Lifting appliance steel cable weighing sensor

Abstract

The utility model discloses a lifting appliance steel cable weighing sensor, and belongs to the technical field of sensors. The device mainly comprises: a housing; the elastic body is arranged in the shell, and the upper end and the lower end of the elastic body are inclined planes; the charging hole is formed in the lower inclined surface of the elastic body; the antenna transmitting hole is formed in the lower inclined surface of the elastic body; the battery jar is arranged on the elastic body; the battery is arranged in the battery jar; the power management module is mounted at the lower end of the elastic body; a wireless module mounted on the elastic body; the antenna is arranged in the antenna transmitting hole; and the charging module is mounted in the charging hole. The lifting appliance steel cable weighing sensor achieves the effects that the actual application precision of a reactive grab bucket scale is improved, and the metering precision is not affected by replacing the grab bucket and the steel wire rope.

Description

Technical Field

[0001] This application relates to the field of sensor technology, specifically to a load cell for lifting cables. Background Technology

[0002] Currently, large port terminals require the handling of bulk materials, necessitating the use of port gantry cranes for transshipment operations. Given the diverse nature of bulk materials and their varying specific gravities and sizes, accurate and stable weighing modules are required.

[0003] Currently, the main weighing and measurement methods at the dock include electronic belt scales, static weighing hoppers, weighbridges, and ship draft gauges.

[0004] However, all weighing methods currently suffer from low efficiency, poor accuracy, high cost, and inconvenience for frontline use.

[0005] Electronic belt scales are greatly affected by environmental factors and cannot achieve theoretical measurement accuracy; static weighing hoppers have complex structures and low efficiency, which seriously affects the efficiency of loading and unloading operations; the structure of weighbridges limits their use to the front of wharves; the measurement accuracy of ship draft scales is affected by various factors such as wind, waves, surrounding water density and changes in the ship itself, making it difficult to guarantee measurement stability. Therefore, it is necessary to provide a lifting cable weighing sensor to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a load cell for lifting cables, which solves the problems of high cost, low efficiency and poor measurement accuracy of the existing solutions, and at the same time greatly reduces the measurement error caused by the operator's operating habits and the change of the angle of the gantry crane.

[0008] The technical solution adopted by this application to solve its technical problem is: a load cell for lifting cables, comprising:

[0009] shell;

[0010] An elastomer disposed inside a housing, wherein both the upper and lower ends of the elastomer are inclined surfaces;

[0011] A charging port is installed on the lower inclined surface of the elastomer;

[0012] An antenna transmitting port is mounted on the lower inclined surface of the elastic body;

[0013] A battery compartment, which is mounted on the elastomer;

[0014] A battery, which is installed in the battery compartment;

[0015] A power management module is installed at the lower end of the elastomer;

[0016] A wireless module, which is mounted on the elastomer;

[0017] The antenna is installed inside the antenna's transmitting port;

[0018] A charging module is installed inside the charging port.

[0019] Furthermore, the outer shell is made of 2Cr13 stainless steel and is integrally machined.

[0020] Furthermore, the lower end of the outer casing is provided with bolt mounting holes, the outer diameter of which is smaller than the outer diameter of the upper flange of the elastomer.

[0021] Furthermore, a silicone gasket is provided between the wireless module and the elastomer.

[0022] Furthermore, the gap between the antenna and the antenna transmitting hole is filled with 4:1 waterproof adhesive and then covered with 1:1:0.5% polyurethane adhesive.

[0023] Furthermore, a metal plug with a sealing gasket is detachably installed inside the charging port.

[0024] Furthermore, the upper end of the outer casing is provided with mounting holes for fixing bolts.

[0025] Furthermore, a sealing gasket is added between the outer shell and the elastomer.

[0026] Furthermore, the outer diameter of the upper flange of the elastomer is larger than that of the lower flange.

[0027] The beneficial effects of this application are: the lifting cable weighing sensor provided by this application improves the actual application accuracy of the reactive grab scale, and the replacement of the grab bucket and wire rope does not affect the measurement accuracy.

[0028] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is an exploded schematic diagram of a lifting cable weighing sensor according to this application;

[0031] Figure 2 for Figure 1 A schematic diagram of A in the middle;

[0032] Figure 3 This is a schematic diagram showing the external shape of the wireless receiver provided in this application;

[0033] The following are the labeling elements in the figure:

[0034] 1. Housing; 2. Elastomer; 3. Charging port; 4. Antenna transmitting port; 5. Wireless module; 6. Power management module; 7. Battery; 8. Battery slot; 9. Antenna; 10. Wireless receiver; 11. Charging module. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] like Figures 1-3 As shown, this application provides a load cell for a lifting cable. The load cell is mainly installed on the cable between the lifting device and the grab bucket of the gantry crane to accurately measure the weight of the material grabbed by the lifting device. Specifically, the load cell includes a housing 1, which is made of 2Cr13 stainless steel and is integrally machined to adapt to harsh working environments such as ports and docks. The upper end of the housing 1 is provided with a fixing bolt mounting hole for connecting with the lifting cable.

[0038] Furthermore, an elastomer 2 is provided inside the housing 1. Flanges (not shown in the figure) are provided at both the upper and lower ends of the elastomer 2. At the same time, a bolt mounting hole is provided at the lower end of the housing 1. The outer diameter of the bolt mounting hole is slightly smaller than the outer diameter of the upper flange of the elastomer 2, so that the housing 1 and the elastomer 2 fit tightly together. A sealing gasket is added between the housing 1 and the elastomer 2 to ensure the sealing of the sensor.

[0039] Furthermore, the outer diameter of the upper flange of the elastomer 2 is slightly larger than that of the lower flange, so that the elastomer 2 can be smoothly connected to the outer shell 1;

[0040] Meanwhile, both the upper and lower ends of the elastic body 2 are inclined surfaces, and an antenna transmission hole 4 is provided on the lower inclined surface of the elastic body 2 to meet the wireless signal transmission requirements of the sensor.

[0041] Furthermore, an antenna 9 is provided at the antenna emission hole 4. In this application, the antenna 9 can be a lightweight, durable, and flexible chili stick antenna. At the same time, the gap between the antenna 9 and the antenna emission hole 4 is filled with 4:1 waterproof glue, and then the antenna emission hole 4 is covered with 1:1:0.5% polyurethane glue to prevent moisture from entering the sensor and protect the internal components from damage.

[0042] Meanwhile, a wireless module 5 is fixedly installed at the lower end of the elastomer 2 on one side of the power management module 6, and a silicone gasket is installed between the wireless module 5 and the elastomer 2, so as to achieve shock absorption and insulation through the silicone gasket, thereby protecting the wireless module 5 from vibration and electromagnetic interference.

[0043] Thus, the wireless module 5 emits a signal through the antenna 9 set at the antenna transmitting hole 4, and the signal is received by the wireless receiver 10 installed in the cab, thereby realizing communication between the sensor and the instrument box in the cab. The wireless communication technology provides 116 channels to ensure stable and reliable communication.

[0044] Meanwhile, a charging hole 3 is provided on one side of the antenna transmitting hole 4 on the elastic body 2, and a charging module 11 is fixedly provided in the charging hole 3. In this application, the charging module 11 can be a Type-C charging module to meet the charging needs of the sensor. When the charging hole 3 is not being charged, it is sealed with a metal plug with a sealing gasket to prevent dust and moisture from entering.

[0045] Furthermore, a battery slot 8 is provided on the elastomer 2, and a battery 7 is provided inside the battery slot 8. In this application, the battery 7 can be a high-rate rechargeable battery, and a power management module 6 is provided at the lower end of the elastomer 2 to control the charging and discharging of the battery 7 and the stable output of the power.

[0046] In practical applications, after the wireless weighing sensor is installed in place, it is connected to the crane and the grab bucket. The real-time tensile force value is calculated in real time to obtain the AD value. The signal is sent to the wireless receiver 10 in the cab through wireless communication technology. The receiver filters, samples and amplifies the data as a whole. The grab bucket is suspended in the air. The value read at this time is the zero point value. After grabbing the material, the value is read again to obtain the weight of the bulk material in the grab bucket. The values ​​are accumulated to obtain the final total weight of the bulk material, thus achieving the practical application of transshipment measurement.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A load cell for lifting cables, characterized in that: include: Outer shell (1); An elastomer (2) is disposed inside the outer shell (1), and the upper and lower ends of the elastomer (2) are both inclined surfaces; Charging hole (3), which is installed on the lower inclined surface of the elastomer (2); Antenna emission port (4) is installed on the lower inclined surface of the elastic body (2); Battery slot (8) is mounted on the elastomer (2); A battery (7) is installed in the battery compartment (8); A power management module (6) is installed at the lower end of the elastomer (2); A wireless module (5) is mounted on the elastomer (2); Antenna (9), which is installed inside the antenna transmitting hole (4); A charging module (11) is installed inside the charging port (3).

2. The load cell for lifting cables according to claim 1, characterized in that: The outer shell (1) is made of 2Cr13 stainless steel and is integrally formed.

3. The load cell for lifting cables according to claim 1, characterized in that: The lower end of the outer shell (1) is provided with a bolt mounting hole, the outer diameter of which is smaller than the outer diameter of the upper flange of the elastomer (2).

4. The load cell for lifting cables according to claim 1, characterized in that: A silicone gasket is provided between the wireless module (5) and the elastomer (2).

5. A load cell for lifting cables according to claim 1, characterized in that: The gap between the antenna (9) and the antenna transmitting hole (4) is filled with 4:1 waterproof glue and then covered with 1:1:0.5% polyurethane glue.

6. A load cell for lifting cables according to claim 1, characterized in that: The charging port (3) is equipped with a metal plug with a sealing gasket inside.

7. A load cell for lifting cables according to claim 1, characterized in that: The upper end of the outer shell (1) is provided with a fixing bolt mounting hole.

8. A load cell for lifting cables according to claim 1, characterized in that: A sealing gasket is added between the outer shell (1) and the elastomer (2).

9. A load cell for lifting cables according to claim 1, characterized in that: The outer diameter of the upper flange of the elastomer (2) is larger than that of the lower flange.

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