WO2015154434A1 - Dual-rotor rotary positive displacement pump - Google Patents

Dual-rotor rotary positive displacement pump Download PDF

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Publication number
WO2015154434A1
WO2015154434A1 PCT/CN2014/089465 CN2014089465W WO2015154434A1 WO 2015154434 A1 WO2015154434 A1 WO 2015154434A1 CN 2014089465 W CN2014089465 W CN 2014089465W WO 2015154434 A1 WO2015154434 A1 WO 2015154434A1
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WIPO (PCT)
Prior art keywords
rotor
main
cam
pump casing
auxiliary
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Application number
PCT/CN2014/089465
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French (fr)
Chinese (zh)
Inventor
陈洪亮
李贺
刘林海
陈昊宇
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陈洪亮
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Publication of WO2015154434A1 publication Critical patent/WO2015154434A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type

Definitions

  • the present application belongs to the technical field of a positive displacement pump, and relates to a dual-rotor rotary positive displacement pump, and more particularly to an injection pump for use in a surfaceless propulsion of a surface vehicle.
  • the traditional surface vehicle uses a vane pump, a mixed flow pump, and a propeller-based vane pump as the propulsion device.
  • the vane pump can only be used in the vicinity of the best design working point to achieve efficiency, out of the optimal design conditions, and the efficiency is straight. Decline, and there is a larger restricted working area (not more than 500-50 hours per year).
  • the installation position of the vane pump is not adjustable.
  • the spout and the pump body can only be installed axially.
  • One pump and one spout can not change the direction of the spout.
  • the vane pump has a theoretical lower speed limit, and the efficiency drops sharply when it is lower than the rated speed, so the flow rate and energy consumption cannot be regulated.
  • the problem of cavitation and cavitation is the key to affecting the efficiency of the vane pump waterjet. High speeds cause the vane pump to draw in a large amount of air. The water jet propulsion efficiency is reduced. Therefore, it cannot be used on ships with a speed of more than 50 knots.
  • the vane pump relies on the rotational speed of the impeller to generate a force against water, which is noisy.
  • the material of the vane pump impeller is not steel or copper, which has large friction loss, large resistance, short service life and high weight.
  • the impeller of the vane pump is processed at a parabolic angle, and the diameter is increased, which increases the difficulty, which is not conducive to large-scale.
  • the purpose of the application is to provide a double-rotor rotary volumetric pump with simple structure, easy processing, low cost, light weight, wide working area, high efficiency, large flow, long service life, low noise and wide application.
  • a double-rotor rotary positive displacement pump includes a pump casing, a front end cover, a rear end cover, a main rotor and a secondary rotor, and a front end cover and a rear end cover are respectively installed at a front end and a rear end of the pump casing, and the front end cover is provided with an upper part,
  • the lower bearing seat and the rear end cover are provided with upper and lower bearing seats, and the features are:
  • An upper chamber and a lower chamber are arranged in the pump casing, and opposite water inlets and water outlets are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, and the auxiliary rotor is installed in the upper chamber of the pump casing, the main rotor It is composed of a main transmission shaft and at least two cams, which are circumferentially distributed around the main transmission shaft, and the secondary rotor is composed of a secondary transmission shaft and a cylindrical body with a cam groove, the number of cam grooves and the number of cams on the main rotor Similarly, the auxiliary drive shaft is disposed at the center of the cylinder, the main drive shaft is supported by bearings in the lower bearing housing of the front and rear end covers, and the auxiliary transmission shaft is supported by bearings in the upper bearing housing of the front and rear end covers, The cam mounted on the main rotor is tangent to the inner wall of the lower chamber of the pump casing, and the cylinder constituting the
  • the two sides of the cam are correspondingly provided with a notch.
  • the outer end of the main drive shaft is provided with a driving gear
  • the outer end of the auxiliary transmission shaft is provided with a driven gear
  • the driving gear is meshed with the driven gear
  • the outer end of the main transmission shaft is set There is a pulley, the pulley can be rotated at a high speed by the external power source, so that the driving gear and the driven gear rotate synchronously in opposite directions, and the main transmission shaft and the auxiliary transmission shaft also rotate in opposite directions.
  • the main rotor and the secondary rotor are also synchronously rotated in opposite directions.
  • the cam is provided with two.
  • the cams are provided with three.
  • an oil seal is further disposed in each of the bearing housings.
  • rotating 360 degrees a week can be between 120-180 degrees can be water;
  • the use is very wide, can be used for the propulsion device of the surface vehicle, can also be used in other industries, such as vapor-liquid mixed liquid, high-viscosity liquid extraction, high-flow high-lift fire pump use, etc.;
  • the dual-rotor rotary positive displacement pump provided by the present application can simplify the mechanism of the pump casing and provide better support for the rotating shaft.
  • the structure of the pump determines the optimal design efficiency of the pump.
  • the range of points is very wide. Due to the use of double rotors, there is no limit to the working area, no voids and cavitation zones, and higher efficiency under different working conditions. Turn above is efficient;
  • the head is high, can be made into a 360-degree rotary spout device, so that the control and rotation performance of the surface vehicle is enhanced;
  • the suction port and the spout of the pump body are connected with the hull, and the placement position is diversified. Front and rear, up and down, left and right can be maintained, it will reduce noise;
  • the pump noise is low regardless of normal navigation or acceleration
  • the structure is simple, the material can be selective, such as high-light materials such as polymers. Light weight and long life;
  • FIG. 1 is a schematic structural view of the first embodiment of the present application.
  • Figure 2 is a side view of Figure 1;
  • Figure 3 is an exploded view of Figure 1;
  • Figure 4 is an exploded view of Figure 3;
  • Figure 5 is an exploded view of Figure 4.
  • FIG. 6 is a schematic view showing the assembled structure of a pump casing, a main rotor and a sub-rotor according to Embodiment 1 of the present application;
  • FIG. 7 is a schematic structural view of a main rotor according to Embodiment 1 of the present application.
  • FIG. 8 is a schematic structural view of a secondary rotor according to Embodiment 1 of the present application.
  • Figure 9 is a schematic view showing the assembly structure of the rear end cover
  • FIG. 10 is a schematic view showing the assembly structure of a pump casing, a main rotor and a sub-rotor according to a second embodiment of the present application;
  • Figure 11 is a front elevational view of Figure 10;
  • Figure 12 is an exploded view of Figure 10
  • Figure 13 is a schematic structural view of a main rotor according to a second embodiment of the present application.
  • Figure 14 is a schematic structural view of a secondary rotor according to a second embodiment of the present application.
  • Figure 15 is a schematic view showing the assembly structure of a pump casing, a main rotor and a sub-rotor according to a third embodiment of the present application;
  • Figure 16 is a front elevational view of Figure 15;
  • Figure 17 is an exploded view of Figure 15;
  • FIG. 18 is a schematic structural view of a main rotor according to Embodiment 3 of the present application.
  • Figure 19 is a schematic view showing the assembled structure of a pump casing, a main rotor and a sub-rotor according to a fourth embodiment of the present application;
  • Figure 20 is a front elevational view of Figure 19;
  • Figure 21 is an exploded view of Figure 19;
  • FIG. 22 is a schematic structural view of a main rotor according to Embodiment 4 of the present application.
  • Embodiment 1 please refer to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 , the present application provides a dual-rotor rotary positive displacement pump, including a pump casing 1 .
  • the front end cover 2, the rear end cover 3, the main rotor 10, the auxiliary rotor 20, the front end cover 2, and the rear end cover 3 are respectively mounted on the front end and the rear end of the pump casing 1, and the front end cover 2 is provided with upper and lower bearing housings 4, 5, the rear end cover 3 is provided with upper and lower bearing seats 6, 7, each bearing is equipped with bearings and oil seals, please refer to Figure 9, the lower bearing housing 7 is equipped with bearings 18 and oil seal 19, the pump casing 1 is set
  • the upper chamber 8 and the lower chamber 9 are provided with a water inlet 14 and a water outlet 15 on the side wall of the lower chamber 9 of the pump casing.
  • the main rotor 10 is installed in the lower chamber 9 of the pump casing, and the secondary rotor 20 is mounted in the upper chamber 8 of the pump casing.
  • the main rotor 10 is constituted by a main drive shaft 11 and two cams 12, 13, which are circumferentially evenly distributed around the main drive shaft 11 (in other alternative embodiments, the cams 12, 13 surround the main drive shaft 11
  • the secondary rotor 20 is composed of a secondary drive shaft 21 and a cylindrical body 25 with cam grooves 22, 23, the number of cam grooves 22, 23 and the main rotor
  • the number of the cams 12, 13 is the same
  • the auxiliary drive shaft 21 is disposed at the center of the cylinder 25, and the main drive shaft 11 is supported by the bearings in the front and rear end cover lower bearing seats 5, 7, and the auxiliary drive shaft 21 is provided by the front and rear ends.
  • the cams 12, 13 mounted on the main rotor 10 are tangent to the inner wall of the lower chamber 9 of the pump casing, thereby reducing friction loss, and the lower chamber 9 of the pump casing is a working chamber, and the main rotor 10 is
  • the mounted cams 12, 13 form a dividing wall that divides the pump casing lower chamber 9 into a high pressure zone and a low pressure zone.
  • the cylindrical body 26 constituting the secondary rotor 20 is tangent to the inner wall of the upper chamber 8 of the pump casing, the cam mounted on the main rotor 10 coincides with the cam groove on the secondary rotor, and the secondary rotor 20 functions as a transition seal to rotate the main rotor 10 during the rotation process.
  • a high pressure zone and a low pressure zone are periodically formed in the working chamber, and the fluid is pressurized by a low pressure, and the fluid is extruded by a high pressure.
  • the outer end of the main propeller shaft 11 is provided with a driving gear 16, and the outer end of the auxiliary propeller shaft 21 is provided with a driven gear 17, the driving gear 16 meshes with the driven gear 17, and the outer end of the main propeller shaft 11 is provided with a pulley and a pulley.
  • the high-speed rotation is driven by the external power source, the driving gear 16 and the driven gear 17 are synchronously reversely rotated, and the main transmission shaft 11 and the auxiliary transmission shaft 21 are also synchronously reversely rotated, and the main rotor and the sub-rotor are also synchronously reversely rotated, due to the cam.
  • the lower chamber of the pump casing is divided into a high pressure zone and a low pressure zone, the water inlet is arranged in the low pressure zone, and the water outlet is arranged in the high pressure zone.
  • the main rotor starts to rotate, the water inlet sucks in the fluid, and after being pressurized, it is discharged from the water outlet and can be used as a jet pump.
  • Embodiment 2 please refer to FIG. 10, FIG. 11, FIG. 12, FIG. 13, and FIG. 14.
  • the present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the first embodiment, including a pump casing and a front end cover.
  • the rear end cover, the main rotor, the auxiliary rotor, the front end cover and the rear end cover are respectively mounted on the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats.
  • the upper and lower chambers are arranged in the pump casing, and the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, and the auxiliary rotor is installed in the upper chamber of the pump casing, and the difference is different.
  • the main rotor 30 is comprised of a main drive shaft 31 and three cams 32, 33.34 which are circumferentially evenly distributed around the main drive shaft 31 (in other alternative embodiments, the cams 32, 33, 34 surround the main
  • the drive shaft 31 is circumferentially non-uniformly distributed.
  • the secondary rotor 40 is composed of a secondary drive shaft 41 and a cylindrical body 45 with cam grooves 42, 43, 44.
  • the number of cam grooves 42, 43, 44 and the main rotor upper cams 32, 33, The number of 34 is the same, the auxiliary drive shaft 41 is disposed at the center of the cylinder 45, and the cams 32, 33, 34 mounted on the main rotor are tangent to the inner wall of the lower chamber 9 of the pump casing, forming the cylinder 45 and the pump casing of the sub-rotor 40.
  • the inner wall of the upper chamber 8 is tangent, and the cams 32, 33, 34 mounted on the main rotor coincide with the cam grooves 42, 43, 44 on the sub-rotor.
  • Embodiment 3 referring to FIG. 15, FIG. 16, FIG. 17, FIG. 18, the present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the first embodiment, including a pump casing, a front end cover, and a rear end cover.
  • the main rotor and the auxiliary rotor, the front end cover and the rear end cover are respectively installed at the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats, and the pump casing is provided.
  • the upper chamber and the lower chamber are arranged, the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, the auxiliary rotor is installed in the upper chamber of the pump casing, and the auxiliary rotor 20 is driven by the auxiliary transmission shaft.
  • 21 and a cylinder 25 having cam grooves 22, 23, the number of cam grooves 22, 23 being the same as the number of cams 12, 13 on the main rotor, and the sub-drive shaft 21 being disposed at the center of the cylinder 25, the difference being Lie in:
  • the main rotor 50 is comprised of a main drive shaft 51 and two cams 52, 53 that are circumferentially uniform around the main drive shaft 51 (in other alternative embodiments, the cams 52, 53 are circumferentially non-circular around the main drive shaft 51 Evenly distributed, the left and right sides of the cam 52 are correspondingly provided with notches 521 and 522, and the left and right sides of the cam 53 are provided with notches 531 and 532, and the setting is lacking.
  • the purpose of the mouth is to reduce the weight of the cam while increasing the volume of the working chamber, allowing more fluid to be drawn in and out.
  • Embodiment 4 referring to FIG. 19, FIG. 20, FIG. 21, FIG. 22, the present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the second embodiment, including a pump casing, a front end cover and a rear end cover.
  • the main rotor and the auxiliary rotor, the front end cover and the rear end cover are respectively installed at the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats, and the pump casing is provided.
  • the upper chamber and the lower chamber are arranged, the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, the auxiliary rotor is installed in the upper chamber of the pump casing, and the auxiliary rotor 40 is driven by the auxiliary transmission shaft.
  • 41 and a cylinder 45 having cam grooves 42, 43, 44, the number of cam grooves 42, 43, 44 being the same as the number of cams 32, 33, 34 on the main rotor, and the sub-transmission shaft 41 being disposed in the cylinder 45 Center, the difference is:
  • the main rotor 60 is comprised of a main drive shaft 61 and three cams 62, 63, 64 that are circumferentially uniform around the main drive shaft 61 (in other alternative embodiments, the cams 62, 63, 64 Surrounding the main drive shaft 61 in a circumferentially non-uniform distribution, the left and right sides of the cam 62 are correspondingly provided with missing days 621, 622, and the left and right sides of the cam 63 are correspondingly provided with notches 631, 632, the left side of the cam 64, The right side is correspondingly provided with notches 641, 642.
  • the purpose of the notch is to reduce the weight of the cam, and at the same time increase the volume of the working chamber, and more fluid can be sucked in and discharged.
  • the double-rotor rotary volumetric pump provided by the application has the advantages of simple structure, easy processing, low cost, light weight, wide working area, high efficiency, large flow, long service life, low noise and wide application.

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  • Rotary Pumps (AREA)
  • Mechanical Engineering (AREA)
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  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

A dual-rotor rotary positive displacement pump comprising a pump housing (1), a main rotor (10), and an auxiliary rotor (20). An upper cavity (8) and a lower cavity (9) are provided within the pump housing (1). A water inlet (14) and a water outlet (15) are provided on sidewalls of the pump housing lower cavity (9). The main rotor (10) is mounted in the pump housing lower cavity (9). The auxiliary rotor (20) is mounted in the pump housing upper cavity (8). The main rotor (10) is constituted by a main transmission shaft (11) and at least two cams (12 and 13). These cams (12 and 13) are distributed around the circumference of the main transmission shaft (11). The auxiliary rotor (20) is constituted by an auxiliary transmission shaft (21) and a cylinder (25) having cam grooves (22). The number of the cam grooves (22) is identical to the number of the cams (12 and 13) on the main rotor (10). The auxiliary transmission (21) is arranged at the center of the cylinder (25). The cams (12 and 13) mounted on the main rotor (10) are tangential to the inner wall of the pump housing lower cavity (9). The cylinder (25) constituting the auxiliary rotor (20) is tangential to the inner wall of the pump housing upper cavity (8). The cams (12 and 13) mounted on the main rotor (10) fit the cam grooves (22) on the auxiliary rotor (20). The positive displacement pump is structurally simple and easy to process, low in costs, and light in weight, and, provides a wide work area, high efficiency, large flow, extended service life, low noise, and a broad range of uses.

Description

双转子回转式容积泵Double rotor rotary positive displacement pump 技术领域Technical field
本申请属于容积泵技术领域，涉及双转子回转式容积泵，特别涉及一种用于水面航行器无轴推进使用的喷射泵。The present application belongs to the technical field of a positive displacement pump, and relates to a dual-rotor rotary positive displacement pump, and more particularly to an injection pump for use in a surfaceless propulsion of a surface vehicle.
背景技术Background technique
传统的水面航行器是采用轴流泵、混流泵、螺旋桨为基础的叶片泵作为推进装置，叶片泵只能在最佳设计工况点附近才能发挥效率，脱离最佳设计工况点，效率直线下降，且有较大的限制工作区域(年不超过500—50小时)。The traditional surface vehicle uses a vane pump, a mixed flow pump, and a propeller-based vane pump as the propulsion device. The vane pump can only be used in the vicinity of the best design working point to achieve efficiency, out of the optimal design conditions, and the efficiency is straight. Decline, and there is a larger restricted working area (not more than 500-50 hours per year).
叶片泵安装位置不可调整，喷口与泵体只能是轴向安装，一泵一喷口，喷口的方向不能改变。The installation position of the vane pump is not adjustable. The spout and the pump body can only be installed axially. One pump and one spout can not change the direction of the spout.
叶片泵存在理论转速下限，且低于额定转速时效率急剧下降，因此无法调控流量、能耗。目前空化、空泡问题是影响叶片泵喷水推进器效率的关键。高航速导致叶片泵吸入大量空气。喷水推进效率下降。因此，无法在航速超过50节的船舶上使用。The vane pump has a theoretical lower speed limit, and the efficiency drops sharply when it is lower than the rated speed, so the flow rate and energy consumption cannot be regulated. At present, the problem of cavitation and cavitation is the key to affecting the efficiency of the vane pump waterjet. High speeds cause the vane pump to draw in a large amount of air. The water jet propulsion efficiency is reduced. Therefore, it cannot be used on ships with a speed of more than 50 knots.
叶片泵依靠叶轮旋转速度产生对水的作用力，噪音大。The vane pump relies on the rotational speed of the impeller to generate a force against water, which is noisy.
叶片泵叶轮材料非钢即铜，摩擦损耗大，阻力大，使用寿命短，而且重量大。The material of the vane pump impeller is not steel or copper, which has large friction loss, large resistance, short service life and high weight.
叶片泵的叶轮按抛物线角度加工，直径增大，难度增加，不利于大型化。The impeller of the vane pump is processed at a parabolic angle, and the diameter is increased, which increases the difficulty, which is not conducive to large-scale.
目前，水面航行器的发展趋势是高航速、高效率、低噪声、低损耗，易维护，因此急需研发一种新式的喷射泵，以取代传统的叶片泵。 At present, the development trend of surface crafts is high speed, high efficiency, low noise, low loss and easy maintenance. Therefore, it is urgent to develop a new type of jet pump to replace the traditional vane pump.
发明内容Summary of the invention
本申请的目的是提供一种双转子回转式容积泵，结构简单，加工容易，成本低，重量轻，工作区域宽、效率高，流量大，使用寿命长，噪音低，用途广泛。The purpose of the application is to provide a double-rotor rotary volumetric pump with simple structure, easy processing, low cost, light weight, wide working area, high efficiency, large flow, long service life, low noise and wide application.
为实现上述目的，本申请采用以下技术方案:To achieve the above objectives, the present application adopts the following technical solutions:
一种双转子回转式容积泵，包括泵壳、前端盖、后端盖、主转子、副转子，前端盖、后端盖分别安装在泵壳的前端和后端，前端盖上设置有上、下轴承座，后端盖上设置有上、下轴承座，其特征是:A double-rotor rotary positive displacement pump includes a pump casing, a front end cover, a rear end cover, a main rotor and a secondary rotor, and a front end cover and a rear end cover are respectively installed at a front end and a rear end of the pump casing, and the front end cover is provided with an upper part, The lower bearing seat and the rear end cover are provided with upper and lower bearing seats, and the features are:
泵壳内设置有上腔和下腔，泵壳下腔侧壁上设置有相对的进水口、出水口，主转子安装在泵壳下腔中，副转子安装在泵壳上腔中，主转子由主传动轴和至少两个凸轮构成，这些凸轮环绕主传动轴周向分布，副转子由副传动轴和带有凸轮槽的圆柱体构成，凸轮槽的数量与所述主转子上凸轮的数量相同，副传动轴设置在圆柱体的中心，主传动轴由前、后端盖的下轴承座中的轴承支承，副传动轴由前、后端盖的上轴承座中的轴承支承，所述主转子上安装的凸轮与泵壳下腔内壁相切，构成副转子的所述圆柱体与泵壳上腔内壁相切，主转子上安装的凸轮与副转子上的凸轮槽相吻合。An upper chamber and a lower chamber are arranged in the pump casing, and opposite water inlets and water outlets are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, and the auxiliary rotor is installed in the upper chamber of the pump casing, the main rotor It is composed of a main transmission shaft and at least two cams, which are circumferentially distributed around the main transmission shaft, and the secondary rotor is composed of a secondary transmission shaft and a cylindrical body with a cam groove, the number of cam grooves and the number of cams on the main rotor Similarly, the auxiliary drive shaft is disposed at the center of the cylinder, the main drive shaft is supported by bearings in the lower bearing housing of the front and rear end covers, and the auxiliary transmission shaft is supported by bearings in the upper bearing housing of the front and rear end covers, The cam mounted on the main rotor is tangent to the inner wall of the lower chamber of the pump casing, and the cylinder constituting the sub-rotor is tangent to the inner wall of the upper chamber of the pump casing, and the cam mounted on the main rotor coincides with the cam groove on the sub-rotor.
优选的，所述凸轮的两侧对应地设置有缺口。Preferably, the two sides of the cam are correspondingly provided with a notch.
优选的，所述主传动轴外端设置有主动齿轮，所述副传动轴外端设置有被动齿轮，所述主动齿轮与所述被动齿轮相啮合；所述主传动轴的外端轴头设置有皮带轮，所述皮带轮能够在外部动力源的带动下高速旋转，进而使得所述主动齿轮、所述被动齿轮同步反向旋转，所述主传动轴和所述副传动轴也同步反向旋转，所述主转子和所述副转子也同步反向旋转。 Preferably, the outer end of the main drive shaft is provided with a driving gear, the outer end of the auxiliary transmission shaft is provided with a driven gear, the driving gear is meshed with the driven gear; and the outer end of the main transmission shaft is set There is a pulley, the pulley can be rotated at a high speed by the external power source, so that the driving gear and the driven gear rotate synchronously in opposite directions, and the main transmission shaft and the auxiliary transmission shaft also rotate in opposite directions. The main rotor and the secondary rotor are also synchronously rotated in opposite directions.
优选的，所述凸轮设置有2个。Preferably, the cam is provided with two.
优选的，所述凸轮设置有3个。Preferably, the cams are provided with three.
优选的，每个所述轴承座中还设置有油封。Preferably, an oil seal is further disposed in each of the bearing housings.
本申请提供的双转子回转式容积泵具有以下优点中的至少一个:The dual rotor rotary positive displacement pump provided by the present application has at least one of the following advantages:
1、左右旋转可以出水；1. Rotate left and right to make water;
2、旋转1—1000转可以出水；2, rotating 1 - 1000 revolutions can be discharged;
3、旋转360度一周，可在120—180度之间都可以出水；3, rotating 360 degrees a week, can be between 120-180 degrees can be water;
4、旋转500—1000转时可加15％—40％的空气，可增加30％以上的功率，(液体是不能压缩、气体可以压缩。而压缩出来的“汽液”混合喷流，大大提高了做功效率)；4. When rotating 500-1000 rpm, 15%-40% of air can be added, which can increase power by more than 30%. (The liquid can not be compressed, the gas can be compressed. The compressed "steam-liquid" mixed jet is greatly improved. Work efficiency)
5、体积小、重量轻、流量大、扬程高、造价低；5, small size, light weight, large flow, high lift, low cost;
6、用途很广，可用于水面航行器的推进装置，也可用于其它行业上，如汽液混合液体、粘连度高的液体的汲取、大流量高扬程的消防泵使用等等；6, the use is very wide, can be used for the propulsion device of the surface vehicle, can also be used in other industries, such as vapor-liquid mixed liquid, high-viscosity liquid extraction, high-flow high-lift fire pump use, etc.;
7、本申请提供的双转子回转式容积泵，能够简化泵外壳的机构，并给转动轴提供更好的支撑。7. The dual-rotor rotary positive displacement pump provided by the present application can simplify the mechanism of the pump casing and provide better support for the rotating shaft.
本申请提供的容积泵作为水面航行器的推进泵使用时还具有以下特有的优点:The positive displacement pump provided by the present application also has the following unique advantages when used as a propulsion pump for a surface vehicle:
1、泵的结构决定了泵的最佳设计效率点范围很宽，由于采用双转子，因此无限制工作区域，无空穴、空蚀区，在不同工况下均有较高效率，在零转以上即有效率； 1. The structure of the pump determines the optimal design efficiency of the pump. The range of points is very wide. Due to the use of double rotors, there is no limit to the working area, no voids and cavitation zones, and higher efficiency under different working conditions. Turn above is efficient;
2、扬程高，可制作成360度旋转喷口装置，使水面航行器的操控、回转性能增强；2, the head is high, can be made into a 360-degree rotary spout device, so that the control and rotation performance of the surface vehicle is enhanced;
3,泵体吸水口、喷口与船体衔接，安放位置多样化。前后、上下、左右均可，便维护，便降噪；3. The suction port and the spout of the pump body are connected with the hull, and the placement position is diversified. Front and rear, up and down, left and right can be maintained, it will reduce noise;
4、在转速的适应性上是大于零转即可做工，在此之间可自由选择使用转速。在一定范围内可自由选择流量；4, in the adaptability of the speed is greater than zero turn can be done, between which you can freely choose to use the speed. Freely select the flow within a certain range;
5、无论正常航行还是加速时泵噪音低；5. The pump noise is low regardless of normal navigation or acceleration;
6、构造简单，材质可选择性强，如高分子等轻体材料。重量轻，寿命长；6, the structure is simple, the material can be selective, such as high-light materials such as polymers. Light weight and long life;
7、大型化不增加工艺难度，可实现性强。7, large-scale does not increase the difficulty of the process, can be achieved.
附图说明DRAWINGS
图1是本申请实施例一的外形结构示意图；1 is a schematic structural view of the first embodiment of the present application;
图2是图1的侧视图；Figure 2 is a side view of Figure 1;
图3是图1的分解图；Figure 3 is an exploded view of Figure 1;
图4是图3的分解图；Figure 4 is an exploded view of Figure 3;
图5是图4的分解图；Figure 5 is an exploded view of Figure 4;
图6是本申请实施例一的泵壳、主转子、副转子组装结构示意图；6 is a schematic view showing the assembled structure of a pump casing, a main rotor and a sub-rotor according to Embodiment 1 of the present application;
图7是本申请实施例一的主转子的结构示意图；7 is a schematic structural view of a main rotor according to Embodiment 1 of the present application;
图8是本申请实施例一的副转子的结构示意图；8 is a schematic structural view of a secondary rotor according to Embodiment 1 of the present application;
图9是后端盖的组装结构示意图；Figure 9 is a schematic view showing the assembly structure of the rear end cover;
图10是本申请实施例二的泵壳、主转子、副转子组装结构示意图；10 is a schematic view showing the assembly structure of a pump casing, a main rotor and a sub-rotor according to a second embodiment of the present application;
图11是图10的正视图； Figure 11 is a front elevational view of Figure 10;
图12是图10的分解图；Figure 12 is an exploded view of Figure 10;
图13是本申请实施例二的主转子的结构示意图；Figure 13 is a schematic structural view of a main rotor according to a second embodiment of the present application;
图14是本申请实施例二的副转子的结构示意图；Figure 14 is a schematic structural view of a secondary rotor according to a second embodiment of the present application;
图15是本申请实施例三的泵壳、主转子、副转子组装结构示意图；Figure 15 is a schematic view showing the assembly structure of a pump casing, a main rotor and a sub-rotor according to a third embodiment of the present application;
图16是图15的正视图；Figure 16 is a front elevational view of Figure 15;
图17是图15的分解图；Figure 17 is an exploded view of Figure 15;
图18是本申请实施例三的主转子的结构示意图；18 is a schematic structural view of a main rotor according to Embodiment 3 of the present application;
图19是本申请实施例四的泵壳、主转子、副转子组装结构示意图；Figure 19 is a schematic view showing the assembled structure of a pump casing, a main rotor and a sub-rotor according to a fourth embodiment of the present application;
图20是图19的正视图；Figure 20 is a front elevational view of Figure 19;
图21是图19的分解图；Figure 21 is an exploded view of Figure 19;
图22是本申请实施例四的主转子的结构示意图。FIG. 22 is a schematic structural view of a main rotor according to Embodiment 4 of the present application.
具体实施方式detailed description
图中标号Label in the figure
1泵壳       2前端盖     3后端盖1 pump housing 2 front end cover 3 rear end cover
4上轴承座   5下轴承座   6上轴承座4 upper bearing housing 5 lower bearing housing 6 upper bearing housing
7下轴承座   8上腔       9下腔7 lower bearing housing 8 upper chamber 9 lower chamber
10主转子    11主传动轴  12凸轮10 main rotor 11 main drive shaft 12 cam
13凸轮      14进水口    15出水口13 cam 14 water inlet 15 water outlet
16主动齿轮  17被动齿轮  18轴承16 drive gear 17 driven gear 18 bearing
19油封      20副转子    21副传动轴19 oil seal 20 secondary rotor 21 auxiliary drive shaft
22凸轮槽    23凸轮槽    25圆柱体22 cam groove 23 cam groove 25 cylinder
30主转子    31主传动轴  32凸轮 30 main rotor 31 main drive shaft 32 cam
33凸轮    34凸轮33 cam 34 cam
40副转子  41副传动轴40 rotors 41 vice shafts
42凸轮槽  43凸轮槽   44凸轮槽42 cam groove 43 cam groove 44 cam groove
45圆柱体45 cylinder
50主转子  51主传动轴50 main rotor 51 main drive shaft
52凸轮    521缺口    522缺口52 cam 521 notch 522 notch
53凸轮    531缺口    532缺口53 cam 531 notch 532 notch
60主转子  61主传动轴60 main rotor 61 main drive shaft
62凸轮    621缺口    622缺口62 cam 621 notch 622 notch
63凸轮    631缺口    632缺口63 cam 631 notch 632 notch
64凸轮    641缺口    642缺口64 cam 641 notch 642 notch
实施例一，请参照图1、图2、图3、图4、图5、图6、图7、图8、图9，本申请提供一种双转子回转式容积泵，包括泵壳1、前端盖2、后端盖3、主转子10,副转子20，前端盖2、后端盖3分别安装在泵壳1的前端和后端，前端盖2上设置有上、下轴承座4、5，后端盖3上设置有上、下轴承座6、7，每个轴承座内装有轴承和油封，请参照图9，下轴承座7内装有轴承18和油封19，泵壳1内设置有上腔8和下腔9，泵壳下腔9侧壁上设置有进水口14、出水口15，主转子10安装在泵壳下腔9中，副转子20安装在泵壳上腔8中，主转子10由主传动轴11和两个凸轮12、13构成，这些凸轮12、13环绕主传动轴11周向均布(在其他的可选的实施方式中，凸轮12、13环绕主传动轴11周向非均匀分布)，副转子20由副传动轴21和带有凸轮槽22、23的圆柱体25构成，凸轮槽22、23的数量与主转子上 凸轮12、13的数量相同，副传动轴21设置在圆柱体25的中心，主传动轴11由前、后端盖下轴承座5、7中的轴承支承，副传动轴21由前、后端盖上轴承座4、6中的轴承支承，主转子10上安装的凸轮12、13与泵壳下腔9内壁相切，从而减少摩擦损耗，泵壳下腔9为工作腔，主转子10上安装的凸轮12、13形成了分隔壁，将泵壳下腔9分成高压区和低压区。构成副转子20的圆柱体26与泵壳上腔8内壁相切，主转子10上安装的凸轮与副转子上的凸轮槽相吻合，副转子20起过渡密封作用，使主转子10在旋转过程中，周期性在工作腔中形成高压区和低压区，利用低压吸入流体，利用高压挤出流体。 Embodiment 1, please refer to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , FIG. 6 , FIG. 7 , FIG. 8 and FIG. 9 , the present application provides a dual-rotor rotary positive displacement pump, including a pump casing 1 . The front end cover 2, the rear end cover 3, the main rotor 10, the auxiliary rotor 20, the front end cover 2, and the rear end cover 3 are respectively mounted on the front end and the rear end of the pump casing 1, and the front end cover 2 is provided with upper and lower bearing housings 4, 5, the rear end cover 3 is provided with upper and lower bearing seats 6, 7, each bearing is equipped with bearings and oil seals, please refer to Figure 9, the lower bearing housing 7 is equipped with bearings 18 and oil seal 19, the pump casing 1 is set The upper chamber 8 and the lower chamber 9 are provided with a water inlet 14 and a water outlet 15 on the side wall of the lower chamber 9 of the pump casing. The main rotor 10 is installed in the lower chamber 9 of the pump casing, and the secondary rotor 20 is mounted in the upper chamber 8 of the pump casing. The main rotor 10 is constituted by a main drive shaft 11 and two cams 12, 13, which are circumferentially evenly distributed around the main drive shaft 11 (in other alternative embodiments, the cams 12, 13 surround the main drive shaft 11 The circumferential non-uniform distribution), the secondary rotor 20 is composed of a secondary drive shaft 21 and a cylindrical body 25 with cam grooves 22, 23, the number of cam grooves 22, 23 and the main rotor The number of the cams 12, 13 is the same, the auxiliary drive shaft 21 is disposed at the center of the cylinder 25, and the main drive shaft 11 is supported by the bearings in the front and rear end cover lower bearing seats 5, 7, and the auxiliary drive shaft 21 is provided by the front and rear ends. Covering the bearing support in the bearing housings 4, 6, the cams 12, 13 mounted on the main rotor 10 are tangent to the inner wall of the lower chamber 9 of the pump casing, thereby reducing friction loss, and the lower chamber 9 of the pump casing is a working chamber, and the main rotor 10 is The mounted cams 12, 13 form a dividing wall that divides the pump casing lower chamber 9 into a high pressure zone and a low pressure zone. The cylindrical body 26 constituting the secondary rotor 20 is tangent to the inner wall of the upper chamber 8 of the pump casing, the cam mounted on the main rotor 10 coincides with the cam groove on the secondary rotor, and the secondary rotor 20 functions as a transition seal to rotate the main rotor 10 during the rotation process. In the process, a high pressure zone and a low pressure zone are periodically formed in the working chamber, and the fluid is pressurized by a low pressure, and the fluid is extruded by a high pressure.
主传动轴11的外端装有主动齿轮16，副传动轴21的外端装有被动齿轮17，主动齿轮16与被动齿轮17相啮合，主传动轴11的外端轴头装有皮带轮，皮带轮在外部动力源的带动下高速旋转，主动齿轮16、被动齿轮17同步反向旋转，主传动轴11和副传动轴21也同步反向旋转，主转子和副转子也同步反向旋转，由于凸轮12、13形成分隔壁，将泵壳下腔分成了高压区和低压区，进水口设置在低压区，出水口设置在高压区。当主转子开始旋转后，进水口吸入流体，经过加压后，由出水口排出，可以作为喷射泵使用。The outer end of the main propeller shaft 11 is provided with a driving gear 16, and the outer end of the auxiliary propeller shaft 21 is provided with a driven gear 17, the driving gear 16 meshes with the driven gear 17, and the outer end of the main propeller shaft 11 is provided with a pulley and a pulley. The high-speed rotation is driven by the external power source, the driving gear 16 and the driven gear 17 are synchronously reversely rotated, and the main transmission shaft 11 and the auxiliary transmission shaft 21 are also synchronously reversely rotated, and the main rotor and the sub-rotor are also synchronously reversely rotated, due to the cam. 12, 13 form a partition wall, the lower chamber of the pump casing is divided into a high pressure zone and a low pressure zone, the water inlet is arranged in the low pressure zone, and the water outlet is arranged in the high pressure zone. When the main rotor starts to rotate, the water inlet sucks in the fluid, and after being pressurized, it is discharged from the water outlet and can be used as a jet pump.
实施例二，请参照图10，图11、图12、图13、图14，本申请提供一种双转子回转式容积泵，其主体结构与上述实施例一相同，包括泵壳、前端盖、后端盖、主转子、副转子，前端盖、后端盖分别安装在泵壳的前端和后端，前端盖上设置有上、下轴承座，后端盖上设置有上、下轴承座， 泵壳内设置有上腔和下腔，泵壳下腔侧壁上设置有进水口、出水口，主转子安装在泵壳下腔中，副转子安装在泵壳上腔中，其不同之处在于: Embodiment 2, please refer to FIG. 10, FIG. 11, FIG. 12, FIG. 13, and FIG. 14. The present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the first embodiment, including a pump casing and a front end cover. The rear end cover, the main rotor, the auxiliary rotor, the front end cover and the rear end cover are respectively mounted on the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats. The upper and lower chambers are arranged in the pump casing, and the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, and the auxiliary rotor is installed in the upper chamber of the pump casing, and the difference is different. Lie in:
主转子30由主传动轴31和三个凸轮32,33.34构成，这些凸轮32、33、34环绕主传动轴31周向均布(在其他的可选的实施方式中，凸轮32、33、34环绕主传动轴31周向非均匀分布)，副转子40由副传动轴41和带有凸轮槽42、43、44的圆柱体45构成，凸轮槽42、43、44的数量与主转子上凸轮32,33,34的数量相同，副传动轴41设置在圆柱体45的中心，主转子上安装的凸轮32、33、34与泵壳下腔9的内壁相切，构成副转子40的圆柱体45与泵壳上腔8的内壁相切，主转子上安装的凸轮32、33、34与副转子上的凸轮槽42、43、44相吻合。The main rotor 30 is comprised of a main drive shaft 31 and three cams 32, 33.34 which are circumferentially evenly distributed around the main drive shaft 31 (in other alternative embodiments, the cams 32, 33, 34 surround the main The drive shaft 31 is circumferentially non-uniformly distributed. The secondary rotor 40 is composed of a secondary drive shaft 41 and a cylindrical body 45 with cam grooves 42, 43, 44. The number of cam grooves 42, 43, 44 and the main rotor upper cams 32, 33, The number of 34 is the same, the auxiliary drive shaft 41 is disposed at the center of the cylinder 45, and the cams 32, 33, 34 mounted on the main rotor are tangent to the inner wall of the lower chamber 9 of the pump casing, forming the cylinder 45 and the pump casing of the sub-rotor 40. The inner wall of the upper chamber 8 is tangent, and the cams 32, 33, 34 mounted on the main rotor coincide with the cam grooves 42, 43, 44 on the sub-rotor.
实施例三，请参照图15、图16、图17、图18，本申请提供一种双转子回转式容积泵，其主体结构与上述实施例一相同，包括泵壳、前端盖、后端盖、主转子、副转子，前端盖、后端盖分别安装在泵壳的前端和后端，前端盖上设置有上、下轴承座，后端盖上设置有上、下轴承座，泵壳内设置有上腔和下腔，泵壳下腔侧壁上设置有进水口、出水口，主转子安装在泵壳下腔中，副转子安装在泵壳上腔中，副转子20由副传动轴21和带有凸轮槽22、23的圆柱体25构成，凸轮槽22、23的数量与主转子上凸轮12、13的数量相同，副传动轴21设置在圆柱体25的中心，其不同之处在于: Embodiment 3, referring to FIG. 15, FIG. 16, FIG. 17, FIG. 18, the present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the first embodiment, including a pump casing, a front end cover, and a rear end cover. The main rotor and the auxiliary rotor, the front end cover and the rear end cover are respectively installed at the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats, and the pump casing is provided. The upper chamber and the lower chamber are arranged, the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, the auxiliary rotor is installed in the upper chamber of the pump casing, and the auxiliary rotor 20 is driven by the auxiliary transmission shaft. 21 and a cylinder 25 having cam grooves 22, 23, the number of cam grooves 22, 23 being the same as the number of cams 12, 13 on the main rotor, and the sub-drive shaft 21 being disposed at the center of the cylinder 25, the difference being Lie in:
主转子50由主传动轴51和两个凸轮52、53构成，这些凸轮52、53环绕主传动轴51周向均布(在其他的可选的实施方式中，凸轮52、53环绕主传动轴51周向非均匀分布)，凸轮52的左、右两侧对应的设置有缺口521、522，凸轮53的左、右两侧对应的设置有缺口531、532，设置缺 口的目的是减轻凸轮的重量，同时增加工作腔的容积，可以吸入和排出更多的流体。The main rotor 50 is comprised of a main drive shaft 51 and two cams 52, 53 that are circumferentially uniform around the main drive shaft 51 (in other alternative embodiments, the cams 52, 53 are circumferentially non-circular around the main drive shaft 51 Evenly distributed, the left and right sides of the cam 52 are correspondingly provided with notches 521 and 522, and the left and right sides of the cam 53 are provided with notches 531 and 532, and the setting is lacking. The purpose of the mouth is to reduce the weight of the cam while increasing the volume of the working chamber, allowing more fluid to be drawn in and out.
实施例四，请参照图19、图20、图21、图22，本申请提供一种双转子回转式容积泵，其主体结构与上述实施例二相同，包括泵壳、前端盖、后端盖、主转子、副转子，前端盖、后端盖分别安装在泵壳的前端和后端，前端盖上设置有上、下轴承座，后端盖上设置有上、下轴承座，泵壳内设置有上腔和下腔，泵壳下腔侧壁上设置有进水口、出水口，主转子安装在泵壳下腔中，副转子安装在泵壳上腔中，副转子40由副传动轴41和带有凸轮槽42、43、44的圆柱体45构成，凸轮槽42、43、44的数量与主转子上凸轮32、33、34的数量相同，副传动轴41设置在圆柱体45的中心，其不同之处在于: Embodiment 4, referring to FIG. 19, FIG. 20, FIG. 21, FIG. 22, the present application provides a dual-rotor rotary positive displacement pump, the main structure of which is the same as that of the second embodiment, including a pump casing, a front end cover and a rear end cover. The main rotor and the auxiliary rotor, the front end cover and the rear end cover are respectively installed at the front end and the rear end of the pump casing, and the front end cover is provided with upper and lower bearing seats, and the rear end cover is provided with upper and lower bearing seats, and the pump casing is provided. The upper chamber and the lower chamber are arranged, the water inlet and the water outlet are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, the auxiliary rotor is installed in the upper chamber of the pump casing, and the auxiliary rotor 40 is driven by the auxiliary transmission shaft. 41 and a cylinder 45 having cam grooves 42, 43, 44, the number of cam grooves 42, 43, 44 being the same as the number of cams 32, 33, 34 on the main rotor, and the sub-transmission shaft 41 being disposed in the cylinder 45 Center, the difference is:
主转子60由主传动轴61和三个凸轮62、63、64构成，这些凸轮62、63、64环绕主传动轴61周向均布(在其他的可选的实施方式中，凸轮62、63、64环绕主传动轴61周向非均匀分布)，凸轮62的左、右两侧对应的设置有缺日621、622，凸轮63的左、右两侧对应的设置有缺口631、632,凸轮64的左、右两侧对应的设置有缺口641、642，设置缺口的目的是减轻凸轮的重量，同时增加工作腔的容积，可以吸入和排出更多的流体。The main rotor 60 is comprised of a main drive shaft 61 and three cams 62, 63, 64 that are circumferentially uniform around the main drive shaft 61 (in other alternative embodiments, the cams 62, 63, 64 Surrounding the main drive shaft 61 in a circumferentially non-uniform distribution, the left and right sides of the cam 62 are correspondingly provided with missing days 621, 622, and the left and right sides of the cam 63 are correspondingly provided with notches 631, 632, the left side of the cam 64, The right side is correspondingly provided with notches 641, 642. The purpose of the notch is to reduce the weight of the cam, and at the same time increase the volume of the working chamber, and more fluid can be sucked in and discharged.
本申请提供的双转子回转式容积泵，结构简单，加工容易，成本低，重量轻，工作区域宽、效率高，流量大，使用寿命长，噪音低，用途广泛。 The double-rotor rotary volumetric pump provided by the application has the advantages of simple structure, easy processing, low cost, light weight, wide working area, high efficiency, large flow, long service life, low noise and wide application.

Claims (6)

  1. 一种双转子回转式容积泵，包括泵壳、前端盖、后端盖、主转子、副转子，前端盖、后端盖分别安装在泵壳的前端和后端，前端盖上设置有上、下轴承座，后端盖上设置有上、下轴承座，其特征是:A double-rotor rotary positive displacement pump includes a pump casing, a front end cover, a rear end cover, a main rotor and a secondary rotor, and a front end cover and a rear end cover are respectively installed at a front end and a rear end of the pump casing, and the front end cover is provided with an upper part, The lower bearing seat and the rear end cover are provided with upper and lower bearing seats, and the features are:
    泵壳内设置有上腔和下腔，泵壳下腔侧壁上设置有相对的进水口、出水口，主转子安装在泵壳下腔中，副转子安装在泵壳上腔中，主转子由主传动轴和至少两个凸轮构成，这些凸轮环绕主传动轴周向分布，副转子由副传动轴和带有凸轮槽的圆柱体构成，凸轮槽的数量与所述主转子上凸轮的数量相同，副传动轴设置在圆柱体的中心，主传动轴由前、后端盖的下轴承座中的轴承支承，副传动轴由前、后端盖的上轴承座中的轴承支承，所述主转子上安装的凸轮与泵壳下腔内壁相切，构成副转子的所述圆柱体与泵壳上腔内壁相切，主转子上安装的凸轮与副转子上的凸轮槽相吻合。An upper chamber and a lower chamber are arranged in the pump casing, and opposite water inlets and water outlets are arranged on the side wall of the lower chamber of the pump casing, the main rotor is installed in the lower chamber of the pump casing, and the auxiliary rotor is installed in the upper chamber of the pump casing, the main rotor It is composed of a main transmission shaft and at least two cams, which are circumferentially distributed around the main transmission shaft, and the secondary rotor is composed of a secondary transmission shaft and a cylindrical body with a cam groove, the number of cam grooves and the number of cams on the main rotor Similarly, the auxiliary drive shaft is disposed at the center of the cylinder, the main drive shaft is supported by bearings in the lower bearing housing of the front and rear end covers, and the auxiliary transmission shaft is supported by bearings in the upper bearing housing of the front and rear end covers, The cam mounted on the main rotor is tangent to the inner wall of the lower chamber of the pump casing, and the cylinder constituting the sub-rotor is tangent to the inner wall of the upper chamber of the pump casing, and the cam mounted on the main rotor coincides with the cam groove on the sub-rotor.
  2. 如权利要求1所述的双转子回转式容积泵，其特征是:所述凸轮的两侧对应地设置有缺口。A dual-rotor rotary positive displacement pump according to claim 1, wherein both sides of said cam are correspondingly provided with a notch.
  3. 如权利要求1所述的双转子回转式容积泵，其特征是:所述主传动轴外端设置有主动齿轮，所述副传动轴外端设置有被动齿轮，所述主动齿轮与所述被动齿轮相啮合；所述主传动轴的外端轴头设置有皮带轮，所述皮带轮能够在外部动力源的带动下高速旋转，进而使得所述主动齿轮、所述被动齿轮同步反向旋转，所述主传动轴和所述副传动轴也同步反向旋转，所述主转子和所述副转子也同步反向旋转。A dual-rotor rotary positive displacement pump according to claim 1, wherein: the outer end of the main drive shaft is provided with a driving gear, and the outer end of the auxiliary transmission shaft is provided with a driven gear, the driving gear and the passive The gear is engaged; the outer end of the main drive shaft is provided with a pulley, and the pulley can be rotated at a high speed by an external power source, so that the driving gear and the driven gear rotate in opposite directions synchronously. The main drive shaft and the secondary drive shaft are also synchronously reversely rotated, and the main rotor and the secondary rotor are also synchronously rotated in opposite directions.
  4. 如权利要求1所述的双转子回转式容积泵，其特征是:所述凸轮设置有2个。 A dual-rotor rotary positive displacement pump according to claim 1, wherein said cam is provided with two.
  5. 如权利要求1所述的双转子回转式容积泵，其特征是:所述凸轮设置有3个。A dual-rotor rotary positive displacement pump according to claim 1, wherein said cam is provided with three.
  6. 如权利要求1所述的双转子回转式容积泵，其特征是:每个所述轴承座中还设置有油封。 A dual-rotor rotary positive displacement pump according to claim 1, wherein each of said bearing housings is further provided with an oil seal.
PCT/CN2014/089465 2014-04-11 2014-10-24 Dual-rotor rotary positive displacement pump WO2015154434A1 (en)

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CN203783890U (en) * 2014-04-11 2014-08-20 陈洪亮 Double-rotor rotary positive displacement pump
CN105545728A (en) * 2016-02-18 2016-05-04 陈洪亮 Two-cavity positive displacement pump
CN106678038A (en) * 2017-02-15 2017-05-17 王映辉 Double-triangular rotor pump
CN107218214A (en) * 2017-07-03 2017-09-29 重庆洪量泵业有限公司 One kind deformation scraping blade displacement pump
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CN110080976A (en) * 2019-06-18 2019-08-02 河北农业大学 A kind of butterfly twayblade wheel positive displacement pump
CN115370950B (en) * 2022-08-19 2024-01-16 西南石油大学 Active oil supply lubrication bearing system of self-generating rotor oil transfer pump

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