Hydraulic coil press-fitting device
By introducing multiple pressure plates and height positioning support columns into the coil pressing device, combined with the welding of jack beams, stable pressing of multiple coils is achieved. This solves the problems of coil overpressure damage and uneven stress deformation of pressure plates in the existing coil pressing device, thus improving the leveling effect and work efficiency.
Patent Information
- Application Number
- CN202520149645.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing coil pressing devices are prone to coil overpressure damage and uneven stress deformation of the pressing plate during the pressing process, especially when pressing multiple coils, the leveling effect is poor.
Multiple parallel pressure plates and height-positioning support columns are used, combined with the jack beam welded together. The first screw connects to the bottom pressure plate to distribute the force and prevent localized stress. The height-positioning support columns are used to adjust the interval distance to avoid overvoltage damage to the coil and to prevent the pressure plates from deforming.
It achieves stable pressing of multiple coils, avoids coil overvoltage damage, ensures uniform force on the pressure plate, and improves leveling effect and work efficiency.
Smart Images

Figure CN223842763U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coil pressing devices, specifically a coil hydraulic pressing device. Background Technology
[0002] A transformer coil is a type of coil that is required for a transformer to operate. There are many types and shapes of coils, among which flat elliptical coils are pressed together during the manufacturing process to ensure their flatness.
[0003] The existing coil pressing mainly uses a pressing device to place the coil in the middle of the pressing plate and then press the pressing plate tightly. Compared with manual pressing, it can achieve a better leveling effect.
[0004] However, existing pressing devices may over-pressurize and damage the coil if the pressure is not properly controlled during the pressing process. Uneven force on the pressing plate may also cause the pressing plate to deform. In particular, when pressing multiple coils at the same time, uneven force on the pressing plate will not only cause the pressing plate to deform, but also affect the leveling effect. Utility Model Content
[0005] The present invention aims to provide a coil hydraulic pressing device that can press multiple coils, avoid overpressure damage to the coils, distribute force evenly, prevent deformation of the pressing plate, and improve the leveling effect.
[0006] This utility model provides the following basic solution: a coil hydraulic pressing device, comprising: several pressing plates;
[0007] The pressure plates are arranged in parallel relative to each other, and several height positioning support columns are arranged between the two pressure plates. The bottom surface of the height positioning support column contacts the bottom pressure plate, and the top surface contacts the top pressure plate. The height positioning support column includes a second screw and a positioning seat. The positioning seat is provided with a threaded through hole, and the two ends of the second screw pass through the threaded through hole of the positioning seat and are connected to the positioning seat.
[0008] The pressure plate has a first mounting position on its side;
[0009] The top pressure plate is equipped with a jack beam welded on it to press the coil placed between the pressure plates;
[0010] The first mounting position is provided with a first screw rod, which is connected to the first mounting position of the bottom pressure plate. The screw rod passes through all the pressure plates sequentially from the first mounting position of the bottom pressure plate and is welded to the jack beam.
[0011] Furthermore, the first mounting position is located on the opposite sides of the pressure plate; wherein the first mounting position is a through hole or a groove.
[0012] Furthermore, the jack beam welding assembly includes: a beam frame plate;
[0013] Two beam slabs are arranged opposite each other, with a channel steel in between;
[0014] A support lug is provided in the middle of the beam frame plate, and a through hole is provided on the support lug. A third screw is provided to pass through the through hole of two beam frame plates that are set opposite each other; the through hole is provided with a thread that matches the thread of the third screw.
[0015] Two beam frame plates are arranged opposite each other and have a first perforated plate on their outer sides and a second perforated plate on their bottom surfaces. A reinforcing rib is provided between the second perforated plate and the beam frame plate. A second mounting position is provided on the first perforated plate for installing the first screw.
[0016] The beam frame is a portal-shaped plate, and several jacks are evenly distributed on the concave bottom surface of the two opposing beam frame plates.
[0017] Furthermore, the first screw rod on the first mounting position and the second mounting position is fitted with a washer and threaded with a nut, and the first screw rod is fixed by the washer and the nut; the first mounting position of the pressure plate at the bottom is provided with a positioning screw plate connected to the first screw rod, and together with the nut located at the first mounting position, the first screw rod is tightened.
[0018] Furthermore, the two opposing beam frames have a top plate on the concave bottom surface of the portal frame, and several jacks are installed on the bottom surface of the top plate.
[0019] The beneficial effects of this solution are as follows: Multiple pressure plates are set up according to requirements, arranged in parallel. Coils are placed in the middle of the pressure plates, with multiple coils per layer. A jack beam is welded onto the top pressure plate to press the coils between the pressure plates. Multiple layers can be pressed simultaneously, improving efficiency. Furthermore, a first mounting position is provided on the side of the pressure plate, containing a first screw. This first screw connects to the first mounting position on the bottom pressure plate, passing upwards through all the pressure plates and welding onto the jack beam. This ensures stable pressing, distributes the force of the jack's pressing force, and prevents deformation of the pressure plates due to localized stress. The pressure plates are evenly stressed, preventing deformation. Several height-positioning support columns are installed between the two pressure plates, with their bottom surfaces contacting the bottom pressure plate and their top surfaces contacting the top pressure plate. Each height-positioning support column includes a second screw and a positioning seat. The positioning seat has threaded through holes, and the two ends of the second screw pass through these holes, connecting to the positioning seat. This allows the height of the positioning seat to be adjusted according to the pressing requirements, thereby adjusting the distance between the two pressure plates and regulating the coil pressing height. This provides support while also protecting the coil from overpressure, preventing excessive pressure and damage.
[0020] In summary, this solution can perform multiple coil pressing and avoid overpressure damage to the coils. The device is subjected to uniform force and can prevent deformation of the pressure plate, thereby improving the leveling effect. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the coil hydraulic pressing device of this utility model;
[0022] Figure 2 This is a side view of an embodiment of the coil hydraulic pressing device of this utility model;
[0023] Figure 3 for Figure 2 A partial sectional view along the center AA;
[0024] Figure 4 This is a cross-sectional view of the height positioning support column in an embodiment of the coil hydraulic pressing device of this utility model;
[0025] Figure 5 This is a schematic diagram of the height positioning support column in an embodiment of the coil hydraulic pressing device of this utility model;
[0026] Figure 6 This is a schematic diagram of the welding structure of the jack beam in an embodiment of the coil hydraulic pressing device of this utility model. Detailed Implementation
[0027] The following detailed description illustrates the specific implementation method:
[0028] The reference numerals in the accompanying drawings include: pressure plate 1, positioning screw plate 2, coil 3, height positioning support column 4, washer 5, nut 6, first screw 7, jack beam welding assembly 8, positioning seat 401, second screw 402, beam frame plate 801, first channel steel 802, second channel steel 803, first hole plate 804, third screw 805, top plate 806, jack 807, reinforcing rib 808, and second hole plate 809.
[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0030] In the description of this specification, it should be understood that the directional terms such as "upper," "lower," "left," and "right" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that one element is connected to another element "upper," "lower," "left," or "right," it can be directly connected to the other element "upper," "lower," "left," or "right," or indirectly connected to the other element "upper," "lower," "left," or "right" through an intermediate element.
[0031] The basic implementation examples are as follows: Figure 1 As shown: a coil hydraulic pressing device, including: several pressing plates 1; wherein the shape of the pressing plates 1 is set according to requirements, and in this embodiment the pressing plates 1 are set as rectangular pressing plates 1;
[0032] like Figure 2 and Figure 3 As shown, the pressure plates 1 are arranged relatively parallel to each other, and a height positioning support column 4 is provided between the two pressure plates 1. The bottom surface of the height positioning support column 4 contacts the bottom pressure plate 1, and the top surface contacts the top pressure plate 1; as shown Figure 4 and 5 As shown, the height positioning support column 4 includes: a second screw 402 and a positioning seat 401;
[0033] The positioning seat 401 is provided with threaded through holes. The two ends of the second screw 402 are respectively inserted into the threaded through holes of the positioning seat 401 and connected to the positioning seat 401. In actual use, the positioning seats 401 at both ends of the second screw 402 can be rotated to adjust the height of the height positioning support column 4, so that it can be used for pressing different coils 3.
[0034] The pressure plate 1 has a first mounting position on its side; in this embodiment, the first mounting position is located on the side of the wide side of the pressure plate 1; wherein the first mounting position can be a through hole or a groove, and in this embodiment, the first mounting position is a groove located in the middle of the side of the wide side of the pressure plate 1.
[0035] A jack beam welding device 8 is provided on the top pressure plate 1 to press the coil 3 placed between the pressure plates 1; a first screw 7 is provided in the first mounting position, the first screw 7 is connected to the first mounting position of the bottom pressure plate 1, passes through all the pressure plates 1 sequentially from the first mounting position of the bottom pressure plate 1, and is connected to the jack beam welding device 8.
[0036] like Figure 6 As shown, the jack beam welding assembly 8 includes: beam frame plate 801;
[0037] Two beam frame plates 801 are arranged opposite each other, with a channel steel in the middle; in this embodiment, the channel steel is welded, with a first channel steel 802 in the middle and second channel steels 803 on both sides.
[0038] A support lug is provided in the middle of the beam frame plate 801, and a through hole is provided on the support lug. A third screw 805 is provided to pass through the through hole of two beam frame plates 801 that are set opposite each other; the through hole is provided with a thread that matches the thread of the third screw 805.
[0039] Two beam frame plates 801 arranged opposite each other are provided with a first hole plate 804 on their outer side and a second hole plate 809 on their bottom surface, and a reinforcing rib 808 is provided between the second hole plate 809 and the beam frame plate 801; a second mounting position is provided on the first hole plate 804 for installing the first screw 7.
[0040] The first screw 7 is fitted with a washer 5 at the first mounting position and the second mounting position, and is threadedly connected to a nut 6. The first screw 7 is fixed by the washer 5 and the nut 6. The first mounting position of the pressure plate 1 at the bottom is provided with a positioning screw plate 2, which is connected to the first screw 7 and together with the nut 6 located at the first mounting position, it tightens the first screw 7.
[0041] The beam frame plate 801 is a portal-shaped plate. Two beam frame plates 801 arranged opposite each other have a number of jacks 807 on the concave bottom surface of the portal shape; in this embodiment, there are two jacks 807. Specifically, the two beam frame plates 801 arranged opposite each other have a top plate 806 on the concave bottom surface of the portal shape, and a number of jacks 807 are arranged on the bottom surface of the top plate 806; among them, the jacks 807 are hydraulic jacks 807, which saves more time and effort.
[0042] Multiple pressure plates 1 are set up according to requirements, and the pressure plates 1 are arranged in parallel. The coil 3 is placed in the middle of the pressure plate 1, and multiple coils 3 can be placed in one layer. The jack beam 8 is welded on the top pressure plate 1 to press the coils 3 placed between the pressure plates 1. Multiple layers are pressed at the same time to improve efficiency. The first mounting position is set on the side of the pressure plate 1, and the first mounting position is equipped with a first screw 7. The first screw 7 is connected to the first mounting position of the bottom pressure plate 1. It passes through all the pressure plates 1 from the first mounting position of the bottom pressure plate 1 and is connected to the jack beam 8 welded on, ensuring the stability of the pressing and distributing the force of the jack 807 pressing part, avoiding local stress that could cause the pressure plate 1 to deform, and ensuring that the pressure plate 1 is evenly stressed to prevent pressure. Plate 1 deforms; several height positioning support columns 4 are provided between the two pressure plates 1, the bottom surface of the height positioning support column 4 contacts the bottom pressure plate 1, and the top surface contacts the top pressure plate 1; the height positioning support column 4 includes: a second screw 402 and a positioning seat 401; the positioning seat 401 is provided with a threaded through hole, and the two ends of the second screw 402 are respectively inserted into a threaded through hole of the positioning seat 401 and connected to the positioning seat 401, so as to adjust the height of the positioning seat 401 according to the pressing requirements, thereby adjusting the interval distance between the two pressure plates 1 and adjusting the pressing height of the coil 3, which not only provides support, but also provides overpressure protection for the coil 3 to prevent excessive pressure and damage to the coil 3.
[0043] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A coil hydraulic pressing device, characterized in that, include: Several pressure plates; The pressure plates are arranged relatively parallel to each other, and several height positioning support columns are set between the two pressure plates. The bottom surface of the height positioning support columns contacts the bottom pressure plate, and the top surface contacts the top pressure plate. The height positioning support column includes: a second screw and a positioning seat; the positioning seat is provided with a threaded through hole, and the two ends of the second screw are respectively inserted into the threaded through hole of the positioning seat and connected to the positioning seat; The pressure plate has a first mounting position on its side; The top pressure plate is equipped with a jack beam welded on it to press the coil placed between the pressure plates; The first mounting position is provided with a first screw rod, which is connected to the first mounting position of the bottom pressure plate. The screw rod passes through all the pressure plates sequentially from the first mounting position of the bottom pressure plate and is welded to the jack beam.
2. The coil hydraulic pressing device according to claim 1, characterized in that, The first mounting position is located on the opposite sides of the pressure plate; wherein the first mounting position is a through hole or a groove.
3. The coil hydraulic pressing device according to claim 2, characterized in that, The jack beam welding assembly includes: beam frame plate; Two beam slabs are arranged opposite each other, with a channel steel in between; A support lug is provided in the middle of the beam frame plate, and a through hole is provided on the support lug. A third screw is provided to pass through the through hole of two beam frame plates that are set opposite each other; the through hole is provided with a thread that matches the thread of the third screw. Two beam frame plates are arranged opposite each other and have a first perforated plate on their outer sides and a second perforated plate on their bottom surfaces. A reinforcing rib is provided between the second perforated plate and the beam frame plate. A second mounting position is provided on the first perforated plate for installing the first screw. The beam frame is a portal-shaped plate, and several jacks are evenly distributed on the concave bottom surface of the two opposing beam frame plates.
4. The coil hydraulic pressing device according to claim 1, characterized in that, The first screw rod is fitted with a washer at the first mounting position and the second mounting position, and a nut is threadedly connected to it. The first screw rod is fixed by the washer and the nut. The first mounting position of the pressure plate at the bottom is provided with a positioning screw plate that is connected to the first screw rod and together with the nut located at the first mounting position, it tightens the first screw rod.
5. The coil hydraulic pressing device according to claim 1, characterized in that, Two opposing beam slabs have a top plate on the concave bottom surface of the portal frame, and several jacks are installed on the bottom surface of the top plate.