CN109895022A - A kind of dismounting of rolling mill main motor safety pin and replacing options - Google Patents
A kind of dismounting of rolling mill main motor safety pin and replacing options Download PDFInfo
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- CN109895022A CN109895022A CN201711287155.8A CN201711287155A CN109895022A CN 109895022 A CN109895022 A CN 109895022A CN 201711287155 A CN201711287155 A CN 201711287155A CN 109895022 A CN109895022 A CN 109895022A
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- safety pin
- pull rod
- steel plate
- circular steel
- hydraulic jack
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Abstract
The present invention relates to fashioned iron process equipments, dismounting and replacing options more particularly to rolling mill main motor safety pin, the tool that the method uses includes that threaded pull rod, 4 nuts being threadedly engaged with pull rod both ends, circular steel plate A and circular steel plate B, the sleeve and hollow hydraulic jack for offering the centre bore passed through for pull rod is arranged in both ends, pull rod is stretched using jack, and then drives steel plate safety pin to be released or is pushed into the mounting hole of shaft coupling by pull rod.It by the use of said combination tool, avoids hammering in safety pin disassembly process using sledgehammer, promotes operation safety coefficient, and pushing away, drawing by combination tool, complete replacement, the installation exercise of safety pin, achieve the purpose that promote operating efficiency.
Description
Technical field
The present invention relates to fashioned iron process equipments, dismounting and replacing options more particularly to rolling mill main motor safety pin.
Background technique
Milling train is one of important equipment of section steel works, and main motor safety pin is the tie of rolling mill main motor connection speed reducer,
Need to inspect periodically replacement.As shown in Figure 1, safety pin 1 is cone barrel under normal circumstances, the narrow head (right side of illustrated safety pin 1
End) size is generally equivalent to the nominal dimension of mounting hole, and wide head (left end of illustrated safety pin 1) is generally bigger than narrow head diameter
20mm.Since safety pin 1 and the fit clearance of shaft coupling 2 are compact, magnitude of interference is big, when replacement, needs to cut off one with burning torch and cut
Then trace is got with sledgehammer operation, whole process needs at least 3 people cooperation, time-consuming and laborious, and since working space is narrow, is made
It is high with sledgehammer hammering frequency, so safety coefficient is relatively low.It usually removes a safety pin and probably needs 2-3 hours, installed
Journey is same, therefore the site examining and repairing time for replacing safety pin has to 10 hours or more, could complete.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide it is a kind of efficiently, easy, safety roll
Method for dismounting, installation method and the replacing options of owner's motor safety pin.
In order to achieve the above objects and other related objects, an embodiment of the invention provides a kind of rolling mill main motor peace
The method for dismounting sold entirely, the safety pin are cone barrel, and the tool that this method uses includes that threaded pull rod, 4 is arranged in both ends
A nut being threadedly engaged with pull rod both ends, the circular steel plate A and circular steel plate B that offer the centre bore passed through for pull rod,
Sleeve and hollow hydraulic jack；When disassembly, pull rod is sequentially passed through into circular steel plate A, hollow hydraulic jack, sleeve, safety
Wide head, the narrow head of safety pin, circular steel plate B are sold, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, described
For housing supports between the bottom end and shaft coupling of hollow hydraulic jack, internal diameter is greater than the outer diameter of safety pin；It will be hollow hydraulic
Jack is laid flat, and when rod length direction is located at horizontal direction, starts hollow hydraulic jack, hollow hydraulic jack jacking
Pull rod is stretched, the pull rod being stretched pulls circular steel plate B, and then is released safety pin from shaft coupling by circular steel plate B.
In one embodiment, the present invention provides a kind of installation method of rolling mill main motor safety pin, the safety pin
For cone barrel, the tool that this method uses includes that threaded pull rod, 4 spiral shells being threadedly engaged with pull rod both ends is arranged in both ends
Circular steel plate A and circular steel plate B that be female, offering the centre bore passed through for pull rod and hollow hydraulic jack；It, will when installation
It is wide that pull rod sequentially passes through circular steel plate B, hollow hydraulic jack, the safety pin mounting hole of shaft coupling, the narrow head of safety pin, safety pin
Head, circular steel plate A, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, hollow hydraulic jack are put
It is flat, when rod length direction is located at horizontal direction, start hollow hydraulic jack, hollow hydraulic jack jacking, which stretches, draws
Bar, the pull rod being stretched pulls circular steel plate A, and then is installed the safety pin of safety pin push-in shaft coupling by circular steel plate A
Kong Zhong.
In one embodiment, the present invention provides a kind of replacing options of rolling mill main motor safety pin, the safety pin
For cone barrel, the tool that this method uses includes that threaded pull rod, 4 spiral shells being threadedly engaged with pull rod both ends is arranged in both ends
Circular steel plate A and circular steel plate B, sleeve and hollow hydraulic jack female, that offer the centre bore passed through for pull rod；Safety
Pin disassembly: pull rod is sequentially passed through into circular steel plate A, hollow hydraulic jack, sleeve, the wide head of safety pin, the narrow head of safety pin, circle
Steel plate B, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, and the housing supports are in hollow hydraulic jack
Between the bottom end and shaft coupling on top, internal diameter is greater than the outer diameter of safety pin；Hollow hydraulic jack is laid flat, in rod length side
To hollow hydraulic jack when being located at horizontal direction, is started, hollow hydraulic jack jacking stretches pull rod, the pull rod being stretched
Circular steel plate B is pulled, and then is released safety pin from shaft coupling by circular steel plate B；Safety pin installation: pull rod is sequentially passed through
Circular steel plate B, hollow hydraulic jack, the safety pin mounting hole of shaft coupling, the narrow head of safety pin, the wide head of safety pin, circular steel plate
A, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, hollow hydraulic jack are laid flat, long in pull rod
When degree direction is located at horizontal direction, start hollow hydraulic jack, hollow hydraulic jack jacking stretches pull rod, is stretched
Pull rod pulls circular steel plate A, and then will be in the safety pin mounting hole of safety pin push-in shaft coupling by circular steel plate A.
Above-mentioned technical proposal provided by the invention, bonding apparatus feature avoid safety by the use of a set of combination tool
Hammered in pin disassembly process using sledgehammer, promote operation safety coefficient, and can by the pushing away of combination tool, draw, complete safety
The replacement of pin, installation exercise achieve the purpose that promote operating efficiency.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of rolling mill main motor safety pin and shaft coupling cooperation；
Fig. 2 is shown as the operation schematic diagram of safety pin method for dismounting one embodiment of the present invention；
Fig. 3 is shown as the operation schematic diagram of safety pin installation method one embodiment of the present invention.
Component label instructions
1 safety pin
2 shaft couplings
3 pull rods
4 nuts
5 circular steel plates
6 circular steel plates
7 hollow hydraulic jacks
8 sleeves
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that structure, ratio, size etc. depicted in this specification attached drawing, only to cooperate disclosed in specification
Content be not intended to limit the invention enforceable qualifications, therefore not so that those skilled in the art understands and reads
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing institute of the present invention
Under the effect of capable of generating and the purpose that can reach, the range that disclosed technology contents can be covered should all be still fallen in
It is interior.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also only just
In being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, without substantive change
Under more technology contents, when being also considered as the enforceable scope of the present invention.
To promote overhaul efficiency, the present invention prepares a set of combination tool according to the size of safety pin, for tearing open for safety pin
It unloads and installs.The combination tool includes: pull rod, and the both ends of pull rod are provided with screw thread；4 spiral shells being threadedly engaged with pull rod both ends
It is female；2 pieces of circular steel plates for offering the centre bore passed through for pull rod；Hollow hydraulic jack.Wherein, pull rod needs enough
Length, to connect safety pin and jack, and pull safety pin under the action of jack；Circular steel plate is prolonging for pull rod
It stretches, mainly acts on safety pin end face, for dismounting safety pin use after being secured with nuts；Jack acts on the one of safety pin
Side acts on dismounting safety pin using jacking.With reference to the accompanying drawing, by embodiment illustrate safety pin method for dismounting of the invention and
Installation method.
As shown in Fig. 2, in the disassembly process of safety pin:
Pull rod 3 is sequentially passed through into one piece of circular steel plate 5, hollow hydraulic jack 7, sleeve 8, the wide head of safety pin, safety pin
Narrow head, another piece of circular steel plate 6, both ends are tightened in the circular steel plate of two sides by two nuts 4 respectively, wherein the sleeve 8
It is supported between the bottom end and shaft coupling 2 of hollow hydraulic jack 7, internal diameter is greater than the outer diameter of safety pin 1.By hollow hydraulic thousand
Jin top 7 is laid flat, and when 3 length direction of pull rod is located at horizontal direction, starts hollow hydraulic jack 7, hollow hydraulic jack 7 is pushed up
Stretching pull rod 3 is risen, the pull rod 3 being stretched pulls the circular steel plate 6 for being located at the narrow head side of safety pin, the diameter of the circular steel plate 6
Less than or equal to the narrow head of safety pin outer diameter and be greater than the narrow head of safety pin internal diameter, and then by the circular steel plate 6 by safety pin 1 from
It is released in shaft coupling 2.Whole dismounting process only needs 3 people to cooperate, and 1 demolishing process of individual security pin can be completed for about 15-25 minutes.
Sleeve 8 can carry out lengthening processing according to the length of safety pin 1, to guarantee that safety pin 1 can be completely pulled out of.
As shown in figure 3, in the installation process of safety pin:
Pull rod 3 is sequentially passed through into one piece of circular steel plate 6, hollow hydraulic jack 7, the safety pin mounting hole of shaft coupling 2, peace
The wide head of narrow head, safety pin, another piece of circular steel plate 5 are sold entirely, and both ends are tightened on the circular steel plate of two sides by two nuts 4 respectively
On, the bottom end of hollow hydraulic jack 7 acts against on shaft coupling 2.Hollow hydraulic jack 7 is laid flat, in 3 length direction of pull rod
When positioned at horizontal direction, start hollow hydraulic jack 7, the hollow jacking of hydraulic jack 7 stretches pull rod 3, the drawing being stretched
Bar 3 pulls the circular steel plate 5 for being located at the wide head side of safety pin, and the diameter of the circular steel plate 5 is greater than or equal to the outer of the wide head of safety pin
Diameter, and then safety pin 1 is pushed into the safety pin mounting hole of shaft coupling 2 by the circular steel plate 5.It, will be safe using this method
Pin 1 is thoroughly installed in place, it is only necessary to which a few minutes can complete.
Above-mentioned technical proposal provided by the invention, bonding apparatus feature avoid safety by the use of a set of combination tool
It is hammered in pin disassembly process using sledgehammer, overcomes the problems, such as narrow space, promote operation safety coefficient, and pass through combination tool
It pushes away, draw, complete replacement, the installation exercise of safety pin, achieve the purpose that promote operating efficiency.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (3)
1. a kind of method for dismounting of rolling mill main motor safety pin, the safety pin is cone barrel, it is characterised in that:
The tool that this method uses includes that both ends are arranged threaded pull rod, 4 nuts being threadedly engaged with pull rod both ends, open up
There are circular steel plate A and circular steel plate B, the sleeve and hollow hydraulic jack of the centre bore passed through for pull rod；
When disassembly, by pull rod sequentially pass through circular steel plate A, hollow hydraulic jack, sleeve, the wide head of safety pin, the narrow head of safety pin,
Circular steel plate B, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, and the housing supports are hollow hydraulic
Between the bottom end and shaft coupling of jack, internal diameter is greater than the outer diameter of safety pin；Hollow hydraulic jack is laid flat, it is long in pull rod
When degree direction is located at horizontal direction, start hollow hydraulic jack, hollow hydraulic jack jacking stretches pull rod, is stretched
Pull rod pulls circular steel plate B, and then is released safety pin from the safety pin mounting hole of shaft coupling by circular steel plate B.
2. a kind of installation method of rolling mill main motor safety pin, the safety pin is cone barrel, it is characterised in that:
The tool that this method uses includes that both ends are arranged threaded pull rod, 4 nuts being threadedly engaged with pull rod both ends, open up
Have the centre bore passed through for pull rod circular steel plate A and circular steel plate B and hollow hydraulic jack；
When installation, pull rod is sequentially passed through into circular steel plate B, hollow hydraulic jack, the safety pin mounting hole of shaft coupling, safety pin
The wide head of narrow head, safety pin, circular steel plate A, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, will be hollow
Hydraulic jack is laid flat, and when rod length direction is located at horizontal direction, starts hollow hydraulic jack, hollow hydraulic jack
Jacking stretches pull rod, and the pull rod being stretched pulls circular steel plate A, and then safety pin is pushed into shaft coupling by circular steel plate A
In safety pin mounting hole.
3. a kind of replacing options of rolling mill main motor safety pin, the safety pin is cone barrel, it is characterised in that:
The tool that this method uses includes that both ends are arranged threaded pull rod, 4 nuts being threadedly engaged with pull rod both ends, open up
There are circular steel plate A and circular steel plate B, the sleeve and hollow hydraulic jack of the centre bore passed through for pull rod；
Safety pin disassembly: pull rod is sequentially passed through into circular steel plate A, hollow hydraulic jack, sleeve, the wide head of safety pin, safety pin
Narrow head, circular steel plate B, the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, and the housing supports are in sky
Between the bottom end and shaft coupling of heart hydraulic jack, internal diameter is greater than the outer diameter of safety pin；Hollow hydraulic jack is laid flat,
When rod length direction is located at horizontal direction, starting hollow hydraulic jack, hollow hydraulic jack jacking stretches pull rod, by
The pull rod of stretching pulls circular steel plate B, and then is released safety pin from shaft coupling by circular steel plate B；
Safety pin installation: pull rod is sequentially passed through into circular steel plate B, hollow hydraulic jack, the safety pin mounting hole of shaft coupling, peace
The wide head of narrow head, safety pin, circular steel plate A are sold entirely, and the both ends of pull rod are spun in the circular steel plate of two sides by two nuts respectively, will
Hollow hydraulic jack is laid flat, and when rod length direction is located at horizontal direction, starts hollow hydraulic jack, and hollow hydraulic thousand
The jacking of jin top stretches pull rod, and the pull rod being stretched pulls circular steel plate A, and then safety pin is pushed into shaft coupling by circular steel plate A
In the safety pin mounting hole of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287155.8A CN109895022A (en) | 2017-12-07 | 2017-12-07 | A kind of dismounting of rolling mill main motor safety pin and replacing options |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711287155.8A CN109895022A (en) | 2017-12-07 | 2017-12-07 | A kind of dismounting of rolling mill main motor safety pin and replacing options |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109895022A true CN109895022A (en) | 2019-06-18 |
Family
ID=66939348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711287155.8A Pending CN109895022A (en) | 2017-12-07 | 2017-12-07 | A kind of dismounting of rolling mill main motor safety pin and replacing options |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109895022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109039A (en) * | 2020-09-17 | 2020-12-22 | 上海电气风电集团股份有限公司 | Pin shaft dismounting tool and mounting and dismounting method of variable pitch oil cylinder on hub |
| CN113829295A (en) * | 2021-10-29 | 2021-12-24 | 安徽马钢重型机械制造有限公司 | Heavy H-shaped steel roller guide beam dismounting platform device and dismounting method thereof |
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| CN205600628U (en) * | 2016-04-15 | 2016-09-28 | 南京高精船用设备有限公司 | Super large specification stern -tube bearing's on --spot dismounting device |
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| CN201316888Y (en) * | 2008-12-22 | 2009-09-30 | 上海宝钢设备检修有限公司 | Cold-rolling shearer knife rest copper coat dismounting chest developer |
| CN201760731U (en) * | 2010-07-07 | 2011-03-16 | 二重集团（德阳）重型装备股份有限公司 | Hydraulic push-and-pull device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109039A (en) * | 2020-09-17 | 2020-12-22 | 上海电气风电集团股份有限公司 | Pin shaft dismounting tool and mounting and dismounting method of variable pitch oil cylinder on hub |
| CN113829295A (en) * | 2021-10-29 | 2021-12-24 | 安徽马钢重型机械制造有限公司 | Heavy H-shaped steel roller guide beam dismounting platform device and dismounting method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |