CN210477883U - Heavy numerical control screw press main shaft and inner body fastening device - Google Patents
Heavy numerical control screw press main shaft and inner body fastening device Download PDFInfo
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- CN210477883U CN210477883U CN201920899632.4U CN201920899632U CN210477883U CN 210477883 U CN210477883 U CN 210477883U CN 201920899632 U CN201920899632 U CN 201920899632U CN 210477883 U CN210477883 U CN 210477883U
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- main shaft
- numerical control
- endosome
- rises
- control screw
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Abstract
The utility model provides a heavy numerical control screw press main shaft and endosome fastener, has the main shaft of external screw thread including the middle part, the middle part has the internal thread, and constitute the endosome of adjusting the screw thread pair with main shaft external screw thread fit connection, the subtend parallel key of installation between main shaft and endosome is located at the middle part, the location that is located between main shaft and the endosome at both ends rises the lantern ring, install the tight bolt that rises on the ring that rises in the location, the interior sealing washer of the inboard installation in the ring that rises in the location, the outer sealing washer of the inboard outside installation in the ring that rises in the location, install the thickening formula split nut on the main shaft next. The utility model discloses heavy numerical control screw press main shaft and endosome fastener are connected reliably, and are fixed firm, and equipment long service life can easily adjust. The double-stage balance type heavy numerical control screw press can be widely applied to heavy numerical control screw presses, and is particularly applied to 125000kN screw rod slide block two-stage balance type heavy numerical control screw presses.
Description
Technical Field
The invention relates to a fastening device for a main shaft and an inner body of a heavy numerical control screw press, which can be widely applied to the heavy numerical control screw press, in particular to a 125000kN screw rod slide block two-stage balance type heavy numerical control screw press.
Background
The existing fastening mode of the main shaft and the inner body is only to use a common split nut to fasten. However, when the split nut is actually used, the split nut is easy to loosen, the gap between the inner body and the main shaft is quickly abraded, the single flat key is easy to roll, and the service life of the device is short.
Disclosure of Invention
The invention aims to provide a heavy numerical control screw press main shaft and inner body fastening device which is reliable in connection, firm in fixation, long in service life of equipment and easy to adjust.
In order to achieve the purpose, the heavy numerical control screw press main shaft and inner body fastening device comprises a main shaft with an external thread in the middle, an inner body with an internal thread in the middle and matched and connected with the external thread of the main shaft to form an adjusting thread pair, a facing flat key arranged between the main shaft and the inner body in the middle, a positioning expansion sleeve ring arranged between the main shaft and the inner body at two ends, a tensioning bolt arranged on the positioning expansion sleeve ring, an inner sealing ring arranged on the inner side of the inner end of the positioning expansion sleeve ring, an outer sealing ring arranged on the outer side of the inner end of the positioning expansion sleeve ring, and a thickened split nut arranged on the main shaft and abutted against the end face of.
The invention relates to a heavy numerical control screw press main shaft and inner body fastening device, wherein an inner sealing ring and an outer sealing ring form a combined sealing ring.
The invention relates to a heavy numerical control screw press main shaft and inner body fastening device, which has the working principle that: the main shaft and the inner body are fastened by adopting a multiple fastening mode, namely, the thickened split nut is fastened, and the thickened split nut is more reliable in connection than the prior art due to the adoption of a thickened structure; secondly, the intermediate adjusting thread pair is fastened, and the tightness and stability of the workpiece are further improved by the tight adjusting thread pair; thirdly, the positioning expansion sleeve ring is fastened with the expansion bolt in a structural mode, so that the back fastening force of the bolt is increased, the inner body and the main shaft are positioned relatively, and the two workpieces can be locked; fourthly, the opposite flat keys are connected and fastened, cross distribution is adopted, so that the main shaft and the inner body form spline type positioning, huge acting force generated when the workpiece moves can be dispersed, the workpiece is stabilized, the workpiece is not easy to damage, and the opposite flat keys are additionally matched with each other on the outer surface of the main shaft and the inner surface of the inner body. Therefore, the main shaft and the inner body are reliably connected, the fixation is firm and the service life of the equipment is long due to the multiple fastening structures.
The invention relates to a heavy numerical control screw press main shaft and inner body fastening device.A thickened split nut has the function of clamping two ends of an inner body on the outer side.
The invention relates to a fastening device for a main shaft and an inner body of a heavy numerical control screw press, which considers that the inner body and the main shaft need to be moved left and right, and the inner body and the main shaft are tightly held and cannot be adjusted due to corrosion after being used for a period of time. Therefore, the combined sealing ring is added, and after the oil is injected from the oil injection hole, the lubricating oil can be stored in the device for a long time, so that the whole mechanism can be normally stable and not loosened, and can be easily adjusted when in adjustment.
In conclusion, the fastening device for the main shaft and the inner body of the heavy numerical control screw press is reliable in connection, firm in fixation, long in service life and easy to adjust.
Drawings
The invention will be further described with reference to the accompanying drawings and examples thereof.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view a-a in fig. 1.
Detailed Description
In fig. 1 and 2, the heavy-duty numerical control screw press main shaft and inner body fastening device comprises a main shaft 1 with an external thread in the middle, an inner body 2 with an internal thread in the middle and matched and connected with the external thread of the main shaft to form an adjusting thread pair a, an opposite flat key 3 arranged between the main shaft and the inner body in the middle, a positioning expansion sleeve ring 4 arranged between the main shaft and the inner body at two ends, a tension bolt 5 arranged on the positioning expansion sleeve ring, an inner sealing ring 6 arranged on the inner side of the inner end of the positioning expansion sleeve ring, an outer sealing ring 7 arranged on the outer side of the inner end of the positioning expansion sleeve ring, and a thickened split nut 8 arranged on the main shaft and abutted against the end surface of the.
In addition, in the figure, the oil hole b is used for adjusting the length section c of the thread pair.
It should be understood that the above-described embodiments are merely exemplary of the present invention, and that various changes and modifications in the form, construction, features and spirit of the invention described in the claims should be included in the scope of the invention.
Claims (1)
1. The utility model provides a heavy numerical control screw press main shaft and endosome fastener, its characterized in that, including the main shaft that the middle part has the external screw thread, the middle part has the internal thread, and with the main shaft external screw thread cooperation be connected constitute the endosome of adjusting the screw thread pair, the subtend parallel key of installation between main shaft and endosome is located at the middle part, the location that is located between main shaft and the endosome at both ends rises the lantern ring, install the tight bolt that rises on the location rises the lantern ring, the interior sealing washer of location inboard installation of the lantern ring that rises, the outer sealing washer of location lantern ring inboard installation, close to the thickening formula split nut of endosome terminal surface installation on the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920899632.4U CN210477883U (en) | 2019-06-15 | 2019-06-15 | Heavy numerical control screw press main shaft and inner body fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920899632.4U CN210477883U (en) | 2019-06-15 | 2019-06-15 | Heavy numerical control screw press main shaft and inner body fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210477883U true CN210477883U (en) | 2020-05-08 |
Family
ID=70529334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920899632.4U Active CN210477883U (en) | 2019-06-15 | 2019-06-15 | Heavy numerical control screw press main shaft and inner body fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210477883U (en) |
-
2019
- 2019-06-15 CN CN201920899632.4U patent/CN210477883U/en active Active
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| GR01 | Patent grant |