CN202576509U - Hearth roll with gear locking mechanism - Google Patents
Hearth roll with gear locking mechanism Download PDFInfo
- Publication number
- CN202576509U CN202576509U CN 201220173985 CN201220173985U CN202576509U CN 202576509 U CN202576509 U CN 202576509U CN 201220173985 CN201220173985 CN 201220173985 CN 201220173985 U CN201220173985 U CN 201220173985U CN 202576509 U CN202576509 U CN 202576509U
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- roller
- roll
- pin
- hole
- gear
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Abstract
The utility model relates to a hearth roll with a gear locking mechanism. The hearth roll is used for conveying strip steel plates in a continuous annealing furnace and comprises a roll sleeve and a roll core, wherein the roll sleeve is sleeved on the roll core; the roll core is formed by welding a roll barrel and a shaft head; a shaft lever is arranged in the shaft head; and a pin hole is formed in the upper edge of the roll sleeve in a direction which is perpendicular to but not intersected with the axis of the roll barrel. The hearth roll is characterized in that an inner hole is formed in the roll barrel in a direction which is perpendicular to but not intersected with the axis of the roll barrel, a guide sleeve is fixed in the inner hole, a hole of the guide sleeve is communicated with the pin hole, a sliding cylindrical pin with a rack is arranged in the hole of the guide sleeve, and a gear is arranged at one end of the shaft lever and is meshed with the rack of the sliding cylindrical pin. The roll sleeve and the roll core are connected with each other by a sliding pin controlled by a gear mechanism instead of threads, so that the hearth roll is convenient to assemble and disassemble, and is not easy to break down. The hearth roll has the advantages of simple structure, convenience in detachment and long service life.
Description
Technical field
The utility model relates to a kind of furnace bottom roll, specifically a kind of furnace bottom roll with the gear locking mechanism, and it is used for continuous annealing furnace conveying belt steel plate.
Background technology
Furnace bottom roll is mainly used in the continuous annealing furnace of producing siliconized plate, and it is made up of roller shell and roller core.Roller shell is made by the non-metallic material that graphite, pottery etc. adapt to furnace atmosphere, in general belt steel surface is not produced and scratches influence.At present, graphite carbon sleeve connects with still adopting pin connecting of roller core, and this pin connection mainly contains dual mode: the one, and banking pin draw bail, the 2nd, rectangular pin draw bail.The shortcoming of banking pin draw bail is: installs, dismounting is inconvenient, need spot welding between bolts and nuts during installation, and need with oxygen machining during dismounting or strike disconnectedly with hammer, consume a large amount of spare unit; When banking pin and roller core mating surface serious wear, each periodical repair large quantities of roller core Welding Repair are arranged, the roller core fracture defect also occurs; The carbon cover is unfixing axially with roller core, and roller core shaft thermotropism ratio of elongation carbon cover is much bigger, and the two axial gap increases, and is prone to produce impact, and causes band steel fluctuation of service.The advantage of rectangular pin draw bail be the running in no mechanical fault, roller shell and roller core axially have fixing; Shortcoming is that installation, dismounting are inconvenient, because the screw thread screw thread is killed, is prone to twist into two parts bolt when especially dismantling, and must get screw with special tool during periodical repair, delays a lot of repair times.These two kinds of connecting modes all have a common characteristic: adopted thread connection at high-temperature area exactly.Furnace bottom roll long-time running under high temperature, well-oxygenated environment, thread connection produces following problem:
1, bolts and nuts are prone to loose or dislocation, and necessary spot welding must destroy component during dismounting during installation.
2, owing to form iron scale, the stressed fragment that is broken into of iron scale when turning behind the screw thread surface oxidation
Stop up the screw thread gap, cause screw thread to be killed, must use special tool when getting screw.
3, because thread connection position in the stove of furnace bottom roll, the assembly work of roller shell and roller core must off-line completion stove outside, so during roll change, maintenance workload is big, the repair time is long, and service worker labour intensity is big, hot replacing danger, and energy medium consumption is big.
The problem that will solve now is exactly that screw between furnace high-temperature oxide regions roller shell and roller core is fixedly connected and replaces with a kind of locking latches, accomplishes that mechanical fault is few, roller shell is changed fast.
