WO2014135099A1 - 曲轴式真空气泵及其擦玻璃装置 - Google Patents

曲轴式真空气泵及其擦玻璃装置 Download PDF

Info

Publication number
WO2014135099A1
WO2014135099A1 PCT/CN2014/072976 CN2014072976W WO2014135099A1 WO 2014135099 A1 WO2014135099 A1 WO 2014135099A1 CN 2014072976 W CN2014072976 W CN 2014072976W WO 2014135099 A1 WO2014135099 A1 WO 2014135099A1
Authority
WO
WIPO (PCT)
Prior art keywords
air pump
crankshaft
eccentric
crank
unit
Prior art date
Application number
PCT/CN2014/072976
Other languages
English (en)
French (fr)
Inventor
冯勇兵
Original Assignee
科沃斯机器人科技(苏州)有限公司
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 科沃斯机器人科技(苏州)有限公司 filed Critical 科沃斯机器人科技(苏州)有限公司
Priority to US14/773,107 priority Critical patent/US20160084243A1/en
Priority to EP14760716.2A priority patent/EP2966302A1/en
Publication of WO2014135099A1 publication Critical patent/WO2014135099A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/01—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being mechanical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/02—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for evacuating by absorption or adsorption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft

Definitions

  • the invention relates to a crank vacuum vacuum pump and a glass cleaning device thereof, and belongs to the technical field of mechanical manufacturing. Background technique
  • FIG. 1 is a schematic view showing the overall structure of a conventional eccentric vacuum pump.
  • the conventional vacuum air pump drives the air pump piston rod 300 through an eccentric wheel 200 mounted on the output shaft 110 of the motor 100 to reciprocate it to perform a vacuuming operation.
  • Fig. 2 is a schematic diagram showing the relationship between the distance between the center of gravity and the rotation angle of the existing eccentric vacuum pump. As shown in Fig. 2, when the rotation angle is 0°, the distance is also 0, and the distance value increases with the change of the rotation angle. When the rotation angle is 90°, the distance reaches the highest value of 0.55 mm; When the angle is from 90° to 180°, the distance gradually becomes smaller. The aforementioned change process is repeated during the rotation angle from 180° to 360°.
  • FIG. 2 It can be seen from Fig. 2 that since the high-speed motor is used to drive the eccentric wheel to rotate, the distance between the center of gravity and the rotating shaft changes greatly when rotating.
  • Figure 3 and Figure 4 show the force analysis of the radial force of the existing eccentric vacuum pump, X and Y, respectively. As shown in Figures 3 and 4, the centrifugal force generated by the rotation of the eccentric wheel and the force of the piston rod are such that the rotating shaft is subjected to a radial force in the X direction of the piston rod and a radial force perpendicular to the Y direction of the piston rod when rotating, with The change in the angle of rotation changes accordingly. As shown in Fig.
  • the technical problem to be solved by the present invention is to provide a crank-type vacuum air pump with a simple and compact structure.
  • the crank unit is used as a rotating shaft, and each of the crankshafts is centrally symmetrical, so that the overall center of gravity is in the rotating process. It is always located at the center of rotation and is not affected by the centrifugal force.
  • the force of the rotating shaft is always symmetrical with respect to the center of rotation, so that the radial force received by the shaft is basically zero, which greatly reduces the The vibration problem caused by the imbalance of force is stable in working condition.
  • the installation quantity of the crank unit can be adjusted as needed to obtain the suitable volume and volume of the vacuum pump.
  • a crankshaft type vacuum air pump includes a driving motor, a gas pump body and a piston air pump assembly disposed on the air pump body, wherein the air pump body is provided with a crank unit, and a top end of the crank unit is connected to the air pump body through an upper eccentric end The lower eccentric is connected to the driving motor, and the driving motor outputs power to the crank unit to rotate.
  • the crank unit is connected to the piston air pump assembly and drives the movement to complete the intake and exhaust operations of each piston pump assembly.
  • the crank unit includes a crankshaft, and an upper piston rod and a lower piston rod are respectively disposed on upper and lower sides of the crankshaft, and the lower piston rod and the upper piston rod are respectively disposed on the air pump body Piston air pump assemblies on different sides are connected.
  • the crankshaft includes a crankshaft body and two shaft portions.
  • the two shaft portions respectively extend upward and downward from the left and right ends of the crankshaft body, and the shaft portion of the crankshaft includes a piston rod connecting portion and an eccentric wheel connecting portion, and the piston rod passes
  • the bearing sleeve is disposed on the piston rod connecting portion, and the eccentric wheel connecting portion is inserted into the eccentric hole of the eccentric wheel to be fixed.
  • crankshaft In order to ensure that the crankshaft is always balanced by force and reduce vibration, the crankshaft is center-symmetrical.
  • the upper eccentric and the lower eccentric have the same structure, respectively comprising a wheel with a protruding axle on one side of the wheel and an eccentric hole on the other side; the upper eccentric and the lower The eccentric is symmetrically disposed with respect to the crankshaft unit.
  • the number of the crank unit is more than one, and the adjacent two crank units are connected by a connecting disc, and the connecting disc comprises a disc body and a connecting seat disposed on the upper and lower surfaces of the disc body. They are respectively connected to different crankshafts of two adjacent crankshaft units.
  • crank unit units Usually, the number of crank unit units is 2-3.
  • the invention also provides a glass cleaning device, comprising an adsorption unit and a walking unit, wherein the glass cleaning device is adsorbed on the glass surface by the adsorption unit, wherein the adsorption unit comprises a suction cup and a vacuum air pump, and the vacuum air pump provides a vacuum suction force to the suction cup, and the vacuum suction pump
  • the vacuum air pump uses the above-described crankshaft type vacuum air pump.
  • the structure of the present invention is simple and compact, and the crankshaft unit acts as a rotating shaft. Because each of the crankshafts is center-symmetrical, the center of gravity of the whole body is always located at the center of rotation during the rotation process, and is not affected by the centrifugal force to generate vibration; The rotation of the shaft by the piston rods on both sides is always symmetrical with respect to the center of rotation, so that the radial force received by the shaft is substantially zero, which greatly reduces the vibration problem caused by the unbalance of the force during the rotation, and the working state is stable. Moreover, since the crank unit itself includes the crankshaft body and the two shaft portions, the piston rod can be conveniently disposed on the piston rod connecting portion through the bearing, which greatly shortens the assembly time of the vacuum air pump.
  • DRAWINGS 1 is a schematic view showing the overall structure of a conventional eccentric vacuum pump
  • Figure 2 is a schematic diagram showing the relationship between the distance between the center of gravity of the existing eccentric vacuum pump and the rotating shaft and the angle of rotation;
  • FIG. 3 and FIG. 4 are respectively a view showing the analysis of the radial force X and Y of the existing eccentric vacuum pump shaft;
  • FIG. 5 is a schematic view of the overall structure of the embodiment of the present invention.
  • FIGS. 7 and 8 are respectively a view showing the analysis of the radial force X and the force of the crankshaft according to the embodiment of the present invention; A three-dimensional assembly drawing of a crankshaft unit according to Embodiment 2 of the present invention;
  • Figure 10 is a cross-sectional view showing a crank unit of a second embodiment of the present invention. detailed description
  • FIG. 5 is a schematic diagram of the overall structure of an embodiment of the present invention.
  • the present invention provides a crankshaft type vacuum air pump including a driving motor 1, a pump body 2, and a piston air pump assembly 3 disposed in the air pump body 2.
  • the air pump body 2 is provided with a crank unit to rotate
  • the center line of the output shaft of the drive motor 1 coincides with the center of rotation of the crank unit.
  • the top end of the crank unit is connected to the air pump body 2 via an upper eccentric 4, and the end is connected to the drive motor 1 via a lower eccentric 5, and the drive motor 1 outputs power to the crank unit, which is connected to the piston pump assembly 3 and drives the movement thereof. , completing the intake and exhaust operations of each piston pump assembly 3.
  • the crank unit includes a crankshaft 7, and an upper piston rod 8 and a lower piston rod 9 are respectively disposed on upper and lower sides of the crankshaft, and the lower piston rod 9 and the upper piston rod 8 are respectively respectively Piston air pump assemblies 3 disposed on different sides of the air pump body 2 are connected.
  • the crankshaft 7 includes a crankshaft body 71 and two shaft portions. The two shaft portions extend upward and downward from the left and right ends of the crankshaft body 71, respectively.
  • the shaft portion of the crankshaft 7 includes a piston rod connecting portion 72 and an eccentric wheel connection. In the portion 73, the piston rod is sleeved on the piston rod connecting portion 72, and the eccentric wheel connecting portion 73 is inserted into the eccentric hole of the eccentric wheel 4 to be fixed.
  • the axle of the lower eccentric 5 is fixedly coupled to the motor shaft, and the axle of the upper eccentric 4 is coupled to the air pump body 2 via a bearing.
  • the crankshaft 7 itself is symmetrical in center so that the center of gravity of the whole body is always located at the center of rotation during the rotation.
  • the upper eccentric 4 and the lower eccentric 5 have the same structure, respectively comprising a wheel 10, a convex axle 11 on one side of the wheel 10 and an eccentric hole 12 on the other side;
  • the eccentric 4 and the lower eccentric 5 are symmetrically disposed with respect to the crank unit.
  • crankshaft vacuum pump As shown in FIG. 5, the working process of the crankshaft vacuum pump provided by the present invention is as follows:
  • FIGS. 7 and 8 are respectively a graph showing the analysis of the radial force X and Y of the crankshaft according to the embodiment of the present invention.
  • Fig. 6 As shown in Fig. 6, as the angle of rotation changes, the distance between the center of gravity and the axis of rotation remains at 0, and no change occurs.
  • Fig. 7 with the change of the rotation angle, the maximum value of the radial force X is 1.75e-09N, and the minimum value is -1.75e-09N; as shown in Fig.
  • the crankshaft itself in the present invention is center-symmetrical, and the crankshaft type vacuum air pump is used so that the overall center of gravity is always located at the center of rotation during the rotation, and is not subjected to centrifugal force when rotating. The vibration is generated by the influence.
  • the rotation of the shaft by the piston rods on both sides is always symmetrical with respect to the center of rotation, so that the radial force received by the shaft is substantially zero, thereby attenuating the vibration problem caused by the unbalanced force during the rotation.
  • the crank unit itself since the crank unit itself includes the crankshaft body and the two shaft portions, the piston rod can be conveniently sleeved on the piston rod connecting portion through the bearing, which greatly shortens the assembly time of the vacuum air pump.
  • Figure 9 is a perspective view showing the crank unit of the second embodiment of the present invention
  • Figure 10 is a cross-sectional view showing the crank unit of the second embodiment of the present invention.
  • the number of crank unit units is one or more as needed, and two adjacent crank unit units are connected by a connecting disc 6, and the connecting disc 6 includes a disc body 61 and The connecting seats 62 disposed on the upper and lower surfaces of the disc are respectively connected to different crankshafts of the adjacent two crank units.
  • the number of crank unit units is 2-3.
  • the difference between the present embodiment and the first embodiment is that the number of the crank unit is different in the crank-type vacuum pump.
  • the other technical features in the embodiment are substantially the same as those in the first embodiment, and details are not described herein again.
  • the invention also provides a glass cleaning device, comprising an adsorption unit and a walking unit, wherein the glass cleaning device is adsorbed on the glass surface by the adsorption unit, wherein the adsorption unit comprises a suction cup and a vacuum air pump, and the vacuum air pump provides a vacuum suction force to the suction cup, and the vacuum suction pump
  • the vacuum air pump adopts the crank type vacuum air pump described in the first embodiment or the second embodiment.
  • crankshaft in the crank-type vacuum air pump provided by the present invention adopts a structure similar to that of an automobile engine crankshaft, and can be made into two connecting rods, four connecting rods or more, but generates electricity with a car.
  • the function of the integral crankshaft of the machine is different.
  • the crankshaft of the automobile engine is to make the number of cylinders acting during the movement process constant, so that the external force is constant during the operation.
  • the crankshaft of the present invention uses a segmented mounting method to enable assembly.
  • the crankshaft is always balanced during the action process, thus ensuring the dynamic balance and weakening the vibration caused by the unbalanced force; and making the center of gravity of the air pump coincide with the rotating shaft, which reduces the vibration caused by the inertial force.
  • the present invention eliminates the existing weights by applying the crank unit structure, and the structure is simple and compact.
  • the center of the crankshaft itself is symmetrical, the center of gravity of the whole body is always located at the center of rotation during the rotation process,
  • the vibration is generated by the influence of the centrifugal force; the force of the rotating shaft by the piston rods on both sides is always symmetrical with respect to the center of rotation, so that the radial force received by the rotating shaft is substantially zero, which greatly reduces the vibration problem caused by the unbalanced force during the rotating process. , effectively weaken the vibration sense and work stably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

一种曲轴式真空气泵，包括驱动电机（1）、气泵本体（2）和设置在气泵本体（2）上的活塞气泵组件（3），气泵本体（2）内设有曲轴单元，曲轴单元的顶端通过上偏心轮（4）与气泵本体（2）相连，末端通过下偏心轮（5）与驱动电机（1）相连，驱动电机（1）输出动力给曲轴单元使其转动，曲轴单元与活塞气泵组件（3）相连并带动其运动，完成活塞气泵组件（3）的进气和排气。该气泵结构简单紧凑，曲轴本身中心对称，使得一个或多个曲轴单元作为转轴，整体重心在转动过程中始终位于旋转中心上，不会因受到离心力而产生振动；转轴受到两侧活塞杆的力始终相对于旋转中心对称，使得转轴受到的径向力基本为零，大大减弱了转动过程中由于受力不平衡而产生的振动问题，工作状态稳定。

Description

曲轴式真空气泵及其擦玻璃装置 技术领域
本发明涉及一种曲轴式真空气泵及其擦玻璃装置， 属于机械制造技术领域。 背景技术
图 1为现有偏心轮式真空气泵的整体结构示意图。 如图 1所示， 现有的真空气泵 是通过安装在电机 100输出轴 110上的偏心轮 200带动气泵活塞杆 300， 使其往复运 动， 以实现抽真空动作的。 图 2为现有偏心轮式真空气泵重心与转轴的距离与旋转角 度之间的变化关系示意图。 如图 2所示， 当旋转角度为 0° 时， 距离也为 0， 随着旋转 角度的变化距离值也随之加大， 当旋转角度为 90° 时， 距离达到最高值 0.55mm; 当 旋转角度从 90° 到 180° 时，距离又逐渐变小。在旋转角度从 180° 到 360° 的过程中， 重复前述的变化过程。 由图 2可知， 由于使用高转速电机带动偏心轮转动， 转动时重 心与转轴的距离变化幅度较大。 图 3和图 4分别为现有偏心轮式真空气泵转轴受到径 向力 X和 Y受力分析图。 如图 3和图 4所示， 偏心轮转动产生的离心力和受到的活塞 杆的力使得转轴在转动时受到沿活塞杆的 X方向径向力和垂直于活塞杆的 Y方向径向 力， 随着旋转角度的变化相应发生变化。 如图 3所示， 随着旋转角度的变化， 径向力 X的最大值为 1.625e-06N， 最小值为 -2.00e-06N; 如图 4所示， 随着旋转角度的变化， 径向力 Y的最大值为 0.9N, 最小值为 -0.9N, 由图中数据可知， 交替变化的力之间的 差值较大， 这使得真空气泵出现严重的抖动现象。 如图 1所示， 为了减小振动， 目前 的做法是在偏心轮上增加一个配重块 400， 以平衡重心， 但效果仍然很不理想。 发明内容
本发明所要解决的技术问题在于针对现有技术的不足，提供一种曲轴式真空气泵， 结构简单紧凑， 曲轴单元作为转轴， 由于其中的每个曲轴本身都中心对称， 使得整体 的重心在转动过程中始终位于旋转中心上， 不会受到离心力的影响而产生振动； 转轴 受到两侧活塞杆的力始终相对于旋转中心对称， 使得转轴受到的径向力基本为零， 大 大减弱了转动过程中由于受力不平衡而产生的振动问题， 工作状态稳定； 同时， 可以 根据需要调整曲轴单元的安装数量， 获得真空气泵适合的气量和体积。
本发明的所要解决的技术问题是通过如下技术方案实现的： 一种曲轴式真空气泵， 包括驱动电机、 气泵本体和设置在气泵本体上的活塞气泵 组件， 所述气泵本体内设有曲轴单元， 曲轴单元的顶端通过上偏心轮与所述气泵本体 相连， 末端通过下偏心轮与驱动电机相连， 驱动电机输出动力给曲轴单元使其转动， 曲轴单元与活塞气泵组件相连并带动其运动， 完成每个活塞气泵组件的进气和排气动 作过程。
具体来说， 所述的曲轴单元包括曲轴， 在曲轴的上、 下两侧分别套设有上活塞杆 和下活塞杆， 所述的下活塞杆和上活塞杆分别与设置在所述气泵本体不同侧面的活塞 气泵组件相连。
所述曲轴包括曲轴本体和两个轴部， 两个轴部自曲轴本体的左、右两端分别向上、 向下延伸， 曲轴的轴部包括活塞杆连接部和偏心轮连接部， 活塞杆通过轴承套设在活 塞杆连接部上， 偏心轮连接部插入偏心轮的偏心孔内固定。
为了保证曲轴始终受力平衡并减少震动， 所述的曲轴中心对称。
为了简化设计， 所述上偏心轮和下偏心轮的结构相同， 分别包括轮盘， 在轮盘的 一侧设有凸出的轮轴， 另一侧设有偏心孔； 所述上偏心轮和下偏心轮相对于所述曲轴 单元对称设置。
根据需要， 所述曲轴单元的设置数量为一个以上， 相邻的两个曲轴单元之间通过 连接盘相连， 所述的连接盘包括盘体和设置在盘体上、 下表面上的连接座， 分别与相 邻的两个曲轴单元中的不同曲轴相连。
通常情况下， 所述曲轴单元的设置数量为 2-3个。
本发明还提供一种擦玻璃装置， 包含吸附单元和行走单元， 擦玻璃装置通过吸附 单元吸附于玻璃表面， 其中， 吸附单元包含吸盘和真空气泵， 真空气泵为吸盘提供真 空抽吸力， 且该真空气泵采用上述的曲轴式真空气泵。
综上所述， 本发明结构简单紧凑， 曲轴单元作为转轴， 由于其中的每个曲轴本身 中心对称， 使得整体的重心在转动过程中始终位于旋转中心上， 不会受到离心力的影 响而产生振动； 转轴受到两侧活塞杆的力始终相对于旋转中心对称， 使得转轴受到的 径向力基本为零， 大大减弱了转动过程中由于受力不平衡而产生的振动问题， 工作状 态稳定。 且由于曲轴单元本身包括曲轴本体和两个轴部， 活塞杆通过轴承可方便的套 设在活塞杆连接部上， 极大的縮短了真空气泵的装配时间。
下面结合附图和具体实施例， 对本发明的技术方案进行详细地说明。 附图说明 图 1为现有偏心轮式真空气泵的整体结构示意图；
图 2为现有偏心轮式真空气泵重心与转轴的距离与旋转角度之间的变化关系示意 图；
图 3和图 4分别为现有偏心轮式真空气泵转轴受到径向力 X和 Y受力分析图； 图 5为本发明实施例一整体结构示意图；
图 6为本发明实施例一重心与转轴的距离与旋转角度之间的变化关系示意图； 图 7和图 8分别为本发明实施例一曲轴受到径向力 X和 Y受力分析图； 图 9为本发明实施例二曲轴单元的立体装配图；
图 10为本发明实施例二曲轴单元的剖视图。 具体实施方式
实施例一
图 5为本发明实施例一整体结构示意图。 如图 5所示， 本发明提供一种曲轴式真 空气泵， 包括驱动电机 1、 气泵本体 2和设置在气泵本体 2内的活塞气泵组件 3， 所述 气泵本体 2上设有曲轴单元使其转动， 驱动电机 1输出轴的中心线与曲轴单元的旋转 中心重合。 曲轴单元的顶端通过上偏心轮 4与所述气泵本体 2相连， 末端通过下偏心 轮 5与驱动电机 1相连， 驱动电机 1输出动力给曲轴单元， 曲轴单元与活塞气泵组件 3相连并带动其运动， 完成每个活塞气泵组件 3 的进气和排气动作过程。 具体来说， 所述的曲轴单元包括曲轴 7， 在曲轴 Ί的上、 下两侧分别套设有上活塞杆 8和下活塞 杆 9， 所述的下活塞杆 9和上活塞杆 8分别与设置在所述气泵本体 2不同侧面的活塞 气泵组件 3相连。 所述曲轴 7包括曲轴本体 71和两个轴部， 两个轴部自曲轴本体 71 的左、 右两端分别向上、 向下延伸， 曲轴 7的轴部包括活塞杆连接部 72和偏心轮连接 部 73， 活塞杆通过轴承套设在活塞杆连接部 72上， 偏心轮连接部 73插入偏心轮 4的 偏心孔内固定。 下偏心轮 5的轮轴与电机转轴固定连接， 上偏心轮 4的轮轴通过轴承 连接在气泵本体 2上。 为了保证曲轴始终受力平衡并减少震动， 所述的曲轴 7本身中 心对称， 使得整体的重心在转动过程中始终位于旋转中心上。 为了简化设计， 所述上 偏心轮 4和下偏心轮 5的结构相同， 分别包括轮盘 10， 在轮盘 10的一侧设有凸出的 轮轴 11， 另一侧设有偏心孔 12; 所述上偏心轮 4和下偏心轮 5相对于所述曲轴单元对 称设置。
结合图 5所示， 本发明所提供的曲轴式真空气泵的工作过程是这样的： 驱动电机
1开始工作， 当电机转动时， 曲轴 7和上、 下偏心轮 4、 5同步转动， 带动上活塞杆 8 和下活塞杆 9进行往复运动， 使两端的活塞气泵组件 3同时进行抽气和排气， 从而对 与活塞气泵组件 3相连接的吸盘进行不间断地抽真空作业。
图 6为本发明实施例一重心与转轴的距离与旋转角度之间的变化关系示意图； 图 7和图 8分别为本发明实施例一曲轴受到径向力 X和 Y受力分析图。 如图 6所示， 随 着旋转角度的变化， 重心与转轴的距离始终保持为 0， 没有发生任何变化。 如图 7所 示， 随着旋转角度的变化， 径向力 X的最大值为 1.75e-09N， 最小值为 -1.75e-09N; 如 图 8所示， 随着旋转角度的变化， 径向力 Y的最大值为 0N， 最小值为 -3.75e-09N。 结 合图 6至图 8中的上述数据可知， 首先， 本发明中的曲轴本身中心对称， 使用曲轴式 真空气泵使得整体的重心在转动过程中始终位于旋转中心上， 转动的时候不会受到离 心力的影响而产生振动。 其次， 在转动过程中， 转轴受到两侧活塞杆的力始终相对于 旋转中心对称， 使得转轴受到的径向力基本为零， 从而减弱了转动过程中由于受力不 平衡而产生的振动问题。 且由于曲轴单元本身包括曲轴本体和两个轴部， 活塞杆通过 轴承可方便的套设在活塞杆连接部上， 极大的縮短了真空气泵的装配时间。 实施例二
图 9为本发明实施例二曲轴单元的立体装配图；图 10为本发明实施例二曲轴单元 的剖视图。如图 9并结合图 10所示，根据需要，所述曲轴单元的设置数量为一个以上， 相邻的两个曲轴单元之间通过连接盘 6相连，所述的连接盘 6包括盘体 61和设置在盘 体上、 下表面上的连接座 62， 分别与相邻的两个曲轴单元中的不同曲轴相连。 通常情 况下， 所述曲轴单元的设置数量为 2-3个。
本实施例与实施例一的区别仅仅在于， 在曲轴式真空气泵中设置的曲轴单元的数 量有所不同， 本实施例中的其他技术特征与实施例一基本相同， 在此不再赘述。 本发明还提供一种擦玻璃装置， 包含吸附单元和行走单元， 擦玻璃装置通过吸附 单元吸附于玻璃表面， 其中， 吸附单元包含吸盘和真空气泵， 真空气泵为吸盘提供真 空抽吸力， 且该真空气泵采用上述实施例一或实施例二所述的曲轴式真空气泵。 另外， 需要说明的是， 本发明所提供的曲轴式真空气泵中的曲轴， 采用了类似于 汽车发动机曲轴的结构， 可做成两个连杆， 四个连杆或者更多， 但与汽车发电机整体 式曲轴的作用有所区别， 汽车发动机曲轴是为了使其运动过程中作用的气缸数一定， 使动作过程中对外作用力恒定。 而本发明中的曲轴使用的是分段安装的方式， 使装配 方便， 并在作用过程中曲轴始终受力平衡， 从而保证了动平衡， 减弱由于受力不平衡 导致的震动； 且使得气泵整体的重心与转轴重合， 减弱了惯性力引起的震动。 综上所 述， 本发明通过对曲轴单元结构的应用， 取消了现有的配重块， 结构简单紧凑， 由于 曲轴本身中心对称， 使得整体的重心在转动过程中始终位于旋转中心上， 不会受到离 心力的影响而产生振动； 转轴受到两侧活塞杆的力始终相对于旋转中心对称， 使得转 轴受到的径向力基本为零，大大减弱了转动过程中由于受力不平衡而产生的振动问题， 有效地减弱振动感工作状态稳定。

Claims

权利要求书
1、 一种曲轴式真空气泵， 包括驱动电机 （1)、 气泵本体 （2) 和设置在气泵本体 上的活塞气泵组件 （3)， 其特征在于， 所述气泵本体 （2) 内设有曲轴单元， 曲轴单元 的顶端通过上偏心轮 （4) 与所述气泵本体 （2) 相连， 末端通过下偏心轮 （5) 与驱动 电机 （1) 相连， 驱动电机 （1) 输出动力给曲轴单元使其转动， 曲轴单元与活塞气泵 组件 （3) 相连并带动其运动， 完成每个活塞气泵组件的进气和排气动作过程。
2、 如权利要求 1所述的曲轴式真空气泵， 其特征在于， 所述的曲轴单元包括曲轴 (7)， 在曲轴 （7) 的上、 下两侧分别套设有上活塞杆 （8) 和下活塞杆 （9)， 所述的 下活塞杆 （9) 和上活塞杆 （8) 分别与设置在所述气泵本体 （2) 不同侧面的活塞气泵 组件 （3) 相连。
3、 如权利要求 2所述的曲轴式真空气泵， 其特征在于， 所述曲轴 （7) 包括曲轴 本体 （71) 和两个轴部， 两个轴部自曲轴本体 （71) 的左、 右两端分别向上、 向下延 伸， 曲轴的轴部包括活塞杆连接部 （72)和偏心轮连接部 （73)， 活塞杆通过轴承套设 在活塞杆连接部 （72) 上， 偏心轮连接部 （73) 插入偏心轮的偏心孔内固定。
4、 如权利要求 3所述的曲轴式真空气泵， 其特征在于， 所述的曲轴 （7) 中心对 称。
5、 如权利要求 3所述的曲轴式真空气泵， 其特征在于， 所述上偏心轮 （4) 和下 偏心轮 （5) 的结构相同， 分别包括轮盘 （10)， 在轮盘 （10) 的一侧设有凸出的轮轴
(11)， 另一侧设有偏心孔 （12); 所述上偏心轮 （4) 和下偏心轮 （5) 相对于所述曲 轴单元对称设置。
6、 如权利要求 4或 5所述的曲轴式真空气泵， 其特征在于， 所述曲轴单元的设置 数量为一个以上， 相邻的两个曲轴单元之间通过连接盘 （6)相连， 所述的连接盘 （6) 包括盘体 （61) 和设置在盘体上、 下表面上的连接座 （62)， 分别与相邻的两个曲轴单 元中的不同曲轴 （7) 相连。
7、 如权利要求 6所述的曲轴式真空气泵， 其特征在于， 所述曲轴单元的设置数量 为 2-3个。
8、 一种擦玻璃装置， 包含吸附单元和行走单元， 擦玻璃装置通过吸附单元吸附于 玻璃表面， 所述吸附单元包含吸盘和真空气泵， 真空气泵为吸盘提供真空抽吸力， 其 特征在于， 所述真空气泵为权利要求 1-7任一项所述的曲轴式真空气泵。
PCT/CN2014/072976 2013-03-06 2014-03-06 曲轴式真空气泵及其擦玻璃装置 WO2014135099A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/773,107 US20160084243A1 (en) 2013-03-06 2014-03-06 Crankshaft-type vacuum air pump and glass-wiping apparatus thereof
EP14760716.2A EP2966302A1 (en) 2013-03-06 2014-03-06 Crankshaft-type vacuum air pump and glass-wiping apparatus thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310071461.3 2013-03-06
CN201310071461.3A CN104033356B (zh) 2013-03-06 2013-03-06 曲轴式真空气泵及其擦玻璃装置

Publications (1)

Publication Number Publication Date
WO2014135099A1 true WO2014135099A1 (zh) 2014-09-12

Family

ID=51464289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/072976 WO2014135099A1 (zh) 2013-03-06 2014-03-06 曲轴式真空气泵及其擦玻璃装置

Country Status (4)

Country Link
US (1) US20160084243A1 (zh)
EP (1) EP2966302A1 (zh)
CN (1) CN104033356B (zh)
WO (1) WO2014135099A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279267A (zh) * 2014-09-22 2015-01-14 广西玉柴机器股份有限公司 曲轴平衡重

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6437785B2 (ja) * 2014-10-23 2018-12-12 シナノケンシ株式会社 ピストン駆動装置
CN108343582A (zh) * 2017-11-11 2018-07-31 罗文青 一种四缸水平对置风冷真空泵
CN113729545B (zh) * 2017-12-26 2023-09-19 科沃斯机器人股份有限公司 一种机器人控制方法、存储介质和机器人
CN112283071B (zh) * 2020-10-13 2022-03-01 江西闪石压缩机节能科技有限公司 一种直线往复活塞式压缩机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1456809A (zh) * 2003-01-15 2003-11-19 侯亮 全平衡无振动微型无油润滑压缩机
JP2006009636A (ja) * 2004-06-24 2006-01-12 Sakushiyon Gas Kikan Seisakusho:Kk 多気筒往復圧縮機
CN101216026A (zh) * 2002-12-16 2008-07-09 开利公司 唇形密封件的耐磨套筒
CN101761618A (zh) * 2009-10-16 2010-06-30 北京中清能发动机技术有限公司 往复运动和旋转运动相互转换的机构及其部件、设备
CN202376015U (zh) * 2011-11-15 2012-08-15 王靖瑜 智能擦玻璃机器人
CN102777343A (zh) * 2012-06-20 2012-11-14 杭州海胜制冷设备有限公司 单驱动多缸压缩机结构
CN203130412U (zh) * 2013-03-06 2013-08-14 科沃斯机器人科技(苏州)有限公司 曲轴式真空气泵及其擦玻璃装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1715489A (en) * 1925-07-06 1929-06-04 Baer Alfred Crank shaft
WO2008085920A2 (en) * 2007-01-05 2008-07-17 Efficient-V, Inc. Motion translation mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101216026A (zh) * 2002-12-16 2008-07-09 开利公司 唇形密封件的耐磨套筒
CN1456809A (zh) * 2003-01-15 2003-11-19 侯亮 全平衡无振动微型无油润滑压缩机
JP2006009636A (ja) * 2004-06-24 2006-01-12 Sakushiyon Gas Kikan Seisakusho:Kk 多気筒往復圧縮機
CN101761618A (zh) * 2009-10-16 2010-06-30 北京中清能发动机技术有限公司 往复运动和旋转运动相互转换的机构及其部件、设备
CN202376015U (zh) * 2011-11-15 2012-08-15 王靖瑜 智能擦玻璃机器人
CN102777343A (zh) * 2012-06-20 2012-11-14 杭州海胜制冷设备有限公司 单驱动多缸压缩机结构
CN203130412U (zh) * 2013-03-06 2013-08-14 科沃斯机器人科技(苏州)有限公司 曲轴式真空气泵及其擦玻璃装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279267A (zh) * 2014-09-22 2015-01-14 广西玉柴机器股份有限公司 曲轴平衡重

Also Published As

Publication number Publication date
CN104033356B (zh) 2017-09-12
CN104033356A (zh) 2014-09-10
US20160084243A1 (en) 2016-03-24
EP2966302A1 (en) 2016-01-13

Similar Documents

Publication Publication Date Title
WO2014135099A1 (zh) 曲轴式真空气泵及其擦玻璃装置
JP5488557B2 (ja) 回転機器の制振装置
CN103807174B (zh) 一种三缸滚动转子式压缩机
KR100867623B1 (ko) 압축기의 진동 저감장치
JP6199293B2 (ja) 密閉型圧縮機
CN105465271A (zh) 平衡重机构和电动工具
CN203962324U (zh) 具有外转子式电机的压缩机
JP4752241B2 (ja) 往復動式圧縮機
CN102062098A (zh) 一种用于涡旋压缩机的平面十字滑环
CN102801358A (zh) 双向磁力耦合轴向激励并限位的转轴式压电发电机
CN203130412U (zh) 曲轴式真空气泵及其擦玻璃装置
CN201093031Y (zh) 发动机曲轴的配重结构
CN104494182A (zh) 一种新型高速压力机动平衡系统
CN201991728U (zh) 一种制冷式压缩机曲轴的配重平衡结构
CN102094826A (zh) 一种涡旋压缩机的平面十字联轴节
WO2014135101A1 (zh) 真空气泵及擦玻璃装置
CN2821227Y (zh) 具有活动平衡锤的涡旋压缩机
CN201284814Y (zh) 发动机往复惯性力平衡机构
CN105818982B (zh) 集阵振翅机
CN206377000U (zh) 一种新型的空压机主机
CN103727196B (zh) 完全平衡型曲轴传动装置及其压缩机
CN207321030U (zh) 一种自平衡电机轴组合结构
CN206668507U (zh) 一种曲柄轴
CN201988510U (zh) 一种回转移动筛
CN205780553U (zh) 一种减少机械共振的空压机装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14760716

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2014760716

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14773107

Country of ref document: US