CN107701446B

CN107701446B - Rotary-vane vaccum pump

Info

Publication number: CN107701446B
Application number: CN201710658021.6A
Authority: CN
Inventors: 宣星波
Original assignee: ZHEJIANG GREENCO INDUSTRY Co Ltd
Current assignee: ZHEJIANG GREENCO INDUSTRY Co Ltd
Priority date: 2017-08-03
Filing date: 2017-08-03
Publication date: 2019-03-05
Anticipated expiration: 2037-08-03
Also published as: CN107701446A

Abstract

The invention discloses a kind of rotary-vane vaccum pump, including the pump housing, it is set to the intracorporal rotor chamber of the pump and is set to the indoor rotating mechanism of the rotor chamber；The rotating mechanism includes rotor and multiple rotary components on the rotor；The rotary components include the external member on the rotor and the sliding part in the external member；It is equipped with a sliding cavity between the sliding part and the external member, is equipped with gas in the sliding cavity；The sliding part lateral wall is equipped with a sealant, and the external member end is equipped with a sealing ring matched with the sealant.The present invention makes sliding part automatic telescopic by the way of filling gas, carries out automatic telescopic using spring instead of traditional blade, and avoiding traditional blade, extruding is flexible, and elasticity, which is deteriorated, causes the entire pump housing to fail because spring repeatedly squeezes for a long time；Therefore the service life for extending vacuum pump, increases economic benefit.

Description

Rotary-vane vaccum pump

Technical field

The invention belongs to small size vacuum pump technical fields, more particularly, to a kind of rotary-vane vaccum pump.

Background technique

Rotary-vane vaccum pump is that have structure simple using most widest vacuum pump bodies in existing vacuum pump, The advantages that accuracy of manufacture demand is not high and compact-sized；But existing rotary-vane vaccum pump passes through eccentrically mounted rotor band Dynamic blade rotation, is mounted with spring in blade, but spring it is multiple it is flexible after, phenomena such as being easy to happen deformation, bullet Property reduce；Cause blade and rotor chamber the distance between phenomena such as increasing, gas leakage occurs so as to cause the mistake of entire vacuum pump Effect.

And through slot rotor chamber is not handled gas in air inlet so that gas can carry it is certain miscellaneous Matter enters in rotor chamber, so that the abrasion between blade and rotor chamber inner wall is very big, service life is short.

Summary of the invention

The present invention for overcome the deficiencies in the prior art, provides that a kind of sealed precision is high, rotary vane type with long service life is true Sky pump.

To achieve the goals above, it the invention adopts the following technical scheme: a kind of rotary-vane vaccum pump, including the pump housing, sets In the intracorporal rotor chamber of the pump and it is set to the indoor rotating mechanism of the rotor chamber；The rotating mechanism includes rotor and sets In multiple rotary components on the rotor；The rotary components include the external member on the rotor and are set to the external member On sliding part；It is equipped with a sliding cavity between the sliding part and the external member, is equipped with gas in the sliding cavity；The sliding part Lateral wall is equipped with a sealant, and the external member end is equipped with a sealing ring matched with the sealant；The rotor chamber Room upper end is equipped with an air intake duct, and the air intake duct is equipped with a filter assemblies；The filter assemblies include the first mistake to raise upward Filter part and the second filtration members to lower recess.By way of air pressure sliding part is stretched in the present invention, instead of biography System by spring carry out it is flexible in the way of, and then avoid in traditional rotary-vane vaccum pump spring because it is long-term it is flexible caused by bullet Phenomena such as deformation occurs or the flexibility decrease of spring for spring, leads to entire failure of vacuum pump；First filtration members are upward convex It rises, can play and primary filtration is carried out to the impurity in gas, while because of its protrusion, being nested into suction convenient for such as emulsion tube etc. On tracheae；The setting of second filtration members can carry out secondary filter to gas, and can store the impurity filtered out；Ensure gas Impurity in body will not enter in rotor chamber.

