CN112014130A - Spring joist strength test simulation device - Google Patents
Spring joist strength test simulation device Download PDFInfo
- Publication number
- CN112014130A CN112014130A CN202011008452.6A CN202011008452A CN112014130A CN 112014130 A CN112014130 A CN 112014130A CN 202011008452 A CN202011008452 A CN 202011008452A CN 112014130 A CN112014130 A CN 112014130A
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- China
- Prior art keywords
- joist
- strength test
- simulation device
- spring
- test simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a spring joist strength test simulation device which comprises a support assembly, a joist, a hanging beam and a hanging rod, wherein the joist is arranged on the support assembly; the support assembly is fixedly arranged on the top end of the joist and used for supporting a swing bolster of a railway vehicle bogie; the hanging beam is fixedly arranged on the bottom end of the joist; the boom is rotatably mounted on a suspension beam and the top end of the boom is rotatably mounted on the frame of the railway car truck. When the swing bolster supporting device is used, the swing bolster is arranged on the supporting assembly, the suspension rod is rotatably arranged on a framework of a railway vehicle bogie, and the vertical load of the swing bolster is transferred to the framework through the supporting assembly, the joist and the suspension rod; and after the transverse swinging freedom degree of the joist is released, the swing bolster can transversely swing, so that the transverse load on the swing bolster can be transmitted to the framework, and the stress condition of the swing bolster and the framework is truly simulated. The invention realizes the test of the swing bolster and the framework by only using one experimental simulation device, shortens the test period of the swing bolster and the framework and reduces the test cost.
Description
Technical Field
The invention relates to the technical field of joist strength test devices, in particular to a spring joist strength test simulation device.
Background
At present, the static strength test of rail vehicle bogie steel construction is usually to separate the loading with bolster and framework, consequently, need carry out two experiments simultaneously and verify the intensity of bolster and framework respectively, and experimental cycle is long, and need make two kinds of test devices, and the test cost is high.
Therefore, how to shorten the test period of the bolster and the frame and reduce the test cost is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a spring joist strength test simulator, which can shorten the test period of the bolster and the frame and reduce the test cost.
In order to achieve the above object, the present invention provides the following solutions:
a spring joist strength test simulation device is used for a static strength test of a steel structure of a railway vehicle bogie and comprises a support assembly, a joist, a hanging beam and a hanging rod;
the support assembly is fixedly arranged on the top end of the joist and is used for supporting a swing bolster of the railway vehicle bogie;
the hanging beam is fixedly arranged on the bottom end of the joist;
the boom is rotatably mounted on the suspension beam, and a top end of the boom is rotatably mounted on a frame of the railway vehicle bogie.
In a particular embodiment, the support assembly includes a support base and a top plate;
the supporting seat is fixedly installed at the top end of the joist, and the top plate is fixedly installed at the top end of the supporting seat.
In another specific embodiment, the top plate is connected with the supporting seat in a centering interference fit manner.
In another specific embodiment, the support seat is detachably connected with the joist through screws.
In another specific embodiment, the top end of the hanging beam is provided with a positioning groove, and the joist is arranged in the positioning groove.
In another specific embodiment, the spring joist strength test simulation device further comprises a positioning pin;
the joist is installed in the constant head tank through the locating pin.
In another specific embodiment, the spring joist strength test simulation device further comprises a cross shaft;
the cross shafts are arranged on two sides of the hanging beam, and the hanging rods are rotatably connected with the cross shafts.
In another specific embodiment, the spring joist strength test simulation device further comprises a pin;
the pin shaft is arranged at the top end of the hanging rod and can be rotatably connected with the framework.
In another embodiment, the surface of the pin is coated with a lubricating layer.
In another embodiment, the lubricating layer is a lubricating grease layer.
The various embodiments according to the invention can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the invention and are part of the specific embodiments of the invention.
Without being limited to any theory, it can be seen from the above disclosure that, in the spring joist strength test simulation device disclosed by the invention, when in use, the swing bolster of the railway vehicle bogie is arranged on the supporting component, the suspension rod is rotatably arranged on the framework of the railway vehicle bogie, and the vertical load of the swing bolster is transferred to the framework through the supporting component, the joist and the suspension rod; and after the transverse swinging freedom degree of the joist is released, the swing bolster can transversely swing, so that the transverse load on the swing bolster can be transmitted to the framework, and the stress condition of the swing bolster and the framework is truly simulated. The invention realizes the test of the swing bolster and the framework by only using one experimental simulation device, shortens the test period of the swing bolster and the framework and reduces the test cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a spring joist strength test simulation device provided by the invention;
FIG. 2 is a schematic left sectional view of the structure of FIG. 1;
fig. 3 is a schematic front view of the structure of fig. 1.
Wherein, in fig. 1-3:
joist 1, jib 2, supporting seat 3, roof 4, hanging beam 5, jib round pin axle 6, locating pin 7, screw 8.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in figures 1-3, the invention discloses a spring joist strength test simulation device, which is used for a static strength test of a steel structure of a railway vehicle bogie.
The spring joist strength test simulation device comprises a supporting component, a joist 1, a hanging beam 5 and a hanging rod 2, wherein the supporting component is fixedly installed on the top end of the joist 1 and used for supporting a swing bolster of a railway vehicle bogie. Specifically, the supporting assembly is detachably connected to the top end of the joist 1, for example, the supporting assembly is mounted on the top end of the joist 1 through a screw 8 or the like, or can be clamped on the top end of the joist 1 through a buckle or the like; the support component can also be welded directly on the top end of the joist 1, and the connection mode that the support component can be fixed on the top end of the joist 1 is within the protection scope of the invention.
The hanging beam 5 is fixedly arranged on the bottom end of the joist 1, and specifically, the hanging beam 5 is a hollow beam.
The boom 2 is rotatably mounted on a suspension beam 5 and the top end of the boom 2 can be rotatably mounted on the frame of a railway vehicle bogie.
In order to stabilize the suspension of the suspension rod 2 to the suspension beam 5, the suspension rod 2 is symmetrically distributed on both sides of the suspension beam 5. In order to further realize the stable suspension of the suspension beam 5 by the suspension rods 2, the number of the suspension rods 2 is at least 4, and the suspension rods are symmetrically arranged on two sides of the suspension beam 5 in pairs. The number of the specific suspenders 2 can be increased or decreased according to the needs.
When the spring joist strength test simulation device disclosed by the invention is used, a swing bolster of a railway vehicle bogie is arranged on a support assembly, a suspender 2 is rotatably arranged on a framework of the railway vehicle bogie, and the vertical load of the swing bolster is transferred to the framework through the support assembly, the joist 1 and the suspender 2; and after the transverse swinging freedom degree of the joist 1 is released, the swing bolster can transversely swing, so that the transverse load on the swing bolster can be transmitted to the framework, and the stress condition of the swing bolster and the framework is truly simulated. The invention realizes the test of the swing bolster and the framework by only using one experimental simulation device, shortens the test period of the swing bolster and the framework and reduces the test cost.
In some embodiments, the support assembly comprises a support base 3 and a top plate 4, the support base 3 being fixedly mounted on top of the joist 1 and the top plate 4 being fixedly mounted on top of the support base 3. The supporting seat 3 is connected with the joist 1 and is used for simulating a secondary spring of the bogie.
In order to facilitate the disassembly and assembly of the top plate 4 and the supporting seat 3, the top plate 4 is connected with the supporting seat 3 in a centering interference fit manner. The centering means that the axes of the top plate 4 and the support base 3 coincide with each other. Specifically, roof 4 is the plectane, and the bottom of roof 4 is provided with the spliced pole, and the hole has been seted up to supporting seat 3 inside, spliced pole and hole interference fit.
The number of the support assemblies is not limited, and in order to realize stable support of the framework, the number of the support assemblies is 2, as shown in fig. 1.
In order to avoid the falling of the components when the swing bolster transversely swings, the invention discloses that a positioning hole is formed in a top plate 4, and a connecting piece which is connected with the positioning hole in a positioning mode is arranged on the components. Specifically, the connecting piece is in a rod shape and the like and is inserted into the positioning hole.
In some embodiments, the support base 3 is removably connected to the joist 1 by means of screws 8. Specifically, the supporting seat 3 is cylindrical, an annular convex edge is arranged at the bottom end of the supporting seat 3, a mounting hole is formed in the annular convex edge, and the screw 8 is connected with the joist 1 through the mounting hole.
In order to facilitate the positioning and installation of the hanging beam 5, the invention discloses that the top end of the hanging beam 5 is provided with a positioning groove, and the joist 1 is installed in the positioning groove. Specifically, the number of the suspension beams 5 is 2, and the suspension beams are supported at both ends of the joist 1. The number of the suspension beams 5 is not limited to 2, and may be increased or decreased as necessary.
Further, the spring joist strength test simulation device further comprises a positioning pin 7, and the joist 1 is installed in the positioning groove through the positioning pin 7, so that the joist is convenient to disassemble and assemble. Specifically, the two sides of the positioning groove are provided with through grooves, so that the joist 1 can be conveniently placed in the positioning groove of the hanging beam 5, and after the positioning groove is adjusted, the joist 1 and the hanging beam 5 are fixed through the positioning pin 7, and the transverse and longitudinal relative movement between the joist 1 and the hanging beam 5 is limited.
In some embodiments, the spring joist strength test simulation device further comprises a cross shaft, the cross shafts are respectively fixed on two sides of the hanging beam 5, and the hanging rod 2 is rotatably connected with the cross shaft. In order to increase the connection strength of the spider and the hanging beam 5, the spider and the hanging beam 5 are integrally connected.
In some embodiments, the spring joist strength test simulation device further comprises a pin 6, the pin 6 is mounted at the top end of the boom 2, and the pin 6 can be rotatably connected with the frame.
In order to facilitate the rotation of the pin shaft 6, the invention discloses that the surface of the pin shaft 6 is coated with a lubricating layer. The lubricating layer may be made of any lubricating material, and for example, the lubricating layer may be a lubricating grease layer.
The invention can accurately transmit the load on the swing bolster to the framework through the spring joist strength test simulation device, the load of the swing bolster and the framework is closer to the real stress condition, and simultaneously the strength test of the framework and the strength test of the swing bolster are combined into one test, thereby greatly shortening the test period, simultaneously reducing the processing of other test devices and further reducing the test cost.
In the description of the present invention, it is to be understood that the terms "top end", "bottom end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims (10)
1. A spring joist strength test simulation device is used for a static strength test of a steel structure of a railway vehicle bogie and is characterized by comprising a support assembly, a joist, a hanging beam and a hanging rod;
the support assembly is fixedly arranged on the top end of the joist and is used for supporting a swing bolster of the railway vehicle bogie;
the hanging beam is fixedly arranged on the bottom end of the joist;
the boom is rotatably mounted on the suspension beam, and a top end of the boom is rotatably mounted on a frame of the railway vehicle bogie.
2. The spring joist strength test simulation device of claim 1, wherein the support assembly comprises a support base and a top plate;
the supporting seat is fixedly installed at the top end of the joist, and the top plate is fixedly installed at the top end of the supporting seat.
3. The spring joist strength test simulation device of claim 2, wherein the top plate is connected with the support seat in a centered interference fit.
4. The spring joist strength test simulation device of claim 2, wherein the support base is detachably connected with the joist by a screw.
5. The spring joist strength test simulation device of claim 1, wherein a positioning slot is provided at the top end of the hanging beam, and the joist is mounted in the positioning slot.
6. The spring joist strength test simulation device of claim 5, further comprising a locating pin;
the joist is installed in the constant head tank through the locating pin.
7. The spring joist strength test simulation device of claim 1, further comprising a cross shaft;
the cross shafts are arranged on two sides of the hanging beam, and the hanging rods are rotatably connected with the cross shafts.
8. The spring joist strength test simulation device according to any one of claims 1 to 7, further comprising a pin;
the pin shaft is arranged at the top end of the hanging rod and can be rotatably connected with the framework.
9. The spring joist strength test simulation device of claim 8, wherein the surface of the pin shaft is coated with a lubricating layer.
10. The spring joist strength test simulation device of claim 9, wherein the lubricating layer is a lubricating grease layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008452.6A CN112014130A (en) | 2020-09-23 | 2020-09-23 | Spring joist strength test simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008452.6A CN112014130A (en) | 2020-09-23 | 2020-09-23 | Spring joist strength test simulation device |
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| Publication Number | Publication Date |
|---|---|
| CN112014130A true CN112014130A (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011008452.6A Pending CN112014130A (en) | 2020-09-23 | 2020-09-23 | Spring joist strength test simulation device |
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| CN (1) | CN112014130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506359A (en) * | 2022-01-26 | 2022-05-17 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
-
2020
- 2020-09-23 CN CN202011008452.6A patent/CN112014130A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114506359A (en) * | 2022-01-26 | 2022-05-17 | 中车唐山机车车辆有限公司 | Bogie and rail vehicle |
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