CN113977489A - Be used for single rigidity test frock of rail vehicle V type spring - Google Patents
Be used for single rigidity test frock of rail vehicle V type spring Download PDFInfo
- Publication number
- CN113977489A CN113977489A CN202111348972.6A CN202111348972A CN113977489A CN 113977489 A CN113977489 A CN 113977489A CN 202111348972 A CN202111348972 A CN 202111348972A CN 113977489 A CN113977489 A CN 113977489A
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- shaped spring
- sliding
- shaped
- pressure head
- railway vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A single-piece stiffness test tool for a V-shaped spring of a railway vehicle comprises a base, wherein a V-shaped spring mounting seat and a backrest plate are connected to the base, and the V-shaped spring mounting seat is provided with a mounting inclined surface; the pressing head is connected with a sliding device between the pressing head and the back plate, and when the pressing head exerts vertical acting force on a V-shaped spring installed on the V-shaped spring installation seat, the pressing head vertically reciprocates with the opposite back plate through the sliding device. When the pressure head applies vertical acting force to the V-shaped spring, the pressure head vertically reciprocates up and down with the opposite back plate through the sliding device, so that the vertical reciprocating acting force can be continuously and circularly applied to the V-shaped spring, the V-shaped spring is continuously pressed and released, and the rigidity test of the V-shaped spring is completed.
Description
Technical Field
The invention relates to the field of rail vehicle V-shaped spring test equipment, in particular to a single-piece rigidity test tool for a rail vehicle V-shaped spring.
Background
The V-shaped spring is a vibration damping element formed by compounding rubber with metal such as a top plate, a partition plate, a bottom plate and the like, is used for a bogie suspension system, supports the weight of a vehicle and a load, provides vertical rigidity in the running process of a train, transmits a longitudinal load and a transverse load, and plays a role in vibration damping and buffering. The installation is simple and convenient, and the maintenance-free characteristic is widely applied to subways, light rails and low-floor vehicles. The V-shaped springs are installed in pairs in the bogie, and in order to ensure the normal and safe operation of a vehicle, the rigidity of the two V-shaped springs which are installed together must be ensured in the same range, so that a product must be subjected to a single-piece rigidity test firstly and then two product groups in the same range are selected and installed in pairs.
When the stiffness test is performed on the V-shaped spring, the V-shaped spring needs to be installed and fixed, and a vertical acting force capable of reciprocating is applied to the V-shaped spring. Therefore, the V-shaped spring single-piece stiffness test tool for the railway vehicle is of great significance in the field.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the V-shaped spring single-piece stiffness test tool for the railway vehicle comprises a base, wherein a V-shaped spring mounting seat and a backrest plate are connected to the base, and the V-shaped spring mounting seat is provided with a mounting inclined plane; the pressing head is connected with a sliding device between the pressing head and the back plate, and when the pressing head exerts vertical acting force on a V-shaped spring installed on the V-shaped spring installation seat, the pressing head vertically reciprocates with the opposite back plate through the sliding device.
Furthermore, the sliding device is a sliding block, one surface of the sliding block is fixedly connected with the back plate, and the other surface of the sliding block is connected with the pressure head in a sliding mode.
Furthermore, a first sliding groove is formed in the sliding block, the first sliding groove is connected with a roller in an embedded mode, and the roller protrudes out of the surface of the first sliding groove and can be in contact with the surface of the pressing head.
Furthermore, the first sliding groove is a T-shaped groove, the rolling rod is composed of a hollow cylinder and a positioning pin penetrating through the hollow cylinder, the positioning pin is embedded into the two sides of the T-shaped groove, and the hollow cylinder protrudes out of the surface of the T-shaped groove and can rotate around the positioning pin.
Furthermore, the two ends of the sliding block can be detachably connected with end plates, and the end plates can seal the sliding groove I.
Furthermore, a second sliding groove with one closed end is formed in the end plate, a roller is connected in the second sliding groove in an embedded mode, and the roller protrudes out of the surface of the first sliding groove and can be in contact with the surface of the pressing head.
