CN205600250U - Apparatus for detaching pin - Google Patents
Apparatus for detaching pin Download PDFInfo
- Publication number
- CN205600250U CN205600250U CN201520986431.XU CN201520986431U CN205600250U CN 205600250 U CN205600250 U CN 205600250U CN 201520986431 U CN201520986431 U CN 201520986431U CN 205600250 U CN205600250 U CN 205600250U
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- China
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- hydraulic
- bolt
- spacer
- thread bush
- hydraulic pressure
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Abstract
The utility model discloses an apparatus for detaching pin, including hydraulic pressure bolt elongator, hydraulic power unit, high strength bolt, spacer and M100 thread bush, its characterized in that: with high strength bolt, spacer and M100 thread bush with wait to tear open the round pin hub connection, hydraulic pressure bolt elongator screw in M100 thread bush pastes tight spacer, hydraulic pressure oil pipe connects hydraulic pressure bolt elongator and hydraulic power unit, good back is connected to the power, and to oiling in the hydraulic stretching ware, the hydraulic stretching ware drives the bolt to the out -draw to the drive is waited to tear open the round pin axle and is broken away from the frame body. The utility model has the advantages that easy operation, convenient to use, protective frame body dismantle the round pin axle, dismantle save time 2 hour / than the jack, than machine tool machining save time 10 hour /, need not the lathe boring, save the lathe resource.
Description
Technical field
This utility model belongs to field of mechanical technique, a kind of detaching device for pin shaft, it is adaptable to dismounting and change bearing pin in the maintenance of rolling mill framework.
Background technology
Ma Gangsi steel rolls 1, in 2# machine fan-shaped section maintenance accuracy resumption, four connecting rods connecting upper and lower frames are fixed by eight bearing pins altogether, need dismounting and change bearing pin in maintenance.Owing to for many years without dismounting, bearing pin becomes rusty extremely the most completely, utilize M24 bolt to add a thousand pieces of gold top pull and pull out.Two jack coordinate drawing bearing pin with bolt, and the power acting on bolt is uneven, and bolt failure, not at same axis, is caused in pulling force and bearing pin center.In drawing, constantly tapping jack to shake, cause damage of jack, labor strength is big.Wherein horizontal segment space is less cannot place jack at all.Machine tooling can only be used, leave a little surplus through numerical control boring and milling machine tooling boring, remove with flame cutting, easily damaged frame body in lathe and flame cutting, causes bigger reparation.Machine tooling is the longest, lathe resource occupation, and cost increases.
Summary of the invention
The problem that the purpose of this utility model is aiming at existing existence, a kind of detaching device for pin shaft is provided, avoid damage of jack, minimizing lathe resource occupation, do not injure frame body, quickly and easily dismounting corrosion bearing pin, reduce labor strength, improve work efficiency.
The purpose of this utility model is achieved in that a kind of detaching device for pin shaft, including hydraulic bolt tensioning jack, hydraulic power unit, high-strength bolt, spacer and M100 thread bush, it is characterized in that: high-strength bolt, spacer and M100 thread bush are connected with bearing pin to be torn open, hydraulic bolt tensioning jack screws in M100 thread bush and is adjacent to spacer, and hydraulic oil pipe connects hydraulic bolt tensioning jack and hydraulic power unit；After power supply connects, oiling in hydraulic elongator, hydraulic elongator drives bolt to stretch out, thus drives bearing pin to be torn open to depart from frame body.
The hydraulic power that this utility model provides by Hydraulic Station is converted into maximum up to 3576KN pulling force (about 357t pulling force) through hydraulic elongator, acts on high-strength bolt and pulls bearing pin to depart from frame body.
Compared with prior art, the utility model has the advantages that: simple to operate, easy to use, protect-ing frame structure body dismounting bearing pin, the dismounting of relatively jack is saved time 2 h/part, relatively machine tooling saving 10 hours/part of time, it is not necessary to lathe boring, is saved lathe resource.
Accompanying drawing explanation
Fig. 1: this utility model uses figure.
In figure: 1, hydraulic bolt tensioning jack 2, spacer 3, bearing pin to be torn open 4, frame body 5, M100 thread bush 6, high-strength bolt 7, hydraulic power unit.
Detailed description of the invention
For further describing this utility model, below in conjunction with embodiment and accompanying drawing, this utility model is further described.
As shown in the figure, a kind of detaching device for pin shaft, including hydraulic bolt tensioning jack 1, hydraulic power unit 7, high-strength bolt 6, spacer 2 and M100 thread bush 5, it is characterized in that: high-strength bolt 6, spacer 2 and M100 thread bush 5 are connected with bearing pin 3 to be torn open, hydraulic bolt tensioning jack 1 screws in M100 thread bush 5 and is adjacent to spacer 2, and hydraulic oil pipe connects hydraulic bolt tensioning jack 1 and hydraulic power unit 7；After power supply connects, oiling in hydraulic bolt tensioning jack 1, hydraulic bolt tensioning jack 1 drives high-strength bolt 6 to stretch out, thus drives bearing pin 3 to be torn open to depart from frame body 4.
Stretching displacement 20mm every time, after screwing, continues stretching, increase spacer 2 if desired with supplementary stretcher stroke in pressure release is backward.Utilize the features such as the powerful pulling force of hydraulic bolt tensioning jack 1, uniform force, working space are little to dismantle bearing pin 3, improve construction working efficiency, reduce cost.The most successfully try out 3 fan-shaped section.
Claims (1)
1. a detaching device for pin shaft, including hydraulic bolt tensioning jack (1), hydraulic power unit (7), high-strength bolt (6), spacer (2) and M100 thread bush (5), it is characterized in that: high-strength bolt (6), spacer (2) and M100 thread bush (5) are connected with bearing pin to be torn open (3), hydraulic bolt tensioning jack (1) screws in M100 thread bush (5) and is adjacent to spacer (2), and hydraulic oil pipe connects hydraulic bolt tensioning jack (1) and hydraulic power unit (7)；After power supply connects, oiling in hydraulic bolt tensioning jack (1), hydraulic bolt tensioning jack (1) drives high-strength bolt (6) to stretch out, thus drives bearing pin to be torn open (3) to depart from frame body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986431.XU CN205600250U (en) | 2015-12-03 | 2015-12-03 | Apparatus for detaching pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986431.XU CN205600250U (en) | 2015-12-03 | 2015-12-03 | Apparatus for detaching pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205600250U true CN205600250U (en) | 2016-09-28 |
Family
ID=56960773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520986431.XU Active CN205600250U (en) | 2015-12-03 | 2015-12-03 | Apparatus for detaching pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205600250U (en) |
-
2015
- 2015-12-03 CN CN201520986431.XU patent/CN205600250U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |