CN2591425Y - Scaly chain grate fixing pin - Google Patents

Scaly chain grate fixing pin Download PDF

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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
Application number
CN 02288844
Other languages
Chinese (zh)
Inventor
苏元伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 02288844 priority Critical patent/CN2591425Y/en
Application granted granted Critical
Publication of CN2591425Y publication Critical patent/CN2591425Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

The scale chain grate fixed pin shaft
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.
CN 02288844 2002-11-26 2002-11-26 Scaly chain grate fixing pin Expired - Fee Related CN2591425Y (en)

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)

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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