CN216504299U - Portable electric repairing and grinding tool for self-aligning inner wall of steam envelope - Google Patents
Portable electric repairing and grinding tool for self-aligning inner wall of steam envelope Download PDFInfo
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- CN216504299U CN216504299U CN202123200533.9U CN202123200533U CN216504299U CN 216504299 U CN216504299 U CN 216504299U CN 202123200533 U CN202123200533 U CN 202123200533U CN 216504299 U CN216504299 U CN 216504299U
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 27
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims 1
- 229920006362 Teflon® Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model provides a portable electric repairing and grinding tool for self-aligning the inner wall of a steam jacket, which comprises a polytetrafluoroethylene rod, a spring, oilstone strips and a driving motor, wherein at least two straight grooves are uniformly arranged on the circumferential wall of the polytetrafluoroethylene rod, the oilstone strips are arranged in each straight groove, the spring is arranged between the oilstone strip and the bottom of the straight groove, the oilstone strips can be arranged in a floating manner along the depth direction of the groove, and one end part of the spring is fixed at the bottom of the straight groove; and the output shaft of the driving motor drives the polytetrafluoroethylene rod to rotate. According to the utility model, the straight groove and the spring in the straight groove generate acting force on the oilstone strip, so that the oilstone strip is uniformly stressed in the honing process, the processing precision of the inner wall of the steam jacket is improved, the weight of a grinding tool is reduced, and meanwhile, the traditional machine tool honing is changed into the handheld driving motor for honing, so that the honing tool is light and convenient to use, the honing cost is reduced, and the working efficiency and the overhauling quality are improved.
Description
Technical Field
The utility model relates to the field of high-precision grinding of the inner wall of a steam seal sleeve, in particular to a portable electric repairing and grinding tool capable of automatically aligning the inner wall of the steam seal sleeve.
Background
The honing process is an efficient processing method which enables the processing surface of a workpiece to achieve high precision, high surface quality and long service life, and because the diameter of an inner hole of a steam jacket of a steam distribution mechanism is small and the hole depth is small, a person cannot stretch a hand into the hole to polish, a part to be processed is generally required to be transported to a professional manufacturer by a vehicle, and the inner wall of the steam jacket is ground by using a honing process. In the prior art, honing is generally realized by machine tool machining, a honing machine has the factors of high price, large volume, inconvenient movement and high maintenance cost, and manual honing has the defects of poor grinding effect and long time consumption. Therefore, in view of the above-mentioned disadvantages, a portable electric repairing tool for self-aligning the inner wall of the steam jacket is designed.
In addition, in the prior art, the oilstone strip and the honing head are fixed by tensioning the oilstone strip inwards through a closing spring which is vertical to the axis of the honing head, the floating space of the oilstone strip is small, and the oilstone strip cannot be tightly attached to the inner wall needing to be ground. Therefore, in view of the above-mentioned disadvantages, a portable electric repairing tool for self-aligning the inner wall of the steam jacket is designed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the portable self-alignment electric repairing and grinding tool for the inner wall of the steam jacket is provided, aiming at the characteristics of poor manual grinding effect, high outsourcing honing cost and long time consumption of the inner wall of the steam jacket of a steam turbine of a thermal power generating unit and the fact that an oilstone strip is not tightly attached to the ground inner wall.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a portable from electronic instrument of repairing of alignment vapour envelope inner wall, including polytetrafluoroethylene stick, spring, oilstone strip, driving motor, its characterized in that:
at least two straight grooves are uniformly arranged on the circumferential wall of the polytetrafluoroethylene rod, the oilstone strips are arranged in each straight groove, the springs are arranged between the oilstone strips and the bottoms of the straight grooves, the oilstone strips can be arranged in a floating mode along the depth direction of the grooves, and one end portions of the springs are fixed to the bottoms of the straight grooves;
and the output shaft of the driving motor drives the polytetrafluoroethylene rod to rotate.
Preferably, the number of the springs is at least two, and the springs are uniformly distributed in the straight grooves.
Preferably, a circular groove for fixing the spring is formed at the bottom of the straight groove.
Preferably, the straight groove is a long groove axially arranged along the polytetrafluoroethylene rod, a plurality of circular grooves are uniformly formed in the groove bottom along the long direction of the long groove, and the spring is correspondingly installed in each circular groove.
Preferably, a metal gasket attached to the side wall and the bottom of the straight groove is embedded in the straight groove, and the metal gasket is provided with a through hole corresponding to the circular groove.
Preferably, the number of the straight grooves is three.
Preferably, the edge of the oilstone strip is provided with a fillet structure or a chamfered structure.
Preferably, a hole with the depth not greater than the length of the polytetrafluoroethylene rod is formed in the axis of one end of the polytetrafluoroethylene rod, and the transmission rod is inserted into the hole to be fixed.
Preferably, the driving motor is connected with the transmission rod through a universal coupling.
The processing method has the beneficial effects that the straight groove and the spring in the straight groove generate acting force on the oilstone strips, so that the oilstone strips are uniformly stressed in the honing process, and the processing precision of the inner wall of the steam jacket is improved; and use polytetrafluoroethylene as the main part of repairing and grinding the instrument, reduced the weight of repairing and grinding the instrument, change present lathe honing into simultaneously and hand driving motor and carry out the honing, use lightly, reduced the honing cost, improved work efficiency and maintenance quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall assembly structure provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an overall combined three-dimensional structure provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of an overall exploded perspective structure provided by an embodiment of the present invention;
FIG. 4 is an elevational, cross-sectional view of an embodiment of the present invention;
FIG. 5 is a top cross-sectional view provided by an embodiment of the present invention;
in the figure: 1-polytetrafluoroethylene rod, 1.1-hole, 2-straight groove, 2.1-round groove, 3-oilstone strip, 4-spring, 5-metal gasket, 5.1-through hole, 6-transmission rod, 7-driving motor and a-air envelope.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
In a specific embodiment, (as shown in fig. 1-5) provide a portable self-alignment steam jacket inner wall electric repairing and grinding tool, including polytetrafluoroethylene stick 1 circumference wall is evenly arranged and is provided with at least two straight grooves 2 which are identical with the size of the oilstone strips 3 required in honing process and just put in, thus enabling the oilstone strips 3 to move along the groove depth direction, when the polytetrafluoroethylene stick 1 outside diameter is less than 50mm, processing two straight grooves 2 can improve the strength of the polytetrafluoroethylene stick 1 to a great extent. Three straight grooves 2 which are uniformly arranged are arranged in the scheme. Specifically all install oilstone strip 3 in every straight flute 2, for making oilstone strip 3 add man-hour and gas envelope a inner wall fully contact and guarantee that the stress of the 3 whole surfaces of oilstone strip is even when honing, install the outside spring 4 of a plurality of root perpendicular to straight flutes 2 bottom efforts between oilstone strip 3 and straight flute 2 tank bottoms, specifically can make the unsteady setting of oilstone strip 3 along groove depth direction through spring 4, and then with grind inseparabler complete of downthehole wall laminating.
In addition, in order to improve the stability of the springs 4 for supporting the oilstone strips 3, at least two springs 4 are uniformly distributed and arranged in the straight groove 2. And a plurality of circular grooves 2.1 for fixing the bottom ends of the springs 4 are uniformly formed in the bottoms of the straight grooves 2, the circular grooves 2.1 are distributed in each straight groove 2 in an array mode, and the springs 4 are placed in the circular grooves 2.1.
In order to increase the contact area between the oilstone strips 3 and the grinding wall and improve the grinding efficiency and the stability of relative movement of the oilstone strips and the grinding wall, the straight grooves 2 are arranged into long grooves which are axially arranged along the polytetrafluoroethylene rod 1, a plurality of circular grooves 2.1 are uniformly formed in the bottoms of the grooves and along the length direction of the long grooves, and each circular groove 2.1 is internally provided with a spring 4 correspondingly. Equivalently, the length of the whole oilstone strip 3 is lengthened, and the swinging of the oilstones in the radial direction of the grinding holes is reduced.
In addition, because the oilstone strips 3 directly contact the polytetrafluoroethylene rods 1 during honing, the polytetrafluoroethylene rods 1 are abraded or the edges of the straight grooves 2 are crushed, long-time abrasion can lead the oilstone strips 3 to be attached to the straight grooves 2 and not tightly generate gaps, impact abnormal sound is generated during high-speed rotation of oilstones, and the honing track adversely affects the processing precision. Therefore, in the present case, inlay in straight flute 2 with the metal gasket 5 of straight flute 2 lateral wall and bottom laminating, make the oilstone strip 3 can get into metal gasket 5, avoid reducing wearing and tearing with polytetrafluoroethylene stick 1 direct contact. And for the spring to put into, offer on the metal shim 5 with the round slot 2.1 corresponding through hole 5.1 can facilitate the spring 4 to stretch out. In order to put the oilstone strips 3 into the metal gasket 5, the edges of one side of the metal gasket 5, which are put into the oilstone strips 3, are set to be filleted corners or corner structures.
A hole 1.1 with the depth not longer than the length of the polytetrafluoroethylene rod 1 is processed on the axis of one end of the polytetrafluoroethylene rod 1, and the transmission rod 6 is inserted into the hole 1.1 to be fixed so as to realize the rotation of the polytetrafluoroethylene rod 1. During the use, because it is limited to grind the hole position, lead to instrument and instrument installation limited, simultaneously, also inconvenient support, be connected through universal joint with driving motor 7 output shaft and transfer line 6 for this reason, and then compensate the mounted position through universal joint, improve performance.
When the tool is assembled, the spring 4 is placed into the circular groove 2.1 to be fixed, the length of the spring 4 needs to be longer than the depth of the circular groove 2.1, the metal gasket 5 is fixed in the straight groove 2 to be attached to the bottom of the side wall of the straight groove 2, a through hole 5.1 for extending the spring 4 is reserved, and the oilstone strip 3 is extruded into the straight groove 2 along the radial direction. When the grinding tool is used, the whole grinding tool is placed into the steam seal sleeve a, the spring 4 is extruded to generate outward acting force, so that the oilstone strips 3 have certain extrusion force on the inner wall of the steam seal sleeve a, the driving motor 7 is operated to drive the polytetrafluoroethylene rod 1 to drive the oilstones to move and simultaneously rotate in the steam seal sleeve a according to the specified track to form honing movement, and then the inner wall of the steam seal sleeve a is ground. In addition, according to the grinding size, the oilstone strips 3 with different specifications are selected for coarse grinding or fine grinding, and the gap and the inner wall finish degree after repair are ensured.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a portable from electronic instrument of researching of alignment vapour envelope inner wall, includes polytetrafluoroethylene stick (1), spring (4), oilstone strip (3), driving motor (7), its characterized in that:
at least two straight grooves (2) are uniformly arranged on the circumferential wall of the polytetrafluoroethylene rod (1), the oilstone strips (3) are arranged in each straight groove (2), the springs (4) are arranged between the oilstone strips (3) and the bottoms of the straight grooves (2), the oilstone strips (3) can be arranged in a floating mode along the depth direction of the grooves, and one end portions of the springs (4) are fixed to the bottoms of the straight grooves (2);
the output shaft of the driving motor (7) drives the polytetrafluoroethylene rod (1) to rotate.
2. A portable self-aligning inner wall electric dressing tool of steam envelopes as claimed in claim 1, characterized in that, said springs (4) are at least two and are uniformly arranged in said straight groove (2).
3. The portable electric repairing tool for self-alignment steam jacket inner wall according to claim 2, characterized in that the bottom of the straight groove (2) is provided with a circular groove (2.1) for fixing the spring (4).
4. A portable self-aligning steam jacket inner wall electric repairing tool according to claim 3, wherein said straight groove (2) is a long groove axially arranged along said teflon rod (1), a plurality of said circular grooves (2.1) are uniformly arranged on the bottom of the groove along the length direction of said long groove, and each said circular groove (2.1) is correspondingly provided with said spring (4).
5. The portable electric repairing and grinding tool for self-aligning steam jacket inner wall according to claim 3 or 4, characterized in that a metal gasket (5) which is attached to the side wall and the bottom of the straight groove (2) is embedded in the straight groove (2), and the metal gasket (5) is provided with a through hole (5.1) corresponding to the circular groove (2.1).
6. A portable self-aligning inner wall electric dressing tool of steam envelopes as claimed in claim 1, characterized in that the number of straight grooves (2) is three.
7. The portable electric repairing tool for self-alignment steam jacket inner wall according to claim 1, characterized in that the edge of the oilstone strip (3) is provided with a rounding structure or a chamfering structure.
8. The portable electric repairing tool for self-alignment steam jacket inner wall according to claim 1, characterized in that a hole (1.1) with a depth not longer than the length of the polytetrafluoroethylene rod (1) is formed on the axis of one end of the polytetrafluoroethylene rod (1), and the transmission rod (6) is inserted into the hole (1.1) for fixing.
9. The portable electric repairing tool for self-alignment steam jacket inner wall according to claim 8, wherein said driving motor (7) and said driving rod (6) are connected by a universal joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123200533.9U CN216504299U (en) | 2021-12-20 | 2021-12-20 | Portable electric repairing and grinding tool for self-aligning inner wall of steam envelope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123200533.9U CN216504299U (en) | 2021-12-20 | 2021-12-20 | Portable electric repairing and grinding tool for self-aligning inner wall of steam envelope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216504299U true CN216504299U (en) | 2022-05-13 |
Family
ID=81500403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123200533.9U Expired - Fee Related CN216504299U (en) | 2021-12-20 | 2021-12-20 | Portable electric repairing and grinding tool for self-aligning inner wall of steam envelope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216504299U (en) |
-
2021
- 2021-12-20 CN CN202123200533.9U patent/CN216504299U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |