Propelling structure of multi-stage servo electric cylinder
By introducing a stabilizing slide bar and friction block structure into the multi-stage servo electric cylinder, combined with bevel gear transmission, the problem of lateral displacement under heavy load conditions is solved, achieving higher motion trajectory accuracy and support capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-06
AI Technical Summary
Existing multi-stage servo electric cylinders are prone to lateral displacement of the propulsion structure under heavy load conditions, resulting in reduced accuracy of the motion trajectory.
The structure employs a combination of stabilizing slide bar and friction block. Through the sliding of the slide bar and sleeve and the transmission of bevel gears, the support capacity of the propulsion end is enhanced, lateral displacement is limited, and vibration and swaying are reduced.
This improves the accuracy of the motion trajectory and the support capacity of the multi-stage servo electric cylinder under heavy load conditions.
Smart Images

Figure CN223978533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric cylinders, and in particular to a propulsion structure for a multi-stage servo electric cylinder. Background Technology
[0002] A multi-stage servo electric cylinder is a device that achieves long-stroke, high-precision linear motion through multi-stage cylinder nesting and synchronous transmission mechanism. Its core features are compact structure, flexible stroke and precise control.
[0003] When existing multi-stage servo electric cylinders provide long-stroke support, their propulsion structure is relatively simple. Therefore, under heavy load conditions, the propulsion structure is prone to lateral displacement, which reduces the accuracy of the motion trajectory.
[0004] Therefore, it is necessary to provide a new propulsion structure for a multi-stage servo electric cylinder to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a propulsion structure for a multi-stage servo electric cylinder, which solves the problem that the existing servo electric cylinder propulsion structure is relatively simple, and therefore the propulsion structure is prone to lateral displacement under heavy load conditions, thereby reducing the accuracy of the motion trajectory.
[0006] The propulsion structure of the multi-stage servo electric cylinder provided by this utility model includes a mounting base, a cylinder body mounted on the mounting base, a propulsion end mounted on the cylinder body, side seats fixed on both sides of the cylinder body, and a stabilizing slide rod passing through the side seats;
[0007] Two connecting seats are symmetrically fixed on the propulsion end, and the top of the stabilizing slide rod is fixedly connected to the connecting seats;
[0008] Both side seats have an inner groove inside. A sleeve is fixed to one side of each side seat. A sliding column is slidably arranged inside the sleeve. One end of the sliding column extends into the inner groove and is fixed with a friction block.
[0009] In a preferred embodiment, the side of the stabilizing slide bar facing the friction block is roughened.
[0010] In a preferred embodiment, a movable seat is fixed to one end of the two sliding pins away from the friction block, and a tightening screw is rotatably provided on one side of the cylinder body. The tightening screw passes through the movable seat and is threadedly connected to the movable seat.
[0011] In a preferred embodiment, the tightening screw is galvanized.
[0012] In a preferred embodiment, a first bevel gear is mounted on the tightening screw, a motor is provided on one side of the cylinder, and a second bevel gear is mounted on the output end of the motor, wherein the first bevel gear meshes with the second bevel gear.
[0013] In a preferred embodiment, a support frame is mounted on one side of the cylinder, and the motor is mounted on the support frame.
[0014] The beneficial effects of this utility model are:
[0015] 1. When the servo electric cylinder moves its propulsion end, it will drive two stabilizing slide rods to slide along with it. When the propulsion end plays a supporting role, the two stabilizing slide rods can stabilize the propulsion end, limit the lateral displacement of the electric cylinder under heavy load conditions, reduce vibration and shaking, and thus improve the accuracy of the motion trajectory.
[0016] 2. Simultaneously, when the electric cylinder supports the heavy object, the operator can start the motor. Under the transmission action of the two bevel gears, the tightening screw will be moved. Under the action of the tightening screw, the slide column will slide along the sleeve until the friction block on the slide column contacts the stabilizing slide rod, further improving the supporting capacity of the electric cylinder. Attached Figure Description
[0017] Figure 1 A three-dimensional view of the main structure of the propulsion structure of the multi-stage servo electric cylinder provided by this utility model;
[0018] Figure 2 Main structural plan view of the propulsion structure of the multi-stage servo electric cylinder provided by this utility model;
[0019] Figure 3 A schematic diagram of the side seat provided by this utility model.
[0020] The following are the labels in the diagram: 1. Mounting seat; 2. Cylinder body; 3. Propulsion end; 4. Side seat; 5. Stabilizing slide bar; 6. Connecting seat; 7. Inner groove; 8. Sleeve; 9. Slide column; 10. Friction block; 11. Moving seat; 12. Tightening screw; 13. First bevel gear; 14. Motor; 15. Second bevel gear; 16. Support frame. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please refer to the following: Figure 1 , Figure 2 as well as Figure 3 ,in Figure 1 A three-dimensional view of the main structure of the propulsion structure of the multi-stage servo electric cylinder provided by this utility model; Figure 2Main structural plan view of the propulsion structure of the multi-stage servo electric cylinder provided by this utility model; Figure 3 A schematic diagram of the side seat provided by this utility model.
[0023] In the specific implementation process, such as Figures 1-3 As shown, the multi-stage servo electric cylinder includes a mounting base 1, a cylinder body 2 mounted on the mounting base 1, a push end 3 mounted on the cylinder body 2, side seats 4 fixed on both sides of the cylinder body 2, and a stabilizing slide rod 5 running through the side seats 4. Two connecting seats 6 are symmetrically fixed on the push end 3, and the top of the stabilizing slide rod 5 is fixedly connected to the connecting seat 6. When this multi-stage servo electric cylinder is in use, the movement of the push end 3 will drive the two stabilizing slide rods 5 to slide along with it. When the push end 3 plays a supporting role, the two stabilizing slide rods 5 can stabilize the push end 3, limit the lateral displacement of the electric cylinder under heavy load conditions, reduce vibration and shaking, and thus improve the accuracy of the motion trajectory.
[0024] Both side seats 4 have an inner groove 7 inside. A sleeve 8 is fixed on one side of the side seat 4. A sliding column 9 is slidably arranged inside the sleeve 8. One end of the sliding column 9 extends into the inner groove 7 and is fixed with a friction block 10. The side of the stabilizing slide rod 5 facing the friction block 10 is roughened to increase the friction between the friction block 10 and the stabilizing slide rod 5.
[0025] Two sliding columns 9 are fixed to a movable seat 11 at the end away from the friction block 10. A tightening screw 12 is rotatably installed on one side of the cylinder body 2. The tightening screw 12 passes through the movable seat 11 and is threadedly connected to the movable seat 11. The tightening screw 12 is galvanized to improve its service life. A first bevel gear 13 is installed on the tightening screw 12. A motor 14 is installed on one side of the cylinder body 2. A second bevel gear 15 is installed at the output end of the motor 14. The first bevel gear 13 and the second bevel gear 15 mesh. A support frame 16 is installed on one side of the cylinder body 2. The motor 14 is installed on the support frame 16. When the electric cylinder supports a heavy object, the operator can start the motor 14. Under the transmission action of the two bevel gears, the tightening screw 12 will be driven to move. Under the action of the tightening screw 12, the sliding column 9 will slide along the sleeve 8 until the friction block 10 on the sliding column 9 contacts the stabilizing sliding rod 5, further improving the supporting capacity of the electric cylinder.
[0026] The working principle of this utility model is as follows: When this multi-stage servo electric cylinder is used, the moving end 3 will drive the two stabilizing slide rods 5 to slide along with it. When the moving end 3 plays a supporting role, the two stabilizing slide rods 5 can stabilize the moving end 3, limit the lateral displacement of the electric cylinder under heavy load conditions, reduce vibration and shaking, and thus improve the accuracy of the motion trajectory.
[0027] Meanwhile, when the electric cylinder supports the heavy object, the operator can start the motor 14. Under the transmission of the two bevel gears, the tightening screw 12 will be moved. Under the action of the tightening screw 12, the slide 9 will slide along the sleeve 8 until the friction block 10 on the slide 9 contacts the stabilizing slide rod 5, further improving the supporting capacity of the electric cylinder.
[0028] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-stage servo motor cylinder push structure, comprising a mounting base (1), a cylinder body (2) is mounted on the mounting base (1), and a push end (3) is mounted on the cylinder body (2), characterized in that, Both sides of the cylinder (2) are fixed with side seats (4), the stable slide rods (5) are arranged through the side seats (4); The advancing end (3) is fixed with two connecting seats (6) symmetrically, and the top of the stable slide rod (5) is fixedly connected with the connecting seat (6); The inside of the two side seats (4) is provided with an inner groove (7), and the side seat (4) is fixed with a sleeve (8) on one side, the sleeve (8) is slidably provided with a slide column (9) inside, and the slide column (9) extends into the inner groove (7) and is fixed with a friction block (10) on one end.
2. The thrust structure of a multi-stage servo motor cylinder according to claim 1, characterized by, The surface of the stable slide rod (5) facing the friction block (10) is roughened.
3. The thrust structure of a multi-stage servo motor cylinder according to claim 2, characterized by, The end of the two slide columns (9) away from the friction block (10) is fixed with a moving seat (11), and the cylinder (2) is rotatably provided with a tightening screw rod (12) on one side, the tightening screw rod (12) penetrates the moving seat (11), and the tightening screw rod (12) is threadedly connected with the moving seat (11).
4. The thrust structure of a multi-stage servo motor cylinder according to claim 3, characterized by, The tightening screw rod (12) is galvanized.
5. The push structure of a multi-stage servo motor cylinder according to claim 4, characterized in that, The tightening screw rod (12) is provided with a first bevel gear (13), the cylinder (2) is provided with a motor (14) on one side, the output end of the motor (14) is provided with a second bevel gear (15), and the first bevel gear (13) is engaged with the second bevel gear (15).
6. The thrust structure of a multi-stage servo motor cylinder according to claim 5, characterized by, The cylinder (2) is provided with a supporting frame (16) on one side, and the motor (14) is mounted on the supporting frame (16).