CN210879006U - Improved feeding mechanism of grinding and repairing device for sealing surface of valve seat of steam turbine valve - Google Patents
Improved feeding mechanism of grinding and repairing device for sealing surface of valve seat of steam turbine valve Download PDFInfo
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- CN210879006U CN210879006U CN201922071685.XU CN201922071685U CN210879006U CN 210879006 U CN210879006 U CN 210879006U CN 201922071685 U CN201922071685 U CN 201922071685U CN 210879006 U CN210879006 U CN 210879006U
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- screw sleeve
- handle
- grinding
- thrust ball
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Abstract
The utility model relates to a grind the restoration technical field, especially relate to the sealed face of steam turbine valve disk seat grinds prosthetic devices's improved generation feed mechanism. When the grinding outer sleeve needs to move, the grinding outer sleeve can move relative to the copper nut only by rotating the handle; the arrangement of the thrust ball bearing and the copper sleeve reduces the abrasion of the grinding outer sleeve; the durability of the grinding jacket is improved. Comprises a handle, a feed screw sleeve, a thrust ball bearing and a connecting flange; one end of the screw sleeve is a handle connecting end, and the handle is in threaded connection with the handle connecting end; the other end of the screw sleeve is provided with a shaft shoulder, a thrust ball bearing is arranged on the shaft shoulder, and a bearing seat is assembled outside the thrust ball bearing; one sides of the bearing seat and the pressure spring are tightly covered by a bearing seat pressure plate, and the other side of the bearing seat is connected with the connecting flange through a T-shaped key; a copper nut is arranged in one end head of the screw sleeve and is in interference fit connection with the inner wall of the screw sleeve, a copper sleeve is arranged in the other end head of the screw sleeve, and the copper sleeve is in interference fit with the inner wall of the screw sleeve.
Description
Technical Field
The invention relates to the technical field of grinding repair, in particular to an improved feeding mechanism of a grinding repair device for a valve seat sealing surface of a steam turbine valve.
Background
After a certain period of use, the valve seat sealing surface of the valve is exposed due to abrasion, oxidation and erosion, so that the valve seat sealing surface of the valve needs to be ground and repaired by using grinding and repairing equipment. The invention patent of grinding repair equipment for sealing surface of valve seat of steam turbine, application No. 201721175039.2 discloses grinding repair equipment for sealing surface of valve seat of steam turbine, wherein a feeding mechanism is involved and disclosed, the feeding mechanism comprises a feeding nut, a feeding screw sleeve, a fixing ring, a thrust ball bearing and a handle; the function of driving the grinding outer sleeve to slide along the axial direction of the grinding shaft is achieved; however, the feeding mechanism has the defects that the end part of the grinding outer sleeve is easy to abrade and the grinding outer sleeve is easy to generate meaningless radial rotation when moving axially.
Disclosure of Invention
The invention provides an improved feeding mechanism of a grinding and repairing device for a valve seat sealing surface of a steam turbine valve, aiming at the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme that the device comprises a handle, a feeding screw sleeve, a thrust ball bearing and a connecting flange.
One end of the screw sleeve is a handle connecting end, and the handle is in threaded connection with the handle connecting end; a shaft shoulder is arranged at the other end of the screw sleeve, a thrust ball bearing is mounted on the shaft shoulder, and a bearing seat is assembled outside the thrust ball bearing; and a pressure spring is arranged in the bearing seat and on one side of the thrust ball bearing, and the pressure spring is sleeved outside the screw sleeve.
One sides of the bearing seat and the pressure spring are tightly covered by the bearing seat pressure plate, and the other side of the bearing seat is connected with the connecting flange through a T-shaped key.
A copper nut is arranged in one end of the screw sleeve and connected with the inner wall of the screw sleeve in an interference fit mode, a copper sleeve is arranged in the other end of the screw sleeve, and the copper sleeve is in interference fit with the inner wall of the screw sleeve.
During the use, the screw sleeve is located and is ground the overcoat and sheathe in, copper nut and grinding overcoat threaded connection, T type key is used for preventing to grind the radial rotation of overcoat.
Further, the handle includes the handheld section of external screw thread linkage segment and flat, the handle link is seted up flutedly, and processing has the internal thread in the recess, through external screw thread linkage segment and interior screw-thread fit, the handle links to each other with the handle link is detachable.
Further, the thrust ball bearing is sealed in the bearing seat by a bearing end cover.
Further, the connecting flange is connected with the grinding power mechanism through screws or bolts.
Compared with the prior art, the invention has the beneficial effects.
When the grinding outer sleeve needs to move, the grinding outer sleeve can move relative to the copper nut only by rotating the handle; the arrangement of the thrust ball bearing and the copper sleeve reduces the abrasion of the grinding outer sleeve; the durability of the grinding jacket is improved. And the T-shaped key prevents the grinding sleeve from rotating in the axial feeding process.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
FIG. 1 is a schematic diagram of the present invention.
In the figure, 1 is a feed screw sleeve, 2 is a bearing seat pressure plate, 3 is a bearing seat, 4 is a T-shaped key, 5 is a copper sleeve, 6 is a copper nut, 7 is a pressure spring, 8 is a connecting flange, 9 is a handle, 10 is a thrust ball bearing, and 11 is a screw.
Detailed Description
As shown in fig. 1, the present invention comprises a handle 9, a feed screw housing 1, a thrust ball bearing 10, and a connecting flange 8; one end of the screw sleeve 1 is a handle connecting end, and the handle 9 is in threaded connection with the handle connecting end; a shaft shoulder is arranged at the other end of the screw sleeve 1, a thrust ball bearing 10 is mounted on the shaft shoulder, and a bearing seat is assembled outside the thrust ball bearing 10; a pressure spring 7 is arranged in the bearing seat and on one side of the thrust ball bearing 10, and the pressure spring 7 is sleeved outside the screw sleeve 1; one sides of the bearing seat and the pressure spring 7 are tightly covered by a bearing seat pressure plate, and the other side of the bearing seat is connected with the connecting flange through a T-shaped key 4; a copper nut 6 is arranged in one end head of the screw sleeve 1, the copper nut 6 is connected with the inner wall of the screw sleeve 1 in an interference fit manner, a copper sleeve is arranged in the other end head of the screw sleeve 1, and the copper sleeve is in interference fit with the inner wall of the screw sleeve 1; during the use, the screw sleeve is located and is ground the overcoat and sheathe in, copper nut and grinding overcoat threaded connection, T type key 4 is used for preventing to grind the radial rotation of overcoat.
Further, the handle includes the handheld section of external screw thread linkage segment and flat, the handle link is seted up flutedly, and processing has the internal thread in the recess, through external screw thread linkage segment and interior screw-thread fit, the handle links to each other with the handle link is detachable.
Further, the thrust ball bearing is sealed in the bearing seat by a bearing end cover.
Further, the connecting flange is connected with the grinding power mechanism through screws or bolts.
When the grinding outer sleeve needs to move, the grinding outer sleeve can move relative to the copper nut only by rotating the handle; the arrangement of the thrust ball bearing and the copper sleeve reduces the abrasion of the grinding outer sleeve; the durability of the grinding jacket is improved. And the T-shaped key prevents the grinding sleeve from rotating in the axial feeding process.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (4)
1. An improved feeding mechanism of a grinding and repairing device for a sealing surface of a valve seat of a steam turbine valve comprises a handle, a feeding screw sleeve, a thrust ball bearing and a connecting flange;
the novel multifunctional wrench is characterized in that one end of the screw sleeve is a handle connecting end, and the handle is in threaded connection with the handle connecting end; a shaft shoulder is arranged at the other end of the screw sleeve, a thrust ball bearing is mounted on the shaft shoulder, and a bearing seat is assembled outside the thrust ball bearing; a pressure spring is arranged in the bearing seat and on one side of the thrust ball bearing, and the pressure spring is sleeved outside the screw sleeve;
one sides of the bearing seat and the pressure spring are tightly covered by a bearing seat pressure plate, and the other side of the bearing seat is connected with the connecting flange through a T-shaped key;
a copper nut is arranged in one end head of the screw sleeve and is in interference fit connection with the inner wall of the screw sleeve, a copper sleeve is arranged in the other end head of the screw sleeve, and the copper sleeve is in interference fit with the inner wall of the screw sleeve;
during the use, the screw sleeve is located and is ground the overcoat and sheathe in, copper nut and grinding overcoat threaded connection, T type key is used for preventing to grind the radial rotation of overcoat.
2. The improved feeding mechanism of the grinding and repairing device for the sealing surface of the valve seat of the steam turbine valve according to claim 1, characterized in that: the handle includes the handheld section of external screw thread linkage segment and flat, the handle link is seted up flutedly, and processing has the internal thread in the recess, through external screw thread linkage segment and interior screw-thread fit, the handle links to each other with the handle link is detachable.
3. The improved feeding mechanism of the grinding and repairing device for the sealing surface of the valve seat of the steam turbine valve according to claim 1, characterized in that: the thrust ball bearing is tightly sealed in the bearing seat by a bearing end cover.
4. The improved feeding mechanism of the grinding and repairing device for the sealing surface of the valve seat of the steam turbine valve according to claim 1, characterized in that: the connecting flange is connected with the grinding power mechanism through screws or bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071685.XU CN210879006U (en) | 2019-11-27 | 2019-11-27 | Improved feeding mechanism of grinding and repairing device for sealing surface of valve seat of steam turbine valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071685.XU CN210879006U (en) | 2019-11-27 | 2019-11-27 | Improved feeding mechanism of grinding and repairing device for sealing surface of valve seat of steam turbine valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210879006U true CN210879006U (en) | 2020-06-30 |
Family
ID=71340907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922071685.XU Active CN210879006U (en) | 2019-11-27 | 2019-11-27 | Improved feeding mechanism of grinding and repairing device for sealing surface of valve seat of steam turbine valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210879006U (en) |
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2019
- 2019-11-27 CN CN201922071685.XU patent/CN210879006U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Jinghua Power Equipment Co.,Ltd. Assignor: SHENYANG DUOYUAN ELECTROMECHANICAL EQUIPMENT Co.,Ltd. Contract record no.: X2023210000081 Denomination of utility model: An Improved Feed Mechanism for Grinding and Repairing the Sealing Surface of Steam Turbine Valve Seat Granted publication date: 20200630 License type: Common License Record date: 20230904 |