A kind of broken ore double-beam head-and-dog hoist prevents the device of falling off

Abstract

The utility model discloses a kind of broken ore double-beam head-and-back use hook anti-drop device, it is related to hook anti-drop device technical field, including hook main part, the sliding arc groove being opened in the both sides of hook main part, the anti-drop blocking half ring one and the anti-drop blocking half ring two slidingly connected in the inner wall of two groups of sliding arc groove, the auxiliary locking assembly being set to the outer wall of hook main part, the auxiliary locking assembly is used to lock the anti-drop blocking half ring one and the anti-drop blocking half ring two to make both with the detachable fixed connection of hook main part. The utility model is closed by the opening of hook main part by the anti-drop blocking half ring one and the anti-drop blocking half ring two along sliding arc groove sliding, cooperate the locking structure of threaded insertion rod and threaded positioning hole, form closed ring, can effectively prevent steel wire rope from detaching from hook due to shaking, vibration etc. in the process of lifting, solve the problem that traditional hook anti-drop structure is insufficient in reliability, especially applicable to broken ore scene frequently lifting, the environment of complex working condition.

Description

Technical Field

[0001] This utility model relates to the technical field of hook anti-detachment devices, specifically a hook anti-detachment device for a double-beam overhead crane used in ore crushing. Background Technology

[0002] In ore crushing operations, double-girder overhead cranes are critical lifting equipment, and the safety of their hooks directly affects work efficiency and personnel safety. Traditional double-girder overhead crane hook anti-derailment structures mostly employ fixed baffles or simple hook designs, which have the following problems:

[0003] The fixed baffle cannot be removed. When the baffle is worn or the diameter of the wire rope changes, it is difficult to adapt. After long-term use, the baffle is prone to loosening due to vibration, which leads to the failure of the anti-detachment function.

[0004] The locking reliability of the simple hook structure is insufficient. When the wire rope is shaken and impacted during the lifting process, the hook is easy to fall off, which poses a safety hazard of the wire rope slipping.

[0005] Some anti-detachment structures lack auxiliary positioning design, requiring repeated adjustment of the baffle position when loading and unloading wire ropes, which is cumbersome and affects work efficiency. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a hook anti-detachment device for a double-beam overhead crane used for ore crushing. This device guides the anti-detachment blocking semi-ring one and anti-detachment blocking semi-ring two to slide and close the opening via a sliding arc groove. Combined with auxiliary locking components (threaded positioning cylinder, threaded rod, etc.), it achieves detachable locking. Furthermore, it incorporates auxiliary structures such as magnetic blocks and buffer rods, balancing anti-detachment reliability, ease of operation, and convenient maintenance. This effectively solves the problems of traditional anti-detachment structures, such as non-adjustable fixation, unreliable locking, and difficult maintenance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hook anti-detachment device for a double-beam ore crushing crane, comprising a hook body;

[0008] Sliding arc grooves are formed on both sides of the hook body;

[0009] Anti-detachment blocking half-ring one and anti-detachment blocking half-ring two are slidably connected to the inner walls of two sets of sliding arc grooves;

[0010] An auxiliary locking assembly is installed on the outer wall of the hook body. The auxiliary locking assembly is used to lock the first anti-detachment blocking half ring and the second anti-detachment blocking half ring so that the two are detachably fixedly connected to the hook body.

[0011] As a preferred embodiment of this utility model, the auxiliary locking component includes a threaded positioning cylinder, the inner wall of which is threadedly connected to a threaded rod, the inner wall of the sliding arc groove is provided with a threaded positioning hole that mates with the threaded rod, the threaded rod movably passes through one end of the anti-detachment blocking half-ring and is threadedly connected to the inner wall of the threaded positioning hole, and a receiving insertion hole is provided on the side of the anti-detachment blocking half-ring near one end.

[0012] As a preferred embodiment of this invention, the inner wall of the receiving hole is movably connected to the outer wall of the threaded rod.

[0013] As a preferred embodiment of this utility model, magnetic blocks are fixedly connected to the sides of the anti-detachment blocking half-ring one and the anti-detachment blocking half-ring two that are close to each other, and the magnetic blocks are magnetically attracted to the inner wall of the sliding arc groove.

[0014] In a preferred embodiment of this utility model, a toggle cylinder is fixedly connected to one side of the anti-detachment blocking semi-ring near one end, a buffer rod is movably connected to the inner wall of the toggle cylinder, a return spring is fixedly connected to one end of the buffer rod, and the end of the return spring away from the buffer rod is fixedly connected to the inner wall of the toggle cylinder. An auxiliary positioning hole for docking with the buffer rod is opened on the outer wall of the anti-detachment blocking semi-ring, and an auxiliary positioning groove for docking with the buffer rod is opened on the inner wall of the sliding arc groove.

[0015] As a preferred embodiment of this utility model, the buffer plug rod movably passes through the auxiliary positioning plug hole, and one end is movably plugged into the inner wall of the auxiliary positioning groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses two anti-detachment blocking semi-rings to slide along the sliding arc groove to close the opening of the hook body. Combined with the locking structure of the threaded rod and the threaded positioning hole, a closed ring is formed. This can effectively prevent the wire rope from detaching from the hook due to shaking or vibration during the lifting process. It solves the problem of insufficient reliability of traditional hook anti-detachment structures and is especially suitable for environments with frequent lifting and complex working conditions in crushing mining scenarios.

[0018] 2. This utility model utilizes the magnetic adsorption of the magnetic blocks to temporarily fix the positions of the first and second anti-detachment blocking half-rings in the non-locked state, preventing them from shaking randomly; the auxiliary positioning of the buffer rod and the auxiliary positioning groove can quickly align the receiving hole and the threaded positioning hole, simplifying the locking operation and improving loading and unloading efficiency.

[0019] 3. This utility model achieves detachable fixation between the anti-detachment blocking half-ring one and the anti-detachment blocking half-ring two and the hook body through threaded rods. When the parts are worn or damaged, they can be replaced individually without replacing the entire hook, thus reducing maintenance costs. The sliding fit structure between the sliding arc groove and the anti-detachment blocking half-ring also facilitates daily cleaning and lubrication, extending the service life of the device.

[0020] 4. This utility model uses multiple mechanisms, including the threaded connection between the threaded positioning cylinder and the threaded insertion rod, the magnetic adsorption of the magnetic block, and the elastic buffer of the reset spring, to ensure that the anti-detachment structure remains stable under the vibration and impact environment of the crushing ore scene, avoiding accidental unlocking and further improving reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the locked state structure of the first and second anti-detachment blocking semi-rings of this utility model.

[0023] Figure 3 This is a schematic diagram of the main structure of the hook of this utility model;

[0024] Figure 4 This is a schematic diagram of the anti-detachment blocking semi-ring structure of this utility model.

[0025] In the diagram: 1. Hook body; 2. Anti-detachment blocking half-ring one; 3. Anti-detachment blocking half-ring two; 4. Sliding arc groove; 5. Threaded positioning cylinder; 6. Threaded insertion rod; 7. Receiving insertion hole; 8. Magnetic block; 9. Threaded positioning hole; 10. Auxiliary positioning groove; 11. Actuating cylinder; 12. Buffer insertion rod; 13. Return spring; 14. Auxiliary positioning insertion hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a hook anti-detachment device for a double-beam ore crushing crane, including a hook body 1;

[0032] Sliding arc grooves 4 are formed on both sides of the hook body 1;

[0033] Anti-detachment blocking half-ring 1 2 and anti-detachment blocking half-ring 2 3 are slidably connected to the inner walls of the two sets of sliding arc grooves 4;

[0034] An auxiliary locking assembly is installed on the outer wall of the hook body 1. The auxiliary locking assembly is used to lock the anti-detachment blocking half ring 1 2 and the anti-detachment blocking half ring 2 3 so that the two are detachably fixedly connected to the hook body 1.

[0035] Specifically, by sliding the anti-detachment blocking half-ring 1 2 and anti-detachment blocking half-ring 2 3 along the sliding arc groove 4 to close the opening of the hook body 1, and in conjunction with the locking structure of the threaded rod 6 and the threaded positioning hole 9, a closed ring is formed, which can effectively prevent the wire rope from detaching from the hook due to swaying, vibration, etc. during the lifting process. This solves the problem of insufficient reliability of the traditional hook anti-detachment structure, and is especially suitable for the environment of frequent lifting and complex working conditions in crushing mining scenarios.

[0036] Example 2

[0037] The second embodiment of this utility model provides a technical solution: the auxiliary locking component includes a threaded positioning cylinder 5, the inner wall of the threaded positioning cylinder 5 is threadedly connected to a threaded rod 6, the inner wall of the sliding arc groove 4 is provided with a threaded positioning hole 9 that mates with the threaded rod 6, the threaded rod 6 movably passes through one end of the anti-detachment blocking half ring 2 and is threadedly connected to the inner wall of the threaded positioning hole 9, and a receiving insertion hole 7 is provided on the side of the anti-detachment blocking half ring 2 near one end.

[0038] The inner wall of the receiving hole 7 is movably connected to the outer wall of the threaded rod 6.

[0039] Specifically, the anti-detachment blocking half-ring 1 2 and anti-detachment blocking half-ring 2 3 are detachably fixed to the hook body 1 through the threaded rod 6. When the parts are worn or damaged, they can be replaced individually without replacing the entire hook, thus reducing maintenance costs. The sliding groove 4 and the sliding fit structure of the anti-detachment blocking half-ring also facilitate daily cleaning and lubrication, extending the service life of the device.

[0040] Example 3

[0041] The third embodiment of this utility model provides a technical solution: Magnetic blocks 8 are fixedly connected to the sides of the anti-detachment blocking semi-ring 2 and the anti-detachment blocking semi-ring 3 that are close to each other. The magnetic blocks 8 are magnetically attracted to the inner wall of the sliding arc groove 4. A toggle cylinder 11 is fixedly connected to one side of the anti-detachment blocking semi-ring 2. A buffer rod 12 is movably connected to the inner wall of the toggle cylinder 11. A return spring 13 is fixedly connected to one end of the buffer rod 12. The end of the return spring 13 away from the buffer rod 12 is fixedly connected to the inner wall of the toggle cylinder 11. An auxiliary positioning hole 14 for docking with the buffer rod 12 is opened on the outer wall of the anti-detachment blocking semi-ring 2. An auxiliary positioning groove 10 for docking with the buffer rod 12 is opened on the inner wall of the sliding arc groove 4. The buffer rod 12 movably passes through the auxiliary positioning hole 14, and one end is movably inserted into the inner wall of the auxiliary positioning groove 10.

[0042] Specifically, by using the magnetic attraction of the magnetic block 8, the positions of the anti-detachment blocking half ring 1 2 and the anti-detachment blocking half ring 2 3 can be temporarily fixed in the non-locked state to prevent them from shaking randomly; the auxiliary positioning of the buffer rod 12 and the auxiliary positioning groove 10 can quickly align the receiving hole 7 and the threaded positioning hole 9, simplify the locking operation and improve loading and unloading efficiency.

[0043] Example 4

[0044] The fourth embodiment of this utility model provides a technical solution: the hook body 1, the first anti-detachment blocking half ring 2, and the second anti-detachment blocking half ring 3 are made of 40CrNiMoA high-strength alloy steel. After quenching and tempering, the tensile strength of this material can reach more than 1000MPa. It has excellent impact toughness and wear resistance, and can withstand the heavy impact of frequent lifting in ore crushing operations, meeting the requirements of long-term high-intensity use.

[0045] Threaded positioning cylinder 5 and threaded insertion rod 6: Made of 316 stainless steel, which contains molybdenum to significantly improve corrosion resistance. It can effectively resist rust in the dusty and humid environment of the crushing workshop, ensuring the stability of the threaded connection and avoiding jamming or disassembly difficulties caused by rust.

[0046] Magnetic block 8: It adopts N52 type neodymium iron boron permanent magnet. Its surface is treated with nickel copper nickel multi-layer electroplating. The magnetic field strength can reach more than 1.4T. It can still provide stable adsorption force under vibration conditions, ensuring the positional stability of the anti-detachment blocking half ring in the non-locked state.

[0047] Return spring 13: Made of 60Si2MnA spring steel, after isothermal quenching, the elastic limit reaches 800MPa, the working temperature range is -40℃ to 150℃, and it can withstand ≥100,000 cycles of expansion and contraction, meeting the fatigue strength requirements of frequent operation.

[0048] Buffer rod 12: Made of 2Cr13 martensitic stainless steel, with a polished surface and a hardness of HRC40-45, ensuring smooth sliding fit with the auxiliary positioning groove 10, while also having good wear resistance.

[0049] Sliding arc groove 4: The cross-section is a T-shaped structure.

[0050] Working principle:

[0051] The working principle of the anti-detachment device for the hook of the double-beam ore crushing crane is as follows:

[0052] When the hook body 1 is used to attach and lift the wire rope, the actuating cylinder 11 on the anti-detachment blocking half ring 12 is moved to drive the anti-detachment blocking half ring 12 to slide on the inner wall of the sliding arc groove 4 on both sides of the hook body 1. At the same time, the anti-detachment blocking half ring 23 is operated to slide synchronously along the sliding arc groove 4, so that the two move closer to the opening of the hook body 1 and close the opening. At this time, the magnetic block 8 on the side of the anti-detachment blocking half ring 12 and the anti-detachment blocking half ring 23 are magnetically attracted to the inner wall of the sliding arc groove 4, which initially restricts the displacement of the two.

[0053] When the anti-detachment blocking half-ring 12 and the anti-detachment blocking half-ring 23 are rotated into position, the receiving insertion hole 7 on the anti-detachment blocking half-ring 12 is aligned with the threaded positioning hole 9 on the inner wall of the sliding arc groove 4; at the same time, the buffer insertion rod 12 inside the anti-detachment blocking half-ring 12 is ejected from the auxiliary positioning insertion hole 14 and inserted into the auxiliary positioning groove 10 on the inner wall of the sliding arc groove 4 under the elastic force of the return spring 13, so as to achieve temporary auxiliary positioning and facilitate subsequent locking operation (because the insertion end of the buffer insertion rod 12 is hemispherical, it can be disengaged from the auxiliary positioning groove 10 when the anti-detachment blocking half-ring 12 is rotated with force later).

[0054] Subsequently, the threaded rod 6 is taken out from the threaded positioning cylinder 5, inserted into the receiving hole 7 and through the anti-detachment blocking half ring 2 until the threaded rod 6 is threadedly connected to the inner wall of the threaded positioning hole 9. After being rotated and tightened, the anti-detachment blocking half ring 2 and the anti-detachment blocking half ring 3 are locked and form a detachable fixed connection with the hook body 1, together forming a closed ring to prevent the wire rope from falling out of the opening of the hook body 1.

[0055] When there is no need to close the opening, rotate the threaded insert 6 in the opposite direction to disengage it from the threaded positioning hole 9 and put it back into the threaded positioning cylinder 5. At this time, the magnetic block 8 is still attached to the inner wall of the sliding arc groove 4, which can maintain the temporary position of the anti-disengagement blocking half ring 1 2 and the anti-disengagement blocking half ring 2 3, but does not affect the rotation of the two along the sliding arc groove 4, which is convenient for the next operation.

[0056] In summary: the anti-detachment blocking half-ring 1 2 and anti-detachment blocking half-ring 2 3 are detachably fixed to the hook body 1 through the threaded rod 6. When the parts are worn or damaged, they can be replaced individually without replacing the entire hook, thus reducing maintenance costs. The sliding arc groove 4 and the sliding fit structure of the anti-detachment blocking half-ring also facilitate daily cleaning and lubrication, extending the service life of the device.

[0057] The threaded positioning cylinder, return spring, threaded insert rod, and magnetic block used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0058] It should be noted that the threaded positioning cylinder, return spring, threaded insert rod, and magnetic block are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the devices, as well as the materials of each accessory and the selection of various parameters, are all common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hook anti-detachment device for a double-beam overhead crane used for ore crushing, characterized in that: Including the hook body (1); Sliding arc grooves (4) are formed on both sides of the hook body (1); Anti-detachment blocking half-ring one (2) and anti-detachment blocking half-ring two (3) are slidably connected to the inner walls of the two sets of sliding arc grooves (4); An auxiliary locking assembly is provided on the outer wall of the hook body (1). The auxiliary locking assembly is used to lock the first anti-detachment blocking half ring (2) and the second anti-detachment blocking half ring (3) so that the two are detachably fixedly connected to the hook body (1).

2. The anti-detachment device for the hook of a double-beam ore crushing crane according to claim 1, characterized in that: The auxiliary locking component includes a threaded positioning cylinder (5), the inner wall of which is threadedly connected to a threaded rod (6), the inner wall of the sliding arc groove (4) is provided with a threaded positioning hole (9) that mates with the threaded rod (6), the threaded rod (6) movably passes through one end of the anti-detachment blocking half ring (2) and is threadedly connected to the inner wall of the threaded positioning hole (9), and a receiving insertion hole (7) is provided on the side of the anti-detachment blocking half ring (2) near one end.

3. The anti-detachment device for the hook of a double-beam overhead crane for ore crushing according to claim 2, characterized in that: The inner wall of the receiving hole (7) is movably connected to the outer wall of the threaded rod (6).

4. The anti-detachment device for the hook of a double-beam ore crushing crane according to claim 1, characterized in that: The anti-detachment blocking half-ring one (2) and the anti-detachment blocking half-ring two (3) are fixedly connected to a magnetic block (8) on the side close to each other. The magnetic block (8) is magnetically attracted to the inner wall of the sliding arc groove (4).

5. The anti-detachment device for the hook of a double-beam ore crushing crane according to claim 1, characterized in that: The anti-detachment blocking half-ring (2) is fixedly connected to a toggle cylinder (11) on one side near one end. A buffer rod (12) is movably connected to the inner wall of the toggle cylinder (11). A return spring (13) is fixedly connected to one end of the buffer rod (12). The end of the return spring (13) away from the buffer rod (12) is fixedly connected to the inner wall of the toggle cylinder (11). An auxiliary positioning hole (14) for docking with the buffer rod (12) is opened on the outer wall of the anti-detachment blocking half-ring (2). An auxiliary positioning groove (10) for docking with the buffer rod (12) is opened on the inner wall of the sliding arc groove (4).

6. The anti-detachment device for the hook of a double-beam ore crushing crane according to claim 5, characterized in that: The buffer rod (12) is movably inserted through the auxiliary positioning hole (14), and one end is movably inserted into the inner wall of the auxiliary positioning groove (10).

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