WO2018086019A1 - 电控压缩式气弹簧 - Google Patents

电控压缩式气弹簧 Download PDF

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Publication number
WO2018086019A1
WO2018086019A1 PCT/CN2016/105268 CN2016105268W WO2018086019A1 WO 2018086019 A1 WO2018086019 A1 WO 2018086019A1 CN 2016105268 W CN2016105268 W CN 2016105268W WO 2018086019 A1 WO2018086019 A1 WO 2018086019A1
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Prior art keywords
gas spring
cylinder
rod
hollow piston
piston rod
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PCT/CN2016/105268
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English (en)
French (fr)
Inventor
应端忠
宁成
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宁波一力减震器有限公司
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Priority to PCT/CN2016/105268 priority Critical patent/WO2018086019A1/zh
Publication of WO2018086019A1 publication Critical patent/WO2018086019A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum

Definitions

  • the invention relates to a gas spring structure, in particular to an electronically controlled compression gas spring.
  • the gas spring is an industrial accessory that can support, cushion, brake, height adjust and adjust the angle. It consists of the following parts: pressure cylinder, piston rod, piston, seal guide sleeve, packing (inert gas or oil and gas mixture), in-cylinder control elements and out-of-cylinder control elements (referred to as controllable gas springs) and joints.
  • the principle is to fill the closed pressure cylinder with inert gas or oil and gas mixture, so that the pressure in the chamber is several times or several times higher than the atmospheric pressure, and the pressure difference generated by the cross-sectional area of the piston rod is smaller than the cross-sectional area of the piston. To achieve the movement of the piston rod.
  • gas springs Due to fundamental differences in principle, gas springs have significant advantages over ordinary springs: they are relatively slow, have little change in dynamic force (generally within 1:1.2), and are easy to control.
  • the piston rod of the original ordinary gas spring is a solid round bar.
  • the rear block is a simple and commonly used rear block. The design needs to adopt a damping hole, which cannot meet the requirements of automation and intelligent equipment. It relies entirely on the dynamic force of the gas spring itself to operate, and the power is insufficient.
  • the invention provides an electric compressed gas spring with reasonable design, compact structure and convenient use, can be combined with a universal electric vehicle tailgate and effectively providing auxiliary power; and solves the technology that the existing gas spring can not provide auxiliary power and lack of power. problem.
  • the electronically controlled compression type gas spring comprises a gas spring device and a linear telescopic drive device connected to the gas spring device, wherein the gas spring device comprises a cylinder tube, and a hollow piston rod is arranged in the cylinder tube, and is connected at one end of the hollow piston rod a sealing guide tube is connected at the other end of the hollow piston rod with a linear telescopic driving device; the linear telescopic driving device comprises a guiding rod located in the hollow piston rod, and one end of the guiding rod is located in the sealing guiding tube and moves in the sealing guiding tube The other end of the guide rod is connected with a motor drive structure.
  • the cylinder is also filled with an inert gas, and the inert gas is still the power source of the gas spring.
  • the linear spring is connected with the gas spring device to provide auxiliary power to the gas spring, and the gas spring device is connected with the tailgate of the automobile. Therefore, it is more labor-saving when driving the car door.
  • the motor driving mechanism drives the guiding rod to move in the sealing guiding tube, and the guiding rod is located in the hollow piston rod. The movement of the guiding rod provides auxiliary power to the hollow piston rod, so that when the gas spring is connected with the tailgate rod, the utility model can realize the quick and labor-saving pulling. Open or close the door.
  • a hollow piston rod is connected to one end of the cylinder barrel, and the other end of the cylinder barrel is closed by a rear plug, and the rear plug is connected to the sealing guide tube through an end surface of the cylinder barrel.
  • the rear plug is integrally formed with the sealing guide tube, and a through hole is formed in the end surface of the cylinder tube, and the rear plug is disposed in the cylinder tube through the through hole, and is fixed on the bottom surface of the sealing guide tube and the end surface of the cylinder tube.
  • the rear plug is integrally formed with the sealing guide tube, and has a simple structure. At the same time, the sealed conduit is welded to the end surface of the cylinder by welding, and the sealing property is good.
  • the sealing guide tube is also fixed to the cylinder tube while achieving sealing with a plug.
  • the guiding rod is a multi-head screw
  • a nut is connected to one end of the multi-head screw
  • the nut is located in the hollow piston rod and the nut is connected with the sealing guide tube
  • the other end of the multi-head screw is connected with the output shaft of the motor driving structure.
  • a guiding ring is arranged between the guiding rod and the sealing guide tube, and the guiding ring is fixed on the guiding rod.
  • the guiding ring guides and supports the multi-head screw, so that the multi-head screw moves more stably in the sealing guide tube.
  • the sealing guide tube is sealed from the inner cavity of the cylinder by a piston device, the piston device comprising a piston disposed on the hollow piston rod, a hole seal disposed between the inner side wall of the piston and the outer side wall of the sealing guide tube a second shaft sealing ring disposed between the inner side wall of the piston and the outer side wall of the sealing guide tube, a first shaft sealing ring disposed between the outer side wall of the piston and the inner side wall of the cylinder tube, and disposed on the outer side wall of the piston And an annular groove for placing the first shaft sealing ring, an air passing hole provided on the piston, and a matching gap disposed between the outer side wall of the piston and the inner side wall of the cylinder.
  • the piston does not need to design a damping hole, only a common through hole, because the two-way movement of the piston is done by the motor driving part, and the speed of opening and closing of the piston is determined by the number of heads and nuts.
  • one end of the hollow piston rod is connected to the inner wall of the cylinder tube through a guiding seal assembly, and the other end of the hollow piston rod is engaged with the speed reducing device of the motor drive system.
  • the inert gas in the cylinder is sealed by the guiding seal assembly.
  • the main power source of the hollow piston rod is still from the inert gas in the cylinder, but since the other end of the hollow piston rod is simultaneously connected to the motor drive system, the motor drive system gives The movement of the hollow piston rod provides an auxiliary power that makes the hollow piston rod movement less labor intensive.
  • the motor driving mechanism comprises a speed reducing device, one end of the speed reducing device is connected with the guiding rod, the other end of the speed reducing device is connected with a motor, the wiring port of the motor is connected with the power source, and the right end of the hollow piston rod is coupled to the speed reducing device.
  • the motor is driven by the multi-head screw to provide auxiliary power.
  • an oriented guide casing coaxial with the hollow piston rod is engaged at the right end of the cylinder; one end of the orientation guide casing is located on the cylinder, and the other end of the orientation guide casing is located on the motor drive system.
  • the sealing guide tube, the cylinder, the guide rod and the hollow piston rod are arranged coaxially. Good coaxiality, reduce friction and improve the service life of electric gas springs.
  • the invention reciprocates in the cylinder through the motor, the reduction gear, the screw nut and the driven hollow piston rod, and plays the guiding and guiding role through the guiding ring, reduces the outer shape volume through the sealing guiding tube, has reasonable structure and scientific design, and is used through the first shaft.
  • the sealing ring, the matching clearance, and the through-holes realize the ventilation, the smooth and uniform speed, the structure optimization, and the processability is good.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a schematic view showing the structure of a piston device of the present invention.
  • Figure 3 is a schematic view showing the structure of the present invention.
  • the present invention includes a gas spring device and a linear telescoping drive coupled to the gas spring device.
  • the gas spring device comprises a cylinder 2, a hollow piston rod 1 installed in the cylinder 2, an inert gas 5 disposed in the cylinder 2, and a guide installed between the right end of the cylinder 2 and the outer side wall of the hollow piston rod 1.
  • a seal assembly 3 a piston device 4 disposed on the hollow piston rod 1, a rod chamber 16 disposed on the right side of the piston device 4, and a rodless chamber 17 disposed on the left side of the piston device 4; the piston device 4 is located at the guide seal assembly 3 On the left side.
  • the linear telescopic drive device includes a seal guide tube 15 disposed in the cylinder tube 2, a screw nut 8 and a guide ring 9 disposed at a left end of the screw nut 8; the nut of the screw nut 8 is fixedly disposed on the seal guide tube 15, The screw of the screw nut 8 is synchronously extended with the hollow piston rod 1; the guide ring 9 is disposed in the sealing guide tube 15, and the sealing guide tube 15 is sealed with the inner cavity of the cylinder barrel 2, the screw nut 8, the sealing guide tube 15 and the cylinder tube 2 The inner hole and the hollow piston rod 1 are coaxially arranged.
  • seal guide tube 15 is sealed by the piston device 4 and the inner cavity of the cylinder barrel 2.
  • the right end of the screw of the screw nut 8 is connected to the deceleration device 10, and the deceleration device 10 is connected to the motor 12.
  • the wiring port 11 of the motor 12 is connected to the power source, and the right end of the hollow piston rod 1 is coupled to the deceleration device 10.
  • the reduction gear unit 10 is a spur gear reducer, and the right end of the screw of the screw nut 8 is connected to the output hole of the reduction gear unit 10 via the detachment prevention spring 14.
  • a rear plug 6 is provided at the left end of the cylinder barrel 2, and the rear plug 6 is located at the left end of the seal guide tube 15 and is integral.
  • the piston device 4 includes a piston 21 disposed on the hollow piston rod 1, a hole sealing ring 7 disposed between the inner side wall of the piston 21 and the outer side wall of the sealing guide tube 15, and/or disposed on the inner side wall of the piston 21 and the sealing guide a second shaft sealing ring between the outer side walls of the tube 15, a first shaft sealing ring 18 disposed between the outer side wall of the piston 21 and the inner side wall of the cylinder tube 2, and disposed on the outer side wall of the piston 21 for placing the first
  • An annular groove of the shaft seal ring 18 is disposed on the piston 21 a through hole 20 and a matching gap 19 disposed between the outer side wall of the piston 21 and the inner side wall of the cylinder 2;
  • the rod chamber 16 and the rodless chamber 17 respectively correspond to the bottom of the annular groove through the through hole 20.
  • an orientation guide casing 13 coaxial with the hollow piston rod 1 is engaged at the right end of the cylinder barrel 2; the reduction gear 10 and the motor 12 are slidably disposed in the orientation guide casing 13 by the screw nut 8.
  • the number of the screws of the screw nut 8 is at least two, and a seal collar 22 for fixing the seal ring 7 for the hole is provided at the left end of the piston 21.
  • the invention is particularly suitable for electric vehicle tailgates.
  • the hollow piston rod 1 adopts a hollow fine-drawn steel tube, and the rear plug 6 and the sealing guide tube 15 are welded at the inner end of the rear plug 6 to form a sealed guide tube, thereby prolonging the life of the electric gas spring and reducing wear and tear.
  • the small outer volume is used to seal the mechanical assembly and movement space of the electronically controlled gas spring under the action of the sealing ring and/or the sealing ring 7 on the second shaft of the piston device 4. Electric gas spring life, friction and other properties.
  • the linear telescopic drive device can adopt a common linear repetitive motion mechanism such as an existing electric push rod, and the number of the screw of the screw nut 8 is determined according to actual needs, thereby improving the service life.
  • the piston device 4 does not need to design a damping hole, and the common air hole 20 can be shared, because its two-way movement is performed by the electric part, and the speed of its opening and closing is determined by the number of the screw nut 8, opening and closing. At a constant speed.
  • the hollow piston rod 1, the rear plug 6, and the sealing guide tube 15 are the core of the present invention; the hole sealing ring 7, the second shaft sealing ring and the guiding ring 9 are the key to ensure the performance of the electric gas spring.
  • the invention drives the hollow piston rod 1 to reciprocate in the cylinder tube 2 through the motor 12, the reduction gear device 10 and the screw nut 8, and plays a supporting guiding role through the guiding ring 9, reduces the outer shape volume through the sealing guiding tube 15, has a reasonable structure, and is scientific in design.
  • the through air hole 20 Through the first shaft with the sealing ring 18, the matching gap 19, the through air hole 20 to achieve air exchange, smooth and uniform speed, structural optimization, and good processability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Transmission Devices (AREA)

Abstract

一种电控压缩式气弹簧，包括气弹簧装置以及与气弹簧装置连接的直线伸缩驱动装置，所述的气弹簧装置包括缸筒（2），在缸筒内设有空心活塞杆（1），在空心活塞杆（1）的一端连接有密封导向管（15），在空心活塞杆的另一端连接有直线伸缩驱动装置；所述的直线伸缩驱动装置包括位于空心活塞杆内的导向杆，导向杆的一端位于密封导向管内并在密封导向管内运动，导向杆的另一端连接有电机驱动结构。该气弹簧设计合理、结构紧凑且使用方便，能和通用电动汽车尾门杆结合，解决了现有的气弹簧不能提供辅助动力，动力不足的技术问题。

Description

电控压缩式气弹簧 技术领域
本发明涉及一种气弹簧结构，尤其涉及电控压缩式气弹簧。
背景技术
气弹簧是一种可以起支撑、缓冲、制动、高度调节及角度调节等功能的工业配件。它由以下几部分构成：压力缸、活塞杆、活塞、密封导向套、填充物(惰性气体或者油气混合物)，缸内控制元件与缸外控制元件(指可控气弹簧)和接头等。原理是在密闭的压力缸内充入惰性气体或者油气混合物，使腔体内的压力高于大气压的几倍或者几十倍，利用活塞杆的横截面积小于活塞的横截面积从而产生的压力差来实现活塞杆的运动。由于原理上的根本不同，气弹簧比普通弹簧有着很显著的优点：速度相对缓慢、动态力变化不大(一般在1：1.2以内)、容易控制。原普通气弹簧的活塞杆是实心圆刚杆，后堵是简单常用后堵，设计上需要采用阻尼孔，不能满足自动化与智能的设备需求。完全依靠气弹簧本身的动态力进行动作，动力不足。
发明内容
本发明提供一种设计合理、结构紧凑且使用方便，能和通用电动汽车尾门杆结合，有效提供辅助动力的电动压缩气弹簧；解决了现有的气弹簧不能提供辅助动力，动力不足的技术问题。
为解决上述问题，本发明所采取的技术方案是：
电控压缩式气弹簧，包括气弹簧装置以及与气弹簧装置连接的直线伸缩驱动装置，所述的气弹簧装置包括缸筒，在缸筒内设有空心活塞杆，在空心活塞杆的一端连接有密封导向管，在空心活塞杆的另一端连接有直线伸缩驱动装置；所述的直线伸缩驱动装置包括位于空心活塞杆内的导向杆，导向杆的一端位于密封导向管内并在密封导向管内运动，导向杆的另一端连接有电机驱动结构。在缸筒内同样填充有惰性气体，惰性气体也仍旧是气弹簧的动力源，通过与气弹簧装置相连的直线伸缩驱动装置给气弹簧提供辅助动力，将气弹簧装置与汽车的尾门杆相连，从而使得在开汽车门时，能更为省力。电机驱动机构带动导向杆在密封导向管内运动，导向杆位于空心活塞杆内，导向杆的运动给空心活塞杆提供了辅助动力，从而当气弹簧与尾门杆相连时，能实现快速省力的拉开或者关闭车门。
作为优选，缸筒的一端开口连接有空心活塞杆，缸筒的另一端通过后堵头封闭，后堵头穿过缸筒的端面与密封导向管相连。作为更优选，所述的后堵头与密封导向管一体成型，在缸筒的端面开设一通孔，后堵头穿过通孔位于缸筒为，在密封导向管底面与缸筒端面固定连 接。后堵头与密封导向管一体成型，结构简单，同时通过焊接将密封导线管焊接在缸筒的端面上，密封性良好。在实现了用堵头密封的同时，也将密封导向管固定在缸筒上。
作为优选，所述的导向杆为多头螺杆，在多头螺杆的一端连接有螺母，螺母位于空心活塞杆内并且螺母与密封导向管相连，多头螺杆的另一端与电机驱动结构的输出轴相连。通过控制多头螺杆的头数和直径，能达到控制开启和关闭的速度。
作为优选，所述的导向杆与密封导向管之间设有导向环，导向环固定在导向杆上。导向环对多头螺杆起导向和支撑作用，让多头螺杆在密封导向管内运动的更稳定。
作为优选，密封导向管通过活塞装置与缸筒的内腔密封设置，所述的活塞装置包括设置在空心活塞杆上的活塞、设置在活塞内侧壁与密封导向管外侧壁之间的孔用密封圈和/或设置在活塞内侧壁与密封导向管外侧壁之间的第二轴用密封圈、设置在活塞外侧壁与缸筒内侧壁之间的第一轴用密封圈、设置在活塞外侧壁上且用于放置第一轴用密封圈的环形沟槽、设置在活塞上的过气孔以及设置在活塞外侧壁与缸筒内侧壁之间的配合间隙。活塞无需设计阻尼孔，只有公用的过气孔，因为活塞的双向运动是靠电机驱动部分来完成的，活塞的开启和关闭的速度决定于多头螺杆和螺母的头数。
作为优选，所述的空心活塞杆的一端通过导向密封组件与缸筒内壁相连，空心活塞杆的另一端卡接在电机驱动系统的减速装置上。通过导向密封组件将缸筒内的惰性气体密封，空心活塞杆的主要动力源还是来自与缸筒内的惰性气体，但是由于空心活塞杆的另一端同时连接在电机驱动系统上，电机驱动系统给空心活塞杆的运动提供了辅助的动力，使得空心活塞杆运动更为省力。
作为优选，所述的电机驱动机构包括减速装置，减速装置的一端与导向杆相连，减速装置的另一端连接有电机，电机的接线口与电源连接，空心活塞杆的右端卡接在减速装置上。通过电机带动多头螺杆运动，提供辅助动力。
作为优选，在缸筒右端卡接有与空心活塞杆同轴的定向导向外套；定向导向外套的一端位于缸筒上，定向导向外套的另一端位于电机驱动系统上。
作为优选，密封导向管、缸筒、导向杆和空心活塞杆同轴布置。同轴度好，降低摩擦力，提高电动气弹簧的使用寿命。
采用上述技术方案所产生的有益效果在于：
本发明通过电机、减速装置、螺杆螺母、带动空心活塞杆在缸筒内往复运动，通过导向环起到支撑导向作用，通过密封导向管减少外形体积，结构合理，设计科学，通过第一轴用密封圈、配合间隙、过气孔实现换气，平稳匀速，结构优化，工艺性好。
附图说明
图1是本发明的结构示意图。
图2是本发明活塞装置的结构示意图。
图3是本发明变形的结构示意图。
其中：1、空心活塞杆；2、缸筒；3、导向密封组件；4、活塞装置；5、惰性气体；6、后堵头；7、孔用密封圈；8、螺杆螺母；9、导向环；10、减速装置；11、接线口；12、电机；13、定向导向外套；14、防脱卡簧；15、密封导向管；16、有杆腔；17、无杆腔；18、第一轴用密封圈；19、配合间隙；20、过气孔；21、活塞；22、密封挡圈。
具体实施方式
如图1-3所示，本发明包括气弹簧装置以及与气弹簧装置连接的直线伸缩驱动装置。
进一步，气弹簧装置包括缸筒2、安装在缸筒2内的空心活塞杆1、设置在缸筒2内的惰性气体5、安装在缸筒2右端与空心活塞杆1外侧壁之间的导向密封组件3、设置在空心活塞杆1上的活塞装置4、设置在活塞装置4右侧的有杆腔16以及设置在活塞装置4左侧的无杆腔17；活塞装置4位于导向密封组件3的左侧。
进一步，直线伸缩驱动装置包括设置在缸筒2内的密封导向管15、螺杆螺母8以及设置在螺杆螺母8的螺杆左端的导向环9；螺杆螺母8的螺母固定设置在密封导向管15上，螺杆螺母8的螺杆与空心活塞杆1同步伸缩设置；导向环9设置在密封导向管15内，密封导向管15与缸筒2的内腔密封设置，螺杆螺母8、密封导向管15与缸筒2内孔以及空心活塞杆1同轴设置。
进一步，密封导向管15通过活塞装置4与缸筒2的内腔密封设置。
进一步，螺杆螺母8的螺杆右端连接有减速装置10，减速装置10连接有电机12，电机12的接线口11与电源连接，空心活塞杆1的右端卡接在减速装置10上。
进一步，减速装置10为直齿减速机，螺杆螺母8的螺杆右端通过防脱卡簧14与减速装置10的输出孔连接。
进一步，在缸筒2的左端密封设置有后堵头6，后堵头6位于密封导向管15的左端且为一体的。
进一步，活塞装置4包括设置在空心活塞杆1上的活塞21、设置在活塞21内侧壁与密封导向管15外侧壁之间的孔用密封圈7和/或设置在活塞21内侧壁与密封导向管15外侧壁之间的第二轴用密封圈、设置在活塞21外侧壁与缸筒2内侧壁之间的第一轴用密封圈18、设置在活塞21外侧壁上且用于放置第一轴用密封圈18的环形沟槽、设置在活塞21上 的过气孔20以及设置在活塞21外侧壁与缸筒2内侧壁之间的配合间隙19；
有杆腔16以及无杆腔17分别通过过气孔20与环形沟槽的底部相对应。
进一步，如图3所示，在缸筒2右端卡接有与空心活塞杆1同轴的定向导向外套13；减速装置10与电机12通过螺杆螺母8滑动设置在定向导向外套13内。
进一步，螺杆螺母8的螺杆的头数至少两个，在活塞21左端设置有用于固定孔用密封圈7的密封挡圈22。本发明特别适合于电动汽车尾门杆。
空心活塞杆1采用空心精拉钢管，后堵头6与密封导向管15是在后堵头6内端焊一段精拉钢管做密封导向管而成，从而延长电动气弹簧寿命，减少磨损，减小外形体积，在活塞装置4的第二轴用密封圈和/或孔用密封圈7作用下，隔离出电控气弹簧机械组装、运动空间。电动气弹簧寿命、摩擦力等各项性能。
直线伸缩驱动装置可以采用现有电动推杆等常见直线反复运动机构，螺杆螺母8的螺杆的头数根据实际需要制定，提高使用寿命。活塞装置4无需设计阻尼孔，可以共用的过气孔20，因它的双向运动是靠电动部分部件来完成的，它的开启和关闭的速度都决定于螺杆螺母8的头数，开启和关闭都呈匀速状态。
空心活塞杆1、、后堵头6、密封导向管15是本发明的核心；孔用密封圈7、第二轴用密封圈、导向环9是保证电动气弹簧各项性能关键。
本发明通过电机12、减速装置10、螺杆螺母8带动空心活塞杆1在缸筒2内往复运动，通过导向环9起到支撑导向作用，通过密封导向管15减少外形体积，结构合理，设计科学，通过第一轴用密封圈18、配合间隙19、过气孔20实现换气，平稳匀速，结构优化，工艺性好。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；作为本领域技术人员对本发明的多个技术方案进行组合是显而易见的。而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。

Claims (10)

  1. 电控压缩式气弹簧，其特征在于：包括气弹簧装置以及与气弹簧装置连接的直线伸缩驱动装置，所述的气弹簧装置包括缸筒，在缸筒内设有空心活塞杆，在空心活塞杆的一端连接有密封导向管，在空心活塞杆的另一端连接有直线伸缩驱动装置；所述的直线伸缩驱动装置包括位于空心活塞杆内的导向杆，导向杆的一端位于密封导向管内并在密封导向管内运动，导向杆的另一端连接有电机驱动结构。
  2. 根据权利要求1所述的电控压缩式气弹簧，其特征在于：缸筒的一端开口连接有空心活塞杆，缸筒的另一端通过后堵头封闭，后堵头穿过缸筒的端面与密封导向管相连。
  3. 根据权利要求2所述的电控压缩式气弹簧，其特征在于：所述的后堵头与密封导向管一体成型，在缸筒的端面开设一通孔，后堵头穿过通孔位于缸筒为，在密封导向管底面与缸筒端面固定连接。
  4. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：所述的导向杆为多头螺杆，在多头螺杆的一端连接有螺母，螺母位于空心活塞杆内并且螺母与密封导向管相连，多头螺杆的另一端与电机驱动结构的输出轴相连。
  5. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：所述的导向杆与密封导向管之间设有导向环，导向环固定在导向杆上。
  6. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：密封导向管通过活塞装置与缸筒的内腔密封设置，所述的活塞装置包括设置在空心活塞杆上的活塞、设置在活塞内侧壁与密封导向管外侧壁之间的孔用密封圈和/或设置在活塞内侧壁与密封导向管外侧壁之间的第二轴用密封圈、设置在活塞外侧壁与缸筒内侧壁之间的第一轴用密封圈、设置在活塞外侧壁上且用于放置第一轴用密封圈的环形沟槽、设置在活塞上的过气孔以及设置在活塞外侧壁与缸筒内侧壁之间的配合间隙。
  7. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：所述的空心活塞杆的一端通过导向密封组件与缸筒内壁相连，空心活塞杆的另一端卡接在电机驱动系统的减速装置上。
  8. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：所述的电机驱动机构包括减速装置，减速装置的一端与导向杆相连，减速装置的另一端连接有电机，电机的接线口与电源连接，空心活塞杆的右端卡接在减速装置上。
  9. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：在缸筒右端卡接有与空心活塞杆同轴的定向导向外套；定向导向外套的一端位于缸筒上，定向导向外套的另一端位于电机驱动系统上。
  10. 根据权利要求1或2或3所述的电控压缩式气弹簧，其特征在于：密封导向管、缸筒、导向杆和空心活塞杆同轴布置。
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CN111120563A (zh) * 2020-01-21 2020-05-08 孙博坤 一种油气分离式三腔无空程汽车减震器
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CN114439811A (zh) * 2022-01-27 2022-05-06 安徽德鸿机件制造有限公司 一种卡车驾驶室用液压油缸

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