Real-time detection equipment for thickness of insulating layer of high-temperature-resistant wire rod
By designing a cable insulation layer thickness detection device combining mechanical and electromagnetic technology, the problem of low detection efficiency and inability to detect in real time in the prior art is solved, high-precision and real-time detection are achieved, and the reliability and stability of cable quality are ensured.
Patent Information
- Application Number
- CN202411707335.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-04-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the thickness detection efficiency of cable insulation layer is low, and real-time detection cannot be achieved, which affects the quality of cable production.
A real-time detection device for the thickness of high-temperature resistant wire insulation layer is designed. Using a combination of mechanical and electromagnetic methods, non-contact, high-precision insulation layer thickness measurement is achieved through components such as ceramic plates, contact wheels, grating scales and conductive plates.
It realizes high-precision and real-time measurement of insulation layer thickness, reduces measurement errors, avoids cable wear, improves detection efficiency and equipment durability, and ensures the reliability and stability of cable quality.
Smart Images
Figure CN119803261A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cable insulation layer thickness detection, and in particular to a real-time detection device for the thickness of a high-temperature resistant wire insulation layer. Background Art
[0002] At present, the qualification of cables is determined by pure manual testing methods, such as testing the conductive medium and insulation layer of the cable. In particular, the insulation layer of the cable is relatively difficult to detect, so the efficiency of the traditional manual testing method is very low. In addition, manual testing of the insulation layer of the cable cannot be carried out in real time with the production of the cable. Therefore, it is necessary to develop a device that can quickly detect the thickness of the insulation layer of the cable in real time without affecting the production speed of the cable, so as to ensure the reliability and stability of the quality of the cable production and ensure that the produced cables are within the qualified parameter range. Summary of the invention
[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire, comprising two side positioning rollers for horizontal positioning, two support rollers for supporting cables are arranged below the middle position of the two side positioning rollers; a ceramic plate is arranged above the middle position of the two side positioning rollers, and two contact wheels whose axes are in the same horizontal plane and arranged in parallel are rotatably installed on the lower surface of the ceramic plate, and four vertical displacement slide bars are fixed on the upper surface of the ceramic plate, two of which are provided with grating scales for detecting the displacement size of the vertical displacement slide bars, and a conductive plate is arranged in the middle of the ceramic plate.
[0004] Preferably, the side positioning roller is rotatably mounted on the side positioning roller bracket, the side positioning roller bracket is slidably mounted on two parallel horizontal displacement slide bars, the horizontal displacement slide bar is fixed on the horizontal displacement slide bar bracket, the horizontal displacement slide bar bracket is fixed on the bottom plate, wherein the horizontal displacement slide bar is also surrounded by a horizontal tension spring, and both ends of the horizontal tension spring are fixed to the horizontal displacement slide bar bracket and the side positioning roller bracket.
[0005] Preferably, racks are fixedly mounted on the two side positioning roller brackets, and the two racks are meshed and transmitted via a central gear, wherein the two racks are symmetrically arranged about the origin center of the central gear.
[0006] Preferably, a shell is fixedly mounted on the bottom plate, a top plate is fixedly mounted on the shell, a top buckle cover is fixedly mounted on the top plate, a bottom buckle cover is fixedly mounted on the lower surface of the bottom plate, four vertical displacement slide bars are slidably matched with the top plate, two of the vertical displacement slide bars are also surrounded by vertical tension springs, and both ends of the vertical tension springs are fixed to the top ends of the vertical displacement slide bars and the top plate.
[0007] Preferably, a transmission shaft is provided through the bottom plate and the top plate, the transmission shaft is rotationally matched with the bottom plate and the top plate, the transmission shaft is connected to the central gear through a transmission belt, and a hand wheel is fixedly provided at the top end of the transmission shaft.
[0008] Preferably, the two support rollers are rotatably mounted on a support roller frame, the support roller frame is fixed on a horizontal displacement slide rod bracket, and a through hole for allowing the cable to pass through is provided on the side of the shell.
[0009] Preferably, a circular through hole is opened in the middle of the ceramic plate, a coil is arranged on the inner wall of the circular through hole, and the conductive plate is located above the coil.
[0010] Preferably, two symmetrically arranged detection electrode sheets and two symmetrically arranged induction electrode sheets are fixed on the edge of the conductive plate, detection leads are fixed on both detection electrode sheets, and induction leads are fixed on both induction electrode sheets, and all induction leads and detection leads are insulated and fixedly matched with the ceramic plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention provides high-precision cable insulation thickness measurement through a combination of mechanical and electromagnetic methods. The multi-level contact design ensures the stability of the cable position during the measurement process, reduces the measurement error caused by cable displacement and shaking, and ensures the reliability and accuracy of the measurement results; (2) The present invention adopts the principle of electromagnetic induction for non-contact measurement, avoiding the wear and damage of the cable insulation layer caused by traditional contact measurement. Non-contact measurement not only improves the durability of the device, but also reduces maintenance costs and extends the service life of the equipment; (3) The real-time monitoring and feedback system of the present invention can monitor the distance change between the coil and the conductive medium in real time during the measurement process and provide timely feedback of data. This design not only improves the timeliness of the measurement, but also does not affect the progress of cable production, thereby ensuring the reliability and stability of the cable quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the shell structure of the present invention.
[0013] Figure 2 It is a schematic diagram of the overall structure of the present invention.
[0014] Figure 3 It is a structural schematic diagram of the horizontal displacement sliding rod bracket of the present invention.
[0015] Figure 4 It is a structural schematic diagram of the central gear of the present invention.
[0016] Figure 5 It is a schematic diagram of the conductive plate structure of the present invention.
[0017] In the figure: 101-housing; 102-bottom plate; 103-bottom buckle cover; 104-top plate; 105-top buckle cover; 106-handwheel; 107-drive shaft; 108-center gear; 109-drive belt; 110-vertical displacement slide bar; 111-rack; 112-side positioning roller; 113-side positioning roller bracket; 114-horizontal displacement slide bar; 115-horizontal tension spring; 116-horizontal displacement slide bar bracket; 117-support roller rack; 118-support roller; 119-ceramic plate; 120-coil; 121-conductive plate; 122-induction lead wire; 123-detection lead wire; 124-contact wheel; 125-detection electrode sheet; 126-induction electrode sheet; 127-vertical tension spring. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1-5 , and further illustrate the technical solution of the present invention through specific implementation methods.
[0019] The present invention provides a real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire material, comprising two side positioning rollers 112 for horizontal positioning, two support rollers 118 for supporting cables are arranged below the middle position of the two side positioning rollers 112; a ceramic plate 119 is arranged above the middle position of the two side positioning rollers 112, two contact wheels 124 whose axes are in the same horizontal plane and arranged in parallel are rotatably mounted on the lower surface of the ceramic plate 119, four vertical displacement slide bars 110 are fixed on the upper surface of the ceramic plate 119, two of which are provided with grating scales for detecting the displacement size of the vertical displacement slide bars 110, and a conductive plate 121 is arranged in the middle of the ceramic plate 119. The side positioning roller 112 is rotatably mounted on the side positioning roller bracket 113, and the side positioning roller bracket 113 is slidably mounted on two parallel horizontal displacement slide bars 114, and the horizontal displacement slide bars 114 are fixed on the horizontal displacement slide bar bracket 116, and the horizontal displacement slide bar bracket 116 is fixed on the bottom plate 102, wherein the horizontal displacement slide bar 114 is also surrounded by a horizontal tension spring 115, and the two ends of the horizontal tension spring 115 are fixed to the horizontal displacement slide bar bracket 116 and the side positioning roller bracket 113. Racks 111 are fixedly mounted on the two side positioning roller brackets 113, and the two racks 111 are meshed and transmitted through the central gear 108, wherein the two racks 111 are symmetrically arranged about the origin center of the central gear 108. The bottom plate 102 is fixedly mounted with a housing 101, the top plate 104 is fixedly mounted with a top buckle cover 105, the bottom buckle cover 103 is fixedly mounted on the lower surface of the bottom plate 102, wherein four vertical displacement slide bars 110 are slidably matched with the top plate 104, wherein two vertical displacement slide bars 110 are also surrounded by vertical tension springs 127, and the two ends of the vertical tension springs 127 are fixed with the top ends of the vertical displacement slide bars 110 and the top plate 104. A transmission shaft 107 is provided through the bottom plate 102 and the top plate 104, the transmission shaft 107 is rotatably matched with the bottom plate 102 and the top plate 104, and the transmission shaft 107 is connected to the central gear 108 through a transmission belt 109, wherein a hand wheel 106 is fixedly provided at the top end of the transmission shaft 107. Two support rollers 118 are rotatably mounted on a support roller frame 117, and the support roller frame 117 is fixed on a horizontal displacement slide rod bracket 116. A through hole for passing a cable is provided on the side of the housing 101. A circular through hole is provided in the middle of the ceramic plate 119, and a coil 120 is provided on the inner wall of the circular through hole, wherein a conductive plate 121 is located above the coil 120. Two symmetrically arranged detection electrode sheets 125 and two symmetrically arranged induction electrode sheets 126 are fixedly provided on the edge of the conductive plate 121, and detection leads 123 are fixed on both detection electrode sheets 125, and induction leads 122 are fixed on both induction electrode sheets 126, and all induction leads 122 and detection leads 123 are insulated and fixedly matched with the ceramic plate 119.
