CN208099738U - A kind of extension type mandril - Google Patents
A kind of extension type mandril Download PDFInfo
- Publication number
- CN208099738U CN208099738U CN201820196829.7U CN201820196829U CN208099738U CN 208099738 U CN208099738 U CN 208099738U CN 201820196829 U CN201820196829 U CN 201820196829U CN 208099738 U CN208099738 U CN 208099738U
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- China
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- outer tube
- positioning pin
- extension type
- circumference surface
- telescopic rod
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Abstract
The utility model discloses a kind of extension type mandrils, belong to preparation equipment technical field.The utility model includes outer tube, telescopic rod, positioning pin, and two rows of location holes are provided on the outer circumference surface of the outer tube, and the outer circumference surface upper end of outer tube is provided with two handles；The positioning pin passes through a pair of of location hole on outer tube outer circumference surface；The telescopic rod is placed in outer tube, and the outer tube is the steel pipe casing that a root long is 800mm, internal diameter 100mm, outer diameter 130mm.The utility model can effectively solve in roll squeezer cargo handling process, and jack forms too short problem, can effectively adjust mandril length by positioning pin, convenient and practical, and structure is simple.
Description
Technical field
The utility model relates to preparation equipment technical fields, more specifically to a kind of extension type mandril.
Background technique
There are two bench roller press in maanshan iron and steel nanshan mine industry company at present, with the abrasion of roll body, require every year to roll squeezer into
Row maintenance needs to remove rack for dynamic roller is parallel with fixed roll, then put into row replacement with traveling crane in maintenance process, and entire
About 2.5 meters of shift motion.The dynamic roller and fixed roll of roll squeezer weigh more than 40 tons respectively, to be moved out, generally require using extremely
Few 10 tons of bottle gouard moved by hands, maintenance just needs to take a substantial amount of time in this ring every time, usually pulls out two roll bodies, then
The time for needing to expend about two days is reinstalled, while labor intensity is very big.And if can effectively be subtracted using hydraulic jack
Few labor intensity, there are also the working times, but the stroke that jack ejects every time is but very short, is unable to satisfy need of work.
Utility model content
1. technical problems to be solved
In view of the defects existing in the prior art with deficiency, the utility model provides a kind of extension type mandril, to understand
It is certainly too short in jack use process, in order to meet the problem that stroke is too short in roll squeezer cargo handling process.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model is：
A kind of extension type mandril of the utility model, including outer tube, telescopic rod, positioning pin, the outer tube
Two rows of location holes are provided on outer circumference surface, the outer circumference surface upper end of outer tube is provided with two handles；The positioning pin is worn
Cross a pair of of location hole on outer tube outer circumference surface；The telescopic rod is placed in outer tube.
Further, the outer tube is the steel pipe casing that a root long is 800mm, internal diameter 100mm, outer diameter 130mm.
Further, two rows of location holes correspond, and one shares seven pairs, and location hole aperture is 25mm.
Further, the telescopic rod is a solid-iron rounding cylinder, diameter 80mm, a length of 800mm.
Further, the positioning pin is the screw rod of a steel, diameter 20mm, length 160mm.
3. beneficial effect
Using technical solution provided by the utility model, compared with prior art, have the advantages that：
A kind of extension type mandril of the utility model, which can effectively solve in roll squeezer cargo handling process, very heavy
Top forms too short problem, can effectively adjust mandril length by positioning pin, convenient and practical, and structure is simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the Telescopic rod structure schematic diagram of the utility model；
Fig. 3 is the locating pin structure schematic diagram of the utility model.
In figure：1, handle；2, outer tube；3, location hole；4, telescopic rod；5, positioning pin.
Specific embodiment
The technical solution of the utility model is described further with specific embodiment with reference to the accompanying drawing：
Embodiment 1
It can be seen that a kind of extension type mandril of the present embodiment, including outer tube 2, telescopic rod from Fig. 1, Fig. 2 and Fig. 3
4, positioning pin 5 are provided with two rows of location holes 3 on the outer circumference surface of above-mentioned outer tube 2, and the outer circumference surface upper end of outer tube 2 is set
It is equipped with two handles 1；Above-mentioned positioning pin 5 passes through a pair of of location hole 3 on 2 outer circumference surface of outer tube；Above-mentioned telescopic rod 4 is put
It sets in outer tube 2.
Above-mentioned outer tube 2 is the steel pipe casing that a root long is 800mm, internal diameter 100mm, outer diameter 130mm, two rows of location holes
3 correspond, and one shares seven pairs, and 3 aperture of location hole is 25mm, and telescopic rod 4 is a solid-iron rounding cylinder, and diameter is
80mm, a length of 800mm, positioning pin 5 are the screw rod of a steel, diameter 20mm, length 160mm.
A kind of extension type mandril of the present embodiment removes two roll bodies in gantry procedure in roll-in machine overhauling, when
After roll body and roll squeezer rack are greater than at a distance from 800mm, this extension type mandril can be used at this time, utilize the outer of mandril
Outer tube 2 is placed among roll body and roll squeezer rack by the handle 1 on casing 2, and telescopic rod 4 is placed on outer tube 2 by outer tube 2
It is interior, then positioning pin 5 is passed through in corresponding a pair of of location hole 3 on outer tube 2, forms outer tube 2 and telescopic rod 4 properly
Length mandril, reach the operating condition of hydraulic jack, start hydraulic jack.
After hydraulic jack Overstroke, close hydraulic jack, top start to withdraw, at this time the roll body of roll squeezer with
Rack distance becomes bigger, just needs outward to adjust telescopic rod 4 at this time, be relocated with positioning pin 5, so that mandril length
It lengthens, reaches the operating condition of hydraulic jack, restart hydraulic jack.The above movement is repeated, roll squeezer can be removed
Rack, it is time saving and energy saving.
A kind of extension type mandril of the present embodiment, the device can effectively solve in roll squeezer cargo handling process, jack
Too short problem is formed, mandril length is effectively adjusted by positioning pin, it is convenient and practical, and structure is simple.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (5)
1. a kind of extension type mandril, it is characterised in that：Including outer tube (2), telescopic rod (4), positioning pin (5), described is outer
It is provided on the outer circumference surface of casing (2) two rows of location holes (3), the outer circumference surface upper end of outer tube (2) is provided with two handles
(1)；The positioning pin (5) passes through a pair of of location hole (3) on outer tube (2) outer circumference surface；The telescopic rod (4) is placed
In outer tube (2).
2. a kind of extension type mandril according to claim 1, it is characterised in that：The outer tube (2) is a root long
For the steel pipe casing of 800mm, internal diameter 100mm, outer diameter 130mm.
3. a kind of extension type mandril according to claim 1, it is characterised in that：Two rows of location holes (3) are one by one
Corresponding, one shares seven pairs, and location hole (3) aperture is 25mm.
4. a kind of extension type mandril according to claim 1, it is characterised in that：The telescopic rod (4) is a reality
The iron cylindrical body of the heart, diameter 80mm, a length of 800mm.
5. a kind of extension type mandril according to claim 1, it is characterised in that：The positioning pin (5) is a steel
The screw rod of system, diameter 20mm, length 160mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820196829.7U CN208099738U (en) | 2018-02-05 | 2018-02-05 | A kind of extension type mandril |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820196829.7U CN208099738U (en) | 2018-02-05 | 2018-02-05 | A kind of extension type mandril |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208099738U true CN208099738U (en) | 2018-11-16 |
Family
ID=64124011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820196829.7U Active CN208099738U (en) | 2018-02-05 | 2018-02-05 | A kind of extension type mandril |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208099738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605271A (en) * | 2018-12-28 | 2019-04-12 | 南京高速齿轮制造有限公司 | Adjustable latch dismounting structure |
-
2018
- 2018-02-05 CN CN201820196829.7U patent/CN208099738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605271A (en) * | 2018-12-28 | 2019-04-12 | 南京高速齿轮制造有限公司 | Adjustable latch dismounting structure |
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