CN210949726U - Special crank connecting rod assembly of high strength chain saw - Google Patents
Special crank connecting rod assembly of high strength chain saw Download PDFInfo
- Publication number
- CN210949726U CN210949726U CN201921551533.3U CN201921551533U CN210949726U CN 210949726 U CN210949726 U CN 210949726U CN 201921551533 U CN201921551533 U CN 201921551533U CN 210949726 U CN210949726 U CN 210949726U
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- CN
- China
- Prior art keywords
- crank
- connecting rod
- bearing
- head
- indent
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- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a special crank connecting rod assembly of high strength chain saw, including two cranks, connect two articulate crank pins and connect the connecting rod on the crank pin, the connecting rod includes connecting rod bush and last connecting rod bush under the intermediate lever, two cranks all include integrated into one piece's crank head and crank shaft, be connected through bearing between lower connecting rod bush and the crank pin, bearing's width is less than connecting rod bush's width down, two articulate inboards all are equipped with cooperation bearing's anticollision indent, lower connecting rod bush, bearing and crank pin pair the pressure equipment, the crank pin is hollow round pin, all be equipped with antifriction bearing and cooperation antifriction bearing's abrasionproof indent on two cranks, be equipped with drive sprocket on one of them crank. The utility model discloses a crank head and crank axle integrated into one piece ensure its intensity, satisfy chain saw's demand, can prevent the collision between bearing and the crank, reduce antifriction bearing and the wearing and tearing between the crank, extension bearing and antifriction bearing life.
Description
Technical Field
The utility model relates to a spare part of sandy beach car especially relates to a special crank link assembly of high strength chain saw.
Background
The chain saw is a power saw for cutting trees and making timber, and its saw cutting mechanism is a saw chain. The power part is a gasoline engine and needs a special crank connecting rod assembly; at present, a crank head and a crank shaft of a common crank connecting rod assembly are often fixed together after being processed separately, so that the strength of the crank head and the crank shaft is difficult to meet the special requirement of a chain saw; meanwhile, friction is easily generated between the rolling bearings connected with the two ends of the crank and the outer side surface of the crank, so that the rolling bearings are damaged, and the service life of the rolling bearings is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, provide a crank head and crank axle integrated into one piece, ensure its intensity, satisfy the demand of chain saw, simultaneously, can also prevent the collision between bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong bearing and antifriction bearing life's special crank connecting rod assembly of high strength chain saw.
The technical scheme of the utility model: the utility model provides a special crank connecting rod assembly of high strength chain saw, includes two cranks, connects two articulate crank pins and connects the connecting rod on the crank pin, the connecting rod includes the intermediate lever, is located lower connecting rod bush and the last connecting rod bush at intermediate lever both ends, and two cranks all include integrated into one piece's crank head and crank shaft, be connected through bearing between lower connecting rod bush and the crank pin, bearing's width is less than lower connecting rod bush's width, and two articulate inboards all are equipped with cooperation bearing's anticollision indent, lower connecting rod bush, bearing and crank pin pair the pressure equipment, the crank pin is hollow pin, all is equipped with antifriction bearing and cooperation antifriction bearing's abrasionproof indent on two cranks, is equipped with drive sprocket on one of them crank.
The utility model discloses a crank head and crank axle integrated into one piece ensure its intensity, satisfy chain saw's demand, simultaneously, set up the anticollision indent on the crank and can prevent the collision between bearing and the crank, set up the abrasionproof indent on the crank and can reduce the wearing and tearing between antifriction bearing and the crank, extension bearing and antifriction bearing life.
Preferably, two cranks are left crank and right crank respectively, left side crank includes integrated into one piece's left crank head and left crank axle, right crank includes integrated into one piece's right crank head and right crank axle, the anticollision indent is including the left anticollision indent that is located left crank head inboard and the right anticollision indent that is located right crank head inboard.
The structure further ensures that the needle bearing cannot collide with the crank, and ensures the use stability and the service life.
Preferably, left crank head upper portion is equipped with the left crank pinhole of cooperation crank pin left end, right crank head upper portion is equipped with the right crank pinhole of cooperation crank pin right-hand member, antifriction bearing is including being located left antifriction bearing on the left crank axle and being located the right antifriction bearing on the right crank axle, drive sprocket is located the right crank axle.
The structure further ensures that the assembly between the crank pin and the crank is firm and reliable, and simultaneously further ensures the stability and the reliability of the operation of the crank.
Preferably, the left end of the left crank shaft is provided with a left internal thread hole for assembly, and the right end of the right crank shaft is provided with a right internal thread hole for assembly.
The structure is convenient to assemble and ensures the assembly firmness.
Preferably, the wear-proof indent comprises a left wear-proof indent on the left crank head and a right wear-proof indent on the right crank head; the left crank head is characterized in that a left anti-collision bevel opening matched with the upper connecting rod bushing is formed in the inner side of the bottom of the left crank head, and a right anti-collision bevel opening matched with the upper connecting rod bushing is formed in the inner side of the bottom of the right crank head.
The structure can prevent the collision between the upper connecting rod bushing and the crank, and further ensure the running stability of the crank; the wear between the rolling bearing and the crank can be further reduced.
The utility model discloses a crank head and crank axle integrated into one piece ensure its intensity, satisfy chain saw's demand, simultaneously, set up the anticollision indent on the crank and can prevent the collision between bearing and the crank, set up the abrasionproof indent on the crank and can reduce the wearing and tearing between antifriction bearing and the crank, extension bearing and antifriction bearing life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1, a left crank shaft, 2, a left crank head, 3, a right crank shaft, 4, a right crank head, 5, an intermediate rod, 6, a lower connecting rod bush, 7, an upper connecting rod bush, 8, a needle bearing, 9, a left rolling bearing, 10, a right rolling bearing, 11, a left anti-collision indent, 12, a right anti-collision indent, 13, a left anti-collision bevel notch, 14, a right anti-collision bevel notch, 15, a left internal thread hole, 16, a right internal thread hole, 17, a left anti-abrasion indent, 18, a right anti-abrasion indent, 19, a crank pin and 20 form a transmission chain wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in FIG. 1, a high-strength crank connecting rod assembly for chain saw comprises two cranks, a crank pin 19 for connecting the two cranks, and a connecting rod connected to the crank pin 19. The link includes an intermediate lever 5, a lower link bush 6 and an upper link bush 7 at both ends of the intermediate lever 5. Two cranks all include integrated into one piece's crank head and crank axle, be connected through bearing 8 between lower connecting rod bush 6 and the crank pin 19, bearing 8's width is less than connecting rod bush 6's width down, two articulate inboards all are equipped with cooperation bearing 8's anticollision indent, lower connecting rod bush 6, bearing 8 and crank pin 19 pair the pressure equipment, crank pin 19 is hollow round pin, two are all equipped with antifriction bearing and cooperation antifriction bearing's abrasionproof indent on the crank, be equipped with drive sprocket 20 on one of them crank. Two cranks are left crank and right crank respectively, and left crank includes integrated into one piece's left crank head 2 and left crank axle 1, and right crank includes integrated into one piece's right crank head 4 and right crank axle 3, and the anticollision indent is including being located the left anticollision indent 11 of left crank head 2 inboards and being located the right anticollision indent 12 of right crank head 4 inboards. The upper portion of the left crank head 2 is provided with a left crank pin hole matched with the left end of the crank pin 19, the upper portion of the right crank head 4 is provided with a right crank pin hole matched with the right end of the crank pin 19, the rolling bearings comprise a left rolling bearing 9 positioned on the left crank shaft 1 and a right rolling bearing 10 positioned on the right crank shaft 3, and the transmission chain wheel 20 is positioned on the right crank shaft 3. The left end of the left crank shaft 1 is provided with a left internal threaded hole 15 for assembly, and the right end of the right crank shaft 3 is provided with a right internal threaded hole 16 for assembly. The anti-abrasion inner recess comprises a left anti-abrasion inner recess 17 positioned on the left crank head 2 and a right anti-abrasion inner recess 18 positioned on the right crank head 4, a left anti-collision inclined opening 13 matched with the upper connecting rod bushing 7 is formed in the inner side of the bottom of the left crank head 2, and a right anti-collision inclined opening 14 matched with the upper connecting rod bushing 7 is formed in the inner side of the bottom of the right crank head 4.
The utility model discloses a crank head and crank axle integrated into one piece ensure its intensity, satisfy chain saw's demand, simultaneously, set up the anticollision indent on the crank and can prevent the collision between bearing and the crank, set up the abrasionproof indent on the crank and can reduce the wearing and tearing between antifriction bearing and the crank, extension bearing and antifriction bearing life.
Claims (5)
1. The utility model provides a special crank connecting rod assembly of high strength chain saw, includes two cranks, connects two articulate crank pins and connects the connecting rod on the crank pin, the connecting rod includes the intermediate lever, is located the lower connecting rod bush and the last connecting rod bush at intermediate lever both ends, its characterized in that: the two cranks respectively comprise an integrally formed crank head and a crank shaft, the lower connecting rod bushing and the crank pin are connected through a needle bearing, the width of the needle bearing is smaller than that of the lower connecting rod bushing, anti-collision concave grooves matched with the needle bearing are formed in the inner sides of the two cranks, the lower connecting rod bushing, the needle bearing and the crank pin are matched and pressed, the crank pin is a hollow pin, a rolling bearing and anti-abrasion concave grooves matched with the rolling bearing are formed in the two cranks, and a transmission chain wheel is arranged on one crank.
2. The special crank connecting rod assembly for the high-strength chain saw as claimed in claim 1, wherein: two cranks are left crank and right crank respectively, left side crank includes integrated into one piece's left crank head and left crank axle, right side crank includes integrated into one piece's right crank head and right crank axle, the anticollision indent is including the left anticollision indent that is located left crank head inboard and the right anticollision indent that is located right crank head inboard.
3. The special crank connecting rod assembly for the high-strength chain saw as claimed in claim 2, wherein: the left crank head upper portion is equipped with the left crank pinhole of cooperation crank pin left end, right crank head upper portion is equipped with the right crank pinhole of cooperation crank pin right-hand member, antifriction bearing is including being located left antifriction bearing on the left crank axle and being located the right antifriction bearing on the right crank axle, drive sprocket is located the right crank axle.
4. The special crank connecting rod assembly for the high-strength chain saw as claimed in claim 2, wherein: the left end of left side crank axle is equipped with the left internal thread hole that is used for the assembly, the right-hand member of right side crank axle is equipped with the right internal thread hole that is used for the assembly.
5. The special crank connecting rod assembly for the high-strength chain saw as claimed in claim 2, wherein: the abrasionproof indent is including being located overhead left abrasionproof indent of left crank and being located overhead right abrasionproof indent of right crank, the bottom inboard of left crank head is equipped with the left anticollision slash of connecting rod bush in the cooperation, the bottom inboard of right crank head is equipped with the right anticollision slash of connecting rod bush in the cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551533.3U CN210949726U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high strength chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551533.3U CN210949726U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high strength chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949726U true CN210949726U (en) | 2020-07-07 |
Family
ID=71391389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921551533.3U Expired - Fee Related CN210949726U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high strength chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949726U (en) |
-
2019
- 2019-09-18 CN CN201921551533.3U patent/CN210949726U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20200918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |