A drum positioning mechanism for a crane

Abstract

This utility model discloses a drum positioning mechanism for a crane, relating to the field of crane technology. It includes a base, a mounting frame, a knob, and a support shaft. The inner wall of the mounting frame is fixedly connected to both sides of the base, and the bottom of the support shaft is fixedly connected to the top of the knob. A fixing mechanism is provided under the mounting frame, and an auxiliary mechanism is provided on the base. The fixing mechanism is used to position the drum, and the auxiliary mechanism is used to adjust the wire rope. This utility model, by setting up the fixing mechanism and the auxiliary mechanism, solves the significant shortcomings of existing crane drum positioning mechanisms: wire rope winding requires manual pulling for positioning, increasing the burden and resulting in poor regularity; inflexible adjustment easily leads to safety hazards; inaccurate drum positioning causes easy shaking and displacement during operation; after winding, the positioning components are easily damaged due to inertial impact, shortening their lifespan; poor overall stability affects efficiency, poses safety hazards, and has poor performance.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a drum positioning mechanism for a crane. Background Technology

[0002] Cranes are essential equipment for freight handling in industries such as construction and road building. As a lifting tool, the crane drum is a vertically mounted drum that is rotated by human or mechanical power, and the horizontal winding of the flexible components completes the traction operation.

[0003] The existing drum positioning mechanism of a crane has obvious shortcomings: the wire rope winding requires manual pulling for positioning, which increases the burden and results in poor uniformity. The inflexible adjustment can easily lead to safety hazards; the drum positioning is inaccurate, and it is prone to shaking and displacement during operation. After winding, the positioning components are easily damaged due to inertial impact, which shortens their lifespan; the overall stability is poor, which affects efficiency, poses safety hazards, and has poor performance. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a drum positioning mechanism for a crane, which has the advantages of automatic and orderly winding of wire rope, flexible adjustment, accurate and stable drum positioning, and strong impact resistance. It solves the problems of existing mechanisms such as reliance on manual pulling, inconvenient adjustment, inaccurate positioning, susceptibility to inertial impact damage, and poor stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drum positioning mechanism for a crane, comprising a base, a mounting frame, a knob, and a support shaft, wherein the inner wall of the mounting frame is fixedly connected to both sides of the base, the bottom of the support shaft is fixedly connected to the top of the knob, a fixing mechanism is provided under the mounting frame, and an auxiliary mechanism is provided on the base; The fixing mechanism is used to position the roll; The auxiliary mechanism is used to adjust the wire rope.

[0006] In a preferred embodiment of this utility model, the fixing mechanism includes a sector gear, a rack plate, a first gear, a reciprocating screw, a sleeve, and an upper clamping block. The left side surface of the sector gear is meshed with the right side surface of the rack plate. The top of the first gear is fixedly connected to the bottom of the reciprocating screw. The top of the sleeve is fixedly connected to the bottom of the upper clamping block. The top of the support shaft is fixedly connected to the top of the inner wall of the base.

[0007] In a preferred embodiment of this utility model, the auxiliary mechanism includes a drive motor, a half gear, a mating rack, a connecting block, an adjusting roller, and a guide rod. The output end of the drive motor is fixedly connected to the rear end of the half gear, the left side surface of the connecting block is fixedly connected to the right side surface of the mating rack, the rear end of the adjusting roller is fixedly connected to the front end of the connecting block, and the bottom of the guide rod is fixedly connected to the top of the base.

[0008] As a preferred embodiment of this utility model, a telescopic rod is provided at the top of the inner wall of the mounting frame, a lower clamping block is provided at the output end of the telescopic rod, the output end of the telescopic rod is fixedly connected to the top of the lower clamping block, and the top of the telescopic rod is fixedly connected to the top of the inner wall of the mounting frame.

[0009] As a preferred embodiment of this utility model, a first spring is provided on the surface of the telescopic rod, with both ends of the first spring fixedly connected to the surface of the telescopic rod, and the output end of the knob is fixedly connected to the top of the sector gear.

[0010] In a preferred embodiment of this invention, the inner wall of the connecting block is slidably connected to the outer wall of the guide rod, the surface of the reciprocating screw is threadedly connected to the inner wall of the sleeve, and the right side surface of the half gear is meshed with the left side surface of the mating rack.

[0011] As a preferred embodiment of this invention, a second spring is provided on the surface of the guide rod, with both ends of the second spring fixedly connected to the surface of the guide rod, and the right side surface of the first gear meshing with the left side surface of the rack plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up a fixing mechanism and an auxiliary mechanism, this utility model solves the problems of existing mechanisms relying on manual pulling, inconvenient adjustment, inaccurate positioning, easy damage from inertial impact, and poor stability. It achieves the effects of automatic and orderly winding of wire rope, flexible adjustment, accurate and stable drum positioning, and strong impact resistance.

[0013] 2. This utility model, by setting up a fixing mechanism, utilizes the meshing transmission of a sector gear and a first gear, and in conjunction with a reciprocating screw to drive the sleeve and upper clamping block to move, combined with the elastic force of the first spring, to achieve precise positioning and stable clamping of the drum, which can offset inertial impact, avoid displacement, and extend the service life of the components.

[0014] 3. This utility model, by setting up an auxiliary mechanism, uses a drive motor to drive a half gear to mesh with a matching rack, so that the connecting block moves along the guide rod. The adjusting roller, in conjunction with the second spring, flexibly adjusts the wire rope, thereby achieving automatic and orderly winding, reducing manual operation and lowering safety hazards. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the fixing mechanism provided in an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of the auxiliary mechanism provided in an embodiment of the present utility model; Figure 4 This is provided by the embodiment of the present utility model. Figure 2 Enlarged 3D structural diagram at point A.

[0016] In the diagram: 1. Base; 2. Mounting bracket; 3. Knob; 4. Support shaft; 5. Fixing mechanism; 501. Sector gear; 502. Rack plate; 503. First gear; 504. Reciprocating screw; 505. Sleeve; 506. Upper clamping block; 6. Auxiliary mechanism; 601. Drive motor; 602. Half gear; 603. Matching rack; 604. Connecting block; 605. Adjusting roller; 606. Guide rod; 7. Telescopic rod; 8. Lower clamping block; 9. First spring; 10. Second spring. Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Example 1 Reference Figure 1-4This is the first embodiment of the present utility model, which provides a base 1, a mounting bracket 2, a knob 3 and a support shaft 4. The inner wall of the mounting bracket 2 is fixedly connected to the two sides of the base 1, the bottom of the support shaft 4 is fixedly connected to the top of the knob 3, a fixing mechanism 5 is provided under the mounting bracket 2, and an auxiliary mechanism 6 is provided on the base 1. The fixing mechanism 5 is used to position the drum; Auxiliary mechanism 6 is used to adjust the wire rope.

[0022] Specifically, the base 1 provides stable support, the mounting bracket 2 builds a sturdy frame for each component, the knob 3 and support shaft 4 facilitate operation and control, the fixing mechanism 5 can accurately position the drum to prevent the drum from shifting during operation and ensure lifting accuracy and safety; the auxiliary mechanism 6 can flexibly adjust the wire rope to adapt to different lifting needs and reduce rope wear. The overall coordination makes lifting operations more accurate and safe, and improves the practicality and service life of the equipment.

[0023] Furthermore, the base 1 serves as the basic supporting structure, and the mounting frame 2 provides stable support for each component. When the knob 3 is turned, the support shaft 4 at its top rotates accordingly, thereby driving the fixing mechanism 5 to operate. Under the action of power, the fixing mechanism 5 accurately positions the drum to prevent the drum from shifting or rotating during lifting operations. At the same time, the auxiliary mechanism 6 adjusts the length and tension of the wire rope to adapt to different lifting scenarios, achieving stable positioning of the drum and flexible adjustment of the wire rope, ensuring accurate and safe lifting operations.

[0024] Example 2 The second embodiment of this utility model provides a fixing mechanism 5 including a sector gear 501, a rack plate 502, a first gear 503, a reciprocating screw 504, a sleeve 505, and an upper clamping block 506. The left side surface of the sector gear 501 is meshed with the right side surface of the rack plate 502. The top of the first gear 503 is fixedly connected to the bottom of the reciprocating screw 504. The top of the sleeve 505 is fixedly connected to the bottom of the upper clamping block 506. The top of the support shaft 4 is fixedly connected to the top of the inner wall of the base 1. A telescopic rod 7 is provided on the top of the inner wall of the mounting frame 2. A lower clamping block 8 is provided at the output end of the telescopic rod 7. The output end of the telescopic rod 7 is fixedly connected to the top of the lower clamping block 8. The top of the telescopic rod 7 is fixedly connected to the top of the inner wall of the mounting frame 2. A first spring 9 is provided on the surface of the telescopic rod 7. The two ends of the first spring 9 are fixedly connected to the surface of the telescopic rod 7. The output end of the knob 3 is fixedly connected to the top of the sector gear 501.

[0025] Specifically, the knob 3 drives the sector gear 501 to mesh with the rack plate 502, which in turn drives the reciprocating screw 504 to rotate, causing the sleeve 505 to move the upper clamping block 506. Combined with the telescopic rod 7, the first spring 9 and the lower clamping block 8 on the mounting frame 2, the drum can be stably clamped. This mechanism can accurately position the drum, avoid drum shaking or displacement during lifting, ensure operational accuracy and safety, is easy to operate and highly adaptable, and improves the stability and reliability of positioning.

[0026] Furthermore, when the knob 3 is turned, its output end drives the sector gear 501 to rotate. The sector gear 501 meshes with the rack plate 502, causing the rack plate 502 to move and drive the first gear 503 to rotate. This causes the reciprocating screw 504 at the top of the first gear 503 to rotate synchronously. When the reciprocating screw 504 rotates, it drives the sleeve 505 and the upper clamping block 506 at the top to move up and down. At the same time, the telescopic rod 7 at the top of the inner wall of the mounting frame 2, under the action of the first spring 9, drives the lower clamping block 8 to maintain stable pressure. Through the movement of the upper clamping block 506 and the cooperation of the lower clamping block 8, the drum is clamped and positioned, ensuring that the drum position is stable during lifting operations and avoiding displacement.

[0027] Example 3 The third embodiment of this utility model provides an auxiliary mechanism 6 including a drive motor 601, a half gear 602, a mating rack 603, a connecting block 604, an adjusting roller 605, and a guide rod 606. The output end of the drive motor 601 is fixedly connected to the rear end of the half gear 602. The left side surface of the connecting block 604 is fixedly connected to the right side surface of the mating rack 603. The rear end of the adjusting roller 605 is fixedly connected to the front end of the connecting block 604. The bottom of the guide rod 606 is fixedly connected to the top of the base 1. The inner wall of the connecting block 604 is slidably connected to the outer wall of the guide rod 606. The surface of the reciprocating screw 504 is threadedly connected to the inner wall of the sleeve 505. The right side surface of the half gear 602 is meshed with the left side surface of the mating rack 603. A second spring 10 is provided on the surface of the guide rod 606. The two ends of the second spring 10 are fixedly connected to the surface of the guide rod 606. The right side surface of the first gear 503 is meshed with the left side surface of the rack plate 502.

[0028] Specifically, the drive motor 601 drives the half gear 602 to mesh with the rack 603, which in turn drives the connecting block 604 to move along the guide rod 606. This causes the adjusting roller 605 to adjust its position accordingly. Combined with the elasticity of the second spring 10, the tension and direction of the wire rope can be flexibly adjusted. This allows the wire rope to adapt to different working conditions, reduce rope wear, and avoid safety hazards caused by slackness or excessive tightness. At the same time, it works in conjunction with the fixing mechanism 5 to improve the overall operational stability and further enhance the applicability and safety of the equipment.

[0029] Furthermore, after the drive motor 601 starts, its output end drives the half gear 602 to rotate. The half gear 602 meshes with the mating rack 603, causing the mating rack 603 to drive the connecting block 604 to slide along the guide rod 606. When the connecting block 604 moves, the adjusting roller 605 at its front end adjusts its position synchronously, compressing or relaxing the wire rope. At the same time, the second spring 10 on the surface of the guide rod 606 undergoes elastic deformation as the connecting block 604 moves. Through the elastic force, the connecting block 604 resets and buffers, making the adjustment of the wire rope by the adjusting roller 605 more stable. By changing the position of the adjusting roller 605, the tension and direction of the wire rope can be flexibly controlled, ensuring the stability of the wire rope during the lifting process. This, in conjunction with the fixing mechanism 5, improves the overall operational reliability.

