A force detection device for D-shaped shackle

Abstract

The present invention discloses a force detection device for a D-shaped shackle, comprising a base and a shell; a groove matching the shape of the bottom of the D-shaped shackle is provided on the outer wall of the base, a measuring hole is provided above the groove at the center plane corresponding to the width direction of the base, a sensor module is fixed on the upper surface of the measuring hole, and a signal compensation amplification module is fixed on the lower surface; the shell covers the base and the bottom of the D-shaped shackle, and a chip processing module, a wireless module and a power module are fixed on the shell; the sensor module and the signal compensation amplification module, and the signal compensation amplification module and the chip processing module are connected by wires. The base and the shell are used as an additional kit for the steel wire rope connecting section of the D-shaped shackle, and an intelligent module is provided on the additional kit, and the working condition of the entire load-bearing system is detected and fed back by the intelligent module. There is no need to open a hole to implant the sensor, so as to ensure the structural strength of the shackle; sensors of the same type match each other for easy replacement. The setting of the intelligent module can provide system working mode selection.

Description

Technical Field

[0001] The invention relates to a D-shaped shackle, in particular to a force detection device for the D-shaped shackle. Background Art

[0002] With the rapid development of industrial technology, shackles are widely used in various industries such as electricity, metallurgy, petroleum, machinery, railways, chemicals, ports, mining, and construction. The stress condition when connected with the wire rope is crucial to work safety. However, at this stage, the stress condition of the shackle has not received enough attention, and there is also a lack of effective means. The current solution is to drill holes on the shackle fixing pin shaft and implant sensors for detection. This method is not only difficult to process, but also reduces the original structural strength, and is not convenient for large-scale transformation of existing shackles. Summary of the invention

[0003] The object of the present invention is to provide a device which can effectively detect the stress condition of the shackle and reflect the working state of the entire load-bearing system without changing the structure of the D-shaped shackle.

[0004] The force detection device for a D-shaped shackle provided by the present invention comprises a base and a shell; a groove matching the shape of the bottom of the D-shaped shackle is provided on the outer wall of the base, a measuring hole is provided above the groove at the center plane corresponding to the width direction of the base, a sensor module is fixed on the upper surface of the measuring hole, and a signal compensation amplification module is fixed on the lower surface; the shell covers the base and the bottom of the D-shaped shackle, and a chip processing module, a wireless module and a power supply module are fixed on the shell; the sensor module and the signal compensation amplification module, and the signal compensation amplification module and the chip processing module are connected by wires.

[0005] In one implementation of the above technical solution, the base is a C-shaped body, including two parts connected by plug-in, and the connection is located on one side of the center plane of the width of the C-shaped body.

[0006] In one implementation of the above technical solution, the base is a metal base, and two parts of the base are plugged in through a wedge-shaped groove and a wedge-shaped convex strip and then glued into one body.

[0007] In one implementation of the above technical solution, the measuring hole is a bridge-shaped hole.

[0008] In one implementation of the above technical solution, the middle position of the outer arc surface of the base contacts the inner wall of the shell, and the two sides in the width direction of the shell are fitted with the two sides in the width direction of the base to form a circular hole covering the D-shaped shackle.

[0009] In one implementation of the above technical solution, the shell is made of engineering plastic, which is symmetrically divided into two parts along the center plane in the thickness direction, and the two parts are glued into one.

[0010] In one implementation of the above technical solution, two sides of the shell in the width direction are higher than two sides of the base in the width direction, and the bottom surface of the raised section is snap-connected to the top surfaces on both sides of the base.

[0011] The present invention provides a base and a shell covering the wire rope connecting section of the D-shaped shackle, a measuring hole is provided on the base, a sensor module is fixed on the upper surface of the measuring hole, and a signal compensation amplification module is fixed on the lower surface, and the stress condition of the shackle is detected by feedback of the deformation of the upper surface of the measuring hole by the sensor module, and a chip processing module and a wireless module for receiving and processing the detection data of the sensor module are provided on the shell. That is, the base and the shell are used as an additional kit of the wire rope connecting section of the D-shaped shackle, and an intelligent module is provided on the additional kit, and the working condition of the entire load-bearing system is detected and fed back by the intelligent module. There is no need to open a hole in the original shackle structure to implant a sensor, so as to ensure the structural strength of the shackle; in addition, sensors of the same type can be matched with each other for easy replacement. The setting of the intelligent module can provide system working mode selection, and different working modes are designed for actual complex and changeable situations to achieve the purpose of detecting, processing and storing data, and reporting data, so as to provide an effective method for monitoring the stress state of the shackle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a schematic diagram of the use status of a preferred embodiment of the present invention.

[0013] Figure 2 for Figure 1 Schematic diagram with half of the middle casing removed.

[0014] Figure 3 for Figure 1 Schematic diagram with the entire housing removed.

[0015] Figure 4 for Figures 1 to 3 Schematic diagram of the base structure.

[0016] Figure 5 for Figure 4 Schematic diagram of the structure of the center left seat.

[0017] Figure 6 for Figure 4 Schematic diagram of the structure of the center right seat body.

[0018] Figure 7 Schematic diagram of module working states corresponding to different working modes of this embodiment. DETAILED DESCRIPTION

[0019] Combination Figures 1 to 3 It can be seen that:

[0020] The force detection device for a D-shaped shackle disclosed in this embodiment includes a base 1 and a shell 2 .

[0021] The base 1 is a C-shaped body, and its outer wall has a groove matching the shape of the bottom of the D-shaped shackle. After the bottom of the D-shaped shackle is inserted into the groove on the base, the C-shaped body is covered by the outer shell. That is, the base and the outer shell are used as an additional kit, which is covered and fixed outside the wire rope connection section of the D-shaped shackle.

[0022] Combination Figures 3 to 6 It can be seen that the base 1 includes a left base body 11 and a right base body 12 which are plug-in connected. The plug-in end of the left base body 11 is provided with a wedge-shaped convex strip, and the plug-in end of the right base body 12 is provided with a wedge-shaped groove. The two are plug-in assembled through the wedge-shaped convex strip and the wedge-shaped groove. The assembly line is on one side of the center plane in the width direction of the C-shaped body. This makes it convenient to set a measuring hole 111 at the center plane in the width direction of the C-shaped body. The measuring hole is located above the groove on the outer wall of the C-shaped body and is a bridge-shaped hole that runs through the thickness of the C-shaped body.

[0023] The base 1 is made of metal material, and the preferred material in this embodiment is 40Cr alloy of national standard steel grade. The two parts of the base 1 are plugged and glued with engineering glue to ensure the integrity of the base 1.

[0024] from Figure 2 It can be seen that the two sides of the shell 2 in the height and width direction are higher than the two sides of the base 1 in the width direction, the lowest position of the base 1 contacts the bottom surface of the inner cavity of the shell 2, the two sides of the base 1 in the width direction contact the inner walls of the shell 1 in the width direction, and the two sides of the base 1 in the thickness direction contact the inner walls of the shell 2 in the thickness direction, and the bottom surfaces of the raised sections on both sides of the shell 2 are clamped on the top surfaces on both sides of the base 1.

[0025] That is, the shell 2 is fitted and wrapped around the base 1 , and in order to facilitate assembly and ensure contact between the shell and the base, the shell 2 is provided with two symmetrical front and rear parts according to the center plane in the thickness direction.

[0026] After the base 1 and the housing 2 are manufactured, the sensor module is fixed at the middle position of the upper surface of the measuring hole on the base 1, and the signal compensation amplifier module is fixed on the lower surface. The sensor module of this embodiment is preferably a resistance strain gauge sensor, and the signal compensation amplifier is preferably a Wheatstone bridge.

[0027] The chip processing module, the wireless module and the power module are fixed on the surface of the shell. The sensor module and the signal compensation amplification module, and the signal compensation amplification module and the chip processing module are connected respectively through wires.

[0028] The housing 2 is made of engineering plastics to ensure signal transmission of the wireless module.

[0029] The specific assembly process of this device is as follows:

[0030] (1) Apply glue to the groove of base 1 where the sensor module and signal compensation amplifier module have been attached and fit it to the bottom of the shackle;

[0031] (2) Apply glue to the groove on the outer wall of the base 1 and the plug-in wedge structure, and fit the bottom of the D-shaped shackle into the groove on the outer wall of the base 1;

[0032] (3) The signal compensation amplification module is connected to the chip processing module through wires

[0033] (4) Apply glue to the inner wall of the shell and cover the base and the bottom of the D-shaped shackle so that the base and the shell form an additional kit of the D-shaped shackle.

[0034] The working principle of this device is as follows:

[0035] After the chip in the chip processing module enters the standby mode, the chip operating current decreases, saving power consumption, but the RAM, timer, interrupt system and serial port still work normally.

[0036] The chip processing module can manage the sensor module, wireless module, and power module to ensure the normal operation of the entire system.

[0037] The chip processing module sets the system's working mode, the wireless module transmits the sensor signal processed by the chip to the host computer, and the power module can be powered by a combination of solar energy and batteries. The power module powers the sensor module, signal compensation module, chip processing module, and wireless module.

[0038] The entire system can adopt the following working modes according to the actual situation:

[0039] Mode 1: During the entire lifting process of the load-bearing system, the shackle is dynamically stressed, the sensor module, chip processing module and wireless module work normally, and real-time detection, real-time data processing and real-time data reporting are carried out;

[0040] Mode 2: During the load-bearing process of the entire load-bearing system, the shackle is subjected to floating force in a small range, and the entire system can work intermittently. According to the actual situation, the test data can be reported once every hour, once every 12 hours, or once every 24 hours;

[0041] Mode three: During the entire load-bearing process of the load-bearing system, the shackle is subjected to floating force in a small range, the sensor module works normally, the chip processing module works normally, processes and records data, and the wireless module works intermittently. According to the actual situation, the detection data is reported once every hour, once every 12 hours, or once every 24 hours.

[0042] Mode 4: During the entire load-bearing process of the load-bearing system, the shackle floats in a small range and bears force, the sensor module works normally, the chip processing module works normally, and the data is processed and recorded. If there is no abnormality, the wireless module does not work and does not report the detection data; if there is an abnormality, the wireless module works and reports the abnormal detection data;

[0043] Mode five: during the load-bearing process of the entire load-bearing system, the shackle floats and bears force in a small range, the sensor module works normally, there is no abnormality, the chip processing module enters standby mode, the wireless module does not work, and no detection data is reported; if there is an abnormality, the chip processing module works normally, processes and records data, the wireless module works, and reports abnormal detection data.

[0044] During the working process, the calibrated detection device detects the stress condition of the connection between the shackle and the wire rope. When the base is deformed due to the tension, the sensor module using the resistance strain gauge calculates the force by detecting this tiny deformation. After the amplification and compensation circuit, the signal is transmitted to the chip processing module. The processed data is transmitted to the host computer through the wireless module for processing. The host computer can also control the detection device through the wireless module.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] (1) The present invention uses a method of loading a U-shaped sensor base and a shell combination accessory, which does not require a hole to be opened in the original D-shaped shackle structure to implant the sensor. While ensuring the structural strength, the additional kit is as light as possible. Sensors of the same type can be matched with each other, and damaged structures can be easily replaced. The present invention is loaded into the existing D-shaped shackle structure in the form of an additional accessory, which is convenient for market promotion and large-scale use.

[0047] (2) The present invention provides a system working mode selection. Different working modes are designed according to the actual complex and changeable situations to achieve the purpose of detecting, processing, storing and reporting data, and provide an effective method for monitoring the stress state of the shackle.

[0048] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A force detection device for a D-shaped shackle, characterized in that: The device comprises a base and a housing; The outer wall of the base is provided with a groove matching the shape of the bottom of the D-shaped shackle, and a measuring hole is provided above the groove at the center surface corresponding to the width direction of the base, and a sensor module is fixed on the upper surface side of the measuring hole, and a signal compensation amplification module is fixed on the lower surface; the shell covers the base and the bottom of the D-shaped shackle, and a chip processing module, a wireless module and a power supply module are fixed on the shell; the sensor module and the signal compensation amplification module, and the signal compensation amplification module and the chip processing module are connected by wires; The base is a C-shaped body, comprising two parts connected by plugging, and the connection is located on one side of the center plane in the width direction of the C-shaped body; The base is a metal base, and two parts of the base are connected by a wedge-shaped groove and a wedge-shaped convex strip and then glued into one body.

2. The force detection device for a D-shaped shackle according to claim 1, characterized in that: The measuring hole is a bridge-shaped hole.

3. The force detection device for a D-shaped shackle according to claim 1, characterized in that: The middle position of the outer arc surface of the base contacts the inner wall of the shell, and the two sides in the width direction of the shell are fitted with the two sides in the width direction of the base to form a circular hole covering the D-shaped shackle.

4. The force detection device for a D-shaped shackle according to claim 1, characterized in that: The shell is made of engineering plastics and is symmetrically divided into two parts along the center plane in the thickness direction, and the two parts are glued together into one.

5. The force detection device for a D-shaped shackle according to claim 4, characterized in that: The two sides of the shell in the width direction are higher than the two sides of the base in the width direction, and the bottom surface of the raised section is clamped to the top surfaces on both sides of the base.

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