Spring support beam strength test simulation device

Abstract

The present invention discloses a spring support beam strength test simulation device, which includes a support assembly, a support beam, a hanger beam and a hanger rod; the support assembly is fixedly mounted on the top end of the support beam and is used to support the bolster of the rail vehicle bogie; the hanger beam is fixedly mounted on the bottom end of the support beam; the hanger rod is rotatably mounted on the hanger beam, and the top end of the hanger rod can be rotatably mounted on the frame of the rail vehicle bogie. When in use, the bolster is placed on the support assembly, and the hanger rod is rotatably mounted on the frame of the rail vehicle bogie. The vertical load of the bolster is transmitted to the frame through the support assembly, the support beam and the hanger rod; and after releasing the lateral shaking freedom of the support beam, the bolster can be shaken laterally to ensure that the lateral load on the bolster can also be transmitted to the frame, thereby realistically simulating the stress conditions of the bolster and the frame. The present invention realizes the test of the bolster and the frame with only one experimental simulation device, shortens the test cycle of the bolster and the frame, and reduces the test cost.

Description

Technical Field

[0001] The invention relates to the technical field of joist strength testing devices, in particular to a spring joist strength testing simulation device. Background Art

[0002] At present, the static strength test of the steel structure of the rail vehicle bogie usually loads the bolster and frame separately. Therefore, two experiments need to be carried out simultaneously to verify the strength of the bolster and frame respectively. The test cycle is long and two test devices need to be manufactured, which results in high test costs.

[0003] Therefore, how to shorten the test cycle of the bolster and the frame and reduce the test cost is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a spring support beam strength test simulation device that can shorten the test cycle of the bolster and frame and reduce the test cost.

[0005] In order to achieve the above object, the present invention provides the following solutions:

[0006] A spring support beam strength test simulation device is used for static strength testing of a railway vehicle bogie steel structure. The spring support beam strength test simulation device comprises a support assembly, a support beam, a suspension beam and a suspension rod;

[0007] The support assembly is fixedly mounted on the top end of the joist and is used to support the bolster of the rail vehicle bogie;

[0008] The hanging beam is fixedly mounted on the bottom end of the supporting beam;

[0009] The suspension rod is rotatably mounted on the suspension beam, and the top end of the suspension rod can be rotatably mounted on the frame of the rail vehicle bogie.

[0010] In a specific embodiment, the support assembly includes a support base and a top plate;

[0011] The support seat is fixedly mounted on the top end of the support beam, and the top plate is fixedly mounted on the top end of the support seat.

[0012] In another specific embodiment, the top plate is connected to the support seat by a concentric interference fit.

[0013] In another specific embodiment, the support base and the joist are detachably connected by screws.

[0014] In another specific embodiment, a positioning groove is provided at the top end of the hanging beam, and the supporting beam is installed in the positioning groove.

[0015] In another specific embodiment, the spring support beam strength test simulation device further includes a positioning pin;

[0016] The joist is installed in the positioning groove through the positioning pin.

[0017] In another specific embodiment, the spring support beam strength test simulation device further comprises a cross shaft;

[0018] The cross shaft is installed on both sides of the suspension beam, and the suspension rod is rotatably connected to the cross shaft.

[0019] In another specific embodiment, the spring support beam strength test simulation device further comprises a pin;

[0020] The pin is installed on the top end of the boom, and the pin can be rotatably connected to the frame.

[0021] In another specific embodiment, the surface of the pin is coated with a lubricating layer.

[0022] In another embodiment, the lubricating layer is a grease layer.

[0023] The various embodiments according to the present invention can be arbitrarily combined as needed. The embodiments obtained after these combinations are also within the scope of the present invention and are part of the specific implementation methods of the present invention.

[0024] Without being limited by theory, it can be seen from the above disclosure that the spring joist strength test simulation device disclosed herein, when in use, places the bolster of a rail vehicle bogie on a support assembly, and rotatably mounts a hanger on the frame of the rail vehicle bogie. The vertical load of the bolster is transmitted to the frame via the support assembly, the joist, and the hanger. Furthermore, after releasing the joist's lateral rocking freedom, the bolster is allowed to rock laterally, ensuring that the lateral load on the bolster is also transmitted to the frame, thereby realistically simulating the stress conditions on the bolster and frame. The present invention utilizes a single experimental simulation device to test both the bolster and frame, shortening the testing cycle and reducing testing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a spring support beam strength test simulation device provided by the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of a left-side sectional structure;

[0028] Figure 3 for Figure 1 Schematic diagram of the main structure.

[0029] in, Figure 1-3 middle:

[0030] Support beam 1, hanger 2, support base 3, top plate 4, hanging beam 5, hanger pin 6, positioning pin 7, screw 8. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Example 1

[0033] like Figure 1-3 As shown, the present invention discloses a spring support beam strength test simulation device, which is used for static strength test of railway vehicle bogie steel structure.

[0034] The spring joist strength test simulation device includes a support assembly, a joist 1, a hanger beam 5, and a hanger rod 2. The support assembly is fixedly mounted on the top of the joist 1 to support the bolster of the rail vehicle bogie. Specifically, the support assembly can be detachably connected to the top of the joist 1, for example, by screws 8 or the like, or by snaps or the like. The support assembly can also be directly welded to the top of the joist 1. Any connection method that can secure the support assembly to the top of the joist 1 falls within the scope of protection of the present invention.

[0035] The hanging beam 5 is fixedly mounted on the bottom end of the supporting beam 1 . Specifically, the hanging beam 5 is a hollow beam.

[0036] The boom 2 is rotatably mounted on the suspension beam 5, and the top end of the boom 2 can be rotatably mounted on the frame of the rail vehicle bogie.

[0037] To stabilize the connection between the suspender rods 2 and the suspender beam 5, the suspender rods 2 are symmetrically arranged on both sides of the suspender beam 5. To further achieve a stable connection between the suspender rods 2 and the suspender beam 5, the number of suspender rods 2 is at least four, and they are symmetrically arranged in pairs on both sides of the suspender beam 5. The specific number of suspender rods 2 can be increased or decreased as needed.

[0038] The spring joist strength test simulation device disclosed in the present invention, when in use, places the bolster of a rail vehicle bogie on a support assembly, and rotatably mounts a hanger 2 on the bogie frame. The vertical load of the bolster is transmitted to the frame via the support assembly, joist 1, and hanger 2. After releasing the lateral swing freedom of joist 1, the bolster is allowed to swing laterally, ensuring that the lateral load on the bolster is also transmitted to the frame, realistically simulating the stress conditions on the bolster and frame. The present invention utilizes a single experimental simulation device to test both the bolster and frame, shortening the testing cycle and reducing testing costs.

[0039] In some embodiments, the support assembly includes a support base 3 and a top plate 4. The support base 3 is fixedly mounted on the top of the joist 1, and the top plate 4 is fixedly mounted on the top of the support base 3. The support base 3 is connected to the joist 1 to simulate the secondary spring of the bogie.

[0040] To facilitate assembly and disassembly of the top plate 4 and support base 3, the top plate 4 and support base 3 are connected with a concentric interference fit. It should be noted that concentricity refers to the alignment of the axis lines of the top plate 4 and support base 3. Specifically, the top plate 4 is a circular plate with a connecting post at its bottom end. The support base 3 has an internal hole formed within it, and the connecting post has an interference fit with the internal hole.

[0041] There is no limit to the number of support components. In order to achieve stable support for the structure, take the number of support components as 2 as an example. Figure 1 shown.

[0042] In order to prevent the components from falling when the bolster is shaken laterally, the present invention discloses a positioning hole is opened on the top plate 4, and a connector is provided on the component to be positioned and connected with the positioning hole. Specifically, the connector is in the shape of a rod and inserted into the positioning hole.

[0043] In some embodiments, the support base 3 is detachably connected to the joist 1 by screws 8. Specifically, the support base 3 is cylindrical, and an annular ridge is provided at the bottom end of the support base 3, and a mounting hole is provided on the annular ridge, through which the screws 8 are connected to the joist 1.

[0044] To facilitate the positioning and installation of the suspension beam 5, the present invention discloses a positioning slot formed at the top of the suspension beam 5, into which the joist 1 is mounted. Specifically, there are two suspension beams 5, supported at both ends of the joist 1. It should be noted that the number of suspension beams 5 is not limited to two and can be increased or decreased as needed.

[0045] Furthermore, the spring joist strength test simulator also includes a locating pin 7, which allows the joist 1 to be mounted within the locating slot, facilitating assembly and disassembly. Specifically, the locating slot has through-slots on either side, facilitating placement of the joist 1 within the locating slot of the suspension beam 5. Once properly positioned, the locating pin 7 secures the joist 1 to the suspension beam 5, limiting both lateral and longitudinal relative movement.

[0046] In some embodiments, the spring support beam strength test simulation device further includes a cross shaft, which is fixed to both sides of the suspension beam 5, and the suspension rod 2 is rotatably connected to the cross shaft. In order to increase the connection strength between the cross shaft and the suspension beam 5, the cross shaft is integrally formed with the suspension beam 5.

[0047] In some embodiments, the spring support beam strength test simulation device further includes a pin 6 , which is mounted on the top end of the suspension rod 2 , and the pin 6 can be rotatably connected to the frame.

[0048] In order to facilitate the rotation of the pin 6, the present invention discloses that the surface of the pin 6 is coated with a lubricating layer. It should be noted that the lubricating layer can be made of any lubricating material, for example, the lubricating layer is a grease layer.

[0049] The present invention uses a spring support beam strength test simulation device to accurately transfer the load on the bolster to the frame. The loading of the bolster and the frame is closer to the actual stress conditions. At the same time, the strength test of the frame and the strength test of the bolster are combined into one test, which greatly shortens the test cycle and reduces the processing of other test devices, thereby reducing the test cost.

[0050] In the description of the present invention, it should be understood that the terms "top end", "bottom end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention.

[0051] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to be embodied in the widest possible manner consistent with the principles and inventive features disclosed herein.

Claims

1. A spring support beam strength test simulation device for static strength test of railway vehicle bogie steel structure, characterized in that: The spring support beam strength test simulation device includes a support assembly, a support beam, a suspension beam and a suspension rod; The support assembly is fixedly mounted on the top end of the joist and is used to support the bolster of the rail vehicle bogie; The hanging beam is fixedly mounted on the bottom end of the supporting beam; The suspension rod is rotatably mounted on the suspension beam, and the top end of the suspension rod can be rotatably mounted on the frame of the rail vehicle bogie; When the spring joist strength test simulation device is used, the bolster of the rail vehicle bogie is placed on the support assembly, and the hanger is rotatably mounted on the frame of the rail vehicle bogie. The vertical load of the bolster is transmitted to the frame through the support assembly, the joist, and the hanger. After releasing the lateral shaking freedom of the joist, the bolster is caused to shake laterally to ensure that the lateral load on the bolster is transmitted to the frame, so as to realistically simulate the stress conditions of the bolster and the frame.

2. The spring support beam strength test simulation device according to claim 1, characterized in that: The support assembly includes a support base and a top plate; The support seat is fixedly mounted on the top end of the support beam, and the top plate is fixedly mounted on the top end of the support seat.

3. The spring support beam strength test simulation device according to claim 2, characterized in that: The top plate is connected to the support seat by interference fit.

4. The spring support beam strength test simulation device according to claim 2, characterized in that: The support seat and the support beam are detachably connected via screws.

5. The spring support beam strength test simulation device according to claim 1, characterized in that: A positioning groove is provided on the top end of the hanging beam, and the supporting beam is installed in the positioning groove.

6. The spring support beam strength test simulation device according to claim 5, characterized in that: Also included are dowel pins; The joist is installed in the positioning groove through the positioning pin.

7. The spring support beam strength test simulation device according to claim 1, characterized in that: Also includes a cross axis; The cross shaft is installed on both sides of the suspension beam, and the suspension rod is rotatably connected to the cross shaft.

8. The spring support beam strength test simulation device according to any one of claims 1 to 7, characterized in that: Also includes a pin; The pin is installed on the top end of the boom, and the pin can be rotatably connected to the frame.

9. The spring support beam strength test simulation device according to claim 8, characterized in that: The surface of the pin is coated with a lubricating layer.

10. The spring support beam strength test simulation device according to claim 9, characterized in that: The lubricating layer is a grease layer.

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