Cable asphalt removing device and removing method

Abstract

The invention relates to a cable asphalt removing device and method, and belongs to the technical field of cable surface cleaning. Comprising an upper sealing body and a lower sealing body which are detachably connected, each sealing body comprises a middle semicircular cover shell and sleeve shells coaxially arranged at the two ends of the cover shell, and the inner diameter of each sleeve shell is smaller than that of the cover shell. A rotating assembly is arranged in the position, located in the housing, of the middle of the sealing body, an asphalt cleaning device is arranged on the rotating assembly, and a heating device is arranged in the sealing body. The steel armor with the asphalt layer needing to be cleaned is wrapped, the asphalt layer is automatically cleaned, time and labor are saved, and potential safety hazards to operators are eliminated.

Description

Technical Field

[0001] The present application belongs to the technical field of cable surface cleaning, and specifically relates to a cable asphalt removal device and a removal method. Background Art

[0002] There is a layer of asphalt between the outer sheath of the cable and the steel armor. The asphalt mainly plays the role of waterproofing, anti-corrosion, filling, fixing and sealing. In some specific scenarios, it is necessary to peel off the outer sheath of the cable, then remove the asphalt layer to expose the steel armor. For example, when making cable joints or terminals, in order to ensure a good electrical connection, it is sometimes necessary to remove part of the outer sheath and directly contact the steel armor or even the internal conductor. Or for some types of cables, the steel armor may be required to be reliably grounded during the installation process. At this time, it is also necessary to remove part of the outer sheath to expose the steel armor so that the grounding wire can be installed correctly.

[0003] At present, the cleaning of the asphalt layer on the surface of the steel armor is basically done by workers using a flamethrower or a heat lamp to heat the asphalt to melt it, and then scraping it off with a scraper. This operation method is time-consuming and labor-intensive, and it is easy to burn the workers, which has certain safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present application is: to overcome the deficiencies of the prior art and to provide a cable asphalt removal device and a removal method. The present application will wrap the steel armor that needs to be cleaned of the asphalt layer, and automatically clean its asphalt layer, saving time and effort and eliminating safety hazards to operators.

[0005] The technical solution adopted by this application to solve the problems existing in the prior art is:

[0006] A cable asphalt removal device comprises two upper and lower detachably connected sealing bodies, wherein the sealing body comprises a semicircular cover shell in the middle and sleeve shells coaxially arranged at both ends of the cover shell, and the inner diameter of the sleeve shell is smaller than the inner diameter of the cover shell.

[0007] A rotating assembly is arranged in the middle of the sealing body and inside the cover shell, an asphalt cleaning device is arranged on the rotating assembly, and a heating device is arranged inside the sealing body.

[0008] Preferably, the asphalt cleaning device comprises a base plate, a clamping plate and a cleaning plate, the base plate is slidably connected to the rotating assembly, the clamping plate is arranged on the inner side of the base plate, and the cleaning plate is detachably connected between the two clamping plates.

[0009] Preferably, the cleaning plate is made of a polyurethane plate.

[0010] Preferably, the two clamping plates are slidably arranged on the push plate, and a first spring is arranged between the push plate and the bottom plate.

[0011] Preferably, the rotating assembly includes a motor and two relatively arranged half parts, the half parts include a first gear ring and a second gear ring, and a connecting part is fixedly connected between the first gear ring and the second gear ring.

[0012] The two ends of the inner wall of the housing are provided with snap rings, the first gear and the second gear ring are rotatably arranged inside the two snap rings respectively, and a through hole is arranged on the bottom plate, and the through hole is sleeved on the connecting part.

[0013] The motor is fixed to the outside of the housing, and a gear is arranged on the output shaft of the motor. The gear is meshed and connected with the first gear ring.

[0014] Preferably, the arc of the first tooth ring is greater than 180°, the arc of the second tooth ring is less than 180°, and the total arc of the first tooth ring and the second tooth ring is 360°.

[0015] Preferably, a heating module is provided on the inner wall of the casing, and an electrical terminal is provided on the outer wall of the casing, and the electrical terminal is electrically connected to the heating module.

[0016] Preferably, the connecting part adopts a cylindrical heating rod, the first gear ring and the second gear ring are both provided with a power connection plate electrically connected to the connecting part, the cover shell is provided with a power connection block electrically connected to the power connection plate, and the outside of the cover shell is provided with a power connection terminal electrically connected to the power connection block.

