Contact net elastic support testing device
By setting up a vibrator under the contact line, the vibration effect of the elastic bearing during actual operation is simulated, and the problem of the inability to accurately obtain the stress condition of the elastic bearing in the prior art is solved, and a high-accurate detection effect is achieved.
Patent Information
- Application Number
- CN202421896448.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing contact network elastic bearing test device cannot accurately obtain the stress of the elastic bearing in vibration conditions, resulting in inaccurate data.
A contact net elastic bearing test device is designed. By setting a vibrator under the contact line, the vibration effect of the elastic bearing is simulated during actual operation, so as to accurately obtain the stress of the elastic bearing under the vibration conditions.
It realizes accurate acquisition of the stress conditions of the elastic support under vibration conditions, improving data accuracy and detection efficiency.
Smart Images
Figure CN222850256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of railway contact network, in particular to a contact network elastic support test device. Background Art
[0002] The contact network elastic support is mainly used for positioning and supporting the contact network in the tunnel of the overhead contact network of urban rail transit and in the low-headroom tunnel. It can make the locomotive pantograph contact the contact network wire smoothly through good elastic compensation performance, and at the same time, it can make the locomotive obtain electric energy smoothly, thus ensuring the normal operation of the subway vehicle.
[0003] Elastic supports are generally installed on the supporting structure of the contact network, such as pillars, wrist arms, etc., to play a supporting and buffering role, helping to reduce the vibration and impact of the contact network when a train passes, ensuring the stability of the contact network and good current-collecting performance, thereby ensuring the safe and stable power supply of electric locomotives.
[0004] According to technical requirements, elastic bearings need to undergo vibration tests. However, existing test equipment has certain differences from actual operating conditions and installation positions. Therefore, it is impossible to obtain more accurate data such as the stress conditions of the elastic bearings under vibration conditions. Utility Model Content
[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a contact network elastic support test device which can effectively obtain the stress condition of the elastic support under vibration conditions.
[0006] The utility model solves the technical problem by adopting the following technical solution: a contact network elastic support test device, comprising a vertically arranged H-shaped steel column, a crossbeam is fixed on the side of the H-shaped steel column, an angle-adjustable connecting plate is installed at the front end of the crossbeam, a connecting square tube perpendicular to the connecting plate is fixed at the bottom of the connecting plate, at least two elastic supports are arranged under the connecting square tube, and the connecting square tube is connected to the elastic support by a connecting block;
[0007] The bottom surface of the elastic support is connected to a positioning sleeve, and a contact line is connected between the bottom ends of the positioning sleeves. A vibrator that simulates the vibration effect during the actual operation of the contact network is provided below the contact line, and the vibrating head of the vibrator is in close contact with the contact line.
[0008] Specifically, the crossbeam comprises a horizontal crossbeam and an oblique crossbeam located above the horizontal crossbeam, and two connecting plates are respectively installed on the two side surfaces of the front end of the horizontal crossbeam and the oblique crossbeam.
[0009] Furthermore, a waist-shaped hole fixedly connected to the oblique crossbeam is provided on the upper portion of the connecting plate, and a plurality of adjustment holes fixedly connected to the horizontal crossbeam are provided on the lower portion of the connecting plate.
[0010] Furthermore, four fixed square tubes are fixed at intervals on the bottom surface of the connecting square tube, the front and rear of the bottom surface of the fixed square tube are respectively fixedly connected with connecting blocks, and the elastic support is fixed between the bottoms of the connecting blocks.
[0011] Preferably, a positioning wire clamp for clamping the contact wire is installed at the bottom end of the positioning sleeve.
[0012] The beneficial effect of the utility model is that the utility model sets a vibration machine under the contact line and uses the vibration generated by the vibration machine to simulate the vibration effect of the elastic support during actual operation, so as to accurately obtain data such as the force condition of the elastic support under vibration conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0014] Figure 1 It is a structural schematic diagram of the utility model.
