CN203875835U - Pin extracting tool - Google Patents
Pin extracting tool Download PDFInfo
- Publication number
- CN203875835U CN203875835U CN201420252400.7U CN201420252400U CN203875835U CN 203875835 U CN203875835 U CN 203875835U CN 201420252400 U CN201420252400 U CN 201420252400U CN 203875835 U CN203875835 U CN 203875835U
- Authority
- CN
- China
- Prior art keywords
- pin
- steel
- extracting tool
- groove
- pin extracting
- 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
Links
Landscapes
- Chutes (AREA)
Abstract
The utility model discloses a pin extracting tool which comprises a base, two threaded rods, a steel groove and a rubber pad. The base comprises the threaded rods, a sliding groove and a semi-arc-shaped steel ring, the steel groove is a two-piece-type steel circular-arc-shaped groove and is welded integrally with the base, and the rubber pad is a two-piece-type rubber ring and is embedded in the steel groove. The pin extracting tool has the advantages that the pin extracting tool can apply a pretightening force on a cylindrical pin which is corroded or slightly deforms on a hydraulic support better and then cooperates with a lifting hoist to apply sufficient drawing force to extract the pin, so that support maintenance speed is increased. The pin extracting tool is simple in structure, convenient and practical.
Description
Technical field
The utility model relates to a kind of service kit, more specifically says a kind of instrument that is applicable to overhaul hydraulic support pin, belongs to service kit technical field.
Background technology
A large amount of fully-mechanized mining modes that use in the colliery of China's pit mining at present, hydraulic support stand becomes the supporting of stope main body, easily there is corrosion and flexural deformation in the pin in hydraulic support, cause pin stuck under the impact of water and complexing action power.At present China does not still have can simple and effective ground drawing to go out the instrument of hydraulic pressure bracket pins, causes the hydraulic support maintenance difficulty to containing corrosion or flexural deformation pin to strengthen, and has greatly slowed down the inspection speed of support, obstruction mine safety production.Therefore simple and quick corrosion or the diastrophic pin extracted how in the time that hydraulic support overhauls is the on-the-spot problem solving be badly in need of in down-hole.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, effective, can facilitate underground work personnel in the time that hydraulic support overhauls, can simple and quickly extract the instrument of corrosion or diastrophic pin.
The purpose of this utility model can realize in the following manner: a kind of sub instrument of pulling pin, the described sub instrument of pulling pin is placed in the tail end of pin to be extracted, drive the rotation of coarse-pitch thread bar to make the surperficial close contact of rubber blanket surface and pin tail end to be extracted by six sides, workman can utilize the steel loop binding of binding iron chains in tackles and the described sub-instrument afterbody of pulling pin firm, then pulls tackles that band is extracted to pin and extracts.
As preferably, described steel loop profile is semicircular arc, and described steel tank is two-piece type steel circular groove, and described rubber blanket is two-piece type rubber ring, and the end of described coarse-pitch thread bar has a cross section to be orthohexagonal hexagonal hole.
The utility model compared with prior art has the following advantages: simple in structure, easy to use, the described sub instrument of pulling pin coordinates six sides to use, not only contribute to rapid construction, can also make rubber blanket surface tightr with the Surface Contact of pin tail end to be extracted, and then coordinate tackles that band is extracted to pin to extract fast.Extract fast corrosion or diastrophic pin on hydraulic support owing to having realized, improved the inspection speed of hydraulic support, further the safe and efficient production of mine.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is left views of accompanying drawing 1.
Accompanying drawing 3 is top views of accompanying drawing 1.
Detailed description of the invention
Shown in accompanying drawing 1, the sub instrument of pulling pin of the present embodiment comprises pedestal 1, steel tank 2, rubber blanket 3, wherein pedestal 1 comprises coarse-pitch thread bar 4, fine thread bar 5, steel loop 6, chute 7, described pedestal 1 is welded in one with described steel tank 2, described rubber blanket 3 embeds in described steel tank 2, described steel loop 6 profiles are semicircular arc, described steel tank 2 is two-piece type steel circular groove, described rubber blanket 3 is two-piece type rubber ring, and the end of described coarse-pitch thread bar 4 has a cross section to be orthohexagonal hexagonal hole.
The sub instrument of pulling pin is widely used in the maintenance of hydraulic support pin, when construction, workpeople can coordinate six sides and tackles that pin to be extracted is extracted fast the described sub instrument of pulling pin, thereby greatly improves the inspection speed of hydraulic support, and then ensures mine safety High-efficient Production.And the utility model is simple in structure, easy to use, with low cost, be easy to manufacture.
Claims (4)
1. the sub instrument of pulling pin, comprise pedestal (1), steel tank (2), rubber blanket (3), wherein pedestal (1) comprises coarse-pitch thread bar (4), fine thread bar (5), steel loop (6), chute (7), it is characterized in that: described pedestal (1) is welded in one with described steel tank (2), described rubber blanket (3) embeds in described steel tank (2).
2. the sub instrument of pulling pin according to claim 1, is characterized in that: described steel loop (6) profile is semicircular arc.
3. the sub instrument of pulling pin according to claim 1, is characterized in that: described steel tank (2) is two-piece type steel circular groove, and described rubber blanket (3) is two-piece type rubber ring.
4. the sub instrument of pulling pin according to claim 1, is characterized in that: the end of described coarse-pitch thread bar (4) has a cross section to be orthohexagonal hexagonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252400.7U CN203875835U (en) | 2014-05-18 | 2014-05-18 | Pin extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252400.7U CN203875835U (en) | 2014-05-18 | 2014-05-18 | Pin extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203875835U true CN203875835U (en) | 2014-10-15 |
Family
ID=51676378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420252400.7U Expired - Fee Related CN203875835U (en) | 2014-05-18 | 2014-05-18 | Pin extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203875835U (en) |
-
2014
- 2014-05-18 CN CN201420252400.7U patent/CN203875835U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201443547U (en) | Long-stroke double pilot sleeve type multi-stage hydraulic cylinder | |
| CN204441498U (en) | A kind of ground connection pricker easy to plug and special plug-pull tool thereof | |
| CN204371384U (en) | Anchor Agent boost motor | |
| CN204019400U (en) | A kind of clamping device of installing for electric power apparatus examination | |
| CN203875835U (en) | Pin extracting tool | |
| CN202832296U (en) | Drill rod lifting device on drilling equipment | |
| CN202390145U (en) | Fixing tool for assembling jacking frame cylinder of steel ladle of refining furnace | |
| CN201931401U (en) | Special tool for large-belt wheel jigger of oil extractor | |
| CN201722935U (en) | Steel column cable wind rope correction structure | |
| CN103711441A (en) | Drilling tool elevator arranged on power head drilling machine and used for making up and breaking out | |
| CN203568734U (en) | Novel safe lifting gear of tower crane | |
| CN203796289U (en) | Lifter for steel stand in tunnel | |
| CN204470927U (en) | Coal mine hydraulic supporting eliminator | |
| CN204195809U (en) | A kind of glass fibre reinforced plastics rockbolts cutting machine | |
| CN204212791U (en) | Driving face Novel front canopy hoisting ring device | |
| CN202336846U (en) | Disassembling device for piston of sludge pump | |
| CN205187502U (en) | Cable hoisting frame | |
| CN201982118U (en) | Individual hydraulic prop with connecting sleeve | |
| CN204265361U (en) | Workover rig winch steel rope live line head locker | |
| CN204419180U (en) | Fully-mechanized mining working disintegration face end support pin pulling out device | |
| CN104100283B (en) | Mine anchorage cable end apparatus for shaping | |
| CN204487458U (en) | Colliery is with pulling off head unit | |
| CN201236716Y (en) | Hydraulic disanchoring device | |
| CN204818581U (en) | Welding process is with slope turning device | |
| CN203973473U (en) | The directed trip hammer of a kind of beam type oil pumping machine crank pin dismounting |
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: 20141015 Termination date: 20150518 |
|
| EXPY | Termination of patent right or utility model |