Crane deviation rectifying mechanism with warning structure

By introducing warning and protective structures into the crane's alignment mechanism, the problem of not being able to provide timely alerts when the support leg speed deviates has been solved. This improves the response speed and accuracy of the alignment mechanism, ensuring that staff can promptly repair and remove obstructions.

CN224147593UActive Publication Date: 2026-04-21JINHUA JIANGNAN HOISTING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA JIANGNAN HOISTING MASCH CO LTD
Filing Date
2025-06-10
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing crane alignment mechanism cannot promptly alert staff to perform maintenance when the speed deviation between the rigid and flexible support legs is large and exceeds the automatic adjustment range.

Method used

A crane correction mechanism with a warning structure was designed, comprising a warning mechanism and a protective structure. The warning mechanism alerts the operator through a buzzer and a warning light, while the protective structure removes obstructions through a motor-driven lead screw and scraper, ensuring the normal operation of the distance measuring sensor.

Benefits of technology

It enables timely alerts to staff for maintenance and removal of obstructions when the support leg speed deviates, thus improving the response speed and accuracy of the correction mechanism.

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Abstract

The utility model discloses a crane rectification mechanism with a warning structure, which comprises a base, an absolute value encoder and a distance measuring sensor, the inner bottom of the base is rotatably connected with a main wheel and an auxiliary wheel, one side of the main wheel is fixedly connected with power equipment, one side of the auxiliary wheel is fixedly connected with the absolute value encoder, and the distance measuring sensor is fixedly connected with the absolute value encoder. A distance measuring sensor is fixedly connected to the outer side of the base, a protection structure is installed at the front end of the outer side of the base, a warning mechanism is installed at the top end of the outer side of the base and comprises a control box, a buzzer and a warning lamp, the buzzer and the warning lamp are installed at the top end of the control box, and the control box is fixedly installed at the top end of the outer side of the base. According to the crane deviation rectifying mechanism with the warning mechanism, the warning mechanism is matched with the controller, the absolute value encoder and the distance measuring sensor, so that a worker is conveniently reminded, and through the protection structure, an obstacle on the front side of the base is conveniently blocked and pushed away, and interference of the obstacle to the distance measuring sensor is avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of crane correction mechanisms, specifically a crane correction mechanism with a warning structure. Background Technology

[0002] The working principle of a gantry crane is to use a motor to drive components such as a reducer, brake, and drum to achieve horizontal movement of the trolley and crane, as well as lifting and lowering of the hook, thereby completing the lifting and transport of goods. Its metal structure resembles a portal frame, with two support legs installed under the main beam. These two support legs are rigid and flexible, respectively. Therefore, during movement, the left and right support legs may move at different speeds, resulting in a certain deviation. Thus, a correction mechanism is needed to correct this deviation, ensuring the crane can move stably.

[0003] Referring to Chinese Patent Publication No. CN216737253U, published on June 14, 2022, an automatic crane alignment system is disclosed. This system includes a data acquisition device, a controller, and an adjustment device connected via communication. The data acquisition device comprises a front-to-back deviation data acquisition device and a left-to-right deviation data acquisition device. The front-to-back deviation data acquisition device includes an absolute encoder, which is installed on both the rigid and flexible support legs. The left-to-right deviation data acquisition device includes a range sensor group, which is installed on both the rigid and flexible support legs. The range sensor group includes multiple range sensors, which are collinearly arranged, with the line containing the sensors parallel to the track on which their respective support legs move. The adjustment device includes a frequency converter and a motor, with the frequency converter connected to the motor. Both the rigid and flexible support legs are equipped with motors. This invention provides an automatic crane alignment system that can replace manual alignment, improving the response speed and accuracy of alignment operations.

[0004] The existing technology has the following technical problems: When the speed deviation between the rigid support leg and the flexible support leg is large and exceeds the automatic adjustment deviation range, the existing crane correction mechanism does not easily remind the staff in a timely manner, thus making it inconvenient for the staff to carry out timely maintenance. Therefore, we propose a crane correction mechanism with a warning structure to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a crane correction mechanism with a warning structure to solve the problem mentioned in the background art that when the speed deviation between the rigid support leg and the flexible support leg is large and exceeds the automatic adjustment deviation range, it is not convenient for the staff to remind them in time, thus making it inconvenient for the staff to perform timely maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crane correction mechanism with a warning structure, comprising a base, an absolute encoder, and a distance sensor. A main wheel and a secondary wheel are rotatably connected to the bottom of the base. A power device is fixedly connected to one side of the main wheel, and an absolute encoder is fixedly connected to one side of the secondary wheel. A distance sensor is fixedly connected to the outside of the base. A protective structure is installed at the front end of the outside of the base, and a warning mechanism is installed at the top end of the outside of the base.

[0007] The warning mechanism includes a control box, a buzzer, and a warning light, with the buzzer and warning light mounted on the top of the control box.

[0008] Preferably, the control box is fixedly installed on the top outer side of the base.

[0009] Preferably, the protective structure includes a motor, a lead screw, and a scraper. The motor output end is fixedly connected to the lead screw, the lead screw is threadedly connected to the outside of the lead screw, the lead screw is rotatably connected inside the mounting housing, and a fixing plate is fixedly connected to the rear end of the outer side of the mounting housing.

[0010] Preferably, the scraper and the mounting shell form a left-right sliding structure.

[0011] Preferably, the fixing plate is fixedly connected to the outside of the base by screws.

[0012] Preferably, the top of the base is fixedly connected with a rigid support leg and a flexible support leg respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the crane correction mechanism with warning structure, in conjunction with the controller, absolute encoder and distance sensor, facilitates the reminder to the staff. The protective structure facilitates blocking and pushing away obstacles on the front side of the base, avoiding interference with the distance sensor.

[0014] 1. It is equipped with an alarm structure. The control box is connected to the absolute encoder and the distance sensor through the line, so as to receive the signals of the two components and transmit them to the controller, which responds to the buzzer and the warning light to remind the staff.

[0015] 2. A protective structure is provided. Obstacles are blocked by the mounting shell. The motor drives the lead screw to rotate, and the lead screw drives the scraper to move left and right, thereby pushing the obstructions in front of the mounting shell to the left and right sides to prevent the obstructions from accumulating and affecting the movement of the crane.

[0016] Furthermore, a fixing plate is fixedly connected to the rear end of the outer side of the mounting shell. The fixing plate is fixedly connected to the outer side of the base by screws, which makes the protective structure easy to disassemble and assemble, thereby facilitating its maintenance. Attached Figure Description

[0017] Figure 1 This is a top view sectional diagram of the present invention;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a side view sectional diagram of the first structure of this utility model;

[0020] Figure 4 This is a side view sectional diagram of the second structure of this utility model;

[0021] Figure 5 This is a front view structural diagram of the present utility model.

[0022] In the diagram: 1. Base; 2. Main wheel; 3. Sub-wheel; 4. Absolute encoder; 5. Distance sensor; 6. Warning mechanism; 601. Control box; 602. Buzzer; 603. Warning light; 7. Protective structure; 701. Motor; 702. Lead screw; 703. Scraper; 704. Mounting housing; 705. Fixing plate. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 The present invention provides the following technical solution:

[0025] Example 1: An absolute encoder 4 is fixedly connected to one side of each of the left and right auxiliary wheels 3. The two absolute encoders 4 collect the travel distance of their respective auxiliary wheels 3 and transmit this data to the controller (not shown). A distance sensor 5 is fixedly connected to the outside of the base 1. The distance sensors 5 on both sides are used to measure the distance between the left and right sides of the base 1. The offset is measured by the data obtained from the absolute encoders 4 and the distance sensors 5 and transmitted to the controller.

[0026] When the offset is within the range that can be automatically corrected, a power device is fixedly connected to one side of the main wheel 2. The controller automatically controls the rotation speed of the power device to adjust the moving speed of the base 1. The speed of the power device on the slower side can be slowed down, or the speed of the power device on the faster side can be increased, so that the base 1 on the slower side catches up with the base 1 on the faster side until the offset is cleared to zero.

[0027] When the offset is outside the range that can be automatically corrected, the controller automatically stops the power equipment and simultaneously transmits a signal to the warning mechanism 6. Figures 2-5 As shown, the warning mechanism 6 includes a control box 601, a buzzer 602, and a warning light 603. The control box 601 is fixedly installed on the top of the outer side of the base 1. The buzzer 602 and the warning light 603 are installed on the top of the control box 601, so that the buzzer 602 sounds and the warning light 603 flashes, thereby timely reminding the staff and facilitating the staff to carry out maintenance in a timely manner.

[0028] Example 2: Figures 1-5 As shown, the protective structure 7 includes a motor 701, a lead screw 702, a scraper 703, a mounting shell 704, and a fixing plate 705. The distance between the left and right bases 1 is relatively large, making it easy for obstructions to accumulate inside. The mounting shell 704 is installed on the front side of both bases 1 to block obstructions and prevent them from entering between the two bases 1. Simultaneously, the controller activates the lead screw 702, which is rotatably connected inside the mounting shell 704, starting the motor 701. The output end of the motor 701 is fixedly connected to the lead screw 702, causing the motor 701 to drive... The lead screw 702 rotates, and a scraper 703 is threadedly connected to the outside of the lead screw 702. The lead screw 702 drives the scraper 703 to move, pushing the obstructions accumulated on the front side of the mounting housing 704 to the left and right ends, thereby causing the obstructions to leave the front side of the mounting housing 704 and preventing the accumulated obstructions from affecting the movement of the crane. A fixing plate 705 is fixedly connected to the rear end of the outer side of the mounting housing 704. The fixing plate 705 is fixedly connected to the outside of the base 1 by screws, making the protective structure 7 easy to disassemble and assemble, thereby facilitating the maintenance and repair of the structure.

[0029] The above completes a series of operations for the crane correction mechanism equipped with a warning structure. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A crane correction mechanism with a warning structure, comprising a base (1), an absolute encoder (4), and a distance sensor (5), characterized in that: The base (1) is rotatably connected to a main wheel (2) and a secondary wheel (3). A power device is fixedly connected to one side of the main wheel (2), and an absolute encoder (4) is fixedly connected to one side of the secondary wheel (3). A distance sensor (5) is fixedly connected to the outside of the base (1). A protective structure (7) is installed at the front end of the outside of the base (1), and a warning mechanism (6) is installed at the top of the outside of the base (1). The warning mechanism (6) includes a control box (601), a buzzer (602), and a warning light (603). The buzzer (602) and the warning light (603) are installed at the top of the control box (601).

2. A crane correction mechanism provided with a warning structure according to claim 1, characterized in that: The control box (601) is fixedly installed on the top outer side of the base (1).

3. A crane correction mechanism provided with a warning structure according to claim 1, characterized in that: The protective structure (7) includes a motor (701), a lead screw (702) and a scraper (703). The output end of the motor (701) is fixedly connected to the lead screw (702). The outside of the lead screw (702) is threadedly connected to the scraper (703). The lead screw (702) is rotatably connected inside the mounting shell (704). The rear end of the outer side of the mounting shell (704) is fixedly connected to a fixing plate (705).

4. A crane correction mechanism provided with a warning structure according to claim 3, characterized in that: The scraper (703) and the mounting shell (704) form a left-right sliding structure.

5. A crane correction mechanism provided with a warning structure according to claim 4, characterized in that: The fixing plate (705) is fixedly connected to the outside of the base (1) by screws.

6. A crane correction mechanism provided with a warning structure according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a rigid support leg and a flexible support leg respectively.

Citation Information

Patent Citations

  • Automatic deviation rectifying system of crane

    CN216737253U