Crane load deflection detection and early warning device

Abstract

The utility model discloses a crane load deflection detecting and early warning device which comprises a fixed box, a driving motor is fixedly installed on the top of the outer surface of the fixed box, a worm is fixedly installed at the output end of the driving motor, and the bottom of the worm is movably connected to the bottom of an inner cavity of the fixed box through a bearing. Through the arrangement of the contact plate, the fixed seat, the first spring, the U-shaped moving rod, the magnetic block, the magnetic control switch and the audible and visual alarm, when the deflection angle of the steel rope is too large in the loading process of the crane, an alarm prompt can be given to surrounding workers, so that the workers can timely discover and carry out corresponding safety treatment; through the arrangement of the horizontal sensor, the driving motor, the worm, the worm gear, the rotating shaft, the fixing box, the fixing plate, the transverse shaft, the fixing ring, the fixing seat, the U-shaped moving rod and the contact plate, personnel can conveniently and effectively adjust the contact plate horizontally in the angle adjusting process of the crane jib.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a crane load yaw detection and warning device. Background Technique

[0002] When a hoisting machine hoists a load, under the excitation of external loads and the self-excitation of slewing motion and luffing motion, the load will have obvious yaw and a long swing period. When the yaw angle is relatively large, it seriously affects the hoisting operation efficiency and safety. It is very necessary to detect the load yaw in real time during the operation of the crane to understand the law of load yaw motion, implement load anti-sway control technology, and ensure the safety of crane operation.

[0003] For example, the Chinese invention provides "a real-time detection system and method for the spatial swing angle of a crane load", publication number: CN108217460A. This application includes an acquisition unit, a data acquisition module, a data processing module, and a data output module. The acquisition unit is used for four GPS locators to acquire their own spatial coordinate information. The data acquisition module is used to collect the spatial coordinate information acquired by the four GPS locators. The data processing module is used to process the acquired spatial position coordinates to obtain the real-time yaw angle information of the load. The data output module is used to output the real-time yaw angle information. The above method calculates the real-time yaw angle information of the load through the aforementioned detection system, effectively improving the detection accuracy of load yaw detection, and can effectively solve the problem of real-time detection of the yaw angle of a complex spreader system of a large crane during actual operation.

[0004] In the above technology, the real-time detection system and method for the spatial swing angle of a crane load use GPS locators to monitor the real-time swing angle information of the load during use. Since GPS locators are greatly affected by the signals of the operating environment, when the signal reception of the GPS locator is poor, there will be a certain time delay in the detected data, resulting in the inability to give an alarm prompt to personnel in a timely and effective manner when the yaw angle is too large, affecting the safety of the overall operation. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crane load yaw detection and warning device, which has the advantage of being able to give an alarm prompt to personnel in a timely manner when the crane load yaw is too large, so that personnel can make corresponding safety treatments in a timely manner.

[0006] To achieve the above object, the present utility model provides the following technical solution: A crane load yaw detection and warning device, including a fixed box, a driving motor is fixedly installed at the top of the outer surface of the fixed box, an output end of the driving motor is fixedly installed with a worm, a bottom of the worm is movably connected to a bottom of an inner cavity of the fixed box through a bearing, a middle end of a right side of the fixed box is movably connected with a rotating shaft through a bearing, a worm gear is fixedly installed on a left side of the rotating shaft, the worm is engaged with the worm gear, a right side of the rotating shaft is fixedly connected with a fixing plate, a horizontal sensor and an audible and visual alarm are fixedly installed on the right side of the fixing plate from top to bottom in sequence, a lower end of a left side of the fixing plate is fixedly connected with a horizontal shaft, a fixing ring is fixedly connected to a left side of the horizontal shaft, a fixing seat is fixedly connected to an inner cavity of the fixing ring, a number of the fixing seats is three, a middle end of an inner cavity of the fixing seat is fixedly connected with a second spring, a moving plate is fixedly connected to a surface of the second spring, a magnetic control switch is fixedly installed at a middle end of the moving plate, a first spring is fixedly connected to a middle end of an outer surface of the fixing seat, a contact plate is fixedly connected to a surface of the first spring, a U-shaped moving rod is fixedly connected between two ends of the contact plate, and a magnetic block is fixedly connected to a middle end of the U-shaped moving rod.

[0007] As a preferred solution, a guiding slide bar is movably connected between two ends of the U-shaped moving rod and two ends of the moving plate, and two sides of the guiding slide bar are fixedly connected to an inner cavity of the fixing seat.

[0008] As a preferred solution, a support shaft is fixedly installed at a middle end of a left side of the worm gear, and a left side of the support shaft is movably connected to a middle end of a left side of an inner cavity of the fixed box through a bearing.

