CN112388280A - Positioning key installation device and positioning key installation method - Google Patents
Positioning key installation device and positioning key installation method Download PDFInfo
- Publication number
- CN112388280A CN112388280A CN201910759418.3A CN201910759418A CN112388280A CN 112388280 A CN112388280 A CN 112388280A CN 201910759418 A CN201910759418 A CN 201910759418A CN 112388280 A CN112388280 A CN 112388280A
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- China
- Prior art keywords
- navigation key
- rivet head
- impact
- positioning key
- key
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention provides a positioning key installation device and a positioning key installation method, which are used for installing a positioning key into an installation groove of a steam turbine rotor, and comprise the following steps: the pneumatic tool comprises a pneumatic tool and an impact piece, wherein one end of the impact piece is connected with the pneumatic tool, the other end of the impact piece is provided with a bent impact rivet head, and the end part of the impact rivet head is positioned on the outer side of the peripheral surface of the impact piece. The punching rivet head is small in size and flexible to use, power can be transmitted in a bending mode due to the fact that the punching rivet head is of the bent structure, the positioning key can be conveniently installed in the installation groove, and installation efficiency is improved.
Description
Technical Field
The invention relates to a tool for installing a turbine rotor blade, in particular to a positioning key installation device and a positioning key installation method.
Background
After the low-pressure rotor fir tree-shaped blade root blade of the steam turbine is assembled in a rotor wheel groove, positioning keys are required to be arranged on two sides of the bottom of the blade root to play a radial jacking role. The adjacent stage blades are small in opening gear and long in blade body, the positioning keys belong to interference assembly, so that the operation space of an assembly worker is limited, the positioning keys are generally installed in a manual striking mode by adopting a special lengthening tool at present, hundreds of positioning keys of one low-pressure rotor need to be installed, and the assembly efficiency is low.
Therefore, a method and tool for quickly installing the position key is needed.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a positioning key installation device and a positioning key installation method, which are used for solving the problem that manual installation in the prior art is time-consuming and labor-consuming.
To achieve the above and other related objects, the present invention provides a navigation key mounting apparatus for mounting a navigation key in a mounting groove of a steam turbine rotor, comprising: a pneumatic tool is provided with a pneumatic power tool,
the pneumatic tool comprises an impact piece, one end of the impact piece is connected with the pneumatic tool, the other end of the impact piece is provided with a bent impact rivet head, and the end part of the impact rivet head is located on the outer side of the outer peripheral surface of the impact piece.
Preferably, the impact piece is axially divided into three sections, the first section is connected with the pneumatic tool, the middle section is cylindrical, and the third section is the rivet punching head.
Preferably, the end of the punch rivet head is a conical round head.
Preferably, the piercing die has a relief recess in the bending direction thereof.
Preferably, the punch rivet head is formed by bending the impact piece to one side, and the bending angle is an acute angle.
Preferably, the outer side surface of the bending part of the punching rivet head is an arc surface.
The invention also provides a positioning key installation method, which adopts the positioning key installation device to install the positioning key, and the installation process comprises the following steps: the notch department of the mounting groove on the steam turbine rotor is placed with the navigation key, aligns the alignment portion on the navigation key with the tip of dashing the die, starts pneumatic tool, assembles the navigation key in the mounting groove.
Preferably, the alignment part on the positioning key is a positioning hole, and the end part of the punching rivet head extends into the positioning hole.
Preferably, the installation groove is cleaned before the positioning key is placed at the notch of the installation groove.
As described above, the positioning key mounting device and the positioning key mounting method of the present invention have the following advantageous effects: the positioning key mounting device is small in size and flexible to use, the punching rivet head is of a bent structure, power can be transmitted in a bending mode, the positioning key is convenient to mount in the mounting groove, and mounting efficiency is improved.
Drawings
Fig. 1 is a schematic view of the navigation key mounting apparatus of the present invention.
Fig. 2 shows a schematic view of an impact member of the present invention.
FIG. 3 is a schematic view showing a state of installing the navigation key using the navigation key installing apparatus according to the present invention.
Fig. 4 is an enlarged sectional view taken at a in fig. 3.
Description of the element reference numerals
1 impact member
2 pneumatic tool
3 positioning key
4 mounting groove
11 first stage
12 middle section
13 outer side surface of bent part of punching rivet head
14 punching rivet head
15 yielding groove
31 positioning hole
100 blade
200 steam turbine rotor
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 4. It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a navigation key mounting device, as shown in fig. 4, for mounting a navigation key 3 into a mounting groove 4 of a turbine rotor, comprising: the pneumatic tool 2 is provided with a pneumatic tool,
the pneumatic tool comprises an impact piece 1, wherein one end of the impact piece 1 is connected with the pneumatic tool 2, the other end of the impact piece 1 is provided with a bent punching rivet head 14, and the end part of the punching rivet head 14 is positioned on the outer side of the outer peripheral surface of the impact piece.
According to the invention, the pneumatic tool 2 is used as a power source, the bent punching rivet head 14 is used as a punching rivet end, as shown in fig. 3 and fig. 4, the impact force generated by the pneumatic tool 2 is transmitted to the positioning key 3 from the end part of the punching rivet head 14, and the positioning key 3 is punched into the mounting groove 4. The end of the piercing-riveting head 14 protrudes from the outer peripheral surface of the impact member 1, and it is possible to ensure that the impact member 1 does not interfere with the blade root of the steam turbine rotor 200 or the blade 100 during piercing-riveting, thereby improving the installation efficiency.
For the convenience of connection with the pneumatic tool 2, as shown in fig. 1 and 2, the impact member 1 of the present embodiment is divided into three sections in the axial direction, the first section 11 is cylindrical and connected with the pneumatic tool 2, the middle section 12 is cylindrical, and the third section is the piercing and riveting head 14. The radius of the middle section 12 is larger than that of the first section 11, and the distance from the end of the punch 14 to the axis of the impact piece is larger than the radius of the middle section 12, and the end of the punch 14 protrudes outside the outer peripheral surface of the impact piece. In this embodiment, the impact member 1 is an integrated structure, and has high rigidity, thereby ensuring that the impact force is transmitted to the positioning key.
In order to facilitate the impact of the impact piece 1 on the positioning key 3, the end of the rivet punching head 14 of the present embodiment is a conical round head, and a positioning hole 31 can be formed in the end surface of the positioning key 3, as shown in fig. 4, during installation, the conical round head can be inserted into the positioning hole 31, so that positioning impact is facilitated.
In order to match the blade root structure of the steam turbine blade 100 for the purpose of facilitating the installation of the setback key, the clinch head 14 of the present embodiment forms a relief groove 15 in the direction of bending thereof, as shown in fig. 2 and 3. In the present embodiment, the rivet punch 14 is bent toward the axial line side of the impact member 1 and forms an arc-shaped recess, i.e., the above-mentioned relief recess 15, so that when the positioning key 3 is impacted, the relief recess 15 can avoid the impact stroke from interfering with the blade root of the turbine blade 100, thereby ensuring the rapid rivet punching.
Due to the influence of the space between the adjacent stages of blades 100 and the length of the pneumatic tool 2, for the sake of assembly convenience, in this embodiment, the rivet head 14 is formed by bending the impact member 1 to one side, and the bending angle α is an acute angle. In order to avoid interference between the piercing rivet head 14 and other parts, the outer side surface 13 of the bending part of the piercing rivet head is a cambered surface in this embodiment. As shown in fig. 2, the bending angle α in this embodiment means: in the axial section of the impact piece 1, the included angle between the end arc tangent direction of the rivet punching head 14 and the axis of the impact piece 1. Preferably, the bending angle α is between 0 ° and 90 °, and most preferably the bending angle α is 45 °.
The invention also provides a positioning key installation method, which adopts the positioning key installation device to install the positioning key 3, and the installation process comprises the following steps: referring to fig. 3, the navigation key 3 is placed at the notch of the installation groove 4 of the steam turbine rotor 200, the end of the clincher head 14 is aligned with the alignment portion of the navigation key 3, and the pneumatic tool 2 is actuated to fit the navigation key 3 into the installation groove. The alignment part on the positioning key 3 in this embodiment is a positioning hole 31, and the end of the rivet punching head 14 extends into the positioning hole 31.
Before installing the navigation key 3, need make navigation key 3 earlier, treat that whole circle blade 100 is whole to be assembled the back, it cleans mounting groove 4 earlier, is equipped with the interference size of navigation key 3 according to the size of mounting groove 4. After the positioning key 3 is manufactured, the positioning key 3 is placed at the notch of the mounting groove 4 on the steam turbine rotor 200, the end part of the riveting punch 14 is aligned to the positioning hole 31 on the positioning key 3, the pneumatic tool 2 is started, and the positioning key 3 is assembled in the mounting groove 4.
In summary, the positioning key installation device and the positioning key installation method of the present invention have the following beneficial effects: the positioning key mounting device is small in size and flexible to use, the punching rivet head is of a bent structure, power can be transmitted in a bending mode, the positioning key is convenient to mount in the mounting groove, and mounting efficiency is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a navigation key installation device for in installing the navigation key into the mounting groove of steam turbine rotor, its characterized in that includes:
a pneumatic tool is provided with a pneumatic power tool,
the pneumatic tool comprises an impact piece, one end of the impact piece is connected with the pneumatic tool, the other end of the impact piece is provided with a bent impact rivet head, and the end part of the impact rivet head is located on the outer side of the outer peripheral surface of the impact piece.
2. The navigation key mounting apparatus of claim 1, wherein: the impact piece is axially divided into three sections, the first section is connected with the pneumatic tool, the middle section is cylindrical, and the third section is the rivet punching head.
3. The navigation key mounting apparatus of claim 1, wherein: the end part of the punching rivet head is a conical round head.
4. The navigation key mounting apparatus of claim 1, wherein: the punch rivet head forms a yielding groove in the bending direction of the punch rivet head.
5. The navigation key mounting apparatus of claim 1, wherein: the punching rivet head is formed by bending the impact piece to one side, and the bending angle is an acute angle.
6. The navigation key mounting apparatus of claim 5, wherein: the outer side surface of the bending part of the punching rivet head is a cambered surface.
7. A positioning key installation method is characterized in that: the installation of the navigation key using the navigation key installation apparatus as claimed in any one of claims 1 to 6, the installation process comprising: the notch department of the mounting groove on the steam turbine rotor is placed with the navigation key, aligns the alignment portion on the navigation key with the tip of dashing the die, starts pneumatic tool, assembles the navigation key in the mounting groove.
8. The navigation key mounting method of claim 7, wherein: the aligning part on the positioning key is a positioning hole, and the end part of the punching rivet head extends into the positioning hole.
9. The navigation key mounting method of claim 7, wherein: and cleaning the mounting groove before the positioning key is placed at the notch of the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759418.3A CN112388280A (en) | 2019-08-16 | 2019-08-16 | Positioning key installation device and positioning key installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910759418.3A CN112388280A (en) | 2019-08-16 | 2019-08-16 | Positioning key installation device and positioning key installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112388280A true CN112388280A (en) | 2021-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910759418.3A Pending CN112388280A (en) | 2019-08-16 | 2019-08-16 | Positioning key installation device and positioning key installation method |
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| CN (1) | CN112388280A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530606A1 (en) * | 1982-07-26 | 1984-01-27 | Du Pin Cellulose | Tool for extracting wedges and adapted wedges. |
| US9339921B2 (en) * | 2013-11-22 | 2016-05-17 | Ford Global Technologies, Llc | Driveshaft removal tool with angled tip |
| CN105643243A (en) * | 2014-11-24 | 2016-06-08 | 博尔霍夫.奥塔陆股份有限公司 | System and method for crimping a fastening component on a support |
| CN206083743U (en) * | 2016-09-28 | 2017-04-12 | 成都飞机工业（集团）有限责任公司 | Be used for small -size aircraft inlet inner skin riveted riveting gun riveting set |
| CN108568775A (en) * | 2018-05-25 | 2018-09-25 | 宁夏共享模具有限公司 | A kind of steam turbine J-type gland sealing gear assembly tool and method |
| CN109707462A (en) * | 2018-12-28 | 2019-05-03 | 东方电气集团东方汽轮机有限公司 | A kind of full rotary speed steam turbine 1450mm titanium alloy final blades |
| CN208929124U (en) * | 2018-10-17 | 2019-06-04 | 江西洪都航空工业集团有限责任公司 | A kind of curved riveting card of tack |
-
2019
- 2019-08-16 CN CN201910759418.3A patent/CN112388280A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2530606A1 (en) * | 1982-07-26 | 1984-01-27 | Du Pin Cellulose | Tool for extracting wedges and adapted wedges. |
| US9339921B2 (en) * | 2013-11-22 | 2016-05-17 | Ford Global Technologies, Llc | Driveshaft removal tool with angled tip |
| CN105643243A (en) * | 2014-11-24 | 2016-06-08 | 博尔霍夫.奥塔陆股份有限公司 | System and method for crimping a fastening component on a support |
| CN206083743U (en) * | 2016-09-28 | 2017-04-12 | 成都飞机工业（集团）有限责任公司 | Be used for small -size aircraft inlet inner skin riveted riveting gun riveting set |
| CN108568775A (en) * | 2018-05-25 | 2018-09-25 | 宁夏共享模具有限公司 | A kind of steam turbine J-type gland sealing gear assembly tool and method |
| CN208929124U (en) * | 2018-10-17 | 2019-06-04 | 江西洪都航空工业集团有限责任公司 | A kind of curved riveting card of tack |
| CN109707462A (en) * | 2018-12-28 | 2019-05-03 | 东方电气集团东方汽轮机有限公司 | A kind of full rotary speed steam turbine 1450mm titanium alloy final blades |
Non-Patent Citations (1)
| Title |
|---|
| （苏）谢尔盖耶夫М.А: "《钳工和装配工作劳动生产率的提高》", 31 October 1964, 中国工业出版社 * |
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Application publication date: 20210223 |
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| RJ01 | Rejection of invention patent application after publication |