CN112179764A - Loading device for coupler tension-compression integrated test - Google Patents
Loading device for coupler tension-compression integrated test Download PDFInfo
- Publication number
- CN112179764A CN112179764A CN201910604122.4A CN201910604122A CN112179764A CN 112179764 A CN112179764 A CN 112179764A CN 201910604122 A CN201910604122 A CN 201910604122A CN 112179764 A CN112179764 A CN 112179764A
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- loading
- sleeve
- end part
- coupler
- loading device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
Abstract
The invention provides a loading device for a coupler tension and compression integrated test, which comprises: the loading seat comprises a base plate and a cylinder arranged on the base plate, wherein the base plate is provided with a mounting hole, the cylinder is provided with a first pin hole, and the top end surface of the cylinder is an arc concave surface; the first end part of the loading rod is provided with a second pin hole and an arc convex surface matched with the arc concave surface, and the second end part of the loading rod is provided with an external thread; the loading rod is connected with the cylinder through the first pin hole and the second round pin, and the second opening is extended along the axial direction of the sleeve, so that the loading rod can move along the axial direction of the sleeve and the arc convex surface of the loading rod can be abutted against and separated from the arc concave surface of the cylinder; and the connecting nut is used for connecting the second end part of the loading rod and the loading end of the test bed and is a split nut.
Description
Technical Field
The invention belongs to the field of static strength tests of railway vehicle bodies, and particularly relates to a loading device for a coupler tension-compression integrated test.
Background
At present, when the tensile and compressive load test working conditions of the coupler of the railway vehicle body static strength test are completed, a one-time test loading device is designed according to different coupler loading areas in each test to realize the load application of the tensile and compressive tests of the coupler, and the devices can not be adjusted according to different coupler loading areas and can not meet the requirements of the tensile and compressive load test working conditions of the couplers of different vehicle types. Therefore, a pair of stretching and compressing tools needs to be newly manufactured during the test of each vehicle type, so that the test cost is increased, the tool replacement time is prolonged, and the working efficiency is very low.
Disclosure of Invention
Therefore, the invention aims to provide the loading device for the coupler tension-compression integrated test aiming at the defects in the prior art, and the loading device is suitable for coupler tension and compression load tests of different car body static strength tests with different coupler loading areas, can reduce the test cost and improve the working efficiency and the utilization rate of a test bed.
The purpose of the invention is realized by the following technical scheme.
The invention provides a loading device for a coupler tension and compression integrated test, wherein the loading device comprises:
the loading seat comprises a base plate and a cylinder arranged on the base plate, a mounting hole used for being mounted with the coupler mounting seat is formed in the base plate, a first pin hole is formed in the cylinder, and the end face of the top of the cylinder is an arc concave face;
a first round pin;
a second round pin;
the loading rod is provided with a first end part facing the coupler mounting seat and a second end part facing the loading end of the test bed, the first end part is provided with a second pin hole, the first end part is provided with an arc convex surface matched with the arc concave surface, and the second end part is provided with an external thread;
the sleeve is provided with a first opening and a second opening, the loading seat and the sleeve are connected through the first pin hole and the first opening and by means of the first round pin, and the sleeve and the loading rod are connected through the second pin hole and the second opening and by means of the second round pin; the second opening is extended along the axial direction of the sleeve, so that the loading rod can move along the axial direction of the sleeve, and the arc convex surface of the loading rod can be abutted against and separated from the arc concave surface of the column body; and
and the connecting nut is used for connecting the second end part of the loading rod and the loading end of the test bed and is a split nut.
Further, the loading device further comprises 2 installation hanging rings, the installation hanging rings are installed on the loading rod through threads, and the sleeve is provided with a third opening through which the installation hanging rings penetrate.
Further, the wall thickness of the sleeve is 15-30 millimeters.
Further, the wall thickness of the sleeve is 20-30 mm.
Further, the loading device further comprises a bolt and a nut for connecting the loading seat with the coupler mounting seat.
Furthermore, 3-6 mounting holes are formed in the substrate.
Further, the wall thickness of the connecting nut is 30-50 mm.
Further, the coupling nut is provided with a fastening hole.
The loading device can realize the tests of the two working conditions of stretching and compressing of the car coupler, and only one pair of loading seats needs to be replaced according to different car coupler loading areas, so that the manufacturing cost of the tool and the time for replacing the tool can be saved, the working efficiency and the utilization rate of a test bed are greatly improved, and the loading device has wide application value.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of one embodiment of a loading device of the present invention;
FIG. 2 is a cross-sectional view taken along the line A-A of the loading device shown in FIG. 1;
fig. 3 is a schematic view of the coupling nut.
Wherein the figures include the following reference numerals:
1-loading seat, 101-base plate, 102-column, 103-arc concave surface, 201-first round pin, 202-second round pin, 3-installation hanging ring, 4-sleeve, 401-first opening, 402-second opening, 5-loading rod, 501-first end part, 502-second end part, 503-arc convex surface, 6-connecting nut, 601-fastening hole, 7-test bench loading end and 8-coupler mounting seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The invention provides a loading device for a coupler tension and compression integrated test, wherein the loading device comprises:
the loading seat comprises a base plate and a cylinder arranged on the base plate, a mounting hole used for being mounted with the coupler mounting seat is formed in the base plate, a first pin hole is formed in the cylinder, and the end face of the top of the cylinder is an arc concave face;
a first round pin;
a second round pin;
the loading rod is provided with a first end part facing the coupler mounting seat and a second end part facing the loading end of the test bed, the first end part is provided with a second pin hole, the first end part is provided with an arc convex surface matched with the arc concave surface, and the second end part is provided with an external thread;
the sleeve is provided with a first opening and a second opening, the loading seat and the sleeve are connected through the first pin hole and the first opening and by means of the first round pin, and the sleeve and the loading rod are connected through the second pin hole and the second opening and by means of the second round pin; the second opening is extended along the axial direction of the sleeve, so that the loading rod can move along the axial direction of the sleeve, and the arc convex surface of the loading rod can be abutted against and separated from the arc concave surface of the column body; and
and the connecting nut is used for connecting the second end part of the loading rod and the loading end of the test bed and is a split nut.
Fig. 1 and 2 show one embodiment of the loading device of the present invention. As shown in fig. 1 and fig. 2, the loading device for coupler tension and compression integration test includes: loading seat 1, sleeve 4, loading rod 5, coupling nut 6, first round pin 201 and second round pin 202.
The loading seat 1 comprises a base plate 101 and a cylinder 102 arranged on the base plate 101, wherein a mounting hole (not shown) for mounting with the coupler mounting seat 8 is formed in the base plate 101, a first pin hole is formed in the cylinder 102, and the top end face of the cylinder 102 is an arc concave surface 103.
The loading rod 5 has a first end 501 facing the coupler mount 8 and a second end 502 facing the test stand loading end 7. The first end 501 is provided with a second pin hole, the first end 501 is provided with a circular arc convex surface 503 matched with the circular arc concave surface 103, and the second end 502 is provided with an external thread.
The sleeve 4 is provided with a first bore 401 and a second bore 402. The loading shoe 1 and the sleeve 4 are connected via a first pin hole and a first opening 401 by means of a first circular pin 201, while the sleeve 4 and the loading rod 5 are connected via a second pin hole and a second opening 402 by means of a second circular pin 202. The second opening 402 is elongated in the axial direction of the sleeve 4 so that the loading rod 5 can move in the axial direction of the sleeve 4 and the circular arc convex surface 503 of the loading rod 5 can abut against and separate from the circular arc concave surface 103 of the cylinder 102.
The coupling nut 6 is a split nut that is used to couple the second end 502 of the loading rod 5 and the test stand loading end 7.
When the compression load is applied to the loading end 7 of the test bed, the load is transmitted to the loading seat 1 through the contact of the circular arc convex surface 503 of the first end part 501 of the loading rod 5 and the circular arc concave surface 103 on the loading seat 1. Furthermore, in the invention, the loading rod 5 is provided with the arc convex surface 503, and the loading seat 1 is provided with the corresponding arc concave surface 103, so that the structural design is more consistent with the characteristics that the coupler has a rotation center and the angle of the rotation center can be changed, and further the loading device can simulate the actual stress working condition of the coupler.
When a tensile load is applied to the loading end 7 of the test bed, the loading rod 5 applies a tensile force to the sleeve 4 through the second round pin 202, and then the load is transmitted to the loading seat 1 through the first round pin 201. The sleeve 4 is provided with an elongated second opening 402, whereby it is ensured that the load transfer during compression and tensile tests is not disturbed.
When the coupler with different loading areas needs to be tested, tests of two working conditions of compression and stretching can be realized only by replacing the pair of loading seats 1 without replacing the whole loading device, the manufacturing cost of the tool and the time for replacing the tool are saved, and the working efficiency and the utilization rate of a test bed are greatly improved. In addition, in the invention, the split nut is adopted as the connecting nut 6, the installation length of the loading rod 5 and the loading end 7 of the test bed can be flexibly adjusted under the condition that the distance between the loading seat 1 and the loading end 7 of the test bed is fixed, and the operation is simple and convenient.
According to some embodiments of the present invention, the loading device of the present invention further comprises 2 mounting slings 3. The mounting lifting ring 3 is mounted on the loading rod 5 through threads, and the sleeve 4 is provided with a third opening for the mounting lifting ring 3 to pass through.
In the invention, the hoisting ring 3 is arranged, so that the loading rod 5 can be conveniently moved and installed.
According to some embodiments of the invention, the wall thickness of the sleeve 4 is 15 to 30 mm. The thickness of the sleeve 4 is controlled to ensure that the strength of the sleeve meets the use requirement. In some preferred embodiments, the wall thickness of the sleeve 4 is 20 to 30 mm.
According to some embodiments of the invention, the loading unit of the invention further comprises a bolt and a nut for connecting the loading shoe 1 with the coupler mount 8.
According to some embodiments of the present invention, the substrate 101 has 3 to 6 mounting holes.
According to some embodiments of the present invention, the thickness of the coupling nut 6 is controlled to ensure the strength thereof to meet the use requirements. In some preferred embodiments, the wall thickness of the coupling nut 6 is 30 to 50 mm.
According to some embodiments of the invention, wherein the coupling nut 6 is provided with a fastening hole 601. In the present invention, the coupling nut 6 is assembled and fixed by a bolt through the fastening hole 601.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A loading device for a coupler pull-press integrated test is disclosed, wherein the loading device comprises:
the loading base (1) comprises a base plate (101) and a column body (102) arranged on the base plate (101), a mounting hole used for being mounted with a coupler mounting base (8) is formed in the base plate (101), a first pin hole is formed in the column body (102), and the top end face of the column body (102) is an arc concave surface (103);
a first round pin (201);
a second round pin (202);
the loading rod (5) is provided with a first end part (501) facing the coupler mounting seat (8) and a second end part (502) facing the loading end (7) of the test bed, a second pin hole is formed in the first end part (501), the first end part (501) is provided with a circular arc convex surface (503) matched with the circular arc concave surface (103), and an external thread is formed in the second end part (502);
a sleeve (4), wherein the sleeve (4) is provided with a first opening hole (401) and a second opening hole (402), the loading seat (1) and the sleeve (4) are connected through the first pin hole and the first opening hole (401) and by means of the first round pin (201), and the sleeve (4) and the loading rod (5) are connected through the second pin hole and the second opening hole (402) and by means of the second round pin (202); wherein the second opening (402) is elongated in the axial direction of the sleeve (4) so that the loading rod (5) can move in the axial direction of the sleeve (4) and the arc convex surface (503) of the loading rod (5) can collide with and separate from the arc concave surface (103) of the cylinder (102); and
and the connecting nut (6) is used for connecting the second end part (502) of the loading rod (5) and the loading end (7) of the test bed, and the connecting nut (6) is a split nut.
2. A loading device according to claim 1, wherein the loading device further comprises 2 mounting lugs (3), the mounting lugs (3) being mounted on the loading bar (5) via a screw thread, and the sleeve (4) being provided with a third opening for the mounting lugs (3) to pass through.
3. A loading unit according to claim 1 or 2, wherein the wall thickness of the sleeve (4) is 15-30 mm.
4. A loading unit according to claim 1 or 2, wherein the wall thickness of the sleeve (4) is 20-30 mm.
5. A loading unit according to any of claims 1-4, wherein the loading unit further comprises a bolt and a nut for connecting the loading socket (1) with the coupler mount (8).
6. The loading device according to any one of claims 1 to 5, wherein 3 to 6 mounting holes are provided on the base plate (101).
7. A loading device according to any one of claims 1 to 6, wherein the wall thickness of the coupling nut (6) is 30-50 mm.
8. The loading device according to any one of claims 1 to 7, wherein the connection nut (6) is provided with a fastening hole (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604122.4A CN112179764B (en) | 2019-07-05 | 2019-07-05 | Loading device for draw-press integrated test of coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910604122.4A CN112179764B (en) | 2019-07-05 | 2019-07-05 | Loading device for draw-press integrated test of coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112179764A true CN112179764A (en) | 2021-01-05 |
| CN112179764B CN112179764B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910604122.4A Active CN112179764B (en) | 2019-07-05 | 2019-07-05 | Loading device for draw-press integrated test of coupler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047071A (en) * | 2021-11-22 | 2022-02-15 | 中国船舶科学研究中心 | Parallel fatigue test device based on structure test platform |
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| CN112179764B (en) | 2023-04-25 |
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