Self-lubricating crane hook

By designing an automated lubrication mechanism in the crane hook, and using sponge strips to automatically apply lubricating oil between the pulley and the positioning shaft, the problems of cumbersome hook wear and manual lubrication in the prior art are solved, automatic lubrication is achieved, and work efficiency and equipment life are improved.

CN222794966UInactive Publication Date: 2025-04-25ZHEJIANG ZHENGQI ELECTRIC CO LTD
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Patent Information

Application Number
CN202422272166.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-15
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the use of existing crane hooks, due to the high friction and pressure between the pulley and the shaft, the wear is frequent, and the manual lubrication is cumbersome and uneven, which increases maintenance costs and safety risks.

Method used

A self-lubricating crane hook is designed. By setting a sponge strip full of lubricating oil in the hook, the sponge strip automatically applies the lubricating oil to the pulley and the positioning shaft when the hook carries heavy objects, and realizes automatic lubrication.

Benefits of technology

It realizes automatic lubrication without manual intervention, reduces equipment downtime, improves work efficiency, ensures uniformity of lubrication, reduces maintenance costs, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-lubricating crane hook, which comprises two frame bodies, the at least two pulleys are arranged between the two frame bodies; the positioning shaft is connected with the pulley and the two frame bodies; the fixed rod is fixedly connected between the bottoms of the two frame bodies; the mounting seat is fixedly arranged on the fixed rod; the hook body is arranged in the mounting seat in a penetrating manner; the driving plate is in bolted connection with the top of the hook body; the driving rods are fixedly connected to the two ends of the driving plate; the sponge strip is fixedly connected to the top of the driving rod and filled with lubricating oil; the fixing block is fixedly connected with the frame body, and the driving rod is arranged in the fixing block in a penetrating mode; wherein the sponge strip is arranged between the positioning shaft and the edge of the pulley. The self-lubricating crane hook has the beneficial effects that the self-lubricating crane hook can realize automatic lubrication without manual intervention during operation, so that the downtime of equipment is reduced, and the working efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to a self-lubricating crane hook. Background Art

[0002] In the application of lifting equipment, the hook is a key component that bears the heavy responsibility of carrying and moving heavy objects. During the use of existing crane hooks, the friction and pressure between the pulley and the shaft are very large, resulting in frequent wear problems. In order to prevent the pulley from getting stuck or excessively worn, the traditional method requires regular lubrication of the hook. However, this lubrication method mainly relies on manual operation, which has many inconveniences and limitations.

[0003] Manual lubrication is not only cumbersome to operate, but also requires equipment downtime, which consumes time and human resources. It is also difficult to ensure uniformity and timeliness of lubrication. This lubrication method usually leads to uneven addition of lubricant, which may cause problems of increased local wear. At the same time, frequent manual lubrication increases the maintenance cost of the equipment and places high technical requirements on the operator. In addition, manual lubrication at high altitude or in a complex working environment has certain safety risks and may cause harm to the operator.

[0004] In order to solve these problems, the present application proposes a self-lubricating crane hook, which can realize automatic lubrication without manual intervention during operation, reduce equipment downtime and improve work efficiency. Utility Model Content

[0005] The utility model aims to provide a self-lubricating crane hook, which can realize automatic lubrication without manual intervention during operation, thereby reducing equipment downtime and improving work efficiency.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A self-lubricating crane hook comprises: two frames; at least two pulleys arranged between the two frames; a positioning shaft connecting the pulley and the two frames; a fixing rod fixedly connected between the bottoms of the two frames; a mounting seat fixedly arranged on the fixing rod; a hook body penetrated in the mounting seat; a driving plate bolted to the top of the hook body; a driving rod fixedly connected to both ends of the driving plate; a sponge strip fixedly connected to the top of the driving rod and filled with lubricating oil; a fixing block fixedly connected to the frame, and the driving rod penetrated in the fixing block; wherein the sponge strip is arranged between the positioning shaft and the edge of the pulley.

[0008] The utility model is further configured as follows: a thread is arranged on the top of the hook body, and a fixing bolt is connected to the thread.

[0009] The utility model is further configured as follows: a connecting spring is arranged between the fixing bolt and the mounting seat.

[0010] The utility model is further configured as follows: a return spring is arranged between the bottom of the fixing block and the driving rod.

[0011] The utility model is further configured as follows: the pulley is connected to the positioning shaft by a bearing.

[0012] The utility model is further configured as follows: the fixing rod is fixed between the frames by bolts.

[0013] The utility model is further configured as follows: the driving rod passes through the sponge strip and is matched with a fixing block.

[0014] The utility model is further configured such that when the hook body carries a heavy object, the hook body moves downward to drive the driving plate to move downward, thereby driving the driving rod and the sponge strip to move downward, so that the sponge strip abuts against the positioning shaft and the edge of the pulley, thereby applying lubricating oil between the positioning shaft and the pulley.

[0015] The utility model is further configured that: when the heavy object is separated from the hook body, under the action of the connecting spring and the reset spring, the hook body, the driving plate, the driving rod and the sponge strip are reset.

[0016] In summary, the utility model has the following beneficial effects:

[0017] 1. Automatic lubrication:

[0018] This design realizes automatic lubrication without manual intervention. When the hook is carrying a heavy object, the mechanism will automatically apply lubricating oil to the parts that need lubrication (between the positioning shaft and the pulley). The need for manual lubrication is reduced.

[0019] 2. Reduce downtime:

[0020] Since the lubrication process is carried out automatically, there is no need to stop the machine for lubrication operations. This significantly reduces the equipment downtime caused by lubrication maintenance.

[0021] 3. Improve work efficiency:

[0022] Automatic lubrication and reduced downtime directly lead to increased productivity. Equipment can continue to operate longer and reduce maintenance time.

[0023] 4. Lubrication uniformity:

[0024] Compared with manual lubrication, this automatic lubrication method can apply lubricant more evenly to where it is needed, helping to reduce the problem of localized excessive wear.

[0025] 5. Reduce maintenance costs:

[0026] The need for manual lubrication is reduced, reducing maintenance costs, including labor costs and time costs.

[0027] 6. Extend equipment life:

[0028] Timely and uniform lubrication can effectively reduce equipment wear and extend the service life of key components such as pulleys and shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment;

[0030] Figure 2 for Figure 1 The structural diagram after deleting the frame;

[0031] Figure 3 for Figure 1 Left view of .

[0032] Figure numerals: 1, frame; 2, pulley; 3, positioning shaft; 4, fixing rod; 5, mounting seat; 6, hook body; 7, thread; 8, fixing bolt; 9, connecting spring; 10, driving plate; 11, driving rod; 12, sponge strip; 13, fixing block; 14, reset spring. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the description of the present utility model, "multiple" means two or more than two, unless otherwise clearly specified and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0037] like Figure 1-Figure 3 As shown, a self-lubricating crane hook comprises two frames 1. At least two pulleys 2 are arranged between the two frames 1. A positioning shaft 3 is connected between the pulley 2 and the two frames 1. The positioning shaft 3 is fixedly connected to the frames 1. The pulley 2 is connected to the positioning shaft 3 by a bearing. A steel wire rope can be wound around the pulley 2 to connect the hook to the crane, and the hook can drive the heavy object to be lifted or moved after the heavy object is loaded.

[0038] Correspondingly, a fixing rod 4 is fixedly connected between the bottoms of the two frames 1. The fixing rod 4 is fixed by bolts. In the middle of the two frames 1, a mounting seat 5 is fixedly provided on the fixing rod 4, and a hook body 6 is inserted into the mounting seat 5. A thread 7 is provided on the top of the hook body 6. A fixing bolt 8 is connected to the thread 7. Correspondingly, a connecting spring 9 is provided between the fixing bolt 8 and the mounting seat 5. Under the above arrangement, the hook body 6 can be displaced a short distance in the longitudinal direction. When a heavy object is carried on the hook body 6, the hook body 6 moves downward under the action of gravity until the fixing bolt 8 abuts against the mounting seat 5, and the connecting spring 9 is compressed.

[0039] The top of the hook body 6 is bolted with a driving plate 10. The two ends of the driving plate 10 are fixedly connected with driving rods 11. The top of the driving rod 11 is fixedly connected with a sponge bar 12 filled with lubricating oil. The driving rod 11 passes through the sponge bar 12 and is matched with a fixing block 13. The fixing block 13 is fixedly connected to the frame body 1. The driving rod 11 is inserted into the fixing block 13. A return spring 14 is provided between the bottom of the fixing block 13 and the driving rod 11.

[0040] The two sponge strips 12 are respectively disposed between the positioning shaft 3 and the edge of the pulley 2 .

[0041] As mentioned above, when the hook body 6 carries a heavy object, the hook body 6 moves downward, so that the fixing bolt 8 abuts against the mounting seat 5. At this time, the hook body 6 moves downward, driving the driving plate 10 connected to the hook body 6 to move downward. The driving plate 10 drives the driving rod 11 to move downward. At this time, the driving rod 11 moves downward, driving the sponge strip 12 to abut against the edge of the positioning shaft 3 and the pulley 2, so that the lubricating oil in the sponge strip 12 enters between the positioning shaft 3 and the pulley 2, achieving the effect of self-lubricating the hook.

[0042] After the weight is separated from the hook body 6 , the hook body 6 , the driving plate 10 , the driving rod 11 and the sponge strip 12 are reset under the reset action of the connecting spring 9 and the reset spring 14 .

[0043] The above-mentioned self-lubricating crane hook can realize automatic lubrication without manual intervention during operation, thereby reducing equipment downtime and improving work efficiency.

[0044] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A self-lubricating crane hook, characterized in that: include: Two frames (1); At least two pulleys (2) are arranged between the two frames (1); A positioning shaft (3) connecting the pulley (2) and the two frames (1); A fixing rod (4) fixedly connected between the bottoms of the two frames (1); A mounting seat (5) fixedly disposed on the fixing rod (4); A hook body (6) is inserted into the mounting seat (5); A driving plate (10) is bolted to the top of the hook body (6); A driving rod (11) fixedly connected to both ends of the driving plate (10); A sponge strip (12) is fixedly connected to the top of the driving rod (11) and is filled with lubricating oil; A fixed block (13) fixedly connected to the frame (1), wherein the driving rod (11) is inserted into the fixed block (13); Wherein, the sponge strip (12) is arranged between the positioning shaft (3) and the edge of the pulley (2).

2. The self-lubricating crane hook according to claim 1, characterized in that: The top of the hook body (6) is provided with a thread (7), and a fixing bolt (8) is connected to the thread (7).

3. The self-lubricating crane hook according to claim 2, characterized in that: A connecting spring (9) is provided between the fixing bolt (8) and the mounting seat (5).

4. The self-lubricating crane hook according to claim 1, characterized in that: A return spring (14) is provided between the bottom of the fixing block (13) and the driving rod (11).

5. The self-lubricating crane hook according to claim 1, characterized in that: The pulley (2) and the positioning shaft (3) are connected via a bearing.

6. The self-lubricating crane hook according to claim 1, characterized in that: The fixing rod (4) is fixed between the frames (1) by means of bolts.

7. The self-lubricating crane hook according to claim 1, characterized in that: The driving rod (11) passes through the sponge strip (12) and is provided in cooperation with the fixing block (13).