CN203737326U - Spring loading device - Google Patents
Spring loading device Download PDFInfo
- Publication number
- CN203737326U CN203737326U CN201320545210.XU CN201320545210U CN203737326U CN 203737326 U CN203737326 U CN 203737326U CN 201320545210 U CN201320545210 U CN 201320545210U CN 203737326 U CN203737326 U CN 203737326U
- Authority
- CN
- China
- Prior art keywords
- spring
- loading
- nut
- hydraulic cylinder
- charging device
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model provides a spring loading device. The spring loading device comprises a loading rod, a fixing plate, a fixing bolt, a fixing nut, a spring sleeve, an end cover, a locking nut, a loading nut, a disk spring set, a sealing ring, a hydraulic cylinder, a manual oil pump and a wrench. The spring loading device is characterized in that the loading force generated by compressing the disk spring set is directly proportional to the compression amount of the disk spring set and is transmitted onto a grinding roll through the loading rod, so that raw coal is pressed and crushed; the loading force can be adjusted automatically when the feed quantity of the raw coal changes; besides, the screwing depth of the loading nut in the loading rod can be adjusted by virtue of the manual oil pump and the hydraulic cylinder so as to change the initial compression amount of the disk spring set and then the initial loading force can be set; the magnitude of the initial loading force can be determined conveniently according to the reading of the manual oil pump and the area of the hydraulic cylinder. According to the spring loading device, the defects and the deficiencies of a traditional loading device using a hydraulic loading mode are overcome, and the loading force can be adjusted automatically along with the changing of the feed amount; besides, the spring loading device is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of spring charging device, is mainly used in the loading of thermal power plant medium-speed coal mill roller grinding pressure, belongs 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 of medium-speed pulverizer and mill bowl, finally becomes the coal dust that meets boiler combustion.In order to reach this object, must apply enough large pressure 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, can automatically not adjust with the variation of inlet amount.
Summary of the invention
The purpose of this utility model is to provide a kind of spring charging device, the structure that makes it compared with hydraulic loading device when simple and work without additionaling power, can realize loading force simultaneously and can automatically adjust along with the variation of inlet amount.
For achieving the above object, the technical solution of the utility model is to provide a kind of 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: the loading force of the compressed rear generation of described disk spring group is directly proportional to the decrement of disk spring group, and be delivered on grinding roller raw coal attrition crushing by load bar, in the time that raw coal inlet amount changes, loading force can be adjusted automatically, thereby can adjust the initial compression amount setting original upload power that nut screws in the position of load bar and then changes disk spring group that loads by hand oil pump and hydraulic cylinder simultaneously, the large I of original upload power is convenient definite by reading and the hydraulic cylinder area of hand oil pump.
A kind of spring charging device structure chart that Fig. 1 provides for the utility model, charger is fixed to by fixed head 2 on the medium-speed pulverizer body that needs to load, spring spool 5 is fixed on fixed head 2 by set bolt 3 and hold-down nut 4, by regulate the position of hold-down nut 4 can regulating spring sleeve 5 with the relative position of 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 nut 8 and is screwed in the right-hand member of load bar 1, makes to be enclosed within disk spring group 9 on load bar 1 in compressive state.The position of adjusting loading nut 8 can change the decrement of butterfly spring group 9 in spring spool 5 and then change a kind of original upload power of spring charging device.Locking nut 7 is for preventing that loading nut 8 gets loose, and sealing ring 10 is placed between fixed head 2 and spring spool 5, can prevent that dust leakage in equipment is outside equipment.Sealing ring 11 is placed between load bar 1 and spring spool 5, prevents that the dust in equipment from entering in spring spool 5.
The utility model has overcome the defect and the deficiency that in the charger of employing hydraulic loaded mode, exist, can realize loading force and can automatically adjust along with the variation of inlet amount, simple in structure, easy to operate.
Brief description of the drawings
Fig. 1 is a kind of 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 a kind of 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-spring charging device; 19-grinding roller hinge; 20-grinding roller; 21-raw coal; 22-grinds bowl;
Detailed description of the invention
For the present invention is become apparent, hereby with a preferred embodiment, and coordinate accompanying drawing to be described in detail below:
First required extruding force while raw coal 21 crushing grindings being become to qualified coal dust according to grinding roller 20, selects applicable disk spring group 9, makes the maximum working load of disk spring group 9 and minimum workload meet the instructions for use of grinding roller 20.In conjunction with Fig. 1, first according to Fig. 1, a kind of spring charging device is assembled, because the loading force of the generation of disk spring group 9 is very large, so need to loading nut 8 be tightened by hydraulic cylinder 12, hydraulic cylinder 12 is loop configuration, loads nut and is provided with 8 uniform driving holes.While tightening, first its hydraulic cylinder 12 is enclosed within and loads nut 8 outsides, then the locking nut 7 of screwing on, on locking nut 7, establish 3 uniform arcuate sockets, then hand oil pump 13 and hydraulic cylinder 12 are connected, pressing hand oil pump 13 extends hydraulic cylinder 12 vertically: load bar 1 also moves right thereupon, and disk spring is compressed.On spanner 16, be laid with 3 poke rods 17, when hydraulic cylinder 12 is elongated to after certain length, utilize the poke rod 17 on spanner 16 to insert in the driving hole 14 loading on nut 8 through the arcuate socket 15 on locking nut 7, rotate loading nut 8 and make it compress end cap 6.The power that hydraulic cylinder 12 applies can be by the acquisition of multiplying each other of the numerical value of the area of hydraulic cylinder and hand oil pump pressure gauge, in the time that this value equals the required original upload power of spring charging device, after loading nut 8 can being tightened, pull down hydraulic cylinder 12, locking nut 7 is tightened, spring charging device assembling finishes again.
In conjunction with Fig. 5, a kind of spring charging device assembling is fixed on medium-speed pulverizer body by fixed head 2.When 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 is with grinding roller 20 in holding out against state, and the power that disk spring group 9 produces is delivered on grinding roller 20 by load bar 1, is further delivered on the raw coal between grinding roller 20 and mill bowl 22, makes raw coal be extruded fragmentation and grinds to form coal dust.Because the loading force of disk spring group 9 compressed rear generations is directly proportional to the decrement of disk spring group, so loading force can be adjusted automatically in the time that the raw coal amount between grinding roller 20 and mill bowl 22 changes.
Claims (5)
1. a 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, charger is fixed to by fixed head on the medium-speed pulverizer body that needs to load, spring spool is fixed on fixed head position by regulating hold-down nut by set bolt and hold-down nut can regulating spring sleeve and the relative position of fixed head, end cap is arranged on the right-hand member of load bar on spring spool and is processed with screw thread, load the right-hand member that nut is screwed in load bar, make to be enclosed within disk spring group on load bar in compressive state, regulate the position that loads nut can change the decrement of butterfly spring group in spring spool and then the original upload power of change spring charging device, locking nut is used for preventing from loading nut and gets loose, sealing ring is all set between fixed head and spring spool and between load bar and spring spool, it is characterized in that: the loading force of the compressed rear generation of described disk spring group is directly proportional to the decrement of disk spring group, and be delivered to by load bar on the grinding roller of coal pulverizer raw coal attrition crushing, in the time that raw coal inlet amount changes, loading force can be adjusted automatically, thereby can adjust the initial compression amount setting original upload power that nut screws in the position of load bar and then changes disk spring group that loads by hand oil pump and hydraulic cylinder simultaneously, the large I of original upload power is convenient definite by reading and the hydraulic cylinder area of hand oil pump.
2. according to the spring charging device of claim 1, it is characterized in that: on described locking nut, have 3 uniform arcuate sockets.
3. according to the spring charging device of claim 1, it is characterized in that: on described loading nut, have 8 uniform driving holes.
4. according to the spring charging device of claim 1, it is characterized in that: described hydraulic cylinder is loop configuration.
5. according to the spring charging device of claim 1, it is characterized in that: described spanner is laid with 3 poke rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545210.XU CN203737326U (en) | 2013-09-02 | 2013-09-02 | Spring loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320545210.XU CN203737326U (en) | 2013-09-02 | 2013-09-02 | Spring loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737326U true CN203737326U (en) | 2014-07-30 |
Family
ID=51337190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320545210.XU Withdrawn - After Issue CN203737326U (en) | 2013-09-02 | 2013-09-02 | Spring loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829803A (en) * | 2020-07-16 | 2020-10-27 | 长江大学 | Test bed for testing hydraulic oscillator |
-
2013
- 2013-09-02 CN CN201320545210.XU patent/CN203737326U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829803A (en) * | 2020-07-16 | 2020-10-27 | 长江大学 | Test bed for testing hydraulic oscillator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104415825A (en) | YF-type spring loading device | |
| CN203737326U (en) | Spring loading device | |
| CN103316750A (en) | Material feeding device of scrap steel grinder | |
| CN204760735U (en) | Second harmonic generation crystal support | |
| CN202851620U (en) | Adjusting pull rod | |
| CN206435623U (en) | Knurling tool pressure is adjusted and testing agency | |
| CN201420662Y (en) | Flange-thread connected tightening cross head | |
| CN206286807U (en) | A kind of quick mounting type bolt tensioning jack | |
| CN206732216U (en) | A kind of portable simple chamfering device | |
| CN205587061U (en) | Coal pulverizer hydraulic pressure becomes loading device | |
| CN200981795Y (en) | Torque moment adjustable wringing and grinding drum | |
| CN209049480U (en) | Liner plate is used on a kind of thermal power plant coal pulverizer | |
| CN203227516U (en) | Automatic tensioning system of jaw crushing spring | |
| CN202954302U (en) | Bed-jig elevation adjusting device | |
| CN204321993U (en) | Expansion sleeve type bearing puller | |
| CN204247288U (en) | A kind of disintegrating machine granularity adjustment and fastener | |
| CN203853121U (en) | Vertical mill roller sleeve compaction structure | |
| CN204307655U (en) | Beaming roller spacing adjustment structure | |
| CN105689056A (en) | Hydraulic variable-loading device for coal mill | |
| CN203317331U (en) | Disassembling tool for check valves of homogenizers | |
| CN203045643U (en) | Grinding wheel nut fastening device | |
| CN205733013U (en) | A kind of adjustment structure of large-scale precision biserial ball roller bearing | |
| CN206493242U (en) | A kind of positioner of strip of paper used for sealing mould | |
| CN206283387U (en) | Large-scale shield electric machine stator coil compression tooling device | |
| CN204284667U (en) | A kind of fire hose for oiling presss from both sides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20170725 |
|
| AV01 | Patent right actively abandoned |