CN107061243A

CN107061243A - Vavuum pump

Info

Publication number: CN107061243A
Application number: CN201710506840.9A
Authority: CN
Inventors: 李百峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-28
Filing date: 2017-06-28
Publication date: 2017-08-18

Abstract

The present embodiments relate to a kind of vavuum pump, including cylinder body, leather cup, force piece and transmission mechanism, the transmission mechanism includes slide track component and roll wheel assembly, the slide track component is the cylinder provided with the spacing track slot of wavy extension in the circumferential on the face of cylinder, the roll wheel assembly is including fixed plate and is placed in the roller that can be moved in the spacing track slot of the slide track component and relative to the position-limited rail trough roller, one in both fixed plates of the slide track component and roll wheel assembly be fixedly connected with the output shaft of force piece and both in another be fixedly connected with the bottom wall of leather cup.The spacing track slot that the embodiment of the present invention passes through the circumferential wavy extension of setting on the face of cylinder of slide track component, and the roller moved relative to position-limited rail trough roller is set in spacing track slot, so as to when force piece is rotated, smoothly relative motion occurs between slide track component and roller, and then reach the purpose of compression and stretching leather cup, reduce vibration, reduce noise, and increase the service life.

Description

Vavuum pump

Technical field

The present embodiments relate to pump technical field, more particularly to a kind of vavuum pump.

Background technology

Vavuum pump is that one kind is compressed or stretched to being taken out container using methods such as machinery, physics, chemistry, from an envelope A kind of device that space excludes, adds gas or liquid is closed, is divided into mechanical and electrodynamic type etc..A kind of existing mechanical vacuum Pump, its diaphragm for being used to produce pressure difference is fixed together by screw with a slide bar, and slide bar is connected together by pin with connecting rod, even Bar is connected together by pin with toggle-action lever, and crank worm and wheel is fixed together, worm gear and worm screw composition worm mechanism, discharge pipe It is connected with dump valve and vacuum pump outlet pipe, suction line is connected with inlet valve and vacuum pump inlet pipe.The vavuum pump of this structure, The gyration of pump shaft is converted into the linear motion of slide bar, the straight line up and down of slide bar by worm mechanism and slider-crank mechanism Motion drives motion of membrane, changes diaphragm with the spatial volume size of diaphragm pump upper casing composition so that the arrival end of vavuum pump Vacuum is formed, the purpose of pump self-priming is reached, but use worm slide block mechanism waves type of drive and is excluded and added gas Body or liquid, vacuum pump vibration are big, high noise, and influence service life.

The content of the invention

Technical problem to be solved of the embodiment of the present invention is to vibrate small, noise there is provided one kind low and service life is long Vavuum pump.

In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme first：A kind of vavuum pump, including cylinder Body, the leather cup being placed in cylinder body, located at cylinder body one end be used to driving the force piece of leather cup and be arranged at force piece and leather cup it Between transmission mechanism, the transmission mechanism includes slide track component and roll wheel assembly, and the slide track component is is provided with the face of cylinder The cylinder of the spacing track slot of wavy extension in the circumferential, the roll wheel assembly includes fixed plate and is installed on the fixed plate Go up and be placed in the roller that can be moved in the spacing track slot of the slide track component and relative to the position-limited rail trough roller, the position-limited rail The groove width of groove and the diameter of roller match, one in both fixed plates of the slide track component and roll wheel assembly and force piece Output shaft be fixedly connected and both in another be fixedly connected with the bottom wall of leather cup.

Further, the cylinder is formed by two short cylindricals with end face docking, and on the face of cylinder of two short cylindricals By being respectively equipped with undaform depressed part at butt end, after described two short cylindricals docking, the ripple on two short cylindricals respectively Wave type depressed part cooperatively forms complete spacing track slot.

Further, twisted after described two short cylindrical docking by means of bolt and be solidly connected integral, described two short cylindricals Butt end end face on be respectively arranged with the locating dowel and positioning hole of mutual cooperation grafting.

Further, the plate face that fixed plate is respectively perpendicular at the relative two edges of the fixed plate extends that to form two symmetrical The mounting ear of distribution, the roller is installed on mounting ear by means of bearing pin.

Further, the fixed plate of the roll wheel assembly is fixed in the middle part of leather cup bottom wall, and clamping plate is provided with the leather cup, The clamping plate and fixed plate are attached at medial surface and lateral surface in the middle part of leather cup bottom wall respectively, and the clamping plate and skin are passed through by screw Bowl bottom wall is locked in the fixed plate and clamps leather cup bottom wall by clamping plate and fixed plate again.

Further, projection is formed with the side away from leather cup for the position that screw is locked in the fixed plate, it is fixed The screw that a side surface of the plate provided with self-bonding leather cup extends into the projection, screw correspondence is screwed together in the screw, The cylinder is formed with the position corresponding to projection by one end end face of fixed plate and keeps away a hole.

Further, the axial direction guide rod parallel with the activity direction of leather cup, the slide rail group are fixed with the cylinder body One be fixedly connected in both fixed plates of part and roll wheel assembly with leather cup provided with guide hole and is sheathed on institute by the guide hole State on guide rod.

Further, the cylinder body includes one end by leather cup is covered and cylinder that the other end is covered by the first end cap, is set It is placed on the outside of leather cup and is matched for clamping tightly the valve plate on the bowl edge of leather cup and be covered on the outside of valve plate the with the corresponding end-faces of cylinder Import nozzle and outlet nozzle are arranged on two end caps, second end cap, the valve plate is provided with inlet valve and outlet valve.

Further, the side of first end cap, cylinder, leather cup, valve plate and the second end cap is provided with parallel to cylinder The neck of body axial direction, after first end cap, cylinder, leather cup, valve plate and the correspondence assembling of the second end cap, first end cap, cylinder Neck on body, leather cup, valve plate and the second end cap is just right successively respectively, separately has U-shaped grab to be correspondingly embedded in the neck and two Deduct respectively on the end face of the first end cap and the second end cap at end.

Further, set fluted on the face being in contact in the spacing track slot with roller foreign steamer side face, the groove Interior placement lubricating grease.

After adopting the above technical scheme, the embodiment of the present invention at least has the advantages that：The embodiment of the present invention passes through The spacing track slot of circumferential wavy extension is set on the face of cylinder of slide track component, and set in spacing track slot relative to spacing The roller that track slot is rolled, so that when force piece is rotated, smoothly relative motion, Jin Erda occur between slide track component and roller To the purpose for compressing and stretching leather cup, reduce vibration, reduce noise, and increase the service life.

Brief description of the drawings

Fig. 1 is the exploded perspective view of the embodiment of the present invention.

Fig. 2 is the cross-sectional view of the embodiment of the present invention.

Fig. 3 is the big motivation structure assembling structure schematic diagram of the embodiment of the present invention.

Embodiment

The application is described in further detail with specific embodiment below in conjunction with the accompanying drawings.It should be appreciated that following signal Property embodiment and illustrate only to be used for explaining the application, be not intended as the restriction to the application, moreover, in the case where not conflicting, The feature in embodiment and embodiment in the application can be combined with each other.

As shown in Figure 1-Figure 3, the embodiment of the present invention provides a kind of vavuum pump, including cylinder body 1, the leather cup that is placed in cylinder body 1 2nd, it is used for the transmission mechanism for driving the force piece 3 of leather cup 2 and being arranged between force piece 3 and leather cup 2 located at the one end of cylinder body 1, The transmission mechanism includes slide track component 4 and roll wheel assembly 5, and the slide track component 4 is provided with ripple in the circumferential on the face of cylinder The cylinder of the spacing track slot 41 of wave-like extension, the roll wheel assembly 5 includes fixed plate 51 and is installed in the fixed plate 51 And it is placed in the roller 52 that can be rolled in the spacing track slot 41 of the slide track component and relative to the spacing track slot 41, the limit The groove width and the diameter of roller 52 of position track slot 41 match, in both fixed plates 51 of the slide track component 4 and roll wheel assembly One be fixedly connected with the output shaft 31 of force piece and both in another be fixedly connected with the bottom wall of leather cup 2.

By setting the spacing track slot 41 of circumferential wavy extension on the face of cylinder of slide track component 4, and in spacing track slot The rollers 52 rolled relative to spacing track slot 41 are set in 41 so that when force piece 3 is rotated, slide track component 4 and roller 52 it Between occur smoothly relative motion, and then reach the purpose of compression and stretching leather cup 2, reduce vibration, reduce noise, and extend and make Use the life-span.

In an alternative embodiment of the invention, the cylinder of the slide track component 4 is docked by two short cylindricals 42 with end face Form, and on the face of cylinder of two short cylindricals by being respectively equipped with undaform depressed part 43, described two short cylindricals pair at butt end After connecing, the undaform depressed part on two short cylindricals cooperatively forms complete spacing track slot 41 respectively.

In an alternative embodiment of the invention, described two short cylindricals 42 twist to be connected after docking by means of bolt 45 is connected into one The locating dowel 421 and positioning hole of mutual cooperation grafting are respectively arranged with body, the end face of the butt end of described two short cylindricals 43 422.Two short cylindricals 42 are twisted by means of bolt 44 after docking and are solidly connected integrally, so as to form spacing track slot on the face of cylinder 41；By setting the locating dowel 421 being engaged and positioning hole 422 assembling can be made more smooth, locating dowel 421 and positioning hole 422 It can arbitrarily be arranged in the both ends of the surface that two short cylindricals 42 are abutted against, constitute several by locating dowel 421 and the structure of positioning hole 422 Into positioning group.

In an alternative embodiment of the invention, fixed plate 51 is respectively perpendicular at the relative two edges of the fixed plate 51 Plate face extends to form two symmetrical mounting ears 511, and the roller 52 is installed on mounting ear 511 by means of bearing pin 53.It is logical Cross bearing pin 53 and be fixedly connected with fixed plate 51 and roller 52, roller 52 is relative in spacing track slot 41 to be rolled, fixed plate 51 and roller It is fixed between 52.

Fixed plate 51 and the connected mode of roller 52 also have many kinds, for example, integrally extending bearing pin on mounting ear 511 53, roller 52 is arranged on mounting ear 511, or integrally extend on roller 52 bearing pin 53, by 511 sets of mounting ear If on roller 52.Bearing pin 53 can be made of metal material or have the materials such as the plastic material of some strength, described Roller 52 can use ball bearing.

In an alternative embodiment of the invention, the fixed plate 51 of the roll wheel assembly is fixed in the middle part of the bottom wall of leather cup 2, described Clamping plate 21 is provided with leather cup 2, the clamping plate 21 and fixed plate 51 are attached at medial surface and outside in the middle part of the bottom wall of leather cup 2 respectively Face, is locked in the fixed plate 51 and by clamping plate 21 and fixed plate 51 again by screw 22 through the clamping plate 21 and the bottom wall of leather cup 2 Clamp the bottom wall of leather cup 2.In an alternate embodiment of the present invention where, the fixed plate 51 be set to it is round, with the bottom shape of leather cup 2 Shape is matched.The clamping plate 21 and the fixed plate 51 are fastenedly connected the bottom for clamping leather cup 2 by screw 22, can be at the bottom of leather cup 2 The promotion of portion's uniform force and stretching leather cup 2；In another alternative embodiment of the invention, clamping plate 21 can not be also set, by fixation Plate 51 and the bottom of leather cup 2 bonding can also be realized and be fastenedly connected.

The position that screw 22 is locked is supplied in an alternative embodiment of the invention, in the fixed plate 51 away from the one of leather cup Side is formed with projection 512, the screw that a side surface of the fixed plate 51 provided with self-bonding leather cup 2 extends into the projection 512 513, the correspondence of screw 22 is screwed together in the screw 513, and the cylinder 42 leans on one end end face of fixed plate 51 corresponding to convex It is formed with the position of post 512 and keeps away a hole 423.Set projection 512 there are more spaces that screw 513 is set, make screw 22 Locking is more firm, and keeping away a hole 423 is used to avoid projection 512, it is to avoid is collided with cylinder 42 and projection 512 and brings noise.

In an alternative embodiment of the invention, axial direction is fixed with the cylinder body 1 parallel with the activity direction of leather cup 2 One be fixedly connected in both guide rod 6, fixed plate 51 of the slide track component 4 and roll wheel assembly with leather cup 2 is provided with guide hole simultaneously It is sheathed on by the guide hole on the guide rod 6, by setting guide rod 6, it is ensured that the fixed plate 51 of slide track component 4 and roll wheel assembly A component being fixedly connected in both with leather cup 2 can carry out straight line back and forth movement along guide rod, and then effectively drive leather cup 2 to carry out Linear motion is come and gone, moreover, guide rod 6 can be with solid with leather cup 2 in the fixed plate 51 of effective guarantee slide track component 4 and roll wheel assembly Surely one provided with guide hole connected will not follow the output shaft 31 of force piece to rotate.In the optional implementation of the present invention In example, the fixed plate 51 of roll wheel assembly is fixedly connected with leather cup 2, and sets guide hole to be arranged guide rod 6 in fixed plate 51, in power During the rotation of the output shaft 31 of part, fixed plate 51 is done by the roller 52 being mounted thereon by the thrust of spacing track slot along guide rod Come and go straight line elevating movement and then drive leather cup synchronous movement, and guide rod 6 has also ensured that fixed plate 51 will not be because of force piece The rotation of output shaft 31 and rotate.

In an alternative embodiment of the invention, the cylinder body 1 include one end by leather cup 2 cover and the other end by first end Cylinder 12 that lid 11 is covered, the valve plate on the bowl edge for being arranged at the outside of leather cup 2 and leather cup 2 being matched for clamping tightly with the corresponding end-faces of cylinder 12 13 and second end cap 14 in the outside of valve plate 13 is covered in, import nozzle 141 and outlet nozzle are arranged on second end cap 14 142, the valve plate 13 is provided with inlet valve 131 and outlet valve 132, and the inlet valve and outlet valve are some small on valve plate 13 Hole 131 is constituted with glue fourth 132, the glue head of glue fourth 132 in leather cup 2 for inlet valve, the glue head of glue fourth 132 is outside leather cup 2 For outlet valve, gas or liquid are flowed into by inlet valve, outlet valve outflow.

In an alternative embodiment of the invention, first end cap 11, cylinder 12, leather cup 2, the end cap 14 of valve plate 13 and second Side be provided with neck 7 parallel to the axial direction of cylinder 12, first end cap 11, cylinder 12, leather cup 2, valve plate 13 and the After the correspondence assembling of two end caps 14, first end cap 11, cylinder 12, leather cup 2,7 points of neck on the end cap 14 of valve plate 13 and second It is just not right successively, separately have that U-shaped grab 8 is correspondingly embedded in the neck 7 and two ends are deducted in the first end cap 11 and the second end respectively On the end face of lid 12.First end cap 11, cylinder 12, leather cup 2, valve plate 13 are fixedly connected with the second end cap 14 by U-shaped grab 8 Into an entirety.

In an alternative embodiment of the invention, tapped through hole, the force piece 3 and are additionally provided with first end cap 11 One end cap 11 is fastenedly connected by Screw 9；Through hole 111 is additionally provided with first end cap 11, the output shaft of a force piece is kept away 31。

In an alternative embodiment of the invention, the roller 52 uses bearing, and bearing has inner ring and outer ring, inner ring and fixation Plate 51 is fixed, and outer ring can also be in spacing track slot 41 slidably, when the output shaft 31 of force piece is rotated, slide track component 4 It more can smoothly be done relative motion with roll wheel assembly 5 and the part being connected with leather cup 2 is not rotated.

In an alternative embodiment of the invention, the face that the spacing track slot 41 is in contact with the foreign steamer side face of roller 52 is provided with Groove 45, the storing lubricating grease in groove 45 plays lubrication, and avoids roller 52 from moving in spacing track slot 41 lubricating when turning Fat is extruded, and the lubrication time is longer, makes the smoothly relative motion in the spacing track slot 41 of slide track component of roller 52, and then The purpose of compression and stretching leather cup 2 is reached, this compact conformation is stable, and vibration is small, and noise is low, and service life is long.

The operation principle of the embodiment of the present invention is：Force piece 3, which is powered, to be rotated, and drives slide track component 4 to rotate, due to guide rod 6 Limitation prevents fixed plate 51 from rotating, and fixed plate 51 can only do round linear motion in the activity direction of leather cup 2, be placed in position-limited rail Such as bearing of roller 52 in groove 41, motion is rotated due to being fixed with fixed plate 51 without the rotation with slide track component 4, Round linear motion can only be done in the activity direction of leather cup 2, so as to drive fixed plate 51 to do round linear slide, the band of fixed plate 51 Dynamic leather cup 2, which is done, comes and goes the remote or close valve plate 13 that moves along a straight line, and then makes the activity of leather cup 2 so that leather cup 2 and valve plate 13 are formed Chamber change, and inside and outside differential pressure is formed, so as to realize the function of suction and discharge.When fixed plate 51 drives leather cup 2 do round linear motion away from valve plate 13, when leather cup 2 arrives certain predeterminated position away from valve plate 13, are formed by leather cup 2 and valve plate 13 Chamber room pressure or hydraulic pressure are less than preset pressure value, by the glue fourth 132 of exterior thereto air pressure or hydraulic open inlet valve, close out The glue fourth 132 of mouth valve, gas or liquid enter chamber from some apertures 131 on valve plate, when fixed plate 51 drives leather cup 2 to do past Linear motion is returned close to valve plate 13, leather cup 2 close to valve plate 13 arrive certain predeterminated position when, by chamber room pressure or hydraulic pressure higher than default Pressure value, by the glue fourth 132 of chamber interior air pressure or hydraulic open outlet valve, closes the glue fourth 132 of inlet valve, gas or liquid Chamber is discharged from some apertures 131 on valve plate, gas or liquid suction is realized or discharges.

Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention limits by appended claims and its equivalency range.

Claims

1. a kind of vavuum pump, including cylinder body, be placed in cylinder body leather cup, located at cylinder body one end be used to driving the force piece of leather cup with And it is arranged at the transmission mechanism between force piece and leather cup, it is characterised in that the transmission mechanism includes slide track component and roller Component, the slide track component is the cylinder provided with the spacing track slot of wavy extension in the circumferential on the face of cylinder, the rolling Wheel assembly includes fixed plate and is installed in the fixed plate and is placed in the spacing track slot of the slide track component and can be relative The roller moved in the position-limited rail trough roller, the groove width of the spacing track slot and the diameter of roller match, the slide track component and One in both fixed plates of roll wheel assembly is fixedly connected and another and leather cup in both with the output shaft of force piece Bottom wall is fixedly connected.

2. vavuum pump as claimed in claim 1, it is characterised in that the cylinder is by two short cylindricals with end face docking Into, and on the face of cylinder of two short cylindricals by being respectively equipped with undaform depressed part at butt end, after described two short cylindrical docking, The undaform depressed part being located at respectively on two short cylindricals cooperatively forms complete spacing track slot.

3. vavuum pump as claimed in claim 2, it is characterised in that twisted and be connected by means of bolt after described two short cylindrical docking It is connected into locating dowel and the positioning that mutual cooperation grafting is respectively arranged with one, the end face of the butt end of described two short cylindricals Hole.

4. vavuum pump as claimed in claim 1, it is characterised in that be respectively perpendicular at the relative two edges of the fixed plate solid The plate face of fixed board extends to form two symmetrical mounting ears, and the roller is installed on mounting ear by means of bearing pin.

5. vavuum pump as claimed in claim 4, it is characterised in that the fixed plate of the roll wheel assembly is fixed in leather cup bottom wall Clamping plate is provided with portion, the leather cup, the clamping plate and fixed plate are attached at medial surface and outside in the middle part of leather cup bottom wall respectively Face, is locked in the fixed plate and clamps leather cup bottom by clamping plate and fixed plate again by screw through the clamping plate and leather cup bottom wall Wall.

6. vavuum pump as claimed in claim 5, it is characterised in that the position that screw is locked is supplied in the fixed plate away from skin The side of bowl is formed with projection, the screw that a side surface of the fixed plate provided with self-bonding leather cup extends into the projection, spiral shell Nail correspondence is screwed together in the screw, and the cylinder is formed with by one end end face of fixed plate at the position corresponding to projection Keep away a hole.

7. vavuum pump as claimed in claim 1, it is characterised in that the activity direction of axial direction and leather cup is fixed with the cylinder body One be fixedly connected in both parallel guide rod, fixed plate of the slide track component and roll wheel assembly with leather cup is provided with guide hole And be sheathed on by the guide hole on the guide rod.

8. vavuum pump as claimed in claim 1, it is characterised in that the cylinder body is covered and the other end including one end by leather cup The cylinder that is covered by the first end cap, the valve plate on the bowl edge for being arranged on the outside of leather cup and leather cup being matched for clamping tightly with the corresponding end-faces of cylinder And be covered on the second end cap on the outside of valve plate, second end cap and be arranged on import nozzle and outlet nozzle, set on the valve plate There are inlet valve and outlet valve.

9. vavuum pump as claimed in claim 8, it is characterised in that first end cap, cylinder, leather cup, valve plate and the second end The side of lid is provided with the neck parallel to cylinder axial direction, first end cap, cylinder, leather cup, valve plate and the second end cap pair After should assembling, the neck on first end cap, cylinder, leather cup, valve plate and the second end cap is just right successively respectively, separately there is U-shaped card Hook is correspondingly embedded in the neck and two ends are deducted on the end face of the first end cap and the second end cap respectively.

10. vavuum pump as claimed in claim 1, it is characterised in that be in contact in the spacing track slot with roller foreign steamer side face Face on set fluted, lubricating grease is placed in the groove.