An external force auxiliary support device for transformer drying

Abstract

The present invention belongs to the field of transformer drying equipment, and specifically is an external force auxiliary support device for transformer drying, comprising a fixed base and an adjusting column installed on the upper end of the fixed base, the fixed base and the adjusting column are threadedly connected, the upper end of the adjusting column is connected to a support plate through a bearing, an adjusting hole is opened on the surface of the adjusting column, the lower end of the fixed base is connected to the support base through a buffer structure, a rotating rod is arranged inside the adjusting hole, the adjusting hole and the rotating rod are detachably connected, and a limiting structure is arranged on the surface of the fixed base; the adjusting column is moved upward by rotating the rotating rod, so that the supporting plate at the end of the adjusting column contacts with the bottom of the coil, thereby supporting the coil, and then the supporting plate is limited by the limiting structure, so that when the transformer is dried, the influence of dehydration and deadweight on the transformer is reduced, which is beneficial to the drying of the transformer.

Description

Technical Field

[0001] The invention relates to the field of transformer drying equipment, in particular to an external force auxiliary supporting device for transformer drying. Background Art

[0002] The purpose of transformer drying is to remove moisture from the transformer insulation material, increase its insulation resistance, and improve its flashover voltage. Transformers with voltages above 3kV must be dried. When drying the transformer, a drying furnace is usually used to dry the transformer.

[0003] When the transformer is drying, due to dehydration and its own weight, the transformer's support plate, wire clamps and other components will sag, which may seriously cause component cracks and affect the normal use of the transformer. Therefore, in order to solve the above problem, an external force auxiliary support device for transformer drying is proposed. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technology, the present invention proposes an external force auxiliary support device for transformer drying.

[0005] The technical solution adopted by the present invention to solve its technical problem is: the external force auxiliary support device for transformer drying described in the present invention comprises a fixed base and an adjusting column installed on the upper end of the fixed base, the fixed base and the adjusting column are threadedly connected, the upper end of the adjusting column is connected to a support plate through a bearing, an adjusting hole is opened on the surface of the adjusting column, the lower end of the fixed base is connected to the support base through a buffer structure, a rotating rod is arranged inside the adjusting hole, the adjusting hole and the rotating rod are detachably connected, and a limiting structure is arranged on the surface of the fixed base; the coil is supported, and when the transformer is dried, the influence of dehydration and deadweight on the transformer is reduced, which is beneficial to the drying of the transformer, and the buffer structure between the supporting base and the fixed base can play a buffering role, and then can buffer the coil when it sags, reducing the possibility of wire withdrawal of the adjusting column.

[0006] Preferably, the outer surface of the upper end of the support plate is embedded with anti-slip bumps, and the anti-slip bumps are epoxy resin bumps, and the anti-slip bumps are fixedly connected to the support plate; the anti-slip bumps made of epoxy resin can prevent the support plate from directly contacting the coil and causing wear to the coil, thereby improving the use effect of the device.

[0007] Preferably, the buffer structure includes a sliding rod fixed to the inner wall of the fixed base, a fixed block is fixed on the surface of the sliding rod, a sliding block is sleeved on the surface of the sliding rod, the sliding block is connected to the fixed block by a fixed buffer spring, the buffer spring is sleeved on the surface of the sliding rod, the sliding block is connected to the supporting base by a transmission rod, and the transmission rod, the sliding block and the supporting base are all hinged; thereby improving the fixing effect, and when the transformer dehydrates and sags during the drying process of the transformer, the buffer structure can buffer the force exerted on the supporting plate, thereby reducing the phenomenon of wire withdrawal of the adjusting column and the fixed base.

[0008] Preferably, a limit plate is fixed on the inner wall of the fixed base, and the limit plate is symmetrically arranged on the inner wall of the fixed base; the fixed base can be limited to prevent the buffer spring from being damaged due to excessive force on the support plate.

[0009] Preferably, a sliding groove is provided on the outer surface of the side of the supporting base, and a sliding wheel is installed at the lower end of the fixed base. The sliding wheel is located at the lower end of the limiting plate, and the sliding wheel is adapted to the sliding groove, and the surface of the sliding wheel is in contact with the bottom of the sliding groove; the sliding friction between the fixed base and the supporting base is replaced by the rolling friction between the sliding wheel and the sliding groove, thereby reducing the friction force, thereby enabling the fixed base to slide more smoothly.

[0010] Preferably, the limiting structure includes a limiting ring fixed on the outer surface of the fixed base, and limiting columns are installed on the surface of the limiting ring. The limiting columns are threadedly connected to the limiting ring, and the limiting columns are symmetrically arranged on the surface of the limiting ring. They can limit the support plate and prevent the support plate from loosening after being subjected to force, thereby further improving the supporting effect.

[0011] Preferably, the end of the limit column is connected to a limit block via a bearing, the limit block is "L"-shaped, and the surface of the limit block fits the surface of the support plate; the limit block can increase the contact area between the limit column and the support plate, thereby improving the limiting effect.

[0012] Preferably, anti-slip strips are embedded on the surface of the limiting block, and the anti-slip strips are arranged in a straight line array on the surface of the limiting block; the limiting effect of the limiting block on the support plate can be increased by squeezing the anti-slip strips.

[0013] The present invention is beneficial in that:

[0014] 1. The present invention rotates the rotating rod to move the adjusting column upward, so that the support plate at the end of the adjusting column and the bottom of the coil are in conflict with each other, thereby supporting the coil, and then the support plate is limited by the limiting structure. When the transformer is dried, the influence of dehydration and deadweight on the transformer is reduced, which is conducive to the drying of the transformer;

[0015] 2. The present invention squeezes the fixed base to enable the transmission rod to drive the sliding block to slide on the sliding rod. During the sliding process of the sliding rod, the buffer spring will be squeezed. At this time, the buffer spring will rebound, thereby improving the fixing effect. In addition, when the transformer dehydrates and sags during the drying process of the transformer, the buffer structure can buffer the force exerted on the support plate, thereby reducing the phenomenon of wire withdrawal on the adjusting column and the fixed base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 labor.

[0017] Figure 1 is a three-dimensional diagram of the fixed base in the first embodiment;

[0018] Figure 2 is a cross-sectional view of the fixed base in the first embodiment;

[0019] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0020] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0021] Figure 5 for Figure 2 A partial enlarged view of point C in the middle;

[0022] Figure 6 It is a cross-sectional view of the transfer rod and the anti-slip sleeve in the second embodiment.

[0023] In the figure: 1. fixed base; 2. adjusting column; 3. support plate; 4. adjusting hole; 5. support base; 6. sliding rod; 7. fixed block; 8. sliding block; 9. buffer spring; 10. transmission rod; 11. limit plate; 12. limit ring; 13. limit column; 14. limit block; 15. anti-slip strip; 16. sliding groove; 17. sliding wheel; 18. anti-slip bump; 19. rotating rod; 20. anti-slip ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] See also Figure 1-5 As shown, an external force auxiliary support device for transformer drying comprises a fixed base 1 and an adjusting column 2 installed on the upper end of the fixed base 1, wherein the fixed base 1 and the adjusting column 2 are threadedly connected, the upper end of the adjusting column 2 is connected to a support plate 3 through a bearing, an adjusting hole 4 is provided on the surface of the adjusting column 2, the lower end of the fixed base 1 is connected to a support base 5 through a buffer structure, a rotating rod 19 is provided inside the adjusting hole 4, the adjusting hole 4 and the rotating rod 19 are detachably connected, and a limited position structure is provided on the surface of the fixed base 1; when the device is used to support the coil of the transformer, the fixed base 1 is placed under the coil. The end is then inserted into the adjusting hole 4 by the rotating rod 19, and the rotating rod 19 is rotated to move the adjusting column 2 upward, so that the supporting plate 3 at the end of the adjusting column 2 contacts with the bottom of the coil, thereby supporting the coil, and then the limiting structure is used to limit the supporting plate 3, and the twelve groups of devices are evenly placed at the lower end of the coil to support the coil. When the transformer is drying, the influence of dehydration and deadweight on the transformer is reduced, which is beneficial to the drying of the transformer. The buffer structure between the supporting base 5 and the fixed base 1 can play a buffering role, thereby being able to buffer the coil when it sags, reducing the possibility of the adjusting column 2 withdrawing the wire.

[0027] The outer surface of the upper end of the support plate 3 is embedded with an anti-skid bump 18, and the anti-skid bump 18 is an epoxy resin bump. The anti-skid bump 18 and the support plate 3 are fixedly connected. When the support plate 3 supports the coil, the friction between the support plate and the coil can be increased by squeezing the anti-skid bump 18, thereby improving the fixing effect. The anti-skid bump 18 made of epoxy resin can prevent the support plate 3 from directly contacting the coil and causing wear to the coil, thereby improving the use effect of the device.

