Long-life rotating assembly of coaxial switch

Abstract

The invention discloses a long-life rotating assembly of a coaxial switch, and belongs to the technical field of coaxial switches. According to the coaxial switch, the reed assembly is installed on the rotating support frame through the bearing, the problem of abrasion caused by cooperation of plastic and metal shaft holes can be avoided, the service life of the rotating assembly is greatly prolonged, meanwhile, the accuracy and stability of force transmission of the rotating assembly are improved, and the service life and repeatability of the coaxial switch are improved; sliding friction between a plastic shaft and a metal hole in an original scheme is replaced by rolling friction of a bearing ball, abrasion of a rotating assembly in the moving process is reduced, consistency of transmission force of the rotating assembly is kept, and the service life of the coaxial switch is prolonged. The rotating assembly using the bearing is good in force transmission accuracy and stability and long in service life; the bearing is a standard component and is low in price.

Description

Technical Field

[0001] The invention belongs to the technical field of coaxial switches, and in particular relates to a long-life rotating component of a coaxial switch. Background Art

[0002] Coaxial switches can realize signal transmission and switching, and are key components for building switch matrices, automatic test systems and other instrument systems. The principle of coaxial switches is: the drive (remote control) signal passes through the circuit control system, and the rated drive voltage is applied to the electromagnetic system. The electromagnetic system changes state and drives the transmission channel switching of the microwave transmission system to complete signal switching or power transmission. The electromagnetic system and microwave system mainly transmit force through rotating components to complete the channel switching function, which is one of the key factors affecting the life of coaxial switches.

[0003] Similar implementation schemes of the present invention:

[0004] The existing rotating assembly is mainly composed of a rotating support frame, a reed mounting frame, a reed, and a reed support. The rotating support frame is fixed on the lower mounting plate of the relay assembly; the reed is fixed on the reed mounting frame; the rotating support is placed on the axis of the reed mounting frame, and then the groove of the reed support is inserted into the U-shaped groove of the rotating support frame and bent to fix the rotating support and the reed mounting frame.

[0005] When the coaxial switch is switched, the moving rod of the relay assembly hooks the spring mounting frame, driving the spring mounting frame to swing back and forth within a certain angle. During the swinging process, the axis of the spring mounting frame and the hole of the moving support are constantly rubbed, causing serious wear of the plastic parts, and the force transmitted by the rotating assembly is not stable enough, which reduces the life of the coaxial switch and causes poor repeatability of the coaxial switch indicators. The life of the switch rotating assembly using this solution is usually 100W times.

[0006] The existing technology transmits the force of the relay through the combination of a plastic shaft and a metal hole. After the coaxial switch is operated for tens of millions of times, the plastic shaft is severely worn, which can easily cause switch failure or deterioration of repeatability indicators. Summary of the invention

[0007] In view of the above technical problems existing in the prior art, the present invention proposes a long-life rotating assembly of a coaxial switch, which has a reasonable design, overcomes the shortcomings of the prior art, and has good effects.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A long-life rotating assembly of a coaxial switch comprises a rotating support frame, a reed, a reed mounting frame, a rotating support and a bearing; the rotating support frame is fixed on a lower mounting plate of an electromagnetic system of the coaxial switch; the reed is fixed on the reed mounting frame through two protrusions; the bearing is pressed into an inner hole of the rotating support through an interference fit, and at the same time, the shaft of the reed mounting frame is pressed into the inner hole of the bearing through an interference fit; the groove of the rotating support is inserted into the U-shaped groove of the rotating support frame.

[0010] Preferably, the rotating support frame has two symmetrical U-shaped grooves.

[0011] Preferably, the U-shaped groove comprises a U-shaped mouth and a bent portion, the U-shaped mouth and the bent portion are an integrally formed structure, and the bent portion is used to fix the rotation support.

[0012] Beneficial technical effects brought by the present invention:

[0013] The present invention installs the reed assembly on the rotating support frame through the bearing, which can avoid the wear problem of the matching of plastic and metal shaft holes, greatly improve the life of the rotating assembly, and at the same time improve the accuracy and stability of the force transmitted by the rotating assembly, thereby improving the life and repeatability of the coaxial switch.

[0014] The present invention uses the rolling friction of the bearing balls to replace the sliding friction between the plastic shaft and the metal hole in the original solution, thereby reducing the wear of the rotating component during movement, maintaining the consistency of the transmission force of the rotating component, and increasing the service life of the coaxial switch.

[0015] The invention uses a rotating assembly of a bearing, which has good accuracy and stability in transmitting force and a long service life; the bearing is a standard part and is inexpensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of a single-pole eight-throw coaxial switch;

[0017] Figure 2 It is a schematic diagram of the electromagnetic system;

[0018] Figure 3 It is a schematic diagram of the structure of the rotating assembly;

[0019] Figure 4 This is a schematic diagram of the reed mounting frame;

[0020] Figure 5 is a schematic diagram of the bearing structure;

[0021] Figure 6 is a schematic diagram of a rotating support structure;

[0022] Figure 7 It is a schematic diagram of the structure of the rotating support frame;

[0023] Figure 8It is a schematic diagram of the reed structure. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] like Figure 1 As shown in the figure, the coaxial switch is mainly composed of a circuit system, an electromagnetic system, and a microwave system. Figure 2 The microwave system mainly transmits force through rotating components to complete the channel switching function, which is one of the key factors affecting the life of the coaxial switch.

[0026] like Figure 3 As shown, the rotating assembly of the present invention is mainly composed of a rotating support frame (structured as shown in Figure 7 As shown), reed mounting frame (structure as Figure 4 As shown), reed (structure as Figure 8 As shown), rotation support (structure as shown Figure 6 As shown) and bearings (structure as Figure 5 The rotating support frame is fixed on the lower mounting plate of the relay assembly; the reed is fixed on the reed mounting frame through two small protrusions; the bearing is pressed into the inner hole of the rotating support through an interference fit, and at the same time, the shaft of the reed mounting frame is pressed into the inner hole of the bearing through an interference fit; then the groove of the rotating support in the above assembly is inserted into the U-shaped groove of the rotating support frame, and bent to fix the rotating support to form a rotating assembly.

[0027] When the coaxial switch is switched, the moving rod of the relay assembly hooks one side of the reed mounting frame, driving the reed mounting frame to swing back and forth within a certain angle. During the swinging process, only the ball of the bearing rolls and rubs.

[0028] By installing the reed assembly on the rotating support frame through a bearing, the wear problem of the plastic and metal shaft hole can be avoided, the life of the rotating assembly can be greatly improved, and at the same time the accuracy and stability of the force transmitted by the rotating assembly can be improved, thereby improving the life and repeatability of the coaxial switch.

[0029] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A long-life rotating assembly of a coaxial switch, characterized in that: It includes a rotating support frame, a reed, a reed mounting frame, a rotating support and a bearing; the rotating support frame is fixed on the lower mounting plate of the electromagnetic system of the coaxial switch; the reed is fixed on the reed mounting frame through two protrusions; the bearing is pressed into the inner hole of the rotating support through interference fit, and at the same time, the shaft of the reed mounting frame is pressed into the inner hole of the bearing through interference fit; the groove of the rotating support is inserted into the U-shaped groove of the rotating support frame.

2. The long-life rotating assembly of the coaxial switch according to claim 1, characterized in that: The rotating support frame has two symmetrical U-shaped grooves.

3. The long-life rotating assembly of the coaxial switch according to claim 2, characterized in that: The U-shaped groove includes a U-shaped mouth and a bent portion, the U-shaped mouth and the bent portion are an integrally formed structure, and the bent portion is used to fix the rotating support.

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