CN102392809A - Vacuum displacement pump based on Maltese cross movement mechanism - Google Patents
Vacuum displacement pump based on Maltese cross movement mechanism Download PDFInfo
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- CN102392809A CN102392809A CN201110409488XA CN201110409488A CN102392809A CN 102392809 A CN102392809 A CN 102392809A CN 201110409488X A CN201110409488X A CN 201110409488XA CN 201110409488 A CN201110409488 A CN 201110409488A CN 102392809 A CN102392809 A CN 102392809A
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- maltese cross
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- cross movement
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- 230000033001 locomotion Effects 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 244000027321 Lychnis chalcedonica Species 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention discloses a vacuum displacement pump based on a Maltese cross movement mechanism. The vacuum displacement pump comprises a Maltese cross movement mechanism; a groove is arranged on a driven disk; a driving disk is provided with a clamping body; a pump cavity is formed at the bottom of the groove; a piston is arranged in the pump cavity; two pistons of which the axes are located on the same straight line are connected through a rigid connecting piece; the driven disk rotates around a movement shaft; an air inlet hole and an air outlet hole are formed on the movement shaft; and when the clamping body is clamped with the groove, the pump cavity corresponding to the groove is communicated with the air outlet hole, and the other pump cavity on the same axis as the pump cavity is communicated with the air inlet hole. With the Maltese cross movement mechanism, the vacuum pump has relatively high control accuracy, makes full use of circular motion, realizes more stable operation and higher efficiency, can greatly reduce the vibration and noise of a pump body, and has relatively low loss and long service life; and moreover, an air intake/exhaust valve is not required, the air intake/exhaust tightness is better due to the adoption of a rotary machine, and a relatively high vacuum degree can be realized.
Description
Technical field
The present invention relates to a kind of vacuum pump, particularly a kind of vacuum displacement pump based on Maltese cross movement mechanism.
Background technique
Vacuum pump is widely used in all trades and professions, and the vacuum pump kind is more to have multiple structure, and various structures all have pluses and minuses separately, and the limiting vacuum value that can reach also has very big difference.Big and the efficient low (like reciprocating piston pump, sliding vane rotary pump) of the surface friction drag that has, but easy to manufacture, cost is low; The efficient height that has but processing difficulties (like Roots pump, screw pump), cost are high.Wherein the reciprocating piston type vacuum pump is the most ripe at present and the most reliable a kind of structural type; It realizes air-breathing, exhaust through cylinder; Can reach higher vacuum values; Because piston has the reliability height, maintenance is easy, easy to process, assembling is simple, the low significant advantage of cost, thereby the reciprocating piston type vacuum pump is still present most popular vacuum pump.
Reciprocating piston type vacuum pump forms of motion is that piston is done linear reciprocating motion in pump chamber, and the spatial volume generating period that piston and pump chamber are surrounded changes, to reach the purpose of air inlet and exhaust.Because the form that the providing of current driving force mostly is to rotatablely move provides, so for the driven plunger linear reciprocating motion, must drive reciprocating motions of the pistons through mechanisms such as bent axle, connecting rods, the size of complete machine is become greatly.The linear reciprocating motion of piston is an acceleration and deceleration motion, and connecting rod is plane motion, certainly lead to unbalanced inertial force like this and cause the vibration and the mechanical noise of machine, and piston is easy to wearing and tearing, and the working life of vacuum pump is shorter.Eccentric swing has also increased force of sliding friction greatly in addition, thus consume more powerful, and rotating speed can not be too high, so efficient is lower.
Comprehensive above-mentioned reason, how to find a kind of easy to manufacture, cost is low, efficient is high, the vacuum pump of high vacuum values, is the target that the Professional visitors tries hard to gain all the time always.
Summary of the invention
To the deficiency of above-mentioned existing technology, the purpose of this invention is to provide that a kind of noise is little, reliability is high, long service life, vacuum pump with high vacuum values.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of vacuum displacement pump based on Maltese cross movement mechanism comprises Maltese cross movement mechanism, and said Maltese cross movement mechanism comprises a drive plate and a driven disc; Said driven disc is provided with the even number groove, and said groove radially evenly distributes along said driven disc, and said drive plate is provided with an engaging body; When said engaging body engages with said groove; Said drive plate rotation can drive said driven disc rotation, and the bottom of said groove is provided with through hole, and said through hole forms pump chamber; Be provided with the piston that matches with it in the said pump chamber, two pistons that axis is located along the same line connect through rigid connector; Said driven disc is around rotating with a machine mandrel; Said machine mandrel is fixed; Said pump chamber is connected with the motive sealing of said pole piece axle, and said pole piece axle is provided with an inlet hole and an air outlet hole, when said engaging body engages with a groove; The corresponding pump chamber of this groove is communicated with said air outlet hole, and another pump chamber that is positioned at same axis with this pump chamber is communicated with said inlet hole.
Preferably, on said driven disc, form arc-shaped concave between adjacent two grooves; Said drive plate is provided with a cam; When said engaging body and said groove broke away from, said cam matched with said arc-shaped concave and relatively moves, and said driven disc does not rotate.
Preferably, the outer end of said piston is connected with an end of piston rod, and the other end of said piston rod is connected with needle roller, and said needle roller is mobilizable to be stuck in the said groove.
Preferably, said driven disc is provided with 6 grooves.
Preferably, said groove is the U-groove bevel that extends along said driven disc radial direction from said driven disc peripheral openings.
Preferably, be provided with cylinder block in the through hole of said channel bottom, said cylinder block inner chamber forms said pump chamber, said cylinder block both ends open.
Preferably, said engaging body is a cylinder.
Preferably, said drive plate, driven disc are positioned on the base.
Technique scheme has following beneficial effect: this vacuum pump is when work, and drive plate drives its rotation by driving mechanism, and the engaging body engages with a groove after drive plate rotates to an angle; Rotation along with drive plate; The engaging body moves inward along groove gradually, and then driven plunger is inwardly mobile in pump chamber, because this moment, this pump chamber was communicated with air outlet hole; So just can the gas in this pump chamber be discharged; Meanwhile, can outwards move along the pump chamber at its place through another piston that rigid connector is connected with this piston, and this pump chamber is connected with inlet hole; This pump chamber can be inwardly air-breathing through inlet hole like this, and the drive plate that this shows this vacuum pump rotates a circle and can accomplish once process air-breathing, exhaust.This vacuum pump adopts Maltese cross movement mechanism to have high control precision, makes full use of the mode of circular movement, moves more steady; Efficient is higher, can significantly reduce the vibrations and the noise of the pump housing, and loss is less; Long service life; And need not the intake and exhaust valve block, better tightness when adopting the rotary machine structure to carry out air-breathing, exhaust can realize higher degree of vacuum.
Above-mentioned explanation only is the general introduction of technological scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. this patent is elaborated.
Description of drawings
View when Fig. 1 engages with groove for embodiment of the invention engaging body.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
View when Fig. 3 engages body and groove disengaging for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
Like Fig. 1, shown in 2, should comprise Maltese cross movement mechanism based on the vacuum displacement pump of Maltese cross movement mechanism, this Maltese cross movement mechanism comprises a base 1; Base 1 is provided with a drive plate 2 and a driven disc 3; Drive plate 2 is connected with base 1 through rotating shaft 23, drive plate 2 23 rotations around the shaft, and drive plate 2 is provided with an engaging body 21 and a cam 22; The engaging body 21 be a cylinder, the engaging body 21 and with cam 22 positioned opposite.
Between adjacent two grooves 31 of driven disc, form arc-shaped concave 34; When engaging body 21 breaks away from groove 31; Cam 22 on the drive plate 2 matches with arc-shaped concave 34, and arc-shaped concave 34 can make cam 22 and arc-shaped concave 34 relatively move as guiding face, and this moment, driven disc did not rotate; It is more steady to adopt this structure that drive plate 2, driven disc 3 are rotated, and reduces noise.
As one embodiment of the present of invention, the outer end of piston 33 can also be connected with an end of piston rod, and the other end of piston rod is connected with needle roller, and needle roller is mobilizable to be stuck in the groove 31.When engaging body 21 driven plunger 33 move inward, just can change sliding friction between the two into rolling friction, thereby reach the minimizing loss, the purpose of raising the efficiency like this.
As an alternative embodiment of the invention, for the ease of processing, can cylinder block be set directly in the through hole of groove 31 bottoms, make this cylinder block inner chamber form pump chamber, this moment, opening was all answered at these cylinder block two ends.
Like Fig. 1, shown in 2, this vacuum pump is when work, and drive plate 2 drives its rotation by driving mechanism; Engaging body 21 engages with a groove after drive plate 2 rotates to an angle; Along with the rotation of drive plate 2, engaging body 21 moves inward along groove gradually, and then driven plunger 33 ' pump chamber 32 ' interior inside moving; Because this moment, pump chamber 32 ' be communicated with air outlet hole 37 so just can discharge this pump chamber 32 ' interior gas; Meanwhile; Outwards move with another piston 33 of this piston 33 ' be connected through rigid connector " can along the pump chamber 32 at its place "; This pump chamber 32 " is connected with inlet hole 36; " it is inwardly air-breathing to pass through inlet hole 36, and all the other four pump chambers are connected with 35 motive sealings of pole piece axle, and the pump chamber internal state remains unchanged for this pump chamber 32 like this.The drive plate that this shows this vacuum pump rotates a circle and can accomplish once air-breathing respectively and process exhaust through two relative pump chambers.
As shown in Figure 3; When engaging body 21 broke away from groove 31, cam 22 matched with arc-shaped concave 34, and arc-shaped concave 34 can make cam 22 and arc-shaped concave 34 relatively move as guiding face; This moment, driven disc 3 did not rotate; The even pole piece axle 35 of all pump chambers keeps sealing state, engages with next groove until engaging body 21, and two pump chambers of next group can carry out air-breathing accordingly, bleeding.
This vacuum pump adopts Maltese cross movement mechanism to have high control precision, makes full use of the mode of circular movement, moves more steady; Efficient is higher; Can significantly reduce the vibrations and the noise of the pump housing, loss is less, and need not the intake and exhaust valve block; Better tightness when adopting the rotary machine structure to carry out air-breathing, exhaust can realize higher degree of vacuum.
More than a kind of vacuum displacement pump based on Maltese cross movement mechanism that the embodiment of the invention provided has been carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and application area, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (8)
1. the vacuum displacement pump based on Maltese cross movement mechanism comprises Maltese cross movement mechanism, and said Maltese cross movement mechanism comprises a drive plate and a driven disc; Said driven disc is provided with the even number groove, and said groove radially evenly distributes along said driven disc, and said drive plate is provided with an engaging body; When said engaging body engages with said groove; Said drive plate rotation can drive said driven disc rotation, and it is characterized in that: the bottom of said groove is provided with through hole, and said through hole forms pump chamber; Be provided with the piston that matches with it in the said pump chamber, two pistons that axis is located along the same line connect through rigid connector; Said driven disc is around rotating with a machine mandrel; Said machine mandrel is fixed; Said pump chamber is connected with the motive sealing of said pole piece axle, and said pole piece axle is provided with an inlet hole and an air outlet hole, when said engaging body engages with a groove; The corresponding pump chamber of this groove is communicated with said air outlet hole, and another pump chamber that is positioned at same axis with this pump chamber is communicated with said inlet hole.
2. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1; It is characterized in that: form arc-shaped concave between adjacent two grooves on the said driven disc; Said drive plate is provided with a cam; When said engaging body and said groove broke away from, said cam matched with said arc-shaped concave and relatively moves, and said driven disc does not rotate.
3. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1; It is characterized in that: the outer end of said piston is connected with an end of piston rod; The other end of said piston rod is connected with needle roller, and said needle roller is mobilizable to be stuck in the said groove.
4. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1 is characterized in that: said driven disc is provided with 6 grooves.
5. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1 is characterized in that: the U-groove bevel of said groove for extending along said driven disc radial direction from said driven disc peripheral openings.
6. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1 is characterized in that: be provided with cylinder block in the through hole of said channel bottom, said cylinder block inner chamber forms said pump chamber, said cylinder block both ends open.
7. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1 is characterized in that: said engaging body is a cylinder.
8. the vacuum displacement pump based on Maltese cross movement mechanism according to claim 1 is characterized in that: said drive plate, driven disc are positioned on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110409488.XA CN102392809B (en) | 2011-12-12 | 2011-12-12 | Vacuum displacement pump based on Maltese cross movement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110409488.XA CN102392809B (en) | 2011-12-12 | 2011-12-12 | Vacuum displacement pump based on Maltese cross movement mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392809A true CN102392809A (en) | 2012-03-28 |
| CN102392809B CN102392809B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110409488.XA Active CN102392809B (en) | 2011-12-12 | 2011-12-12 | Vacuum displacement pump based on Maltese cross movement mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791086A (en) * | 2015-04-03 | 2015-07-22 | 金勤杨 | Birotor internal combustion engine |
| WO2018166056A1 (en) * | 2017-03-17 | 2018-09-20 | 李兆勇 | Fish trapping-preventing fish tank |
| CN111054908A (en) * | 2019-12-31 | 2020-04-24 | 兴化市永泰铝业有限公司 | Equipment and process method for manufacturing casting by recycling waste aluminum |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635738A1 (en) * | 1995-09-04 | 1997-03-06 | Toyoda Automatic Loom Works | Variable compression piston compressor |
| US20040028545A1 (en) * | 2002-08-06 | 2004-02-12 | Ta-Chin Wang | Cylinder assembly for a mini air compressor |
| DE102007053750A1 (en) * | 2007-11-12 | 2009-05-14 | Jhou, Wen-San, An-Din | Air compressor has sealing ring, which is in engagement in piston, and outer edge rib of sealing ring extends beyond over piston, to reach sliding engagement with inner edge surface of cylinder |
| CN202370780U (en) * | 2011-12-12 | 2012-08-08 | 苏州盟通利机电设备有限公司 | Positive displacement vacuum pump based on Maltese cross movement mechanism |
-
2011
- 2011-12-12 CN CN201110409488.XA patent/CN102392809B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635738A1 (en) * | 1995-09-04 | 1997-03-06 | Toyoda Automatic Loom Works | Variable compression piston compressor |
| US20040028545A1 (en) * | 2002-08-06 | 2004-02-12 | Ta-Chin Wang | Cylinder assembly for a mini air compressor |
| DE102007053750A1 (en) * | 2007-11-12 | 2009-05-14 | Jhou, Wen-San, An-Din | Air compressor has sealing ring, which is in engagement in piston, and outer edge rib of sealing ring extends beyond over piston, to reach sliding engagement with inner edge surface of cylinder |
| CN202370780U (en) * | 2011-12-12 | 2012-08-08 | 苏州盟通利机电设备有限公司 | Positive displacement vacuum pump based on Maltese cross movement mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791086A (en) * | 2015-04-03 | 2015-07-22 | 金勤杨 | Birotor internal combustion engine |
| CN104791086B (en) * | 2015-04-03 | 2017-12-08 | 金勤杨 | Dual rotor internal combustion engine |
| WO2018166056A1 (en) * | 2017-03-17 | 2018-09-20 | 李兆勇 | Fish trapping-preventing fish tank |
| CN111054908A (en) * | 2019-12-31 | 2020-04-24 | 兴化市永泰铝业有限公司 | Equipment and process method for manufacturing casting by recycling waste aluminum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392809B (en) | 2014-06-04 |
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| DD01 | Delivery of document by public notice |
Addressee: SUZHOU MACTUNI ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 215000 Jiangsu city of Suzhou province Wuzhong District Swan Dang Lu Yuexi Fumin Industrial Zone 5 Applicant after: SUZHOU MACTUNI ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Address before: 215000, room 6107, building 6, Suzhou innovation science and Technology Park, No. 14 tomb, Pingjiang District, Suzhou, Jiangsu Applicant before: SUZHOU MACTUNI ELECTROMECHANICAL EQUIPMENT Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Jiangsu city of Suzhou province Wuzhong District Swan Dang Lu Yuexi Fumin Industrial Zone 5 Patentee after: Suzhou Union Tongli Environmental Technology Co.,Ltd. Address before: 215000 Jiangsu city of Suzhou province Wuzhong District Swan Dang Lu Yuexi Fumin Industrial Zone 5 Patentee before: SUZHOU MACTUNI ELECTROMECHANICAL EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240312 Address after: 215000, Unit 8, Room 1312, Building 2, No. 21 Intercity Road, High tech Zone, Suzhou City, Jiangsu Province (Cluster Registration) Patentee after: Suzhou Menjie Intelligent Technology Co.,Ltd. Country or region after: China Address before: 215000 Building 5, Yuexi Fumin Industrial Zone, tianedang Road, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: Suzhou Union Tongli Environmental Technology Co.,Ltd. Country or region before: China |