Antenna beam mechanism with vibration reduction function

Abstract

An antenna beam mechanism with a vibration reduction function belongs to the field of rail vehicle antenna beam devices, which includes an antenna beam crossbeam, two accessory component mounting hangers and four elastic vibration reduction shaft devices. The two accessory component mounting hangers are arranged at both ends of the antenna beam crossbeam in a mirror-symmetrical manner, and each accessory component mounting hanger is fixedly connected to the end of the antenna beam crossbeam through two elastic vibration reduction shaft devices. The present invention can minimize the vibration impact transmitted by the frame or wheel set and the impact caused by splashing debris on the track surface when the train is running, and then, under the premise of ensuring that the wireless communication antenna and other accessory equipment are reliably fixed, the interference of the vibration spectrum on the communication frequency signal is greatly reduced, ensuring the communication security of the wireless signal.

Description

Technical Field

[0001] The invention belongs to the field of rail vehicle antenna beam devices, and in particular relates to an antenna beam mechanism with a vibration reduction function. Background Art

[0002] The wheel flange lubrication mechanism and the near-track wireless communication antenna of the railway passenger car need to be arranged under the frame and suspended near the rail tread. During the high-speed movement of the train, the position near the track surface not only bears the strong vibration between the frame and the wheel rail, but also often suffers from the impact of a large number of splashing debris, which produces a comprehensive vertical, lateral and longitudinal impact on the wireless communication antenna and other equipment, and even interferes with the normal communication of the antenna device. Therefore, it is urgent to develop an antenna bearing device that meets the comprehensive vibration reduction and buffering functions of the three-coordinate axis system to solve the existing difficulties. Summary of the invention

[0003] In order to solve the technical problem that the existing train near-track wireless communication antenna lacks a bearing device with vibration reduction and buffering function, which causes it to not only withstand strong vibrations between the frame and the wheel-rail, but also continue to be impacted by a large number of splashing debris, thereby interfering with the normal communication of the antenna device, the present invention provides an antenna beam mechanism with vibration reduction function.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0005] An antenna beam mechanism with a vibration reduction function comprises an antenna beam crossbeam, two accessory component mounting hangers and four elastic vibration reduction rotating shaft devices. The two accessory component mounting hangers are arranged at the two ends of the antenna beam crossbeam in a mirror-symmetrical manner, and each accessory component mounting hanger is fixedly connected to the end of the antenna beam crossbeam through two elastic vibration reduction rotating shaft devices.

[0006] The main body of the antenna beam crossbeam is a quadrangular prism, and the two ends of the quadrangular prism are mirror-symmetrically provided with vibration-damping shaft mounting hole plates at the ends of the beam; a fixed hanger is provided in the middle section of the quadrangular prism of the antenna beam crossbeam; and two bolt through holes are provided on the vibration-damping shaft mounting hole plates at the ends of the beam.

[0007] The above-mentioned accessory component mounting hanger includes a main steel pipe, an end plate, an accessory connecting plate and a hanger shaft mounting hole plate. The rear end face of the end plate is sealed and welded to one end of the main steel pipe, and the accessory connecting plate is vertically fixed to the front end face of the end plate; the accessory connecting plate is parallelly welded to the outer side wall of the main steel pipe, and the accessory connecting plate is fixed to the rear end face of the end plate; the horizontally arranged hanger shaft mounting hole plate is vertically fixed to the bottom of the end plate; and two bolt through holes are provided on the hanger shaft mounting hole plate.

[0008] The above-mentioned elastic vibration damping shaft device includes bolts, gaskets, two elastic vibration dampers and nuts; each of the bolts passes through an elastic vibration damper, a bolt through hole on a vibration damping shaft mounting hole plate at the end of the beam, another elastic vibration damper, a bolt through hole on the hanger shaft mounting hole plate and a gasket in sequence from top to bottom, and the nut is threadedly connected to a corresponding lower end of the bolt.

[0009] The above-mentioned elastic vibration damper includes a rubber vibration damping ring and two rigid bushings. The rigid bushing includes an integrally formed round hole pad and a height adjustment sleeve coaxially fixed to its center. The diameter of the central through hole of the round hole pad is the same as the inner diameter of the height adjustment sleeve. The two rigid bushings are mirror-symmetrically fixed to the two ends of the rubber vibration damping ring, and the ends of the two height adjustment sleeves are butt-jointed with each other.

[0010] The axial height of the rubber vibration damping ring is twice the axial height of the height adjustment sleeve.

[0011] The above-mentioned antenna beam crossbeam can also be a truss structure with weight-reducing holes; the accessory component mounting mount can also be a mount structure that only includes an accessory connecting plate, a mount pivot mounting hole plate and two reinforcing rib plates, wherein the accessory connecting plate is parallel to the length direction of the antenna beam crossbeam, and the horizontally arranged mount pivot mounting hole plate is vertically fixed to the bottom of the accessory connecting plate; the two reinforcing rib plates are symmetrically welded to both sides of the accessory connecting plate and the mount pivot mounting hole plate; two bolt through holes are provided on the mount pivot mounting hole plate, and the connecting direction of the two bolt through holes is perpendicular to the length direction of the antenna beam crossbeam; and a steel cable hanging hole is provided on the reinforcing rib plate.

[0012] The beneficial effect of the present invention is that: the antenna beam mechanism with a vibration reduction function has two height adjustment sleeves in its elastic vibration reducer, which are mirror-imaged and butted against each other, and a butt gap left between the two is conducive to the rapid and uniform release of internal stress and the transmission and diffusion of internal energy generated by extrusion.

[0013] The two elastic shock absorbers arranged in mirror symmetry at the upper and lower ports of the same bolt through hole of the vibration-damping shaft mounting hole plate at the end of the beam can simultaneously play a comprehensive vibration reduction role in the lateral, longitudinal and vertical directions, thereby minimizing the vibration impact transmitted by the frame or wheelset and the impact caused by debris splashing from the track surface when the train is running. Under the premise of ensuring that auxiliary equipment such as wireless communication antennas are reliably fixed, the interference of the vibration spectrum on the communication frequency signal is greatly reduced, thereby ensuring the communication security of wireless signals.

[0014] In addition, the antenna beam mechanism with vibration reduction function has the advantages of simple and practical structure, easy manufacturing, low cost, and easy promotion and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional structural schematic diagram of an antenna beam mechanism with a vibration reduction function of the present invention;

[0016] Figure 2 yes Figure 1 Rear view of

[0017] Figure 3 yes Figure 1 Schematic diagram of the exploded assembly;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary component installation hanger of the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the elastic vibration-damping rotating shaft device of the present invention;

[0020] Figure 6 yes Figure 5 Schematic diagram of the exploded assembly;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the elastic vibration damper of the present invention;

[0022] Figure 8 yes Figure 7 Schematic diagram of the exploded assembly;

[0023] Fig. 9 yes Figure 2 The front view of the main view;

[0024] Fig.10 yes Fig. 9 A partial enlarged view of part I;

[0025] Fig.11 is a three-dimensional diagram of another optional structure of an antenna beam mechanism with a vibration reduction function of the present invention;

[0026] Fig.12 It is the exploded assembly diagram of 11;

[0027] Fig.13 It is a three-dimensional structural schematic diagram of an accessory component mounting hanger in another optional structure of the present invention. DETAILED DESCRIPTION

[0028] like Figures 1 to 10 As shown, the antenna beam mechanism with vibration reduction function of the present invention includes an antenna beam crossbeam 1, two accessory component mounting brackets 2 and four elastic vibration reduction rotating shaft devices 3. The two accessory component mounting brackets 2 are arranged at the two ends of the antenna beam crossbeam 1 in a mirror-symmetrical manner. Each accessory component mounting bracket 2 is fixedly connected to the end of the antenna beam crossbeam 1 through two elastic vibration reduction rotating shaft devices 3.

[0029] The main body of the antenna beam crossbeam 1 is a quadrangular prism, and the two ends of the quadrangular prism are fixedly connected with horizontally arranged crossbeam end vibration-damping shaft mounting hole plates 1-2 in a mirror-symmetrical manner; the middle section of the quadrangular prism of the antenna beam crossbeam 1 is provided with a fixed hanger 1-1 for connecting to the train frame; two bolt through holes are provided on the crossbeam end vibration-damping shaft mounting hole plates 1-2.

