CN106837798B - Split composite star wheel for single-screw compressor and preparation process of split composite star wheel - Google Patents
Split composite star wheel for single-screw compressor and preparation process of split composite star wheel Download PDFInfo
- Publication number
- CN106837798B CN106837798B CN201710166687.XA CN201710166687A CN106837798B CN 106837798 B CN106837798 B CN 106837798B CN 201710166687 A CN201710166687 A CN 201710166687A CN 106837798 B CN106837798 B CN 106837798B
- Authority
- CN
- China
- Prior art keywords
- star wheel
- wheel frame
- sheet
- frame
- sheets
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/12—Polyetheretherketones, e.g. PEEK
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to a split composite star wheel for a single screw compressor, which comprises an integrally formed star wheel frame and a plurality of star wheel sheets clamped on the star wheel frame, wherein the star wheel frame is in a horizontal ring shape, the outer edge of the ring is in a tooth shape, each tooth is clamped with one star wheel sheet, one ends of two adjacent star wheel sheets close to the circle center of the star wheel frame are mutually matched, each tooth of the star wheel frame and each star wheel sheet are respectively provided with a pin hole for aligning the positions of the star wheel frame and the star wheel sheets, and after the installation is finished, a positioning pin simultaneously penetrates through the pin holes on the star wheel frame and the star wheel sheets. Compared with the prior art, the invention breaks the whole star wheel into parts, and fixes the star wheel sheet on the star wheel frame through the dovetail groove and the pin, so that the star wheel sheet becomes a rigid body, thereby effectively solving the problem of the self warping deformation of the star wheel due to the size and the material characteristics and laying a foundation for improving the performance of the single-screw compressor unit; meanwhile, the invention saves the cost and makes a contribution to reducing the investment of factory production.
Description
Technical Field
The invention relates to the field of fluid machinery, in particular to a split composite star wheel for a single-screw compressor and a preparation process thereof.
Background
A single screw compressor is a widely used fluid machine for compressing gas to increase the pressure of the gas. It is mainly used for gas synthesis in chemical industry; catalytic cracking, desulfurization and hydrogenation control in petroleum refining; drilling and oil field gas injection in oil extraction industry; coke oven gas hydrogen in the steel industry; air conditioning, freezing and refrigerating in the refrigeration industry; gas transport, separation, etc., and are used in a wide variety of aerodynamic applications such as wind machines, instrument control, vehicle braking, painting, spraying, and military weaponry systems. The structure of the single-screw compressor is shown in figure 1, the single-screw compressor comprises a high-precision meshed meshing pair consisting of a screw 5 and a star wheel 6, and the meshing degree directly influences the efficiency of the single-screw compressor. Factors that influence the accuracy of engagement of the pair of meshing pairs include the accuracy of the machining of the screw and the star wheel, and the accuracy of the position of the star wheel relative to the screw. The screw is a metal part, so that the machining precision is easy to guarantee; secondly, the position of the star wheel relative to the screw is ensured during assembling and adjusting of the machine, and the processing precision of the screw and the star wheel is also one of the factors for ensuring the assembling precision; and the star wheel is generally made of 6-10 mm PEEK (polyether-ether-ketone) plates (or sheet materials), the PEEK belongs to high polymer plastic materials, and particularly, the star wheel is easy to warp and deform, so that the processing precision of the star wheel is extremely difficult to guarantee. Therefore, key factors influencing the performance of the single-screw compressor are formed by solving the processing deformation of the star wheel and improving the processing precision of the star wheel.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the split composite star wheel with high processing precision for the single-screw compressor and the preparation process thereof.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a compound star gear of components of a whole that can function independently for single screw compressor, compound star gear of components of a whole that can function independently includes integrated into one piece's star wheel frame and a plurality of star wheel pieces of joint on the star wheel frame, the star wheel frame is the horizontally ring form, is the cusp at the outward flange of ring, and a star wheel piece of equal joint on every tooth, two adjacent star wheel pieces agree with each other near the one end in star wheel frame centre of a circle, all be equipped with a pinhole that is used for aiming at star wheel frame and star wheel piece position on every tooth of star wheel frame and every star wheel piece, the installation is accomplished the back, and the locating pin passes the pinhole that is located on star wheel frame and star.
The split composite star wheel can assemble or disassemble the star wheel frame and the plurality of star wheel sheets, is convenient to assemble and disassemble, particularly when a certain star wheel sheet is damaged, the whole star wheel sheet needs to be replaced by the existing star wheel, but the split composite star wheel only needs to replace one star wheel sheet, so that the cost is saved, and the efficiency is improved. In addition, through setting up the pinhole, can guarantee that the position of star wheel frame and star wheel piece is correct, can not influence the accuracy of whole star wheel.
The middle part of each tooth surface of the planet carrier is provided with a dovetail groove, and the dovetail grooves are arranged along the radial direction of the planet carrier.
The center of the bottom of the dovetail groove is provided with a strip-shaped bulge which is arranged along the radius direction of the planet carrier. The long-strip-shaped bulges are arranged, so that the star wheel frame and the star wheel sheet are more stably matched, and the assembly is more convenient.
The bottom of each star wheel sheet is provided with a bulge matched with the dovetail groove, and the middle part of each bulge is provided with a strip-shaped groove matched with the strip-shaped bulge.
Two side edges of each tooth of the planet carrier are inclined edges in the thickness direction of the planet carrier, and the inclination of one side edge is greater than that of the other side edge; the two side edges of each star wheel sheet are oblique edges in the thickness direction, and the inclination of one side edge is greater than that of the other side edge; the side edge with larger gradient on the star wheel plate is not on the same side as the side edge with larger gradient on the star wheel frame teeth.
The star wheel frame is made of steel, and the star wheel sheet is made of peek resin. The PEEK resin (polyether-ether-ketone) is a special engineering plastic with excellent performance, has more remarkable advantages compared with other special engineering plastics, has the advantages of high temperature resistance of 260 ℃, excellent mechanical performance, good self-lubricating property, chemical corrosion resistance, flame retardance, peeling resistance, wear resistance, strong nitric acid resistance, concentrated sulfuric acid resistance, radiation resistance and super-strong mechanical performance, and can be used for high-end science and technology such as machinery, nuclear engineering, aviation and the like. The star wheel is formed by steel and the peek resin, so that the star wheel is higher in mechanical property and not easy to deform.
A preparation method of the split composite star wheel for the single-screw compressor comprises the following steps:
(1) selecting the size and the number of teeth of a star wheel frame according to the size of the single-screw compressor, and preparing the star wheel frame and star wheel sheets matched with the star wheel frame in an integral injection molding or die pressing mode;
(2) inserting the bottom of the star wheel piece on the upper surface of the star wheel frame until the star wheel piece is superposed with the pin holes on the star wheel frame, and pushing the star wheel piece into the teeth of the star wheel frame along the radius direction of the star wheel frame through the mutual matching of the bulge and the dovetail groove until the pin holes of the star wheel piece and the dovetail groove are superposed;
(3) inserting the positioning pins into pin holes on the star wheel sheet and the star wheel frame to fix the star wheel sheet and the star wheel frame;
(4) and sequentially fixing a plurality of star wheel sheets on the star wheel frame to obtain the split composite star wheel.
Compared with the prior art, the beneficial effects of the invention are embodied in the following aspects:
(1) the invention breaks the whole star wheel into parts, and fixes the star wheel sheet on the star wheel frame through the dovetail groove and the pin, so that the star wheel sheet and the star wheel frame become a rigid body, thereby effectively solving the problem of self warping deformation of the star wheel due to the size and the material characteristics, and laying a foundation for improving the performance of the single-screw compressor unit;
(2) the problem of small-size star gear change machine processing jumbo size star gear is solved, easy dismounting practices thrift the cost, makes contributions for the factory production reduction investment.
Drawings
FIG. 1 is a schematic connection diagram of a conventional single screw compressor;
FIG. 2 is a schematic structural view of the split compound star wheel of the present invention;
FIG. 3 is a schematic cross-sectional view of D-D in FIG. 2;
fig. 4 is a schematic cross-sectional view of E-E in fig. 2.
The star wheel comprises a star wheel frame 1, a dovetail groove 11, a long-strip-shaped bulge 12, a star wheel sheet 2, a bulge 21, a long-strip-shaped groove 22, a pin hole 3, a positioning pin 4, a screw rod 5 and a star wheel 6.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
Example 1
A split composite star wheel for a single screw compressor is structurally shown in figures 2, 3 and 4 and comprises an integrally formed star wheel frame 1 and a plurality of star wheel sheets 2 clamped on the star wheel frame 1, wherein the star wheel frame 1 is in a horizontal circular ring shape, the outer edge of the circular ring is in a tooth shape, each tooth is clamped with one star wheel sheet 2, one ends of two adjacent star wheel sheets 2 close to the circle center of the star wheel frame 1 are mutually matched, each tooth of the star wheel frame 1 and each star wheel sheet 2 are respectively provided with a pin hole 3 for aligning the positions of the star wheel frame 1 and the star wheel sheet 2, and after installation is completed, a positioning pin 4 simultaneously penetrates through the pin holes 3 on the star wheel frame 1 and the star wheel sheets 2.
The split composite star wheel can assemble or disassemble the star wheel frame 1 and the plurality of star wheel sheets 2, is convenient to disassemble and assemble, particularly when a certain star wheel sheet 2 is damaged, the whole star wheel sheet 2 needs to be replaced by the existing star wheel, but the split composite star wheel only needs to replace one star wheel sheet 2, so that the cost is saved, and the efficiency is improved. In addition, the pin holes 3 are arranged, so that the positions of the star wheel frame 1 and the star wheel sheet 2 can be ensured to be correct, and the accuracy of the whole star wheel cannot be influenced.
The middle part of each tooth surface of the planet carrier 1 is provided with a dovetail groove 11, and the dovetail groove 11 is arranged along the radius direction of the planet carrier 1.
The center of the bottom of the dovetail groove 11 is provided with a long strip-shaped bulge 12, and the long strip-shaped bulge 12 is arranged along the radius direction of the planet carrier 1. The long strip-shaped bulge 12 is arranged, so that the star wheel frame 1 and the star wheel sheet 2 can be matched more stably, and the assembly is more convenient.
The bottom of each star wheel piece 2 is provided with a bulge 21 matched with the dovetail groove 11, and the middle part of each bulge 21 is provided with a strip-shaped groove 22 matched with the strip-shaped bulge 12.
Two side edges of each tooth of the planet carrier 1 are inclined edges in the thickness direction of the planet carrier 1, and the inclination of one side edge is greater than that of the other side edge; two side edges of each star wheel sheet 2 are oblique edges in the thickness direction, and the inclination of one side edge is greater than that of the other side edge; the side with larger inclination on the star wheel sheet 2 is not on the same side with the side with larger inclination on the star wheel frame 1.
The material of the star wheel frame 1 is steel, and the material of the star wheel sheet 2 is peek resin. The PEEK resin (polyether-ether-ketone) is a special engineering plastic with excellent performance, has more remarkable advantages compared with other special engineering plastics, has the advantages of high temperature resistance of 260 ℃, excellent mechanical performance, good self-lubricating property, chemical corrosion resistance, flame retardance, peeling resistance, wear resistance, strong nitric acid resistance, concentrated sulfuric acid resistance, radiation resistance and super-strong mechanical performance, and can be used for high-end science and technology such as machinery, nuclear engineering, aviation and the like. The star wheel is formed by steel and the peek resin, so that the star wheel is higher in mechanical property and not easy to deform.
A preparation method of the split composite star wheel for the single-screw compressor comprises the following steps:
(1) selecting the size and the number of teeth of the planet carrier 1 according to the size of the single-screw compressor, and preparing the planet carrier 1 and a planet wheel sheet 2 matched with the planet carrier 1 in an integral injection molding or die pressing mode;
(2) inserting the bottom of the star wheel piece 2 on the upper surface of the star wheel frame 1 until the star wheel piece 2 is superposed with the pin hole 3 on the star wheel frame 1, and pushing the star wheel piece 2 into the teeth of the star wheel frame 1 along the radius direction of the star wheel frame 1 through the mutual matching of the bulge 21 and the dovetail groove 11 until the pin holes 3 of the star wheel piece and the teeth are superposed;
(3) the positioning pins 4 are inserted into the pin holes 3 on the star wheel sheet 2 and the star wheel frame 1 to fix the star wheel sheet 2 and the star wheel frame 1;
(4) and sequentially fixing a plurality of star wheel sheets 2 on the star wheel frame 1 to obtain the split composite star wheel.
Claims (3)
1. The split composite star wheel for the single-screw compressor is characterized by comprising an integrally formed star wheel frame (1) and a plurality of star wheel sheets (2) clamped on the star wheel frame (1), wherein the star wheel frame (1) is in a horizontal circular ring shape, the outer edge of the circular ring is in a tooth shape, each tooth is clamped with one star wheel sheet (2), one ends, close to the circle center of the star wheel frame (1), of two adjacent star wheel sheets (2) are mutually matched, each tooth of the star wheel frame (1) and each star wheel sheet (2) are respectively provided with a pin hole (3) used for aligning the positions of the star wheel frame and the star wheel sheet, and after the installation is finished, a positioning pin (4) simultaneously penetrates through the pin holes (3) on the star wheel frame (1) and the star wheel sheets (2);
the middle part of each tooth surface of the planet carrier (1) is provided with a dovetail groove (11), and the dovetail grooves (11) are arranged along the radius direction of the planet carrier (1); the center of the bottom of the dovetail groove (11) is provided with a strip-shaped bulge (12), the strip-shaped bulge (12) is arranged along the radius direction of the star wheel frame (1), the bottom of each star wheel sheet (2) is provided with a bulge (21) matched with the dovetail groove (11), and the middle part of each bulge (21) is provided with a strip-shaped groove (22) matched with the strip-shaped bulge (12);
two side edges of each tooth of the star wheel frame (1) are inclined edges in the thickness direction of the star wheel frame (1), and the inclination of one side edge is greater than that of the other side edge; two side edges of each star wheel sheet (2) are oblique edges in the thickness direction, and the inclination of one side edge is greater than that of the other side edge; the side edge with larger inclination on the star wheel sheet (2) and the side edge with larger inclination on the teeth of the star wheel frame (1) are not on the same side.
2. The split composite star wheel for the single screw compressor according to claim 1, wherein the material of the star wheel frame (1) is steel, and the material of the star wheel sheet (2) is peek resin.
3. A method for preparing a split composite star wheel for a single screw compressor according to claim 1 or 2, characterized in that it comprises the following steps:
(1) selecting the size and the number of teeth of the planet carrier (1) according to the size of the single-screw compressor, and preparing the planet carrier (1) and the planet wheel sheets (2) matched with the planet carrier in an integral injection molding or die pressing mode;
(2) inserting the bottom of the star wheel sheet (2) on the upper surface of the star wheel frame (1) until the star wheel sheet (2) is superposed with the pin hole (3) on the star wheel frame (1);
(3) inserting the positioning pins (4) into the pin holes (3) on the star wheel sheet (2) and the star wheel frame (1) to fix the star wheel sheet (2) and the star wheel frame (1);
(4) and (3) fixing a plurality of star wheel sheets (2) on the star wheel frame (1) in sequence to obtain the split composite star wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166687.XA CN106837798B (en) | 2017-03-20 | 2017-03-20 | Split composite star wheel for single-screw compressor and preparation process of split composite star wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166687.XA CN106837798B (en) | 2017-03-20 | 2017-03-20 | Split composite star wheel for single-screw compressor and preparation process of split composite star wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106837798A CN106837798A (en) | 2017-06-13 |
| CN106837798B true CN106837798B (en) | 2020-09-01 |
Family
ID=59129937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710166687.XA Active CN106837798B (en) | 2017-03-20 | 2017-03-20 | Split composite star wheel for single-screw compressor and preparation process of split composite star wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837798B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654380B (en) * | 2017-11-14 | 2019-01-29 | 江西红海力能源科技有限公司 | A kind of single screw compressor spider piece |
| CN111136426B (en) * | 2019-12-31 | 2021-01-19 | 西安交通大学 | Anti-warping star wheel sheet of single-screw compressor and manufacturing process and mounting process of anti-warping star wheel sheet |
| CN111237190B (en) * | 2020-01-09 | 2021-11-30 | 浙江名豹机电设备有限公司 | Energy-saving single-screw air compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330818Y (en) * | 1998-01-08 | 1999-07-28 | 查济瑞 | Assembled blade wheel structure for single helical lobe compressor |
| CN2884890Y (en) * | 2006-03-16 | 2007-04-04 | 郭玉卿 | Impeller blade body of impeller type oxygen charger |
| CN101153596A (en) * | 2006-09-29 | 2008-04-02 | 上海开利涡普机械有限公司 | Compound spider piece used for single-screw compressor |
| CN204327911U (en) * | 2014-12-12 | 2015-05-13 | 杭州九钻机械有限公司 | A kind of sprocket wheel |
| WO2016190558A1 (en) * | 2015-05-28 | 2016-12-01 | 한국에어로(주) | Screw compressor integrated with synchronous motor |
| CN206655819U (en) * | 2017-03-20 | 2017-11-21 | 好米动力设备有限公司 | A kind of split compound spider for single screw compressor |
-
2017
- 2017-03-20 CN CN201710166687.XA patent/CN106837798B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2330818Y (en) * | 1998-01-08 | 1999-07-28 | 查济瑞 | Assembled blade wheel structure for single helical lobe compressor |
| CN2884890Y (en) * | 2006-03-16 | 2007-04-04 | 郭玉卿 | Impeller blade body of impeller type oxygen charger |
| CN101153596A (en) * | 2006-09-29 | 2008-04-02 | 上海开利涡普机械有限公司 | Compound spider piece used for single-screw compressor |
| CN204327911U (en) * | 2014-12-12 | 2015-05-13 | 杭州九钻机械有限公司 | A kind of sprocket wheel |
| WO2016190558A1 (en) * | 2015-05-28 | 2016-12-01 | 한국에어로(주) | Screw compressor integrated with synchronous motor |
| CN206655819U (en) * | 2017-03-20 | 2017-11-21 | 好米动力设备有限公司 | A kind of split compound spider for single screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106837798A (en) | 2017-06-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106837798B (en) | Split composite star wheel for single-screw compressor and preparation process of split composite star wheel | |
| CN203784227U (en) | Gear | |
| CN203527032U (en) | Hole positioning machining clamp | |
| CN206655819U (en) | A kind of split compound spider for single screw compressor | |
| CN206415807U (en) | A kind of assembly tooling of power industry steam turbine shroud band formula dividing plate leaf grating | |
| CN203371796U (en) | Tool for preventing deformation of root of megawatt blade | |
| CN206468535U (en) | A kind of star-wheel for single screw compressor | |
| CN101623769A (en) | Processing method of porous tube plate of fuel oil steam injection boiler | |
| CN209614861U (en) | A kind of Tilting Pad block reparation dedicated unit | |
| CN108818368B (en) | Assembling clamp and assembling method for slot type partition plate | |
| CN110842467A (en) | Cold machining method suitable for repairing holes of steel thin-wall parts of gas turbine | |
| CN204572555U (en) | A kind of stator blade of reserved inter-stage test hole | |
| Jung et al. | Structural Safety of Nozzle Plate using Simulation | |
| CN108302042B (en) | Star wheel for single screw compressor | |
| CN203742677U (en) | Nozzle casing centering structure suitable for supercharger | |
| CN115464386B (en) | Decomposing tool and decomposing method for end bearing assembly of main pump regulator of aero-engine | |
| CN103470309A (en) | Segmented combined type rotor | |
| CN211966991U (en) | Consumable random clamp for grinding and polishing blade switching R and blade root vertical surface | |
| CN221622215U (en) | Aerospace machining positioning device | |
| CN221547709U (en) | Novel spliced gear | |
| CN218518210U (en) | Mounting device for processing and positioning lower part structure of precombustion chamber | |
| CN203508832U (en) | Fixture for heat shaping of inwardly-concaved part | |
| CN113513374B (en) | Conveniently detachable compressor stationary blade ring of ship gas turbine and assembling method thereof | |
| CN208468100U (en) | Grinder fixture | |
| CN112727554B (en) | Aeroengine spoiler and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |