Damped stepper motor

Abstract

The present application relates to the technical field of damping, in particular to a damping step motor. The damping step motor comprises a support, a first cavity is formed in the support, an oil inlet hole and an oil outlet hole are formed in the support and communicate with the first cavity, a fixed plate is fixed in the first cavity, a sliding plate is slidably connected to the first cavity on the side of the fixed plate, a plurality of through holes are formed in the fixed plate and the sliding plate, an elastic ring is arranged between the fixed plate and the sliding plate and in contact with the fixed plate and the sliding plate, a fixed rod is fixed to the lower end of the sliding plate, a telescopic step motor is fixed in the support on the side of the first cavity, the telescopic step motor is connected with the fixed rod through a guide assembly, and the sliding plate can be driven to move close to the fixed plate and press the elastic ring through the fixed rod during the movement of the guide assembly into the first cavity.

Description

Technical Field

[0001] This invention relates to the field of damping technology, specifically to damped stepper motors. Background Technology

[0002] Currently, with the rapid development of the automotive industry, problems such as traffic congestion, complex road conditions, and frequent traffic accidents have emerged, bringing greater driving pressure and safety risks to drivers. Many car manufacturers and research institutions are committed to developing driver assistance technologies, such as blind spot monitoring, automatic parking, and lane departure warning.

[0003] However, these technologies are often based on direct control of vehicle drive components or servo components, requiring either a complete switch from manual to autonomous driving mode or giving the driver a feeling of being out of control in manual driving mode. Both driverless and manual driving rely on unified road condition judgment rules. While manual driving offers flexibility in strategy, it is relatively weak in environmental perception, information gathering, and rapid response. It often leads to unclear judgment of road and vehicle conditions, resulting in overly aggressive driving speeds without realizing it, thus threatening driver safety.

[0004] While warning messages can alert drivers to driving risks, excessive warning messages can hinder drivers' concentration.

[0005] Existing solutions for improving driving safety involve acquiring vehicle accelerator pedal depressing information; generating vehicle accelerator status information based on the current depressed state of the accelerator pedal; acquiring vehicle driving scenario information; generating safe accelerator status information based on the current driving scenario; generating damping stepper motor control information based on the current driving scenario and current accelerator status; controlling the accelerator pedal depressing state based on the damping stepper motor control information; and generating a warning message if the current accelerator status exceeds the safe accelerator status. This solution uses road and vehicle condition information to generate a safe accelerator pedal opening. When the accelerator is over-depressed, a warning message is issued, and the damping stepper motor outputs resistance to create a "limit" on the accelerator pedal. In this solution, the damping stepper motor needs to have high reliability; therefore, a stable damping stepper motor needs to be designed. Summary of the Invention

[0006] The technical problem to be solved by this invention is to provide a damped stepper motor with good stability, low cost, and easy maintenance.

[0007] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0008] A damped stepper motor includes a support member, a first cavity inside the support member, an oil inlet and an oil outlet communicating with the first cavity, a fixed plate fixed inside the first cavity, a sliding plate slidably connected to one side of the first cavity of the fixed plate, multiple through holes on both the fixed plate and the sliding plate, an elastic ring between the fixed plate and the sliding plate, the elastic ring contacting the fixed plate and the sliding plate, a fixed rod fixed to the lower end of the sliding plate, a telescopic stepper motor fixed inside the support member on one side of the first cavity, the telescopic stepper motor being connected to the fixed rod through a guide assembly, the guide assembly moving into the first cavity and driving the sliding plate to approach the fixed plate and squeeze the elastic ring through the fixed rod.

[0009] Specifically, the guide assembly includes a second cavity, which is located within a support member between the telescopic stepper motor and the first cavity. A connecting plate is slidably disposed within the first cavity. The connecting plate is fixedly connected to the movable end of the telescopic stepper motor. A guide rod is fixedly disposed on the connecting plate. The end of the guide rod away from the connecting plate extends into the first cavity. The guide rod is slidably connected to the support member. A guide slope is provided at the end of the guide rod within the first cavity. The upper end of the guide slope is inclined towards the connecting plate, and the guide slope contacts the lower end of the fixed rod.

[0010] Specifically, the elastic ring is an elastic rubber ring or an elastic resin plastic ring.

[0011] Specifically, the fixed plate is located between the oil inlet and the oil outlet, and the sliding plate is located between the oil outlet and the fixed plate.

[0012] Specifically, a sliding rod is fixed on the sliding plate, the sliding rod passes through the fixed plate, the sliding rod is slidably connected to the fixed plate, and the sliding rod passes through an elastic ring.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. This invention uses a telescopic stepper motor to drive the connecting plate and guide rod to move along the axial direction of the support, thereby changing the distance between the fixed plate and the sliding plate. After the distance between the fixed plate and the sliding plate changes, the deformation of the elastic ring changes. After the deformation of the elastic ring changes, the number of through holes blocked by the elastic ring on the fixed plate and the sliding plate changes, ultimately changing the flow rate of hydraulic oil in the first cavity and realizing the change of damping magnitude.

[0015] 2. The present invention has a simple structure, low manufacturing cost, is easy to maintain, and has a stable structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention.

[0017] The names of the parts in the attached diagram are:

[0018] 1. Support component; 2. Oil inlet; 3. Oil outlet; 4. Fixing plate; 5. Sliding plate; 6. Sliding rod; 7. Elastic ring; 8. Fixing rod; 9. Guide rod; 10. Connecting plate; 11. Telescopic stepper motor; 12. First cavity; 13. Second cavity. Detailed Implementation

[0019] like Figure 1 As shown, the damped stepper motor includes a support member 1, a first cavity 12 is provided inside the support member 1, and an oil inlet 2 and an oil outlet 3 are provided on the support member 1 that communicate with the first cavity 12.

[0020] A fixing plate 4 is fixed inside the first cavity 12, and the fixing plate 4 is located between the oil inlet hole 2 and the oil outlet hole 3. A sliding plate 5 is slidably connected inside the first cavity 12 on one side of the fixing plate 4, and the sliding plate 5 is located between the oil outlet hole 3 and the fixing plate 4. Both the fixing plate 4 and the sliding plate 5 have multiple through holes.

[0021] An elastic ring 7 is provided between the fixed plate 4 and the sliding plate 5. The elastic ring 7 is an elastic rubber ring or an elastic resin plastic ring. The elastic ring 7 is in contact with the fixed plate 4 and the sliding plate 5.

[0022] A sliding rod 6 is fixed on the sliding plate 5. The sliding rod 6 passes through the fixed plate 4 and is slidably connected to the fixed plate 4. The sliding rod 6 passes through the elastic ring 7.

[0023] A fixing rod 8 is fixed to the lower end of the sliding plate 5.

[0024] A telescopic stepper motor 11 is fixed inside the support member 1 on one side of the first cavity 12. The telescopic stepper motor 11 is connected to the fixed rod 8 through the guide assembly. During the movement of the guide assembly into the first cavity 12, it can drive the sliding plate 5 to approach the fixed plate 4 and squeeze the elastic ring 7 through the fixed rod 8.

[0025] The guiding assembly includes a second cavity 13. The second cavity 13 is formed within a support member 1 between the telescopic stepper motor 11 and the first cavity 12. A connecting plate 10 is slidably disposed within the first cavity 12, and the connecting plate 10 is fixedly connected to the movable end of the telescopic stepper motor 11.

[0026] A guide rod 9 is fixed on the connecting plate 10. One end of the guide rod 9 away from the connecting plate 10 extends into the first cavity 12. The guide rod 9 is slidably connected to the support member 1. A guide slope is provided at the end of the guide rod 9 in the first cavity 12. The upper end of the guide slope is inclined towards the connecting plate 10. The guide slope contacts the lower end of the fixed rod 8.

[0027] In use, by controlling the telescopic stepper motor 11, the movable end of the telescopic stepper motor 11 drives the connecting plate 10 and the guide rod 9 to move towards the first cavity 12. During the movement of the guide rod 9 into the first cavity 12, under the guidance of the guide slope, the fixed rod 8 and the sliding plate 5 gradually approach the fixed plate 4.

[0028] As the fixed rod 8 and the sliding plate 5 gradually approach the fixed plate 4, the elastic ring 7 is squeezed and deformed. After the elastic ring 7 is squeezed and deformed, its diameter increases. After the diameter of the elastic ring 7 increases, the number of through holes on the fixed plate 4 and the sliding plate 5 blocked by the elastic ring 7 increases.

[0029] The movable end of the telescopic stepper motor 11 drives the connecting plate 10 and the guide rod 9 to move away from the first cavity 12. As the guide rod 9 moves outward from the first cavity 12, under the elastic force of the elastic ring 7, the fixed rod 8 and the sliding plate 5 gradually move away. As the fixed rod 8 and the sliding plate 5 gradually move away, the diameter of the elastic ring 7 decreases. After the diameter of the elastic ring 7 decreases, the number of through holes on the fixed plate 4 and the sliding plate 5 blocked by the elastic ring 7 decreases.

[0030] By changing the number of through holes on the elastic ring 7 blocking the fixed plate 4 and the sliding plate 5, the flow rate of hydraulic oil in the first cavity 12 can be adjusted, thereby achieving the adjustment of the damping magnitude.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A damped stepper motor, including a support member (1), characterized in that, A first cavity (12) is provided inside the support member (1). An oil inlet (2) and an oil outlet (3) communicating with the first cavity (12) are provided on the support member (1). A fixing plate (4) is fixed inside the first cavity (12). A sliding plate (5) is slidably connected inside the first cavity (12) on one side of the fixing plate (4). Multiple through holes are provided on both the fixing plate (4) and the sliding plate (5). An elastic ring (7) is provided between the fixing plate (4) and the sliding plate (5). The elastic ring (7) contacts the fixing plate (4) and the sliding plate (5). A fixing rod (8) is fixed at the lower end of the sliding plate (5). A telescopic stepper motor (11) is fixed inside the support member (1) on one side of the first cavity (12). The telescopic stepper motor (11) is connected to the fixing rod (8) through a guide assembly. During the movement of the guide assembly into the first cavity (12) The sliding plate (5) can be driven to approach the fixed plate (4) and squeeze the elastic ring (7) by the fixed rod (8); the guide assembly includes a second cavity (13), which is opened in the support member (1) between the telescopic stepper motor (11) and the first cavity (12). A connecting plate (10) is slidably arranged in the first cavity (12). The connecting plate (10) is fixedly connected to the movable end of the telescopic stepper motor (11). A guide rod (9) is fixed on the connecting plate (10). The end of the guide rod (9) away from the connecting plate (10) extends into the first cavity (12). The guide rod (9) is slidably connected to the support member (1). A guide slope is opened at the end of the guide rod (9) in the first cavity (12). The upper end of the guide slope is inclined towards the connecting plate (10). The guide slope contacts the lower end of the fixed rod (8).

2. The damped stepper motor according to claim 1, characterized in that, The elastic ring (7) is an elastic rubber ring or an elastic resin plastic ring.

3. The damped stepper motor according to claim 1, characterized in that, The fixed plate (4) is located between the oil inlet (2) and the oil outlet (3), and the sliding plate (5) is located between the oil outlet (3) and the fixed plate (4).

4. The damped stepper motor according to claim 1, characterized in that, A sliding rod (6) is fixed on the sliding plate (5). The sliding rod (6) passes through the fixed plate (4) and is slidably connected to the fixed plate (4). The sliding rod (6) passes through the elastic ring (7).

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