CN113953934B - Rotor coating premounting device and premounting method - Google Patents
Rotor coating premounting device and premounting method Download PDFInfo
- Publication number
- CN113953934B CN113953934B CN202111332832.XA CN202111332832A CN113953934B CN 113953934 B CN113953934 B CN 113953934B CN 202111332832 A CN202111332832 A CN 202111332832A CN 113953934 B CN113953934 B CN 113953934B
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- Prior art keywords
- rotor
- jig
- coating
- distance
- premounting
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- 239000011248 coating agent Substances 0.000 title claims abstract description 72
- 238000000576 coating method Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 239000007921 spray Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/08—Machines or devices designed for grinding seat surfaces; Accessories therefor for grinding co-operating seat surfaces by moving one over the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a rotor coating premounting device and a premounting method, wherein the premounting device comprises a frame; the rack is provided with a driving device, a distance adjusting device and a first jig for mounting the first rotor; the driving device is connected to the first rotor and used for driving the first rotor to rotate on the first jig; one side of the first jig is provided with a second jig for installing a second rotor, and the second rotor is rotationally connected with the second jig; the distance adjusting device is arranged on one side of the second jig and used for adjusting the distance between the first jig and the second jig so as to enable the first rotor and the second rotor to be meshed and driven to realize coating premounting of the first rotor and the second rotor. During the meshing transmission process of the first rotor and the second rotor, the first rotor and the second rotor are premilled by mutual meshing. After the coating is pre-ground, the actual gap between the meshing surfaces of the first rotor and the second rotor is corrected and controlled, the coating has good consistency and uniformity, and the phenomenon of blocking during rotor assembly is effectively avoided.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a rotor coating premiller and a premiller method.
Background
Screw compressors are a core component of commercial air conditioning units. The adopted screw compressor is a double screw type, and the working mode is that a compression chamber is formed by the reverse rotation of a female rotor and a male rotor, and the volume of the compression chamber is reduced, so that the suction, compression and exhaust processes are continuously completed.
In the working process, the air leakage of the compressor causes a great deal of energy efficiency loss. In order to solve the problem, a coating with high wear resistance and high adhesive force and a spraying process thereof are developed, and the coating is sprayed and sintered on the surface of a rotor of a screw compressor, so that the gap between the rotors is reduced, and the energy efficiency of the compressor is improved.
However, in the coating spraying process, the thickness of the coating is difficult to control, the consistency and uniformity of the coating after spraying and sintering are difficult to ensure, and particularly the spiral shape of the rotor is more difficult to uniformly spray, so that in practical application, the actual gap between the meshing surfaces of the female rotor and the male rotor is difficult to control, and the rotor is easy to be blocked during production and assembly.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the invention aims at: the rotor coating premiller has the advantages that the thickness of the coating can be controlled by premiller, the consistency and uniformity of the coating are good, and the phenomenon of blocking during rotor assembly is avoided.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a rotor coating premiller comprises a frame;
The rack is provided with a driving device, a distance adjusting device and a first jig for mounting the first rotor;
The driving device is connected to the first rotor and used for driving the first rotor to rotate on the first jig;
One side of the first jig is provided with a second jig for installing a second rotor, and the second rotor is rotationally connected with the second jig;
The distance adjusting device is arranged on one side of the second jig and used for adjusting the distance between the first jig and the second jig so as to enable the first rotor and the second rotor to be meshed and driven to realize coating premounting of the first rotor and the second rotor.
Further, the distance adjusting device comprises a base and a pushing rod, the first jig and the base are respectively fixedly arranged on the frame, the second jig is slidably connected to the base, and the pushing rod is connected to the second jig and used for driving the second jig to slide along the direction of the first jig.
Further, the push rod is connected to the base through threads.
Further, the push rod is in threaded connection with the base, and the base is provided with scale values.
Further, be equipped with the guide rail on the base, second tool sliding connection is in the guide rail, and guide rail and second tool are equipped with corresponding screw hole.
Further, a distance detection device is further arranged on the frame, and the distance detection device is arranged on one side of the second jig and is used for detecting a distance difference value between the first jig and the second jig before and after distance adjustment.
Further, the distance detection device is a dial indicator, the dial indicator is fixedly connected to the frame, and a measuring head of the dial indicator is abutted to the circumferential side wall of the second rotor.
Further, a leveling device is arranged at the bottom of the frame.
A method for pre-grinding a rotor coating comprises the following steps,
The distance adjusting device adjusts the distance between the first jig and the second jig, so that the first rotor and the second rotor are meshed and driven to realize coating premounting of the first rotor and the second rotor;
the first rotor is arranged on the first jig, and the second rotor is arranged on the second jig;
the first rotor is driven to rotate by a driving device.
Further, the method further comprises the step that the distance detection device obtains the coating premilled quantity of the first rotor and the second rotor, and the coating premilled quantity is obtained by detecting a distance difference value between the first jig and the second jig before and after distance adjustment.
In general, the invention has the following advantages:
The distance between the first jig and the second jig is shortened by utilizing the distance adjusting device, so that the first rotor and the second rotor are mutually close to each other and are meshed for transmission. During the meshing transmission process of the first rotor and the second rotor, the first rotor and the second rotor are premilled by mutual meshing. After the coating is pre-ground, the actual gap between the meshing surfaces of the first rotor and the second rotor is corrected and controlled, the coating uniformity is good, and the phenomenon of locking during rotor assembly is avoided.
Drawings
FIG. 1 is a schematic top view of a rotor coating pre-milling apparatus of the present invention.
Fig. 2 is a schematic front view of a rotor coating premounting device of the present invention.
Fig. 3 is a schematic side view of a rotor coating premounting device of the present invention.
Reference numerals:
1-motor, 2-reduction gear, 3-motor cabinet, 4-support part, 5-push rod, 6-percentage table, 7-measuring head, 8-base, 9-band pulley, 10-belt, 11-supporting mechanism, 12-supporting frame, 13-frame, 14-levelling device, 15-thimble, 21-first rotor, 22-second rotor.
Detailed Description
The present invention will be described in further detail below.
As shown in fig. 1 to 3, a rotor coating pre-grinding device comprises a frame 13;
the frame 13 is provided with a driving device, a distance adjusting device and a first jig for installing the first rotor 21;
The driving device is connected to the first rotor 21 and is used for driving the first rotor 21 to rotate on the first jig;
one side of the first jig is provided with a second jig for installing a second rotor 22, and the second rotor 22 is rotationally connected with the second jig;
The distance adjusting device is arranged on one side of the second jig and is used for adjusting the distance between the first jig and the second jig so as to enable the first rotor 21 and the second rotor 22 to be meshed and driven to realize coating premounting of the first rotor 21 and the second rotor 22.
In the present embodiment, the first rotor 21 and the second rotor 22 are only used to distinguish between the two rotors, and the first rotor 21 and the second rotor 22 may be a female rotor and a male rotor, respectively, or may be a male rotor and a female rotor, respectively.
Specifically, the first jig and the second jig are parallel to each other, and after the first rotor 21 and the second rotor 22 after the coating is sprayed are respectively mounted on the first jig and the second jig, the first rotor 21 and the second rotor 22 are also parallel to each other. The first rotor 21 is driven to rotate by a driving device, and then the distance between the first jig and the second jig is shortened by a distance adjusting device, so that the first rotor 21 and the second rotor 22 are close to each other and are meshed for transmission. During the meshing transmission of the first rotor 21 and the second rotor 22, the first rotor and the second rotor are premilled by meshing with each other. After the coating is pre-ground, the actual gap between the meshing surfaces of the first rotor 21 and the second rotor 22 is corrected and controlled, the uniformity and the uniformity of the coating are good, and the phenomenon of blocking during rotor assembly is avoided.
According to the rotor coating premiller, special design is not needed for a coating spraying process, the thickness of the meshing surface coating of the first rotor 21 and the second rotor 22 can be controlled by premiller, gaps among the rotors are further controlled, the consistency and uniformity of the coating are good, and the phenomenon of blocking during rotor assembly is avoided.
The distance adjusting device comprises a base 8 and a pushing rod 5, wherein the first jig and the base 8 are respectively fixedly arranged on a frame 13, the second jig is slidably connected to the base 8, and the pushing rod 5 is connected to the second jig and used for driving the second jig to slide along the direction of the first jig.
In this embodiment, the first jig is fixed in position, and the second jig can be adjusted in position to control the pressing force between the first rotor 21 and the second rotor 22. When the pushing rod 5 drives the second jig to slide on the base 8, the second jig can be made to approach or separate from the first jig. The movement amount of the second jig is adjusted, so that the coating premilled amount of the first rotor 21 and the second rotor 22 can be controlled, the control of the thickness of the coating is realized, the uniformity and the uniformity of the coating are good, and the phenomenon of blocking during rotor assembly is avoided.
The push rod 5 is screwed to the base 8. Because the threaded connection has a certain self-locking effect, the sliding of the position is not easy to occur when the push rod 5 drives the second jig to move, and the pre-grinding amount of the coating is controlled. The base 8 is provided with scale values, so that the moving amount of the pushing rod 5 for driving the second jig can be judged better, and the coating premounting amount can be controlled more conveniently.
