Insulator drying device with hot air circulation

Abstract

The present invention relates to the technical field of insulator drying, and specifically discloses an insulator drying device with hot air circulation, comprising: a box body and an air outlet duct, a ring rail is provided inside the box body, and the bottom end of the air outlet duct extends to the middle of the ring rail, a movable platform is slidingly provided in the ring rail, and can slide along the ring rail and make a circular movement around the inlet and outlet air ducts; a material rack is provided on the movable platform, and can rotate relative to the movable platform during the sliding of the movable platform; the insulator drying device with hot air circulation of the present invention effectively improves the uniformity of heating between each material rack, between each insulator on the material rack, and between each part of the insulator itself, improves the drying effect and quality of the insulator, effectively reduces the drying time difference of each insulator, ensures that the drying time of all insulators is close to the same, and thus avoids the occurrence of over-drying, and at the same time, the push rod drives the insulator to rise and fall continuously, avoiding the insulator from being in contact with the support plate for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of insulator drying, and in particular to an insulator drying device with hot air circulation. Background Art

[0002] An insulator is a physical component used to support and separate electrical conductors in electrical equipment. It is usually composed of insulating parts and connecting metals. In power transmission lines, insulators provide mechanical fixation and electrical insulation for electrical equipment and conductors, support the weight of high-voltage lines, and at the same time isolate them from contact with transmission towers, preventing current from flowing through transmission towers to the ground. During production, the formed insulators need to be dried to remove moisture from the insulators.

[0003] In the existing method of drying insulators, the insulators are stacked on the racks and then sent to the drying room, where hot air is blown out by the air duct to dry the insulators at high temperature. However, the air duct is often located in the middle of the drying room, and a large number of racks are arranged in the drying room. The hot air blown out by the air duct cannot cover all the racks. The racks far away from the air duct cannot be directly blown by the hot air and can only be dried by the residual heat of the hot air in the room. This easily leads to the problem that the closer the racks are to the air duct, the more hot air blows on the insulators, the higher the temperature and the faster the drying speed. The racks farther away from the air duct are, the faster the drying speed will be. The farther the rack is, the less hot air blows on the insulator, the lower the temperature and the slower the drying speed. The insulators on different racks are heated unevenly, and the drying time varies greatly, which can easily lead to over-drying, causing the insulators to crack and be damaged. In addition, the insulators are fixed on the racks and are always in contact with and shielded by the racks. The hot air can only blow on the fixed parts of the insulators. The various parts of the insulators themselves are also heated unevenly, especially the parts that are not directly blown by the hot air and the parts shielded by the racks. The drying is slow, affecting the quality of the insulators. Summary of the Invention

[0004] The present invention provides an insulator drying device with hot air circulation, aiming to solve the problem in the related art that hot air cannot cover all material racks, insulators on different material racks are heated unevenly, and different parts of the insulators themselves are also heated unevenly.

[0005] The hot air circulation insulator drying device of the present invention comprises a box body and an air outlet pipe. An annular rail is provided inside the box body, and the bottom end of the air outlet pipe extends to the middle of the annular rail. A movable platform is slidably provided inside the annular rail and can slide along the annular rail to make an annular movement around the air inlet and outlet pipes.

[0006] The moving platform is provided with a material rack which can rotate relative to the moving platform when the moving platform slides;

[0007] An inner cylinder is provided on the material rack, and the inner cylinder can rotate relative to the material rack when the material rack is rotated to a certain angle. A support plate is fixedly installed inside the inner cylinder for supporting the insulator;

[0008] A push rod is provided inside the support plate for sliding with a single degree of freedom up and down, and the push rod can rise and fall inside the support plate as the inner tube rotates, pushing the insulator up and separating it from the support plate during lifting, and causing the insulator to fall back onto the support plate during lowering.

[0009] Preferably, the material rack is composed of a base, a column and a support ring. The base is arranged on a movable platform, the column is rotatably assembled inside the base, and the support ring is fixedly mounted on the column.

[0010] Preferably, there are multiple support rings distributed in a spiral shape around the column, and two adjacent support rings are staggered in the vertical direction.

[0011] Preferably, a socket is provided on the side wall of the column along its radial direction, a transverse shaft is fixedly mounted on the support ring, and one end of the transverse shaft away from the support ring is inserted into the socket.

[0012] Preferably, a circular platform is fixedly mounted on the top of the circular rail, a toothed belt is fixedly mounted on the side of the circular rail close to the movable platform, and a transmission gear meshing with the toothed belt is fixedly mounted on the bottom end of the column.

