Tool applied to rapid installation of winding type rotary transformer

Abstract

The utility model discloses a tool applied to rapid installation of a winding type rotary transformer. The tool comprises a stator base and a check ring pressing head. The stator base is provided with a positioning groove which is concentrically arranged with a pressing rod of the hand press and is used for limiting the inserting machine shell; a connecting rod used for being connected to a pressing rod of a hand press is arranged at the upper end of the check ring pressing head. The connecting rod and a pressing rod of the hand press are concentrically arranged; the lower end of the check ring pressing head is provided with a pressing part which is used for pressing the ring transformer stator assembly downwards until the ring transformer stator assembly is located at the pre-installation position, and therefore a clamping groove which is formed in the machine shell and used for installing a check ring is exposed. The peripheral side of the pressing part is in clearance fit with the mounting notch of the shell; and a hollow part through which a worker can observe the mounting state in the shell is formed on the peripheral side of the pressing part. The tool applied to rapid installation of the winding type rotary transformer can effectively improve the assembly efficiency of the winding type rotary transformer, reduce potential quality hazards and improve the reliability of the rotary transformer.

Description

Technical Field

[0001] This utility model relates to a tooling for the rapid installation of wound rotary transformers. Background Technology

[0002] Traditionally, when assembling the stator assembly of a wound-rotor transformer housing, the common practice is to place a retaining ring locating cover onto the housing, then insert the retaining ring into the locating cover, and finally use a hand press to press the retaining ring into the groove in the housing. This assembly technique faces two problems: Firstly, the need to place the retaining ring locating cover onto the housing for each assembly increases the assembly process and reduces efficiency. Secondly, the conical design of the retaining ring locating cover used in this technique directly affects whether the retaining ring can smoothly enter the housing groove, making its design and manufacturing difficult. Even if the taper is appropriate, if the retaining ring is not placed horizontally, once the retaining ring presses down, either half of the retaining ring will enter the housing groove while the other half remains outside, or the retaining ring will be squeezed out of the locating cover by the press, requiring a second assembly. This not only wastes assembly time but also creates the potential for incomplete assembly and quality issues. Utility Model Content

[0003] This utility model provides a tooling solution for the rapid installation of wound-rotor rotary transformers, which solves the aforementioned technical problems. The specific technical solution is as follows:

[0004] A tooling for rapid installation of a wound-rotor transformer includes: a stator base for fixing to a base of a hand press to limit the installation of the transformer housing; and a retaining ring press head for pressing the toroidal transformer stator assembly inside the housing. The stator base has a positioning groove concentrically arranged with the press rod of the hand press to limit the insertion into the housing. The upper end of the retaining ring press head has a connecting rod for connecting to the press rod of the hand press. The connecting rod is concentrically arranged with the press rod of the hand press. The lower end of the retaining ring press head has a clamping part for pressing the toroidal transformer stator assembly downward until it is in a pre-installation position, thereby exposing a retaining ring groove formed on the housing. The outer periphery of the clamping part is clearance-fitted with the installation groove of the housing. The periphery of the clamping part has a cutout for allowing the operator to observe the installation status inside the housing.

[0005] Furthermore, the lower end of the clamping part has multiple clamping blocks formed on its periphery for clamping the retaining ring and the annular transformer stator assembly; the multiple clamping blocks extend horizontally from the periphery of the clamping part.

[0006] Furthermore, the gaps between each pair of the multiple clamping blocks form a hollow section.

[0007] Furthermore, the number of clamping blocks is even, and they are evenly distributed along the circumference of the clamping part; among the multiple clamping blocks, there are always two that are arranged opposite each other about the central axis of the clamping part.

[0008] Furthermore, the number of clamping blocks is 4.

[0009] Furthermore, the stator base has fixing holes on both sides for fixing the stator base to the base of the hand press.

[0010] Furthermore, the fixing hole is an oblong hole with one end open.

[0011] Furthermore, the connecting rod of the retaining ring pressure head is press-fitted into the connecting groove formed by the pressure rod of the hand press.

[0012] Furthermore, the connecting rod of the retaining ring pressure head is threadedly connected to the threaded groove formed in the pressure rod of the hand press.

[0013] The advantage of this utility model is that the tooling provided for the rapid installation of wound rotary transformers can quickly and stably complete the assembly of the housing and stator components of wound rotary transformers, thereby improving production efficiency and reducing potential product quality issues. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the tooling for quick installation of a wound rotary transformer according to this utility model;

[0016] Figure 2 yes Figure 1 A cross-sectional view of a tooling used for quick installation of wound-rotor rotary transformers;

[0017] The tooling 10 used for quick installation of wound rotary transformers includes a stator base 11, a positioning groove 111, a fixing hole 112, a retaining ring pressure head 12, a connecting rod 121, a pressing part 122, a hollow part 123, a pressing block 124, a housing 13, a slot 131, a toroidal transformer stator assembly 14, and a retaining ring 15. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0019] like Figures 1 to 2 As shown, this application discloses a tooling 10 for quick installation of a wound-rotor rotary transformer, comprising: a stator base 11 and a retaining ring press head 12. The stator base 11 is fixed to the base of a hand press and can limit the installation of the transformer housing 13. The retaining ring press head 12 can press the toroidal transformer stator assembly 14 inside the housing 13, thereby allowing the operator to easily install the retaining ring 15 by hand, that is, to easily install the retaining ring 15 into the slot 131 of the housing 13, thereby achieving the limiting installation of the toroidal transformer stator assembly 14. Specifically: the stator base 11 has a positioning groove 111, which is concentrically set with the pressure bar of the hand press to limit the insertion of the housing 13; the upper end of the retaining ring pressure head 12 is provided with a connecting rod 121, which is connected to the pressure bar of the hand press, and the connecting rod 121 is concentrically set with the pressure bar of the hand press, thereby ensuring that the hand press can be aligned with the toroidal transformer stator assembly 14 for pressing; the lower end of the retaining ring pressure head 12 is provided with a pressing part 122, which is used to press the toroidal transformer stator assembly 14 downward until the toroidal transformer stator assembly 14 is in the pre-positioned position. The installation position exposes the slot 131 formed on the housing 13, allowing the retaining ring 15 to be easily installed. The outer periphery of the clamping part 122 is fitted with the mounting groove of the housing 13 to improve the concentricity of the housing 13 and the positioning groove 111. The periphery of the clamping part 122 has a hollow part 123 to allow the staff to observe the installation status inside the housing 13, ensuring that the staff can clearly see whether there are any problems with the installation of the retaining ring 15 and the toroidal transformer stator assembly 14, so that the retaining ring 15 can be quickly and accurately installed into the slot 131 of the housing 13.

[0020] In one specific implementation, a plurality of pressing blocks 124 are formed on the lower end of the pressing part 122 around its periphery. The pressing blocks 124 press the retaining ring 15 and the annular transformer stator assembly 14. The plurality of pressing blocks 124 extend horizontally from the periphery of the pressing part 122. In this way, the gaps between each pair of the plurality of pressing blocks 124 form a hollow part 123. The structure is simple and easy to use.

[0021] In this design, the number of clamping blocks 124 is even, and they are evenly distributed along the circumference of the clamping part 122. Two of the clamping blocks 124 are always positioned opposite each other about the central axis of the clamping part 122. This ensures that when one clamping block 124 presses against one side of the upper surface of the toroidal transformer stator assembly 14, there is another clamping block 124 positioned opposite it on the other side of the upper surface of the toroidal transformer stator assembly 14. This relative positioning on the other side of the upper surface of the toroidal transformer stator assembly 14 provides clamping, thereby ensuring the structural and electrical stability of the toroidal transformer stator assembly 14. Specifically, the number of clamping blocks 124 can be set to four. The four clamping blocks 124 form a cross-shaped clamping structure, which can symmetrically clamp the toroidal transformer stator assembly 14, preventing asymmetrical deformation of the internal structure of the toroidal transformer stator assembly 14 and thus ensuring the electrical performance of the toroidal transformer stator assembly 14. In this way, the structure of the four clamping blocks 124 ensures the clamping stability of the structure while also freeing up enough space to form the hollow part 123, making it easier for staff to observe the internal installation.

[0022] In one specific implementation, the stator base 11 has fixing holes 112 on both sides for fixing the stator base 11 to the base of the hand press. Specifically, the fixing hole 112 can be set as an oblong hole with one end open, so as to facilitate the adjustment of the installation position of the stator base 11 and facilitate the concentric setting of the stator base 11 and the pressure rod of the hand press.

[0023] In one specific implementation, the connecting rod 121 of the retaining ring pressure head 12 is press-fitted into the connecting groove formed by the pressure rod of the hand press, resulting in higher concentricity during installation.

[0024] As an optional implementation, the connecting rod 121 of the retaining ring pressure head 12 is threadedly connected to the threaded groove formed in the pressure rod of the hand press, making disassembly and replacement convenient.

[0025] The assembly process of the toroidal stator assembly 14 and retaining ring 15 of the transformer using the aforementioned tooling 10 for quick installation of wound-rotor rotary transformers is as follows:

[0026] a: Install the retaining ring pressure head 12 into the die hole of the pressure rod of the hand press through the connecting rod 121;

[0027] b: Install the stator base 11 on the hand press base, and ensure that the positioning groove 111 of the stator base 11 and the retaining ring press head 12 maintain good concentricity.

[0028] c: Position the cable outlet sleeve of housing 13 facing the operator, and then place it flat in the positioning groove 111 of stator base 11;

[0029] d: The worker pinches the thin tip of the retaining ring 15 with his right hand and places it on the annular transformer stator assembly 14 inside the housing 13;

[0030] e: The operator presses down the hand press with their left hand, and the retaining ring press head 12 will press the toroidal transformer stator assembly 14 down from the housing 13. Then the slot 131 on the periphery of the housing 13 is exposed, and the operator inserts the retaining ring 15 into the slot 131 of the housing 13 with their right hand.

[0031] The aforementioned tooling 10 for rapid installation of wound rotary transformers, through the ingenious structural design of the stator base 11 and retaining ring pressure head 12, can achieve efficient assembly with simple operation using a hand press, thereby improving the reliability of the transformer assembly structure and reducing the assembly damage rate.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A jig for quick installation of a wire-wound rotary transformer, characterized by comprising: It comprises: a stator base for fixing to the base of a hand press machine for limiting the installation of a transformer shell, and a retainer ring press head for pressing the ring variable stator assembly in the shell; the stator base is formed with a positioning groove for concentrically arranging with the press rod of the hand press machine for limiting the insertion of the shell; the upper end of the retainer ring press head is provided with a connecting rod for connecting to the press rod of the hand press machine; the connecting rod is concentrically arranged with the press rod of the hand press machine; the lower end of the retainer ring press head is provided with a pressing part for pressing the ring variable stator assembly downward until it is in the pre-installation position, thereby exposing the clamping groove formed on the shell for installing the retainer ring; the outer periphery of the pressing part is clearance fit with the installation slot of the shell; the periphery of the pressing part is formed with an open part for the staff to observe the installation status in the shell.

2. The tool for quick installation of a winding type rotary transformer according to claim 1, wherein the lower end of the pressing part is formed with a plurality of pressing blocks on the periphery thereof for pressing the retainer ring and the ring variable stator assembly; the plurality of pressing blocks extend horizontally from the periphery of the pressing part.

3. The tool for quick installation of a winding type rotary transformer according to claim 2, wherein the plurality of pressing blocks constitute the open part between each other.

4. The tool for quick installation of a winding type rotary transformer according to claim 2, wherein the number of pressing blocks is even and evenly distributed along the circumference of the pressing part; two of the plurality of pressing blocks are oppositely arranged about the central axis of the pressing part.

5. The tool for quick installation of a winding type rotary transformer according to claim 4, wherein the number of pressing blocks is 4.

6. The tool for quick installation of a winding type rotary transformer according to claim 1, wherein both sides of the stator base are provided with fixing holes for fixing the stator base to the base of the hand press machine.

7. The tool for quick installation of a winding type rotary transformer according to claim 6, wherein the fixing hole is a waist-shaped hole with one end open.

8. The tool for quick installation of a winding type rotary transformer according to claim 1, wherein the connecting rod of the retainer ring press head is interference-pressed in the connecting groove formed in the press rod of the hand press machine.

9. The tool for quick installation of a winding type rotary transformer according to claim 1, wherein the connecting rod of the retainer ring press head is threadedly connected in the threaded groove formed in the press rod of the hand press machine.

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