Novel electric actuator

Abstract

The utility model discloses a novel electric actuator, relates to the technical field of electric actuators, and aims to solve the problems that lubricating oil drips due to the fact that the lubricating oil is excessively smeared and time and labor are wasted during manual smearing in the prior art, the novel electric actuator comprises a bottom shell, and the top of the bottom shell is connected with a cover plate. A servo motor is installed at one end of the bottom shell, and the inner walls of the two ends of the bottom shell are rotationally connected with lead screws. Oil liquid is added into a fixed pipe, enters a movable shell, is absorbed and stored by a first cotton ring and a second cotton ring, is driven by a servo motor to rotate and moves a moving mechanism, and in the process, the rotating screw rod drives the movable shell in threaded connection to move, so that the moving mechanism is driven to move. Lubricating oil can make contact with the lead screw through the first through hole, then the lead screw is oiled and lubricated, the guide shell slides along the sliding rod, the lubricating oil makes contact with the sliding rod through the second through hole, and then the sliding rod is oiled and lubricated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric actuators, in particular to a novel electric actuator. Background Art

[0002] An electric actuator, also known as an electric actuator, is a driving device that can provide rotational or linear motion. It uses power as the driving energy and operates under the action of a certain control signal.

[0003] In the prior art, electric actuators usually use a motor to drive the threaded screw to rotate circumferentially and drive the slider to slide horizontally along the axis of the outer wall of the threaded screw. In order to reduce the friction between the slider and the threaded screw, lubricating oil needs to be frequently applied to the outer wall of the threaded screw.

[0004] However, applying too much lubricant will cause it to drip; moreover, manual application is time-consuming and laborious. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a novel electric actuator, which overcomes the deficiencies of the prior art and effectively solves the problems in the prior art that excessive application of lubricating oil may cause lubricating oil dripping, and manual application is also time-consuming and labor-intensive.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A novel electric actuator comprises a bottom shell, a cover plate is connected to the top of the bottom shell, a servo motor is installed at one end of the bottom shell, screw rods are rotatably connected to the inner walls at both ends of the bottom shell, and sliding rods fixed to the inner walls at both ends of the bottom shell are arranged on both sides of the screw rod, and the screw rods and the sliding rods are connected to a moving mechanism, and the moving mechanism comprises a moving shell, a first cotton ring arranged in the moving shell, a connecting shell plugged and fixed to both sides of the moving shell, a guide shell plugged and fixed to one end of the connecting shell away from the moving shell, a second cotton ring arranged in the guide shell, a connecting block fixed to the top of the outer walls on both sides of the moving shell, a sliding block fixed to the top of the moving shell, and a fixed tube plugged and fixed to the top of the sliding block.

[0008] Open the pipe cover and add oil into the fixed pipe. The oil enters the movable shell, and is absorbed and stored by the first cotton ring and the second cotton ring. The servo motor drives the screw rod to rotate to move the movable mechanism. In this process, the rotating screw rod drives the threaded movable shell to move. The lubricating oil can contact the screw rod through the first through hole, and then lubricate the screw rod. The guide shell slides along the sliding rod, and the lubricating oil contacts the sliding rod through the second through hole, and then lubricates the sliding rod.

[0009] Preferably, a first sliding groove is provided on the top of the cover plate, and both ends of the cover plate and both ends of the bottom shell are tightly fitted through fixedly connected mounting blocks.

[0010] The cover plate and the bottom shell are connected and fixed by means of a mounting block and bolts. The first sliding groove is provided to facilitate the movement of the moving mechanism and also to facilitate the addition of lubricating oil into the moving mechanism.

[0011] Preferably, the output shaft of the servo motor is connected and fixed to one end of the screw rod, and second sliding grooves are provided on both sides of the top of the bottom shell.

[0012] The servo motor drives the lead screw to rotate and move the moving mechanism, and the second slide groove facilitates the movement of the moving mechanism.

[0013] Preferably, the movable shell is threadedly connected to the screw rod, and the outer wall of the inner circle of the movable shell is provided with first through holes distributed at equal distances.

[0014] The rotating screw rod drives the threaded movable shell to move, and the lubricating oil can contact the screw rod through the first through hole, thereby lubricating the screw rod.

[0015] Preferably, the guide shell and the slide rod form a sliding fit, and the outer wall of the inner ring of the guide shell is provided with second through holes distributed at equal distances.

[0016] The guide shell slides along the slide bar, and the lubricating oil contacts the slide bar through the second through hole, thereby lubricating the slide bar.

[0017] Preferably, the slider forms a sliding fit with the first slide groove, and the bottom end of the fixed tube passes through the bottom of the slider and extends to the top of the movable shell, and the top of the fixed tube is connected with a tube cover.

[0018] By adding oil into the fixed pipe, the oil enters the movable shell, and the first sponge ring and the second sponge ring absorb and store the oil, so that oil lubrication can be performed continuously.

[0019] The beneficial effects of the utility model are:

[0020] By adding oil into the fixed tube, the oil enters the movable shell, and the first cotton ring and the second cotton ring absorb and store the oil, and the servo motor drives the lead screw to rotate, so as to move the movable mechanism. In this process, the rotating lead screw drives the threaded movable shell to move, and the lubricating oil can contact the lead screw through the first through hole, so as to lubricate the lead screw, and the guide shell slides along the sliding rod, and the lubricating oil contacts the sliding rod through the second through hole, so as to lubricate the sliding rod, which effectively solves the problem in the prior art that excessive application of lubricating oil will cause the lubricating oil to drip, and manual application is also time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the internal structure of a bottom shell of a novel electric actuator proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of a new type of electric actuator proposed by the utility model;

[0023] Figure 3 The utility model is a schematic cross-sectional view of the moving mechanism structure of a novel electric actuator.

[0024] In the figure: 1. bottom shell; 2. cover plate; 3. first slide groove; 4. servo motor; 5. mounting block; 6. second slide groove; 7. screw rod; 8. slide rod; 9. moving mechanism; 10. moving shell; 11. first cotton ring; 12. connecting shell; 13. guide shell; 14. second cotton ring; 15. connecting block; 16. slider; 17. fixed tube; 18. tube cover. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example:

[0027] Reference Figure 1-3 A novel electric actuator comprises a bottom shell 1, a cover plate 2 is connected to the top of the bottom shell 1, a servo motor 4 is installed at one end of the bottom shell 1, screw rods 7 are rotatably connected to the inner walls of both ends of the bottom shell 1, both sides of the screw rod 7 are provided with slide rods 8 fixed to the inner walls of both ends of the bottom shell 1, and both the screw rod 7 and the slide rod 8 are connected to a moving mechanism 9, and the moving mechanism 9 comprises a moving shell 10, a first cotton ring 11 arranged in the moving shell 10, a connecting shell 12 plugged and fixed to both sides of the moving shell 10, a guide shell 13 plugged and fixed to one end of the connecting shell 12 away from the moving shell 10, a second cotton ring 14 arranged in the guide shell 13, a connecting block 15 fixed to the top of the outer wall of both sides of the moving shell 10, a slide block 16 fixed to the top of the moving shell 10, and a fixed tube 17 plugged and fixed to the top of the slide block 16;

[0028] A first slide groove 3 is provided on the top of the cover plate 2, and both ends of the cover plate 2 and the two ends of the bottom shell 1 are fastened together through the mounting blocks 5 that are fixedly connected. The cover plate 2 and the bottom shell 1 are connected and fixed by the mounting blocks 5 and bolts. The first slide groove 3 is convenient for the movement of the moving mechanism 9 and for adding lubricating oil to the moving mechanism 9. The output shaft of the servo motor 4 is fixedly connected to one end of the screw rod 7. Second slide grooves 6 are provided on both sides of the top of the bottom shell 1. The servo motor 4 drives the screw rod 7 to rotate to move the moving mechanism 9. The second slide groove 6 facilitates the movement of the moving mechanism 9.

[0029] The movable shell 10 is screwed with the screw rod 7, and the inner ring outer wall of the movable shell 10 is provided with first through holes distributed at equal distances. The rotating screw rod 7 drives the screwed movable shell 10 to move, and the lubricating oil can contact the screw rod 7 through the first through hole, thereby lubricating the screw rod 7, and the guide shell 13 and the slide rod 8 form a sliding fit, and the inner ring outer wall of the guide shell 13 is provided with second through holes distributed at equal distances. The guide shell 13 slides along the slide rod 8, and the lubricating oil contacts the slide rod 8 through the second through hole, thereby lubricating the slide rod 8, and the slider 16 forms a sliding fit with the first slide groove 3, and the bottom end of the fixed tube 17 passes through the bottom of the slider 16 and extends to the top of the movable shell 10, and the top of the fixed tube 17 is connected to the pipe cover 18, by adding oil into the fixed tube 17, the oil enters the movable shell 10, and the first cotton ring 11 and the second cotton ring 14 absorb and store the oil, so that continuous oiling and lubrication can be performed.

[0030] Working principle:

[0031] During operation, the pipe cover 18 is opened, and oil is added to the fixed pipe 17. The oil enters the movable shell 10, and is absorbed and stored by the first cotton ring 11 and the second cotton ring 14. The servo motor 4 drives the screw rod 7 to rotate, and the movable mechanism 9 is moved. In this process, the rotating screw rod 7 drives the threaded movable shell 10 to move, and the lubricating oil can contact the screw rod 7 through the first through hole, and then the screw rod 7 is lubricated. The guide shell 13 slides along the slide rod 8, and the lubricating oil contacts the slide rod 8 through the second through hole, and then the slide rod 8 is lubricated.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel electric actuator, comprising a bottom shell (1), characterized in that: The top of the bottom shell (1) is connected to a cover plate (2), and a servo motor (4) is installed at one end of the bottom shell (1). The inner walls at both ends of the bottom shell (1) are rotatably connected to screw rods (7), and both sides of the screw rod (7) are provided with sliding rods (8) fixed to the inner walls at both ends of the bottom shell (1). The screw rod (7) and the sliding rod (8) are both connected to a moving mechanism (9). The moving mechanism (9) comprises a moving shell (10), a first cotton ring (11) arranged in the moving shell (10), a connecting shell (12) plugged and fixed to both sides of the moving shell (10), a guide shell (13) plugged and fixed to one end of the connecting shell (12) away from the moving shell (10), a second cotton ring (14) arranged in the guide shell (13), a connecting block (15) fixed to the top of the outer walls at both sides of the moving shell (10), a sliding block (16) fixed to the top of the moving shell (10), and a fixed pipe (17) plugged and fixed to the top of the sliding block (16).

2. A novel electric actuator according to claim 1, characterized in that: A first sliding groove (3) is provided on the top of the cover plate (2), and both ends of the cover plate (2) and both ends of the bottom shell (1) are tightly matched via fixedly connected mounting blocks (5).

3. A novel electric actuator according to claim 1, characterized in that: The output shaft of the servo motor (4) is connected and fixed to one end of the screw rod (7), and second sliding grooves (6) are provided on both sides of the top of the bottom shell (1).

4. A novel electric actuator according to claim 1, characterized in that: The movable shell (10) is threadedly connected to the screw rod (7), and the outer wall of the inner circle of the movable shell (10) is provided with first through holes distributed at equal distances.

5. A novel electric actuator according to claim 1, characterized in that: The guide shell (13) and the slide rod (8) form a sliding fit, and the outer wall of the inner ring of the guide shell (13) is provided with second through holes distributed at equal distances.

6. A novel electric actuator according to claim 2, characterized in that: The slider (16) forms a sliding fit with the first slide groove (3), and the bottom end of the fixed tube (17) passes through the bottom of the slider (16) and extends to the top of the movable shell (10), and the top of the fixed tube (17) is connected to a tube cover (18).

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