Electric push rod screw rod structure
By introducing rotating rings, gears, racks and limit columns into the electric push rod screw structure, the automatic application of lubricant oil and the stable movement of the slider are achieved, and the need to apply lubricant oil in the prior art is solved. The problem of stopping operation improves the convenience and stability of the device.
Patent Information
- Application Number
- CN202323650542.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-30
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2033-12-30
AI Technical Summary
The existing electric push rod screw structure needs to stop operating when applying lubricating oil, affecting the continuous operation of the device.
A structure including a base, motor, screw rod, rotating ring, gear groove, rack rack, oil storage tank, limit column, spring and fixing ring is designed. The screw rod is driven to rotate through the motor, using rack rack and rotation The ring matches the oil outlet hole and the limit ring through hole overlap, so that the lubricant oil is automatically applied to the screw, and the slider is prevented from colliding with the base through the limit column and the spring.
It realizes the convenient application of lubricant and the stable movement of the screw, avoids interruption of the device operation, and enhances the practicality and operation stability of the device.
Smart Images
Figure CN222363364U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric push rods, in particular to a screw rod structure of an electric push rod. Background Art
[0002] Electric push rods, also known as linear drives, are a new type of linear actuator mainly composed of motor push rods and control devices. They can be considered as an extension of the structure of rotating motors. Electric push rods are widely used.
[0003] The existing electric push rod screw structure drives the screw to rotate through the motor, so that the slider on the outer surface of the screw rod is displaced, thereby achieving the effect of pushing the object to move. In order to reduce the noise generated by the sliding of the slider, it is necessary to apply lubricating oil to the screw rod regularly. However, when applying lubricating oil, the push rod must stop running, which affects the operation of the device. Therefore, an electric push rod screw structure is needed. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an electric push rod screw structure.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric push rod screw structure, including a base, a motor is fixedly connected to the top of the base, a screw is fixedly connected to the output end of the motor, an opening is provided on the top of the screw, a connecting pipe is fixedly connected to the inside of the opening, a limiting ring is fixedly connected to the inner side wall of the end of the connecting pipe away from the opening, a through hole is provided inside the limiting ring, a limiting groove is provided on the top of the connecting pipe, a rotating ring is rotatably connected to the inside of the limiting groove, a tooth groove is provided on the outer surface of the rotating ring, a rack rack is fixedly connected to the rear end face of the base, and the front end of the rack rack is meshed with the outer surface of the tooth groove, an oil storage tank is fixedly connected to the top of the rotating ring, an oil outlet hole is provided on the top of the rotating ring, and the oil outlet hole corresponds to the position of the through hole.
[0006] Further: the internal thread of the oil storage tank is connected with a top cover, and the outer surface of the top cover is provided with anti-slip texture.
[0007] Furthermore: the inner side wall of the base is fixedly connected with a limiting column, and the number of the limiting columns is two and they are symmetrically distributed front to back.
[0008] Furthermore: a spring is sleeved on the outer surface of the limiting column, one end of the spring is fixedly connected to the inner wall of the base, the other end of the spring is fixedly connected to a fixing ring, and the fixing ring is slidably connected to the limiting column.
[0009] Furthermore: the limiting column passes through the slider, and the positions of the slider correspond to those of the fixing ring.
[0010] Further: the slider is located between two limiting columns, and a thread groove is provided inside the slider, and the opening is connected to the thread groove.
[0011] The utility model has the following beneficial effects:
[0012] 1. Compared with the prior art, by setting a rotating ring, a tooth groove and a rack frame, when in use, the motor drives the screw to rotate, thereby driving the slider to move on the outer surface of the screw, and the rack frame cooperates with the tooth groove on the outer surface of the rotating ring to push the rotating ring to rotate, so that the oil outlet hole constantly overlaps with the internal through hole of the limit ring during the rotation process, so that the lubricating oil in the oil storage tank enters the slider through the connecting pipe, thereby smearing the screw, which is beneficial to improving the convenience of screw lubrication, and there is no need to turn off the motor to avoid affecting the operation of the device.
[0013] 2. Compared with the prior art, by setting a limit column, a spring and a fixed ring, the slider is constrained by the limit column during movement, thereby enhancing the stability of its movement. When the slider approaches the inner wall of the base, it will contact the fixed ring, and the spring will be compressed by the fixed ring, thereby avoiding the slider from directly colliding with the inner wall of the base and being damaged, which is beneficial to enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0016] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 It is a partial structural exploded diagram of the utility model.
[0018] Legend:
[0019] 1. Base; 2. Motor; 3. Screw rod; 4. Limit column; 5. Spring; 6. Fixed ring; 7. Slider; 8. Opening; 9. Connecting pipe; 10. Limit groove; 11. Rotating ring; 12. Tooth groove; 13. Oil storage tank; 14. Top cover; 15. Oil outlet hole; 16. Rack rack; 17. Limit ring; 18. Through hole. DETAILED DESCRIPTION
[0020] Reference Figure 1-4The utility model provides an electric push rod screw structure: it includes a base 1, a motor 2 is fixedly connected to the top of the base 1, a screw 3 is fixedly connected to the output end of the motor 2, an opening 8 is provided on the top of the screw 3, a connecting pipe 9 is fixedly connected to the inside of the opening 8, a limiting ring 17 is fixedly connected to the inner side wall of the end of the connecting pipe 9 away from the opening 8, a through hole 18 is provided inside the limiting ring 17, a limiting groove 10 is provided on the top of the connecting pipe 9, a rotating ring 11 is rotatably connected to the inside of the limiting groove 10, a tooth groove 12 is provided on the outer surface of the rotating ring 11, a rack rack 16 is fixedly connected to the rear end surface of the base 1, and the front end of the rack rack 16 is meshed with the outer surface of the tooth groove 12, an oil storage tank 13 is fixedly connected to the top of the rotating ring 11, an oil outlet hole 15 is provided on the top of the rotating ring 11, and the oil outlet hole 15 corresponds to the position of the through hole 18, and the oil outlet hole 15 and the through hole 18 are both eccentrically installed. When in use, the motor 2 drives the screw 3 to rotate, thereby driving the slider 7 to move on the outer surface of the screw 3, and the rack 16 cooperates with the tooth groove 12 on the outer surface of the rotating ring 11 to push the rotating ring 11 to rotate, so that the oil outlet 15 constantly overlaps with the internal through hole 18 of the limit ring 17 during the rotation process, so that the lubricating oil inside the oil tank 13 enters the slider 7 through the connecting pipe 9, thereby smearing the screw 3, which is conducive to improving the convenience of lubricating the screw 3, and there is no need to turn off the motor 2 to avoid affecting the operation of the device. The slider 7 moves on the outer surface of the screw 3, so that it is convenient to apply lubricating oil to the entire outer surface of the screw 3.
[0021] The internal thread of the oil storage tank 13 is connected with a top cover 14, and the outer surface of the top cover 14 is provided with anti-skid lines. The top cover 14 is used to seal the oil storage tank 13 and facilitate the addition of lubricating oil therein.
[0022] The inner side wall of the base 1 is fixedly connected to a limiting column 4, and there are two limiting columns 4, which are symmetrically distributed front to back.
[0023] A spring 5 is sleeved on the outer surface of the limiting column 4 , one end of the spring 5 is fixedly connected to the inner wall of the base 1 , and the other end of the spring 5 is fixedly connected to a fixing ring 6 , and the fixing ring 6 is slidably connected to the limiting column 4 .
[0024] The limiting column 4 passes through the slider 7 , and the positions of the slider 7 and the fixing ring 6 correspond.
[0025] The slider 7 is located between the two limiting columns 4, and a thread groove is provided inside the slider 7, and the opening 8 is connected to the thread groove. The slider 7 is constrained by the limiting columns 4 during movement, thereby enhancing the stability of its movement. When the slider 7 approaches the inner wall of the base 1, it will contact the fixing ring 6, and the spring 5 will be compressed by the fixing ring 6, thereby preventing the slider 7 from directly colliding with the inner wall of the base 1 and being damaged, which is conducive to enhancing the practicality of the device.
[0026] Working principle: When in use, the motor 2 drives the screw 3 to rotate, thereby driving the slider 7 to move on the outer surface of the screw 3, and the rack 16 cooperates with the tooth groove 12 on the outer surface of the rotating ring 11 to push the rotating ring 11 to rotate, so that the oil outlet 15 constantly overlaps with the internal through hole 18 of the limit ring 17 during the rotation process, so that the lubricating oil inside the oil tank 13 enters the slider 7 through the connecting pipe 9, thereby smearing the screw 3, which is conducive to improving the convenience of lubrication of the screw 3, and there is no need to turn off the motor 2 to avoid affecting the operation of the device. The slider 7 moves on the outer surface of the screw 3, so that it is convenient to apply lubricating oil to the entire outer surface of the screw 3.
[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electric push rod screw structure, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a screw rod (3), the top of the screw rod (3) is provided with an opening (8), the interior of the opening (8) is fixedly connected to a connecting pipe (9), the inner side wall of the end of the connecting pipe (9) away from the opening (8) is fixedly connected to a limiting ring (17), the interior of the limiting ring (17) is provided with a through hole (18), the top of the connecting pipe (9) is provided with a limiting groove (10), the limiting groove (11) is provided with a through hole (18), and the limiting groove (11) is provided with a through hole (18). A rotating ring (11) is rotatably connected inside the position slot (10), and a tooth groove (12) is provided on the outer surface of the rotating ring (11). A rack rack (16) is fixedly connected to the rear end surface of the base (1), and the front end of the rack rack (16) is meshed with the outer surface of the tooth groove (12). An oil storage tank (13) is fixedly connected to the top of the rotating ring (11), and an oil outlet hole (15) is provided on the top of the rotating ring (11), and the oil outlet hole (15) corresponds to the position of the through hole (18).
2. The electric push rod screw structure according to claim 1, characterized in that: The oil storage tank (13) is internally threadedly connected to a top cover (14), and the outer surface of the top cover (14) is provided with anti-slip patterns.
3. The electric push rod screw structure according to claim 1, characterized in that: The inner side wall of the base (1) is fixedly connected to a limiting column (4), and the limiting columns (4) are provided in two numbers and are symmetrically distributed front to back.
4. The electric push rod screw structure according to claim 3, characterized in that: The outer surface of the limiting column (4) is sleeved with a spring (5), one end of the spring (5) is fixedly connected to the inner wall of the base (1), the other end of the spring (5) is fixedly connected to a fixing ring (6), and the fixing ring (6) is slidably connected to the limiting column (4).
5. The electric push rod screw structure according to claim 4, characterized in that: The limiting column (4) passes through the slider (7), and the positions of the slider (7) and the fixing ring (6) correspond.
6. The electric push rod screw structure according to claim 5, characterized in that: The slider (7) is located between the two limiting columns (4), and a thread groove is provided inside the slider (7), and the opening (8) is connected to the thread groove.