The first jig and the second jig comprise two thimble 15 which are correspondingly arranged, and a V-shaped supporting mechanism 11 for supporting the rotor is arranged between the two thimble 15. Wherein, the V-shaped supporting mechanism 11 of the first rotor 21 is fixed in position, and the V-shaped supporting mechanism 11 of the second rotor 22 can slide to adapt to the position adjustment of the second rotor 22. The two ejector pins 15 are respectively abutted against the two end faces of the first rotor 21 or the second rotor 22, so that the first rotor 21 or the second rotor 22 cannot displace during rotation, and accurate coating premounting is facilitated.
Because the weight of the rotor is large, during feeding, the rotor is firstly transferred to the V-shaped supporting mechanism 11 by using the crane, the rotor is supported by using the V-shaped supporting mechanism 11, and then two ejector pins are respectively abutted against the end face of the rotor. When the rotor needs to be pre-ground, the V-shaped supporting mechanism 11 is lowered, so that the rotor is separated from the V-shaped supporting mechanism 11, and the rotation of the rotor is not affected.
In this embodiment, a guide rail is provided on the base 8, and an L-shaped fixing block is provided on the guide rail, and slides on the guide rail. The thimble of second tool is located on the L shape fixed block. The L-shaped fixing block and the guide rail are respectively provided with a plurality of threaded holes. When the thimble of the second jig moves to a certain position, the L-shaped fixing block is connected with the threaded hole of the guide rail through the bolt, so that the thimble of the second jig is firmly fixed at the position, displacement can not occur when two rotors are meshed for transmission, and accurate pre-grinding effect is facilitated.
One end of the pushing rod 5 is connected with a supporting part 4, and the supporting part 4 is tightly propped against the second rotor 22 through an L-shaped fixed block.
The frame 13 is also provided with a distance detection device, the distance detection device is arranged on one side of the second jig, and the coating premounting amount of the first rotor 21 and the second rotor 22 can be obtained by detecting the distance difference value between the first jig and the second jig before and after the distance adjustment. Not only can coarse adjustment be carried out from the scale value set up by the base 8, but also more accurate reading can be obtained from the distance detection device, and further more accurate coating premounting amount is obtained.
The distance detection device may be various measuring devices capable of measuring a minute range in the prior art. In this embodiment, the distance detecting device is a dial indicator 6, the dial indicator 6 is fixed to the frame 13 through the support frame 12, and the measuring head 7 of the dial indicator 6 abuts against the circumferential side wall of the second rotor 22.
After the screw is initially adjusted and positioned, the push rod 5 drives the second jig to approach the first jig and can be engaged and pre-ground. Because the measuring head 7 of the dial indicator 6 is abutted against the circumferential side wall of the second rotor 22, and the second jig moves towards the first jig, namely the second jig moves towards the direction away from the dial indicator 6, the measuring head 7 of the dial indicator 6 extends forwards, and the reading of the dial indicator 6 changes. The reading change value is the distance difference value before and after the distance adjustment between the first jig and the second jig, and is also the coating premolishing amount of the first premolishing. The coating premilled amount is compared to the intended premilled amount, and if the coating premilled amount has not yet reached the intended premilled amount, a second premilled may be continued, and so on. Because the index value of the dial indicator 6 is 0.01mm, and the measuring range is 0-3, 0-5 and 0-10 mm, the very accurate premilled amount can be obtained, and the accurate control of the coating thickness is facilitated.
The bottom of the frame 13 is provided with a leveling device 14 (leveling bolt), and after leveling, the flatness of the frame 13 and each mechanism arranged on the frame 13 can be ensured, so that an accurate pre-grinding effect can be obtained.
A method for pre-grinding a rotor coating comprises the following steps,
The distance adjusting device adjusts the distance between the first jig and the second jig, so that the first rotor 21 and the second rotor 22 are meshed and driven to realize coating pre-grinding of the first rotor 21 and the second rotor 22;
The first rotor 21 is mounted on a first jig, and the second rotor 22 is mounted on a second jig;
the first rotor 21 is driven to rotate by a driving device.
In the prior art, special coating spraying technology is generally adopted to sinter the surface of the rotor of the screw compressor, so that the clearance between the rotors is reduced, and the energy efficiency is improved. However, the spiral shape of the rotor is difficult to uniformly spray, so that in practical application, the actual gap between the meshing surfaces of the female rotor and the male rotor is difficult to control, the thickness of the coating cannot be controlled, and the phenomenon of seizure easily occurs during rotor assembly.
According to the invention, the coating spraying process is not required to be specially designed, the thickness of the meshing surface coating of the first rotor 21 and the second rotor 22 can be controlled by pre-grinding the coating, and then the gap between the rotors is controlled, so that the control of the thickness of the coating is realized, the uniformity and the uniformity of the coating are good, and the phenomenon of blocking during rotor assembly is avoided.
The present invention further includes the step of obtaining, by the distance detecting device, the coating pre-grinding amounts of the first rotor 21 and the second rotor 22, the coating pre-grinding amounts being obtained by detecting the difference in distance between the first jig and the second jig before and after the distance adjustment.
In this embodiment, the motor base 3 is disposed on the frame 13, the driving device is a motor 1, and the first rotor 21 is driven to rotate by the speed reducer 2, the belt pulley 9 and the belt 10, so that the first rotor 21 drives the second rotor 22 to reversely rotate. The input power of the motor 1 is adjustable and can be read in real time. The first rotor 21 rotational speed may be monitored and read.
After PEEK materials are sprayed on a first rotor 21 and a second rotor 22 of the compressor, the PEEK materials are fixedly placed on a rotor coating pre-grinding device, and the PEEK materials are sprayed on the whole or partial areas of the surface to be pre-ground through the rotation driven by a motor 1 and meshed transmission.
Referring to the feeding mode of the machine tool, each time the pre-grinding is rotated, an L-shaped fixed block supporting the second rotor 22 is fixed at a certain scale position on the guide rail, and after a certain coating thickness is ground, the L-shaped fixed block is gradually fed to the side of the first rotor 21 for a plurality of times.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (7)
1. A rotor coating premiller, characterized in that: comprises a frame;
The rack is provided with a driving device, a distance adjusting device and a first jig for mounting the first rotor;
The driving device is connected to the first rotor and used for driving the first rotor to rotate on the first jig;
One side of the first jig is provided with a second jig for installing a second rotor, and the second rotor is rotationally connected with the second jig;
The distance adjusting device is arranged on one side of the second jig and used for adjusting the distance between the first jig and the second jig so as to enable the first rotor and the second rotor to be meshed and driven to realize coating premilling of the first rotor and the second rotor;
The distance adjusting device comprises a base and a pushing rod, the first jig and the base are respectively fixedly arranged on the frame, the second jig is connected to the base in a sliding manner, and the pushing rod is connected to the second jig and used for driving the second jig to slide along the direction of the first jig;
the frame is also provided with a distance detection device which is arranged on one side of the second jig and used for detecting the distance difference value between the first jig and the second jig before and after the distance adjustment.
2. A rotor coating premiller according to claim 1, wherein: the push rod is in threaded connection with the base, and the base is provided with scale values.
3. A rotor coating premiller according to claim 2, wherein: the base is provided with a guide rail, the second jig is connected to the guide rail in a sliding mode, and the guide rail and the second jig are provided with corresponding threaded holes.
4. A rotor coating premiller according to claim 1, wherein: the first jig and the second jig comprise two thimble corresponding to each other, and a V-shaped supporting mechanism for supporting the rotor is arranged between the two thimble.
5. A rotor coating premiller according to claim 1, wherein: the distance detection device is a dial indicator fixedly connected to the frame, and a measuring head of the dial indicator is abutted to the circumferential side wall of the second rotor.
6. A rotor coating premiller according to claim 1, wherein: the bottom of the frame is provided with a leveling device.
7. A method of rotor coating premounting comprising a rotor coating premounting apparatus as defined in claim 1, wherein: the method also comprises the following steps of,
The distance adjusting device adjusts the distance between the first jig and the second jig, so that the first rotor and the second rotor are meshed and driven to realize coating premounting of the first rotor and the second rotor;
the first rotor is arranged on the first jig, and the second rotor is arranged on the second jig;
the first rotor is driven to rotate by a driving device;
the distance detection device obtains the coating premilled quantity of the first rotor and the second rotor, and the coating premilled quantity is obtained by detecting the distance difference value between the first jig and the second jig before and after the distance adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332832.XA CN113953934B (en) | 2021-11-11 | 2021-11-11 | Rotor coating premounting device and premounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111332832.XA CN113953934B (en) | 2021-11-11 | 2021-11-11 | Rotor coating premounting device and premounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113953934A CN113953934A (en) | 2022-01-21 |
| CN113953934B true CN113953934B (en) | 2024-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111332832.XA Active CN113953934B (en) | 2021-11-11 | 2021-11-11 | Rotor coating premounting device and premounting method |
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