CN208041163U - A kind of rear end cover structure of heavy caliber recirculated water butterfly valve - Google Patents
A kind of rear end cover structure of heavy caliber recirculated water butterfly valve Download PDFInfo
- Publication number
- CN208041163U CN208041163U CN201820363430.3U CN201820363430U CN208041163U CN 208041163 U CN208041163 U CN 208041163U CN 201820363430 U CN201820363430 U CN 201820363430U CN 208041163 U CN208041163 U CN 208041163U
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- pad
- valve
- rear end
- rolling bearing
- valve shaft
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Abstract
A kind of rear end cover structure of heavy caliber recirculated water butterfly valve, including the rear end cap being fixedly connected with the valve body, antifriction component is set between rear end cap and valve shaft, antifriction component includes adjusting pad, rolling bearing and pad, adjusting pad and rolling bearing are mounted in the groove of rear end cap, rolling bearing is placed on adjusting pad, pad is placed between rolling bearing and valve shaft end, and pad is arc surface with valve shaft contact surface.The utility model has the beneficial effects that pad is in close contact with rolling bearing, rolling bearing rotates together with the rotation of valve shaft, and friction herein is rolling friction, reduces the torque of valve；Valve shaft is arc surface with friction pad contact surface, and contact area is small, and valve opening and closing torque is small, low to the rigidity requirement of valve rod, has saved production cost, and avoids the generation of " killing " phenomenon；After pad is worn, the adjustment up and down of valve shaft may be implemented in the thickness by increasing and decreasing adjusting pad, ensures the sealing performance of valve.
Description
Technical field
The utility model is related to a kind of recirculated water butterfly valves, the more particularly to rear end cover structure of heavy caliber recirculated water butterfly valve.
Background technology
In the prior art, the rear end cap of heavy caliber recirculated water butterfly valve is only provided with pad, when valve shaft rotates, valve shaft end
Face and pad end face direct friction, with the frequent keying of valve, pad end wear is serious, leads to valve shaft and butterfly plate meeting
Tenesmus so that the sealing circle center of valve is detached from valve seat center, increases the leakage rate of valve, just needs replacing pad at this time,
It just can guarantee the sealing performance of valve, this rear end cover structure, pad abrasion is very fast, replaces frequently, the cost of overhaul is higher.
Invention content
To overcome the drawbacks described above of existing butterfly valve rear end cap, a kind of heavy caliber with long service life of the utility model offer to follow
The rear end cover structure of ring water butterfly valve.
The utility model solves its technical problem the technical solution adopted is that a kind of rear end cap of heavy caliber recirculated water butterfly valve
Structure, including the rear end cap that is fixedly connected with the valve body, are arranged antifriction component between rear end cap and valve shaft, antifriction component includes adjustment
Pad, rolling bearing and pad, adjusting pad and rolling bearing are mounted in the groove of rear end cap, and the axis of rolling is placed on adjusting pad
It holds, pad is placed between rolling bearing and valve shaft end, pad is arc surface with valve shaft contact surface.
The utility model has the beneficial effects that pad and rolling bearing are in close contact, rolling bearing with valve shaft rotation
It rotates together, friction herein is rolling friction, reduces the torque of valve；Valve shaft is arc surface with friction pad contact surface,
Contact area is small, and valve opening and closing torque is small, low to the rigidity requirement of valve rod, has saved production cost, and it is existing to avoid " killing "
The generation of elephant；After pad is worn, the adjustment up and down of valve shaft may be implemented in the thickness by increasing and decreasing adjusting pad, ensures valve
Sealing performance.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of embodiment
In figure：1. valve shaft；2. valve body；3. rear end cap；4. pad；5. rolling bearing；6. adjusting pad；7. groove.
Specific implementation mode
As shown in Figure 1, a kind of rear end cover structure of heavy caliber recirculated water butterfly valve, includes the rear end being fixedly connected with valve body 2
Antifriction component is arranged in lid 3 between rear end cap 3 and valve shaft 1, antifriction component includes adjusting pad 6, rolling bearing 5 and pad 4,
Adjusting pad 6 and rolling bearing 5 are mounted in the groove 7 of rear end cap 3, and rolling bearing 5, rolling bearing 5 and valve are placed on adjusting pad 6
Pad 4 is placed between 1 end of axis, pad 4 is that arc surface passes through increase and decrease after pad 4 is worn with 1 contact surface of valve shaft
The adjustment up and down of valve shaft 1 may be implemented in the thickness of adjusting pad 6, ensures the sealing performance of valve.
Claims (1)
1. a kind of rear end cover structure of heavy caliber recirculated water butterfly valve, including the rear end cap that is fixedly connected with the valve body, the rear end cap
Antifriction component is set between valve shaft, it is characterised in that：The antifriction component includes adjusting pad, rolling bearing and pad,
The adjusting pad and rolling bearing are mounted in the groove of the rear end cap, and rolling bearing, the axis of rolling are placed on the adjusting pad
It holds and places pad between valve shaft end, the pad is arc surface with valve shaft contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363430.3U CN208041163U (en) | 2018-03-17 | 2018-03-17 | A kind of rear end cover structure of heavy caliber recirculated water butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820363430.3U CN208041163U (en) | 2018-03-17 | 2018-03-17 | A kind of rear end cover structure of heavy caliber recirculated water butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041163U true CN208041163U (en) | 2018-11-02 |
Family
ID=63948504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820363430.3U Active CN208041163U (en) | 2018-03-17 | 2018-03-17 | A kind of rear end cover structure of heavy caliber recirculated water butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208041163U (en) |
-
2018
- 2018-03-17 CN CN201820363430.3U patent/CN208041163U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230609 Address after: No. 68, xilide Road, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee after: Jiangsu Shentong Nuclear Power Equipment Co.,Ltd. Address before: No. 88, Xiexing Street, Nanyang Town, Qidong City, Nantong City, Jiangsu Province, 226232 Patentee before: JIANGSU SHENTONG VALVE Co.,Ltd. |