[0020] The working principle of a real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire disclosed in the present invention is as follows: pull up the vertical displacement slide bar 110 by hand, that is, move the ceramic plate 119 upward, and then rotate the hand wheel 106, the hand wheel 106 drives the transmission shaft 107 to rotate, the transmission shaft 107 drives the central gear 108 to rotate through the transmission belt 109, and the central gear 108 drives the two racks 111 to move relative to each other, at this time, let the two racks 111 move away from each other, that is, the corresponding side positioning roller brackets 113 move away from each other, the side positioning roller brackets 113 slide on the horizontal displacement slide bar 114, the horizontal tension spring 115 is in a stretched state, and is arranged on the side positioning roller bracket 113 The side positioning rollers 112 on the cable will move away from each other. At this time, the cable is inserted into it, and then the vertical displacement slide bar 110 and the hand wheel 106 are released. The ceramic plate 119 contacts the outer surface of the cable under the action of the vertical tension spring 127 and gravity (actually the contact wheel 124 on the ceramic plate 119). The side positioning roller 112 contacts the outer surface of the cable under the action of the horizontal tension spring 115 to achieve horizontal positioning of the cable. At the same time, the cable will contact the support roller 118 under the action of its own gravity, that is, the support roller 118 plays the role of supporting the cable, which ensures that the distance between the ceramic plate 119 and the support roller 118 is known, which corresponds to the outer diameter of the cable insulation layer. Combined with the diameter of the conductive medium of the cable, the thickness of the insulation layer can be known. In general, the diameter of the conductive medium is known (produced in advance).
[0021] At the same time, the contact wheel 124 is arranged on the ceramic plate 119, so the ceramic plate 119 and the contact wheel 124 can be regarded as a whole, and the sizes of the ceramic plate 119 and the contact wheel 124 can be calculated when calculating the thickness of the insulating layer. In order to ensure the accuracy and reliability of the insulation layer thickness detection, the coil 120 and the conductive plate 121 are also arranged. Specifically, the relative position of the conductive plate 121 and the ceramic plate 119 is fixed, and the relative position of the coil 120 and the ceramic plate 119 is unchanged. Only the relative position of the coil 120 and the conductive medium inside the cable is changed (if the thickness of the insulating layer changes), so only the distance between the coil 120 and the conductive medium needs to be detected. The alternating current on the coil 120 causes the coil 120 to generate a changing magnetic field. The magnetic field generated by the coil 120 will pass through the conductive medium, so an induced current will be generated on the conductive medium. Since the magnetic field is changing, the induced current generated on the conductive medium is also changing, so the conductive medium itself will also generate a changing magnetic field, which is opposite to the magnetic field generated by the coil 120, so it will weaken the magnetic field strength of the coil 120. Therefore, the closer the coil 120 is to the conductive medium, the greater the induced current on the conductive medium, and the stronger the magnetic field generated, and the greater the intensity of weakening the magnetic field of the coil 120. Since the magnetic field generated by the coil 120 will pass through the conductive plate 121, a DC power supply is applied to both ends of the conductive plate 121, so that its electrons pass through the induction lead 122, the induction electrode sheet 126, the conductive plate 121, the induction electrode sheet 126, and the induction lead 122 in sequence. When the electrons enter the conductive plate 121, they will flow inside the conductive plate 121. The electrons will be deflected by the Lorentz force of the magnetic field of the coil 120. The stronger the intensity of the magnetic field of the coil 120, the greater the displacement of the electrons. When the electrons are deflected, a signal will appear on the two detection electrode sheets 125. A potential difference is then generated, and then it is led out through the detection lead 123. By detecting the size of the potential difference on the detection electrode sheet 125, the strength of the magnetic field of the coil 120 can be known. Because the magnetic field strength of the coil 120 is affected by the conductive medium, the magnitude of the influence of the conductive medium on the magnetic field of the coil 120 depends on the distance between the coil 120 and the conductive medium. Therefore, the distance between the coil 120 and the conductive medium can be known by the size of the potential difference on the two detection leads 123 (for example, using an oscilloscope, the corresponding distance is the distance between the peak and the trough), and then the thickness of the insulating layer can be known.
Claims
1. A real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire, characterized in that: It comprises two side positioning rollers (112) for horizontal positioning, and two supporting rollers (118) for supporting cables are arranged below the middle position of the two side positioning rollers (112); A ceramic plate (119) is arranged above the middle position of the two side positioning rollers (112); two contact wheels (124) whose axes are in the same horizontal plane and arranged in parallel are rotatably mounted on the lower surface of the ceramic plate (119); four vertical displacement slide bars (110) are fixed on the upper surface of the ceramic plate (119); two of the vertical displacement slide bars (110) are provided with grating scales for detecting the displacement size of the vertical displacement slide bars (110); and a conductive plate (121) is arranged in the middle of the ceramic plate (119).
2. The device for real-time detection of thickness of insulation layer of high temperature resistant wire material according to claim 1, characterized in that: The side positioning roller (112) is rotatably mounted on the side positioning roller bracket (113), and the side positioning roller bracket (113) is slidably mounted on two parallel horizontal displacement slide bars (114), the horizontal displacement slide bars (114) are fixed on the horizontal displacement slide bar bracket (116), and the horizontal displacement slide bar bracket (116) is fixed on the bottom plate (102), wherein a horizontal tension spring (115) is also arranged around the horizontal displacement slide bar (114), and the two ends of the horizontal tension spring (115) are fixed to the horizontal displacement slide bar bracket (116) and the side positioning roller bracket (113).
3. The real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire material according to claim 2 is characterized in that: Racks (111) are fixedly mounted on the two side positioning roller brackets (113), and the two racks (111) are meshed and transmitted via a central gear (108), wherein the two racks (111) are symmetrically arranged about the origin of the central gear (108).
4. The real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire material according to claim 3 is characterized in that: A housing (101) is fixedly mounted on the bottom plate (102), a top plate (104) is fixedly mounted on the housing (101), a top buckle cover (105) is fixedly mounted on the top plate (104), and a bottom buckle cover (103) is fixedly mounted on the lower surface of the bottom plate (102), wherein four vertical displacement slide bars (110) are slidably matched with the top plate (104), wherein two of the vertical displacement slide bars (110) are further surrounded by vertical tension springs (127), and the two ends of the vertical tension springs (127) are fixed to the top ends of the vertical displacement slide bars (110) and the top plate (104).
5. The real-time detection device for the thickness of the insulation layer of a high-temperature resistant wire according to claim 4 is characterized in that: A transmission shaft (107) is provided through the bottom plate (102) and the top plate (104). The transmission shaft (107) is rotatably matched with the bottom plate (102) and the top plate (104). The transmission shaft (107) is connected to the central gear (108) via a transmission belt (109). A hand wheel (106) is fixedly provided at the top end of the transmission shaft (107).
6. A device for real-time detection of thickness of insulation layer of high temperature resistant wire material according to claim 5, characterized in that: The two support rollers (118) are rotatably mounted on a support roller frame (117), the support roller frame (117) is fixed on a horizontal displacement slide rod bracket (116), and a through hole for allowing a cable to pass through is provided on a side surface of the housing (101).
7. A device for real-time detection of thickness of insulation layer of high temperature resistant wire material according to claim 6, characterized in that: A circular through hole is opened in the middle of the ceramic plate (119), and a coil (120) is arranged on the inner wall of the circular through hole, wherein the conductive plate (121) is located above the coil (120).
8. The device for real-time detection of thickness of insulation layer of high temperature resistant wire material according to claim 7, characterized in that: Two symmetrically arranged detection electrode sheets (125) and two symmetrically arranged induction electrode sheets (126) are fixedly provided on the edge of the conductive plate (121); detection leads (123) are fixedly provided on the two detection electrode sheets (125); induction leads (122) are fixedly provided on the two induction electrode sheets (126); and all induction leads (122) and detection leads (123) are insulated and fixedly matched with the ceramic plate (119).