CN112179764B - Loading device for draw-press integrated test of coupler - Google Patents
Loading device for draw-press integrated test of coupler Download PDFInfo
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- CN112179764B CN112179764B CN201910604122.4A CN201910604122A CN112179764B CN 112179764 B CN112179764 B CN 112179764B CN 201910604122 A CN201910604122 A CN 201910604122A CN 112179764 B CN112179764 B CN 112179764B
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- loading
- sleeve
- loading device
- seat
- coupler
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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 car coupler pulling and pressing integrated test, which comprises: the loading seat comprises a base plate and a column body arranged on the base plate, wherein the base plate is provided with a mounting hole, the column body is provided with a first pin hole, and the top end surface of the column body is an arc concave surface; the loading rod is provided with a second pin hole on the first end part and an arc convex surface matched with the arc concave surface, and an external thread is arranged on the second end part; the loading seat is connected with the sleeve through the first pin hole and the first hole by means of a first round pin, the sleeve is connected with the loading rod through the second pin hole and the second hole by means of a second round pin, and the second hole is prolonged 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 a coupling nut for coupling the second end of the load bar to the load end of the test stand, the coupling nut being a split nut.
Description
Technical Field
The invention belongs to the field of static strength test of railway vehicle bodies, and particularly relates to a loading device for a car coupler pulling and pressing integrated test.
Background
At present, when the tensile and compression load test working conditions of the coupler for the static strength test of the railway vehicle body are completed, a disposable test loading device is designed according to different coupler loading areas for each test so as to realize the load application of the tensile and compression test of the coupler, and the devices cannot be adjusted according to different coupler loading areas and cannot meet the requirements of the tensile and compression load test working conditions of the couplers of different vehicle types. Therefore, when each vehicle model is tested, a pair of stretching and compressing tools are required to be newly manufactured, so that the test cost is increased, the tool replacement time is prolonged, and the working efficiency is low.
Disclosure of Invention
Therefore, the invention aims at overcoming the defects in the prior art, and provides the loading device for the draw-press integrated test of the coupler, which is suitable for the tensile and compressive load tests of the couplers of different vehicle types with different loading areas, and can reduce the test cost and improve the working efficiency and the test bed utilization rate.
The aim of the invention is achieved by the following technical scheme.
The invention provides a loading device for a car coupler pulling and pressing integrated test, wherein the loading device comprises:
the loading seat comprises a base plate and a column body arranged on the base plate, wherein a mounting hole for mounting with the coupler mounting seat is formed in the base plate, a first pin hole is formed in the column body, and the top end face of the column body is a circular arc concave surface;
a first round pin;
a second round pin;
the loading rod is provided with a first end part facing the coupler installation 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 external threads;
the sleeve is provided with a first opening and a second opening, the loading seat is connected with the sleeve through the first pin hole and the first opening by means of the first round pin, and the sleeve is connected with the loading rod through the second pin hole and the second opening 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 and separated with the arc concave surface of the cylinder; 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 mounting hanging rings, the mounting hanging rings are mounted on the loading rod through threads, and the sleeve is provided with a third opening for the mounting hanging rings to pass through.
Further, the wall thickness of the sleeve is 15-30 mm.
Further, the wall thickness of the sleeve is 20-30 mm.
Further, the loading device also comprises a bolt and a nut for connecting the loading seat with the coupler mounting seat.
Further, 3 to 6 mounting holes are formed in the substrate.
Further, the wall thickness of the connecting nut is 30-50 mm.
Further, the connecting nut is provided with a fastening hole.
The loading device can realize the tests of two working conditions of stretching and compressing the coupler, and only a pair of loading seats are required to be replaced according to different 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 a wide application value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of one embodiment of a loading apparatus of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken along the A-A plane of the loading device shown in FIG. 1;
fig. 3 is a schematic structural view of the coupling nut.
Wherein the above figures include the following reference numerals:
the device comprises a 1-loading seat, a 101-substrate, a 102-cylinder, a 103-arc concave surface, a 201-first round pin, a 202-second round pin, a 3-mounting hanging ring, a 4-sleeve, a 401-first opening, a 402-second opening, a 5-loading rod, a 501-first end, a 502-second end, a 503-arc convex surface, a 6-connecting nut, a 601-fastening hole, a 7-test bed loading end and an 8-coupler installation seat.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
The invention provides a loading device for a car coupler pulling and pressing integrated test, wherein the loading device comprises:
the loading seat comprises a base plate and a column body arranged on the base plate, wherein a mounting hole for mounting with the coupler mounting seat is formed in the base plate, a first pin hole is formed in the column body, and the top end face of the column body is a circular arc concave surface;
a first round pin;
a second round pin;
the loading rod is provided with a first end part facing the coupler installation 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 external threads;
the sleeve is provided with a first opening and a second opening, the loading seat is connected with the sleeve through the first pin hole and the first opening by means of the first round pin, and the sleeve is connected with the loading rod through the second pin hole and the second opening 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 and separated with the arc concave surface of the cylinder; 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.
Figures 1 and 2 show one embodiment of the loading device of the present invention. As shown in fig. 1 and 2, the loading device for the coupler pulling and pressing integrated test includes: a loading seat 1, a sleeve 4, a loading rod 5, a connecting nut 6, a first round pin 201 and a second round pin 202.
The loading seat 1 comprises a base plate 101 and a column body 102 arranged on the base plate 101, 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 column body 102, and the top end face of the column body 102 is an arc concave surface 103.
The loading bar 5 has a first end 501 facing the coupler mount 8 and a second end 502 facing the test bed loading end 7. The first end 501 is provided with a second pin hole, the first end 501 has a convex arc surface 503 matching the concave arc surface 103, and the second end 502 is provided with an external thread.
The sleeve 4 is provided with a first aperture 401 and a second aperture 402. The load socket 1 and the sleeve 4 are connected via a first pin hole and a first opening 401 by means of a first round pin 201, and the sleeve 4 and the load bar 5 are connected via a second pin hole and a second opening 402 by means of a second round 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 collide with and separate from the circular arc concave surface 103 of the cylinder 102.
The coupling nut 6 is a split nut for coupling the second end 502 of the load bar 5 and the loading end 7 of the test stand.
When a compressive load is applied to the load end 7 of the test bed, the load is transferred to the load bed 1 by the arcuate convex surface 503 of the first end 501 of the load bar 5 contacting the arcuate concave surface 103 on the load bed 1. Further, 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 in accordance with the characteristics that the coupler has a rotation center and the angle thereof can be changed, and 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 transferred 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 tension tests is not disturbed.
When the car coupler with different loading areas is required to be tested, the test of two working conditions of compression and stretching can be realized by only replacing a pair of loading seats 1, the whole loading device is not required to be replaced, the tool manufacturing cost and the tool replacing time 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, so that 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 invention, the loading device of the invention further comprises 2 mounting slings 3. The mounting suspension ring 3 is mounted on the loading rod 5 via a screw thread, and the sleeve 4 is provided with a third opening for the mounting suspension ring 3 to pass through.
In the invention, the lifting 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 15-30 mm. The thickness of the sleeve 4 is controlled to ensure that the strength meets the use requirement. In some preferred embodiments, the wall thickness of the sleeve 4 is 20-30 mm.
According to some embodiments of the invention, the loading device of the invention further comprises a bolt and a nut for connecting the loading seat 1 with the coupler mount 8.
According to some embodiments of the invention, 3 to 6 mounting holes are provided on the substrate 101.
According to some embodiments of the invention, the thickness of the connecting nut 6 is controlled to ensure that the strength meets the use requirement. In some preferred embodiments, the wall thickness of the coupling nut 6 is 30-50 mm.
According to some embodiments of the invention, the coupling nut 6 is provided with fastening holes 601. In the present invention, the coupling nut 6 is assembled and fixed by the bolts through the fastening holes 601.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A loading device for a car coupler pulling and pressing integrated test, the loading device comprising:
the loading seat (1), the loading seat (1) comprises a base plate (101) and a column body (102) arranged on the base plate (101), a mounting hole for mounting with a coupler mounting seat (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);
a loading rod (5), wherein the loading rod (5) is provided with a first end (501) facing a coupler installation seat (8) and a second end (502) facing a loading end (7) of the test stand, 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 external threads;
-a sleeve (4), the sleeve (4) being provided with a first aperture (401) and a second aperture (402), the loading seat (1) being connected with the sleeve (4) via the first pin hole and the first aperture (401) and by means of the first round pin (201), the sleeve (4) being connected with the loading rod (5) via the second pin hole and the second aperture (402) and by means of the second round pin (202);
wherein the second opening (402) is elongated along the axial direction of the sleeve (4) so that the loading rod (5) can move along the axial direction of the sleeve (4) and the circular arc convex surface (503) of the loading rod (5) can collide with and separate from the circular arc concave surface (103) of the cylinder (102); and
a connecting nut (6) for connecting the second end (502) of the loading rod (5) and the loading end (7) of the test stand, wherein the connecting nut (6) is a split nut;
the loading device further comprises 2 mounting hanging rings (3), the mounting hanging rings (3) are mounted on the loading rod (5) through threads, and the sleeve (4) is provided with a third opening for the mounting hanging rings (3) to penetrate through.
2. Loading device according to claim 1, wherein the wall thickness of the sleeve (4) is 15-30 mm.
3. Loading device according to claim 2, wherein the wall thickness of the sleeve (4) is 20-30 mm.
4. A loading device according to claim 3, characterized in that the loading device further comprises a bolt and a nut for connecting the loading seat (1) with the coupler mounting seat (8).
5. Loading device according to claim 4, characterized in that the base plate (101) is provided with 3-6 mounting holes.
6. Loading device according to claim 5, characterized in that the wall thickness of the coupling nut (6) is 30-50 mm.
7. Loading device according to claim 6, characterized in that the coupling nut (6) is provided with fastening holes (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 |
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| Publication Number | Publication Date |
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| CN112179764A CN112179764A (en) | 2021-01-05 |
| CN112179764B true CN112179764B (en) | 2023-04-25 |
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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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114047071B (en) * | 2021-11-22 | 2023-07-11 | 中国船舶科学研究中心 | Parallel fatigue test device based on structural test platform |
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