Self-adjusting guide and damping device for a down-pressure slider

Abstract

The application relates to the field of automobile air conditioner compressor guide sliding blocks, and discloses a guide buffer device of a self-adjusting lower pressing sliding block. In the application, a base, a guide column, a lower pressing sliding block, a buffer assembly and a self-adjusting driving piece are arranged, the guide column is vertically fixed on the base, the lower pressing sliding block is sleeved on the guide column and can slide axially along the guide column, the buffer assembly is arranged between the lower pressing sliding block and the base, and the self-adjusting driving piece is installed on one side of the lower pressing sliding block away from the buffer assembly. Through the precise sliding cooperation of the guide column and the lower pressing sliding block, and in combination with the real-time position adjustment of the self-adjusting driving piece according to the feedback of a pressure sensor, the application can avoid the deviation or jamming of the sliding block during movement, the spring and the damper of the buffer assembly can synergistically act to effectively absorb the movement impact, reduce vibration noise, and guarantee the stable operation of the automobile air conditioner compressor.

Description

Technical Field

[0001] This application belongs to the field of automotive air conditioning compressor guide slide technology, specifically a guide buffer device for a self-adjusting downward sliding block. Background Technology

[0002] During the operation of an automotive air conditioning compressor, the lower slider, as a key moving component, needs to move precisely along a specific trajectory to regulate the pressure in the compression chamber. Its guiding accuracy and buffering performance directly affect the compressor's operating efficiency and service life. Traditional guiding and buffering devices mostly use a fixed track combined with a single spring structure.

[0003] However, the guide structure is prone to gaps due to assembly errors or long-term wear, which can cause the slider to deviate, leading to increased friction between components and even jamming. In particular, under complex working conditions such as bumpy car rides, stability is even more difficult to guarantee. Utility Model Content

[0004] The purpose of this application is to provide a guide buffer device for a self-adjusting downward sliding block in order to solve the problems mentioned above.

[0005] The technical solution adopted in this application is as follows: a guide buffer device for a self-adjusting pressing slider, comprising a base, a guide post, a pressing slider, a buffer assembly and a self-adjusting drive component, wherein the guide post is vertically fixed on the base, the pressing slider is sleeved on the guide post and can slide along the axial direction of the guide post, the buffer assembly is disposed between the pressing slider and the base, and the self-adjusting drive component is installed on the side of the pressing slider away from the buffer assembly.

[0006] In a preferred embodiment, the outer wall of the guide post is provided with an axial guide groove, and the inner wall of the pressing slider is provided with a guide protrusion adapted to the guide groove, the guide protrusion being embedded in the guide groove to form a sliding fit.

[0007] In a preferred embodiment, the buffer assembly includes a buffer sleeve, a buffer spring, and a limiting plate. The buffer sleeve is fixed to the base, the buffer spring is sleeved on the outside of the buffer sleeve, one end of the buffer spring abuts against the base, and the other end of the buffer spring is connected to the limiting plate. The limiting plate contacts the bottom of the pressing slider.

[0008] In a preferred embodiment, the self-adjusting drive includes a servo motor, a ball screw, and a screw nut. The servo motor is fixed to the compressor housing, the ball screw is connected to the output shaft of the servo motor, and the screw nut is sleeved on the ball screw and fixed to the downward sliding block.

[0009] In a preferred embodiment, a pressure sensor assembly is provided at the bottom of the pressing slider, and the pressure sensor assembly is electrically connected to the control system of the self-adjusting drive.

[0010] In a preferred embodiment, the top of the guide post is provided with a limiting block, and the outer diameter of the limiting block is larger than the diameter of the guide hole of the pressing slider, and the surface of the limiting block is provided with a rubber buffer pad.

[0011] In a preferred embodiment, the sliding surface of the pressing slider is provided with a grease storage groove, and the grease storage groove is filled with solid grease.

[0012] In a preferred embodiment, the buffer assembly further includes a damper, which is arranged parallel to the buffer spring. The cylinder of the damper is fixed to the base, and the top end of the piston rod is connected to it.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are: 1. Through the precise sliding cooperation between the guide column and the lower slider, combined with the self-adjusting drive component to adjust the position in real time according to the feedback of the pressure sensor, the slider can avoid deviation or jamming during the movement. At the same time, the spring and damper of the buffer component work together to effectively absorb the impact of movement, reduce vibration and noise, and ensure the stable operation of the automotive air conditioning compressor.

[0014] 2. The self-adjusting drive can automatically adjust the pressure of the lower slider according to the changes in the compressor's workload. The buffer component can be adapted to different working conditions by replacing the spring or adjusting the damper, so that the device can maintain a good guiding and buffering effect in complex scenarios such as compressor start-up and shutdown and load fluctuations, thus extending the service life of the compressor's core components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the guide buffer device for the self-adjusting downward sliding block of this application; Figure 2 This is a schematic diagram of a partial cross-sectional view of the guiding and mating structure in this application; Figure 3 This is a schematic diagram of the exploded structure of the buffer component in this application; Figure 4 This is a schematic diagram of the self-adjusting drive structure in this application; Figure 5 This is a schematic diagram of the guide block pressure sensing component structure in this application.

[0016] The markings in the diagram are: 1. Base; 2. Guide post; 3. Press-down slider; 4. Buffer assembly; 5. Self-adjusting drive component; 6. Guide groove; 7. Guide protrusion; 8. Buffer sleeve; 9. Buffer spring; 10. Limit plate; 11. Ball screw; 12. Screw nut; 13. Pressure sensor assembly; 14. Limit block; 15. Rubber buffer pad; 16. Grease reservoir; 17. Solid grease; 18. Damper; 19. Servo motor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Example:

[0018] Reference Figure 1-3 A self-adjusting pressure slider guide buffer device includes a base 1, a guide post 2, a pressure slider 3, a buffer assembly 4, and a self-adjusting drive component 5. The guide post 2 is vertically fixed on the base 1, the pressure slider 3 is sleeved on the guide post 2 and can slide along the axial direction of the guide post 2, the buffer assembly 4 is disposed between the pressure slider 3 and the base 1, and the self-adjusting drive component 5 is installed on the side of the pressure slider 3 away from the buffer assembly. Through the precise sliding cooperation between the guide post and the pressure slider, combined with the real-time position adjustment of the self-adjusting drive component based on the feedback from the pressure sensor, the slider can avoid deviation or jamming during movement. At the same time, the spring and damper of the buffer assembly work together to effectively absorb the impact of movement, reduce vibration and noise, and ensure the stable operation of the automotive air conditioning compressor.

[0019] Reference Figure 1-5 The outer wall of the guide post 2 is provided with an axial guide groove 6, and the inner wall of the pressing slider 3 is provided with a guide protrusion 7 that is adapted to the guide groove 6. The guide protrusion 7 is embedded in the guide groove 6 to form a sliding fit. The 6 and 7, which are fitted on the contact surfaces of 2 and 3, can play a guiding and assisting role in the sliding of the structure.

[0020] Reference Figure 1-3 The buffer assembly 4 includes a buffer sleeve 8, a buffer spring 9, and a limiting plate 10. The buffer sleeve 8 is fixed on the base, and the buffer spring 9 is sleeved on the outside of the buffer sleeve 8. One end of the buffer spring 9 abuts against the base 1, and the other end of the buffer spring 9 is connected to the limiting plate 10. The limiting plate 10 contacts the bottom of the pressing slider 3. Together with the buffer assembly 4, the buffer sleeve 8, the buffer spring 9, and the limiting plate 10, the buffer assembly 4 can play a buffering role for the device. At the same time, the stiffness coefficient of the buffer spring 9 can be adjusted by replacing it with a spring of different specifications.

[0021] Reference Figure 1-4The self-adjusting drive component 5 includes a servo motor 19, a ball screw 11, and a screw nut 12. The servo motor 19 is fixed on the compressor housing. The ball screw 11 is connected to the output shaft of the servo motor 19. The screw nut 12 is sleeved on the ball screw 11 and fixed to the lowering slider 3. The servo motor 19 drives the ball screw 11 to rotate, thereby moving the screw nut 12 and the lowering slider 3 along the guide post 2.

[0022] Reference Figure 1-5 The bottom of the pressing slider 3 is provided with a pressure sensor assembly 13. The pressure sensor assembly 13 is electrically connected to the control system of the self-adjusting drive 5. Together with the pressure sensor assembly 13 at the bottom of the pressing slider 3 and the self-adjusting drive 5, the pressure value of the pressing slider on the buffer assembly can be detected in real time and fed back to the control system. The control system adjusts the output power of the self-adjusting drive according to the pressure value.

[0023] Reference Figure 1 The top of the guide post 2 is provided with a limiting block 14, and the outer diameter of the limiting block 14 is larger than the diameter of the guide hole of the pressing slider 3. The surface of the limiting block 14 is provided with a rubber buffer pad 15. The limiting block 14 and the rubber buffer pad 15 at the top of 2 can play the role of limiting and buffering protection.

[0024] Reference Figure 1-5 The sliding surface of the lower slider 3 is provided with a grease storage groove 16, which is filled with solid grease 17. The grease storage groove 16 and solid grease 17 on the sliding guide surface can be evenly distributed along the sliding direction, thereby playing a lubricating role.

[0025] Reference Figure 1-3 The buffer assembly 4 also includes a damper 18, which is arranged parallel to the buffer spring 9. The cylinder of the damper 18 is fixed to the base, and the top of the piston rod is connected to 10. The damping coefficient of the buffer assembly 4 and the damper 18 can be adjusted by adjusting the valve.

[0026] The implementation principle of the guide buffer device for the self-adjusting downward sliding block of this application is as follows: When the device is working, the servo motor of the self-adjusting drive unit drives the pressing slider to move axially along the guide column through the ball screw transmission. The guide groove of the guide column and the guide convex strip of the slider ensure accurate motion trajectory. When the pressing slider contacts the internal components of the compressor, the buffer spring of the buffer assembly is compressed to generate elastic force, and the damper provides damping force, which together buffers the impact force. The pressure sensor detects the pressure at the bottom of the slider in real time and transmits it to the control system. If the pressure exceeds the preset range, the control system drives the servo motor to adjust the slider position until the pressure is within a reasonable range. The limit block can prevent the slider from moving excessively, and the grease storage groove reduces sliding friction, thereby realizing the self-adjusting guidance and buffering function of the pressing slider, which is suitable for the working requirements of automotive air conditioning compressors.

[0027] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A guide buffer device for a self-adjusting pressing slider, comprising a base (1), a guide post (2), a pressing slider (3), a buffer assembly (4), and a self-adjusting drive component (5), characterized in that: The guide post (2) is vertically fixed on the base (1), the pressing slider (3) is sleeved on the guide post (2) and can slide along the axial direction of the guide post (2), the buffer assembly (4) is disposed between the pressing slider (3) and the base (1), and the self-adjusting drive component (5) is installed on the side of the pressing slider (3) away from the buffer assembly.

2. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The outer wall of the guide post (2) is provided with an axial guide groove (6), and the inner wall of the pressing slider (3) is provided with a guide protrusion (7) that is adapted to the guide groove (6). The guide protrusion (7) is embedded in the guide groove (6) to form a sliding fit.

3. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The buffer assembly (4) includes a buffer sleeve (8), a buffer spring (9), and a limiting plate (10). The buffer sleeve (8) is fixed on the base. The buffer spring (9) is sleeved on the outside of the buffer sleeve (8). One end of the buffer spring (9) abuts against the base (1), and the other end of the buffer spring (9) is connected to the limiting plate (10). The limiting plate (10) contacts the bottom of the pressing slider (3).

4. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The self-adjusting drive component (5) includes a servo motor (19), a ball screw (11) and a screw nut (12). The servo motor (19) is fixed on the compressor housing. The ball screw (11) is connected to the output shaft of the servo motor (19). The screw nut (12) is sleeved on the ball screw (11) and fixed to the lowering slider (3).

5. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The bottom of the pressing slider (3) is provided with a pressure sensor assembly (13), which is electrically connected to the control system of the self-adjusting drive (5).

6. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The guide post (2) is provided with a limiting block (14) at the top, and the outer diameter of the limiting block (14) is larger than the diameter of the guide hole of the pressing slider (3). The surface of the limiting block (14) is provided with a rubber buffer pad (15).

7. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The sliding surface of the pressing slider (3) is provided with a grease storage groove (16), and the grease storage groove (16) is filled with solid grease (17).

8. The guide buffer device for a self-adjusting downward pressing slider as described in claim 1, characterized in that: The buffer assembly (4) also includes a damper (18), and the damper (18) is arranged in parallel with the buffer spring (9). The cylinder of the damper (18) is fixed to the base, and the top of the piston rod is connected to (10).

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