Hydraulic motor with novel rotor pressing plate and engineering vehicle

Abstract

The hydraulic motor comprises a motor front cover, a motor rear cover, a stator and a rotor assembly connected with a rotating shaft, the rotor assembly comprises a rotor, a roller and a plunger, a plurality of piston holes are distributed in the rotor, the plunger rotates along the inner surface of the stator, the inner surface of the stator is in a wave shape, and the roller is arranged on the rotor. The plunger is installed in the piston hole to do piston motion, rotor pressing plates are distributed on the two sides of the rotor, a plurality of grooves are distributed in at least one rotor pressing plate, the grooves are formed in the edges of the rotor pressing plates, flow guide openings are formed in the grooves and diverge towards the periphery of the rotor, and the outer sides of the flow guide openings are arranged on the peripheral side walls of the rotor pressing plates. The probe has the advantages that on one hand, hydraulic oil in the groove is removed during rotation, the probe is prevented from being interfered, and the measurement stability is enhanced; on the other hand, enough space is provided for the groove as much as possible, the area of the groove is increased, and then the measurement accuracy is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a hydraulic motor with a novel rotor pressure plate and an engineering vehicle. Background Art

[0002] Hydraulic motors, as an indispensable power conversion device in modern industry, have been widely used in many fields due to their high efficiency and stable performance characteristics. From automation equipment on industrial production lines to irrigation systems in farmland to precision instruments in the aerospace field, hydraulic motors play a key role. Its core working principle is to use the pressure energy of the liquid to convert it into mechanical energy through a precisely designed internal structure, drive the rotor to rotate, and realize energy conversion and transmission.

[0003] With the continuous advancement of technology and the complexity of application scenarios, the performance requirements for hydraulic motors are also increasing. Among them, accurate detection of the speed of hydraulic motors is the key to ensuring stable operation of the system. Traditional speed detection methods, such as setting a rotor pressure plate on the outside of the motor rotor and evenly distributing circular grooves on the pressure plate, use a magnetoelectric speed sensor to detect the pulse signal generated when the grooves pass through. Although it can achieve basic speed measurement, it has obvious shortcomings.

[0004] First, due to the small size of the circular groove, when the rotor rotates, the pulse fluctuations it generates are relatively weak, which makes the signal received by the sensor not obvious enough, thus affecting the accuracy of the speed measurement. Secondly, when the circular groove rotates, hydraulic oil is likely to remain inside it. The presence of this oil will interfere with the normal operation of the sensor and cause measurement errors.

[0005] Therefore, in view of the problems existing in the prior art, it is necessary to improve and optimize the speed detection method of the hydraulic motor to improve the accuracy and stability of the measurement and meet more complex and diverse application requirements. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a hydraulic motor and an engineering vehicle with a novel rotor pressure plate. The utility model improves the shape and position of the circular groove, thereby enhancing the accuracy of speed measurement.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a hydraulic motor with a new rotor pressure plate, including a motor front cover, a motor rear cover, a stator and a rotor assembly connected to a rotating shaft, the rotor assembly including a rotor and a plunger, a plurality of piston holes are distributed on the rotor, the plunger rotates along the inner surface of the stator, the inner surface of the stator is wavy, the plunger is installed in the piston hole to perform piston movement, rotor pressure plates are distributed on both sides of the rotor, and a plurality of grooves are distributed on at least one rotor pressure plate, the grooves are arranged at the edge of the rotor pressure plate, a guide port is arranged on the groove, the guide port diverges toward the surrounding direction of the rotor, and the outer side of the guide port is arranged on the peripheral side wall of the rotor pressure plate.

[0008] A further preferred solution of the utility model is that the groove is U-shaped.

[0009] A further preferred solution of the utility model is that when the rotor drives the rotor pressure plate to rotate, the hydraulic oil in the groove is discharged through the backflow port.

[0010] A further preferred solution of the utility model is that a groove is arranged on one of the rotor pressure plates on both sides, and the grooves are evenly distributed on the outer side surface of the rotor pressure plate.

[0011] A further preferred solution of the utility model is: the rotor pressure plate is in a circular ring shape, and the rotor pressure plate and the rotor are fixed by screws.

[0012] A further preferred solution of the utility model is that the diameter of the rotor pressure plate is the same as that of the rotor.

[0013] An engineering vehicle comprises any one of the above-mentioned hydraulic motors with a novel rotor pressure plate.

[0014] The utility model replaces the circular groove of the rotor pressure plate with a groove provided with a guide port, and the groove is arranged at the edge of the rotor pressure plate. On the one hand, the hydraulic oil in the groove is removed during rotation to avoid interference with the probe and enhance measurement stability; on the other hand, sufficient space is provided for the groove as much as possible, thereby increasing the area of ​​the groove and enhancing the accuracy of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a hydraulic motor;

[0016] Figure 2 It is a schematic diagram of the structure of a traditional rotor pressure plate;

[0017] Figure 3 It is a structural schematic diagram of the rotor pressure plate of the utility model;

[0018] Figure 4 A three-dimensional diagram of the stator and rotor assembly. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 4 As shown, a hydraulic motor with a new rotor pressure plate is highly innovative and practical in design. The hydraulic motor is mainly composed of a motor front cover 1, a motor rear cover 2, a stator 3 and a rotor assembly closely connected to a rotating shaft 4. The rotor assembly, as the core part of the motor, includes a rotor 5, a roller 20 and a plunger 6. The plungers 6 perform circular motion along the inner surface of the stator 3, and the inner surface of the stator 3 is designed to be wavy so that the plunger 6 can perform piston motion therein through the roller, thereby effectively converting hydraulic energy into mechanical energy.

