Power transformer iron core clamping device

Abstract

The utility model relates to the technical field of power transformers, and discloses a power transformer iron core clamping device which solves the problem that an iron core is difficult to clamp at present, and comprises a support, a clamping mechanism is arranged on the support and comprises a first U-shaped round rod fixed to the top of the support, the outer side of the first U-shaped round rod is movably connected with a lifting plate in a sleeved mode, and the lifting plate is arranged on the support. The bottom of the lifting plate is fixedly connected with a pressing plate, the inner side of the support is fixedly connected with a transverse column, the outer side of the transverse column is symmetrically and movably sleeved with two limiting plates, the bottoms of the two limiting plates are both provided with supporting wheels abutting against the support, and the inner side of the support is fixedly provided with a containing table located between the two limiting plates. The middle of the outer side of the transverse column is fixedly sleeved with the containing table, and the containing table is located under the pressing plate. According to the iron core clamping device, through cooperation of the bidirectional lead screw, the nut, the guide plate, the guide rod, the second U-shaped round rod, the limiting plate and the transverse column, an iron core can be clamped left and right, and therefore the iron core can be clamped conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of power transformer technology, specifically a power transformer core clamping device. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core. After stacking, the transformer iron core needs to be clamped before packaging. According to the patent document CN213211955U, entitled "A Clamping Device for the Iron Core of a Dry-Type Power Transformer," it includes a base with a circular groove at its top. A first rotary motor with its output shaft pointing vertically upwards is fixedly installed in the groove. The output shaft of the first rotary motor is connected to a turntable. Two telescopic motors with their output shafts pointing vertically upwards are fixedly installed at the top of the turntable. The output shafts of each telescopic motor are connected to a second rotary motor facing opposite directions. A fixing frame connects the second rotary motors. The fixing frame has four rectangular grooves arranged in a circular array. Two springs are fixedly installed in each groove. A motor and a fixing block are fixedly installed at the top of each of the two springs. Connecting rods are installed at the bottom of both the motor and the fixing block. A roller is fixedly connected to the output shaft of the motor, and one end of the roller is rotatably connected to the fixing block. However, the following defects still exist:

[0003] It uses only the elastic force of the spring and the friction of the roller to fix the iron core, but the spring has elasticity, making it difficult to clamp the iron core tightly. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a power transformer core clamping device, which effectively solves the current problem of difficulty in clamping the core.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power transformer core clamping device, including a bracket, on which a clamping mechanism is provided;

[0006] The clamping mechanism includes a U-shaped rod fixed to the top of the bracket. A lifting plate is movably sleeved on the outer side of the U-shaped rod. A pressure plate is fixedly connected to the bottom of the lifting plate. A horizontal column is fixedly connected to the inner side of the bracket. Two limiting plates are symmetrically movably sleeved on the outer side of the horizontal column. The bottom of each limiting plate is provided with a support wheel that abuts against the bracket. A placement platform located between the two limiting plates is fixedly installed on the inner side of the bracket. The placement platform is fixedly sleeved on the middle of the outer side of the horizontal column and is located directly below the pressure plate.

[0007] Preferably, a sleeve block is fixedly sleeved on the middle of the outer side of the U-shaped rod, and a cylinder is fixedly installed between the bottom of the sleeve block and the top of the lifting plate.

[0008] Preferably, the lifting plate is provided with two guide grooves symmetrically, and a guide rod is fixedly connected in each of the two guide grooves. A guide plate is movably sleeved on the outer side of each of the two guide rods.

[0009] Preferably, each of the two limiting plates is fixedly connected to a U-shaped rod on the side away from each other, and the two guide plates are respectively movably sleeved on the outside of the two U-shaped rods.

[0010] Preferably, the top of the lifting plate is symmetrically fixedly connected to two top blocks, both of which are movably sleeved on the outside of the U-shaped round rod. A bidirectional lead screw is rotatably connected between the two top blocks, and two threaded nuts are symmetrically threaded on the outside of the bidirectional lead screw. The two threaded nuts are respectively fixed to the top of the two guide plates.

[0011] Preferably, a support plate is fixedly installed on the outer side of the pressure plate, a drive motor is fixedly installed on the top of the support plate, a drive shaft is fixedly connected to the drive motor, a drive bevel gear is fixedly installed on the top of the drive shaft, a driven bevel gear is fixedly installed on the outer side of the bidirectional lead screw, the driven bevel gear meshes with the drive bevel gear, and the drive shaft passes through the lifting plate and is rotatably connected to the lifting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The cooperation between the cylinder, lifting plate, U-shaped round rod one, pressure plate and placement platform facilitates the vertical clamping of the iron core, and the cooperation between the double screw, screw nut, guide plate, guide rod, U-shaped round rod two, limit plate and cross column enables the horizontal clamping of the iron core, thus facilitating the clamping of the iron core;

[0014] 2. The rotation of the bidirectional lead screw is facilitated by the cooperation between the drive motor, drive shaft, drive bevel gear, and driven bevel gear, which makes it easier for the two limit plates to move closer to each other and clamp the iron core left and right. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of the power transformer core clamping device of this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the bidirectional lead screw structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the lifting plate structure of this utility model.

[0022] In the diagram: 1. Bracket; 2. Clamping mechanism; 201. U-shaped round rod one; 202. Top block; 203. Guide rod; 204. Limiting plate; 205. Pressure plate; 206. Placement platform; 207. Support wheel; 208. Horizontal column; 209. Guide plate; 2010. Nut; 2011. Lifting plate; 2012. Cylinder; 2013. Sleeve block; 2014. Double-acting lead screw; 2015. Guide groove; 2016. U-shaped round rod two; 2017. Driven bevel gear; 2018. Drive bevel gear; 2019. Drive shaft; 2020. Support plate; 2021. Drive motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 The present invention relates to a clamping device for the core of a power transformer, comprising a bracket 1, wherein a clamping mechanism 2 is provided on the bracket 1.

[0025] Specifically, by Figure 2-3The clamping mechanism 2 includes a U-shaped cylindrical rod 201 fixed to the top of the bracket 1. A lifting plate 2011 is movably sleeved on the outer side of the U-shaped cylindrical rod 201. A pressure plate 205 is fixedly connected to the bottom of the lifting plate 2011. A horizontal column 208 is fixedly connected to the inner side of the bracket 1. Two limiting plates 204 are symmetrically movably sleeved on the outer side of the horizontal column 208. The bottom of each limiting plate 204 is provided with a support wheel 207 that abuts against the bracket 1. A placement platform 206 is fixedly installed on the inner side of the bracket 1, located between the two limiting plates 204. The placement platform 206 is fixedly sleeved on the outer middle of the horizontal column 208, and the placement platform 206 is located directly below the pressure plate 205. A sleeve block 2013 is fixedly sleeved on the outer middle of the U-shaped cylindrical rod 201. The bottom of the sleeve block 2013 is fixedly installed between the top of the lifting plate 2011 and the outer middle of the U-shaped cylindrical rod 201. Equipped with a cylinder 2012, the lifting plate 2011 has two symmetrically arranged guide grooves 2015, each guide groove 2015 is fixedly connected to a guide rod 203, and each guide rod 203 is movably sleeved on the outside of a guide plate 209. Each of the two limiting plates 204 is fixedly connected to a U-shaped round rod 2016 on the side away from each other. The two guide plates 209 are movably sleeved on the outside of the two U-shaped round rods 2016 respectively. The top of the lifting plate 2011 is symmetrically fixedly connected to two top blocks 202, each top block 202 is movably sleeved on the outside of the U-shaped round rod 201. A bidirectional screw 2014 is rotatably connected between the two top blocks 202. The outside of the bidirectional screw 2014 is symmetrically threaded with two nuts 2010, and the two nuts 2010 are fixed to the top of the two guide plates 209 respectively.

[0026] In use, the iron core is first placed on top of the placement platform 206 and below the pressure plate 205, with the iron core positioned between the two limiting plates 204. Then, the cylinder 2012 is activated, causing the lifting plate 2011 to slide downwards along the U-shaped round rod 201. At the same time, the pressure plate 205 descends until it clamps the iron core from both above and below. Then, the bidirectional lead screw 2014 is rotated, causing the two guide plates 209 to slide along the two guide rods 203 respectively through the two lead nuts 2010. Then, the two limiting plates 204 are driven to slide along the horizontal column 208 respectively through the two U-shaped round rods 2016. At the same time, the two support wheels 207 roll on the bracket 1 to ensure the stability of the limiting plates 204 when they move, thereby achieving the left and right clamping of the iron core. Finally, the iron core is clamped.

[0027] Specifically, by Figure 4-5As shown, a support plate 2020 is fixedly installed on the outer side of the pressure plate 205, a drive motor 2021 is fixedly installed on the top of the support plate 2020, a drive shaft 2019 is fixedly connected to the drive motor 2021, a drive bevel gear 2018 is fixedly installed on the top of the drive shaft 2019, a driven bevel gear 2017 is fixedly installed on the outer side of the double-acting screw 2014, the driven bevel gear 2017 is meshed with the drive bevel gear 2018, and the drive shaft 2019 passes through the lifting plate 2011 and is rotatably connected to the lifting plate 2011.

[0028] In use, the drive motor 2021 is started first, which drives the drive shaft 2019 to rotate and drives the drive bevel gear 2018 to rotate. Since the drive bevel gear 2018 is meshed with the driven bevel gear 2017, the rotation of the bidirectional lead screw 2014 is realized, and finally the two limit plates 204 move closer to each other to clamp the iron core from the left and right.

Claims

1. A power transformer core clamping device comprising a support (1), characterized in that: The support (1) is provided with a clamping mechanism (2); The clamping mechanism (2) comprises a U-shaped round rod I (201) fixed on the top of the support (1), the outer side of the U-shaped round rod I (201) movably sleeved with a lifting plate (2011), the bottom of the lifting plate (2011) fixedly connected with a pressing plate (205), the inner side of the support (1) fixedly connected with a horizontal column (208), the outer side of the horizontal column (208) movably sleeved with two limiting plates (204), the bottom of each of the two limiting plates (204) provided with a supporting wheel (207) abutting against the support (1), the inner side of the support (1) fixedly installed with a placing table (206) between the two limiting plates (204), the placing table (206) fixedly sleeved on the outer middle part of the horizontal column (208), and the placing table (206) located directly below the pressing plate (205).

2. A power transformer core clamping device according to claim 1, characterized in that: The outer middle part of the U-shaped round rod I (201) is fixedly sleeved with a sleeve block (2013), and the bottom of the sleeve block (2013) and the top of the lifting plate (2011) are fixedly installed with a gas cylinder (2012).

3. A power transformer core clamping device according to claim 1, characterized in that: The lifting plate (2011) is symmetrically provided with two guide grooves (2015), and the two guide grooves (2015) are fixedly connected with guide rods (203).

4. A power transformer core clamping device according to claim 1, characterized in that: The two limiting plates (204) are fixedly connected with U-shaped round rods II (2016) on the sides away from each other, and the two guide plates (209) are movably sleeved on the outer sides of the two U-shaped round rods II (2016).

5. A power transformer core clamping device according to claim 1, characterized in that: The top of the lifting plate (2011) is symmetrically fixedly connected with two top blocks (202), the two top blocks (202) are movably sleeved on the outer sides of the U-shaped round rod I (201), and the two top blocks (202) are rotatably connected with a bidirectional screw rod (2014), the outer sides of the bidirectional screw rod (2014) are symmetrically screw-connected with two nut blocks (2010), and the two nut blocks (2010) are fixedly connected to the tops of the two guide plates (209).

6. A power transformer core clamping device according to claim 1, characterized in that: The outer side of the pressing plate (205) is fixedly installed with a supporting plate (2020), the top of the supporting plate (2020) is fixedly installed with a driving motor (2021), the driving motor (2021) is fixedly connected with a driving shaft (2019), the top end of the driving shaft (2019) is fixedly installed with a driving bevel gear (2018), the outer side of the bidirectional screw rod (2014) is fixedly installed with a driven bevel gear (2017), the driven bevel gear (2017) is meshingly connected with the driving bevel gear (2018), and the driving shaft (2019) penetrates through the lifting plate (2011) and is rotatably connected with the lifting plate (2011).

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