CN201147769Y - Tandem mill swing arm center distance adjusting apparatus - Google Patents
Tandem mill swing arm center distance adjusting apparatus Download PDFInfo
- Publication number
- CN201147769Y CN201147769Y CNU2008200736119U CN200820073611U CN201147769Y CN 201147769 Y CN201147769 Y CN 201147769Y CN U2008200736119 U CNU2008200736119 U CN U2008200736119U CN 200820073611 U CN200820073611 U CN 200820073611U CN 201147769 Y CN201147769 Y CN 201147769Y
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- CN
- China
- Prior art keywords
- eccentric
- eccentric bushing
- eccentric sleeve
- shaft
- swing arm
- 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 - Lifetime
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Abstract
The utility model provides an adjustment device which can adjust the center distance of a swinging arm of a continuous mill. The adjustment device is directly embedded on the shell of a machine frame and comprises an eccentric sleeve and an eccentric shaft arranged on the eccentric sleeve. The eccentric sleeve is assembled on the eccentric shaft. The circumferences of the inner and the outer diameters of the eccentric sleeve are respectively provided with eleven indications cuts. The outer diameter of the eccentric sleeve is connected with a gear arranged on the rotating shaft of the machine frame, and the inner diameter of the eccentric sleeve matches the eccentric shaft. The shell of the machine frame and the outer diameter of the eccentric sleeve are fixed by positioning keys; when the rotating shaft and the eccentric sleeve are adjusted at right positions, the rotating shaft and the eccentric sleeve are locked by positioning keys; the eccentric shaft and the inner diameter of the eccentric sleeve are fixed by positioning keys; and a sign plate is arranged on the shell of the machine frame. The adjustment device has the beneficial effects that the adjustment device can adjust the center position of the swinging arm on the shell without dismounting the swinging arm and rollers; and the adjustment device prolongs the service life of the rolling mill and increases work efficiency as much as three times of a prior rolling mill.
Description
Technical field
The utility model relates to a kind of servicing unit of tandem mill, particularly a kind of tandem mill swing arm centre-to-centre spacing adjusting device.
Background technology
The PQF tandem mill is the milling train that adopts three rollers, its excellent service behaviour is that other milling trains are incomparable, but this tandem mill is the processing of three rollers, very inconvenient, its procedure of processing is: at first need to pull out three swing arms, dismantle three rolls, three rollers of machine tooling, again according to processing diameter shimming on the swing arm alignment pin, and then return and adorn three rolls, regain three swing arms.For the pipelining that automatic control is produced in enormous quantities efficiently, the processing of three rollers is bottlenecks of restriction streamline ordinary production.The workman drops into that number is many, and labour intensity is big, and production efficiency is low.
Summary of the invention
For solving the problem that exists in the said structure, the purpose of this utility model provides a kind of tandem mill swing arm centre-to-centre spacing adjusting device, do not pull out swing arm, do not tear roll open, on housing, directly can adjust the swing arm center, help improving the service life and the operating efficiency of milling train.
For achieving the above object, the technical solution adopted in the utility model provides a kind of tandem mill swing arm centre-to-centre spacing adjusting device, this adjusting device is directly embedded on the housing of frame, and be connected with the turning cylinder of frame, wherein: this adjusting device includes eccentric bushing 1 and the eccentric shaft 2 that is installed on the eccentric bushing 1, eccentric bushing 1 be assemblied in eccentric shaft 2 on, 11 indication otch are arranged respectively on the interior external diameter circumference of eccentric bushing 1, and indicate successively respectively and be labeled as A, B, C, D, E, F, G, H, I, L, M, described indication otch are distributed on the interior external diameter circumference of eccentric bushing 1 by certain angle; The external diameter of described eccentric bushing 1 is connected with gear on the turning cylinder of frame 3, the internal diameter of eccentric bushing 1 matches with eccentric shaft 2, fix with positioning key 5 between the external diameter of the housing of described frame and eccentric bushing 1, after turning cylinder 3 and eccentric bushing 1 are adjusted to the right place, lock with positioning key 5 between turning cylinder 3 and the eccentric bushing 1, eccentric shaft 2 and eccentric bushing 1 internal diameter are fixed with positioning key 4, are fixed with Sign Board 7 on described frame housing.
Effect of the present utility model is: use this adjusting device to realize not tearing open swing arm, do not torn roller open, directly can adjust the swing arm center on housing.Improve the service life of milling train, improved the operating efficiency of three times in former milling train simultaneously.
Description of drawings
Fig. 1 is the eccentric bushing structural representation of the utility model adjusting device;
Fig. 2 is the front view of eccentric shaft in this adjusting device;
Fig. 3 is the Sign Board of example with the 451-477 pass for this adjusting device;
Fig. 4 is the maximum nominal diameter M-M of example for the 451-477 pass;
Fig. 5 is the minimum nominal diameter A-A of example for the 451-477 pass;
Fig. 6 is the eccentric structural representation of adjusting;
Fig. 7, Fig. 8 adjust the embodiment schematic diagram for the utility model adjusting device.
1 eccentric bushing 2, eccentric shaft 3, turning cylinder
4,5, positioning key 6, gland 7, label
The specific embodiment
Reaching embodiment is in conjunction with the accompanying drawings described in detail tandem mill swing arm centre-to-centre spacing adjusting device of the present utility model.
Tandem mill swing arm centre-to-centre spacing adjusting device of the present utility model is the device that is used to replace the adjustment backing plate under the roll bearing box and avoids for the loaded vehicle roll swing arm is extracted out in the frame housing.Therefore,, just can avoid in the whole use of roll, the situation that swing arm, roll, bearing housing are constantly extracted out from the frame housing, reduction of service life by using this adjusting device.Roll is meant from maximum roll nominal diameter and is worked into the minimum nominal diameter of roll whole service life.
As shown in Figure 6, tandem mill swing arm centre-to-centre spacing adjusting device of the present utility model, this adjusting device is directly embedded on the frame housing, this adjusting device includes eccentric bushing 1 and the eccentric shaft 2 that is installed on the eccentric bushing 1, eccentric bushing 1 be assemblied in eccentric shaft 2 on, the external diameter of eccentric bushing 1 is connected with gear on the turning cylinder 3, internal diameter matches with eccentric shaft 2,11 indication otch are arranged respectively on the interior external diameter circumference of eccentric bushing 1, and indicate A successively, B, C, D, E, F, G, H, I, L, the mark of M, the indication otch is to be distributed on the interior external diameter circumference of eccentric bushing 1 by certain angle, concrete structure and size are as shown in Figure 1.
In order accurately to adjust the position, need simultaneously to lock with the positioning key 5 of round end in rotating shaft 3 and eccentric bushing 1 back of adjusting to the right place, except frame housing and eccentric bushing 1 external diameter were fixed with positioning key 5, eccentric shaft 2 and eccentric bushing 1 internal diameter also need be fixed with positioning key 4 after adjustment is finished.Fig. 2 is the front view of eccentric shaft 2.
Positioning key 4 must be marked as locking according to the indication otch on the interior external diameter circumference of eccentric bushing 1 indicated on the Sign Board 7 that is fixed on the frame housing with the position of positioning key 5, such as A-A, and B-B etc.Roll nominal diameter after writing Vehicle Processing on the Sign Board 7 and relevant paired gear, as A-A, B-B etc.
Maximum nominal diameter A-A of brief description and minimum nominal diameter position M-M.
To maximum nominal diameter :-6.25-6.25=-12.5mm, i.e. eccentric shaft 2 and eccentric bushing 1 equidirectional deflection;
To minimum nominal diameter :+6.25+6.25=12.5mm, i.e. eccentric shaft 2 and eccentric bushing 1 deflection in the other direction;
So whole radial deflection is: 12.5-(12.5)=25mm, that reflect on roller diameter so is exactly 25 * 2=50mm.In fact for each pass, the difference of maximum nominal diameter and minimum nominal diameter just in time is 50mm.Eccentric bushing 1 and eccentric shaft 2 all have 11 sign mouths, and to every pair of otch, the side-play amount of swing arm is 2.5mm, because 11 otch can correspondence go out 10 pairs of bias step, so the total drift amount of swing arm is 25mm.The adjustment in each step can not correspondingly fully accurate nominal diameter, but all within the error range that allows.
Embodiment:
First with the 451-477 pass is example, and this frame is carried out the roll loaded vehicle from the Tool Room that rolls off the production line after milling train is extracted out.The operative employee need carry out following operation:
1, the actual diameter of the current roll of affirmation is 1080.26mm;
2, can confirm that according to Sign Board on the frame housing 7 and actual roll current eccentric position is the G-G gear;
3, be that 1080.26mm is input among the CNC of numerical control operating system with actual roller diameter;
4, the operator determines the turning amount of roll according to the actual wear situation of roll, and promptly working depth is 4mm;
5, according to above-mentioned data, the dimension of roller after can determining to process is 1080.26-2 * 4=1072.26mm;
6, can confirm that according to the Sign Board on the frame housing 7 new eccentric position is the E-E gear;
7, new dimension of roller is input among the CNC of numerical control operating system;
8, the operator just can carry out machinery adjustment now, carries out turning processing then.
With Fig. 6 is that example is carried out eccentric adjustment process:
1, frame is hung on lathe inlet carriage or the track;
2, draw off and cover 6;
3, draw off positioning key 4 and positioning key 5;
4, twist the position of two eccentric bushings 1 of nut adjustment on the moving axis 3 by spanner, the effect of turning cylinder 3 remains unchanged the initial relative position of frame both ends of the surface eccentric bushing 1;
If 5 eccentric bushings 1 have been screwed to desired location, fill in positioning key 5 at once;
6, twisting eccentric shaft 2 with spanner adjusts;
If 7 eccentric shafts 2 have been screwed to desired location, fill in positioning key 4;
8, to all the other 2 roll repeating steps 3 to 7;
9, load onto and cover 6;
10, after adjustment finishes, can carry out turning and process.
Above-mentioned steps 4-5 and 6-7 can exchange.
Claims (1)
1, a kind of tandem mill swing arm centre-to-centre spacing adjusting device, this adjusting device is directly embedded on the housing of frame, and is connected with the turning cylinder of frame, it is characterized in that:
This adjusting device includes eccentric bushing (1) and is installed in eccentric shaft (2) on the eccentric bushing (1), eccentric bushing (1) be assemblied in eccentric shaft (2) on, 11 indication otch are arranged respectively on the interior external diameter circumference of eccentric bushing (1), and indicate successively respectively and be labeled as A, B, C, D, E, F, G, H, I, L, M, described indication otch are distributed on the interior external diameter circumference of eccentric bushing (1) by certain angle;
Gear on the turning cylinder (3) of the external diameter of described eccentric bushing (1) and frame is connected, the internal diameter of eccentric bushing (1) matches with eccentric shaft (2), fix with positioning key (5) between the external diameter of the housing of described frame and eccentric bushing (1), after turning cylinder (3) and eccentric bushing (1) are adjusted to the right place, lock with positioning key (5) between turning cylinder (3) and the eccentric bushing (1), eccentric shaft (2) and eccentric bushing (1) internal diameter are fixed with positioning key (4), are fixed with Sign Board (7) on described frame housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200736119U CN201147769Y (en) | 2008-01-07 | 2008-01-07 | Tandem mill swing arm center distance adjusting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200736119U CN201147769Y (en) | 2008-01-07 | 2008-01-07 | Tandem mill swing arm center distance adjusting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147769Y true CN201147769Y (en) | 2008-11-12 |
Family
ID=40115537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200736119U Expired - Lifetime CN201147769Y (en) | 2008-01-07 | 2008-01-07 | Tandem mill swing arm center distance adjusting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147769Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767573A (en) * | 2012-05-30 | 2012-11-07 | 杭州南方通达齿轮有限公司 | Adjustable eccentric sleeve |
| CN103861871A (en) * | 2012-12-12 | 2014-06-18 | 攀钢集团攀枝花钢钒有限公司 | Positioning method and system of transmission shaft of rolling mill |
-
2008
- 2008-01-07 CN CNU2008200736119U patent/CN201147769Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767573A (en) * | 2012-05-30 | 2012-11-07 | 杭州南方通达齿轮有限公司 | Adjustable eccentric sleeve |
| CN103861871A (en) * | 2012-12-12 | 2014-06-18 | 攀钢集团攀枝花钢钒有限公司 | Positioning method and system of transmission shaft of rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |
|
| CX01 | Expiry of patent term |