Further, the rotor chamber is externally provided with a cooling chamber, is filled with coolant liquid in the cooling chamber；The cooling A cooling component for cooling down to the coolant liquid is connected on chamber；It, can be effectively to rotor chamber by the cooling component Cool down, and then the temperature that entire chamber is effectively guaranteed is kept constant, avoid because of chamber internal cause frictional resistance heat production, Cause the temperature of chamber to increase, reduces the efficiency of vacuum pump.

Further, it is described cooling component include end be connected to the cooling chamber liquid outlet pipe, with the outlet tube The input duct and the cooling fin being fixedly arranged in the input duct and liquid outlet pipe that road matches；By the setting to coolant liquid Cool down, so that the temperature of entire coolant liquid is kept constant, further ensure that the temperature in entire rotor chamber is protected It holds constant, ensure that the efficiency of entire vacuum pump.

Further, the cooling chamber is equipped with a lock chambers, and the lock chambers are equipped with a locking member, the outlet tube Road is equipped with the detent slot matched with the locking member, and the locking member includes retaining ring and fixed ring；In the retaining ring Equipped with a stretch rod, the stretch rod passes through the fixed ring；The fixed ring passes through a connecting rod and the locking cavity wall It is fixedly connected with；It is cooperated by retaining ring and detent slot, thus after liquid outlet pipe enters cooling cavity, it can be quickly right Cooling cavity is fixed, and by pulling stretch rod, so that retaining ring is locked, and then can play fixation to liquid outlet pipe Effect, while also ensuring sealing effect when pipeline connection, situations such as avoiding the occurrence of leakage.

Further, the lock chambers be equipped with a first pulley, second pulley and third pulley, the first pulley, Second pulley and third pulley cooperate, and the stretching boom end is connected to a wirerope, and the wirerope is respectively from described the It is passed through on one pulley, second pulley and third pulley, the steel cord ends are connected to a switch block, and the switch block includes Switch main body, the slider being connected with the Switch main body end and the operating parts being connected with the Switch main body；The cooling Cavity wall is equipped with the limit film matched with the slider, and the operating parts is equipped with a hook, the locking cavity outer wall It is equipped with the latch matched with the hook；By the intercombination of three ring pulleys, so that the effect of pulley blocks is realized, So that the strength that very little can be used can be such that retaining ring locks when locking to liquid outlet pipe；Simultaneously by opening The latch on hook and locking cavity outer wall shut cooperates, and hook can be stirred, so that hook after retaining ring locking It cooperates together with latch, therefore retaining ring can be kept to be in locking state, simplify the process of operation, so that operation It is more convenient.

Further, the lock chambers are equipped with an entrance, and the entrance is equipped with an annular groove, the ring Slot is equipped with a sealant, and the sealant has elasticity；By the setting of sealant, liquid outlet pipe can be locked in locking member While tight, sealing effect is played, it is ensured that the coolant liquid in whole device will not leak out from entrance.

Further, first filtration members are spirally connected with the air intake duct；The air intake duct be equipped with a protrusion, described second Filtration members are equipped with a flanging matched with the protrusion；By the way that the first filtration members are spirally connected, fixed convenient for the first filtration members On the air intake duct, situations such as the first filtration members will not be fallen off during use ensure that；By by the second mistake Part is filtered to set up onto the air intake duct, it is simple and convenient at this, while convenient for taking the second filtration members when needing to clean Out.

Further, the sliding part end is equipped with the elastic layer of a shiny surface；By the setting of the smooth elastic layer, Into one the leakproofness that ensure that entire chamber and reduce frictional resistance between sliding part and rotor chamber.

In conclusion the invention has the following advantages that the present invention realizes the rotary components on rotor with pneumatic Mode promotes the sliding part on rotor, to increase the service life of whole device, avoid traditional spring because It is repeatedly flexible for a long time that deformation occurs and elastic the case where reducing；It is cold to rotor chamber progress by being set to external cooling chamber simultaneously But, it is ensured that vacuum pump not will increase in the lower rotor part cavity temperature that works long hours, therefore ensure that the work effect of whole device Rate.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention.

Fig. 2 is the structural schematic diagram of slide assemblies of the present invention.

Fig. 3 is the structural schematic diagram of filter assemblies of the present invention.

Fig. 4 is retaining ring structural schematic diagram of the invention.

Fig. 5 is sealing schematic diagram of a layer structure of the invention.

Fig. 6 is the main view of locking member of the invention.

Specific embodiment

In order to make those skilled in the art better understand the present invention program, below in conjunction in the embodiment of the present invention Attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.

As shown in figures 1 to 6, a kind of rotary-vane vaccum pump, including the pump housing 1, motor and the rotor chamber in the pump housing 1 Room 2；Wherein the rotor chamber 2 is a tubular cavity being located in the pump housing 1, the cavity wall surface light of the tubular cavity It is sliding；A rotating mechanism 3 is mounted in the rotor chamber 2, which includes one and be eccentrically mounted at rotor chamber Rotor 4 in room 2 and three rotary components being mounted on rotor 4；The rotor is connected with the motor；The rotation group Part 5 includes an external member 51 and sliding part 52, specifically, one end of the external member 51 is mounted on the rotor 4, which is close Envelope setting；The other end of external member 51 is opening setting, wherein the opening is recessed inwardly, so that opening bore reduces, is opened at this A sealing ring 511 is mounted on mouthful, which is a rubber ring, and is glued on the opening inner wall；It is described A sliding cavity 53 is equipped in external member 51, described 52 one end of sliding part is equipped with a connector, which is actively located in the cunning In dynamic chamber 53, and the connector lateral wall is equipped with a sealant 521, which is one and the sealing ring 511 The identical rubber layer of material, to be sealing cooperation between 53 inner wall of connector and sliding cavity.

Further, gas, the preferred nitrogen of the gas are filled in the sliding cavity 53；In order to reduce entire rotation group Frictional force inside part 5, while can effectively increase air-tightness；One is coated on the sealant 521 and the inner wall of external member 51 Layer lubricating oil；One layer of lubricating oil is also coated between the outer wall and the sealing ring 511 of the sliding part 52；In the sliding part 52 end is equipped with one layer of elastic layer 522, which is made via TPE elastic material, the elastic layer 522 Surface is smooth, and matches with the inner wall of the rotor chamber 2, plays the effect of sealing.

In order to avoid because leading to entire rotor chamber because of frictional heat generation between 2 inner wall of sliding part 52 and the rotor chamber 2 temperature increases, we are provided with a cooling chamber 6 in the outer of the rotor chamber 2, are filled with cooling inside the cooling chamber 6 Liquid, the coolant liquid can be water；It is connected to a liquid outlet pipe 71 in one end of the cooling chamber 6 simultaneously, the other end is provided with A piece input duct 72, the inlet tube 72 are cooperated with the liquid outlet pipe 71 by a small-sized water pump 79, so that Coolant liquid recycles in the cooling chamber 6；The liquid outlet pipe 71 and the input duct 72 are all made of stainless steel；In order to The further cooling effect for guaranteeing coolant liquid, the liquid outlet pipe 71 is S-shaped laying, and is in the outside of the liquid outlet pipe 71 That uniformly secures multiple cooling fins 77.

Specifically, in order to avoid leakage occurs when the liquid outlet pipe is inserted into the cooling chamber, described It is mounted with a lock chambers 61 on cooling chamber 6, a locking member is mounted in the lock chambers 61, wherein the locking member includes Retaining ring 621 and fixed ring 622, it is closed annulus that the retaining ring 621, which is via one made of steel wire, in the retaining ring Port there are two being set on 621, wherein it is connected to a stretch rod 623 on a port, the stretch rod 623 and the retaining ring 621 are integrally formed, while the stretch rod 623 connected passes through in the fixed ring 622；The fixed ring 622 with it is described One end of retaining ring 621 welds together, and a connecting rod 624 has also been welded in the fixed ring 622, which is The inner wall of one metallic rod, the connecting rod 624 and the lock chambers 61 is fixed together；Simultaneously at the end of the liquid outlet pipe 71 A circle detent slot 710 is additionally provided in portion, 710 1 concave ring of detent slot；An entrance, the pipe are equipped in the lock chambers 61 Road entrance is a hollow tube body, while an annular groove 612 is equipped on the entrance, when using retaining ring 621, Institute's retaining ring 621 is pierced by the annular groove 612, in order to guarantee that device will not leak, is additionally provided on the annular groove 612 One circle sealant 613, the sealant 613 are all shut annular groove 612, and the sealant 613 is made of elastic rubber, Therefore when retaining ring 621 is locked, elastic deformation occurs for sealant 613, locks to liquid outlet pipe 71.

Further, be also mounted a first pulley 601 in the lock chambers 61, a second pulley 602 and Third pulley 603, the first pulley 601 and the third pulley 603 are parallel to each other, and the second pulley 602 is set to described The lower section of first pulley 601 and third pulley 603, and the size of three pulleys and shape are all just the same；Described Steel cable 625 is connected on the end of stretch rod 623, which passes through from three pulleys, so as to form one A pulley blocks；After the wirerope 625 is passed through from third pulley 603, it is connected to a switch block 90；The switch block 90 packet The slider 902 for including Switch main body and being fixedly connected with the end of the Switch main body；The Switch main body is a metal cylinder, institute Stating slider 902 is a sheet metal welded together with the metal column, in order to which switch block 90 is fixed, in institute It states and is mounted with a limit film 904 on the inner wall of lock chambers 61, the limit film 904 is sheet metal, cunning when installation Movable plate 902 is inserted between 61 inner wall of the limit film 904 and the lock chambers；Outer wall of the Switch main body from cooling chamber 6 It is pierced by the middle, and has been also connected with a L-shaped operating parts 903 on the Switch main body, which is equipped with a card Hook 905；The operating parts 903 is made through metal, while one layer of garment bag has been wrapped up on operating parts 903, in the cooling The outer wall of chamber 6 is equipped with multiple latches 906, therefore when switch block 90 is fixed, the hook 905 is snapped onto In the latch 906.

Further, the top of the rotor chamber 2 is equipped with an air intake duct 21, in 2 side locations of rotor chamber It is equipped with an exhaust outlet 11；One end of the air intake duct 21 connects with the rotor chamber 2, and with 2 shape of rotor chamber At access, so that gas can be entered in the rotor chamber 2 by air intake duct 21；It is set on the other end of the air intake duct 21 Have filter assemblies 8, which includes the first filtration members 81 and the second filtration members 82, first filtration members 81 be to The filter screen of upper protrusion, first filtration members 81 are spirally connected with the air intake duct 21；Second filtration members 82 are to lower recess The edge of filter screen, second filtration members 82 is turned-out, forms a flanging 821；One is equipped on the air intake duct 21 The protrusion 211 matched with the flanging 821, so that the second filtration members 82 can be directly set up on air intake duct 21.

Simultaneously in order to reduce the frictional force between 2 inner wall of sliding part 52 and rotor chamber, pacify above the rotor chamber 2 One is filled for holding the lubricating cavity 9 of lubricating oil, the bottom surface of the lubricating cavity 9 is one from the inclined-plane by being tilted to the left, in institute The bottom for stating lubricating cavity 9 is mounted with a flowline 91 for being input to lubricating oil in rotor chamber 2；Therefore in vacuum pump When work, entered in the rotor chamber 2 described in the lubricating oil through flowline 91, in sliding part 52 and rotor chamber 2 Wall plays lubricating action, reduces frictional force；The lubricating oil is entering in the rotor chamber 2, drives through sliding part 52 described Lubricating fluid moves, and is discharged out of described rotor chamber by the exhaust outlet 11；The exhaust outlet 11 and the lubrication Chamber 9 communicates, so that lubricating oil drops into lubricating cavity 9 from newly.

