CN203385614U - Screw rod guiding device - Google Patents
Screw rod guiding device Download PDFInfo
- Publication number
- CN203385614U CN203385614U CN201320463796.5U CN201320463796U CN203385614U CN 203385614 U CN203385614 U CN 203385614U CN 201320463796 U CN201320463796 U CN 201320463796U CN 203385614 U CN203385614 U CN 203385614U
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- CN
- China
- Prior art keywords
- screw rod
- bearing
- self
- guiding
- guiding device
- 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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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a screw rod guiding device used on a testing machine. The screw rod guiding device comprises an upper transverse beam and a screw rod, wherein the screw rod comprises a screw rod thread part and a positioning shaft part. The screw rod guiding device is characterized in that the upper transverse beam is provided with a guiding and positioning hole matched with the positioning shaft part, the positioning shaft part is arranged in the guiding and positioning hole, a bearing hole is formed in the upper end of the inner part of the guiding and positioning hole, the bearing hole is internally provided with a self-lubricating bearing, a bearing end cover is arranged at the upper end of the self-lubricating bearing, and the bearing end cover is fixedly connected with the upper transverse beam by a screw. The screw rod guiding device is simple in structure, and the self-lubricating bearing is arranged so as to ensure the accuracy of positioning and guiding the screw rod, therefore, the requirements of the coaxiality of a stressed axis of a test sample and a main engine axis in a testing process are met, and the friction force stressed by the upper transverse beam in a up-down moving process is reduced.
Description
Technical field
The utility model relates to a kind of leading screw guide piece, relates in particular to the leading screw guide piece used on a kind of testing machine.
Background technology
Testing machine, in a broad sense, a kind of exactly product or material before coming into operation, the instrument that its quality or performance are verified by designing requirement.Testing machine is very extensive in the application of every profession and trade, and at present, in testing machine, the leading screw of transmission and loading use adopts at entablature and arranges that the mode of angle sheave is led.This guide piece complex structure and positioning and guiding are inaccurate, are difficult to reach the right alignment requirement of sample stressed axis and main engine axis in process of the test.
Summary of the invention
In order to address the above problem, the utility model provides a kind of leading screw guide piece, and the accuracy that it can guarantee leading screw location, guiding meets the right alignment requirement of sample stressed axis and main engine axis in process of the test.
The utility model is achieved by the following technical solution: the leading screw guide piece, comprise entablature and leading screw, described leading screw comprises threads of lead screw part and locating shaft part, it is characterized in that, described entablature is provided with a guide-localization hole partly coordinated with locating shaft, locating shaft partly is arranged in the guide-localization hole, the inner upper end in described guide-localization hole arranges a dead eye, in described dead eye, self-oiling bearing is installed, the upper end of self-oiling bearing is provided with a bearing (ball) cover, and described bearing (ball) cover is fixedly connected with entablature by screw.
The beneficial effects of the utility model are: the utility model is simple in structure, the setting of self-oiling bearing, guaranteed the accuracy of leading screw location, guiding, thereby reach the right alignment requirement of sample stressed axis and main engine axis in process of the test, reduced entablature simultaneously and moved up and down friction force suffered in process.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model;
In figure: 1-entablature, 2-leading screw, 21-locating shaft part, 22-threads of lead screw part, 3-self-oiling bearing, 4-bearing (ball) cover, 5-screw.
Embodiment
As shown in Figure 1, the utility model leading screw guide piece comprises entablature 1 and leading screw 2, described leading screw 2 comprises locating shaft part 21 and threads of lead screw part 22, described entablature 1 is provided with the guide-localization hole coordinated with locating shaft part 21, locating shaft part 21 is arranged in the guide-localization hole, the inner upper end in described guide-localization hole arranges a dead eye, self-oiling bearing 3 is installed in described dead eye, the upper end of self-oiling bearing 3 is provided with bearing (ball) cover 4, and described bearing (ball) cover 4 is fixedly connected with entablature 1 by screw 5.
In the process that entablature partly moves up and down along locating shaft, the endoporus of self-oiling bearing contacts all the time with the excircle of locating shaft part, guaranteed that entablature moves along the leading screw axis all the time, met the right alignment requirement of sample stressed axis and main engine axis in process of the test.
Except the described technical characterictic of above-mentioned instructions, be the known technology of those skilled in the art.
Claims (1)
1. leading screw guide piece, comprise entablature (1) and leading screw (2), described leading screw (2) comprises locating shaft part (21) and threads of lead screw part (22), it is characterized in that: described entablature (1) is provided with a guide-localization hole coordinated with locating shaft part (21), locating shaft part (21) is arranged in the guide-localization hole, the inner upper end in described guide-localization hole arranges a dead eye, self-oiling bearing (3) is installed in described dead eye, the upper end of self-oiling bearing (3) is provided with a bearing (ball) cover (4), described bearing (ball) cover (4) is fixedly connected with entablature (1) by screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463796.5U CN203385614U (en) | 2013-07-31 | 2013-07-31 | Screw rod guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463796.5U CN203385614U (en) | 2013-07-31 | 2013-07-31 | Screw rod guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385614U true CN203385614U (en) | 2014-01-08 |
Family
ID=49874091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463796.5U Expired - Fee Related CN203385614U (en) | 2013-07-31 | 2013-07-31 | Screw rod guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203385614U (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 |
-
2013
- 2013-07-31 CN CN201320463796.5U patent/CN203385614U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20140731 |
|
| EXPY | Termination of patent right or utility model |