CN219495609U

CN219495609U - Special fixture for testing total life and durability vibration of intercooler

Info

Publication number: CN219495609U
Application number: CN202320771865.2U
Authority: CN
Inventors: 郭紫龙; 高星伟; 张苓; 雷青娟; 王亮亮; 王朋
Original assignee: Shaanxi Shanhang Environmental Test Co ltd
Current assignee: Shaanxi Shanhang Environmental Test Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-08
Anticipated expiration: 2033-04-10

Abstract

The utility model relates to a special fixture for testing the life-span and durable vibration of an intercooler, which comprises: a front plate, a back plate, a pair of middle connecting plates, a top plate and a bottom flat supporting plate; the front plate, the back plate and a pair of middle connecting plates are connected to form a quadrangle and are vertically connected to the upper surface of the bottom flat supporting plate; the front plate is parallel to the back plate, and a pair of middle connecting plates are arranged in parallel; the top plate is vertically connected to the top of the quadrangle; the front plate is provided with a hole for the small end of the intercooler equipment to pass through, and the hole is smaller than the large end of the intercooler; the front plate is also provided with a mounting hole I for connecting the large end of the intercooler; the back plate is provided with the small end positioning hole for connecting the intercooler, the fixture can realize vibration experiments in the axial direction, the radial direction and the tangential direction of the intercooler, and the fixture is light in weight, high in reliability and good in test cost saving.

Description

Special fixture for testing total life and durability vibration of intercooler

Technical Field

The utility model relates to the technical field of mechanical vibration resistance testing, in particular to a special fixture for testing the full-life and durable vibration of an intercooler.

Background

In recent years, with the great investment in research and development of the intercooler, the test requirement of the intercooler is also increasing, and particularly in terms of mechanics, whether the design effect of the intercooler meets the service life requirement or not is verified through the full-life environment durable vibration test, and the service life and possible harm of the intercooler are further verified. In the life-cycle environment durable vibration test of the intercooler, the fixture is designed according to the actual installation mode of the intercooler due to the large volume and complex shape of the structural members of the intercooler so as to ensure that the stress of the intercooler is the same as that of the intercooler in a plane supporting mode and in a working state, the fixture has enough strength, the fixture materials are reasonably selected so as to ensure that the vibration load is transmitted to a test piece without distortion, and the steel welding piece with good rigidity and small deformation is generally selected. However, the steel welding piece has large mass, large required vibration power and insufficient reliability, and the test cost is high.

Disclosure of Invention

The utility model provides a special fixture for testing the life-span durable vibration of an intercooler, and the fixture can be used for realizing vibration experiments in three directions of axial direction, radial direction and tangential direction of the intercooler.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a special fixture of durable vibration test of intercooler life-span includes: a front plate, a back plate, a pair of middle connecting plates, a top plate and a bottom flat supporting plate; the front plate, the back plate and a pair of middle connecting plates are connected to form a quadrangle and are vertically connected to the upper surface of the bottom flat supporting plate; the front plate is parallel to the back plate, and a pair of middle connecting plates are arranged in parallel; the top plate is vertically connected to the top of the quadrangle; the front plate is provided with a hole for the small end of the intercooler equipment to pass through, and the hole is smaller than the large end of the intercooler; the front plate is also provided with a mounting hole I for connecting the large end of the intercooler; and the backboard is provided with a small end positioning hole for connecting the intercooler.

Preferably, a plurality of rib plates are vertically arranged on the outer surfaces of the bottoms of the front plate, the back plate and the middle connecting plate and are vertically connected to the bottom flat supporting plate.

Preferably, the rib plates are vertical triangles.

Preferably, the rib plate is in a vertical trapezoid shape.

Preferably, the top end of the front plate is provided with a trapezoid rib plate with a structure of small top and large bottom in an upward extending mode, and the trapezoid rib plate is vertically connected with the top plate.

Preferably, a plurality of mounting holes II which are uniformly distributed are formed in the upper edge of the bottom flat supporting plate.

Preferably, an L-shaped rib plate is also arranged; mounting holes III are formed in two perpendicular faces of the L-shaped rib plate, and connecting holes are formed in the back plate and the bottom flat supporting plate corresponding to the mounting holes III respectively; the L-shaped rib plate is connected with the corresponding backboard and the bottom flat support plate through the mounting holes III.

One surface of the L-shaped rib plate is connected to the middle of the outer surface of the backboard through the mounting hole III, and the other surface of the L-shaped rib plate is connected to the bottom flat supporting plate.

Preferably, a T-shaped beam is also arranged; the bottom plane of the T-shaped beam is provided with a mounting Kong, and the T-shaped beam is connected to the top plate through a mounting hole IV and is perpendicular to the front plate.

Preferably, the clamp is made of aluminum.

The utility model has the beneficial effects that: the cast aluminum is selected as a clamp material, the front plate and the back plate fix the intercooler on the flat support frame, the front plate and the back plate are connected through the top plate, the front plate and the back plate are provided with a plurality of right triangle reinforcing rib plates at two ends and in the middle, the clamp can meet the requirements of thrust and static bearing capacity of the vibrating table to the greatest extent, one clamp can realize vibration in three directions of axial direction, radial direction and tangential direction, test cost is saved, the test service life of the clamp can reach 3000h through field multiple tests, the high reliability is realized, and the dynamic response value of the clamp and the intercooler monitoring point is met.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a special fixture for intercooler vibration testing of the present utility model;

FIG. 2 is a schematic diagram of a special fixture for vibration testing of the intercooler of the present utility model;

FIG. 3 is a schematic illustration of the operation of the special fixture for testing radial vibration of the intercooler of the present utility model;

FIG. 4 is a schematic illustration of the operation of the inventive intercooler axial, tangential vibration test fixture.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

According to the special fixture for testing the full life and durable vibration of the intercooler shown in fig. 1, 2 and 3, the full life and durable vibration test in three directions of axial, tangential and radial can be realized, the fixture is formed by aluminum materials through a casting process, and the fixture comprises: a front plate 1, a back plate 2, a pair of intermediate connecting plates 3, a top plate 5 and a bottom flat support plate 6; the front plate 1, the back plate 2 and the pair of middle connecting plates 3 are connected and enclosed into a quadrangle and are vertically connected to the upper surface of the bottom flat supporting plate 6; during installation, the intercooler is pushed into the fixture from the hole 14 on the front plate 1 of the special fixture, so that the plug pin at the small end of the intercooler is positioned on the locating hole 7 of the back plate of the fixture, the small end of the intercooler is fixed on the back plate 2, the large end of the intercooler is attached to the outer surface of the front plate, the screw penetrates into the corresponding mounting hole I8 of the front plate of the fixture from the front mounting hole of the intercooler, the large end of the intercooler is fixed on the front plate, and the fixation of the intercooler on the fixture is completed; the top plate 5 is vertically connected to the top of the quadrangle and limits the displacement generated in the radial vibration experiment process; the fastening bolts penetrate through the mounting holes II 9 to fix the bottom flat supporting plate 6 on the vertical vibrating table, then the operation of the clamp in the radial vibration test is carried out, the number of the fastening bolts is 16 to 32, different fastening strengths can be provided, the fastening bolts are applied to intercoolers with different weights, and the more the number of the bolts is, the greater the fastening strength is provided. The clamp is also provided with the rib plates 4 which can be in various shapes such as vertical triangles, vertical trapezoids and the like, and the size and the rib plates in corresponding shapes can be selected for mixed use according to the situation so as to assist the clamp to meet the requirement of radial vibration test strength.

According to the figures 3 and 4, the clamp is further provided with an L-shaped rib plate 11, mounting holes III 10 are formed in two vertical faces of the L-shaped rib plate 11, one face of the L-shaped rib plate 11 is connected to the middle of the outer surface of the backboard 2 through the mounting holes III 10, and the other face of the L-shaped rib plate 11 is connected to the bottom flat supporting plate 6; the T-shaped beam 13 is further arranged, the mounting Kong is arranged on the bottom plane of the T-shaped beam 13, and the T-shaped beam 13 is connected to the top plate 5 through the mounting hole IV 12 and is arranged vertically to the back plate 2; during installation, the L-shaped rib plate 11 is fastened on the clamp backboard 2 by the bolts 10, so that the peripheral strength of the bushing installation area is increased, the T-shaped beam 13 is fastened on the top plate by the bolts 12, and the strength of the top end of the clamp and the backboard is increased; then, performing axial and tangential vibration tests, namely flatly pushing the intercooler into the fixture from the hole 14 on the front plate 1 of the special fixture, enabling the plug pin at the small end of the intercooler to be positioned on the positioning hole 7 of the back plate of the fixture, fixing the small end of the intercooler on the back plate 2, attaching the large end of the intercooler to the outer surface of the front plate, penetrating the screw into the corresponding mounting hole I8 of the front plate of the fixture from the front mounting hole of the intercooler, fixing the large end of the intercooler on the front plate, and finishing the fixation of the intercooler on the fixture; the intermediate connection plates 3 on the left and right sides of the jig surround the intercooler, and restrict the displacement generated in the tangential vibration.

When the durable vibration test of the whole service life of the intercooler is carried out, the vibration intensity is high, the trapezoidal rib plates 15 and the rib plates 4 are arranged to improve the overall rigidity and the strength of the fixture and the intercooler assembly in the vibration test process, so that the load acting on the outer surface (plate structure) of the intercooler casing can be transmitted to the rib plates, the bending deformation of the plate is converted into the stretching, compressing or bending deformation in the plane of the rib plates, and the rigidity of the outer surface (plate structure) of the intercooler casing is improved due to the small deformation of the rib plates, so that the service life and the reliability of the fixture in the test are improved.

And a reserved hanging ring is arranged on the clamp top plate 5, so that the clamp provided with the intercooler is hoisted to the vibration table top through the crown block.

The utility model relates to a special fixture for testing vibration of an intercooler, which comprises the following mounting steps:

step 1, horizontally pushing an intercooler into a fixture from a hole 14 on a front plate 1 of the special fixture, enabling a plug pin at the small end of the intercooler to be positioned on a locating hole 7 of a back plate of the fixture, attaching the large end of the intercooler to the outer surface of the front plate, penetrating a screw into a corresponding mounting hole I8 of the front plate of the fixture from a front mounting hole of the intercooler, and fixing the large end of the intercooler on the front plate to finish the fixation of the intercooler on the fixture;

step 2, installing a reserved hanging ring on the clamp top plate 5, so that the clamp with the intercooler installed is hoisted to a vertical vibration table top through a crown block;

step 3, installing a clamp of the intercooler, and connecting the clamp with the table surface of the vertical vibration table through a mounting hole II 9 of the bottom flat supporting plate 6 by using bolts;

step 4, the step is used for testing the radial vibration of the intercooler, axial and tangential vibration is replaced after the radial vibration is completed, bolts at the bottom are loosened, and a clamp with the intercooler mounted is hoisted to a horizontal vibration table;

step 5, vertically fixing the L-shaped rib plates 11 on the back plate 2 and the bottom flat support plate 6 by using screws 10;

step 6, fixing the T-shaped beam 13 on the top plate of the fixture by using a screw 12;

and 7, connecting the sensor and the vibration exciter, and starting axial and tangential vibration.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A special fixture of durable vibration test of intercooler life-span, characterized by includes: a front plate (1), a back plate (2), a pair of middle connecting plates (3), a top plate (5) and a bottom flat supporting plate (6); the front plate (1), the back plate (2) and a pair of middle connecting plates (3) are connected to form a quadrangle, and are vertically connected to the upper surface of the bottom flat supporting plate (6); the front plate (1) is parallel to the back plate (2), and a pair of middle connecting plates (3) are arranged in parallel; the top plate (5) is vertically connected to the top of the quadrangle; the front plate (1) is provided with a hole (14) for the small end of the intercooler equipment to pass through, and the hole (14) is smaller than the large end of the intercooler; the front plate (1) is also provided with a mounting hole I (8) connected with the large end of the intercooler; the backboard (2) is provided with a small end positioning hole (7) for connecting the intercooler.

2. The special fixture for testing the life-span durable vibration of the intercooler according to claim 1, wherein a plurality of rib plates (4) are vertically arranged on the outer surfaces of the bottoms of the front plate (1), the back plate (2) and the middle connecting plate (3), and each rib plate (4) is vertically connected to the bottom flat supporting plate (6).

3. The special fixture for testing the life-span and durability vibration of the intercooler according to claim 2, wherein the rib plate (4) is in a vertical triangle shape.

4. The special fixture for testing the life-span and durability vibration of the intercooler according to claim 2, wherein the rib plate (4) is in a vertical trapezoid shape.

5. The special fixture for testing the life-span durable vibration of the intercooler according to claim 1 or 2, wherein the top end of the front plate (1) is provided with a trapezoid rib plate (15) with a small upper part and a large lower part in an upward extending mode, and the trapezoid rib plate (15) is vertically connected with the top plate.

6. The special fixture for testing the full life and durable vibration of the intercooler according to claim 1 or 2, wherein a plurality of mounting holes II (9) which are uniformly distributed are arranged at the upper edge of the bottom flat supporting plate (6).

7. The special fixture for testing the life-span durable vibration of the intercooler according to claim 1 or 2, wherein the special fixture is further provided with an L-shaped rib plate (11); mounting holes III (10) are formed in two perpendicular planes of the L-shaped rib plate (11), and the back plate (2) and the bottom flat support plate (6) are respectively provided with connecting holes corresponding to the mounting holes III (10); the L-shaped rib plate (11) is connected with the corresponding backboard (2) and the corresponding bottom flat support plate (6) through the mounting hole III (10).

8. -a special fixture for testing the life-time endurance vibration of an intercooler according to claim 1 or 2, characterized in that a T-beam (13) is also provided; the bottom plane of the T-shaped beam (13) is provided with a mounting Kong (12), and the T-shaped beam (13) is connected to the top plate (5) through a mounting Kong (12) and is arranged perpendicular to the front plate (1).

9. The special fixture for testing the full-life and durable vibration of the intercooler according to claim 1 or 2, wherein the front plate (1), the back plate (2), the pair of middle connecting plates (3), the rib plates (4), the top plate (5), the bottom flat supporting plate (6), the L-shaped rib plates (11) and the T-shaped beam (13) are made of aluminum materials.