Device combining speed reducing motor with hydraulic damping

Abstract

The utility model relates to the technical field of damping devices, and discloses a gear motor and hydraulic damping combined device which comprises a supporting seat and a piston rod, an installation groove is formed in the top of the supporting seat, a supporting cylinder is fixedly installed on the inner bottom wall of the installation groove, and the other end of the piston rod is fixedly connected with a transmission frame. The two sides of the inner side wall of the mounting groove are rotationally connected with driving gears through rotating shafts. According to the device combining the speed reducing motor with the hydraulic damper, the positioning seat and the driving gear are arranged in a matched mode, the driving gear can be driven to rotate when the positioning seat is subjected to downward pressure, the diameter of the driven gear is larger than that of the driving gear, and then the speed reducing effect is achieved; the transmission frame and the piston rod can be driven to move downwards, then the hydraulic damping effect is achieved through the supporting barrel and the piston rod, and due to the speed reduction transmission effect, the impact resisting stroke of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of damping device technology, specifically a device for combining a geared motor with hydraulic damping. Background Technology

[0002] In modern industrial equipment and mechanical systems, damping devices are widely used in shock absorption and vibration control. Especially in scenarios requiring high-precision motion control and stability assurance, the demand for composite devices that combine deceleration and damping characteristics is increasing. Traditional hydraulic damping devices primarily achieve liquid damping through the reciprocating motion of a piston rod within a damping cylinder. However, when dealing with high-frequency impacts or heavy loads, they often lack an effective deceleration transmission mechanism, resulting in uneven damping force output and insufficient impact stroke control precision, making it difficult to meet stability requirements under complex operating conditions.

[0003] In existing technologies, although some damping devices introduce gear transmission mechanisms to achieve deceleration, they often suffer from problems such as low structural integration and inconvenient adjustment of the reduction ratio. For example, traditional gear reduction mechanisms and hydraulic damping units are often set up independently, resulting in a large overall device size, serious transmission efficiency loss, and the inability to effectively extend the damping stroke through optimized design of the reduction ratio. In addition, under impact loads, the deceleration and damping units without linkage design are prone to transmission disengagement or damping lag, affecting the impact resistance and service life of the device.

[0004] To address the aforementioned technical issues, existing technologies attempt to structurally integrate speed reduction transmission with hydraulic damping. However, there is still room for improvement in areas such as gear meshing accuracy, flow control of the hydraulic damping medium, and synchronization during the linkage process. In particular, in application scenarios where it is necessary to extend the damping stroke and improve the impact energy absorption efficiency through a speed reduction mechanism, how to achieve efficient coordination between speed reduction transmission and hydraulic damping has become a pressing technical challenge in this field. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In order to overcome the above-mentioned defects of the prior art, this utility model provides a device for combining a geared motor with hydraulic damping. Through the innovative structural design of the gear reduction mechanism and the hydraulic damping unit, the device achieves an organic combination of speed reduction transmission and damping effect, effectively improving the device's impact resistance stroke and damping performance stability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for a geared motor combined with hydraulic damping, comprising a support base and a piston rod. The top of the support base is provided with an installation groove, and a support cylinder is fixedly installed on the inner bottom wall of the installation groove. A transmission frame is fixedly connected to the other end of the piston rod. Both sides of the inner sidewall of the installation groove are rotatably connected to a drive gear via a rotating shaft. Both sides of the inner sidewall of the installation groove, located on the side of the drive gear, are rotatably connected to a driven gear via a rotating shaft. A drive gear is fixedly connected to the outer surface of the driven gear. A positioning seat is slidably connected to the inner sidewall of the installation groove.

[0009] Optionally, a compression spring is fixedly installed on the inner bottom wall of the support cylinder, and the top of the compression spring contacts the bottom end of the piston rod.

[0010] Optionally, a piston rod is slidably connected to the inner wall of the support cylinder, and a drain hole is provided at the end of the piston rod on the inner wall of the support cylinder.

[0011] Optionally, the transmission frame has locking teeth on both sides of its outer surface, and the outer surface of the drive gear meshes with the outer surface of the locking teeth.

[0012] Optionally, the outer surface of the driving gear meshes with the outer surface of the driven gear.

[0013] Optionally, the inner wall of the positioning seat meshes with the outer surface of the drive gear.

[0014] (III) Beneficial Effects

[0015] This utility model provides a device for combining a geared motor with hydraulic damping, which has the following beneficial effects:

[0016] This geared motor combined with a hydraulic damping device, through the cooperation of the positioning seat and the driving gear, can drive the driving gear to rotate when the positioning seat is subjected to downward pressure. The driven gear has a larger diameter than the driving gear, thus achieving a deceleration effect. The drive gear, which rotates synchronously with the angular velocity of the driven gear, can drive the transmission frame and piston rod to move downward, thereby achieving a hydraulic damping effect with the help of the support cylinder and piston rod. Furthermore, due to the deceleration transmission effect, the stroke of the device can be increased to resist impact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall installation structure of this utility model;

[0018] Figure 2 This is an overall sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the piston rod mounting structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the active gear mating structure of this utility model.

[0021] In the diagram: 1. Support base; 2. Mounting groove; 3. Support cylinder; 4. Compression spring; 5. Piston rod; 6. Drain hole; 7. Transmission frame; 8. Clamping gear; 9. Driving gear; 10. Driven gear; 11. Drive gear; 12. Positioning base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a device for combining a geared motor with hydraulic damping.

[0024] The device includes a support base 1 and a piston rod 5. The support base 1 has a mounting groove 2 at its top. A support cylinder 3 is fixedly mounted on the inner bottom wall of the mounting groove 2. A transmission frame 7 is fixedly connected to the other end of the piston rod 5. Both sides of the inner wall of the mounting groove 2 are rotatably connected to a drive gear 9 via a rotating shaft. Both sides of the inner wall of the mounting groove 2, located on one side of the drive gear 9, are rotatably connected to a driven gear 10 via a rotating shaft. A drive gear 11 is fixedly connected to the outer surface of the driven gear 10. A positioning seat 12 is slidably connected to the inner wall of the mounting groove 2.

[0025] In this embodiment, the support base 1 serves as the basic load-bearing component of the entire device, providing an installation reference surface. The mounting groove 2 on the top provides installation space for core components such as the internal gear transmission mechanism and hydraulic damping unit, ensuring the relative position accuracy and motion guidance of each component. The mounting groove 2 integrates the cavity structure for installing core components such as the support cylinder 3, gear set, and positioning seat 12. The rotating shafts of the driving gear 9 and driven gear 10 are fixed through the rotating shaft mounting holes on the inner wall, and the linear motion guidance of the positioning seat 12 is achieved through the sliding guide rail on the side wall, ensuring the stability of the mechanical transmission. The support cylinder 3 constitutes the working cavity of the hydraulic damping, accommodating the piston rod 5 and compression spring 4. The wall provides linear motion guidance for the piston rod 5, and works with the drain hole 6 to achieve damped flow of the hydraulic medium. The bottom is fixed with a compression spring 4 to provide reset elastic force. The piston rod 5 is the core moving part of hydraulic damping. It is connected to the transmission frame 7 and reciprocates in the support cylinder 3. The drain hole 6 at the end controls the flow rate of the hydraulic medium during reciprocating motion, forming a damping force. The bottom end contacts the compression spring 4 and resets through the spring after the impact load disappears. The input stage gear of the drive gear 9 is a reduction transmission gear that meshes with the inner wall of the positioning seat 12. It is driven to rotate when the positioning seat 12 slides downward. Through the meshing relationship, linear motion is converted into rotational motion, serving as the power input end of the reduction transmission. The driven gear 10 is an intermediate gear in the reduction transmission. It meshes with the driving gear 9 and has a larger diameter than the driving gear 9. It achieves speed reduction and torque increase through the gear ratio, reducing the output speed and increasing the torque, providing stable low-speed rotation for the drive gear 11. The drive gear 11 is coaxially fixed with the driven gear 10. The output stage transmission gear rotates synchronously with the driven gear 10. Through meshing with the locking teeth 8 of the transmission frame 7, the rotational motion is converted into the linear motion of the transmission frame 7, driving the piston rod 5 to achieve long-stroke damped motion.

[0026] In the above embodiment, as a preferred option, a compression spring 4 is fixedly installed on the inner bottom wall of the support cylinder 3. The top of the compression spring 4 is in contact with the bottom end of the piston rod 5. The compression spring 4 provides an energy storage component for elastic restoring force. When the external impact load decreases or disappears, it pushes the piston rod 5 to reset upward, and in conjunction with hydraulic damping, it realizes bidirectional motion control of the buffering process.

[0027] In the above embodiment, as a preferred option, a piston rod 5 is slidably connected to the inner wall of the support cylinder 3. A drain hole 6 is opened at the end of the piston rod 5 on the inner wall of the support cylinder 3. The hydraulic medium flow channel is opened at the end of the piston rod 5 through the drain hole 6. The flow rate of hydraulic oil is controlled by the hole diameter design to form viscous damping force, thereby realizing the absorption of impact energy and vibration attenuation.

[0028] In the above embodiment, as a preferred solution, both sides of the outer surface of the transmission frame 7 are provided with locking teeth 8, and the outer surface of the drive gear 11 meshes with the outer surface of the locking teeth 8. Through the rack structure of the locking teeth 8 on the outer surface of the transmission frame 7, meshing with the drive gear 11, the efficient conversion between gear rotational motion and linear motion is realized, ensuring the motion synchronization between the transmission frame 7 and the drive gear 11.

[0029] In the above embodiment, as a preferred option, the outer surface of the driving gear 9 meshes with the outer surface of the driven gear 10. The intermediate gear that is driven by the driven gear 10 for speed reduction meshes with the driving gear 9. The intermediate gear has a larger diameter than the driving gear 9. The speed reduction and torque increase are achieved through the gear ratio, which reduces the output speed and increases the torque, providing stable low-speed rotation for the drive gear 11.

[0030] In the above embodiments, as a preferred option, the inner sidewall of the positioning seat 12 meshes with the outer surface of the drive gear 9.

[0031] In this invention, the working steps of the device are as follows:

[0032] First, during the impact load input stage, when the external impact load acts on the positioning seat 12, the positioning seat 12 moves downward linearly along the sliding guide rail on the inner wall of the mounting groove 2. The teeth on its inner side wall drive the driving gear 9 to rotate clockwise. The driving gear 9 drives the driven gear 10 to rotate counterclockwise through meshing. Since the diameter of the driven gear 10 is larger than that of the driving gear 9, the speed of the driven gear 10 is reduced to 1 / i of that of the driving gear 9, and the torque is synchronously amplified by i times. The driving gear 11, which is coaxial with the driven gear 10, rotates counterclockwise synchronously. Through meshing with the locking teeth 8 on both sides of the transmission frame 7, the rotational motion is converted into the downward linear motion of the transmission frame 7.

[0033] Secondly, during the hydraulic damping execution stage, the transmission frame 7 drives the piston rod 5 to move downward within the support cylinder 3. The drain hole 6 at the end of the piston rod 5 generates damping force through the viscous flow of hydraulic oil, absorbing impact energy and converting it into heat energy. The compression spring 4 at the bottom of the support cylinder 3 is compressed, storing elastic potential energy to assist in buffering the impact load.

[0034] Then, when the impact load decreases or disappears, the compression spring 4 releases its elastic potential energy to push the piston rod 5 upward to reset. The hydraulic oil flows in the opposite direction through the drain hole 6, forming a reset damping force to prevent the device from rebounding too much. The piston rod 5 drives the transmission frame 7 to move upward, and drives the gear 11 to rotate clockwise. Through the meshing of the driven gear 10 and the driving gear 9, the positioning seat 12 is driven to slowly reset upward to the initial position.

[0035] 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. A device for combining a geared motor with hydraulic damping, comprising a support base (1) and a piston rod (5), characterized in that: The top of the support base (1) is provided with an installation groove (2). The inner bottom wall of the installation groove (2) is fixedly installed with a support cylinder (3). The other end of the piston rod (5) is fixedly connected with a transmission frame (7). Both sides of the inner side wall of the installation groove (2) are rotatably connected with a drive gear (9) through a rotating shaft. Both sides of the inner side wall of the installation groove (2) located on one side of the drive gear (9) are rotatably connected with a driven gear (10) through a rotating shaft. The outer surface of the driven gear (10) is fixedly connected with a drive gear (11). The inner side wall of the installation groove (2) is slidably connected with a positioning seat (12).

2. The device for combining a geared motor with hydraulic damping according to claim 1, characterized in that: A compression spring (4) is fixedly installed on the inner bottom wall of the support cylinder (3), and the top of the compression spring (4) is in contact with the bottom end of the piston rod (5).

3. The device for combining a geared motor with hydraulic damping according to claim 1, characterized in that: A piston rod (5) is slidably connected to the inner wall of the support cylinder (3), and a drain hole (6) is opened at the end of the piston rod (5) on the inner wall of the support cylinder (3).

4. The device for combining a geared motor with hydraulic damping according to claim 1, characterized in that: Both sides of the outer surface of the transmission frame (7) are provided with locking teeth (8), and the outer surface of the drive gear (11) meshes with the outer surface of the locking teeth (8).

5. The device for combining a geared motor with hydraulic damping according to claim 1, characterized in that: The outer surface of the driving gear (9) meshes with the outer surface of the driven gear (10).

6. The device for combining a geared motor with hydraulic damping according to claim 1, characterized in that: The inner wall of the positioning seat (12) meshes with the outer surface of the drive gear (9).

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