CN209303995U - A kind of reparation structure that roller headgear falls off - Google Patents
A kind of reparation structure that roller headgear falls off Download PDFInfo
- Publication number
- CN209303995U CN209303995U CN201821664090.4U CN201821664090U CN209303995U CN 209303995 U CN209303995 U CN 209303995U CN 201821664090 U CN201821664090 U CN 201821664090U CN 209303995 U CN209303995 U CN 209303995U
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- China
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- roller
- headgear
- roller headgear
- spindle nose
- falls
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Abstract
The utility model relates to a kind of reparation structures that roller headgear falls off, including roller headgear (1), spindle nose (2) and several positioning pins (3), the roller headgear (1) is set on spindle nose (2), several location holes (4) being mutually communicated are offered on the roller headgear (1), spindle nose (2), several positioning pins (3), which correspond, to be plugged in several location holes (4), is welded with tie point (5) between the end face and location hole (4) of the positioning pin (3).By increasing the structures such as location hole and positioning pin, keep fixation of the roller headgear on spindle nose more stable, primary reparation in place, avoids falling off again.
Description
Technical field
The utility model relates to the restorative procedures of working roll especially roll.
Background technique
There is pullover obscission in use in roll used in milling train, especially in roll transmission side, roller head
Set is more easier in use there is a phenomenon where loosening to exit, referring to Fig. 1, Fig. 2, so that the normal operation of roll is influenced,
Therefore need to repair the roller headgear to fall off, previous way be roller headgear is tapped reset after make end face spot welding is online
With referring to Fig. 3, Fig. 4.But can occur loose or dislocation again, and reset again and increase built-up welding area, repairing effect is influenced,
It cannot thoroughly solve the problems, such as that roller headgear falls off again, roller headgear is in roller rotational process, by the effect of impact force,
In the case where falling off, illustrate not being interference fit between set and head, for the two there are fit clearance, spot welding can only be unilateral real
It applies, and unilateral welding force can not be stablized, resist be hit power and rotary force securely, fall off again so as to cause roller headgear.
Utility model content
Technical problem to be solved in the utility model is to provide the new roller headgear of one kind for the above-mentioned prior art to fall off
Restorative procedure can thoroughly solve the spindle nose of REPAIR WELDING and cover the technical problem that falls off again.
A kind of the technical scheme in the invention for solving the above technical problem are as follows: reparation knot that roller headgear falls off
Structure, it is characterised in that: including roller headgear, spindle nose and several positioning pins, the roller headgear is set on spindle nose, the roller headgear,
Several location holes being mutually communicated are offered on spindle nose, several positioning pin one-to-one correspondence are plugged in several positioning holes, institute
It states and is welded with tie point between the end face of positioning pin and location hole.
Preferably, the length of the positioning pin is 30mm, and the depth of the location hole is 40mm.
Preferably, the inside for being located at positioning pin and being located at spindle nose of the tie point, positioning pin bear pressure in the inside of spindle nose
Power is maximum, and spot welding is carried out at this makes positioning pin and location hole inner wall form tie point, positioning pin can be prevented in positioning hole
It loosens.
Preferably, the size of the positioning pin: φ 10+0.01~0.05mm, plus tolerance can prevent positioning pin excessively pine and
Falling off from positioning hole causes roller headgear to fall off again.
Preferably, the outer edge of the roller headgear and spindle nose is welded with several tie points.
Operating procedure is as follows
(1) positioning pin is made, it is several, it is desirable that plus tolerance；
(2) the roller headgear to fall off is installed on spindle nose, after being installed in place, is slightly positioned in the outer ring spot welding of roller headgear；
(3) pre-perforated position is marked in the outer peripheral surface subscript of roller headgear, and in pre-perforated position polishing facet, small flat
Technique sample dotting punch on face；
(4) it is punched with drill bit in technique designated position, hole deep length is greater than the length of positioning pin, forms location hole；
(5) positioning pin is squeezed into positioning hole, and spot welding is firm in hole.
Compared with the prior art, the advantages of the utility model are: providing a kind of reparation structure that roller headgear falls off, lead to
The structures such as increase location hole and positioning pin are crossed, keep fixation of the roller headgear on spindle nose more stable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model embodiment roller headgear falls off；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the REPAIR WELDING figure that existing roller headgear falls off；
Fig. 4 is the REPAIR WELDING figure (side view) that existing roller headgear falls off；
Fig. 5 is the cross-sectional view that the embodiment of the present application central roll headgear repairs structure；
Fig. 6 is the partial enlarged view of positioning pin and location hole in Fig. 5；
Fig. 7 is the side view that the embodiment of the present application central roll headgear repairs structure.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As illustrated in figs. 5-7, the reparation structure that the roller headgear in the present embodiment falls off, including roller headgear, spindle nose and two
Positioning pin, roller headgear are set on spindle nose, and roller headgear, spindle nose offer the location hole symmetrical above and below being mutually communicated, location hole
There are two the top and bottom end that are located at spindle nose and roller headgear, two positioning pins one-to-one correspondence is plugged in two positioning holes up and down,
It is welded with tie point between the end face and location hole of positioning pin, which is located at the inside of spindle nose.
In the present embodiment, the length of positioning pin is 30mm, and the depth of diameter phi 10+0.01~0.05mm, location hole are
40mm。
Further, the outer ledge of roller headgear and spindle nose is also welded with several tie points.
The restorative procedure that roller headgear falls off:
(1) production positioning pin, two, it is desirable that plus tolerance；
(2) the roller headgear to fall off is installed on spindle nose, after being installed in place, is slightly positioned in the outer ring spot welding of roller headgear；
(3) pre-perforated position is marked in the outer peripheral surface subscript of roller headgear, and in pre-perforated position polishing facet, small flat
Technique sample dotting punch on face；
(4) it is punched with M10mm drill bit cooperation magnetic drill press in technique designated position, hole depth 40mm forms location hole；
(5) positioning pin is squeezed into positioning hole, and spot welding is firm in hole.
It can reach restorable effect when reusing after reparation, can once repair success, no longer fall off.It can be also used in set
In head fabrication and installation process, it can avoid falling off accident.
The application implements operation and is easy without changing other process.Process cost is extremely low, and stability is good, effect is found pole and seen
Shadow.
In addition to the implementation, the utility model further includes having other embodiments, all to use equivalents or equivalent
The technical solution that alternative is formed, should all fall within the protection scope of the utility model claims.
Claims (5)
1. a kind of reparation structure that roller headgear falls off, it is characterised in that: including roller headgear (1), spindle nose (2) and several positioning
It sells (3), the roller headgear (1) is set on spindle nose (2), and the roller headgear (1), spindle nose offer several be mutually communicated on (2)
Location hole (4), several positioning pins (3), which correspond, to be plugged in several location holes (4), the end of the positioning pin (3)
Tie point (5) are welded between face and location hole (4).
2. the reparation structure that roller headgear according to claim 1 falls off, it is characterised in that: the length of the positioning pin
For 30mm, the depth of the location hole (4) is 40mm.
3. the reparation structure that roller headgear according to claim 1 falls off, it is characterised in that: the tie point (5)
It is located at the inside that positioning pin is located at spindle nose (2).
4. the reparation structure that roller headgear according to claim 2 falls off, it is characterised in that: the positioning pin (3)
Size: φ 10+0.01~0.05mm.
5. the reparation structure that roller headgear according to claim 1 falls off, it is characterised in that: the roller headgear and spindle nose
Outer edge be welded with several tie points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664090.4U CN209303995U (en) | 2018-10-15 | 2018-10-15 | A kind of reparation structure that roller headgear falls off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664090.4U CN209303995U (en) | 2018-10-15 | 2018-10-15 | A kind of reparation structure that roller headgear falls off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209303995U true CN209303995U (en) | 2019-08-27 |
Family
ID=67671037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821664090.4U Active CN209303995U (en) | 2018-10-15 | 2018-10-15 | A kind of reparation structure that roller headgear falls off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209303995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500350A (en) * | 2021-07-12 | 2021-10-15 | 重庆钢铁股份有限公司 | Repairing structure and repairing method for bushing on flat square of working roll |
-
2018
- 2018-10-15 CN CN201821664090.4U patent/CN209303995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500350A (en) * | 2021-07-12 | 2021-10-15 | 重庆钢铁股份有限公司 | Repairing structure and repairing method for bushing on flat square of working roll |
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