CN107701396B - A kind of clearance adjusting device of piston for compressor cylinder - Google Patents
A kind of clearance adjusting device of piston for compressor cylinder Download PDFInfo
- Publication number
- CN107701396B CN107701396B CN201711084275.8A CN201711084275A CN107701396B CN 107701396 B CN107701396 B CN 107701396B CN 201711084275 A CN201711084275 A CN 201711084275A CN 107701396 B CN107701396 B CN 107701396B
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- Prior art keywords
- piston
- internal
- cylinder
- blind hole
- internal screw
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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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
-
- 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
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The present invention relates to clearance regulation technology fields between cylinder and piston, especially a kind of clearance adjusting device of piston for compressor cylinder, including cylinder and the piston being slidably connected positioned at cylinder interior, piston right side wall center axial restraint is connected with the piston rod that control piston is slided in cylinder interior, offers a plurality of internal screw threads on piston left side wall and adjusts blind hole.A kind of clearance adjusting device of piston for compressor cylinder of the invention adjusts blind hole by opening up the internal screw thread of hexagonal double-ended bolt in built-in on piston left side, using internal piston there is the inside intercommunicating pore of transverse linkage bar to connect interior hexagonal double-ended bolt and internal telescopic rod, internal telescopic rod and measuring rod is controlled while interior hexagonal double-ended bolt is rotated and adjusted to stretch inside pilot hole and observation slot respectively, it is not only easy to adjust, it reequips at low cost, and trim is simple, leakproofness facilitates observation to adjust gap state.
Description
Technical field
The present invention relates to clearance regulation technology field between cylinder and piston, especially a kind of piston for compressor cylinder
Clearance adjusting device.
Background technique
Because the working time of reciprocating compressor and working strength are all special big, in work high-intensitive for a long time
Under, fraction of loosening can be all more or less generated between piston rod and piston or piston rod and crosshead, at this moment cylinder and piston
If without clearance volume between, piston and cylinder will generate cylinder accident of hitting, it is serious will fatal crass, and if without remaining
Piston can drain the gas in cylinder in each stroke if gap volume, and at this moment the valve of cylinder inlet and outlet is being opened
When it is all special acutely not stable enough, it is bigger to the damage of valve.And the gas processed when compressor operating is not
100% dry gas, the vapor in gas liquefies during compression, if since liquid has Incoercibility gas
There is no that liquid hit phenomenon will be generated if clearance volume in cylinder, huge impact is generated to compressor, slightly abnormal punching in short-term
Hitting may be less problematic, but often for a long time and heavier liquid hammer, can make the deformation of compressor, rupture, even broken and direct
Damage compressor.
Clearance volume has extremely important effect within the compressor, but the size of clearance volume has sternly in the design
The regulation of lattice, clearance volume is about the 3%-8% of displacement under normal circumstances, and pressure is higher, cylinder bore compared with
In small compresser cylinder, stayed clearance volume is usually 5%-12%, if because clearance volume is too small, will increase piston with
The collision probability of cylinder, security risk is especially high, does not have the effect of clearance volume.If clearance volume is too big, compressor
Efficiency will reduction sharply, production capacity is low, and increase of consuming energy.So the clearance volume of compressor is wanted in the design process
By stringent calculating, a most reasonable value is determined.
However systematic error in actual production, installed the practical clearance volume of later compressor often and originally
There is any discrepancy for the clearance volume of design.When practical clearance volume and design clearance volume enter and leave especially big, it is necessary to reinstall
Piston because the quality of piston especially big installation when it is especially inconvenient.And the number of piston is special in multi-stage compression
It is more, a large amount of time can be wasted if reinstalling one by one, and inevitable due to systematic error, may
Still there is very big discrepancy between practical clearance volume and design clearance volume after reinstalling.And in actual production
If operating condition changes, for example the air inflow of compressor changes or the capacity of compressor changes, and at this time compresses
The clearance volume of machine cylinder and piston requires to change, and calculates although the variable quantity of clearance volume can be redesigned by design side
It is then issued to client, but the disassembly of piston adjustment installation needs to send back to original production producer.Or manufacturer sends someone to debug.
All special trouble.Wasting manpower and material resources, and compressor is often the core machine in a plant produced, once shut down etc.
It will stop working in entire factory, will cause a large amount of economic loss.Now in the world general clearance regulative mode be
The top aperture of compresser cylinder is increasing the small cylinder that piston is housed, and the piston in cylinder can be stingy by being mounted on
Handle or motor outside cylinder, automatic or manual regulating piston position change the clearance volume of cylinder, but general in the world
Clearance volume method of adjustment have a following disadvantage: 1. increase costs because increased on the basis of script piston and
A series of equipment such as cylinder, make compressor increase a large number of expense on the basis of script；2. leakproofness is poor, live because adjusting
Plug has connection with the external world, has very big difficulty in sealing, and can not accomplish 100% sealing；3. increase outer dimension,
Compressor has very big requirement to outer dimension in design, and especially to the compressor for needing to install additional outer storehouse, outer dimension is got over
The manufacture difficulty and manufacturing cost in big outer storehouse are higher；4. it is practical lower, because compressor is generally multi-stage compression now, often
A cylinder may only be adjusted by having multiple cylinders to be axially connected together opening adjusting at one end.Applicability in multi-stage compression
It is especially low.
So being badly in need of one kind in present compressor redundant gap volume adjustment simply, convenient, effectively and applicability is extensive
Regulative mode.
Summary of the invention
The technical problem to be solved by the present invention is providing one kind in order to solve the problems, such as above-mentioned background technique and changing
Into piston for compressor cylinder clearance adjusting device, solve the problems, such as above-mentioned background technique.
The technical solution adopted by the present invention to solve the technical problems is: a kind of clearance adjusting of piston for compressor cylinder
Device, including cylinder and the piston being slidably connected positioned at cylinder interior, the piston right side wall center axial restraint connects
It is connected to the piston rod that control piston is slided in cylinder interior, it is blind that a plurality of internal screw threads adjustings are offered on the piston left side wall
Hole, the piston rod inner correspond to and offer a plurality of bar shaped pilot holes, the piston rod inside internal screw thread adjusting blind hole
The corresponding guiding hole site of lateral wall offers the bar shaped observation slot being connected with pilot hole, and the internal piston opens up useful
The inside intercommunicating pore of blind hole and pilot hole is adjusted in connection internal screw thread, the inside intercommunicating pore is internally provided with transverse linkage
Bar, the transverse linkage bar are located at internal screw thread and adjust blind hole end by squeezing spring and internal screw thread adjusting blind hole inner sidewall elasticity
Connection, the pilot hole internal activity are connected with internal telescopic rod, the nearly internal connection nose end insertion of the inside telescopic rod
Transverse linkage bar is fixedly connected with transverse linkage bar one end, the inside telescopic rod close up survey slot end be screwed connect it is useful
In cooperating the measuring rod observed slot and show internal clearance adjusting situation, the internal screw thread adjusting blind hole internal whorl is connected with interior
Hexagonal double-ended bolt, the measuring rod are stretched inside observation slot by interior hexagonal double-ended bolt rotation control.
Further, the observation slot lateral wall aperture position is fixed with for closed observation slot outer openings
Transparent sealing window.
Further, very close to each other between the pilot hole inner sidewall and internal telescopic rod lateral wall.
Further, the transverse linkage bar is located at internal screw thread adjusting blind hole end and is located at extruding spring and interior hexagonal double-ended bolt
Between.
The invention has the advantages that a kind of clearance adjusting device of piston for compressor cylinder of the invention passes through in work
The internal screw thread that hexagonal double-ended bolt in built-in is opened up on plug left side adjusts blind hole, has the inside of transverse linkage bar using internal piston
Intercommunicating pore connects interior hexagonal double-ended bolt and internal telescopic rod, the internal telescopic rod of control and survey while interior hexagonal double-ended bolt is rotated and adjusted
Gauge rod stretches inside pilot hole and observation slot respectively, and not only easy to adjust, repacking is at low cost, and trim is simple, leakproofness
Might as well, facilitate observation to adjust gap state.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the schematic diagram of internal structure of piston in the present invention.
In figure: 1. cylinders, 2. pistons, 3. piston rods, 4. internal screw threads adjust blind hole, 5. pilot holes, 6. observation slots, inside 7.
Intercommunicating pore, 8. transverse linkage bars, 9. squeeze springs, 10. inside telescopic rods, 11. measuring rods, hexagonal double-ended bolt in 12..
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
The clearance adjusting device of Fig. 1 and a kind of piston for compressor cylinder shown in Fig. 2, including cylinder 1 and be located at cylinder 1
The piston 2 of internal slide connection, 2 right side wall center axial restraint of piston are connected with control piston 2 in 1 internal slide of cylinder
Piston rod 3,6 internal screw threads are offered on 2 left side wall of piston and adjust blind holes 4, internal screw thread adjusting blind hole correspond to inside piston rod 3
6 bar shaped pilot holes 5 are offered inside 4,3 lateral wall of piston rod corresponds to 5 position of pilot hole and offers to be connected with pilot hole 5
Bar shaped observe slot 6, the inside intercommunicating pore 7 that blind hole 4 and pilot hole are adjusted for being connected to internal screw thread is offered inside piston 2, it is interior
Portion's intercommunicating pore 7 is internally provided with transverse linkage bar 8, and transverse linkage bar 8 is located at internal screw thread and adjusts 4 end of blind hole by squeezing spring 9
4 inner sidewall elastic connection of blind hole is adjusted with internal screw thread, 5 internal activity of pilot hole is connected with internal telescopic rod 10, internal telescopic rod
10 nearly internal 7 end of intercommunicating pore insertion transverse linkage bars 8 are fixedly connected with 8 one end of transverse linkage bar, and internal 10 close up of telescopic rod is surveyed
6 end of slot, which is screwed, to be connected with for cooperating observation slot 6 to show that internal clearance adjusts the measuring rod 11 of situation, and internal screw thread adjusts blind
4 internal whorl of hole is connected with interior hexagonal double-ended bolt 12, and measuring rod 11 is stretched inside observation slot 6 by interior hexagonal double-ended bolt 12 rotation control
Contracting.
Further, observation 6 lateral wall aperture position of slot is fixed with for the transparent of 6 outer openings of closed observation slot
Hermetyic window, further, there are gaps between 10 lateral wall of 7 inner sidewall of pilot hole and internal telescopic rod, further, laterally join
Lever 8 is located at internal screw thread and adjusts 4 end of blind hole between extruding spring 9 and interior hexagonal double-ended bolt 12, a kind of compressor of the invention
It is blind by the internal screw thread adjusting for opening up hexagonal double-ended bolt 12 in built-in on 2 left side of piston with the clearance adjusting device of piston-cylinder
Hole 4 connects interior hexagonal double-ended bolt 12 and internal telescopic rod 10 using the inside intercommunicating pore 7 inside piston 2 with transverse linkage bar 8,
Internal telescopic rod 10 and measuring rod 11 are controlled while interior hexagonal double-ended bolt 12 is rotated and adjusted respectively in pilot hole 5 and observation slot 6
Inside is flexible, not only easy to adjust, and repacking is at low cost, and trim is simple, and leakproofness facilitates observation to adjust gap state.
The operating condition scope of application of compressor is determined according to the design data of compressor first, then according to customer requirement and
The size of cylinder piston calculates the clearance volume of standard, determines compressor according to the size of the operating condition scope of application and cylinder piston
The total size of clearance volume finally drills through accordingly piston according to the difference range of the range of clearance volume and standard clearance volume
The fine thread hole of size and number, but the intensity effect of more pairs of pistons of threaded hole is bigger, so should not influence to live
Selection drills through the number and depth of threaded hole in the case where plug working strength.
Next outer-hexagonal stud is threaded into hole by allen wrench as shown in Fig. 1, by the screw thread of leakage
Pore volume, which is incorporated in the clearance volume of requirement, recalculates clearance volume.Then it is installed according to new clearance volume.Installation
After debugging finishes, the depth of stud is readjusted according to the actual conditions of test run.Its clearance volume is allowed to meet life
It produces and requires.
Compressor can be made to meet maximum condition range with minimum cost variation by this patent, improve compression
The economic benefit of machine.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (4)
1. a kind of clearance adjusting device of piston for compressor cylinder, including cylinder (1) are connected with cylinder (1) internal slide is located at
Piston (2), it is characterized in that: piston (2) right side wall center axial restraint be connected with control piston (2) in cylinder
(1) piston rod (3) of internal slide offers a plurality of internal screw threads on the piston (2) left side wall and adjusts blind hole (4), institute
Corresponding internal screw thread adjusts and offers a plurality of bar shaped pilot holes (5), the work inside blind hole (4) inside the piston rod (3) stated
Stopper rod (3) lateral wall corresponds to pilot hole (5) position and offers bar shaped observation slot (6) being connected with pilot hole (5), described
The inside intercommunicating pore (7) that blind hole (4) and pilot hole (5) are adjusted for being connected to internal screw thread is offered inside piston (2), described is interior
Portion's intercommunicating pore (7) is internally provided with transverse linkage bar (8), and the transverse linkage bar (8) is located at internal screw thread and adjusts blind hole (4) end
Blind hole (4) inner sidewall elastic connection, the connection of the pilot hole (5) internal activity are adjusted by squeezing spring (9) and internal screw thread
Have internal telescopic rod (10), closely internal intercommunicating pore (7) end of the inside telescopic rod (10) is inserted into transverse linkage bar (8) and lateral
Interlocking bar (8) one end is fixedly connected, and inside telescopic rod (10) the close up survey slot end is screwed to be connected with to be seen for cooperating
It surveys slot (6) and shows that internal clearance adjusts the measuring rod (11) of situation, the internal screw thread adjusts blind hole (4) internal whorl and is connected with
Interior hexagonal double-ended bolt (12), the measuring rod (11) are flexible inside observation slot (6) by interior hexagonal double-ended bolt (12) rotation control.
2. the clearance adjusting device of a kind of piston for compressor cylinder according to claim 1, it is characterized in that: the sight
It surveys slot (6) lateral wall aperture position and is fixed with the transparent sealing window for closed observation slot (6) outer openings.
3. the clearance adjusting device of a kind of piston for compressor cylinder according to claim 1, it is characterized in that: described leads
To very close to each other between hole (5) inner sidewall and internal telescopic rod (10) lateral wall.
4. the clearance adjusting device of a kind of piston for compressor cylinder according to claim 1, it is characterized in that: the cross
It is located at internal screw thread to interlocking bar (8) and adjusts blind hole (4) end between extruding spring (9) and interior hexagonal double-ended bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084275.8A CN107701396B (en) | 2017-11-07 | 2017-11-07 | A kind of clearance adjusting device of piston for compressor cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711084275.8A CN107701396B (en) | 2017-11-07 | 2017-11-07 | A kind of clearance adjusting device of piston for compressor cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701396A CN107701396A (en) | 2018-02-16 |
| CN107701396B true CN107701396B (en) | 2019-05-07 |
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ID=61178347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711084275.8A Active CN107701396B (en) | 2017-11-07 | 2017-11-07 | A kind of clearance adjusting device of piston for compressor cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701396B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185098A (en) * | 2018-10-22 | 2019-01-11 | 安徽寅时压缩机制造有限公司 | A kind of elastic pressure release piston applied to conchoid technique compresses machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2596004A (en) * | 1947-01-24 | 1952-05-06 | Phillips Petroleum Co | Clearance pocket type compressor piston |
| GB693082A (en) * | 1950-09-06 | 1953-06-24 | Gen Motors Corp | Improvements in compressors for refrigerator systems |
| GB725099A (en) * | 1952-09-03 | 1955-03-02 | Gen Motors Corp | Improved adjustable-capacity compressor for refrigeration systems |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN104564603A (en) * | 2013-10-18 | 2015-04-29 | 贺尔碧格压缩机技术控股有限公司 | Adjusting device for an adjusting piston of a variable clearance space of a reciprocating compressor |
-
2017
- 2017-11-07 CN CN201711084275.8A patent/CN107701396B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2596004A (en) * | 1947-01-24 | 1952-05-06 | Phillips Petroleum Co | Clearance pocket type compressor piston |
| GB693082A (en) * | 1950-09-06 | 1953-06-24 | Gen Motors Corp | Improvements in compressors for refrigerator systems |
| GB725099A (en) * | 1952-09-03 | 1955-03-02 | Gen Motors Corp | Improved adjustable-capacity compressor for refrigeration systems |
| CN201170162Y (en) * | 2008-01-04 | 2008-12-24 | 沈阳鼓风机(集团)有限公司 | Remaining gap valve regulation apparatus |
| CN104564603A (en) * | 2013-10-18 | 2015-04-29 | 贺尔碧格压缩机技术控股有限公司 | Adjusting device for an adjusting piston of a variable clearance space of a reciprocating compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107701396A (en) | 2018-02-16 |
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Effective date of registration: 20201221 Address after: 232000: 50m to the east of Hehuai road and north of Beizhan Road, Shannan new area, Huainan City, Anhui Province Patentee after: Huainan Baibang Pneumatic Technology Co.,Ltd. Address before: Workshop 1, no.8521 Huangshan Avenue, Bengbu City, Anhui Province 233000 Patentee before: BENGBU GAOKE RUILI COMPRESSOR Co.,Ltd. |
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Effective date of registration: 20211201 Address after: 232000 B-3 # 101, Internet economy industrial park, high tech Zone, Huainan City, Anhui Province Patentee after: Huainan Yinyou Electrical Technology Co.,Ltd. Address before: 232000: 50m to the east of Hehuai road and north of Beizhan Road, Shannan new area, Huainan City, Anhui Province Patentee before: Huainan Baibang Pneumatic Technology Co.,Ltd. |