Insulating cylinder for high-voltage coil and low-voltage coil of transformer

Abstract

The utility model relates to the technical field of transformers, and discloses an insulating cylinder for high and low voltage coils of a transformer, which comprises a main body mechanism and a supporting mechanism, the supporting mechanism is positioned in the main body mechanism, and the main body mechanism comprises an insulating cylinder body, a low voltage coil layer, an outer supporting part, a supporting pad and an inner supporting plate, the low-voltage coil layer is fixedly arranged in the insulating cylinder body, the outer supporting part is fixedly installed at the inner end of the insulating cylinder body, and the supporting pad is fixedly installed at the outer end of the low-voltage coil layer. According to the insulating cylinder for the high-voltage coil and the low-voltage coil of the transformer, by installing the main body mechanism, when the cylinder body of the insulating cylinder is used, a damping steel sleeve and a piston rod are designed to provide a supporting effect for a damping spring, so that the cylinder body of the insulating cylinder has good buffering performance, and meanwhile, the stability of the structure is improved; damage to the damping spring in the long-time using process of the insulating cylinder body is reduced, and the protection performance and durability of the insulating cylinder body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an insulating cylinder for high and low voltage coils of transformers. Background Art

[0002] The insulation cylinder is one of the important accessories of the transformer to improve the insulation performance of the transformer and ensure the voltage resistance of the transformer.

[0003] The existing technical disclosure number CN210156244U patent document provides a high-voltage transformer coil structure. The cylinder of the utility model firmly supports the outer edge of the low-voltage coil layer through the external support part, the support rod and the sphere, thereby improving the stability of the entire cylinder, and having good insulation performance and good voltage resistance performance.

[0004] However, when the existing insulating cylinder for high and low voltage coils of transformers is in use, the single spring structure as a supporting structure leads to poor stability. During the long-term use of the spring, deformation is prone to occur, resulting in poor recovery of its elastic potential energy, which directly affects the stability of the connection between the insulating cylinder and the low voltage coil, and affects the structural strength of the transformer. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide an insulating cylinder for transformer high and low voltage coils, so as to solve the problem in the above background technology that the existing insulating cylinder for transformer high and low voltage coils has poor stability due to a single spring structure as a supporting structure when in use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an insulating cylinder for high and low voltage coils of a transformer, comprising a main body mechanism and a supporting mechanism, wherein the supporting mechanism is located inside the main body mechanism, the main body mechanism comprises an insulating cylinder body, a low voltage coil layer, an outer supporting portion, a supporting pad and an inner supporting plate, wherein the low voltage coil layer is fixedly arranged inside the insulating cylinder body, the outer supporting portion is fixedly installed on the inner end of the insulating cylinder body, the supporting pad is fixedly installed on the outer end of the low voltage coil layer, and the inner supporting plate is movably installed inside the outer supporting portion;

[0009] The main body mechanism also includes a damping sleeve, a damping spring, a piston rod, a winding membrane and a high-voltage coil layer. The damping sleeve is fixedly mounted on the inner end of the inner support plate, the damping spring is fixedly mounted on the inner end of the inner support plate, the inner end of the damping spring is fixedly connected to the support pad, the piston rod is fixedly mounted on the outer end of the support pad, and the piston rod is movably connected to the damping sleeve.

[0010] Preferably, the support mechanism includes an inner support rod and a connecting rod, the inner support rod is fixedly mounted inside the outer support portion, the inner support plate is slidably connected to the inner support rod, and the connecting rod is movably mounted on the lower end of the inner support plate.

[0011] Preferably, the support mechanism further includes a limit plate and a limit slide groove, the limit plate is movably mounted on the outer end of the inner support rod, the limit slide groove is fixedly arranged on both sides inside the outer support part, and the limit plate is slidably connected to the limit slide groove.

[0012] Preferably, the support mechanism further comprises a positioning block and a fixing rod, wherein the positioning block is fixedly mounted on both sides of the interior of the limiting plate, and the fixing rod is fixedly mounted on the inner end of the positioning block.

[0013] Preferably, the supporting mechanism also includes a connecting spring and a pushing block, the connecting spring is fixedly mounted on the inner end of the positioning block, the connecting spring is located at the outer end of the fixing rod, the pushing block is fixedly mounted on the inner end of the connecting spring, the pushing block is slidably connected to the fixing rod, and the connecting rod is movably connected to the pushing block.

[0014] Preferably, the support mechanism further comprises a fixing pad and a supporting sleeve, wherein the fixing pad is fixedly mounted inside the outer supporting portion, and the supporting sleeve is fixedly mounted on an inner end of the fixing pad.

[0015] Preferably, the support mechanism further includes a reinforcing rod and a support spring, the reinforcing rod is fixedly mounted on the outer end of the limiting plate, the support spring is fixedly mounted on the inner end of the fixing pad, and the inner end of the support spring is fixedly connected to the limiting plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The insulating cylinder for high and low voltage coils of the transformer is installed with the main body mechanism, so that when the insulating cylinder body is in use, the design of the damping steel sleeve and the piston rod provides a supporting effect for the damping spring, so that the insulating cylinder body has good buffering performance and improves the stability of the structure, reduces the damage to the damping spring caused by the insulating cylinder body during long-term use, and improves the protection and durability of the insulating cylinder body;

[0018] 2. The insulating cylinder for the high and low voltage coils of the transformer is equipped with a supporting mechanism, so that when the insulating cylinder body is in use, the design of the connecting spring and the supporting spring can share the force exerted on the damping spring, thereby further improving the anti-extrusion and rebound performance of the damping spring. The design of the inner support rod and the limit plate provides a guiding effect for the insulating cylinder body, reduces the deformation of the insulating cylinder body caused by external forces, and further improves the structural stability of the insulating cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the main mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the support mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the local details of the insulating cylinder body of the utility model.

[0023] In the figure: 1. main body; 101. insulating cylinder body; 102. low-voltage coil layer; 103. outer support; 104. support pad; 105. inner support plate; 106. damping sleeve; 107. damping spring; 108. piston rod; 109. winding tire membrane; 110. high-voltage coil layer; 2. support mechanism; 201. inner support rod; 202. connecting rod; 203. limit plate; 204. limit slide groove; 205. positioning block; 206. fixing rod; 207. connecting spring; 208. pushing block; 209. fixing pad; 210. support sleeve; 211. reinforcement rod; 212. support spring. DETAILED DESCRIPTION

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

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: an insulating cylinder for high and low voltage coils of a transformer, comprising a main body mechanism 1 and a support mechanism 2, the support mechanism 2 is located inside the main body mechanism 1, the main body mechanism 1 comprises an insulating cylinder body 101, a low voltage coil layer 102, an outer support portion 103, a support pad 104 and an inner support plate 105, the low voltage coil layer 102 is fixedly arranged inside the insulating cylinder body 101, the outer support portion 103 is fixedly installed at the inner end of the insulating cylinder body 101, the support pad 104 is fixedly installed at the outer end of the low voltage coil layer 102, and the inner support plate 105 is movably installed inside the outer support portion 103;

[0026] The main body mechanism 1 also includes a damping sleeve 106, a damping spring 107, a piston rod 108, a winding membrane 109 and a high-voltage coil layer 110. The damping sleeve 106 is fixedly mounted on the inner end of the inner support plate 105, the damping spring 107 is fixedly mounted on the inner end of the inner support plate 105, the inner end of the damping spring 107 is fixedly connected to the support pad 104, the piston rod 108 is fixedly mounted on the outer end of the support pad 104, and the piston rod 108 is movably connected to the damping sleeve 106. During the use of the insulating cylinder body 101, when it is impacted by external force, the outer support part 103 and the support pad 104 are compressed, and the support pad 104 squeezes the damping spring 107, so that a piston movement occurs at the connection between the piston rod 108 and the damping sleeve 106, and the damping spring 107 buffers the vibration it receives, thereby reducing damage to the structure of the insulating cylinder body 101.

[0027] The supporting mechanism 2 includes an inner supporting rod 201 and a connecting rod 202, wherein the inner supporting rod 201 is fixedly mounted inside the outer supporting portion 103, the inner supporting plate 105 is slidably connected to the inner supporting rod 201, and the connecting rod 202 is movably mounted on the lower end of the inner supporting plate 105. The supporting mechanism 2 also includes a limiting plate 203 and a limiting slide groove 204, wherein the limiting plate 203 is movably mounted on the outer end of the inner supporting rod 201, and the limiting slide groove 204 is fixedly arranged on both sides of the inner part of the outer supporting portion 103, and the limiting plate 203 is slidably connected to the limiting slide groove 204. The supporting mechanism 2 also includes a positioning block 205 and a fixing rod 206, wherein the positioning block 205 is fixedly mounted on the limiting plate 2 03, the fixing rod 206 is fixedly mounted on the inner end of the positioning block 205, the supporting mechanism 2 also includes a connecting spring 207 and a pushing block 208, the connecting spring 207 is fixedly mounted on the inner end of the positioning block 205, the connecting spring 207 is located at the outer end of the fixing rod 206, the pushing block 208 is fixedly mounted on the inner end of the connecting spring 207, the pushing block 208 is slidably connected to the fixing rod 206, the connecting rod 202 is movably connected to the pushing block 208, the supporting mechanism 2 also includes a fixing pad 209 and a supporting sleeve 210, the fixing pad 209 is fixedly mounted on the inside of the outer supporting part 103, and the supporting sleeve 210 is fixedly mounted on the fixing pad 209 The inner end of the support mechanism 2 also includes a reinforcing rod 211 and a supporting spring 212. The reinforcing rod 211 is fixedly mounted on the outer end of the limit plate 203. The supporting spring 212 is fixedly mounted on the inner end of the fixed pad 209. The inner end of the supporting spring 212 is fixedly connected to the limit plate 203. The damping sleeve 106 squeezes the inner support plate 105 so that the inner support plate 105 slides on the inner support rod 201. Under the squeezing of the inner support plate 105, the connecting rod 202 is squeezed so that the angle of the connecting rod 202 changes. The connecting rod 202 squeezes the pushing block 208 so that the pushing block 208 slides on the fixed rod 206. 207 is compressed, and the connecting spring 207 shares the force exerted on the damping spring 107. During the force exerted on the pushing block 208, a certain force is exerted on the limit plate 203, so that the limit plate 203 slides on the inner support rod 201 and slides inside the limit slide groove 204. Under the movement of the limit plate 203, the reinforcing rod 211 and the supporting spring 212 are compressed, so that the reinforcing rod 211 slides inside the supporting sleeve 210. At this time, the supporting spring 212 buffers the impact force exerted on the damping spring 107 to reduce the damage to the damping spring 107 caused by external force, thereby improving the durability of the insulating cylinder body 101.

[0028] Working principle: During the use of the insulating cylinder body 101, when it is impacted by external force, the outer support part 103 and the support pad 104 are compressed, and the support pad 104 squeezes the damping spring 107, so that the connection between the piston rod 108 and the damping sleeve 106 undergoes piston movement, and the damping spring 107 buffers the vibration it receives, thereby reducing damage to the structure of the insulating cylinder body 101. At the same time, the damping sleeve 106 squeezes the inner support plate 105, so that the inner support plate 105 slides on the inner support rod 201. Under the squeezing of the inner support plate 105, the connecting rod 202 is squeezed, so that the angle of the connecting rod 202 changes, and the connecting rod 202 squeezes the push block 208. , so that the pushing block 208 slides on the fixing rod 206, compressing the connecting spring 207. The connecting spring 207 shares the force exerted on the damping spring 107. During the force exerted on the pushing block 208, a certain force is exerted on the limiting plate 203, so that the limiting plate 203 slides on the inner support rod 201 and slides inside the limiting slide groove 204. Under the movement of the limiting plate 203, the reinforcing rod 211 and the supporting spring 212 are compressed, so that the reinforcing rod 211 slides inside the supporting sleeve 210. At this time, the supporting spring 212 buffers the impact force exerted on the damping spring 107 to reduce the damage to the damping spring 107 caused by external forces, thereby improving the durability of the insulating cylinder body 101.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An insulating cylinder for transformer high and low voltage coils, comprising a main body (1) and a support mechanism (2), characterized in that: The support mechanism (2) is located inside the main mechanism (1), and the main mechanism (1) comprises an insulating cylinder body (101), a low-voltage coil layer (102), an external support portion (103), a support pad (104), and an internal support plate (105); the low-voltage coil layer (102) is fixedly arranged inside the insulating cylinder body (101), the external support portion (103) is fixedly mounted on the inner end of the insulating cylinder body (101), the support pad (104) is fixedly mounted on the outer end of the low-voltage coil layer (102), and the internal support plate (105) is movably mounted inside the external support portion (103); The main body mechanism (1) further comprises a damping sleeve (106), a damping spring (107), a piston rod (108), a winding membrane (109) and a high-voltage coil layer (110); the damping sleeve (106) is fixedly mounted on the inner end of the inner support plate (105); the damping spring (107) is fixedly mounted on the inner end of the inner support plate (105); the inner end of the damping spring (107) is fixedly connected to the support pad (104); the piston rod (108) is fixedly mounted on the outer end of the support pad (104); and the piston rod (108) is movably connected to the damping sleeve (106).

2. The insulating cylinder for transformer high and low voltage coils according to claim 1, characterized in that: The support mechanism (2) comprises an inner support rod (201) and a connecting rod (202); the inner support rod (201) is fixedly mounted inside the outer support portion (103); the inner support plate (105) is slidably connected to the inner support rod (201); and the connecting rod (202) is movably mounted on the lower end of the inner support plate (105).

3. The insulating cylinder for transformer high and low voltage coils according to claim 2, characterized in that: The support mechanism (2) further comprises a limit plate (203) and a limit slide groove (204); the limit plate (203) is movably mounted on the outer end of the inner support rod (201); the limit slide groove (204) is fixedly arranged on both sides inside the outer support portion (103); and the limit plate (203) is slidably connected to the limit slide groove (204).

4. The insulating cylinder for transformer high and low voltage coils according to claim 3, characterized in that: The support mechanism (2) further comprises a positioning block (205) and a fixing rod (206), wherein the positioning block (205) is fixedly mounted on both sides of the interior of the limiting plate (203), and the fixing rod (206) is fixedly mounted on the inner end of the positioning block (205).

5. The insulating cylinder for transformer high and low voltage coils according to claim 4, characterized in that: The support mechanism (2) further comprises a connecting spring (207) and a pushing block (208); the connecting spring (207) is fixedly mounted on the inner end of the positioning block (205); the connecting spring (207) is located at the outer end of the fixing rod (206); the pushing block (208) is fixedly mounted on the inner end of the connecting spring (207); the pushing block (208) is slidably connected to the fixing rod (206); and the connecting rod (202) is movably connected to the pushing block (208).

6. The insulating cylinder for transformer high and low voltage coils according to claim 5, characterized in that: The support mechanism (2) further comprises a fixing pad (209) and a supporting sleeve (210), wherein the fixing pad (209) is fixedly mounted inside the outer supporting portion (103), and the supporting sleeve (210) is fixedly mounted on the inner end of the fixing pad (209).

7. The insulating cylinder for transformer high and low voltage coils according to claim 6, characterized in that: The support mechanism (2) further comprises a reinforcing rod (211) and a supporting spring (212); the reinforcing rod (211) is fixedly mounted on the outer end of the limiting plate (203); the supporting spring (212) is fixedly mounted on the inner end of the fixing pad (209); and the inner end of the supporting spring (212) is fixedly connected to the limiting plate (203).

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