CN104415825A - YF-type spring loading device - Google Patents
YF-type spring loading device Download PDFInfo
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- CN104415825A CN104415825A CN201310395034.0A CN201310395034A CN104415825A CN 104415825 A CN104415825 A CN 104415825A CN 201310395034 A CN201310395034 A CN 201310395034A CN 104415825 A CN104415825 A CN 104415825A
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Abstract
The invention provides a YF-type spring loading device. The YF-type spring loading device comprises a loading rod, a fixed plate, a fixed bolt, a fixed nut, a spring sleeve, an end cover, a locking nut, a loading nut, a disc-type spring group, a sealing ring, a hydraulic cylinder, a manual oil pump and a wrench, and the YF-type spring loading device is characterized in that a loading force produced after the disc-type spring group is compressed is in direct proportion to the compression amount of the disc-type spring group and is transferred to a grinding roller through the loading rod so as to crush raw coal, and when the feed amount of the raw coal is changed, the loading force can be automatically adjusted; meanwhile, the screwing position of the loading nut in the loading rod can be adjusted by virtue of the manual oil pump and the hydraulic cylinder to further change the initial compression amount of the disc-type spring group so as to set an initial loading force, and the initial loading force can be conveniently determined through the reading of the manual oil pump and the area of the hydraulic cylinder. By adopting the YF-type spring loading device, the defects of the traditional loading device adopting a hydraulic loading way can be overcome, and the loading force can be automatically adjusted along with the variation of the feed amount. The YF-type spring loading device is simple in structure and convenient to operate.
Description
Technical field
The present invention relates to a kind of YF type spring charging device, be mainly used in the loading of thermal power plant medium-speed coal mill roller grinding pressure, belong to coal dust fragmentation, grinding technique field.
Background technology
Medium-speed pulverizer is widely used in thermal power plant, and raw coal is extruded fragmentation and grinding between the grinding roller and mill bowl of medium-speed pulverizer, finally becomes the coal dust meeting boiler combustion.In order to reach this object, enough large pressure must be applied to grinding roller, because required applied pressure is larger, so common charger adopts hydraulic loaded mode.The shortcoming of hydraulic loaded mode is hydraulic system more complicated, and Hydraulic Station is often in running order, and the power of loading is constant substantially, automatically can not adjust with the change of inlet amount.
Summary of the invention
The object of this invention is to provide a kind of spring charging device, the structure making it comparatively hydraulic loading device simple and work time without the need to additionaling power, can realize loading force can adjust along with the change of inlet amount simultaneously automatically.
For achieving the above object, technical scheme of the present invention is to provide YF type spring charging device, comprise load bar, fixed head, set bolt, hold-down nut, spring spool, end cap, locking nut, load nut, disk spring group, sealing ring, hydraulic cylinder, hand oil pump and spanner, it is characterized in that: described disk spring group is directly proportional to the decrement of disk spring group by the loading force compressing rear generation, and be delivered to raw coal attrition crushing on grinding roller by load bar, when raw coal inlet amount changes, loading force can adjust automatically, adjust the initial compression amount of position and then the change disk spring group loading nut screw-in load bar by hand oil pump and hydraulic cylinder simultaneously thus set original upload power, the size of original upload power is conveniently determined by the reading of hand oil pump and hydraulic cylinder area..
Fig. 1 is YF type spring charging device structure chart provided by the invention, charger is fixed on the apparatus body of needs loading by fixed head 2, spring spool 5 is fixed on fixed head 2 by set bolt 3 and hold-down nut 4, by regulating the position of hold-down nut 4 can the relative position of regulating spring sleeve 5 and fixed head 2.End cap 6 is arranged on spring spool 5, and the right-hand member of load bar 1 is processed with screw thread, loads the right-hand member that nut 8 is screwed in load bar 1, makes the disk spring group 9 be enclosed within load bar 1 be in compressive state.Regulate the position loading nut 8 can change the decrement of butterfly spring group 9 in spring spool 5 and then change the original upload power of YF type spring charging device.Locking nut 7 gets loose for preventing loading nut 8, and sealing ring 10 is placed between fixed head 2 and spring spool 5, and dust leakage in equipment can be prevented to outside equipment.Sealing ring 11 is placed between load bar 1 and spring spool 5, prevents the dust in equipment from entering in spring spool 5.
