Synchronous transmission gear box for hydraulic motor

Abstract

The utility model discloses a synchronous transmission gear box for a hydraulic motor. The synchronous transmission gear box comprises a shell, a plurality of synchronous units and a plurality of transmission units. The synchronous units can be in transmission connection with the output shafts of the hydraulic motors through spline transmission structures, the transmission units achieve transmission among the synchronous units through sequential meshing of the multiple idle gears, and synchronous torque transmission among the multiple hydraulic motors can be achieved. In addition, the synchronizing unit and / or the transmission unit of the gear box are / is made of light-weight materials and designed in a modularized mode, and maintenance and upgrading are convenient. The transmission efficiency and synchronism are improved, the sealing performance is enhanced, and remarkable technical advantages and market application value are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic transmission, and specifically to an efficient synchronous transmission gearbox integrating a synchronous unit and a transmission unit, which is particularly applicable to hydraulic systems requiring high-torque synchronous transmission. Background Art

[0002] A hydraulic motor is a device that converts hydraulic energy into mechanical energy. As an important component in a hydraulic system, its performance directly affects the efficiency and reliability of the entire system. The working principle of a hydraulic motor is similar to that of a hydraulic cylinder, but the difference is that a hydraulic motor converts pressure energy into rotational motion instead of linear motion. The specific working principle is as follows: 1. Hydraulic oil enters: The hydraulic oil enters the cylinder of the hydraulic motor through a control valve; 2. Pressure difference drives: A pressure difference is formed on both sides of the cylinder, and this pressure difference drives the rotor or plunger of the motor to start rotating; 3. Energy conversion: The rotational motion is transmitted to the required device or machine through a drive shaft, thus realizing the conversion of hydraulic energy into mechanical energy. The working principle of the hydraulic motor enables it to produce high-torque and high-speed outputs, so it is widely used in applications that require a large amount of power and continuous rotational motion.

[0003] In existing hydraulic transmission systems, achieving synchronous transmission of multiple hydraulic motors often faces problems such as complex structure, low efficiency, and poor sealing performance. Traditional methods are difficult to achieve good synchronism and sealing performance while ensuring high-torque output. Therefore, it is particularly important to develop a synchronous transmission gearbox with a compact structure, high synchronous accuracy, and good sealing effect. Summary of the Invention

[0004] The present invention aims to provide a synchronous transmission gearbox for hydraulic motors. Through the modular integrated design of the synchronous unit and the transmission unit, combined with precise assembly and sealing technologies, efficient and stable synchronous transmission between multiple hydraulic motors is achieved, while ensuring the sealing of the oil fluid, and improving the performance and reliability of the overall system.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A synchronous transmission gearbox for a hydraulic motor, characterized in that it comprises: a housing, a plurality of synchronous units and a plurality of transmission units; a receiving space is formed inside the housing; the synchronous units are installed in the receiving space, each synchronous unit comprises a synchronous wheel and a spline transmission structure, and the synchronous wheel can be connected to the output shaft of the hydraulic motor through the spline transmission structure; a plurality of the transmission units are installed in parallel in the receiving space, each transmission unit comprises a pin shaft, a needle roller bearing and an intermediate wheel, both ends of the pin shaft are fixedly mounted on the housing, the intermediate wheel is mounted on the pin shaft through the needle roller bearing, the intermediate wheels of two adjacent transmission units are meshed for transmission, and the meshed transmission of the plurality of intermediate wheels realizes the synchronous transmission between the two synchronous wheels, thereby realizing the synchronous transmission between the plurality of hydraulic motors.

[0007] Furthermore, the housing is provided with an opening at a position corresponding to the synchronization unit for connecting a hydraulic motor; a blind cover is provided on the other side to achieve oil sealing; and both ends of the housing at a position corresponding to the transmission unit are designed to be closed.

[0008] Furthermore, a first sealing member is arranged between the sealing cover and the shell, and a second sealing member is arranged between the pin shaft and the shell respectively; and a third sealing member is arranged on the end surface of the shell away from the sealing cover.

[0009] Furthermore, a plurality of connectors are arranged on the end surface of the housing corresponding to the position of the synchronization unit.

[0010] Furthermore, the housing is made of HT250, and the intermediate wheel and the synchronous wheel are made of 20CrMnTi.

[0011] Furthermore, the synchronization unit and the transmission unit are designed as a detachable and replaceable modular structure.

[0012] The beneficial effects of the present invention are as follows: by adopting a precise spline transmission structure and a transmission unit of modular design, the utility model realizes efficient synchronous transmission between multiple hydraulic motors, significantly improves the stability and synchronization of the transmission, and reduces energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 According to some embodiments of the present application, a schematic structural diagram of a synchronous transmission gearbox for a hydraulic motor is shown;

[0014] Figure 2 According to some embodiments of the present application, it is shown Figure 1 A top view of

[0015] Figure 3 According to some embodiments of the present application, it is shown Figure 2Cross-sectional view in the A-A direction;

[0016] Figure 4 According to some embodiments of the present application, there is shown Figure 2 Cross-sectional view in the B-B direction. Detailed implementation mode

[0017] The technical features and advantages of the present application will be described in more detail below in conjunction with the accompanying drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0018] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0019] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the importance of the indicated technical features.

[0020] In addition, it should also be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiment 1: Basic structure

[0022] Please refer to Figures 1-4 , this embodiment provides an efficient synchronous transmission gearbox for a hydraulic motor, the structure of which includes a sturdy housing 1, two synchronous units a, and a plurality of transmission units b. Each synchronous unit a is equipped with a synchronous pulley 2, a precise spline drive structure 3, and deep groove ball bearings 16, which ensure the precise transmission connection between the synchronous pulley 2 and the output shaft of the hydraulic motor. The synchronous pulley 2 receives power from the hydraulic motor through the spline drive structure 3 and is ready to transmit it to the subsequent transmission unit b.

[0023] Multiple transmission units b are installed side by side in the housing 1. Each transmission unit b consists of a pin shaft 7, a flanged needle roller bearing 8, and an idler gear 9. The pin shaft 7 is fixedly installed in the housing 1. In this embodiment, the pin shaft 7 is fixedly connected to the housing 1 through a flat-end set screw 15, while the idler gear 9 is flexibly installed on the pin shaft 7 through the flanged needle roller bearing 8. This design not only improves the stability of transmission but also reduces friction and wear. The idler gears 9 between two adjacent transmission units b are meshed precisely to achieve transmission. Through the meshing transmission of multiple idler gears 9, efficient synchronous transmission can be achieved between the two synchronous pulleys 2. Through this design, the output shafts of multiple hydraulic motors are effectively connected together to achieve their synchronous operation.

[0024] Embodiment 2: Design of the opening and the blind cover

[0025] Based on Embodiment 1, the design of the housing 1 is optimized in this embodiment. At the position of the housing 1 corresponding to the synchronous unit a, an opening is designed at one end to facilitate the connection and installation with the hydraulic motor; while a blind cover 4 is configured at the other end to ensure that the oil in the gearbox does not leak. To further improve the sealing performance, a first O-ring 6 is installed between the blind cover 4 and the housing 1 to prevent the leakage of oil. At the position of the housing 1 corresponding to the transmission unit b, except for the installation holes of the pin shaft 7 at both ends, the rest are of a closed design to achieve the sealing of the oil. The two ends of the pin shaft 7 are sealed with the housing 1 through a second O-ring 10.

[0026] Embodiment 3: Arrangement of the connecting parts

[0027] To enhance the connection strength between the gearbox and the hydraulic motor, multiple standardized connecting parts 11 are added at the position of the housing 1 corresponding to the synchronous unit a in this embodiment. These connecting parts 11 include but are not limited to bolt holes, flange plates, etc. They provide various connection methods, enabling the gearbox to adapt to different types of hydraulic motors. This design not only improves the convenience of installation but also enhances the reliability and stability of the connection.

[0028] Embodiment 4: Sealing technology

[0029] Based on Embodiment 2, the sealing technology of the gearbox is further optimized in this embodiment. In addition to the first O-ring 6 between the blind cover 4 and the housing 1 and the second O-rings 10 at both ends of the pin shaft 7, a third O-ring 12 is also arranged on the end face of the opening side of the housing 1 corresponding to the synchronous unit a to achieve the oil sealing between the hydraulic motor and the gearbox. This multiple-sealing structure further ensures the oil tightness and effectively prevents the leakage and contamination of the oil.

[0030] Embodiment 5: Intelligent monitoring and adjustment system

[0031] To further improve the reliability and stability of the gearbox, an intelligent monitoring and regulation system is introduced in this embodiment. The system includes sensors and a control unit (not shown). The sensors are responsible for monitoring key parameters such as temperature, pressure, and rotational speed inside the gearbox and transmitting the monitoring data to the control unit in real time. The control unit then automatically adjusts the output of the hydraulic motor according to the received data to achieve more precise synchronous control. This intelligent design not only improves the transmission efficiency of the gearbox but also reduces the failure rate and maintenance cost.

[0032] Embodiment 6: Alarm Module

[0033] Based on Embodiment 5, an alarm module is added to the intelligent monitoring and regulation system in this embodiment. When the sensors detect abnormal parameters, such as too high temperature, abnormal pressure, or rotational speed fluctuations, the alarm module will immediately issue an alarm to prompt the operator to take corresponding measures. This design effectively improves the safety and reliability of the gearbox.

[0034] Embodiment 7: Lightweight Design

[0035] In this embodiment, the housing 1 is made of HT250 material, the blind cover 4 is made of 45# steel, the synchronous pulley 2 and the intermediate gear 9 are made of 20CrMnTi alloy, and the remaining components are all commercially available standardized components.

[0036] In other embodiments, to reduce the overall weight of the gearbox and improve energy efficiency, high-strength lightweight materials are used to manufacture the housing and transmission components. These materials include, but are not limited to, aluminum alloy and carbon fiber composite materials. They not only have excellent strength and rigidity but also have low density and weight. Through this design, the overall weight of the gearbox is significantly reduced, and at the same time, the energy efficiency is improved.

[0037] Embodiment 8: Modular Design

[0038] To facilitate maintenance and upgrade, in this embodiment, both the synchronous unit a and the transmission unit b are designed as replaceable modular structures. This design allows the operator to flexibly configure each part of the gearbox according to actual needs, thereby reducing the maintenance time and cost. At the same time, the modular design also improves the expandability and upgradeability of the gearbox.

[0039] Embodiment 9: Thermal Management Optimization

[0040] In order to effectively control the temperature rise inside the gearbox and ensure long-term stable operation, a heat dissipation channel is designed inside the gearbox and a cooling system is integrated in this embodiment. Through reasonable layout and dimension design, the heat dissipation channel can effectively take away the heat inside the gearbox and dissipate it into the external environment. The cooling system further reduces the temperature inside the gearbox by circulating the coolant. This optimized thermal management structure not only improves the heat dissipation efficiency of the gearbox but also extends its service life.

[0041] In the description of this specification, the description with reference to terms such as "some embodiments", "some examples", "exemplarily", "examples", "preferably", or "further" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present application.

Claims

1. A synchronous transmission gearbox for a hydraulic motor, characterized in that, Comprising: A housing (1), an accommodation space being formed inside the housing (1); A plurality of synchronization units (a), the synchronization units (a) being installed in the accommodation space, each synchronization unit (a) including a synchronizing wheel (2) and a spline drive structure (3), the synchronizing wheel (2) being capable of being in transmission connection with the output shaft of a hydraulic motor through the spline drive structure (3); A plurality of transmission units (b), the plurality of transmission units (b) being installed side by side in the accommodation space, each transmission unit (b) including a pin shaft (7), a needle roller bearing (8) and an idler gear (9), both ends of the pin shaft (7) being fixedly installed on the housing (1), the idler gear (9) being installed on the pin shaft (7) through the needle roller bearing (8), the idler gears (9) between two adjacent transmission units (b) being in meshing transmission, and through the meshing transmission of the plurality of idler gears (9), synchronous transmission between the two synchronizing wheels (2) is achieved, thereby achieving synchronous transmission between a plurality of hydraulic motors.

2. The synchronous transmission gearbox according to claim 1, characterized in that, One end of the housing (1) is provided with an opening at a position corresponding to the synchronization unit (a) for connecting a hydraulic motor, and the other end is provided with a blank cover (4) to achieve the sealing of oil; both ends of the housing (1) are designed to be closed at positions corresponding to the transmission units (b).

3. The synchronous transmission gearbox according to claim 2, wherein A first seal (6) is provided between the blank cover (4) and the housing (1), and a second seal (10) is provided between the housing (1) and the pin shaft (7).

4. The synchronous transmission gearbox according to claim 2, characterized in that, A plurality of connectors (11) are provided on the end face of the housing (1) at a position corresponding to the synchronization unit (a).

5. The synchronous transmission gearbox according to claim 4, characterized in that, A third seal (12) is provided on the end face of the housing (1) facing away from the blank cover (4).

6. The synchronous transmission gearbox according to claim 1, characterized in that, The housing (1) is made of HT250, and the idler gear (9) and the synchronizing wheel (2) are made of 20CrMnTi.

7. The synchronous transmission gearbox according to claim 1, wherein The synchronization unit (a) and the transmission unit (b) are designed as a detachable and replaceable modular structure.

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