CN211174250U - High stable camshaft - Google Patents
High stable camshaft Download PDFInfo
- Publication number
- CN211174250U CN211174250U CN201922423633.4U CN201922423633U CN211174250U CN 211174250 U CN211174250 U CN 211174250U CN 201922423633 U CN201922423633 U CN 201922423633U CN 211174250 U CN211174250 U CN 211174250U
- Authority
- CN
- China
- Prior art keywords
- dabber
- camshaft
- cam
- hole
- camshaft body
- 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
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a high stable camshaft, include the camshaft body and set up the camshaft gear on the camshaft body, cam group and axle journal, the cam group includes the dabber, dabber position sleeve and cam, the dabber has the shaft hole, the connection is established on the camshaft body through the internal spline cover that sets up in the shaft hole to the dabber, the dabber position sleeve is hollow structure, the internal thread has been seted up on its inner wall, the relevant position of camshaft body is provided with the external screw thread with this internal thread looks adaptation, its tip is supported tightly at the tip of dabber in order to dabber axial positioning behind dabber position sleeve threaded connection on the camshaft body, the cam has two or more than two and along the axial direction evenly distributed of dabber at the spindle. Carry out transmission torque through the spline and carry out the mode of fixing through the screw and connect cam group and camshaft body, cup joint the dabber on the cam group on the camshaft body earlier, then fix a position the dabber through the dabber position sleeve to realize driven stability.
Description
Technical Field
The utility model belongs to the technical field of the camshaft, especially, relate to a high stable camshaft.
Background
The camshaft is one of the important parts in the piston engine, and controls the motion of the valve by utilizing the intake cam and the exhaust cam of each cylinder, so that the valve is opened and closed according to a certain working sequence and distribution phase, and the valve is ensured to have enough opening; the camshaft is provided with a camshaft gear, and gear transmission between the camshaft and the crankshaft is realized through a gear train.
The structural design and the processing quality of the camshaft play an extremely important role in the performance of the engine. Along with the design requirements of high speed, high output power, low fuel oil addition, light weight of the whole automobile, low cost input and the like of the engine, higher design requirements are also put forward for the camshaft, and the camshaft is required to be compact in structure, light in weight, high in material strength and good in wear resistance.
The chinese utility model patent with publication number CN207905876U discloses an equipment camshaft, and the technical book scheme is: the assembled camshaft comprises a cam plate and a mandrel and is characterized in that the mandrel and the cam plate are of a split structure, the cam plate is provided with an inner hole arranged on the mandrel, and the hole wall of the inner hole of the cam plate is provided with a plurality of annular grooves or internal threads; the mandrel is a steel pipe, a plurality of teeth are rolled at the joint of the outer wall of the mandrel and the cam sheet, the teeth are arranged along the axial direction of the steel pipe and are uniformly arranged at the circumferential direction of the joint, the cam sheet is connected with the mandrel through an inner hole, and an annular groove or an inner thread of the inner hole of the cam sheet is meshed with the teeth on the outer wall of the mandrel. The cam piece is installed on the mandrel in a threaded connection mode, so that the ideal materials can be selected according to the performance requirements of all parts, and the cam piece and the mandrel are assembled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical problem who exists to the aforesaid, provide a camshaft with high stability and stand wear and tear.
The purpose of the utility model is realized like this: the utility model provides a high stable camshaft, includes the camshaft body and sets up camshaft gear, cam group and axle journal on the camshaft body, the cam group has two sets ofly and divide into intake cam group and exhaust cam group, wherein, the cam group includes dabber, dabber position sleeve and cam, the dabber has the shaft hole, the connection is established through the internal spline cover that sets up in the shaft hole to the dabber on the camshaft body, the dabber position sleeve is hollow structure, has seted up the internal thread on its inner wall, the relevant position of camshaft body is provided with the external screw thread with this internal thread looks adaptation, dabber position sleeve threaded connection in its tip supports tightly on the camshaft body after its tip of dabber is in order to dabber axial positioning, the cam has two or more and along the axial direction evenly distributed of dabber in spindle.
By adopting the technical scheme, the camshaft gear is driven to rotate to drive the camshaft body to rotate, so that the intake cam group and the exhaust cam group are driven to rotate, and the opening and closing of the air valve are realized; to large-scale engine, its transmission torque is great, and consequently the mode that adopts threaded connection is not suitable for, appears becoming flexible easily, the phenomenon of skidding, to this the utility model discloses a spline carries out transmission torque and carries out the mode of fixing through the screw thread and connect cam group and camshaft body, connects the core axle on the cam group on the camshaft body earlier, then fixes a position the dabber through the dabber position sleeve to realize driven stability.
The utility model discloses further set up to: the internal spline in the mandrel shaft hole is a rectangular spline, and the rectangular spline is provided with a plurality of splines which are uniformly distributed along the circumferential direction.
Through adopting above-mentioned technical scheme, be connected through a plurality of teeth and groove to increase the area of contact between dabber and the camshaft body, and then make the dabber can bear great load.
The utility model discloses further set up to: the outer wall of the mandrel is provided with a through hole leading to an internal spline in the shaft hole of the mandrel, a positioning column is arranged in the through hole in a sliding mode, the length of the positioning column is larger than the depth of the through hole, two ends of the positioning column can extend out of the inner port and the outer port of the through hole, and the inner wall of the cam is provided with a positioning groove hole for the end portion of the positioning column to be embedded into so as to fix the positioning column on the mandrel.
Through adopting the above-mentioned technical scheme, for the convenience to the installation of cam, set up the positioning groove hole on the cam to this, set up through-hole and reference column at the dabber, remove the reference column to the inner port of through-hole earlier, then cup joint the cam at the spindle, then rotate the dabber, imbed the reference column in the positioning groove hole, cup joint the dabber at last on the camshaft body, this in-process, external splines on the camshaft body imbed gradually on the internal spline of dabber, and plug up the inner port of through-hole, carry on spacingly with the reference column, thereby reach the location to the cam, this assembly mode is simple, and practical, only need to connect the dabber position sleeve at last and can accomplish the installation to the cam group on the camshaft body.
The utility model discloses further set up to: and one end of the positioning column, which is communicated with the internal spline, is hemispherical.
Through adopting above-mentioned technical scheme, the one end that accesss to the internal spline with the reference column sets to hemispherical, and the dabber cup joints the in-process on the camshaft body, and external spline can promote the reference column to the location slotted hole removal on the cam through the sphere on the reference column after contacting the reference column, need not rotate the dabber and can imbed the reference column locating slot downthehole to be convenient for install.
The utility model discloses further set up to: the positioning column is in a step shape, and an annular flange for limiting the positioning column to be separated from the port is arranged on the inner wall of the inner port of the through hole.
Through adopting above-mentioned technical scheme to carry on spacingly to the reference column, in order to prevent that the dabber from not installing on the camshaft body, the reference column drops from the interior port of dabber through-hole.
The utility model discloses further set up to: the through-hole has a plurality ofly and evenly distributed along circumferential direction.
Through adopting above-mentioned technical scheme, through setting up a plurality of through-holes and reference column to improve the area of contact between cam and the dabber, and then improve the joint strength between the two.
The utility model discloses further set up to: the camshaft body is made of nodular cast iron.
By adopting the technical scheme, the nodular cast iron is a high-strength cast iron material, the comprehensive performance of the nodular cast iron is close to that of steel, and the nodular cast iron material has high strength, good toughness and good wear resistance and is used for manufacturing the camshaft.
The utility model has the advantages that: 1. the cam set and the camshaft body are connected in a mode of transmitting torque through a spline and fixing through threads, a core shaft on the cam set is sleeved on the camshaft body, and then the core shaft is positioned through a core shaft positioning sleeve, so that the stability of transmission is realized; 2. in order to facilitate the installation of the cam, a positioning slot hole is arranged on the cam, and a through hole and a positioning column are arranged on the mandrel, so that the assembly mode is simple and practical; 3. the nodular cast iron is a high-strength cast iron material, has comprehensive performance close to that of steel, has high strength and good toughness and wear resistance, and is used for manufacturing the camshaft.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
the reference numbers in the figures are: 1. a camshaft body; 2. a camshaft gear; 3. a cam group; 31. a mandrel; 311. an internal spline; 312. a through hole; 313. a positioning column; 314. an annular flange; 32. a mandrel positioning sleeve; 33. a cam; 331. positioning the slotted hole; 301. an intake cam group; 302. an exhaust cam group; 4. and (3) a shaft neck.
Detailed Description
In order to make the technical solutions in the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings:
a highly stable camshaft, as shown in FIG. 1, FIG. 2 and FIG. 3, comprises a camshaft body 1, and a camshaft gear 2, a cam group 3 and a journal 4 arranged on the camshaft body 1, the cam group 3 is divided into two groups, an intake cam group 301 and an exhaust cam group 302, wherein, the cam group 3 comprises a mandrel 31, a mandrel positioning sleeve 32 and a cam 33, the mandrel 31 is provided with a shaft hole, the mandrel 31 is sleeved and connected on the camshaft body 1 through an internal spline 311 arranged in the shaft hole, the mandrel positioning sleeve 32 is of a hollow structure, the internal thread has been seted up on its inner wall, and the relevant position of camshaft body 1 is provided with the external screw thread with this internal thread looks adaptation, and its tip supports tightly at the tip of dabber 31 in order to dabber 31 axial positioning after dabber position sleeve 32 threaded connection is on camshaft body 1, and cam 33 has two or more and follows the axial direction evenly distributed of dabber 31 on dabber 31.
The camshaft gear 2 is driven to rotate to drive the camshaft body 1 to rotate, so that the intake cam group 301 and the exhaust cam group 302 are driven to rotate, and the opening and closing of the valve are realized; to large-scale engine, its transmission torque is great, and consequently the mode that adopts threaded connection is not suitable for, appears becoming flexible easily, the phenomenon of skidding, to this the utility model discloses a spline carries out transmission torque and carries out the mode of fixing through the screw thread and connect cam group 3 and camshaft body 1, cup joints dabber 31 on cam group 3 on camshaft body 1 earlier, then fixes a position dabber 31 through dabber position sleeve 32 to realize driven stability.
The internal spline 311 of the shaft hole of the mandrel 31 is a plurality of rectangular splines which are uniformly distributed in the circumferential direction. The teeth and the grooves are connected, so that the contact area between the mandrel 31 and the camshaft body 1 is increased, and the mandrel 31 can bear larger load.
The outer wall of the mandrel 31 is provided with a through hole 312 leading to the internal spline 311 of the shaft hole, a positioning column 313 is arranged in the through hole 312 in a sliding manner, the length of the positioning column 313 is larger than the depth of the through hole 312, two ends of the positioning column 313 can extend out of the inner port and the outer port of the through hole 312, and the inner wall of the cam 33 is provided with a positioning groove hole 331 for the end part of the positioning column 313 to be embedded into so as to fix the positioning column onto the.
In order to facilitate the installation of the cam 33, a positioning slot 331 is provided on the cam 33, a through hole 312 and a positioning column 313 are provided on the mandrel 31, the positioning column 313 is moved towards an inner port of the through hole 312, the cam 33 is sleeved on the mandrel 31, the mandrel 31 is rotated, the positioning column 313 is embedded into the positioning slot 331, the mandrel 31 is sleeved on the camshaft body 1, in the process, an external spline on the camshaft body 1 is gradually embedded into an internal spline 311 on the mandrel 31, the inner port of the through hole 312 is blocked, the positioning column 313 is limited, so that the cam 33 is positioned, the assembling mode is simple and practical, and finally, the installation of the cam set 3 can be completed only by connecting the mandrel positioning sleeve 32 on the camshaft body 1.
Preferably, one end of the positioning post 313 leading to the internal spline 311 is hemispherical. In the process that the mandrel 31 is sleeved on the camshaft body 1, after the external spline contacts the positioning column 313, the spherical surface on the positioning column 313 can push the positioning column 313 to move towards the positioning groove hole 331 on the cam 33, and the positioning column 313 can be embedded into the positioning groove hole 331 without rotating the mandrel 31, so that the installation is convenient.
Preferably, in order to limit the position of the positioning post 313 and prevent the positioning post 313 from falling off from the inner port of the through hole 312 of the spindle 31 when the spindle 31 is not mounted on the camshaft body 1, the positioning post 313 is provided in a stepped structure, and an annular flange 314 for limiting the position of the positioning post 313 from falling off from the inner port is provided on the inner wall of the inner port of the through hole 312.
Optimally, the through holes 312 are uniformly distributed along the circumferential direction, and the contact area between the cam 33 and the mandrel 31 is increased by arranging the through holes 312 and the positioning columns 313, so that the connection strength between the cam 33 and the mandrel 31 is increased.
Optimally, the nodular cast iron is a high-strength cast iron material, the comprehensive performance of the nodular cast iron is close to that of steel, the nodular cast iron has higher strength and good toughness and wear resistance, and the nodular cast iron material is adopted to manufacture the camshaft body.
The above embodiments are only preferred embodiments of the present invention, not all embodiments, and other embodiments obtained based on the above embodiments by those skilled in the art without any creative work shall fall within the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a high stable camshaft, includes camshaft body (1) and sets up camshaft gear (2), cam group (3) and journal (4) on camshaft body (1), cam group (3) have two sets ofly and divide into intake cam group (301) and exhaust cam group (302), its characterized in that: cam group (3) include dabber (31), dabber position sleeve (32) and cam (33), dabber (31) have the shaft hole, dabber (31) establish through internal spline (311) cover that the shaft hole was seted up and are connected on camshaft body (1), dabber position sleeve (32) are hollow structure, have seted up the internal thread on its inner wall, the relevant position of camshaft body (1) is provided with the external screw thread with this internal thread looks adaptation, dabber (31) position sleeve threaded connection in its tip supports tightly behind camshaft body (1) the tip of dabber (31) is in order to dabber (31) axial positioning, cam (33) have more than two or two and along the axial direction evenly distributed of dabber (31) on dabber (31).
2. A highly stable camshaft as claimed in claim 1, wherein: the internal spline (311) in the shaft hole of the mandrel (31) is a rectangular spline, and the rectangular splines are multiple and are uniformly distributed along the circumferential direction.
3. A highly stable camshaft as claimed in claim 2, wherein: the outer wall of the mandrel (31) is provided with a through hole (312) leading to an inner spline (311) of the shaft hole, a positioning column (313) is arranged in the through hole (312) in a sliding mode, the length of the positioning column (313) is larger than the depth of the through hole (312), the two ends of the positioning column (313) can extend out of the inner port and the outer port of the through hole (312), and the inner wall of the cam (33) is provided with a positioning groove hole (331) for enabling the end portion of the positioning column (313) to be embedded into so as to fix the positioning column on the mandrel (31).
4. A highly stable camshaft as claimed in claim 3, wherein: one end of the positioning column (313) leading to the internal spline (311) is hemispherical.
5. A highly stable camshaft as claimed in claim 3, wherein: the positioning column (313) is in a step shape, and an annular flange (314) for limiting the positioning column (313) to be separated from the port is arranged on the inner wall of the inner port of the through hole (312).
6. A highly stable camshaft as claimed in any one of claims 3 to 5, wherein: the through holes (312) are distributed uniformly along the circumferential direction.
7. A highly stable camshaft as claimed in claim 1, wherein: the camshaft body (1) is made of a ball-milling cast iron material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423633.4U CN211174250U (en) | 2019-12-25 | 2019-12-25 | High stable camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922423633.4U CN211174250U (en) | 2019-12-25 | 2019-12-25 | High stable camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174250U true CN211174250U (en) | 2020-08-04 |
Family
ID=71806853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922423633.4U Active CN211174250U (en) | 2019-12-25 | 2019-12-25 | High stable camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901750A (en) * | 2021-01-12 | 2021-06-04 | 东风柳州汽车有限公司 | Gear and automobile |
-
2019
- 2019-12-25 CN CN201922423633.4U patent/CN211174250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901750A (en) * | 2021-01-12 | 2021-06-04 | 东风柳州汽车有限公司 | Gear and automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101761591A (en) | Roller type electromagnetic clutch | |
| CN211174250U (en) | High stable camshaft | |
| CN110185763A (en) | A kind of stepless transmission | |
| CN101725666B (en) | Torsional vibration damper and rotation unit with the same | |
| CN100504052C (en) | Rotating straight axle four-stroke piston engine device | |
| CN203822940U (en) | Engine balance shaft mechanism | |
| CN208950754U (en) | A kind of Design of High Pressure Common Rail Diesel Engine common rail pump drive | |
| CN206904049U (en) | Electric tool output shaft | |
| US20090074340A1 (en) | Modular Bearing Unit | |
| CN207033519U (en) | A kind of hollow assembled camshaft blocked up with powder metallurgy VVT ends | |
| CN207420719U (en) | A kind of no bent-axis hydraulic Transmission Engine | |
| CN206555024U (en) | A kind of hydraulic motor-driven variable-compression-ratio piston | |
| CN206592434U (en) | A kind of turbocharger full floating bearing | |
| CN208153528U (en) | The crankshaft group of three-cylinder engine | |
| CN203051685U (en) | Variable gear | |
| CN207920797U (en) | Spindle drive assembly and piston type air compressor comprising it | |
| CN220227739U (en) | Light high-strength belt pulley | |
| CN208559489U (en) | A kind of automatic Pilot steering wheel transmission mechanism and surface car | |
| CN210799703U (en) | Assembled camshaft | |
| CN219692237U (en) | Planetary transmission structure convenient to dismouting | |
| CN218118492U (en) | Automobile speed changing shaft | |
| CN220522644U (en) | Combined cam shaft | |
| CN219492987U (en) | Gearbox output structure ring flange | |
| CN219865860U (en) | Clutch transmission shaft structure | |
| CN220037380U (en) | Herringbone shaft with internal spline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 No. 88, Renmin Tang, Baiyan village, electromechanical Industrial Park, Yucheng street, Yuhuan City, Taizhou City, Zhejiang Province (self declaration) Patentee after: Taizhou Jieyu Machinery Manufacturing Co.,Ltd. Address before: 317600 Dongqing, Chengzhong Village, Yucheng street, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: Yuhuan Jieyu Machinery Manufacturing Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A highly stable camshaft Effective date of registration: 20221020 Granted publication date: 20200804 Pledgee: Taizhou Yuhuan sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: Taizhou Jieyu Machinery Manufacturing Co.,Ltd. Registration number: Y2022330002720 |