RU2284424C1 - Internal gearing rotary machine - Google Patents

Internal gearing rotary machine Download PDF

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Publication number
RU2284424C1
RU2284424C1 RU2005132029/06A RU2005132029A RU2284424C1 RU 2284424 C1 RU2284424 C1 RU 2284424C1 RU 2005132029/06 A RU2005132029/06 A RU 2005132029/06A RU 2005132029 A RU2005132029 A RU 2005132029A RU 2284424 C1 RU2284424 C1 RU 2284424C1
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RU
Russia
Prior art keywords
rotor
teeth
disks
cylindrical
internal
Prior art date
Application number
RU2005132029/06A
Other languages
Russian (ru)
Inventor
тов Иван Соломонович П (RU)
Иван Соломонович Пятов
Олег Михайлович Перельман (RU)
Олег Михайлович Перельман
Александр Исаакович Рабинович (RU)
Александр Исаакович Рабинович
Михаил Юрьевич Мельников (RU)
Михаил Юрьевич Мельников
Олег Евгеньевич Иванов (RU)
Олег Евгеньевич Иванов
Павел Борисович Куприн (RU)
Павел Борисович Куприн
Геннадий Леонидович Дорогокупец (RU)
Геннадий Леонидович Дорогокупец
Анатолий Васильевич Сергиенко (RU)
Анатолий Васильевич Сергиенко
Юрий Дмитриевич Кожевников (RU)
Юрий Дмитриевич Кожевников
Original Assignee
Иван Соломонович Пятов
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Publication date
Application filed by Иван Соломонович Пятов filed Critical Иван Соломонович Пятов
Priority to RU2005132029/06A priority Critical patent/RU2284424C1/en
Application granted granted Critical
Publication of RU2284424C1 publication Critical patent/RU2284424C1/en

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Abstract

FIELD: mechanical engineering; volume displacement hydraulic machines.
SUBSTANCE: invention relates to hydraulic pumps and engines with internal gearing of rotors, particularly, to their multiphase application. Proposed internal gearing rotary machine has housing with cylindrical space and working medium suction and delivery channels, end face covers, external rotor with internal teeth and working ports in tooth spaces and internal rotor with external teeth installed with eccentricity inside external rotor and rigidly secured on shaft. Suction and delivery chambers are formed between teeth and tooth spaces of both rotors. Ring end face disks are installed between end face covers and end facers of internal and external rotors adjoining end faces of internal rotors for rotation around axis of rotation of external rotor. External rotor is made split with replaceable teeth rigidly coupled with both end face disks to form squirrel cage. End face disks are rigidly secured on external rotor and are provided with axial cavities in peripheral zone uniformly spaced over circumference coaxial with external rotor and limited by two cylindrical surfaces of different curvature forming, at intersection, longitudinal recesses over entire depth of cavities. Surface of each replaceable tooth in contact with housing space is made cylindrical for engagement with the latter and rotating inside. Surface of both end faces of replaceable tooth is limited by two cylindrical surfaces of different curvature forming, and intersection, two longitudinal ribs and made for mating with cavities of both end face disks and arrangement inside them. Longitudinal ribs are arranged inside longitudinal recesses.
EFFECT: improved reliability and increased service life of rotary machine operating in different media, even those abrasive inclusions.
6 cl, 7 dwg

Description

The invention relates to the field of mechanical engineering, in particular to volume displacement hydraulic machines, namely to pumps and hydraulic motors with internal gearing of rotors, and in particular to their multi-phase design.
Known rotor machine with internal gearing, comprising a housing with a cylindrical cavity and channels for suction and discharge of the working medium, closed on both sides by end caps, an external rotor coaxially placed in the cavity of the housing with internal teeth and working windows in the cavities of its teeth and installed inside it with an eccentricity an internal rotor with external teeth rigidly fixed to the shaft with the formation between the teeth and troughs of both rotors of the suction chamber and the discharge chamber, respectively communicated with suction and discharge channels. In this case, ring end disks are installed between the end caps and the ends of the outer rotor, adjacent to the ends of the outer and inner rotors on both sides, coaxial with the outer rotor and capable of rotation around the axis of rotation of the latter (SU 1714164 A2, 09/22/1987, F 01 C 1 /fourteen). This machine is adopted as a prototype. In said rotary machine, liquid sealing shutters are provided that prevent the fluid from flowing through the gap between the end caps and the housing from the discharge zone to the suction zone, as well as through the gap between the external rotor and the housing, which results in an increase in the machine's efficiency. However, when working with media including abrasive inclusions, the provided gap sealing system fails, the machine’s efficiency decreases, while the reliability and durability of the machine are reduced due to “dry” friction in its elements.
The objective of the technical solution is to increase the reliability and durability of the rotor machine when operating it on working media with abrasive inclusions by reducing the relative sliding speed of the contacting surfaces of the end disks and ends of both rotors, and therefore, reducing their wear, and also increasing the efficiency of the machine by reducing leakages working environment when using polymeric materials to cover the contacting surfaces of both rotors. In addition, the objective of the invention is to facilitate the maintainability of the machine by replacing one tooth in a detachable external rotor, instead of replacing the entire rotor, and also to reduce the cost of this repair.
To solve the problem with the achievement of the claimed technical result in a known rotary machine with internal gearing, comprising a housing with a cylindrical cavity and channels for suction and discharge of the working medium, closed on both sides by end caps, an external rotor coaxially placed in the cavity of the housing with internal teeth and working windows in the cavities of its teeth and the internal rotor with external teeth mounted inside it with eccentricity, rigidly fixed to the shaft, while between the teeth and the cavities and suction and discharge chambers are formed on both rotors and connected respectively to the suction and discharge channels, and annular end disks are installed between the end caps and the ends of the external and internal rotors, adjacent to the ends of the latter rotatably around the axis of rotation of the external rotor, according to the invention, the external rotor is made detachable, and its teeth are interchangeable, rigidly connected with both end disks with the formation of a "squirrel wheel", and the end disks are rigidly fixed to the external rotor and provided in the peripheral zone with axial recesses evenly spaced around the circumference, coaxial with the external rotor, and bounded by two cylindrical surfaces of different curvature, forming longitudinal recesses along the entire depth of the recesses when they intersect, the surface of each removable tooth in contact with the body cavity is made cylindrical with the possibility of pairing with the latter and rotation inside it, the surface of both ends of the removable tooth is limited to two cylindrical surfaces of different curvature, uyuschimi at their crossing the two longitudinal ribs, and is configured to mate with the recesses of both end disks and placing them inside, longitudinal ribs are arranged inside the longitudinal grooves.
The cylindrical surface of the recesses in the disks and the end parts of the replaceable teeth, the farthest from the axis of rotation of the outer rotor, can be made with less curvature.
Interchangeable teeth of the outer rotor in the working contact area with the teeth of the inner rotor can be made with an elastic elastic polymer coating around the perimeter of their cross section.
The outer surface of the polymer coating of the replaceable teeth of the outer rotor, located on the abutment side of the cylindrical cavity of the housing, can be provided with longitudinal protrusions made with sharp radially spaced vertices, and placed on the side of the contact working surface of engagement with the inner rotor with longitudinal protrusions with flat radially located tops and wider base of protrusions.
Each end disk can be made detachable and consists of two coaxial parts interconnected along a cylindrical surface, the inside of which is provided with recesses, and the points of intersection of the edges of the end parts of each removable tooth with a plane perpendicular to the axis of the rotor can be placed on the interface line of two parts of the disk.
A rigid connection of the replaceable teeth of the outer rotor with both end disks can be made by means of threaded elements placed on the symmetry axes of each tooth of this rotor, preferably at the mid-height of its tooth.
The invention is illustrated by drawings.
Figure 1 schematically shows a longitudinal section of the proposed rotary machine.
Figure 2 is a cross section of the proposed rotary machine through both rotors in the area of the threaded elements.
Figure 3 shows a longitudinal section of a rotary machine in the area of the threaded connection with threaded elements placed on the symmetry axes of each tooth of the external rotor.
Figure 4 shows a General view of a removable tooth with a cut in the installation area of the threaded element.
Figure 5 shows a side view of the end face of a removable tooth of the outer rotor.
Figure 6 enlarged shows a cross section of a removable tooth in a contact working area.
Figure 7 shows the end disk, a view of the recesses for interchangeable teeth from the rotors.
The rotary machine contains a housing 1 with a cylindrical cavity 2 and channels 3 of the suction and 4 discharge of the working medium, closed from the sides by end caps 5.
The rotary assembly of the machine consists of an external detachable rotor 6, coaxially placed inside the cavity 2, provided with internal interchangeable teeth 7, and from an internal rotor 8 with external teeth 9, mounted inside the external rotor 6 with an eccentricity "e" between the axes 10 and 11 of rotation of the external rotor 6 and the inner rotor 8, respectively. The inner rotor 8 is rigidly connected to the shaft 12 by means of, for example, a key 13.
The outer rotor is made with through windows 14 located in the cavities of its teeth 7. The teeth 9 of the inner rotor 8 are made entering the cavities of the teeth 7 of the outer rotor 6 on one side and are in close contact with the heads of the teeth 7 of the outer rotor in a place diametrically opposite to the place of engagement with the cavities teeth 7 on the other hand, with the formation of the suction chamber 15 and the discharge chamber 16. The number of teeth 7 of the outer rotor 6 exceeds the number of teeth 9 of the inner rotor 8 per unit.
To both ends 17 and 18 of the outer rotor 6 and to both ends 19 and 20 of the inner rotor 8, ring disks 21 and 22 adjacent to the outer rotor are adjacent with a gap of 0.05 mm, the first of which is rigidly connected to the end face 17, and the second with the end face 18 of the outer rotor 6 with the formation of a single rotation part. A rigid connection of the disk with the external rotor 6 can be performed by means of individual threaded elements, for example, studs 23, located on the symmetry axes 24 of each removable tooth 7.
The working contact surface of both rotors or each of them can be made with an elastic elastic polymer coating 25, and the outer surface of the polymer elastic elastic coating of removable teeth is provided with longitudinal protrusions 26 made with sharp peaks 27 from the side adjacent to the cylindrical cavity 2 of the housing 1, and with gently sloping peaks 27 and a wider base of protrusions from the side of the contact working surface of engagement with the inner rotor. Replaceable teeth 7 of the outer rotor are rigidly connected to both end disks 21 and 22 with the formation of a "squirrel wheel" and do not change their location during operation. Each end disk 21 and 22 is made detachable and consists of two coaxial, interconnected parts. The outer part 29 of each disk is adjacent to the cylindrical surface 2 of the housing 1, and the inner main part of the disk is equipped with through cylindrical recesses 28 arranged uniformly around a circumference coaxial with the external rotor. Each recess 28 is bounded by two cylindrical surfaces 30 and 31 of different curvature, forming when intersecting two side axial recesses 32 and 33 along the entire width of the disk, the cylindrical surface 30 with the lesser curvature being farthest from the axis of rotation 10 of the outer rotor, and the surface 31 with greater curvature is located closer to the axis of rotation of the rotor 10. The surfaces of both end parts of each removable tooth are also limited by two cylindrical surfaces 34 with a smaller and 35 with a greater curvature, forming two longitudinal ribs 36 and 37 when they intersect and configured to interface with the recesses 28 in both end disks and placed inside these recesses, including the placement of the ribs 36 and 37 inside the recesses 32 and 33, respectively, while the ribs 36 and 37 of the end parts of the teeth 7 and the adjacent recesses 32 and 33 of the recesses 28 are placed on the interface line of both parts of each disk. The working surface 39 of the interchangeable tooth 7 in contact with the internal rotor is made to engage with this rotor. The surface 40 of the removable tooth 7, in contact with the cavity 2 of the housing 1, is made cylindrical with the possibility of pairing with this cavity and rotation inside it.
An internal gear rotary machine can operate both in pump mode and in hydraulic motor mode. When operating in the hydraulic motor mode, the working fluid is supplied under pressure to the expanding chambers 15 and drives the rotary assembly with its rotors: first, the outer rotor 6 is driven around its axis, and then, by means of the internal engagement of the rotor teeth, the shaft 12 is rotated. this volume of the working chambers 16 is reduced and the working fluid is displaced from them.
The implementation of the annular end disks 21 and 22, with their entire flat annular surface adjacent to both ends of the outer and inner rotors throughout the entire thickness "c" of this annular surface, reduces leakage by eliminating gaps and sealing the working chambers 15 and 16, increasing the efficiency cars.
When the machine is in pump mode, the shaft 12, which in this case is a drive shaft, drives the inner rotor 8, which, by engaging its teeth 9 with the teeth 7 of the outer rotor, rotates the latter. When the rotors of the rotary assembly rotate, the working fluid enters the suction chamber 15, the working volume of which expands, and then is displaced from the discharge chamber 16, the volume of which is reduced, to the consumer.
Due to the optimization of the thickness size of the flat annular surface of the end disk and the mating of the abutment surfaces of the disks with the ends of both rotors of the rotational assembly, as well as due to the presence of an elastic elastic polymer coating of the working contact surfaces of the engagement of the rotors, including by performing longitudinal projections with sharp peaks on the outer surface of the polymer coating from the side adjacent to the cylindrical cavity of the casing and with gently sloping peaks and a wider base on the contact side and with an internal rotor, seal is achieved working surfaces and sealing of the suction and discharge chambers and hence increases the machine efficiency even when operating at its working media containing abrasive particles. Using the proposed machine will improve the maintainability of the machine and reduce the cost of repairs due to the implementation of an external rotor detachable, and its teeth are replaceable, which is very important in conditions of work on abrasive media. Improving the reliability of the machine and durability is achieved by reducing the relative speeds of the end surfaces of the rotors relative to the flat annular surfaces of the disks. This is facilitated by the reliable installation of the ends of the replaceable teeth in the recesses of the discs due to the locking of the mating ribs of the ends of these teeth with the side recesses in the recesses of the disks.

Claims (6)

1. A rotor machine with internal gearing, comprising a body with a cylindrical cavity and channels for suction and discharge of the working medium, closed with end caps on both sides, an external rotor coaxially placed in the body cavity with internal teeth and working windows in the cavities of its teeth and installed inside it with the eccentricity of the internal rotor with external teeth, rigidly fixed to the shaft, while between the teeth and the hollows of both rotors are formed suction and discharge chambers, respectively communicated with the suction annular end disks adjacent to the ends of the latter rotatably around the axis of rotation of the outer rotor, characterized in that the outer rotor is detachable and its teeth are interchangeable, rigidly connected with both end disks with the formation of a "squirrel wheel", and the end disks are rigidly fixed to the external rotor and are provided in the peripheral zone with axial recesses uniformly spaced around the circumference, coax with an external rotor and limited by two cylindrical surfaces of different curvature, forming longitudinal recesses along the entire depth of the recesses when they intersect, the surface of each interchangeable tooth in contact with the cavity of the body is cylindrical with the possibility of interfacing with the latter and rotation inside it, the surface of both ends of the interchangeable tooth bounded by two cylindrical surfaces of different curvature, forming when they intersect two longitudinal ribs and made with the possibility of pairing with a recess and two end disks and placing them inside, longitudinal ribs placed inside the longitudinal grooves.
2. The machine according to claim 1, characterized in that the cylindrical surface of the recesses in the disks and the end parts of the replaceable teeth, the most remote from the axis of rotation of the outer rotor, is made with less curvature.
3. The machine according to claim 1, characterized in that the interchangeable teeth of the outer rotor in the working contact area with the teeth of the inner rotor are made with an elastic elastic polymer coating around the perimeter of their cross section.
4. The machine of claim 3, characterized in that the outer surface of the polymer coating of interchangeable teeth of the outer rotor, located on the abutment side of the cylindrical cavity of the housing, is provided with longitudinal protrusions made with sharp radially spaced vertices, and placed on the side of the contact working surface of engagement with the inner rotor - with longitudinal protrusions with gentle radially spaced vertices and a larger width of the base of the protrusions.
5. The machine according to claim 1, characterized in that each end disk is detachable and consists of two coaxial parts interconnected along a cylindrical surface, the inside of which is provided with recesses, the intersection points of the edges of the end parts of each removable tooth with a plane perpendicular rotor axis, placed on the interface line of the two parts of the disk.
6. The machine according to claim 1, characterized in that the rigid connection of the removable teeth of the outer rotor with both end disks is made by threaded elements placed on the symmetry axes of each tooth of this rotor, preferably at the mid-height of its tooth.
RU2005132029/06A 2005-10-18 2005-10-18 Internal gearing rotary machine RU2284424C1 (en)

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Application Number Priority Date Filing Date Title
RU2005132029/06A RU2284424C1 (en) 2005-10-18 2005-10-18 Internal gearing rotary machine

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG66143B1 (en) * 2008-01-30 2011-07-29 Огнян АЛИПИЕВ Internal gearing hydromachine
US10294936B2 (en) 2014-04-22 2019-05-21 Project Phoenix, Llc. Fluid delivery system with a shaft having a through-passage
US10465721B2 (en) 2014-03-25 2019-11-05 Project Phoenix, LLC System to pump fluid and control thereof
US10539134B2 (en) 2014-10-06 2020-01-21 Project Phoenix, LLC Linear actuator assembly and system
US10544810B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Linear actuator assembly and system
US10544861B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10598176B2 (en) 2014-07-22 2020-03-24 Project Phoenix, LLC External gear pump integrated with two independently driven prime movers
US10677352B2 (en) 2014-10-20 2020-06-09 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10808732B2 (en) 2014-09-23 2020-10-20 Project Phoenix, LLC System to pump fluid and control thereof
US10865788B2 (en) 2015-09-02 2020-12-15 Project Phoenix, LLC System to pump fluid and control thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG66143B1 (en) * 2008-01-30 2011-07-29 Огнян АЛИПИЕВ Internal gearing hydromachine
US10465721B2 (en) 2014-03-25 2019-11-05 Project Phoenix, LLC System to pump fluid and control thereof
US10294936B2 (en) 2014-04-22 2019-05-21 Project Phoenix, Llc. Fluid delivery system with a shaft having a through-passage
US10544810B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Linear actuator assembly and system
US10544861B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10738799B2 (en) 2014-06-02 2020-08-11 Project Phoenix, LLC Linear actuator assembly and system
US10598176B2 (en) 2014-07-22 2020-03-24 Project Phoenix, LLC External gear pump integrated with two independently driven prime movers
US10808732B2 (en) 2014-09-23 2020-10-20 Project Phoenix, LLC System to pump fluid and control thereof
US10539134B2 (en) 2014-10-06 2020-01-21 Project Phoenix, LLC Linear actuator assembly and system
US10677352B2 (en) 2014-10-20 2020-06-09 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10865788B2 (en) 2015-09-02 2020-12-15 Project Phoenix, LLC System to pump fluid and control thereof

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