Furthermore, the pressure head is a wedge-shaped pressure head, one side of the wedge-shaped pressure head is an inclined plane and can be in contact with the end face of the V-shaped spring, and the other side of the wedge-shaped pressure head is a vertical plane and is in sliding contact with the roller.
Furthermore, the V-shaped spring mounting seat is movably connected to the base, the back plate is vertically and fixedly connected with the base, and a gap adjusting device is connected between the V-shaped spring mounting seat and the back plate.
Furthermore, the clearance adjusting device is composed of a screw rod fixedly connected between the V-shaped spring mounting seat and the backrest plate and a nut in matched connection.
Furthermore, the sliding device is a sliding block, one surface of the sliding block is fixedly connected with the pressure head, and the other surface of the sliding block is connected with the pressure head back plate in a sliding mode.
The invention has the following advantages:
1. and when the pressure head applies vertical acting force to the V-shaped spring, the pressure head vertically reciprocates up and down with the opposite back plate through the sliding device, so that the vertical reciprocating acting force can be continuously and circularly applied to the V-shaped spring, the V-shaped spring is continuously pressed and released, and the rigidity test of the V-shaped spring is completed.
2. The slider has adopted and has integrated with back plate or pressure head embedding, can not make pressure apply the process interrupt because the pressure head is exerted the pressure in-process or because of the thickness of V type spring differs and lead to the slider displacement, therefore this frock is efficient and the operation is stable when experimental to V type spring rigidity.
3. The slider is integrated with the back plate or the pressure head embedding, so that the whole tool is simple and convenient to operate when being installed and tested, and the slider does not need to be clamped and fixed independently.
Drawings
FIG. 1 is a side view of a test fixture;
FIG. 2 is a top view of the test fixture;
FIG. 3 is a front view of the slider;
fig. 4 is a cross-sectional view of the slider.
Detailed Description
In order that those skilled in the art will be able to fully practice the present invention, it will be further described with reference to the accompanying drawings and specific examples.
As shown in fig. 1-4, a single-piece stiffness test tool for a V-shaped spring of a railway vehicle comprises a base 1, wherein a V-shaped spring mounting seat 2 and a backrest plate 3 are connected to the base 1, and the V-shaped spring mounting seat 2 is provided with a mounting inclined surface 21; the pressing head device further comprises a pressing head 4, a sliding device is connected between the pressing head 4 and the back plate 3, and when the pressing head 4 exerts vertical acting force on a V-shaped spring installed on the V-shaped spring installation seat 2, the pressing head 4 vertically reciprocates with the back plate 3 relatively through the sliding device.
During testing, one surface of the V-shaped spring is fixedly mounted on the V-shaped spring mounting seat 2, the V-shaped spring mounting seat 2 and the mounting surface of the V-shaped spring are the inclined mounting surfaces 21, so that the V-shaped spring is in an inclined state after being fixedly mounted, and when a vertical acting force F1 is applied to the other surface of the V-shaped spring, the V-shaped spring can be compressed and released, and a load is applied to the V-shaped spring, so that the rigidity test is completed. In this embodiment, the pressure is applied through a pressure head 4, and since the pressure application requires a reciprocating cycle, a sliding device is connected between the pressure head 4 and the back plate 3, the sliding device allows the pressure head 4 to reciprocate vertically with respect to the back plate 3, and when the pressure head 4 is in contact with the V-shaped spring, the sliding device can repeatedly and cyclically apply a vertical force to complete the stiffness test.
In the present embodiment, the contact surfaces of the pressure head 4 and the installation inclined surface 21 with the V-shaped spring are designed to be matched with the end surface of the V-shaped spring, that is, a V-shaped design is adopted, so that a larger contact area with the end surface of the V-shaped spring can be obtained. More preferably, the pressure head 4 is a wedge-shaped pressure head, one side of the wedge-shaped pressure head is an inclined surface and can be contacted with the end surface of the V-shaped spring, and the other side of the wedge-shaped pressure head is a vertical surface and is in sliding contact with the sliding device.
In one embodiment, the sliding device shown in fig. 3 is integrated with the backrest plate 3, the sliding device is a sliding block 5, one surface of the sliding block 5 is fixedly connected with the backrest plate 3, and the other surface of the sliding block 5 is slidably connected with the pressure head 4. One side of the sliding block 5 is fixedly connected with the back plate 3, so that the sliding block 5 cannot generate displacement in the test process to cause test interruption.
The sliding block 5 is provided with a first sliding groove 51, the first sliding groove 51 is connected with a roller 52 in an embedded mode, and the roller 52 protrudes out of the surface of the first sliding groove 51 and can be in contact with the surface of the pressure head 4. The roller 52 is rotatable and protrudes out of the surface of the first sliding chute 51, and when the pressure head 4 applies pressure, the roller 52 is in sliding contact with the pressure head 4, and the pressure can be applied in a cyclic reciprocating manner. Alternatively, a rotating member such as a ball may be inserted and connected into the first sliding groove 51.
The first sliding slot 51 is a T-shaped groove, the roller 52 is composed of a hollow cylinder 521 and a positioning pin 522 penetrating through the hollow cylinder 521, the positioning pin 522 is embedded into the two sides of the T-shaped groove, and the hollow cylinder 521 protrudes out of the surface of the T-shaped groove and can rotate around the positioning pin 522. The roller 52 can be inserted and mounted into the T-shaped groove by the positioning pin 522, and generally the roller 52 can be mounted in a plurality of positions until the T-shaped groove is filled.
In order to prevent the roller 52 from sliding out of the first sliding groove 51, the two ends of the sliding block 5 can be detachably connected with end plates 6, and the end plates 6 can seal the first sliding groove 51. In the present embodiment, the end plate 6 is connected to both ends of the slider 5 by bolts.
The end plate 6 is provided with a second sliding groove 53 with a closed end, a roller 52 is embedded in the second sliding groove 53, and the roller 52 protrudes out of the surface of the first sliding groove 51 and can be in contact with the surface of the pressure head 4. The end plate 6 is provided with a sliding groove II 53 with one closed end, the rolling rods 52 are embedded in the sliding groove II 53 in the same way, and after the end plate 6 and the sliding block 5 are fixedly installed, the rolling rods 52 are distributed on the whole end plate 6 and the sliding block 5 as much as possible, so that the area of the sliding contact between the pressure head 4 and the sliding block is increased to the maximum.
Because the size of V type spring differs, in order to be suitable for the experimental requirement of the V type spring of different sizes, V type spring mount pad 2 swing joint is on base 1, and back plate 3 and the perpendicular fixed connection of base still connect clearance adjusting device between V type spring mount pad 2 and back plate 3.
The clearance adjusting device is composed of a screw rod fixedly connected between the V-shaped spring mounting seat 2 and the backrest plate 3 and a nut in matched connection.
In another embodiment, a sliding device is integrated on the pressure head 4, specifically, the sliding device is a sliding block 5, one surface of the sliding block 5 is fixedly connected with the pressure head 4, and the other surface is slidably connected with the pressure head back plate 3. The specific structure is the same as the above-mentioned embodiment integrated with the backrest plate 3, and will not be described again.
Obviously, the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A single-piece stiffness test tool for a V-shaped spring of a railway vehicle is characterized by comprising a base (1), wherein the base (1) is connected with a V-shaped spring mounting seat (2) and a backrest plate (3), and the V-shaped spring mounting seat (2) is provided with a mounting inclined plane (21); the pressing head device is characterized by further comprising a pressing head (4), a sliding device is connected between the pressing head (4) and the back plate (3), and when the pressing head (4) exerts vertical acting force on a V-shaped spring installed on the V-shaped spring installation seat (2), the pressing head (4) vertically reciprocates with the opposite back plate (3) through the sliding device.
2. The V-shaped spring single-piece stiffness test tool for the railway vehicle according to claim 1, wherein the sliding device is a sliding block (5), one surface of the sliding block (5) is fixedly connected with the backrest plate (3), and the other surface of the sliding block is slidably connected with the pressure head (4).
3. The V-shaped spring single-piece stiffness test tool for the railway vehicle as claimed in claim 2, wherein the sliding block (5) is provided with a first sliding groove (51), the first sliding groove (51) is connected with a roller (52) in an embedded mode, and the roller (52) protrudes out of the surface of the first sliding groove (51) and can be in contact with the surface of the pressure head (4).
4. The V-shaped spring single-piece stiffness test tool for the railway vehicle as claimed in claim 3, wherein the first sliding groove (51) is a T-shaped groove, the roller (52) is composed of a hollow cylinder (521) and a positioning pin (522) penetrating through the hollow cylinder, the positioning pin (522) is embedded into the inner portions of two sides of the T-shaped groove, and the hollow cylinder (521) protrudes out of the surface of the T-shaped groove and can rotate around the positioning pin (522).
5. The tool for testing the stiffness of the single V-shaped spring of the railway vehicle as claimed in claim 3 or 4, wherein end plates (6) are detachably connected to two ends of the sliding block (5), and the first sliding groove (51) can be blocked by the end plates (6).
6. The tool for testing the stiffness of the single V-shaped spring of the railway vehicle as claimed in claim 5, wherein the end plate (6) is provided with a second sliding groove (53) with a closed end, the second sliding groove (53) is connected with a roller (52) in an embedded manner, and the roller (52) protrudes out of the surface of the first sliding groove (51) and can be in contact with the surface of the pressure head (4).
7. The V-shaped spring single-piece stiffness test tool for the railway vehicle as claimed in claim 6, wherein the pressure head (4) is a wedge-shaped pressure head, one side of the wedge-shaped pressure head is an inclined surface and can be in contact with the end face of the V-shaped spring, and the other side of the wedge-shaped pressure head is a vertical surface and is in sliding contact with the roller (52).
8. The V-shaped spring single-piece stiffness test tool for the railway vehicle according to claim 7, wherein the V-shaped spring mounting seat (2) is movably connected to the base (1), the backrest plate (3) is vertically and fixedly connected with the base, and a gap adjusting device is further connected between the V-shaped spring mounting seat (2) and the backrest plate (3).
9. The V-shaped spring single-piece stiffness test tool for the railway vehicle according to claim 8, wherein the gap adjusting device consists of a screw fixedly connected between the V-shaped spring mounting seat (2) and the backrest plate (3) and a nut in matched connection.
10. The V-shaped spring single-piece stiffness test tool for the railway vehicle as claimed in claim 1, wherein the sliding device is a sliding block (5), one surface of the sliding block (5) is fixedly connected with the pressure head (4), and the other surface of the sliding block is slidably connected with the pressure head back plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348972.6A CN113977489B (en) | 2021-11-15 | 2021-11-15 | Single-piece stiffness test tool for V-shaped spring of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348972.6A CN113977489B (en) | 2021-11-15 | 2021-11-15 | Single-piece stiffness test tool for V-shaped spring of railway vehicle |
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| Publication Number | Publication Date |
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| CN113977489A true CN113977489A (en) | 2022-01-28 |
| CN113977489B CN113977489B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111348972.6A Active CN113977489B (en) | 2021-11-15 | 2021-11-15 | Single-piece stiffness test tool for V-shaped spring of railway vehicle |
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| CN213411702U (en) * | 2020-07-24 | 2021-06-11 | 郑州华菱超硬材料有限公司 | A CBN cutter profile tolerance detects anchor clamps for hard turning of wind-powered electricity generation bearing |
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2021
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| US3289472A (en) * | 1965-04-22 | 1966-12-06 | Gordon C Lipe | Ski binding release checking device |
| CN2722229Y (en) * | 2004-07-15 | 2005-08-31 | 株洲时代新材料科技股份有限公司 | Air spring tester of multifunctional train |
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| Publication number | Publication date |
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| CN113977489B (en) | 2023-07-25 |
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