A through-type lead screw stepper motor

Abstract

This utility model discloses a through-type lead screw stepper motor, which includes: a main body, a lead screw rotatably connected inside the main body, a left protective shell fixedly connected to the left surface of the main body, a right protective shell fixedly connected to the right surface of the main body, a left electric telescopic rod fixedly connected to the upper and lower top walls of the left protective shell, a left clamping plate fixedly connected to the extended end of the left electric telescopic rod, a left bearing fixedly connected to the left inner wall of the left protective shell, and sensors fixedly connected to the rear inner walls of the left and right protective shells. These devices help improve the stability and safety of the motor operation.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a through-type lead screw stepper motor. Background Technology

[0002] Through-type lead screw stepper motors are widely used in precision equipment due to their hollow lead screws that allow for the installation of pipelines and their compact structure. However, in traditional structures, the lead screw is supported only by bearings, which makes it prone to misalignment, shaking, or even detachment during operation due to vibration, load fluctuations, or bearing wear. This can lead to equipment downtime, decreased accuracy, and affect operational stability and safety, necessitating targeted improvements. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a through-type lead screw stepper motor. This solves the problem that when the lead screw is supported only by the bearing during the operation of the traditional through-type lead screw stepper motor, it is prone to displacement, shaking or even falling off due to vibration, load changes or component wear, which leads to unstable operation and loss of accuracy of the equipment.

[0004] This utility model also provides a through-type lead screw stepper motor, comprising: a main body, a lead screw rotatably connected inside the main body, a left protective shell fixedly connected to the left surface of the main body, a right protective shell fixedly connected to the right surface of the main body, a left electric telescopic rod fixedly connected to the upper and lower top walls of the left protective shell, a left clamping plate fixedly connected to the extended end of the left electric telescopic rod, a left bearing fixedly connected to the left inner wall of the left protective shell, and sensors fixedly connected to the rear inner walls of the left and right protective shells. These devices improve the stability and safety of motor operation.

[0005] According to the present invention, a through-type lead screw stepper motor is provided, wherein a right electric telescopic rod is fixedly connected to the upper and lower top walls of the right protective shell, and a right clamping plate is fixedly connected to the extended end of the right electric telescopic rod. The above devices are beneficial to enhancing the fixing effect on the lead screw and further preventing it from falling off.

[0006] According to the present invention, a through-type lead screw stepper motor is provided, wherein a right bearing is fixedly connected to the right inner wall of the right protective shell, and the left bearing and the right bearing are located on the left and right sides of the main body. The above device helps to ensure the smooth rotation of the lead screw and reduce wear.

[0007] According to the present invention, a through-type lead screw stepper motor is provided, wherein the main body is composed of a stator winding and a rotor (including a permanent magnet), and the lead screw passes through the main body, the left protective shell, and the right protective shell. Through the above devices, the main body is provided with stable power and the lead screw is driven to rotate.

[0008] According to the present invention, a through-type lead screw stepper motor is provided, wherein the left electric telescopic rod and the left clamping plate are located on the upper and lower sides of the lead screw, and the sensor is located behind the lead screw. The above device is beneficial for quickly clamping abnormal lead screws from the upper and lower sides.

[0009] According to the present invention, a through-type lead screw stepper motor is provided, wherein the sensor is an infrared sensor and is located on the left and right sides of the main body. The above device is useful for detecting the state of both sides of the lead screw.

[0010] Beneficial effects:

[0011] The through-type lead screw stepper motor of this technical solution monitors the lead screw status in real time through sensors. When an abnormality occurs, it controls the electric telescopic rod to drive the clamping plate to clamp the lead screw to prevent it from falling off. After the status is restored, the clamping plate is released without affecting normal operation, which helps to improve the stability and safety of motor operation. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0013] Figure 1 This is a three-dimensional structural diagram of the through-type lead screw stepper motor of this utility model;

[0014] Figure 2 This is a cross-sectional view of the through-type lead screw stepper motor of this utility model;

[0015] Figure 3 This is a cross-sectional structural diagram of the through-type lead screw stepper motor of this utility model;

[0016] Figure 4 This utility model relates to a through-type lead screw stepper motor. Figure 2 A magnified view of point C in the middle.

[0017] Legend:

[0018] 1. Main body; 2. Left protective shell; 3. Right protective shell; 4. Lead screw; 5. Left electric telescopic rod; 6. Left clamping plate; 7. Sensor; 8. Right electric telescopic rod; 9. Right clamping plate; 10. Right bearing; 11. Left bearing. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1-4This utility model discloses a through-type lead screw stepper motor, comprising: a main body 1, which is composed of a stator winding and a rotor (including a permanent magnet); a lead screw 4 is rotatably connected inside the main body 1; the lead screw 4 passes through the main body 1, a left protective shell 2, and a right protective shell 3; a left protective shell 2 is fixedly connected to the left surface of the main body 1; a left electric telescopic rod 5 is fixedly connected to the upper and lower top walls of the left protective shell 2; a left clamping plate 6 is fixedly connected to the extended end of the left electric telescopic rod 5; the left electric telescopic rod 5 and the left clamping plate 6 are located on the upper and lower sides of the lead screw 4; and the left protective shell 2... A left bearing 11 is fixedly connected to the inner wall. A right protective shell 3 is fixedly connected to the right surface of the main body 1. A right bearing 10 is fixedly connected to the right inner wall of the right protective shell 3. The left bearing 11 and the right bearing 10 are located on the left and right sides of the main body 1. A right electric telescopic rod 8 is fixedly connected to the upper and lower top walls of the right protective shell 3. A right clamping plate 9 is fixedly connected to the extended end of the right electric telescopic rod 8. A sensor 7 is fixedly connected to the rear inner walls of the left protective shell 2 and the right protective shell 3. The sensor 7 is located behind the lead screw 4. The sensor 7 is an infrared sensor and is located on the left and right sides of the main body 1.

[0021] Specifically, the main body 1, as the power output core of the through-type lead screw stepper motor, consists of a stator winding and a rotor (including a permanent magnet). The lead screw 4, as the transmission and actuation component, passes through the main body 1, the left protective shell 2, and the right protective shell 3, converting the rotational motion of the main body 1 into linear motion. The left and right protective shells 2 and 3 provide fixed fulcrums for the left electric telescopic rod 5, the left clamping plate 6, the left bearing 11, the sensor 7 (inside the left protective shell 2), and the right electric telescopic rod 8, the right clamping plate 9, and the right bearing 10 (inside the right protective shell 3), ensuring the precise relative positions of each component. Telescopic rod 5 and right electric telescopic rod 8 are the power components that drive the movement of left clamping plate 6 and right clamping plate 9. After receiving the control system signal, they extend and retract to realize the "clamping-releasing" action of left clamping plate 6 and right clamping plate 9 on lead screw. Left clamping plate 6 and right clamping plate 9 apply clamping force from the upper and lower sides of lead screw 4 to prevent lead screw 4 from falling off. Left bearing 11 and right bearing 10 support lead screw 4 to ensure its smooth rotation and reduce friction loss. Sensor 7 detects the state of lead screw 4 (such as position offset, vibration amplitude, and whether there is a tendency to fall off) and is the "sensing element" that triggers the anti-fall-off mechanism.

[0022] During operation, after the stator winding of the main body 1 is energized, it drives the rotor to rotate. The rotor drives the lead screw 4 to rotate within the main body 1. The two ends of the lead screw 4 are supported by the left bearing 11 and the right bearing 10 to ensure smooth rotation. At this time, the left electric telescopic rod 5 and the right electric telescopic rod 8 are in the retracted state, and the left clamping plate 6 and the right clamping plate 9 are separated from the lead screw 4, which does not affect the normal rotation of the lead screw 4. The left protective shell 2 and the right protective shell 3 protect the internal components. When the lead screw 4 experiences positional shift, increased shaking, or even a tendency to fall off due to vibration, excessive load, or bearing wear, the sensor 7 located behind the lead screw 4 will activate. Upon detecting this abnormal state, the signal is transmitted to the control system. After receiving the signal, the control system immediately controls the left electric telescopic rod 5 and the right electric telescopic rod 8 to extend synchronously, causing the left clamping plate 6 and the right clamping plate 9 to approach and clamp the lead screw 4 from the upper and lower sides. The left clamping plate 6 and the right clamping plate 9 fix the lead screw 4 with mechanical clamping force to prevent the lead screw from falling off the main body 1 or the bearing. When the state of the lead screw 4 is restored, the sensor 7 sends a normal signal, and the control system controls the left electric telescopic rod 5 and the right electric telescopic rod 8 to retract, releasing the left clamping plate 6 and the right clamping plate 9, so that the lead screw 4 can return to the state of free rotation.

[0023] Working principle: During normal operation, the stator winding of the main body 1 is energized to drive the rotor to rotate, and the rotor drives the lead screw 4 to rotate. The two ends of the lead screw 4 are supported by the left bearing 11 and the right bearing 10. The left electric telescopic rod 5 and the right electric telescopic rod 8 retract, and the left clamping plate 6 and the right clamping plate 9 separate from the lead screw 4 without affecting its rotation. The left protective shell 2 and the right protective shell 3 provide protection. When the lead screw 4 deviates, shakes, or has a tendency to fall off, the sensor 7 detects the abnormality and transmits a signal to the control system. The control system controls the left electric telescopic rod 5 and the right electric telescopic rod 8 to extend, driving the left clamping plate 6 and the right clamping plate 9 to clamp the lead screw 4 to prevent it from falling off. After the state of the lead screw 4 is restored, the sensor 7 sends a normal signal, the control system controls the telescopic rod to retract, the clamping plate to loosen, and the lead screw 4 can rotate freely again.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A through-type lead screw stepper motor, characterized in that, include: The main body (1) is rotatably connected to a lead screw (4). A left protective shell (2) is fixedly connected to the left surface of the main body (1). A right protective shell (3) is fixedly connected to the right surface of the main body (1). A left electric telescopic rod (5) is fixedly connected to the upper and lower top walls of the left protective shell (2). A left clamping plate (6) is fixedly connected to the extended end of the left electric telescopic rod (5). A left bearing (11) is fixedly connected to the left inner wall of the left protective shell (2). A sensor (7) is fixedly connected to the rear inner wall of the left protective shell (2) and the right protective shell (3).

2. The through-type lead screw stepper motor according to claim 1, characterized in that, The right protective shell (3) is fixedly connected to the upper and lower top walls with a right electric telescopic rod (8), and the extended end of the right electric telescopic rod (8) is fixedly connected to a right clamping plate (9).

3. A through-type lead screw stepper motor according to claim 1, characterized in that, The right inner wall of the right protective shell (3) is fixedly connected to a right bearing (10), and the left bearing (11) and the right bearing (10) are located on the left and right sides of the main body (1).

4. A through-type lead screw stepper motor according to claim 1, characterized in that, The main body (1) is composed of a stator winding and a rotor, and the lead screw (4) passes through the main body (1), the left protective shell (2), and the right protective shell (3).

5. A through-type lead screw stepper motor according to claim 1, characterized in that, The left electric telescopic rod (5) and the left clamp (6) are located on the upper and lower sides of the lead screw (4), and the sensor (7) is located behind the lead screw (4).

6. A through-type lead screw stepper motor according to claim 1, characterized in that, The sensor (7) is an infrared sensor and is located on the left and right sides of the main body (1).

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