WO2015169215A1 - 臂杆活塞联动式空气压缩机 - Google Patents

臂杆活塞联动式空气压缩机 Download PDF

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Publication number
WO2015169215A1
WO2015169215A1 PCT/CN2015/078347 CN2015078347W WO2015169215A1 WO 2015169215 A1 WO2015169215 A1 WO 2015169215A1 CN 2015078347 W CN2015078347 W CN 2015078347W WO 2015169215 A1 WO2015169215 A1 WO 2015169215A1
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Prior art keywords
cam
arm
piston
air compressor
arc
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PCT/CN2015/078347
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English (en)
French (fr)
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黄荣嵘
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黄荣嵘
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Publication of WO2015169215A1 publication Critical patent/WO2015169215A1/zh

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    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/053—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with an actuating element at the inner ends of the cylinders

Definitions

  • the invention relates to the field of air compressors, and in particular to an arm piston-coupled air compressor.
  • the widely used air compressors mainly include a crankshaft piston type or a twin-screw squeeze type air compressor.
  • the conventional crankshaft piston type air compressor is powered by a crankshaft and is driven by a crank to drive a cylindrical cylinder piston device.
  • the piston makes a linear reciprocating motion, and the piston cooperates with the cylinder to complete the intake air, and then compresses and delivers the high pressure air.
  • the twin-screw squeeze type air compressor the high-pressure air is output by the twin-screw high-speed rotation and the screwing of the two-screw threads.
  • the structure is simple and reliable, the manufacturing cost is low, the volume and weight are small, and the efficiency is high.
  • the present invention provides an arm piston-coupled air compressor, comprising: a cylindrical cylinder and a transmission shaft, the cylindrical cylinder has a cavity inside, and the transmission shaft is rotatably disposed in the cavity.
  • the drive shaft is located at an axial position of the cylindrical cylinder;
  • the compression device is disposed on the cylindrical cylinder, and the compression device comprises: four sets of cylinders and a piston disposed in the cylinder, the cylinders are arranged along a radial direction of the cylindrical cylinder Arranged on the cylinder wall of the cylindrical cylinder and along the circumferential direction of the cylinder wall, the bottom of the cylinder is provided with a one-way intake valve and a one-way outlet valve, and the tail portion of the piston can be extended and retracted in the cavity; the cam mechanism,
  • the fixing mechanism is fixed on the transmission shaft and rotates together with the transmission shaft.
  • the cam mechanism has a symmetrically arranged driving portion, and the driving portion performs a circular motion around the transmission shaft to form a rotation track; four interlocking arms, the first end and the end of the arm are hinged to each other to form Linking the frame, and the first and second connecting ends of the four arms are respectively hinged with the tails of the corresponding pistons, and the inner side walls of each of the arms are provided with a working curve matched with the rotating track; wherein the cam mechanism drives Root arm linkage so as to drive the piston along the cylinder axis do stretching operation, in conjunction with a horizontal frame and the vertical extreme position of the extreme positions in the linkage.
  • the four arms are equal in length and the cylinders are evenly arranged along the circumferential direction of the cylinder wall.
  • the cam mechanism includes a cam bracket and a cam runner fixed to the propeller shaft, and the cam runner is disposed at both ends of the cam bracket to form a driving portion.
  • the working curve of each arm comprises:
  • the incision arc coincides with the rotation trajectory when the linkage frame is at the horizontal limit position; the arc is cut out, and the cutting arc of the arm coincides with the rotation trajectory when the linkage frame is at the vertical limit position; the arc is driven, At the same time, it is smoothly connected with the cutting arc and the cutting arc, and the driving wheel is driven to be linked when the cam runner contacts the driving arc.
  • the cam bracket has an I-shape, and the space on both sides of the I-shaped cam bracket forms a yielding region of the inner side wall of the arm; the cam runner is mounted on the two sides of the I-shaped cam bracket through the cam runner shaft The middle position of the end; the end and the end of the arm are hinged by the arm connecting shaft.
  • each of the two ends of the arm connecting shaft is provided with a pressure feeding roller; the end surface of the working wall of the cam bracket is provided with an auxiliary cam that cooperates with the pressure feeding roller, and the auxiliary cam can be squeezed when the cam bracket rotates Corresponding pinch roller.
  • the arm connecting shaft is provided with a roller.
  • the central position of the cam mechanism is provided with a flat cam
  • the driving portion is symmetrically disposed at two ends of the flat cam
  • the inner side wall of each arm is further provided with a pressing surface that cooperates with the flat cam, and the cam mechanism passes through the driving portion.
  • Cooperating with the working curve, the flat cam and the pressing surface cooperate to drive the four arms for linkage.
  • the flat cam has two symmetrical working faces, and when the cam mechanism rotates, the two working faces on the flat cam respectively contact the pressing faces on the opposite arms to drive the opposing arms to open;
  • the working curve of the root arm includes: a cutting arc, which is an open shape; and a driving arc, one end of which is smoothly connected with the incision arc, and the other end of the driving arc intersects the inner side wall of the arm at the cutting point;
  • the cam mechanism rotates, the cam runner slides in after the cutting arc and contacts the driving arc to drive the arm rod.
  • the bottom end portion of the cylinder is exposed outside the cylinder wall of the cylindrical cylinder, and the intermediate portion of the cylinder is provided with an auxiliary intake port.
  • the one-way outlet valve is connected to the air conduit.
  • a plurality of sets of compression devices are arranged along the axial direction of the cylindrical cylinder, the plurality of compression devices being jointly driven by the drive shaft.
  • the invention has the following beneficial effects: utilizing the technical characteristics of the cam drive to make the piston work well with the arm and the pressure feeding roller, the structure is simple and reliable, and the key components are low in manufacturing cost and small in size. Light weight, higher efficiency than general air compressors.
  • FIG. 1 is a schematic view showing the overall structure of an arm piston-coupled air compressor according to the present invention
  • 2-1 is a front elevational view showing a cam mechanism and a linkage frame in an arm piston-coupled air compressor according to the present invention
  • 2-3 is a schematic structural view of a cam mechanism in an arm piston-coupled air compressor according to the present invention.
  • 3-1 is a schematic structural view of an arm in an arm piston-coupled air compressor according to the present invention.
  • 3-2 is a schematic view showing the connection of two arms in the boom-and-rod type air compressor according to the present invention.
  • 3-3 is a schematic view showing the connection of four arms in the boom-and-rod type air compressor according to the present invention.
  • Figure 4-1 is a schematic view showing the linkage frame of the boom-and-rod type air compressor according to the present invention in a horizontal limit position;
  • 4-2 is a schematic view showing the cutting arc of the arm in the boom piston interlocking air compressor according to the present invention
  • 4-3 is a schematic view showing the linkage frame in a vertical limit position in the boom piston interlocking air compressor according to the present invention
  • 4-4 is a schematic view showing the cut-out arc of the arm in the boom-and-rod type air compressor according to the present invention.
  • FIGS. 4-6 are schematic diagrams showing the driving arc of the arm in the boom-and-rod type air compressor according to the present invention.
  • FIGS. 4-7 are schematic diagrams showing the geometrical drawing of the working curve of the arm in the boom-and-rod type air compressor according to the present invention.
  • Figure 5-1 is a schematic view showing the working state of the boom-and-rod piston type air compressor according to the present invention before starting;
  • Figure 5-2 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 5-1;
  • 5-3 is a schematic view showing a state in which a cam mechanism starts to drive a linkage of a boom in an arm piston-coupled air compressor according to the present invention
  • Figure 5-4 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 5-3;
  • Figure 6-1 is a schematic view showing a state in which the cam mechanism is rotated by 45 degrees in the boom-and-rod type air compressor according to the present invention
  • Figure 6-2 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 6-1;
  • 6-3 is a schematic view showing a state in which a cam mechanism is rotated by 90 degrees in an arm piston-coupled air compressor according to the present invention
  • Figure 6-4 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 6-3;
  • 7-1 is a schematic view showing a state in which the interlocking frame of the boom-and-rod type air compressor according to the present invention is switched from a vertical limit position to a horizontal limit position;
  • Figure 7-2 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 7-1;
  • FIG. 7-3 is a schematic view showing a state in which the cam mechanism is rotated by 180 degrees in the boom-and-rod type air compressor according to the present invention
  • Figure 7-4 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 7-3;
  • 8-1 is a schematic view showing a state in which the cam mechanism is rotated by 270 degrees in the boom-and-rod type air compressor according to the present invention
  • Figure 8-2 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 8-1;
  • FIG. 8-3 is a schematic view showing a state in which the cam mechanism is rotated 360 degrees in the boom-and-rod type air compressor according to the present invention.
  • Figure 8-4 is a schematic view showing the relationship between the cam mechanism and the arm in the working state shown in Figure 8-3;
  • Figure 9 is a schematic view showing the structure of another cam mechanism and an arm in an arm piston-coupled air compressor according to the present invention.
  • FIG. 10 is a schematic view showing the overall structure of an arm piston-coupled air compressor according to another embodiment of the present invention.
  • FIG. 11 is a front elevational view showing a cam mechanism and a linkage frame in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • FIG. 12 is a side elevational view of a cam mechanism and a linkage frame in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • FIG. 13 is a schematic structural view of a cam mechanism in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • FIG. 14 is a schematic structural view of an arm in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • 15 is a schematic view showing a state of cooperation between an arm and a cam mechanism in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • 16 is a schematic view showing a state of cooperation between an arm and a cam mechanism in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • FIG. 17 is a linkage of an arm piston-coupled air compressor according to another embodiment of the present invention. Schematic diagram of the frame at a horizontal extreme position;
  • FIG. 18 is a schematic view showing the cooperation of the arm and the cam mechanism when the linkage frame of the boom piston interlocking air compressor is in the horizontal limit position according to another embodiment of the present invention
  • FIG. 19 is a schematic view showing a state in which a cylinder in a vertical direction starts to be compressed in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • 20 is a schematic view showing the cooperation of the arm and the cam mechanism when the cylinder in the vertical direction starts to compress in the boom piston type air compressor according to another embodiment of the present invention
  • 21 is a schematic view showing a linkage frame of a boom-and-rod type air compressor in a square according to another embodiment of the present invention.
  • 22 is a schematic view showing the cooperation of the arm and the cam mechanism when the linkage frame of the boom piston type air compressor is in a square shape according to another embodiment of the present invention
  • FIG. 23 is a schematic view showing a linkage frame in a vertical limit position in an arm piston-coupled air compressor according to another embodiment of the present invention.
  • 24 is a schematic view showing the cooperation of the arm and the cam mechanism when the linkage frame of the boom piston interlocking air compressor is in the vertical limit position according to another embodiment of the present invention.
  • Figure 25 is a first operational view of a boom-and-rod piston type air compressor according to another embodiment of the present invention.
  • 26 is a schematic view showing a second working state of an arm piston-coupled air compressor according to another embodiment of the present invention.
  • Figure 27 is a schematic view showing a third operational state of the boom-and-rod piston type air compressor according to another embodiment of the present invention.
  • an arm piston-coupled air compressor includes a cylindrical cylinder 1, a transmission shaft 2, and a compression device (not shown), wherein the cylindrical cylinder 1
  • the inside has a cavity (not shown), the drive shaft 2 is rotatably disposed in the cavity, and the drive shaft 2 is at the axial position of the cylindrical cylinder 1.
  • the cylindrical cylinder 1 serves as the air.
  • a skeleton of the compressor is not particularly limited in its specific shape as long as the drive shaft 2 can be mounted and the compression device can be disposed.
  • the compression device comprises four sets of cylinders 7 and pistons (6a1, 6a2, 6b1, 6b2) arranged in the cylinder 7, the cylinders 7 being of the same specification, and the cylinders 7 being arranged in the cylinders of the cylindrical cylinders 1 in the radial direction thereof.
  • the four cylinders 7 are evenly arranged along the circumferential direction of the cylinder wall.
  • the piston 6a1 and the piston 6a2 are disposed opposite to each other in the vertical direction
  • the piston 6b1 and the piston 6b2 are disposed in the horizontal direction.
  • the tail portion can be retracted and retracted in the cavity, and the piston (6a1, 6a2) and the piston (6b1, 6b2) respectively perform a cycle of suction or compression.
  • the bottom of the cylinder 7 is provided with a one-way intake valve 10 and a one-way air outlet.
  • the valve 8 cooperates with the cylinder to complete the suction or pressure work.
  • the telescopic movement of the piston (6a1, 6a2) and the piston (6b1, 6b2) is realized by the linkage of the four arms (5a1, 5a2, 5b1, 5b2) by the cam mechanism.
  • the cam mechanism is fixed on the transmission shaft 2 and rotates together with the transmission shaft 2, and the cam mechanism has a symmetrically disposed driving portion, and the driving portion moves around the transmission shaft 2 to form a rotation locus 17 (see FIG. 4-1).
  • the cam mechanism can be designed such that the driving portion is two cam runners (13a, 13b), and the two cam runners (13a, 13b) are mounted on the cam branch.
  • the cam bracket 3 is fixedly mounted on the transmission shaft 2, wherein the cam bracket 3 has an I-shape, and the space on both sides of the I-shaped cam bracket forms the inner side wall of the arm (5a1, 5a2, 5b1, 5b2)
  • the cam runners (13a, 13b) are mounted on both ends of the I-shaped cam bracket through the cam runner shaft 4, and the cam runners (13a, 13b) are in the middle position of the I-shaped cam bracket, the cam runner (13a, 13b) rolls along the rotational trajectory 17.
  • first and the rear ends of the four arms (5a1, 5a2, 5b1, 5b2) are hinged to each other to form a linkage frame, and the end ends of the four arms (5a1, 5a2, 5b1, 5b2) are respectively connected with the corresponding pistons (6a1, The tail joints of 6a2, 6b1, 6b2), for higher sensitivity, the end of the boom, the end of the boom and the tail of the piston can be hinged by a boom connecting shaft 12, the arm connecting shaft 12 is also assembled with a roller 100 (see Figure 6-2). In this way, while two symmetrical pistons are inhaling, the other two symmetrical pistons complete the work of compressing and outputting high-pressure air.
  • each piston works twice, and the inhalation and pressure transmission are completed with the corresponding cylinders.
  • the pistons work synchronously back and forth, improving machine motion balance, reliability, reducing vibration noise and increasing service life.
  • the arm bars (5a1, 5a2, 5b1, 5b2) are arranged in equal length, and the inner side wall is provided with a working curved surface matching the movement track of the driving portion, and the cam mechanism 3 is provided.
  • the cam runners (13a, 13b) of the cam mechanism are in contact with the inner side walls of the working curved portion of the arms (5a1, 5a2, 5b1, 5b2), thereby causing the shape of the linkage frame to be changed due to the four arms.
  • the end-to-end ends of (5a1, 5a2, 5b1, 5b2) are respectively hinged to the tails of the corresponding pistons (6a1, 6a2, 6b1, 6b2), that is, the end-to-end ends of the four arms (5a1, 5a2, 5b1, 5b2) It can only move linearly along the axial direction of the corresponding cylinder 7, so when the shape of the linkage frame changes, the end and end of the four arms (5a1, 5a2, 5b1, 5b2) can drive the piston (6a1, 6a2). , 6b1, 6b2) do the telescopic action.
  • the linkage frame has a horizontal limit position and a vertical limit position in the linkage, and the horizontal limit position of the linkage frame corresponds to the top dead center (compressed air) of the piston (6b1, 6b2) and the stop of the piston (6a1, 6a2).
  • Point (intake) the vertical limit position of the linkage frame corresponds to the top dead center (compressed air) of the piston (6a1, 6a2) and The bottom dead center of the piston (6b1, 6b2) (intake).
  • the cam mechanism when the cam mechanism drives the four arms for linkage, it may also be designed such that a pressure feed roller 15 is mounted on both ends of each arm connecting shaft 12 on the end surface of the work wall of the cam bracket 3.
  • Each is provided with an auxiliary cam 16 that cooperates with the pressure feed roller 15, and the auxiliary cam 16 can press the corresponding pressure feed roller 15 when the cam holder 3 rotates (see FIG. 7-2), thereby causing the squeezed pressure feed roller 15 to be pressed.
  • the arm is easily opened.
  • the cam wheel (13a, 13b) and the working surface pressing on the arm and the pressing of the auxiliary cam 16 and the pressure roller 15 jointly drive the four arm linkages, thereby effectively reducing friction and noise. , improve the fluency of work.
  • the driving portion may be designed as a rolling body having a circular surface integrally formed with both ends of the cam holder 3 (see FIG. 9).
  • the rolling body and the arm (5a1, 5a2, 5b1, 5b2)
  • the working surface is sliding friction
  • the driving portion is preferably designed in the form of a cam runner (13a, 13b).
  • the working curve (actually the working surface) on the inner side wall of the arm (5a1, 5a2, 5b1, 5b2).
  • the working curve includes the driving arc 18 disposed in the middle of the arm and the cutting arc of the arm. 19 and the cutting arc 20 of the arm (see Fig. 3-3), it should be noted that the design working curve is for the movement mechanism of the cam mechanism to keep the cam roller and the arm in contact when the driving arm moves, the working curve
  • the optimized design can make the movement of the cam roller and the arm more smooth, reduce the friction and collision, and help to improve the running speed and stability of the machine, instead of realizing the necessary conditions for the linkage of the arm, for example, as shown in Figure 9.
  • the working curve on the inner side wall of the arm is a circular arc and a straight line connected with the circular arc.
  • the cam 3a intermittently drives the arm (5a, 5b) to interlock, however, In this driving mode, the cam 3a will hit the arm (5a, 5b), the noise during operation of the compressor is relatively large, and the arm (5a, 5b) is easily broken.
  • a cam mechanism with a cam runner (13a, 13b) is designed, and the working surface on the inner side wall of the arm when the cam mechanism drives the arm linkage
  • the contact with the cam runners (13a, 13b) is ensured during the movement, and the working curve on the inner side wall of the boom can be designed according to the geometric principle, wherein the arm
  • the main function of the cutting arc 19 is to ensure that the cam runners (13a, 13b) are in contact with the inner side wall of the arm when the cam mechanism drives the arm linkage, which is advantageous for the movement stability;
  • the main function of the driving arc 18 in the middle of the arm is When the cam roller contacts the driving arc 18, the force of the cam roller is gradually received by the circle and the arc to make the arm move, while avoiding the vibration and noise generated by the intense friction; the main arc of the arm is cut out 19
  • the function is that the arm receives the sliding pressure of the cam roller to drive a set of pistons to move to the upper dead center
  • the working curve on the inner side wall of the arm is obtained by the following method, and one of the arms is taken as an example for explanation:
  • a and B be the axes of the two ends of the boom, respectively, where A is the front dead center, B is the rear dead center, and O1 is the center of the rotation track 17, O1A ⁇ BB1.
  • OE is the radius of the arc L1, and the arc L1 intersects the vertical bisector of the line AB at point D;
  • the connecting OG intersects the vertical bisector of line segment AB at point O3;
  • the arc L2 is drawn with O3 as the center, the arc L2 passes through the point F and the point G, the arc FG is half of the driving arc 18, and the arc GE is the cutting arc 20 of the arm.
  • the design work curve is for the cam mechanism to make the movement of the cam roller and the arm rod smoother when the driving arm is moved, reducing friction and collision, and improving the running speed and stability of the machine, instead of implementing the arm.
  • the necessary conditions for the linkage of the rod therefore, the embodiment also provides a way to obtain the working curve, as follows:
  • the working curve drawn in this way also ensures a smooth fit of the cam roller and the arm.
  • the bottom end portion of the cylinder 7 is exposed outside the cylinder wall of the cylindrical cylinder 1, and the intermediate portion of the cylinder 7 is provided with the auxiliary intake port 11, which improves the intake efficiency.
  • the one-way air outlet valve 8 is connected to the air guiding tube 9, which is used to connect with a device that requires compressed air, for example, to input high-pressure air to the pressure vessel or to directly supply a high-pressure air source to the pneumatic tool.
  • the air compressor can be applied to an engine in which a compression cylinder is separated from a work cylinder, and can be used as an integral part of the engine to provide high-pressure air for the ignition cylinder of the engine, as the patent number that the applicant has applied for is ZL201320009730.9 turbine rotor energy-saving engine.
  • a plurality of sets of compression devices may be arranged along the axial direction of the cylindrical cylinder 1, and the plurality of compression devices are jointly driven by the transmission shaft 2 to improve the efficiency of the compressed air.
  • the cam mechanism continues to rotate, and the cam runners (13a, 13b) are rotated along the cutting arc 19 of the arms (5a1, 5a2) to the drive arc 18 of the arms (5a1, 5a2) (see Figure 5-4) and passed
  • the driving arc 18 of the arm (5a1, 5a2) acts on the arm (5a1, 5a2)
  • the auxiliary cam 16 acts on the pressure roller 15, and the pressure roller 15 simultaneously pushes the piston (6a1, 6a2) to compress along the cylinder
  • the piston (6b1, 6b2) also moves synchronously along the cylinder to the bottom dead center due to the arm joint action, and inhales into the cylinder through the one-way air inlet 10.
  • the cam mechanism continues to rotate, and the cam runners (13a, 13b) drive the arm rods (5a1, 5a2) to interlock the linkage frame, thereby pushing the pistons (6a1, 6a2) to continue to compress upward and downward along the cylinders, and the cam runners (13a, 13b)
  • the drive arc 18 along the arm (5a1, 5a2) is rotated toward the cut-out arc 20 of the arm (5a1, 5a2) (see Fig. 6-2), when the cam runner (13a, 13b) is turned to the arm ( When the arc inflection point of 5a1, 5a2) is 21 (see Fig.
  • the cam mechanism is rotated exactly 90 degrees, the piston (6a1, 6a2) is compressed to reach the top dead center, and the compressed air is pressed to the air duct through the one-way air outlet valve 8. 9.
  • the pressure of the piston (6a1, 6a2) disappears, the piston (6b1, 6b2) runs to the bottom dead center at the same time, and the air intake port 11 also starts to take in air to complete the intake work. This process completes the two piston strokes. Compression and inhalation.
  • the cam mechanism continues to rotate, and the cam mechanism drives the cam runners (13a, 13b) to slide the arc inflection point 21 of the arm (5a1, 5a2) and along the arm (5b1) , the cutting arc 19 of 5b2) is rotated to the driving arc 18 of the arm (5b1, 5b2) (see Fig. 7-2), and during the rotation, the cam wheel (13a, 13b) is paired with the arm (5b1, 5b2) There is no force, all the pistons and the arms are stationary.
  • the cam runners (13a, 13b) are in contact with the driving arcs 18 of the arms (5b1, 5b2) and generate a force, the auxiliary cams 16 are simultaneously pressed.
  • the feed wheel 15 generates a force, at which time the piston (6a1, 6a2) moves inwardly along the cylinder to the bottom dead center, while the piston (6b1, 6b2) compresses the air to the upper dead center.
  • the cam wheel (13a, 13b) drives the arm (5b1, 5b2) to rotate to 180 degrees
  • the cam wheel (13a, 13b) turns to the arc inflection point 21 of the arm (5b1, 5b2)
  • the piston (6b1) , 6b2) reaches the top dead center
  • the cylinder gas is pressed into the air pipe 9
  • the pressure received by the piston (6b1, 6b2) disappears temporarily, while the piston (6a1, 6a2) simultaneously reaches the bottom dead center and completes the suction.
  • the machine completed the piston compression and suction for 4 times.
  • the cam mechanism continues to rotate to 270 degrees, the cam
  • the mechanism driving arm (5a1, 5a2) moves and runs along the working curve to the arc inflection point 21 of the arm (5a1, 5a2), and the piston (6a1, 6a2) is compressed to the top dead center along the cylinder, and the piston (6b1, 6b2) operates.
  • the drive shaft 2 continues to rotate to 360 degrees, the cam mechanism drives the arm (5b1, 5b2) to move and travel along the working curve to the arc inflection point 21 of the arm (5b1, 5b2), and the piston (6b1, 6b2) is compressed along the cylinder.
  • the piston (6a1, 6a2) inhales to the bottom dead center in a temporary static state.
  • the machine completes the eighth compression and suction of the piston.
  • the machine completes the round-trip compression and suction work for one revolution. Go to the next cycle of work.
  • an arm piston-coupled air compressor includes a cylindrical cylinder 1, a transmission shaft 2, and a compression device (not shown), wherein the cylindrical cylinder 1
  • the inner portion has a cavity (not shown), the drive shaft 2 is rotatably disposed in the cavity, and the drive shaft 2 is at the axial position of the cylindrical cylinder 1.
  • the cylindrical cylinder 1 serves as the A skeleton of the air compressor is not particularly limited in its specific shape as long as the drive shaft 2 can be mounted and the compression device can be disposed.
  • the compression device comprises four sets of cylinders 7 and pistons (6a1, 6a2, 6b1, 6b2) arranged in the cylinder 7, the cylinders 7 being of the same specification, and the cylinders 7 being arranged in the cylinders of the cylindrical cylinders 1 in the radial direction thereof.
  • the four cylinders 7 are evenly arranged along the circumferential direction of the cylinder wall.
  • the piston 6a1 and the piston 6a2 are disposed opposite to each other in the vertical direction
  • the piston 6b1 and the piston 6b2 are disposed in the horizontal direction.
  • the tail portion can be retracted and retracted in the cavity, and the piston (6a1, 6a2) and the piston (6b1, 6b2) respectively perform a cycle of suction or compression.
  • the bottom of the cylinder 7 is provided with a one-way intake valve 10 and a one-way air outlet.
  • the valve 8 cooperates with the cylinder to complete the suction or pressure operation.
  • the telescopic movement of the pistons (6a1, 6a2) and the pistons (6b1, 6b2) is realized by the linkage of the four arms (5a1, 5a2, 5b1, 5b2) by the cam mechanism.
  • the cam mechanism is fixed on the transmission shaft 2 and rotates together with the transmission shaft 2.
  • the central position of the cam mechanism is provided with a flat cam 14 , and the two ends of the flat cam 14 are symmetrically provided with a driving portion, and the driving shaft 2 drives the cam mechanism to rotate when driven.
  • the portion moves around the drive shaft 2 to form a rotational trajectory.
  • the cam mechanism may be designed such that the cam mechanism includes a cam holder 3 and two cam runners (13a, 13b), and two cam runners (13a, 13b) are mounted at both ends of the cam bracket 3 to form
  • the cam mechanism 3 is fixedly mounted on the drive shaft 2 in the driving portion of the cam mechanism.
  • the cam bracket 3 is an I-shaped bracket, and the inner space of the I-shaped bracket forms the inner side of the arm (5a1, 5a2, 5b1, 5b2).
  • the yielding area of the wall (preventing interference) the cam runners (13a, 13b) are mounted on both ends of the I-shaped bracket through the cam runner shaft 4, and the cam runners (13a, 13b) are located inside the both ends of the I-shaped bracket.
  • the first and the rear ends of the four arms (5a1, 5a2, 5b1, 5b2) are hinged to each other to form a linkage frame, and the end and the end of the four arms (5a1, 5a2, 5b1, 5b2) are respectively connected with the corresponding pistons (6a1). , 6a2, 6b1, 6b2), the tail is hinged.
  • the head end of the arm, the end of the arm and the tail of the piston can be hinged by a boom connecting shaft 12. In this way, while two symmetrical pistons are inhaling, the other two symmetrical pistons complete the work of compressing and outputting high-pressure air. Each time the cam mechanism rotates, each piston works twice, and the inhalation and pressure transmission are completed with the corresponding cylinders. The task of the air.
  • the piston's synchronous reciprocating work improves the balance of motion and reliability of the machine, reduces vibration noise and improves service life.
  • the arm rods (5a1, 5a2, 5b1, 5b2) are arranged in equal length, and the inner side wall is provided with a working curve (actually a working surface) matching the movement trajectory of the driving portion, in the rotation process of the cam mechanism
  • the cam runners (13a, 13b) of the cam mechanism are in contact with the inner side walls of the working curved portion of the arms (5a1, 5a2, 5b1, 5b2), thereby causing the shape of the linkage frame to be changed due to the four arms (5a1) , the end of the 5a2, 5b1, 5b2) is hinged to the tail of the corresponding piston (6a1, 6a2, 6b1, 6b2), that is, the end of the four arms (5a1, 5a2, 5b1, 5b2) can only be connected
  • the linear motion is performed along the axial direction of the corresponding cylinder 7, so that when the shape of the linkage frame is changed, the end links of the four arms (5a1, 5a2, 5b1, 5b2) are connected.
  • the linkage frame has a horizontal limit position and a vertical limit position in the linkage, and the horizontal limit position of the linkage frame corresponds to the top dead center (compressed air) of the piston (6b1, 6b2) and the stop of the piston (6a1, 6a2). Point (intake), the vertical limit position of the linkage frame corresponds to the top dead center (compressed air) of the piston (6a1, 6a2) and the bottom dead center (suction) of the piston (6b1, 6b2).
  • the working curve of each arm includes an open-cut incision arc and a driving arc 5bb, and one end 5ac of the driving arc 5bb is smoothly connected with the incision arc, and the other end of the driving arc 5bb is driven.
  • a pressing surface 5ab is formed on the inner side wall of each arm to cooperate with the flat cam 14.
  • the flat cam 14 has two symmetrical working faces (the two end faces of the working surface are 14a and 14b), two The working faces of the segments are symmetrically arranged to be respectively press-fitted with the pressing faces 5ab of the oppositely disposed arms.
  • the arm 5a1 is opened by the pressing of the flat cam 14 and the pressing surface 5ab on the arm 5a1, and the pressing of the pressing surface 5ab on the flat cam 14 and the arm 5a1 causes the arm 5a1 to be pressed.
  • the cam runner 13a starts to slide into the driving arc 5bb and comes into contact with the driving arc 5bb to press the boom 5a1 to continue moving, when the cam runner 13a slides out of the cutting point 5aa of the driving arc 5bb.
  • the linkage frame reaches the limit position.
  • the reason why the flat cam 14 and the cam runner 13a are designed to work together at the same time is to make the cam mechanism drive the arm rod more smoothly, effectively reducing friction and noise, and improving work fluency.
  • the driving portion may be designed as a rolling body having a circular surface integrally formed with both ends of the cam holder 3.
  • the working surface of the rolling body and the arm (5a1, 5a2, 5b1, 5b2) is Sliding friction, for the smooth running of the machine
  • the drive portion is preferably designed in the form of a cam runner (13a, 13b).
  • the bottom end portion of the cylinder 7 is exposed outside the cylinder wall of the cylindrical cylinder 1, and the intermediate portion of the cylinder 7 is provided with the auxiliary intake port 11, which improves the intake efficiency.
  • the one-way air outlet valve 8 is connected to the air guiding tube 9, which is used to connect with a device that requires compressed air, for example, to input high-pressure air to the pressure vessel or to directly supply a high-pressure air source to the pneumatic tool.
  • the air compressor can be applied to an engine in which a compression cylinder is separated from a work cylinder, and can be used as an integral part of the engine to provide high-pressure air for the ignition cylinder of the engine, as the patent number that the applicant has applied for is ZL201320009730.9 turbine rotor energy-saving engine.
  • a plurality of sets of compression devices may be arranged along the axial direction of the cylindrical cylinder 1, and the plurality of compression devices are jointly driven by the transmission shaft 2 to improve the efficiency of the compressed air.
  • the piston (6a1, 6a2) is sucking air at the bottom dead center
  • the piston (6b1, 6b2) is at the top dead center
  • the cam runner 13a At the cut-out point 5aa of the arm 5b2, the cam runner 13b is at the cut-out point 5aa of the arm 5b1.
  • the cam mechanism continues to rotate, and the working surface (14a to 14b) of the flat cam 14 contacts the pressing surface 5ab of the arm (5a1, 5a2) and presses the arm (5a1, 5a2) to move, thereby driving the four arms to interlock.
  • the arm (5a1, 5a2) drives the piston (6a1, 6a2) to start the upward dead motion compression in the state of being sucked up, and the piston (6b1, 6b2) moves to the downward stop point under the linkage of the arm.
  • the flat cam 14 and the pressing surface 5ab contact and rotate to the apex of the flat cam 14 (see Fig. 20)
  • the flat cam 14 stops the pressing action on the pressing surface 5ab of the arm (5a1, 5a2), at this time, the cam rotates.
  • the wheel (13a, 13b) is turned to the driving arc 5bb of the arm (5a1, 5a2) and contacts the pressing, and the driving work is completed, and the piston (6a1, 6a2) is ventilated.
  • the cylinder continues to compress, and the pistons (6b1, 6b2) also move synchronously along the cylinder to the bottom dead center and inhale through the one-way air inlet 10.
  • the cam mechanism continues to rotate, and the cam runners (13a, 13b) drive the arm rods (5a1, 5a2) to interlock the linkage frame, thereby pushing the pistons (6a1, 6a2) to continue the upward dead center compression along the cylinders, as the cam runners (13a, 13b)
  • the cam mechanism is rotated exactly 90 degrees, the piston (6a1, 6a2) is compressed to reach the top dead center, and the compressed air is passed through the one-way air outlet valve 8.
  • the cam mechanism drives the arm (5a1, 5a2) to move and travel along the working curve to the cutting point 5aa of the arm (5a1, 5a2), the piston (6a1) , 6a2) is compressed to the top dead center along the cylinder, the piston (6b1, 6b2) runs to the bottom dead center and is temporarily stationary, and the machine completes the sixth compression and suction of the piston at this time.
  • the cam mechanism drives the arm (5b1, 5b2) to move and travel along the working curve to the cut-out point 5aa of the arm (5b1, 5b2), the piston (6b1, 6b2)
  • the cylinder is compressed to the top dead center, and the piston (6a1, 6a2) inhales to the bottom dead center in a temporary state of rest.
  • the machine completes the eighth compression and suction of the piston.
  • the machine completes one revolution. Round-trip compression and suction work into the next cycle.

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Abstract

一种臂杆活塞联动式空气压缩机，包括：柱形缸体（1）、传动轴（2）及设置在柱形缸体（1）上的压缩装置，压缩装置包括：四套气缸（7）及设在气缸（7）内的活塞（6a1，6a2，6b1，6b2），气缸（7）沿柱形缸体（1）的径向方向设置在柱形缸体（1）的缸体壁上，气缸（7）的底部设有单向进气阀（10）和单向出气阀（8）；凸轮机构，其固定在传动轴（2）上与传动轴（2）一起旋转，凸轮机构具有对称设置的驱动部，驱动部围绕传动轴（2）做圆周运动从而形成旋转轨迹；四根联动的臂杆（5a1，5a2，5b1，5b2），臂杆（5a1，5a2，5b1，5b2）的首尾端相互铰接进而形成联动框架，且四根臂杆（5a1，5a2，5b1，5b2）的首尾连接端分别与对应的活塞（6a1，6a2，6b1，6b2）的尾部铰接，每根臂杆（5a1，5a2，5b1，5b2）的内侧壁上均设有与旋转轨迹相配合的工作曲线；其中凸轮机构驱动四根臂杆（5a1，5a2，5b1，5b2）进行联动进而带动活塞（6a1，6a2，6b1，6b2）动作。该压缩机结构简单可靠，制造成本低廉，效率高。

Description

臂杆活塞联动式空气压缩机 技术领域
本发明涉及空气压缩机领域，特别涉及一种臂杆活塞联动式空气压缩机。
背景技术
目前，应用较为广泛的空气压缩机主要有曲轴曲柄活塞式或双螺杆挤压式空气压缩机，传统的曲轴曲柄活塞式空气压缩机是通过曲轴输出动力，通过曲柄带动圆柱形气缸活塞装置中的活塞作直线往返运动，活塞配合气缸完成吸入空气，然后压缩并输送高压空气。对于双螺杆挤压式空气压缩机，其通过双螺杆高速转动和两螺杆的螺纹相互配合挤压来输出高压空气。
但是，对于上述曲轴曲柄活塞式空气压缩机，曲轴每转一周，每个气缸工作一次，工作效率较低，而且该空气压缩机的曲轴、曲柄件机加工难度大，制作成本高，机器体积庞大，重量较大，这些缺点使传统的曲轴曲柄活塞式空气压缩机的生存发展受到极大的限制。而对于双螺杆挤压式空气压缩机，其必须依靠强大动力驱动，使用成本提高，且双螺杆的加工技术复杂，各种技术要求极高，另外，相对于传统空气压缩机，其效率提高不足10％。
公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明的目的在于提供一种臂杆活塞联动式空气压缩机，其通过利用 凸轮的技术特性，使之与臂杆配合来驱动活塞工作，能够给压力容器输入高压空气或直接向气动机具提供高压气源，结构简单可靠，制造成本低廉，体积重量小，效率高。
为实现上述目的，本发明提供了一种臂杆活塞联动式空气压缩机，包括：柱形缸体及传动轴，柱形缸体内部具有容腔，传动轴可旋转的设置在容腔内，传动轴处于柱形缸体的轴线位置上；压缩装置，其设置在柱形缸体上，压缩装置包括：四套气缸及设在气缸内的活塞，气缸沿柱形缸体的径向方向设置在柱形缸体的缸体壁上且沿缸体壁的周向排列，气缸的底部设有单向进气阀和单向出气阀，活塞的尾部能够在容腔内来回伸缩；凸轮机构，其固定在传动轴上与传动轴一起旋转，凸轮机构具有对称设置的驱动部，驱动部围绕传动轴做圆周运动从而形成旋转轨迹；四根联动的臂杆，臂杆的首尾端相互铰接进而形成联动框架，且四根臂杆的首尾连接端分别与对应的活塞的尾部铰接，每根臂杆的内侧壁上均设有与旋转轨迹相配合的工作曲线；其中凸轮机构驱动四根臂杆进行联动进而带动活塞沿气缸的轴线做伸缩动作，联动框架在联动中具有水平极限位置和竖直极限位置。
优选地，四根臂杆等长，气缸沿缸体壁的周向均匀排列。
优选地，凸轮机构包括凸轮支架和凸轮转轮，凸轮支架固定在传动轴上，凸轮转轮设置在凸轮支架的两端进而形成驱动部。
优选地，每根臂杆的工作曲线包括：
切入弧线，联动框架处于水平极限位置时切入弧线与旋转轨迹吻合；切出弧线，联动框架处于竖直极限位置时该臂杆的切出弧线与旋转轨迹吻合；驱动弧线，其同时与切入弧线和切出弧线平滑连接，凸轮转轮与驱动弧线接触时驱动臂杆进行联动。
优选地，凸轮支架呈工字形，该工字形凸轮支架的两侧空间形成臂杆内侧壁的让位区域；凸轮转轮通过凸轮转轮轴安装在工字形凸轮支架的两 端的中间位置；臂杆的首尾端通过臂杆连接轴铰接。
优选地，每个臂杆连接轴的两端均安装有压送滚轮；凸轮支架的工形壁的端面上均设有与压送滚轮配合运动的辅助凸轮，凸轮支架旋转时辅助凸轮能够挤压对应的压送滚轮。
优选地，臂杆连接轴上套装有滚轮。
优选地，凸轮机构的中心位置设有扁形凸轮，驱动部对称设置在扁形凸轮的两端，每根臂杆的内侧壁上还均设有与扁形凸轮配合的挤压面，凸轮机构通过驱动部与工作曲线配合、扁形凸轮与挤压面的配合来驱动四根臂杆进行联动。
优选地，扁形凸轮上具有两段对称设置的工作面，凸轮机构旋转时，扁形凸轮上的两段工作面分别与相对臂杆上的挤压面同时接触进而驱动该相对臂杆张开；每根臂杆的工作曲线包括：切入弧线，其为敞开形；以及驱动弧线，其一端与切入弧线平滑连接，驱动弧线的另一端与臂杆的内侧壁相交于切出点；其中凸轮机构旋转时，凸轮转轮经切入弧线滑入后与驱动弧线接触进而驱动臂杆联动。
优选地，气缸的底端部分裸露在柱形缸体的缸体壁外，气缸的中间部位设有辅助进气口。
优选地，单向出气阀与导气管接通。
优选地，沿柱形缸体的轴向方向布置多套压缩装置，该多套压缩装置共同由传动轴驱动。
与现有技术相比，本发明具有如下有益效果：利用凸轮驱动的技术特性，使之与臂杆及压送滚轮巧妙配合来驱动活塞工作，结构简单可靠，关键部件制造成本低廉，体积小，重量轻，比一般空气压缩机的效率高。
附图说明
图1是根据本发明的臂杆活塞联动式空气压缩机的整体结构示意图；
图2-1是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构与联动框架的主视示意图；
图2-2是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构与联动框架的侧视示意图；
图2-3是根据本发明的臂杆活塞联动式空气压缩机中一种凸轮机构的结构示意图；
图3-1是根据本发明的臂杆活塞联动式空气压缩机中臂杆的结构示意图；
图3-2是根据本发明的臂杆活塞联动式空气压缩机中两根臂杆的连接示意图；
图3-3是根据本发明的臂杆活塞联动式空气压缩机中四根臂杆的连接示意图；
图4-1是根据本发明的臂杆活塞联动式空气压缩机中联动框架处于水平极限位置的示意图；
图4-2是根据本发明的臂杆活塞联动式空气压缩机中臂杆的切入弧线的画法示意图；
图4-3是根据本发明的臂杆活塞联动式空气压缩机中联动框架处于竖直极限位置的示意图；
图4-4是根据本发明的臂杆活塞联动式空气压缩机中臂杆的切出弧线的画法示意图；
图4-5是根据本发明的臂杆活塞联动式空气压缩机中联动框架处于正 方形的示意图；
图4-6是根据本发明的臂杆活塞联动式空气压缩机中臂杆的驱动弧线的定取示意图；
图4-7是根据本发明的臂杆活塞联动式空气压缩机中臂杆的工作曲线的几何画法示意图；
图5-1是根据本发明的臂杆活塞联动式空气压缩机启动前的工作状态示意图；
图5-2是图5-1所示的工作状态中凸轮机构与臂杆的关系示意图；
图5-3是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构开始驱动臂杆联动时的状态示意图；
图5-4是图5-3所示的工作状态中凸轮机构与臂杆的关系示意图；
图6-1是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构转动45度时的状态示意图；
图6-2是图6-1所示的工作状态中凸轮机构与臂杆的关系示意图；
图6-3是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构转动90度时的状态示意图；
图6-4是图6-3所示的工作状态中凸轮机构与臂杆的关系示意图；
图7-1是根据本发明的臂杆活塞联动式空气压缩机中联动框架从竖直极限位置向水平极限位置转换状态的示意图；
图7-2是图7-1所示的工作状态中凸轮机构与臂杆的关系示意图；
图7-3是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构转动180度时的状态示意图；
图7-4是图7-3所示的工作状态中凸轮机构与臂杆的关系示意图；
图8-1是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构转动270度时的状态示意图；
图8-2是图8-1所示的工作状态中凸轮机构与臂杆的关系示意图；
图8-3是根据本发明的臂杆活塞联动式空气压缩机中凸轮机构转动360度时的状态示意图；
图8-4是图8-3所示的工作状态中凸轮机构与臂杆的关系示意图；
图9是根据本发明的臂杆活塞联动式空气压缩机中另一种凸轮机构和臂杆的结构示意图；
图10是根据本发明另一实施例的臂杆活塞联动式空气压缩机的整体结构示意图；
图11是根据本发明另一实施例的臂杆活塞联动式空气压缩机中凸轮机构与联动框架的主视示意图；
图12是根据本发明另一实施例的臂杆活塞联动式空气压缩机中凸轮机构与联动框架的侧视示意图；
图13是根据本发明另一实施例的臂杆活塞联动式空气压缩机中一种凸轮机构的结构示意图；
图14是根据本发明另一实施例的臂杆活塞联动式空气压缩机中臂杆的结构示意图；
图15是根据本发明另一实施例的臂杆活塞联动式空气压缩机中臂杆与凸轮机构的一种配合状态示意图；
图16是根据本发明另一实施例的臂杆活塞联动式空气压缩机中臂杆与凸轮机构的配合状态示意图；
图17是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动 框架处于水平极限位置的示意图；
图18是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动框架处于水平极限位置时臂杆与凸轮机构的配合示意图；
图19是根据本发明另一实施例的臂杆活塞联动式空气压缩机中竖直方向的气缸开始压缩时的示意图；
图20是根据本发明另一实施例的臂杆活塞联动式空气压缩机中竖直方向的气缸开始压缩时臂杆与凸轮机构的配合示意图；
图21是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动框架处于正方形的示意图；
图22是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动框架处于正方形时臂杆与凸轮机构的配合示意图；
图23是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动框架处于竖直极限位置的示意图；
图24是根据本发明另一实施例的臂杆活塞联动式空气压缩机中联动框架处于竖直极限位置时臂杆与凸轮机构的配合示意图；
图25是根据本发明另一实施例的臂杆活塞联动式空气压缩机的第一种工作状态示意图；
图26是根据本发明另一实施例的臂杆活塞联动式空气压缩机的第二种工作状态示意图；
图27是根据本发明另一实施例的臂杆活塞联动式空气压缩机的第三种工作状态示意图。
具体实施方式
下面结合附图，对本发明的具体实施方式进行详细描述，但应当理解 本发明的保护范围并不受具体实施方式的限制。
除非另有其它明确表示，否则在整个说明书和权利要求书中，术语“包括”或其变换如“包含”或“包括有”等等将被理解为包括所陈述的元件或组成部分，而并未排除其它元件或其它组成部分。
实施例1
如图1所示，根据本发明具体实施方式的一种臂杆活塞联动式空气压缩机，包括柱形缸体1、传动轴2及压缩装置(图中未标记)，其中柱形缸体1内部具有容腔(图中未标记)，传动轴2可旋转的设置在容腔内，传动轴2处于柱形缸体1的轴线位置上，本实施例中，柱形缸体1作为该空气压缩机的一种骨架，其具体形状没有特殊的限制，只要能够安装传动轴2和布置压缩装置即可。
在本实施例中，以一种优选的压缩装置的布置进行详细说明，具体如下：
该压缩装置包括四套气缸7及设在气缸7内的活塞(6a1，6a2，6b1，6b2)，气缸7为相同规格设置，气缸7沿柱形缸体1的径向方向设置在其缸体壁上，且四个气缸7沿缸体壁的周向均匀排列，具体地，活塞6a1和活塞6a2在竖直方向相对设置，活塞6b1和活塞6b2在水平方向相对设置，气缸工作时，活塞的尾部能够在容腔内来回伸缩，活塞(6a1，6a2)与活塞(6b1，6b2)分别进行吸气或压缩的循环工作，另外，气缸7的底部设有单向进气阀10和单向出气阀8，配合气缸完成吸气或压工作。
如图2-1至图2-3所示，活塞(6a1，6a2)与活塞(6b1，6b2)的伸缩动作是通过凸轮机构驱动四根臂杆(5a1，5a2，5b1，5b2)联动来实现的，具体的，凸轮机构固定在传动轴2上与传动轴2一起旋转，凸轮机构具有对称设置的驱动部，驱动部围绕传动轴2做圆周运动从而形成旋转轨迹17(参见图4-1)，在本实施例中，凸轮机构可以这样设计，即驱动部为两个凸轮转轮(13a，13b)，两个凸轮转轮(13a，13b)安装在凸轮支 架3的两端，凸轮支架3固定安装在传动轴2上，其中凸轮支架3呈工字形，该工字形凸轮支架的两侧空间形成臂杆(5a1，5a2，5b1，5b2)内侧壁的让位区域(防止干涉)，凸轮转轮(13a，13b)通过凸轮转轮轴4安装在工字形凸轮支架的两端，凸轮转轮(13a，13b)处于工字形凸轮支架的中间位置，凸轮转轮(13a，13b)沿旋转轨迹17滚动。而且四根臂杆(5a1，5a2，5b1，5b2)的首尾端相互铰接进而形成联动框架，且四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端分别与对应的活塞(6a1，6a2，6b1，6b2)的尾部铰接，为获得更高的灵敏度，臂杆的首尾端之间、臂杆的首尾连接端与活塞的尾部可以通过一根臂杆连接轴12铰接，臂杆连接轴12还组装有滚轮100(参见图6-2)。这样，在两个对称的活塞吸气的同时，另两个对称的活塞则完成压缩输出高压空气的工作，凸轮机构每转一周，每个活塞工作两次，配合对应气缸完成吸气及压送空气的任务。通过这种水平和竖直对置的气缸设置，活塞同步的往返工作，提高了机器运动平衡性、可靠性，减少震动噪音，提高使用寿命。
如图3-1至图3-3所示，臂杆(5a1，5a2，5b1，5b2)等长设置，其内侧壁上设有与驱动部的运动轨迹相配合的工作曲面，在凸轮机构3旋转过程中，凸轮机构的凸轮转轮(13a，13b)与臂杆(5a1，5a2，5b1，5b2)的工作曲面部分的内侧壁接触，进而使得联动框架的形状发生改变，由于四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端分别与对应的活塞(6a1，6a2，6b1，6b2)的尾部铰接，也即四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端只能沿着对应气缸7的轴向做直线运动，所以，当联动框架的形状发生改变时，四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端即可带动活塞(6a1，6a2，6b1，6b2)做伸缩动作。在工作中，联动框架在联动中具有水平极限位置和竖直极限位置，联动框架的水平极限位置对应活塞(6b1，6b2)的上止点(压缩空气)和活塞(6a1，6a2)的下止点(吸气)，联动框架的竖直极限位置对应活塞(6a1，6a2)的上止点(压缩空气)和 活塞(6b1，6b2)的下止点(吸气)。
另外，在凸轮机构驱动四根臂杆进行联动时，还可以如下设计，即在每个臂杆连接轴12的两端均安装有压送滚轮15，在凸轮支架3的工形壁的端面上均设有与压送滚轮15配合运动的辅助凸轮16，凸轮支架3旋转时辅助凸轮16能够挤压对应的压送滚轮15(参见图7-2)，进而使得受挤压的压送滚轮15所在的臂杆容易张开。总的来说，通过凸轮转轮(13a，13b)与臂杆上的工作曲面挤压和辅助凸轮16与压送滚轮15的挤压来共同驱动四根臂杆联动，有效减少了摩擦与噪音，提高了工作流畅性。
当然，上述方案中，驱动部可以设计为与凸轮支架3的两端一体成型的具有圆形面的滚动体(参见图9)，此时，滚动体与臂杆(5a1，5a2，5b1，5b2)的工作曲面为滑动摩擦，为了本机器的平稳运行，驱动部最好设计为凸轮转轮(13a，13b)的形式。
以下为臂杆(5a1，5a2，5b1，5b2)的内侧壁上的工作曲线(实际为工作曲面)的具体设计，工作曲线包括设在臂杆中间的驱动弧线18、臂杆的切入弧线19和臂杆的切出弧线20(参见图3-3)，需要说明的是，设计工作曲线是为了凸轮机构在驱动臂杆运动时让凸轮滚轮与臂杆保持接触的运动轨迹，工作曲线的优化设计能使凸轮滚轮和臂杆的运动配合更流畅，减少摩擦与碰撞，有利于提高机器的运转速度和稳定性，而不是实现臂杆联动的必要条件，比如，如图9所示，臂杆内侧壁上的工作曲线为一段圆弧及和圆弧连接的直线，这种情况下，凸轮3a在旋转的过程中，凸轮3a间歇性的驱动臂杆(5a，5b)联动，但是，这种驱动方式，凸轮3a会撞击臂杆(5a，5b)，压缩机工作过程中噪音比较大，而且容易造成臂杆(5a，5b)折断。所以，本实施例中通过改变臂杆的工作曲线，同时设计一种带有凸轮转轮(13a，13b)的凸轮机构，在凸轮机构驱动臂杆联动时，臂杆的内侧壁上的工作曲面在运动过程中保证与凸轮转轮(13a，13b)接触，根据几何学原理即可设计臂杆的内侧壁上的工作曲线，其中臂杆的 切入弧线19的主要作用是在凸轮机构驱动臂杆联动开始时保证凸轮转轮(13a，13b)与臂杆的内侧壁接触，利于运动稳定；臂杆中间的驱动弧线18的主要作用是在凸轮滚轮接触驱动弧线18时以圆与圆弧相切的方式逐渐接受凸轮滚轮的作用力使臂杆运动，同时避免激烈摩擦产生的震动与噪音；臂杆的切出弧线19的主要作用是臂杆接受凸轮滚轮的滑动压迫力驱动一组活塞向上止点运动的同时也拉动另一组活塞向下止点运动。
如图4-7所示，在本实施例中，臂杆内侧壁上的工作曲线通过如下方式获得，以其中一根臂杆为例进行说明：
设A和B分别是臂杆的两端的轴心，其中A为前止点，B为后止点，O1为旋转轨迹17的圆心，O1A⊥BB1。
1.作线段AB的垂直平分线与线段AB相交与C点；
2.在线段AB的垂直平分线上取O2点，使得O2C＝AC＝BC；
3.以O2为圆心，OE为半径画圆弧L1，圆弧L1与线段AB的垂直平分线相交于D点；
4.在旋转轨迹17的圆弧上取点G，使得DF＝DG；
5.连接OG与线段AB的垂直平分线相交于O3点；
6.以O3为圆心画圆弧L2，圆弧L2经过点F和点G，弧FG即为驱动弧线18的一半，弧GE即为臂杆的切出弧线20。
7.同理，当A为后止点，B为前止点时，画出驱动弧线18的另一半及臂杆的切入弧线19。
如上文所述，设计工作曲线是为了凸轮机构在驱动臂杆运动时让凸轮滚轮和臂杆的运动配合更流畅，减少摩擦与碰撞，有利于提高机器的运转速度和稳定性，而不是实现臂杆联动的必要条件，所以，本实施例还提供一种获得工作曲线的方式，如下：
如图4-1至图4-6所示，当四根臂杆在水平方向处于极限位置时，凸轮转轮(13a，13b)的旋转轨迹17的一部分为臂杆的切入弧线19，当四 根臂杆在竖直方向处于极限位置时，凸轮转轮(13a，13b)的旋转轨迹17的一部分为臂杆的切出弧线20，然后在四根臂杆处于正方形时绘制一条经过旋转轨迹17的顶点的曲线，该曲线同时与切入弧线19和切出弧线20平滑连接即形成本实施例中的另一种驱动弧线18，但是，此时的驱动弧线18的最小半径必须大于凸轮转轮(13a，13b)本身的半径(防止干涉)。通过此种方式绘制的工作曲线同样可以保证凸轮滚轮和臂杆的流畅配合。
另外，在本实施例中，气缸7的底端部分裸露在柱形缸体1的缸体壁外，气缸7的中间部位设有辅助进气口11，提高了进气效率。单向出气阀8与导气管9接通，导气管9用来与需要压缩空气的装置接通，比如，给压力容器输入高压空气或直接向气动机具提供高压气源。特别的，该空气压缩机可适用于压缩缸与做功缸分开的发动机，其能做为该种发动机的组成部分，为发动机的点火做功缸提供高压空气，如申请人曾经申请过的专利号为ZL201320009730.9的涡轮转子节能发动机。
需要说明的是，本实施例提供的空气压缩机，可以沿柱形缸体1的轴向方向布置多套压缩装置，该多套压缩装置共同由传动轴2驱动，提高压缩空气的效率。
以下为本实施例提供的空气压缩机的具体工作过程的详细说明：
如图5-1至图5-4所示，在静止状态下(联动框架处于水平极限位置)，活塞(6a1，6a2)处于下止点吸空气，活塞(6b1，6b2)处于上止点，凸轮转轮13a处于臂杆5b2的弧线拐点21，凸轮转轮13b处于臂杆5b1的弧线拐点21上。凸轮机构继续转动，凸轮转轮(13a，13b)沿臂杆(5a1，5a2)的切入弧线19转动至臂杆(5a1，5a2)的驱动弧线18(参见图5-4)，并通过臂杆(5a1，5a2)的驱动弧线18作用于臂杆(5a1，5a2)，辅助凸轮16作用力于压送滚轮15，压送滚轮15同时推动活塞(6a1，6a2)沿气缸压缩，活塞(6b1，6b2)也由于臂杆联动作用沿气缸向下止点同步运动，并通过单向进气口10向气缸吸气。
如图6-1至6-4所示，当凸轮机构转动了45度，四根臂杆在凸轮机构驱动下联合转动呈由臂杆连接轴12为连点的正方形，此时活塞(6a1，6a2)沿气缸压缩了行程一半，活塞(6b1，6b2)沿气缸向下止点继续运动吸气至行程一半。凸轮机构继续转动，凸轮转轮(13a，13b)驱动臂杆(5a1，5a2)使联动框架联动，进而推动活塞(6a1，6a2)沿气缸继续向上止点压缩，凸轮转轮(13a，13b)沿臂杆(5a1，5a2)的驱动弧线18向臂杆(5a1，5a2)的切出弧线20转动(参见图6-2)，当凸轮转轮(13a，13b)转至臂杆(5a1，5a2)的弧线拐点21时(参见图6-3)，凸轮机构正好转动了90度，活塞(6a1，6a2)压缩到达上止点，压缩空气通过单向出气阀8压至导气管9，活塞(6a1，6a2)的压力消失，活塞(6b1，6b2)同时运行到下止点，铺助进气口11也开始进气，完成进气工作，此过程完成了两个活塞行程气量的压缩及吸气。
如图7-1至图7-4所示，凸轮机构继续转动，凸轮机构带动凸轮转轮(13a，13b)滑开臂杆(5a1，5a2)的弧线拐点21，并沿臂杆(5b1，5b2)的切入弧线19向臂杆(5b1，5b2)的驱动弧线18转动(参见图7-2)，在转动过程中，凸轮转轮(13a，13b)对臂杆(5b1，5b2)没有作用力，所有活塞和臂杆静止不变，当凸轮转轮(13a，13b)与臂杆(5b1，5b2)的驱动弧线18接触并产生作用力时，辅助凸轮16也同时向压送转轮15产生作用力，这时活塞(6a1，6a2)沿气缸向下止点运动吸气，同时活塞(6b1，6b2)向上止点压缩空气。当凸轮转轮(13a，13b)驱动臂杆(5b1，5b2)运动转至180度时，凸轮转轮(13a，13b)转到臂杆(5b1，5b2)的弧线拐点21，活塞(6b1，6b2)到达上止点，气缸气体被压进了导气管9，活塞(6b1，6b2)受到的压力消失呈暂时静止状态，同时活塞(6a1，6a2)同步到达下止点且完成了吸气，此时，机器完成了活塞4次压缩和吸气。
如图8-1至图8-4所示，凸轮机构继续转动至270度的过程中，凸轮 机构驱动臂杆(5a1，5a2)运动并沿工作曲线运行至臂杆(5a1，5a2)的弧线拐点21，活塞(6a1，6a2)沿气缸压缩到了上止点，活塞(6b1，6b2)运行到了下止点呈暂时静止状态，机器此时完成了活塞第6次压缩和吸气。传动轴2继续转动到360度时，凸轮机构驱动臂杆(5b1，5b2)运动并沿工作曲线运行至臂杆(5b1，5b2)的弧线拐点21，活塞(6b1，6b2)沿气缸压缩到了上止点，活塞(6a1，6a2)吸气到了下止点呈暂时静止状态，此时，机器完成了活塞第8次压缩和吸气，至此，机器完成了转动一周的往返压缩和吸气工作进入下一循环工作。
实施例2
如图10所示，根据本发明具体实施方式的一种臂杆活塞联动式空气压缩机，包括柱形缸体1、传动轴2及压缩装置(图中未标记)，其中柱形缸体1的内部具有容腔(图中未标记)，传动轴2可旋转的设置在容腔内，传动轴2处于柱形缸体1的轴线位置上，本实施例中，柱形缸体1作为该空气压缩机的一种骨架，其具体形状没有特殊的限制，只要能够安装传动轴2和布置压缩装置即可。
在本实施例中，以一种优选的压缩装置的布置进行详细说明，具体如下：
该压缩装置包括四套气缸7及设在气缸7内的活塞(6a1，6a2，6b1，6b2)，气缸7为相同规格设置，气缸7沿柱形缸体1的径向方向设置在其缸体壁上，且四个气缸7沿缸体壁的周向均匀排列，具体地，活塞6a1和活塞6a2在竖直方向相对设置，活塞6b1和活塞6b2在水平方向相对设置，气缸工作时，活塞的尾部能够在容腔内来回伸缩，活塞(6a1，6a2)与活塞(6b1，6b2)分别进行吸气或压缩的循环工作，另外，气缸7的底部设有单向进气阀10和单向出气阀8，配合气缸完成吸气或压气工作。
如图11至图14所示，活塞(6a1，6a2)与活塞(6b1，6b2)的伸缩动作是通过凸轮机构驱动四根臂杆(5a1，5a2，5b1，5b2)联动来实现的， 具体的，凸轮机构固定在传动轴2上与传动轴2一起旋转，凸轮机构的中心位置设有扁形凸轮14，扁形凸轮14的两端对称设置有驱动部，传动轴2驱动凸轮机构旋转时驱动部围绕传动轴2做圆周运动从而形成旋转轨迹。在本实施例中，凸轮机构可以这样设计，即凸轮机构包括凸轮支架3和两个凸轮转轮(13a，13b)，两个凸轮转轮(13a，13b)安装在凸轮支架3的两端形成凸轮机构的驱动部，凸轮支架3固定安装在传动轴2上，本实施例中，凸轮支架3为工字形支架，该工字形支架的内侧空间形成臂杆(5a1，5a2，5b1，5b2)内侧壁的让位区域(防止干涉)，凸轮转轮(13a，13b)通过凸轮转轮轴4安装在工字形支架的两端，凸轮转轮(13a，13b)处于工字形支架的两端的内侧。另外，四根臂杆(5a1，5a2，5b1，5b2)的首尾端相互铰接进而形成联动框架，且四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端分别与对应的活塞(6a1，6a2，6b1，6b2)的尾部铰接，为获得更高的灵敏度，臂杆的首尾端之间、臂杆的首尾连接端与活塞的尾部可以通过一根臂杆连接轴12铰接。这样，在两个对称的活塞吸气的同时，另两个对称的活塞则完成压缩输出高压空气的工作，凸轮机构每转一周，每个活塞工作两次，配合对应气缸完成吸气及压送空气的任务。
通过这种水平和竖直对称的气缸设置，活塞同步的往返工作，提高了机器运动平衡性、可靠性，减少震动噪音，提高使用寿命。
上述方案中，臂杆(5a1，5a2，5b1，5b2)等长设置，其内侧壁上设有与驱动部的运动轨迹相配合的工作曲线(实际上是工作曲面)，在凸轮机构的旋转过程中，凸轮机构的凸轮转轮(13a，13b)与臂杆(5a1，5a2，5b1，5b2)的工作曲面部分的内侧壁接触，进而使得联动框架的形状发生改变，由于四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端分别与对应的活塞(6a1，6a2，6b1，6b2)的尾部铰接，也即四根臂杆(5a1，5a2，5b1，5b2)的首尾连接端只能沿着对应气缸7的轴向做直线运动，所以，当联动框架的形状发生改变时，四根臂杆(5a1，5a2，5b1，5b2)的首尾连接 端即可带动活塞(6a1，6a2，6b1，6b2)做伸缩动作。在工作中，联动框架在联动中具有水平极限位置和竖直极限位置，联动框架的水平极限位置对应活塞(6b1，6b2)的上止点(压缩空气)和活塞(6a1，6a2)的下止点(吸气)，联动框架的竖直极限位置对应活塞(6a1，6a2)的上止点(压缩空气)和活塞(6b1，6b2)的下止点(吸气)。
具体地，在本实施例中，每根臂杆的工作曲线包括敞开形的切入弧线以及驱动弧线5bb，驱动弧线5bb的一端5ac与切入弧线平滑连接，驱动弧线5bb的另一端与臂杆的内侧壁相交于切出点5aa，其中凸轮机构旋转时，以其中一根臂杆为例，相应的凸轮转轮经切入弧线滑入后与驱动弧线5bb接触进而驱动相应的臂杆运动，进而带动四根臂杆联动。另外，在每根臂杆的内侧壁上设有与扁形凸轮14配合的挤压面5ab，扁形凸轮14上具有两段对称设置的工作面(工作面的两个端点为14a和14b)，两段对称设置的工作面用来分别与相对设置的臂杆的挤压面5ab挤压配合。
如图15和图16所示，在凸轮机构旋转时，扁形凸轮14上的两段工作面分别与相对臂杆上的挤压面5ab同时接触进而驱动该相对臂杆张开。同时，凸轮转轮13a与驱动弧线5bb接触并挤压，使得四根臂杆进行联动，该四根联动的臂杆进而带动活塞沿气缸的轴线做伸缩动作。本实施例中的臂杆的工作曲线无需对称设计，以其中一根臂杆5a1为例，在凸轮转轮13a进入工作曲线的第一阶段，即在切入弧线阶段，凸轮转轮13a可以不与其接触，此时通过扁形凸轮14与臂杆5a1上的挤压面5ab的挤压使得臂杆5a1张开，当扁形凸轮14与臂杆5a1上的挤压面5ab的挤压使得臂杆5a1张开一定角度时，凸轮转轮13a开始滑入驱动弧线5bb并与驱动弧线5bb接触进而挤压臂杆5a1继续运动，当凸轮转轮13a滑出驱动弧线5bb的切出点5aa时，联动框架达到极限位置。之所以如此设计扁形凸轮14与凸轮转轮13a同时配合工作，目的就是使得凸轮机构驱动臂杆更加顺畅，有效减少了摩擦与噪音，提高了工作流畅性。
当然，上述方案中，驱动部可以设计为与凸轮支架3的两端一体成型的具有圆形面的滚动体，此时，滚动体与臂杆(5a1，5a2，5b1，5b2)的工作曲面为滑动摩擦，为了本机器的平稳运行，驱动部最好设计为凸轮转轮(13a，13b)的形式。
另外，在本实施例中，气缸7的底端部分裸露在柱形缸体1的缸体壁外，气缸7的中间部位设有辅助进气口11，提高了进气效率。单向出气阀8与导气管9接通，导气管9用来与需要压缩空气的装置接通，比如，给压力容器输入高压空气或直接向气动机具提供高压气源。特别的，该空气压缩机可适用于压缩缸与做功缸分开的发动机，其能做为该种发动机的组成部分，为发动机的点火做功缸提供高压空气，如申请人曾经申请过的专利号为ZL201320009730.9的涡轮转子节能发动机。
需要说明的是，本实施例提供的空气压缩机，可以沿柱形缸体1的轴向方向布置多套压缩装置，该多套压缩装置共同由传动轴2驱动，提高压缩空气的效率。
以下为本实施例提供的空气压缩机的具体工作过程的详细说明：
如图17至图20所示，在静止状态下(联动框架处于水平极限位置)，活塞(6a1，6a2)处于下止点吸空气，活塞(6b1，6b2)处于上止点，凸轮转轮13a处于臂杆5b2的切出点5aa，凸轮转轮13b处于臂杆5b1的切出点5aa上。凸轮机构继续转动，扁形凸轮14的工作面(14a至14b段)与臂杆(5a1，5a2)的挤压面5ab接触并压迫臂杆(5a1，5a2)运动，进而驱动四根臂杆联动，此时，臂杆(5a1，5a2)带动活塞(6a1，6a2)在吸满气的状态下开始向上止点运动压缩，活塞(6b1，6b2)则在臂杆联动下向下止点运动，当扁形凸轮14和挤压面5ab接触并转动至扁形凸轮14的顶点时(参见图20)，扁形凸轮14停止对臂杆(5a1，5a2)的挤压面5ab的压迫作用，此时，凸轮转轮(13a，13b)转到臂杆(5a1，5a2)的驱动弧线5bb上并接触压迫，完成驱动工作交接，活塞(6a1，6a2)沿气 缸继续压缩，活塞(6b1，6b2)也沿气缸向下止点同步运动，并通过单向进气口10向气缸吸气。
如图21至图25所示，当凸轮机构转动了45度，四根臂杆在凸轮机构驱动下联合转动呈由臂杆连接轴12为连点的正方形，此时活塞(6a1，6a2)沿气缸压缩了行程一半，活塞(6b1，6b2)沿气缸向下止点继续运动吸气至行程一半。凸轮机构继续转动，凸轮转轮(13a，13b)驱动臂杆(5a1，5a2)使联动框架联动，进而推动活塞(6a1，6a2)沿气缸继续向上止点压缩，当凸轮转轮(13a，13b)转至臂杆(5a1，5a2)的切出点5aa时(参见图24)，凸轮机构正好转动了90度，活塞(6a1，6a2)压缩到达上止点，压缩空气通过单向出气阀8压至导气管9，活塞(6a1，6a2)的压力消失，活塞(6b1，6b2)同时运行到下止点，铺助进气口11也开始进气，完成进气工作，此过程完成了两个活塞行程气量的压缩及吸气。
如图25所示，凸轮机构继续转动至180度时，凸轮转轮(13a，13b)转到臂杆(5b1，5b2)的切出点5aa，活塞(6b1，6b2)到达上止点，气缸气体被压进了导气管9，活塞(6b1，6b2)受到的压力消失呈暂时静止状态，同时活塞(6a1，6a2)同步到达下止点且完成了吸气，此时，机器完成了活塞4次压缩和吸气。
如图26所示，凸轮机构继续转动至270度的过程中，凸轮机构驱动臂杆(5a1，5a2)运动并沿工作曲线运行至臂杆(5a1，5a2)的切出点5aa，活塞(6a1，6a2)沿气缸压缩到了上止点，活塞(6b1，6b2)运行到了下止点呈暂时静止状态，机器此时完成了活塞第6次压缩和吸气。
如图27所示，传动轴2继续转动到360度时，凸轮机构驱动臂杆(5b1，5b2)运动并沿工作曲线运行至臂杆(5b1，5b2)的切出点5aa，活塞(6b1，6b2)沿气缸压缩到了上止点，活塞(6a1，6a2)吸气到了下止点呈暂时静止状态，此时，机器完成了活塞第8次压缩和吸气，至此，机器完成了转动一周的往返压缩和吸气工作进入下一循环工作。
前述对本发明的具体示例性实施方案的描述是为了说明和例证的目的。这些描述并非想将本发明限定为所公开的精确形式，并且很显然，根据上述教导，可以进行很多改变和变化。对示例性实施例进行选择和描述的目的在于解释本发明的特定原理及其实际应用，从而使得本领域的技术人员能够实现并利用本发明的各种不同的示例性实施方案以及各种不同的选择和改变。本发明的范围意在由权利要求书及其等同形式所限定。

Claims (15)

  1. 一种臂杆活塞联动式空气压缩机，其特征在于，包括：
    柱形缸体及传动轴，所述柱形缸体内部具有容腔，所述传动轴可旋转的设置在所述容腔内，所述传动轴处于所述柱形缸体的轴线位置上；
    压缩装置，其设置在所述柱形缸体上，所述压缩装置包括：
    四套气缸及设在所述气缸内的活塞，所述气缸沿所述柱形缸体的径向方向设置在所述柱形缸体的缸体壁上且沿所述缸体壁的周向排列，所述气缸的底部设有单向进气阀和单向出气阀，所述活塞的尾部能够在所述容腔内来回伸缩；
    凸轮机构，其固定在所述传动轴上与所述传动轴一起旋转，所述凸轮机构具有对称设置的驱动部，所述驱动部围绕所述传动轴做圆周运动从而形成旋转轨迹；
    四根联动的臂杆，所述臂杆的首尾端相互铰接进而形成联动框架，且所述四根臂杆的首尾连接端分别与对应的活塞的尾部铰接，每根臂杆的内侧壁上均设有与所述旋转轨迹相配合的工作曲线；
    其中所述凸轮机构驱动所述四根臂杆进行联动进而带动所述活塞沿所述气缸的轴线做伸缩动作，所述联动框架在联动中具有水平极限位置和竖直极限位置。
  2. 根据权利要求1所述的臂杆活塞联动式空气压缩机，其特征在于，所述四根臂杆等长，所述气缸沿所述缸体壁的周向均匀排列。
  3. 根据权利要求2所述的臂杆活塞联动式空气压缩机，其特征在于，所述凸轮机构包括凸轮支架和凸轮转轮，所述凸轮支架固定在所述传动轴上，所述凸轮转轮设置在所述凸轮支架的两端进而形成所述驱动部。
  4. 根据权利要求3所述的臂杆活塞联动式空气压缩机，其特征在于，每根臂杆的工作曲线包括：
    切入弧线，所述联动框架处于所述水平极限位置时所述切入弧线与所述旋转轨迹吻合；
    切出弧线，所述联动框架处于所述竖直极限位置时该臂杆的切出弧线与所述旋转轨迹吻合；
    驱动弧线，其同时与所述切入弧线和所述切出弧线平滑连接，所述凸轮转轮与所述驱动弧线接触时驱动所述臂杆进行联动。
  5. 根据权利要求4所述的臂杆活塞联动式空气压缩机，其特征在于，所述凸轮支架呈工字形，该工字形凸轮支架的两侧空间形成所述臂杆内侧壁的让位区域；
    所述凸轮转轮通过凸轮转轮轴安装在所述工字形凸轮支架的两端的中间位置；
    所述臂杆的首尾端通过臂杆连接轴铰接。
  6. 根据权利要求4所述的臂杆活塞联动式空气压缩机，其特征在于，每个所述臂杆连接轴的两端均安装有压送滚轮；
    所述凸轮支架的工形壁的端面上均设有与所述压送滚轮配合运动的辅助凸轮，所述凸轮支架旋转时所述辅助凸轮能够挤压对应的压送滚轮。
  7. 根据权利要求6所述的臂杆活塞联动式空气压缩机，其特征在于，所述臂杆连接轴上套装有滚轮。
  8. 根据权利要求1所述的臂杆活塞联动式空气压缩机，其特征在于，所述气缸的底端部分裸露在所述柱形缸体的缸体壁外，所述气缸的中间部位设有辅助进气口。
  9. 根据权利要求1所述的臂杆活塞联动式空气压缩机，其特征在于，所述单向出气阀与导气管接通。
  10. 根据权利要求1所述的臂杆活塞联动式空气压缩机，其特征在于，沿所述柱形缸体的轴向方向布置多套压缩装置，该多套压缩装置共同由所述传动轴驱动。
  11. 根据权利要求1所述的臂杆活塞联动式空气压缩机，其特征在于，所述凸轮机构的中心位置设有扁形凸轮，所述驱动部对称设置在所述扁形凸轮的两端，每根臂杆的内侧壁上还均设有与所述扁形凸轮配合的挤压面，所述凸轮机构通过所述驱动部与所述工作曲线配合、所述扁形凸轮与所述挤压面的配合来驱动所述四根臂杆进行联动。
  12. 根据权利要求11所述的臂杆活塞联动式空气压缩机，其特征在于，所述四根臂杆等长，所述气缸沿所述缸体壁的周向均匀排列。
  13. 根据权利要求12所述的臂杆活塞联动式空气压缩机，其特征在于，所述凸轮机构包括凸轮支架和凸轮转轮，所述凸轮支架固定在所述传动轴上，所述凸轮转轮设置在所述凸轮支架的两端进而形成所述驱动部。
  14. 根据权利要求13所述的臂杆活塞联动式空气压缩机，其特征在于，所述凸轮支架为工字形支架，该工字形支架的内侧空间形成所述臂杆内侧壁的让位区域，所述凸轮转轮通过凸轮转轮轴安装在所述凸轮支架的两端，所述扁形凸轮设置在所述工字形支架的中心位置。
  15. 根据权利要求14所述的臂杆活塞联动式空气压缩机，其特征在于，所述扁形凸轮上具有两段对称设置的工作面，所述凸轮机构旋转时，所述扁形凸轮上的两段工作面分别与相对臂杆上的挤压面同时接触进而驱动该相对臂杆张开；
    每根臂杆的工作曲线包括：
    切入弧线，其为敞开形；以及
    驱动弧线，其一端与所述切入弧线平滑连接，所述驱动弧线的另一端与所述臂杆的内侧壁相交于切出点；
    其中所述凸轮机构旋转时，所述凸轮转轮经所述切入弧线滑入后与所述驱动弧线接触进而驱动所述臂杆联动。
PCT/CN2015/078347 2014-05-08 2015-05-06 臂杆活塞联动式空气压缩机 WO2015169215A1 (zh)

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