A low noise cycloidal hydraulic motor rotor structure

Abstract

The utility model provides a low -noise cycloid hydraulic motor rotor structure belongs to hydraulic transmission technical field, including the axle cover, sets up the limit hole on axle cover surface, the fixed strip of swing joint in axle cover surface, the clamping block fixed installation in fixed strip both ends, set up the auxiliary assembly on clamping block surface. The utility model discloses through the cooperation of auxiliary assembly and rotating assembly, has realized the noise reduction effect when hydraulic motor operation, the detachable connection mode of fixed shell and clamping plate not only is convenient for assembling maintenance, ensures accurate positioning of rotating assembly simultaneously, the first rotating block adopts the setting of angular deflection with second rotating block, makes transmission more stable, the guiding effect of extruding piece and convex block hydraulic drive cooperation limit slot forms efficient power transmission path, reduces energy loss, the setting of eccentric shaft and transmission shaft guarantees torque output, reduces mechanical noise through the dynamic balance effect of double rotating block.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic transmission technology, specifically relating to a low-noise cycloidal hydraulic motor rotor structure. Background Technology

[0002] Hydraulic motors, as devices that convert hydraulic energy into mechanical energy, trace their technological background back to the hydrostatic pressure principle proposed by Pascal in the 17th century. However, their practical application began in the late 19th century during the Industrial Revolution, developing alongside the maturity of hydraulic transmission technology. Their evolution has progressed from the initial gear motors and vane motors to modern high-performance axial and radial piston motors. Advances in materials, sealing technology, and control precision have significantly improved their power density and efficiency. Applications cover heavy-duty and high-torque fields such as engineering machinery, agricultural equipment, marine deck machinery, mining equipment, and industrial automated production lines. Their impact resistance and wide speed range make them irreplaceable under extreme working conditions.

[0003] During operation, the rotor structure of a traditional cycloidal hydraulic motor is prone to significant mechanical vibration and noise due to the impact of cycloidal gear meshing and hydraulic pulsation. This noise problem is particularly prominent under high-speed or variable load conditions, affecting the service life of the equipment and the working environment. This problem is mainly caused by factors such as rigid contact of the rotor meshing pair, insufficient dynamic balance, and fluctuations in the hydraulic oil transmission path. Utility Model Content

[0004] The purpose of this invention is to provide a low-noise cycloidal hydraulic motor rotor structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A low-noise cycloidal hydraulic motor rotor structure includes,

[0007] The shaft cover, a limiting hole provided on the surface of the shaft cover, a fixing strip movably connected to the surface of the shaft cover, a locking block fixedly installed at both ends of the fixing strip, an auxiliary component provided on the surface of the locking block, and a rotating component provided in the inner cavity of the auxiliary component.

[0008] As a preferred embodiment of the present invention, the auxiliary component includes a fixed shell movably connected to the surface of the card block, and a card slot disposed on the surface of the fixed shell.

[0009] As a preferred embodiment of the present invention, the auxiliary component further includes a protrusion fixedly connected to the inner cavity of the fixed shell, and a limiting groove disposed on the inner wall of the fixed shell.

[0010] As a preferred embodiment of this utility model, the auxiliary component further includes a card plate that is snapped onto the inner wall of the fixed shell, and a limiting post that is fixedly installed on the surface of the card plate.

[0011] As a preferred embodiment of the present invention, the rotating assembly includes a first rotating block movably connected to the surface of the limiting post, and a reserved hole provided on the surface of the first rotating block.

[0012] As a preferred embodiment of the present invention, the rotating assembly further includes a pressing block fixedly connected to the surface of the first rotating block, and an eccentric shaft fixedly connected to the surface of the first rotating block.

[0013] As a preferred embodiment of the present invention, the rotating assembly further includes a second rotating block movably connected to the surface of the eccentric shaft, and a transmission shaft fixedly installed at the end of the eccentric shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by using the auxiliary components and the rotating components in combination, the noise reduction effect of the hydraulic motor is achieved. The detachable connection between the fixed shell and the clamping plate not only facilitates assembly and maintenance, but also ensures the precise positioning of the rotating components. The first rotating block and the second rotating block are set with angular deflection, which makes the transmission more stable. The hydraulic drive of the extrusion block and the protrusion, combined with the guiding effect of the limiting groove, forms an efficient power transmission path and reduces energy loss. The setting of the eccentric shaft and the transmission shaft ensures torque output while reducing mechanical noise through the dynamic balancing effect of the double rotating blocks. While improving the working efficiency of the hydraulic motor, it greatly improves the problem of vibration and noise generated by traditional cycloidal rotors, and is particularly suitable for industrial application scenarios with high requirements for quiet performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the connection between the shaft cover and the limiting hole of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall auxiliary components of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall rotating component of this utility model.

[0020] In the diagram: 101, shaft cover; 102, limiting hole; 103, fixing strip; 104, locking block; 105, auxiliary component; 105a, fixing shell; 105b, locking groove; 105c, protrusion; 105d, limiting groove; 105e, locking plate; 105f, limiting post; 106, rotating component; 106a, first rotating block; 106b, reserved hole; 106c, pressing block; 106d, eccentric shaft; 106e, second rotating block; 106f, transmission shaft. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example

[0025] Reference Figures 1-4 This embodiment of the present invention provides a low-noise cycloidal hydraulic motor rotor structure, comprising:

[0026] Shaft cover 101, limiting hole 102 provided on the surface of shaft cover 101, fixing strip 103 movably connected to the surface of shaft cover 101, locking block 104 fixedly installed at both ends of fixing strip 103, auxiliary component 105 provided on the surface of locking block 104, and rotating component 106 provided in the inner cavity of auxiliary component 105.

[0027] Specifically, the auxiliary component 105 includes a fixed shell 105a movably connected to the surface of the card block 104, and a card groove 105b disposed on the surface of the fixed shell 105a. The auxiliary component 105 also includes a protrusion 105c fixedly connected to the inner cavity of the fixed shell 105a, and a limiting groove 105d disposed on the inner wall of the fixed shell 105a. The auxiliary component 105 also includes a card plate 105e snapped into the inner wall of the fixed shell 105a, and a limiting post 105f fixedly installed on the surface of the card plate 105e.

[0028] Furthermore, the fixing strip 103, in conjunction with the locking block 104, can quickly connect and fix the shaft cover 101 to the fixing shell 105a. The locking setting of the locking plate 105e and the fixing shell 105a facilitates the maintenance of the rotor during use.

[0029] Preferably, the rotating assembly 106 includes a first rotating block 106a movably connected to the surface of the limiting post 105f, and a reserved hole 106b provided on the surface of the first rotating block 106a. The rotating assembly 106 also includes a pressing block 106c fixedly connected to the surface of the first rotating block 106a, and an eccentric shaft 106d fixedly connected to the surface of the first rotating block 106a. The rotating assembly 106 also includes a second rotating block 106e movably connected to the surface of the eccentric shaft 106d, and a transmission shaft 106f fixedly installed at the end of the eccentric shaft 106d.

[0030] It should be noted that the second rotating block 106e has the same shape as the first rotating block 106a, and the second rotating block 106e is concentrically arranged with the first rotating block 106a, while the angle is offset by 45 degrees; the diameter of the reserved hole 106b on the side of the first rotating block 106a and the second rotating block 106e is larger than that of the limiting post 105f, which facilitates the rotation of the first rotating block 106a and the second rotating block 106e.

[0031] In use, the clamping plate 105e is clamped into the fixed shell 105a. The pre-drilled hole 106b on the first rotating block 106a is fitted onto the outside of the limiting post 105f. The second rotating block 106e is placed on the surface of the eccentric shaft 106d on the surface of the first rotating block 106a. The drive shaft 106f extends through the center of the second rotating block 106e. The limiting hole 102 on the cover plate is aligned with the drive shaft 106f. The shaft cover 101 is fixedly connected. The fixing strip 103 is inserted into the clamping groove 105b. The clamping block 10... 4. Fix the shaft cover 101 to the fixed shell 105a, while ensuring the fixation of the clamping plate 105e. Place the device inside the motor, and press hydraulic oil into the fixed shell 105a. The pressing block 106c on the surface of the first rotating block 106a abuts against the protrusion 105c, and can rotate in conjunction with the limiting groove 105d. The second rotating block 106e operates in the same way. The first rotating block 106a drives the eccentric shaft 106d to rotate. With the correction of the second rotating block 106e, the eccentric shaft 106d drives the transmission shaft 106f to rotate.

[0032] In summary, the combined use of auxiliary component 105 and rotating component 106 achieves low-noise, high-efficiency hydraulic transmission. The quick connection between the fixing bar 103 and the locking block 104 simplifies the assembly process and facilitates later maintenance and repair. The concentric offset of the first rotating block 106a and the second rotating block 106e, combined with the eccentric shaft 106d structure, effectively reduces vibration and noise during operation. The interaction between the hydraulic oil-driven pressing block 106c and the protrusion 105c, combined with the guiding function of the limiting groove 105d, makes the rotor run more smoothly. The clearance fit between the reserved hole 106b and the limiting post 105f ensures rotational freedom and effectively corrects eccentric motion through the phase difference compensation of the dual rotating blocks. Finally, a stable torque is output through the transmission shaft 106f, which improves overall durability and quietness while ensuring transmission accuracy, making it suitable for noise-sensitive applications.

[0033] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0034] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0035] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A low-noise cycloidal hydraulic motor rotor structure, characterized in that: include, Shaft cover (101), limiting hole (102) provided on the surface of shaft cover (101), fixing strip (103) movably connected to the surface of shaft cover (101), locking blocks (104) fixedly installed at both ends of fixing strip (103), auxiliary component (105) provided on the surface of locking block (104), and rotating component (106) provided in the cavity of auxiliary component (105). The rotating assembly (106) includes a first rotating block (106a) movably connected to the surface of the limiting post (105f), and a reserved hole (106b) provided on the surface of the first rotating block (106a). The rotating assembly (106) further includes a pressing block (106c) fixedly connected to the surface of the first rotating block (106a), and an eccentric shaft (106d) fixedly connected to the surface of the first rotating block (106a). The rotating assembly (106) further includes a second rotating block (106e) movably connected to the surface of the eccentric shaft (106d), and a drive shaft (106f) fixedly mounted on the end of the eccentric shaft (106d).

2. The low-noise cycloidal hydraulic motor rotor structure according to claim 1, characterized in that: The auxiliary component (105) includes a fixed shell (105a) movably connected to the surface of the card block (104) and a card slot (105b) disposed on the surface of the fixed shell (105a).

3. The low-noise cycloidal hydraulic motor rotor structure according to claim 2, characterized in that: The auxiliary component (105) also includes a protrusion (105c) fixedly connected to the inner cavity of the fixed shell (105a) and a limiting groove (105d) provided on the inner wall of the fixed shell (105a).

4. The low-noise cycloidal hydraulic motor rotor structure according to claim 3, characterized in that: The auxiliary component (105) also includes a retaining plate (105e) that is snapped onto the inner wall of the fixed housing (105a), and a limiting post (105f) that is fixedly installed on the surface of the retaining plate (105e).

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