CN103085029A - Large reciprocating compressor piston extracting and remounting device - Google Patents
Large reciprocating compressor piston extracting and remounting device Download PDFInfo
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- CN103085029A CN103085029A CN201110340334XA CN201110340334A CN103085029A CN 103085029 A CN103085029 A CN 103085029A CN 201110340334X A CN201110340334X A CN 201110340334XA CN 201110340334 A CN201110340334 A CN 201110340334A CN 103085029 A CN103085029 A CN 103085029A
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Abstract
A large reciprocating compressor piston extracting and remounting device comprises a frame (3) and is characterized in that the frame (3) is provided with a self-adaptive V-shaped supporting wheel mechanism used for supporting a piston, a piston pumping mechanism is fixedly mounted on a support of the frame (3) by an overturning frame (5) through a bolt (6), a screw (10) is arranged in front of a piston joint (9) and pressed on a screw rod (8) through a thrust ball bearing (7), the pumping mechanism is further provided with an additional pipe (11), and a lifting mechanism is composed of lifting screw rod components (19) and (34) and lifting guide rods (20) and (35) respectively arranged on the front portion and the rear portion of the frame (3). Lifting of a workbench is realized by guiding through the two guide rods (20) and (35) and by bearing through the lifting screw rod components (19) and (34). By mounting the self-adaptive V-shaped supporting wheel mechanism, the piston pumping mechanism and the lifting mechanism on a same rack, extracting and remounting of the piston are realized in a mechanical manner, and the large reciprocating compressor piston extracting and remounting device is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to the large reciprocating compressor piston and extract, return assembling device out.
Background technology
Booster compressor of petrifaction ethylene factory high-pressure polyethylene device divides six grades of compressions to reach the high pressure grade, have six pistons equal in length, that stroke is identical, the center is contour, diameter diminishes step by step, 700 millimeters of piston length, 1000 millimeters of maximum piston diameter of phi, 130 millimeters of minimum diameter Φ, maximum piston weight 780kg, minimum piston weight 110kg.
Distribution multi-level piston ring when the high pressure class requirement piston of compressor and cylinder satisfy little matched in clearance (not waiting from the 1-6 section 6-8 level piston ring that distributes respectively).The uniform piston that requires of multi-level piston ring possesses certain length dimension, has determined that piston also will have larger stroke from beginning to be drawn into to extract out fully in cylinder.Extract, return in the process of dress: it is the key technology target along cylinder center and piston axes line parallel that piston rod is subjected to force direction.
Large reciprocating compressor piston maintenance is frequent, in maintenance process the extraction of piston reach back the dress difficulty large, time-consuming, take a lot of work, the execute-in-place restriction is large, hanging device makes when lifting to be difficult for balance and centering near difficult, easily collides with.Realize piston freely, dismounting easily, piston moves on operating platform flexibly, it is inadequate only satisfying work functions, operating platform must possess good guidance quality, and piston reach back when filling extracting out, the assurance piston overlaps with the cylinder barrel axis.
In view of instructions for use and special environment, operating platform should possess adaptive ability when piston is carried in holder, and the surface that piston is carried in holder should be followed outside piston and be changed, and realizes from centering, guarantees that piston is to extract, return dress axis line position out constant.The situation in place that so neither needs checkout equipment also makes equipment easy to use.
Summary of the invention
The purpose of this invention is to provide a kind of large reciprocating compressor piston and extract, return assembling device out.Thereby the extraction that makes piston reaches back harmlessization of dress, shortens the repair time, improves the overhaul efficiency of compressor.Thereby can regulate the easy disassembly that realizes piston according to differences such as the size of place environment and institute's dismounting piston, weight.
Assembling device is extracted, returned to described large reciprocating compressor piston out, its four groups of self-adapting type V-arrangement wheel holding mechanisms are for being equipped with four groups of V-arrangement support roller groups that are symmetrically arranged on saddle (4), make piston mobile light in extraction, along with the outer of center of gravity moves, the piston center line is constant, can not tumble situation and certain axial activity space is arranged, being convenient to the attended operation of piston.
In the process that piston is extracted out, begin to be located by piston bore, in whole extraction and after extracting out, the axis that guarantees piston is front consistent in cylinder barrel with extraction, so be provided with four groups of special rolling type V shape iron centering structures on workbench, the plane of symmetry of four groups of V shape irons separately can left and right adjusting, and the opening of every pair of V shape iron can independently be regulated separately.When piston is progressively extracted out from cylinder barrel, when piston has just passed through a pair of V shape iron, regulate this to V shape iron, the left and right is rolled all contact with the piston circumference, make again piston axis unaffected, play the effect of a pair of support roller supporting piston.After the locking of this group V shape iron, begin again toward going out to take out piston, until the 4th group of V shape iron regulated and locked.When at this moment piston axially moved in four groups of V shape iron formula idler pulleies, piston axis was consistent all the time with before extracting out.
Piston is pumped mechanism by manually the screw rod before piston joint (10) being screwed into piston, and rotating threaded shaft (8) drives piston when leading screw (8) is mobile, realizes that piston pumps.Elevating mechanism is by former and later two elevating screw assemblies (19) (34) of rotation, Height Adjustment on request, after Height Adjustment puts in place, tripod (15) is fixed with bolt with vehicle frame, guarantee the firm of operating platform, when the dismounting piston, operating platform (13) height should be regulated, satisfy the height change of piston diameter variation and periphery.
Described vehicle frame (3) has 3 wheels (1) and is arranged on vehicle frame (3) by bolt (2), and 4 carrying legs (18) are arranged on vehicle frame (3) by screw rod (17).Respectively be provided with elevating screw assembly (19) (34) and a lifting guide pillar (20) (35) of regulating lifting before and after operating platform frame (13), elevating screw assembly (19) is fixed on operating platform frame (13) by nut (12), and lifting guide pillar (20) is fixedly mounted on operating platform frame (13) by screw (21).It is fixing by end cap (24) again that the needle bearing (23) of axle bed (33) is provided with axle sleeve (22), axle bed (33) is connected with left-right rotary screw mandrel (27) by V-arrangement left-right rotary nut (31), centring sleeve (32) is arranged on left-right rotary screw mandrel (27), it is upper fixing by the baffle plate that is located at two ends (25) that left-right rotary screw mandrel (27) is arranged on guide rail (29), is pressed on thrust bearing (26) by position adjustments nut (28).Described guide rail (29) is supported by carriage (30) and is arranged on operating platform frame (13), the vehicle frame (3) that tripod (15) is corresponding is provided with groove (16), and support (15) is arranged on vehicle frame (3) by bolt (14).Rollover stand (5) is fixedly mounted on the support of vehicle frame (3) by bolt (6), and the front screw rod (10) that is provided with of piston joint (9) is pressed on screw mandrel (8) by thrust ball bearing (7).The described structure of pumping also is provided with extension spray lance (11).
The present invention compares with technical background, and the beneficial effect that has is: assembling device is extracted, returned to described large reciprocating compressor piston out, its by self-adapting type V-arrangement wheel holding mechanism is installed on same frame, piston is pumped mechanism, elevating mechanism.Thereby realized the mechanical system extraction, returned the dress piston, it is simple in structure, easy to operate.
Description of drawings
Fig. 1 is mechanism principle schematic diagram of the present invention
Fig. 2 is A-A place structure cross-sectional schematic in Fig. 1 of the present invention
Fig. 3 is the self-adapting type V-arrangement wheel holding mechanism figure in the present invention 1
The specific embodiment
As shown in Figure 1, 2, 3, assembling device is extracted, returned to described large reciprocating compressor piston out, include vehicle frame (3), its characteristics are: described vehicle frame (3) has 3 wheels (1) and is arranged on vehicle frame (3) by bolt (2), 4 carrying legs (18) are arranged on vehicle frame (3) by screw rod (17), and the operation when it moves is: rotary screw (17) will carry leg and rise; Fall piston and pump screw mandrel (8) in mechanism, make it be in plumbness; Complete movement by steamboat (1).
Elevating mechanism includes and is separately positioned on that vehicle frame (3) is anterior, elevating screw assembly (19) (34) and the lifting guide pillar (20) (35) at rear portion, elevating screw assembly (19) is fixed on operating platform frame (13) by nut (12), and lifting guide pillar (20) is fixedly mounted on operating platform frame (13) by screw (21).Front end on operating platform frame (13) is by two guide rods (20) (35) guiding, by elevating screw assembly (19) (34) load-bearing.Led in gathering sill (16) by the connected nut (14) of both sides tripod (15) in the rear end of operating platform frame (13), after Height Adjustment puts in place, by connecting bolt (14), tripod (15) and vehicle frame (3) are fixed as one, by tripod (15) load-bearing.
the operating platform frame (13) of self-adapting type V-arrangement wheel holding mechanism is fixedly mounted on elevating screw assembly (19) by bolt (12), it is fixing by end cap (24) again that the needle bearing (23) of axle bed (33) is provided with axle sleeve (22), axle bed (33) is connected with left-right rotary screw mandrel (27) by V-arrangement left-right rotary nut (31), centring sleeve (32) is arranged on left-right rotary screw mandrel (27), it is upper fixing by the baffle plate that is located at two ends (25) that folding screw mandrel (27) is arranged on guide rail (29), be pressed on thrust bearing (26) by position adjustments nut (28).Described guide rail (29) is supported by carriage (30) and is arranged on operating platform frame (13), the vehicle frame (3) that tripod (15) is corresponding is provided with groove (16), and support (15) is arranged on vehicle frame (3) by bolt (14).
The plane of symmetry position adjustments nut (28) of left and right is tightened, rotation left-right rotary screw mandrel (27), and the support roller group relative position of two formation V-arrangements that are in tilted layout changes, and realizes the adjustment of openings of sizes, to adapt to the diameter of piston.
Unclamp plane of symmetry position adjustments nut (28) on one side, twist the nut of another side, consist of the support roller group plane of symmetry of V-arrangement to one side dislocation of nutting, otherwise the plane of symmetry that consists of V-arrangement support roller group misplaces oppositely.Make the plane of symmetry of V-arrangement support roller group on the axis of piston.
The rollover stand (5) of pumping mechanism is fixedly mounted on the support of vehicle frame (3) by bolt (6), and the front screw rod (10) that is provided with of piston joint (9) is pressed on screw mandrel (8) by thrust ball bearing (7).The described structure of pumping also is provided with extension spray lance (11).
When extracting piston out, screw mandrel (8) is pumped in rotation, extracts piston out, when piston during near first group of V-arrangement support roller, Yi Bian pull out piston, Yi Bian regulate folding and the plane of symmetry of first group of V-arrangement support roller group, two support rollers are contacted with piston fully, and piston moves support roller to begin to rotate.At this moment pull on out piston, make piston near next group V-arrangement support roller group, during to next group V-arrangement support roller group, regulate two support rollers as front method and contact with piston fully.Rear continuation is once analogized.Till to the last one group of V-arrangement support roller group adjusting is complete.
Claims (4)
1. assembling device is extracted, returned to the large reciprocating compressor piston out, vehicle frame (3) has 3 wheels (1) and is arranged on vehicle frame (3) by bolt (2), and 4 carrying legs (18) are arranged on vehicle frame (3) by screw rod (17).Respectively be provided with elevating screw assembly (19) (34) and a lifting guide pillar (20) (35) of regulating lifting before and after operating platform frame (13), elevating screw assembly (19) is fixed on operating platform frame (13) by nut (12), and lifting guide pillar (20) is fixedly mounted on operating platform frame (13) by screw (21).It is fixing by end cap (24) again that the needle bearing (23) of axle bed (33) is provided with axle sleeve (22), axle bed (33) is connected with left-right rotary screw mandrel (27) by V-arrangement left-right rotary nut (31), centring sleeve (32) is arranged on left-right rotary screw mandrel (27), it is upper fixing by the baffle plate that is located at two ends (25) that left-right rotary screw mandrel (27) is arranged on guide rail (29), is pressed on thrust bearing (26) by position adjustments nut (28).Described guide rail (29) is supported by carriage (30) and is arranged on operating platform frame (13), the vehicle frame (3) that tripod (15) is corresponding is provided with groove (16), and support (15) is arranged on vehicle frame (3) by bolt (14).Rollover stand (5) is fixedly mounted on the support of vehicle frame (3) by bolt (6), and the front screw rod (10) that is provided with of piston joint (9) is pressed on screw mandrel (8) by thrust ball bearing (7).The described structure of pumping also is provided with extension spray lance (11).
2. assembling device is extracted, returned to large reciprocating compressor piston according to claim 1 out, it is characterized in that before and after operating platform, elevating screw assembly (19) (34) and a lifting guide pillar (20) (35) of regulating lifting being arranged respectively, front end on operating platform frame (13) is by two guide rods (20) (35) guiding, by elevating screw assembly (19) (34) load-bearing.Led in gathering sill (16) by the connected nut (14) of both sides tripod (15) in the rear end of operating platform frame (13), after Height Adjustment puts in place, by connecting bolt (14), tripod (15) and vehicle frame (3) are fixed as one, by tripod (15) load-bearing.
3. large reciprocating compressor piston according to claim 1 is extracted out, return assembling device, the operating platform frame (13) that it is characterized in that self-adapting type V-arrangement wheel holding mechanism is fixedly mounted on elevating screw assembly (19) by bolt (12), it is fixing by end cap (24) again that the needle bearing (23) of axle bed (33) is provided with axle sleeve (22), axle bed (33) is connected with left-right rotary screw mandrel (7) by V-arrangement left-right rotary nut (31), centring sleeve (32) is arranged on left-right rotary screw mandrel (27), it is upper fixing by the baffle plate that is located at two ends (25) that folding screw mandrel (27) is arranged on guide rail (29), be pressed on thrust bearing (26) by position adjustments nut (28).Described guide rail (29) is supported by carriage (30) and is arranged on operating platform frame (13), the vehicle frame (3) that tripod (15) is corresponding is provided with groove (16), and support (15) is arranged on vehicle frame (3) by bolt (14).The plane of symmetry position adjustments nut (28) of left and right is tightened, rotation left-right rotary screw mandrel (27), and the support roller group relative position of two formation V-arrangements that are in tilted layout changes, and realizes the adjustment of openings of sizes, to adapt to the height of piston.Unclamp plane of symmetry position adjustments nut (28) on one side, twist the nut of another side, consist of the support roller group plane of symmetry of V-arrangement to one side dislocation of nutting, otherwise the plane of symmetry that consists of V-arrangement support roller group misplaces oppositely.Make the plane of symmetry of V-arrangement support roller group on the axis of piston.
4. assembling device is extracted, returned to large reciprocating compressor piston according to claim 1 out, the rollover stand (5) that it is characterized in that pumping mechanism is fixedly mounted on the support of vehicle frame (3) by bolt (6), and the front screw rod (10) that is provided with of piston joint (9) is pressed on screw mandrel (8) by thrust ball bearing (7).The described structure of pumping also is provided with extension spray lance (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110340334XA CN103085029A (en) | 2011-11-02 | 2011-11-02 | Large reciprocating compressor piston extracting and remounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110340334XA CN103085029A (en) | 2011-11-02 | 2011-11-02 | Large reciprocating compressor piston extracting and remounting device |
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| CN103085029A true CN103085029A (en) | 2013-05-08 |
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| CN201110340334XA Pending CN103085029A (en) | 2011-11-02 | 2011-11-02 | Large reciprocating compressor piston extracting and remounting device |
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| CN (1) | CN103085029A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097175A (en) * | 2014-07-09 | 2014-10-15 | 中船动力有限公司 | Demounting tool and method for shock absorber for diesel engine crankshaft |
| CN106625387A (en) * | 2017-02-28 | 2017-05-10 | 中国人民解放军空军勤务学院 | Special disassembling tool for air cylinder of horizontal diaphragm compressor |
| CN109357933A (en) * | 2018-12-10 | 2019-02-19 | 美钻深海能源科技研发（上海）有限公司 | One kind being based on scleroscopic hardness test frock clamp |
| CN110374932A (en) * | 2019-08-08 | 2019-10-25 | 西安陕鼓动力股份有限公司 | Compress machine core pack assembly, propulsion device and compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097175A (en) * | 2014-07-09 | 2014-10-15 | 中船动力有限公司 | Demounting tool and method for shock absorber for diesel engine crankshaft |
| CN106625387A (en) * | 2017-02-28 | 2017-05-10 | 中国人民解放军空军勤务学院 | Special disassembling tool for air cylinder of horizontal diaphragm compressor |
| CN109357933A (en) * | 2018-12-10 | 2019-02-19 | 美钻深海能源科技研发（上海）有限公司 | One kind being based on scleroscopic hardness test frock clamp |
| CN110374932A (en) * | 2019-08-08 | 2019-10-25 | 西安陕鼓动力股份有限公司 | Compress machine core pack assembly, propulsion device and compressor |
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Application publication date: 20130508 |