Instant invention overcomes the defect and deficiency that adopt and exist in the charger of hydraulic loaded mode, can realize loading force can adjust automatically along with the change of inlet amount, and structure is simple, easy to operate.
Accompanying drawing explanation
Fig. 1 is YF type spring charging device structure chart;
Fig. 2 is for loading nut structure figure;
Fig. 3 is locking nut structure figure;
Fig. 4 is spanner structure figure;
Fig. 5 is YF type spring charging device scheme of installation;
Description of reference numerals
1-load bar; 2-fixed head; 3-set bolt; 4-hold-down nut; 5-spring spool; 6-end cap;
7-locking nut; 8-loads nut; 9-disk spring group; 10-sealing ring; 11-sealing ring; 12-hydraulic cylinder;
13-hand oil pump; 14-driving hole; 15-arcuate socket; 16-spanner; 17-poke rod;
18-YF type spring charging device; 19-grinding roller hinge; 20-grinding roller; 21-raw coal; 22-grinds bowl;
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below:
Extruding force required when first raw coal 21 crushing grinding being become qualified coal dust according to grinding roller 20, selects the disk spring group 9 be applicable to, makes the maximum working load of disk spring group 9 and minimum workload meet the instructions for use of grinding roller 20.Composition graphs 1, first according to Fig. 1, YF type spring charging device is assembled, because the loading force of the generation of disk spring group 9 is very large, so need by hydraulic cylinder 12, loading nut 8 to be tightened, hydraulic cylinder 12 is loop configuration, and loading nut is provided with 8 uniform driving holes.When tightening, first its hydraulic cylinder 12 is enclosed within and loads outside nut 8, locking nut 7 of then screwing on, then hand oil pump 13 and hydraulic cylinder 12 are connected, pressing hand oil pump 13 makes hydraulic cylinder 12 extend vertically, and load bar 1 also moves right thereupon, and disk spring is compressed.Spanner 16 is laid with 3 poke rods 17, after hydraulic cylinder 12 is elongated to certain length, utilizes the poke rod 17 on spanner 16 to insert in the driving hole 14 on loading nut 8 through the arcuate socket 15 on locking nut 7, rotate loading nut 8 and makes it compress end cap 6.The power that hydraulic cylinder 12 applies can be multiplied with numerical value manometric on hand oil pump by the area of hydraulic cylinder and to obtain, when this value equals the original upload power needed for spring charging device, after loading nut 8 can being tightened, pull down hydraulic cylinder 12, tightened by locking nut 7, spring charging device assembling terminates again.
Composition graphs 5, is fixed to the YF type spring charging device assembled on medium-speed pulverizer body by fixed head 2.During coal pulverizer work, mill bowl 22 rotates and drives grinding roller 20 to rotate together, and 21, raw coal is brought in the gap between mill bowl 22 and grinding roller 20.Now load bar 1 and grinding roller 20 are in the state of holding out against, and the power that disk spring group 9 produces is delivered on grinding roller 20 by load bar 1, are delivered to further on the raw coal between grinding roller 20 and mill bowl 22, make raw coal be extruded fragmentation and grind to form coal dust.Because disk spring group 9 is directly proportional to the decrement of disk spring group by the loading force compressing rear generation, so loading force can adjust automatically when the raw coal amount between grinding roller 20 and mill bowl 22 changes.
Claims (5)
1.YF type spring charging device, comprise load bar, fixed head, set bolt, hold-down nut, spring spool, end cap, locking nut, load nut, disk spring group, sealing ring, hydraulic cylinder, hand oil pump and spanner, it is characterized in that: described disk spring group is directly proportional to the decrement of disk spring group by the loading force compressing rear generation, and be delivered to raw coal attrition crushing on grinding roller by load bar, when raw coal inlet amount changes, loading force can adjust automatically, adjust the initial compression amount of position and then the change disk spring group loading nut screw-in load bar by hand oil pump and hydraulic cylinder simultaneously thus set original upload power, the size of original upload power is conveniently determined by the reading of hand oil pump and hydraulic cylinder area.
2. YF type spring charging device according to claim 1, is characterized in that: described locking nut has the arcuate socket that 3 uniform.
3. YF type spring charging device according to claim 1, is characterized in that: described loading nut has the driving hole that 8 uniform.
4. YF type spring charging device according to claim 1, is characterized in that: described hydraulic cylinder is loop configuration.
5. YF type spring charging device according to claim 1, is characterized in that: described spanner is laid with 3 driving levers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395034.0A CN104415825B (en) | 2013-09-02 | 2013-09-02 | A kind of spring charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395034.0A CN104415825B (en) | 2013-09-02 | 2013-09-02 | A kind of spring charging device |
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| CN104415825A true CN104415825A (en) | 2015-03-18 |
| CN104415825B CN104415825B (en) | 2017-07-25 |
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| CN201310395034.0A Active CN104415825B (en) | 2013-09-02 | 2013-09-02 | A kind of spring charging device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181415A (en) * | 2015-10-08 | 2015-12-23 | 云南磷化集团有限公司 | Rock slice bonding device |
| CN108254163A (en) * | 2017-12-13 | 2018-07-06 | 太原航空仪表有限公司 | A kind of liquid-filled sensing element service life wire examination method and its Special tooling piece |
| CN109612616A (en) * | 2018-12-30 | 2019-04-12 | 洛阳轴承研究所有限公司 | A kind of measurement of friction torque device of angular contact radial bearing |
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| EP0063172A2 (en) * | 1981-04-16 | 1982-10-27 | Dick Werner | Pneumatic spring support for the mixer arm of a mixer rotor consisting of tubular sleeves with vertical and horizontal devices for the adjustment of the mixer arm |
| JP2002159874A (en) * | 2000-11-28 | 2002-06-04 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical mill |
| CN1986065A (en) * | 2005-12-22 | 2007-06-27 | 上海重型机器厂有限公司 | Bowl-type medium speed coal mill |
| CN201227594Y (en) * | 2008-07-07 | 2009-04-29 | 金秀浩 | Counteraction loading device of roller disk type coal grinding machine |
| CN202655074U (en) * | 2012-05-25 | 2013-01-09 | 浙江中山化工集团有限公司 | Improved bowl-type coal mill for boiler |
| CN202655075U (en) * | 2012-05-25 | 2013-01-09 | 浙江中山化工集团有限公司 | Spring loading device of bowl type coal mill for boiler |
| CN103011004A (en) * | 2012-12-17 | 2013-04-03 | 四川矿山机器（集团）有限责任公司 | Real-time monitoring disk brake with pressure sensor |
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2013
- 2013-09-02 CN CN201310395034.0A patent/CN104415825B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0063172A2 (en) * | 1981-04-16 | 1982-10-27 | Dick Werner | Pneumatic spring support for the mixer arm of a mixer rotor consisting of tubular sleeves with vertical and horizontal devices for the adjustment of the mixer arm |
| JP2002159874A (en) * | 2000-11-28 | 2002-06-04 | Ishikawajima Harima Heavy Ind Co Ltd | Vertical mill |
| CN1986065A (en) * | 2005-12-22 | 2007-06-27 | 上海重型机器厂有限公司 | Bowl-type medium speed coal mill |
| CN201227594Y (en) * | 2008-07-07 | 2009-04-29 | 金秀浩 | Counteraction loading device of roller disk type coal grinding machine |
| CN202655074U (en) * | 2012-05-25 | 2013-01-09 | 浙江中山化工集团有限公司 | Improved bowl-type coal mill for boiler |
| CN202655075U (en) * | 2012-05-25 | 2013-01-09 | 浙江中山化工集团有限公司 | Spring loading device of bowl type coal mill for boiler |
| CN103011004A (en) * | 2012-12-17 | 2013-04-03 | 四川矿山机器（集团）有限责任公司 | Real-time monitoring disk brake with pressure sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181415A (en) * | 2015-10-08 | 2015-12-23 | 云南磷化集团有限公司 | Rock slice bonding device |
| CN105181415B (en) * | 2015-10-08 | 2018-10-12 | 云南磷化集团有限公司 | A kind of petrographic thin section adhering device |
| CN108254163A (en) * | 2017-12-13 | 2018-07-06 | 太原航空仪表有限公司 | A kind of liquid-filled sensing element service life wire examination method and its Special tooling piece |
| CN109612616A (en) * | 2018-12-30 | 2019-04-12 | 洛阳轴承研究所有限公司 | A kind of measurement of friction torque device of angular contact radial bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104415825B (en) | 2017-07-25 |
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