CN210949737U - Special crank connecting rod assembly of high stability chain saw - Google Patents
Special crank connecting rod assembly of high stability chain saw Download PDFInfo
- Publication number
- CN210949737U CN210949737U CN201921552214.4U CN201921552214U CN210949737U CN 210949737 U CN210949737 U CN 210949737U CN 201921552214 U CN201921552214 U CN 201921552214U CN 210949737 U CN210949737 U CN 210949737U
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- CN
- China
- Prior art keywords
- crank
- connecting rod
- bearing
- lower connecting
- pin
- 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
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Abstract
The utility model discloses a special crank connecting rod assembly of high stability chain saw, including two cranks, connect two articulate crank pins and connect the connecting rod on the crank pin, the connecting rod includes the intermediate lever, be located the lower connecting rod bush and the last connecting rod bush at intermediate lever both ends, 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, two articulate inboards all are equipped with cooperation bearing's crashproof indent, lower connecting rod bush, bearing and crank pin pair the pressure equipment, the crank pin is hollow pin, all be equipped with antifriction bearing and cooperation antifriction bearing's spacer on two cranks, the high sum of intermediate lever and lower connecting rod bush is greater than articulate height. The utility model discloses an adopt the spacer to separate between antifriction bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong antifriction bearing's life need not to process the abrasionproof indent on the crank, and the processing cost of falling ends ensures that the crank rotates reliable and stable.
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 stability 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, produce the friction easily between antifriction bearing and the crank lateral surface that ordinary crank connecting rod assembly's crank both ends are connected, for reducing wear, set up the abrasionproof indent usually on the crank, not only processing is troublesome, increases the processing cost, and the abrasionproof indent is too shallow moreover, still wears easily, and the abrasionproof indent is too dark, will influence articulate intensity.
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 one kind and adopt the spacer to separate between antifriction bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong antifriction bearing's life, need not to process the abrasionproof indent on the crank, the processing cost of falling ends improves machining efficiency, and the high sum of intermediate lever and lower connecting rod bush is greater than articulate height simultaneously, ensures the special crank connecting rod assembly of crank rotation reliable and stable high stability chain saw.
The technical scheme of the utility model: the utility model provides a special crank connecting rod assembly of high stability 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 upper connecting rod bush at intermediate lever both ends, 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 the crashproof indent of cooperation bearing, 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 the spacer of cooperation antifriction bearing on two cranks, the diameter of spacer is less than antifriction bearing's diameter, is equipped with drive sprocket on one of them crank, the high sum of intermediate lever and lower connecting rod bush is greater than articulate height.
The utility model discloses an adopt the spacer to separate between antifriction bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong antifriction bearing's life need not to process the abrasionproof indent on the crank, and the processing cost of falling ends improves machining efficiency, and the high sum of intermediate lever and lower connecting rod bush is greater than articulate height simultaneously, ensures that the crank rotates reliable and stable.
Preferably, the diameter of the rolling bearing is larger than the diameter of the drive sprocket.
The structure further improves the transmission stability.
Preferably, two cranks are left crank and right crank respectively, left side crank includes left crank head and left crank axle, right crank includes 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, a key groove is formed in the left crank shaft, and the spacer comprises a left spacer matched with the left rolling bearing and a right spacer matched with the right rolling bearing.
The structure is convenient to assemble and ensures the assembly firmness.
The utility model discloses an adopt the spacer to separate between antifriction bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong antifriction bearing's life need not to process the abrasionproof indent on the crank, and the processing cost of falling ends improves machining efficiency, and the high sum of intermediate lever and lower connecting rod bush is greater than articulate height simultaneously, ensures that the crank rotates reliable and stable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a right crank of the present invention;
in the drawing, 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 crank pin, 14, a transmission chain wheel, 15, a left spacer, 16, a right spacer and 17 are key grooves.
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 and 2, a crank-link assembly for a chain saw with high stability comprises two cranks, a crank pin 13 for connecting the two cranks, and a link connected to the crank pin 13, wherein the link comprises a middle rod 5, a lower link bushing 6 and an upper link bushing 7 at two ends of the middle rod 5. Lower connecting rod bush 6 is connected through bearing 8 with crank pin 13 between, bearing 8's width is less than lower connecting rod bush 6's width, two articulate inboards all are equipped with the crashproof indent of cooperation bearing, lower connecting rod bush 6, bearing 8 and crank pin 13 pair the pressure equipment, crank pin 13 is hollow pin, all be equipped with antifriction bearing and the spacer bush of cooperation antifriction bearing on two cranks, the diameter of spacer bush is less than antifriction bearing's diameter, be equipped with drive sprocket 14 on one of them crank, the high sum of intermediate lever 5 and lower connecting rod bush 6 is greater than articulate height. The diameter of the rolling bearing is larger than the diameter of the drive sprocket 14. Two cranks are left crank and right crank respectively, and left crank includes left crank head 2 and left crank axle 1, right crank includes 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 13, 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 13, 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 14 is positioned on the right crank shaft 3. The left crank shaft 1 is provided with a key groove 17, and the spacer comprises a left spacer 15 matched with the left rolling bearing 9 and a right spacer 16 matched with the right rolling bearing 10.
The utility model discloses an adopt the spacer to separate between antifriction bearing and the crank, reduce the wearing and tearing between antifriction bearing and the crank, prolong antifriction bearing's life need not to process the abrasionproof indent on the crank, and the processing cost of falling ends improves machining efficiency, and the high sum of intermediate lever and lower connecting rod bush is greater than articulate height simultaneously, ensures that the crank rotates reliable and stable.
Claims (5)
1. The utility model provides a special crank connecting rod assembly of high stability 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 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, the inner sides of the two cranks are respectively provided with an anti-collision indent matched with the needle bearing, the lower connecting rod bushing, the needle bearing and the crank pin are matched and pressed, the crank pin is a hollow pin, the two cranks are respectively provided with a rolling bearing and a spacer bush matched with the rolling bearing, the diameter of the spacer bush is smaller than that of the rolling bearing, one of the cranks is provided with a transmission chain wheel, and the sum of the heights of the middle rod and the lower connecting rod bushing is larger than that of.
2. The crank connecting rod assembly special for the high-stability chain saw as claimed in claim 1, wherein: the diameter of the rolling bearing is larger than that of the transmission chain wheel.
3. The crank connecting rod assembly special for the high-stability chain saw as claimed in claim 1, wherein: two cranks are left crank and right crank respectively, left side crank includes left crank head and left crank axle, right side crank includes 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.
4. The crank connecting rod assembly special for the high-stability chain saw as claimed in claim 3, 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.
5. The crank connecting rod assembly special for the high-stability chain saw as claimed in claim 3, wherein: the left crank shaft is provided with a key groove, and the spacer bush comprises a left spacer bush matched with the left rolling bearing and a right spacer bush matched with the right rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552214.4U CN210949737U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high stability chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552214.4U CN210949737U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high stability chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210949737U true CN210949737U (en) | 2020-07-07 |
Family
ID=71386317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921552214.4U Expired - Fee Related CN210949737U (en) | 2019-09-18 | 2019-09-18 | Special crank connecting rod assembly of high stability chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210949737U (en) |
-
2019
- 2019-09-18 CN CN201921552214.4U patent/CN210949737U/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 |