WO2014047993A1 - 一种气缸 - Google Patents

一种气缸 Download PDF

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Publication number
WO2014047993A1
WO2014047993A1 PCT/CN2012/083349 CN2012083349W WO2014047993A1 WO 2014047993 A1 WO2014047993 A1 WO 2014047993A1 CN 2012083349 W CN2012083349 W CN 2012083349W WO 2014047993 A1 WO2014047993 A1 WO 2014047993A1
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WO
WIPO (PCT)
Prior art keywords
cylinder
piston
buffer rod
buffer
rod
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.)
Ceased
Application number
PCT/CN2012/083349
Other languages
English (en)
French (fr)
Inventor
杨卫兵
吴俊豪
林昆贤
汪永强
舒志优
齐明虎
陈增宏
郭振华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US13/698,282 priority Critical patent/US9103357B2/en
Publication of WO2014047993A1 publication Critical patent/WO2014047993A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/223—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position

Definitions

  • the present invention is in the field of pneumatic transmission and, more particularly, to a cylinder. ⁇ Background technique ⁇
  • the cylinder uses a high-pressure gas or a high-pressure liquid as a power source to reciprocate to realize a transmission function.
  • the cylinder generally includes a cylinder 1, a main cavity 2, a piston 3, and a piston rod 4.
  • the inlet and outlet ports 5 are also provided at both ends of the cylinder block 1.
  • the piston will hit the front and rear covers on the cylinder block.
  • the mechanical damage of the cylinder itself is caused by the piston impact stop process, which greatly increases the wear and deformation, resulting in shortened service life.
  • the impact may cause jitter.
  • the cylinder When the cylinder is used to transport articles, it may adversely affect vibration-sensitive items, and the application range is limited.
  • the technical problem to be solved by the present invention is to provide a non-impinging cylinder having a cushioning function.
  • the technical solution of the present invention is: a cylinder comprising: a cylinder block, a main cavity body, a piston and a piston rod, the cylinder body is provided with inlet and outlet ports at both ends, and the cylinder is further provided with an anti-collision structure and an anti-collision structure
  • the buffer rod is disposed on the piston, and the rainbow body is provided with a receiving hole corresponding to the buffer rod, and the receiving hole is provided with a gap for sealing the gap between the buffer rod and the receiving hole.
  • the cylinder further includes a buffer speed regulating structure, the buffer speed regulating structure includes a branch air flow channel connecting the main cavity body and the receiving hole, and a governor, wherein the governor is disposed in the branch air flow channel
  • the governor is an adjusting screw
  • the cylinder body is provided with an adjusting screw mounting hole, wherein one of the openings of the branch airflow passage is located in a central portion of the receiving hole, and the receiving hole is provided with a sealing buffer a second sealing jaw of the gap between the rod and the receiving hole, the second sealing jaw is located at an opening of the branch airflow passage in the receiving hole, and the buffering rod enters the receiving hole to cooperate with the second sealing jaw to block the main cavity Gas from the body
  • the flow channel is outflowed
  • the second sealing ring has a trapezoidal cross-sectional shape
  • the inlet and outlet ports are disposed at a tail end of the receiving hole
  • the axial center of the buffer rod coincides with the axis of the piston
  • the diameter of the buffer rod is greater
  • a cylinder comprising: a cylinder block, a main cavity body, a piston and a piston rod, the cylinder body is provided with inlet and outlet ports at both ends, and the cylinder is further provided with an anti-collision structure.
  • the anti-collision structure includes a buffer rod, the buffer rod is disposed on the piston, and the cylinder body is provided with a receiving hole corresponding to the buffer rod, and the receiving hole is provided with a buffering rod and a receiving hole for sealing The first seal ⁇ between the gaps.
  • the cylinder further includes a buffer speed regulation structure
  • the buffer speed regulation structure includes a branch air flow passage connecting the main cavity and the receiving hole and a governor, and the governor is disposed on the branch air flow passage.
  • the buffer speed regulating structure can adjust the deceleration acceleration of the piston at the end of the stroke, and is also a structure of the flexible buffer, which can further reduce the vibration of the cylinder, so the stability is higher, and can be used for transmitting the vibration sensitive object.
  • the governor is an adjusting screw
  • the cylinder is provided with an adjusting screw mounting hole.
  • the adjustment screw is assembled from the outside. It is not necessary to disassemble the cylinder. It can be adjusted outside the cylinder with a screwdriver-like tool. It is very convenient to use.
  • one of the openings of the branch air flow passage is located at a central portion of the receiving hole, and the receiving hole is provided with a second sealing jaw for sealing a gap between the buffer rod and the receiving hole.
  • the opening divides the receiving hole into two functional zones, one is a buffer speed regulating zone, and the other is an anti-collision zone.
  • the second sealing jaw is located at an opening of the branch airflow passage in the receiving hole, and when the buffer rod enters the receiving hole and cooperates with the second sealing jaw, the gas in the main cavity is blocked from flowing out of the branch airflow passage.
  • the second sealing jaw has a trapezoidal cross-sectional shape and is reliable in sealing with the buffer rod, resistant to abrasion and long in service life.
  • the inlet and outlet ports are disposed at the tail end of the receiving hole.
  • both ends of the cylinder are provided with an impact preventing structure.
  • both ends of the cylinder are provided with a buffer speed regulation structure.
  • the axial center of the buffer rod coincides with the axis of the piston, and the diameter of the buffer rod is larger than the diameter of the piston rod, so that the force of the buffer rod against the piston is consistent with the moving direction of the piston, so that the piston is subjected to the piston. Force balance, low mechanical wear.
  • the cylinder of the invention is provided with an anti-collision structure, an anti-collision structure package
  • the buffer rod is disposed on the piston, and the cylinder body is provided with a receiving hole corresponding to the buffer rod, and the receiving hole is provided with a gap for sealing the gap between the buffer rod and the receiving hole.
  • the first sealing ring when the piston moves in a certain direction, the buffer rod first enters the receiving hole, and since the first sealing ring is arranged between the buffer rod and the receiving hole, the gas in the receiving hole has nowhere to escape.
  • the buffer rod Being compressed, thereby absorbing the kinetic energy of the piston, stopping the piston, the buffer rod does not collide with the cylinder, and only a certain safe distance between the piston and the cylinder is required to avoid direct impact of the piston and the cylinder.
  • the impact structure has a flexible cushioning function and does not produce a hard impact. Therefore, the cylinder has small vibration and high stability, and can be used to transmit vibration-sensitive articles, which expands the application range; and reduces mechanical damage to the cylinder and reduces wear and tear. Deformation, thereby increasing the life of the cylinder.
  • FIG. 1 is a schematic structural view of a gas rainbow in the prior art
  • FIG. 2 is a schematic structural view of a first embodiment of the gas-red embodiment of the present invention.
  • FIG. 3 is a schematic structural view of an embodiment of the cylinder of the present invention in an anti-collision state;
  • FIG. 4 is a schematic structural view of the second embodiment of the gas-red embodiment of the present invention.
  • Fig. 5 is a structural schematic view showing the state of entering the buffer speed regulation state of the second embodiment of the cylinder of the present invention
  • Fig. 6 is a structural schematic view showing the state of entering the anti-collision state of the second embodiment of the cylinder of the present invention.
  • the invention discloses a cylinder.
  • the cylinder comprises a cylinder 1, a main cavity 2, a piston 3 and a piston rod 4, and the two ends of the rainbow body 1
  • Each of the inlet and outlet ports 5 is provided with an anti-collision structure 6.
  • the anti-collision structure 6 includes a buffer rod 61.
  • the buffer rod 61 is disposed on the piston 3, and the rainbow body 1 is provided with a slowing
  • the accommodating hole 62 corresponds to the accommodating hole 62, and the accommodating hole 62 is provided with a first sealing dam 63 for sealing the gap between the damper rod 61 and the accommodating hole 62.
  • both ends of the cylinder are provided with an impact preventing structure 6, and the first sealing jaw 63 is disposed at the innermost side of the receiving hole 62.
  • the axial center of the buffer rod 61 coincides with the axial center of the piston 3, and the diameter of the buffer rod 61 is larger than the diameter of the piston rod 4, so that the force of the buffer rod 61 against the piston 3 and the piston The movement direction of 3 is the same, so that the piston 3 is balanced by force and the mechanical wear is small.
  • the cylinder of the present invention is provided with an anti-collision structure 6.
  • the buffer rod 61 When the piston 3 moves in a certain direction, the buffer rod 61 first enters the receiving hole 62, and a first sealing port 63 is disposed between the buffer rod 61 and the receiving hole 62. Therefore, the gas in the accommodating hole 62 can be escaped only to be compressed, thereby absorbing the kinetic energy of the piston 3, stopping the piston 3, and the buffer rod 61 does not collide with the cylinder 1, only the piston 3 and the cylinder 1 are required.
  • the piston 3 can be prevented from directly colliding with the cylinder 1 by setting a certain safety distance.
  • the anti-collision structure 6 of the present invention has a flexible buffering function and does not generate a hard impact, so the cylinder has small vibration and high stability, and can be used for transmitting vibration-sensitive type.
  • the article expands the scope of application; it also reduces the mechanical damage to the cylinder, reduces wear and deformation, and thus increases the service life of the cylinder.
  • the cylinder further includes a buffer speed regulating structure 7, and the buffer speed regulating structure 7 includes a connecting main cavity.
  • the body 2 is connected to the branch air flow passage 71 and the governor 72 of the receiving hole 62, and the governor 72 is disposed on the branch air flow passage 71.
  • the buffer speed regulation structure 7 is disposed at both ends of the cylinder.
  • the inlet and outlet ports 5 are disposed at the tail end of the receiving hole 62, and one of the openings of the branch airflow passage 71 is located at a central portion of the receiving hole 62, and the opening 4b receiving hole 62 is divided into two functions.
  • the second sealing port 73 is provided in the receiving hole 62 for sealing the gap between the buffer rod 61 and the receiving hole 62, and the second sealing port is provided in the receiving hole 62. 73 is located at the opening of the branch air flow passage 71 in the receiving hole 62.
  • the cylinder enters the buffer speed regulation state, and the buffer rod 61 enters the buffer speed regulation area of the receiving hole 62. Since the first sealing jaw 63 can seal, the main cavity 2 is inside. Located in the piston The gas on the left side can only enter the accommodating hole 62 through the branch air flow passage 71, and escapes from the inlet and outlet port 5, and the gas escape speed is controlled by the governor 72, thereby realizing the adjustment of the moving speed of the piston 3, that is, The piston decelerates quickly, and the piston can be slowly decelerated.
  • the cylinder enters an anti-collision state, and the buffer rod 61 enters the collision avoidance area of the receiving hole 62. Since the second sealing jaw 73 can seal, the piston in the main chamber 2 is located on the left side of the piston. The side gas cannot escape and can only be compressed, thereby absorbing the kinetic energy of the piston, stopping the piston 3, the buffer rod 61 does not collide with the cylinder 1, and the piston 3 does not directly collide with the cylinder 1.
  • the buffer speed regulating structure 7 of the invention can adjust the deceleration acceleration of the piston 3 at the end of the stroke, and is also a structure of the flexible buffer, which can further reduce the vibration of the cylinder, so the stability is higher, and the vibration sensitive can be transmitted. Type of item.
  • the governor 72 is an adjusting screw
  • the cylinder body 1 is provided with an adjusting screw mounting hole 74.
  • the adjusting screw is assembled from the outside, and the cylinder is not required to be disassembled, and the screwdriver can be used in the cylinder.
  • the adjustment work is done externally and it is very convenient to use.
  • the second sealing jaw 73 has a trapezoidal cross-sectional shape, and the sealing between the second sealing jaw 73 and the buffer rod 61 is reliable, wear-resistant, and has a long service life.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Description

一种气虹
【技术领域】
本发明属于气压传动领域， 更具体的说， 涉及一种气缸。 【背景技术】
现有技术中， 气缸以高压气体或高压液体为动力源， 进行往复运动， 实现 传动功能， 如图 1所示， 气缸一般包括缸体 1、 主腔体 2、 活塞 3和活塞杆 4， 所述缸体 1两端还设有进出气口 5，气缸在工作过程中活塞会撞击缸体上的前后 盖， 活塞撞击停止过程对气缸本身的机械伤害较大， 大大增加磨耗及形变， 导 致寿命缩短； 另外撞击会产生抖动， 当气缸用于传送物品时， 可能会对振动敏 感型的物品产生不利影响， 应用范围受限。
【发明内容】
本发明所要解决的技术问题是提供一种具有緩冲功能的、 无撞击的气缸。 本发明的技术方案为： 一种气缸， 包括： 缸体、 主腔体、 活塞和活塞杆， 所述缸体两端均设有进出气口， 所述气缸还设有防撞击结构， 防撞击结构包括 緩冲杆， 所述緩冲杆设置在活塞上， 所述虹体上设有与緩冲杆相对应的容纳孔， 所述容纳孔处设有用于密封緩沖杆和容纳孔之间间隙的第一密封圏， 所述气缸 还包括緩冲调速结构， 所述緩冲调速结构包括连接主腔体与容纳孔的支气流通 道和调速器， 所述调速器设置在支气流通道上， 所述调速器为调节螺钉， 所述 缸体上设有调节螺釘安装孔， 所述支气流通道的其中一个开口位于容纳孔的中 部区域， 所述容纳孔内设有用于密封緩冲杆和容纳孔之间间隙的第二密封圏， 所述第二密封圏位于支气流通道在容纳孔内的开口处， 所述緩冲杆进入容纳孔 与第二密封圏配合时， 阻挡主腔体内的气体从支气流通道流出， 所述第二密封 圈截面形状为梯形， 所述进出气口设置在容纳孔的尾端， 所述緩冲杆的轴心与 活塞的轴心重合， 所述緩冲杆的直径大于活塞杆的直径。 本发明的另一种技术方案为： 一种气缸， 包括： 缸体、 主腔体、 活塞和活 塞杆， 所述缸体两端均设有进出气口， 所述气缸还设有防撞击结构， 防撞击结 构包括緩冲杆， 所述緩冲杆设置在活塞上， 所述缸体上设有与緩冲杆相对应的 容纳孔， 所述容纳孔处设有用于密封緩冲杆和容纳孔之间间隙的第一密封圏。
优选的， 所述气缸还包括缓冲调速结构， 所述缓沖调速结构包括连接主腔 体与容纳孔的支气流通道和调速器， 所述调速器设置在支气流通道上。 所述緩 冲调速结构可以调整活塞在行程尾端时的减速加速度， 也属于柔性緩冲的一种 结构， 能进一步减轻气缸振动， 所以稳定性更高， 可用于传送振动敏感型的物 口
优选的， 所述调速器为调节螺钉， 所述缸体上设有调节螺钉安装孔。 调节 螺钉从外部装配， 不必拆装气缸， 就可以用螺丝刀类的工具在气缸外部完成调 整工作， 使用非常方便。
优选的， 所述支气流通道的其中一个开口位于容纳孔的中部区域， 所述容 纳孔内设有用于密封緩冲杆和容纳孔之间间隙的第二密封圏。 所述开口把容纳 孔分成两个功能区， 一是緩冲调速区， 二是防撞区。
优选的， 所述第二密封圏位于支气流通道在容纳孔内的开口处， 所述緩冲 杆进入容纳孔与第二密封圏配合时， 阻挡主腔体内的气体从支气流通道流出。
优选的， 所述第二密封圏截面形状为梯形， 与緩冲杆之间的密封可靠， 耐 磨， 使用寿命长。
优选的， 所述进出气口设置在容纳孔的尾端。
优选的， 所述气缸的两端均设置有防撞击结构。
优选的， 所述气缸的两端均设置有緩冲调速结构。
优选的， 所述緩冲杆的轴心与活塞的轴心重合， 所述緩冲杆的直径大于活 塞杆的直径， 这样緩冲杆对活塞的作用力与活塞的运动方向一致， 使活塞受力 平衡， 机械磨损小。
本发明的有益效果为： 本发明所述气缸设置了防撞击结构， 防撞击结构包 括缓冲杆， 所述緩冲杆设置在活塞上， 所述缸体上设有与緩冲杆相对应的容纳 孔， 所述容纳孔处设有用于密封緩冲杆和容纳孔之间间隙的第一密封圈， 当活 塞向某一方向运动时， 緩冲杆先进入容纳孔， 由于緩冲杆和容纳孔之间设有第 一密封圈， 所以容纳孔内的气体无处可逃只能被压缩， 从而吸收了活塞的动能， 使活塞停止， 缓冲杆不会与缸体产生撞击， 只需要活塞与缸体设置一定的安全 距离就可避免活塞与缸体直接撞击， 本发明所述防撞击结构具有柔性緩冲功能， 不产生硬性撞击， 所以气缸振动小， 稳定性高， 可用于传送振动敏感型的物品， 扩大了应用范围； 而且减小了对气缸的机械伤害， 减小磨耗及形变， 从而提高 气缸的使用寿命。
【附图说明】
图 1是现有技术中气虹的结构示意图；
图 2是本发明所述气虹实施例一的结构示意图；
图 3是本发明所述气缸实施例一的进入防撞击状态的结构示意图； 图 4是本发明所述气虹实施例二的结构示意图；
图 5是本发明所述气缸实施例二的进入缓冲调速状态的结构示意图； 图 6是本发明所述气缸实施例二的进入防撞击状态的结构示意图。
【具体实施方式】
本发明公开一种气缸， 作为本发明气缸的实施例一， 如图 2和图 3所示， 气缸包括缸体 1、 主腔体 2、 活塞 3和活塞杆 4, 所述虹体 1两端均设有进出气 口 5， 所述气 还设有防撞击结构 6， 防撞击结构 6包括緩冲杆 61， 所述緩冲杆 61设置在活塞 3上， 所述虹体 1上设有与緩冲杆 61相对应的容纳孔 62, 所述 容纳孔 62处设有用于密封緩冲杆 61和容纳孔 62之间间隙的第一密封圏 63。在 本实施例中， 气缸的两端均设置有防撞击结构 6, 所述第一密封圏 63设置在容 纳孔 62的最内侧。 本实施例中， 所述緩冲杆 61的轴心与活塞 3的轴心重合， 所述緩冲杆 61 的直径大于活塞杆 4的直径， 这样緩冲杆 61对活塞 3的作用力与活塞 3的运动 方向一致， 使活塞 3受力平衡， 机械磨损小。
本发明所述气缸设置了防撞击结构 6, 当活塞 3向某一方向运动时，緩冲杆 61先进入容纳孔 62 , 由于缓冲杆 61和容纳孔 62之间设有第一密封圏 63 , 所以 容纳孔 62内的气体无处可逃只能被压缩， 从而吸收了活塞 3的动能， 使活塞 3 停止， 緩冲杆 61不会与缸体 1产生撞击， 只需要活塞 3与缸体 1设置一定的安 全距离就可避免活塞 3与缸体 1直接撞击， 本发明所述防撞击结构 6具有柔性 缓冲功能， 不产生硬性撞击， 所以气缸振动小， 稳定性高， 可用于传送振动敏 感型的物品， 扩大了应用范围； 而且减小了对气缸的机械伤害， 减小磨耗及形 变， 从而提高气缸的使用寿命。
作为本发明气缸的实施例二， 如图 4至图 6所示， 与实施例一不同之处在 于所述气缸还包括緩冲调速结构 7，所述緩冲调速结构 7包括连接主腔体 2与容 纳孔 62的支气流通道 71和调速器 72，所述调速器 72设置在支气流通道 71上。 本实施例中， 所述气缸的两端均设置有緩冲调速结构 7。
在本实施例中， 所述进出气口 5设置在容纳孔 62的尾端， 所述支气流通道 71的其中一个开口位于容纳孔 62的中部区域， 所述开口 4巴容纳孔 62分成两个 功能区， 一是緩冲调速区， 二是防撞区， 所述容纳孔 62内设有用于密封緩冲杆 61和容纳孔 62之间间隙的第二密封圏 73 , 所述第二密封圏 73位于支气流通道 71在容纳孔 62内的开口处， 所述緩冲杆 61进入容纳孔 62与第二密封圏 73配 合时， 阻挡主腔体 2内的气体从支气流通道 71流出。 所述
下面以活塞向左侧方向移动为例来说明气缸的工作原理， 如图 4所示， 所 述气缸的活塞 3向左方移动，主腔体 2内的位于活塞左侧的气体进入容纳孔 62, 并从进出气口 5逸出， 此时活塞 3可以实现快速移动。
如图 5所示， 所述气缸进入緩冲调速状态， 緩冲杆 61进入容纳孔 62的緩 冲调速区， 由于第一密封圏 63的能起到密封作用， 所以主腔体 2内的位于活塞 左侧气体只能通过支气流通道 71进入容纳孔 62, 并从进出气口 5逸出， 此时气 体逸出速度由调速器 72控制， 从而实现了对活塞 3移动速度的调整， 即可以使 活塞快速减速， 也可以使活塞慢慢减速。
如图 6所示， 所述气缸进入防撞击状态， 緩冲杆 61进入容纳孔 62的防撞 区， 由于第二密封圏 73的能起到密封作用， 所以主腔体 2内的位于活塞左侧气 体无法逸出， 只能被压缩， 从而吸收了活塞的动能， 使活塞 3停止， 緩冲杆 61 不会与缸体 1产生撞击， 活塞 3也不会与缸体 1产生直接撞击。
本发明所述緩冲调速结构 7可以调整活塞 3在行程尾端时的减速加速度， 也属于柔性緩冲的一种结构， 能进一步减轻气缸振动， 所以稳定性更高， 可用 于传送振动敏感型的物品。
在本实施例中， 所述调速器 72为调节螺釘， 所述缸体 1上设有调节螺钉安 装孔 74, 调节螺钉从外部装配， 不必拆装气缸， 就可以用螺丝刀类的工具在气 缸外部完成调整工作， 使用非常方便。
在本实施例中， 所述第二密封圏 73截面形状为梯形， 与緩冲杆 61之间的 密封可靠， 耐磨， 使用寿命长。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若千简单推演或替 换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种气缸， 包括： 缸体、 主腔体、 活塞和活塞杆， 所述缸体两端均设有 进出气口， 所述气缸还设有防撞击结构， 防撞击结构包括緩冲杆， 所述緩冲杆 设置在活塞上， 所述缸体上设有与缓冲杆相对应的容纳孔， 所述容纳孔处设有 用于密封緩冲杆和容纳孔之间间隙的第一密封圏， 所述气缸还包括緩冲调速结 构， 所述緩冲调速结构包括连接主腔体与容纳孔的支气流通道和调速器， 所述 调速器设置在支气流通道上， 所述调速器为调节螺钉， 所述缸体上设有调节螺 钉安装孔， 所述支气流通道的其中一个开口位于容纳孔的中部区域， 所述容纳 孔内设有用于密封緩冲杆和容纳孔之间间隙的第二密封圏， 所述第二密封圏位 于支气流通道在容纳孔内的开口处， 所述緩冲杆进入容纳孔与第二密封圏配合 时， 阻挡主腔体内的气体从支气流通道流出， 所述第二密封圏截面形状为梯形， 所述进出气口设置在容纳孔的尾端， 所述緩冲杆的轴心与活塞的轴心重合， 所 述緩冲杆的直径大于活塞杆的直径。
2、 一种气缸， 包括： 缸体、 主腔体、 活塞和活塞杆， 所述缸体两端均设有 进出气口， 所述气缸还设有防撞击结构， 防撞击结构包括緩冲杆， 所述緩冲杆 设置在活塞上， 所述缸体上设有与緩冲杆相对应的容纳孔， 所述容纳孔处设有 用于密封緩冲杆和容纳孔之间间隙的第一密封圏。
3、 如权利要求 2所述的气缸， 其中， 所述气缸还包括缓冲调速结构， 所述 緩冲调速结构包括连接主腔体与容纳孔的支气流通道和调速器， 所述调速器设 置在支气流通道上。
4、 如权利要求 3所述的气缸， 其中， 所述调速器为调节螺钉， 所述缸体上 设有调节螺钉安装孔。
5、 如权利要求 3所述的气缸， 其中， 所述支气流通道的其中一个开口位于 容纳孔的中部区域， 所述容纳孔内设有用于密封緩冲杆和容纳孔之间间隙的第 二密封圏。
6、 如权利要求 5所述的气缸， 其中， 所述第二密封圏位于支气流通道在容 纳孔内的开口处， 所述緩冲杆进入容纳孔与第二密封圏配合时， 阻挡主腔体内 的气体从支气流通道流出。
7、 如权利要求 5所述的气缸， 其中， 所述第二密封圈截面形状为梯形。
8、 如权利要求 3所述的气缸， 其中， 所述进出气口设置在容纳孔的尾端。
9、如权利要求 2所述的气缸，其中，所述气缸的两端均设置有防撞击结构。
10、 如权利要求 3所述的气缸， 其中， 所述气缸的两端均设置有緩冲调速 结构。
11、 如权利要求 2所述的气缸， 其中， 所述緩冲杆的轴心与活塞的轴心重 合， 所述緩冲杆的直径大于活塞杆的直径。
PCT/CN2012/083349 2012-09-29 2012-10-23 一种气缸 Ceased WO2014047993A1 (zh)

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CN109268341A (zh) * 2017-10-30 2019-01-25 中日龙(襄阳)机电技术开发有限公司 缓冲气缸
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