CN104976105B - Vacuum diaphragm pump - Google Patents
Vacuum diaphragm pump Download PDFInfo
- Publication number
- CN104976105B CN104976105B CN201410676257.9A CN201410676257A CN104976105B CN 104976105 B CN104976105 B CN 104976105B CN 201410676257 A CN201410676257 A CN 201410676257A CN 104976105 B CN104976105 B CN 104976105B
- Authority
- CN
- China
- Prior art keywords
- camshaft
- casing
- pump chamber
- bearing unit
- diaphragm
- 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.)
- Active
Links
Abstract
The present invention provides a kind of with it is possible to realize the vacuum diaphragm pumps for the casing structure for simplifying manufacturing process and seeking reduction manufacturing cost.By a pair of of casing halfbody (22,23) for will being formed by synthetic resin in conjunction with and form the casings (21) of vacuum diaphragm pump (11).Each casing halfbody includes a pair of of the board portion for having the baseplate part (22a, 23a) of diaphragm mounting portion and being provided projectingly respectively from the opposite both sides of the baseplate part towards another casing halfbody direction, it is equipped with bearing unit clamping part (22c, 23c) on the top in each board portion, bearing unit clamping part (22c, 23c) is used for the bearing unit (20) at the both ends of bearer cams axis (12a) for clamping when combining the top in two board portions each other.
Description
Technical field
The present invention relates to a kind of vacuum diaphragm pumps, specifically, are related to the driving mechanism for supporting vacuum diaphragm pump
The construction of casing.
Background technique
As vacuum diaphragm pump, there is a kind of following vacuum diaphragm pump comprising: pump chamber, by being installed on connecting rod
Diaphragm and expand or shrink, which utilizes moves back and forth set on the crank mechanism of rotary shaft；Via air inlet side check-valves
The intake channel being connected with the pump chamber；And the exhaust channel being connected via exhaust side check-valves with the pump chamber.In this way
Vacuum diaphragm pump in, there is also the vacuum diaphragm pumps of following one kind: using casing bearing using become driving source motor as generation
The driving mechanism of table, rotary shaft etc., makes casing be also used as shell.(for example, referring to patent document 1.).
Patent document 1: Japanese Unexamined Patent Publication 6-185466 bulletin
Summary of the invention
Problems to be solved by the invention
The casing of previous vacuum diaphragm pump is mechanical by applying to metal profile with a higher rigidity, die casting etc.
It processes and forms the casing for having mechanism and precision in need.Therefore, to spend sometimes machining etc. needed for labour and when
Between, cost and also need to be surface-treated sometimes, to keep manufacturing process more, therefore also more demanding machining accuracy is led
It causes the manufacturing cost of casing soaring and increase the price of vacuum diaphragm pump.
Therefore, the object of the present invention is to provide the vacuum diaphragm pumps with following casing structure: the casing structure can
Ensure important document required by the casing of vacuum diaphragm pump, and seeks to simplify manufacturing process and seek to reduce manufacturing cost.
The solution to the problem
In order to realize the purpose, the present invention provides a kind of vacuum diaphragm pump comprising: camshaft, it is defeated with motor
Shaft integrally rotates；Crank mechanism works in the case where the rotation of the camshaft drives；Connecting elements, can be in the song
Axis mechanism drives lower and moves back and forth along the horizontal direction with the axis vertical take-off of the camshaft；Diaphragm is installed respectively
In the both ends of the connecting elements；The volume of a pair of of pump chamber, a pair of pump chamber is expanded or shunk by the movement of the diaphragm；With
The intake channel and exhaust channel that each pump chamber is connected；Air inlet side check-valves is used to limit fluid from the pump chamber to described
Intake channel adverse current；And exhaust side check-valves, it is used to limit fluid from the exhaust channel to the pump chamber adverse current, by institute
State the casing that camshaft, the crank mechanism and the connecting elements are accommodated in rectangular-shape, and by the two of the camshaft
End is respectively retained a pair of of opposite wall of the casing by bearing unit, which is characterized in that the casing is by will be by
A pair of of casing halfbody that synthetic resin is formed is combined and is formed, each casing halfbody include have the baseplate part of diaphragm mounting portion with
A pair of of the board portion being provided projectingly respectively from the opposite both sides of the baseplate part towards another casing halfbody direction, in each knot
The top in plywood portion is equipped with bearing unit clamping part, which is used for the top in two board portions is mutual
In conjunction with when clamp the bearing unit.
Also, vacuum diaphragm pump of the invention is characterized in that, each casing halfbody is to be compressed into respectively by injection
What shape method was formed, the synthetic resin is PC-GF.In addition, vacuum diaphragm pump of the invention is characterized in that, each casing
Halfbody is equipped with guide portion in each board portion respectively, which is used to guide in two board portions to preparatory when combining
The binding site of setting, the bearing unit include the axis that the camshaft is supported in a manner of enabling the camshaft to rotate
It holds and the bear box for keeping the periphery of the bearing, outer surface and the bearing unit clamping part in the bear box
Inner surface is equipped with the holding section that bear box rotation and the movement of bear box in the axial direction is prevented for being mutually clamped.
The effect of invention
Using vacuum diaphragm pump of the invention, formed using synthetic resin including with pump chamber forming portion baseplate part and
Casing halfbody including board portion with bearing unit clamping part, especially, to PC-GF (glass fiber reinforced polyester carbonic acid
Ester) as fiber-reinforced resin carry out ejection compress moulding method and formed, be capable of forming the machine of dimensional accuracy and excellent strength
Shell halfbody.By being incited somebody to action in the state of the bearing unit of the bearing unit clamping part clamp cam axis of the such casing halfbody of utilization
Two casing halfbodies combine, can in a manner of enabling the camshaft as one of driving mechanism to rotate bearer cams axis and shape
At the casing with the diaphragm mounting portion for being used to form pump chamber, so as to be simply manufactured in the case where not being machined into
The casing of predetermined function required by casing with vacuum diaphragm pump.
In addition, two casing halfbodies can be made defined by the way that guide portion is arranged in the board portion of casing halfbody in advance
Position reliably combines.Also, by the way that mutually card is arranged in the inner surface of the outer surface of bearing unit and bearing clamping part in advance
The rotation prevention portion of conjunction can utilize bearing clamping part more reliably bearing support unit.
Detailed description of the invention
Fig. 1 is the cross-sectional plan view for indicating the vacuum diaphragm pump of one embodiment of the invention.
Fig. 2 is the right view of the vacuum diaphragm pump.
Fig. 3 is the main view of the vacuum diaphragm pump.
Fig. 4 is the exploded perspective view of major part.
Fig. 5 is the explanatory diagram of the working condition of vacuum diaphragm pump.
Specific embodiment
As shown in Figure 1 to 4, the vacuum diaphragm pump 11 of the present embodiment includes: motor 12；Camshaft 12a, and from the horse
Up to 12 in the horizontal direction output shaft 12b outstanding be connected and rotated；Crank mechanism 13, by being set to the camshaft
The eccentric cam 13a of 12a works；Connecting elements 14 is installed on the crank mechanism 13, can be along orthogonal with camshaft 12b
Horizontal direction move back and forth；Diaphragm 15,16, the diaphragm 15,16 are respectively arranged in the both ends of the connecting elements 14；One
To pump chamber 17,18, the volume of a pair of pump chamber 17,18 is expanded or shunk by the advance and retreat of the diaphragm 15,16；With 17 phase of pump chamber
The intake channel 17a and exhaust channel 17b of connection；The intake channel 18a and exhaust channel 18b being connected with pump chamber 18；Air inlet
Side check-valves 17c, 18c, air inlet side check-valves 17c, the 18c are for limiting air from pump chamber 17,18 to intake channel 17a, 18a
Countercurrently；And exhaust side check-valves 17d, 18d, exhaust side check-valves 17d, the 18d for limit air from exhaust channel 17b,
18b is to the adverse current of pump chamber 17,18.
Crank mechanism 13 includes: eccentric cam 13a, with the mode orthogonal with camshaft 12a be installed on camshaft 12a and
It is integrally formed and is rotated with camshaft 12a；Driven member 13c, rotatably by the 1st bearing 13b
It is linked to the periphery of eccentric cam 13a；And the connecting elements 14, the company by the 2nd bearing 13d and connecting pin 13e
It ties in driven member 13c.Eccentric cam 13a is mounted to the circular component of the periphery of camshaft 12a, with the eccentric cam
The central axis of 13a is configured from the mode that the central axis of camshaft 12a is located at different positions.Driven member 13c is formed as
Substantially tumbler shape with the large-diameter portion 13f for being formed in one end and the small diameter portion 13g for being formed in another side, this is driven
Component 13c is connected by the 1st bearing 13b for being installed on the mounting hole formed on large-diameter portion 13f with eccentric cam 13a
Knot, and connecting pin 13e is installed by the 2nd bearing 13d for being installed on the mounting hole formed on small diameter portion 13g, in the company
The connecting elements 14 is linked on knot pin 13e.
Connecting elements 14 is used to cover the frame structure of the one side and both ends of the surface of driven member 13c across driven member 13c
It engages between the board member 14b of the another side of part 14a and covering driven member 13c, is formed in the one end of connecting elements 14
There is the through hole 14c being made of long hole for running through for camshaft 12a and connecting elements 14 being allowed to move in the horizontal direction, is connecting
The another side of component 14 is formed with for the connecting pin embedded hole chimeric with the connecting pin 13e that driven member 13c is connected
14d.Also, mounting portion 14e, 14e for installing diaphragm 15,16 are equipped at the both ends of frame component 14a.In addition, connection structure
The length in the horizontal direction of part 14 is formed as the following length: 16, another diaphragm when a diaphragm 15 is located at top dead centre
In lower dead center, when another diaphragm 16 is located at top dead centre, one diaphragm 15 is located at lower dead center.In addition, on camshaft 12a
The two sides of crank mechanism 13 are separately installed with the balance element (balance weight) 19 for making crank mechanism 13 steadily work, in cam
The both ends of axis 12a are separately installed with bearing unit 20,20.
Tubular of the bearing unit 20 by being coated at the bearing 20a of camshaft 12a and for keeping the periphery of bearing 20a
Bear box 20b is formed.The outer surface of bear box 20b have hexagon horn-like part 20c and with the hexagon inscribe
Each vertex of circular rounded portions 20d, horn-like part 20c become the outer peripheral surface state outstanding from rounded portions 20d.In addition, at this
In embodiment, come more reliably bearer cams axis 12a's using the bearing bigger than the bearing of base portion side (motor-side) in tip side
Top end part, to prevent that the precession of the equinoxes moves.
The crank mechanism 13 being thusly-formed is accommodated in the casing 21 of rectangular-shape.Casing 21 is by a pair of of casing halfbody
22, it 23 combines and is formed, which is such to PC-GF (glass fiber reinforced polycarbonate)
Fiber-reinforced resin carries out ejection compress moulding method and is formed, and each casing halfbody 22,23 includes: baseplate part 22a, 23a, the base
Plate portion 22a, 23a have the diaphragm mounting portion 21a for installing the diaphragm 15,16；And a pair of of board portion 22b, 23b,
A pair of board portion 22b, 23b are respectively from the opposite both sides of the baseplate part 22a, 23a towards another casing halfbody direction
It is provided projectingly.Baseplate part 22a, 23a are formed by same shape, in contrast, setting respectively on the top of each board portion 22b, 23b
There are bearing unit clamping part 22c, 23c, which is used for by the top of two board portion 22b, 23b
End each other in conjunction with when clamp the bearing unit 20,20 and and be fixed, which is used for so that described convex
The mode that wheel shaft 12a can rotate supports the both ends of the camshaft 12a.
Top end face (divisional plane) 22d, 23d of described each board portion 22b, 23b between baseplate part 22a, 23a in
Centre portion, a bearing unit clamping part 22c are formed to have for the bearing unit 20 insertion for top end face 22d
The concavity of groove width, bearing unit clamping part 22c are equipped with the chamfered groove portion being embedded in for the half of the horn-like part 20c in trench bottom
The semicircle groove portion 22f of 22e and the half insertion for the rounded portions 20d.Another bearing unit clamping part 23c is relative to top
Be formed as being embedded into the convex in the concavity of one bearing unit clamping part 22c for the 23d of face, clamped in bearing unit
The top end part of portion 23c is equipped with for the chamfered groove portion 23e of the other half insertion of the horn-like part 20c and for the another of the rounded portions 20d
The semicircle groove portion 23f of half insertion.Also, it is equipped in the concavity medial surface of bearing unit clamping part 22c along board portion
The guiding groove 22g that the bonding position of 22b, 23b extend, and insertion is equipped in the protruding part lateral surface of bearing unit clamping part 23c
To the guidance raised line 23g in the guiding groove 22g.
Two board portion 22b, 23b form the casing 21 for being accommodated with crank mechanism 13 by the following method: by pre-assembly
The bearing unit 20,20 at the both ends of the camshaft 12a in crank mechanism 13 to get up the phase according to the angle of horn-like part 20c respectively
Accordingly it is embedded in any one casing halfbody in casing halfbody 22,23, the board portion in a such as casing halfbody 22
The bearing unit clamping part 22c of 22b, later, by a casing while making guiding groove 22g and guidance raised line 23g fastens
Halfbody 22 is combined with another casing halfbody 23, and runs through fastening bolt 22i in a manner of penetrating through two casing halfbodies 22,23
It is fastened after bolt-through portion 22h, 23h of setting using nut.
In this way, being formed as presetting a pair of of casing half of shape to fiber-reinforced resin progress ejection compress moulding method
A pair of casing halfbody 22,23 is combined and is formed and be used to store by camshaft 12a, driven member 13c, connection by body 22,23
The casing 21 for the crank mechanism 13 that component 14 etc. assembles, does not need as a result, using metal to form casing
Machining, can significantly simplify production casing 21 when manufacturing process.In addition, by using set on casing halfbody 22,23
Bearing unit clamping part 22c, 23c come clamp bearing unit 20,20 for bearer cams axis 12a and by bearing unit 20,
20 is fixed, is also readily able to camshaft 12a being installed on casing 21.
Also, by the way that guiding groove 22g is arranged in the top end part of board portion 22b in advance and on the top of board portion 23b
Portion's setting guidance raised line 23g, can make casing halfbody 22,23 reliably be combined into defined assembled state.In addition, by axis
Horn-like part 20c and rounded portions 20d is arranged in the outer surface of the bear box 20b of bearing unit 20, and on bearing unit clamping part 22c
Chamfered groove portion 22e and semicircle groove portion 22f is set and chamfered groove portion 23e and semicircle groove portion 23f is set on bearing unit clamping part 23c,
The state for being mutually clamped these components can make the axle center of two bearings unit 20,20 consistent and can prevent bear box
20b rotation and the movement of bear box 20b in the axial direction.
After assembling casing 21, the output shaft 12b of one end with the camshaft 12a motor 12 being connected is fixed on
It is arranged on the motor mount 12c of the outside of casing 21, later, the central portion of diaphragm 15,16 is respectively arranged in connection structure
Mounting portion 14e, the 14e at the both ends of part 14, by the peripheral part of diaphragm 15,16 be installed on described baseplate part 22a, 23a it is each every
Film mounting portion 21a, and cover component 25 is installed on to the outside of each diaphragm mounting portion 21a across sealing element 24, on cover component 25
Each check-valves, each access are installed.In addition, installing motor cover 12d around motor 12, and lower surface is mounted on rubber pad
The platen 11b of 11a.
It is respectively formed in the open edge for the diaphragm mounting portion 21a that the central portion of each baseplate part 22a, 23a are open
Have outwardly projecting cricoid periphery protrusion 21b and be formed in periphery protrusion 21b inner circumferential side, for installing the diaphragm 15
Periphery circumferential groove 21c.Diaphragm 15,16 is formed as self installation and goes to become towards peripheral side in the central part of the heavy wall of connecting elements 14
Thin is discoid, and the engaging to fasten with the circumferential groove 21c is respectively formed in the outer peripheral edge of thinner wall section 15a, 16a of peripheral side
Protrusion 15b, 16b.The central portion for the diaphragm 15,16 being thusly-formed is installed on the mounting portion 14e of connecting elements 14, by that will engage
Protrusion 15b, 16b are flush-mounted in described circumferential groove 21c, 21c and from outside mounting cup component 25, to will engage protrusion 15b, 16b gas
It is thickly installed on circumferential groove 21c, 21c, thus forms the pump between the outer surface of diaphragm 15,16 and the inner surface of cover component 25
Room 17,18.
Each cover component 25 includes: the flange part that the periphery protrusion 21b of casing 21 is airtightly installed on across sealing element 24
25a；Respectively with flush-mounted in circumferential groove 21c, 21c diaphragm 15,16 engaging protrusion 15b, 16b abut against and will engaging protrusion 15b,
The press section 25b that 16b is pressed into circumferential groove 21c, 21c；Pump chamber 17,18 is respectively formed between the outer surface of diaphragm 15,16
Dome shape recess portion 25c；For installing the intake channel installation base portion 25d of intake channel 17a, 18a respectively；For pacifying respectively
Fill the exhaust channel installation base portion 25e of exhaust channel 17b, 18b；For respectively by intake channel installation base portion 25d and pump
The air inlet 25f that room 17,18 is connected；And for exhaust channel installation base portion 25e to be connected with pump chamber 17,18 respectively
Gas vent 25g.
Intake channel 17a, 18a are embedded in the L of the major diameter mounting portion of intake channel installation base portion 25d by being equipped in base end part
Word pipe is formed, for limiting the air inlet side check-valves of the air from pump chamber 17,18 to intake channel 17a, 18a adverse current respectively
17c, 18c are integrally installed on the inner end center of major diameter mounting portion across sealing element respectively.By the big of intake channel 17a, 18a
Diameter mounting portion is embedded in intake channel installation base portion 25d, and intake channel 17a, 18a are airtightly installed on cover using pressing plate 26
Component 25, intake channel 17a, 18a via air inlet side check-valves 17c, 18c and air inlet 25f, 25f and respectively with pump chamber 17,18
It is connected.Exhaust channel 17b, 18b are formed by L word pipe identical with intake channel 17a, 18a, in exhaust channel 17b, 18b
Base end part is equipped with the major diameter mounting portion for being embedded in exhaust channel installation base portion 25e.For limiting air from exhaust channel
17b, 18b are integrally installed on this greatly across sealing element to described exhaust side check-valves 17d, 18d of pump chamber 17,18 adverse currents respectively
The inner end center of diameter mounting portion.The major diameter mounting portion of exhaust channel 17b, 18b are embedded in exhaust channel installation base portion 25e,
And exhaust channel 17b, 18b are airtightly installed on cover component 25 using pressing plate 26, exhaust channel 17b, 18b stop via exhaust side
It returns valve 17d, 18d and gas vent 25g, 25g and is connected respectively with pump chamber 17,18.
One pump chamber 17 is equipped with intake channel 17a and is equipped with exhaust in the side opposite with motor in the side by motor to be led to
Road 17b, another pump chamber 18 are equipped with exhaust channel 18b in the side by motor and lead in the side opposite with motor equipped with air inlet
Road 18a, in general, using connecting piece 27 appropriate by the air inlet of the exhaust channel 17b of a pump chamber 17 and another pump chamber 18
Access 18a is used in the state of linking up.
Illustrated carrying out from decompression object intake-gas and be vented using the vacuum diaphragm pump unit 11 according to Fig. 5
Operation when action state.In addition, for convenience of explanation, illustrating pump chamber in such a way that cross-sectional plan view indicates in Fig. 5
And illustrate crank mechanism in such a way that side view indicates.Using connecting piece 28 by a pump chamber 17 of vacuum diaphragm pump unit 11
Exhaust channel 17b and the intake channel 18a of another pump chamber 18 of vacuum diaphragm pump unit 11a link up, and will subtract
Pressure object makes motor 12 work in the state of being linked to the intake channel 17a an of pump chamber 17.Firstly, as shown in (A) of Fig. 5
Such diaphragm 15 is located at lower dead center and another diaphragm 16 is located at the state of top dead centre and rises, as shown in (B) of Fig. 5, when making
When eccentric cam 13a is rotated in the clockwise direction 90 degree together with camshaft 12a, driven member 13c therewith carry out it is driven and
Connecting elements 14 is mobile to 17 side of pump chamber in the horizontal direction, and a diaphragm 15 makes the smaller volume of a pump chamber 17 as a result,
And become instroke, also, another diaphragm 16 makes the volume enlargement of another pump chamber 18 and becomes suction stroke.Then,
As shown in (C) of Fig. 5, when eccentric cam 13a is rotated in the clockwise direction 180 degree, a diaphragm 15 reaches top dead centre and another
One diaphragm 16 reaches lower dead center.During until the state that the state of (A) from the Fig. 5 plays (C) of Fig. 5, i.e. one
A diaphragm 15, will be in instroke from lower dead center arrival top dead centre and during another diaphragm 16 reaches lower dead center from top dead centre
A pump chamber 17 in gas from exhaust side check-valves 17d be discharged, and pass through exhaust channel 17b, connecting piece 28, intake channel
The gas is drawn into another pump chamber 18 in suction stroke by 18a and air inlet side check-valves 18c.At this point, in a pump chamber
In 17, gas is inhibited to be discharged from pump chamber 17 to intake channel 17a using air inlet side check-valves 17c, in another pump chamber 18,
Gas is inhibited to suck into pump chamber 18 from exhaust channel 18b using exhaust side check-valves 18d.
Also, as shown in (D) of Fig. 5, when eccentric cam 13a is rotated in the clockwise direction 270 degree, 14 edge of connecting elements
Another 18 side of pump chamber of horizontal direction is mobile, another diaphragm 16 makes the smaller volume of pump chamber 18 and becomes instroke as a result,
And a diaphragm 15 makes the volume enlargement of pump chamber 17 and becomes suction stroke.Then, when eccentric cam 13a turns along clockwise direction
When 360 degree dynamic, as shown in (A) of Fig. 5, a diaphragm 15 reaches lower dead center and another diaphragm 16 reaches top dead centre.Certainly should
During until the state that the state of (C) of Fig. 5 plays (A) of Fig. 5, i.e. a diaphragm 15 from top dead centre reach lower dead center and
Another diaphragm 16 from lower dead center reach top dead centre during, by from decompression object gas from intake channel 17a via
Air inlet side check-valves 17c is drawn into a pump chamber 17 in suction stroke, will be in another pump chamber 18 in instroke
Gas is discharged from exhaust side check-valves 18d to exhaust channel 18b.At this point, utilizing exhaust side check-valves in a pump chamber 17
17d inhibits the gas to suck from exhaust channel 17b to pump chamber 17, in another pump chamber 18, using air inlet side check-valves 18c come
Gas is inhibited to be discharged from pump chamber 18 to intake channel 18a.In this way, making two and rotating camshaft 12a using motor 12
Suction stroke and instroke is alternately repeated in pump chamber 17,18, and thus, it is possible in the shape that two pump chambers 17,18 are connected in series
The bleeding of decompression object is carried out under state.
In addition, forming the resin material of casing halfbody, forming process can fit according to conditions such as intensity required by casing
Locality selection, the guide portion when combining casing halfbody each other can be arranged in position with proper shape,
The guide portion can also be omitted.In addition, preventing bear box rotation and the method for the movement of bear box in the axial direction and unlimited
In the hexagon and inscribed circle, and can be using arbitrary construction, it can also be merely with indentation, chimeric.Further, it is possible to
Two pump chambers 17,18 are used in the state that two pump chambers 17,18 are connected in parallel.
Description of symbols
11, vacuum diaphragm pump；11a, rubber pad；11b, platen；12, motor；12a, camshaft；12b, output shaft；12c,
Motor mount；12d, motor cover；13, crank mechanism；13a, eccentric cam；13b, the 1st bearing；13c, driven member；13d,
2nd bearing；13e, connecting pin；13f, large-diameter portion；13g, small diameter portion；14, connecting elements；14a, frame component；14b, board member；
14c, through hole；14d, connecting pin through hole；14e, mounting portion；15,16, diaphragm；15a, 16a, thinner wall section；15b, 16b, engaging
Protrusion；17,18, pump chamber；17a, 18a, intake channel；17b, 18b, exhaust channel；17c, 18c, air inlet side check-valves；17d,
18d, exhaust side check-valves；19, balance element；20, bearing unit；20a, bearing；20b, bear box；20c, horn-like part；20d,
Rounded portions；21, casing；21a, diaphragm mounting portion；21b, periphery protrusion；21c, circumferential groove；22,23, casing halfbody；22a, 23a, base
Plate portion；22b, 23b, board portion；22c, 23c, bearing unit clamping part；22d, 23d, top end face；22e, 23e, chamfered groove portion,
22f, 23f, semicircle groove portion；22g, guiding groove；23g, guidance raised line；22h, 23h, bolt-through portion；22i, fastening bolt；24,
Sealing element；25, cover component；25a, flange part；25b, press section；25c, dome shape recess portion；25d, intake channel boss portion；
25e, exhaust channel boss portion；25f, air inlet；25g, gas vent；26, pressing plate；27, connecting piece.
Claims (5)
1. a kind of vacuum diaphragm pump comprising: camshaft is integrally rotated with the output shaft of motor；Crank mechanism, at this
The rotation of camshaft works under driving；One connecting elements, can the crank mechanism drive under and along and the cam
The horizontal direction of the axis vertical take-off of axis moves back and forth, and is formed in the one end of the connecting elements and passes through for the camshaft
The through hole worn and the connecting elements is allowed to move in the horizontal direction；Diaphragm is respectively arranged in the both ends of the connecting elements
Portion；The volume of a pair of of pump chamber, a pair of pump chamber is expanded or shunk by the movement of the diaphragm；The air inlet being connected with each pump chamber
Access and exhaust channel；Air inlet side check-valves is used to limit fluid from the pump chamber to the intake channel adverse current；And row
Gas side check-valves is used to limit fluid from the exhaust channel to the pump chamber adverse current, by the camshaft, the crankshaft machine
Structure and the connecting elements are accommodated in the casing of rectangular-shape, and the both ends of the camshaft are distinguished by bearing unit
It is held in a pair of of opposite wall of the casing, which is characterized in that
The casing be by by a pair of of the casing halfbody formed by synthetic resin in conjunction with and formed, each casing halfbody include tool
There is the baseplate part of diaphragm mounting portion and is set respectively from the opposite both sides of the baseplate part towards another casing halfbody direction protrusion
A pair of of the board portion set is equipped with bearing unit clamping part on the top in each board portion, which is used for
By the top in two board portions each other in conjunction with when clamp the bearing unit,
The crank mechanism includes: eccentric cam, with the mode orthogonal with the camshaft be installed on the camshaft and with
The camshaft is rotated with being integrally formed；Driven member is rotatably linked to the periphery of the eccentric cam；
And the connecting elements, be linked to the driven member, the another side of the connecting elements be formed with for it is described from
The chimeric connecting pin embedded hole of the connecting pin that dynamic component is connected.
2. vacuum diaphragm pump according to claim 1, which is characterized in that
Each casing halfbody is formed by ejection compress moulding method respectively.
3. vacuum diaphragm pump according to claim 1 or 2, which is characterized in that
The synthetic resin is PC-GF.
4. vacuum diaphragm pump according to claim 1 or 2, which is characterized in that
Each casing halfbody is equipped with guide portion in each board portion respectively, which is used to combine when combining by two
Plate portion is guided to preset binding site.
5. vacuum diaphragm pump according to claim 1 or 2, which is characterized in that
The bearing unit includes the bearing of the camshaft being supported in a manner of enabling the camshaft to rotate and for protecting
The bear box for holding the periphery of the bearing is equipped in the outer surface of the bear box and the inner surface of the bearing unit clamping part
The holding section of bear box rotation and the movement of bear box in the axial direction is prevented for being mutually clamped.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014081767A JP6424012B2 (en) | 2014-04-11 | 2014-04-11 | Diaphragm vacuum pump |
| JP2014-081767 | 2014-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104976105A CN104976105A (en) | 2015-10-14 |
| CN104976105B true CN104976105B (en) | 2019-07-16 |
Family
ID=54272942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676257.9A Active CN104976105B (en) | 2014-04-11 | 2014-11-21 | Vacuum diaphragm pump |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6424012B2 (en) |
| CN (1) | CN104976105B (en) |
| HK (1) | HK1214637A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50131447U (en) * | 1974-04-16 | 1975-10-29 | ||
| JP2001329963A (en) * | 2000-05-17 | 2001-11-30 | Erc:Kk | Diaphragm type pump and deaerating device using the pump |
| JP2002359954A (en) * | 2001-05-31 | 2002-12-13 | Koyo Seiko Co Ltd | Brushless dc motor and motor-driven power steering device including the same |
| JP2004270509A (en) * | 2003-03-07 | 2004-09-30 | Matsushita Electric Ind Co Ltd | Air pump |
| JP2005194909A (en) * | 2004-01-05 | 2005-07-21 | Bridgestone Corp | Gear pump |
| CN101801749A (en) * | 2007-09-11 | 2010-08-11 | 大陆-特韦斯贸易合伙股份公司及两合公司 | The electric-motor pump group |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517640A (en) * | 1978-07-21 | 1980-02-07 | Nippon Denso Co Ltd | Diaphragm pump |
| JP2510589Y2 (en) * | 1990-07-19 | 1996-09-11 | 三菱化学株式会社 | Piezoelectric pump |
| JP3445675B2 (en) * | 1994-12-28 | 2003-09-08 | 出光石油化学株式会社 | Mold and method for forming laminated molded product |
| US7284966B2 (en) * | 2003-10-01 | 2007-10-23 | Agency For Science, Technology & Research | Micro-pump |
| JP4501517B2 (en) * | 2004-04-21 | 2010-07-14 | パナソニック電工株式会社 | Piezoelectric diaphragm pump |
| JP4571025B2 (en) * | 2005-07-01 | 2010-10-27 | 株式会社 榎本マイクロポンプ製作所 | Small diaphragm pump |
| DE102007020538A1 (en) * | 2007-01-29 | 2008-10-02 | Continental Teves Ag & Co. Ohg | Motor-pump arrangement for preparing the pressure for a brake actuating device of a vehicle braking system comprises a motor shaft and an eccentric shaft arranged in a first storage unit and a second storage unit |
| CH703813A1 (en) * | 2010-09-17 | 2012-03-30 | Medela Holding Ag | Membrane vacuum pump. |
-
2014
- 2014-04-11 JP JP2014081767A patent/JP6424012B2/en active Active
- 2014-11-21 CN CN201410676257.9A patent/CN104976105B/en active Active
-
2016
- 2016-03-01 HK HK16102353.9A patent/HK1214637A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50131447U (en) * | 1974-04-16 | 1975-10-29 | ||
| JP2001329963A (en) * | 2000-05-17 | 2001-11-30 | Erc:Kk | Diaphragm type pump and deaerating device using the pump |
| JP2002359954A (en) * | 2001-05-31 | 2002-12-13 | Koyo Seiko Co Ltd | Brushless dc motor and motor-driven power steering device including the same |
| JP2004270509A (en) * | 2003-03-07 | 2004-09-30 | Matsushita Electric Ind Co Ltd | Air pump |
| JP2005194909A (en) * | 2004-01-05 | 2005-07-21 | Bridgestone Corp | Gear pump |
| CN101801749A (en) * | 2007-09-11 | 2010-08-11 | 大陆-特韦斯贸易合伙股份公司及两合公司 | The electric-motor pump group |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6424012B2 (en) | 2018-11-14 |
| JP2015203317A (en) | 2015-11-16 |
| HK1214637A1 (en) | 2016-07-29 |
| CN104976105A (en) | 2015-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9341176B2 (en) | Diaphragm pump | |
| EP2738387B1 (en) | Diaphragm pump | |
| CN103282668B (en) | Compressor | |
| ATE449256T1 (en) | VARIABLE PUMP OR VARIABLE HYDRAULIC MOTOR | |
| JP2015045319A (en) | Flywheel device of air compressor of tire repair device | |
| CN103317327B (en) | The assembling device of automobile lamp decorative circle and housing | |
| CN104976105B (en) | Vacuum diaphragm pump | |
| JP2015044561A (en) | Cylinder seat of air compressor of tire repairer | |
| US9784264B2 (en) | Pump assembly | |
| KR100798348B1 (en) | An apparatus for assembling piston of swash plate type compressor | |
| CN108979998B (en) | Piston pump and method for positioning a piston in a piston pump | |
| CN203906445U (en) | Gear rack cylinder and clamping device comprising same | |
| CN103796803A (en) | Motorized implement having an engine mounting | |
| JP2005537425A (en) | Especially pumps for fuel injection devices of internal combustion engines | |
| CN106121975B (en) | booster pump, water purifier and water heater | |
| CN207710647U (en) | Sealing ring installs fixture | |
| CN102027226B (en) | Diesel pump | |
| JP3174674U (en) | compressor | |
| CN208977008U (en) | Positioning anti-misoperation device for cylinder body part tapping | |
| CN116900192B (en) | Sealing device for shock absorber | |
| CN218376825U (en) | Canned type reciprocating pump | |
| CN110114577A (en) | Electric gear wheel pump | |
| CN2874027Y (en) | Timing chain wheel assembling structure of engine | |
| CN212286819U (en) | Clamping device for shell parts | |
| JP6953913B2 (en) | Auxiliary support bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1214637 Country of ref document: HK |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |