CN207297610U - Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment - Google Patents

Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment Download PDF

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Publication number
CN207297610U
CN207297610U CN201720493310.0U CN201720493310U CN207297610U CN 207297610 U CN207297610 U CN 207297610U CN 201720493310 U CN201720493310 U CN 201720493310U CN 207297610 U CN207297610 U CN 207297610U
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CN
China
Prior art keywords
crank
pin
trunnion
vuilt
crankshaft
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Active
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CN201720493310.0U
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Chinese (zh)
Inventor
蔡勇
王清旭
黎明
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ZHONGQINGNENG (BEIJING) CO Ltd
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ZHONGQINGNENG (BEIJING) CO Ltd
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Classifications

    • 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
    • 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
    • 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

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  • 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

Vuilt-up crankshaft, comprising no connecting rod rotary reciprocating motion transformational structure equipment, wherein the vuilt-up crankshaft includes：Main side and secondary end, main side include the first trunnion, the first crank arm being wholely set with first trunnion, and by the first crank arm away from outwardly directed first crank-pin in first trunnion one end；First crank-pin is axially disposed through hole, is hollow structure, and the hollow structure extends to the free end of the first trunnion along the first crank pin axis, and the free end of first crank-pin is tapered end；The pair end includes the second trunnion, the second crank arm being wholely set with second trunnion, and by the second crank arm away from outwardly directed second crank-pin in second trunnion one end；The free end of second crank-pin be provided with the matched taper hole of foregoing tapered end, be additionally provided with threaded hole in the taper hole bottom；During combination, after the taper hole of second crank-pin at the tapered end of the first crank-pin of main side and secondary end is engaged, through main side and it is threaded to by bolt in the threaded hole at secondary end, main side and pair end is combined into one.

Description

Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment
This application claims submit Patent Office of the People's Republic of China, Application No. 201710236724.X, practicality new on April 12nd, 2017 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
It the utility model is related to air compressor machine technical field.More particularly to a kind of vuilt-up crankshaft.The application further relates to a kind of bag Equipment containing no connecting rod rotary reciprocating motion transformational structure.
Background technology
The air compressor machine for being used for vehicle braking of mainstream is total to shaft-driven two V-type double-cylinder pneumatics using a motor more at present Mechanism into compressor assembly.For each V-type air compressor machine, using an one-throw crankshaft, on the crank-pin of the bent axle Many 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 Put counterweight.The air compressor structure of said structure is simple, easy to maintain, but flow is smaller, and vibration is larger, it is difficult to meets car Increasingly maximization and the requirement of comfortableization.
Utility model content
The utility model provides a kind of vuilt-up crankshaft, to solve the problems, such as that above-mentioned piston type air compressor has.This reality A kind of equipment for including no connecting rod rotary reciprocating motion transformational structure is also provided with new.
A kind of vuilt-up crankshaft that the application provides, applied to no connecting rod rotary reciprocating motion switching mechanism, it includes：Main side With secondary end,
The main side includes the first trunnion, the first crank arm being wholely set with first trunnion, and by the One crank arm is away from outwardly directed first crank-pin in first trunnion one end；First crank-pin is axially disposed have it is logical Hole, is hollow structure, and the hollow structure extends to the free end of the first trunnion along the first crank pin axis, described first The free end of crank-pin is tapered end；
The pair end includes the second trunnion, the second crank arm being wholely set with second trunnion, and by the Two crank arms are away from outwardly directed second crank-pin in second trunnion one end；The free end of second crank-pin be provided with The foregoing matched taper hole of tapered end, threaded hole is additionally provided with the taper hole bottom；
During combination, after the taper hole of second crank-pin at the tapered end of the first crank-pin of main side and secondary end is engaged, by bolt Through main side and it 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 arranged at tapered end and two pairs of half bore of taper hole opposite position and two positioning pins； After combination, two pairs of half bore of opposite position align, and form 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, the vuilt-up crankshaft two crank arms opposite end, offer circular groove along crank-pin.
Optionally, bolt counter sink, the aperture of the counter sink are additionally provided with the free end side of first trunnion More than the aperture of the through hole.
In addition, the application also provides a kind of equipment for including no connecting rod rotary reciprocating motion transformational structure, wherein, the equipment Without connecting rod rotary reciprocating motion transformational structure using any of the above-described vuilt-up crankshaft.
Compared with prior art, the one aspect of the application has the following advantages：The combination of the embodiment of the present application is bent Axis, applied to no connecting rod rotary reciprocating motion switching mechanism, it includes：Main side and secondary end, the main side include the first trunnion, The first crank arm being wholely set with first trunnion, and from the first crank arm away from first trunnion one end to overhanging The first crank-pin gone out；First crank-pin is axially disposed through hole, is hollow structure, and the hollow structure is along first Crank pin axis extends to the free end of the first trunnion, and the free end of first crank-pin is tapered end；The pair end includes Second trunnion, the second crank arm being wholely set with second trunnion, and by the second crank arm away from the second main shaft Outwardly directed second crank-pin in neck one end；The free end of second crank-pin is provided with and the matched cone of foregoing tapered end Hole, threaded hole is additionally provided with the taper hole bottom；During combination, second crank at the tapered end of the first crank-pin of main side and secondary end After the taper hole of pin is engaged, through main side and it is threaded to by bolt in the threaded hole at secondary end, main side and secondary end is combined into one.Should Bent axle is combining structure not only easy to integral type smooth block or assembling and the dimension of eccentric shaft structure rotary reciprocating motion switching mechanism Shield, moreover, combined with eccentric shaft, during applied to rotary reciprocating motion switching mechanism, crank-pin is also used as synchronizing shaft, without Synchronizing shaft is separately provided again so that mechanism structure is simple；In addition, using the structure vuilt-up crankshaft without connecting rod rotary reciprocating motion Balance of plant performance is good, with small vibration.It disclosure satisfy that the vehicle maximization and the requirement of comfortableization using the air compressor machine.
Brief 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 structure diagram and sectional view put；
Fig. 3, Fig. 4 and Fig. 5 be respectively one of structure diagram of eccentric shaft of the application first embodiment, two and one of Sectional view
Fig. 6 and Fig. 7 shows the structure diagram of the vuilt-up crankshaft main side of the application first embodiment；
Fig. 8 and Fig. 9 shows the structure diagram at the vuilt-up crankshaft pair end of the application first embodiment；
Figure 10, Figure 11 and Figure 12 are respectively the structure diagram of the Double-action reciprocating moving piston of the embodiment of the present application；
Figure 13 shows the structure diagram of the piston type air compressor of the present embodiment.
Embodiment
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 from the limitation of following public specific implementation.
The piston type air compressor of the application is described in detail with reference to specific embodiment.
Please 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 show this implementation The structure diagram of the main side of example.Wherein described main side 20a includes the first trunnion 2-1 and the first trunnion 2-1 one The crank arm 2-2 of setting, outwardly directed first crank-pin in one end away from the first trunnion 2-1 by the first crank arm 2-2 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.First crank The free end (i.e. one end away from the first trunnion 2-1) for selling 2-3 is tapered end 2-5.Described 2-3 hollow knots of first crank-pin Structure, i.e., the described axially disposed through hole 2-6 of first crank-pin 2-3, the through hole 2-6 extend to along first crank-pin 2-3 The free end (as shown in Figure 7) of one trunnion 2-1.The through hole 2-6 is used for the bolt through fixed main side and secondary end.For just Fixed in bolt, bolt counter sink 2-4a (as shown in Figure 7) be additionally provided with the free end side of the first trunnion 2-1, 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 easy to fixing bolt.
Fig. 8 and Fig. 9 are refer 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 away 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 away 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. The taper hole 3-5 and the mating part of tapered end can also set location structure, for example, in tapered end 2-5 and the corresponding positions of 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 formed Whole location hole, positioning pin are placed in the location hole, complete the positioning after main side and secondary end assembling.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 engaged with foregoing fixing bolt, for Behind main side and secondary end assembling, the two is mutually fixed.
