CN102536832A - Vacuum pump - Google Patents
Vacuum pump Download PDFInfo
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- CN102536832A CN102536832A CN2012100750901A CN201210075090A CN102536832A CN 102536832 A CN102536832 A CN 102536832A CN 2012100750901 A CN2012100750901 A CN 2012100750901A CN 201210075090 A CN201210075090 A CN 201210075090A CN 102536832 A CN102536832 A CN 102536832A
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- pump
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- pump cover
- vacuum pump
- coupling shaft
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Abstract
The invention discloses a vacuum pump. According to the vacuum pump, a connecting shaft is arranged on one side of a pump body, and a rotor is arranged on the other side of the pump body; a connecting piece for bearing external power is arranged at one end of the connecting shaft, and the other end of the connecting shaft passes through a through hole of the pump body and is connected with the rotor; a sliding block is clamped on the rotor, end face sliding sheets are arranged at two ends of the sliding block, and the rotor, the sliding block and the end face sliding sheets are covered by a pump cover; the pump cover is fixedly connected with the pump body; the sliding block is made of a spring steel sheet; the end face sliding sheets are made of powder metallurgy materials, and the trade mark of the powder metallurgy materials is F0203J; the pump cover is made of a stamping material, and the trade mark of the stamping material is DC06; and the cavity wall of an inner cavity of the pump cover has an elliptical structure, and is machined for one time by an end mill. The vacuum pump is high in reliability and low in noise, avoids clamping stagnation and can ensure the reliability of a braking system well; a connecting piece is convenient to install, so that the defect of the conventional structure is overcome well; and the vacuum pump has a simple structure, is appropriate in material selection and convenient to manufacture, has high economic and technical value, and is suitable for large-scale popularization and application.
Description
Technical field
The invention belongs to automobile brake and pressurization system field, specifically, relate in particular to the vacuum pump in automobile brake and the pressurization system.
Background technique
Vacuum pump is the important component of automobile brake and pressurization system, and it is assemblied between vacuum servo and the pressurization system during installation.Existing vacuum pump comprises the pump housing; One side of this pump housing is provided with coupling shaft, and an end of this coupling shaft is set with the gear that is used to carry external power (like motor), after the other end of coupling shaft passes the via hole on the pump housing; Link to each other with the rotor of pump housing opposite side, and drive this rotor and rotate together.On said rotor, be connected with slide block, the two ends of this slide block are provided with the end face slide plate, and slide block processed by engineering plastics, and the end face slide plate is processed by graphite.Simultaneously, said rotor, slide block and end face slide plate are all covered by pump cover, and this pump cover is processed by aluminum alloy, and are fixedly connected with the said pump housing, and the chamber wall of pump cover inner chamber is ellipsoidal structure, and this ellipse is spliced by 5 sections circular arcs.In use, we find that there is following defective in existing structure:
1, because slide block is processed by engineering plastics, ruptures, so just cause the stressed back of slide block easy-rupturing and engineering plastics fragility is big, easy; And then cause the rotor clamping stagnation, and there was a mechanical failure to cause vacuum pump, and reliability is relatively poor; And then cause brake system malfunctioning, cause security incident.In addition, owing to the end face slide plate is processed by graphite, and the wear resistance of graphite is relatively poor, is prone to after the excessive wear of end face slide plate produce dust, so also can cause the rotor clamping stagnation, thereby further reduce the reliability of vacuum pump;
2, the chamber wall owing to the pump cover inner chamber is an ellipsoidal structure, and is spliced by 5 sections circular arcs, because this ellipse of factors such as machining error still has certain deviation with real ellipse, shakes relatively severity when the end face slide plate is rotated, and causes noise bigger;
3, because coupling shaft carries external power through gear, and gear is installed very inconvenience, and the cost of gear is high, and weight is big.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of good reliability, vacuum pump that noise is little.
Technological scheme of the present invention is following: a kind of vacuum pump; Side at the pump housing (1) is provided with coupling shaft (2); The opposite side of this pump housing is provided with rotor (3); And an end of coupling shaft (2) is provided with the link (4) that is used to carry external power, after the other end that this coupling shaft is worn (2) is crossed the via hole on the pump housing (1), links to each other with said rotor (3); On said rotor (3), be connected with slide block (5), the two ends of this slide block (5) are provided with end face slide plate (6), and rotor (3), slide block (5) and end face slide plate (6) are all covered by pump cover (7); This pump cover (7) is fixedly connected with the said pump housing (1); It is characterized in that: said slide block (5) is processed by spring steel plate, and end face slide plate (6) is processed by powdered metallurgical material, and the trade mark of this powdered metallurgical material is F0203J; And said pump cover (7) is processed by stamping material, and the trade mark of this stamping material is DC06; The chamber wall of said pump cover (7) inner chamber is an ellipsoidal structure, and through the moulding of end mill time processing.
The present invention is on the basis of conventional construction; Said slide block (5) is processed by spring steel plate, and end face slide plate (6) is processed by powdered metallurgical material, the trade mark of this powdered metallurgical material is F0203J; And said pump cover (7) is processed by stamping material, and the trade mark of this stamping material is DC06; The chamber wall of said pump cover (7) inner chamber is an ellipsoidal structure, and through the moulding of end mill time processing.
Adopt above technological scheme; The spring steel plate that the material of slide block (5) adopts related domain to be of little use; And spring steel plate has mechanical properties such as the better elastic limit and fatigue limit, can effectively avoid fracture, so just can prevent well to rupture when the slide block of being processed by spring steel plate (5) is stressed; Stop the generation of rotor catching phenomenon, guarantee the reliability of this vacuum pump; Simultaneously; End face slide plate (6) adopts the stranger powdered metallurgical material of those skilled in the art, because the wear resistance of F0203J is relatively good, produces dust in the time of can avoiding excessive wear preferably so again; Thereby further stop the generation of rotor phenomenon, further guarantee the reliability of this vacuum pump.Simultaneously; Because and the aluminum alloy wear resistance that is used to make pump cover (7) in the existing structure is poor, and end face slide plate (6) adopt F0203J after wear resistance relatively good, therefore need correspondingly improve the wear resistance of pump cover (7) here; Through testing many times and taking all factors into consideration; Preferred field of household appliances DC06 commonly used makes pump cover (7), can avoid end face slide plate (6) that pump cover (7) is worn out, can avoid excessive wear end face slide plate (6) again; Thereby guarantee the proper functioning of this vacuum pump, also help further improving the reliability of this vacuum pump.
In addition, because the chamber wall of said pump cover (7) inner chamber is through the moulding of end mill time processing, the chamber wall through this processes is complete ellipse, can effectively avoid the defective of conventional construction, the degree of shake when alleviating the end face slide plate and rotating, thus reduce noise.Compare with conventional construction, the present invention is good reliability not only, is difficult for taking place clamping stagnation; Can guarantee the reliability of brake system well, and noise is little, has overcome the defective of existing structure well; Selection is suitable, and is simple in structure, easy to make; Have good economy and technological value, be suitable for the large-scale promotion utilization.
Said link (4) is a cross axle, and this link (4) is located at the end face of said coupling shaft (2), and fixing through riveting cap (8) and coupling shaft (2).Cross axle in the above structure can not only carry external power reliably, and easy for installation, can effectively overcome the defective of using gear in the conventional construction.
In the present embodiment, the wall thickness of said pump cover (7) is 1.5～2.5mm, so just makes the wall thickness of pump cover (7) moderate.
Beneficial effect: the present invention is good reliability not only, is difficult for clamping stagnation takes place, and can guarantee the reliability of brake system well; And noise is little, and link is easy for installation, has overcome the defective of existing structure well; Selection is suitable, and is simple in structure, easy to make; Have good economy and technological value, be suitable for the large-scale promotion utilization.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to sectional view;
Fig. 4 removes C behind the pump cover 7 to view for Fig. 2;
Fig. 5 is the schematic representation of pump cover 7 in Fig. 2 and 3.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Shown in Fig. 1～5; The present invention mainly is made up of the pump housing 1, coupling shaft 2, rotor 3, link 4, slide block 5, end face slide plate 6, pump cover 7 and riveting cap 8 etc.; One side of its middle pump body 1 is provided with coupling shaft 2; One end of this coupling shaft 2 is provided with the link 4 that is used to carry external power (like motor, not drawing among the figure).In the present embodiment, said link 4 is a cross axle, and this link 4 is located at the end face of said coupling shaft 2, and is fixedly connected with coupling shaft 2 through riveting cap 8, and this cross axle is used to carry external power, and drives coupling shaft 2 rotations.After the other end of said coupling shaft 2 passes the via hole on the pump housing 1, link to each other, and drive rotor 3 rotates together with said rotor 3.Said rotor 3 is positioned at the opposite side of the pump housing 1, i.e. rotor 3 and the both sides of said coupling shaft 2 separations at the pump housing 1.
On said rotor 3, be connected with slide block 5, both concrete linkage structures are existing technology, do not do at this and give unnecessary details.Said slide block 5 is processed by spring steel plate, and the trade mark of spring steel plate is 65Mn.Be provided with end face slide plate 6 at the two ends of said slide block 5, this end face slide plate 6 is processed by powdered metallurgical material, and this powdered metallurgical material is a current material, and its trade mark is F0203J.
Can find out that from Fig. 1～5 said rotor 3, slide block 5 and end face slide plate 6 are all covered by pump cover 7, this pump cover 7 is fixedly connected with the said pump housing 1, and end face slide plate 6 can be run into the chamber wall of pump cover 7 inner chamber 7a when rotating.Said pump cover 7 is processed by stamping material, and this stamping material is a current material, and its trade mark is DC06.Simultaneously, the inner chamber 7a chamber wall of said pump cover 7 is an ellipsoidal structure, and through the moulding of end mill time processing.The wall thickness of said pump cover 7 is 1.5～2.5mm, is preferably 2mm, and all the other structures of the present invention and existing technology are identical, does not also do at this and gives unnecessary details.
The above is merely preferred embodiment of the present invention, is not restriction with the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. vacuum pump; Side at the pump housing (1) is provided with coupling shaft (2), and the opposite side of this pump housing is provided with rotor (3), and an end of coupling shaft (2) is provided with the link (4) that is used to carry external power; After the other end that this coupling shaft is worn (2) is crossed the via hole on the pump housing (1), link to each other with said rotor (3); On said rotor (3), be connected with slide block (5), the two ends of this slide block (5) are provided with end face slide plate (6), and rotor (3), slide block (5) and end face slide plate (6) are all covered by pump cover (7); This pump cover (7) is fixedly connected with the said pump housing (1); It is characterized in that: said slide block (5) is processed by spring steel plate, and end face slide plate (6) is processed by powdered metallurgical material, and the trade mark of this powdered metallurgical material is F0203J; And said pump cover (7) is processed by stamping material, and the trade mark of this stamping material is DC06; The chamber wall of said pump cover (7) inner chamber is an ellipsoidal structure, and through the moulding of end mill time processing.
2. vacuum pump according to claim 1 is characterized in that: said link (4) is a cross axle, and this link (4) is located at the end face of said coupling shaft (2), and fixing through riveting cap (8) and coupling shaft (2).
3. vacuum pump according to claim 1 and 2 is characterized in that: the wall thickness of said pump cover (7) is 1.5～2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100750901A CN102536832A (en) | 2012-03-21 | 2012-03-21 | Vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100750901A CN102536832A (en) | 2012-03-21 | 2012-03-21 | Vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102536832A true CN102536832A (en) | 2012-07-04 |
Family
ID=46344578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100750901A Pending CN102536832A (en) | 2012-03-21 | 2012-03-21 | Vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536832A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63109293A (en) * | 1986-10-18 | 1988-05-13 | バルマーク・アクチエンゲゼルシヤフト | Vane pump |
| DE3832042A1 (en) * | 1987-10-05 | 1989-04-13 | Barmag Barmer Maschf | Vane-cell pump |
| US5709540A (en) * | 1995-04-19 | 1998-01-20 | Robert Bosch Sistemi Frenanti Spa | Rotary pump with single elastic vane |
| US5779463A (en) * | 1994-07-16 | 1998-07-14 | Pierburg Ag | Rotary piston pump having a slide valve driven by a rotor |
| CN101020992A (en) * | 2007-03-14 | 2007-08-22 | 重庆建设摩托车股份有限公司 | Sintered metal material for compressor |
| CN201225286Y (en) * | 2008-07-22 | 2009-04-22 | 鄂尔多斯市华泰汽车发动机有限公司 | Cam shaft drive single vane rotary vacuum pump |
| CN202520554U (en) * | 2012-03-21 | 2012-11-07 | 重庆云海机械制造有限公司 | Brake-boosting vacuum pump |
-
2012
- 2012-03-21 CN CN2012100750901A patent/CN102536832A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63109293A (en) * | 1986-10-18 | 1988-05-13 | バルマーク・アクチエンゲゼルシヤフト | Vane pump |
| DE3832042A1 (en) * | 1987-10-05 | 1989-04-13 | Barmag Barmer Maschf | Vane-cell pump |
| US5779463A (en) * | 1994-07-16 | 1998-07-14 | Pierburg Ag | Rotary piston pump having a slide valve driven by a rotor |
| US5709540A (en) * | 1995-04-19 | 1998-01-20 | Robert Bosch Sistemi Frenanti Spa | Rotary pump with single elastic vane |
| CN101020992A (en) * | 2007-03-14 | 2007-08-22 | 重庆建设摩托车股份有限公司 | Sintered metal material for compressor |
| CN201225286Y (en) * | 2008-07-22 | 2009-04-22 | 鄂尔多斯市华泰汽车发动机有限公司 | Cam shaft drive single vane rotary vacuum pump |
| CN202520554U (en) * | 2012-03-21 | 2012-11-07 | 重庆云海机械制造有限公司 | Brake-boosting vacuum pump |
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| PB01 | Publication | ||
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Application publication date: 20120704 |