[0030] The accessory component mounting hanger 2 includes a main steel pipe 2-1, an end plate 2-2, an accessory connecting plate 2-3 and a hanger shaft mounting hole plate 2-4. The rear end face of the end plate 2-2 is sealed and welded to one end of the main steel pipe 2-1, and the accessory connecting plate 2-3 is vertically fixed to the front end face of the end plate 2-2; the accessory connecting plate 2-3 is parallelly welded to the outer side wall of the main steel pipe 2-1, and the accessory connecting plate 2-3 is fixed to the rear end face of the end plate 2-2; the horizontally arranged hanger shaft mounting hole plate 2-4 is vertically fixed to the bottom of the end plate 2-2; the hanger shaft mounting hole plate 2-4 is provided with two bolt through holes.

[0031] The elastic vibration damping shaft device 3 includes a bolt 3-1, a gasket 3-2, two elastic vibration dampers 3-3 and a nut 3-4; each of the bolts 3-1 passes through an elastic vibration damper 3-3, a bolt through hole on a vibration damping shaft mounting hole plate 1-2 at the end of the beam, another elastic vibration damper 3-3, a bolt through hole on the suspension shaft mounting hole plate 2-4 and a gasket 3-2 in sequence from top to bottom, and the nut 3-4 is threadedly connected to the lower end of a one-to-one corresponding bolt 3-1.

[0032] The elastic vibration damper 3-3 includes a rubber vibration damping ring 3-3-1 and two rigid bushings 3-3-2. The rigid bushing 3-3-2 includes an integrally formed round hole pad 3-3-2-1 and a height adjustment sleeve 3-3-2-2 coaxially fixed to the center thereof. The diameter of the central through hole of the round hole pad 3-3-2-1 is the same as the inner diameter of the height adjustment sleeve 3-3-2-2. The two rigid bushings 3-3-2 are fixed to the two ends of the rubber vibration damping ring 3-3-1 in a mirror-symmetrical manner, and the ends of the two height adjustment sleeves 3-3-2-2 are butt-jointed with each other.

[0033] The axial height of the rubber vibration damping ring 3-3-1 is twice the axial height of the height adjustment sleeve 3-3-2-2.

[0034] When the antenna beam mechanism with vibration reduction function of the present invention is specifically applied, the rubber vibration reduction ring 3-3-1 and the two rigid bushings 3-3-2 in the elastic vibration reducer 3-3 are fixedly connected into a whole through a vulcanization process, thereby forming a new vibration reducer structure.

[0035] like Figures 11 to 13As shown, the antenna beam crossbeam 1 can also be a truss structure with weight-reducing holes; the accessory component mounting mount 2 can also be a mount structure that only includes an accessory connecting plate 2-3, a mount shaft mounting hole plate 2-4 and two reinforcing rib plates 2-5, wherein the accessory connecting plate 2-3 is parallel to the length direction of the antenna beam crossbeam 1, and the horizontally arranged mount shaft mounting hole plate 2-4 is vertically fixed to the bottom of the accessory connecting plate 2-3; the two reinforcing rib plates 2-5 are symmetrically welded to both sides of the accessory connecting plate 2-3 and the mount shaft mounting hole plate 2-4; the mount shaft mounting hole plate 2-4 is provided with two bolt through holes, and the connection direction of the two bolt through holes is perpendicular to the length direction of the antenna beam crossbeam 1; the reinforcing rib plate 2-5 is provided with a steel cable hanging hole 2-5-1, which can be used to connect with the accessory on the antenna beam by hanging a safety steel cable to prevent the accessory from loosening due to collision or vibration and falling off the rail surface, thereby avoiding traffic accidents.

Claims

1. An antenna beam mechanism with a vibration reduction function, characterized in that: The antenna beam mechanism comprises an antenna beam crossbeam (1), two accessory component mounting hangers (2) and four elastic vibration-damping rotating shaft devices (3), wherein the two accessory component mounting hangers (2) are arranged at both ends of the antenna beam crossbeam (1) in a mirror-symmetrical manner, and each accessory component mounting hanger (2) is fixedly connected to an end of the antenna beam crossbeam (1) via two elastic vibration-damping rotating shaft devices (3); The main body of the antenna beam crossbeam (1) is a quadrangular prism, and the two ends of the quadrangular prism are provided with crossbeam end vibration reduction shaft mounting hole plates (1-2) in a mirror-symmetrical manner; the middle section of the quadrangular prism of the antenna beam crossbeam (1) is provided with a fixed hanger (1-1); and the crossbeam end vibration reduction shaft mounting hole plates (1-2) are provided with two bolt through holes.

2. The antenna beam mechanism with vibration reduction function as claimed in claim 1, characterized in that: The accessory component mounting hanger (2) comprises a main steel pipe (2-1), an end plate (2-2), an accessory connecting plate (2-3) and a hanger shaft mounting hole plate (2-4); the rear end face of the end plate (2-2) is sealed and welded to one end of the main steel pipe (2-1); the accessory connecting plate (2-3) is vertically fixed to the front end face of the end plate (2-2); the accessory connecting plate (2-3) is parallelly welded to the outer side wall of the main steel pipe (2-1), and the accessory connecting plate (2-3) is fixed to the rear end face of the end plate (2-2); the horizontally arranged hanger shaft mounting hole plate (2-4) is vertically fixed to the bottom of the end plate (2-2); and two bolt through holes are provided on the hanger shaft mounting hole plate (2-4).

3. The antenna beam mechanism with vibration reduction function as claimed in claim 2, characterized in that: The elastic vibration damping shaft device (3) comprises a bolt (3-1), a gasket (3-2), two elastic vibration dampers (3-3) and a nut (3-4); each of the bolts (3-1) passes through, from top to bottom, an elastic vibration damper (3-3), a bolt through hole on a vibration damping shaft mounting hole plate (1-2) at the end of a beam, another elastic vibration damper (3-3), a bolt through hole on a suspension shaft mounting hole plate (2-4) and the gasket (3-2); the nut (3-4) is threadedly connected to the lower end of a corresponding bolt (3-1).

4. The antenna beam mechanism with vibration reduction function as claimed in claim 3, characterized in that: The elastic vibration damper (3-3) comprises a rubber vibration damping ring (3-3-1) and two rigid bushings (3-3-2); the rigid bushing (3-3-2) comprises an integrally formed round hole pad (3-3-2-1) and a height adjustment sleeve (3-3-2-2) coaxially fixedly connected to the center thereof; the diameter of the central through hole of the round hole pad (3-3-2-1) is the same as the inner diameter of the height adjustment sleeve (3-3-2-2); the two rigid bushings (3-3-2) are fixedly connected to the two ends of the rubber vibration damping ring (3-3-1) in a mirror-symmetrical manner, and the ends of the two height adjustment sleeves (3-3-2-2) are butted against each other.

5. The antenna beam mechanism with vibration reduction function as claimed in claim 4, characterized in that: The axial height of the rubber vibration damping ring (3-3-1) is twice the axial height of the height adjustment sleeve (3-3-2-2).

6. The antenna beam mechanism with vibration reduction function as claimed in claim 1, characterized in that: The antenna beam crossbeam (1) is a truss structure with a weight-reducing hole; the accessory component mounting hanger (2) is a hanger structure that only includes an accessory connecting plate (2-3), a hanger shaft mounting hole plate (2-4) and two reinforcing rib plates (2-5), wherein the accessory connecting plate (2-3) is parallel to the length direction of the antenna beam crossbeam (1), and the horizontally arranged hanger shaft mounting hole plate (2-4) is vertically fixed to the bottom of the accessory connecting plate (2-3); the two reinforcing rib plates (2-5) are symmetrically welded to both sides of the accessory connecting plate (2-3) and the hanger shaft mounting hole plate (2-4); two bolt through holes are provided on the hanger shaft mounting hole plate (2-4), and the connecting line direction of the two bolt through holes is perpendicular to the length direction of the antenna beam crossbeam (1); and a steel cable hanging hole (2-5-1) is provided on the reinforcing rib plate (2-5).

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