[0013] Preferably, a side plate is fixedly mounted on the base, and the top end of the column is rotatably connected to the side plate.

[0014] Preferably, an arc-shaped rack is fixedly mounted on the side plate, and the arc-shaped rack is coaxially arranged with the column, and a gear ring is coaxially fixed to the outside of the inner cylinder, which can engage with the arc-shaped rack when the inner cylinder is close to the side plate.

[0015] Preferably, a slot is provided on the top of the mobile platform, a rod and a balancing platform are fixedly mounted on the bottom of the base, the rod is inserted into the slot, and the bottom end of the balancing platform extends to the inside of the annular platform.

[0016] Preferably, a positioning platform is fixedly mounted on the horizontal axis, and the positioning platform is located directly below the inner cylinder. A reciprocating screw is vertically fixed on the positioning platform, and the top end of the reciprocating screw is rotatably connected to the support plate. A slider is provided on the reciprocating screw, which can be raised and lowered along the thread on the reciprocating screw during rotation, and the bottom end of the push rod is fixedly mounted on the slider.

[0017] Preferably, a fan is provided on the top of the box body, the top end of the air outlet pipe is provided at the air outlet end of the fan, and a return air pipe is fixedly installed inside the box body, and the return air pipe is communicated with the air inlet end of the fan.

[0018] Beneficial effects:

[0019] When in use, the present invention effectively improves the uniformity of heating between various material racks, between various insulators on the material racks, and between various parts of the insulators themselves, improves the drying effect and quality of the insulators, effectively reduces the drying time difference of various insulators, ensures that the drying time of all insulators is close to the same, and thus avoids over-drying. At the same time, the push rod drives the insulators to rise and fall continuously, avoiding long-term contact between the insulators and the support plate, reducing the shielding of the insulators by the support plate as much as possible, ensuring that the insulators are better and more comprehensively heated, and further improving the overall drying effect of the insulators. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a perspective view of the present invention.

[0021] Figure 2 This invention Figure 1 Front view of .

[0022] Figure 3 It is a structural schematic diagram of the interior of the box body of the present invention.

[0023] Figure 4 It is a three-dimensional diagram of the material rack and the ring rail of the present invention.

[0024] Figure 5 This invention Figure 4 Front view of .

[0025] Figure 6 It is a three-dimensional view of the material rack of the present invention.

[0026] Figure 7 This invention Figure 6 Front view of .

[0027] Figure 8 It is a structural schematic diagram of the bottom of the base of the present invention.

[0028] Figure 9 It is a structural diagram of the mobile station of the present invention.

[0029] Figure 10 It is a structural schematic diagram of the drying table of the present invention.

[0030] Figure 11 This is a structural diagram of the bottom of the drying table of the present invention.

[0031] Reference numerals:

[0032] 10. Box body; 11. Inlet and outlet; 20. Circulating air group; 21. Fan; 22. Air outlet duct; 23. Return air duct; 30. Annular rail; 31. Moving platform; 311. Slot; 32. Annular platform; 40. Material rack; 41. Base; 411. Side panel; 412. Insert rod; 413. Balancing platform; 42. Column; 43. Support ring; 431. Horizontal axis; 50. Drying platform; 51. Inner cylinder; 52. Support plate; 60. Transmission mechanism; 61. Toothed belt; 62. Transmission gear; 70. Toggle mechanism; 71. Arc rack; 72. Ring gear; 80. Pushing assembly; 81. Positioning platform; 811. Connecting rod; 82. Reciprocating screw; 83. Slider; 84. Push rod. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 11 As shown, the insulator drying device with hot air circulation of the present invention includes a box body 10, a circulating air group 20, a ring rail 30, a material rack 40, a drying table 50, a transmission mechanism 60, a toggle mechanism 70 and a pushing assembly 80. The circulating air group 20 and the ring rail 30 are both arranged in the box body 10. The drying table 50 is located on the material rack 40 and is used to support the insulators. The material rack 40 can be transported by the ring rail 30 to move around the air outlet position of the circulating air group 20. Hot air is sent into the material rack 40 by the circulating air group 20 to dry the insulators in the material rack 40. When the material rack 40 moves, the transmission mechanism 60 drives the material rack 40 to rotate, so that the multiple drying tables 50 on the material rack 40 alternately approach the air outlet position of the circulating air group 20. During this process, the toggle mechanism 70 toggle the drying table 50 to rotate in the material rack 40 to adjust the part of the insulator being blown, and under the action of the pushing assembly 80, the insulator is raised and lowered in the drying table 50 to avoid long-term contact between the insulator and the drying table 50 and affecting the overall heating of the insulator.

[0035] refer to Figure 1 , entrances and exits 11 are provided on the front and rear sides of the box body 10 , and box doors are provided on the entrances and exits 11 to facilitate the taking and placing of insulators and the closing of the box body 10 .

[0036] refer to Figures 1 to 3The circulating air group 20 includes a fan 21, an air outlet duct 22 and a return air duct 23. The fan 21 is fixedly mounted on the top of the box 10. The air outlet duct 22 is arranged at the air outlet end of the fan 21 and extends to the interior of the box 10. It is tapered as a whole and can guide the hot air to blow into the interior of the box 10. The return air duct 23 is fixedly mounted in the box 10, and the return air duct 23 is connected to the air inlet end of the fan 21. When the fan 21 takes in air, the hot air in the box 10 can be introduced into the fan 21 for recycling. In order to increase the air outlet area, the number of the air outlet ducts 22 can be multiple, and they are evenly distributed inside the box 10.

[0037] refer to Figures 2 to 5 The annular rail 30 is arranged inside the box body 10, and the bottom end of the air outlet pipe 22 extends to the middle of the annular rail 30. A plurality of movable platforms 31 are arranged in the annular rail 30, which can slide along the annular rail 30 and make circular motion around the air outlet pipe 22. A slot 311 is provided at the top of the movable platform 31, and an annular platform 32 is fixedly installed on the top of the annular rail 30 to facilitate the installation of the transmission mechanism 60.

[0038] refer to Figure 2 、 Figure 4 as well as Figure 7 The material rack 40 is composed of a base 41, a column 42 and a support ring 43. The base 41 is set on the movable platform 31, the column 42 is rotatably assembled inside the base 41, the support ring 43 is fixed to the column 42, and the drying platform 50 is set in the support ring 43. The base 41 moves around the air outlet pipe 22 under the drive of the movable platform 31, so that each material rack 40 can pass through the side of the air outlet pipe 22 in turn, ensuring that the hot air can directly blow and cover all material racks 40, thereby improving the uniformity of drying the insulators in multiple material racks 40 and reducing the difference in drying time of insulators between different material racks 40. There are multiple support rings 43 distributed in a spiral shape around the column 42, and the two adjacent support rings 43 are staggered up and down, thereby avoiding blocking of each other by the insulators and ensuring that the hot air can flow well between the multiple insulators.

[0039] A socket is provided on the side wall of the column 42 along its radial direction, and a horizontal shaft 431 is fixedly installed on the support ring 43, and the end of the horizontal shaft 431 away from the support ring 43 is inserted into the inside of the socket, thereby fixing the support ring 43 to the outside of the column 42, and a side plate 411 is fixedly installed on the base 41, and the top of the column 42 is rotatably connected to the side plate 411, and the side plate 411 supports the top of the column 42 to enhance the rotation stability of the column 42, and an insertion rod 412 and a balancing platform 413 are fixedly installed at the bottom of the base 41, and the insertion rod 412 is inserted into the inside of the slot 311, restricting the base 41 on the moving platform 31, so that the moving platform 31 can drive the base 41 to move, and the bottom end of the balancing platform 413 extends to the inside of the annular platform 32, providing auxiliary support to the base 41, ensuring that the base 41 can remain stable while following the movement of the moving platform 31.

[0040] refer to Figure 10 and Figure 11 The drying table 50 includes an inner cylinder 51 and a support plate 52. The inner cylinder 51 is coaxially rotatably assembled inside the support ring 43. The support plate 52 is fixedly installed inside the inner cylinder 51 to support the insulator. In order to ensure the air permeability of the support plate 52, the support plate 52 can be a plate with through holes such as a mesh plate or a grid plate.

[0041] refer to Figure 2 、 Figure 4 、 Figure 5 as well as Figure 8 The transmission mechanism 60 includes a toothed belt 61 and a transmission gear 62. The toothed belt 61 is fixedly mounted on the side wall of the annular rail 30 near the movable platform 31. The transmission gear 62 is fixedly mounted on the bottom end of the column 42, and the transmission gear 62 is meshed with the toothed belt 61. When the movable platform 31 moves with the base 41, the toothed belt 61 pushes the transmission gear 62 to rotate with the column 42, so that the drying table 50 rotates around the column 42, so that multiple drying tables 50 on the same material rack 40 can pass by the side of the air outlet pipe 22 in turn, so that the hot air can directly blow each drying table 50 and insulator on the material rack 40 at a close distance, thereby improving the uniformity of drying multiple insulators in the same material rack 40 and reducing the difference in drying time between different insulators in the same material rack 40.

