CN203856824U - Combined type pin shaft - Google Patents
Combined type pin shaft Download PDFInfo
- Publication number
- CN203856824U CN203856824U CN201420198614.0U CN201420198614U CN203856824U CN 203856824 U CN203856824 U CN 203856824U CN 201420198614 U CN201420198614 U CN 201420198614U CN 203856824 U CN203856824 U CN 203856824U
- Authority
- CN
- China
- Prior art keywords
- shaft
- outer shaft
- pin shaft
- conical surface
- nut
- 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.)
- Withdrawn - After Issue
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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses a combined type pin shaft. The pin shaft comprises an outer shaft, wherein a positioning step is arranged on the outer surface of the outer shaft, the outer shaft is in axial match with an inner shaft through a conical surface A, a groove with the width of 2-4 mm is formed longitudinally in the outer shaft, a pull rod is inserted in the inner shaft with the head part located at the larger end of the conical surface of the inner shaft, the other end of the pull rod is screwed with a nut 8, the left end surface of the nut clings tightly to the end face of the smaller end of the conical surface of the outer shaft, when the nut is axially and tightly pulled, the outer shaft and the inner shaft can slide relatively along the matching conical surface, so that the outer shaft is expanded, and the outer circle of the outer shaft is expanded, the requirement on the match precision between the outer circle of the pin shaft and a fan-shaped section framework as well as a connecting rod bearing is met, and the function of rapid and accurate match in the radial direction and the axial direction is realized. When the pin shaft is detached, the pull rod is loosened, and the inner shaft is tapped, so that the inner shaft can be pushed out along the conical surface, the outer diameter of the outer shaft is reduced because the expansion force of the inner shaft is reduced or disappears, a match clearance between the outer shaft and the a fan-shaped section framework as well as a connecting rod bearing is enlarged, the detachment resistance of the pin shaft is reduced, and the pin shaft is detached conveniently; the maintenance intensity can be reduced by the combined type pin shaft, the mounting and dismounting efficiencies of the pin shaft are improved, and the service life of the pin shaft is prolonged.
Description
Technical field
The utility model relates to metallurgy industry continuous casting technology field, also may be used on other mechanized equipment field, particularly a kind of a kind of combined type bearing pin that solves continuous casting segment bearing pin installation and removal difficulty and research and develop.
Background technique
In the fan-shaped section structure that adopts pitman pin mode to clamp, equipment is through operation after a while, and dismounting hinge pin is very difficult, the failure mode more user adopts oxygen rifle to blow and cut is processed, keep in repair long in time limitly, damage of facilities degree is large, is unfavorable for the maintenance and repair of caster.Cause the principal element of dismounting hinge pin difficulty to have two, on the one hand because being subject to high-temperature steam and protecting slag to cause some corrosion phenomenas, these rusty stains and other dust gather obstruction bearing pin and extract.Be the existence that fan-shaped section fastening device gives the downforce of clamping force or upper frame deadweight generation on the other hand, make bearing pin have pulling force in the dismounting stage, increase the surface friction drag that bearing pin is extracted.
Therefore exploitation can realize the cooperation requirement of quick mounting location, and bearing pin that again can quick-detachment, just seems very necessary.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of combined type bearing pin, can realize the cooperation requirement of quick mounting location, bearing pin that again can quick-detachment, reduce repair density, promote bearing pin installation or removal efficiency, extend bearing pin working life.
In order to achieve the above object, know-why of the present utility model is achieved in that
A kind of combined type bearing pin, comprise outer shaft 7, outer shaft 7 outer surfaces are provided with positioning step 10,6, outer shaft 7 and interior axle pass through conical surface A radial fit, outer shaft 7 longitudinally has the groove 9 of wide 2-4mm, pull bar 5 be inserted in interior axle 6 and head at the large end of the conical surface place of interior axle 6, pull bar 5 the other ends and nut 8 screw, the conical surface small end end face of outer shaft 7 is close in the left side of nut 8.
