CN207620993U - A kind of piston type air compressor and vehicle air compressor - Google Patents
A kind of piston type air compressor and vehicle air compressor Download PDFInfo
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- CN207620993U CN207620993U CN201720493714.XU CN201720493714U CN207620993U CN 207620993 U CN207620993 U CN 207620993U CN 201720493714 U CN201720493714 U CN 201720493714U CN 207620993 U CN207620993 U CN 207620993U
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- crank
- air compressor
- piston
- pin
- eccentric
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/10—Crankshafts assembled of several parts, e.g. by welding by crimping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/18—Eccentric-shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A kind of piston type air compressor and vehicle air compressor comprising, body, the first rotary reciprocating motion conversion equipment, the second rotary reciprocating motion conversion equipment and the driving device being set in the body；Each rotary reciprocating motion conversion equipment includes vuilt-up crankshaft, eccentric shaft and two Double-action reciprocating moving pistons；The vuilt-up crankshaft includes crank-pin that is positioned at both ends and being coaxially disposed trunnion, be set to two crank arms of two trunnion opposite ends and be set between two crank arm；The eccentric shaft includes hollow shaft part and the phase being set on the hollow shaft part is in two eccentric cylinders of 180 degree；The hollow shaft part of the eccentric shaft is rotatably socketed on the crank-pin of the vuilt-up crankshaft, the piston seat of each two-way ram is rotatably socketed on an eccentric cylinder of the eccentric shaft, and the two-way ram vibration-direction being arranged outside two eccentric cylinders is in 90 degree of arrangements.
Description
This application claims being submitted on April 12nd, 2017, Patent Office of the People's Republic of China, application No. is 201710236724.X, practicality are new
The Chinese patent application of type entitled " piston type air compressor, movement transforming device, vuilt-up crankshaft, eccentric shaft and vehicle air compressor "
Priority, entire contents are hereby incorporated by reference in the application.
Technical field
The utility model is related to air compressor machine technical fields.More particularly to a kind of piston type air compressor.The application further relates to one
Kind vehicle air compressor.
Background technology
The air compressor machine for vehicle braking of mainstream mostly uses a motor and is total to shaft-driven two V-type double-cylinder pneumatics at present
Mechanism at compressor assembly.For each V-type air compressor machine, it is all made of an one-throw crankshaft, on the crank-pin of the bent axle
More than two is in the piston of an angle of 90 degrees, and the connection structure of piston and crank-pin is brace and connecting rod framework, the non-cloth on machine
Set counterweight.The air compressor structure of above structure is simple, easy to maintain, but flow is smaller, and vibration is larger, it is difficult to meet vehicle
The increasingly requirement of enlargement and comfortableization.
Utility model content
The utility model provides a kind of piston type air compressor, is asked with solve that above-mentioned piston type air compressor has
Topic.The utility model also provides a kind of rotary reciprocating motion conversion equipment, vuilt-up crankshaft, eccentric shaft and a kind of vehicle air compressor.
A kind of piston type air compressor provided by the present application, including, body, the first rotation being set in the body
Reciprocating movement converting device, the second rotary reciprocating motion conversion equipment and driving device；
Wherein, each rotary reciprocating motion conversion equipment includes vuilt-up crankshaft, eccentric shaft and two Double-action reciprocatings
Moving piston；
The vuilt-up crankshaft includes two songs that are positioned at both ends and being coaxially disposed trunnion, be set to two trunnion opposite ends
Shaft arm and the crank-pin being set between two crank arm, the crank-pin are at least detachable with wherein one end crank arm
Structure, the two are connected as one by connector；
The eccentric shaft includes hollow shaft part and two eccentric cylinders that are set on the hollow shaft part, described hollow
Shaft part passes through two eccentric cylinder, two eccentric cylinder phases to be arranged in 180 degree, and the two axisymmetrical is set to hollow shaft
Section axis both sides；
The Double-action reciprocating moving piston includes the piston seat of the piston and connection two-piston positioned at both sides, described
Eccentric cylinder accommodating hole is provided on piston seat；
When assembly, the hollow shaft part of the eccentric shaft is rotatably socketed on the crank-pin of the vuilt-up crankshaft,
The piston seat of each two-way ram is rotatably socketed on an eccentric cylinder of the eccentric shaft, two eccentric cylinders
The two-way ram vibration-direction being arranged in vitro is in 90 degree of arrangements,
The first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment after assembly are set to
On the body, and the bent axle of the two rotary reciprocating motions conversion equipment is connected with the driving device drive shaft.
Optionally, the first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment are symmetrical arranged
In on the body；And the described driving device drive shaft of the bent axle of the two rotary reciprocating motions conversion equipment is coaxial connected
It connects.
Optionally, it connects between the piston and eccentric cylinder and is all made of oil-free between hollow shaft part and bent axle
Bearing.
Optionally, the vuilt-up crankshaft includes
Main side and secondary end, the main side include the first crank that the first trunnion and first trunnion are wholely set
Arm, and by the first crank arm far from outwardly directed first crank-pin in first trunnion one end；During first crank-pin is
Hollow structure, and the hollow structure extends to the free end of the first trunnion, first crank-pin along the first crank pin axis
Free end be tapered end；
The second crank arm that the pair end includes the second trunnion, is wholely set with second trunnion, and by the
Two crank arms are far from outwardly directed second crank-pin in second trunnion one end；The free end of second crank-pin be provided with
The aforementioned matched taper hole of tapered end is additionally provided with threaded hole in the taper hole bottom；
When combination, after the taper hole of second crank-pin at the tapered end of the first crank-pin of main side and secondary end matches, by bolt
It across main side and is threaded in the threaded hole at secondary end, main side and secondary end is combined into one.
Optionally, it is additionally provided with location structure in the tapered end and taper hole mating part.
Optionally, the location structure is to be set to tapered end and the two pairs of half bore and two positioning pins of taper hole opposite position；
After combination, two pairs of half bore of opposite position align, and constitute complete location hole, and positioning pin is placed in the location hole.
Optionally, it is additionally provided with counterweight on two crank arms of the vuilt-up crankshaft.
Optionally, in the opposite end of two crank arms of the vuilt-up crankshaft, circular groove is offered along crank-pin, it is described
The both ends of hollow eccentric axis are by bearing support in the circular groove side wall.
Optionally, the piston is directly connected by rolling bearing with the eccentric cylinder of eccentric shaft.
Optionally, the eccentric cylinder is integrally formed with the hollow shaft part, or
The eccentric cylinder and the hollow shaft part are the split structure being fixed with one.
Optionally, the eccentric cylinder periphery is socketed with rolling bearing, and the eccentric cylinder periphery constitutes the axis of rolling
Hold inner ring.
Optionally, the two reciprocating piston vibration-directions for being located remotely from driving device are identical, are located at close to driving
The vibration-direction of two reciprocating pistons of device is identical.
Optionally, the arrangement of the first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment is full
The identical reciprocating piston of sufficient vibration-direction moves synchronously.
In addition, the application also provides a kind of vehicle air compressor, wherein the air compressor machine is using aforementioned any piston type
Air compressor.
Compared with prior art, it is had the following advantages in terms of one of the application：The application is relative to existing two
The piston type air compressor of a 2V structures, in the case where not increasing body volume so that discharge capacity doubles.In addition, this
Apply for that constitutional balance performance is good, it is with small vibration.It disclosure satisfy that the requirement of the vehicle enlargement and comfortableization using the air compressor machine.
Description of the drawings
Fig. 1 and Fig. 2 is respectively the rotary reciprocating motion converting means of the piston type air compressor of the application first embodiment
The structural schematic diagram and sectional view set；
Fig. 3, Fig. 4 and Fig. 5 be respectively one of structural schematic diagram of eccentric shaft of the application first embodiment, two and one of
Sectional view
Fig. 6 and Fig. 7 shows the structural schematic diagram of the vuilt-up crankshaft main side of the application first embodiment；
Fig. 8 and Fig. 9 shows the structural schematic diagram at the vuilt-up crankshaft pair end of the application first embodiment；
Figure 10, Figure 11 and Figure 12 are respectively the structural schematic diagram of the Double-action reciprocating moving piston of the embodiment of the present application；
Figure 13 shows the structural schematic diagram of the piston type air compressor of the present embodiment.
Specific implementation mode
Many details are elaborated in the following description in order to fully understand the utility model.But this practicality is new
Type can be much to implement different from other manner described here, and those skilled in the art can be new without prejudice to this practicality
Similar popularization is done in the case of type intension, therefore the utility model is not limited by following public specific implementation.
In following embodiments of the application, a kind of piston type air compressor is provided.The piston type pneumatic pressure of the application
Contracting machine includes body, driving device, the first rotary reciprocating motion conversion equipment, the second rotary reciprocating motion conversion equipment.Wherein,
The body is mutually fitted with the driving device and the first rotary reciprocating motion conversion equipment, the second rotary reciprocating motion conversion equipment
Match, the structure of existing piston type air compressor body can be used.Driving device can be motor or internal combustion engine or other
Power plant.Its output power is determined according to the discharge capacity and rotating speed of piston type air compressor.The work of embodiments herein
Plug air compressor further includes the identical two rotary reciprocating motions conversion equipment of structure, each device include vuilt-up crankshaft,
Eccentric shaft and Double-action reciprocating moving piston；
The vuilt-up crankshaft includes two songs that are positioned at both ends and being coaxially disposed trunnion, be set to two trunnion opposite ends
Shaft arm and the crank-pin being set between two crank arm, the crank-pin are at least detachable with wherein one end crank arm
Structure, the two are connected as one by connector；
The eccentric shaft includes hollow shaft part and two eccentric cylinders that are set on the hollow shaft part, described hollow
Shaft part passes through two eccentric cylinder, two eccentric cylinder phases to be arranged in 180 degree, and the two axisymmetrical is set to hollow shaft
Section axis both sides；
The Double-action reciprocating moving piston includes the piston seat of the piston and connection two-piston positioned at both sides, described
Eccentric cylinder accommodating hole is provided on piston seat；
When assembly, the hollow shaft part of the eccentric shaft is rotatably socketed on the crank-pin of the vuilt-up crankshaft,
The piston seat of two-way ram is rotatably socketed on an eccentric cylinder of the eccentric shaft, and two eccentric cylinders are external
The two-way ram vibration-direction of setting is in 90 degree of arrangements；
The first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment after assembly are set to
On the body, and the bent axle of the two rotary reciprocating motions conversion equipment is connected with the driving device drive shaft.
Two rotary reciprocating motions conversion equipment movement is driven by driving device drive shaft, realizes rotary motion to past
The conversion moved again, the piston of reciprocating motion moves in the cylinder compresses gas.
The piston type air compressor of the application is described in detail with reference to specific embodiment.
The present embodiment is the piston type air compressor of 8 cylinder diesis type structures (or being double X-type structure).Figure 13 is shown
The structural schematic diagram of the piston type air compressor of the present embodiment, in the present embodiment, mainly in combination with its arrangement form to this reality
The piston compressor for applying example illustrates, and excessive description is not done for the body of compressor, driving device and attached accessory, related
Place can refer to existing piston compressor.
3 are please referred to Fig.1, the 8 cylinder diesis type structures of the present embodiment include eight compression cylinders 200, and be placed in compressor
Both sides, the cylinder of side four.Unilateral four cylinders are in cross arrangement, and centre is arranged driving device, dress is driven in the present embodiment
It is set to driving motor 100.Entire machine is set on pedestal 300.
The piston type air compressor of the present embodiment further includes two rotary reciprocating motions in addition to including body, driving device
Conversion equipment is referred to as the first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment.The present embodiment
In, two rotary reciprocating motion conversion device structures can be identical, is symmetrically disposed on body opposite side, passes through the driving of driving device
Axis is connected.Certain both sides rotary reciprocating motion switching mechanism asymmetric can also be arranged.Below to the reciprocal fortune of wherein one rotation
Turn changing device is described.Fig. 1 and Fig. 2 is respectively that the rotation of the piston type air compressor of the embodiment of the present application is back and forth transported
The structural schematic diagram and sectional view of turn changing device.
It please refers to Fig.1 and Fig. 2, the rotary reciprocating motion conversion equipment in the present embodiment includes vuilt-up crankshaft 20, eccentric shaft
30 and two two-way rams 10.Two two-way ram vibration-directions pass through eccentric shaft 30 and group in 90 degree of arrangements
It closes bent axle and is connected 20.Mechanism to the vuilt-up crankshaft 20, off-axis line 30 and two-way ram 10 and aforementioned separately below
The direct interconnected relationship of component is described.
Please further refer to Fig. 2, the vuilt-up crankshaft of the present embodiment includes main side 20a and pair end 20b.Fig. 6 and Fig. 7 are shown
The structural schematic diagram of the main side of the present embodiment.The wherein described main side 20a includes the first trunnion 2-1 and first trunnion
Crank arm 2-2 that 2-1 is wholely set, one end outwardly directed first far from the first trunnion 2-1 by the first crank arm 2-2
Crank-pin 2-3, the first crank-pin 2-3 and the first trunnion 2-1 non co axials, and the two axial line distance is e.Described
The free end (i.e. one end far from the first trunnion 2-1) of one crank-pin 2-3 is tapered end 2-5.In first crank-pin 2-3
Hollow structure, i.e., the described axially disposed through-hole 2-6 of first crank-pin 2-3, the through-hole 2-6 extend along first crank-pin 2-3
To the free end (as shown in Figure 7) of the first trunnion 2-1.The through-hole 2-6 is used for the bolt across fixed main side and secondary end.
It is fixed for ease of bolt, bolt counter sink 2-4a (institutes in such as Fig. 7 is additionally provided in the free end side of the first trunnion 2-1
Show), the aperture of the counter sink 2-4a is more than the aperture of the through-hole 2-6, for housing bolt countersunk head and being convenient for fixing bolt.
Fig. 8 and Fig. 9 are please referred to, the pair end includes the second trunnion 3-1, is wholely set with the second trunnion 3-1
The second crank arm 3-2 and by outwardly directed second crank in the one end of the second crank arm 3-2 far from the second trunnion 3-1
Sell 3-3.The second crank-pin 3-3 and the second trunnion 3-1 non co axials, and the two axial line distance is e.Described second is bent
The free end (i.e. one end far from the second trunnion 3-1) of handle pin 3-3 is provided with the matched taper hole 3-5 of the tapered end 2-5.
Location structure can also be arranged in the taper hole 3-5 and the mating part of tapered end.For example, in tapered end 2-5 and the corresponding positions taper hole 3-5
Two pairs of half bore are installed, it is matched by two positioning pins；After combination, two pairs of half bore of opposite position align, and have constituted
Whole location hole, positioning pin are placed in the location hole, complete the positioning after main side and secondary end assembly.In addition, in the taper hole 3-5
Bottom be additionally provided with threaded hole 3-7 (as shown in Figure 9), the threaded hole 3-7 is matched with aforementioned fixing bolt, for
Behind main side and secondary end assembly, the two is mutually fixed.
When combination, the tapered end 2-5 of the first crank-pin 2-3 of main side 20a is inserted into the cone of the second crank-pin 3-3 of pair end 20b
In the 3-5 of hole, the two matches, and the setting of aforementioned taper hole and tapered end ensures that the first crank-pin 2-3 and the second crank-pin 3-3 is complete
At after cooperation have common axis.In addition, adjustment main side 20a and the positions of pair end 20b circumferentially so that the first trunnion
2-1 and the second trunnion 3-1 are coaxial, when necessary, can also be arranged and complete above-mentioned coaxial setting by location structure.It will fix
Bolt (fixing bolt 80 in such as Fig. 2) passes through through-hole 2-6 by the sides counter sink 2-4a, screws in threaded hole 3-7, and screw.
In addition, the first trunnion 2-1 and the first crank arm 2-2, the second trunnion 3-1 and the second crank arm 3-2 it
Between may not be integral structure, but split structure is connected to one by connection structure or connector.
In addition, to ensure compressor whole machine balancing, balanced arrangement can also be set on the crank arm of aforementioned combinatorial bent axle,
The counterweight 2-4 being arranged on such as the first crank arm of figure 2-2, the counterweight 3-4 being arranged on the second crank arm 3-2.
In addition, vuilt-up crankshaft can also have other combinations, such as crank-pin is integral, with any of which song
Shaft arm is composite structure, and crank arm and crank-pin are fixed with one by bolt.Or crank-pin is with both ends crank arm
Detachable structure, this is no longer going to repeat them.
Please refer to Fig.3, Fig. 4 and Fig. 5, be respectively one of structural schematic diagram of eccentric shaft of the embodiment of the present application, two
And one of sectional view.The eccentric shaft of the present embodiment include hollow shaft part 4-1 and be set on the hollow shaft part two partially
The heart cylinder 4-2a and 4-2b.The hollow shaft part 4-1 is axially disposed hollow via-hole 4-1a (referring to Fig. 5), hollow shaft
Section 4-1 is not less than 20 crank-pin of the vuilt-up crankshaft along the axial length, and (aforementioned first crank-pin and the second crank-pin are constituted completely
Crank-pin) axial length.The radial dimension of hollow via-hole 4-1a is more than the radial ruler of 20 crank-pin of aforementioned combinatorial bent axle
It is very little.The two eccentric cylinders radial direction and axial dimension all same, and phase is arranged in 180 degree.The two axisymmetrical is set to
The central axis both sides of hollow shaft part 4-1, and the distance away from hollow shaft part 4-1 central axis is e.Two eccentric cylinder
Body 4-2a and 4-2b can be integrally formed with the hollow shaft part 4-1, or composite structure.When for composite structure, two
Eccentric orfice is set on eccentric cylinder 4-2a and 4-2b, and hollow shaft part 4-1 passes through the eccentric orfice and with eccentric cylinder is admittedly
One.
Lightened structure, such as respective opposite end surface side can also be set on two the eccentric cylinders 4-2a and 4-2b
Weight loss groove 4-6 can also be set.
In addition, it can also be socketed rolling bearing in eccentric cylinder periphery, and in a specific example, the eccentric cylinder
External week constitutes the bearing inner race of rolling bearing, and needle roller or ball are directly contacted with eccentric cylinder periphery, bearing outer ring 4-5 sets
It is connected on outside needle roller or ball.Concrete structure is as shown in Figure 5.
The hollow shaft part 4-1 of the eccentric shaft 30 is rotatably socketed on the crank-pin of the vuilt-up crankshaft 20.This
In embodiment, in the opposite end of two crank arms of vuilt-up crankshaft 20, circular groove is offered along crank-pin, such as the main side of Fig. 6
Support circular groove 2-2a is opened up on the crank arm 2-2 of 20a, and branch is opened up on the crank arm 3-2 of secondary end 20b as shown in Figure 9 and is held round
Slot 3-2a.Crank arm passes through the hollow via-hole 4-1a of the hollow shaft part 4-1 of eccentric shaft 30, by being set to hollow shaft part 4-1 two
The rolling bearing 4-7 (as shown in Figures 4 and 5) in end outside is supported in support the circular groove 2-2a and 3-2a.The rolling
Bearing 4-7 set-up modes can be identical as eccentric cylinder outer bearing set-up mode, i.e., is arranged only on the outside of hollow shaft part and rolls
Element and bearing outer ring.The rolling bearing being arranged on eccentric shaft can meet between eccentric shaft and vuilt-up crankshaft, and with it is following
Relative motion between piston is not necessarily to oil lubrication.Filling lubricating grease can guarantee long-time relative motion within the bearing, from
And make the air compressor machine of this structure that can be referred to as oilless air compressor in a sense.Due to being not necessarily to lubricating oil, therefore safeguards and tie up
Accomplish and originally substantially reduce, effective duration of runs increases.
In addition, eccentric shaft can also have other manner realization to be rotatably connected with vuilt-up crankshaft, for example, in eccentric shaft
Rolling bearing is set between hollow bearing and the crank-pin of vuilt-up crankshaft.Not reinflated discussion herein.
Furthermore, it is necessary to explanation, being rotatably connected between eccentric shaft and vuilt-up crankshaft not necessarily uses above-mentioned
Rolling bearing may be the die sleeve that subtracts of sliding bearing or other means, or and vuilt-up crankshaft relative motion combination
Anti-attrition layer is set on face.The die sleeve that subtracts of sliding bearing or other means can also be set on the outside of eccentric cylinder, or with work
Anti-attrition layer etc., herein not reinflated discussion are set on the relative motion face of plug.
In the present embodiment, built-up crank pin passes through the structure of the hollow shaft part of eccentric shaft so that crank-pin has synchronizing shaft
Effect, without synchronizing shaft is separately provided again.Make full use of design space so that the pneumatics equipment of the embodiment of the present application device
There is smaller volume.
0, Figure 11 and Figure 12 is please referred to Fig.1, is respectively the structure of the Double-action reciprocating moving piston of the embodiment of the present application
Schematic diagram, in the present embodiment, Double-action reciprocating moving piston includes piston head 5a and 5b, and piston seat is split structure, including
First part 5-2a and second part 5-5b, two parts are fixed as one by being set to the connection structure of outer ledge, are such as schemed
Connecting hole 5-5 in 12.Setting eccentric cylinder accommodating hole 5-3 among piston seat.Piston seat microcephaly part is provided with pin hole 5-
4, piston seat is connected with piston head with piston pin by pin hole 5-4.
In the present embodiment, each rotary reciprocating motion conversion equipment includes two Double-action reciprocating moving pistons.With
After vuilt-up crankshaft and eccentric shaft assembly, each Double-action reciprocating moving piston corresponds to an eccentric cylinder, and eccentric cylinder can revolve
Transposition is in the accommodating hole of Double-action reciprocating moving piston.The two-way ram vibration-direction being arranged outside two eccentric cylinders
It is arranged in 90 degree.
The first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment after assembly are set to
On the body, and the bent axle of the two rotary reciprocating motions conversion equipment is connected with the driving device drive shaft, dress
Structure after matching is as shown in figure 13.
In a specific example, the cylinder for being located at the rotary reciprocating motion conversion equipment of 10 both sides of driving device is opposite
It should arrange, it is identical to be located at (both sides are far from driving device) two reciprocating piston vibration-direction on the outside of complete machine, positioned at leaning on
The vibration-direction of two reciprocating pistons of nearly driving device is identical, and the identical two-piston of the direction of motion reaches together simultaneously
The top dead centre in one direction.That is, the identical reciprocating piston of vibration-direction moves synchronously.This kind of arrangement can be further
Reduce the torque of complete machine so that the balance quality of the machine greatly improves.
The constitutional balance performance of the air compressor arrangement of the embodiment of the present application greatly enhances so that complete machine has excellent
Different balance quality.Two above-mentioned rotary reciprocating motion transformational structures are identical, can be symmetrically disposed on body both sides, be driven by motor
Moving axis is connected, for example, coaxial can connect.
Further, the piston type air compressor relative to existing two 2V structures, the piston type pneumatic of this structure
Compressor is not in the case where increasing body volume, also so that discharge capacity doubles.
In addition, the application also provides a kind of rotary reciprocating motion conversion equipment, above-described embodiment one may be used in structure
Rotary reciprocating motion conversion equipment described in kind.Not reinflated discussion herein.
In addition, the application also provides a kind of vuilt-up crankshaft, a kind of combination of above-described embodiment may be used in structure
Bent axle.Not reinflated discussion herein.
In addition, the application also provides a kind of eccentric shaft, a kind of eccentric shaft of above-described embodiment may be used in structure.
Not reinflated discussion herein.
The application also provides a kind of vehicle air compressor, and power is provided for locomotive or automobile brake, which uses
Piston type air compressor described in any of the above-described embodiment.
Although the utility model is disclosed as above with preferred embodiment, its be not for limiting the utility model, it is any
Those skilled in the art without departing from the spirit and scope of the utility model, can make possible variation and modification, because
This scope of protection of the utility model should be subject to the range that the utility model claims are defined.
Claims (14)
1. a kind of piston type air compressor, it is characterised in that including, body, the first rotary reciprocating motion being set in the body
Conversion equipment, the second rotary reciprocating motion conversion equipment and driving device；
Wherein, each rotary reciprocating motion conversion equipment includes vuilt-up crankshaft, eccentric shaft and two Double-action reciprocating movements
Piston；
The vuilt-up crankshaft includes two crank arms that are positioned at both ends and being coaxially disposed trunnion, be set to two trunnion opposite ends
And it is set to the crank-pin between two crank arm, the crank-pin is at least detachable knot with wherein one end crank arm
Structure, the two are connected as one by connector；
The eccentric shaft includes hollow shaft part and two eccentric cylinders that are set on the hollow shaft part, the hollow shaft part
Across two eccentric cylinder, two eccentric cylinder phases are arranged in 180 degree, and the two axisymmetrical is set to hollow shaft part axis
Line both sides；
The Double-action reciprocating moving piston includes the piston seat of the piston and connection two-piston positioned at both sides, in the piston
It is provided with eccentric cylinder accommodating hole on seat；
When assembly, the hollow shaft part of the eccentric shaft is rotatably socketed on the crank-pin of the vuilt-up crankshaft, each
The piston seat of two-way ram is rotatably socketed on an eccentric cylinder of the eccentric shaft, and two eccentric cylinders are external
The two-way ram vibration-direction of setting is in 90 degree of arrangements,
The first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment after assembly are set to described
On body, and the bent axle of the two rotary reciprocating motions conversion equipment is connected with the driving device drive shaft.
2. piston type air compressor according to claim 1, which is characterized in that the first rotary reciprocating motion conversion equipment
It is symmetrically disposed on the body with the second rotary reciprocating motion conversion equipment；And the two rotary reciprocating motions conversion equipment
The described driving device drive shaft of bent axle is coaxial to be connected.
3. piston type air compressor according to claim 1, which is characterized in that connect the piston and eccentric cylinder it
Between and hollow shaft part and bent axle between be all made of oilless bearing.
4. piston type air compressor according to claim 1, which is characterized in that the vuilt-up crankshaft includes：
Main side and secondary end, the main side include the first crank arm that the first trunnion and first trunnion are wholely set, with
And by the first crank arm far from outwardly directed first crank-pin in first trunnion one end；First crank-pin is hollow knot
Structure, and the hollow structure extends to the free end of the first trunnion along the first crank pin axis, first crank-pin from
By holding as tapered end；
The pair end includes the second crank arm that the second trunnion and second trunnion are wholely set, and by the second song
Shaft arm is far from outwardly directed second crank-pin in second trunnion one end；The free end of second crank-pin be provided with it is aforementioned
The matched taper hole of tapered end is additionally provided with threaded hole in the taper hole bottom
When combination, after the taper hole of second crank-pin at the tapered end of the first crank-pin of main side and secondary end matches, passed through by bolt
Main side is simultaneously threaded in the threaded hole at secondary end, and main side and secondary end are combined into one.
5. piston type air compressor according to claim 4, which is characterized in that also set in the tapered end and taper hole mating part
It is equipped with location structure.
6. piston type air compressor according to claim 5, which is characterized in that the location structure is to be set to tapered end and cone
Two pairs of half bore of hole opposite position and two positioning pins；After combination, two pairs of half bore of opposite position align, and it is complete fixed to constitute
Position hole, positioning pin are placed in the location hole.
7. piston type air compressor according to claim 1, which is characterized in that on two crank arms of the vuilt-up crankshaft also
It is provided with counterweight.
8. piston type air compressor according to any one of claims 1 to 7, which is characterized in that two in the vuilt-up crankshaft are bent
The opposite end of shaft arm offers circular groove along crank-pin, and the both ends of the hollow eccentric axis are by bearing support in described
Circular groove side wall.
9. piston type air compressor according to any one of claims 1 to 7, which is characterized in that the piston and eccentric shaft it is inclined
Heart cylinder is connected by rolling bearing.
10. piston type air compressor according to claim 1, which is characterized in that the eccentric cylinder and the hollow shaft
Section is integrally formed, or
The eccentric cylinder and the hollow shaft part are the split structure being fixed with one.
11. piston type air compressor according to claim 1, which is characterized in that the eccentric cylinder periphery is socketed with rolling
Dynamic bearing, the eccentric cylinder periphery constitute rolling bearing inner ring.
12. piston type air compressor according to claim 1, which is characterized in that be located remotely from two reciprocal fortune of driving device
Piston vibration-direction is identical, and the vibration-direction for being located at two reciprocating pistons close to driving device is identical.
13. piston type air compressor according to claim 12, which is characterized in that the first rotary reciprocating motion converting means
It sets and meets the identical reciprocating piston of vibration-direction with the arrangement of the second rotary reciprocating motion conversion equipment and move synchronously.
14. a kind of vehicle air compressor, which is characterized in that the air compressor machine is empty using any piston type of claim 1 to 13
Press.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236724 | 2017-04-12 | ||
| CN201710236724X | 2017-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207620993U true CN207620993U (en) | 2018-07-17 |
Family
ID=59341001
Family Applications (9)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720493714.XU Withdrawn - After Issue CN207620993U (en) | 2017-04-12 | 2017-05-05 | A kind of piston type air compressor and vehicle air compressor |
| CN201720493310.0U Active CN207297610U (en) | 2017-04-12 | 2017-05-05 | Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment |
| CN201710312833.5A Pending CN106949214A (en) | 2017-04-12 | 2017-05-05 | Rotary reciprocating motion conversion equipment and the equipment using the device |
| CN201720493316.8U Active CN207278692U (en) | 2017-04-12 | 2017-05-05 | Eccentric shaft, include no connecting rod rotary reciprocating motion transformational structure equipment |
| CN201720493773.7U Withdrawn - After Issue CN207761902U (en) | 2017-04-12 | 2017-05-05 | A kind of piston type air compressor and vehicle air compressor |
| CN201710312205.7A Active CN107143484B (en) | 2017-04-12 | 2017-05-05 | Piston air compressor and automobile-used air compressor |
| CN201710312751.0A Active CN107143485B (en) | 2017-04-12 | 2017-05-05 | A kind of piston type air compressor and vehicle air compressor |
| CN201710312859.XA Pending CN106979218A (en) | 2017-04-12 | 2017-05-05 | A kind of eccentric shaft |
| CN201720492843.7U Active CN207316001U (en) | 2017-04-12 | 2017-05-05 | Rotary reciprocating motion conversion equipment and the equipment using the device |
Family Applications After (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720493310.0U Active CN207297610U (en) | 2017-04-12 | 2017-05-05 | Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment |
| CN201710312833.5A Pending CN106949214A (en) | 2017-04-12 | 2017-05-05 | Rotary reciprocating motion conversion equipment and the equipment using the device |
| CN201720493316.8U Active CN207278692U (en) | 2017-04-12 | 2017-05-05 | Eccentric shaft, include no connecting rod rotary reciprocating motion transformational structure equipment |
| CN201720493773.7U Withdrawn - After Issue CN207761902U (en) | 2017-04-12 | 2017-05-05 | A kind of piston type air compressor and vehicle air compressor |
| CN201710312205.7A Active CN107143484B (en) | 2017-04-12 | 2017-05-05 | Piston air compressor and automobile-used air compressor |
| CN201710312751.0A Active CN107143485B (en) | 2017-04-12 | 2017-05-05 | A kind of piston type air compressor and vehicle air compressor |
| CN201710312859.XA Pending CN106979218A (en) | 2017-04-12 | 2017-05-05 | A kind of eccentric shaft |
| CN201720492843.7U Active CN207316001U (en) | 2017-04-12 | 2017-05-05 | Rotary reciprocating motion conversion equipment and the equipment using the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (9) | CN207620993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107143484A (en) * | 2017-04-12 | 2017-09-08 | 中清能（北京）科技有限公司 | A kind of piston type air compressor and vehicle air compressor |
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| JP6281853B1 (en) * | 2017-10-03 | 2018-02-21 | 有限会社ケイ・アールアンドデイ | Rotary cylinder device |
| CN108523778A (en) * | 2018-06-13 | 2018-09-14 | 山西嘉世达机器人技术有限公司 | Clean robot |
| CN108433633A (en) * | 2018-06-13 | 2018-08-24 | 山西嘉世达机器人技术有限公司 | Dustbin and clean robot with it |
| DE102018125866B3 (en) * | 2018-10-18 | 2019-06-27 | Schaeffler Technologies AG & Co. KG | unbalanced shaft |
| CN109537346B (en) * | 2019-01-08 | 2024-06-18 | 山东力脉智能科技股份有限公司 | Eccentric swinging shaft, manufacturing method thereof and dustpan sieve |
| CN110056494A (en) * | 2019-05-20 | 2019-07-26 | 浙江万安其弗汽车零部件有限公司 | A kind of automobile-used oil-free air compressor |
| CN110295995B (en) * | 2019-07-17 | 2022-02-11 | 李洋涛 | Structure capable of realizing full balance and multi-cylinder combined piston engine |
| CN110863968B (en) * | 2019-12-12 | 2024-05-03 | 浙江洛森压缩机股份有限公司 | Double-pump-head air compressor |
| CN113565730A (en) * | 2021-08-26 | 2021-10-29 | 瑞立集团瑞安汽车零部件有限公司 | Novel reciprocating positive displacement air compressor |
| US11536353B1 (en) * | 2021-12-02 | 2022-12-27 | Sencera Energy, Inc. | Apparatus and method for converting between linear and rotary motion and systems involving the same |
| CN114623064A (en) * | 2022-03-09 | 2022-06-14 | 王汝君 | Parallel multi-cylinder star-like piston compressor |
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- 2017-05-05 CN CN201720493714.XU patent/CN207620993U/en not_active Withdrawn - After Issue
- 2017-05-05 CN CN201720493310.0U patent/CN207297610U/en active Active
- 2017-05-05 CN CN201710312833.5A patent/CN106949214A/en active Pending
- 2017-05-05 CN CN201720493316.8U patent/CN207278692U/en active Active
- 2017-05-05 CN CN201720493773.7U patent/CN207761902U/en not_active Withdrawn - After Issue
- 2017-05-05 CN CN201710312205.7A patent/CN107143484B/en active Active
- 2017-05-05 CN CN201710312751.0A patent/CN107143485B/en active Active
- 2017-05-05 CN CN201710312859.XA patent/CN106979218A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143484A (en) * | 2017-04-12 | 2017-09-08 | 中清能（北京）科技有限公司 | A kind of piston type air compressor and vehicle air compressor |
| CN107143484B (en) * | 2017-04-12 | 2020-01-24 | 中清能（北京）科技有限公司 | Piston air compressor and automobile-used air compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106979218A (en) | 2017-07-25 |
| CN107143485A (en) | 2017-09-08 |
| CN107143484A (en) | 2017-09-08 |
| CN207761902U (en) | 2018-08-24 |
| CN107143484B (en) | 2020-01-24 |
| CN207278692U (en) | 2018-04-27 |
| CN106949214A (en) | 2017-07-14 |
| CN107143485B (en) | 2019-10-18 |
| CN207297610U (en) | 2018-05-01 |
| CN207316001U (en) | 2018-05-04 |
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