A flow-adjustable hydraulic motor

Abstract

The utility model belongs to hydraulic motor technical field, and disclose a kind of adjustable flow hydraulic motor, including hydraulic motor main body;The surface of the hydraulic motor main body is equipped with flow regulating assembly, the flow regulating assembly includes the main body frame being installed on the surface of the hydraulic motor main body and the flow-through cavity being opened in the main body frame inside and annular frame for flow regulation, cross section ball, connecting rod, drive motor, sealing ring, controller;The surface of the annular frame is equipped with flow feedback assembly, and the flow feedback assembly includes the connecting frame being installed on the surface of the annular frame, the utility model has can adjust the flow of hydraulic motor oil delivery, can be according to the demand of actual operation scene, the oil flow of input or output hydraulic motor is accurately regulated and controlled, greatly improve the operating reliability of hydraulic motor, further improve the advantages that hydraulic motor uses effect.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic motor technology, specifically an adjustable flow hydraulic motor. Background Technology

[0002] As a core actuator in hydraulic systems, the hydraulic motor's core function is to efficiently convert the liquid pressure energy output by the hydraulic pump into the mechanical energy of the output shaft, thereby producing stable torque and speed. Therefore, it is often referred to as an oil motor. Due to its advantages such as stable power output, high load-bearing capacity, and adaptability to harsh working conditions, this type of component has been widely used in various industrial fields, including injection molding machinery, marine equipment, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, petrochemical equipment, and port machinery, becoming a key component for power transmission in modern industrial production. In existing technologies, the valve body of a hydraulic motor, as a core component for controlling the flow of hydraulic oil, is typically designed solely to control the on / off state of the hydraulic oil to meet the basic operational requirements of starting and stopping the motor. The internal flow channel structure and control mechanism of traditional valve bodies are relatively fixed, lacking the function of actively regulating the hydraulic oil flow rate. This means they cannot precisely control the oil flow rate of the input or output hydraulic motor according to the needs of the actual operational scenario, thus limiting their function to basic power on / off control. The aforementioned shortcomings of existing technologies make it difficult for traditional hydraulic motors to meet the high-level requirements for precise flow regulation in industrial production. On the one hand, the inability to adjust the flow rate means that the output torque and speed of the hydraulic motor cannot be dynamically adapted to changes in load or operational precision requirements, thus hindering the full realization of its performance potential. On the other hand, in scenarios where power output precision is required, the insufficient stability of power output due to a fixed flow rate may lead to problems such as decreased equipment operational precision and increased energy consumption, and may even affect the operational reliability of the entire hydraulic system, thus restricting the application expansion of hydraulic motors in high-precision, highly adaptable industrial scenarios.

[0003] Therefore, an adjustable flow hydraulic motor is proposed to address the above problems. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an adjustable flow hydraulic motor, which has the advantages of being able to adjust the hydraulic motor oil delivery flow rate, and being able to precisely control the oil flow rate of the input or output hydraulic motor according to the needs of the actual operation scenario, which greatly improves the reliability of hydraulic motor operation and further enhances the performance of hydraulic motor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable flow hydraulic motor, comprising a hydraulic motor body; The surface of the hydraulic motor body is equipped with a flow regulating component, which includes a main frame mounted on the surface of the hydraulic motor body, a flow cavity opened inside the main frame, and an annular frame, a cross-sectional ball, a connecting rod, a drive motor, a sealing ring, and a controller for flow regulation. The surface of the annular frame is equipped with a flow feedback component, which includes a connecting frame mounted on the surface of the annular frame, a plurality of electromagnetic sensors mounted inside the connecting frame, and an embedded slot for detecting flow.

[0006] Preferably, the annular frame is installed inside the flow cavity, the cross-sectional ball is rotatably connected inside the annular frame, the connecting rod is rotatably connected in the through hole opened on the surface of the main frame, and one end of the connecting rod passes through the main frame and the annular frame in sequence and is connected to the cross-sectional ball.

[0007] Preferably, the drive motor is mounted on the upper surface of the main frame, and the output end of the drive motor is connected to the other end of the connecting rod.

[0008] Preferably, the sealing ring is installed on the surface of the connecting rod and fits tightly against the through hole opened on the surface of the main frame.

[0009] Preferably, the controller is mounted on the outer side of the main frame, and the controller is electrically connected to the drive motor.

[0010] Preferably, the ring frame and the connecting frame are an integrated structure, the inlay groove is opened on the inner side of the connecting frame, and the multiple electromagnetic sensors are inlaid in the inlay groove one by one, and the detection end of the electromagnetic sensor is flush with the horizontal plane of the groove opening.

[0011] Preferably, the electromagnetic sensor and the controller are electrically connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problems of unstable output and low operating accuracy caused by the uncontrollable flow of traditional hydraulic motors by setting up a flow regulation component, which integrates core components such as the main frame, cross-section ball, drive motor, and controller, thereby improving the operational reliability of the hydraulic motor body in high-precision and variable load scenarios.

[0013] 2. This utility model incorporates a flow feedback component, enabling the electromagnetic sensor's detection end to directly contact the flowing hydraulic oil. This reduces blind spots and avoids increased oil flow resistance or turbulence caused by sensor protrusion, ensuring smooth oil flow, improving the reliability and accuracy of flow detection, providing high-quality data support for closed-loop regulation, and ultimately enabling real-time flow monitoring and feedback for flow control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the main frame of this utility model; Figure 3 This is a schematic diagram of the structure of the cross-section sphere of this utility model when it is open and closed; Figure 4 This is a schematic diagram of the connecting frame and inlay groove of this utility model; Figure 5 This is a schematic diagram of the structure of the present invention when the cross-section of the sphere is closed.

[0015] In the figure: 1. Hydraulic motor body; 2. Flow regulating component; 21. Main frame; 22. Flow chamber; 23. Ring frame; 24. Cross-section ball; 25. Connecting rod; 26. Drive motor; 27. Sealing ring; 28. Controller; 3. Flow feedback component; 31. Connecting frame; 32. Electromagnetic sensor; 33. Embedding groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 5 As shown, this utility model provides an adjustable flow hydraulic motor, including a hydraulic motor body 1; A flow regulating component 2 is installed on the surface of the hydraulic motor body 1. The flow regulating component 2 includes a main frame 21 installed on the surface of the hydraulic motor body 1, a flow cavity 22 opened inside the main frame 21, and an annular frame 23, a cross-sectional ball 24, a connecting rod 25, a drive motor 26, a sealing ring 27, and a controller 28 for flow regulation. The annular frame 23 is installed inside the flow cavity 22, the cross-section ball 24 is rotatably connected inside the annular frame 23, and the connecting rod 25 is rotatably connected in the through hole opened on the surface of the main frame 21. One end of the connecting rod 25 passes through the main frame 21 and the annular frame 23 in sequence and is connected to the cross-section ball 24. The flow regulating component 2 integrates core components such as the main frame 21, the cross-section ball 24, the drive motor 26, and the controller 28, which solves the problems of unstable output and low operating accuracy caused by the uncontrollable flow of traditional hydraulic motors, and improves the operating reliability of the hydraulic motor body 1 in high-precision and variable load scenarios.

[0018] The drive motor 26 is mounted on the upper surface of the main frame 21, and the output end of the drive motor 26 is connected to the other end of the connecting rod 25. The drive motor 26 is mounted on the upper surface of the main frame 21, and the output end is directly connected to the connecting rod 25. The power transmission path is short and the loss is small. It can quickly respond to the adjustment command of the controller 28, realize the instant rotation of the cross-section ball 24, and improve the response speed of flow regulation.

[0019] The sealing ring 27 is installed on the surface of the connecting rod 25 and fits tightly with the through hole opened on the surface of the main frame 21. The sealing ring 27 fits tightly with the surface of the connecting rod 25 and the through hole of the main frame 21 to form a reliable sealing structure, effectively blocking the leakage of hydraulic oil from the gap between the connecting rod 25 and the through hole, avoiding system pressure loss caused by oil leakage, and ensuring the power output efficiency of the hydraulic motor body 1.

[0020] The controller 28 is installed on the outer side of the main frame 21 and is electrically connected to the drive motor 26. The electrical connection between the controller 28 and the drive motor 26 enables precise control of the rotation direction and rotation angle of the drive motor 26. In turn, the flow area is precisely adjusted by driving the cross-sectional ball 24 through the connecting rod 25, thus solving the problems of low precision and slow response of traditional mechanical adjustment methods.

[0021] A flow feedback component 3 is mounted on the surface of the ring frame 23. The flow feedback component 3 includes a connecting frame 31 mounted on the surface of the ring frame 23, a plurality of electromagnetic sensors 32 mounted inside the connecting frame 31, and an inlay slot 33 for detecting flow. The ring frame 23 and the connecting frame 31 are integrated structures. The inlay groove 33 is opened on the inner side of the connecting frame 31. Multiple electromagnetic sensors 32 are embedded in the inlay groove 33 one by one. The detection end of the electromagnetic sensor 32 is flush with the horizontal plane of the groove opening of the inlay groove 33, so that the detection end of the electromagnetic sensor 32 can directly contact the flowing hydraulic oil, reduce the detection blind zone, and avoid the increase of oil flow resistance or turbulence caused by sensor protrusion. This ensures smooth oil flow, improves the reliability and accuracy of flow detection, provides high-quality data support for closed-loop regulation, and enables monitoring and feedback of the flow rate, and real-time flow regulation.

[0022] The electromagnetic sensor 32 and the controller 28 are electrically connected to realize the real-time transmission of flow detection data: After the electromagnetic sensor 32 converts the collected oil flow rate signal into an electrical signal, it can immediately feed it back to the controller 28, so that the controller 28 can obtain the current flow status in real time and realize dynamic flow adaptation.

[0023] Among them, the drive motor 26, controller 28 and electromagnetic sensor 32 are existing technologies, and their working principles are well-known technologies. The appropriate model is selected according to the actual use. Drive motor 26: preferably a micro stepper motor or servo motor; Controller 28: preferably a compact PLC or a dedicated motion controller (adapted to closed-loop regulation logic); Electromagnetic sensor 32: preferably an oil-resistant electromagnetic flow sensor (adapted to real-time oil flow detection).

[0024] Working principle and process: After the hydraulic system is started, the hydraulic oil enters the main frame 21 of the flow regulating component 2 from the hydraulic motor body 1, and is delivered to the power output end of the hydraulic motor body 1 through the flow chamber 22 to provide pressure energy for the motor to run. When the hydraulic oil flows through the flow chamber 22, it needs to pass through the flow channel between the annular frame 23 and the cross-sectional ball 24, and at the same time flow through the inner area of ​​the connecting frame 31 (the annular frame 23 and the connecting frame 31 are an integrated structure to ensure that the detection area and the flow channel correspond precisely). Multiple electromagnetic sensors 32 embedded in the mounting groove 33 of the connecting frame 31 work synchronously: Since the detection end of the electromagnetic sensor 32 is flush with the groove opening of the mounting groove 33, it can directly contact the flowing hydraulic oil and use the principle of electromagnetic induction to detect the flow rate of the oil (when the oil flows, it will change the electromagnetic field around the sensor, and the sensor will convert the change of magnetic field into an electrical signal). Multiple electromagnetic sensors 32 adopt a multi-point distributed detection design, which can collect oil flow velocity data at different radial positions of the flow cavity 22, avoiding errors caused by a single detection point; all sensors transmit the collected flow velocity electrical signals to the controller 28 in real time, and the controller 28 calculates the current actual oil flow rate value based on preset parameters such as the cross-sectional area of ​​the flow cavity 22 and the oil density. The controller 28 performs real-time comparison and analysis between the converted actual flow rate and the preset target flow rate. If the actual flow rate is greater than the target flow rate: the controller 28 sends a rotation command to the drive motor 26, and the output end of the drive motor 26 drives the connecting rod 25 to rotate around the through hole of the main frame 21; the end of the connecting rod 25 away from the drive motor 26 passes through the main frame 21 and the ring frame 23, and synchronously drives the cross-sectional ball 24 to rotate in the ring frame 23. The spherical surface of the cross-sectional ball 24 gradually blocks part of the channel of the flow cavity 22, reducing the cross-sectional area of ​​the oil flow, thereby reducing the oil flow rate; If the actual flow rate is less than the target flow rate: the controller 28 sends a reverse rotation command to the drive motor 26, the drive motor 26 drives the connecting rod 25 to rotate in the opposite direction, and then drives the cross-sectional ball 24 to rotate in the opposite direction, increasing the flow cross-sectional area between the cross-sectional ball 24 and the ring frame 23, thereby increasing the oil flow rate.

[0025] During the adjustment process, the rotation angle of the drive motor 26 is precisely controlled by the controller 28, which dynamically adjusts the rotation angle according to the difference between the actual flow rate and the target flow rate to ensure the accuracy of flow rate adjustment. After the flow rate is adjusted, the electromagnetic sensor 32 continuously collects oil flow rate data and feeds it back to the controller 28 in real time to form a closed-loop control: the controller 28 continuously compares the actual flow rate with the target flow rate and sends a fine-tuning command to the drive motor 26 to continuously optimize the position of the cross-section ball 24. At this time, the hydraulic motor outputs stable torque and speed to meet the operation requirements. When the load on the hydraulic system changes (such as changes in the operating resistance of construction machinery), the hydraulic oil flow rate will fluctuate accordingly: when the load increases, the oil flow rate decreases and the actual flow rate decreases; when the load decreases, the oil flow rate increases and the actual flow rate increases. The electromagnetic sensor 32 can quickly capture this fluctuation, the controller 28 responds quickly, and the drive motor 26 drives the cross-section ball 24 to complete the position adjustment, realizing dynamic adaptation of the flow rate and ensuring the stable performance of the hydraulic motor. When the hydraulic motor completes its work or the hydraulic system stops, the operator issues a stop command through the controller 28: the controller 28 first cuts off the drive signal of the drive motor 26, and then sends a reset command to the drive motor 26. The drive motor 26 drives the connecting rod 25 and the cross-sectional ball 24 back to the initial position (maximum flow area), so that the oil can flow quickly when the next start-up is completed.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable flow hydraulic motor, comprising a hydraulic motor body (1). Its features are: The surface of the hydraulic motor body (1) is equipped with a flow regulating component (2). The flow regulating component (2) includes a main frame (21) installed on the surface of the hydraulic motor body (1), a flow cavity (22) opened inside the main frame (21), and a ring frame (23), a cross-section ball (24), a connecting rod (25), a drive motor (26), a sealing ring (27), and a controller (28) for flow regulation. The surface of the ring frame (23) is equipped with a flow feedback component (3), which includes a connecting frame (31) mounted on the surface of the ring frame (23), a plurality of electromagnetic sensors (32) mounted inside the connecting frame (31), and an inlay slot (33) for detecting flow.

2. The adjustable flow hydraulic motor according to claim 1, characterized in that: The annular frame (23) is installed inside the flow cavity (22), the cross-sectional ball (24) is rotatably connected inside the annular frame (23), and the connecting rod (25) is rotatably connected inside the through hole opened on the surface of the main frame (21). One end of the connecting rod (25) passes through the main frame (21) and the annular frame (23) in sequence and is connected to the cross-sectional ball (24).

3. The adjustable flow hydraulic motor according to claim 1, characterized in that: The drive motor (26) is mounted on the upper surface of the main frame (21), and the output end of the drive motor (26) is connected to the other end of the connecting rod (25).

4. The adjustable flow hydraulic motor according to claim 1, characterized in that: The sealing ring (27) is installed on the surface of the connecting rod (25) and fits tightly with the through hole opened on the surface of the main frame (21).

5. The adjustable flow hydraulic motor according to claim 1, characterized in that: The controller (28) is installed on the outer side of the main frame (21), and the controller (28) is electrically connected to the drive motor (26).

6. The adjustable flow hydraulic motor according to claim 1, characterized in that: The ring frame (23) and the connecting frame (31) are an integrated structure. The inlay groove (33) is opened on the inner side of the connecting frame (31). Multiple electromagnetic sensors (32) are inlaid in the inlay groove (33) one by one, and the detection end of the electromagnetic sensor (32) is flush with the horizontal plane of the groove opening of the inlay groove (33).

7. The adjustable flow hydraulic motor according to claim 1, characterized in that: The electromagnetic sensor (32) and the controller (28) are electrically connected.

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