The utility model adopts the special construction built-up shaft form that can realize rapid axial and radial location installation to substitute traditional single bearing pin.Built-up shaft mainly consists of outer shaft 7, interior axle 6 and pull bar 5 three parts, and outer shaft 7 is designed with positioning step 10 according to the positioning requirements of axle, realizes accurate axially locating; Interior axle and outer between centers adopt the conical surface to join, while straining through the screw axial of interior axle core, outer shaft with interior axle along coordinating conical surface relative sliding, and then support distending has the outer shaft of longitudinal notch, outer shaft outer ring is swollen, meet the outer ring quality of fit requirement of bearing pin, to realize radially and the functional requirement axially accurately coordinating fast.During dismounting, pull bar is unclamped, beat interior axle, interior axle is released along the conical surface, because interior axle swells, active force reduces outer shaft or disappearance reduced outside diameter, increases the matching gap of outer shaft and counterpart, reduces dismounting hinge pin resistance, is convenient to dismounting hinge pin.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model and other equipment are used in conjunction with.
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
With reference to Fig. 1, Fig. 2, a kind of combined type bearing pin, comprise outer shaft 7, outer shaft 7 outer surfaces are provided with positioning step 10, and outer shaft 7 coordinates and need to be designed with cooperation step and the different diameters of axle that require that coordinate according to bearing pin, and 6, outer shaft 7 and interior axle pass through conical surface A radial fit, outer shaft 7 longitudinally has the groove 9 of wide 2-4mm, pull bar 5 be inserted in interior axle 6 and head at the large end of the conical surface place of interior axle 6, pull bar 5 the other ends and nut 8 screw, the conical surface small end end face of outer shaft 7 is close in the left side of nut 8.
Working principle of the present utility model is:
With reference to Fig. 1, joint shaft bearing and sector-segment frames 2 on combination bearing pin 4 of the present utility model, connecting rod 1 cooperatively interact, and by axle end baffle plate 3, bearing pin are pressed against on axial locating surface left.When screwing nut 8, outer shaft 7 and interior axle 6 will be along coordinating conical surface A to relatively move, and outer shaft 7 is swollen, and nut 8 stops the rotation while reaching radial fit required precision, the utility model just reaches large gap and puts into pilot hole, and adjustment is dwindled gap and realized friction tight object.When dismounting, unclamp nut 8, beat interior axle 6 small cone ends, the utility model is exited left along the conical surface, the power that swells of outer shaft 7 inside is eliminated, and outer shaft 7 radial dimensions diminish, and increases the matching gap of the utility model outer ring and sector-segment frames 2 and bearing baffle 3, for the utility model takes out, provide advantage, realize quick-detachment.On outer shaft 7 surfaces, repeatedly dismantle that wearing and tearing diminish or processing error in the situation that, the precession number of turns increase by nut 8 makes up, and extends the utility model working life, reduces the loss of bearing pin.
Claims (1)
1. a combined type bearing pin, it is characterized in that, comprise outer shaft (7), outer shaft (7) outer surface is provided with positioning step (10), between outer shaft (7) and interior axle (6), pass through conical surface A radial fit, outer shaft (7) longitudinally has the groove (9) of wide 2-4mm, pull bar (5) be inserted in interior axle (6) and head at the large end of the conical surface place of interior axle (6), pull bar (5) the other end and nut (8) screw, and the conical surface small end end face of outer shaft (7) is close in the left side of nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198614.0U CN203856824U (en) | 2014-04-21 | 2014-04-21 | Combined type pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420198614.0U CN203856824U (en) | 2014-04-21 | 2014-04-21 | Combined type pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856824U true CN203856824U (en) | 2014-10-01 |
Family
ID=51606678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420198614.0U Withdrawn - After Issue CN203856824U (en) | 2014-04-21 | 2014-04-21 | Combined type pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953631A (en) * | 2014-04-21 | 2014-07-30 | 中国重型机械研究院股份公司 | Combined regulation pin shaft |
-
2014
- 2014-04-21 CN CN201420198614.0U patent/CN203856824U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953631A (en) * | 2014-04-21 | 2014-07-30 | 中国重型机械研究院股份公司 | Combined regulation pin shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |