A pressurizing device for producing transformer insulation materials

Abstract

This utility model provides a pressurizing device for the production of transformer insulation materials, comprising: a pressurizing assembly, which includes a main pressurizing component, an auxiliary pressurizing component, an upper pressure plate, a flexible plate, a pressure compensation valve, a proportional valve group, and a controller for controlling the main pressurizing component and the auxiliary pressurizing component. Compared with the prior art, this utility model has the following beneficial effects: by adding a pressurizing assembly and a lower mold, the main pressurizing component provides large stroke control, and four sets of auxiliary pressurizing components are distributed at multiple points to provide small stroke pressurization. The pressure compensation valve and the proportional valve group complete the synchronous control of multiple sets of auxiliary pressurizing components, and the flexible pad directly holds the insulation material to achieve buffer pressurization, thereby improving the pressurization quality of production. By adding a pressurizing assembly and a lower mold, a standard connecting plate is embedded in a standard connecting groove, and the abutment telescopic rod drives the abutment plate to engage with the abutment groove, thereby facilitating the assembly and disassembly of the lower mold.

Description

Technical Field

[0001] This utility model belongs to the field of transformer insulation material production technology, and specifically relates to a pressurizing device for transformer insulation material production. Background Technology

[0002] Transformer insulation materials play a crucial role in power equipment, ensuring safe operation and extending service life. They can be categorized into solid and liquid insulation materials based on their application. Solid insulation materials include, but are not limited to, insulating paper / paperboard, fiberglass, epoxy resin, mica products, and ceramics. One step in the production of fixed insulation materials such as insulating boards is pressure bonding. In existing technologies, the power source for increasing pressure is often a single mechanical screw, hydraulic cylinder, electric, or pneumatic structure, driving a pressure plate and mold to jointly apply pressure to different materials. This results in the central part being the main pressure source, easily leading to large pressure differences in different areas of the material, affecting performance consistency. This can cause a decrease in the quality and precision of the pressurized solid insulation material.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pressurizing device for the production of transformer insulation materials, and to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a pressurizing device for producing transformer insulation materials, comprising: a pressurizing assembly, wherein the pressurizing assembly includes a main pressurizing component, an auxiliary pressurizing component, an upper pressure plate, a flexible plate, a pressure compensation valve, a proportional valve group, and a controller for controlling the main pressurizing component and the auxiliary pressurizing component. A pressurizing intermediate plate is fixedly connected below the main pressurizing component. A set of auxiliary pressurizing components for achieving short-stroke pressurization is fixedly connected at each of the four corners of the lower surface of the pressurizing intermediate plate. An upper pressure plate is fixedly connected below the auxiliary pressurizing component. A flexible plate for pressurization buffer is fixedly connected below the upper pressure plate. A lower mold is installed below the flexible plate. An air inlet pipe is fixedly connected to the outside of each set of auxiliary pressurizing components. A pressure compensation valve is installed in the middle section of the air inlet pipe. A proportional valve group is fixedly connected to the upper end of the air inlet pipe.

[0006] In a preferred embodiment, the main pressurizing component is a hydraulic telescopic cylinder for achieving large stroke control, and the auxiliary pressurizing component is a pneumatic cylinder for achieving fine adjustment and auxiliary pressurization.

[0007] In a preferred embodiment, the proportional valve group is connected to the main intake pipe, and the flexible plate is made of high-temperature resistant rubber material. During pressurization, the main pressurizing component controls the large stroke, and the four auxiliary pressurizing components drive the upper pressure plate to move at multiple points. During pressurization, the flexible plate directly contacts the upper pressure plate to provide pressurization slow release.

[0008] In a preferred embodiment, the pressurizing assembly further includes a pressurizing frame. The upper surface of the pressurizing frame, in the area where the main pressurizing component is mounted, has a collecting groove for collecting leaked hydraulic oil. The upper surface of the collecting groove has an oil guide hole extending outward from the left end.