[0009] As a preferred solution, fixing sleeves are fixedly connected to two sides of an outer surface of the fixing seat, a surface of the U-shaped moving rod is movably connected to an inner cavity of the fixing sleeve, a sealing ring is fixedly connected to a middle end of the inner cavity of the fixing sleeve, and a surface of the U-shaped moving rod is movably connected to a surface of the sealing ring.

[0010] As a preferred solution, a reinforcing rod is fixedly connected to a middle end of a top of the horizontal shaft, and a right side of the reinforcing rod is fixedly connected to a left side of the fixing plate.

[0011] As a preferred solution, mounting plates are fixedly connected to left ends of two sides of the outer surface of the fixed box, and mounting holes are formed on surfaces of the mounting plates.

[0012] As a preferred solution, a maintenance plate is fixedly installed on a front surface of the fixed box through bolts, and a shape of the maintenance plate is rectangular.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the arrangement of the contact plate, fixed seat, first spring, U-shaped moving rod, magnetic block, magnetic control switch and sound and light alarm, the utility model can give an alarm prompt to the surrounding staff when the deflection angle of the steel rope is too large during the load process of the crane, so that the staff can discover and make corresponding safety treatments in time. Through the arrangement of the horizontal sensor, driving motor, worm, worm wheel, rotating shaft, fixed box, fixed plate, horizontal shaft, fixed ring, fixed seat, U-shaped moving rod and contact plate, it is convenient for personnel to effectively horizontally adjust the contact plate during the angle adjustment process of the crane boom, effectively avoiding large deviation misalignment between the three groups of contact plates and the steel rope due to inclination, and ensuring the stable progress of the deflection detection work during the load process of the crane.

[0015] 2. Through the arrangement of the guiding slide rod, the purpose of guiding between the U-shaped moving rod and the moving plate is achieved, avoiding the inclination of the U-shaped moving rod and the moving plate during the moving process. Through the arrangement of the support shaft, the purpose of stably supporting the left side of the worm wheel is achieved, effectively avoiding the inclination of the worm wheel due to force. Through the arrangement of the fixed sleeve and the sealing ring, the sealing performance of the contact between the U-shaped moving rod and the fixed seat is effectively improved, avoiding dust and water from entering the inside of the fixed seat. Through the arrangement of the strengthening rod, the connection strength between the horizontal shaft and the fixed plate is effectively improved. Through the arrangement of the mounting plate and the mounting hole, it is convenient for personnel to install and fix the fixed box on the crane boom. Through the arrangement of the inspection plate, it is convenient for personnel to carry out inspection and maintenance operations on the inside of the fixed box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the utility model;

[0017] Figure 2 is a front sectional structure schematic diagram of the fixed box of the utility model;

[0018] Figure 3 is a top sectional structure schematic diagram of the fixed seat of the utility model;

[0019] Figure 4 is the utility model Figure 3 partial enlarged view at A in.

[0020] In the figure: 1. Fixed box; 2. Driving motor; 3. Mounting plate; 4. First spring; 5. U-shaped moving rod; 6. Contact plate; 7. Fixed ring; 8. Fixed seat; 9. Horizontal shaft; 10. Strengthening rod; 11. Sound and light alarm; 12. Fixed plate; 13. Horizontal sensor; 14. Inspection plate; 15. Worm; 16. Worm wheel; 17. Support shaft; 18. Guiding slide rod; 19. Magnetic block; 20. Magnetic control switch; 21. Second spring; 22. Moving plate; 23. Fixed sleeve; 24. Sealing ring; 25. Rotating shaft. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0023] Embodiment 1:

[0024] Please refer to Figures 1 - 4 As shown, the present invention provides a crane load yaw detection and warning device, including a fixed box 1. A driving motor 2 is fixedly installed at the top of the outer surface of the fixed box 1. The output end of the driving motor 2 is fixedly installed with a worm 15. The bottom of the worm 15 is movably connected to the bottom of the inner cavity of the fixed box 1 through a bearing. The middle end of the right side of the fixed box 1 is movably connected to a rotating shaft 25 through a bearing. A worm gear 16 is fixedly installed on the left side of the rotating shaft 25. The worm 15 meshes with the worm gear 16. The right side of the rotating shaft 25 is fixedly connected to a fixing plate 12. A horizontal sensor 13 and an audible and visual alarm 11 are fixedly installed on the right side of the fixing plate 12 from top to bottom in sequence. The lower end of the left side of the fixing plate 12 is fixedly connected to a horizontal shaft 9. The left side of the horizontal shaft 9 is fixedly connected to a fixing ring 7. A fixing seat 8 is fixedly connected to the inner cavity of the fixing ring 7. The number of the fixing seats 8 is three. A second spring 21 is fixedly connected to the middle end of the inner cavity of the fixing seat 8. A moving plate 22 is fixedly connected to the surface of the second spring 21. A magnetic control switch 20 is fixedly installed at the middle end of the moving plate 22. A first spring 4 is fixedly connected to the middle end of the outer surface of the fixing seat 8. A contact plate 6 is fixedly connected to the surface of the first spring 4. A U-shaped moving rod 5 is fixedly connected between the two ends of the contact plate 6. A magnet 19 is fixedly connected to the middle end of the U-shaped moving rod 5.

[0025] In this technical solution, through the settings of the contact plate 6, fixed seat 8, first spring 4, U-shaped moving rod 5, magnet 19, magnetic control switch 20 and audible and visual alarm 11, it is possible to give an alarm prompt to the surrounding staff when the deflection angle of the steel rope is too large during the load-bearing process of the crane, so that the staff can discover and make corresponding safety treatments in time. Through the settings of the horizontal sensor 13, drive motor 2, worm 15, worm gear 16, rotating shaft 25, fixed box 1, fixed plate 12, horizontal shaft 9, fixed ring 7, fixed seat 8, U-shaped moving rod 5 and contact plate 6, it is convenient for personnel to effectively horizontally adjust the contact plate 6 during the process of adjusting the angle of the crane boom, effectively avoiding large deviation misalignment between the three groups of contact plates 6 and the steel rope due to inclination, and ensuring the stable progress of the deflection detection work during the load-bearing process of the crane.

[0026] Embodiment 2:

[0027] On the basis of Embodiment 1, as shown in the present utility model Figures 1 - 4 shown, guide slide rods 18 are movably connected between the two ends of the U-shaped moving rod 5 and the two ends of the moving plate 22. Both sides of the guide slide rod 18 are fixedly connected to the inner cavity of the fixed seat 8. A support shaft 17 is fixedly installed in the middle of the left side of the worm gear 16. The left side of the support shaft 17 is movably connected to the middle of the left side of the inner cavity of the fixed box 1 through a bearing. Both sides of the outer surface of the fixed seat 8 are fixedly connected with fixed sleeves 23. The surface of the U-shaped moving rod 5 is movably connected to the inner cavity of the fixed sleeve 23. A sealing ring 24 is fixedly connected to the middle of the inner cavity of the fixed sleeve 23. The surface of the U-shaped moving rod 5 is movably connected to the surface of the sealing ring 24. A reinforcing rod 10 is fixedly connected to the middle of the top of the horizontal shaft 9. The right side of the reinforcing rod 10 is fixedly connected to the left side of the fixed plate 12. Installation plates 3 are fixedly connected to the left ends of both sides of the outer surface of the fixed box 1. Installation holes are provided on the surface of the installation plates 3. A maintenance plate 14 is fixedly installed on the front surface of the fixed box 1 through bolts. The shape of the maintenance plate 14 is rectangular.

[0028] In this technical solution, through the setting of the guide slide rod 18, the purpose of guiding between the U-shaped moving rod 5 and the moving plate 22 is achieved, avoiding the inclination of the U-shaped moving rod 5 and the moving plate 22 during the moving process. Through the setting of the support shaft 17, the purpose of stably supporting the left side of the worm gear 16 is achieved, effectively avoiding the inclination of the worm gear 16 due to force. Through the settings of the fixed sleeve 23 and the sealing ring 24, the sealing performance of the contact between the U-shaped moving rod 5 and the fixed seat 8 is effectively improved, avoiding dust and water from entering the inside of the fixed seat 8. Through the setting of the reinforcing rod 10, the connection strength between the horizontal shaft 9 and the fixed plate 12 is effectively improved. Through the settings of the installation plate 3 and the installation holes, it is convenient for personnel to install and fix the fixed box 1 and the crane boom. Through the setting of the maintenance plate 14, it is convenient for personnel to perform maintenance operations on the inside of the fixed box 1.

[0029] The working principle of the utility model is as follows: First, the fixed box 1 is fixedly installed with the boom of the crane, and the steel rope can pass through the three groups of contact plates 6. When the steel rope has a large-angle yaw during the load lifting process of the crane, it will cause the steel rope to push the corresponding contact plate 6 to move during the yaw. When the contact plate 6 moves, it can compress the first spring 4 on the fixed seat 8, and at the same time, it can drive the U-shaped moving rod 5 and the magnet 19 to move. Under the action of the movement of the magnet 19, it can contact the magnetic control switch 20, and under the action of the magnetic force of the magnet 19, the contacts inside the magnetic control switch 20 are closed, so that the sound and light alarm 11 can work, and can give an alarm prompt to the surrounding staff when the yaw angle of the steel rope is too large, so that the staff can discover and make corresponding safety treatments in time. Through the setting of the horizontal sensor 13, it can effectively detect the level of the contact plate 6 during the angle adjustment of the crane boom. And when the contact plate 6 tilts due to the angle adjustment of the crane boom, by starting the driving motor 2 to work, it can drive the worm 15 to rotate. The rotation of the worm 15 can drive the worm wheel 16 and the rotating shaft 25 to rotate along the bearing on the fixed box 1. The rotation of the rotating shaft 25 can drive the fixing plate 12, the cross shaft 9, the fixing ring 7, the fixed seat 8, the U-shaped moving rod 5 and the contact plate 6 to rotate, and can effectively adjust the level of the contact plate 6, effectively avoiding a large deviation and dislocation between the three groups of contact plates 6 and the steel rope due to tilting, and ensuring the stable progress of the yaw detection work during the load process of the crane.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present 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 clause of "means-plus-function" is intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A crane load yaw detection and warning device, comprising a fixed box (1), characterized in that: A driving motor (2) is fixedly installed at the top of the outer surface of the fixed box (1). The output end of the driving motor (2) is fixedly installed with a worm (15). The bottom of the worm (15) is movably connected to the bottom of the inner cavity of the fixed box (1) through a bearing. The middle end on the right side of the fixed box (1) is movably connected with a rotating shaft (25) through a bearing. A worm gear (16) is fixedly installed on the left side of the rotating shaft (25). The worm (15) is engaged with the worm gear (16). The right side of the rotating shaft (25) is fixedly connected with a fixing plate (12). A horizontal sensor (13) and an audible and visual alarm (11) are fixedly installed on the right side of the fixing plate (12) in sequence from top to bottom. The lower end on the left side of the fixing plate (12) is fixedly connected with a horizontal shaft (9). A fixing ring (7) is fixedly connected to the left side of the horizontal shaft (9). A fixing seat (8) is fixedly connected to the inner cavity of the fixing ring (7). The number of the fixing seats (8) is three. A second spring (21) is fixedly connected to the middle end of the inner cavity of the fixing seat (8). A moving plate (22) is fixedly connected to the surface of the second spring (21). A magnetic control switch (20) is fixedly installed at the middle end of the moving plate (22). A first spring (4) is fixedly connected to the middle end of the outer surface of the fixing seat (8). A contact plate (6) is fixedly connected to the surface of the first spring (4). A U-shaped moving rod (5) is fixedly connected between the two ends of the contact plate (6). A magnetic block (19) is fixedly connected to the middle end of the U-shaped moving rod (5).

2. The crane load yaw detection and warning device according to claim 1, characterized in that: Guide slide rods (18) are movably connected between the two ends of the U-shaped moving rod (5) and the two ends of the moving plate (22). The two sides of the guide slide rod (18) are fixedly connected to the inner cavity of the fixing seat (8).

3. The crane load yaw detection and warning device according to claim 1, characterized in that: A support shaft (17) is fixedly installed at the middle end on the left side of the worm gear (16). The left side of the support shaft (17) is movably connected to the middle end on the left side of the inner cavity of the fixed box (1) through a bearing.

4. A crane load yaw detection and warning device according to claim 1, characterized in that: Fixed sleeves (23) are fixedly connected to both sides of the outer surface of the fixing seat (8). The surface of the U-shaped moving rod (5) is movably connected to the inner cavity of the fixed sleeve (23). A sealing ring (24) is fixedly connected to the middle end of the inner cavity of the fixed sleeve (23). The surface of the U-shaped moving rod (5) is movably connected to the surface of the sealing ring (24).

5. The crane load yaw detection and warning device according to claim 1, characterized in that: A reinforcing rod (10) is fixedly connected to the middle end on the top of the horizontal shaft (9). The right side of the reinforcing rod (10) is fixedly connected to the left side of the fixing plate (12).

6. The crane load yaw detection and warning device according to claim 1, wherein: Mounting plates (3) are fixedly connected to the left ends of both sides of the outer surface of the fixed box (1). Mounting holes are formed in the surfaces of the mounting plates (3).

7. The crane load yaw detection and warning device according to claim 1, characterized in that: An inspection plate (14) is fixedly installed on the front surface of the fixed box (1) through bolts. The inspection plate (14) is rectangular in shape.

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