[0015] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0016] In the figure: 1. H-shaped steel column, 2-1. horizontal beam, 2-2. inclined beam, 3. connecting plate, 3-1. waist-shaped hole, 3-2. adjustment hole, 4. connecting square tube, 5. elastic support, 6. connecting block, 7. positioning sleeve 8. contact wire, 9. vibrator, 10. fixed square tube, 11. positioning wire clamp. DETAILED DESCRIPTION
[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0018] like Figure 1 , Figure 2 A contact network elastic support test device shown in the figure comprises a vertically arranged H-shaped steel column 1, on the side of which a horizontal beam 2-1 and an oblique beam 2-2 are respectively fixed through fixing plates, wherein the oblique beam 2-2 is located above the horizontal beam 2-1, and connecting plates 3 are respectively provided on the two side surfaces of the front ends of the horizontal beam 2-1 and the oblique beam 2-2; the connecting plates 3 are in the shape of a right-angled triangle, and a waist-shaped hole 3-1 is opened on the upper part of the connecting plates 3, and a plurality of adjustment holes 3-2 are opened on the lower part of the connecting plates 3, wherein the upper parts of two connecting plates 3 are bolted to the oblique beam 2-2 through the waist-shaped holes 3-1, and the lower parts of the two connecting plates 3 are bolted to the horizontal beam 2-1 through the adjustment holes 3-2, and the angle position of the entire device can be adjusted by coordinating the waist-shaped holes 3-1 with the adjustment holes 3-2.
[0019] A connecting square tube 4 perpendicular to the connecting plates 3 is passed through and fixed between the bottoms of the two connecting plates 3. Two fixed square tubes 10 are respectively provided on the bottom surfaces of the connecting square tubes 4 on both sides of the connecting plates 3. The four fixed square tubes 10 are arranged at intervals, and an elastic support 5 is provided under each fixed square tube 10.
[0020] The front and rear positions of the bottom of the fixed square tube 10 are respectively fixedly connected with connecting blocks 6 , and the elastic support 5 is fixed between the bottoms of the connecting blocks 6 .
[0021] The bottom surface of each elastic support 5 is connected to a positioning sleeve 7, and a positioning wire clamp 11 is installed at the bottom end of the positioning sleeve 7. The contact wire 8 of the contact network is clamped between the positioning wire clamps 11. A vibrator 9 is provided below the contact wire 8 to simulate the vibration effect of the actual operation of the contact network, and the vibration head of the vibrator 9 is in close contact with the contact wire 8.
[0022] The utility model sets a vibrator 9 under the contact line 8, and uses the vibration generated by the vibrator 9 to simulate the vibration effect of the elastic support 5 during the actual operation, so as to accurately obtain the data such as the force of the elastic support 5 under the vibration condition. And through the cooperation of the waist-shaped hole 3-1 and the adjustment hole 3-2 on the connecting plate 3, the installation angle of the whole device can be adjusted, and multiple elastic supports 5 can be set on the connecting square tube 4 for simultaneous testing, which improves the detection efficiency.
[0023] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A contact network elastic support test device, comprising a vertically arranged H-shaped steel column (1), characterized in that: A crossbeam is fixed on the side of the H-shaped steel column (1), and an angle-adjustable connecting plate (3) is installed at the front end of the crossbeam. A connecting square tube (4) perpendicular to the connecting plate (3) is fixed at the bottom of the connecting plate (3), and at least two elastic supports (5) are arranged below the connecting square tube (4). The connecting square tube (4) and the elastic supports (5) are connected via a connecting block (6); The bottom surface of the elastic support (5) is connected to a positioning sleeve (7), the bottom ends of the positioning sleeve (7) are connected to a contact line (8), a vibrator (9) simulating the vibration effect during the actual operation of the contact network is provided below the contact line (8), and the vibration head of the vibrator (9) is in close contact with the contact line (8).
2. The contact network elastic support test device according to claim 1, characterized in that: The crossbeam comprises a horizontal crossbeam (2-1) and an oblique crossbeam (2-2) located above the horizontal crossbeam (2-1), and two connecting plates (3) are respectively installed on the two side surfaces of the front ends of the horizontal crossbeam (2-1) and the oblique crossbeam (2-2).
3. The contact network elastic support test device according to claim 2, characterized in that: The upper part of the connecting plate (3) is provided with a waist-shaped hole (3-1) fixedly connected to the oblique crossbeam (2-2), and the lower part of the connecting plate (3) is provided with a plurality of adjustment holes (3-2) fixedly connected to the horizontal crossbeam (2-1).
4. The contact network elastic support test device according to claim 1, characterized in that: Four fixed square tubes (10) are fixed at intervals on the bottom surface of the connecting square tube (4), and the front and rear bottom surfaces of the fixed square tube (10) are respectively fixedly connected with connecting blocks (6), and the elastic support (5) is fixed between the bottoms of the connecting blocks (6).
5. The contact network elastic support test device according to claim 1, characterized in that: A positioning wire clamp (11) for clamping the contact wire (8) is installed at the bottom end of the positioning sleeve (7).