A wear-resistant lifting hook with replaceable lifting wear zone

Abstract

The utility model discloses a replaceable wear -resisting hook of hoisting and wearing area, including hook handle, hook body, gasket, the hook handle has a through hook ring, the hook body with the hook handle is integrally connected, and the lower part curved portion of hook body is provided with the clamping slot, the clamping slot is symmetrically set up, gasket sets up in the inside of the curved portion of hook body, the utility model discloses through with the vulnerable area independent wear -resisting gasket, has realized the accurate positioning and individual replacement of wearing part, when gasket wears to the limit, only needs to replace the gasket of cheap price, need not scrap whole hook, has reduced maintenance cost and material waste significantly, specific through setting up gasket on the hook body of the utility model discloses, the gasket is pasted the inside of the curved portion of hook body, and is provided with the clamping slot on the both sides of the hook body, the both sides of gasket are provided with arc plate, and the end of arc plate is provided with clamping strip, and the arc plate is fixed through clamping in the clamping slot.

Description

Technical Field

[0001] This utility model relates to the field of hoisting, and in particular to a wear-resistant hook with replaceable hoisting wear area. Background Technology

[0002] As a key component in lifting machinery that directly bears heavy objects, the structural integrity and reliability of the hook are the core guarantee for the safety of the entire lifting operation. During the cyclical lifting process, the inner curved part of the hook (i.e., the hook groove) needs to continuously bear the enormous pressure and intense friction from the wire rope, lifting straps, or the heavy object itself, which makes this area the part with the most concentrated abrasive wear.

[0003] Currently, most traditional lifting hooks are of a one-piece structure, forged or rolled from a single metal material. Although this structure has high initial strength, its load-bearing friction surface and the hook body are an inseparable whole.

[0004] After prolonged use, the load-bearing surface will develop deep grooves due to severe wear, significantly reducing the effective load-bearing cross-section of the hook and degrading its mechanical properties. Once the wear exceeds safety standards, the only solution is to scrap the entire hook. This not only brings continuous spare parts cost pressure and wastes resources, but also causes equipment downtime due to frequent replacements, affecting operational efficiency.

[0005] Although attempts have been made to repair the hook using welding techniques, the high temperature of welding alters the metallographic structure and heat treatment state of the hook base material, introducing potential micro-cracks and stress concentration points, which seriously endangers lifting safety. Therefore, most safety regulations strictly prohibit this operation. Utility Model Content

[0006] One objective of this invention is to provide a wear-resistant lifting hook with a replaceable lifting wear area that at least solves any of the above-mentioned technical problems.

[0007] A further objective of this invention is to concentrate wear on easily replaceable components by providing replaceable wear-resistant pads, thereby effectively avoiding continuous wear in the critical load-bearing areas of the hook body and extending the service life of the hook body.

[0008] Another further objective of this invention is to improve the continuous usability of the hook and minimize the number of equipment downtimes and replacements caused by hook wear.

[0009] In particular, this utility model provides a wear-resistant hook with replaceable lifting wear area, including hook handle, the hook handle having a through hook ring; The hook body is integrally connected to the hook handle, and the lower curved part of the hook body is provided with a slot, which is symmetrically arranged on the left and right sides. A pad is disposed on the inside of the curved portion of the hook body.

[0010] Furthermore, the padding includes: The main body has a plurality of grooves on its upper surface, the grooves being evenly spaced. The arc plate is disposed on both sides of the main body and is symmetrically arranged. One end of the arc plate is connected to the main body, and the other end of the arc plate is provided with a retaining strip, which is correspondingly arranged with the retaining groove.

[0011] Furthermore, pry holes are provided on the arc plate.

[0012] Furthermore, the arc plate is made of a metal material with tension.

[0013] Furthermore, the main body adopts a composite padding layer of glass fiber padding layer and silicone padding layer.

[0014] The technical effects and advantages of this utility model are as follows: This invention achieves precise positioning and individual replacement of worn areas by using a wear-resistant pad as a separate wear-resistant liner. When the liner wears to its limit, only an inexpensive liner needs to be replaced, eliminating the need to scrap the entire hook, significantly reducing maintenance costs and material waste. Specifically, a liner is provided on the hook body, fitting against the inner side of the curved portion of the hook body. Slots are provided on both sides of the hook body, and arc plates are provided on both sides of the liner. A retaining strip is provided at the end of each arc plate, and the arc plate is fixed in place by the retaining strip within the slot. Anti-slip grooves are also provided on the liner. In use, the entire liner is placed inside the curved portion of the hook body, using a press-to-install, pry-to-remove snap-lock structure. During installation, simply place the liner into the hook slot and press firmly to allow the retaining strip at the end of the arc plate to slide in and lock into the slot, ensuring a secure connection. For disassembly, simply insert a tool (such as a screwdriver) into the pry hole and gently pry outwards to open the elastic arc plate, easily removing the old liner. The entire operation requires no special tools, takes very little time, and minimizes equipment downtime. Attached Figure Description

[0015] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a front view structural diagram of the present utility model.

[0017] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0018] Figure 4 This utility model Figure 3 A magnified schematic diagram of part B.

[0019] In the diagram: 1. Hook handle, 2. Hook ring, 3. Hook body, 301. Slot, 4. Pad, 401. Groove, 402. Arc plate, 403. Locking strip, 404. Pry hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a front view structural diagram of the present utility model. Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure along the AA direction. Figure 4 This utility model Figure 3 A magnified schematic diagram of part B.

[0022] like Figures 1 to 4 As shown, the wear-resistant hook with replaceable lifting wear area provided by this utility model mainly consists of two parts: the hook body and the replaceable wear-resistant pad 4.

[0023] This embodiment provides a wear-resistant lifting hook with replaceable lifting wear areas. The hook body is a one-piece forged metal component with extremely high structural strength. It includes an upper cylindrical hook handle 1 and a lower curved hook body 3. The top of the hook handle 1 is machined with a through hook ring 2 for connecting to the crane lifting point. On the curved load-bearing section inside the hook body 3, a pair of slots 301 are symmetrically machined on its left and right side walls. The slots 301 are preferably through-type elongated slots or dovetail slots, which serve to provide a stable mechanical connection point for the wear-resistant pad 4.

[0024] The wear-resistant pad 4 is fixed to the wear-prone area of ​​the hook body by a snap-fit ​​structure; the pad 4 specifically includes a supporting body that matches the inner curvature of the hook body 3; the upper surface of the supporting body, that is, the load-bearing surface that directly contacts the rope or heavy object, is precisely machined with several parallel and equidistant anti-slip grooves 401; the grooves 401 can not only effectively increase the friction and prevent the load from sliding, but also accommodate some wear debris during the friction process and slow down the wear process; wherein, the main body adopts a composite pad layer of glass fiber pad layer and silicone pad layer.

[0025] On both sides of the supporting body, there are elastic arc plates 402 that open outward to a moderate extent. The arc plates 402 are made of materials with good mechanical elasticity and fatigue resistance, such as 60Si2Mn spring steel, so that they have a certain pretension. At the free end of each elastic arc plate 402, there is a locking strip 403 that is completely complementary to the shape of the locking groove 301 on the hook body. In addition, one or more pry holes 404 are opened at the middle and upper part of each elastic arc plate 402. These holes are designed to provide a force support point for disassembly tools (such as screwdrivers and pry bars).

[0026] Working principle of this utility model: When using the pad, align the new wear-resistant pad 4 with the curved part inside the hook body 3, ensuring it supports the main body and fits snugly against the hook groove. Then, use your hand or a simple tool to evenly press the elastic arc plate 402 area on both sides of the pad 4 body inward. Under pressure, the arc plate 402 elastically deforms and retracts inward, causing the locking strip 403 at its end to slide into the locking groove 301 on the hook body 3. Once the locking strip 403 is fully inserted into the locking groove 301 and locked in place, the arc plate 402 rebounds due to its own elastic tension, firmly locking the locking strip 403 in the locking groove 301, thus achieving quick and secure installation of the pad 4. When it is necessary to replace the worn pad 4, insert the tip of the disassembly tool into the pry hole 404. Then, gently turn the tool away from the center of the hook, forcing the elastic arc plate 402 to deform outward until the locking strip 403 at its end disengages from the locking groove 301. At this point, the old wear-resistant pad 4 can be easily removed from the hook, and then the new pad 4 can be installed. The whole process is simple, safe, and quick.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wear-resistant lifting hook with replaceable wear areas, characterized in that, include, Hook handle (1), the hook handle (1) having a through hook ring (2); The hook body (3) is integrally connected with the hook handle (1), and the lower curved part of the hook body (3) is provided with a slot (301), and the slot (301) is symmetrically arranged on the left and right. Pad (4), which is disposed on the inside of the curved portion of the hook (3).

2. The wear-resistant lifting hook with replaceable lifting wear area according to claim 1, characterized in that, The pad (4) includes: The main body has a plurality of grooves (401) on its upper surface, and the grooves (401) are evenly spaced. Arc plate (402) is arranged on both sides of the main body and is symmetrically arranged. One end of the arc plate (402) is connected to the main body, and the other end of the arc plate (402) is provided with a retaining strip (403). The retaining strip (403) is correspondingly arranged with the retaining groove (301).

3. The wear-resistant lifting hook with replaceable lifting wear area according to claim 2, characterized in that, The arc plate (402) has a pry hole (404).

4. The wear-resistant lifting hook with replaceable lifting wear area according to claim 2, characterized in that, The arc plate (402) is made of a metal material with tension.

5. A wear-resistant lifting hook with replaceable lifting wear area according to claim 2, characterized in that, The main body is a composite padding layer consisting of a glass fiber padding layer and a silicone padding layer.

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