Summary of the invention
The purpose of the utility model is exactly the defective to existing furnace bottom roll; A kind of furnace bottom roll with the gear locking mechanism is provided; It connects the sliding pin that changes gear mechanism control into by thread connection that connects between roller shell and the roller core, makes things convenient for the assembling and the dismounting of furnace bottom roll, is not easy again to break down.
The utility model is to solve the problems of the technologies described above the technical scheme of being taked to be: it comprises roller shell and roller core, and roller shell is enclosed within on the roller core, and roller core is welded by roller and spindle nose; Axostylus axostyle is housed in the spindle nose; Roller shell upper edge and the disjoint direction of roller axis normal have pin-and-hole, it is characterized in that: on roller upper edge and the disjoint direction of roller axis normal, have endoporus, be fixed with orienting sleeve in the endoporus; The hole and the pin-and-hole of orienting sleeve communicate; Be provided with the sliding cylinder pin of band tooth bar in the hole of orienting sleeve, an end of axostylus axostyle is provided with gear, the tooth bar engagement of gear and sliding cylinder pin.
The utility model technical scheme preferably is: on the roller of furnace bottom roll back side, radially be fixed with tumbler pin, have open slot on the roller shell and tumbler pin is connected.Described spindle nose tail end end face is provided with block, and at the spindle nose tail end, described block is provided with the trip bolt that the limiting gear axle rotates to block through screw retention.Described roller shell is provided with the shaft shoulder and locating slot.The shaft shoulder on the roller shell is as the C.E. of when dismounting grasping mechanism spring chuck, the C.E. when locating slot is the pilot hole that cooperates with backstay when being used to install and promotion.
The beneficial effect of the utility model is:
The one, just each moves once gear mechanism when dismounting and assembling, is in relative static conditions At All Other Times, does not have too many kinematic pair wearing and tearing, long service life.
The 2nd, the tumbler pin on the back side roller plays the transmission torsional interaction, and the pin that is slidingly connected of active side plays the axial location effect.Axial force is very little, and part dimension does not need very big, and mechanism structure is compact, installation, convenient disassembly.
The 3rd, the fit-up gap is little to the stationarity influence of motion, certain fit-up gap is arranged at low temperatures, but at high temperature receive the influence of structure and parts material characteristic, and the gap can reduce.Thermal expansion amount like graphite carbon sleeve is just little a lot of than high temperature steel thermal expansion amount.
The utility model is very convenient in factory's site assembly, under the situation of only dismantling the changing side chock, just can apace roller shell be released from roller core, loads onto new roller shell then.Stop time is short, is beneficial to continuous production process production, also reduces energy loss.
Description of drawings
Fig. 1 is the structural representation of the utility model changing side part.
Fig. 2 is the cross section structure synoptic diagram of the utility model changing side part.
Fig. 3 is the structural representation of the utility model back side part.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described:
Like Fig. 1, shown in Figure 2, the utility model comprises roller shell 1 and roller core, and roller shell 1 is enclosed within on the roller core; Roller core is welded by roller 2 and spindle nose 6, and axostylus axostyle 5 is housed in the spindle nose 6, and roller shell 1 upper edge and the disjoint direction of roller axis normal have pin-and-hole 10; On roller 2 upper edges and the disjoint direction of roller axis normal, have endoporus 11; Endoporus is fixed with orienting sleeve 3 for 11 li, and the hole of orienting sleeve 3 and pin-and-hole 10 communicate, and is provided with the sliding cylinder pin 4 of band tooth bar in the hole of orienting sleeve 3; One end of axostylus axostyle 5 is provided with gear 12, and gear 12 meshes with the tooth bar 13 of sliding cylinder pin 4.As shown in Figure 3, on the roller 2 of furnace bottom roll back side, radially be fixed with tumbler pin 9, on roller 2, open slot 1c and tumbler pin 9 that roller shell 1 is provided with are connected tumbler pin 9 through screw retention.Described spindle nose 6 tail end end faces are provided with block 7, and at spindle nose 6 tail ends, described block 7 is provided with the trip bolt 8 that the limiting gear axle rotates to block 7 through screw retention, and trip bolt 8 plays locking axostylus axostyle 5.Described roller shell 1 is provided with shaft shoulder 1a and locating slot 1b.Shaft shoulder 1a on the roller shell is as the C.E. of when dismounting grasping mechanism spring chuck, the C.E. when locating slot 1b is the pilot hole that cooperates with backstay when being used to install and promotion.
The assembling of roller core:
Two ends spindle nose that processes and roller 2 are welded; After the roller core precision work, the processing and the endoporus of axis normal on roller 2, and orienting sleeve 3 is fixed in endoporus.Tooth bar straight pin 4 is put into orienting sleeve 3, gear shaft 5 is put into spindle nose 6, fixed stop 7.After the adjustment position of engagement and the travel position, fixing limited block on orienting sleeve 3 is joined on the end face of gear shaft 5 and block 7 and is bored the lock screw hole, installation trip bolt 8 after the tapping.The roller core assembled.
The assembling of roller shell and roller core:
On the roller 2 of back side fixedly behind the tumbler pin 9, put roller shell 1 from changing side, support last tumbler pin 9 until open slot 1c.Turning gear wheel shaft 5 moves tooth bar straight pin 4, and after straight pin 4 got into the pin-and-hole of roller shells 1, roller shell 1 was with on roller core connects, lock trip bolt 8 after, assembled.
During dismounting roller shell 1, rotate trip bolt 8 and make it the release lock tieholen; Turning gear wheel shaft 5 moves tooth bar straight pin 4, and straight pin 4 breaks away from roller shell 1 after withdrawing from the pin-and-hole of roller shell 1, and roller shell 1 is thrown off with roller core.Pull out roller shell 1 from roller core then, dismounting finishes.
Claims (4)
1. furnace bottom roll with the gear locking mechanism, it comprises roller shell and roller core, roller shell is enclosed within on the roller core; Roller core is welded by roller and spindle nose, and axostylus axostyle is housed in the spindle nose, and roller shell upper edge and the disjoint direction of roller axis normal have pin-and-hole; It is characterized in that: on roller upper edge and the disjoint direction of roller axis normal, have endoporus; Be fixed with orienting sleeve in the endoporus, the hole and the pin-and-hole of orienting sleeve communicate, and are provided with the sliding cylinder pin of band tooth bar in the hole of orienting sleeve; One end of axostylus axostyle is provided with gear, the tooth bar engagement of gear and sliding cylinder pin.
2. a kind of furnace bottom roll with the gear locking mechanism according to claim 1 is characterized in that: on the roller of furnace bottom roll back side, radially be fixed with tumbler pin, have open slot on the roller shell and tumbler pin is connected.
3. a kind of furnace bottom roll with the gear locking mechanism according to claim 1 is characterized in that: described spindle nose tail end end face is provided with block, and at the spindle nose tail end, described block is provided with the trip bolt that the limiting gear axle rotates to block through screw retention.
4. a kind of furnace bottom roll with the gear locking mechanism according to claim 1, it is characterized in that: described roller shell is provided with the shaft shoulder and locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173985 CN202576509U (en) | 2012-04-23 | 2012-04-23 | Hearth roll with gear locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173985 CN202576509U (en) | 2012-04-23 | 2012-04-23 | Hearth roll with gear locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576509U true CN202576509U (en) | 2012-12-05 |
Family
ID=47245939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173985 Expired - Fee Related CN202576509U (en) | 2012-04-23 | 2012-04-23 | Hearth roll with gear locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202576509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225011A (en) * | 2013-04-24 | 2013-07-31 | 浙江久立特材科技股份有限公司 | Solid melting annealing furnace hearth roll and manufacture method thereof |
-
2012
- 2012-04-23 CN CN 201220173985 patent/CN202576509U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225011A (en) * | 2013-04-24 | 2013-07-31 | 浙江久立特材科技股份有限公司 | Solid melting annealing furnace hearth roll and manufacture method thereof |
| CN103225011B (en) * | 2013-04-24 | 2015-04-29 | 浙江久立特材科技股份有限公司 | Solid melting annealing furnace hearth roll and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20170423 |