[0021] On both sides of the rotor 5, there are rotor clamps 7, which play a vital role in maintaining the stability and accuracy of the rotor 5. On at least one rotor clamp 7, a plurality of grooves 8 are carefully designed, and these grooves 8 are cleverly arranged at the edge of the clamp. The selection of the edge position not only makes full use of the circumferential space of the clamp, but also makes the grooves 8 easier to measure due to the larger area.

[0022] The shape of the groove 8 is designed to be U-shaped, which increases the area of ​​the groove 8 as much as possible while maintaining the structural strength. A larger area means that there can be a larger contact surface between the sensor probe and the groove 8, thereby improving the accuracy and stability of the measurement.

[0023] The groove 8 is also specially provided with guide ports 9, which diverge toward the surrounding direction of the rotor 5, effectively discharging the hydraulic oil in the groove 8 to the outside. This design avoids the interference of the hydraulic oil on the sensor measurement and ensures the accuracy and reliability of the speed data.

[0024] Only one of the rotor pressure plates 7 on both sides is provided with grooves 8, and these grooves 8 are evenly distributed on the outer side of the clamping plate. This design simplifies the installation and maintenance process, and also ensures that the sensor only needs to be aligned with the grooves 8 on one side to accurately measure the rotation speed of the rotor 5.

[0025] The rotor pressure plate 7 is in a circular shape and is tightly fixed to the rotor 5 by screws. When the rotor 5 rotates, the rotor pressure plate 7 will also rotate synchronously. Therefore, by measuring the rotation speed of the rotor pressure plate 7, the rotation speed of the rotor 5 can be accurately obtained. This design not only simplifies the measurement process, but also improves the measurement accuracy.

[0026] It is worth mentioning that the diameter of the rotor pressure plate 7 is the same as that of the rotor 5. Such a design avoids any potential interference of the clamping plate on the rotation of the rotor 5, and ensures that the rotor 5 can rotate smoothly and stably.

[0027] In general, the design of this hydraulic motor with a new rotor pressure plate fully considers the accuracy, stability and convenience of measurement, and provides an efficient and reliable solution for the speed measurement of hydraulic motors. The number of grooves is between 20 and 30, which can more accurately measure the speed of the rotor.

[0028] An engineering vehicle includes a hydraulic motor with a novel rotor pressure plate as described above. On the one hand, the hydraulic oil in the groove is removed during rotation to avoid interference with the probe and enhance measurement stability. On the other hand, sufficient space is provided for the groove as much as possible to increase the area of ​​the groove, thereby enhancing measurement accuracy.

[0029] A sensor probe 11 is arranged on the motor rear cover 2, and the sensor probe 11 is horizontally aligned with the corresponding groove 8, and a spacing space 12 is arranged between the sensor probe 11 and the groove 8. The function of the spacing space 12 is: on the one hand, the arrangement of the sensor probe 11 does not affect the rotation of the rotor pressure plate 7, and on the other hand, provides a sufficient sensing distance for the normal operation of the sensor probe 11.

[0030] The above is a detailed introduction to the hydraulic motor and engineering vehicle with a new rotor pressure plate provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A hydraulic motor with a new rotor pressure plate, comprising a motor front cover, a motor rear cover, a stator and a rotor assembly connected to a rotating shaft, wherein the rotor assembly comprises a rotor, a roller and a plunger, wherein a plurality of piston holes are distributed on the rotor, wherein the plunger rotates along the inner surface of the stator through the roller, wherein the inner surface of the stator is wavy, wherein the plunger is installed in the piston hole to perform piston motion, wherein rotor pressure plates are distributed on both sides of the rotor, wherein at least one rotor pressure plate is distributed with a plurality of grooves, wherein the plurality of grooves are distributed on the rotor The groove is arranged at the edge of the rotor pressure plate, and a guide port is arranged on the groove. The guide port diverges toward the surrounding direction of the rotor, and the outer side of the guide port is arranged on the peripheral side wall of the rotor pressure plate.

2. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that The groove is U-shaped.

3. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that When the rotor drives the rotor pressure plate to rotate, the hydraulic oil in the groove is discharged through the backflow port.

4. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that One of the rotor pressure plates on both sides is provided with a groove, and the grooves are evenly distributed on the outer side surface of the rotor pressure plate.

5. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that The rotor pressure plate is in a circular ring shape, and the rotor pressure plate and the rotor are fixed by screws.

6. A hydraulic motor with a novel rotor pressure plate according to claim 1, characterized in that The diameter of the rotor pressure plate is the same as that of the rotor.

7. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that The number of the grooves is between 20 and 30.

8. A hydraulic motor with a new rotor pressure plate according to claim 1, characterized in that The motor rear cover is provided with a sensor probe, the sensor probe is horizontally aligned with the corresponding groove, and a spacing space is provided between the sensor probe and the groove.

9. An engineering vehicle, characterized in that It comprises a hydraulic motor with a novel rotor pressure plate as described in any one of claims 1-8.

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