A fixing device for casting current transformer
By designing a fixing device including a frame, a load-bearing mechanism and a pressing mechanism, the problem of position disorder caused by wire movement during the casting process and loose wire joints caused by equipment vibration is solved, and the stable limit of the current transformer material and the fixed compaction of the wire are achieved, ensuring the stable operation of the equipment.
Patent Information
- Application Number
- CN202411688463.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2044-11-25
AI Technical Summary
During the pouring process of existing current transformers, the conductors are prone to be disorganized due to pulling and movement, and the conductor joints are loose or even broken during vibration during the equipment operation, which affects the use.
A fixing device including a frame, a load bearing mechanism and a pressing mechanism is designed. The bearing mechanism initially limits the current transformer material through a cylinder and a support connecting rod, and the pressing mechanism uses cylinders and rectangular blocks to fix and compact the conductors to prevent loosening and breakage.
It effectively prevents the skew and offset of the current transformer material during the casting process, ensures the fixed and stable wires, and avoids the loose joints and wire breakage caused by vibration.
Smart Images
Figure CN119480405B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of current transformers, in particular to a fixing device for casting current transformers. Background Art
[0002] The current transformer is an instrument that converts the primary side large current into the secondary side small current for measurement based on the principle of electromagnetic induction. The current transformer is composed of a closed iron core and winding. Its primary side winding has few turns and is connected in series in the circuit of the current to be measured, playing the role of current conversion and electrical isolation. The cast current transformer uses epoxy resin casting to fix the iron core and coil in the transformer. The structure of the current transformer is to set the secondary winding in a flame-retardant plastic shell with a through hole in the center, and cast it with epoxy resin.
[0003] At present, when the current transformer is cast, the wire is easily moved due to being pulled, causing the overall position of the current transformer to be disordered, thereby affecting the casting of the current transformer as a whole. At the same time, as the equipment is running, vibration is inevitable, and the wire joints are prone to loosening. In severe cases, the wires may break, affecting subsequent use. Summary of the invention
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fixing device for casting current transformer, comprising:
[0005] A frame, a rectangular sliding sleeve is installed in the middle of the top of the frame, and a cylinder is fixedly installed at the bottom of the frame and close to the rectangular sliding sleeve;
[0006] A bearing mechanism, which is used to place the current transformer material to be cast and to limit the position, and is installed on the side of the outer side of the frame;
[0007] The bearing mechanism comprises a shell, the circular rear surface of the outer side of the shell is fixedly installed at the side of the outer side of the frame, a cylinder is fixedly installed in the middle of the inner cavity of the shell, a through hole is opened in the middle of the outer circular surface of the cylinder, a supporting connecting rod is slidably installed at the notch at the bottom of the inner cavity of the shell, a wire positioning plate is fixedly installed at the top of the supporting connecting rod, a supporting elastic block is fixedly installed at the bottom of the supporting connecting rod, and the supporting elastic block is installed inside the shell, and the current transformer material to be cast is placed inside the shell, and the cylinder is used to pass through the circular hole in the middle of the current transformer material, so that the current transformer material can be placed between the shell and the cylinder, and the current transformer material can be initially limited, which is not easy to be skewed and offset, and is convenient for subsequent fixed installation;
[0008] A pressing mechanism, which is used to position the current transformer material and press the wire, and the pressing mechanism is installed on the top of the frame;
[0009] Among them, the pressing mechanism includes an inclined connecting beam, the middle of the bottom of the inclined connecting beam is fixedly installed with the telescopic end of the cylinder, the bottom end of the inclined connecting beam is fixedly installed with a square guide column, the square guide column is slidably installed between the rectangular sliding sleeve, the top of the inclined connecting beam is fixedly installed with a supporting beam, both ends of the supporting beam are fixedly installed with rectangular pressure blocks, the rectangular pressure block is installed directly above the wire positioning plate, and a card slot is opened on the side of the bottom of the rectangular pressure block.
[0010] By utilizing the extension and contraction of the telescopic end of the cylinder and the connection of the inclined connecting beam, the supporting crossbeam is driven to move up and down, so that the rectangular pressing block is driven to move together, so that the rectangular pressing block can be matched and separated with the notch on the outer side of the shell, promoting the mutual coordination between the structures, which is helpful for batch casting of current transformers;
[0011] At the same time, it is convenient to expand between structures and helps to take out the cast current transformer.
[0012] Preferably, there are two wire positioning plates, and both of them are arc-shaped, the openings of the wire positioning plates face upwards, so as to facilitate clamping the wire inside the wire positioning plates, and the through holes are evenly distributed in the middle of the outer circumference of the cylinder.
[0013] Preferably, the supporting elastic block is hollow, the supporting elastic block is installed directly below the supporting connecting rod, and the material of the supporting elastic block is rubber, so that the supporting elastic block can be elastically deformed after being pressed by the supporting connecting rod.
[0014] Preferably, the square guide column passes through the middle of the rectangular sleeve, and the inclined connecting beam is installed directly above the telescopic end of the cylinder. When the telescopic end of the cylinder drives the supporting beam to move, the square guide column is driven to move, and passes through the center of the rectangular sleeve in combination with the square guide column. Through the cooperation between the square guide column and the rectangular sleeve, the guidance of the square guide column and the connection of the supporting beam make the rectangular pressure block as a whole stable, so that the rectangular pressure block and the notch of the outer shell cooperate smoothly.
[0015] Preferably, there are two rectangular pressing blocks, and the two rectangular pressing blocks are symmetrically installed along the supporting crossbeam, and the position of the card slot corresponds to the position of the wire positioning plate.
[0016] When the current transformer material is placed in the casing, the contraction of the telescopic end of the cylinder is utilized, and under the connection of the inclined connecting beam and the supporting cross beam, the rectangular pressing block is moved downward, so that the wire on the top of the wire positioning plate can be pressed, and the downward pressure on the wire positioning plate is utilized to make the supporting connecting rod slide downward and squeeze the supporting elastic block, so that the supporting elastic block produces elastic deformation, and combined with the action force and reaction force, the wire is fixed and compacted, and it is not easy to cause the wire connection to break as the equipment is running.
[0017] When the rectangular pressing block moves downward and matches the notch on the outer side of the shell, the current transformer material inside the shell can be blocked, so that the current transformer material is positioned;
[0018] At the same time, the inner cavity of the shell can be sealed, so that the fluid will not flow out when the current transformer material is poured.
[0019] Preferably, an auxiliary component is installed on the outer cylindrical surface of the shell and near the bottom, and the auxiliary component is installed below the frame. The auxiliary component includes a pressure-bearing swing plate, and the outer side of the pressure-bearing swing plate and the outer cylindrical surface of the shell are rotatably installed through a base near the bottom. The pressure-bearing end of the pressure-bearing swing plate extends to the bottom end of the square guide column, and a return spring is fixedly installed between the inclined surface of the outer side of the pressure-bearing swing plate and the outer cylindrical surface of the shell. A strip connecting rod is fixedly installed at the bottom end of the pressure-bearing swing plate, and the bottom end of the strip connecting rod and the bottom of the cylinder are close to each other. A conical bucket is fixedly installed at the position, and a self-centering module is installed in the inner cavity of the cylinder and near the conical bucket. The self-centering module is installed near the through hole. When the square guide column moves downward, the bottom end of the square guide column can be used to contact the compressed end of the compressed swing plate. As the square guide column continues to move downward, a pressing force can be applied to the compressed swing plate, so that the compressed swing plate drives the strip connecting rod to rotate and adjust the angle, and the return spring is stretched, thereby driving the conical bucket to move upward, so that the bottom end of the swing rod is subjected to an upward pushing force.
[0020] Preferably, there are two pressurized swing plates, and the two pressurized swing plates are symmetrically installed along the square guide column, and the square guide column and the strip connecting rod are both installed at an angle.
[0021] When the square guide column moves upward, the pressing force on the compressed swing plate disappears, and under the elastic tension of the reset spring, the compressed swing plate drives the strip connecting rod to rotate in the opposite direction for reset, so that the conical bucket can move downward, and the top force on the bottom end of the swing rod disappears.
[0022] Preferably, the conical bucket is installed directly below the cylinder, and the diameter of the conical bucket gradually decreases from top to bottom. The return spring is arc-shaped, and the circle of the return spring coincides with the rotation point of the bottom end of the compressed swing plate.
[0023] Preferably, the self-centering module includes a swing rod, the outer side of the swing rod and the middle part of the inner wall of the cylinder near the top position are hinged through the base, the top of the swing rod and the position near the through hole are fixedly installed with a bending rod, the top of the bending rod is fixedly installed with a pushing ball, the position of the pushing ball corresponds to the position of the through hole, and an elastic support ring is fixedly installed at the bending part of the outer cylindrical surface of the swing rod. When the conical bucket moves upward, and the diameter of the conical bucket gradually decreases from top to bottom, the swing rod is subjected to an inward driving force, and the bending rod can be driven by the swing rod to rotate and adjust the angle, and the elastic support ring is compressed, so that the pushing ball is embedded in the through hole, and the spherical surface of the pushing ball is fitted with the inner wall of the circular hole in the middle of the current transformer material installed in the shell, and the inside of the current transformer material is affected by the top of multiple pushing balls, and the pushing balls are evenly installed inside the cylinder, so that the current transformer material is automatically centered and eccentricity is not easy to occur, thereby facilitating accurate casting of the current transformer material.
[0024] Preferably, there are three pushing balls, and the three pushing balls are evenly installed inside the cylinder, and the swing rod is evenly installed inside the cylinder, and the bottom end of the swing rod fits with the conical surface inside the conical bucket. As the conical bucket moves downward, the driving force of the conical bucket on the bottom end of the swing rod disappears, and under the elastic force provided by the elastic support ring, the swing rod drives the bending rod to rotate in the opposite direction, so that the spherical surface of the pushing ball is separated from the inner wall of the circular hole in the middle of the current transformer material, so as to facilitate the removal of the cast current transformer.
[0025] The present invention provides a fixing device for a cast current transformer, which has the following beneficial effects:
[0026] 1. The fixing device for casting the current transformer places the current transformer material to be cast inside the shell, and uses a cylinder to pass through the circular hole in the middle of the current transformer material, so that the current transformer material can be placed between the shell and the cylinder, and the current transformer material can be initially limited, which is not easy to be skewed and offset, and is convenient for subsequent fixed installation.
[0027] Second, the fixing device for casting the current transformer utilizes the extension and contraction of the telescopic end of the cylinder and the connection of the inclined connecting beam to drive the supporting crossbeam to move up and down, thereby driving the rectangular pressing block to move together, so that the rectangular pressing block can be matched with and separated from the notch on the outside of the shell, promoting the mutual coordination between the structures, facilitating the batch casting of the current transformer, and facilitating the expansion between the structures, which is helpful for taking the cast current transformer.
[0028] 3. The fixing device of the cast current transformer, when the telescopic end of the cylinder drives the supporting beam to move, the square guide column is driven to move, and combined with the square guide column, it passes through the center of the rectangular sliding sleeve. Through the cooperation between the square guide column and the rectangular sliding sleeve, the square guide column is used to guide, and under the connection of the supporting beam, the rectangular pressing block is stabilized as a whole, so that the rectangular pressing block and the notch of the shell cooperate smoothly.
[0029] Fourth, the fixing device of the cast current transformer utilizes the contraction of the telescopic end of the cylinder, and under the connection of the inclined connecting beam and the supporting crossbeam, the rectangular pressing block moves downward, so that the wire on the top of the wire positioning plate can be pressed, and the downward pressure on the wire positioning plate is utilized to make the supporting connecting rod slide downward, and squeeze the supporting elastic block, so that the supporting elastic block produces elastic deformation, and combines the action force and reaction force to fix and compact the wire, so that it is not easy to cause the wire connection to break as the equipment is running.
[0030] 5. The fixing device for casting the current transformer can block the current transformer material inside the shell when the rectangular pressing block moves downward and matches the notch on the outside of the shell through the rectangular pressing block, so that the current transformer material is positioned, and at the same time, the inner cavity of the shell can be closed, so that the fluid will not flow out when the current transformer material is cast.
[0031] 6. The fixing device of the cast current transformer can apply pressing force to the compressed swing plate as the square guide column continues to move downward, so that the compressed swing plate drives the strip connecting rod to rotate and adjust the angle, and the reset spring is stretched, thereby driving the conical bucket to move upward, so that the bottom end of the swing rod is subjected to an upward urging force. When the square guide column moves upward, the pressing force on the compressed swing plate disappears, and under the elastic tension of the reset spring, the compressed swing plate drives the strip connecting rod to rotate in the opposite direction for reset, so that the conical bucket can move downward, and the urging force on the bottom end of the swing rod disappears.
[0032] 7. The fixing device for casting the current transformer utilizes the conical bucket to move upward, so that the swing rod is driven inward, and the pushing ball is embedded in the through hole, and the spherical surface of the pushing ball is fitted with the inner wall of the circular hole in the middle of the current transformer material installed in the shell, and the interior of the current transformer material is pressed by the top of multiple pushing balls, and the pushing balls are evenly installed inside the cylinder, so that the current transformer material is automatically centered and is not prone to eccentricity, thereby facilitating accurate casting of the current transformer material. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] Figure 1 This is a schematic diagram of the overall structure of the fixing device for casting a current transformer of the present invention;
[0034] Figure 2 It is a schematic diagram of the side structure of the fixing device for casting the current transformer of the present invention;
[0035] Figure 3 It is a schematic diagram of the connection structure between the bearing mechanism and the frame of the present invention;
[0036] Figure 4 It is a schematic diagram of the overall structure of the carrying mechanism of the present invention;
[0037] Figure 5 It is a schematic diagram of the connection structure between the pressing mechanism, the cylinder and the rectangular sliding sleeve of the present invention;
[0038] Figure 6 It is a schematic diagram of the overall structure of the pressing mechanism of the present invention;
[0039] Figure 7 It is a schematic diagram of the overall structure of the auxiliary components of the present invention;
[0040] Figure 8 It is a schematic diagram of the overall structure of the self-centering module of the present invention.
[0041] In the figure: 1. frame; 2. rectangular sliding sleeve; 3. cylinder; 4. bearing mechanism; 5. pressing mechanism; 6. auxiliary component; 41. housing; 42. cylinder; 43. through hole; 44. supporting connecting rod; 45. wire positioning plate; 46. supporting elastic block; 51. inclined connecting beam; 52. square guide column; 53. supporting crossbeam; 54. rectangular pressing block; 55. slot; 61. pressure swing plate; 62. return spring; 63. strip connecting rod; 64. conical bucket; 65. self-centering module; 651. swing rod; 652. bending rod; 653. pushing ball; 654. elastic supporting ring. DETAILED DESCRIPTION
[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
[0043] The first embodiment, as Figure 1-Figure 4 As shown, the present invention provides a technical solution: a fixing device for casting a current transformer, comprising:
[0044] A frame 1, a rectangular sleeve 2 is installed in the middle of the top of the frame 1, and a cylinder 3 is fixedly installed at the bottom of the frame 1 and close to the rectangular sleeve 2;
[0045] A bearing mechanism 4, which is used to place the current transformer material to be cast and to limit the position, and the bearing mechanism 4 is installed on the side of the outer side of the frame 1;
[0046] The bearing mechanism 4 includes a shell 41, the circular back of the outer side of the shell 41 is fixedly installed at the side of the outer side of the frame 1, a cylinder 42 is fixedly installed in the middle of the inner cavity of the shell 41, a through hole 43 is opened in the middle of the outer circular surface of the cylinder 42, a supporting connecting rod 44 is slidably installed at the notch at the bottom of the inner cavity of the shell 41, a wire positioning plate 45 is fixedly installed at the top of the supporting connecting rod 44, a supporting elastic block 46 is fixedly installed at the bottom of the supporting connecting rod 44, and the supporting elastic block 46 is installed inside the shell 41. The staff will place the current transformer material to be cast inside the shell 41, and use the cylinder 42 to pass through the circular hole in the middle of the current transformer material, so that the current transformer material can be placed between the shell 41 and the cylinder 42, so that the current transformer material can be initially limited, and it is not easy to be skewed and offset, which is convenient for subsequent fixed installation;
[0047] There are two wire positioning plates 45 , and both of them are arc-shaped. The openings of the wire positioning plates 45 face upwards, so that the wires can be clamped inside the wire positioning plates 45 . The through holes 43 are evenly distributed in the middle of the outer circumference of the cylinder 42 .
[0048] The supporting elastic block 46 is hollow and is installed directly below the supporting connecting rod 44 . The supporting elastic block 46 is made of rubber, so that the supporting elastic block 46 can be elastically deformed after being pressed by the supporting connecting rod 44 .
[0049] The second embodiment, as Figure 1-Figure 6 As shown, based on the first embodiment:
[0050] A pressing mechanism 5, which is used to position the current transformer material and press the wire, and the pressing mechanism 5 is installed on the top of the frame 1;
[0051] The pressing mechanism 5 includes an inclined connecting beam 51, the middle of the bottom of the inclined connecting beam 51 is fixedly installed with the telescopic end of the cylinder 3, a square guide column 52 is fixedly installed at the bottom of the inclined connecting beam 51, and the square guide column 52 is slidably installed between the rectangular sliding sleeve 2, and a supporting crossbeam 53 is fixedly installed at the top of the inclined connecting beam 51, and rectangular pressing blocks 54 are fixedly installed at both ends of the supporting crossbeam 53, and the rectangular pressing blocks 54 are installed just above the wire positioning plate 45. A card slot 55 is provided at the side of the bottom of the rectangular pressing block 54. By utilizing the elongation and contraction of the telescopic end of the cylinder 3 and the connection of the inclined connecting beam 51, the supporting crossbeam 53 is driven to move up and down, so that the rectangular pressing block 54 is driven to move together, so that the rectangular pressing block 54 can be matched and separated with the notch on the outside of the shell 41, so as to promote the mutual cooperation between the structures and facilitate the batch casting of current transformers;
[0052] At the same time, it is convenient to expand between structures and helps to take out the cast current transformer.
[0053] The square guide column 52 passes through the middle of the rectangular sleeve 2, and the inclined connecting beam 51 is installed just above the telescopic end of the cylinder 3. When the telescopic end of the cylinder 3 drives the supporting beam 53 to move, the square guide column 52 is driven to move, and combined with the square guide column 52, it passes through the center of the rectangular sleeve 2. Through the cooperation between the square guide column 52 and the rectangular sleeve 2, the square guide column 52 is used to guide, and under the connection of the supporting beam 53, the rectangular pressing block 54 is stabilized as a whole, so that the rectangular pressing block 54 and the notch of the outer shell 41 cooperate smoothly.
[0054] There are two rectangular pressing blocks 54, and the two rectangular pressing blocks 54 are symmetrically installed along the supporting crossbeam 53. The position of the card slot 55 corresponds to the position of the wire positioning plate 45. When the current transformer material is placed in the housing 41, and by utilizing the contraction of the telescopic end of the cylinder 3, and under the connection of the inclined connecting beam 51 and the supporting crossbeam 53, the rectangular pressing block 54 moves downward, so that the wire at the top of the wire positioning plate 45 can be pressed, and the wire positioning plate 45 is subjected to downward pressure to make the supporting connecting rod 44 slide downward, and squeeze the supporting elastic block 46, so that the supporting elastic block 46 produces elastic deformation, and combined with the action force and reaction force, the wire is fixed and compacted.
[0055] When the rectangular pressing block 54 moves downward and fits in with the notch on the outside of the housing 41, the current transformer material inside the housing 41 can be isolated and positioned.
[0056] At the same time, the inner cavity of the housing 41 can be sealed, so that the fluid will not flow out when the current transformer material is poured.
[0057] The third embodiment, as Figure 1-Figure 8 As shown, based on the first and second embodiments:
[0058] An auxiliary component 6 is installed on the outer cylindrical surface of the shell 41 and near the bottom. The auxiliary component 6 is installed below the frame 1. The auxiliary component 6 includes a compressed swing plate 61. The outer side of the compressed swing plate 61 and the outer cylindrical surface of the shell 41 are rotatably installed through the base near the bottom. The compressed end of the compressed swing plate 61 extends to the bottom end of the square guide column 52. A return spring 62 is fixedly installed between the inclined surface of the outer side of the compressed swing plate 61 and the outer cylindrical surface of the shell 41. A strip connecting rod 63 is fixedly installed at the bottom end of the compressed swing plate 61. A conical bucket 64 is fixedly installed at the bottom end of the strip connecting rod 63 and near the bottom of the cylinder 42. A self-centering module 65 is installed in the inner cavity of the cylinder 42 and near the conical bucket 64. The self-centering module 65 is installed near the through hole 43.
[0059] When the square guide column 52 moves downward, the bottom end of the square guide column 52 can be used to contact the compressed end of the compressed swing plate 61. As the square guide column 52 continues to move downward, a pressing force can be applied to the compressed swing plate 61, so that the compressed swing plate 61 drives the bar connecting rod 63 to rotate and adjust the angle, and the return spring 62 is stretched, thereby driving the conical bucket 64 to move upward, so that the bottom end of the swing rod 651 is subjected to an upward pushing force;
[0060] When the square guide column 52 moves upward, the pressing force on the compressed swing plate 61 disappears, and under the elastic tension of the reset spring 62, the compressed swing plate 61 drives the strip connecting rod 63 to rotate in the opposite direction for reset, so that the conical bucket 64 can move downward, and the top force on the bottom end of the swing rod 651 disappears.
[0061] There are two pressure swing plates 61 , and the two pressure swing plates 61 are symmetrically installed along the square guide column 52 , and the square guide column 52 and the strip connecting rod 63 are both installed at an angle.
[0062] The conical bucket 64 is installed directly below the cylinder 42 , and the diameter of the conical bucket 64 gradually decreases from top to bottom. The return spring 62 is arc-shaped, and the circular shape of the return spring 62 coincides with the rotation point of the bottom end of the compressed swing plate 61 .
[0063] The self-centering module 65 includes a swing rod 651, the outer side of the swing rod 651 and the position near the top are hinged to the middle of the inner wall of the cylinder 42 through the base, the top of the swing rod 651 and the position near the through hole 43 are fixedly installed with a bending rod 652, the top of the bending rod 652 is fixedly installed with a pushing ball 653, the position of the pushing ball 653 corresponds to the position of the through hole 43, and the bending part of the outer cylindrical surface of the swing rod 651 is fixedly installed with an elastic support ring 654. When the conical bucket 64 moves upward, and combined with the conical bucket 64 gradually reducing its diameter from top to bottom, the swing rod 651 is driven inward. The force can drive the bending rod 652 to rotate and adjust the angle through the swing rod 651, and the elastic support ring 654 is compressed, so that the pushing ball 653 is embedded in the through hole 43, and the spherical surface of the pushing ball 653 is fitted with the inner wall of the circular hole in the middle of the current transformer material installed in the shell 41, and the interior of the current transformer material is pressed by the top of multiple pushing balls 653, and the pushing balls 653 are evenly installed in the cylinder 42, so that the current transformer material is automatically centered and less likely to be eccentric, which helps to accurately cast the current transformer material.
[0064] There are three pushing balls 653, and the three pushing balls 653 are evenly installed inside the cylinder 42. The swing rod 651 is evenly installed inside the cylinder 42. The bottom end of the swing rod 651 fits with the conical surface inside the conical bucket 64. As the conical bucket 64 moves downward, the driving force of the conical bucket 64 on the bottom end of the swing rod 651 disappears, and under the elastic force provided by the elastic support ring 654, the swing rod 651 drives the bending rod 652 to rotate in the opposite direction, so that the spherical surface of the pushing ball 653 is separated from the inner wall of the circular hole in the middle of the current transformer material, so as to facilitate the removal of the cast current transformer.
[0065] When in use, the staff first places the current transformer material to be cast into the interior of the shell 41, and uses the cylinder 42 to pass through the circular hole in the middle of the current transformer material, so that the current transformer material is between the shell 41 and the cylinder 42, and the current transformer material can be initially limited;
[0066] Then, by utilizing the contraction of the telescopic end of the cylinder 3 and the connection of the inclined connecting beam 51, the supporting cross beam 53 is driven to move downward, so that the rectangular pressing block 54 is driven to move together, so that the rectangular pressing block 54 can be matched with the notch on the outer side of the shell 41, thereby promoting the mutual cooperation between the structures;
[0067] The square guide column 52 is combined to pass through the center of the rectangular sleeve 2. The square guide column 52 cooperates with the rectangular sleeve 2, and the rectangular pressing block 54 is made stable as a whole under the guidance of the square guide column 52 and the connection of the supporting crossbeam 53, so that the rectangular pressing block 54 and the notch of the housing 41 cooperate smoothly.
[0068] And under the connection of the inclined connecting beam 51 and the supporting cross beam 53, the rectangular pressing block 54 moves downward, so that the wire on the top of the wire positioning plate 45 can be pressed, and the wire positioning plate 45 is subjected to downward pressure to make the supporting connecting rod 44 slide downward and squeeze the supporting elastic block 46, so that the supporting elastic block 46 produces elastic deformation, and combined with the action force and reaction force, the wire is fixed and compacted.
[0069] At the same time, when the rectangular pressing block 54 moves downward and matches the notch on the outer side of the housing 41, the current transformer material inside the housing 41 can be blocked, so that the current transformer material is positioned;
[0070] The bottom end of the square guide column 52 can be used to contact the pressure end of the pressure swing plate 61. As the square guide column 52 continues to move downward, a pressing force can be applied to the pressure swing plate 61, so that the pressure swing plate 61 drives the bar connecting rod 63 to rotate and adjust the angle, and the return spring 62 is stretched, thereby driving the conical bucket 64 to move upward, so that the bottom end of the swing rod 651 is subjected to an upward urging force.
[0071] Moreover, when the conical bucket 64 moves upward, and the diameter of the conical bucket 64 gradually decreases from top to bottom, the swing rod 651 is driven inward, and the swing rod 651 can drive the bending rod 652 to rotate and adjust the angle, and the elastic support ring 654 is compressed, so that the pushing ball 653 is embedded in the through hole 43, and the spherical surface of the pushing ball 653 is fitted with the inner wall of the circular hole in the middle of the current transformer material installed in the shell 41, and the interior of the current transformer material is pressed by the top of multiple pushing balls 653, and the pushing balls 653 are evenly installed in the cylinder 42, so that the current transformer material is automatically centered, and at this time, liquid raw materials can be poured between the shell 41 and the cylinder 42 to pour the current transformer material;
[0072] When the pouring is completed, the elongated end of the cylinder 3 is extended, and the square guide column 52 moves upward, so that the pressing force on the pressure swing plate 61 disappears, and under the elastic tension of the reset spring 62, the pressure swing plate 61 drives the bar connecting rod 63 to rotate in the opposite direction to reset, so that the conical bucket 64 moves downward, so that the top force on the bottom end of the swing rod 651 disappears;
[0073] The rectangular pressing block 54 is moved upward, and the current transformer cast in the housing 41 can be taken out.
[0074] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A fixing device for a cast current transformer, characterized in that: include: A frame (1), wherein a rectangular sliding sleeve (2) is installed in the middle of the top of the frame (1), and a cylinder (3) is fixedly installed at the bottom of the frame (1) and close to the rectangular sliding sleeve (2); A bearing mechanism (4), the bearing mechanism (4) is used to place the current transformer material to be cast and to limit the position, the bearing mechanism (4) being installed on the side of the outer side of the frame (1); The bearing mechanism (4) comprises a shell (41), the outer circular rear surface of the shell (41) is fixedly mounted on the outer side of the frame (1), a cylinder (42) is fixedly mounted in the middle of the inner cavity of the shell (41), a through hole (43) is provided in the middle of the outer circular surface of the cylinder (42), a supporting connecting rod (44) is slidably mounted in the notch at the bottom of the inner cavity of the shell (41), a wire positioning plate (45) is fixedly mounted on the top end of the supporting connecting rod (44), a supporting elastic block (46) is fixedly mounted on the bottom end of the supporting connecting rod (44), and the supporting elastic block (46) is mounted inside the shell (41); A pressing mechanism (5), the pressing mechanism (5) being used to position the current transformer material and press the wire, the pressing mechanism (5) being mounted on the top of the frame (1); The pressing mechanism (5) comprises an inclined connecting beam (51), the middle of the bottom of the inclined connecting beam (51) is fixedly mounted to the telescopic end of the cylinder (3), a square guide column (52) is fixedly mounted at the bottom end of the inclined connecting beam (51), the square guide column (52) is slidably mounted between the rectangular sliding sleeve (2), a supporting crossbeam (53) is fixedly mounted at the top end of the inclined connecting beam (51), rectangular pressing blocks (54) are fixedly mounted at both ends of the supporting crossbeam (53), the rectangular pressing block (54) is mounted directly above the wire positioning plate (45), and a card slot (55) is provided at the side of the bottom of the rectangular pressing block (54); There are two rectangular pressing blocks (54), and the two rectangular pressing blocks (54) are symmetrically installed along the supporting crossbeam (53), and the position of the clamping slot (55) corresponds to the position of the wire positioning plate (45); An auxiliary component (6) is installed on the outer cylindrical surface of the shell (41) and near the bottom. The auxiliary component (6) is installed below the frame (1). The auxiliary component (6) comprises a pressure-bearing swing plate (61). The outer side of the pressure-bearing swing plate (61) and the position near the bottom are rotatably installed through a base and the outer cylindrical surface of the shell (41). The pressure-bearing end of the pressure-bearing swing plate (61) extends to the bottom end of the square guide column (52). A return spring (62) is fixedly installed between the inclined surface of the outer side of the pressure-bearing swing plate (61) and the outer cylindrical surface of the shell (41). A strip connecting rod (63) is fixedly installed on the bottom end of the pressure-bearing swing plate (61). A conical bucket (64) is fixedly installed on the bottom end of the strip connecting rod (63) and near the bottom of the cylinder (42). A self-centering module (65) is installed in the inner cavity of the cylinder (42) and near the conical bucket (64). The self-centering module (65) is installed at a position near the through hole (43). The self-centering module (65) comprises a swing rod (651), the outer side of the swing rod (651) and close to the top end thereof is hinged to the middle of the inner wall of the cylinder (42) through a base, a bending rod (652) is fixedly installed at the top end of the swing rod (651) and close to the through hole (43), a pushing ball (653) is fixedly installed at the top end of the bending rod (652), the position of the pushing ball (653) corresponds to the position of the through hole (43), and an elastic support ring (654) is fixedly installed at the bending part of the outer cylindrical surface of the swing rod (651).
2. A fixing device for a cast current transformer according to claim 1, characterized in that: There are two wire positioning plates (45), and both of the two wire positioning plates (45) are arc-shaped. The openings of the wire positioning plates (45) face upward, and the through holes (43) are evenly distributed in the middle of the outer circumferential surface of the cylinder (42).
3. A fixing device for a cast current transformer according to claim 1, characterized in that: The supporting elastic block (46) is hollow, and the supporting elastic block (46) is installed directly below the supporting connecting rod (44). The material of the supporting elastic block (46) is rubber.
4. A fixing device for a cast current transformer according to claim 1, characterized in that: The square guide column (52) passes through the middle of the rectangular sliding sleeve (2), and the inclined connecting beam (51) is installed directly above the telescopic end of the cylinder (3).
5. A fixing device for a cast current transformer according to claim 1, characterized in that: There are two pressure-bearing swing plates (61), and the two pressure-bearing swing plates (61) are symmetrically installed along the square guide column (52), and the square guide column (52) and the strip connecting rod (63) are both installed at an angle.
6. A fixing device for a cast current transformer according to claim 1, characterized in that: The conical bucket (64) is installed directly below the cylinder (42), and the diameter of the conical bucket (64) gradually decreases from top to bottom. The return spring (62) is arc-shaped, and the circular shape of the return spring (62) coincides with the rotation point of the bottom end of the compressed swing plate (61).
7. A fixing device for a cast current transformer according to claim 1, characterized in that: There are three pushing balls (653), and the three pushing balls (653) are evenly installed inside the cylinder (42). The swing rod (651) is evenly installed inside the cylinder (42), and the bottom end of the swing rod (651) fits with the conical surface inside the conical bucket (64).
Citation Information
Patent Citations
Assembling equipment for current transformer machining
CN118553525A
Sensor magnetic steel forming mould
CN218656808U