Intelligent fastener device

Abstract

The invention relates to the technical field of fasteners, and discloses an intelligent fastener device which comprises a fastener body, the fastener body comprises a fastener part and a sensor part, and the sensor part is arranged on the fastener part; the sensor part is in signal connection with the intelligent control box; and the remote server is in communication connection with the intelligent control box. The deformation amount of the fastener body is accurately detected through the linear sensor, continuous on-line monitoring on stress of key positions of the fastener body and data output are achieved by arranging the sensor part, and early warning is given out before bolt pre-tightening force reduction, looseness or breakage. The safety of equipment can be effectively improved, the maintenance cost is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, and in particular to an intelligent fastener device. Background Art

[0002] Fasteners are indispensable parts used to connect mechanical components and fix devices. Bolts and nuts are one of the most widely used connection and fastening accessories in modern structures and mechanical equipment.

[0003] A Chinese patent with publication number CN201180721Y discloses a fastener. It includes a bolt head and a screw rod, the front section of the screw rod is provided with a threaded section, and the root of the screw rod is provided with a keyway or an external hexagonal shape. The invention provides a keyway or an external hexagonal shape at the root of the screw rod, changes the mode of using the bolt head as a torque transmission mode, uses the bolt head as an axial limiter, and the keyway or external hexagonal shape at the root of the screw rod plays a role in transmitting rotational torque. It is suitable for application on steel grid bolt ball nodes.

[0004] However, in the prior art, the conventional fastener device has the following problems:

[0005] 1. Since static load data cannot be collected, such as buildings and steel structures, it is impossible to detect in advance the loosening of bolts, equipment overload, abnormal vibration, etc. during equipment operation, which often leads to serious equipment damage and even casualties;

[0006] 2. Since data cannot be collected in remote areas or the collection cost is high, traditional manual maintenance in remote areas or special environments will cause huge maintenance costs and personnel safety hazards;

[0007] 3. Due to the lack of analytical data on key locations during equipment operation, technical designers are unable to understand the actual operation of the equipment, and are unable to make timely transformation and upgrade plans;

[0008] 4. Weak network infrastructure makes data transmission difficult.

[0009] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop an intelligent fastener device. Summary of the invention

[0010] The object of the present invention is to provide an intelligent fastener device to solve the problems raised in the above background technology.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] An intelligent fastener device, characterized in that it comprises a fastener body, wherein the fastener body comprises a fastener part and a sensor part, and the sensor part is arranged on the fastener part;

[0013] An intelligent control box, wherein the sensor unit is connected to the intelligent control box by signal;

[0014] A remote server is communicatively connected with the intelligent control box.

[0015] As a preferred technical solution, the fastener part includes a threaded part, a rod part is integrally mounted on the bottom end of the threaded part, and a head part is integrally formed on the bottom end of the rod part.

[0016] As a preferred technical solution, the sensor part includes a linear sensor, which is installed on the threaded part; a temperature sensor and a data power interface, which are both installed inside the rod part.

[0017] As a preferred technical solution, a PLC controller and a wireless router are provided in the intelligent control box.

[0018] As a preferred technical solution, the PLC controller is connected to the linear sensor and the temperature sensor signal.

[0019] As a preferred technical solution, the PLC controller is communicatively connected to the remote server via a wireless router.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention accurately detects the deformation of the fastener body through a linear sensor, and then derives the real-time force change and service life of the fastener body. The PLC controller deduces the preload force through calculation. Compared with the preload stress indicating bolts in the prior art, it has the advantages of high precision and digitized results, and can transmit the measured preload force value to a remote server through a wireless router for online monitoring of the preload force value. The intelligent fastener device, without changing the basic size and mechanical properties of the bolt, realizes continuous online monitoring of the force at the key position of the fastener body and outputs these data by setting a sensor part, and issues an early warning before the bolt preload force decreases, loosens or breaks, which can effectively improve the safety of the equipment, reduce maintenance costs, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a system diagram of an intelligent fastener device of the present invention.

[0022] Figure 2 The figure is a schematic diagram of the structure of a fastener part in an intelligent fastener.

[0023] In the accompanying drawings: 1, fastener part; 101, threaded part; 102, rod part; 103, head part. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0025] Embodiment 1

[0026] See also Figure 1-2 As shown, the present invention is an intelligent fastener device, including a fastener body, an intelligent control box, and a remote server. The fastener body includes a fastener part 1 and a sensor part. The sensor part is installed on the fastener part 1, the sensor part is connected to the intelligent control box by signal, and the remote server is connected to the intelligent control box by communication.

[0027] The fastener part 1 includes a threaded part 101, a rod part 102 is installed at one end of the threaded part 101, a head part 103 is provided at one end of the rod part 102, the threaded part 101, the rod part 102, and the head part 103 are connected in sequence and formed as one piece, wherein the sensor part includes a linear sensor, a temperature sensor, and a data power interface.

[0028] The linear sensor is made of copper and is covered with an insulating layer with a certain degree of elasticity. The threaded portion 101 is provided with threads, and the linear sensor is wound and installed on the threads of the threaded portion 101. Due to the effect of the preload, the size of the fastener body will be elongated and the diameter will be reduced. We wrap the special linear sensor around the bottom of the thread of the threaded portion 101. When the linear sensor is energized, the coil will generate a resistance value. This resistance value will change accordingly with the change in the size of the threaded portion 101 (the bolt is elongated, the distance between the two adjacent coils increases, the bolt diameter becomes thinner, and the coil is wound straight).

[0029] The diameter of the coil decreases, and the coil resistance value also changes accordingly). The PLC controller deduce and calculates the change of the preload force on the threaded portion 101 by detecting the change of the internal resistance value of the coil. The linear sensor can be understood as an energized coil.

[0030] The smart control box is equipped with a PLC controller and a wireless router. The PLC controller is connected to the linear sensor and the temperature sensor signal. The model of the PLC controller is Raspberry Pi Core3. The model of the wireless router is TP-Link.

[0031] The rod 102 is a bare rod structure, and the temperature sensor and the data power interface are installed inside the rod 102. The temperature sensor transmits the temperature data to the PLC controller through the cable. After the linear sensor detects the deformation of the bolt, the PLC controller converts it into the actual force of the threaded part 101. Due to thermal expansion and contraction, the temperature will affect the deformation of the bolt, so the temperature is an important influencing value. The PLC controller needs to filter out the influence of temperature when calculating.

[0032] The PLC controller is connected to the remote server through a wireless router. The remote server includes the customer's control center, the operator's handheld device, and the operator's onboard device.

[0033] The PLC controller in the intelligent control box derives and calculates the change of the preload force on the threaded portion 101 through a linear sensor for monitoring. The PLC controller derives the preload force through calculation. Compared with the preload stress indicating bolts in the prior art, it has the advantages of high accuracy and digitized results. It can also transmit the measured preload force value to a remote server through a wireless router for online monitoring of the preload force value.

[0034] The PLC controller sends the monitored preload value of the fastener body to the customer's control center, the operator's handheld device, and the operator's airborne equipment through a wireless router, achieving multi-directional monitoring.

[0035] The intelligent fastener of this embodiment is intended to accurately detect the deformation of the fastener body through a linear sensor, and then deduce the real-time force change and service life of the fastener body. According to the actual use environment and detection purpose, by adjusting the sensor installation range and different types and installation positions of the data interface, it can meet the different monitoring purposes and use environments of various types of fasteners.

[0036] The intelligent fastener device in this embodiment, without changing the basic size and mechanical properties of the bolt, realizes continuous online monitoring of the forces at key positions of the fastener body and outputs these data by setting up a sensor unit, and issues an early warning before the bolt preload drops, loosens or breaks, which can effectively improve the safety of the equipment, reduce maintenance costs, and extend the service life of the equipment.

[0037] Embodiment 2

[0038] See also Figure 1-2 As shown, the present invention is an intelligent fastener device, including a fastener body, an intelligent control box, and a remote server. The fastener body includes a fastener part 1 and a sensor part. The sensor part is installed on the fastener part 1, the sensor part is connected to the intelligent control box by signal, and the remote server is connected to the intelligent control box by communication.

[0039] The fastener part 1 includes a threaded part 101, a rod part 102 is installed at one end of the threaded part 101, a head part 103 is provided at one end of the rod part 102, the threaded part 101, the rod part 102, and the head part 103 are connected in sequence and formed as one piece, wherein the sensor part includes a linear sensor, a temperature sensor, and a data power interface.

[0040] The linear sensor is made of copper and is covered with an insulating layer with a certain elasticity. The threaded portion 101 is provided with threads, and the linear sensor is wound and installed on the threads of the threaded portion 101. Due to the effect of the preload, the size of the fastener body will be elongated and the diameter will be thinner. We wrap the special linear sensor around the bottom of the thread of the threaded portion 101. When the linear sensor is energized, the coil will generate a resistance value, which will change accordingly with the change in the size of the threaded portion 101 (the bolt is elongated, the distance between the two adjacent coils increases, the bolt diameter becomes thinner, the coil winding diameter becomes smaller, and the coil resistance value will also change accordingly). The PLC controller deduces and calculates the change in the preload force on the threaded portion 101 by detecting the change in the internal resistance value of the coil. The linear sensor can be understood as an energized coil.

[0041] The smart control box is equipped with a PLC controller and a wireless router. The PLC controller is connected to the linear sensor and the temperature sensor signal. The model of the PLC controller is Raspberry Pi Core3. The model of the wireless router is TP-Link.

[0042] The head 103 is a bare rod structure, and the temperature sensor and the data power interface are installed on the head 103. The temperature sensor transmits the temperature data to the PLC controller through the cable. After the linear sensor detects the deformation of the bolt, the PLC controller converts it into the actual force of the threaded part 101. Due to thermal expansion and contraction, the temperature will affect the deformation of the bolt, so the temperature is an important influencing value. The PLC controller needs to filter out the influence of temperature when calculating.

[0043] The PLC controller is connected to the remote server through a wireless router. The remote server includes the customer's control center, the operator's handheld device, and the operator's onboard device.

[0044] The PLC controller in the intelligent control box uses a linear sensor to deduce and calculate the change of the preload force on the threaded portion 101 for monitoring. The PLC controller calculates the preload force, which has the advantages of high accuracy and digitized results compared with the preload stress indicator bolts in the prior art. It can also transmit the measured preload force value to a remote server through a wireless router for online monitoring of the preload force value. The PLC controller sends the monitored preload force value of the fastener body to the customer's control center, the operator's handheld device, and the operator's airborne device through the wireless router to achieve multi-directional monitoring.

[0045] The intelligent fastener of this embodiment is intended to accurately detect the deformation of the fastener body through a linear sensor, and then deduce the real-time force change and service life of the fastener body. According to the actual use environment and detection purpose, by adjusting the sensor installation range and different types and installation positions of the data interface, it can meet the different monitoring purposes and use environments of various types of fasteners.

[0046] The intelligent fastener device in this embodiment, without changing the basic size and mechanical properties of the bolt, realizes continuous online monitoring of the forces at key positions of the fastener body and outputs these data by setting up a sensor unit, and issues an early warning before the bolt preload drops, loosens or breaks, which can effectively improve the safety of the equipment, reduce maintenance costs, and extend the service life of the equipment.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0048] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0050] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent fastener device, characterized in that: The invention comprises a fastener body, wherein the fastener body comprises a fastener part (1) and a sensor part, wherein the sensor part is arranged on the fastener part (1); An intelligent control box, wherein the sensor unit is signal-connected to the intelligent control box; A remote server is communicatively connected with the intelligent control box.

2. The intelligent fastener device according to claim 1, characterized in that: The fastener part (1) comprises a threaded part (101), a rod part (102) is integrally mounted on the bottom end of the threaded part (101), and a head part (103) is integrally formed on the bottom end of the rod part (102).

3. The intelligent fastener device according to claim 1, characterized in that: The sensor part comprises a linear sensor, which is mounted on the threaded part (101); a temperature sensor and a data power interface, which are both mounted inside the rod part (102).

4. The intelligent fastener device according to claim 3, characterized in that: The intelligent control box is provided with a PLC controller and a wireless router.

5. The intelligent fastener device according to claim 4, characterized in that: The PLC controller is connected with the linear sensor and the temperature sensor signal.

6. The intelligent fastener device according to claim 4, characterized in that: The PLC controller is connected to the remote server through a wireless router.

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