[0028] The buffer structure includes a sliding rod 6 fixed to the inner wall of the fixed base 1, a fixed block 7 is fixed to the surface of the sliding rod 6, a sliding block 8 is sleeved on the surface of the sliding rod 6, the sliding block 8 is connected to the fixed block 7 by a fixed buffer spring 9, the buffer spring 9 is sleeved on the surface of the sliding rod 6, the sliding block 8 is connected to the support base 5 by a transmission rod 10, and the transmission rod 10 and the sliding block 8 and the support base 5 are all hinged; when the height of the adjusting column 2 is adjusted to support the transformer coil, the support base 5 will be squeezed, and the transmission rod 10 drives the sliding block 8 to slide on the sliding rod 6 by squeezing the fixed base 1, and the buffer spring 9 will be squeezed during the sliding of the sliding rod 6. At this time, the buffer spring 9 will rebound, and the fixed base 1 and the support base 5 will rebound by using the characteristics of the buffer spring 9, thereby improving the fixing effect, and when the transformer is dehydrated and droops during the drying process of the transformer, the force on the support plate 3 can be buffered by the buffer structure, reducing the phenomenon of wire withdrawal of the adjusting column 2 and the fixed base 1.

[0029] The inner wall of the fixed base 1 is fixed with a limiting plate 11, and the limiting plate 11 is symmetrically arranged on the inner wall of the fixed base 1; when the support plate 3 is subjected to excessive force, the fixed base 1 moves downward to cause the support base 5 to contact the limiting plate 11, thereby limiting the fixed base 1 to prevent the buffer spring 9 from being damaged due to excessive force on the support plate 3.

[0030] A sliding groove 16 is provided on the outer surface of the side of the supporting base 5, and a sliding wheel 17 is installed at the lower end of the fixed base 1. The sliding wheel 17 is located at the lower end of the limiting plate 11, and the sliding wheel 17 is adapted to the sliding groove 16, and the surface of the sliding wheel 17 fits with the bottom of the sliding groove 16; when the fixed base 1 moves downward after being subjected to force, the sliding wheel 17 rolls inside the sliding groove 16, and the sliding friction between the fixed base 1 and the supporting base 5 is replaced by the rolling friction between the sliding wheel 17 and the sliding groove 16, thereby reducing the friction force, thereby enabling the fixed base 1 to slide more smoothly, which is more conducive to buffering the pressure.

[0031] The limiting structure includes a limiting ring 12 fixed on the outer surface of the fixed base 1, and limiting columns 13 are installed on the surface of the limiting ring 12. The limiting columns 13 are threadedly connected to the limiting ring 12, and the limiting columns 13 are symmetrically arranged on the surface of the limiting ring 12; after the transformer is supported by the adjusting column 2, the limiting columns 13 are rotated so that their ends are in contact with the support plate 3, and the limiting columns 13 are tightened, and the two groups of limiting columns 13 are rotated accordingly to limit the support plate 3, which can prevent the support plate 3 from loosening after being subjected to force, thereby further improving the supporting effect.

[0032] The end of the limit column 13 is connected to the limit block 14 through a bearing, and the limit block 14 is "L"-shaped, and the surface of the limit block 14 fits the surface of the support plate 3; when the limit column 13 is rotated, the limit block 14 will be connected to the support plate 3, and the contact area between the limit column 13 and the support plate 3 can be increased through the limit block 14, thereby improving the limiting effect, and the L-shaped limit block 14 can be better connected to the support plate 3, further increasing the force area.

[0033] The surface of the limiting block 14 is embedded with anti-slip strips 15, and the anti-slip strips 15 are arranged in a straight line array on the surface of the limiting block 14; when the limiting block 14 is connected to the support plate 3, the anti-slip strips 15 will be squeezed, and the limiting effect of the limiting block 14 on the support plate 3 can be increased by squeezing the anti-slip strips 15.

[0034] Embodiment 2:

[0035] See also Figure 6 As shown, compared with Example 1, as another implementation of the present invention, the surface of the rotating rod 19 is provided with an anti-slip ring 20, and the anti-slip ring 20 is fixedly connected to the rotating rod 19, and the anti-slip ring 20 is located on the surface of the rotating rod 19 and arranged in a straight line array; when the adjusting column 2 is adjusted in height by inserting the rotating rod 19 into the adjusting hole 4, the friction between the user's palm and the rotating rod 19 can be increased by the anti-slip ring 20, thereby preventing the rotating rod 19 from slipping out of the hand when excessive force is used during rotation.

[0036] Working principle: when using the device to support the coil of the transformer, place the fixed base 1 at the lower end of the coil, then insert the rotating rod 19 into the adjusting hole 4, and rotate the rotating rod 19 to move the adjusting column 2 upward, so that the supporting plate 3 at the end of the adjusting column 2 conflicts with the bottom of the coil, and will squeeze the anti-slip protrusion 18. The anti-slip protrusion 18 can increase the friction between the supporting plate and the coil, thereby improving the fixing effect. At the same time, the anti-slip protrusion 18 made of epoxy resin can prevent the supporting plate 3 from directly contacting the coil and causing wear to the coil, thereby supporting the coil, and then rotating the limiting column 13 to make the limiting block 14 at its end contact with the supporting plate 3, and tighten the limiting column 13. In this way, the two groups of limiting columns 13 are rotated to limit the supporting plate 3, which can prevent the supporting plate 3 from loosening after being subjected to force, thereby further improving the supporting effect. In this way, the twelve groups of limiting columns 13 are The device is evenly placed at the lower end of the coil to support the coil. When the transformer is drying, the influence of dehydration and deadweight on the transformer is reduced, which is beneficial to the drying of the transformer. The buffer structure between the supporting base 5 and the fixed base 1 can play a buffering role. When the height of the adjusting column 2 is adjusted to support the transformer coil, the supporting base 5 will be squeezed. By squeezing the fixed base 1, the transmission rod 10 drives the sliding block 8 to slide on the sliding rod 6. During the sliding process of the sliding rod 6, the buffer spring 9 will be squeezed. At this time, the buffer spring 9 will rebound. The characteristics of the buffer spring 9 are used to rebound the fixed base 1 and the supporting base 5, thereby improving the fixing effect. When the transformer dehydrates and sags during the drying process of the transformer, the buffer structure can buffer the force on the support plate 3, reduce the phenomenon of wire withdrawal of the adjusting column 2 and the fixed base 1, and reduce the possibility of wire withdrawal of the adjusting column 2.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An external force auxiliary support device for transformer drying, characterized in that: The invention comprises a fixed base (1) and an adjusting column (2) installed on the upper end of the fixed base (1), wherein the fixed base (1) and the adjusting column (2) are threadedly connected, the upper end of the adjusting column (2) is connected to a support plate (3) via a bearing, an adjusting hole (4) is provided on the surface of the adjusting column (2), the lower end of the fixed base (1) is connected to a support base (5) via a buffer structure, a rotating rod (19) is provided inside the adjusting hole (4), the adjusting hole (4) and the rotating rod (19) are detachably connected, and a limiting structure is provided on the surface of the fixed base (1); the limiting structure comprises a limiting ring (12) fixed on the outer surface of the fixed base (1), a limiting column (13) is installed on the surface of the limiting ring (12), the limiting column (13) is threadedly connected to the limiting ring (12), and the limiting columns (13) are symmetrically arranged on the surface of the limiting ring (12); The support plate (3) is disc-shaped, the end of the limit column (13) is connected to the limit block (14) through a bearing, the limit block (14) is "L"-shaped, and the surface of the limit block (14) is in contact with the surface of the support plate (3); the surface of the limit block (14) is embedded with an anti-slip strip (15), and the anti-slip strip (15) is arranged on the surface of the limit block (14) in a straight line array; The buffer structure comprises a sliding rod (6) fixed on the inner wall of a fixed base (1); a fixed block (7) is fixed on the surface of the sliding rod (6); a sliding block (8) is sleeved on the surface of the sliding rod (6); the sliding block (8) is connected to the fixed block (7) via a fixed buffer spring (9); the buffer spring (9) is sleeved on the surface of the sliding rod (6); the sliding block (8) is connected to the supporting base (5) via a transmission rod (10); the transmission rod (10) is hinged to the sliding block (8) and the supporting base (5).

2. The external force auxiliary support device for transformer drying according to claim 1, characterized in that: An anti-skid block (18) is embedded on the outer surface of the upper end of the support plate (3); the anti-skid block (18) is an epoxy resin block; and the anti-skid block (18) and the support plate (3) are fixedly connected.

3. The external force auxiliary support device for transformer drying according to claim 1, characterized in that: The inner wall of the fixed base (1) is fixed with a limiting plate (11), and the limiting plates (11) are symmetrically arranged on the inner wall of the fixed base (1).

4. The external force auxiliary support device for transformer drying according to claim 3, characterized in that: The outer surface of the side edge of the support base (5) is provided with a sliding groove (16); the lower end of the fixed base (1) is provided with a sliding wheel (17); the sliding wheel (17) is located at the lower end of the limiting plate (11); the sliding wheel (17) is adapted to the sliding groove (16); the surface of the sliding wheel (17) is in contact with the bottom of the sliding groove (16).

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