Rocker arm device
阅读说明:本技术 一种摇臂装置 (Rocker arm device ) 是由 肖珊珊 扈钧 谢超群 雷文斌 于 2019-10-29 设计创作,主要内容包括:本发明提供了一种摇臂装置,包括底座、摇臂,以及托盘,所述摇臂的一端通过第一安装轴铰接于所述底座上,另一端通过第二安装轴铰接在所述托盘上,还包括:往复运动组件,通过转动轴设置在所述摇臂靠近所述托盘的一侧,并随所述转动轴的转动做往复运动;气弹簧,包括依次连接的固定部、可伸缩部和顶针,所述固定部通过第三安装轴与所述底座铰接,所述可伸缩部固定在所述摇臂上,所述往复运动组件作用在所述顶针上,用于锁紧或解锁所述气弹簧。本发明的摇臂装置锁止和解锁操作,可参考往复运动组件的远程端和近程端进行精确控制,操作方便,并且气弹簧的支撑力稳定可靠。(The invention provides a rocker arm device, which comprises a base, a rocker arm and a tray, wherein one end of the rocker arm is hinged on the base through a first mounting shaft, and the other end of the rocker arm is hinged on the tray through a second mounting shaft, and the rocker arm device also comprises: the reciprocating motion assembly is arranged on one side of the rocker arm close to the tray through a rotating shaft and reciprocates along with the rotation of the rotating shaft; the air spring, including fixed part, scalable portion and the thimble that connects gradually, the fixed part pass through the third installation axle with the base is articulated, scalable portion is fixed on the rocking arm, the reciprocating motion subassembly is used for locking or unblock on the thimble the air spring. The rocker arm device can perform locking and unlocking operations, can perform accurate control by referring to the long-range end and the short-range end of the reciprocating motion assembly, is convenient to operate, and has stable and reliable supporting force of the gas spring.)
1. The utility model provides a rocker arm device, includes base, rocking arm to and the tray, the one end of rocking arm through first installation axle articulate in on the base, the other end passes through second installation axle articulate on the tray, its characterized in that still includes:
the reciprocating motion assembly is arranged on one side of the rocker arm close to the tray through a rotating shaft and reciprocates along with the rotation of the rotating shaft;
the gas spring comprises a fixing part, a telescopic part and a thimble which are sequentially connected, the fixing part is hinged with the base through a third mounting shaft, the telescopic part is fixed on the rocker arm, and the reciprocating motion assembly acts on the thimble and is used for locking or unlocking the gas spring;
wherein, first installation axle, second installation axle, axis of rotation and third installation axle parallel arrangement.
2. The rocker arm apparatus of claim 1, further comprising:
the U-shaped guide block is provided with mounting holes transversely penetrating through two side walls and a guide through hole longitudinally penetrating through the bottom, the rotating shaft penetrates through the mounting holes and can rotate relative to the U-shaped guide block, and the reciprocating motion assembly is opposite to the guide through hole;
the telescopic part penetrates through the guide through hole and abuts against the guide through hole through a shaft shoulder.
3. The rocker arm apparatus of claim 2, further comprising:
the two ends of the sleeve are fixed on the rocker arm, and a second through hole is formed in the sleeve wall, which is opposite to the guide through hole, in the middle of the sleeve; the U-shaped guide block is fixed on the sleeve through the mounting hole;
the rotating shaft is rotatably sleeved in the sleeve relative to the sleeve, and the reciprocating motion assembly is located in the sleeve and acts with the ejector pin of the gas spring through the second through hole.
4. The rocker arm apparatus of claim 2, wherein the reciprocating assembly is an eccentric wheel assembly or a slider-crank assembly.
5. The rocker arm apparatus of claim 4, wherein the eccentric wheel assembly comprises:
the eccentric wheel is fixed on the rotating shaft;
the bearing is sleeved on the eccentric wheel; and a thimble of the gas spring is abutted against the circumferential surface of the bearing.
6. The rocker arm apparatus of claim 4, wherein the slider-crank assembly comprises:
the connecting rod is hinged on the rotating shaft;
the sliding block is hinged at the tail end of the connecting rod; and a thimble of the gas spring is abutted against the sliding block.
7. The rocker arm apparatus of claim 6, wherein an end of the slider proximate the gas spring is provided with a blind bore in which a thimble of the gas spring abuts.
8. The rocker arm apparatus of any of claims 1-7, further comprising:
and the rotating wrench is arranged at one end of the rotating shaft, is positioned on the outer side of the rocker arm and is used for rotating the rotating shaft.
9. The rocker arm apparatus of claim 8, further comprising:
the spanner limiting piece is fixed on the outer side of the rocker arm and located between the rocker arm and the rotary spanner, the spanner limiting piece comprises a first abutting portion and a second abutting portion, and the rotation range of the rotary spanner is limited between the first abutting portion and the second abutting portion.
Technical Field
The invention belongs to the technical field of mechanical installation, and particularly relates to a rocker arm device.
Background
The rocker arm device, as shown in fig. 1, generally comprises a
When the inclination angle of the
When the inclination angle of the
Disclosure of Invention
The invention aims to provide a rocker arm device, and aims to solve the problems that an existing rocker arm device is inconvenient to operate and is prone to shaking after being locked.
In order to solve the above technical problem, the present invention is implemented as such, in which the rocker arm device includes a base, a rocker arm, and a tray, one end of the rocker arm is hinged to the base through a first mounting shaft, and the other end of the rocker arm is hinged to the tray through a second mounting shaft, and the rocker arm device further includes:
the reciprocating motion assembly is arranged on one side of the rocker arm close to the tray through a rotating shaft and reciprocates along with the rotation of the rotating shaft;
the gas spring comprises a fixing part, a telescopic part and a thimble which are sequentially connected, the fixing part is hinged with the base through a third mounting shaft, the telescopic part is fixed on the rocker arm, and the reciprocating motion assembly acts on the thimble and is used for locking or unlocking the gas spring;
wherein, first installation axle, second installation axle, axis of rotation and third installation axle parallel arrangement.
Further, the rocker arm device further comprises:
the U-shaped guide block is provided with mounting holes transversely penetrating through two side walls and a guide through hole longitudinally penetrating through the bottom, the rotating shaft penetrates through the mounting holes and can rotate relative to the U-shaped guide block, and the reciprocating motion assembly is opposite to the guide through hole;
the telescopic part penetrates through the guide through hole and abuts against the guide through hole through a shaft shoulder.
Further, the rocker arm device further comprises:
the two ends of the sleeve are fixed on the rocker arm, and a second through hole is formed in the sleeve wall, which is opposite to the guide through hole, in the middle of the sleeve; the U-shaped guide block is fixed on the sleeve through the mounting hole;
the rotating shaft is rotatably sleeved in the sleeve relative to the sleeve, and the reciprocating motion assembly is located in the sleeve and acts with the ejector pin of the gas spring through the second through hole.
Further, the reciprocating component is an eccentric wheel component or a crank block component.
Further, the eccentric wheel assembly includes:
the eccentric wheel is fixed on the rotating shaft;
the bearing is sleeved on the eccentric wheel; and a thimble of the gas spring is abutted against the circumferential surface of the bearing.
Further, the slider-crank assembly comprises:
the connecting rod is hinged on the rotating shaft;
the sliding block is hinged at the tail end of the connecting rod; and a thimble of the gas spring is abutted against the sliding block.
Furthermore, a blind hole is formed in one end, close to the gas spring, of the sliding block, and a thimble of the gas spring abuts against the blind hole.
Further, the rocker arm device further comprises:
and the rotating wrench is arranged at one end of the rotating shaft, is positioned on the outer side of the rocker arm and is used for rotating the rotating shaft.
Further, the rocker arm device further comprises:
the spanner limiting piece is fixed on the outer side of the rocker arm and located between the rocker arm and the rotary spanner, the spanner limiting piece comprises a first abutting portion and a second abutting portion, and the rotation range of the rotary spanner is limited between the first abutting portion and the second abutting portion.
Compared with the prior art, the invention has the beneficial effects that: the invention provides supporting force through the gas spring, and the locking and unlocking of the gas spring are controlled by the reciprocating motion assembly, so that during operation, the remote end and the near end of the reciprocating motion assembly can be referred to for accurate control, the operation is convenient, and the supporting force of the gas spring is stable and reliable.
Drawings
FIG. 1 is a schematic diagram of a prior art rocker arm apparatus.
Fig. 2 is a perspective view of one embodiment of a rocker arm apparatus of the present invention.
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
FIG. 5 is a schematic diagram of the operation of the rocker arm apparatus of the present invention.
Fig. 6 is a perspective view of a U-shaped guide block in one embodiment of a rocker arm apparatus of the present invention.
Figure 7 is a longitudinal partial cross-sectional view of the rocker arm assembly of the eccentric version of the present invention along the axis of the rotating shaft.
Fig. 8 is an exploded view of a portion of the structure of fig. 7 including an eccentric wheel structure.
Fig. 9 is an exploded view of a portion of the structure of the present invention including a slider-crank structure.
Fig. 10 is a longitudinal partial cross-sectional view of the rocker arm arrangement of the slider-crank solution of the present invention along the axis of the rotary shaft.
FIG. 11 is an assembly view of one embodiment of the rotational wrench and wrench tabs of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a rocker arm device, which is shown in a perspective view and an explosion view in fig. 2 and fig. 3 and fig. 4 is a partial view and comprises a
The working principle of the rocker arm device of the invention is as shown in figure 5: when the reciprocating assembly 4 is in a close end state (the close end contacts the thimble 53), the
Based on the above embodiments, the present invention provides a preferable fixing manner of the
In the above embodiment, when the rotating shaft L0 is rotated, not only the pressure generated by the
In the above embodiments, the reciprocating assembly 4 may be provided with an eccentric 41A on the rotating shaft L0, but when the eccentric is used alone, the eccentric not only generates pressure on the
The present invention also provides another embodiment in which the
Further, in the above embodiment, a
In the foregoing embodiments, further, the turning
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
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