CN211549797U

CN211549797U - Air inlet and outlet rocker arm

Info

Publication number: CN211549797U
Application number: CN201922125257.0U
Authority: CN
Inventors: 汪涛; 苏子刚; 付同林
Original assignee: Linqing Xinke Precision Machinery Co ltd
Current assignee: Linqing Xinke Precision Machinery Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-22
Anticipated expiration: 2029-12-02

Abstract

The utility model provides an intake and exhaust rocking arm, include: rocker arm seat, rotating shaft and rocker arm; the rotating shaft is connected between the rocker arm seats, the rocker arm comprises a rocker arm body, a rocker arm hole is formed in the rocker arm body, the rocker arm hole is in assembly connection with the rotating shaft, a transmission part and a driving part are respectively arranged on the two sides of the central axis of the rocker arm hole on the rocker arm body, the transmission part comprises two parallel rib plates which are arranged at intervals, clamping plates are arranged at the bottoms of the rib plates in an extending mode, the clamping plates extend towards the lower portion of the rocker arm, roller recesses are formed in the opposite surfaces between the two clamping plates, rollers are arranged in the roller recesses, the rotating axes of the rollers are in the horizontal direction, and the clamping plates can limit the movement of a cam abutted against a roller bearing connected with the transmission, and then guarantee the stability that roller bearing and cam are connected for the cam assembles to between the splint through the gyro wheel from bottom to top, can improve the assembly efficiency of cam and rocking arm assembly under the prerequisite that the splint were set up to the floor bottom.

Description

Air inlet and outlet rocker arm

Technical Field

The utility model relates to an engine equipment technical field especially relates to an advance exhaust rocking arm.

Background

With the rapid development of social economy, automobiles have come into common families, people also put forward higher and higher requirements on the dynamic property and the economy of the automobiles, the automobiles are promoted to be developed towards the directions of durability, high speed, low oil consumption and low emission, and engines are used as core components of the automobiles and put forward higher requirements on the performance of the automobiles. Rocker arms of engines are one of key parts in automobile engines, and improvement of reliability, light weight, long service life and the like are targets for designing and manufacturing rocker arms.

The rocker arm is sleeved on a rotating shaft of the rocker arm seat, one end of the rocker arm is hinged with a roller bearing, the other end of the rocker arm relative to a rotating center is connected with the end part of the valve rod, the roller bearing is driven by a cam, the other end of the rocker arm pushes the valve rod to move under the lever principle, and the valve rod realizes the control effect on the air inlet and the air exhaust of the engine. However, the roller bearing connected to the conventional rocker arm is driven by the cam to rotate, and if the cam moves in the axial direction, the contact of the cam with one end of the rocker arm is affected, so that the driving of the rocker arm is affected, and the working performance of the engine is affected.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem to be solved by the present invention is: the contact of the roller bearing connected with the rocker arm and the cam is ensured, the cam connected with the rocker arm is prevented from moving in the axial direction, the assembly of the cam and the rocker arm assembly is facilitated on the basis of the structure, and the assembly workload is reduced.

In order to achieve the above object, the present invention provides an intake and exhaust rocker arm, which includes: rocker arm seat, rotating shaft and rocker arm; the rotating shaft is connected between the rocker arm seats, the rocker arms are rotatably connected with the rotating shaft, and the rocker arms can rotate relative to the rotating shaft; the rocker arm comprises a rocker arm body, a rocker arm hole is formed in the rocker arm body, the rocker arm hole is in assembly connection with the rotating shaft, and a transmission part and a driving part are respectively arranged on two sides of the rocker arm body, which are opposite to the central axis of the rocker arm hole; the driving part is connected with the valve rod; the transmission portion includes that two are parallel just the interval sets up the floor, two fixed connection crossbeam between the floor, set up the commentaries on classics hole on the floor, the axis in commentaries on classics hole with the axis in rocker arm hole parallels, transmission portion links to each other with roller bearing, two the bottom extension of floor sets up splint, splint orientation the below of rocker arm extends the setting, the plane of splint with the axis in rocker arm hole is mutually perpendicular, two relative between the splint sets up the gyro wheel concave seat on the surface, set up the gyro wheel in the gyro wheel concave seat, the gyro wheel with the gyro wheel concave seat passes through the minor axis switching and links to each other, the rotation axis of gyro wheel is the horizontal direction.

Furthermore, the driving part is provided with a connecting hole, the connecting hole is used for being connected with a valve rod, and the axis of the connecting hole is perpendicular to the axis of the rocker arm hole.

Further, the transmission part, the driving part and the rocker arm body are integrally formed.

Further, the diameter size of the rocker arm hole is larger than that of the rotating hole.

Compared with the prior art, the utility model provides an advance exhaust rocking arm, include: rocker arm seat, rotating shaft and rocker arm; the rotating shaft is connected between the rocker arm seats, the rocker arms are rotationally connected with the rotating shaft, and the rocker arms can rotate relative to the rotating shaft; the rocker arm comprises a rocker arm body, a rocker arm hole is formed in the rocker arm body, the rocker arm hole is in assembly connection with the rotating shaft, and a transmission part and a driving part are respectively arranged on the two sides of the rocker arm body, which are opposite to the central axis of the rocker arm hole; the driving part is connected with the valve rod; the transmission part comprises two ribbed plates which are arranged in parallel and at intervals, a cross beam is fixedly connected between the two ribbed plates, rotating holes are formed in the ribbed plates, the axes of the rotating holes are parallel to the axes of the rocker arm holes, the transmission part is connected with the roller bearings, clamping plates are arranged at the bottoms of the two ribbed plates in an extending mode and extend towards the lower portion of the rocker arm, roller recesses are formed in the opposite surfaces of the two clamping plates, rollers are arranged in the roller recesses and are connected with the roller recesses through short shaft switching, the rotating axes of the rollers are in the horizontal direction, the clamping plates can limit the axial movement of a cam abutted against the roller bearings connected with the transmission part, the stability of the roller bearings and the cam is further guaranteed, the cam is prevented from moving in the axial direction to influence the contact area of the roller bearings, the arranged rollers can facilitate the assembly of the cam between the clamping plates, and enable the cam to be assembled between the, the assembly efficiency of the cam and the rocker arm assembly can be improved on the premise that the clamping plate is arranged at the bottom of the rib plate.

Drawings

Fig. 1 is a schematic structural view of an intake and exhaust rocker arm in an embodiment of the present invention; FIG. 2 is a schematic structural view of a rocker arm in an intake and exhaust rocker arm according to an embodiment of the present invention; fig. 3 is a partial schematic view of a rocker arm in an intake and exhaust rocker arm according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Referring to fig. 1-3, the present invention provides an intake and exhaust rocker arm, which includes a rocker arm base 10, a rotating shaft 20 and a rocker arm 30.

The rotating shaft 20 is connected between the rocker arm seats 10, the rocker arms 30 are rotatably connected with the rotating shaft 20, the rocker arms 30 can rotate relative to the rotating shaft 20, and the rocker arms 30 realize movement control of valve stems so as to realize air inlet and exhaust control of engine cylinders.

The rocker arm 30 comprises a rocker arm body, a rocker arm hole 31 is formed in the rocker arm body, the rocker arm hole 31 is in assembly connection with the rotating shaft 20, a transmission part 32 and a driving part 33 are respectively arranged on the rocker arm body on two sides of the central axis of the rocker arm hole 31, the transmission part 32 and the driving part 33 are integrally formed with the rocker arm body, and the transmission part 32 and the driving part 33 rotate on the left side and the right side of the rocker arm body relative to the rocker arm hole 31.

The driving part 33 is connected with a valve rod, the driving part 33 is provided with a connecting hole 331, the connecting hole 331 is used for connecting the valve rod, the axis of the connecting hole 331 is perpendicular to the axis of the rocker arm hole 31, and the valve rod is driven to move by the rotation of the driving part 33 so as to realize the air inlet and exhaust control of the cylinder.

The transmission part 32 comprises two rib plates 321 which are parallel and arranged at intervals, the plane where the rib plates 321 are located is perpendicular to the axis of the rocker arm hole 31, a cross beam is fixedly connected between the two rib plates 321, a rotary hole is formed in each rib plate 321, the axis of the rotary hole is parallel to the axis of the rocker arm hole 31, and the diameter of the rocker arm hole 31 is larger than that of the rotary hole.

The transmission part 32 is connected with a roller bearing 34, the roller bearing 34 is hinged with the transmission part 32 and can rotate relative to the transmission part 32, the roller bearing 34 is abutted with the cam, the cam drives the transmission part 32 to rotate around the rocker arm hole 31, the driving part 33 rotates, and the valve rod is driven by the driving part 33 to move so as to control the opening and closing of the valve.

The bottom of the two ribs 321 extends to form a clamping plate 35, the clamping plate 35 extends towards the lower part of the rocker arm 30, the plane of the clamping plate 32 is perpendicular to the axis of the rocker arm hole 31, the cam rotates in a space where the two clamping plates 35 are opposite, and the cam limited by the clamping plate 35 moves in the axial direction, specifically, the movement in the axial direction of the rocker arm hole 31.

Set up gyro wheel recess 351 between two splint 35 on the relative surface, set up gyro wheel 352 in the gyro wheel recess 351, gyro wheel 352 links to each other through minor axis 353 switching with gyro wheel recess 351, and the axis of rotation of gyro wheel 352 is the horizontal direction, and minor axis 353 also connects in the horizontal direction, and the gyro wheel 352 that sets up can guarantee that the cam reduces the friction with splint 35 surface when moving in vertical plane, reduces the friction that the cam received at the rotation in-process when guaranteeing to carry out axial spacing to the cam.

To sum up, the utility model provides an advance exhaust rocking arm, include: rocker arm seat, rotating shaft and rocker arm; the rotating shaft is connected between the rocker arm seats, the rocker arms are rotationally connected with the rotating shaft, and the rocker arms can rotate relative to the rotating shaft; the rocker arm comprises a rocker arm body, a rocker arm hole is formed in the rocker arm body, the rocker arm hole is in assembly connection with the rotating shaft, and a transmission part and a driving part are respectively arranged on the two sides of the rocker arm body, which are opposite to the central axis of the rocker arm hole; the driving part is connected with the valve rod; the transmission part comprises two ribbed plates which are arranged in parallel and at intervals, a cross beam is fixedly connected between the two ribbed plates, rotating holes are formed in the ribbed plates, the axes of the rotating holes are parallel to the axes of the rocker arm holes, the transmission part is connected with the roller bearings, clamping plates are arranged at the bottoms of the two ribbed plates in an extending mode and extend towards the lower portion of the rocker arm, roller recesses are formed in the opposite surfaces of the two clamping plates, rollers are arranged in the roller recesses and are connected with the roller recesses through short shaft switching, the rotating axes of the rollers are in the horizontal direction, the clamping plates can limit the axial movement of a cam abutted against the roller bearings connected with the transmission part, the stability of the roller bearings and the cam is further guaranteed, the cam is prevented from moving in the axial direction to influence the contact area of the roller bearings, the arranged rollers can facilitate the assembly of the cam between the clamping plates, and enable the cam to be assembled between the, the assembly efficiency of the cam and the rocker arm assembly can be improved on the premise that the clamping plate is arranged at the bottom of the rib plate.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An intake and exhaust rocker arm, comprising: rocker arm seat, rotating shaft and rocker arm; the rotating shaft is connected between the rocker arm seats, the rocker arms are rotatably connected with the rotating shaft, and the rocker arms can rotate relative to the rotating shaft; the rocker arm comprises a rocker arm body, a rocker arm hole is formed in the rocker arm body, the rocker arm hole is in assembly connection with the rotating shaft, and a transmission part and a driving part are respectively arranged on two sides of the rocker arm body, which are opposite to the central axis of the rocker arm hole; the driving part is connected with the valve rod; the transmission portion includes that two are parallel just the interval sets up the floor, two fixed connection crossbeam between the floor, set up the commentaries on classics hole on the floor, the axis in commentaries on classics hole with the axis in rocker arm hole parallels, transmission portion links to each other with roller bearing, two the bottom extension of floor sets up splint, splint orientation the below of rocker arm extends the setting, the plane of splint with the axis in rocker arm hole is mutually perpendicular, two relative between the splint sets up the gyro wheel concave seat on the surface, set up the gyro wheel in the gyro wheel concave seat, the gyro wheel with the gyro wheel concave seat passes through the minor axis switching and links to each other, the rotation axis of gyro wheel is the horizontal direction.

2. The intake and exhaust rocker arm of claim 1, wherein the drive portion is provided with a connecting hole for connecting a valve stem, the connecting hole having an axis perpendicular to an axis of the rocker arm hole.

3. The intake and exhaust rocker arm of claim 1, wherein the transmission portion, the drive portion and the rocker arm body are integrally formed.

4. The intake and exhaust rocker arm of claim 1 wherein the rocker arm aperture has a diametrical dimension greater than a diametrical dimension of the swivel bore.