CN210085501U - Hot top cover centering device of RH vacuum treatment furnace - Google Patents
Hot top cover centering device of RH vacuum treatment furnace Download PDFInfo
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- CN210085501U CN210085501U CN201920669947.XU CN201920669947U CN210085501U CN 210085501 U CN210085501 U CN 210085501U CN 201920669947 U CN201920669947 U CN 201920669947U CN 210085501 U CN210085501 U CN 210085501U
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- hot top
- top cap
- uide
- polished rod
- guide bar
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Abstract
The utility model provides a hot top cap centering device of RH vacuum treatment furnace, including centering support, two guide bars and two uide bushings, the uide bushing is one end confined cylinder, the guide bar is the shank of bolt of a polished rod tape head, open on polished rod upper portion has the oil filler point, oil filler point other end opening is in the polished rod lower extreme, two uide bushings pass through the centering support to be fixed on hot top cap, correspond two guide bars of position welding with two uide bushings of hot top cap on hot top cap structure platform, guide bar and uide bushing equipment back, the uide bushing goes up and down along the guide bar when hot top cap goes up and down. The utility model discloses can improve the centering effect, take place the skew when avoiding hot top cap to go up and down, extension hydraulic pressure synchronous motor change cycle reduces hot top cap adjustment number of times, guarantees the in-line of RH vacuum and production, saves spare part and maintenance cost.
Description
Technical Field
The utility model belongs to steelmaking mechanical equipment field especially relates to a hot top cap centering device of RH vacuum treatment furnace.
Background
The hot top cover is important equipment of the RH vacuum treatment furnace, and the hot top cover falls on the vacuum chamber during production, and is sealed by a sealing ring between the hot top cover and the vacuum chamber, so that the requirement of vacuum degree is ensured. Along with the abrasion of a synchronous motor gear in a hydraulic system for controlling the synchronous lifting of the hot top cover, the synchronous effect of the four hydraulic cylinders is poor, so that the hot top cover deviates in the descending process, the sealing between the hot top cover and a vacuum chamber cannot be pressed, the vacuum degree is reduced, the production requirement cannot be met, and the machine can only be stopped to lift the hot top cover to adjust the deviation.
The original hot top cover jacking guide device is two right-angled vertical plates arranged at the four-corner hydraulic cylinder of the hot top cover, and guides the hot top cover through two spherical surfaces on the hot top cover support. The adjustment is needed on average once every two weeks, each time is 3 hours, and the adjustment is performed 2 times in the shortest week, so that the production rhythm, the processing yield and the product quality are seriously influenced.
Disclosure of Invention
The utility model aims at providing a can avoid hot top cap skew, reduce hot top cap adjustment number of times, guarantee the RH vacuum, prolong the hot top cap centering device of RH vacuum treatment furnace of synchronous motor change cycle.
Therefore, the utility model discloses the technical solution who takes does:
the utility model provides a hot top cap centering device of RH vacuum treatment furnace, including hot top cap structure platform, add centering support, two guide bars and two uide bushings, the uide bushing is one end confined cylinder, the guide bar is the body of bolt of a polished rod tape head, it has a horizontally oil filler point to open on polished rod upper portion, the oil filler point other end is along polished rod axis opening in the polished rod lower extreme, fix two uide bushings respectively on hot top cap through centering support, simultaneously with two uide bushings of hot top cap correspondence position welding two guide bars on hot top cap structure platform, align two guide bars and two uide bushings and assemble together, keep the clearance between uide bushing and the guide bar to be 2.5 ~ 3.5mm, the uide bushing goes up and down along the guide bar when hot top cap goes up and down.
The utility model has the advantages that:
the utility model discloses because the uide bushing goes up and down along the guide bar when hot top cap goes up and down, the clearance between uide bushing and guide bar only has 2.5 ~ 3.5mm, can greatly improve the centering effect, even also can guarantee under the not good condition of hydraulic pressure synchronous motor synchronism that hot top cap does not squint, hot top cap can not take place the skew when going up and down. The oil injection hole is machined in the guide rod for periodic lubrication, so that ball head abrasion can be reduced, the replacement period of the hydraulic synchronous motor is prolonged, the guide sleeve and the guide column are guaranteed not to be blocked, the RH vacuum degree is guaranteed, the smooth production is guaranteed, the hot top cover can be adjusted for 26 times every year, and spare parts and maintenance cost are effectively saved.
Drawings
FIG. 1 is a schematic structural view of a hot top cover centering device of an RH vacuum processing furnace;
fig. 2 is a combined view of the guide rod and the guide sleeve.
In the figure: the device comprises an RH vacuum treatment furnace 1, a hot top cover 2, a structural platform 3, a centering support 4, a guide sleeve 5, a guide rod 6 and an oil filling hole 7.
Detailed Description
As can be seen from the attached figure 1, the hot top cover 2 is positioned above the RH vacuum processing furnace 1, and the middle lower part of the hot top cover 2 is provided with a structural platform 3. The utility model discloses hot top cap centering device of RH vacuum treatment furnace, including structural platform 3, centering support 4, two uide bushings 5 and two guide bars 6. The guide sleeve 5 is a cylinder with one closed end, and the guide rod 6 is a bolt body with a polished rod and a head. Fix two uide bushings 5 respectively on hot top cap 2 through centering support 4, correspond two guide bars 6 of position welding simultaneously with two uide bushings 5 of hot top cap 2 on structural platform 3, with two guide bars 6 and two uide bushings 5 centering alignment equipment together, keep the clearance between uide bushing 5 and the guide bar 6 to be 3mm, uide bushing 5 goes up and down along guide bar 6 when hot top cap 2 goes up and down. A horizontal oil filling hole 7 is formed in the upper portion of a polish rod of the guide rod 6, the other end of the oil filling hole 7 is opened at the lower end of the polish rod along the axis of the polish rod, lubricating oil injected from the oil filling hole 7 enters the guide sleeve 5 through an opening in the lower end of the polish rod, the lubricating effect can be directly increased, and friction between the guide sleeve 5 and the guide rod 6 is reduced.
Claims (1)
1. The utility model provides a hot top cap centering device of RH vacuum treatment furnace, including hot top cap structure platform, a serial communication port, add centering support, two guide bars and two uide bushings, the uide bushing is the cylinder of one end confined, the guide bar is the body of bolt of a polished rod tape head, open on polished rod upper portion has a horizontally oil filler point, the oil filler point other end is along polished rod axis opening in the polished rod lower extreme, fix two uide bushings respectively on hot top cap through centering support, simultaneously correspond two guide bars of position welding with two uide bushings of hot top cap on hot top cap structure platform, align two guide bars and two uide bushings and assemble together, keep the clearance between uide bushing and the guide bar to be 2.5 ~ 3.5mm, the uide bushing rises and falls along the guide bar when hot top cap goes up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920669947.XU CN210085501U (en) | 2019-05-12 | 2019-05-12 | Hot top cover centering device of RH vacuum treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920669947.XU CN210085501U (en) | 2019-05-12 | 2019-05-12 | Hot top cover centering device of RH vacuum treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210085501U true CN210085501U (en) | 2020-02-18 |
Family
ID=69477791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920669947.XU Active CN210085501U (en) | 2019-05-12 | 2019-05-12 | Hot top cover centering device of RH vacuum treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210085501U (en) |
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2019
- 2019-05-12 CN CN201920669947.XU patent/CN210085501U/en active Active
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