Intelligent trundle capable of detecting wear state and detection method of intelligent trundle

Abstract

The invention discloses an intelligent trundle capable of detecting the wear state and a detection method thereof.The intelligent trundle comprises a support, a supporting shaft, a hub and a tire, a groove is formed in the inner side of the tire, a magnetic sheet is arranged in the groove, and a Hall sensor capable of sensing the magnetic sheet is arranged on the hub; a signal receiving and transmitting system in communication connection with the Hall sensor is arranged on the support and is in communication connection with a detection system used for displaying the abrasion state of the trundle. When the abrasion degree of the tire reaches a certain degree, the magnetic sheet in the tire is separated from the tire, so that the Hall sensor cannot sense a magnetic field generated by the magnetic sheet, then information is transmitted to the signal receiving and transmitting system, and then the information is fed back to the detection system through the signal receiving and transmitting system to display the abrasion state of the trundle. In this way, real-time monitoring of the abrasion state of the trundle can be effectively achieved, and therefore a powerful guarantee is provided for stable operation of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of casters, and in particular to an intelligent caster capable of detecting a wear state and a detection method thereof. Background Art

[0002] Among many mobile devices, casters are key components for achieving convenient mobility of equipment. During the long-term use of traditional casters, due to the lack of effective wear detection methods, users are often unable to know the degree of wear of the casters in a timely manner. Usually, it will only be discovered when the wear of the casters seriously affects the mobility of the equipment, such as obvious shaking, jamming, or even damage to the equipment. This will not only interrupt the normal operation of the equipment, causing production stagnation or work delays, but may also cause safety accidents and endanger the safety of operators. For example, industrial transport vehicles, medical equipment mobile trolleys, logistics storage shelves mobile wheels, etc., need to perform real-time detection of caster wear to avoid accidents. For example, the patent document with publication number CN107599743A discloses a self-warning shopping cart caster with brake block wear, which derives the wear status of the caster by calculation, and cannot perform real-time detection of the wear status of the caster. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an intelligent caster and a detection method thereof that can detect the wear status of the caster in real time.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A smart caster capable of detecting wear status comprises a bracket, a support shaft arranged on the bracket, a wheel hub arranged on the support shaft, and a tire arranged on the wheel hub, wherein a groove is arranged on the inner side of the tire, a magnetic sheet is arranged in the groove, a Hall sensor for sensing the magnetic sheet is arranged on the wheel hub, a signal transceiver system communicatively connected to the Hall sensor is arranged on the bracket, and the signal transceiver system is communicatively connected to a detection system for displaying the wear status of the caster.

[0006] In a preferred embodiment of the present invention, a laser displacement sensor is provided on the bracket and is communicatively connected to the signal transceiver system. The laser displacement sensor includes a laser transmitter disposed on one side of the bracket and a laser receiver disposed on the other side of the bracket.

[0007] In a preferred embodiment of the present invention, the laser transmitter is disposed on the vertical center plane of the tire, and the position of the transmitting end port of the laser transmitter is higher than the highest point of the wheel hub and lower than the highest point of the moving track of the magnetic sheet.

[0008] In a preferred embodiment of the present invention, a recessed area surrounding the groove is provided on the inner side of the tire and located at the groove, and a sealing gasket that can cover the groove is provided on the recessed area so that the magnetic sheet can be embedded in the tire.

[0009] In a preferred solution of the present invention, a through hole is provided on the hub and located at the groove, and the sensing end of the Hall sensor corresponds to the through hole.

[0010] The present invention also provides a method for detecting the wear status of an intelligent caster, using the intelligent caster described in the claim, and the detection method includes: the Hall sensor senses the magnetic field generated by the magnetic sheet, and obtains detection data based on the magnetic field; when the tire wear depth reaches the position of the groove, the magnetic sheet detaches from the tire, and the Hall sensor senses the change in the magnetic field generated by the magnetic sheet, thereby obtaining first signal information and feeding it back to a signal transceiver system; when the signal transceiver system receives the first signal information, it sends it to the detection system, and the detection system displays information that the tire is in a severe wear stage.

[0011] In a preferred embodiment of the present invention, the detection method further comprises: when the tire wear depth reaches the position of the transmitting end port of the laser transmitter, the laser receiver receives the laser emitted by the laser transmitter, thereby obtaining the second signal information and feeding it back to the signal transceiver system, and when the signal transceiver system receives the second signal information, it sends it to the detection system;

[0012] When the detection system receives the second signal information sent by the signal transceiver system and does not receive the first signal information sent by the signal transceiver system, the detection system will display information that the tire is in a partial complete wear stage;

[0013] When the detection system receives the first signal information and the second signal information sent by the signal transceiver system, the detection system will display the information that the tire is in the overall complete wear stage.

[0014] The beneficial effects of the present invention are as follows: the intelligent caster includes a bracket, a support shaft, a wheel hub and a tire, a groove is provided on the inner side of the tire, a magnetic sheet is provided in the groove, a Hall sensor that can be used to sense the magnetic sheet is provided on the wheel hub, a signal transceiver system that is communicatively connected to the Hall sensor is provided on the bracket, and the signal transceiver system is communicatively connected to a detection system for displaying the wear status of the caster. In this way, when the degree of wear of the tire reaches a certain level, the magnetic sheet in the tire will detach from the tire, so that the Hall sensor cannot sense the magnetic field generated by the magnetic sheet, and then the information will be transmitted to the signal transceiver system, and then fed back to the detection system through the signal transceiver system to display the wear status of the caster, thereby effectively realizing real-time monitoring of the wear status of the caster, thereby providing a strong guarantee for the stable operation of the equipment. A detection method for the wear status of an intelligent caster is also provided, which can display different wear states of the caster, so as to make a corresponding processing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a smart caster capable of detecting wear status according to the present invention;

[0016] Figure 2 The present invention is a flow chart of a method for detecting the wear state of an intelligent caster. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0018] Reference Figure 1 , a smart caster capable of detecting wear status, comprising a bracket 1, a support shaft 2 arranged on the bracket 1, a hub 3 arranged on the support shaft 2, and a tire 4 arranged on the hub 3, wherein a groove 41 is arranged on the inner side of the tire 4, a magnetic sheet 5 is arranged in the groove 41, a Hall sensor 6 for sensing the magnetic sheet 5 is arranged on the hub 3, and a signal transceiver system communicatively connected to the Hall sensor 6 is arranged on the bracket 1, and the signal transceiver system is communicatively connected to a detection system for displaying the wear status of the caster. In this way, when the wear degree of the tire 4 reaches a certain level, the magnetic sheet 5 in the tire 4 will be separated from the tire 4, so that the Hall sensor 6 cannot sense the magnetic field generated by the magnetic sheet 5, and then the information will be transmitted to the signal transceiver system, and then fed back to the detection system through the signal transceiver system for display, so that the real-time monitoring of the wear status of the caster can be effectively realized, thereby providing a strong guarantee for the stable operation of the equipment.

[0019] In this solution, the bracket 1 is provided with a laser displacement sensor 7 that is communicatively connected to the signal transceiver system, and the laser displacement sensor 7 includes a laser transmitter 71 disposed on one side of the bracket 1, and a laser receiver 72 disposed on the other side of the bracket 1. Further, the laser transmitter 71 is disposed on the vertical center plane of the tire 4, and the position of the transmitting end port of the laser transmitter 71 is higher than the highest point of the wheel hub 3 and lower than the highest point of the moving track of the magnetic sheet 5. In this way, the laser displacement sensor 7 is coordinated with the Hall sensor 6 to form a multi-sensor collaborative detection architecture, which enables it to accurately judge the wear state of the caster.

[0020] In this solution, a recessed area 42 surrounding the groove 41 is provided on the inner side of the tire 4 and located at the groove 41 , and a sealing gasket 8 covering the groove 41 is provided on the recessed area 42 so that the magnetic sheet 5 is embedded in the tire 4 .

[0021] In this solution, a through hole 31 is provided on the hub 3 at the groove 41 , and the sensing end of the Hall sensor 6 corresponds to the through hole 31 , thereby improving the detection accuracy of the Hall sensor 6 .

[0022] In this solution, the assembly process of the smart caster is as follows: the support shaft 2 is accurately installed and fixed at the preset position of the bracket 1 to ensure its stability and verticality. Next, the wheel hub 3 is put on the support shaft 2 to ensure that the wheel hub 3 can rotate freely and flexibly around the support shaft 2 without jamming. A groove 41 is processed on the inner side of the tire 4 according to the design requirements, and the magnetic piece 5 is embedded in the groove 41. Then, a sealing gasket 8 is bonded to the recessed area 42 at the groove 41 to seal the magnetic piece 5 so that the magnetic piece 5 is completely enclosed in the tire 4 to prevent the magnetic piece 5 from being disturbed by external factors or detaching from the groove 41. A through hole 31 is opened in the wheel hub 3 at the position corresponding to the groove 41, and the Hall sensor 6 is installed at the through hole 31. Its position is carefully adjusted so that the sensing end is completely aligned with the through hole to ensure the accuracy of the magnetic field induction. After completing the above operations, the tire 4 is put on the wheel hub 3 to ensure that the position of the magnetic piece 5 corresponds to that of the Hall sensor 6. Finally, the laser displacement sensor 7 is installed on the bracket 1, and the laser transmitter 71 and the laser receiver 72 are fixed at the specified positions on both sides of the bracket 1 using a high-precision positioning tool to ensure that the transmitting end port of the laser transmitter 71 is at a predetermined height to meet the detection requirements.

[0023] After the smart caster is assembled, the detection system is fully initialized. Establish a stable and reliable communication connection between the detection system and the signal transceiver system to ensure the smoothness and accuracy of data transmission. At the same time, use professional calibration equipment to strictly calibrate the Hall sensor 6 and the laser displacement sensor 7. Use a standard magnetic field source to calibrate the Hall sensor 6, and adjust the sensor parameters so that it can accurately identify the changes in the magnetic field intensity of the magnetic sheet 5, ensuring that accurate detection data can be stably output under different environmental conditions. For the laser displacement sensor 7, calibrate with the help of a reflector at a known distance, accurately measure the various parameters of laser emission and reception, such as laser wavelength, emission angle, receiving sensitivity, etc., determine its normal operating parameter range, and ensure that the sensor measurement accuracy meets the requirements of caster wear detection.

[0024] The signal transceiver system is the key hub for data processing and transmission, and includes a microcontroller unit (MCU), which is responsible for coordinating the logic control of the entire process of data acquisition, processing and transmission; a wireless communication module, which integrates wireless communication chips such as Bluetooth and Wi-Fi to achieve wireless data interaction with the detection system and ensure the convenience and flexibility of data transmission; a signal conditioning circuit, which performs fine processing such as amplification, filtering, and analog-to-digital conversion on the weak electrical signals of the Hall sensor 6 and the pulse signals of the laser displacement sensor 7 to improve signal quality and identifiability; a storage unit, which is used to safely store sensor calibration data, historical detection data, and processor operating programs and configuration parameters, to provide data support for stable system operation and data analysis.

[0025] Reference Figure 2 The present invention also provides a method for detecting the wear status of an intelligent caster. Using the intelligent caster described in the claim, the detection system will determine the wear status of the caster according to the received data combination, and display the wear status information on the corresponding display interface (such as a display screen connected to the device or a mobile terminal application), reminding the user to take maintenance measures or replace the tire in time 4.

[0026] Specifically, the detection method includes: the Hall sensor 6 senses the magnetic field generated by the magnetic sheet 5, and obtains detection data based on the magnetic field; when the wear depth of the tire 4 reaches the position of the groove 41, the magnetic sheet 5 detaches from the tire 4, and the Hall sensor 6 senses the change in the magnetic field generated by the magnetic sheet 5, thereby obtaining the first signal information and feeding it back to the signal transceiver system. When the signal transceiver system receives the first signal information, it will send it to the detection system, and the detection system will display information that the tire 4 is in a severe wear stage, prompting the user to prepare to replace the tire 4 or the wheel.

