Novel tool for inspecting symmetry degree of double key grooves of conducting rod
By designing the double-keyway symmetry inspection tool for conductive rods, the problem of double-keyway symmetry detection of conductive rods is solved, ensuring the normal installation of the guide sleeve and improving product quality.
Patent Information
- Application Number
- CN202422127664.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The prior art lacks effective tools to detect the symmetry of the double keyway of the conductive rod, resulting in the inability to monitor whether it is symmetrical, and there are quality hazards.
A conductive rod double-key slot symmetry test tool for conducting rods including base, core and card gauge is designed, and the symmetry detection head of the card gauge is used to cooperate with the key slot of the conductive rod.
Effective detection of the symmetry of the double keyway of the conductive rod is achieved, ensuring that the guide sleeve can be installed normally and avoiding installation problems caused by the conductive rod due to asymmetry.
Smart Images
Figure CN223192284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling, in particular to a novel conductive rod double keyway symmetry inspection tool. Background Art
[0002] The vacuum interrupter's bellows connects the moving conductive rod to the tube housing to ensure a dynamic seal. One end of the moving conductive rod is connected to the operating mechanism. Driven by the operating mechanism, it moves along the arc chamber's axial direction, thereby driving the moving contact at the other end of the moving conductive rod to complete the opening and closing operations. The allowable number of these opening and closing operations depends largely on the life of the bellows, which serves as the dynamic seal. This life is strongly related to whether the bellows is distorted by the torsional force transmitted from the moving conductive rod during the arc chamber installation process.
[0003] To prevent the bellows from twisting and deforming during arc extinguishing chamber installation, a guide sleeve is installed on the arc extinguishing chamber to prevent the movable conductive rod from rotating. The sleeve and the conductive rod must fit tightly but not become locked. The guiding principle of the guide sleeve is that the sleeve has symmetrical double keys that mate with symmetrical double keyways on the movable conductive rod. During the subsequent installation of the upper mechanism, the guide sleeve prevents the movable conductive rod from rotating clockwise. Therefore, the double keyways of the movable conductive rod must be symmetrical and not misaligned, otherwise the guide sleeve cannot be installed.
[0004] At present, there is no effective tool to inspect the symmetry of the double key groove of the conductive rod, and it can only be inspected visually, so the symmetry of the double key groove of the conductive rod cannot be effectively monitored, and there is a quality risk of asymmetric double key grooves. Utility Model Content
[0005] The utility model provides a novel conductive rod double keyway symmetry inspection tool, which can be used to detect the symmetry of the conductive rod double keyway.
[0006] In order to achieve the above technical purpose, the technical solution adopted by this utility model is:
[0007] A new type of conductive rod double keyway symmetry inspection tool, including a base, a core, and a caliper. The base is cylindrical, with a groove in the center of the upper part, a threaded hole in the center of the bottom of the groove, and symmetrical coaxial positioning holes on the side walls. The core is a cylinder, one end of which is provided with an external thread that matches the threaded hole. The cylinder is adapted to the center hole of the conductive rod. The caliper is cylindrical, with a detection head at the front end. There are two calipers, which are respectively connected to the positioning holes, and the detection heads are adapted to the keyway of the conductive rod.
[0008] Furthermore, the cross section of the detection head is rectangular and smaller than the cross section of the cylinder.
[0009] Furthermore, the detection head coincides with the cylindrical axis of the caliper.
[0010] Furthermore, the cross section of the detection head is a square, and the side length is adapted to the keyway width of the conductive rod.
[0011] Furthermore, the cross section of the detection head is circular, and the diameter is adapted to the width of the keyway.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model can detect the symmetry of the double key grooves of the conductive rod, has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0015] Figure 1 is a cross-sectional view of the base;
[0016] Figure 2 is a top view of the base;
[0017] Figure 3 is a cross-sectional view of the conductive rod;
[0018] Figure 4 for Figure 3 Schematic diagram of the middle section EE;
[0019] Figure 5 This is the main view of the caliper;
[0020] Figure 6 It is a top view of the caliper;
[0021] Figure 7 is the main view of the core;
[0022] Figure 8 This is an assembly drawing of the utility model when in use;
[0023] In the figure: 1-base, 2-core, 3-slot, 4-threaded hole, 5-positioning hole, 6-conductive rod, 7-center hole, 8-keyway, 9-caliper, 10-detection head. DETAILED DESCRIPTION
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0025] In the description of the embodiments of the present application, it should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use, or is the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0027] As shown in the figure, a new type of conductive rod double keyway symmetry inspection tool includes a base 1, a core 2, and a caliper 9. The base 1 is cylindrical, with a groove 3 provided in the upper center, a threaded hole 4 provided in the bottom center of the groove 3, and symmetrical coaxial positioning holes 5 provided on the side wall. The core 2 is a cylinder with an external thread provided at one end for connection with the threaded hole 4 of the base 1. The cylinder is adapted to the center hole 7 of the conductive rod 6 to axially position the conductive rod 6. The caliper is cylindrical, with a detection head 10 at the front end. The diameter of the caliper 9 is adapted to the diameter of the positioning hole 5. The detection head 10 coincides with the cylindrical axis of the caliper 9. The cross section of the detection head 10 is rectangular, and the size is smaller than the cylindrical cross section. There are two calipers 9, which are respectively connected in the positioning hole 5, and the detection head 10 is adapted to the keyway 8 of the conductive rod 6; preferably, as Figure 6 As shown, the cross-section of the detection head 10 is square, with a side length adapted to the width of the keyway 8 of the conductive rod 6. Alternatively, the cross-section of the detection head 10 is circular, with a diameter adapted to the width of the keyway 8. When both detection heads 10 are precisely inserted into the keyway 8 of the conductive rod 6, the conductive rod 6 is radially positioned, i.e., the symmetry of the two keyways 8 of the conductive rod 6 meets product quality requirements.
[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A new type of conductive rod double keyway symmetry inspection tool, characterized by: The invention comprises a base (1), a core (2), and a caliper (9). The base (1) is cylindrical, with a groove (3) provided at the center of the upper portion, a threaded hole (4) provided at the center of the bottom of the groove (3), and symmetrical coaxial positioning holes (5) provided on the side wall. The core (2) is cylindrical, with an external thread matched with the threaded hole (4) provided at one end, and the cylinder is adapted to the center hole (7) of the conductive rod (6). The caliper (9) is cylindrical, with a detection head (10) provided at the front end. There are two calipers (9), which are respectively connected to the positioning holes (5). The detection head (10) is adapted to the keyway (8) of the conductive rod (6).
2. The new conductive rod double keyway symmetry inspection tool according to claim 1 is characterized by: The cross section of the detection head (10) is rectangular and smaller than the cross section of a cylinder.
3. The new conductive rod double keyway symmetry inspection tool according to claim 2 is characterized by: The detection head (10) coincides with the cylindrical axis of the caliper (9).
4. The new conductive rod double keyway symmetry inspection tool according to claim 3 is characterized by: The cross section of the detection head (10) is a square, and the side length is adapted to the width of the keyway (8) of the conductive rod (6).
5. The new conductive rod double keyway symmetry inspection tool according to claim 1 is characterized by: The cross section of the detection head (10) is circular, and the diameter is adapted to the width of the keyway (8).