CN205533077U - Multistage gas compressor's crank mechanism - Google Patents
Multistage gas compressor's crank mechanism Download PDFInfo
- Publication number
- CN205533077U CN205533077U CN201620033937.3U CN201620033937U CN205533077U CN 205533077 U CN205533077 U CN 205533077U CN 201620033937 U CN201620033937 U CN 201620033937U CN 205533077 U CN205533077 U CN 205533077U
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- CN
- China
- Prior art keywords
- bent axle
- crank
- crank mechanism
- connecting rod
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a multistage gas compressor's crank mechanism, sets up in multistage gas compressor's crankcase, including bent axle and drive mechanism, drive mechanism includes link mechanism, link mechanism's one end and crankshaft drive hookup, and link mechanism's the other end couples with the piston drive in the compression cylinder, its characterized in that, one side of bent axle is equipped with a crank throw, link mechanism transmission hookup is on this crank throw, one side of the relative crank throw of bent axle still is equipped with a balancing piece, the balancing piece is decentered install on the bent axle and eccentricity direction with the eccentricity direction of crank throw is opposite, and the off -centre the when balancing piece is used for balanced bent axle to rotate is done all can. The utility model provides an among the multistage gas compressor crank mechanism wearing and tearing more serious, problem that life is short.
Description
Technical field
This utility model relates to a kind of crank mechanism, particularly relates to a kind of multi-level gas compression
The crank mechanism of machine.
Background technology
Gas compressor is by a kind of power set that changes mechanical energy is gas pressure energy,
The offer aerodynamic force of pneumatic tools is provided, is also commonly used for force feed oxygen, natural gas etc.
Gas.Current gas compressor mainly carries out gas compression by cylinder, in order to ensure
Higher gas pressure, gas compressor usually uses multi-stage compression to reach the mesh of supercharging
's.Multi-stage compression need multiple piston cylinders gas is compressed, the piston of piston cylinder by
The bent axle being arranged in gas compressor crankcase is driven, and during Crankshaft motion, can be subject to
To bigger eccentric force.Along with the pressure of gas is more and more higher, the air pressure that piston receives is anti-
Active force is stronger, and this counteracting force can produce shadow to the job stability of bent axle
Ring, cause bent axle vibration, the linkage generation transposition on bent axle, make crank mechanism transport
Time dynamic, inter deterioration is accelerated, and causes crank mechanism short for service life.Such as number of patent application
It is the patent of the entitled compound compressor of 201410245774.0, which discloses one
Planting compound compressor, this compound compressor is driven multiple multistage eccentric part to complete by bent axle
The multi-stage compression of gas, when gas pressure is excessive, the kinetic stability of bent axle is poor, bent
The abrasion of axis mechanism is relatively big, and the service life of whole drive mechanism is short.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of multistage gas compressors
Crank mechanism, can effectively solve gas pressure higher time, crank mechanism running is stable
Property is poor, the problem that bent axle service life is short.
This utility model solves the problems referred to above by the following technical programs: a kind of multi-level gas pressure
The crank mechanism of contracting machine, is arranged in the crankcase of multistage gas compressors, including bent axle
And drive mechanism, described drive mechanism includes linkage, and one end of linkage is with bent
Through-drive couples, and the other end of linkage couples with the piston drive in compression cylinder, its
Being characterised by, the side of described bent axle is provided with a crank throw, and described linkage transmission joins
Being connected on this crank throw, the side of described crankshaft relative crank throw is additionally provided with a balance weight, described
What balance weight was eccentric be arranged on bent axle and the eccentric direction phase of eccentric direction and described crank throw
Instead, balance weight eccentric force when balance crankshaft rotates.
As preferably, on described bent axle gap be provided with three spring bearings, respectively first
Spring bearing, the second spring bearing and the 3rd spring bearing, described crank throw is positioned at first
Between spring bearing and the second spring bearing, described balance weight is positioned at the second spring bearing
With the 3rd between spring bearing.
As preferably, described balance weight is eccentric, and described eccentric is fixed on song by flat key
On axle, the angle staggered between eccentric and crank throw is 180 degree；At eccentric away from song
The side turned is provided with hexagonal axle sleeve and a round sleeve, described hexagonal axle sleeve and round sleeve
Series connection is socketed on bent axle.
As preferably, the linkage on described crank throw includes multiple connecting rod, between described connecting rod
Being arranged on bent axle of gap, the number of connecting rod is identical with the number of cylinders in gas compressor
And their one_to_one corresponding is arranged.
As preferably, described connecting rod includes that axostylus axostyle, described axostylus axostyle two ends are equipped with a coupling ring,
One coupling ring couples with the piston drive of gas compressor, another coupling ring and bent axle
Driving coupling；The thickness of described axostylus axostyle and two coupling rings is identical, at the both wings one of axostylus axostyle
Body formed have gusset piece, described gusset piece and two coupling rings to couple, and the side of gusset piece
While be inside cambered design.
As preferably, the crankcase bottom at gas compressor is additionally provided with an oil cylinder, at connecting rod machine
Be additionally provided with one on one of them connecting rod of structure and be stained with beam hanger, described be stained with beam hanger be thin rod shape and
One-body molded at connecting rod away from the side of axostylus axostyle.
As preferably, described oil cylinder opening surface is horn-like setting, and described beam hanger of being stained with stretches into
The part of oil cylinder is all the time in the depth bounds of oil cylinder.
As preferably, described beam hanger of being stained with is arranged on the connecting rod promoting the piston directly over oil cylinder.
As preferably, one end of described bent axle is connected with the power output shaft of motor, the other end
Being additionally provided with a blower fan, described blower fan is used for air-cooled gas compressor.
This utility model to produce when balance crankshaft rotates by increasing balance weight on bent axle
Eccentric force, be effectively prevented from during Crankshaft motion occurring vibration and transposition, make whole
The kinetic stability of crank mechanism is good；Linkage is set up one and is stained with beam hanger, be stained with beam hanger
When Crankshaft motion, constantly swing, the lubricating oil in oil cylinder be thrown on crank mechanism,
The fluidity of motion making crank mechanism is more preferable, effectively reduces when crank mechanism moves
Abrasion, adds the service life of crank mechanism.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model
Fig. 2 is axonometric chart of the present utility model
Fig. 3 is with the bar linkage structure figure being stained with beam hanger in this utility model
Fig. 4 is the crankcase schematic diagram of multistage gas compressors
In figure, 1, bent axle；2, the first spring bearing；3, round sleeve；4, hexagonal
Axle sleeve；5, eccentric；6, the second spring bearing；7, connecting rod；8, crank throw；9,
Three spring bearings；20, blower fan；30, piston；40, coupling ring；41, axostylus axostyle；42、
Gusset piece；43, it is stained with beam hanger；50, oil cylinder.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
The crank mechanism of a kind of multistage gas compressors, is arranged on multistage gas compressors
In crankcase, including bent axle 1 and linkage, linkage is arranged on the song of bent axle 1
Turning on 8, bent axle 1 is connected with the power output shaft of multistage gas compressors, linkage
Number including multistage connecting rod, the number of multistage connecting rod and the cylinder of multistage gas compressors
Identical, and multistage connecting rod and multi-stage cylinder one_to_one corresponding arrange.During gas compressor work,
Driven by motor bent axle 1 rotates, and bent axle 1 promotes multistage link motion, and multistage connecting rod drives
In cylinder 30 are done reciprocating compression action and are compressed gas.
Bent axle 1 on crank mechanism arranges in crankcase, and bent axle 1 is provided with three supports
Bearing, starts setting up from along motor drive direction, the respectively first spring bearing 2, second
Support bearing 6 and the 3rd spring bearing 9, the first spring bearing 2 and the 3rd spring bearing 9
Being arranged on the two ends of bent axle, the second spring bearing 6 is arranged on the middle part of bent axle.So logical
Cross and three spring bearings be set, share uniformly to come by the active force of crank mechanism and bear,
The support effect making bent axle 1 is good, is not susceptible to transposition in bent axle 1 motor process.
Having on bent axle 1 and an only crank throw 8, crank throw 8 is positioned at the second spring bearing 6
With the 3rd between spring bearing 9, linkage is arranged on this crank throw 8 by bearing.
Linkage includes multiple connecting rod 7, the number of connecting rod 7 and the number of the cylinder of compressor
Corresponding.Connecting rod 7 includes axostylus axostyle 41, and the two ends of axostylus axostyle 41 are integrally formed with two connections
Ring 40, one of them coupling ring 40 is fixed by socket on crank throw 8, another coupling ring
40 and pneumatic cylinder in piston 30 driving coupling.Axostylus axostyle 41 and two coupling rings 40 are
Uniform thickness is arranged, and during gas compression, gas is relatively big for the active force of axostylus axostyle 41,
Axostylus axostyle 41 and two coupling ring 40 uniform thickness are arranged, it is ensured that the structure of whole connecting rod 7
Stability is more preferable.Further, at the both wings of axostylus axostyle 7 integrally formed with two pieces of gusset pieces
42, gusset piece 42 couples with two coupling rings 40, and is the side that coupling ring 40 intersects
It is arranged to inside arc on limit arrange so that it is stress more equalizes, total steady
Qualitative more preferably.
Crank mechanism can produce abrasion in motor process, adds lubrication in crank mechanism
The abrasion of the oily crank mechanism that can effectively slow down.In this utility model, the bottom at crankcase sets
Having put an oil cylinder 50, the opening of oil cylinder 50 faces crank mechanism, at linkage
One of them connecting rod 7 on be provided with one and be stained with beam hanger 43, be stained with beam hanger 43 in thin rod shape,
When be stained with beam hanger 43 move downward reach capacity position time, being stained with beam hanger 43 will not be with oil cylinder 50
Bottom to conflict.Good in order to ensure the kinetic stability of connecting rod 7, as being preferably stained with
Beam hanger 43 arranges the axostylus axostyle 41 opposite side relative to bent axle 1, will be stained with beam hanger 43 and arrange
Directly over promotion compressor on the connecting rod 7 of piston 30.During Crankshaft motion, it is stained with beam hanger
43 constantly repeat to swing along with connecting rod 7, and the lubricating oil in oil cylinder 50 is thrown to bent axle
In mechanism, it is ensured that the motion smoothness of crank mechanism is more preferable, weares and teares less.Further
, the peristome of oil cylinder 50 is horn-like setting, and the lubricating oil on bent axle 1 is made at gravity
With dripping to the peristome of oil cylinder 50 next time, and along the inclined-plane of oil cylinder 50 peristome again
It is flowed in oil cylinder 50, it is achieved that reusing of lubricating oil, reduces the pressure of compressor
Shorten this into.
In bent axle 1 motor process, bent axle 1 can be acted on by eccentric force, at compressor
During work, the high pressure gas compressed is known from experience has a bigger counteracting force to piston, should
Counteracting force is delivered on connecting rod 7 along with piston 30, and is eventually transferred on bent axle 1,
The robust motion making bent axle 1 is affected, and produces vibration, transposition.1, bent axle
On the one hand raw vibration and transposition influence whether the kinestate of bent axle 1 so that the pressure of gas
Contracting effect is bad, on the other hand also can aggravate the abrasion of crank mechanism.
This utility model increases the stationarity of bent axle 1 motion by increasing balance weight.Flat
Weighing apparatus block is generally eccentric 5, the offset of eccentric 5 and quality can be according to Crankshaft motion
During the eccentric force that is subject to of bent axle 1 design, specifically can be by calculating and experiment obtain
?.Eccentric 5 is arranged on the first spring bearing 2 and the second spring bearing 6 on bent axle 1
Between, there is in the connection holes on eccentric 5 connection slot, in connection slot, be provided with flat key,
Eccentric 5 is fixed on bent axle 1 by flat key.For further control eccentric 5
Position, is provided with axle sleeve at eccentric 5 away from the side of crank throw 8, and axle sleeve includes hexagonal
Axle sleeve 4 and round sleeve 3, hexagonal axle sleeve 4 and round sleeve 3 are fixed by socket at bent axle 1
On eccentric 5 is against on the second spring bearing 6 so that the fixed effect of eccentric 5
More preferably, it addition, in installation process, hexagonal axle sleeve 4 and round sleeve 3 also have fixed
Position effect, facilitates the installation of whole bent axle 1.
Further, it is fixedly provided with blower fan 20, wind at bent axle 1 away from the side of motor
The air port of machine 20 is relative with gas compressor, when gas compressor works, and bent axle 1
Rotational band wind symptom machine 20 works, and blower fan 20 produces wind-force to accelerate near gas compressor
Air flows, and accelerates the radiating rate of gas compressor greatly, prevents because of gas pressure
Contracting machine produces some faults because of overheated.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Claims (9)
1. a crank mechanism for multistage gas compressors, is arranged on multi-level gas pressure
In the crankcase of contracting machine, including bent axle and drive mechanism, described driver
Structure includes linkage, and one end of linkage couples with transmission of crankshaft,
The other end of linkage couples with the piston drive in compression cylinder, and it is special
Levying and be, the side of described bent axle is provided with a crank throw, described connecting rod machine
Structure driving coupling is on this crank throw, and the side of described crankshaft relative crank throw is also
Being provided with a balance weight, what described balance weight was eccentric is arranged on bent axle and inclined
Heart direction is contrary with the eccentric direction of described crank throw, and balance weight is used for balancing
Eccentric force during crank rotation.
Crank mechanism the most according to claim 1, it is characterised in that described
On bent axle, gap is provided with three spring bearings, the respectively first support
Bearing, the second spring bearing and the 3rd spring bearing, described crank throw position
Between the first spring bearing and the second spring bearing, described balance weight
Between the second spring bearing and the 3rd spring bearing.
Crank mechanism the most according to claim 1, it is characterised in that described
Balance weight is eccentric, and described eccentric is fixed on bent axle by flat key
On, the angle staggered between eccentric and crank throw is 180 degree；In bias
Take turns the side away from crank throw and be provided with hexagonal axle sleeve and a round sleeve, described
Hexagonal axle sleeve and round sleeve series connection are socketed on bent axle.
4., according to the crank mechanism described in claim 1,2 or 3, its feature exists
In, the linkage on described crank throw includes multiple connecting rod, described company
In being arranged on bent axle of bar gap, the number of connecting rod and gas compressor
Number of cylinders identical and their one_to_one corresponding is arranged.
Crank mechanism the most according to claim 4, it is characterised in that described
Connecting rod include that axostylus axostyle, described axostylus axostyle two ends are equipped with a coupling ring, one
Individual coupling ring couples with the piston drive of gas compressor, and another couples
Ring couples with transmission of crankshaft；The thickness phase of described axostylus axostyle and two coupling rings
With, at the both wings of axostylus axostyle integrally formed with gusset piece, described gusset piece with
Two coupling rings couple, and the arc that the side of gusset piece is inside sets
Meter.
Crank mechanism the most according to claim 5, it is characterised in that at gas
The crankcase bottom of gas compressor is additionally provided with an oil cylinder, at linkage
Being additionally provided with one on one of them connecting rod and be stained with beam hanger, described is stained with beam hanger in carefully
Shaft-like and one-body molded at connecting rod away from the side of axostylus axostyle.
Crank mechanism the most according to claim 6, it is characterised in that described
Oil cylinder opening surface be horn-like setting, described beam hanger of being stained with stretches into oil cylinder
Part all the time in the depth bounds of oil cylinder.
Crank mechanism the most according to claim 6, it is characterised in that described
Beam hanger of being stained be arranged on the connecting rod promoting the piston directly over oil cylinder.
Crank mechanism the most according to claim 1, it is characterised in that described
One end of bent axle be connected with the power output shaft of motor, the other end also sets
Having a blower fan, described blower fan is used for air-cooled gas compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033937.3U CN205533077U (en) | 2016-01-14 | 2016-01-14 | Multistage gas compressor's crank mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620033937.3U CN205533077U (en) | 2016-01-14 | 2016-01-14 | Multistage gas compressor's crank mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533077U true CN205533077U (en) | 2016-08-31 |
Family
ID=56764695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620033937.3U Expired - Fee Related CN205533077U (en) | 2016-01-14 | 2016-01-14 | Multistage gas compressor's crank mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840457A (en) * | 2016-01-14 | 2016-08-10 | 宁波百瑞天然气高压压缩机有限公司 | Crankshaft mechanism of multistage gas compressor |
-
2016
- 2016-01-14 CN CN201620033937.3U patent/CN205533077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840457A (en) * | 2016-01-14 | 2016-08-10 | 宁波百瑞天然气高压压缩机有限公司 | Crankshaft mechanism of multistage gas compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180114 |