[0042] refer to Figures 4 to 7The toggle mechanism 70 includes an arc-shaped rack 71 and a gear ring 72. The arc-shaped rack 71 is fixedly mounted on the side plate 411 and is coaxially arranged with the column 42. The gear ring 72 is coaxially fixed to the outside of the inner cylinder 51 and is located below the support ring 43. It can engage with the arc-shaped rack 71 when the inner cylinder 51 is close to the side plate 411, and then the arc-shaped rack 71 pushes the gear ring 72 to rotate, driving the inner cylinder 51 to rotate in the support ring 43, causing the insulator to rotate, and then changing the direct blowing position of the hot air when the insulator passes by the side of the air outlet pipe 22, ensuring that the circumference of the insulator can be evenly heated, thereby improving the quality of the insulator.

[0043] refer to Figure 10 as well as Figure 11 The pushing assembly 80 includes a positioning platform 81, a reciprocating screw 82, a slider 83 and a push rod 84. The positioning platform 81 is located just below the inner cylinder 51 and is fixed to the horizontal axis 431. The reciprocating screw 82 is vertically fixed on the positioning platform 81, and the top end of the reciprocating screw 82 is rotatably connected to the support plate 52. The slider 83 is set on the reciprocating screw 82 and can be lifted and lowered along the thread on the reciprocating screw 82 during rotation. The bottom end of the push rod 84 is fixedly mounted on the slider 83, and the top end of the push rod 84 passes through the support plate 52 and extends above the support plate 52, which can be lifted and lowered on the support plate 52. The upper and lower single-degree-of-freedom sliding enables the push rod 84 to be lifted along with the slider 83, pushing the insulator upward to separate it from the support plate 52. As the slider 83 descends, the insulator falls back onto the support plate 52, effectively avoiding long-term contact between the insulator and the support plate 52, ensuring that the heating of the insulator will not be affected by the support plate 52, improving the overall heating effect of the insulator, and then improving the drying efficiency and drying quality of the insulator. An L-shaped connecting rod 811 is fixedly connected to the positioning platform 81, and the top end of the connecting rod 811 is fixedly connected to the horizontal axis 431.

[0044] Working principle: Place the insulator buckle on the support plate 52 in the inner tube 51, move the movable platform 31 along the circular track 30, and drive the base 41 to move in a circular motion around the air outlet pipe 22, so that multiple material racks 40 circulate in sequence and pass by the side of the air outlet pipe 22, so that hot air can directly blow and cover each material rack 40, thereby improving drying efficiency.

[0045] As the base 41 moves, the toothed belt 61 drives the transmission gear 62 to rotate, so that the column 42 rotates in the base 41, and the support ring 43 rotates and moves around the column 42, so that the multiple drying platforms 50 on the material rack 40 are successively close to the side of the air outlet pipe 22, and the hot air is blown directly at a close distance to each insulator on the material rack 40.

[0046] As the support ring 43 rotates and moves closer to the side plate 411, the arc-shaped rack 71 pushes the gear ring 72 to rotate with the inner cylinder 51, changing the position of the insulator where the hot air blows closely when the drying platform 50 passes by the air outlet duct 22, so that all parts of the insulator are evenly heated.

[0047] When the inner cylinder 51 is rotating, the support plate 52 pushes the push rod 84 to make the slider 83 rotate on the reciprocating screw 82, and the slider 83 moves up and down along the reciprocating screw 82. When the slider 83 rises, the push rod 84 pushes the insulator upward to separate it from the support plate 52. When the slider 83 falls, the push rod 84 falls and makes the insulator fall onto the support plate 52 again, so that the insulator constantly rises and falls in the drying table 50, effectively preventing the insulator from contacting the support plate 52 and the push rod 84 for a long time.

[0048] In the present invention, the material rack 40 circulates along the annular rail 30 around the air outlet pipe 22, so that all the material racks 40 can be directly blown by the hot air at a close distance, thereby improving the uniformity of heating of each material rack 40. In the process of the material rack 40 moving around the air outlet pipe 22, the insulator is rotated around the column 42, so that all the insulators on the material rack 40 can pass by the side of the air outlet pipe 22 and be blown by the hot air at a close distance, thereby improving the uniformity of heating between the insulators on the material rack 40. In the process of the insulator moving around the column 42, the inner cylinder 51 gradually rotates with the insulator to adjust the position of the insulator surface directly blown by the hot air, thereby improving The uniformity of heating of various parts of the insulator itself can effectively improve the uniformity of heating between various material racks 40, between various insulators on the material racks 40, and between various parts of the insulator itself when drying the insulators, thereby improving the drying effect and quality of the insulators, effectively reducing the drying time difference of various insulators, ensuring that the drying time of all insulators is close to the same, and thus avoiding over-drying. At the same time, the push rod 84 drives the insulator to rise and fall continuously, avoiding long-term contact between the insulator and the support plate 52, minimizing the shielding of the insulator by the support plate 52, ensuring that the insulator is well heated overall, and further improving the overall drying effect of the insulator.

[0049] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A hot air circulation insulator drying device, comprising a box (10) and an air outlet pipe (22), characterized in that: An annular rail (30) is provided inside the box (10), and the bottom end of the air outlet pipe (22) extends to the middle of the annular rail (30). A moving platform (31) is slidably provided inside the annular rail (30) and can slide along the annular rail (30) and move in an annular manner around the air inlet and outlet pipes (22); A material rack (40) is provided on the movable platform (31) and is capable of rotating relative to the movable platform (31) when the movable platform (31) slides; An inner cylinder (51) is provided on the material rack (40), and the inner cylinder (51) can rotate relative to the material rack (40) when the material rack (40) rotates to a certain angle. A support plate (52) is fixedly installed inside the inner cylinder (51) for supporting the insulator. A push rod (84) is provided inside the support plate (52) for sliding movement with a single degree of freedom, and the push rod (84) can be raised and lowered in the support plate (52) as the inner cylinder (51) rotates, pushing the insulator to rise and separate from the support plate (52) during the lifting process, and causing the insulator to fall back onto the support plate (52) during the lowering process; The material rack (40) is composed of a base (41), a column (42) and a support ring (43), the base (41) is set on the movable platform (31), the column (42) is rotatably assembled inside the base (41), and the support ring (43) is fixedly installed on the column (42); A socket is provided on the side wall of the column (42) along its radial direction, a transverse shaft (431) is fixedly mounted on the support ring (43), and an end of the transverse shaft (431) away from the support ring (43) is inserted into the socket; A positioning platform (81) is fixedly mounted on the transverse shaft (431), and the positioning platform (81) is located directly below the inner cylinder (51). A reciprocating screw (82) is vertically fixed on the positioning platform (81), and the top end of the reciprocating screw (82) is rotatably connected to the support plate (52). A slider (83) is provided on the reciprocating screw (82), which can be raised and lowered along the thread on the reciprocating screw (82) during rotation. The bottom end of the push rod (84) is fixedly mounted on the slider (83).

2. The hot air circulation insulator drying device according to claim 1, characterized in that: The support rings (43) are arranged in a spiral shape around the pillar (42), and two adjacent support rings (43) are staggered in the vertical direction.

3. The hot air circulation insulator drying device according to claim 1, characterized in that: A ring platform (32) is fixedly mounted on the top of the ring rail (30), a toothed belt (61) is fixedly mounted on one side of the ring rail (30) close to the movable platform (31), and a transmission gear (62) meshing with the toothed belt (61) is fixedly mounted on the bottom end of the column (42).

4. The hot air circulation insulator drying device according to claim 3, characterized in that: A side plate (411) is fixedly mounted on the base (41), and the top end of the column (42) is rotatably connected to the side plate (411).

5. The hot air circulation insulator drying device according to claim 4, characterized in that: An arc-shaped rack (71) is fixedly mounted on the side plate (411), and the arc-shaped rack (71) is coaxially arranged with the column (42). A gear ring (72) is coaxially fixed to the outside of the inner cylinder (51), and can mesh with the arc-shaped rack (71) when the inner cylinder (51) is close to the side plate (411).

6. The hot air circulation insulator drying device according to claim 5, characterized in that: A slot (311) is provided on the top of the mobile platform (31), and a plug rod (412) and a balancing platform (413) are fixedly installed on the bottom of the base (41), wherein the plug rod (412) is inserted into the slot (311), and the bottom end of the balancing platform (413) extends into the inside of the annular platform (32).

7. The hot air circulation insulator drying device according to any one of claims 1 to 6, characterized in that: A fan (21) is provided on the top of the box (10), and the top end of the air outlet pipe (22) is provided at the air outlet end of the fan (21). A return air pipe (23) is also fixedly installed inside the box (10), and the return air pipe (23) is connected to the air inlet end of the fan (21).

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