CN201779973U - Split type hydraulic catch wheel device of rotary kiln - Google Patents
Split type hydraulic catch wheel device of rotary kiln Download PDFInfo
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- CN201779973U CN201779973U CN2010201872550U CN201020187255U CN201779973U CN 201779973 U CN201779973 U CN 201779973U CN 2010201872550 U CN2010201872550 U CN 2010201872550U CN 201020187255 U CN201020187255 U CN 201020187255U CN 201779973 U CN201779973 U CN 201779973U
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- gear wheel
- rotary kiln
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- wheel device
- wheel
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Abstract
A split type hydraulic catch wheel device of a rotary kiln includes a catch wheel and a shaft thereof. The utility model is characterized in that the catch wheel and the shaft of the split type hydraulic catch wheel device are independent from each other as unique bodies. The thickness of the catch wheel is 110mm to 145mm. The utility model has the advantages as follows: the catch wheel and the shaft are separated and manufactured through forgings respectively, the metallographic structure of each forging is tiny, the quality of the split type hydraulic catch wheel device is stable and the mechanical performance of the split type hydraulic catch wheel device is good; moreover, the thickness of the catch wheel is increased, and the mechanical strength, the torsion resistance strength and the anti-shearing strength of the catch wheel are enhanced.
Description
Technical field
The utility model relates to the pitch coke calciner plant, and particularly, the utility model relates to a kind of split structural formula rotary kiln hydraulic blocking wheel device that a kind of pitch coke calciner plant uses.
Background technology
The pitch coke calciner plant use rotary kiln of field of metallurgy and chemical engineering (
2750*52000), described rotary kiln is provided with shelves wheel and hydraulic system thereof.
Cylinder of rotary kiln tilt (52/1000) occasion is installed, produce axial force by deadweight (about 300 tons of kiln body empty-weight) and frictional force.This axial force can produce uneven wearing and tearing to support roller and the wheel band working surface that width does not wait.In order to make described wearing and tearing even, be provided with gear wheel usually.The effect of rotary kiln hydraulic blocking wheel device is: play the effect of control kiln cylinder body axial float, thus, not only can bear kiln body sliding force, also can promote its kiln body and move up, thereby can make wheel band and support roller uniform wear on full duration.
Usually, hydraulic blocking wheel is provided with a following gear wheel, sets up oil pressure by oil pump, and hydraulic oil acts on oil cylinder inner carrier and the piston rod, promotes the gear wheel rolling friction thus, makes the kiln body up, guarantees wheel band and support roller uniform wear on full duration.In addition, hydraulic blocking wheel is provided with up and down two limit switches, and when the kiln body arrived upper limit position, limit switch sent signal, and oil pump quits work automatically, and piston rod is return, and the axial force that the kiln body produces by deadweight and frictional force glides; When the kiln body arrived to the lower position, limit switch sent signal, and oil pump starts work automatically, and it is up to promote the kiln body, goes round and begins again.(see figure 1)
The catch wheel device of Shi Yonging was made up of following parts: gear wheel (comprising axle) 17, suspension bracket 2-1, seal cover 3,4, bolt 4, packing ring 5 usually in the past, gear wheel seat 6, bearing 7, pipe joint 8, axle sleeve 9, bearing 10, bearing cap 11, hubcap 12, bolt 13, pad 14, oil sealing 15 (Fig. 3).
The catch wheel device of Shi Yonging in the past: gear wheel and axle (among Fig. 3 17) be as one, cast molding, and the metallographic structure of foundry goods is thick, and foundry goods easily produces defectives such as quality instability.2, the thickness of gear wheel is narrow, and gear wheel is less with the contact area of wheel band, and twisting resistance intensity is relatively poor.3, gear wheel easy fracture, service life is short, and the general 1--3 of exhaustion run month, in case the gear wheel fracture can cause the serious device damage of rotary kiln.
The major defect of the catch wheel device existence of in the past using is:
1, gear wheel and axle after the cast molding, are machined to the figure paper size as one.Material ZG42CrMo.In the gear wheel course of work, the gear wheel fracture often takes place, the general 1--3 of exhaustion run month, service life was short.Cause the rotary kiln downslide and break down badly damaged equipment, influence production operation continuously.
2, the thickness of gear wheel is narrow, thickness 110mm, and gear wheel is less with the contact area of wheel band, makes that gear wheel working face force-bearing situation is not good, causes mechanical strength to rupture inadequately.3, casting quality instability.
The utility model content
Deficiency at the existing wheel stopping structure existence of using, the purpose of this utility model is: a kind of split structural formula rotary kiln hydraulic blocking wheel device is provided, the gear wheel of described split structural formula rotary kiln hydraulic blocking wheel device and axle split, the stressed force-bearing situation of gear wheel working face obviously improves, broaden with the contact area of wheel band, mechanical strength increases, and twisting resistance intensity improves.
Split structural formula rotary kiln hydraulic blocking wheel device technique scheme of the present utility model is as follows:
A kind of split structural formula rotary kiln hydraulic blocking wheel device, comprise: gear wheel, the gear wheel axle, the seal cover of gear wheel one end, the gear wheel seat of the bearing of gear wheel axle and this bearing periphery, the bearing cap of bearing one end is characterized in that, the gear wheel of described split structural formula rotary kiln hydraulic blocking wheel device and the axle one of respectively doing for oneself.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that the thickness of described split structural formula rotary kiln hydraulic blocking wheel device gear wheel is 110-145mm.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that the thickness of described split structural formula rotary kiln hydraulic blocking wheel device gear wheel is 125-135mm.
The thickness of described gear wheel refers to the thickness of gear wheel above-below direction among Fig. 2.The thickness that increases gear wheel is to decide according to the width of wheel band, to increase both contacts area as far as possible.
The thickness of described gear wheel can be decided (can according to the load of kiln body) by Force Calculation, selects the load greater than the kiln body as far as possible.
Thus, split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, the thickness of its gear wheel increases, and makes the stressed force-bearing situation of gear wheel working face obviously improve, and the contact area of being with wheel broadens, and mechanical strength increases, and twisting resistance intensity improves.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that the CrMo forging is all adopted in described split structural formula rotary kiln hydraulic blocking wheel assembly axis and gear wheel split.
Thus, the metallographic structure of split structural formula rotary kiln hydraulic blocking wheel device materials of the present utility model improves, and improves back gear wheel and shaft mechanical performance and obviously improves than before improving.The metallographic structure of material improves, and improves back gear wheel and shaft mechanical performance and obviously improves than before improving.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that described axle and gear wheel adopt interference fit.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that boring and mantle fiber between the center line of described axle and gear wheel are equipped with uniform pin.
Thus, shear strength improves.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, it is characterized in that, between the center line of described axle and gear wheel, bore four holes and mantle fiber, be equipped with four pins in uniform way.
Thus, make shear strength further improve.
According to the utility model split structural formula rotary kiln hydraulic blocking wheel device, forging is adopted in gear wheel (1 among Fig. 2) and axle (2 among Fig. 2) split, makes respectively, and the forging metallographic structure is tiny, steady quality, good mechanical property.The thickness broadening 10mm of gear wheel, mechanical strength increases, and twisting resistance intensity improves.Increase pin, shear strength improves.Gear wheel and axle adopt interference fit (K7/U7), and twisting resistance intensity improves.
Description of drawings
Fig. 1 is the rotary kiln sketch.
Fig. 2 is for improving back catch wheel device structure.
Fig. 3 is catch wheel device structure before improving.
Among the figure, 1 is gear wheel, and 2 is the gear wheel axle, and 2-1 is a suspension bracket, 3 is seal cover, and 4 is bolt, and 5 is packing ring, and 6 is the gear wheel seat, 7 is bearing, and 8 is pipe joint, and 9 is axle sleeve, and 10 is bearing, 11 is bearing cap, and 12 is hubcap, and 13 is bolt, and 14 is pad, 15 is pin, and 16 is oil sealing, and 17 are integral type gear wheel (comprising axle), 18 is oil cylinder, and 19 is oil pump, and 20 is rotary kiln.
The specific embodiment
Below, with reference to accompanying drawing, specify split structural formula rotary kiln hydraulic blocking wheel device of the present utility model with embodiment.
Make a kind of split structural formula rotary kiln hydraulic blocking wheel device, comprising: gear wheel, gear wheel axle, the seal cover of gear wheel one end, bearing, the gear wheel seat of bearing periphery, the bearing cap of bearing one end etc.
Make the split wheel stopping structure: 1, gear wheel 1 and axle 2 are made respectively, all adopt forging, gear wheel 1 material 42CrMo, axle 2 material 35CrMo.After both are machined to the drawing dimensional requirement, adopt hot pressing mode, gear wheel is mounted on the shaft shoulder, adopt interference fit (K7/U7).
2, gear wheel 1 thickness increases 10mm, and 110mm increases to 125mm from thickness, forges and mechanical process.
3, set up four holes, mantle fiber in the hole is equipped with four pins 15, and it is uniform to make 16*30, material 35# steel.
Concrete implementation step: 1, gear wheel 1: select the coarse fodder of material 42CrMo for use, after forging, the roughing, heat treatment is refined to the figure paper size again.2, axle 2: select the coarse fodder of material 35CrMo for use, after forging, the roughing, heat treatment is refined to the figure paper size again.3, adopt hot pressing mode, gear wheel is mounted on the shaft shoulder.4, between the center line of axle and gear wheel, bore four holes and mantle fiber.5, select material 35# steel for use, processing pin 15, it is uniform to make 16*30.6, be installed to four pins in the pin sky and tighten.
Embodiment 2
Except gear wheel thickness increases to the 145mm, other make split structural formula rotary kiln hydraulic blocking wheel device of the present utility model as embodiment 1.
According to present embodiment, forging is adopted in gear wheel and axle split, makes respectively, and the forging metallographic structure is tiny, steady quality, good mechanical property.The thickness broadening 10mm of gear wheel, mechanical strength increases, and twisting resistance intensity improves.Increase pin, shear strength improves.Gear wheel and axle adopt interference fit (K7/U7), and twisting resistance intensity improves.
According to split structural formula rotary kiln hydraulic blocking wheel device of the present utility model, through using gear wheel fracture defect, long service life do not take place.Guaranteed to produce operation continuously, equipment operation condition is good.
Claims (7)
1. split structural formula rotary kiln hydraulic blocking wheel device, comprise: gear wheel, the gear wheel axle, the seal cover of gear wheel one end, the gear wheel seat of the bearing of gear wheel axle and this bearing periphery, the bearing cap of bearing one end is characterized in that, the gear wheel of described split structural formula catch wheel device becomes one separately separately with axle.
2. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 1 is characterized in that the thickness of described split structural formula catch wheel device gear wheel is 110-145mm.
3. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 1 is characterized in that the thickness of described split structural formula catch wheel device gear wheel is 125mm-135mm.
4. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 1 is characterized in that the CrMo forging is all adopted in described split structural formula catch wheel device axle and gear wheel split.
5. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 1 is characterized in that, described axle and gear wheel adopt interference fit.
6. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 1 is characterized in that, between the center line of described axle and gear wheel, boring and mantle fiber are equipped with uniform pin.
7. split structural formula rotary kiln hydraulic blocking wheel device as claimed in claim 4 is characterized in that, between the center line of described axle and gear wheel, bores four holes and mantle fiber, is equipped with four uniform pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201872550U CN201779973U (en) | 2010-05-07 | 2010-05-07 | Split type hydraulic catch wheel device of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201872550U CN201779973U (en) | 2010-05-07 | 2010-05-07 | Split type hydraulic catch wheel device of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779973U true CN201779973U (en) | 2011-03-30 |
Family
ID=43793184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201872550U Expired - Fee Related CN201779973U (en) | 2010-05-07 | 2010-05-07 | Split type hydraulic catch wheel device of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779973U (en) |
-
2010
- 2010-05-07 CN CN2010201872550U patent/CN201779973U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20110330 Termination date: 20180507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |