CN108397515B - The one order inertia dynamic balance mechanism of single-row reciprocating compressor - Google Patents
The one order inertia dynamic balance mechanism of single-row reciprocating compressor Download PDFInfo
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- CN108397515B CN108397515B CN201810184836.XA CN201810184836A CN108397515B CN 108397515 B CN108397515 B CN 108397515B CN 201810184836 A CN201810184836 A CN 201810184836A CN 108397515 B CN108397515 B CN 108397515B
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
- F16F15/262—Masses attached to pinions, camshafts or driving shafts for auxiliary equipment, e.g. for an oil pump
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention discloses a kind of one order inertia dynamic balance mechanism of single-row reciprocating compressor, including compressor crank shaft；Compressor crank shaft is equipped with a Driven by Coaxial gear；The opposite direction of two cranks on compressor crank shaft, respectively installs the equal balance weight of a quality, and the quality of balance weight is m0；The quality of the two balance weights is multiplied by balance weight radius of gyration r0Equal to the half of reciprocal inertia force amplitude；A driven gear is symmetrically respectively arranged in the radial direction of Driven by Coaxial gear, two sides, and diameter, modulus and the number of teeth of driven gear are identical as Driven by Coaxial gear；It is m that two quality, which are respectively arranged, in two driven gear shafts upwards00Balance quality；And meet following equation: 2r0m0+4r00m00=rms；r0m0=2r00m00.The present invention spends very low cost, so that it may which the first order reciprocating inertia force complete equipilibrium for realizing single-row compressor is zero by the balance weight and balance quality structure simple in this way of setting.
Description
Technical field
The invention belongs to Compressor Technology field, in particular to the one order inertia dynamic balance machine of a kind of single-row reciprocating compressor
Structure.
Background technique
Single-row reciprocating compressor is very extensive one of the compressor of purposes, as shown in Figure 1.From the dynamic of reciprocating compressor
Mechanical analysis show that the first order reciprocating inertia force and two-stage reciprocating inertia force of the crank linkage driving system of this compressor cannot
Autobalance, and one order inertia torque and second-order inertia torque are all zero.The more brake for vehicle of this compressor
Air pressure supply is pumped, pressure-air supply in terms of military project etc..
In real industrial circle, this single-row reciprocating compressor often generates very big vibration, seriously affects work
Environment, while the vibration of single-row reciprocating compressor also seriously affects the service life of piston and piston ring, especially alters to compressor
Oil has big influence.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of one order inertia dynamic balance mechanism of single-row reciprocating compressor
Technical problem.
To achieve the goals above, the present invention uses following technological means:
The one order inertia dynamic balance mechanism of single-row reciprocating compressor, including compressor crank shaft；Compressor crank shaft is equipped with one
A crank and a Driven by Coaxial gear；
The opposite direction of two cranks on compressor crank shaft, respectively installs the equal balance weight of a quality, and the quality of balance weight is
m0；The quality of the two balance weights is multiplied by balance weight radius of gyration r0Equal to the half toward complex inertia mass and throw of crankshaft product:
2m0r0=msr/2；
Wherein, msIt is the past complex inertia mass of piston rod and the throw of crankshaft of crankshaft with r；
A driven gear, diameter, the modulus of driven gear is symmetrically respectively arranged in the radial direction of Driven by Coaxial gear, two sides
Identical as Driven by Coaxial gear with the number of teeth, driven gear is intermeshed with Driven by Coaxial gear.
Further, two driven gear shafts press radius of gyration r upwardsoo, each two quality of setting are m00Balance quality,
The direction of four balance quality is all consistent with the direction of two balance weights on crankshaft；Four balance quality are away from single cylinder cylinder axis
Line is equidistant；And meet following equation:
2r0m0+4r00m00=rms
r0m0=2r00m00。
Further, driven gear is by dynamic equilibrium axis and its bearing block at both ends, the machine with single-row reciprocating compressor
Shell phase fixed knot.
Further, on same axis, two centrifugal mass m00The distance between two centrifugation matter on L and an other axis
Measure m00The distance between L it is equal, the mass center of four centrifugal mass is in same level and relative to compresser cylinder central axis
Line is symmetrical.
Compared with the existing technology, the invention has the following advantages: the reciprocal inertia of single order of the single-row compressor of the present invention
The structure of equalising torque respectively installs the equal balance weight of a quality by the opposite direction of two cranks on compressor crank shaft,
The radial direction of Driven by Coaxial gear, a driven gear is symmetrically respectively arranged in two sides, and is respectively arranged upwards in two driven gear shafts
Two balance quality；By the balance weight and balance quality structure simple in this way of setting, very low cost is spent, so that it may real
The first order reciprocating inertia force complete equipilibrium of existing single-row compressor is zero；As for two-stage reciprocating inertia force, due to its numerical value very little, only
As soon as be equivalent to former one order inertia power five/or so, be also allowed to exist.By the invention it is possible to eliminate single-row reciprocating pressure
Altering oil mass and mentioning for single-row piston of reciprocating compressor also can be effectively prevented in influence of the contracting machine vibration to engine and automobile
The reliability of high compressor itself.
Detailed description of the invention
Fig. 1 is existing single-row reciprocating compressor outline drawing；
Fig. 2 is a kind of gear layout drawing of the one order inertia dynamic balance mechanism of single-row reciprocating compressor of the present invention；
Specific embodiment
The index for evaluating a reciprocating compressor power balance quality mainly has: the first order reciprocating inertia force, single order are reciprocal
Moment of inertia, two-stage reciprocating inertia force and two-stage reciprocating inertia force square, usual second-order inertia power be one order inertia power five/
One or so, the frequency of second-order inertia power effect is 2 times of one order inertia power acting frequency.When designing compressor, one is pursued first
Third rank balance of shaking force, the followed by balance of two-stage reciprocating inertia force are balance of the single order toward complex moment of inertia, are finally
The balance of two-stage reciprocating inertia force square[1]。
Single-row vertical compressor is a kind of simplest reciprocating compressor, the first order reciprocating inertia force value are as follows:
Ⅰ1=msrω2cosθ
Two-stage reciprocating inertia force value are as follows:
I2=λ msrω2cos2θ。
In above formula, λ --- the ratio between throw of crankshaft and length of connecting rod, generally 0.2 or so.
ms--- the past complex inertia mass of vertical column, the sum of the one third including piston mass and connecting rod quality, kg；
The throw of crankshaft of r --- compressor crank shaft, m；
ω --- crankshaft rotation angle speed, 1/s；
θ --- crank angle.
In order to balance the first order reciprocating inertia force of single-row vertical compressor using method as simple as possible, in such as Fig. 2
One Driven by Coaxial gear 13 is set on the trunnion of shown compressor crank shaft 11, and Driven by Coaxial gear 13 can be set in crankshaft
Any position in length.It is driven that first driven gear 14 and second is set in the radial horizontal position of Driven by Coaxial gear 13
Gear 15, diameter, modulus and the number of teeth are identical as Driven by Coaxial gear 13；First driven gear 14 and the second driven gear 15 are logical
The bearing block for crossing axis and its both ends, be connected consolidation with casing.On 15 place axis of the first driven gear 14 and the second driven gear
Respectively two centrifugal mass m of arrangement00, centrifugal mass m00The radius of gyration be r00, they are all in the opposite direction of crank.In same root
On axis, centrifugal mass m00The distance between be L, centrifugal mass m00To being equidistant for compressor piston center line.In addition it is pressing
The balance quality of two balance the first order reciprocating inertia forces, balance weight m is arranged in the opposite direction of the crank of contracting machine crankshaft 110, balance
Quality m0The radius of gyration be r0, as a result, the reciprocating mass of compressor, the crank reciprocating mass balance weight of crankshaft, on driven gear
Balance weight between relationship are as follows:
2r0m0+4r00m00=rms
In formula, r0, r00, m0And m00Numerical value can be suitably chosen respectively, work as r0With r00Pass when equal, between centrifugal mass
System is m00=m0/ 2, keep total equation to set up.
The arranged direction angle of four balance quality on driven gear and the deflection of the balance weight on crankshaft are completely the same,
This makes it possible to the one order inertia power for effectively balancing single-row reciprocating compressor.
Bibliography
[1] Yu Yongzhang etc., positive displacement compressor technical manual, Beijing, China Machine Press, 2001
[2] Lin Mei, Sun Siying, Principles of Piston Compressor, Beijing, China Machine Press, 1987.
Claims (3)
1. the one order inertia dynamic balance mechanism of single-row reciprocating compressor, which is characterized in that including compressor crank shaft (11)；Compressor
Crankshaft (11) is equipped with a crank and a Driven by Coaxial gear (13)；
Two opposite directions of crank on compressor crank shaft (11) respectively install the equal balance weight of a quality, the quality of balance weight
For m0；The quality of the two balance weights is multiplied by balance weight radius of gyration r0Equal to past complex inertia mass and the one of throw of crankshaft product
Half: 2m0r0=msr/2；
Wherein, msIt is the past complex inertia mass of piston rod and the throw of crankshaft of crankshaft with r；
A driven gear, diameter, the modulus of driven gear is symmetrically respectively arranged in the radial direction of Driven by Coaxial gear (13), two sides
Identical as Driven by Coaxial gear (13) with the number of teeth, driven gear is intermeshed with Driven by Coaxial gear (13)；
Two driven gear shafts press radius of gyration r upwardsoo, each two quality of setting are m00Balance quality, four balance quality
Inceptive direction is all consistent with the direction of two balance weights on crankshaft；Four balance distance phases of the quality away from single cylinder cylinder centerline
Deng；And meet following equation:
2r0m0+4r00m00=rms
r0m0=2r00m00；
On same axis, two centrifugal mass m00The distance between with two centrifugal mass m on an other axis00The distance between
Equal, four centrifugal mass are in same level and symmetrical relative to compresser cylinder central axis.
2. the one order inertia dynamic balance mechanism of single-row reciprocating compressor according to claim 1, which is characterized in that driven tooth
Wheel is by dynamic equilibrium axis and its bearing block at both ends, and be connected consolidation with the casing of single-row reciprocating compressor.
3. the one order inertia dynamic balance mechanism of single-row reciprocating compressor according to claim 2, which is characterized in that two dynamic
Dynamic balance axis is parallel with compressor crank shaft, and the plane where the axis of three axis is horizontal plane, and in horizontal plane, two dynamic
Dynamic balance axis is symmetrical relative to crankshaft center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184836.XA CN108397515B (en) | 2018-03-06 | 2018-03-06 | The one order inertia dynamic balance mechanism of single-row reciprocating compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184836.XA CN108397515B (en) | 2018-03-06 | 2018-03-06 | The one order inertia dynamic balance mechanism of single-row reciprocating compressor |
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| Publication Number | Publication Date |
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| CN108397515A CN108397515A (en) | 2018-08-14 |
| CN108397515B true CN108397515B (en) | 2019-10-11 |
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| CN201810184836.XA Expired - Fee Related CN108397515B (en) | 2018-03-06 | 2018-03-06 | The one order inertia dynamic balance mechanism of single-row reciprocating compressor |
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| CN109723767B (en) * | 2019-01-23 | 2022-03-25 | 胡捷 | Vehicle speed reducer with power split output and differential function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121567Y (en) * | 2007-10-19 | 2008-09-24 | 无锡压缩机股份有限公司 | Reciprocating inertial force balancing structure of compressor |
| CN201284814Y (en) * | 2008-08-25 | 2009-08-05 | 苏州百胜动力机器有限公司 | Reciprocating inertial force balance mechanism for engine |
| CN102788114A (en) * | 2012-07-27 | 2012-11-21 | 湖南奔腾动力科技有限公司 | Variable radius engine crankshaft balancing mechanism |
| JP2014152609A (en) * | 2013-02-05 | 2014-08-25 | Honda Motor Co Ltd | Four-cylinder internal combustion engine |
| DE202015007594U1 (en) * | 2015-11-02 | 2015-12-10 | Gerhard Wolfrum | Hypocycloidal gearbox for reciprocating engines with a complete compensation of the mass forces and moments, a reduction of the friction power and an adjustment mechanism of the piston stroke with constant compression space or variable compression ratio |
| CN205503858U (en) * | 2015-11-10 | 2016-08-24 | 广州汽车集团股份有限公司 | Four jar engines inertial force balance mechanism of reciprocating |
| CN106907426A (en) * | 2017-04-06 | 2017-06-30 | 江苏常发农业装备股份有限公司 | The Dual-shaft balance mechanism and its balance method of a kind of single cylinder diesel |
-
2018
- 2018-03-06 CN CN201810184836.XA patent/CN108397515B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121567Y (en) * | 2007-10-19 | 2008-09-24 | 无锡压缩机股份有限公司 | Reciprocating inertial force balancing structure of compressor |
| CN201284814Y (en) * | 2008-08-25 | 2009-08-05 | 苏州百胜动力机器有限公司 | Reciprocating inertial force balance mechanism for engine |
| CN102788114A (en) * | 2012-07-27 | 2012-11-21 | 湖南奔腾动力科技有限公司 | Variable radius engine crankshaft balancing mechanism |
| JP2014152609A (en) * | 2013-02-05 | 2014-08-25 | Honda Motor Co Ltd | Four-cylinder internal combustion engine |
| DE202015007594U1 (en) * | 2015-11-02 | 2015-12-10 | Gerhard Wolfrum | Hypocycloidal gearbox for reciprocating engines with a complete compensation of the mass forces and moments, a reduction of the friction power and an adjustment mechanism of the piston stroke with constant compression space or variable compression ratio |
| CN205503858U (en) * | 2015-11-10 | 2016-08-24 | 广州汽车集团股份有限公司 | Four jar engines inertial force balance mechanism of reciprocating |
| CN106907426A (en) * | 2017-04-06 | 2017-06-30 | 江苏常发农业装备股份有限公司 | The Dual-shaft balance mechanism and its balance method of a kind of single cylinder diesel |
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| CN108397515A (en) | 2018-08-14 |
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