CN2052065U - Flexible connection reciprocating vacuum pump - Google Patents
Flexible connection reciprocating vacuum pump Download PDFInfo
- Publication number
- CN2052065U CN2052065U CN 89200338 CN89200338U CN2052065U CN 2052065 U CN2052065 U CN 2052065U CN 89200338 CN89200338 CN 89200338 CN 89200338 U CN89200338 U CN 89200338U CN 2052065 U CN2052065 U CN 2052065U
- Authority
- CN
- China
- Prior art keywords
- piston
- vacuum pump
- pump
- barrier film
- pump shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to a flexible connection reciprocating vacuum pump and adopts at least two left and right symmetry vacuum chambers and eccentric shafts to drive left and right pistons to move in the left and right directions. Simultaneously, a U-shaped double-layer flexible isolating film sealing piston is adopted. The pump body of the structure of the flexible connection reciprocating vacuum pump has no oil and the diseases of the oil pollution of treating material and the corrosion of the pump body caused by the oil immersion piston and the pump body oil immersion piston ring of a traditional vacuum pump can be changed. The flexible connection reciprocating vacuum pump can be used for the food manufacture, the medical manufacture and the electronic processing industry and is an ideal vacuum pump.
Description
The utility model belongs to the vacuum pump application technical field.
Vacuum pump all adopts cylinder type pump case and cylinder type piston at present, space seal ring seal between piston and the pump case, seal ring adopts steel or plastic raw material to manufacture usually, need to use oil immersion between sealing effect piston and pump case and piston and the seal ring for reaching, this vacuum pump causes the pollution that processes raw material easily, thereby the oil molecule of the thermal evaporation that produces of piston and seal ring friction pump case simultaneously enters with gas and makes the band poison that processes raw material in processing raw material.Simultaneously this pump housing plays the chemistry reflection to the oil in the pump in also with the corrosion meson suction pump of raw material when work, cause the emulsification of oil, this oil emulsion has corrosive action to the material of pump, reduces the working life of pump, must constantly change expensive pumping fluid for this reason, thereby cause waste.The harm that the above-mentioned defective of vacuum pump in food processing, in the electronics industry, is especially caused in the middle of medicine processing industry and the medical treatment is even more serious, and toxic gas entered in the human body people's life is worked the mischief when for example gynaecology did induced abortion with vacuum pump.The progress of science, by its be the demand for development of high-grade, precision and advanced electronics industry be widely used in the vacuum pump of pharmaceuticals industry, chemical engineering industry, food and electronics industry pollution-free, nontoxic, do not have oil immersion and have the higher etch-proof vacuum pump pump housing.
The purpose of this utility model is: designing a kind of pump housing is prismatic or the oval-shaped shuttle vacuum pump that is flexible coupling, and making the pump housing not be with oil to have the pump housing does not have oil immersion, corrosion protection, to the pollution-free and nontoxic effect that processes raw material.
It is two vacuum pumps of prismatic or the ellipse and the symmetry of circle that the reciprocating vacuum pump that is flexible coupling adopts rear pump shell and front pump shell mutual group forming shape, and piston is by reconciling nut, on round nut is connected together and holds about slide block.Slide block is connected as a single entity by bearing and eccentric shaft.Pipe joint is positioned on the rear pump shell, and an end has atmosphere rubber to cut down.Soft barrier film is enclosed within the outer garden groove of piston with nylon thread, and piston one end that is arranged in left and right sides vacuum pump has sealing gasket rubber to cut down sheet, cuts down lid and seal ring.The piston that passes rear pump shell has the graphite teflon seal ring on every side.Soft barrier film is the double-deck barrier film of U type, and thermal insulating pad is positioned in the middle of the soft barrier film.Bolt passes front pump shell, soft barrier film, dottle pin, rear pump shell and fuses by nut and common support.Bearing gland, bearing, support arm cover and eccentric shaft are positioned on the common support.The said structure design has realized the purpose of this utility model.
Reciprocating vacuum pump, the pistons reciprocating of being flexible coupling adopts soft barrier film to connect piston structure without piston ring packing, reliable sealing performance is promptly arranged, and makes the pistons reciprocating must oil bath lubrication again.Around the piston rod that passes rear pump shell, there is the graphite teflon to make sealing and lubriation material simultaneously, makes vacuum pump body not be with oil, thereby make vacuum pump have no oil immersion, pollution-free, nontoxic and etch-proof effect.
Below in conjunction with Figure of description the utility model is further described.
Fig. 1 is the utility model overall schematic.
Fig. 2 is an eccentric shaft A-A sectional view.
Fig. 3, a moving C that cuts down who is piston is to view.
Fig. 4 is the air-breathing cut-away view that cuts down.
Embodiment 1 be a kind of reciprocating vacuum pump with left and right sides vacuum pump body as shown in Figure 1, it is shaped as prismatic or ellipse to make common support (29) and rear pump shell (1) and front pump shell (2) with foundry goods or stamping part, about two vacuum pump symmetries, make T shape piston (3) and at one end makes outer garden Baltimore groove and make vent on the piston, the other end making piston thread makes piston rod be connected and hold about slide block (22) as shown in Figure 2 by reconciling nut (19) and round nut (20).With sealing gasket (4), rubber cuts down sheet (6) and cuts down lid (5) seal ring (7) and use sunk screw (8) to be tightened on the piston (3) respectively, thereby the piston vent is covered the moving door system that cuts down that sealing forms piston.Make the hole that piston (3) bar is passed at front pump shell making suction port, rear pump shell, last welded stub connection (15) the atmosphere rubber of rear pump shell (2) cuts down (16) and tightly wraps on pipe joint (15) with nylon thread (14), thus sealed pipe joint (15).
Cut down the suction port on sheet (9) the sealing front pump shell (1) and will cut down sheet (9) with garden sheet featheredge rubber and be fixed on to reach on the front pump shell (2) and seal and air tight with fastening screw trip bolt (10).The soft barrier film of the fluorine rubber of mounting board nylon cloth (11) is enclosed within the outer garden Baltimore groove of piston (3), tightly wraps and seals with nylon thread (13).
Piston (3) bar passes in the hole of rear pump shell (2), has graphite teflon seal ring (17) to tighten the effect that reaches sealed journal bearing with back of the body cap (18) in piston rod and rear pump shell hole on every side.Thermal insulating pad (12) is packed in the middle of the soft barrier film (11) with 8 screws (26) the soft barrier film of front pump shell (2) (11), thermal insulating pad (12) rear pump shell (1) penetrates the back and is connected with common support (29) and tightens with packing ring (27) nut (28), reaches the effect of the good sealing pump housing.
With bearing (31), support arm cover (35) eccentric shaft (23) is respectively charged on the common support (29), installation shaft pressure cap (24) major key oil sealing (34) also is fixed on the common support (29) by screw (30), and back of the body cap (32) (33) belt pulley (36) is installed.
During use, motor drives belt pulley (36) thus rotation makes eccentric shaft (23) motion, because bearing (21) slide block (22) baffle plate (25) is contained in respectively on the eccentric shaft (23), thereby make rotation motion become to-and-fro motion, because rolling bearing (21) rotates with eccentric shaft, and frictional force is less.To be connected 2 pistons (3) bar on the slide block (22) with reconciling till nut and garden nut (20) be adjusted to side-to-side movement and be of convenient length.Described above pump by about two two vacuum chambers forming by front pump shell and rear pump shell formed, each pump housing all has two vacuum chambers simultaneously, what container was taken out in connection is that front pump shell (1) the suction port pump housing simultaneously is the high vacuum chamber, and another side is that rough vacuum chamber, the rough vacuum chamber of exhaust communicates with pipe joint (15).
Because making 360 ° of rotating band movable sliders, eccentric shaft (23) make piston (3) reciprocating, when the gas of piston (3) right vacuum chamber when moving right is increased by piston (3) compression pressure, after featheredge rubber on the front pump shell (2) cuts down sheet (9) pressurized, suction port is blocked, gas can not be refluxed, simultaneously moving on the piston (3) cut down and opens gas behind the door system pressurized and enter the rough vacuum chamber by the high vacuum chamber, simultaneously the air in the rough vacuum chamber of left vacuum chamber since left piston with right piston move in the same way make moving on the left rough vacuum chamber pressure increase piston cut down the door system pressurized after, block the exhaust port on the piston, when rough vacuum chamber internal air pressure during greater than 1 barometric pressure with pipe joint that rear pump shell (1) is connected on atmosphere rubber cut down (16) and open gas is discharged.When slide block drives left and right sides piston when a dextrad left side promotes, the high vacuum chamber of left vacuum chamber is compressed, and air-breathingly cuts down the compacted gas that makes the high vacuum chamber of closing and washes that the moving sheet gas that cuts down that cuts down on the door system enters in the rough vacuum chamber on the piston open.To process raw material during use is communicated with the suction port that is positioned on the front pump shell of the left and right sides in the seal container, can reach the purpose that vacuumizes.Use lining cloth fluoro rubber to make for strengthening the soft barrier film of intensity and sealing.
In a word, the utility model is a kind of rational in infrastructure simple, adopts to connect the reciprocating structure, has or not oil immersion, pollution-free, nontoxic, the advantage of not having corrosion pump housing material, can be widely used in grocery trade, chemical industry, pharmacy industry and electronics industry, be a kind of comparatively desirable vavuum pump.
Claims (2)
1, reciprocating vacuum pump is flexible coupling, formed by piston and vacuum pump, it is characterized in that, rear pump shell (1) and front pump shell (2) are formed it and are shaped as the rib type, two vacuum pumps of round or disciform symmetry, piston (3) is connected by conciliation nut (19) round nut (20) and holds about slide block (22), slide block (22) is connected as a single entity by bearing (21) and eccentric shaft (23), pipe joint (15) is positioned at the last end of rear pump shell (1) has atmosphere rubber to cut down (16), soft barrier film (11) is enclosed within the outer garden groove of piston (3), piston one end that is arranged in left and right sides vacuum pump has sealing gasket (4) rubber to cut down sheet (6) to cut down lid (5) and seal ring (7), the piston (3) that passes rear pump shell (1) has graphite teflon seal ring (17) on every side, soft barrier film (11) is the double-deck barrier film of U type, thermal insulating pad (12) is positioned in the middle of the soft barrier film (11), bolt (26) passes the soft barrier film of front pump shell (2) (11) dottle pin (12) rear pump shell (1) and fuses by nut (28) and common support (29), and bearing gland (24) bearing (31) support arm cover (35) eccentric shaft (23) is positioned on the common support (29).
2, by the described reciprocating vacuum pump that is flexible coupling of claim 1, it is characterized in that: the soft barrier film that is arranged in left and right sides pump case is made with lining cloth fluoro rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89200338 CN2052065U (en) | 1989-01-11 | 1989-01-11 | Flexible connection reciprocating vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89200338 CN2052065U (en) | 1989-01-11 | 1989-01-11 | Flexible connection reciprocating vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2052065U true CN2052065U (en) | 1990-01-31 |
Family
ID=4858446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89200338 Expired - Lifetime CN2052065U (en) | 1989-01-11 | 1989-01-11 | Flexible connection reciprocating vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2052065U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011054189A1 (en) * | 2009-11-06 | 2011-05-12 | 宁波拓普制动***有限公司 | Electronic vacuum pump |
| CN104481852A (en) * | 2014-10-28 | 2015-04-01 | 上海空间推进研究所 | Compensation sylphon component and mounting method thereof |
| CN105370560A (en) * | 2015-12-08 | 2016-03-02 | 米顿罗工业设备（上海）有限公司 | Fatigue testing machine for diaphragms of diaphragm pump |
| CN106438305A (en) * | 2016-10-31 | 2017-02-22 | 徐林 | Solution of vacuum pump |
-
1989
- 1989-01-11 CN CN 89200338 patent/CN2052065U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011054189A1 (en) * | 2009-11-06 | 2011-05-12 | 宁波拓普制动***有限公司 | Electronic vacuum pump |
| CN104481852A (en) * | 2014-10-28 | 2015-04-01 | 上海空间推进研究所 | Compensation sylphon component and mounting method thereof |
| CN104481852B (en) * | 2014-10-28 | 2016-08-31 | 上海空间推进研究所 | A kind of compensation capsule stack and installation method thereof |
| CN105370560A (en) * | 2015-12-08 | 2016-03-02 | 米顿罗工业设备（上海）有限公司 | Fatigue testing machine for diaphragms of diaphragm pump |
| CN105370560B (en) * | 2015-12-08 | 2018-06-26 | 米顿罗工业设备（上海）有限公司 | A kind of diaphragm of diaphragm pump fatigue tester |
| CN106438305A (en) * | 2016-10-31 | 2017-02-22 | 徐林 | Solution of vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |