CN103244548A - Split crank shaft structure of reciprocating compressor - Google Patents
Split crank shaft structure of reciprocating compressor Download PDFInfo
- Publication number
- CN103244548A CN103244548A CN2013101396355A CN201310139635A CN103244548A CN 103244548 A CN103244548 A CN 103244548A CN 2013101396355 A CN2013101396355 A CN 2013101396355A CN 201310139635 A CN201310139635 A CN 201310139635A CN 103244548 A CN103244548 A CN 103244548A
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- crank pin
- split
- main shaft
- connecting rod
- cylinder seat
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Abstract
The invention discloses a split crank shaft structure of a reciprocating compressor, which is applied to the field of reciprocating compressors. The split crank shaft structure comprises a main shaft part and a crank pin which are separated from each other, wherein one end of the main shaft part is in butt joint with the crank pin in an eccentric manner; and a balance block is arranged on the opposite side of the crank pin. According to the split crank shaft structure, a crank shaft adopts a split structure. When the structure is put into use, two ends of a connecting rod are respectively connected with a piston in a cylinder seat and the crank pin of the crank shaft, and then the crank pin is fixedly connected with the main shaft part. By the structure, the structural integrity of the cylinder seat and the connecting rod is kept, waste of processing of the cylinder seat, the connecting rod and the crank shaft is reduced, the processing cost is saved, and the production rate is improved.
Description
Technical field
The present invention is used for the reciprocal compressor field, particularly relates to a kind of crankshaft structure of reciprocal compressor.
Background technique
Reciprocal compressor belongs to positive displacement compressor, is to make the gas of a constant volume sequentially suck and discharge the compressor of enclosed space.Bent axle drivening rod in the compressor, connecting rod drives piston, and piston moves reciprocatingly.The piston motion changes the working chamber volume in the cylinder, when piston is moved to inner dead point by outer dead point, inlet open, outlet valve is in closed condition, and working chamber volume increases, and air is sucked into, when piston moves to inner dead point, suction valve cuts out, and finishes intake process, and it is maximum that working chamber volume reaches; Along with bent axle continues revolution, piston is moved to outer dead point by inner dead point, and this moment, active chamber became the volume of a sealing, and intracavity gas is compressed, reaches exhaust pressure, finishes compression process; Then outlet valve is opened, and the work intracavity gas is discharged cylinder fully, finishes exhaust process.
The linkage structure of existing reciprocal compressor cylinder seat, crankshaft-and-connecting-rod comprises following several, prior art one as shown in Figure 1, cylinder seat 4, bent axle 3 and connecting rod 5 are integral type, the compressor of this kind structure is provided with at cylinder seat 4 and dodges groove 41, during installation, connecting rod 5 passes dodges groove 41 bent axle 3 and piston is linked together, and dodges the installation that arranging of groove 41 made things convenient for connecting rod 5, but influenced the integrity of cylinder seat 4 structures, increased the processing cost of cylinder seat 4; Simultaneously, cylinder seat 4 is in the honing process, because the honing lever unbalance stress has reduced the perpendicularity precision in cylinder seat 4 axis holes and cylinder hole, makes in the compressor operating process, has increased piston wear and wasted work, reduces compressor efficiency and reliability.Prior art two as shown in Figure 2, cylinder seat 4 and bent axle 3 are integral type, connecting rod 5 is split type, the compressor of this kind structure is when assembling, two sections with connecting rod 5 are connected the back butt joint with piston respectively with bent axle 3, the structure of connecting rod 5 has avoided dodging the setting of groove 41, but split type connecting rod 5 connection part shape and structures are complicated, and production line automation assembling difficulty and reliability are not high; Therefore simultaneously, split type connecting rod 5 connection part installation requirements are higher, and processing difficulties though split type connecting rod 5 has lowered the processing cost of cylinder seat 4, has increased difficulty of processing and the processing charges of connecting rod 5.Prior art three as shown in Figure 3, bent axle 3 and connecting rod 5 are integral type, cylinder seat 4 is split type, the compressor of this kind structure is in when assembling, and connecting rod 5 and bent axle 3 be with after piston is connected respectively, fastening cylinder seat 4, this technology has been avoided the appearance of problem in prior art one and the prior art two, but split type cylinder seat 4 manufacturing procedures are various, and the Seiko precision is difficult to guarantee, and assembling exhaust casing seat 4 cylinder holes are difficult to assurance with axis hole perpendicularity precision.
In the above-mentioned prior art, bent axle 3 all adopts integral type, and the bent axle of integral type is the processing of satisfying different offsets, and crank shaft blank mould design mainly comprises two kinds: 1. need to design many molds by different offsets, this will cause the blank versatility to reduce, and increase the part stock; 2. satisfy different offsets and design a mold, this will cause adding the significant wastage of crankshaft material in man-hour.In addition, the bent axle of existing integral type needs to use special purpose grinder for realizing the processing of crank pin, and for different eccentric bent axles, grinding machine need be readjusted the main shaft Offset, this processing method inefficiency, and be difficult to realize automatic production.
Summary of the invention
For addressing the above problem, the invention provides a kind of maintenance cylinder seat and bar linkage structure integrity, save cylinder seat, connecting rod and bent axle processing cost, the split crankshaft structure of boosting productivity.
The technical solution adopted for the present invention to solve the technical problems is: the split crankshaft structure of reciprocal compressor, comprise main shaft part and crank pin that split arranges, and an end of main shaft part docks with crank pin off-centre and is provided with equilibrium block at the offside of crank pin.
Be further used as the improvement of technical solution of the present invention, main shaft part is provided with the groove of location crank pin.
Be further used as the improvement of technical solution of the present invention, main shaft part is that screw is connected or thread engagement connects or interference fit connects or glue adhering junction or welding with crank pin.
Beneficial effect of the present invention: among the present invention, bent axle adopts split type structure, during use, the two ends of connecting rod respectively with cylinder seat in piston and the crank pin of bent axle be connected, and then crank pin fixedlyed connected with main shaft part, this structure has kept the structural integrity of cylinder seat and connecting rod, has reduced the processing waste of cylinder seat, connecting rod and bent axle, save processing cost, improved productivity.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of prior art one of the present invention;
Fig. 2 is the structural representation of prior art two of the present invention;
Fig. 3 is the structural representation of prior art three of the present invention;
Fig. 4 is the structural representation of the embodiment of the invention;
Fig. 5 is embodiment of the invention assembling back structural representation.
Embodiment
With reference to Fig. 4, Fig. 5, the invention provides the split crankshaft structure of reciprocal compressor, comprise main shaft part 1 and crank pin 2 that split arranges, an end of main shaft part 1 docks with crank pin 2 off-centre and is provided with equilibrium block 11 at the offside of crank pin 2.
Among the present invention, bent axle 3 adopts split type structure, during use, the two ends of connecting rod 5 respectively with cylinder seat 4 in piston and the crank pin 2 of bent axle 3 be connected, and then crank pin 2 fixedlyed connected with main shaft part 1, this structure has kept the structural integrity of cylinder seat 4 and connecting rod 5, has reduced the processing waste of cylinder seat 4, connecting rod 5 and bent axle 3, save processing cost, improved productivity.
Adopt split type bent axle 3, what do not need to process installing connecting rods 5 on the cylinder seat 4 dodges groove 41, and cylinder seat 4 being kept perfectly property of structure have lowered the processing cost of cylinder seat 4, have improved the perpendicularity precision in cylinder seat 4 axis holes and cylinder hole.
Cooperate split type bent axle 3, connecting rod 5 can adopt integral type, and connecting rod 5 shape and structures of integral type are simple, easy processing, expense lower.
Split type bent axle 3, main shaft part 1 and crank pin 2 independent casting respectively make the machining allowance of crank pin 2 reduce greatly, thereby save the blank material of bent axle 3 that the parts standard degree also is improved; In addition, split type bent axle 3, main shaft part 1 is separated with crank pin 2, and main shaft part 1 and crank pin 2 all can be realized centreless grinding, and machining accuracy and work efficiency improve greatly, and can realize automatic production.
The employing of split type bent axle 3 has solved problems of the prior art: the two ends by connecting rod 5 respectively with cylinder seat 4 in piston and the crank pin 2 of bent axle 3 is connected, and then crank pin 2 is fixedlyed connected the installation question of solution connecting rod 5 with main shaft part 1; Cylinder seat 4 is not provided with dodges groove 41, solves the low problem of cylinder seat 4 processing difficulties, cylinder hole and axis hole perpendicularity precision in the prior art one; Adopt the connecting rod 5 of integral type, solve connecting rod 5 processing difficulties in the prior art two, problem that reliability is not high; The main shaft part 1 of bent axle 3 and crank pin 2 individual casts processing solves the problem that waste of material that the bent axle 3 of existing integral type causes and crank pin 2 processing difficulties, work efficiency are low, be difficult to realize automation.
As the preferred embodiment of the present invention, main shaft part 1 is provided with the groove 12 of location crank pin 2.
Groove 12 cooperatively interacts with crank pin 2, makes things convenient for the location and installation of crank pin 2 on main shaft part 1.
As the preferred embodiment of the present invention; main shaft part 1 is connected for screw with crank pin 2 or thread engagement connects or interference fit connects or the glue adhering junction; screw connection, thread engagement connection, interference fit connection, glue adhering junction, welding are the preferred main shaft part 1 of the present invention and crank pin 2 Placements, and other are equal to or similar detachable fixedly connected mode all falls into protection scope of the present invention.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (3)
1. the split crankshaft structure of reciprocal compressor, it is characterized in that: comprise main shaft part (1) and crank pin (2) that split arranges, an end of described main shaft part (1) docks with crank pin (2) off-centre and is provided with equilibrium block (11) at the offside of crank pin (2).
2. the split crankshaft structure of reciprocal compressor according to claim 1 is characterized in that: described main shaft part (1) is provided with the groove (12) of location crank pin (2).
3. the split crankshaft structure of reciprocal compressor according to claim 1 and 2 is characterized in that: described main shaft part (1) is connected for screw with crank pin (2) or thread engagement connects or interference fit connects or glue adhering junction or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101396355A CN103244548A (en) | 2013-04-19 | 2013-04-19 | Split crank shaft structure of reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101396355A CN103244548A (en) | 2013-04-19 | 2013-04-19 | Split crank shaft structure of reciprocating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103244548A true CN103244548A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101396355A Pending CN103244548A (en) | 2013-04-19 | 2013-04-19 | Split crank shaft structure of reciprocating compressor |
Country Status (1)
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| CN (1) | CN103244548A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289874A (en) * | 2014-09-30 | 2015-01-21 | 宝鸡石油机械有限责任公司 | Split crankshaft machining method |
| CN104421131A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, air conditioner and heat-pump water heater system |
| CN104533756A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Air compressor crankshaft and manufacturing process thereof |
| CN104791368A (en) * | 2015-02-28 | 2015-07-22 | 上海标五高强度紧固件有限公司 | Separable crankshaft processing process |
| CN107288845A (en) * | 2017-08-02 | 2017-10-24 | 安徽美芝制冷设备有限公司 | Bent axle and compressor for compressor |
| WO2018040351A1 (en) * | 2016-08-31 | 2018-03-08 | 安徽美芝制冷设备有限公司 | Crankshaft for reciprocating compressor and reciprocating compressor |
| CN108087415A (en) * | 2018-01-31 | 2018-05-29 | 十堰东峻汽车系统技术有限公司 | A kind of split type bent axle used for air compressor |
| CN111287941A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN116512008A (en) * | 2023-07-03 | 2023-08-01 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
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| US5894763A (en) * | 1996-01-19 | 1999-04-20 | Peters; Robert R. | Flywheel and crank apparatus |
| CN201106620Y (en) * | 2007-11-29 | 2008-08-27 | 重庆长安汽车股份有限公司 | Internal combustion engine combined crankshaft for minitype automobile |
| EP1967747A1 (en) * | 2007-03-08 | 2008-09-10 | Renato Garavello | Pin for a crank shaft journal, preferably for internal combustion engines |
| WO2009132695A1 (en) * | 2008-04-29 | 2009-11-05 | Gomecsys B.V. | Method of manufacturing a crankshaft and crankshaft manufactured according to the method |
| WO2010051843A1 (en) * | 2008-11-06 | 2010-05-14 | Gomecsys B.V. | Dismountable multi-piece crankshaft |
| DE102009015133A1 (en) * | 2009-03-31 | 2010-10-14 | Fev Motorentechnik Gmbh | Internal-combustion engine i.e. V-type two-cylinder internal combustion engine, for use as e.g. drive engine utilized for small car, has connecting rods axially arranged on side of section point on crankpin |
| CN201944100U (en) * | 2010-12-22 | 2011-08-24 | 江门隆固机械制造有限公司 | Novel engine crankshaft |
| CN201944101U (en) * | 2010-12-22 | 2011-08-24 | 江门隆固机械制造有限公司 | Novel large-power engine crankshaft |
| CN202007826U (en) * | 2011-02-22 | 2011-10-12 | 北京中清能发动机技术有限公司 | Crank, crankshaft, combined crankshaft and internal combustion engine or compressor applying combined crankshaft |
| CN202132368U (en) * | 2011-06-07 | 2012-02-01 | 北京中清能发动机技术有限公司 | Crankshaft, crank, crank throw of crank round slider mechanism, internal combustion engine and compression engine |
-
2013
- 2013-04-19 CN CN2013101396355A patent/CN103244548A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5894763A (en) * | 1996-01-19 | 1999-04-20 | Peters; Robert R. | Flywheel and crank apparatus |
| EP1967747A1 (en) * | 2007-03-08 | 2008-09-10 | Renato Garavello | Pin for a crank shaft journal, preferably for internal combustion engines |
| CN201106620Y (en) * | 2007-11-29 | 2008-08-27 | 重庆长安汽车股份有限公司 | Internal combustion engine combined crankshaft for minitype automobile |
| WO2009132695A1 (en) * | 2008-04-29 | 2009-11-05 | Gomecsys B.V. | Method of manufacturing a crankshaft and crankshaft manufactured according to the method |
| WO2010051843A1 (en) * | 2008-11-06 | 2010-05-14 | Gomecsys B.V. | Dismountable multi-piece crankshaft |
| DE102009015133A1 (en) * | 2009-03-31 | 2010-10-14 | Fev Motorentechnik Gmbh | Internal-combustion engine i.e. V-type two-cylinder internal combustion engine, for use as e.g. drive engine utilized for small car, has connecting rods axially arranged on side of section point on crankpin |
| CN201944100U (en) * | 2010-12-22 | 2011-08-24 | 江门隆固机械制造有限公司 | Novel engine crankshaft |
| CN201944101U (en) * | 2010-12-22 | 2011-08-24 | 江门隆固机械制造有限公司 | Novel large-power engine crankshaft |
| CN202007826U (en) * | 2011-02-22 | 2011-10-12 | 北京中清能发动机技术有限公司 | Crank, crankshaft, combined crankshaft and internal combustion engine or compressor applying combined crankshaft |
| CN202132368U (en) * | 2011-06-07 | 2012-02-01 | 北京中清能发动机技术有限公司 | Crankshaft, crank, crank throw of crank round slider mechanism, internal combustion engine and compression engine |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421131A (en) * | 2013-08-22 | 2015-03-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, air conditioner and heat-pump water heater system |
| CN104421131B (en) * | 2013-08-22 | 2016-08-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor, air-conditioning and heat pump water heater system |
| CN104289874B (en) * | 2014-09-30 | 2016-08-17 | 宝鸡石油机械有限责任公司 | A kind of split type method for processing crankshaft |
| CN104289874A (en) * | 2014-09-30 | 2015-01-21 | 宝鸡石油机械有限责任公司 | Split crankshaft machining method |
| CN104533756A (en) * | 2014-12-31 | 2015-04-22 | 浙江鸿友压缩机制造有限公司 | Air compressor crankshaft and manufacturing process thereof |
| CN104791368A (en) * | 2015-02-28 | 2015-07-22 | 上海标五高强度紧固件有限公司 | Separable crankshaft processing process |
| WO2018040351A1 (en) * | 2016-08-31 | 2018-03-08 | 安徽美芝制冷设备有限公司 | Crankshaft for reciprocating compressor and reciprocating compressor |
| CN107288845A (en) * | 2017-08-02 | 2017-10-24 | 安徽美芝制冷设备有限公司 | Bent axle and compressor for compressor |
| CN108087415A (en) * | 2018-01-31 | 2018-05-29 | 十堰东峻汽车系统技术有限公司 | A kind of split type bent axle used for air compressor |
| CN111287941A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN111287941B (en) * | 2018-12-10 | 2022-02-25 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN116512008A (en) * | 2023-07-03 | 2023-08-01 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
| CN116512008B (en) * | 2023-07-03 | 2023-09-12 | 扬州意得机械有限公司 | Balancing block processing equipment for industrial compressor and product thereof |
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Application publication date: 20130814 |