Hydraulic motor with novel roller guide device

Abstract

The utility model discloses a hydraulic motor with a novel roller guide device, which 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 and plungers, a plurality of piston holes are distributed on the rotor, the plurality of plungers are arranged in the piston holes to do piston motion, rollers are arranged above the plungers, and the rollers are connected with the rotor assembly through the stator. The inner surface of the stator is wavy, the roller rotates along the inner surface of the stator, and guide plates are arranged on the two sides of the roller; when the roller is in a contraction state, the guide plates aim at the peripheral edge position of the roller and gradually aim at the middle position of the roller along with upward extension of the roller, and the guide device has the advantages that the guide plates are arranged on the two sides of the roller, so that a spring pin structure is omitted, the hidden danger of loosening or fracture of a spring pin is solved, and the guide function of the roller is stable; therefore, the overall performance and stability of the hydraulic motor are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a hydraulic motor with a novel roller guide device. Background Art

[0002] As the core power conversion device in modern industry and technology, the importance of hydraulic motors is self-evident. In a wide range of fields such as industry, agriculture, aerospace, etc., hydraulic motors convert the pressure energy of liquid into mechanical energy, drive the rotor to rotate, achieve efficient power output, and provide stable and reliable power support for various complex equipment.

[0003] The design structure of a hydraulic motor usually includes two parts: a stator and a rotor assembly. The rotor assembly is the core component, which includes a rotor and a plunger. A plunger expansion cavity is provided on the circumference of the rotor, and the plunger performs piston movement in the cavity, thereby realizing the conversion between the pressure energy and mechanical energy of the liquid. In order to improve the performance of the hydraulic motor, some designs have rollers above the plunger to improve the contact between the plunger and the stator and reduce friction and wear.

[0004] However, the stability of the roller's motion is crucial to the overall performance of the hydraulic motor. In order to ensure that the roller can run along the predetermined trajectory, the traditional design sets baffles on both sides of the roller and fixes them with spring pins. However, as the rotor continues to rotate, the spring pins will be subjected to repeated stress and easily loosen or break, causing the baffle to lose its fixing effect, thereby causing the roller's running trajectory to deviate.

[0005] This deviation will not only affect the performance stability of the hydraulic motor, but may also cause more serious failures, such as collision between the roller and the stator, increased wear, etc. Therefore, how to improve the roller fixing structure and improve its operating stability has become an urgent problem to be solved in the field of hydraulic motor design.

[0006] In summary, the shortcomings of the roller fixing structure in the existing hydraulic motor design have brought challenges to the performance improvement and wide application of hydraulic motors. Therefore, it is necessary to optimize and improve the roller fixing structure of the hydraulic motor to meet more complex and diverse application requirements. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a hydraulic motor with a novel roller guide device. The rollers of the utility model can be fixed more stably and are not prone to loosening or deviation, thereby enhancing the overall performance and stability of the hydraulic motor.

[0008] The technical solution adopted by the utility model to solve the above technical problems is: a hydraulic motor with a novel roller guide device, comprising a motor front cover, a motor rear cover, a stator and a rotor assembly connected to a rotating shaft, the rotor assembly comprising a rotor and a plunger, a plurality of piston holes are distributed on the rotor, a plurality of plungers are installed in the piston holes for piston movement, a roller is arranged above the plunger, the inner surface of the stator is wavy, the roller rotates along the inner surface of the stator, and guide plates are arranged on both sides of the roller; when the roller is in a retracted state, the guide plate is aligned with the peripheral edge position of the roller, and as the roller moves upward, the guide plate gradually aligns with the middle position of the roller.

[0009] A further preferred solution of the utility model is that the guide plate is a horizontally arranged cross plate, and the top of the guide plate is aligned with the two sides of the roller.

[0010] A further preferred solution of the utility model is that rotor clamping plates are arranged on both sides of the plunger, and the guide plates are arranged on the rotor clamping plates.

[0011] A further preferred solution of the utility model is: an inclined guide surface is arranged at the end of the guide plate, and the inclined guide surface is arranged at a lower position of the end of the guide plate.

[0012] A further preferred solution of the utility model is that hollow parts are arranged on both sides of the guide plate, and the hollow parts are used to prevent heat from accumulating inside the rotor assembly.

[0013] A further preferred solution of the utility model is that the hollowed-out portion is connected to the piston hole.

[0014] A further preferred solution of the utility model is: a groove is arranged at the edge of the rotor clamping plate, the sensor is aligned with the groove to measure the rotation speed of the rotor, a guide port is arranged at the outer end of the groove, and the groove is U-shaped.

[0015] A further preferred solution of the utility model is that the guide port is connected to the peripheral side wall of the rotor clamping plate.

[0016] The utility model replaces the traditional combination structure of the baffle plate and the spring pin with a guide plate structure. The guide plates are arranged on both sides of the roller, eliminating the spring pin structure, solving the hidden dangers of the spring pin loosening or breaking, making the guiding function of the roller stable, thereby enhancing the overall performance and stability of the hydraulic motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a hydraulic motor;

[0018] Figure 2 It is a schematic diagram of the structure of the rotor assembly and the stator;

[0019] Figure 3It is a three-dimensional diagram of the rotor assembly and the stator;

[0020] Figure 4 Side view of the rotor clamp Figure 1 ;

[0021] Figure 5 Side view of the rotor clamp Figure 2 . DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 5 As shown in the figure, in the modern industrial field, the hydraulic motor is the core component of the transmission system, and its performance stability and efficiency directly affect the operating efficiency and production quality of the entire equipment. To this end, we designed a hydraulic motor with a new roller guide device, which is not only compact in structure and ingenious in design, but also has significant improvements in stability and efficiency.

[0024] This hydraulic motor consists of a motor front cover 1, a motor rear cover 2, a stator 3 and a rotor assembly tightly connected to a rotating shaft 4. The rotor assembly is the core part of the entire motor, including a rotor 5 and a plunger 6 that cooperates therewith. In order to improve the guiding stability and movement accuracy of the roller 7, guide plates 8 are provided on both sides of the roller 7. When the roller 7 is in a retracted state, the guide plate 8 accurately aligns with the peripheral edge position of the roller 7 to ensure the stability of the roller 7 in the initial position. As the roller 7 extends upward under the action of the hydraulic oil, the guide plate 8 gradually aligns with the middle position of the roller 7, providing precise guidance for the movement of the roller 7. This design not only eliminates the traditional spring pin structure and avoids failures caused by loose or broken spring pins, but also makes the guiding function of the roller 7 more stable and reliable.

[0025] The guide plate 8 is a horizontally arranged horizontal plate structure, and its top is precisely aligned with both sides of the roller 7. Since the roller 7 is cylindrical, a good guiding effect can be achieved as long as both sides are fixed. This design simplifies the structure and improves the guiding accuracy.

[0026] In order to make full use of the existing structure and reduce the volume of the rotor assembly, we set the guide plate 8 on the rotor clamping plate 9 on both sides of the plunger. In this way, not only space is saved, but also the rotor assembly is more compact and light.

[0027] In order to further improve the error tolerance of the roller 7, we set an inclined guide surface 10 at the end of the guide plate 8. This inclined guide surface 10 is located below the end of the guide plate 8, so that when the roller 7 moves up and down as a piston, even if there is a slight deviation, it can quickly return to the correct motion trajectory under the guidance of the inclined guide surface 10. This design not only improves the motion accuracy of the roller 7, but also extends its service life.

[0028] In order to prevent heat from accumulating inside the rotor assembly, we set hollow parts 11 on both sides of the guide plate 8. These hollow parts 11 not only reduce the weight of the guide plate 8, but also allow the hydraulic oil to flow smoothly. The heat in the piston hole flows out of the hollow parts 11 through the hydraulic oil, thereby effectively reducing the temperature of the rotor assembly.

[0029] In addition, in order to accurately monitor the rotation speed of the rotor, we set a groove 12 at the edge of the rotor clamping plate 9. The sensor is aligned with this groove 12 to measure the speed, thereby ensuring the accurate measurement of the rotor speed. In order to prevent the hydraulic oil from affecting the speed measurement, we set a guide port 13 at the outer end of the groove 12. This guide port 13 is connected to the peripheral side wall of the rotor clamping plate 9. When the rotor rotates, the hydraulic oil will flow out from the guide port 13, thereby ensuring the accuracy of the speed measurement.

[0030] In summary, this hydraulic motor with a new rotor pressure plate has the advantages of compact structure, ingenious design, high stability and efficiency. It not only solves the problems existing in traditional hydraulic motors, but also improves the performance of the entire transmission system. In future industrial applications, it will play an increasingly important role.

[0031] The above is a detailed introduction to a hydraulic motor with a novel roller guide device proposed in the utility model. This article uses specific examples to illustrate the principle and implementation 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 in a number of ways, 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 novel roller guide device, 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 and a plunger, a plurality of piston holes are distributed on the rotor, a plurality of plungers are installed in the piston holes for piston movement, a roller is arranged above the plunger, the inner surface of the stator is wavy, and the roller rotates along the inner surface of the stator, characterized in that Guide plates are arranged on both sides of the roller, and the two guide plates form a roller guide device; when the roller is in a retracted state, the guide plates are aligned with the peripheral edge positions of the roller, and as the roller extends upward, the guide plates gradually align with the middle position of the roller.

2. A hydraulic motor with a novel roller guide device according to claim 1, characterized in that The guide plate is a horizontally arranged transverse plate, and the top of the guide plate is aligned with the two sides of the roller.

3. A hydraulic motor with a novel roller guide device according to claim 1, characterized in that Rotor clamping plates are arranged on both sides of the plunger, and guide plates are arranged on the rotor clamping plates.

4. A hydraulic motor with a novel roller guide device according to claim 1, characterized in that The end of the guide plate is provided with an inclined guide surface, and the inclined guide surface is arranged at a lower position of the end of the guide plate.

5. A hydraulic motor with a novel roller guide device according to claim 1, characterized in that Hollow parts are arranged on both sides of the guide plate, and the hollow parts are used to prevent heat from accumulating inside the rotor assembly.

6. A hydraulic motor with a novel roller guide device according to claim 5, characterized in that The hollow portion is connected to the piston hole.

7. A hydraulic motor with a novel roller guide device according to claim 3, characterized in that A groove is arranged at the edge of the rotor clamping plate, and the sensor is aligned with the groove to measure the rotation speed of the rotor. A guide port is arranged at the outer end of the groove, and the groove is U-shaped.

8. A hydraulic motor with a novel roller guide device according to claim 7, characterized in that The guide port is connected to the peripheral side wall of the rotor clamping plate.

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