An outlet pipe 18, and the outlet pipe 18 and 9 phase of lubricating cavity are equipped on the top of the lubricating cavity 9 Logical, the gas in lubricating cavity 9 can be discharged by the outlet pipe 18；It is connected in the junction of outlet pipe 18 and lubricating cavity 9 One baffle 19, the baffle 19 are to be obliquely installed, when lubricating cavity is splashed by the air impingement that is discharged in exhaust outlet 11 When, the lubricating oil to have splashed can be stopped by baffle 19, to effectively prevent lubricating oil from entering in outlet pipe 18, no It can follow out gas together by being discharged in outlet pipe 18.

Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment should fall within the scope of the present invention.

Claims

1. a kind of rotary-vane vaccum pump including the pump housing (1), the rotor chamber (2) being set in the pump housing (1) and is set to described turn Rotating mechanism (3) in sub-chamber (2)；It is characterized by: the rotating mechanism (3) include rotor (4) and be set to the rotor (4) multiple rotary components (5) on；The rotary components (5) include external member (51) and the sliding on the external member (51) Part (52)；A sliding cavity (53) are equipped in the external member (51), described sliding part (52) one end is equipped with a connector, the connector It is actively located in the sliding cavity (53)；Gas is equipped in the sliding cavity (53), the connector lateral wall is equipped with one Sealant (521)；The external member (51) is equipped with the opening passed through for sliding part (52), and the opening inner wall is equipped with and sliding part (52) sealing ring (511) matched;Rotor chamber (2) upper end is equipped with an air intake duct (21), and the air intake duct (21) sets There are a filter assemblies (8)；The filter assemblies (8) include the first filtration members (81) to raise upward and the second mistake to lower recess It filters part (82);The rotor chamber (2) is externally provided with a cooling chamber (6), and coolant liquid is filled in the cooling chamber (6)；It is described cold But a cooling component (7) for cooling down to the coolant liquid is connected on chamber (6);The cooling component (7) includes being connected to institute It the liquid outlet pipe (71) for stating cooling chamber (6), the input duct (72) matched with the liquid outlet pipe (71) and is fixedly arranged on described Cooling fin (77) in liquid outlet pipe (71);The cooling chamber (6) is equipped with a lock chambers (61), on the lock chambers (61) Equipped with a locking member, the liquid outlet pipe (71) is equipped with the detent slot (710) matched with the locking member；The locking member Including retaining ring (621) and fixed ring (622), the retaining ring (621) is equipped with a stretch rod (623), the stretch rod (623) fixed ring (622) are passed through；The fixed ring (622) passes through a connecting rod (624) and the lock chambers (61) inner wall It is fixedly connected with.

2. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that: the lock chambers (61) are equipped with one the One pulley (601), second pulley (602) and third pulley (603), the first pulley (601), second pulley (602) and Three pulleys (603) cooperate, and stretch rod (623) end is connected to a wirerope (625), and the wirerope (625) is respectively Across wirerope (625) end connects from the first pulley (601), second pulley (602) and third pulley (603) Have a switch block (90), the switch block (90) includes Switch main body, the slider being connected with the Switch main body end (902) and with the Switch main body operating parts (903) being connected；Cooling chamber (6) inner wall is equipped with and the slider (902) limit film (904) matched, the operating parts (903) are equipped with a hook (905), lock chambers (61) outer wall It is equipped with the latch (906) matched with the hook (905).

3. a kind of rotary-vane vaccum pump according to claim 2, it is characterised in that: the lock chambers (61) are equipped with a pipe Road entrance, the entrance are equipped with an annular groove (612), and the annular groove (612) is equipped with a sealant (613), described close Sealing (613) has elasticity.

4. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that: first filtration members (81) with it is described Air intake duct (21) is spirally connected；The air intake duct is equipped with a protrusion (211), and second filtration members (82) are equipped with one and the protrusion (211) flanging (821) matched.

5. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that: sliding part (52) end is equipped with one Elastic layer (522).