[0009] In a preferred embodiment, the upper surface of the pressurizing intermediate plate is also provided with a second collection groove for collecting leaked hydraulic oil. The upper surface of the second collection groove is vertically penetrated to the left front to form a second oil guide hole. A collection conduit is fixedly connected below the second oil guide hole. The main pressurizing component is a hydraulic cylinder, which is controlled by hydraulic oil. There is a pipeline connection part at the outer end of the hydraulic cylinder, which is prone to leakage problems. The leaked hydraulic oil is collected through the first collection groove and the second collection groove, and then collected centrally through the collection conduit.

[0010] In a preferred embodiment, a pressure base plate is fixedly connected below the pressure frame. The upper surface of the pressure base plate is provided with a standard connecting groove for easy disassembly and assembly of the lower mold. A set of hidden grooves is provided on the inner sides of both the left and right ends of the standard connecting groove.

[0011] In a preferred embodiment, a set of abutment plates is movably arranged inside the hidden groove, and an abutment telescopic rod is fixedly connected to one end of the abutment plate away from the center of the standard connecting groove. The lower mold includes a standard connecting plate and an abutment groove.

[0012] In a preferred embodiment, a set of abutment grooves are provided on both the left and right sides of the standard connecting plate. A mold body is fixedly connected above the standard connecting plate. The standard connecting plate and the standard connecting groove are interlocked. The abutment plate and the abutment groove are interlocked. The standard connecting plate is embedded into the standard connecting groove, and the abutment telescopic rod drives the abutment plate and the abutment groove to interlock, thereby facilitating the assembly and disassembly of the lower mold.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are:

[0014] 1. By adding pressurizing components and a lower mold, the main pressurizing component provides large stroke control, and the four auxiliary pressurizing components are distributed at multiple points to provide small stroke pressurization. The pressure compensation valve and proportional valve group complete the synchronous control of multiple auxiliary pressurizing components, and the flexible pad is directly pressed with the insulating material to achieve buffer pressurization, thereby improving the pressurization quality of production.

[0015] 2. By adding a pressure component and a lower mold, a standard connecting plate is embedded into a standard connecting groove, and the abutment telescopic rod drives the abutment plate and the abutment groove to fit together, thereby facilitating the assembly and disassembly of the lower mold. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a pressurizing device for producing transformer insulation materials according to this utility model.

[0018] Figure 2 This is a schematic diagram of the pressurizing component in a pressurizing device for producing transformer insulation materials according to this utility model.

[0019] Figure 3 This is a partial cross-sectional schematic diagram of the pressurizing component in a pressurizing device for producing transformer insulation materials according to this utility model.

[0020] Figure 4 This is a schematic diagram of the lower mold in a pressurizing device for producing transformer insulation materials according to this utility model.

[0021] In the diagram, 100-pressurization component, 101-pressurization base plate, 102-standard connecting groove, 103-abutment plate, 104-abutment telescopic rod, 105-pressurization frame, 106-main pressurization component, 107-pressurization intermediate plate, 108-auxiliary pressurization component, 109-intake pipe, 110-pressure compensation valve, 111-proportional valve group, 112-main intake pipe, 113-collection groove one, 114-oil guide hole one, 115-collection groove two, 116-oil guide hole two, 117-collection conduit, 118-upper pressure plate, 119-flexible plate;

[0022] 200-Lower mold, 201-Standard connecting plate, 202-Abutment groove, 203-Mold body. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 As the first embodiment of this utility model:

[0025] A pressurizing device for producing transformer insulation materials includes: a pressurizing assembly 100, which includes a main pressurizing component 106, an auxiliary pressurizing component 108, an upper pressure plate 118, a flexible plate 119, a pressure compensation valve 110, a proportional valve group 111, and a controller for controlling the main pressurizing component 106 and the auxiliary pressurizing component 108.

[0026] A pressure intermediate plate 107 is fixedly connected below the main pressure component 106. A set of auxiliary pressure components 108 for achieving small-stroke pressure is fixedly connected at the four corners of the lower surface of the pressure intermediate plate 107. An upper pressure plate 118 is fixedly connected below the auxiliary pressure component 108. A flexible plate 119 for pressure buffering is fixedly connected below the upper pressure plate 118.

[0027] A lower mold 200 is installed below the flexible plate 119. Each set of auxiliary pressurizing components 108 is fixedly connected to an air inlet pipe 109 on the outside. A set of pressure compensation valves 110 is installed in the middle section of the air inlet pipe 109. A proportional valve group 111 is fixedly connected to the upper end of the air inlet pipe 109.

[0028] The main pressurizing component 106 is a hydraulic telescopic cylinder used to achieve large stroke control, and the auxiliary pressurizing component 108 is a pneumatic cylinder used to achieve fine adjustment and auxiliary pressurization.

[0029] The proportional valve assembly 111 is connected to the main intake pipe 112. The flexible plate 119 is made of high-temperature resistant rubber material. During pressurization, it is controlled by the main pressurizing component 106 to achieve a large stroke and causes the four auxiliary pressurizing components 108 to move the upper pressure plate 118 at multiple points. During pressurization, the flexible plate 119 directly contacts the upper pressure plate to provide pressurization slow release.

[0030] The pressurizing assembly 100 also includes a pressurizing frame 105. The area on the upper surface of the pressurizing frame 105 where the main pressurizing component 106 is mounted is provided with a collection groove 113 for collecting leaked hydraulic oil. The left end of the upper surface of the collection groove 113 is provided with an oil guide hole 114 that is connected to the outside.

[0031] The upper surface of the pressurizing intermediate plate 107 is also provided with a second collection groove 115 for collecting leaked hydraulic oil. A second oil guide hole 116 is formed vertically through the upper surface of the second collection groove 115 on the left front. A collection conduit 117 is fixedly connected below the second oil guide hole 116. The main pressurizing component 106 is a hydraulic cylinder, which is controlled by hydraulic oil. There is a pipeline connection part at the outer end of the hydraulic cylinder, which is prone to leakage problems. The leaked hydraulic oil is collected through the first collection groove 113 and the second collection groove 115, and is collected centrally through the collection conduit 117.

[0032] Specifically, in the production of transformer insulation board materials, the main pressurizing component 106 controls the large stroke, and the four auxiliary pressurizing components 108 drive the upper pressure plate 118 to move at multiple points. All four auxiliary pressurizing components 108 are cylinders of the same specification. The pressure compensation valve 110 and the proportional valve group 111 realize the synchronous control of the four auxiliary pressurizing components 108. During the pressurization process, the flexible plate 119 directly contacts to provide pressure relief, thereby improving the production quality of the insulation board under pressure.

[0033] Secondly, the main pressurizing component 106 is a hydraulic cylinder, which is controlled by hydraulic oil. There is a pipeline connection at the outer end of the hydraulic cylinder, which is prone to leakage problems. The leaked hydraulic oil is collected through the first collection tank 113 and the second collection tank 115, and then collected centrally through the collection conduit 117, which can prevent hydraulic oil leakage from contaminating the production of the insulation board.

[0034] Please see Figures 1-4 As a second embodiment of this utility model:

[0035] A pressure base plate 101 is fixedly connected to the lower part of the pressure frame 105. The upper surface of the pressure base plate 101 is provided with a standard connecting groove 102 for easy disassembly and assembly of the lower mold 200. A set of hidden grooves are provided on the inner sides of both the left and right ends of the standard connecting groove 102.

[0036] A set of abutment plates 103 are movably arranged inside the hidden groove. An abutment telescopic rod 104 is fixedly connected to one end of the abutment plate 103 away from the center of the standard connecting groove 102. The lower mold 200 includes a standard connecting plate 201 and an abutment groove 202.

[0037] A set of abutment grooves 202 are provided on both the left and right sides of the standard connecting plate 201. A mold body 203 is fixedly connected to the top of the standard connecting plate 201. The standard connecting plate 201 and the standard connecting groove 102 are fitted together, and the abutment plate 103 and the abutment groove 202 are fitted together. The standard connecting plate 201 is embedded into the standard connecting groove 102, and the abutment telescopic rod 104 drives the abutment plate 103 and the abutment groove 202 to fit together.

[0038] Based on the first embodiment described above, further, during the installation of the lower mold 200, the standard connecting plate 201 is first inserted into the standard connecting groove 102, and the abutting telescopic rod 104 drives the abutting plate 103 to engage with the abutting groove 202. In the disassembly of the lower mold 200, the opposite operation described above can be performed to achieve convenient disassembly, thereby facilitating the assembly and disassembly of the lower mold 200.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressurizing device for transformer insulation material production, comprising: The pressurizing assembly (100) is characterized in that: the pressurizing assembly (100) includes a main pressurizing component (106), an auxiliary pressurizing component (108), an upper pressure plate (118), a flexible plate (119), a pressure compensation valve (110), a proportional valve group (111), and a controller for controlling the main pressurizing component (106) and the auxiliary pressurizing component (108); A pressure intermediate plate (107) is fixedly connected below the main pressure component (106). A set of auxiliary pressure components (108) for achieving small-stroke pressure is fixedly connected at the four corners of the lower surface of the pressure intermediate plate (107). An upper pressure plate (118) is fixedly connected below the auxiliary pressure component (108). A flexible plate (119) for pressure buffering is fixedly connected below the upper pressure plate (118). A lower mold (200) is installed below the flexible plate (119). Each set of auxiliary pressurizing components (108) is fixedly connected to an air inlet pipe (109) on its outer side. A pressure compensation valve (110) is installed in the middle section of the air inlet pipe (109). A proportional valve group (111) is fixedly connected to the upper end of the air inlet pipe (109).

2. The pressurizing device for producing transformer insulation materials as described in claim 1, characterized in that: The main pressurizing component (106) is a hydraulic telescopic cylinder for achieving large stroke control, and the auxiliary pressurizing component (108) is a cylinder for achieving fine adjustment and auxiliary pressurization.

3. The pressurizing device for producing transformer insulation materials as described in claim 2, characterized in that: The proportional valve assembly (111) is connected to the main intake pipe (112), and the flexible plate (119) is made of high-temperature resistant rubber material.

4. The pressurizing device for producing transformer insulation materials as described in claim 1, characterized in that: The pressurizing assembly (100) also includes a pressurizing frame (105). The upper surface of the pressurizing frame (105) is provided with a collection groove (113) for collecting leaked hydraulic oil in the area where the main pressurizing component (106) is installed. The upper surface of the collection groove (113) is provided with an oil guide hole (114) extending outward from the left end.

5. The pressurizing device for producing transformer insulation materials as described in claim 4, characterized in that: The upper surface of the pressurized intermediate plate (107) is also provided with a second collection groove (115) for collecting leaked hydraulic oil. The upper surface of the second collection groove (115) is vertically penetrated to the left front to form a second oil guide hole (116). A collection conduit (117) is fixedly connected below the second oil guide hole (116).

6. The pressurizing device for producing transformer insulation materials as described in claim 4, characterized in that: A pressure base plate (101) is fixedly connected below the pressure frame (105). A standard connecting groove (102) for convenient disassembly and assembly of the lower mold (200) is provided on the upper surface of the pressure base plate (101). A set of hidden grooves is provided on the inner sides of both the left and right ends of the standard connecting groove (102).

7. The pressurizing device for producing transformer insulation materials as described in claim 6, characterized in that: A set of abutment plates (103) are movably arranged inside the hidden groove. An abutment telescopic rod (104) is fixedly connected to one end of the abutment plate (103) away from the center of the standard connecting groove (102). The lower mold (200) includes a standard connecting plate (201) and an abutment groove (202).

8. The pressurizing device for producing transformer insulation materials as described in claim 7, characterized in that: The standard connecting plate (201) has a set of abutment grooves (202) on both its left and right sides. A mold body (203) is fixedly connected above the standard connecting plate (201). The standard connecting plate (201) and the standard connecting groove (102) are fitted together, and the abutment plate (103) and the abutment groove (202) are fitted together.

Images