CN114753997A - Device for testing oil pump in semi-anechoic chamber - Google Patents
Device for testing oil pump in semi-anechoic chamber Download PDFInfo
- Publication number
- CN114753997A CN114753997A CN202210515359.7A CN202210515359A CN114753997A CN 114753997 A CN114753997 A CN 114753997A CN 202210515359 A CN202210515359 A CN 202210515359A CN 114753997 A CN114753997 A CN 114753997A
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- China
- Prior art keywords
- semi
- oil pump
- peripheral
- testing
- anechoic chamber
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 40
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 48
- 239000007788 liquid Substances 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 2
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention provides a device for testing an oil pump in a semi-anechoic chamber, which comprises a sound wave reflecting surface table, a movable panel, a product clamp and an oil groove support, wherein the oil groove support is arranged below the sound wave reflecting surface table, a through hole or a notch is formed in the position, corresponding to the oil groove support, of the sound wave reflecting surface table, the through hole or the notch can be sealed through the movable panel, and after the through hole or the notch is sealed by the movable panel, the movable panel and the table top of the sound wave reflecting surface table are positioned on the same horizontal plane to form an integral reflecting plane. The device provided by the invention can perform acoustic test on the oil pumps with two different installation modes on the same sound wave reflection plane in the semi-anechoic chamber.
Description
Technical Field
The invention relates to the field of acoustic testing of semi-anechoic chambers, in particular to a device for performing acoustic testing on an oil pump for a vehicle in a semi-anechoic chamber.
Background
According to the requirements of GB/T6882 (ISO 3745) and GB/T3767 (ISO 3744), when a product is subjected to acoustic testing, a horizontal reflecting plane is required to be arranged in a semi-anechoic chamber to reflect sound. The vehicle oil pump can be divided into two types according to the installation mode, wherein one type is installed outside the oil tank, and the pump inlet is connected with the pipe orifice of the pipeline (hereinafter referred to as I-type oil pump), and the other type is installed in the oil sump, and the pump inlet is directly immersed below the liquid level (hereinafter referred to as II-type oil pump). Therefore, when the oil pump for the vehicle is used for acoustic testing in the semi-anechoic chamber, the arrangement of horizontal sound wave reflection planes for the oil pumps in two different installation modes needs to be considered.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for testing an oil pump in a semi-anechoic chamber, which has universality and can test not only a type I oil pump but also a type II oil pump.
In order to solve the technical problems, the invention adopts the technical scheme that: a device for testing an oil pump in a semi-anechoic chamber comprises a sound wave reflecting surface table, a movable panel, a product clamp and an oil groove support, wherein the oil groove support is arranged below the sound wave reflecting surface table, a through hole or a notch is formed in the position, corresponding to the oil groove support, of the sound wave reflecting surface table, the through hole or the notch can be sealed through the movable panel, and after the through hole or the notch is sealed by the movable panel, the movable panel and a table board of the sound wave reflecting surface table are located on the same horizontal plane, so that an integral reflecting plane is formed.
The device provided by the invention can perform acoustic test on the oil pumps with two different installation modes on the same sound wave reflection plane in the semi-anechoic chamber. When the I-type oil pump needs to be tested, the I-type oil pump is directly installed on the sound wave reflecting surface table through a product clamp without removing a movable cover plate, and then the pump inlet and the pump outlet are connected with the related pipe orifices; when the II-type oil pump needs to be tested, the movable cover plate is moved away, the oil basin containing engine oil is placed on the oil groove support, the II-type oil pump is installed on the sound wave reflecting surface table through the product clamp, and the inlet of the pump is immersed below the liquid level of the oil basin.
As preferred scheme, product anchor clamps include I type anchor clamps and II type anchor clamps, and I type anchor clamps are used for fixed I type oil pump, and II type anchor clamps are used for fixed II type oil pumps.
Preferably, when the sound wave reflecting surface table is provided with a notch corresponding to the position of the oil tank support, the movable panel can be drawn and moved in the notch along the horizontal plane.
Furthermore, the sound wave reflecting surface table is formed by splicing a central table and a peripheral table; the peripheral table is used for widening the area of the table top of the central table; the table tops of the central table and the peripheral table are positioned on the same horizontal plane and have the characteristics of smooth surface, hard texture and low sound absorption rate; the product clamp, the movable panel and the oil groove support are all arranged on the central table. Because the central table and the peripheral table can be spliced and disassembled, the product to be tested can be conveniently installed and debugged beside the central table and in the arm spread range.
In one embodiment, the peripheral table is in a semi-closed C shape or Contraband shape, the central table can be inserted into the peripheral table from the gap of the peripheral table, and the peripheral table and the central table are spliced into a circular or square sound wave reflection surface table.
In one embodiment, the peripheral table and the central table can be completely separate, each being used independently.
In one embodiment, the number of the central tables is two and the number of the peripheral tables is one. Therefore, one central table can be used for testing in the semi-anechoic chamber, and meanwhile, a product to be tested is installed outdoors on the other central table, so that the working efficiency is improved.
Furthermore, two small through holes are formed in the joint of the peripheral table and the central table. When testing I type oil pump, two little through-holes can be used for alternate into oil pipe way and play oil pipe way.
In one embodiment, the peripheral table and the central table are each provided with a plurality of support feet.
In one embodiment, the supporting feet of the peripheral table and/or the supporting feet of the central table are provided with rollers. This facilitates the movement of the peripheral table and/or the central table.
Drawings
FIG. 1 is a schematic view of an apparatus according to an embodiment of the present invention using a type I jig;
FIG. 2 is a schematic view of a type II jig used in the apparatus according to an embodiment of the present invention;
the reference signs are:
1 acoustic wave reflecting surface table 2, I-shaped clamp 3 and movable panel
4-II type clamp 5-oil groove support 1 a-central table
1 b-peripheral table 1 c-small through hole.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention is further described below with reference to the following examples and the accompanying drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, the device for testing the oil pump in the semi-anechoic chamber comprises a sound wave reflecting surface table 1, an i-shaped clamp 2, a movable panel 3, a ii-shaped clamp 4 and an oil tank bracket 5; the oil groove support 5 is arranged below the sound wave reflecting surface table 1, a through hole or a gap is formed in the position, corresponding to the oil groove support 5, of the sound wave reflecting surface table 1, and the through hole or the gap can be sealed through the movable panel 3; when a notch is formed in the position, corresponding to the oil groove support 5, of the acoustic wave reflecting surface table platform 1, the movable panel 3 can be pulled and moved in the notch along the horizontal plane; when the movable panel 3 covers the through hole or the gap, the movable panel 3 and the table top of the acoustic wave reflecting surface table 1 are in the same horizontal plane to form an integral reflecting plane.
As shown in figure 1, when the I-type oil pump needs to be tested, the I-type oil pump is directly installed on a sound wave reflecting surface table 1 through an I-type clamp 2 without removing a movable cover plate 3, and then a pump inlet and a pump outlet are connected with related pipe orifices, so that the test can be started.
As shown in fig. 2, when the type ii oil pump needs to be tested, the movable cover plate 3 is removed, the oil pan filled with engine oil is placed on the oil tank support, and then the type ii oil pump is mounted on the acoustic wave reflecting surface table 1 through the type ii clamp 4, and the pump inlet is immersed below the liquid level of the oil pan, so that the test can be started.
As shown in fig. 1 and 2, in order to more conveniently install and debug a product to be tested, the acoustic wave reflecting surface table 1 in the embodiment is formed by splicing a central table 1a and a peripheral table 1 b; the peripheral table 1b is used for widening the table area of the central table 1 a; the table tops of the central table 1a and the peripheral table 1b are positioned on the same horizontal plane and have the characteristics of smooth surface, hard texture and low sound absorption rate; the product clamp, the movable panel 3 and the oil groove support 5 are all arranged on the central table 1 a.
As shown in fig. 1 and 2, the peripheral table 1b is in a semi-closed C shape or Contraband shape, the central table 1a can be inserted into the peripheral table 1b from the gap of the peripheral table 1b, and the two tables are spliced into a round table or a square table; the peripheral table 1b and the central table 1a are respectively provided with a plurality of supporting legs, and the peripheral table 1b and the central table 1a can be completely separated and used independently.
As a preferable embodiment, the number of the center stages 1a may be two, and the number of the peripheral stages 1b may be one. Therefore, one central table can be tested in the semi-anechoic chamber, and meanwhile, a product to be tested is installed outdoors on the other central table, so that the working efficiency is improved.
As a further technical scheme, two small through holes 1c are formed at the joint of the peripheral table 1b and the central table 1 a. When testing type I oil pump, two little through-holes 1c can be used for interlude oil feed and oil outlet pipe way.
As a further technical scheme, the supporting feet of the peripheral table 1b and/or the supporting feet of the central table 1a are adjustable in height and are provided with rollers.
When a product needs to be installed, the central table 1a or the peripheral table 1b can move through the rollers arranged below the pillars, so that the central table and the peripheral table are separated, and a tester can conveniently install and debug the product to be tested beside the central table in the arm extension range.
When a product is tested, the splicing center table 1a and the peripheral table 1b are moved and assembled into an integral reflection plane for acoustic testing of the product to be tested.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (10)
1. An apparatus for testing an oil pump in a semi-anechoic chamber, comprising: the device includes sound wave plane of reflection table platform (1), activity panel (3), product anchor clamps, oil groove support (5), install in the below of sound wave plane of reflection table platform (1) oil groove support (5), sound wave plane of reflection table platform (1) corresponds the position of oil groove support (5) and opens and has a through-hole or breach, through-hole or breach accessible activity panel (3) carry out the closing cap, after activity panel (3) cover through-hole or breach, thereby activity panel (3) and sound wave plane of reflection table platform (1) mesa are in same horizontal plane and constitute a whole plane of reflection.
2. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 1, wherein: the product clamp comprises a type I clamp (2) and a type II clamp (4), wherein the type I clamp (2) is used for fixing a type I oil pump, and the type II clamp (4) is used for fixing a type II oil pump.
3. The device for testing an oil pump in a semi-anechoic chamber according to claim 1 or 2, characterized in that: when a notch is formed in the position, corresponding to the oil groove support (5), of the sound wave reflecting surface table platform (1), the movable panel (3) can be pulled and moved in the notch along the horizontal plane.
4. Device for testing an oil pump in a semi-anechoic chamber according to claim 1 or 2, characterized in that: the acoustic wave reflecting surface table (1) is formed by splicing a central table (1 a) and a peripheral table (1 b); the peripheral table (1 b) is used for widening the area of the table top of the central table (1 a); the table tops of the central table (1 a) and the peripheral table (1 b) are positioned on the same horizontal plane and have the characteristics of smooth surface, hard texture and low sound absorption rate; the product clamp, the movable panel (3) and the oil groove support (5) are all arranged on the central table (1 a).
5. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 4, wherein: the peripheral table (1 b) is in a semi-closed C shape or Contraband shape, the central table (1 a) can be inserted into the peripheral table (1 b) from a gap of the peripheral table (1 b), and the peripheral table and the central table are spliced into a round or square sound wave reflecting surface table (1).
6. The apparatus for testing an oil pump in a semi-anechoic chamber of claim 4, wherein: the peripheral table (1 b) and the central table (1 a) can be completely separated and used independently.
7. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 4, wherein: the number of the central tables (1 a) is two, and the number of the peripheral tables (1 b) is one.
8. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 4, wherein: two small through holes (1 c) are arranged at the joint of the peripheral table (1 b) and the central table (1 a).
9. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 4, wherein: the peripheral table (1 b) and the central table (1 a) are both provided with a plurality of supporting legs.
10. The apparatus for testing an oil pump within a semi-anechoic chamber of claim 9, wherein: the supporting feet of the peripheral table (1 b) and/or the supporting feet of the central table (1 a) are provided with rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210515359.7A CN114753997A (en) | 2022-05-12 | 2022-05-12 | Device for testing oil pump in semi-anechoic chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210515359.7A CN114753997A (en) | 2022-05-12 | 2022-05-12 | Device for testing oil pump in semi-anechoic chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114753997A true CN114753997A (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210515359.7A Pending CN114753997A (en) | 2022-05-12 | 2022-05-12 | Device for testing oil pump in semi-anechoic chamber |
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| Country | Link |
|---|---|
| CN (1) | CN114753997A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201743198U (en) * | 2010-05-20 | 2011-02-16 | 温永林 | Split type table |
| US20170030584A1 (en) * | 2015-07-28 | 2017-02-02 | Plank and Hide | Multi-function outdoor table with moveable tabletop used in multiple positions |
| CN107668933A (en) * | 2017-11-02 | 2018-02-09 | 田曼丽 | One kind draws platform |
| CN111265035A (en) * | 2020-01-31 | 2020-06-12 | 陈�峰 | A concatenation formula desk and concatenation formula desk subassembly for university classroom |
| CN212233588U (en) * | 2020-01-16 | 2020-12-29 | 黄毅 | Learning desk |
| CN215263510U (en) * | 2021-04-20 | 2021-12-21 | 天津清润博润滑科技有限公司 | Lubricating oil moisture detection device |
| CN216393422U (en) * | 2021-08-18 | 2022-04-29 | 山东康桥实业有限公司 | Table |
-
2022
- 2022-05-12 CN CN202210515359.7A patent/CN114753997A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201743198U (en) * | 2010-05-20 | 2011-02-16 | 温永林 | Split type table |
| US20170030584A1 (en) * | 2015-07-28 | 2017-02-02 | Plank and Hide | Multi-function outdoor table with moveable tabletop used in multiple positions |
| CN107668933A (en) * | 2017-11-02 | 2018-02-09 | 田曼丽 | One kind draws platform |
| CN212233588U (en) * | 2020-01-16 | 2020-12-29 | 黄毅 | Learning desk |
| CN111265035A (en) * | 2020-01-31 | 2020-06-12 | 陈�峰 | A concatenation formula desk and concatenation formula desk subassembly for university classroom |
| CN215263510U (en) * | 2021-04-20 | 2021-12-21 | 天津清润博润滑科技有限公司 | Lubricating oil moisture detection device |
| CN216393422U (en) * | 2021-08-18 | 2022-04-29 | 山东康桥实业有限公司 | Table |
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