[0030] Working principle: In use, firstly, start knob 3. When knob 3 is turned, its output end drives the sector gear 501 to rotate. The sector gear 501 meshes with the rack plate 502, causing the rack plate 502 to move and drive the first gear 503 to rotate. This causes the reciprocating screw 504 at the top of the first gear 503 to rotate synchronously. When the reciprocating screw 504 rotates, it drives the sleeve 505 and the upper clamping block 506 at the top to move up and down. At the same time, the telescopic rod 7 at the top of the inner wall of the mounting frame 2, under the action of the first spring 9, drives the lower clamping block 8 to maintain stable pressure. Through the movement of the upper clamping block 506 and the cooperation of the lower clamping block 8, the drum is clamped and positioned, ensuring that the drum position is stable during lifting operations and avoiding displacement. After the drum is positioned and fixed, then start the drive motor 6. 01. After the drive motor 601 starts, its output end drives the half gear 602 to rotate. The half gear 602 meshes with the matching rack 603, causing the matching rack 603 to drive the connecting block 604 to slide along the guide rod 606. When the connecting block 604 moves, the adjusting roller 605 at its front end adjusts its position synchronously, compressing or relaxing the wire rope. At the same time, the second spring 10 on the surface of the guide rod 606 undergoes elastic deformation as the connecting block 604 moves. Through the elastic force, the connecting block 604 is reset and buffered, making the adjustment of the wire rope by the adjusting roller 605 more stable. By changing the position of the adjusting roller 605, the tension and direction of the wire rope can be flexibly controlled, ensuring the stability of the wire rope during the lifting process. In conjunction with the fixed mechanism 5, it improves the overall operational reliability.

[0031] In summary, the combination of the fixing mechanism and the auxiliary mechanism achieves precise positioning and stable clamping of the drum, while also allowing for flexible adjustment of the wire rope tension and direction. This ensures stable drum position and suitable wire rope condition during lifting operations, effectively improving the safety and accuracy of the operation.

[0032] The base and mounting bracket used in this application can be additionally equipped with protective measures that are 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.

[0033] It should be noted that the drive motor, knob, support shaft and adjusting roller 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 and other methods of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] 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 proportion 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 reordered 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.

[0035] 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.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled 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.

[0037] 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 drum positioning mechanism for a crane, comprising a base (1), a mounting bracket (2), a knob (3), and a support shaft (4), wherein the inner wall of the mounting bracket (2) is fixedly connected to both sides of the base (1), and the bottom of the support shaft (4) is fixedly connected to the top of the knob (3), characterized in that: A fixing mechanism (5) is provided under the mounting bracket (2), and an auxiliary mechanism (6) is provided on the base (1). The fixing mechanism (5) is used to position the drum; The auxiliary mechanism (6) is used to adjust the wire rope.

2. The drum positioning mechanism for a crane according to claim 1, characterized in that: The fixing mechanism (5) includes a sector gear (501), a rack plate (502), a first gear (503), a reciprocating screw (504), a sleeve (505), and an upper clamping block (506). The left side surface of the sector gear (501) is meshed with the right side surface of the rack plate (502). The top of the first gear (503) is fixedly connected to the bottom of the reciprocating screw (504). The top of the sleeve (505) is fixedly connected to the bottom of the upper clamping block (506). The top of the support shaft (4) is fixedly connected to the top of the inner wall of the base (1).

3. The drum positioning mechanism for a crane according to claim 2, characterized in that: The auxiliary mechanism (6) includes a drive motor (601), a half gear (602), a mating rack (603), a connecting block (604), an adjusting roller (605), and a guide rod (606). The output end of the drive motor (601) is fixedly connected to the rear end of the half gear (602). The left side surface of the connecting block (604) is fixedly connected to the right side surface of the mating rack (603). The rear end of the adjusting roller (605) is fixedly connected to the front end of the connecting block (604). The bottom of the guide rod (606) is fixedly connected to the top of the base (1).

4. The drum positioning mechanism for a crane according to claim 3, characterized in that: The top of the inner wall of the mounting frame (2) is provided with a telescopic rod (7), and the output end of the telescopic rod (7) is provided with a lower clamping block (8). The output end of the telescopic rod (7) is fixedly connected to the top of the lower clamping block (8), and the top of the telescopic rod (7) is fixedly connected to the top of the inner wall of the mounting frame (2).

5. A drum positioning mechanism for a crane according to claim 4, characterized in that: The telescopic rod (7) is provided with a first spring (9) on its surface. The two ends of the first spring (9) are fixedly connected to the surface of the telescopic rod (7), and the output end of the knob (3) is fixedly connected to the top of the sector gear (501).

6. The drum positioning mechanism for a crane according to claim 5, characterized in that: The inner wall of the connecting block (604) is slidably connected to the outer wall of the guide rod (606), the surface of the reciprocating screw (504) is threadedly connected to the inner wall of the sleeve (505), and the right side surface of the half gear (602) is meshed with the left side surface of the mating rack (603).

7. The drum positioning mechanism for a crane according to claim 3, characterized in that: The guide rod (606) is provided with a second spring (10), and the two ends of the second spring (10) are fixedly connected to the surface of the guide rod (606). The right side surface of the first gear (503) is meshed with the left side surface of the rack plate (502).

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