During combination, the cone of the second crank-pin 3-3 of the tapered end 2-5 insertion pairs end 20b of the first crank-pin 2-3 of main side 20a In the 3-5 of hole, the two is engaged, and the setting of foregoing taper hole and tapered end ensures that the first crank-pin 2-3 and the second crank-pin 3-3 is complete There is common axis after into cooperation.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, if necessary, can also set and above-mentioned coaxial setting is completed by location structure.Will be fixed Bolt (fixing bolt 80 in such as Fig. 2) passes through through hole 2-6 by counter sink 2-4a sides, screws in threaded hole 3-7, and screw.
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 such as set on the first crank arm of figure 2-2, the counterweight 3-4 set on the second crank arm 3-2.
In the present embodiment, in the opposite end of two crank arms of vuilt-up crankshaft, circular groove is offered along crank-pin, is such as schemed Support circular groove 2-2a is opened up on the crank arm 2-2 of 6 main side 20a, is opened on the crank arm 3-2 of secondary end 20b as shown in Figure 9 If support circular groove 3-2a.
Illustrate that combinations of the above bent axle is applied to the structure of air compressor below, in the present embodiment, with 8 cylinder diesis types Illustrated exemplified by the piston type air compressor of structure (or being double X-type structure).Figure 13 shows the piston of the present embodiment The structure diagram of formula air compressor, in the present embodiment, mainly in combination with its arrangement form to the piston type compressed of the present embodiment Machine illustrates, and does not do excessive description for the body of compressor, driving device and attached accessory, related part refers 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 and unilateral four cylinders are in cross arrangement, and centre sets driving device, and dress is driven in the present embodiment It is set to driving motor 100.Whole machine is arranged on base 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 set.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 structure diagram and sectional view of turn changing device.
Please refer 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 Close bent axle and be connected 20.Vuilt-up crankshaft 20 can use structure described in above-described embodiment, repeat no more again.In addition, group Other combinations can also be had by closing bent axle, such as crank-pin is integral, it is combining structure with any of which crank arm, Crank arm and crank-pin are fixed with one by bolt.Or crank-pin and both ends crank arm are detachable structure, herein No longer repeat one by one.
The mechanism and aforementioned components of the off-axis line 30 and two-way ram 10 are directly connected with each other separately below Relation is described.
Please refer to Fig.3, Fig. 4 and Fig. 5, its be respectively one of structure diagram of eccentric shaft of the embodiment of the present application, two And one of sectional view.The eccentric shaft of the present embodiment includes hollow shaft part 4-1 and is arranged on the hollow shaft part two inclined 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), quill shaft Not less than 20 crank-pin of vuilt-up crankshaft, (foregoing first crank-pin and the second crank-pin form complete section 4-1 along the axial length 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 set in 180 degree.The two axisymmetrical is arranged at 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 combining structure.For combining structure when, two Eccentric orfice is set on eccentric cylinder 4-2a and 4-2b, and hollow shaft part 4-1 is admittedly through the eccentric orfice and with eccentric cylinder One.
Lightened structure, such as respective opposite end surface side can also be set on two the eccentric cylinders 4-2a and 4-2b Lightening grooves 4-6 can also be set.
In addition, rolling bearing can also be socketed in eccentric cylinder periphery, and in an instantiation, the eccentric cylinder External week forms 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.Such as It is upper described, 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 20a of Fig. 6 Crank arm 2-2 on open up support circular groove 2-2a, open up support circular groove on the crank arm 3-2 of secondary end 20b as shown in Figure 9 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 arranged at hollow shaft part 4-1 both ends The rolling bearing 4-7 in outside is supported in support the circular groove 2-2a and 3-2a (as shown in Figures 4 and 5).The axis of rolling Holding 4-7 set-up modes can be identical with eccentric cylinder outer bearing set-up mode, i.e., is set only on the outside of hollow shaft part and roll member Part and bearing outer ring.The rolling bearing set on eccentric shaft can meet between eccentric shaft and vuilt-up crankshaft, and with following work Relative motion between plug is without oil lubrication.Filling lubricating grease can ensure long-time relative motion within the bearing, so that So that the air compressor machine of this structure can be referred to as oilless air compressor in a sense.Due to without lubricating oil, therefore safeguard and maintenance Cost substantially reduces, and effective duration of runs increases.
It is rotatably connected in addition, eccentric shaft there can also be other manner to realize 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 not necessarily using above-mentioned between eccentric shaft and vuilt-up crankshaft Rolling bearing, it can also 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, structure of the built-up crank pin through the hollow shaft part of eccentric shaft so that crank-pin has synchronizing shaft Effect, without being separately provided synchronizing shaft again.Make full use of design space so that the pneumatics equipment of the embodiment of the present application device There is the volume of smaller.
0, Figure 11 and Figure 12 is please referred to Fig.1, it 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 Part I 5-2a and Part II 5-5b, two parts are fixed as one by being arranged at the connection structure of outer ledge, are such as schemed Connecting hole 5-5 in 12.Eccentric cylinder accommodating hole 5-3 is set 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 assembling, 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 set outside two eccentric cylinders In 90 degree of arrangements.
The first rotary reciprocating motion conversion equipment and the second rotary reciprocating motion conversion equipment after assembling are arranged on 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 somebody with somebody is as shown in figure 13.
In a specific example, the cylinder positioned at the rotary reciprocating motion conversion equipment of 10 both sides of driving device is opposite Should arrange, (both sides are away from driving device) two reciprocating piston vibration-direction is identical on the outside of the complete machine, positioned at by The vibration-direction of two reciprocating pistons of nearly driving device is identical, and the identical two-piston of the direction of motion reach at the same time it is same The top dead centre in one direction.That is, the identical reciprocating piston of vibration-direction is synchronized with the movement.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, relative to the piston type air compressor of 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, piston type air compressor can also be 4 cylinder cross-shaped configurations, i.e., using a rotary reciprocating motion converting means Put.Rotary reciprocating motion conversion equipment can use the structure of above-described embodiment one, the present embodiment piston type air compressor Other side can be same as the previously described embodiments, here not reinflated discussion.
The application also provides a kind of equipment for including no connecting rod rotary reciprocating motion transformational structure, wherein, the nothing of the equipment Connecting rod rotary reciprocating motion transformational structure is using any of the above-described vuilt-up crankshaft.The equipment can be vehicle air compressor, use In providing power for locomotive or automobile brake.
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 scope that the utility model claims are defined.

Claims (7)

  1. A kind of 1. vuilt-up crankshaft, applied to no connecting rod rotary reciprocating motion switching mechanism, it is characterised in that including：Main side and pair End,
    The main side includes the first trunnion, the first crank arm being wholely set with first trunnion, and bent by first Shaft arm is away from outwardly directed first crank-pin in first trunnion one end；First crank-pin is axially disposed through hole, is Hollow structure, and the hollow structure extends to the free end of the first trunnion, first crank along the first crank pin axis The free end of pin is tapered end；
    The pair end includes the second trunnion, the second crank arm being wholely set with second trunnion, and bent by second Shaft arm is away from outwardly directed second crank-pin in second trunnion one end；The free end of second crank-pin be provided with it is foregoing The matched taper hole of tapered end, threaded hole is additionally provided with the taper hole bottom；
    During combination, after the taper hole of second crank-pin at the tapered end of the first crank-pin of main side and secondary end is engaged, 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.
  2. 2. vuilt-up crankshaft according to claim 1, it is characterised in that be additionally provided with the tapered end and taper hole mating part Location structure.
  3. 3. vuilt-up crankshaft according to claim 2, it is characterised in that the location structure is to be arranged at tapered end and taper hole phase Two pairs of half bore of correspondence position and two positioning pins；After combination, two pairs of half bore of opposite position align, and form complete positioning Hole, positioning pin are placed in the location hole.
  4. 4. vuilt-up crankshaft according to claim 1, it is characterised in that also set up on two crank arms of the vuilt-up crankshaft There is counterweight.
  5. 5. vuilt-up crankshaft according to any one of claims 1 to 4, it is characterised in that in two crank arms of the vuilt-up crankshaft Opposite end, offer circular groove along crank-pin.
  6. 6. vuilt-up crankshaft according to claim 1, it is characterised in that also set up in the free end side of first trunnion There is bolt counter sink, the aperture of the counter sink is more than the aperture of the through hole.
  7. 7. a kind of equipment for including no connecting rod rotary reciprocating motion transformational structure, it is characterised in that the equipment is rotated without connecting rod Transformational structure is moved back and forth using any vuilt-up crankshaft of the claims 1 to 6.
CN201720493310.0U 2017-04-12 2017-05-05 Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment Active CN207297610U (en)

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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
CN201720493714.XU Withdrawn - After Issue CN207620993U (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201710312751.0A Active CN107143485B (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201720493773.7U Withdrawn - After Issue CN207761902U (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201720492843.7U Active CN207316001U (en) 2017-04-12 2017-05-05 Rotary reciprocating motion conversion equipment and the equipment using the device
CN201720493310.0U Active CN207297610U (en) 2017-04-12 2017-05-05 Vuilt-up crankshaft, include no connecting rod rotary reciprocating motion transformational structure equipment
CN201710312859.XA Pending CN106979218A (en) 2017-04-12 2017-05-05 A kind of eccentric shaft
CN201710312205.7A Active CN107143484B (en) 2017-04-12 2017-05-05 Piston air compressor and automobile-used air compressor

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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
CN201720493714.XU Withdrawn - After Issue CN207620993U (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201710312751.0A Active CN107143485B (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201720493773.7U Withdrawn - After Issue CN207761902U (en) 2017-04-12 2017-05-05 A kind of piston type air compressor and vehicle air compressor
CN201720492843.7U Active CN207316001U (en) 2017-04-12 2017-05-05 Rotary reciprocating motion conversion equipment and the equipment using the device

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CN201710312859.XA Pending CN106979218A (en) 2017-04-12 2017-05-05 A kind of eccentric shaft
CN201710312205.7A Active CN107143484B (en) 2017-04-12 2017-05-05 Piston air compressor and automobile-used air compressor

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Publication number Publication date
CN106979218A (en) 2017-07-25
CN207316001U (en) 2018-05-04
CN107143484B (en) 2020-01-24
CN207620993U (en) 2018-07-17
CN207761902U (en) 2018-08-24
CN107143485A (en) 2017-09-08
CN207278692U (en) 2018-04-27
CN107143485B (en) 2019-10-18
CN107143484A (en) 2017-09-08
CN106949214A (en) 2017-07-14

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