CN202779178U - Rack roller shaft sleeve - Google Patents
Rack roller shaft sleeve Download PDFInfo
- Publication number
- CN202779178U CN202779178U CN201220428603.8U CN201220428603U CN202779178U CN 202779178 U CN202779178 U CN 202779178U CN 201220428603 U CN201220428603 U CN 201220428603U CN 202779178 U CN202779178 U CN 202779178U
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- CN
- China
- Prior art keywords
- hydraulic
- axle sleeve
- hydraulic pipe
- expansion
- screw
- 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 discloses a rack roller shaft sleeve. An expansion and retraction ring is embedded in the inner wall of the shaft sleeve; a hydraulic pipe is arranged in the expansion and retraction ring; the hydraulic pipe is communicated to a hydraulic pipe joint; the hydraulic pipe joint extends out of the expansion and retraction ring; the expansion and retraction ring is provided with an opening and closing screw; and the opening and closing screw is embedded into the hydraulic pipe. When the opening and closing screw is loosened, the end part of the opening and closing screw exits the hydraulic pipe and the hydraulic pipe is opened; and when the opening and closing screw is screwed down, the end part of the opening and closing screw extends into the hydraulic pipe to cut off the hydraulic pipe and the hydraulic pipe is sealed. When hydraulic oil is injected into the hydraulic pipe through the hydraulic pipe joint, the expansion and retraction ring is expanded; and when the hydraulic oil in the hydraulic pipe is drained through the hydraulic pipe joint, the expansion and retraction ring is shortened. According to the rack roller shaft sleeve disclosed by the utility model, an original expansion screw design is omitted and the fastening on the shaft sleeve is implemented by the expansion and retraction ring controlled by the hydraulic pressure. After the hydraulic oil is injected, the expansion and retraction ring is expanded to fasten the shaft sleeve on a flat head of a rack roller; and after the hydraulic oil is drained, the expansion and retraction ring is shortened to disassemble the shaft sleeve from the flat head of the rack roller.
Description
Technical field
The utility model relates to steel rolling equipment, relates in particular to a kind of quick-replaceable breast roll axle sleeve of being convenient to.
Background technology
Breast roll is the special roller-way that is positioned at the roughing mill gateway, about the high 5mm of its common roller-way of roller-way face aspect ratio.The purpose that breast roll is set is because slab is climbing when entering milling train nips, the thrust that breast roll can increase slab when nipping.First roller-way of milling train outlet in addition owing to breast roll, the powerful impulsive force in the time of therefore must bearing the slab discount.
The running of breast roll is by driving by a motor.As shown in Figure 1, Fig. 1 has disclosed the structure chart of prior art mid frame roll assembly.Motor 101 is connected with an end of spindle 102, and axle sleeve 103 is installed on the breast roll homalocephalus 104, and axle sleeve 103 is connected with the other end of spindle 102.Motor 101 drives spindle 102 and rotates when rotating, spindle 102 drives breast roll 105 runnings by axle sleeve 103 again.
In the prior art, as shown in Figures 2 and 3, Fig. 2 has disclosed the enlarged drawing of the A section in the breast roll assembly shown in Figure 1, shows the structure of prior art bottom bracket axle.Fig. 3 has disclosed the sectional view of the axle sleeve that uses in the prior art.Axle sleeve 103 is installed on the breast roll homalocephalus 104 in such a way: axle sleeve 103 is put on the breast roll homalocephalus 104, then be screwed into one by one setscrew 106, the inwall on the axle sleeve 103 just is inflated behind screw 106 extrusion expansions being enclosed within on the breast roll homalocephalus 104 tightly.
The fault that connecting axle ruptures in use can occur owing to transship in breast roll.When changing connecting axle, axle sleeve must be taken off from the breast roll homalocephalus.Must be the same when installing in taking off the process of axle sleeve, at first must pull down all setscrews, but situation about can't take out because of after the setscrew distortion often can occur.Can extremely can't take off because axle sleeve rises again after taking out setscrew, must be through beaing or the process such as hydraulic pushing, it is very consuming time to take off axle sleeve, causes prolongation fault time of changing the breast roll spindle.In the production scene, in order to shorten fault time, the operating personnel usually adopts destructive method to take off axle sleeve: directly axle sleeve is cut open and taken off, cause spare parts consumption to increase.
The utility model content
The utility model is intended to propose a kind ofly can realize quick-replaceable breast roll axle sleeve.
According to an embodiment of the present utility model, a kind of breast roll axle sleeve is proposed, embedding on the inwall of axle sleeve has the harmomegathus ring, in the harmomegathus ring hydraulic tube is arranged, hydraulic tube is communicated to hydraulic fitting, and hydraulic fitting extends to outside the harmomegathus ring, be provided with the switching screw on the harmomegathus ring, open and close screw and embed in the hydraulic tube.
In one embodiment, open and close screw and unclamp, the end that opens and closes screw is withdrawed from outside the hydraulic tube, and hydraulic tube is open-minded, opens and closes screw-driving, and cutting-off liquid pressure pipe in the hydraulic tube is stretched in the end that opens and closes screw, the hydraulic tube sealing.
In one embodiment, by hydraulic fitting injection liquid force feed in the hydraulic tube, the harmomegathus ring expands, and emits hydraulic oil in the hydraulic tube by hydraulic fitting, and the harmomegathus ring dwindles.
Breast roll axle sleeve of the present utility model has been cancelled the design of original setscrew, changes by the harmomegathus ring of hydraulic control to realize fastening to axle sleeve.The harmomegathus ring expands axle sleeve is fastened on the breast roll homalocephalus behind the input hydraulic pressure oil, releases hydraulic oil harmomegathus ring and dwindles that axle sleeve is unloaded from the breast roll homalocephalus.
Description of drawings
Fig. 1 has disclosed the structure chart of prior art mid frame roll assembly.
Fig. 2 has disclosed the enlarged drawing of the A section in the breast roll assembly shown in Figure 1, shows the structure of prior art bottom bracket axle.
Fig. 3 has disclosed the sectional view of the axle sleeve that uses in the prior art.
Fig. 4 has disclosed the structure according to the breast roll axle sleeve of an embodiment of the present utility model.
Fig. 5 has disclosed the enlarged drawing of B section in the breast roll axle sleeve shown in Figure 4.
The specific embodiment
With reference to figure 4 and shown in Figure 5, Fig. 4 has disclosed the structure according to the breast roll axle sleeve of an embodiment of the present utility model.Fig. 5 has disclosed the enlarged drawing of B section in the breast roll axle sleeve shown in Figure 4.The utility model has disclosed a kind of breast roll axle sleeve, embed on the inwall of axle sleeve 103 harmomegathus ring 107 is arranged, hydraulic tube 110 is arranged in the harmomegathus ring 107, hydraulic tube 110 is communicated to hydraulic fitting 109, hydraulic fitting 109 extends to outside the harmomegathus ring 107, be provided with on the harmomegathus ring 107 and open and close screw 108, open and close screw 108 and embed in the hydraulic tube 110.Open and close screw 108 and unclamp, the end that opens and closes screw is withdrawed from outside the hydraulic tube 110, and hydraulic tube 110 is open-minded, opens and closes screw 108 and tightens, and cutting-off liquid pressure pipe in the hydraulic tube 110 is stretched in the end that opens and closes screw, hydraulic tube 110 sealings.Open and close screw 108 and make in the situation that hydraulic tube 110 opens unclamping, can be by hydraulic fitting 109 injection liquid force feed in the hydraulic tube 110, hydraulic oil is so that 107 expansions of harmomegathus ring, thereby axle sleeve 103 is fastened on the breast roll homalocephalus 104, finish to tighten after fastening opening and closing screw 108 with confining liquid pressure pipe 110, keep the tightening state of axle sleeve 103.Again unclamp and open and close screw 108 open hydraulic tubes 110, can emit hydraulic oil in the hydraulic tube 110 by hydraulic fitting 109, harmomegathus ring 107 dwindles, and axle sleeve 103 can be pulled down from breast roll homalocephalus 104.Breast roll axle sleeve of the present utility model has replaced original setscrew with hydraulically powered harmomegathus ring, so that dismounting is convenient.
The use procedure of breast roll axle sleeve of the present utility model is as follows: in the time of axle sleeve being installed on the breast roll homalocephalus, at first axle sleeve is set on the breast roll homalocephalus, unscrew open and close screw can input hydraulic pressure oil to the harmomegathus ring, then connect the hydraulic pressure input pipe at hydraulic fitting, hydraulic pressure is transfused in the harmomegathus ring after opening hydraulic pressure input pipe switch, the harmomegathus ring begins spreading, until axle sleeve tightly embraced the breast roll homalocephalus, and then tighten the switching screw, this moment, hydraulic oil was closed in the harmomegathus ring, removed at last the hydraulic pressure input pipe.After being connected with spindle, axle sleeve just can turn round.When pulling down axle sleeve, unscrew open and close screw after, the harmomegathus ring dwindled after hydraulic oil flowed out the harmomegathus ring, axle sleeve and breast roll homalocephalus unclamp, axle sleeve can take out replacing easily.
Breast roll axle sleeve of the present utility model has been cancelled the design of original setscrew, changes by the harmomegathus ring of hydraulic control to realize fastening to axle sleeve.The harmomegathus ring expands axle sleeve is fastened on the breast roll homalocephalus behind the input hydraulic pressure oil, releases hydraulic oil harmomegathus ring and dwindles that axle sleeve is unloaded from the breast roll homalocephalus.After adopting this axle sleeve, when the faults such as the spindle fracture occurs need to be changed axle sleeve, because installation and removal is all very convenient, can greatly shorten fault handling time, increase work efficiency.Owing to stopped destructive dismounting, therefore reduce the consumption of spare part in addition, reduced the spare parts cost of enterprise.
Claims (3)
1. a breast roll axle sleeve is characterized in that, embedding on the inwall of axle sleeve has the harmomegathus ring, in the harmomegathus ring hydraulic tube is arranged, hydraulic tube is communicated to hydraulic fitting, and hydraulic fitting extends to outside the harmomegathus ring, be provided with the switching screw on the harmomegathus ring, open and close screw and embed in the hydraulic tube.
2. breast roll axle sleeve as claimed in claim 1 is characterized in that, opens and closes screw and unclamps, and the end that opens and closes screw is withdrawed from outside the hydraulic tube, and hydraulic tube is open-minded, opens and closes screw-driving, and cutting-off liquid pressure pipe in the hydraulic tube is stretched in the end that opens and closes screw, the hydraulic tube sealing.
3. breast roll axle sleeve as claimed in claim 2 is characterized in that, by hydraulic fitting injection liquid force feed in the hydraulic tube, the harmomegathus ring expands, and emits hydraulic oil in the hydraulic tube by hydraulic fitting, and the harmomegathus ring dwindles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428603.8U CN202779178U (en) | 2012-08-27 | 2012-08-27 | Rack roller shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220428603.8U CN202779178U (en) | 2012-08-27 | 2012-08-27 | Rack roller shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779178U true CN202779178U (en) | 2013-03-13 |
Family
ID=47806520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220428603.8U Expired - Lifetime CN202779178U (en) | 2012-08-27 | 2012-08-27 | Rack roller shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779178U (en) |
-
2012
- 2012-08-27 CN CN201220428603.8U patent/CN202779178U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |