Motor device convenient for stroke adjustment

Abstract

The utility model discloses a motor device convenient for stroke adjustment, which comprises a main motor, the output end of the main motor is connected with one end of a lead screw, the periphery of the lead screw is provided with an outer cylinder, the inner wall of the outer cylinder is provided with a guide rail along the length direction, the lead screw is matched with a nut, and the outer wall of the nut is provided with a guide edge matched with the guide rail. The end, away from the main motor, of the nut is fixed to the movable output sleeve rod, the end of the lead screw is inserted into the movable output sleeve rod, a first limiting switch and a second limiting switch are arranged on the inner wall of the outer barrel in the length direction at intervals, and the nut is limited between the first limiting switch and the second limiting switch. The outer wall of the nut is provided with a trigger part matched with the first limiting switch and the second limiting switch, the first limiting switch and the second limiting switch are connected with a main motor controller, and the distance between the trigger positions of the first limiting switch and the second limiting switch is the output stroke of the motor.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a motor device that facilitates stroke adjustment. Background Technology

[0002] In existing technologies, motor stroke control is the core technology for achieving precise positioning. Motor stroke control typically employs position sensors and encoders to accurately measure and feedback the motor position, which is then adjusted by the controller. However, this stroke control method is prone to cumulative errors when the motor load changes, and requires recalibration after a power outage, affecting equipment reliability. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned shortcomings and defects of the prior art by providing a motor device that facilitates stroke adjustment, thereby solving the above-mentioned problems.

[0004] The technical problem solved by this utility model can be achieved by the following technical solution:

[0005] A motor device for convenient stroke adjustment includes a main motor, the output end of which is connected to one end of a lead screw. An outer cylinder is provided around the lead screw, and a guide rail is provided along the length of the inner wall of the outer cylinder. The lead screw engages with a nut, and the outer wall of the nut has a guide edge that engages with the guide rail. The end of the nut away from the main motor is fixed to a movable output sleeve. The end of the lead screw is inserted into the movable output sleeve. A first limit switch and a second limit switch are spaced apart along the length of the inner wall of the outer cylinder. The nut is restricted between the first and second limit switches, and the outer wall of the nut has a trigger part that engages with the first and second limit switches. The first and second limit switches are connected to a main motor controller, and the distance between the trigger positions of the first and second limit switches is the motor output stroke.

[0006] In a preferred embodiment of this utility model, the first limit switch and the second limit switch are fixed together on the adjusting edge of the inner wall of the outer cylinder, and the adjusting edge is connected to the adjusting screw at the end of the outer cylinder.

[0007] In a preferred embodiment of this utility model, the first limit switch is close to the main motor, and the second limit switch is far from the main motor. The first limit switch is fixed to the inner wall of the outer cylinder, and the second limit switch is fixed to the adjusting edge of the inner wall of the outer cylinder. The adjusting edge is connected to the adjusting screw at the end of the outer cylinder.

[0008] In a preferred embodiment of this utility model, a compression spring is sleeved on the adjusting screw.

[0009] In a preferred embodiment of this utility model, the output end of the main motor is connected to one end of the lead screw through a reduction mechanism.

[0010] In a preferred embodiment of this utility model, a pin hole is provided at the end of the movable output sleeve that is away from the main motor.

[0011] Because of the above technical solution, the distance between the trigger positions of the first and second limit switches in this invention is the motor output stroke, thus allowing adjustment of the motor stroke. This uses a mechanical limiting method, ensuring safety and reliability. Furthermore, changing the relative positions of the first and second limit switches not only alters the motor stroke but also changes the motor's output length. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is one of the three-dimensional structural diagrams of Embodiment 1 of this utility model.

[0014] Figure 2 This is the second three-dimensional structural diagram of Embodiment 1 of this utility model.

[0015] Figure 3 This is a partial cross-sectional view of Embodiment 1 of this utility model.

[0016] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0017] Figure 5 This is a schematic diagram of the lead screw nut structure of Embodiment 1 of this utility model.

[0018] Figure 6 This is a schematic diagram of the outer cylinder of Embodiment 1 of this utility model.

[0019] Figure 7 This is one of the three-dimensional structural diagrams of Embodiment 2 of this utility model.

[0020] Figure 8 This is the second perspective structural diagram of Embodiment 2 of this utility model.

[0021] Figure 9 This is a partial cross-sectional view of Embodiment 2 of this utility model.

[0022] Figure 10 yes Figure 9 A magnified view of a portion of the image.

[0023] Figure 11 This is a schematic diagram of the lead screw nut structure of Embodiment 2 of this utility model.

[0024] Figure 12 This is a schematic diagram of the outer cylinder of Embodiment 2 of this utility model. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0026] Example 1

[0027] See Figures 1 to 6 The motor device shown includes a main motor 100, the output end of which is connected to one end of a lead screw 200. In this embodiment, the output end of the main motor 100 is connected to one end of the lead screw 200 through a reduction mechanism 110, which can be a reduction gearbox.

[0028] The lead screw 200 has an outer cylinder 300 around its periphery. A guide rail 310 is provided along the length of the inner wall of the outer cylinder 300. The lead screw 200 mates with a nut 210. The outer wall of the nut 210 has a guide edge 211 that mates with the guide rail 310. The end of the nut 210 away from the main motor 100 is fixed to the movable output sleeve 400. The end of the lead screw 200 is inserted into the movable output sleeve 400. The end of the movable output sleeve 400 away from the main motor has a pin hole 410 for easy connection with a mating component.

[0029] The inner wall of the outer cylinder 300 is provided with a first limit switch 510 and a second limit switch 520 spaced apart along its length. The nut 210 is constrained between the first limit switch 510 and the second limit switch 520. The outer wall of the nut 210 is provided with a trigger part 212 that cooperates with the first limit switch 510 and the second limit switch 520. The first limit switch 510 and the second limit switch 520 are connected to the main motor controller. The distance between the trigger positions of the first limit switch 510 and the second limit switch 520 is the motor output stroke. When the trigger part 212 of the nut 210 triggers the button of either the first limit switch 510 or the second limit switch 520, the main motor stops working.

[0030] In this embodiment, the first limit switch 510 and the second limit switch 520 are jointly fixed on the adjusting edge 600 on the inner wall of the outer cylinder. The adjusting edge 600 is connected to the adjusting screw 700 at the end of the outer cylinder 300. By rotating the adjusting screw, the positions of the first limit switch 510 and the second limit switch 520 relative to the nut 210 can be changed. For example, if the distance between the trigger positions of the first limit switch 510 and the second limit switch 520 is 50cm, then the adjustable stroke of the motor is 0-50cm. By operating the adjusting screw 700 to move the first limit switch 510 and the second limit switch 520 2cm in the direction of the adjusting screw 700, then the adjustable stroke of the motor is 2-52cm. To ensure that the adjusting screw 700 remains stable and does not loosen, thus affecting the adjustment accuracy, a compression spring 710 is fitted onto the adjusting screw 700. Since the adjusting screw 700 is connected to the adjusting edge 600, and one end of the compression spring 710 abuts against the adjusting edge 600, the adjusting screw 700 is in a pulled state. When rotating the adjusting screw 700, a certain force is required to overcome the tension on the adjusting screw 700.

[0031] Example 2

[0032] See Figures 7 to 12 The motor device shown includes a main motor 100, the output end of which is connected to one end of a lead screw 200. In this embodiment, the output end of the main motor 100 is connected to one end of the lead screw 200 through a reduction mechanism 110, which can be a reduction gearbox.

[0033] The lead screw 200 has an outer cylinder 300 around its periphery. A guide rail 310 is provided along the length of the inner wall of the outer cylinder 300. The lead screw 200 mates with a nut 210. The outer wall of the nut 210 has a guide edge 211 that mates with the guide rail 310. The end of the nut 210 away from the main motor 100 is fixed to the movable output sleeve 400. The end of the lead screw 200 is inserted into the movable output sleeve 400. The end of the movable output sleeve 400 away from the main motor has a pin hole 410 for easy connection with a mating component.

[0034] The inner wall of the outer cylinder 300 is provided with a first limit switch 510 and a second limit switch 520 spaced apart along its length. The nut 210 is constrained between the first limit switch 510 and the second limit switch 520. The outer wall of the nut 210 is provided with a trigger part 212 that cooperates with the first limit switch 510 and the second limit switch 520. The first limit switch 510 and the second limit switch 520 are connected to the main motor controller. The distance between the trigger positions of the first limit switch 510 and the second limit switch 520 is the motor output stroke. When the trigger part 212 of the nut 210 triggers the button of either the first limit switch 510 or the second limit switch 520, the main motor stops working.

[0035] In this embodiment, the first limit switch 510 is close to the main motor 100, and the second limit switch 520 is away from the main motor 100. The first limit switch 510 is fixed to the inner wall of the outer cylinder 300 via the connecting edge 511, and the second limit switch 520 is fixed to the adjusting edge 600 on the inner wall of the outer cylinder 300. The adjusting edge 600 is connected to the adjusting screw 700 at the end of the outer cylinder 300. By rotating the adjusting screw, the position of the second limit switch 520 relative to the nut 210 can be changed. For example, if the distance between the trigger positions of the first limit switch 510 and the second limit switch 520 is 50cm, then the adjustable stroke of the motor is 0-50cm. By operating the adjusting screw 700 to move the second limit switch 520 2cm towards the adjusting screw 700, the adjustable stroke of the motor is 0-52cm. To ensure that the adjusting screw 700 remains stable and does not loosen, thus affecting the adjustment accuracy, a compression spring 710 is fitted onto the adjusting screw 700. Since the adjusting screw 700 is connected to the adjusting edge 600, and one end of the compression spring 710 abuts against the adjusting edge 600, the adjusting screw 700 is in a pulled state. When rotating the adjusting screw 700, a certain force is required to overcome the tension on the adjusting screw 700.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A motor device for convenient stroke adjustment, comprising a main motor, wherein the output end of the main motor is connected to one end of a lead screw, characterized in that, The lead screw has an outer cylinder around its periphery. A guide rail is provided along the length of the inner wall of the outer cylinder. The lead screw mates with a nut. The outer wall of the nut has a guide edge that mates with the guide rail. The end of the nut away from the main motor is fixed to a moving output sleeve. The end of the lead screw is inserted into the moving output sleeve. A first limit switch and a second limit switch are spaced apart along the length of the inner wall of the outer cylinder. The nut is restricted between the first and second limit switches. The outer wall of the nut has a trigger part that mates with the first and second limit switches. The first and second limit switches are connected to the main motor controller. The distance between the trigger positions of the first and second limit switches is the motor output stroke.

2. The motor device for convenient stroke adjustment according to claim 1, characterized in that, The first limit switch and the second limit switch are fixed together on the adjusting edge of the inner wall of the outer cylinder, and the adjusting edge is connected to the adjusting screw at the end of the outer cylinder.

3. The motor device for convenient stroke adjustment according to claim 1, characterized in that, The first limit switch is close to the main motor, and the second limit switch is away from the main motor. The first limit switch is fixed to the inner wall of the outer cylinder, and the second limit switch is fixed to the adjusting edge of the inner wall of the outer cylinder. The adjusting edge is connected to the adjusting screw at the end of the outer cylinder.

4. A motor device for convenient stroke adjustment according to claim 2 or 3, characterized in that, A compression spring is fitted onto the adjusting screw.

5. The motor device for convenient stroke adjustment according to claim 1, characterized in that, The output end of the main motor is connected to one end of the lead screw through a reduction mechanism.

6. The motor device for convenient stroke adjustment according to claim 1, characterized in that, A pin hole is provided at the end of the movable output sleeve that is away from the main motor.

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