Integrated electro-hydraulic motor pump

Abstract

The utility model discloses an integrated electro-hydraulic motor pump which comprises a motor assembly, a motor shaft, a gear oil pump, an electric control shell, a rotating speed sensor and a pressure sensor, and the motor assembly comprises a stator assembly and a rotor assembly; the number of the motor shafts is two, and the two motor shafts are symmetrically arranged in the rotor assembly. The number of the gear oil pumps is two, each gear oil pump corresponds to one motor shaft, and the gear oil pumps are arranged at one ends of the motor shafts. An electric control assembly is arranged in the electric control shell, and the electric control assembly is arranged between the electric control shell and the motor assembly; the rotating speed sensor is arranged at one end of the motor shaft close to the gear oil pump. The pressure sensor is integrated on the gear oil pump. According to the electro-hydraulic motor pump, the motor assembly, the motor shaft, the gear oil pump, the rotating speed sensor and the pressure sensor are all integrated in the electric control shell, so that the electro-hydraulic motor pump is compact in structure, and hydraulic pipelines can be reasonably arranged in a limited installation space. The device is simple in structure, convenient to mount and dismount, low in cost and capable of realizing mass production.

Description

Technical Field

[0001] This utility model relates to an integrated electro-hydraulic motor pump, belonging to the field of electro-hydraulic motor pump technology. Background Technology

[0002] With the rapid development of new energy sources, the installation requirements for electro-hydraulic motor pumps are becoming increasingly stringent. Not only is it necessary to rationally arrange multiple control components in various positions within a limited installation space, but it is also essential to rationally arrange hydraulic pipelines within that limited space. Existing electro-hydraulic motor pumps cannot be installed in compact spaces, nor can they be rationally arranged with hydraulic pipelines. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated electro-hydraulic motor pump with a compact structure that can reasonably arrange hydraulic pipelines in a limited space.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:

[0005] An integrated electro-hydraulic motor pump includes a motor assembly, a motor shaft, a gear oil pump, an electronic control housing, a speed sensor, and a pressure sensor. The motor assembly includes a stator assembly and a rotor assembly. Two motor shafts are symmetrically arranged within the rotor assembly. Two gear oil pumps are provided, each corresponding to one motor shaft, and each gear oil pump is located at one end of a motor shaft. An electronic control assembly is housed inside the electronic control housing, positioned between the housing and the motor assembly. The speed sensor is located at the end of the motor shaft near the gear oil pump and is used to detect at least the rotational speed of the motor shaft. The pressure sensor is integrated onto the gear oil pump.

[0006] Furthermore, one end of the motor shaft is connected to the rotor assembly via a bearing, and the other end of the motor shaft is connected to the gear oil pump via a spline.

[0007] Furthermore, a rear cover plate is provided at the opposite ends of the two motor shafts, and the rear cover plate is used to protect the motor shafts at least.

[0008] Furthermore, both speed sensors are located inside the rear cover plate.

[0009] Furthermore, the pressure sensor is equipped with a sealing ring and a retaining ring.

[0010] Furthermore, the retaining ring is a plastic retaining ring.

[0011] Compared with the prior art, the advantages of this utility model include:

[0012] 1) This utility model provides an integrated electro-hydraulic motor pump, which integrates the motor assembly, motor shaft, gear oil pump, speed sensor, and pressure sensor inside the electrical control housing, making the electro-hydraulic motor pump compact and allowing for reasonable arrangement of hydraulic pipelines within limited installation space. This utility model has a simple structure, is easy to install and disassemble, has low cost, and can be mass-produced.

[0013] 2) The present invention provides an integrated electro-hydraulic motor pump, in order to protect the pressure sensor, a sealing ring and a retaining ring are provided on the pressure sensor to prevent the pressure sensor from being affected by the external environment and improve the accuracy of the pressure sensor. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the internal structure of an integrated electro-hydraulic motor pump provided in a typical embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of an integrated electro-hydraulic motor pump provided in a typical embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the position of the pressure sensor provided in a typical embodiment of this utility model;

[0018] Explanation of reference numerals in the attached diagram: 1. Gear oil pump; 2. Motor assembly; 3. Electrical control assembly; 4. Speed ​​sensor; 5. Motor shaft; 6. Electrical control housing; 7. Rear cover plate; 8. Pressure sensor. Detailed Implementation

[0019] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0020] like Figure 1 , Figure 3As shown, this utility model discloses an integrated electro-hydraulic motor pump, including a motor assembly 2, a motor shaft 5, a gear oil pump 1, an electronic control housing 6, a speed sensor 4, and a pressure sensor 8. The motor assembly 2 includes a stator assembly and a rotor assembly. Two motor shafts 5 are provided, symmetrically arranged within the rotor assembly. Two gear oil pumps 1 are provided, each corresponding to one motor shaft 5, and each gear oil pump 1 is located at one end of a motor shaft 5. Specifically, one end of the motor shaft 5 is connected to the rotor assembly via a bearing, and the other end of the motor shaft 5 is connected to the gear oil pump 1 via a spline. The stop of the gear oil pump 1 mates with the electronic components. The pump body of the gear oil pump 1 has mounting holes, and the pressure sensor 8 is installed in the mounting holes of the gear oil pump 1.

[0021] An electronic control assembly 3 is housed inside the electronic control housing 6. The electronic control assembly 3 includes a controller, and the speed sensor 4 and pressure sensor 8 are electrically connected to the controller. The electronic control assembly 3 is disposed between the electronic control housing 6 and the motor assembly 2. The speed sensor 4 is disposed at one end of the motor shaft 5 near the gear oil pump 1, and the speed sensor 4 is used to detect at least the rotational speed of the motor shaft 5. The pressure sensor 8 is integrated into the gear oil pump 1.

[0022] This invention integrates the motor assembly 2, motor shaft 5, gear oil pump 1, speed sensor 4, and pressure sensor 8 all within the electrical control housing 6, resulting in a compact electro-hydraulic motor pump structure and allowing for efficient arrangement of hydraulic lines within limited installation space. This invention features a simple structure, convenient installation and disassembly, low cost, and is suitable for mass production.

[0023] In some implementation cases, such as Figure 2 As shown, the two motor shafts 5 are provided with rear cover plates 7 at their opposite ends. The rear cover plates 7 are used to protect the motor shafts 5 and prevent dust, impurities and other contaminants from entering the motor shafts 5 and affecting their normal operation.

[0024] Based on the above, both speed sensors 4 are located inside the rear cover plate 7. On the one hand, the rear cover can protect the speed sensors 4 and prevent dust and impurities from affecting the accuracy of the speed sensors 4. On the other hand, the location of the speed sensors 4 inside the rear cover can reduce the size of the hydraulic motor pump.

[0025] In some implementations, the pressure sensor 8 is provided with a sealing ring and a retaining ring. In this implementation, the sealing ring includes an O-ring. The pressure sensor 8 is sealed by the sealing ring and the retaining ring to prevent the pressure sensor 8 from being affected by the external environment and to improve the accuracy of the pressure sensor 8.

[0026] Preferably, the retaining ring is a plastic retaining ring, which is used to protect the sealing ring, prevent the sealing ring from deforming during use, and extend the service life of the sealing ring, that is, extend the service life of the pressure sensor 8.

[0027] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. An integrated electro-hydraulic motor pump characterized by: Comprising A motor assembly (2) comprising a stator assembly and a rotor assembly; Two motor shafts (5) symmetrically arranged in the rotor assembly; Two gear oil pumps (1), each corresponding to one motor shaft (5), arranged at one end of the motor shaft (5); An electric control housing (6) internally provided with an electric control assembly (3), arranged between the electric control housing (6) and the motor assembly (2); A rotating speed sensor (4) arranged at one end of the motor shaft (5) close to the gear oil pump (1), used at least for detecting the rotating speed of the motor shaft (5); A pressure sensor (8) integrated on the gear oil pump (1).

2. An integrated electro-hydraulic motor pump as claimed in claim 1, characterized in that: One end of the motor shaft (5) is connected with the rotor assembly through a bearing, and the other end of the motor shaft (5) is connected with the gear oil pump (1) through a spline.

3. An integrated electro-hydraulic motor pump as claimed in claim 1, wherein: The opposite ends of the two motor shafts (5) are provided with rear cover cover plates (7), which are used at least for protecting the motor shafts (5).

4. An integrated electro-hydraulic motor pump as claimed in claim 3, characterized in that: The two rotating speed sensors (4) are arranged inside the rear cover cover plates (7).

5. An integrated electro-hydraulic motor pump as claimed in claim 3, wherein: The pressure sensor (8) is provided with a sealing ring and a retaining ring.

6. An integrated electro-hydraulic motor pump as claimed in claim 5, characterized in that: The retaining ring is a plastic retaining ring.

Images