[0017] Preferably, a spiral groove is concavely provided on the inner circumferential wall of the cover shell, a guide rod is convexly provided under the bottom plate, and the end of the guide rod is slidably arranged inside the spiral groove.

[0018] A cable asphalt removal method, based on the above-mentioned cable asphalt removal device, comprises the following steps:

[0019] S01. Install the sealing body on the cable, with the cover corresponding to the steel armor part that needs to be cleaned of asphalt;

[0020] S02, start the heating device. After the heating device is turned on for 10 to 20 minutes, or a temperature sensor is added inside the housing. When the temperature inside the housing reaches a threshold, start the motor to drive the rotating assembly to rotate, thereby driving the asphalt cleaning device to rotate around the steel armor part. Under the push of the first spring, the cleaning plate abuts against the surface of the steel armor part to clean the melted asphalt on the surface of the steel armor part;

[0021] S03. Under the guidance of the spiral groove, the rotating asphalt cleaning device moves along the axial direction of the cable to clean the entire length of the steel armor;

[0022] S04. After cleaning, remove the sealing body and the cleaning plate, and replace with a new cleaning plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) When cleaning the asphalt layer on the steel armor, the part is completely wrapped by the sealing body, and an electric heating device and a motor are used to drive the cleaning. While improving efficiency, it also reduces safety hazards such as burns to operators and fire on site.

[0025] (2) During the cleaning process, the motor drives the cleaning plate to rotate while the cleaning plate moves along the axial direction of the cable. Only one motor is needed to realize the rotation and translation of the cleaning plate, and a simple structure can realize complex functions, thereby reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 The first structural diagram of a cable asphalt removal device for this application is shown in FIG.

[0028] Figure 2 The second structural diagram of a cable asphalt removal device for this application is shown in FIG.

[0029] Figure 3 This is a first exploded view of a cable asphalt removal device for this application.

[0030] Figure 4 This is a first cross-sectional view of a cable asphalt removal device according to the present application.

[0031] Figure 5 This is the first structural diagram of an asphalt cleaning device in a cable asphalt cleaning device of the present application.

[0032] Figure 6 The second exploded view of a cable asphalt removal device for this application,

[0033] Figure 7 This is a second cross-sectional view of a cable asphalt removal device according to the present application.

[0034] Figure 8 for Figure 7 A partial enlarged view of the middle A.

[0035] Fig. 9 This is the second structural diagram of an asphalt cleaning device in a cable asphalt cleaning device of the present application.

[0036] Fig.10 This is a structural diagram of a rotating assembly in a cable asphalt removal device for this application.

[0037] Fig.11 This is the structural diagram of the half-component in the rotating assembly.

[0038] Fig.12 for Fig.11 Side view of

[0039] Fig.13 for Fig.11 A partial cross-sectional view of

[0040] Fig.14 for Fig.13 A partial enlarged view of point B in the middle.

[0041] Fig.15 This is a structural diagram of a power connection board in a cable asphalt removal device for the present application.

[0042] In the figure: 1-cover, 101-clamping ring, 102-spiral groove, 103-spring chamber, 2-housing, 201-clamping groove, 3-sealing gasket, 4-half component, 401-first gear ring, 402-second gear ring, 403-connecting part, 404-groove, 5-asphalt cleaning device, 501-bottom plate, 502-push plate, 5021-slide groove, 503-clamping plate, 5031-sliding block, 504-cleaning plate, 505-locking bolt, 506-slide rod, 507-first spring, 508-guide rod, 6-heating module, 7-gear, 8-motor, 9-electrical terminal, 10-cable, 1001-steel armor, 11-second spring, 12-electrical block, 13-electrical board, 1301-plug. DETAILED DESCRIPTION

[0043] In conjunction with the accompanying drawings, a cable asphalt removal device and a removal method of the present application are further described in detail, but they are not intended to limit the present application.

[0044] Depend on Figure 1 as well as Figure 2 As shown, a cable asphalt removal device includes two upper and lower detachably connected sealing bodies, the two sealing bodies have the same structure, are interlocked to wrap the cable 10 and the steel armor part 1001 that needs to remove the asphalt layer, and the two sealing bodies are fixedly connected by bolts.

[0045] The sealing body includes a semicircular cover 1 in the middle and a sleeve 2 coaxially arranged at both ends of the cover 1, and the inner diameter of the sleeve 2 is smaller than the inner diameter of the cover 1. The cover 1 wraps the steel armor 1001, and the sleeve 2 is sleeved on the surface of the cable 10 with the outer skin. A heating device is arranged inside the cover 1 to heat the asphalt layer. The sleeve 2 is in close contact with the outer wall of the cable 10 to play a role in heat preservation and fixation. In order to improve the heat preservation and fixation effect, a groove 201 is recessed on the inner wall of the sleeve 2, and a sealing gasket 3 is inlaid inside the groove 201. The sealing gaskets 3 on the two sealing bodies are combined into an annular sealing ring, and the inner diameter of the sealing ring is smaller than the outer diameter of the cable 10. After the two sealing bodies are fixedly connected, the sealing gasket 3 is squeezed and deformed, thereby effectively improving the sealing and heat preservation properties.

[0046] At the same time, a rotating assembly is provided inside the cover shell 1 in the middle of the sealing body, and an asphalt cleaning device 5 is provided on the rotating assembly. The rotating assembly drives the asphalt cleaning device 5 to rotate around the steel armor part 1001, and the asphalt cleaning device 5 is used to clean the asphalt after heating and melting.

[0047] Depend on Figure 5 As shown, the asphalt cleaning device 5 includes a bottom plate 501, a clamping plate 503 and a cleaning plate 504. The bottom plate 501 is slidably connected to the rotating assembly, the clamping plate 503 is arranged on the inner side of the bottom plate 501, and the cleaning plate 504 is detachably connected between the two clamping plates 503. The two clamping plates 503 are connected by a locking bolt 505. The locking bolt 505 is removed and the cleaning plate 504 is replaced.

[0048] The top surface of the push plate 502 is concavely provided with a plurality of parallelly arranged slide grooves 5021 , and the bottom of the clamping plate 503 is convexly provided with a slider 5031 , which is slidably arranged inside the slide groove 5021 , thereby making the two clamping plates 503 and the push plate 502 slidably connected.

[0049] A slide bar 506 is provided at the bottom of the push plate 502, and a through hole is provided on the bottom plate 501. The slide bar 506 passes through the through hole and is slidably connected to the bottom plate 501. A first spring 507 is sleeved on the slide bar 506, and the first spring 507 is located between the push plate 502 and the bottom plate 501. Under the push of the first spring 507, the cleaning plate 504 is always in contact with the surface of the steel armor part 1001.

[0050] In order to optimize the cleaning effect of asphalt, in this embodiment, the cleaning plate 504 is a polyurethane plate. Polyurethane is a material with excellent wear resistance and flexibility, which can provide sufficient friction to effectively remove asphalt while maintaining its shape. In addition, polyurethane has good tolerance to many chemicals, including asphalt that softens at high temperatures. Compared with metal tools or other hard materials, polyurethane plates are softer and less likely to scratch the surface of steel armor. This is very important for protecting the mechanical integrity of the cable and avoiding additional damage caused by improper operation. At the same time, the polyurethane plate is relatively easy to clean, and the residue can be easily removed after removing the asphalt, ensuring the cleanliness of the tool, thereby not affecting the subsequent work efficiency.

[0051] The rotating assembly includes a motor 8 and two oppositely arranged half components 4 , wherein the half components 4 include a first gear ring 401 and a second gear ring 402 , and a connecting portion 403 is fixedly connected between the first gear ring 401 and the second gear ring 402 .

[0052] The two ends of the inner wall of the housing 1 are provided with snap rings 101 , the first gear 401 and the second gear ring 402 are rotatably disposed inside the two snap rings 101 , respectively, and a through hole is provided on the bottom plate 501 , which is sleeved on the connecting portion 403 .

[0053] The motor 8 is fixed to the outside of the housing 1 , and a gear 7 is disposed on the output shaft of the motor 8 . The gear 7 is meshed and connected with the first gear ring 401 .

[0054] In order to prevent the half component 4 from completely separating from the housing 1, the arc of the first toothed ring 401 is greater than 180°, the arc of the second toothed ring 402 is less than 180°, and the total arc of the first toothed ring 401 and the second toothed ring 402 is 360°.

[0055] The upper and lower half parts 4 are arranged in opposite directions, that is, the first toothed ring 401 of the lower half part 4 and the second toothed ring 402 of the upper half part 4 are spliced ​​to form a circular toothed ring.

[0056] In this way, when the half component 4 rotates 180°, a part of the first gear ring 401 is still located inside the snap ring 101, so that the half component 4 and the housing 1 continue to remain connected and will not fall out.

[0057] Due to the different steel armor structures of various types of cables, the steel armor part 1001 of some cables 10 is not threaded. For cleaning this type of steel armor part 10, Figures 3 to 5 As shown, the inner wall of the housing 1 is provided with a heating module 6, and the outer wall of the housing 6 is provided with an electrical terminal 9, which is electrically connected to the heating module 6. The heating module 6 can adopt existing technologies such as an electric heating plate.

[0058] During the cleaning operation, the heating module 6 is powered on for heating. After the asphalt inside the housing 1 begins to melt, the motor 8 is started, and the half component 4 drives the asphalt cleaning device 5 to rotate. Since the surface of the steel armor 1001 is spiral, and the cleaning plate 504 is always in contact with the surface of the steel armor 1001, the rotating cleaning plate 504 can move along the axial direction of the cable 10 under the guidance of the spiral groove on the surface of the steel armor 1001. In this way, the asphalt layer on the surface of the entire steel armor 1001 can be cleaned only by starting the motor 8.

[0059] For the steel armor part 1001 whose surface is flat or bellows-shaped, according to FIG. Figures 6 to 15 As shown,

[0060] The connecting portion 403 adopts a cylindrical heating rod, and the first gear ring 401 and the second gear ring 402 are both provided with a power connection plate 13 electrically connected to the connecting portion 403, the cover shell 1 is provided with a power connection block 12 electrically connected to the power connection plate 13, and the outside of the cover shell 1 is provided with a power connection terminal 9 electrically connected to the power connection block 12.

[0061] Furthermore, an annular groove 404 is concavely formed on the end faces of the first gear ring 401 and the second gear ring 402, and the horizontal cross-section of the groove 404 is T-shaped. The power board 13 is inserted into the groove 404, and an L-shaped plug 1301 is provided at the end of the power board 13. The plug 1301 is bent and inserted into the sockets of the first gear ring 401 and the second gear ring 402.

[0062] The power boards 13 of the upper and lower halves are butted against and electrically connected via the oppositely arranged plugs 1301 .

[0063] A spring cavity 103 is recessed at a position opposite to the housing 1, and the power connection block 12 is slidably disposed inside the spring cavity 103. A second spring 11 is disposed on the side of the power connection block 12 away from the power connection board 13, and the second spring 11 is disposed inside the spring cavity 103. Under the push of the second spring 11, the power connection block 12 is always electrically connected to the power connection board 13.

[0064] A spiral groove 102 is concavely provided on the inner circumferential wall of the cover shell 1 , and a guide rod 508 is convexly provided below the bottom plate 501 . The end of the guide rod 508 is slidably disposed inside the spiral groove 102 .

[0065] A cable asphalt removal method, based on the above-mentioned cable asphalt removal device, comprises the following steps:

[0066] S01. Install the sealing body on the cable, with the cover 1 corresponding to the steel armor part 1001 from which the asphalt needs to be removed;

[0067] S02, start the heating device. After the heating device is turned on for 10 to 20 minutes, or a temperature sensor is added inside the housing 1, when the temperature inside the housing 1 reaches a threshold, start the motor 8 to drive the rotating assembly to rotate, thereby driving the asphalt cleaning device 5 to rotate around the steel armor part 1001. Under the push of the first spring 507, the cleaning plate 504 abuts against the surface of the steel armor part 1001 to clean the melted asphalt on the surface of the steel armor part 1001;

[0068] S03. Under the guidance of the spiral groove 102, the rotating asphalt cleaning device 5 moves along the axial direction of the cable 10, thereby cleaning the entire length of the steel armor portion 1001;

[0069] S04. After cleaning, remove the sealing body, remove the cleaning plate 504, and replace it with a new cleaning plate 504.

[0070] The implementation methods of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. A cable asphalt removal device, characterized in that: The sealing body comprises two upper and lower sealing bodies which are detachably connected, the sealing body comprising a semicircular cover shell (1) in the middle and sleeve shells (2) coaxially arranged at both ends of the cover shell (1), the inner diameter of the sleeve shell (2) being smaller than the inner diameter of the cover shell (1); A rotating assembly is provided in the middle of the sealing body and inside the cover shell (1), an asphalt cleaning device (5) is provided on the rotating assembly, and a heating device is provided inside the sealing body.

2. A cable asphalt removal device according to claim 1, characterized in that: The asphalt cleaning device (5) comprises a base plate (501), a clamping plate (503) and a cleaning plate (504); the base plate (501) is slidably connected to the rotating assembly; the clamping plate (503) is arranged on the inner side of the base plate (501); and the cleaning plate (504) is detachably connected between the two clamping plates (503).

3. A cable asphalt removal device according to claim 1, characterized in that: The cleaning plate (504) is made of a polyurethane plate.

4. A cable asphalt removal device according to claim 2 or 3, characterized in that: The two clamping plates (503) are slidably arranged on the push plate (502), and a first spring (507) is arranged between the push plate (502) and the bottom plate (501).

5. A cable asphalt removal device according to claim 4, characterized in that: The rotating assembly comprises a motor (8) and two half parts (4) arranged opposite to each other, the half parts (4) comprising a first gear ring (401) and a second gear ring (402), and a connecting portion (403) is fixedly connected between the first gear ring (401) and the second gear ring (402); The inner wall of the housing (1) is provided with snap rings (101) at two ends, the first gear (401) and the second gear ring (402) are rotatably arranged inside the two snap rings (101) respectively, and the bottom plate (501) is provided with a through hole, which is sleeved on the connecting portion (403); The motor (8) is fixed to the outside of the housing (1), and a gear (7) is provided on the output shaft of the motor (8). The gear (7) is meshedly connected with the first gear ring (401).

6. A cable asphalt removal device according to claim 5, characterized in that: The arc of the first gear ring (401) is greater than 180°, the arc of the second gear ring (402) is less than 180°, and the total arc of the first gear ring (401) and the second gear ring (402) is 360°.

7. A cable asphalt removal device according to claim 5 or 6, characterized in that: The inner wall of the housing (1) is provided with a heating module (6), and the outer wall of the housing (6) is provided with an electrical terminal (9), and the electrical terminal (9) is electrically connected to the heating module (6).

8. A cable asphalt removal device according to claim 5 or 6, characterized in that: The connecting portion (403) is a cylindrical heating rod, the first gear ring (401) and the second gear ring (402) are both provided with a power connection plate (13) electrically connected to the connecting portion (403), the cover shell (1) is provided with a power connection block (12) electrically connected to the power connection plate (13), and the outside of the cover shell (1) is provided with a power connection terminal (9) electrically connected to the power connection block (12).

9. A cable asphalt removal device according to claim 8, characterized in that: A spiral groove (102) is concavely arranged on the inner circumferential wall of the cover shell (1), a guide rod (508) is convexly arranged below the bottom plate (501), and the end of the guide rod (508) is slidably arranged inside the spiral groove (102).

10. A cable asphalt removal method, based on the cable asphalt removal device according to claim 9, characterized in that: The following steps are involved: S01. Install the sealing body on the cable, with the cover (1) corresponding to the steel armor part (1001) from which the asphalt needs to be removed; S02, starting the heating device. After the heating device is turned on for 10 to 20 minutes, or after a temperature sensor is added inside the housing (1), when the temperature inside the housing (1) reaches a threshold value, starting the motor (8) to drive the rotating assembly to rotate, thereby driving the asphalt cleaning device (5) to rotate around the steel armor part (1001). Under the push of the first spring (507), the cleaning plate (504) abuts against the surface of the steel armor part (1001) to clean the melted asphalt on the surface of the steel armor part (1001); S03. Under the guidance of the spiral groove (102), the rotating asphalt cleaning device (5) moves along the axial direction of the cable (10), thereby cleaning the entire length of the steel armor (1001); S04. After cleaning, the sealing body is removed, the cleaning plate (504) is removed, and a new cleaning plate (504) is replaced.

Images