阅读说明：本技术 一种新型偏心转子水泵 (Novel eccentric rotor water pump ) 是由 张霄 戚厚羿 申登峦 方业云 徐士友 张海勇 于 2020-06-11 设计创作，主要内容包括：本发明涉及一种新型转子泵,由曲轴、转子组件、大缸体、小缸体、大端盖、小端盖、中间隔板及外齿轮组成；转子组件上安装有轴承、内齿圈、一体式边弧密封片、密封圈等部件；大、小缸体与端盖通过螺栓连接；所述转子的一部分安装于大缸体中,装有轴承内齿圈部分安装于小缸体中；曲轴贯穿整个缸体、转子安装。曲轴带动转子转动,转子在大缸体中做周期性运动实现吸水、排水过程,这样即使转子端面有轻微漏水也不会影响到转子内轴承及齿轮的工作。该转子泵具有高扬程、高流量,结构简单,制作成本低,维修简便等优点。(The invention relates to a novel rotor pump, which consists of a crankshaft, a rotor assembly, a large cylinder body, a small cylinder body, a large end cover, a small end cover, a middle partition plate and an outer gear; the rotor component is provided with a bearing, an inner gear ring, an integrated side arc sealing sheet, a sealing ring and other parts; the large cylinder body and the small cylinder body are connected with the end cover through bolts; one part of the rotor is arranged in the large cylinder body, and the part provided with the bearing inner gear ring is arranged in the small cylinder body; the crankshaft is installed through the whole cylinder body and the rotor. The crankshaft drives the rotor to rotate, and the rotor periodically moves in the large cylinder body to realize the water absorption and drainage processes, so that the work of the rotor inner bearing and the gear cannot be influenced even if the end face of the rotor slightly leaks water. The rotor pump has the advantages of high lift, high flow, simple structure, low manufacturing cost, simple and convenient maintenance and the like.)

1. A novel rotor pump is characterized in that: the method comprises the following steps: the device comprises a crankshaft, a rotor assembly, a large cylinder body, a small cylinder body, a large end cover, a small end cover, a middle partition plate and an outer gear;

the middle partition plate is arranged on one side of the large cylinder body, and the small cylinder body is arranged on the middle partition plate;

the rotor assembly is installed in the small cylinder and the large cylinder;

the crankshaft is mounted in the rotor assembly;

the large end cover is arranged on the other side of the large cylinder body, the small end cover is arranged on the small cylinder body, and the external gear is arranged on the small end cover.

2. A new rotodynamic pump as defined in claim 1, wherein: the rotor assembly structure comprises a water drainage part and a transmission part;

the transmission part is positioned at one side of the drainage part;

the longitudinal section of the drainage part is triangular, and the longitudinal section of the transmission part is annular;

an inner gear ring and a bearing are arranged in the transmission part;

and an integrated edge arc sealing sheet and a sealing ring are arranged on two sides of the drainage part.

3. A new rotodynamic pump as defined in claim 1, wherein: the crankshaft has two eccentric positions which are symmetrically distributed at 180 degrees.

4. A new rotodynamic pump as defined in claim 1 or claim 2, wherein: the transmission part of the rotor assembly is arranged in the small cylinder body, and the drainage part is arranged in the large cylinder body.

5. A new rotodynamic pump as defined in claim 1, wherein: and a water discharge opening is formed in the center of the bottom of the small cylinder body.

6. A new rotodynamic pump as defined in claim 1, wherein: the longitudinal section of the integrated side arc sealing sheet is triangular, and the vertex angle is provided with an avoiding groove.

Technical Field

The invention relates to the field of pumps, in particular to a novel rotor pump.

Background

At present, in fluid conveying machinery commonly used in industry, a rotor water pump is popular among users with various advantages of compact structure, high rotating speed, low manufacturing cost, convenience in maintenance and the like. However, the conventional rotor water pump is limited by the disadvantages of small flow rate, low discharge pressure and the like, so that the conventional rotor water pump is only suitable for conveying small amounts of liquid and is mostly used as auxiliary equipment. In addition, another serious defect of the traditional rotor water pump is that the end face sealing difficulty is high, and the end face leaks in the working process of the rotor water pump, so that the bearing in the rotor is soaked, and the service life of the gear and the bearing is greatly reduced.

The invention aims to overcome the defects in the prior rotor water pump technology, and seeks to design and manufacture a novel rotor pump which has a simple and novel structure, high flow, high discharge pressure and prolonged service life of a rotor bearing.

Disclosure of Invention

To achieve the above object, the present invention provides a novel gerotor pump having a high flow rate, a high discharge pressure, and an increased service life of the gerotor bearing.

The technical scheme adopted by the invention is as follows:

a novel gerotor pump comprising: the device comprises a crankshaft, a rotor assembly, a large cylinder body, a small cylinder body, a large end cover, a small end cover, a middle partition plate and an outer gear;

the middle partition plate is arranged on one side of the large cylinder body, and the small cylinder body is arranged on the middle partition plate;

the rotor assembly is installed in the small cylinder and the large cylinder;

the crankshaft is mounted in the rotor assembly;

the large end cover is arranged on the other side of the large cylinder body, the small end cover is arranged on the small cylinder body, and the external gear is arranged on the small end cover;

the outer gear is provided with a bearing, and the bearing adopts a deep groove ball bearing; and a bearing is arranged at the central position of the large end cover.

Further, the rotor assembly structure comprises a water drainage part and a transmission part;

the transmission part is positioned at one side of the drainage part; the longitudinal section of the drainage part is triangular, and the longitudinal section of the transmission part is annular;

an inner gear ring and a bearing are arranged in the transmission part; and an integrated edge arc sealing sheet and a sealing ring are arranged on two sides of the drainage part.

Further, the rotor assembly is connected with the crankshaft through a bearing, and the bearing is a deep groove ball bearing; the rotor assembly comprises an inner gear ring, so that the transmission part of the rotor rotates in the small cylinder body and drives the water drainage part to do work, the transmission part rotates around a crankshaft in the small cylinder body, and meanwhile, the rotor rotates around the centroid of the rotor.

Further, the rotor assembly consists of a drainage part and a transmission part, the longitudinal section of the drainage part is approximately triangular, the longitudinal section of the transmission part is annular, and an inner gear ring and a bearing are arranged on the transmission part; and sealing rings are arranged on two sides of the drainage part.

Furthermore, the transmission part is arranged in the small cylinder body, and the drainage part is arranged in the large cylinder body, so that the bearing and the inner gear ring on the rotor assembly and the conveying fluid are respectively arranged in the large cylinder body and the small cylinder body, liquid is prevented from entering the bearing, and the service life of the bearing is prolonged.

Further, the bent axle adopts round steel machining preparation, the bent axle has big, little two parts off-centre, and the eccentric position is 180 degrees symmetric distributions, and the eccentricity is all 12 mm. The rotor assembly is arranged at a large eccentric position, and the small eccentric structure is arranged to realize the concentricity of the two ends of the crankshaft.

Furthermore, the profile of the longitudinal section of the integrated side-arc sealing sheet is approximately triangular, and an avoidance groove is respectively arranged at each of the three vertex angles. An annular sealing ring is formed in the integrated edge arc sealing sheet, so that the reliability of end face sealing is improved, and the conveying flow of the rotor water pump is improved.

Furthermore, a water discharge opening is formed in the center of the bottom of the small cylinder body, so that the solution can be conveniently discharged out of the pump body. The bottom of the large cylinder body is provided with a supporting seat.

Furthermore, the longitudinal section of the integrated side-arc sealing piece is approximately triangular, and an avoidance groove is respectively arranged at each of the three vertex angles.

Furthermore, the large end cover and the small end cover are provided with reinforcing ribs on one surface, and the roughness of the other surface reaches 0.8.

The implementation of the invention has the beneficial effects that:

1. compared with the traditional rotor pump, the invention has the advantages of compact structure, large flow, high discharge pressure and wide application range.

2. The invention realizes that the rotor inner bearing, the inner gear ring and the liquid are respectively arranged in different cylinder bodies, reduces the possibility that the liquid flows into the bearing due to the sealing failure of the end face of the rotor, and prolongs the service life of the bearing and the gear.

3. The invention has simple structure, low cost and convenient assembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for a customer of ordinary skill in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a partial cross-sectional view of an eccentric rotor water pump according to the present invention;

FIG. 2 is a three-dimensional structural view of the eccentric rotor water pump of the present invention;

FIG. 3 is a three-dimensional block diagram of a rotor assembly of the present invention;

FIG. 4 is a cross-sectional view of a rotor assembly of the present invention;

FIG. 5 is a three-dimensional block diagram of the crankshaft of the present invention;

FIG. 6 is a three-dimensional block diagram of the integrated edge-arc sealing piece of the present invention;

in the figure: 1. the rotor comprises a large end cover, a rotor assembly 2, a middle partition plate 3, a large cylinder body 4, a small cylinder body 5, a small end cover 6, an external gear 7, a crankshaft 8, a bearing 9, a sealing ring 10, an internal gear ring 11, a rotor 12 and an integrated side arc sealing piece 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further described below with reference to the accompanying drawings.

In a specific embodiment of the present invention, see fig. 1-6, an eccentric rotor water pump comprises: the rotor comprises a large end cover 1, a rotor assembly 2, a middle partition plate 3, a large cylinder 4, a small cylinder 5, a small end cover 6, an external gear 7 and a crankshaft 8; the rotor assembly 2 in fig. 1 is composed of a bearing 9, a sealing ring 10, an inner gear ring 11, a rotor 12 and an integrated edge arc sealing sheet 13. Firstly, assembling a bearing 9, a sealing ring 10, an inner gear ring 11, a rotor 12 and an integrated edge arc sealing sheet 13 into a rotor assembly 2, then assembling the rotor assembly 2 and a crankshaft 8 through the bearing and then placing the assembled rotor assembly and the crankshaft 8 into a large cylinder body 4, then installing a large end cover 1 and a middle partition plate 3, and connecting the large end cover 1, the large cylinder body 4 and the middle partition plate 3 through bolts; then, assembling the small end cover 6 and the external gear 7 through bolts; and finally, connecting the assembled small end cover 6 and the external gear 7 to the small cylinder body 5 through bolts.

In the embodiment of the present invention, see fig. 1-6, the operation of the eccentric rotor water pump of the present invention is as follows: one end of the crankshaft 8 is connected with driving equipment such as a motor, the driving equipment such as the motor drives the crankshaft 8 to rotate, the large eccentric part of the crankshaft 8 drives the rotor assembly 2 to rotate, and meanwhile, the inner gear ring 11 on the transmission part of the rotor assembly 2 and the outer gear 7 fixed on the small cylinder body 5 are in meshing motion, so that the rotor assembly 2 rotates around the center of the crankshaft 8 and simultaneously rotates around the center of the rotor. Similarly, the water discharging part of the rotor assembly 2 moves in the large cylinder 4 in the same way as the power transmission part, so that the conveyed liquid is separated from wearing parts such as a bearing 9 and a gear 11 of the water pump, and in the working process of the rotor water pump, the integrated side arc sealing sheet 13 and the sealing ring 10 on the rotor assembly 2 can be well sealed at the end face. And even if the end face sealing fails to cause liquid leakage in the large cylinder body 4, water can be discharged out of the eccentric rotor water pump only through the bottom water outlet of the small cylinder body 5, and the normal work of a bearing and a gear on the rotor cannot be influenced, so that the service life of the eccentric rotor water pump is prolonged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.