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 徐佳 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,摇臂的一端通过第一安装轴铰接于底座上,另一端通过第二安装轴铰接在托盘上,还包括:套筒,两端固定在摇臂上靠近托盘的一侧,中间朝向底座的一侧的侧壁上开设有第二通孔;转动轴,穿过套筒,相对套筒可转动地设置在摇臂上;往复运动组件,设置在转动轴上并位于套筒中,随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,固定部通过第三安装轴与底座铰接,可伸缩部固定在摇臂上,往复运动组件作用在顶针上。本发明的气弹簧固定在摇臂与底座间,往复运动组件只与顶针作用,其他外力均作用在套筒上,只需要克服气弹簧的顶针压力即可,降低了转动轴的转动操作难度。(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 two ends of the sleeve are fixed on one side of the rocker arm close to the tray, and a second through hole is formed in the side wall of one side of the middle of the sleeve facing the base; the rotating shaft penetrates through the sleeve and is rotatably arranged on the rocker arm relative to the sleeve; the reciprocating motion assembly is arranged on the rotating shaft, is positioned in the sleeve 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, wherein 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. The gas spring is fixed between the rocker arm and the base, the reciprocating motion assembly only acts on the ejector pin, other external forces act on the sleeve, only the pressure of the ejector pin of the gas spring needs to be overcome, and the rotating operation difficulty of the rotating shaft is reduced.)
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 two ends of the sleeve are fixed on one side, close to the tray, of the rocker arm, and a second through hole is formed in the side wall, facing the base, of the middle of the sleeve;
the rotating shaft penetrates through the sleeve and is rotatably arranged on the rocker arm relative to the sleeve;
the reciprocating assembly is arranged on the rotating shaft, is positioned in the sleeve 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 the two side walls and a guide through hole longitudinally penetrating through the bottom;
the sleeve penetrates through the mounting hole and is fixed relative to the U-shaped guide block; the second through hole 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 1, wherein the reciprocating component is a cam, an eccentric wheel component, or a slider-crank component.
4. The rocker arm apparatus of claim 3, 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.
5. The rocker arm apparatus of claim 3, 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.
6. The rocker arm apparatus of claim 5, 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.
7. The rocker arm apparatus of any of claims 1-6, 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.
8. The rocker arm apparatus of claim 7, 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 problem that the operation is laborious when the inclination angle of a rocker arm is adjusted by the conventional rocker arm device.
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 two ends of the sleeve are fixed on one side, close to the tray, of the rocker arm, and a second through hole is formed in the side wall, facing the base, of the middle of the sleeve;
the rotating shaft penetrates through the sleeve and is rotatably arranged on the rocker arm relative to the sleeve;
the reciprocating assembly is arranged on the rotating shaft, is positioned in the sleeve 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 the two side walls and a guide through hole longitudinally penetrating through the bottom;
the sleeve penetrates through the mounting hole and is fixed relative to the U-shaped guide block; the second through hole 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 reciprocating component is a cam, an eccentric wheel component or a slider-crank 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: in the rocker arm device, the gas spring is fixed between the rocker arm and the base, the reciprocating motion assembly only acts on the ejector pin, other external forces act on the sleeve, and only the pressure of the ejector pin of the gas spring needs to be overcome, so that the rotating operation difficulty of the rotating shaft is reduced. In addition, the rocker arm device can perform locking and unlocking operations, can perform accurate control by referring to the remote 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.
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.
Figure 6 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. 7 is a perspective view of a U-shaped guide block in one embodiment of a rocker arm apparatus of the present invention.
Fig. 8 is an exploded view of a portion of the structure of fig. 6 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 exploded view in fig. 3 and a partial view in fig. 4, and comprises a
The working principle of the rocker arm device of the invention is as shown in figure 5: when the
Based on the above embodiments, the present invention provides a preferable fixing manner of the
In the above embodiments, 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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