CN203863595U - Auxiliary threading tool for replacing pulley on lower portion of casting crane - Google Patents
Auxiliary threading tool for replacing pulley on lower portion of casting crane Download PDFInfo
- Publication number
- CN203863595U CN203863595U CN201420195418.8U CN201420195418U CN203863595U CN 203863595 U CN203863595 U CN 203863595U CN 201420195418 U CN201420195418 U CN 201420195418U CN 203863595 U CN203863595 U CN 203863595U
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- China
- Prior art keywords
- pulley
- tool
- crane
- shaft
- equipment
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- Expired - Fee Related
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Abstract
The utility model relates to the field of crane equipment, in particular to an auxiliary threading tool for replacing a pulley on the lower portion of a casting crane. The tool is characterized in that the tool is of an integral structure composed of a front conical end and a rear cylindrical end, the length h of the front conical end of the tool is 180 mm to 200 mm, the taper alpha of the front conical end is 30 degrees to 35 degrees, the diameter of the rear cylindrical end is consistent with the outer diameter of a shaft body of a pulley shaft, and the cylindrical end is provided with internal threads matched with threads of the shaft end of the pulley shaft. A guide hole is formed in the tip of the front conical end. Compared with the prior art, the tool has the advantages that great convenience is brought to repair processing of the crane equipment, the clamping and blocking problem between the pulley shaft and an isolation ring is solved, a large hook beam pulley is rapidly replaced online, at present, a person only needs four hours for replacing the pulley online, the overhauling processing time of the equipment is greatly shortened, and the production capacity of the equipment is improved.
Description
Technical field
The utility model relates to crane facility field, particularly relates to a kind of auxiliary instrument that connects of changing casting crane lower pulley.
Background technology
Metallurgy is important crane gear with casting crane, be mainly used in molten iron or the molten steel of handling melting, lower pulley is the vitals of crane, when on-bne repair is changed pulley, as after adopting routine replacement method head pulley to dismantle, reinstall very difficult, pulley spindle is easily isolated ring and blocks, and may produce the crag-fast situation of pulley spindle, affects maintenance process.
Summary of the invention
The purpose of this utility model is to provide a kind of auxiliary instrument that connects of changing casting crane lower pulley, and realizes fast online replacement hook beam pulley, solves the jam problem of pulley spindle and shading ring, meets the needs of overhaul of the equipments.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of auxiliary instrument that connects of changing casting crane lower pulley, the integral structure being formed by front portion cone end and rear portion cylindrical end, its anterior cone end length h is 180～200mm, anterior cone end tapering α is 30～35 °, rear portion cylindrical end diameter is consistent with pulley spindle axle body external diameter, and cylindrical end is provided with the internal thread mating with pulley spindle axle head screw thread.
The tip of described anterior cone end is provided with draws hole.
Compared with prior art, the utility model beneficial effect is:
Process to crane overhaul of the equipments and bring very big facility, solved the jam problem of pulley spindle and shading ring, realized fast online replacement hook beam pulley, the online pulley of changing only needs 4 hours at present, greatly shorten the overhaul of the equipments processing time, improved the production capacity of equipment.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the utility model mode of operation structural representation.
In figure: 1-is auxiliary to be connected instrument 2-pulley spindle 3-shading ring 4-pulley sheet 5-spacer sleeve 6-bearing 7-and draw hole
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:
See Fig. 1, it is a kind of auxiliary execution of instrument example structural representation that connects of changing casting crane lower pulley of the utility model, the integral structure being formed by front portion cone end and rear portion cylindrical end, its anterior cone end length h is 180～200mm, anterior cone end tapering α is 30～35 °, rear portion cylindrical end diameter D is that 170mm is consistent with pulley spindle axle body external diameter, and cylindrical end is provided with the internal thread mating with pulley spindle male thread.The tip of anterior cone end is provided with draws hole 7.
Seeing Fig. 2, is the utility model mode of operation structural representation, by the auxiliary instrument 1 that connects, makes pulley spindle 2 smoothly through shading ring 3, and its concrete operation step is as follows:
1) first making is auxiliary connects instrument 1, and its front portion is nose cone, and its afterbody is provided with the internal thread mating with pulley axle head screw thread;
2) while changing online hook beam pulley, first pulley spindle 2 is launched, hang out pulley sheet 4, then new pulley sheet is put into, the auxiliary instrument 1 that connects is threaded connection and is integral with the pulley spindle 2 unloading, with assist the instrument of connecting front, pulley spindle after direction, successively through spacer sleeve 5, bearing 6 and shading ring 3, until pulley spindle 2 penetrates in pulley sheet 4 completely; As connect difficulty can be in drawing hole 7 wire rope handling, pulled in front and others push behind and connected operation;
3) take off and auxiliary connect instrument 1, by normal procedure, pulley spindle 2 is fixed, complete the replacing of pulley.
Claims (2)
1. the auxiliary instrument that connects of changing casting crane lower pulley, it is characterized in that, the integral structure being formed by front portion cone end and rear portion cylindrical end, its anterior cone end length h is 180～200mm, anterior cone end tapering α is 30～35 °, rear portion cylindrical end diameter is consistent with pulley spindle axle body external diameter, and cylindrical end is provided with the internal thread mating with pulley spindle axle head screw thread.
2. a kind of auxiliary instrument that connects of changing casting crane lower pulley according to claim 1, is characterized in that, the tip of described anterior cone end is provided with draws hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195418.8U CN203863595U (en) | 2014-04-21 | 2014-04-21 | Auxiliary threading tool for replacing pulley on lower portion of casting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420195418.8U CN203863595U (en) | 2014-04-21 | 2014-04-21 | Auxiliary threading tool for replacing pulley on lower portion of casting crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863595U true CN203863595U (en) | 2014-10-08 |
Family
ID=51644580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420195418.8U Expired - Fee Related CN203863595U (en) | 2014-04-21 | 2014-04-21 | Auxiliary threading tool for replacing pulley on lower portion of casting crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759269A (en) * | 2019-11-05 | 2020-02-07 | 攀钢集团西昌钢钒有限公司 | Pulley block replacing method |
-
2014
- 2014-04-21 CN CN201420195418.8U patent/CN203863595U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759269A (en) * | 2019-11-05 | 2020-02-07 | 攀钢集团西昌钢钒有限公司 | Pulley block replacing method |
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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: 20141008 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |