CN105114307A - Vacuum pump blade containing spring and vacuum pump - Google Patents
Vacuum pump blade containing spring and vacuum pump Download PDFInfo
- Publication number
- CN105114307A CN105114307A CN201510574570.6A CN201510574570A CN105114307A CN 105114307 A CN105114307 A CN 105114307A CN 201510574570 A CN201510574570 A CN 201510574570A CN 105114307 A CN105114307 A CN 105114307A
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- China
- Prior art keywords
- vacuum pump
- spring
- end cap
- blade body
- blade
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Abstract
The invention discloses a vacuum pump blade containing a spring and a vacuum pump containing the vacuum pump blade. The vacuum pump blade containing the spring comprises a blade body, end caps and the spring. A sliding groove is formed in the middle of the blade body. The two ends of the blade body are further provided with the end caps. The spring is arranged in the middle of the sliding groove. The end caps are clamped to the sliding groove and make contact with the spring. The vacuum pump blade containing the spring is simple and reasonable in structure, easy to produce, stable in property, long in service life, low in cost, and suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of for the blade in vacuum pump, particularly but be not limited to be used in automobile application on.The invention still further relates to the vacuum pump with this vacuum pump vanes.
Background technique
Vacuum pump application, in service braking sytem system, uses rotating vane vacuum pump to provide negative pressure of vacuum for vacuum booster.When the rotor rotates, blade rotates along with rotor and passes rotor to keep fitting with shell body wall on its every one end, and the slot between blade and wall is sealed by oil film.Upon the rotation of the blade, produce vacuum, make gas enter in chamber by entrance, then this gas is discharged by outlet when blade rotary.
All all the time, be relative movement between inside blade and intracavity sidewall and rotor, if the excesssive gap between inside blade and intracavity sidewall and rotor, will leakage be caused, the sealing of vacuum pump can not be met and vacuumize the requirement of efficiency.Due to rubbing contact all the time between inside blade and vacuum pump intracavity sidewall and rotor, very easily wear and tear, along with the wearing and tearing of blade, frictional loss also constantly increases, the gap of blade and intracavity sidewall and rotor becomes greatly simultaneously, and cause sealing to reduce, whole efficiency reduces further.
Mostly existing blade is combined type, and the blade end cap of the blade body and two band latches that can hold end latch by forms.In running, end relies on centrifugal force to be close to vacuum pump inner walls, completes sealing.But in this kind of sealing means vacuum pump running, end cap can ceaselessly slide, and causes vibrations, not only wastes power, and noise is comparatively large, and sealing effect is also bad.
Summary of the invention
Goal of the invention: in order to overcome above deficiency, the object of this invention is to provide a kind of vacuum pump vanes containing spring, it is simple and reasonable for structure, and be easy to produce, stable performance, long service life, cost is low, is applicable to large-scale industrial production.The present invention also provides a kind of vacuum pump, and affiliated vacuum pump comprises vacuum pump vanes, the technique effect that this vacuum pump vanes has, and the vacuum pump comprising this vacuum pump vanes also should have identical technique effect.
Technological scheme: a kind of vacuum pump vanes containing spring, comprise blade body, end cap and spring, be provided with chute in the middle part of described blade body, described blade body two ends are also provided with end cap, wherein said spring is located in the middle part of chute, and described end cap is stuck in chute and touches with described spring interface.Vacuum pump vanes containing spring of the present invention is simple and reasonable for structure, is easy to produce.Replace solid body with spring in the middle part of blade body, save material.Therefore, the described vacuum pump vanes cost containing spring is low, is applicable to large-scale industrial production.
Further, the above-mentioned vacuum pump vanes containing spring, described end cap is provided with one group of extension part, and described extension part is connected in described chute, and can be free to slide in chute.End cap is at least provided with an extension part, enables to slide in the chute of the end cap of this blade in blade body, therefore, it is possible to the wearing and tearing in compensating length direction.In addition, this structure is lower than all-in-one-piece in the required precision of length direction, can reduce cost of production, is applicable to large-scale industrial production.
Further, the above-mentioned vacuum pump vanes containing spring, described both ends of the spring contacts with described extension part.Spring props up the extension part of blade end cap, and compressing end cap is firmly attached to the inwall of vacuum pump housing (stator), makes the sealing reliability of vacuum pump and blade, stable performance.The noise that end cap slides can be reduced simultaneously, and can not power be wasted.
Further, the above-mentioned vacuum pump vanes containing spring, described spring is Compress Spring.Preferred as one, Compress Spring cost is low, is applicable to large-scale industrial production.Compress Spring has respectively enclosed gap (pitch), so that forced contraction, maintains the tension force of upholding to two ends.By busy hour, can not be fully compressed, retention gap between number of active coils, in order to avoid friction or other materials embed, cause fatigue ruption.Compress Spring makes whole vacuum pump vanes stable performance, and long service life.
Further, the above-mentioned vacuum pump vanes containing spring, described blade body and end cap are blade body and the end cap of thermoplastic material or thermosets.Blade body and end cap can according to demand, and select multiple different material, applicability is wide.
As a modification of the present invention, the above-mentioned vacuum pump vanes containing spring, described blade body is the blade body of the polyphenyl thioether material of glass fiber reinforcement or the nylon material of fiberglass reinforced.Wherein blade body is the material that intensity is higher, but less demanding to wear resistance, adopts the polyphenyl thioether material of lower-cost glass fiber reinforcement or the nylon material of fiberglass reinforced, reduces manufacture cost.
As a modification of the present invention, the above-mentioned vacuum pump vanes containing spring, described end cap is the end cap of carbon fiber reinforced polyetheretherketonematerials materials or carbon fiber reinforced nylon material.End cap adopts wear-resisting carbon fiber reinforced polyether-ether-ketone or carbon fiber reinforced nylon plastics to make, and increases the service life.
Technique scheme can be found out, the present invention has following beneficial effect: vacuum pump vanes of the present invention is simple and reasonable for structure, is easy to produce, and stable performance is low to required precision, long service life, and cost is low, is applicable to large-scale industrial production.
The vacuum pump that the present invention relates to, comprises vacuum pump vanes, and this vacuum pump vanes has above-mentioned technique effect, and the vacuum pump comprising this vacuum pump vanes also should have identical technique effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the vacuum pump vanes containing spring of the present invention;
Fig. 2 is the structural representation having this and contain the vacuum pump of the vacuum pump vanes of spring of the present invention.
In figure: 1 blade body, 2 end caps, 2a extension part, 3 springs, 4 chutes, 5 rotors, 6 vacuum pumps, 6a vacuum pump inwall.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Embodiment 1
The vacuum pump vanes containing spring as shown in Figure 1, comprise blade body 1, end cap 2 and spring 3, chute 4 is provided with in the middle part of described blade body 1, described blade body 1 two ends are also provided with end cap 2, wherein said spring 3 is located in the middle part of chute 4, and described end cap 2 is stuck in chute 4 and contacts with described spring 3.Further, described end cap 2 is provided with one group of extension part 2a, and in the present embodiment, described extension part 2a is 2, and described extension part 2a is connected in described chute 4, and can be free to slide in chute 4.And described spring 3 two ends contact with described extension part 2a.Wherein, described blade body 1 and end cap 2 are blade body 1 and the end cap 2 of the polyphenyl thioether material of the glass fiber reinforcement containing 40%, and described spring 3 is Compress Spring.
During work, as shown in Figure 2, rotor 5 is with moving vane to rotate in vacuum pump 6, and vacuum pump vanes end cap 2 and vacuum pump inwall 6a keep Spielpassung, and the oil film that the gap between blade and vacuum pump inwall 6a is formed by lubricant oil seals.Upon the rotation of the blade, blade stablizes to-and-fro motion along blade body 1 length direction in rotor 5.Along with blade rotary, produce vacuum, make gas enter in chamber by entrance, then this gas is discharged by outlet when blade rotary.When after use a period of time, can there are certain wearing and tearing in the end cap 2 of blade.Now, Compress Spring 3 in chute 4 can prop up extension part 2a, makes to slide in the chute 4 of end cap 2 in blade body 1, thus end cap 2 can be still adjacent to closely at vacuum pump inwall 6a, therefore, it is possible to the wearing and tearing in compensating length direction, ensure the sealing of vacuum pump 6.
Embodiment 2
The vacuum pump vanes containing spring as shown in Figure 1, comprise blade body 1, end cap 2 and spring 3, chute 4 is provided with in the middle part of described blade body 1, described blade body 1 two ends are also provided with end cap 2, wherein said spring 3 is located in the middle part of chute 4, and described end cap 2 is stuck in chute 4 and contacts with described spring 3.Further, described end cap 2 is provided with one group of extension part 2a, and in the present embodiment, described extension part 2a is 1, and described extension part 2a is connected in described chute 4, and can be free to slide in chute 4.And described spring 3 two ends contact with described extension part 2a.Wherein, described blade body 1 is the blade body 1 of the polyphenyl thioether material of the glass fiber reinforcement containing 40%, and described end cap 2 is the end cap 2 of the carbon fiber reinforced polyetheretherketonematerials materials containing 30%, and described spring 3 is Compress Spring.
During work, as shown in Figure 2, rotor 5 is with moving vane to rotate in vacuum pump 6, and vacuum pump vanes end cap 2 and vacuum pump inwall 6a keep Spielpassung, and the oil film that the gap between blade and vacuum pump inwall 6a is formed by lubricant oil seals.Upon the rotation of the blade, blade stablizes to-and-fro motion along blade body 1 length direction in rotor 5.Along with blade rotary, produce vacuum, make gas enter in chamber by entrance, then this gas is discharged by outlet when blade rotary.When after use a period of time, can there are certain wearing and tearing in the end cap 2 of blade.Now, Compress Spring 3 in chute 4 can prop up extension part 2a, makes to slide in the chute 4 of end cap 2 in blade body 1, thus end cap 2 can be still adjacent to closely at vacuum pump inwall 6a, therefore, it is possible to the wearing and tearing in compensating length direction, ensure the sealing of vacuum pump 6.
Embodiment 3
The vacuum pump vanes containing spring as shown in Figure 1, comprise blade body 1, end cap 2 and spring 3, chute 4 is provided with in the middle part of described blade body 1, described blade body 1 two ends are also provided with end cap 2, wherein said spring 3 is located in the middle part of chute 4, and described end cap 2 is stuck in chute 4 and contacts with described spring 3.Further, described end cap 2 is provided with one group of extension part 2a, and in the present embodiment, described extension part 2a is 2, and described extension part 2a is connected in described chute 4, and can be free to slide in chute 4.。And described spring 3 two ends contact with described extension part 2a.Wherein, described blade body 1 is the blade body 1 of the nylon material containing 30% fiberglass reinforced, and described end cap 2 is the end cap 2 containing 40% carbon fiber reinforced nylon material, and described spring 3 is Compress Spring.
During work, as shown in Figure 2, rotor 5 is with moving vane to rotate in vacuum pump 6, and vacuum pump vanes end cap 2 and vacuum pump inwall 6a keep Spielpassung, and the oil film that the gap between blade and vacuum pump inwall 6a is formed by lubricant oil seals.Upon the rotation of the blade, blade stablizes to-and-fro motion along blade body 1 length direction in rotor 5.Along with blade rotary, produce vacuum, make gas enter in chamber by entrance, then this gas is discharged by outlet when blade rotary.When after use a period of time, can there are certain wearing and tearing in the end cap 2 of blade.Now, Compress Spring 3 in chute 4 can prop up extension part 2a, thus makes to slide in the chute 4 of end cap 2 in blade body 1, and end cap 2 can be still adjacent to closely at vacuum pump inwall 6a, therefore, it is possible to the wearing and tearing in compensating length direction, ensure the sealing of vacuum pump 6.
The vacuum pump that the present invention relates to comprises vacuum pump vanes, and this vacuum pump vanes is the vacuum pump vanes described in above-mentioned either a program, and because vacuum pump vanes has above-mentioned technique effect, the vacuum pump comprising vacuum pump vanes also should have identical technique effect.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (8)
1. the vacuum pump vanes containing spring, it is characterized in that: comprise blade body (1), end cap (2) and spring (3), described blade body (1) middle part is provided with chute (4), described blade body (1) two ends are also provided with end cap (2), chute (4) middle part is located at by wherein said spring (3), and described end cap (2) is stuck in chute (4) and contacts with described spring (3).
2. the vacuum pump vanes containing spring according to claim 1, is characterized in that: described end cap (2) is provided with one group of extension part (2a), and described extension part (2a) is connected in described chute (4), and can be free to slide in chute (4).
3. the vacuum pump vanes containing spring according to claim 2, is characterized in that: described spring (3) two ends contact with described extension part (2a).
4. the vacuum pump vanes containing spring according to claim 3, is characterized in that: described spring (3) is Compress Spring.
5. the vacuum pump vanes containing spring according to claim 1, is characterized in that: the blade body (1) that described blade body (1) and end cap (2) are thermoplastic material or thermosets and end cap (2).
6. the vacuum pump vanes containing spring according to claim 5, is characterized in that: the blade body (1) of the polyphenyl thioether material that described blade body (1) is glass fiber reinforcement or the nylon material of fiberglass reinforced.
7. the vacuum pump vanes containing spring according to claim 5, is characterized in that: the end cap (2) that described end cap (2) is carbon fiber reinforced polyetheretherketonematerials materials or carbon fiber reinforced nylon material.
8. a vacuum pump, comprises the vacuum pump vanes with inserts, it is characterized in that, described vacuum pump vanes is the vacuum pump vanes with inserts described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574570.6A CN105114307A (en) | 2015-09-11 | 2015-09-11 | Vacuum pump blade containing spring and vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510574570.6A CN105114307A (en) | 2015-09-11 | 2015-09-11 | Vacuum pump blade containing spring and vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114307A true CN105114307A (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510574570.6A Pending CN105114307A (en) | 2015-09-11 | 2015-09-11 | Vacuum pump blade containing spring and vacuum pump |
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| CN (1) | CN105114307A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03213691A (en) * | 1990-01-19 | 1991-09-19 | Hitachi Koki Co Ltd | Feed oil restriction device for oil-sealed rotary vacuum pump |
| CN2202204Y (en) * | 1994-04-26 | 1995-06-28 | 王厚贵 | Double-stage rotary vane vacuum pump |
| CN2937560Y (en) * | 2006-08-09 | 2007-08-22 | 镇江市永泰汽车配件制造有限公司 | Vane vacuum pump |
| CN102536822A (en) * | 2012-02-14 | 2012-07-04 | 无锡市双灵电器厂 | Pin roller sliding vane vacuum pump |
| JP2014181583A (en) * | 2013-03-18 | 2014-09-29 | Sanoh Industrial Co Ltd | Vane pump |
| CN205064269U (en) * | 2015-09-11 | 2016-03-02 | 裕克施乐塑料制品（太仓）有限公司 | Vacuum pump blade and vacuum pump that contain spring |
-
2015
- 2015-09-11 CN CN201510574570.6A patent/CN105114307A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03213691A (en) * | 1990-01-19 | 1991-09-19 | Hitachi Koki Co Ltd | Feed oil restriction device for oil-sealed rotary vacuum pump |
| CN2202204Y (en) * | 1994-04-26 | 1995-06-28 | 王厚贵 | Double-stage rotary vane vacuum pump |
| CN2937560Y (en) * | 2006-08-09 | 2007-08-22 | 镇江市永泰汽车配件制造有限公司 | Vane vacuum pump |
| CN102536822A (en) * | 2012-02-14 | 2012-07-04 | 无锡市双灵电器厂 | Pin roller sliding vane vacuum pump |
| JP2014181583A (en) * | 2013-03-18 | 2014-09-29 | Sanoh Industrial Co Ltd | Vane pump |
| CN205064269U (en) * | 2015-09-11 | 2016-03-02 | 裕克施乐塑料制品（太仓）有限公司 | Vacuum pump blade and vacuum pump that contain spring |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
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| RJ01 | Rejection of invention patent application after publication |