CN200982936Y - Guiding device of Vickers elevating machine - Google Patents
Guiding device of Vickers elevating machine Download PDFInfo
- Publication number
- CN200982936Y CN200982936Y CN 200620162163 CN200620162163U CN200982936Y CN 200982936 Y CN200982936 Y CN 200982936Y CN 200620162163 CN200620162163 CN 200620162163 CN 200620162163 U CN200620162163 U CN 200620162163U CN 200982936 Y CN200982936 Y CN 200982936Y
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- CN
- China
- Prior art keywords
- bearing
- elevating
- leading screw
- vickers
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a Vickers elevating mechanism guide device, wherein an external cylindrical surface of an elevating leading screw 1 is processed with two parallel guide planes, a lower end face of a leading screw base 3 is fixed with two semi-annular bearing seats 4, every bearing seat 4 is arranged with a bearing rod 7, two bearings 6 are respectively arranged on the bearing rod 7 and external rings of the bearings 6 and the guide planes of the elevating leading screw 1 have contact connections. For relative motions between the guide planes of the elevating leading screw and the external rings of the bearings are rolling and capable of realizing a gapless dynamic combination, thereby achieving purposes of increasing guide precision and reducing wear.
Description
Technical field the utility model relates to a kind of guide piece that is used for Vickers test specimen elevating mechanism.
Background technology is present, and scleroscopic test specimen jacking gear all adopts trapezoidal screw screw mechanism, and the mode that the guiding of its leading screw also all uses flat key to add keyway realizes.Flat key add the guiding of keyway formula because must have certain clearance as its can relative motion assurance, so bearing accuracy is poor, be prone to the sample beat in the lifting process, so be difficult to satisfy the requirement of Vickers hardness test.The spigot surface that the while flat key adds the keyway formula is sliding friction, uses abrasion fast, and bearing accuracy can further deterioration after the abrasion.
Utility model content the purpose of this utility model is to provide a kind of guiding device for Vickers lifting mechanism, technical matters to be solved is: overcome the defective that the sliding contact between the guiding mechanism spigot surface in the past brings, realize the rolling contact between spigot surface, thereby improve the abrasion in guiding accuracy and the reduction use, satisfy the requirement of Vickers better.
The technical solution of the utility model is as follows:
The elevating screw that outside cylinder is worn two parallel guide surface places leading screw seat endoporus, is fixed with two semi-circular bearing seats in leading screw seat lower surface.Bearing rod, two bearings, bearing spacer all are installed on each bearing seat, and bearing outer ring contacts with the guide surface of elevating screw bar.
When elevating screw when in lead screw hole, moving up and down under the drive of lifting screw, two spigot surfaces of leading screw drive two groups totally four bearing outer rings roll, play the guide effect that prevents the leading screw beat.The existing friction of spigot surface and bearing outer ring mainly is rolling friction, can guarantee that its no gap cooperates by assembly technology, thereby improve guiding accuracy and reduce abrasion.
Good effect of the present utility model is: because the outer ring relative motion of spigot surface on the elevating screw and bearing is to roll, and can realize not having the gap movingly, thereby reach the purpose that improves guiding accuracy and reduce abrasion.
Description of drawings Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the lower surface synoptic diagram of Fig. 1.
Embodiment is shown in Fig. 1-2, and elevating screw 1 external cylindrical surface processes two parallel guide surface, and elevating screw 1 upper end is rotary with lifting screw 2, and the lower end places leading screw seat 3 endoporus.Be fixed with two semi-circular bearing seats 4 in leading screw seat 3 lower surfaces, 7, two bearings 6 of bearing rod all be installed on each bearing seat 4 be installed on the bearing rod 7, and separate by bearing spacer 5.The outer ring of bearing 6 contacts with the guide surface of elevating screw bar 1.
Use external force that the outer ring of bearing 6 is closely contacted during assembling and eliminate the gap, then bearing seat 4 is screwed on leading screw seat 3.
Like this, rotate lifting screw 2, when elevating screw 1 moved up and down in leading screw seat 3 holes, two spigot surfaces of elevating screw 1 drove two groups of totally four bearing 6 outer rings rollings, play guide effect.
Claims (3)
1, a kind of guiding device for Vickers lifting mechanism comprises the elevating screw 1 that is rotary with lifting screw 2, and the leading screw seat 3 that cooperates with elevating screw 1 is characterized in that: the external cylindrical surface of elevating screw 1 is processed with two parallel guide surface; Be fixed with two semi-circular bearing seats 4 in leading screw seat 3 lower surfaces, 7, two bearings 6 of bearing rod all be installed on each bearing seat 4 be installed in respectively on the bearing rod 7; The outer ring of bearing 6 is connected with the guide surface contact of elevating screw bar 1.
2, guiding device for Vickers lifting mechanism as claimed in claim 1 is characterized in that: two bearings 6 on each bearing seat 4 are separated by bearing spacer 5.
3, guiding device for Vickers lifting mechanism as claimed in claim 1 or 2 is characterized in that: bearing seat 4 by screw retention on leading screw seat 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162163 CN200982936Y (en) | 2006-12-14 | 2006-12-14 | Guiding device of Vickers elevating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620162163 CN200982936Y (en) | 2006-12-14 | 2006-12-14 | Guiding device of Vickers elevating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982936Y true CN200982936Y (en) | 2007-11-28 |
Family
ID=38910093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620162163 Expired - Fee Related CN200982936Y (en) | 2006-12-14 | 2006-12-14 | Guiding device of Vickers elevating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982936Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411823A (en) * | 2013-07-31 | 2013-11-27 | 济南科汇试验设备有限公司 | Lead screw guiding device |
-
2006
- 2006-12-14 CN CN 200620162163 patent/CN200982936Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411823A (en) * | 2013-07-31 | 2013-11-27 | 济南科汇试验设备有限公司 | Lead screw guiding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071128 Termination date: 20100114 |