CN212455410U - Shaft lock cam with step on outer diameter - Google Patents
Shaft lock cam with step on outer diameter Download PDFInfo
- Publication number
- CN212455410U CN212455410U CN202020875342.9U CN202020875342U CN212455410U CN 212455410 U CN212455410 U CN 212455410U CN 202020875342 U CN202020875342 U CN 202020875342U CN 212455410 U CN212455410 U CN 212455410U
- Authority
- CN
- China
- Prior art keywords
- cam body
- kingpin
- backing plate
- cam
- plectrum
- 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.)
- Active
Links
Images
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model belongs to the technical field of the powder metallurgy part manufacturing technique and specifically relates to an axle lock cam of step is taken to external diameter, this axle lock cam comprises cam body, kingpin plectrum, the middle part of cam body be equipped with the output shaft hole, the periphery of cam body is connected with the kingpin plectrum, establish to axle lock inclined plane cam body outer wall between the kingpin plectrum, characterized in that cam body side be equipped with cam body and kingpin plectrum integrated into one piece's kingpin backing plate, the external diameter of kingpin backing plate the same with the kingpin plectrum, the outer fringe of kingpin backing plate forms the circular form with the same axle center of cam body with kingpin plectrum outer end, the inner edge of kingpin backing plate is connected with cam body and kingpin plectrum integrated into one piece and makes cam body and kingpin backing plate be the stair structure, have simple structure, convenient to use, good wear resistance, high mechanical strength and the like.
Description
Technical Field
The utility model belongs to the technical field of powder metallurgy part manufacturing technology and specifically relates to a simple structure, convenient to use, processing cost are low, assembly efficiency is high, the wearability is good, the high external diameter of mechanical strength takes the shaft lock cam of step.
Background
As is known, the powder metallurgy shaft locking cam is a conventional product in powder metallurgy parts, the dosage of the powder metallurgy shaft locking cam accounts for more than 10% of the whole electric drill industry, and the design of the powder metallurgy shaft locking cam directly influences the cost of an electric drill. Therefore, the reasonable design is very important for reducing the overall cost of the electric drill, the existing shaft lock cam at present consists of a cam body and a roller pin shifting piece, an output shaft hole is arranged in the middle of the cam body, the periphery of the cam body is connected with the roller pin shifting piece, in the actual use process, a gasket is arranged below the shaft lock cam, then the shaft lock roller pin, a shaft lock ring and a shaft lock planet carrier are assembled on the outer side of the shaft lock cam, as the gasket is a stamping part and is very thin, a plurality of gaskets are required to be padded to meet the requirements, in the gasket requiring process, the flatness requirement on the gasket is very large, the processing is very inconvenient, the use of the plurality of gaskets leads to the reduction of the precision, particularly the shaft lock cam is used under the severe working conditions of high temperature and high rotating speed, the wear resistance is a main factor influencing the service life of the shaft lock cam, and the increase of the clearance between the shaft lock roller pin and the, resulting in drill rejection.
Disclosure of Invention
The utility model aims at solving the deficiencies of the prior art, providing a simple structure, convenient to use, processing cost are low, assembly efficiency is high, the wearability is good, the high external diameter of mechanical strength takes the shaft lock cam of step.
The utility model provides a technical scheme that its technical problem adopted is:
the shaft lock cam with the step on the outer diameter is composed of a cam body and roller pin shifting pieces, wherein an output shaft hole is formed in the middle of the cam body, the periphery of the cam body is connected with the roller pin shifting pieces, and the outer wall of the cam body between the roller pin shifting pieces is designed to be a shaft lock inclined surface.
The bearing plate establish between adjacent bearing plectrum and be connected with the tip integrated into one piece of cam body, make the bearing plate after the assembly practice thrift the processing cost in the inside of axle lock circle.
The thickness of the needle rolling cushion plate is 1mm ~2mm, also can guarantee the wearability when guaranteeing structural strength.
The external diameter of cam body be 15mm ~25 mm, the thickness of cam body be 6mm ~10 mm.
The utility model discloses because cam body side be equipped with cam body and kingpin plectrum integrated into one piece's kingpin backing plate, the external diameter of kingpin backing plate the same with the external diameter of kingpin plectrum, the outer fringe of kingpin backing plate forms the circular form with cam body coaxial with the outer end of kingpin plectrum, the inner edge and the cam body and kingpin plectrum integrated into one piece of kingpin backing plate are connected, the kingpin backing plate establish between adjacent kingpin plectrum and be connected with cam body's tip integrated into one piece and make cam body and kingpin backing plate be the stair structure, make the kingpin backing plate after the assembly in the inside of axle lock circle, practice thrift the processing cost, the thickness of kingpin backing plate be 1mm ~2mm, also can guarantee the wearability when guaranteeing structural strength, the external diameter of cam body be 15mm ~25 mm, the thickness of cam body be 6mm ~10mm, have simple structure, Convenient use, low processing cost, high assembly efficiency, good wear resistance, high mechanical strength and the like.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is an assembly view of the present invention.
Fig. 4 is a sectional view B-B of fig. 3.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in the attached drawings, the shaft lock cam with the step on the outer diameter consists of a cam body 1 and a needle dial plate 2, an output shaft hole 3 is arranged in the middle of the cam body 1, the outer periphery of the cam body 1 is connected with the needle dial plate 2, and the outer wall of the cam body 1 between the needle dial plates 2 is provided with a shaft lock inclined surface 4, and is characterized in that a needle backing plate 5 which is integrally formed with the cam body 1 and the needle dial plate 2 is arranged on the side surface of the cam body 1, the outer diameter of the needle backing plate 5 is the same as that of the needle dial plate 2, the outer edge of the needle backing plate 5 and the outer end of the needle dial plate 2 form a circular shape which is coaxial with the cam body 1, the inner edge of the needle backing plate 5 is integrally connected with the cam body 1 and the needle dial plate 2, the needle backing plate 5 is arranged between the adjacent needle dial plates 2 and is integrally connected with the end part of the cam body 1, so that the cam body 1 and, the assembled needle roller backing plate 5 is arranged inside the shaft lock ring, the processing cost is saved, the thickness of the needle roller backing plate 5 is 1 mm-2 mm, the structural strength is guaranteed, meanwhile, the wear resistance can be guaranteed, the outer diameter of the cam body 1 is 15 mm-25 mm, and the thickness of the cam body 1 is 6 mm-10 mm.
When the utility model is used, firstly, the shaft lock cam of the design is manufactured, and the sufficient wear resistance and hardness of the shaft lock cam are ensured by adopting the processes of forming, sintering, heat treatment, vibration grinding and oil immersion, when the process is manufactured, the roller pin backing plate 5 is integrally manufactured by powder metallurgy, thus, the strength and the wear resistance of the roller pin backing plate 5 are both increased, and the subsequent installation of gasket parts is saved, thereby achieving the purposes of reducing cost and improving assembly efficiency, when in need of assembly, the shaft lock roller pin 6, the shaft lock ring 7 and the shaft lock planet carrier 8 are assembled outside the shaft lock cam, and the wear resistance and the strength can be ensured at the same time of ensuring normal use, because the roller pin backing plate 5 which is integrally formed with the cam body 1 and the plectrum 2 is arranged on the side surface of the cam body 1, the outer diameter of the roller pin backing plate 5 is the same as the outer diameter of the pinum plectrum 2, the outer edge of the needle roller backing plate 5 and the outer end of the needle roller plectrum 2 form a circular shape coaxial with the cam body 1, the inner edge of the needle roller backing plate 5 is integrally connected with the cam body 1 and the needle roller plectrum 2 to enable the cam body 1 and the needle roller backing plate 5 to be in a step structure, the needle roller backing plate 5 is arranged between the adjacent needle roller plectrum 2 and is integrally connected with the end part of the cam body 1 to enable the assembled needle roller backing plate 5 to be in the shaft locking ring 7, the processing cost is saved, the thickness of the needle roller backing plate 5 is 1-2 mm, the wear resistance can be guaranteed while the structural strength is guaranteed, the outer diameter of the cam body 1 is 15-25 mm, and the thickness of the cam body 1 is 6-10 mm.
Claims (4)
1. The shaft lock cam with the step on the outer diameter is composed of a cam body and roller pin shifting pieces, wherein an output shaft hole is formed in the middle of the cam body, the periphery of the cam body is connected with the roller pin shifting pieces, and the outer wall of the cam body between the roller pin shifting pieces is designed to be a shaft lock inclined surface.
2. The stepped outer diameter shaft lock cam of claim 1, wherein the needle backing plate is disposed between adjacent needle fingers and is integrally formed with the end of the cam body such that the needle backing plate is disposed within the shaft lock collar.
3. The shaft lock cam with a step on the outer diameter as claimed in claim 1, wherein the thickness of the needle roller backing plate is 1mm to 2 mm.
4. The shaft lock cam with the step on the outer diameter as claimed in claim 1, wherein the outer diameter of the cam body is 15mm to 25 mm, and the thickness of the cam body is 6mm to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020875342.9U CN212455410U (en) | 2020-05-22 | 2020-05-22 | Shaft lock cam with step on outer diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020875342.9U CN212455410U (en) | 2020-05-22 | 2020-05-22 | Shaft lock cam with step on outer diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455410U true CN212455410U (en) | 2021-02-02 |
Family
ID=74500903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020875342.9U Active CN212455410U (en) | 2020-05-22 | 2020-05-22 | Shaft lock cam with step on outer diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455410U (en) |
-
2020
- 2020-05-22 CN CN202020875342.9U patent/CN212455410U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103691958B (en) | A kind of powder metallurgical gear processing technology | |
| CN101424296A (en) | Method for processing crank connecting rod | |
| CN212455410U (en) | Shaft lock cam with step on outer diameter | |
| CN201231299Y (en) | Cold-heading roller punch die | |
| CN101788018A (en) | Novel high strength and high stability stamping retainer of cylinder roller bearing | |
| CN211175316U (en) | Shaft lock ring with step in inner hole | |
| CN201003544Y (en) | Light and narrow series double row symmetrical spherical roller bearing with solid cage | |
| CN210889326U (en) | Pumping device, rotary compressor and refrigeration equipment | |
| CN211820390U (en) | Cambered surface needle roller bearing | |
| CN201696499U (en) | Retainer of ball bearing with four-point contact | |
| CN212708736U (en) | Simple hub unit | |
| CN201231297Y (en) | Hot-forging die | |
| CN211778462U (en) | Planet wheel shaft and planet gear mechanism | |
| CN212455414U (en) | Axially fixed inner gear ring | |
| CN112901665A (en) | Rolling bearing device with rotatable bearing pressing plate | |
| CN210593834U (en) | Chain wheel of sintering hot ore chain plate machine | |
| CN218953957U (en) | Special-shaped gear | |
| CN101239397B (en) | Method for manufacturing automobile mold self-lubricating composition metal concave-convex V type guide plate | |
| CN214617743U (en) | Gear structure | |
| CN209781514U (en) | Light-duty derailleur powder metallurgy synchronizer toothholder | |
| CN219452808U (en) | Gear structure of binding material | |
| CN202182111U (en) | Embedded self-lubricating bearing | |
| CN215861379U (en) | Rolling bearing device with rotatable bearing pressing plate | |
| CN218377601U (en) | Novel gear box motor | |
| CN201042726Y (en) | Automobile wheel mold with wearing coat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |