranged lifting platform, a bayonet extending into the lifting platform is provided on one side of the lifting platform, and the lifting platform can be clamped on the bottom of the limiting convex ring on the hook body to be operated through the bayonet, and a plurality of lifting devices for synchronously lifting and lowering the lifting platform are arranged below the lifting platform, and a lifting column that can be telescopic in the vertical direction is extended from the top of the lifting device, and the top of the lifting column is fixedly connected to the lifting platform; a cart is arranged below the lifting platform, and two clamping seats are arranged on the top surface of the cart, and the two clamping seats are slidably connected to the top surface of the cart and can slide horizontally in relative or reverse directions, and vertically extending clamping grooves are respectively provided on the side surfaces of the two clamping seats on opposite sides, and the clamping grooves are through grooves, and the two clamping grooves are relatively arranged along the sliding directions of the two clamping seats and can be respectively clamped on the front end and the rear end of the hook body to be operated, and a clamping seat tensioning device is arranged between the two clamping seats, and the clamping seat tensioning devices act on the two clamping seats respectively and can tighten the two clamping seats in relative directions.
2. The crane hook replacement auxiliary device according to claim 1, characterized in that: The base tensioning device includes two tensioning screws located in the same horizontal plane and arranged in parallel, the tensioning screws extending along the relative directions of the two bases, each tensioning screw passing through the two bases respectively, and the tensioning screws can slide with the bases along the relative directions parallel to the two bases, the tensioning screw is located at the outer end of one of the bases and is fixedly connected to a limited stop block, the tensioning screw is located at the outer rod body of the other base and is threadedly fitted with a locking nut, and the two tensioning screws are respectively located on both sides of the clamping space formed between the two card slots.
3. The crane hook replacement auxiliary device according to claim 1, characterized in that: Baffles are fixedly connected on both sides of the clamping space formed between the two card slots and on the top surface of the cart. The baffles are extended in parallel with the relative directions of the two card seats. The two baffles can respectively block and limit the two sides of the hook body to be operated.
4. The crane hook replacement auxiliary device according to claim 1, characterized in that: A vertical supporting rod extending vertically is fixedly connected to the top surface of the lifting platform, a horizontal supporting rod extending horizontally is fixedly connected to the top of the vertical supporting rod, an automatic rope-taking device is fixedly connected to the end of the horizontal supporting rod, a reel and a driver for driving the reel to take up the rope are arranged in the automatic rope-taking device, a lifting rope is wound around the reel, one end of the lifting rope is fixed to the reel, and the other end extends out of the automatic rope-taking device, a nut disassembly sleeve is arranged at the end of the lifting rope outside the automatic rope-taking device, and the bottom end of the nut disassembly sleeve protrudes outward to form a rotating shaft arranged on the same center line as the nut disassembly sleeve The sling is fixedly connected to the rotating sleeve, the gravity of the nut disassembly sleeve is greater than the winding force of the driver on the reel to wind up the sling, and the nut disassembly sleeve can be sleeved on the nut at the top of the hook body to be operated on the lifting platform so as to be able to perform a screwing operation, a hook is fixedly connected to the rod body of the horizontal support rod, a hanging ring is fixedly connected to the limit head, and the limit head can be hung on the hook through the hanging ring.
5. The crane hook replacement auxiliary device according to claim 4, characterized in that: A rotating handle is symmetrically fixedly connected to the barrel of the nut disassembling sleeve with its center line as the symmetry axis, and the rotating handle extends in the radial direction of the nut disassembling sleeve.