[0027] In this embodiment, the detection method also includes: when the wear depth of the tire 4 reaches the position of the transmitting end port of the laser transmitter 71, the laser receiver 72 receives the laser emitted by the laser transmitter 71, thereby obtaining the second signal information and feeding it back to the signal transceiver system. When the signal transceiver system receives the second signal information, it sends it to the detection system.

[0028] When the detection system receives the second signal information sent by the signal transceiver system and does not receive the first signal information sent by the signal transceiver system, the detection system will display the information that the tire 4 is in the stage of partial complete wear, prompting the user that the tire 4 may be severely worn somewhere due to external environmental factors, and it is necessary to check the external environmental factors to avoid the recurrence of the problem and replace the tire 4 or wheel.

[0029] When the detection system receives the first signal information and the second signal information sent by the signal transceiver system, the detection system will display the information that the tire 4 is in the stage of overall complete wear, prompting the user to replace the tire 4 or wheel immediately.

[0030] The professionals should further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0031] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0032] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A smart caster capable of detecting wear status, comprising a bracket (1), a support shaft (2) arranged on the bracket (1), a wheel hub (3) arranged on the support shaft (2), and a tire (4) arranged on the wheel hub (3), characterized in that: A groove (41) is provided on the inner side of the tire (4), a magnetic sheet (5) is provided in the groove (41), a Hall sensor (6) for sensing the magnetic sheet (5) is provided on the wheel hub (3), a signal transceiver system communicatively connected to the Hall sensor (6) is provided on the bracket (1), and the signal transceiver system is communicatively connected to a detection system for displaying the wear status of the caster.

2. The intelligent caster capable of detecting wear status according to claim 1, characterized in that: The bracket (1) is provided with a laser displacement sensor (7) which is communicatively connected to the signal transceiver system, and the laser displacement sensor (7) comprises a laser transmitter (71) arranged on one side of the bracket (1), and a laser receiver (72) arranged on the other side of the bracket (1).

3. The intelligent caster capable of detecting wear status according to claim 2, characterized in that: The laser emitter (71) is arranged on the vertical center plane of the tire (4), and the position of the emission end port of the laser emitter (71) is higher than the highest point of the wheel hub (3) and lower than the highest point of the moving track of the magnetic sheet (5).

4. The intelligent caster capable of detecting wear status according to claim 2, characterized in that: A recessed area (42) surrounding the recessed groove (41) is provided on the inner side of the tire (4) and located at the recessed groove (41); a sealing gasket (8) that can cover the recessed groove (41) is provided on the recessed area (42) so that the magnetic sheet (5) is embedded in the tire (4).

5. The intelligent caster capable of detecting wear status according to claim 4, characterized in that: A through hole (31) is provided on the wheel hub (3) and located at the groove (41), and the sensing end of the Hall sensor (6) corresponds to the through hole (31).

6. A method for detecting the wear state of an intelligent caster, using the intelligent caster as claimed in any one of claims 2 to 5, characterized in that: The detection method comprises: the Hall sensor (6) senses the magnetic field generated by the magnetic sheet (5), and obtains detection data based on the magnetic field; when the wear depth of the tire (4) reaches the position where the groove (41) is located, the magnetic sheet (5) is separated from the tire (4), and the Hall sensor (6) senses the change in the magnetic field generated by the magnetic sheet (5), thereby obtaining first signal information and feeding it back to a signal transceiver system; when the signal transceiver system receives the first signal information, it sends it to the detection system, and the detection system displays information that the tire (4) is in a severe wear stage.

7. The method for detecting the wear state of a smart caster according to claim 6, characterized in that: The detection method further comprises: when the wear depth of the tire (4) reaches the position of the transmitting end port of the laser transmitter (71), the laser receiver (72) receives the laser emitted by the laser transmitter (71), thereby obtaining second signal information and feeding it back to the signal transceiver system; after the signal transceiver system receives the second signal information, it sends it to the detection system; When the detection system receives the second signal information sent by the signal transceiver system and does not receive the first signal information sent by the signal transceiver system, the detection system will display information that the tire (4) is in a partial complete wear stage; When the detection system receives the first signal information and the second signal information sent by the signal transceiver system, the detection system will display information indicating that the tire (4) is in the overall complete wear stage.

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