Crane load device and crane

Abstract

The utility model belongs to the technical field of cranes, and discloses a crane loading device and a crane. According to the crane load device, a hoisting hook is connected with a supporting transverse plate, the two ends of the supporting transverse plate are arranged in opposite grooves of a first panel and a second panel in a sliding mode, a pressure sensor is arranged below the end point of the supporting transverse plate, an alarm is arranged on the first panel or the second panel, and the pressure sensor is electrically connected with the alarm; the supporting transverse plate is in direct contact with the pressure sensor, and the pressure sensor is electrically connected with the alarm, so that the load condition of the crane can be monitored and fed back in real time, and once a measured value exceeds a safe load range of the crane, timely warning can be provided to help an operator find potential problems of the device in time; the possibility of accident occurrence is reduced, the false alarm condition can be effectively avoided, the accuracy of load detection is improved, and misleading of operators is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane loading device and a crane. Background Art

[0002] Cranes are important material handling machines, widely used in construction sites, workshops, power, rescue and emergency response, etc. Cranes lift or lift and move heavy objects through a lifting hook or other lifting devices. The working process of a crane generally includes the steps of lifting, running, lowering and returning to the original position. The lifting mechanism lifts the heavy object from the picking location through the picking device, moves the heavy object through the running, rotating or luffing mechanism, and returns to the original position after lowering the heavy object at the designated location.

[0003] As cranes are developed and used more and more widely in the market, safety accidents occur frequently during the use of cranes, among which crane overload is the key factor leading to frequent crane accidents. Crane overload means that the load carried by the crane exceeds its rated load capacity. Crane overload can cause the crane to overturn, hook to fall off, structural damage, etc., and may also cause serious injuries and damage to construction site personnel and the surrounding environment. Therefore, during the operation of the crane, it is usually necessary to limit the load of the crane.

[0004] In the prior art, a spring structure and a control switch are usually provided inside a crane load device. During the hook lifting process, the lifting rod drives the movable block to slide downward along the inside of the hollow shell, stretching the spring until the trigger block at the lower end of the movable block presses the control switch downward, thereby activating the warning light to remind the user that the weight of the heavy object is overloaded. When the load of the heavy object hung on the hook exceeds the specified weight, the spring will be stretched to a degree beyond its elastic limit. Due to the characteristics of the spring itself, even if the load of the heavy object drops to the normal range, the spring cannot be completely restored to its initial state. When the lifting equipment is used again after an overload, even if the heavy object is not overloaded, the control switch will be triggered, causing the crane load device to falsely alarm, affecting the accuracy of load detection and misleading the operator. Utility Model Content

[0005] The utility model aims to provide a crane load device and a crane, which can effectively avoid the situation of false alarm, affect the accuracy of load detection, and mislead operators.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The crane load device comprises a first panel and a second panel, the first panel and the second panel are arranged at an interval, and the first panel and the second panel are arranged with grooves along the height direction on opposite sides; the crane load device also comprises:

[0008] A supporting horizontal plate, both ends of which are slidably arranged in the grooves; the supporting horizontal plate is connected with a lifting hook;

[0009] A pressure sensor is disposed in a groove of the first panel and / or the second panel and is located below the supporting transverse plate so that the supporting transverse plate can contact the pressure sensor;

[0010] An alarm is arranged on the first panel or the second panel, and the pressure sensor is electrically connected to the alarm.

[0011] Preferably, pressure sensors are disposed in the grooves of the first panel and the second panel.

[0012] Preferably, the bottom of the grooves of the first panel and the second panel are both provided with mounting grooves, the pressure sensor is embedded in the mounting groove, and the sensing area of ​​the pressure sensor protrudes from the mounting groove.

[0013] Preferably, the lifting hook includes a hook body and a limiting member, a through hole is set in the center of the supporting horizontal plate, the first end of the hook body is passed through the supporting horizontal plate, and the limiting member is connected to the first end of the hook body to limit the hook body from leaving the supporting horizontal plate.

[0014] Preferably, the limiting member is configured as a limiting ball, an arc-shaped groove is provided at the end of the through hole on the side facing the limiting ball, and at least a portion of the limiting ball is embedded in the arc-shaped groove.

[0015] Preferably, the crane load device further comprises a lifting wire wheel, which is rotatably arranged between the first panel and the second panel, and a wire groove is arranged on the lifting wire wheel.

[0016] Preferably, the crane load device further comprises a plurality of connecting rods, and the connecting rods are detachably connected between the first panel and the second panel.

[0017] Preferably, the alarm is an audible and visual alarm.

[0018] Preferably, the crane load device further comprises a control box, which is provided with a display screen and is arranged outside the first panel or the second panel; the control box, the pressure sensor and the alarm are electrically connected.

[0019] A crane comprises a wire rope and any one of the above-mentioned crane load devices, wherein the wire rope is connected to a first panel and a second panel.

[0020] Beneficial effects of the utility model:

[0021] The crane load device is configured by connecting a supporting cross plate to a lifting hook, sliding both ends of the supporting cross plate in relative grooves of a first panel and a second panel, arranging a pressure sensor below the end point of the supporting cross plate, arranging an alarm on the first panel or the second panel, and electrically connecting the pressure sensor to the alarm. Since the supporting cross plate is in direct contact with the pressure sensor, and the pressure sensor is electrically connected to the alarm, the load condition of the crane can be monitored in real time and directly fed back. Once the measured value exceeds the safe load range of the crane, the alarm can be immediately triggered to provide a timely warning, helping operators to promptly discover and solve potential problems of the device, reducing the possibility of accidents, and being able to effectively avoid false alarms, improve the accuracy of load detection, and prevent misleading operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the crane load device of the utility model;

[0023] Figure 2 It is a side view of the crane load device of the utility model;

[0024] Figure 3 It is a structural diagram of the control box of the utility model.

[0025] In the figure:

[0026] 1. First panel; 2. Second panel; 3. Supporting horizontal board; 4. Lifting hook; 41. Hook body; 42. Limiting piece; 5. Pressure sensor; 6. Mounting slot; 7. Alarm; 8. Lifting wheel; 9. Connecting rod; 10. Control box; 11. Display screen; 12. Battery; 13. Control circuit board; 14. Signal transceiver; 15. Processor; 16. Operation button; 17. USB interface; 18. Wiring hole; 19. Power switch; 20. Memory. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] See also Figures 1 to 3As shown, the present application provides a crane load device, including a first panel 1, a second panel 2, a supporting cross plate 3, a lifting hook 4, a pressure sensor 5 and an alarm 7; the first panel 1 and the second panel 2 are spaced apart, and grooves are provided on the opposite sides of the first panel 1 and the second panel 2 along the height direction, and both ends of the supporting cross plate 3 are slidably arranged in the grooves, and the supporting cross plate 3 is connected to the lifting hook 4, and the pressure sensor 5 is arranged in the grooves of the first panel 1 and / or the second panel 2, and is located below the supporting cross plate 3, so that the supporting cross plate 3 can contact with the pressure sensor 5, so that when a heavy object is carried on the lifting hook 4, the gravity of the heavy object drives the supporting cross plate 3 connected to the lifting hook 4 to slide downward inside the groove; when the supporting cross plate 3 slides downward, the pressure is directly applied to the pressure sensor 5, through The direct contact between the supporting cross plate 3 and the pressure sensor 5 can ensure that the pressure sensor 5 can accurately sense the pressure changes on the supporting cross plate 3; the alarm 7 is set on the first panel 1 or the second panel 2 and electrically connected to the pressure sensor 5. When the pressure sensor 5 detects that the pressure exceeds the safe range, the alarm 7 can directly receive the signal of the pressure sensor 5 and immediately sound an alarm, reminding the operator to pay attention and take necessary measures, which can effectively avoid potential safety risks and accidents during the construction process. At the same time, since the alarm 7 is directly electrically connected to the pressure sensor 5, no additional complex connection and setting are required, which simplifies the installation and operation process of the device, reduces the cost of maintenance and management, can effectively avoid false alarms, improve the accuracy of load detection, and prevent misleading operators. It should be noted that the height direction in this embodiment refers to the vertical direction from the top to the bottom of the first panel 1 and the second panel 2.

[0032] like Figure 1 and Figure 2As shown, in some embodiments, the grooves of the first panel 1 and the second panel 2 are both provided with pressure sensors 5, so that the two pressure sensors 5 can provide more data points, thereby increasing the measurement accuracy of the pressure change of the supporting horizontal plate 3, which helps to more accurately evaluate the load condition of the crane and avoid overloading or other safety issues; and the number of pressure sensors 5 is increased to avoid measurement deviation caused by a single pressure sensor 5, and increase the accuracy of detection; based on this, the user can more easily detect sensor failure or abnormality by simultaneously monitoring the output of the two pressure sensors 5, and once an abnormality is found, timely measures can be taken to avoid potential safety risks. Preferably, the bottom of the grooves of the first panel 1 and the second panel 2 are both provided with mounting grooves 6, and the pressure sensor 5 is embedded in the mounting grooves 6. The mounting grooves 6 can provide a fixed position for the pressure sensor 5, prevent the pressure sensor 5 from loosening or shifting during the operation of the device, and ensure that the pressure sensor 5 is always in a fixed position for pressure measurement; the sensing area of ​​the pressure sensor 5 protrudes from the mounting groove 6, which can ensure that the sensing area of ​​the pressure sensor 5 is in direct contact with the supporting horizontal plate 3, maintain the sensitivity of the pressure sensor 5, and facilitate timely perception of external pressure changes and timely feedback of pressure signals.

[0033] like Figure 2 As shown, in some embodiments, a through hole is set in the center of the supporting horizontal plate 3, and the lifting hook 4 includes a hook body 41 and a stopper 42. One end of the hook body 41 is penetrated through the through hole set in the center of the supporting horizontal plate 3, and the stopper 42 is connected to one end of the hook body 41 to stop the hook body 41 from being separated from the supporting horizontal plate 3. The through hole is set in the center of the supporting horizontal plate 3 to achieve balanced distribution of the load, reduce the uneven distribution of the load on the supporting horizontal plate 3, and help improve the stability and safety of the equipment; the stopper 42 can effectively prevent the hook body 41 from accidentally separating from the supporting horizontal plate 3, and reduce the risk of accidents caused by instability. Preferably, the stopper 42 is fixedly connected to the hook body 41, and the two can be connected by, but not limited to, threaded connection followed by welding reinforcement, which increases the strength and stability of the connection between the stopper 42 and the hook body 41, and can ensure the stability of the connecting member under high load or vibration environment. Exemplarily, the stopper 42 can be, but not limited to, a stopper ball or a stopper pin.

[0034] In some embodiments, the limiting member 42 is configured as a limiting ball, and an arc-shaped groove is opened at the end of the through hole facing the limiting ball, and at least part of the limiting ball is embedded in the arc-shaped groove. The arc-shaped groove increases the contact area with the limiting ball, which can provide more supporting force and disperse the pressure at the same time; embedding part of the limiting ball in the arc-shaped groove to limit the limiting ball can effectively position the limiting ball at the center of the through hole.

[0035] In some embodiments, the crane load device also includes a lifting pulley 8, which is rotatably arranged between the first panel 1 and the second panel 2. The wire rope of the crane realizes the lifting and lowering of heavy objects through the rotation of the lifting pulley 8. A wire groove is arranged on the lifting pulley 8, which can effectively prevent the wire rope from being entangled and entangled during the lifting process, thereby ensuring the smooth transmission of the wire rope and reducing operational failures and safety hazards caused by wire rope entanglement.

[0036] In some embodiments, the crane load device also includes a plurality of connecting rods 9, which are detachably connected between the first panel 1 and the second panel 2. When the pressure sensor 5 is damaged or needs to be replaced, maintenance personnel can easily remove the first panel 1, the second panel 2 and the connecting rods 9, and replace or repair the damaged pressure sensor 5 without replacing the entire set of equipment. Therefore, the above scheme can reduce the cost and time of repairing and replacing the pressure sensor 5; illustratively, the detachable connection method of the connecting rod 9 can be but is not limited to a threaded connection or a pin connection.

[0037] In some embodiments, the alarm 7 is an audible and visual alarm, which combines the two perception modes of sound and light, and can remind the operator by sound and flash at the same time, thereby increasing the effectiveness and perceptibility of the alarm. The audible and visual alarm is suitable for various environments, including noisy factory workshops, enclosed warehouses, outdoor construction sites, etc., and can provide reliable alarm functions in different scenarios.

[0038] In some embodiments, the crane load device further comprises a control box 10, which is provided with a display screen 11, and the operator can monitor the data of the pressure sensor 5 in real time through the display screen 11. The current working state of the crane and the load conditions it bears can be understood, and when the crane is not working, the pressure sensor 5 can be judged whether there is an abnormality by reading the data of the display screen 11, which is helpful to timely discover the abnormal conditions of the device and take corresponding measures; the control box 10 is arranged outside the first panel 1 or the second panel 2, so that the operator can directly observe the data on the control box 10 outside the first panel 1 or the second panel 2 of the crane without additional movement or adjustment of the position; the control box 10, the pressure sensor 5 and the alarm 7 are electrically connected, and the control box 10 can monitor the data of the pressure sensor 5 in real time, and trigger the alarm 7 according to the preset conditions, so as to timely feedback the measurement results of the pressure sensor 5, and remind the operator to pay attention to the working state and load conditions of the crane.

[0039] like Figure 3As shown, in some embodiments, the control box 10 also includes a battery 12, a control circuit board 13, a signal transceiver 14, a processor 15, an operation button 16, a USB interface 17, a wiring hole 18, a power switch 19, and a memory 20. The above-mentioned electrical devices are powered by the battery 12. Even if the external power supply is interrupted, the control box 10 can maintain normal operation, ensuring the stability and continuity of the crane; the integrated design of components such as the control circuit board 13, the signal transceiver 14 and the processor 15 enables the control box 10 to have complete control functions, and can realize various operations and Control; the operation buttons 16 and USB interface 17 are provided so that the user can directly operate and transmit data on the control box 10, which simplifies the operation process and improves the convenience of operation; the wiring hole 18 is provided to facilitate the connection of external devices, such as pressure sensor 5, display screen 11, etc., and realize the flexible combination and function expansion of the control box 10 with other devices; the power switch 19 can conveniently control the power supply of the control box 10, which is convenient for saving energy and turning the equipment on and off; the memory 20 is provided to store important data and configuration information, which is convenient for subsequent data analysis and use. By integrating various functional components and adopting reasonable design, the stability and reliability of the control box 10 can be improved to ensure the normal operation of the crane system.

[0040] The present application also provides a crane, which includes a wire rope and a crane load device, the wire rope is connected to a first panel 1 and a second panel 2, specifically, the wire rope is connected to the first panel 1 and the second panel 2 through a lifting pulley 8 between the first panel 1 and the second panel 2, by connecting a support cross plate 3 of the crane load device to a lifting hook 4, the two ends of the support cross plate 3 are slidably arranged in relative grooves of the first panel 1 and the second panel 2, a pressure sensor 5 is arranged below the end point of the support cross plate 3, an alarm 7 is arranged on the first panel 1 or the second panel 2, and the pressure sensor 5 is electrically connected to the alarm 7; since the support cross plate 3 is in direct contact with the pressure sensor 5, and the pressure sensor 5 is electrically connected to the alarm 7, the load condition of the crane can be monitored in real time and directly fed back, once the measured value exceeds the safe load range of the crane, the alarm 7 can be immediately triggered to alarm, providing timely warnings, helping operators to promptly discover and solve potential problems of the device, reducing the possibility of accidents, and can effectively avoid the false alarm caused by excessive stretching of the spring structure installed inside the device, improve the accuracy of load detection, and prevent misleading operators.

[0041] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A crane load device, comprising a first panel (1) and a second panel (2), wherein the first panel (1) and the second panel (2) are spaced apart from each other, characterized in that: The first panel (1) and the second panel (2) are both provided with grooves along the height direction on opposite sides thereof; The crane load device also includes: A supporting transverse plate (3), both ends of which are slidably disposed in the groove; the supporting transverse plate (3) is connected with a lifting hook (4); a pressure sensor (5), the pressure sensor (5) being arranged in a groove of the first panel (1) and / or the second panel (2), and being located below the supporting transverse plate (3), so that the supporting transverse plate (3) can be in contact with the pressure sensor (5); An alarm (7), wherein the alarm (7) is arranged on the first panel (1) or the second panel (2), and the pressure sensor (5) is electrically connected to the alarm (7).

2. The crane load device according to claim 1, characterized in that: The pressure sensor (5) is arranged in the groove of the first panel (1) and the second panel (2).

3. The crane load device according to claim 2, characterized in that: The bottom of the grooves of the first panel (1) and the second panel (2) are both provided with mounting grooves (6), the pressure sensor (5) is embedded in the mounting groove (6), and the sensing area of ​​the pressure sensor (5) protrudes from the mounting groove (6).

4. The crane load device according to claim 1, characterized in that: The lifting hook (4) comprises a hook body (41) and a limiting member (42); a through hole is arranged at the center of the supporting transverse plate (3); one end of the hook body (41) is passed through the supporting transverse plate (3); and the limiting member (42) is connected to one end of the hook body (41) to limit the hook body (41) from being separated from the supporting transverse plate (3).

5. The crane load device according to claim 4, characterized in that The limiting member (42) is configured as a limiting ball, an arc-shaped groove is provided at the end of the through hole on a side facing the limiting ball, and at least a portion of the limiting ball is embedded in the arc-shaped groove.

6. The crane load device according to claim 1, characterized in that: The crane load device further comprises a lifting wire wheel (8), wherein the lifting wire wheel (8) is rotatably arranged between the first panel (1) and the second panel (2), and a wire groove is arranged on the lifting wire wheel (8).

7. The crane load device according to claim 1, characterized in that: The crane load device further comprises a plurality of connecting rods (9), wherein the connecting rods (9) are detachably connected between the first panel (1) and the second panel (2).

8. The crane load device according to claim 1, characterized in that: The alarm (7) is an audible and visual alarm.

9. The crane load device according to claim 1, characterized in that: The crane load device further comprises a control box (10), wherein the control box (10) is provided with a display screen (11), and the control box (10) is arranged outside the first panel (1) or the second panel (2); the control box (10), the pressure sensor (5) and the alarm (7) are electrically connected.

10. A crane comprising a wire rope, characterized in that The crane further comprises a crane load device as claimed in any one of claims 1 to 9, wherein the steel wire rope is connected to the first panel (1) and the second panel (2).

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