Rotary drag chain operation monitoring method and rotary drag chain operation monitoring device

Abstract

The invention discloses a method for monitoring operation of a rotating drag chain. The method comprises a detection step, a judgment step and a shutdown step. The detection step specifically comprises the steps of detecting position coordinates of a rotary drag chain, obtaining a drag chain position state feedback signal, detecting a relative rotation angle of a first rotation part and a second rotation part, and obtaining a rack rotation signal; the judgment step specifically comprises the step of processing a drag chain position state feedback signal and a rack rotation signal so as to judge whether the position coordinate of the rotary drag chain is matched with the relative rotation angle of the first rotation part and the second rotation part or not; in the stopping step, when the position coordinate of the rotary drag chain is not matched with the relative rotation angle of the first rotating part and the second rotating part, the actual position coordinate of the rotary drag chain is abnormal, and the first rotating part and the second rotating part stop rotating at the moment. Potential safety hazards caused by abnormal pull-in of the rotating drag chain and the rotating part of the rack are avoided. The invention further discloses a rotating drag chain operation monitoring device.

Description

Technical Field

[0001] The present invention relates to the technical field of drag chain detection, and more specifically, to a method and a device for monitoring the operation of a rotary drag chain. Background Art

[0002] Single-Photon Emission Computed Tomography (SPECT) is a commonly used clinical imaging device in the field of nuclear medicine. It can evaluate the functions of organs such as the thyroid, kidneys, heart, brain, and lungs, and plays an important role in the diagnosis of related diseases. In addition, SPECT also plays a key role in the clinical diagnosis and staging of a variety of malignant tumors. Compared with traditional gamma cameras, SPECT can not only reflect the function and morphology of organs and tissues, but also observe the changes in organs and diseases in three dimensions, and display this information through tomographic imaging in different directions.

[0003] The rotation angle of the SPECT rack is usually greater than 360° but less than 720°. The cable connection between the fixed part and the rotating part of the rack is arranged in the form of a rotating drag chain. In this structure, the rotating drag chain is in a bidirectional bending state inside the rack. One side of the rotating drag chain fits tightly with the fixed part of the rack by its own gravity, and the other side is attracted to the rotating part of the rack through a soft magnet. During the rotation of the rotating part of the rack, if the attraction between the soft magnet and the rotating drag chain is abnormal, it may cause the rotating drag chain to fall off, the rotating drag chain and its internal cables to be damaged, and pose a safety risk to equipment and personnel.

[0004] Therefore, how to avoid the potential safety hazard caused by the abnormal attraction between the rotating drag chain and the rotating part of the frame has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a method for monitoring the operation of a rotary drag chain to avoid potential safety hazards caused by abnormal engagement of the rotary drag chain with the rotating part of the frame.

[0006] Another object of the present invention is to provide a rotating drag chain operation monitoring device for detecting the motion trajectory of the rotating drag chain on the frame through the above-mentioned rotating drag chain operation monitoring method.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A method for monitoring the operation of a rotary drag chain is used to detect the motion trajectory of a rotary drag chain on a frame, wherein the frame comprises a fixed portion, a first rotating portion, and a second rotating portion, wherein the first rotating portion and the second rotating portion are coaxially arranged, and the first rotating portion is arranged on the outer ring of the second rotating portion, and at least one of the first rotating portion and the second rotating portion is rotatable relative to the fixed portion, and the rotary drag chain is arranged between the first rotating portion and the second rotating portion, and one end of the rotary drag chain is connected to the inner wall of the first rotating portion, and the other end is connected to the outer wall of the second rotating portion, comprising the steps of:

[0009] Detection: detecting the position coordinates of the rotating drag chain and obtaining a drag chain position state feedback signal, detecting the relative rotation angle between the first rotating part and the second rotating part and obtaining a rack rotation signal;

[0010] Determine, and process the drag chain position state feedback signal and the rack rotation signal to determine whether the position coordinates of the rotating drag chain match the relative rotation angles of the first rotating part and the second rotating part;

[0011] Stopping: when the position coordinates of the rotary drag chain do not match the relative rotation angle of the first rotating part and the second rotating part, the first rotating part and the second rotating part stop rotating.

[0012] Optionally, in the above-mentioned rotating drag chain operation monitoring method, the detection step includes a first step and a second step, and the first step is specifically to detect the position coordinates of the rotating drag chain and obtain the drag chain position state feedback signal;

[0013] The first rotating part is rotatable relative to the fixed part, and the second rotating part is fixed relative to the fixed part. The second step specifically detects the rotation angle of the first rotating part and obtains the rack rotation signal.

[0014] Optionally, in the above-mentioned method for monitoring the operation of a rotary drag chain, the first step is specifically:

[0015] Detect the fitting length between the rotating drag chain and the inner wall of the first rotating part to obtain the position coordinates of the rotating drag chain, and / or detect the fitting length between the rotating drag chain and the outer wall of the second rotating part to obtain the position coordinates of the rotating drag chain.

[0016] Optionally, in the above-mentioned method for monitoring the operation of the rotary drag chain, the first step is specifically to detect the position coordinates of the rotary drag chain by a first detection component, and obtain a position state feedback signal of the drag chain;

[0017] The first detection component includes at least one of a pressure sensor, a photoelectric sensor, a fiber optic sensor and a Hall effect sensor.

[0018] Optionally, in the above-mentioned method for monitoring the operation of the rotating drag chain, a plurality of the first detection components are arranged at intervals on the first rotating part, so that the fitting length between the rotating drag chain and the inner wall of the first rotating part is obtained by the number or position of the first detection components triggered by the rotating drag chain; and / or,

[0019] A plurality of the first detection components are disposed at intervals on the second rotating part, so that the fitting length between the rotating drag chain and the outer wall of the second rotating part can be obtained according to the number or positions of the first detection components triggered by the rotating drag chain.

[0020] Optionally, in the above-mentioned method for monitoring the operation of a rotary drag chain, the second step is specifically to detect the rotation angle of the first rotating part by a second detection component to obtain the rack rotation signal;

[0021] The second detection component includes at least one of an encoder, a photoelectric sensor, a fiber optic sensor, and a Hall effect sensor.

[0022] Optionally, in the above-mentioned method for monitoring the operation of a rotating drag chain, a gear to be measured is rotatably provided on the fixed part, and the gear to be measured is engaged with meshing teeth provided on the outer wall of the first rotating part. The second detection component is used to detect the rotation angle of the gear to be measured to obtain the rotation angle of the first rotating part.

[0023] Optionally, in the above-mentioned method for monitoring the operation of a rotary drag chain, an alarm step is further included after the shutdown step, and the alarm step is to send an alarm signal through an alarm device.

[0024] Optionally, in the above-mentioned rotating drag chain operation monitoring method, the method for detecting the motion trajectory of the rotating drag chain on the rack by using the above-mentioned rotating drag chain operation monitoring method includes:

[0025] A first detection component is provided at least on one of the first rotating part and the second rotating part, and is used to detect the fitting length between the rotary drag chain and the first rotating part and / or the second rotating part, and obtain a position state feedback signal of the drag chain;

[0026] a second detection component, used for detecting a relative rotation angle between the first rotating part and the second rotating part, and obtaining the rack rotation signal;

[0027] The controller is used to receive the drag chain position state feedback signal and the frame rotation signal, and determine whether the position coordinates of the rotating drag chain match the relative rotation angles of the first rotating part and the second rotating part through the drag chain position state feedback signal and the frame rotation signal. If they do not match, the controller is used to control the first rotating part and the second rotating part to stop rotating.

[0028] Optionally, in the above-mentioned rotating drag chain operation monitoring device, the rotating drag chain is attracted to the first rotating part through a magnetic attraction component, and the magnetic attraction component includes a first attraction component and a second attraction component, the first attraction component is used to be arranged on the rotating drag chain, and the second attraction component is used to be arranged on the inner wall of the first rotating part, and the first attraction component and the second attraction component are used to attract each other.

[0029] The rotary drag chain operation monitoring method provided by the present invention includes a detection step, a judgment step and a shutdown step. The detection step specifically detects the position coordinates of the rotary drag chain, obtains a drag chain position state feedback signal, detects the relative rotation angle of the first rotating part and the second rotating part, and obtains a rack rotation signal; the judgment step specifically processes the drag chain position state feedback signal and the rack rotation signal to determine whether the position coordinates of the rotary drag chain match the relative rotation angle of the first rotating part and the second rotating part; the actual movement position and bending state of the rotary drag chain can be obtained from the drag chain position state feedback signal, and the theoretical movement position and bending state of the rotary drag chain can be obtained from the rack rotation signal. When the two do not match, it means that the actual position coordinates of the rotary drag chain are abnormal. The shutdown step specifically stops the first rotating part and the second rotating part when the position coordinates of the rotary drag chain do not match the relative rotation angle of the first rotating part and the second rotating part.

[0030] Compared with the prior art, the rotary drag chain operation monitoring method provided by the present invention detects the operation trajectory of the rotary drag chain in real time, and compares and adapts it with the relative rotation angle of the first rotating part and the second rotating part detected in real time. Once there is a deviation or mismatch between the two, it can be determined that the position coordinates of the rotary drag chain are abnormal. At this time, the frame can be controlled to stop and the operating personnel can be reminded to perform maintenance and inspection to avoid safety hazards caused by abnormal attraction between the rotary drag chain and the rotating part of the frame.

[0031] The rotary drag chain operation monitoring device provided by the present invention is used to detect the motion trajectory of the rotary drag chain on the frame through the above-mentioned rotary drag chain operation monitoring method, and includes a first detection component, a second detection component and a controller. The first detection component is at least arranged on one of the first rotating part and the second rotating part, and is used to detect the fitting length of the rotary drag chain with the first rotating part and / or the second rotating part, and obtain a drag chain position state feedback signal; the second detection component is used to detect the relative rotation angle of the first rotating part and the second rotating part, and obtain a frame rotation signal; the controller is used to receive the drag chain position state feedback signal and the frame rotation signal, and judge whether the position coordinates of the rotary drag chain match the relative rotation angle of the first rotating part and the second rotating part through the drag chain position state feedback signal and the frame rotation signal, and if not, the controller is used to control the first rotating part and the second rotating part to stop rotating.

[0032] Compared with the prior art, the rotary drag chain operation monitoring device provided by the present invention can determine whether the position coordinates of the rotary drag chain are abnormal through the suction length of the rotary drag chain and the first rotating part and / or the second rotating part and the relative rotation angle of the first rotating part and the second rotating part, and when an abnormality occurs, timely control the frame to shut down, thereby greatly reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a flow chart of the method for monitoring the operation of a rotary drag chain disclosed in an embodiment of the present invention;

[0035] Figure 2 It is a schematic block diagram of the structure of the rotary drag chain operation monitoring device disclosed in an embodiment of the present invention;

[0036] Figure 3 The real object of the rotating drag chain operation monitoring device disclosed in the embodiment of the present invention Figure 1 ;

[0037] Figure 4 The real object of the rotating drag chain operation monitoring device disclosed in the embodiment of the present invention Figure 2 ;

[0038] Figure 5 Schematic diagram of the engagement of the rotary drag chain and the first rotating part disclosed in the embodiment of the present invention Figure 1 ;

[0039] Figure 6Schematic diagram of the engagement of the rotary drag chain and the first rotating part disclosed in the embodiment of the present invention Figure 2 ;

[0040] Figure 7 The real object of the rotating drag chain operation monitoring device disclosed in the embodiment of the present invention Figure 3 .

[0041] Wherein, 100 is a fixed part, 110 is a first rotating part, 111 is a gear to be tested, and 120 is a second rotating part;

[0042] 200 is a rotary drag chain;

[0043] 300 is a first detection component;

[0044] 400 is a first suction component. DETAILED DESCRIPTION

[0045] The core of the present invention is to disclose a method for monitoring the operation of a rotary drag chain to avoid potential safety hazards caused by abnormal engagement of the rotary drag chain with the rotating part of a frame.

[0046] Another core of the present invention is to disclose a rotating drag chain operation monitoring device which detects the motion trajectory of the rotating drag chain on the frame through the above-mentioned rotating drag chain operation monitoring method.

[0047] The following embodiments are described with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention contents described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions to the inventions described in the claims. It should be noted that, for ease of description, only the parts related to the inventions are shown in the accompanying drawings. The embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0048] Combination Figure 1-Figure 7 The rotary drag chain operation monitoring method disclosed in the present invention is used to detect the motion trajectory of the rotary drag chain 200 on the frame, the frame includes a fixed part 100, a first rotating part 110 and a second rotating part 120, the first rotating part 110 and the second rotating part 120 are coaxially arranged, and the first rotating part 110 is arranged on the outer ring of the second rotating part 120, at least one of the first rotating part 110 and the second rotating part 120 is rotatable relative to the fixed part 100, the rotary drag chain 200 is arranged between the first rotating part 110 and the second rotating part 120, and one end of the rotary drag chain 200 is connected to the inner wall of the first rotating part 110, and the other end is connected to the outer wall of the second rotating part 120, the rotary drag chain operation monitoring method includes a detection step, a judgment step and a shutdown step.

[0049] S10, detection;

[0050] The position coordinates of the rotating drag chain 200 are detected, and a drag chain position state feedback signal is obtained, and the relative rotation angle of the first rotating part 110 and the second rotating part 120 is detected, and a rack rotation signal is obtained. The position coordinates of the rotating drag chain 200 include the coordinates of multiple positions on the extended length of the rotating drag chain 200 itself, which can reflect the position and bending state of the rotating drag chain 200 (the length of the overlapping part of the rotating drag chain 200).

[0051] S20. Judgment:

[0052] The drag chain position state feedback signal and the rack rotation signal are processed to determine whether the position coordinates of the rotating drag chain 200 match the relative rotation angles of the first rotating part 110 and the second rotating part 120. Specifically, the actual movement position and bending state of the rotating drag chain 200 can be obtained from the drag chain position state feedback signal, and the theoretical movement position and bending state of the rotating drag chain 200 can be obtained from the rack rotation signal. When the two do not match, it means that there is an abnormality in the actual position coordinates of the rotating drag chain 200.

[0053] S30, shutdown;

[0054] When the position coordinates of the rotating drag chain 200 match the relative rotation angle of the first rotating part 110 and the second rotating part 120, the first rotating part 110 and the second rotating part 120 continue to operate normally; when the position coordinates of the rotating drag chain 200 do not match the relative rotation angle of the first rotating part 110 and the second rotating part 120, both the first rotating part 110 and the second rotating part 120 stop rotating.

[0055] Compared with the prior art, the present invention detects the running trajectory of the rotating drag chain 200 in real time, and compares and adapts it with the relative rotation angle of the first rotating part 110 and the second rotating part 120 detected in real time. Once there is a deviation or mismatch between the two, it can be determined that the position coordinates of the rotating drag chain 200 are abnormal. At this time, the frame can be controlled to stop and the operating personnel can be reminded to perform maintenance and inspection to avoid safety hazards caused by abnormal attraction between the rotating drag chain 200 and the rotating part of the frame.

[0056] In one embodiment, the detection step includes a first step and a second step. The first step is specifically to detect the position coordinates of the rotating drag chain 200 and obtain a drag chain position status feedback signal; the first rotating part 110 is rotatable relative to the fixed part 100, and the second rotating part 120 is fixed relative to the fixed part 100. The second step is specifically to detect the rotation angle of the first rotating part 110 and obtain a rack rotation signal.

[0057] The rotation of the first rotating part 110 will drive the rotating drag chain 200 to move, and the position coordinates or rotation angle of the first rotating part 110 have a fixed corresponding relationship with the contact area, suction length and relative position of the rotating drag chain 200 and the inner wall of the first rotating part 110. Figure 3 and Figure 4 During the relative rotation of the first rotating part 110 and the second rotating part 120, the rotating chain 200 always keeps a part in contact with the inner wall of the first rotating part 110, a part in contact with the outer wall of the second rotating part 120, and the rest of the part is bent. Since the total length of the rotating chain 200 is determined and the length of the part in the bent state is determined, the actual position coordinates of the rotating chain 200 can be obtained by detecting the contact length between the rotating chain 200 and the first rotating part 110 and / or the second rotating part 120, and the theoretical position coordinates of the rotating chain 200 at this time can be determined by the relative position of the first rotating part 110 and the second rotating part 120, and then the position coordinates of the rotating chain 200 can be judged whether they are abnormal by whether the actual position coordinates are consistent with the theoretical position coordinates. Correspondingly, the first step is specifically to detect the fitting length between the rotating drag chain 200 and the inner wall of the first rotating part 110 to obtain the position coordinates of the rotating drag chain 200, and / or to detect the fitting length between the rotating drag chain 200 and the outer wall of the second rotating part 120 to obtain the position coordinates of the rotating drag chain 200.

[0058] Furthermore, the first step is specifically to detect the position coordinates of the rotating drag chain 200 through the first detection component 300 and obtain a drag chain position state feedback signal; the first detection component 300 includes at least one of a pressure sensor, a photoelectric sensor, a fiber optic sensor and a Hall effect sensor.

[0059] Depending on the type of the first detection component 300 selected, the arrangement position of the first detection component 300 is also different. Taking the first detection component 300 as a pressure sensor as an example, Figure 2 and Figure 5When the pressure sensor is used to detect the fitting length between the rotating drag chain 200 and the inner wall of the first rotating part 110, multiple pressure sensors are arranged on the inner wall of the first rotating part 110 at circumferential intervals around the first rotating part 110. The pressure sensor can determine whether the current position is engaged with the rotating drag chain 200 by detecting whether a pressure signal or a change in the detected pressure signal is detected, and the fitting length of the rotating drag chain 200 and the first rotating part 110 can be obtained by the number and / or position of the first detection components 300 triggered by the rotating drag chain 200; when the pressure sensor is used to detect the fitting length of the rotating drag chain 200 and the outer wall of the second rotating part 120, multiple pressure sensors can be arranged on the outer wall of the second rotating part 120 at circumferential intervals around the second rotating part 120, and the fitting length of the rotating drag chain 200 and the second rotating part 120 can be obtained by the number and / or position of the first detection components 300 triggered by the rotating drag chain 200.

[0060] When the first detection component 300 is a photoelectric sensor, Figure 6 The first detection component 300 can be disposed on the side wall of the first rotating part 110, and the photoelectric sensor can judge whether the current position is engaged with the rotating drag chain 200 by the change of light. The operation mechanism of other sensors is similar to that of the pressure sensor and the photoelectric sensor, and will not be described in detail here.

[0061] It should be noted that since the relative rotation angle range of the first rotating part 110 and the second rotating part 120 is fixed, the first detection component 300 only needs to be arranged within the possible engagement range of the rotating drag chain 200 on the first rotating part 110 and / or the second rotating part 120 .

[0062] The second step is specifically to detect the rotation angle of the first rotating part 110 by a second detection component to obtain a rack rotation signal, and the second detection component includes at least one of an encoder, a photoelectric sensor, a fiber optic sensor and a Hall effect sensor.

[0063] Depending on the type of the second detection component selected, the second detection component is arranged at a different position. Figure 2 and Figure 3, a gear to be measured 111 is rotatably provided on the fixed part 100, and the gear to be measured 111 is meshed with meshing teeth provided on the outer wall of the first rotating part 110 for transmission. The encoder can obtain the rotation angle of the first rotating part 110 by detecting the rotation angle of the gear to be measured 111. The rotation angle of the first rotating part 110 is obtained by using the gear to be measured 111, which is much smaller than the first rotating part 110, so that the detection is more convenient. When the second detection component is a photoelectric sensor, at least one detection hole can be eccentrically set on the gear to be measured 111, and the rotation angle of the first rotating part 110 is converted by the number of times the photoelectric sensor detects the detection hole. The operating mechanism of other sensors is similar to that of encoders and photoelectric sensors, and will not be repeated here.

[0064] In order to facilitate operators to deal with abnormal conditions in a timely manner after the rotary drag chain 200 occurs, combined with Figure 1 and Figure 2 , an alarm step is also included after the shutdown step.

[0065] S40, alarm;

[0066] An alarm signal is sent out through the alarm device to remind the operating personnel to handle the situation.

[0067] The rotating drag chain operation monitoring device disclosed in the present invention is used to detect the motion trajectory of the rotating drag chain 200 on the frame through the above-mentioned rotating drag chain operation monitoring method, and includes a first detection component 300, a second detection component and a controller. The first detection component 300 is at least arranged on one of the first rotating part 110 and the second rotating part 120, and is used to detect the fitting length of the rotating drag chain 200 and the first rotating part 110 and / or the second rotating part 120, and obtain a drag chain position state feedback signal; combined with Figure 3 and Figure 4 During the relative rotation of the first rotating part 110 and the second rotating part 120, the rotating drag chain 200 always keeps a part in contact with the inner wall of the first rotating part 110, a part in contact with the outer wall of the second rotating part 120, and the remaining part is bent. Since the total length of the rotating drag chain 200 is determined and the length of the part in the bent state is determined, the position coordinates of the rotating drag chain 200 can be obtained by detecting the contact length between the rotating drag chain 200 and the first rotating part 110 and / or the second rotating part 120.

[0068] The second detection component is used to detect the relative rotation angle between the first rotating part 110 and the second rotating part 120 and obtain a frame rotation signal; when only one of the first rotating part 110 and the second rotating part 120 rotates, it is only necessary to detect the rotating one; when the first rotating part 110 and the second rotating part 120 rotate together, it is necessary to detect the rotation direction and rotation angle of each of the first rotating part 110 and the second rotating part 120, and calculate the relative rotation angle of the two, or the second detection component is directly set on one of the first rotating part 110 and the second rotating part 120, and the relative rotation angle of the two is obtained by detecting the other of the first rotating part 110 and the second rotating part 120.

[0069] The controller is used to receive the drag chain position status feedback signal and the frame rotation signal, and determine whether the position coordinates of the rotating drag chain 200 match the relative rotation angle of the first rotating part 110 and the second rotating part 120 through the drag chain position status feedback signal and the frame rotation signal. If they do not match, the controller is used to control the first rotating part 110 and the second rotating part 120 to stop rotating.

[0070] Compared with the prior art, the rotary drag chain operation monitoring device disclosed in the present invention can determine whether the position coordinates of the rotary drag chain 200 are abnormal through the suction length of the rotary drag chain 200 and the first rotating part 110 and / or the second rotating part 120 and the relative rotation angle between the first rotating part 110 and the second rotating part 120, and when an abnormality occurs, timely control the frame to shut down, thereby greatly reducing safety hazards.

[0071] In some embodiments, the rotating drag chain 200 is attracted to the first rotating part 110 through a magnetic attraction component, and the magnetic attraction component includes a first attraction component 400 and a second attraction component. The first attraction component 400 is used to be set on the rotating drag chain 200, and the second attraction component is used to be set on the inner wall of the first rotating part 110, and the first attraction component 400 and the second attraction component can be attracted to each other and separated from each other under the action of pulling force.

[0072] One of the first attraction component 400 and the second attraction component is a magnetic attraction component such as a soft magnet, and the other can be a metal component or a magnetic attraction component to achieve a mutual attraction effect. Specifically, the first attraction component 400 is arranged at intervals on one side of the rotating drag chain 200 along the extension length of the rotating drag chain 200, and the second attraction component can be a plurality of components arranged at intervals on the inner wall of the first rotating part 110.

[0073] Combination Figure 3 The rotating drag chain 200 is usually arranged on the rack in this way, and the rotating drag chain 200 can usually reliably fit with the outer wall of the second rotating part 120 by its own weight. Figure 7 When arranged in the manner shown in the figure, the reliability of the position coordinate detection of the rotating drag chain 200 is ensured, the magnetic attraction assembly further includes a third attraction component, which is arranged on the outer wall of the second rotating part 120 and is used to attract each other with the first attraction component 400. Specifically, the third attraction component can be a plurality of components arranged at intervals on the outer wall of the second rotating part 120.

[0074] It should be noted that, usually, the first rotating part 110 and the second rotating part 120 are both made of metal. Therefore, by setting the first suction component 400 as a component with magnetic attraction properties, the rotating drag chain 200 can be directly adsorbed on the first rotating part 110 and the second rotating part 120, and the setting of the second suction component and the third suction component can be eliminated.

[0075] A further optimized solution is that the rotating drag chain operation monitoring device also includes an alarm device, and the controller is electrically connected to the alarm device to control the alarm device to send an alarm signal when the position coordinates of the rotating drag chain 200 do not match the relative rotation angle of the first rotating part 110 and the second rotating part 120, and to allow the staff to cancel the alarm after the operator resolves the fault.

[0076] Combination Figure 2 The rotating drag chain operation monitoring device also includes a display device, and the controller is electrically connected to the display device, which can display an alarm message when the position coordinates of the rotating drag chain 200 do not match the relative rotation angle of the first rotating part 110 and the second rotating part 120.

[0077] In a specific embodiment disclosed in the present invention, during the assembly process, the pressure sensor and the second suction component are fixed on the inner wall of the first rotating part 110; the first suction component 400 is installed on the rotating drag chain 200, and then the rotating drag chain 200 is installed between the first rotating part 110 and the second rotating part 120 according to the motion trajectory; the encoder and the gear to be measured 111 are installed on the fixed part 100, and the gear to be measured 111 is meshed with the outer ring meshing teeth of the first rotating part 110; the communication cable of the pressure sensor and the communication cable of the encoder are respectively connected to the controller to complete the assembly.

[0078] During the operation of the frame, the first rotating part 110 rotates and drives the rotating drag chain 200 to move synchronously. The engagement length of the rotating drag chain 200 and the first rotating part 110 and the second rotating part 120 will change with the rotation angle of the first rotating part 110. At this time, the pressure sensor can output the measured engagement length to the controller, and then obtain the position coordinates of the rotating drag chain 200; when the first rotating part 110 rotates, it will synchronously drive the gear to be measured 111 and the encoder to rotate, and the encoder will output the position code value to the controller, and the controller will convert the encoder code value into the current position coordinates of the first rotating part 110.

[0079] The controller compares the sensor signals of the engagement length or pressure of the rotating drag chain 200 and the first rotating part 110 obtained respectively, and the position coordinates of the first rotating part 110 fed back by the encoder by looking up a table or calculating a formula to determine whether the two match. When the controller obtains that the comparison result shows that the two do not match, and the engagement length of the rotating drag chain 200 and the first rotating part 110 is small, it means that the rotating drag chain 200 has fallen off. At this time, the controller controls the first rotating part 110 to stop the current movement, and transmits the alarm information of the abnormal rotating drag chain 200 to the main console computer used by the operator. When the operator sees the alarm information on the display device of the main console, he needs to eliminate the current fault and then manually click on the computer to cancel the current fault information before the equipment can resume normal use.

[0080] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present invention. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A method for monitoring the operation of a rotary drag chain, for detecting a motion trajectory of a rotary drag chain (200) on a frame, the frame comprising a fixed portion (100), a first rotating portion (110) and a second rotating portion (120), the first rotating portion (110) and the second rotating portion (120) being coaxially arranged, and the first rotating portion (110) being arranged on an outer ring of the second rotating portion (120), at least one of the first rotating portion (110) and the second rotating portion (120) being rotatable relative to the fixed portion (100), the rotary drag chain (200) being arranged between the first rotating portion (110) and the second rotating portion (120), and one end of the rotary drag chain (200) being connected to an inner wall of the first rotating portion (110), and the other end being connected to an outer wall of the second rotating portion (120), characterized in that: Includes steps: Detection, detecting the position coordinates of the rotating drag chain (200) and obtaining a drag chain position state feedback signal, detecting the relative rotation angle of the first rotating part (110) and the second rotating part (120) and obtaining a rack rotation signal; Determining whether the position coordinates of the rotary drag chain (200) match the relative rotation angles of the first rotating part (110) and the second rotating part (120); processing the drag chain position state feedback signal and the rack rotation signal; Stopping: when the position coordinates of the rotary drag chain (200) do not match the relative rotation angle of the first rotating part (110) and the second rotating part (120), the first rotating part (110) and the second rotating part (120) stop rotating.

2. The method for monitoring the operation of a rotary drag chain according to claim 1, characterized in that: The detection step comprises a first step and a second step, wherein the first step specifically detects the position coordinates of the rotating drag chain (200) and obtains a position state feedback signal of the drag chain; The first rotating part (110) is rotatable relative to the fixed part (100), the second rotating part (120) is fixed relative to the fixed part (100), and the second step specifically detects the rotation angle of the first rotating part (110) and obtains the rack rotation signal.

3. The method for monitoring the operation of a rotary drag chain according to claim 2, characterized in that: The first step is specifically as follows: The fitting length between the rotating drag chain (200) and the inner wall of the first rotating part (110) is detected to obtain the position coordinates of the rotating drag chain (200), and / or the fitting length between the rotating drag chain (200) and the outer wall of the second rotating part (120) is detected to obtain the position coordinates of the rotating drag chain (200).

4. The method for monitoring the operation of a rotary drag chain according to claim 3, characterized in that: The first step specifically comprises detecting the position coordinates of the rotating drag chain (200) by means of a first detection component (300), and obtaining a position state feedback signal of the drag chain; The first detection component (300) comprises at least one of a pressure sensor, a photoelectric sensor, a fiber optic sensor and a Hall effect sensor.

5. The method for monitoring the operation of a rotary drag chain according to claim 4, characterized in that: A plurality of the first detection components (300) are arranged at intervals on the first rotating part (110), so that the fitting length between the rotating drag chain (200) and the inner wall of the first rotating part (110) is obtained according to the number or position of the first detection components (300) triggered by the rotating drag chain (200); and / or, A plurality of the first detection components (300) are arranged at intervals on the second rotating part (120), so that the fitting length between the rotating drag chain (200) and the outer wall of the second rotating part (120) is obtained according to the number or position of the first detection components (300) triggered by the rotating drag chain (200).

6. The method for monitoring the operation of a rotary drag chain according to claim 2, characterized in that: The second step specifically comprises detecting the rotation angle of the first rotating part (110) by a second detection component to obtain the rack rotation signal; The second detection component includes at least one of an encoder, a photoelectric sensor, a fiber optic sensor, and a Hall effect sensor.

7. The method for monitoring the operation of a rotary drag chain according to claim 6, characterized in that: A gear to be measured (111) is rotatably arranged on the fixed part (100), the gear to be measured (111) meshes with meshing teeth arranged on the outer wall of the first rotating part (110), and the second detection component is used to detect the rotation angle of the gear to be measured (111) to obtain the rotation angle of the first rotating part (110).

8. The method for monitoring the operation of a rotary drag chain according to claim 1, characterized in that: The method further comprises an alarm step after the shutdown step, wherein the alarm step is to send out an alarm signal through an alarm device.

9. A rotating drag chain operation monitoring device, characterized in that: Used to detect the motion trajectory of a rotary drag chain (200) on a rack by using the rotary drag chain operation monitoring method according to any one of claims 1 to 8, comprising: A first detection component (300) is arranged on at least one of the first rotating part (110) and the second rotating part (120), and is used to detect the fitting length between the rotating drag chain (200) and the first rotating part (110) and / or the second rotating part (120), and obtain a position state feedback signal of the drag chain; A second detection component, used for detecting the relative rotation angle between the first rotating part (110) and the second rotating part (120), and obtaining the rack rotation signal; A controller is used to receive the drag chain position state feedback signal and the frame rotation signal, and to determine whether the position coordinates of the rotating drag chain (200) match the relative rotation angles of the first rotating part (110) and the second rotating part (120) through the drag chain position state feedback signal and the frame rotation signal; if they do not match, the controller is used to control the first rotating part (110) and the second rotating part (120) to stop rotating.

10. The rotary drag chain operation monitoring device according to claim 9, characterized in that: The rotating drag chain (200) is attracted to the first rotating part (110) via a magnetic attraction component, wherein the magnetic attraction component comprises a first attraction component (400) and a second attraction component, wherein the first attraction component (400) is used to be arranged on the rotating drag chain (200), and the second attraction component is used to be arranged on the inner wall of the first rotating part (110), and the first attraction component (400) and the second attraction component are used to attract each other.

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