CN204829957U - Guide pulley in bearing is external - Google Patents
Guide pulley in bearing is external Download PDFInfo
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- CN204829957U CN204829957U CN201520481374.XU CN201520481374U CN204829957U CN 204829957 U CN204829957 U CN 204829957U CN 201520481374 U CN201520481374 U CN 201520481374U CN 204829957 U CN204829957 U CN 204829957U
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- main shaft
- wheel bracket
- bearing block
- guide pulley
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Abstract
The utility model relates to a guide pulley in bearing is external, establish at main epaxial bearing frame, wheel bracket and wheel body including overlapping in proper order, the one end of bearing frame is equipped with outer end cover, the other end of bearing frame and the one end fixed connection of wheel bracket, and the other end of wheel bracket and the one end fixed connection of wheel body, the other end of wheel body is equipped with inner end cap, and the casing cover is in the outside of bearing frame with the junction of wheel bracket, the cover has the bearing between main shaft and the bearing frame, the one end of main shaft is located bearing frame, the other end and the inner end cap fixed connection of main shaft, junction between wheel body and the wheel bracket, between wheel bracket and the main shaft, between wheel bracket and the bearing frame all is equipped with sealing device. The utility model discloses a rational design moves bearing and wheel body separation to the dragveyer outside with the bearing to keep apart with the pulp water, improved the life of bearing by a wide margin, and adopted multiple sealed form to combine together, have good sealed effect.
Description
Technical field
The utility model relates to a kind of essential element of submerged slag conveyor, particularly relates to a kind of bearing external inner guide pulley.
Background technology
The submerged slag conveyor equipment in current domestic coal-powder boiler power plant all uses inner guide pulley assembly (some power plant is immersion wheel or directive wheel under water), it is one of vitals of submerged slag conveyor, because of the particularity of the position residing for it and working environment, the whether good normal operation directly affecting whole submerged slag conveyor of operation conditions of inner guide pulley, even directly affects the normal operation of boiler.
Inner guide pulley great majority now on current market are bearing built-in structures, and be introduced for two kinds of bearing built-in inner guide pulleys conventional in prior art, its concrete profile, structure and seal form are as depicted in figs. 1 and 2.
In use, the bearing 1 of bearing built-in inner guide pulley and the wheel body 2 of bearing built-in inner guide pulley are all immersed in pulp water, are sealed by " single (many) grooves labyrinth+outside framework oil seal+shaft seal water (oil) ".Following drawback is there is in this kind of structure in running:
1, because bearing built-in inner guide pulley is all immersed in pulp water, directly cannot judge that outside dragveyer whether the wheel body ruuning situation of bearing built-in inner guide pulley is normal;
2 once the sealing of bearing built-in inner guide pulley is destroyed, pulp water just can enter bearing chamber, cause the bearing damage of bearing built-in inner guide pulley, the wheel body of bearing built-in inner guide pulley stops operating, the motion mode of the wheel body of dragveyer chain and bearing built-in inner guide pulley becomes sliding friction by original rolling friction, exacerbate the wearing and tearing of chain, shortening chains service life.
Utility model content
In view of the problem existing for prior art, the utility model provides a kind of bearing external inner guide pulley, bearing is separated with wheel body, bearing is moved to outside dragveyer, and isolate with pulp water, significantly improve the service life of bearing, and have employed multiple seal form and combine, there is good sealing effectiveness.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
A kind of bearing external inner guide pulley, comprises the bearing block be set in successively on main shaft, wheel bracket and wheel body; One end of described bearing block is provided with outer end cap, the other end of described bearing block is fixedly connected with one end of wheel bracket, the other end of described wheel bracket is fixedly connected with one end of wheel body, and the other end of described wheel body is provided with inner end cap, and casing is enclosed within the outside of the junction of bearing block and wheel bracket; Overlap between described main shaft and described bearing block and have bearing, one end of described main shaft is positioned at bearing block, and the other end of described main shaft is fixedly connected with inner end cap; Junction between described wheel body and wheel bracket, between described wheel bracket and main shaft, between described wheel bracket and bearing block is equipped with sealing device.
The beneficial effects of the utility model are: bearing external inner guide pulley described in the utility model, is separated bearing with wheel body, is moved to outside dragveyer by bearing, and isolates with pulp water, significantly improves the service life of bearing.Even if the sealing device of bearing external inner guide pulley is destroyed, pulp water also can not flow into bearing block inside (i.e. bearing chamber), thus protection bearing is not by the abrasion of pulp water.This version is all more improved and is improved in sealing reliability and lubrication facilitate two, can improve reliability and the service life of work dramatically, whether its shaft seal is damaged, whether normal rotation is easy to monitor wheel shaft more.
On the basis of technique scheme, the utility model can also do following improvement.
Further, the inside of described bearing block is provided with two cover bearings, and described two cover bearings are enclosed within outside main shaft respectively.
Further, described two cover bearings are respectively aligning roller bearing and cylindrical roller bearing, and described cylindrical roller bearing is positioned at the one end near outer end cap.
Further, be provided with primary seal between described wheel body and wheel bracket, described primary seal is mechanical seal structure.
The beneficial effect of above-mentioned further scheme is adopted to be: effectively can be sealed between wheel body and wheel bracket by primary seal, prevent pulp water from entering the inside of wheel bracket.
Further, be provided with can at wheel bracket near the side of described bearing block, described can is enclosed within main shaft, is provided with secondary seal, three grades of sealings and level Four sealing between can and main shaft; Described secondary seal is packing seal, and described three grades are sealed into grease seal; Described level Four is sealed into packing seal.
Further, the joint face of described wheel bracket and bearing block whitewashes lead-tight.
Further, the junction of described outer end cap and main shaft is sealed by dust seal.
The hermetically-sealed construction of bearing external inner guide pulley described in the utility model adopts multi-stage sealed.
Primary seal adopts mechanical seal structure, rotating ring is embedded on wheel body, rotates with main shaft, and stationary ring is inlayed with wheel bracket and is connected, rotating ring and main shaft, the O type circle adopting mechanical seal to carry between stationary ring and wheel bracket respectively seal, thus achieve the object of sealing.
Also take secondary seal, three grades of sealings and level Four sealing and other hermetically-sealed construction supplementing as primary seal, when after primary seal wearing and tearing, secondary seal can play the effect of barrier, effectively stops pulp water excessive.Secondary seal and level Four sealing can adopt high abrasion material filler to seal, and three grades of sealings can adopt special-purpose water-proof alkali resistant stop-leak compound to seal.
Further, be also provided with sealing oil pipe, it is outer and be connected with the oil nozzle of oiling device that one end of described sealing oil pipe is positioned at bearing block, and the other end of described sealing oil pipe is positioned at three grades of sealings place.
The beneficial effect of above-mentioned further scheme is adopted to be: can supplement grease in time by sealing oil pipe, guarantee sealing effectiveness.
In order to improve the efficiency of supplementary grease, bearing external inner guide pulley described in the utility model can support the use with automatic oiling device, automatic oiling device is utilized to carry out timing, quantitative filling to inner guide pulley sealing system, avoid the drawback that artificial dosing method exists, after the measurement of automatic oiling device runs out of, automatic oiling device self can send acousto-optic-electric and report to the police, and prompting again supplements seal grease and changes battery.Realize the function automatically detected.
Further, described wheel bracket comprises sleeved part and support portion, and described sleeved part is round table-like; One end of described support portion is fixedly connected with bearing block, the other end of described support portion is fixedly connected with one end of described sleeved part or one-body molded, the other end of described sleeved part is fixedly connected with wheel body, and the area of one end that described sleeved part is connected with support portion is greater than the area of one end that described sleeved part is connected with wheel body; The bearing block of bearing block and wheel bracket junction is provided with pod apertures, and described mozzle is communicated with the inside of sleeved part by pod apertures.
Adopt the beneficial effect of above-mentioned further scheme to be: collect cavity, pod apertures to be set before bearing bore, the external mozzle of pod apertures, a small amount of buck infiltrated in cell body, through mozzle (mozzle is connected with pod apertures), do draining and use.When there being water to discharge from pod apertures, showing that sealing was lost efficacy, sealing should be changed in time.Outflow drains into assigned address, avoids the inside oil sealing destroying bearing bore side when being sealed with seepage in collect cavity form normal pressure, thus ensures reliability and the lubrication of sealing.
Further, described wheel body is connected by Type B flat key with one end of the close inner end cap of main shaft.
The beneficial effect of above-mentioned further scheme is adopted to be: wheel body and main shaft adopt Type B flat key to be connected, guide wheel and spindle synchronous rotate, as compared to bearing built-in guide wheel (wheel body and main shaft link place with bearing, and during running, wheel body rotates with bearing, and main shaft does not turn); Outside dragveyer, just can judge that whether the operational situation of inner guide pulley wheel body in pulp water is normal so intuitively.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of bearing built-in inner guide pulley in prior art;
Fig. 2 is the structural representation figure of another bearing built-in inner guide pulley in prior art;
Fig. 3 is the sectional view of bearing external inner guide pulley described in the utility model;
Fig. 4 is the side view (not drawing casing) of bearing external inner guide pulley described in the utility model.
In accompanying drawing, the list of parts representated by each label is as follows:
1, the bearing of bearing built-in inner guide pulley, 2, the wheel body of bearing built-in inner guide pulley, 3, bearing block, 310, outer end cap, 320, aligning roller bearing, 330, cylindrical roller bearing, 4, casing, 5, wheel bracket, 510, collect cavity, 6, wheel body, 610, inner end cap, 7, main shaft, 8, primary seal, 810, rotating ring, 820, sealing surface, 830, stationary ring, 9, secondary seal, 10, three grades of sealings, 11, level Four seals, 12, can, 13, the joint face of wheel bracket and bearing block, 14, dust seal, 15, sealing oil pipe, 16, oiling device, 17, pod apertures, 18, mozzle, 19, Type B flat key.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 3 and Figure 4, a kind of bearing external inner guide pulley, comprises the bearing block 3 be set in successively on main shaft 7, wheel bracket 5 and wheel body 6; One end of described bearing block 3 is provided with outer end cap 310, the other end of described bearing block 3 is fixedly connected with one end of wheel bracket 5, the other end of described wheel bracket 5 is fixedly connected with one end of wheel body 6, the other end of described wheel body 6 is provided with inner end cap 610, described inner end cap 610 is pressed together with wheel body 6, and described casing 4 is enclosed within the outside of the junction of bearing block 3 and wheel bracket 5; Be arranged with bearing between described main shaft 7 and described bearing block 3, one end of described main shaft 7 is positioned at bearing block 3, and the other end of described main shaft 7 is fixedly connected with inner end cap 610 (such as utilizing bolt to be connected); Junction between described wheel body 6 and wheel bracket 5, between described wheel bracket 5 and main shaft 7, between described wheel bracket 5 and bearing block 3 is equipped with sealing device.
The inside (i.e. bearing bore) of described bearing block 3 is provided with two cover bearings, and described two cover bearings are enclosed within outside main shaft 7 respectively.
Described two cover bearings are respectively aligning roller bearing 320 and cylindrical roller bearing 330, and described cylindrical roller bearing is positioned at the one end near outer end cap 310, and described aligning roller bearing 320 and cylindrical roller bearing 330 are provided with spacer.
Be provided with primary seal 8 between described wheel body 6 and wheel bracket 5, described primary seal 8 is mechanical seal structure.Comprise rotating ring 810, stationary ring 830, joint face between rotating ring 810 and stationary ring 830 is sealing surface 820, rotating ring 810 is embedded on wheel body 6, rotate with main shaft 7, stationary ring 830 is inlayed with wheel bracket 5 and is connected, rotating ring 810 and main shaft 7, the O type circle adopting mechanical seal to carry between stationary ring 830 and wheel bracket 5 respectively seal, thus achieve the object of sealing.
Be provided with can 12 at wheel bracket 5 near the side of described bearing block 3 at wheel bracket 5 inside (i.e. collect cavity 510) simultaneously, described can 12 is enclosed within main shaft 7, is provided with secondary seal 9, three grades sealing 10 and level Four sealing 11 between can 12 and main shaft 7; Described secondary seal 9 is packing seal, and described three grades of sealings 10 are grease seal; Described level Four sealing 11 is packing seal.
Secondary seal and level Four sealing can adopt high abrasion material filler to seal, and three grades of sealings can adopt special-purpose water-proof alkali resistant stop-leak compound to seal.The model of described special-purpose water-proof alkali resistant stop-leak compound is CHMMJ8612 water-proof alkali-resistant stop-leak compound, also can select the sealing lipid of other good sealing effects.
The joint face 13 of described wheel bracket and bearing block whitewashes lead-tight (joint face 13 of the wheel bracket and bearing block that only depict part in Fig. 3, for illustrating, does not draw all).
The junction of described outer end cap 310 and main shaft 7 is sealed by dust seal 14.
Described bearing external inner guide pulley is also provided with sealing oil pipe 15, and it is outer and be connected with the oil nozzle of oiling device 16 that one end of described sealing oil pipe 15 is positioned at bearing block 3, and the other end of described sealing oil pipe 15 is positioned at three grades of sealing 10 places.
General every some cycles filling seal grease, such as weekly or filling every day once, injection rate is 30mL, and automatic oiling machine can be utilized automatically to complete; The filling cycle of bearing oil is annotate once for every six months, and injection rate is 100mL.Those skilled in the art suitably can adjust number of times and the consumption of filling seal grease and bearing oil according to actual conditions.
Described wheel bracket 5 comprises sleeved part and support portion, and described sleeved part is round table-like; One end of described support portion is fixedly connected with bearing block 3, the other end of described support portion is fixedly connected with one end of described sleeved part or one-body molded, the other end of described sleeved part is fixedly connected with wheel body 6, the area of one end that described sleeved part is connected with support portion is greater than the area of one end that described sleeved part is connected with wheel body 6, bearing block 3 with the bearing block 3 of wheel bracket 5 junction are provided with pod apertures 17, and described mozzle 18 is communicated with the inside of sleeved part by pod apertures 17.
Described wheel body 6 is connected by Type B flat key 19 with one end of the close inner end cap 610 of main shaft 7.
Bearing external inner guide pulley described in the utility model there is no restriction strict especially for material, size, as long as can satisfy the demand.Preferably, wheel body can adopt casting carbon steel ZG450 to utilize sudden ignition technique to process, and main shaft can adopt that 45# steel is modified to be formed, and the material of dust seal can be tetrafluoro polyurethane.Those skilled in the art also suitably can adjust and select other materials or processing technology.
Those skilled in the art can select suitable connected mode to be installed on dragveyer by bearing external inner guide pulley, such as, adopt that flange is direct-connected is installed on dragveyer, during installation, whether the sealing joint strip on inspection machine shell process orchid is intact, should change in time if any damage, to guarantee the good seal between flange, pod apertures should remain on extreme lower position, is convenient to when can feedback information timely after seal breakage, in time filling seal grease or change seal.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a bearing external inner guide pulley, is characterized in that, comprises the bearing block (3), wheel bracket (5) and the wheel body (6) that are set in (7) on main shaft successively; One end of described bearing block (3) is provided with outer end cap (310), the other end of described bearing block (3) is fixedly connected with one end of wheel bracket (5), the other end of described wheel bracket (5) is fixedly connected with one end of wheel body (6), the other end of described wheel body (6) is provided with inner end cap (610), and casing (4) is enclosed within the outside of the junction of bearing block (3) and wheel bracket (5); Bearing is arranged with between described main shaft (7) and described bearing block (3); One end of described main shaft (7) is positioned at bearing block (3), and the other end of described main shaft (7) is fixedly connected with inner end cap (610); Junction between described wheel body (6) and wheel bracket (5), between described wheel bracket (5) and main shaft (7), between described wheel bracket (5) and bearing block (3) is equipped with sealing device.
2. a kind of bearing external inner guide pulley according to claim 1, it is characterized in that, the inside of described bearing block (3) is provided with two cover bearings, and described two cover bearings are enclosed within main shaft (7) outward respectively.
3. a kind of bearing external inner guide pulley according to claim 2, it is characterized in that, described two cover bearings are respectively aligning roller bearing (320) and cylindrical roller bearing (330), and described cylindrical roller bearing (330) is positioned at the one end near outer end cap (310).
4. a kind of bearing external inner guide pulley according to claim 3, it is characterized in that, be provided with primary seal (8) between described wheel body (6) and wheel bracket (5), described primary seal (8) is mechanical seal structure.
5. a kind of bearing external inner guide pulley according to claim 4, it is characterized in that, can (12) is provided with near the side of described bearing block (3) at wheel bracket (5), described can (12) is enclosed within main shaft (7), is provided with secondary seal (9), three grades of sealings (10) and level Four sealing (11) between can (12) and main shaft (7); Described secondary seal (9) is packing seal, and described three grades of sealings (10) are grease seal, and described level Four sealing (11) is packing seal.
6. a kind of bearing external inner guide pulley according to claim 5, it is characterized in that, the joint face (13) of described wheel bracket and bearing block whitewashes lead-tight.
7. a kind of bearing external inner guide pulley according to claim 6, is characterized in that, the junction of described outer end cap (310) and main shaft (7) is by dust seal (14) sealing.
8. a kind of bearing external inner guide pulley according to claim 7, it is characterized in that, also be provided with sealing oil pipe (15), one end of described sealing oil pipe (15) is positioned at bearing block (3) and be connected with the oil nozzle of oiling device (16) outward, and the other end of described sealing oil pipe (15) is positioned at three grades of sealing (10) places.
9. a kind of bearing external inner guide pulley according to claim 8, it is characterized in that, described wheel bracket (5) comprises sleeved part and support portion, and described sleeved part is round table-like; One end of described support portion is fixedly connected with bearing block (3), the other end of described support portion is fixedly connected with one end of described sleeved part or one-body molded, the other end of described sleeved part is fixedly connected with wheel body (6), and the area of one end that described sleeved part is connected with support portion is greater than the area of one end that described sleeved part is connected with wheel body (6); The bearing block (3) of bearing block (3) with wheel bracket (5) junction is provided with pod apertures (17), and described mozzle (18) is communicated with the inside of sleeved part by pod apertures (17).
10. a kind of bearing external inner guide pulley according to any one of claim 1 to 9, it is characterized in that, described wheel body (6) is connected by Type B flat key (19) with one end of the close inner end cap (610) of main shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481374.XU CN204829957U (en) | 2015-07-06 | 2015-07-06 | Guide pulley in bearing is external |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520481374.XU CN204829957U (en) | 2015-07-06 | 2015-07-06 | Guide pulley in bearing is external |
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| Publication Number | Publication Date |
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| CN204829957U true CN204829957U (en) | 2015-12-02 |
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| CN201520481374.XU Active CN204829957U (en) | 2015-07-06 | 2015-07-06 | Guide pulley in bearing is external |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594770A (en) * | 2017-01-16 | 2017-04-26 | 青岛达能环保设备股份有限公司 | Bearing inbuilt mechanical sealing type inner guide wheel system for scraper slag salvaging machine |
-
2015
- 2015-07-06 CN CN201520481374.XU patent/CN204829957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594770A (en) * | 2017-01-16 | 2017-04-26 | 青岛达能环保设备股份有限公司 | Bearing inbuilt mechanical sealing type inner guide wheel system for scraper slag salvaging machine |
| CN106594770B (en) * | 2017-01-16 | 2018-07-17 | 青岛达能环保设备股份有限公司 | The sealed inner guide pulley system of submerged slag conveyor bearing built-in machines |
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