阅读说明：本技术 出口集成插装阀的内啮合齿轮式液压电机泵 (Internal gear type hydraulic motor pump with integrated cartridge valve at outlet ) 是由 冀宏 孙飞 张贺 陈乾鹏 赵晶 张建军 郑直 于 2019-11-22 设计创作，主要内容包括：出口集成插装阀的内啮合齿轮式液压电机泵,包括壳体(1)、泵芯座(2)、出油口集成盖(3)、测压口螺堵(7)、测温口螺堵(8)、内啮合齿轮组(9)、密封圈(10)、轴承(11)、后端盖(12)、内端盖(13)、密封圈(14)、轴承(15)、主轴(16)、转子(17)、定子(18)、接线盒(19),安全阀(4)、加载阀(5)、换向阀(6)安装在出油口集成盖(3)上,并由螺钉固定在壳体(1)上,主轴(16)为带孔板离心泵的中空型复合轴,与转子(17)压装成一体后,由轴承(11)和轴承(15)分别支撑在壳体(1)和内端盖(13)上,主轴(16)两侧设有密封圈(10)和密封圈(14)。(An internal gear type hydraulic motor pump with an outlet integrated cartridge valve comprises a shell (1), a pump core seat (2), an oil outlet integrated cover (3), a pressure measuring port plug (7), a temperature measuring port plug (8), an internal gear set (9), a sealing ring (10), a bearing (11), a rear end cover (12), an inner end cover (13), a sealing ring (14), a bearing (15), a main shaft (16), a rotor (17), a stator (18) and a junction box (19), wherein a safety valve (4), a loading valve (5) and a reversing valve (6) are arranged on the oil outlet integrated cover (3), and is fixed on the shell (1) by screws, the main shaft (16) is a hollow composite shaft of the centrifugal pump with the pore plate, after being pressed and integrated with the rotor (17), the rotor is respectively supported on the shell (1) and the inner end cover (13) by a bearing (11) and a bearing (15), and a sealing ring (10) and a sealing ring (14) are arranged on two sides of the main shaft (16).)

1. An internal gear type hydraulic motor pump with an outlet integrated cartridge valve comprises a shell (1), a pump core seat (2), an oil outlet integrated cover (3), a safety valve (4), a loading valve (5), a reversing valve (6), a pressure measuring port plug (7), a temperature measuring port plug (8), an internal gear set (9), a first sealing ring (10), a first bearing (11), a rear end cover (12), an inner end cover (13), a second sealing ring (14), a second bearing (15), a main shaft (16), a rotor (17), a stator (18) and a junction box (19), and is characterized in that the safety valve (4), the loading valve (5) and the reversing valve (6) are installed on the oil outlet integrated cover (3) and are fixed on the shell (1) through screws, the main shaft (16) is a hollow composite shaft with a hole plate centrifugal pump, and is integrally pressed with the rotor (17), and is supported on the shell (1) and the inner end cover (13) through the first bearing (11) and the second bearing (15) respectively The two sides of the main shaft (16) are provided with a first sealing ring (10) and a second sealing ring (14).

2. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: the oil-out integrated cover (3) is provided with a safety valve hole (3 a), a loading valve hole (3 b), a reversing valve hole (3 c), a pressure measuring hole (3 d), a temperature measuring hole (3 e), a pressure relief groove (3 f), a gear pump oil discharge hole (3 g) and a positioning pin hole (3 h), and is provided with a first internal flow channel (I), a second internal flow channel (II), a third internal flow channel (III) and a fourth internal flow channel (VI), wherein the safety valve hole (3 a), the loading valve hole (3 b) and the reversing valve hole (3 c) are respectively communicated with the gear pump oil discharge hole (3 g), the first internal flow channel (I), the second internal flow channel (II) and the third internal flow channel (III) are connected in parallel and are respectively communicated with the fourth internal flow channel (IV).

3. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: the safety valve (4), the loading valve (5) and the reversing valve (6) are all plug-in hydraulic valves, wherein the safety valve (4) is an overflow valve.

4. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: an oil inlet (1 a), an exhaust hole (1 b) and an oil drainage port (1 c) are formed in the shell (1).

5. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: the first bearing (11) and the second bearing (15) are sliding bearings, roller bearings or magnetic suspension bearings.

6. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: the first sealing ring (10) and the second sealing ring (14) are in the types of contact type framework rubber sealing rings, or non-contact type sealing elements, or mechanical sealing structures.

7. The internal gear type hydraulic motor pump of the outlet integrated cartridge valve according to claim 1, characterized in that: the oil inlet (1 a) corresponds to a motor pump interface (S), the fourth inner flow channel (IV) corresponds to a fifth interface (T), the first flow channel (V) and the second flow channel (VI) correspond to the first interface (A) and the second interface (B) respectively, and the pressure measuring hole (3 d) and the temperature measuring hole (3 e) correspond to the third interface (M1) and the fourth interface (M2) respectively.

Technical Field

The invention relates to a hydraulic motor pump, in particular to an internal gear type hydraulic pressure of an outlet integrated cartridge valve

A motor pump.

Background

The hydraulic motor pump is used as a new development direction of hydraulic equipment, the silence, the energy conservation, the greenness and the compactness of the structure of the hydraulic motor pump become the focus of close attention of researchers, research teams at home and abroad carry out integrated design aiming at different types of hydraulic pumps and motors with different specifications, and a better practical effect is obtained.

Currently, the intellectualization of hydraulic elements becomes a research hotspot, and no report is found about the intellectualized integrated design of a hydraulic motor pump.

Disclosure of Invention

The invention aims to provide an internal gear type hydraulic motor pump with an outlet integrated cartridge valve.

The invention relates to an internal gear type hydraulic motor pump with an outlet integrated cartridge valve, which comprises a shell 1, a pump core seat 2, an oil outlet integrated cover 3, a safety valve 4, a loading valve 5, a reversing valve 6, a pressure measuring port plug 7, a temperature measuring port plug 8, an internal gear set 9, a first sealing ring 10, a first bearing 11, a rear end cover 12, an inner end cover 13, a second sealing ring 14, a second bearing 15, a main shaft 16, a rotor 17, a stator 18 and a junction box 19. The safety valve 4, the loading valve 5 and the reversing valve 6 are arranged on the oil outlet integrated cover 3 and are fixed on the shell 1 through screws, the main shaft 16 is a hollow composite shaft of a centrifugal pump with a pore plate and is supported on the shell 1 and the inner end cover 13 through a first bearing 11 and a second bearing 15 after being pressed and integrated with a rotor 17, and a first sealing ring 10 and a second sealing ring 14 are arranged on two sides of the main shaft 16.

The invention has the advantages that: the internal gear type hydraulic motor pump with the outlet integrated cartridge valve integrates the control valve at the outlet of the motor pump, saves a connecting pipeline, greatly simplifies a hydraulic system, reserves interfaces A, B, M1, M2 and the like, can be directly connected with related executive components and test components, and in the hydraulic system, the invention is a module with functionality, is plug-and-play, has more humanized design and provides a control module for an intelligent hydraulic motor pump.

Drawings

Fig. 1 is a schematic structural diagram of the present invention, fig. 2 is a front view of a housing 1, fig. 3 is a sectional view taken along a line a-a of fig. 2, fig. 4 is a sectional view taken along a line B-B of fig. 3, and fig. 5 is a symbol diagram of the present invention; reference numerals and corresponding names: the oil pump comprises a shell 1, an oil inlet 1a, an exhaust hole 1B, an oil drain port 1c, a pump core seat 2, an oil outlet integrated cover 3, a safety valve hole 3a, a loading valve hole 3B, a reversing valve hole 3c, a pressure measuring hole 3d, a temperature measuring hole 3e, a pressure relief groove 3f, a gear pump oil drain hole 3g, a positioning pin hole 3h, a safety valve 4, a loading valve 5, a reversing valve 6, a pressure measuring hole plug 7, a temperature measuring hole plug 8, an internal gear set 9, a first sealing ring 10, a first bearing 11, a rear end cover 12, an internal end cover 13, a second sealing ring 14, a second bearing 15, a main shaft 16, a rotor 17, a stator 18, a junction box 19, a first internal flow passage I, a second internal flow passage II, a third internal flow passage III, a fourth internal flow passage IV, a first flow passage V, a second flow passage VI, a first port A, a second port B, a third port M1 and a.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the invention relates to an internal gear type hydraulic motor pump with an outlet integrated cartridge valve, which comprises a shell 1, a pump core seat 2, an oil outlet integrated cover 3, a safety valve 4, a loading valve 5, a reversing valve 6, a pressure measuring port plug 7, a temperature measuring port plug 8, an internal gear set 9, a first sealing ring 10, a first bearing 11, a rear end cover 12, an inner end cover 13, a second sealing ring 14, a second bearing 15, a main shaft 16, a rotor 17, a stator 18 and a junction box 19. The safety valve 4, the loading valve 5 and the reversing valve 6 are arranged on the oil outlet integrated cover 3 and are fixed on the shell 1 through screws, the main shaft 16 is a hollow composite shaft of a centrifugal pump with a pore plate and is supported on the shell 1 and the inner end cover 13 through a first bearing 11 and a second bearing 15 after being pressed and integrated with a rotor 17, and a first sealing ring 10 and a second sealing ring 14 are arranged on two sides of the main shaft 16.

As shown in fig. 1 to 5, the oil outlet integrated cover 3 is provided with a safety valve hole 3a, a loading valve hole 3b, a reversing valve hole 3c, a pressure measuring hole 3d, a temperature measuring hole 3e, a pressure relief groove 3f, a gear pump oil discharge hole 3g and a positioning pin hole 3h, and is provided with a first internal flow channel I, a second internal flow channel II, a third internal flow channel III and a fourth internal flow channel VI, wherein the safety valve hole 3a, the loading valve hole 3b and the reversing valve hole 3c are respectively communicated with the gear pump oil discharge hole 3g, and the first internal flow channel I, the second internal flow channel II and the third internal flow channel III are connected in parallel and are respectively communicated with the fourth internal flow channel IV.

As shown in fig. 1 and 5, the safety valve 4, the loading valve 5 and the reversing valve 6 are all cartridge hydraulic valves, wherein the safety valve 4 is an overflow valve and is arranged at an outlet of the motor pump, and the loading valve and the reversing valve are selected according to different working conditions.

As shown in fig. 1, an oil inlet 1a, an exhaust hole 1b and an oil drain port 1c are provided on the housing 1.

As shown in fig. 1, the first bearing 11 and the second bearing 15 are sliding bearings, roller bearings, or magnetic suspension bearings.

As shown in fig. 1, the first seal ring 10 and the second seal ring 14 are of the type that are contact skeletal rubber seal rings, or non-contact seal rings, or mechanical seal structures.

As shown in fig. 1 to 5, the oil inlet 1a corresponds to a motor pump port S, the fourth inner flow channel IV corresponds to a fifth port T, the first flow channel V and the second flow channel VI correspond to a first port a and a second port B, respectively, and the pressure measuring hole 3d and the temperature measuring hole 3e correspond to a third port M1 and a fourth port M2, respectively. In practical application, the first interface A and the second interface B are directly connected with hydraulic actuating elements such as hydraulic cylinders, motors and the like, the third interface M1 and the fourth interface M2 are reserved ports, sensors are installed according to test requirements, and the sensors are plugged by using screws when the test is not needed.

As shown in fig. 1, an oil inlet 1a, an exhaust hole 1b and an oil drain port 1c are provided on the housing 1. Need annotate full fluid between the motor pump work, the inside air of discharge motor pump when the exhaust hole sets up the aim at oiling, the inside seepage fluid of draining port discharge motor pump avoids work or down time overlength, and seepage fluid oil level does not cross the motor air gap, causes motor pump efficiency to descend.

The working process of the invention is as follows: in the working process of the motor pump, the safety valve 4 plays a role in protection, when the pressure is abnormal, the pressure at the outlet of the motor pump is ensured to be constant, the overload operation of the motor pump is avoided, an oil suction cavity and an oil pressing cavity of the hydraulic oil cylinder are directly connected with the first interface A and the second interface B, the working state of the hydraulic oil cylinder is controlled through the reversing valve 6, when the reversing valve 6 is in a middle position, the motor pump runs in an idle state, when the reversing valve 6 works in a left position S1 or a right position S2, the motor pump runs in a load mode, and the loading valve 5 can be used for testing the load characteristic of the motor pump when the oil cylinder.