CN2591425Y - Scaly chain grate fixing pin - Google Patents
Scaly chain grate fixing pin Download PDFInfo
- Publication number
- CN2591425Y CN2591425Y CN 02288844 CN02288844U CN2591425Y CN 2591425 Y CN2591425 Y CN 2591425Y CN 02288844 CN02288844 CN 02288844 CN 02288844 U CN02288844 U CN 02288844U CN 2591425 Y CN2591425 Y CN 2591425Y
- Authority
- CN
- China
- Prior art keywords
- pin
- scaly
- chain grate
- fire grate
- chain
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Chain Conveyers (AREA)
Abstract
The utility model relates to a scaly chain grate fixing pin shaft which is characterized in that a pin shaft is provided with a pin hole in which a screw thread is arranged and a nut is fixed. The utility model has advantages that the phenomenon that a grate segment sloughs can be overcome, the structure is simple, the design is artful, and the usage is convenient.
Description
Technical field
The utility model relates to a kind of flake type chain fire grate fixed pin shaft.
Background technology
Scale chain grate now has been widely used on the large-tonnage boiler, and the front and back crossover is close to mutually, in the course of the work, after fire grate walks to tail down and changes idle running over to, make to rely on deadweight to turn successively, reversal of the natural order of things can be removed lime-ash automatically on clamping plate, and obtains cooling.Link to each other with sleeve pipe with pull bar between each adjacent chain, make between the chain apart from remaining unchanged.The advantage of scale chain grate is: 1, the coal seam contacts with whole grate surface, and chain directly is not heated, and is safe and reliable to operation.2, the fire grate gap is very little, leaks coal seldom.3, fire grate segment is thinner, and cooling condition is good, can not stop to change.4, because of chain is a flexible structure, when the profile of tooth of driving shaft upper sprocket wheel is slightly irregular, can adjust its elasticity voluntarily, keep meshing good.But also have some problems: during the traveling-grate stoker operation, the fire grate segment obscission often takes place, and makes a big impact for the normal operation of boiler, therefore, prevents that fire grate segment from coming off, and reducing grate failure is the necessary condition that guarantees the safe and economical boiler operation.The reason that causes fire grate segment to come off mainly contains: 1, the pull bar bolts at two ends is loosening, makes distance increase between the chain, and fire grate segment comes off.2, fire grate size and design size are not inconsistent.3, the fire grate lower guide blocks fire grate, phenomenons such as extension because of overheating deforming in the idle running process.4, clan's ashcan dust stratification is too much under the fire grate, holds up fire grate, causes fire grate loosening.5, the split pin on the fixed pin shaft comes off bearing pin because of shearing or overheatedly causing fracture between clamping plate and the chain, causes causing coming off of fire grate segment.
Technology contents
The purpose of this utility model provides a kind of scale chain grate fixed pin shaft, and it is the immediate cause that causes fire grate segment to come off according to the fracture of fixed pin shaft cottering, has overcome above-mentioned defective.
The technical solution of the utility model is: a kind of scale chain grate fixed pin shaft is characterized in that: be provided with pin-and-hole on bearing pin, screw thread is arranged in the pin-and-hole, and be fixed with nut.
Clamped spring washer in the said pin-and-hole.
The utlity model has following advantage: 1, overcome the fire grate segment obscission; 2, simple in structure, design ingenious, easy to use, economical and practical.
Description of drawings
Accompanying drawing 1 is the utility model structural profile schematic diagram.
The specific embodiment
As shown in the figure, a kind of scale chain grate fixed pin shaft is characterized in that: be provided with pin-and-hole 2 on bearing pin 1, in the pin-and-hole 2 screw thread arranged, and be fixed with nut 3.
Clamped spring washer 4 in the said pin-and-hole.
Claims (2)
1, a kind of scale chain grate fixed pin shaft is characterized in that: be provided with pin-and-hole on bearing pin, screw thread is arranged in the pin-and-hole, and be fixed with nut.
2, a kind of scale chain grate fixed pin shaft according to claim 1 is characterized in that: clamped spring washer in the said pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288844 CN2591425Y (en) | 2002-11-26 | 2002-11-26 | Scaly chain grate fixing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02288844 CN2591425Y (en) | 2002-11-26 | 2002-11-26 | Scaly chain grate fixing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2591425Y true CN2591425Y (en) | 2003-12-10 |
Family
ID=33748584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02288844 Expired - Fee Related CN2591425Y (en) | 2002-11-26 | 2002-11-26 | Scaly chain grate fixing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2591425Y (en) |
-
2002
- 2002-11-26 CN CN 02288844 patent/CN2591425Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2591425Y (en) | Scaly chain grate fixing pin | |
| CN216707320U (en) | Electric screw joint pipe tongs | |
| CN2615407Y (en) | Easy-to-dismount fastening apparatus for roll and shaft | |
| CN208651454U (en) | A kind of shaft coupling for being easily installed and fixing | |
| CN201482989U (en) | Prolonged structure of lathe | |
| CN201027934Y (en) | Belt tension device of oil pumping machine | |
| CN2584645Y (en) | Bolt with expansion pin | |
| CN2444705Y (en) | Semi-automatic oil nozzle tightening machine | |
| CN220866331U (en) | Conveniently dismantle sprocket assembly's tail | |
| CN2908053Y (en) | Chain type torque wrench | |
| CN2726817Y (en) | Parts-chucking plate screw automatic rewinding device | |
| CN209334448U (en) | A kind of locking mechanism of cold-formed steel rolling mill stress pull rod | |
| CN221401507U (en) | Slag extractor apron chain convenient to change | |
| CN210422546U (en) | Well head load fault protection device | |
| CN212838540U (en) | Transmission frame device convenient to maintain and used for novel industrial furnace circulating fan | |
| CN212085227U (en) | Connecting wire with spring gasket | |
| CN2466103Y (en) | Pawl drum check device | |
| CN221353796U (en) | Power supply line support | |
| CN200979167Y (en) | Slag stopper of boiler chain grate | |
| CN221394057U (en) | Reverse thrust tensioning device | |
| CN2574878Y (en) | Die | |
| CN219190045U (en) | Tool for installing anti-rolling torsion bar and tension-compression bar | |
| CN218578761U (en) | Board joggling toothed rail seat | |
| CN2255423Y (en) | L-shape automatic-lifting repairing table for motorcycle | |
| CN2189028Y (en) | Steel bar frame voller welding machine, electricity conducting means thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |