CN108918280B - Loading device for static strength test of vehicle body end wall - Google Patents
Loading device for static strength test of vehicle body end wall Download PDFInfo
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- CN108918280B CN108918280B CN201810751829.3A CN201810751829A CN108918280B CN 108918280 B CN108918280 B CN 108918280B CN 201810751829 A CN201810751829 A CN 201810751829A CN 108918280 B CN108918280 B CN 108918280B
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- cross beam
- seat
- loading
- plate
- fixedly connected
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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
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
-
- 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
- G01N3/02—Details
- G01N3/04—Chucks
-
- 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
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
Abstract
The loading device for the static strength test of the end wall of the car body belongs to the field of a loading device used for the static strength test of the end wall of a railway passenger car, and comprises a loading cross beam, two door-shaped cross beam hanging seats, two flanging clamping seats and two force application cylinders, wherein the front end of each door-shaped cross beam hanging seat is fixedly connected with a corresponding flanging clamping seat, and the front end of each door-shaped cross beam hanging seat is fixedly connected with a corresponding force application cylinder; each door-shaped beam hanging seat, the flanging clamping seat and the force application cylinder form a positioning loading device together; each positioning and loading device is fixedly connected to one end of the loading beam through a portal beam hanging seat, and the two positioning and loading devices are arranged in mirror symmetry with respect to the perpendicular plane of the long edge of the loading beam. The invention utilizes the connection of the lifting rope and the lifting sling, can transport the loading device for the static strength test of the end wall of the vehicle body to a proper test height, and utilizes the force application cylinders which are respectively and fixedly connected behind each flanging clamping seat to apply acting force to the end wall, thereby implementing the static strength compression test of the end wall of the vehicle body.
Description
Technical Field
The invention belongs to the field of a loading device for a dead-end wall static strength test of a railway passenger car, and particularly relates to a loading device for a dead-end wall static strength test of a car body.
Background
As shown in fig. 1 and 2, an end wall 1 of a railway passenger car is mainly a wall body of a door structure formed by combining an end wall vertical plate 1-1 and a side wall outer edge rib plate 1-2, wherein the side wall outer edge rib plate 1-2 is perpendicular to the plane of the end wall vertical plate 1-1 and is welded with the end wall vertical plate. Due to the requirement of a welding process, and in order to strengthen the mechanical structure strength of the rib plate 1-2 at the outer edge of the side wall, an inner side flanging 1-2-1 parallel to the end wall vertical plate 1-1 is also arranged at the edge of the rib plate 1-2 at the outer edge of the side wall.
The static strength test of the body structure of the railway passenger car is a general test method for testing the structural strength of various large parts of the body, and needs to fix the force bearing main body structure of a tested part and apply external forces such as stretching, twisting, compression and the like at a given force application position, so as to obtain mechanical test data and test the reasonability of structural strength design. For the static strength compression test of the end wall of the vehicle body, the test standard requires that the acting forces of two compression tests are directly loaded at the positions of the vertical sections of the rib plates 1-2 at the outer edges of the left side wall and the right side wall. However, the force application loading hydraulic cylinders for the existing vehicle body structure static strength test cannot be matched with the inner side flanging 1-2-1, so that the acting force of the force application loading hydraulic cylinders cannot be loaded on the vertical section position of the rib plate 1-2 at the outer edge of the side wall.
Disclosure of Invention
The invention provides a loading device for a static strength test of a vehicle body end wall, and aims to solve the technical problems that an inner side flanging parallel to an end wall vertical plate is arranged at the edge of an existing side wall outer edge rib plate, and a force application loading hydraulic cylinder for a static strength test of an existing vehicle body structure cannot be matched with the inner side flanging, so that the acting force of a compression test cannot be loaded on the side wall outer edge rib plate, and further the static strength test of the vehicle body end wall cannot be implemented.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the loading device for the static strength test of the end wall of the vehicle body comprises a loading cross beam, two door-shaped cross beam hanging seats, two flanging clamping seats and two force application cylinders, wherein the front end of each door-shaped cross beam hanging seat is fixedly connected with a corresponding flanging clamping seat, and the front end of each door-shaped cross beam hanging seat is fixedly connected with a corresponding force application cylinder; each door-shaped beam hanging seat, a corresponding flanging clamping seat and a corresponding force application cylinder form a positioning loading device together; each positioning and loading device is fixedly connected to one end of the loading beam through a portal beam hanging seat, and the two positioning and loading devices are arranged in mirror symmetry with respect to the perpendicular plane of the long edge of the loading beam.
The loading beam comprises a beam, two lifting lugs and a lifting rope, the two lifting lugs are symmetrically arranged on the left side and the right side of the upper end surface of the beam, and two ends of the lifting rope are fixedly connected with one corresponding lifting lug; and the upper end surface of the outer beam at the outer side of each lifting lug is provided with a beam connecting screw hole, and the left beam connecting screw hole and the right beam connecting screw hole are arranged in mirror symmetry with respect to the middle vertical plane of the long edge of the loading beam.
The portal-shaped beam hanging seat comprises an upper end plate, two vertical plates and a beam connecting bolt which are integrally formed, the upper end plate is rectangular, a connecting seat screw hole is formed in the center of the upper end plate, the end faces of the front side wall and the rear side wall of the upper end plate are fixedly connected with the side wall of one vertical plate respectively, and the two vertical plates are parallel to each other; a plurality of flange screw holes are formed in the end face of the vertical plate; the upper end plate and the two vertical plates are encircled together to form a cross beam bridging seat structure in a shape of a Chinese character 'men'; the cross beam bridging seat structure in the shape of a Chinese character 'men' rides on the upper end of the cross beam, and a cross beam connecting bolt sequentially penetrates through the connecting seat screw hole and the cross beam connecting screw hole and is in threaded connection with the connecting seat screw hole and the cross beam connecting screw hole.
The flanging clamping seat comprises a clamping seat flange and a flanging limiting plate, the flanging limiting plate is vertically fixedly connected to the center of the flange end face of the clamping seat flange, limiting clamping grooves are formed in the side walls of the flanging limiting plate, and the grooving directions of the limiting clamping grooves are parallel to the flange end face of the clamping seat flange.
The clamping seat flange plate is fixedly connected with a flange screw hole on one vertical plate of the clamping seat flange plate through a bolt, and the force application cylinder is fixedly connected with a flange screw hole on the other vertical plate through a flange plate and a bolt; the slotting direction of the limiting clamping groove is parallel to the axial direction of the cross beam connecting screw hole, and the notch direction of the limiting clamping groove faces the direction of the end part of the cross beam.
The distance value between the bottom surfaces of the grooves of the two limiting clamping grooves is equal to the distance value between the two inner side flanges.
The invention has the beneficial effects that: the loading device for the static strength test of the end wall of the vehicle body respectively realizes the limiting and fixing of the left door panel and the right door panel along the y-axis direction of the two door panels through the two positioning loading devices which are arranged in mirror symmetry along the perpendicular plane of the long edge of the loading beam. Each flanging clamping seat is provided with a limiting clamping groove, the slotting direction of which is parallel to the axial direction of the beam connecting screw hole, and the notch direction of the limiting clamping groove faces to the direction of the end part of the beam. The distance value between the bottom surfaces of the grooves of the two flanging limiting plates is equal to the distance value between the two inner side flanging limiting plates, so that the left door plate and the right door plate are limited and fixed. The lifting rope is used for being connected with a lifting sling, the loading device for the static strength test of the end wall of the vehicle body is transported to a proper test height, and the force application cylinders fixedly connected behind each flanging clamping seat are used for applying acting force to the end wall, so that the static strength compression test of the end wall of the vehicle body can be implemented.
The loading device for the static strength test of the end wall of the vehicle body also has the advantages of simple and practical structure, convenient operation, low cost, convenient popularization and the like.
Drawings
FIG. 1 is a schematic structural view of a prior art end wall;
FIG. 2 is an enlarged partial schematic view of section I of FIG. 1;
FIG. 3 is a schematic perspective view of a loading device for a static strength test of a vehicle body end wall, which does not comprise a hanging strip and a connecting bolt, according to the invention;
FIG. 4 is a schematic perspective view of a load beam according to the present invention;
FIG. 5 is a schematic perspective view of a portal-shaped beam hanger of the present invention;
FIG. 6 is a schematic perspective view of the flanging clamping seat of the present invention;
FIG. 7 is a schematic perspective view of the positioning and loading device of the present invention;
FIG. 8 is a schematic diagram of the application of the loading device for the static strength test of the end wall of the vehicle body, which does not comprise the hanging strip and the connecting bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2 to 7, the loading device for the static strength test of the end wall of the vehicle body comprises a loading beam 2, two door-shaped beam hanging seats 3, two flanging clamping seats 4 and two force application cylinders 5, wherein the front end of each door-shaped beam hanging seat 3 is fixedly connected with one corresponding flanging clamping seat 4, and the front end of each door-shaped beam hanging seat 3 is fixedly connected with one corresponding force application cylinder 5. Each door-shaped beam hanging seat 3, a corresponding flanging clamping seat 4 and a corresponding force application cylinder 5 form a positioning loading device together. Each positioning and loading device is fixedly connected to one end of the loading beam 2 through a door-shaped beam hanging seat 3, and the two positioning and loading devices are arranged in mirror symmetry with respect to the perpendicular plane of the long edge of the loading beam 2.
The loading beam 2 comprises a beam 2-1, two lifting lugs 2-2 and a lifting rope 2-3, the two lifting lugs 2-2 are symmetrically arranged on the left side and the right side of the upper end face of the beam 2-1, and two ends of the lifting rope 2-3 are fixedly connected with one corresponding lifting lug 2-2. The upper end face of the outer beam 2-1 at the outer side of each lifting lug 2-2 is provided with a beam connecting screw hole 2-1-1, and the left and right beam connecting screw holes 2-1-1 are arranged in mirror symmetry relative to the middle vertical plane of the long edge of the loading beam 2.
The portal beam hanging seat 3 comprises an upper end plate 3-1, two vertical plates 3-2 and a beam connecting bolt 3-3 which are integrally formed, the upper end plate 3-1 is rectangular, a connecting seat screw hole 3-1-1 is formed in the center of the upper end plate 3-1, the end faces of the front side wall and the rear side wall of the upper end plate 3-1 are fixedly connected with the side wall of one vertical plate 3-2 respectively, and the two vertical plates 3-2 are parallel to each other. The end face of the vertical plate 3-2 is provided with a plurality of flange screw holes 3-2-1. The upper end plate 3-1 and the two vertical plates 3-2 are enclosed together to form a cross beam bridging seat structure 3-4 in a shape of a Chinese character 'men'. A cross beam bridging seat structure 3-4 in a shape of a Chinese character 'men' rides on the upper end of a cross beam 2-1, and a cross beam connecting bolt 3-3 sequentially passes through a connecting seat screw hole 3-1-1 and a cross beam connecting screw hole 2-1-1 and is in threaded connection with the two.
The flanging clamping seat 4 comprises a clamping seat flange plate 4-1 and a flanging limiting plate 4-2, the flanging limiting plate 4-2 is vertically and fixedly connected to the center of the flange end face of the clamping seat flange plate 4-1, each side wall of the flanging limiting plate 4-2 is provided with a limiting clamping groove 4-2-1, and the slotting direction of the limiting clamping groove 4-2-1 is parallel to the flange end face of the clamping seat flange plate 4-1.
The clamping seat flange plate 4-1 is fixedly connected with a flange screw hole 3-2-1 on one vertical plate 3-2 through a bolt, and the force application cylinder 5 is fixedly connected with a flange screw hole 3-2-1 on the other vertical plate 3-2 through a flange plate and a bolt. The slotting direction of the limiting clamping groove 4-2-1 is parallel to the axial direction of the cross beam connecting screw hole 2-1-1, and the notch direction of the limiting clamping groove 4-2-1 faces the direction of the end part of the cross beam 2-1.
The distance value between the bottom surfaces of the slots of the two limiting clamping grooves 4-2-1 is equal to the distance value between the two inner side flanges 1-2-1.
Specifically, when the loading device for the vehicle body end wall static strength test is applied, as shown in fig. 8, firstly, the beam connecting bolt 3-3 on each positioning and loading device is removed, the positioning and loading device can freely slide on the beam 2-1, and then the positions of the two limiting clamping grooves 4-2-1 are respectively adjusted, so that the limiting clamping groove 4-2-1 on each positioning and loading device is clamped on one corresponding inner side flanging 1-2-1.
Then, the middle section of the lifting rope 2-3 is used for being connected with a lifting sling, the loading device for the static strength test of the end wall of the vehicle body is transferred to a proper test height, then the limiting and fixing of the left door panel 1-1 and the right door panel 1-1 can be completed through the two flanging limiting plates 4-2, the force application cylinder 5 can be enabled to apply acting force to the end wall 1, and the static strength compression test of the end wall of the vehicle body can be implemented.
The beam connecting bolts 3-3 are not used in the process, and only when the loading beam 2 needs to be separately dispatched, the two beam connecting bolts 3-3 respectively pass through the same corresponding connecting seat screw hole 3-1-1 and a corresponding beam connecting screw hole 2-1-1 to be in threaded connection, so that the portal beam hanging seat 3 is fixed when the loading beam 2 is hoisted.
Claims (4)
1. The loading device for the static strength test of the end wall of the vehicle body comprises a loading cross beam (2), two door-shaped cross beam hanging seats (3), two flanging clamping seats (4) and two force application cylinders (5), wherein the front end of each door-shaped cross beam hanging seat (3) is fixedly connected with one corresponding flanging clamping seat (4), and the front end of each door-shaped cross beam hanging seat (3) is fixedly connected with one corresponding force application cylinder (5); each door-shaped beam hanging seat (3), a corresponding flanging clamping seat (4) and a corresponding force application cylinder (5) form a positioning loading device together; each positioning and loading device is fixedly connected to one end of a loading beam (2) through a portal beam hanging seat (3), and the two positioning and loading devices are arranged in mirror symmetry relative to a middle vertical plane of a long edge of the loading beam (2);
the loading beam (2) comprises a beam (2-1), two lifting lugs (2-2) and lifting ropes (2-3), the two lifting lugs (2-2) are symmetrically arranged on the left side and the right side of the upper end face of the beam (2-1), and two ends of each lifting rope (2-3) are fixedly connected with the corresponding lifting lug (2-2); the upper end face of the outer cross beam (2-1) at the outer side of each lifting lug (2-2) is provided with a cross beam connecting screw hole (2-1-1), and the left cross beam connecting screw hole and the right cross beam connecting screw hole (2-1-1) are arranged in mirror symmetry relative to the middle vertical plane of the long side of the loading cross beam (2);
the method is characterized in that: the door-shaped beam hanging seat (3) comprises an upper end plate (3-1), two vertical plates (3-2) and a beam connecting bolt (3-3) which are integrally formed, the upper end plate (3-1) is rectangular, a connecting seat screw hole (3-1-1) is formed in the center of the upper end plate, the end faces of the front side wall and the rear side wall of the upper end plate (3-1) are fixedly connected with the side wall of one vertical plate (3-2), and the two vertical plates (3-2) are parallel to each other; a plurality of flange screw holes (3-2-1) are arranged on the end surface of the vertical plate (3-2); the upper end plate (3-1) and the two vertical plates (3-2) are enclosed together to form a cross beam bridging seat structure (3-4) in a shape of a Chinese character 'men'; the cross beam bridging seat structure (3-4) in the shape of a Chinese character 'men' rides on the upper end of the cross beam (2-1), and a cross beam connecting bolt (3-3) sequentially penetrates through the connecting seat screw hole (3-1-1) and the cross beam connecting screw hole (2-1-1) and is in threaded connection with the connecting seat screw hole and the cross beam connecting screw hole.
2. The loading device for the static strength test of the end wall of the vehicle body according to claim 1, wherein: the flanging clamping seat (4) comprises a clamping seat flange plate (4-1) and a flanging limiting plate (4-2), the flanging limiting plate (4-2) is vertically fixedly connected to the center of the flange end face of the clamping seat flange plate (4-1), each side wall of the flanging limiting plate (4-2) is provided with a limiting clamping groove (4-2-1), and the slotting direction of the limiting clamping groove (4-2-1) is parallel to the flange end face of the clamping seat flange plate (4-1).
3. The loading device for the static strength test of the end wall of the vehicle body as claimed in claim 2, wherein: the clamping seat flange plate (4-1) is fixedly connected with a flange screw hole (3-2-1) on one vertical plate (3-2) through a bolt, and the force application cylinder (5) is fixedly connected with a flange screw hole (3-2-1) on the other vertical plate (3-2) through a flange plate and a bolt; the slotting direction of the limiting clamping groove (4-2-1) is parallel to the axial direction of the cross beam connecting screw hole (2-1-1), and the notch direction of the limiting clamping groove (4-2-1) faces the direction of the end part of the cross beam (2-1).
4. The loading device for the static strength test of the end wall of the vehicle body as claimed in claim 3, wherein: the distance value between the bottom surfaces of the slots of the two limiting clamping grooves (4-2-1) is equal to the distance value between the two inner side flanges (1-2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751829.3A CN108918280B (en) | 2018-07-10 | 2018-07-10 | Loading device for static strength test of vehicle body end wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810751829.3A CN108918280B (en) | 2018-07-10 | 2018-07-10 | Loading device for static strength test of vehicle body end wall |
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| Publication Number | Publication Date |
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| CN108918280A CN108918280A (en) | 2018-11-30 |
| CN108918280B true CN108918280B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810751829.3A Active CN108918280B (en) | 2018-07-10 | 2018-07-10 | Loading device for static strength test of vehicle body end wall |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109682615B (en) * | 2019-01-31 | 2020-10-30 | 西南交通大学 | Hanging type monorail vehicle body strength test device |
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| CN108918280A (en) | 2018-11-30 |
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Effective date of registration: 20220621 Address after: No. 435, Qingyin Road, Luyuan District, Changchun City, Jilin Province Patentee after: CRRC CHANGCHUN RAILWAY VEHICLES Co.,Ltd. Patentee after: Changchun CRRC Rail Vehicle Technology Development Co., Ltd Address before: 130062 Jilin province Changchun city green yam Road No. 435 Patentee before: CRRC CHANGCHUN RAILWAY VEHICLES Co.,Ltd. |