Linear motion mechanism capable of effectively braking

Abstract

The utility model relates to the technical field of linear motion mechanisms, and discloses a linear motion mechanism capable of braking effectively, which comprises a base, two ends of the base are respectively and fixedly connected with a first baffle and a second baffle, the side wall of the first baffle is fixedly connected with a motor, and the inner wall of the first baffle is fixedly connected with a coupler. An output shaft of the motor is fixedly connected with the coupler, a ball screw is arranged in the coupler, and the output shaft of the motor is fixedly connected with the end of the ball screw. The inner wall of the safety nut provided by the utility model is attached to the rod wall of the ball screw, so that the transmission effect on the ball nut cannot be influenced; the safety nut is arranged on the rod wall of the ball screw in an attached and pressed mode so that the ball nut can be emergently braked and stop moving, and the situation that the ball nut breaks down during moving and continuously shifts and moves to accelerate abrasion is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of linear motion mechanisms, in particular to a linear motion mechanism capable of effective braking. Background Art

[0002] Linear motion refers to the form of motion in which an object moves in a straight line. In linear motion, the object moves along a straight path, and its speed and acceleration are both along the direction of this straight line. Linear motion can be divided into two types: uniform linear motion and variable speed linear motion.

[0003] In the prior art, during the use of the linear motion mechanism, wear will occur inside the mechanism after long-term use. The wear will cause the motion trajectory of the motion mechanism to shift, and it is easy to fail during subsequent use. When a failure occurs and the motion trajectory shifts, the linear motion mechanism cannot brake in time, which will affect the motion effect. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that wear will occur inside the mechanism after long-term use, and the wear will cause the motion trajectory of the motion mechanism to shift. At the same time, it is easy to malfunction during subsequent use. When a malfunction occurs and the motion trajectory shifts, the linear motion mechanism cannot be braked in time, which affects the motion effect. A linear motion mechanism with effective braking is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A linear motion mechanism with effective braking comprises a base, wherein two ends of the base are fixedly connected with a first baffle and a second baffle respectively, a side wall of the first baffle is fixedly connected with a motor, an inner wall of the first baffle is fixedly connected with a coupling, an output shaft of the motor is fixedly connected with the coupling, a ball screw is provided inside the coupling, the output shaft of the motor is fixedly connected with an end of the ball screw, a ball nut is threadedly connected with a rod wall of the ball screw, a connecting seat is fixedly connected with the top end of the ball nut, a safety nut is fixedly connected with the side wall of the ball nut, the safety nut is threadedly connected with the rod wall of the ball screw, and the inner wall of the safety nut is configured to match the ball screw and is fitted on the rod wall of the ball screw.

[0007] Preferably, a connecting plate is fixedly connected to the inner wall of the second baffle, a bearing is fixedly connected inside the connecting plate, and one end of the ball screw facing away from the coupling is arranged inside the bearing.

[0008] Preferably, the inner wall of the base is fixedly connected with a guide rail, the bottom of the connecting seat is fixedly connected with a guide block, and the guide block is slidably arranged on the rail wall of the guide rail.

[0009] Preferably, protective cover plates are fixedly connected to the top side walls of the corresponding sides of the first baffle plate and the second baffle plate. A gap is provided between the base and the protective cover plate. The top end of the connecting seat penetrates through the gap between the base and the protective cover plate and extends above the protective cover plate.

[0010] Preferably, anti-deviation strips are fixedly connected to the side wall of the connecting seat, and a plurality of guide seats are fixedly connected to the side wall of the base. The anti-deviation strips are slidably arranged on the inner wall of the guide seats.

[0011] Preferably, a buffer seat is fixedly connected to the side wall of the connecting plate, and the buffer seat is arranged in alignment with the connecting seat.

[0012] Compared with the prior art, the present utility model provides a linear motion mechanism capable of effective braking, having the following beneficial effects:

[0013] 1. For the linear motion mechanism capable of effective braking, the inner wall of the safety nut is fitted on the rod wall of the ball screw, which does not affect the transmission effect on the ball nut. When the ball nut is worn after long-term use and the movement deviates, the safety nut is fitted and pressed on the rod wall of the ball screw to make the ball nut stop moving emergently, preventing the ball nut from malfunctioning during movement and continuously deviating to accelerate wear.

[0014] 2. For the linear motion mechanism capable of effective braking, the output shaft of the motor rotates to drive the coupling to drive the ball screw to rotate. The ball screw rotates stably along the inside of the connecting plate through the bearing. The balls inside the ball nut roll along the thread groove of the ball screw, enabling the ball nut to move stably on the rod wall of the ball screw to drive the connecting seat to move, driving the connected transmission parts to perform stable linear movement. The guide block moves along the rail wall of the guide rail, improving the stability of the movement of the connecting seat and preventing the connecting seat from deviating during movement.

[0015] 3. For the linear motion mechanism capable of effective braking, the protective cover plate can protect the ball screw inside the base. The anti-deviation strips can pass through the inner wall of the guide seat when the connecting seat moves, and it can be directly observed whether the connecting seat deviates during movement. The buffer seat can buffer the connecting seat, preventing the end of the connecting seat from being damaged by impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a linear motion mechanism capable of effective braking proposed by the present utility model;

[0017] Figure 2 is an exploded schematic structural diagram of a linear motion mechanism capable of effective braking proposed by the present utility model;

[0018] Figure 3 This is a structural exploded top view of a linear motion mechanism capable of effective braking proposed by the utility model.

[0019] In the figure: 1 base, 2 first baffle, 3 motor, 4 coupling, 5 second baffle, 6 ball screw, 7 connecting plate, 8 bearing, 9 ball nut, 10 connecting seat, 11 safety nut, 12 guide block, 13 guide rail, 14 protective cover, 15 anti-deflection strip, 16 guide seat, 17 buffer seat. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figures 1-3 A linear motion mechanism with effective braking comprises a base 1, wherein two ends of the base 1 are fixedly connected with a first baffle 2 and a second baffle 5 respectively, a motor 3 is fixedly connected to the side wall of the first baffle 2, a coupling 4 is fixedly connected to the inner wall of the first baffle 2, an output shaft of the motor 3 is fixedly connected to the coupling 4, a ball screw 6 is arranged inside the coupling 4, the output shaft of the motor 3 is fixedly connected to the end of the ball screw 6, a ball nut 9 is threadedly connected to the rod wall of the ball screw 6, a connecting seat 10 is fixedly connected to the top of the ball nut 9, a safety nut 11 is fixedly connected to the side wall of the ball nut 9, the safety nut 11 is threadedly connected to the rod wall of the ball screw 6, and the inner wall of the safety nut 11 is arranged to match the ball screw 6 and is fitted on the rod wall of the ball screw 6.

[0022] The inner wall of the second baffle 5 is fixedly connected with a connecting plate 7, the interior of the connecting plate 7 is fixedly connected with a bearing 8, the end of the ball screw 6 facing away from the coupling 4 is arranged inside the bearing 8, the inner wall of the base 1 is fixedly connected with a guide rail 13, the bottom of the connecting seat 10 is fixedly connected with a guide block 12, and the guide block 12 is slidably arranged on the rail wall of the guide rail 13.

[0023] During use, the rotation of the output shaft of the motor 3 can drive the coupling 4 to drive the ball screw 6 to rotate. The ball screw 6 rotates stably along the inside of the connecting plate 7 through the bearing 8. The balls inside the ball nut 9 roll along the thread groove of the ball screw 6, enabling the ball nut 9 to move stably on the rod wall of the ball screw 6 and drive the connecting seat 10 to move, which can drive the connected transmission parts to perform stable linear movement. The inner wall of the safety nut 11 is fitted on the rod wall of the ball screw 6 and does not affect the transmission effect on the ball nut 9. When the ball nut 9 is worn after long-term use and the movement deviates, the safety nut 11 fitted and pressed on the rod wall of the ball screw 6 can cause the ball nut 9 to stop moving emergently, preventing the ball nut 9 from malfunctioning and continuously deviating during movement, which will accelerate the wear. The guide block 12 moves along the wall of the guide rail 13, which can improve the stability of the movement of the connecting seat 10 and prevent the connecting seat 10 from deviating during movement.

[0024] In order to visually observe whether the connecting seat 10 deviates during movement, as Figures 1-3 shown, at the top side walls of the corresponding sides of the first baffle 2 and the second baffle 5, a protective cover plate 14 is fixedly connected at the same time. There is a gap between the base 1 and the protective cover plate 14. The top end of the connecting seat 10 passes through the gap between the base 1 and the protective cover plate 14 and extends above the protective cover plate 14. An anti-deviation strip 15 is fixedly connected to the side wall of the connecting seat 10. A plurality of guide seats 16 are fixedly connected to the side wall of the base 1. The anti-deviation strip 15 is slidably arranged inside the guide seats 16. A buffer seat 17 is fixedly connected to the side wall of the connecting plate 7. The buffer seat 17 is arranged in alignment with the connecting seat 10.

[0025] The protective cover plate 14 can protect the ball screw 6 inside the base 1. The anti-deviation strip 15 can pass through the inner wall of the guide seats 16 when the connecting seat 10 moves, enabling visual observation of whether the connecting seat 10 deviates during movement. The buffer seat 17 can buffer the connecting seat 10 and prevent the end of the connecting seat 10 from being damaged by impact.

[0026] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A linear motion mechanism capable of effective braking, comprising a base (1), characterized in that: Both ends of the base (1) are fixedly connected with a first baffle plate (2) and a second baffle plate (5) respectively. A motor (3) is fixedly connected to the side wall of the first baffle plate (2). A coupling (4) is fixedly connected to the inner wall of the first baffle plate (2). The output shaft of the motor (3) is fixedly connected to the coupling (4). A ball screw (6) is arranged inside the coupling (4). The output shaft of the motor (3) is fixedly connected to the end of the ball screw (6). A ball nut (9) is threadedly connected to the rod wall of the ball screw (6). The top end of the ball nut (9) is fixedly connected with a connecting seat (10). A safety nut (11) is fixedly connected to the side wall of the ball nut (9). The safety nut (11) is threadedly connected to the rod wall of the ball screw (6). The inner wall of the safety nut (11) is set to match the ball screw (6) and is fitted on the rod wall of the ball screw (6).

2. The linear motion mechanism capable of effective braking according to claim 1, wherein: A connecting plate (7) is fixedly connected to the inner wall of the second baffle plate (5). A bearing (8) is fixedly connected inside the connecting plate (7). The end of the ball screw (6) away from the coupling (4) is arranged inside the bearing (8).

3. The linear motion mechanism capable of effective braking according to claim 1, wherein: A guide rail (13) is fixedly connected to the inner wall of the base (1). A guide block (12) is fixedly connected to the bottom of the connecting seat (10). The guide block (12) is slidably arranged on the rail wall of the guide rail (13).

4. The linear motion mechanism capable of effective braking according to claim 1, wherein: A protective cover plate (14) is fixedly connected to the top side walls of the corresponding sides of the first baffle plate (2) and the second baffle plate (5). There is a gap between the base (1) and the protective cover plate (14). The top end of the connecting seat (10) penetrates through the gap between the base (1) and the protective cover plate (14) and extends above the protective cover plate (14).

5. The linear motion mechanism capable of effective braking according to claim 1, wherein: A deviation prevention strip (15) is fixedly connected to the side wall of the connecting seat (10). A plurality of guide seats (16) are fixedly connected to the side wall of the base (1). The deviation prevention strip (15) is slidably arranged inside the guide seats (16).

6. The linear motion mechanism capable of effective braking according to claim 1, characterized in that: A buffer seat (17) is fixedly connected to the side wall of the connecting plate (7). The buffer seat (17) is arranged in alignment with the connecting seat (10).

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