阅读说明：本技术 电控液压马达 (electric control hydraulic motor ) 是由 何阳民 于 2019-09-30 设计创作，主要内容包括：本申请提供一种电控液压马达,涉及液压马达技术领域。包括油缸体、转动输出组件、柱塞组件、插装阀、角度传感器及控制器。柱塞组件设置于油缸体,插装阀设置于油缸体用于与液压系统连通,角度传感器设置于转动输出组件,用于检测转动输出组件相对于油缸体转动的角度,插装阀和角度传感器分别与控制器电连接。控制器用于根据角度传感器的检测结果控制插装阀动作,以使柱塞组件驱动转动输出组件沿预设状态转动。通过控制器设定程序或逻辑运算控制插装阀动作,实现将高压油按工作顺序导入在工作段的工作油缸柱塞的工作腔内,柱塞组件与转动输出组件相互作用,驱动电控液压马达进行负载旋转。改善油缸结构复杂,尺寸要求精度高,机械加工难的问题。(The application provides an automatically controlled hydraulic motor relates to hydraulic motor technical field. The hydraulic control system comprises an oil cylinder body, a rotation output assembly, a plunger assembly, a cartridge valve, an angle sensor and a controller. The plunger assembly is arranged on the oil cylinder body, the cartridge valve is arranged on the oil cylinder body and is communicated with a hydraulic system, the angle sensor is arranged on the rotation output assembly and is used for detecting the rotation angle of the rotation output assembly relative to the oil cylinder body, and the cartridge valve and the angle sensor are respectively electrically connected with the controller. The controller is used for controlling the cartridge valve to act according to the detection result of the angle sensor so as to enable the plunger assembly to drive the rotation output assembly to rotate along the preset state. The operation of the cartridge valve is controlled by setting a program or logical operation of a controller, so that high-pressure oil is guided into a working cavity of a working oil cylinder plunger at a working section according to a working sequence, and a plunger assembly interacts with a rotation output assembly to drive an electric control hydraulic motor to rotate under load. The problems of complex structure, high dimensional requirement precision and difficult machining of the oil cylinder are solved.)

1. An electric control hydraulic motor is characterized by comprising an oil cylinder body, a rotation output assembly, a plunger assembly, a cartridge valve, an angle sensor and a controller;

The plunger assembly is arranged on the oil cylinder body, the cartridge valve is arranged on the oil cylinder body and used for being communicated with a hydraulic system, the angle sensor is arranged on the rotation output assembly and used for detecting the rotation angle of the rotation output assembly relative to the oil cylinder body, and the cartridge valve and the angle sensor are respectively and electrically connected with the controller;

The controller is used for controlling the cartridge valve to act according to the detection result of the angle sensor, so that the plunger assembly drives the rotation output assembly to rotate along a preset state.

2. The electrically controlled hydraulic motor according to claim 1, wherein the oil cylinder body includes an action surface, and plunger cylinders are uniformly arranged on the oil cylinder body perpendicular to the action surface;

The rotation output assembly comprises a turntable, the turntable comprises a guide rail surface matched with the action surface, and when the plunger assembly moves under the action of the hydraulic system, the plunger assembly can act on the guide rail surface.

3. the electrically controlled hydraulic motor according to claim 1, wherein the number of said plunger assemblies is 2N, and two of said plunger assemblies having their central axes on the same straight line form one group;

The quantity of the cartridge valves is N, and one cartridge valve is simultaneously communicated with the plunger cylinder where a group of plunger assemblies are located and used for controlling the movement of the plunger assemblies located in the plunger cylinder.

4. The electrically controlled hydraulic motor of claim 1, wherein the number of said cartridge valves is the same as the number of said ram assemblies and corresponds one to one, and one of said cartridge valves communicates with a ram cylinder in which one of said ram assemblies is located and is adapted to control the movement of said ram assemblies within said ram cylinder.

5. The electric control hydraulic motor according to claim 2, wherein the oil cylinder body is axially provided with a rotating shaft hole, the rotation output assembly further comprises a power output shaft, the rotating disc is fixedly connected with the power output shaft, the rotating disc is sleeved on the acting surface of the oil cylinder body, the power output shaft is rotatably inserted into the rotating shaft hole, and the angle sensor is fixed to the power output shaft.

6. The electrically controlled hydraulic motor according to claim 2, wherein the cylinder block is fitted over the turntable, and the guide surface is an outer peripheral surface of the turntable.

7. The electrically controlled hydraulic motor according to claim 6, wherein the rotation output assembly further comprises a power output shaft, the power output shaft is fixedly connected to or integrally formed with the turntable, and the angle sensor is fixed to the power output shaft.

8. The electrically controlled hydraulic motor according to claim 5, wherein the power take-off shaft is a bi-directional output shaft, the rotary output assembly further comprising a transmission assembly, the angle sensor being in driving connection with the power take-off shaft via the transmission assembly.

9. The electric control hydraulic motor according to claim 2, wherein the acting surface is an end surface of the oil cylinder body, the guide surface is an end surface of the rotary table, the rotation output assembly further includes a power output shaft, the power output shaft is fixedly connected with the rotary table, the oil cylinder body is axially provided with a rotary shaft hole, and the power output shaft is rotatably inserted through the rotary shaft hole.

10. The electric control hydraulic motor according to any one of claims 1 to 9, wherein the number of the plunger assemblies is plural, the cylinder block is provided with plunger cylinders corresponding to the plunger assemblies one to one, and the controller controls the cartridge valve to drive the plunger assemblies matched with the cartridge valve to move at a preset time so as to drive the rotation output assembly to rotate in a preset direction.

Technical Field

The application relates to the technical field of hydraulic motors, in particular to an electronic control hydraulic motor.

Background

In recent years, as hydraulic technology is continuously developed towards high pressure and high power, people have higher and higher requirements on hydraulic motors.

The existing inner curve type low-speed large-torque hydraulic motor has higher requirement on the whole machining precision, so that the machining and manufacturing difficulty is higher.

Disclosure of Invention

The purpose of this application includes, for example, provides an automatically controlled hydraulic motor, and it can improve current hydraulic motor machining precision and require highly, the big problem of the processing degree of difficulty.

The embodiment of the application can be realized as follows:

In a first aspect, an embodiment of the present application provides an electrically controlled hydraulic motor, which includes an oil cylinder body, a rotation output assembly, a plunger assembly, a cartridge valve, an angle sensor, and a controller;

The plunger assembly is arranged on the oil cylinder body, the cartridge valve is arranged on the oil cylinder body and used for being communicated with a hydraulic system, the angle sensor is arranged on the rotation output assembly and used for detecting the rotation angle of the rotation output assembly relative to the oil cylinder body, and the cartridge valve and the angle sensor are respectively and electrically connected with the controller;

The controller is used for controlling the cartridge valve to act according to the detection result of the angle sensor, so that the plunger assembly drives the rotation output assembly to rotate along a preset state.

In an optional embodiment, the oil cylinder body comprises an action surface, and plunger cylinders are uniformly arranged on the oil cylinder body and are vertical to the action surface;

The rotation output assembly comprises a turntable, the turntable comprises a guide rail surface matched with the action surface, and when the plunger assembly moves under the action of the hydraulic system, the plunger assembly can act on the guide rail surface.

In an alternative embodiment, the number of the plunger assemblies is 2N, and two plunger assemblies with central axes on the same straight line form a group;

The quantity of the cartridge valves is N, and one cartridge valve is simultaneously communicated with the plunger cylinder where a group of plunger assemblies are located and used for controlling the movement of the plunger assemblies located in the plunger cylinder.

In an alternative embodiment, the number of the cartridge valves is the same as that of the plunger assemblies, and the cartridge valves correspond to the plunger assemblies one by one, and one cartridge valve is communicated with the plunger cylinder where one plunger assembly is located and used for controlling the movement of the plunger assemblies located in the plunger cylinder.

In an optional implementation manner, the oil cylinder body is provided with a rotating shaft hole along the axial direction, the rotation output assembly further comprises a power output shaft, the rotating disc is fixedly connected with the power output shaft, the rotating disc is sleeved on the acting surface of the oil cylinder body, the power output shaft is rotatably arranged in the rotating shaft hole in a penetrating manner, and the angle sensor is fixed on the power output shaft.

In an optional embodiment, the oil cylinder body is sleeved on the turntable, and the guide rail surface is an outer circumferential surface of the turntable.

In an optional embodiment, the rotation output assembly further includes a power output shaft, the power output shaft is fixedly connected with or integrally formed with the turntable, and the angle sensor is fixed to the power output shaft.

In an optional embodiment, the power output shaft is a bidirectional output shaft, the rotation output assembly further includes a transmission assembly, and the angle sensor is in transmission connection with the power output shaft through the transmission assembly.

In an optional embodiment, the acting surface is an end surface of the oil cylinder body, the guide surface is an end surface of the rotary table, the rotation output assembly further includes a power output shaft, the power output shaft is fixedly connected with the rotary table, the oil cylinder body is provided with a rotary shaft hole along an axial direction, and the power output shaft is rotatably arranged in the rotary shaft hole in a penetrating manner.

In an optional embodiment, the number of the plunger assemblies is multiple, the oil cylinder body is provided with plunger cylinders corresponding to the plunger assemblies one to one, and the controller controls the cartridge valve to drive the plunger assemblies matched with the cartridge valve to move at a preset time so as to drive the rotation output assembly to rotate along a preset direction.

The beneficial effects of the embodiment of the application include, for example:

The oil distribution technology of the electric control cartridge valve is adopted, and the cartridge valve technology is used for supplying oil to plunger assemblies in hydraulic cylinders in groups or paired oil cylinder bodies in a mode of most direct and shortest connection, so that the existing mechanical oil distribution mode is replaced. The controller sets a program or logic operation, controls the cartridge valve to act according to the rotation angle of the rotation output assembly relative to the oil cylinder body, drives the cartridge valve core to reciprocate by means of the change of electromagnetic attraction for controlling the electrification and the outage of the electromagnet, and realizes the guiding of high-pressure hydraulic oil into a working cavity of a working oil cylinder plunger at a working section according to a working sequence and the timely guiding of low-pressure hydraulic oil into an oil tank for the working cavity of the oil cylinder plunger in a non-working state. Through the reciprocating motion of the plunger assembly, the roller at the end part of the plunger interacts with the turntable in the rotation output assembly, so that the electric control hydraulic motor is driven to carry out load rotation work. The problems of complex structure, high dimensional requirement precision, difficult machining and high assembly difficulty of the oil cylinder caused by the traditional oil distribution mode are well solved, the manufacturing cost of the motor is saved, and the system is simplified.

Drawings

in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of a conventional internal curve low speed high torque hydraulic motor;

FIG. 2 is a schematic structural diagram of an electrically controlled hydraulic motor provided herein;

FIG. 3 is a cross-sectional view of an electrically controlled hydraulic motor provided herein;

FIG. 4 is a logic control diagram of a two-way cartridge valve oil distribution system;

FIG. 5 is a schematic diagram of oil inlet and return of each oil cylinder under a low-speed working condition of the electric control hydraulic motor;

FIG. 6 is a schematic diagram of oil inlet and return of each oil cylinder under a high-speed working condition of the electric control hydraulic motor;

FIG. 7 is a schematic view of a first embodiment of an extended electrically controlled hydraulic motor according to the present disclosure;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a cross-sectional view of a second embodiment of an extended electrically controlled hydraulic motor according to the present application;

Fig. 10 is a cross-sectional view of a third structure of an electric control hydraulic motor provided by the application.

Icon: 100-an electrically controlled hydraulic motor; 01-a guide rail; 02-cylinder body; 03-oil distributing shaft; 04-flow distribution window hole; 05-a plunger; 06-rollers; 10-oil cylinder body; 101-acting surface; 102-mounting a disc; 105-a mounting plate; 11-a two-way cartridge valve; 12-a turntable; 125-guide surface; 13-a power take-off shaft; 15-angle sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

in the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", etc. are used to indicate an orientation or positional relationship based on that shown in the drawings or that the application product is usually placed in use, the description is merely for convenience and simplicity, and it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present application.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.