A collision protection device for linear motors and secondary boards

Abstract

This utility model discloses an anti-collision protection device for linear motors and secondary boards, relating to the field of motor protection equipment technology. It includes a frame, an impact shaft, an impact plate, a limiting plate, a tension spring, a slotted photoelectric sensor, and a baffle. The advantages of this utility model are: through the ingenious combination of mechanical structure and photoelectric sensing, it provides a highly reliable and fast-response anti-collision protection technology for linear motors. Its structure is simple and compact, with strong anti-interference capabilities and low implementation cost. It is particularly suitable for industrial scenarios requiring continuous high-speed operation, such as express logistics sorting systems, and can effectively avoid equipment collision damage and the resulting production interruptions and economic losses.

Description

Technical Field

[0001] This utility model relates to the field of motor protection equipment technology, and in particular to an anti-collision protection device for linear motors and secondary boards. Background Technology

[0002] In modern express sorting centers, sorting carts driven by linear motors have become core equipment. As a drive device that directly generates linear motion, the linear motor needs to maintain a constant air gap between its primary and secondary plates to ensure efficient and reliable operation. However, in practical applications, due to installation errors, mechanical wear, or deformation of the equipment foundation, the air gap may be reduced. Once the air gap disappears and a hard collision occurs, it will seriously damage the expensive linear motor body, causing the entire production line to stop and resulting in significant economic losses. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, this utility model is proposed.

[0004] The purpose of this invention is to provide an anti-collision protection device for a linear motor and a secondary board. The purpose is to solve the problem that after a sorting cart has been used for a long time, the safety air gap between the cart and the linear motor decreases, which may lead to the risk of the secondary board colliding with the linear motor.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a collision protection device for a linear motor and a secondary board, comprising,

[0006] frame;

[0007] The impact shaft is fixedly mounted on the frame;

[0008] An impact plate, which is rotatably connected to the impact shaft;

[0009] A limiting plate, which is disposed on the frame, is used to limit the initial position of the impact plate;

[0010] A tension spring, connected between the impact plate and the frame, is used to provide a restoring force to the impact plate toward the limiting plate;

[0011] A slotted photoelectric sensor is mounted on the frame;

[0012] A baffle is fixedly connected to the side of the impact plate, and part of its structure extends into the groove of the slotted photoelectric sensor.

[0013] When the impact plate rotates under the force of an external force that overcomes the restoring force of the tension spring, it causes the baffle to move out of the groove, thereby triggering the groove-shaped photoelectric sensor.

[0014] As a preferred embodiment of the present invention for an anti-collision protection device for a linear motor and a secondary board, wherein the limiting plate is fixed to the bottom of the frame.

[0015] As a preferred embodiment of the present invention for an anti-collision protection device for a linear motor and a secondary board, wherein the impact shaft is fixedly connected to the inner cavity of the frame by bolts.

[0016] As a preferred embodiment of the anti-collision protection device for linear motors and secondary boards of this utility model, the slotted photoelectric sensor is a U-shaped optical coupler sensor, and the baffle blocks its optical path in the initial position.

[0017] As a preferred embodiment of the anti-collision protection device for linear motors and secondary boards according to this utility model, the baffle is welded and fixedly connected to the impact plate.

[0018] As a preferred embodiment of the anti-collision protection device for linear motors and secondary boards of this utility model, the slotted photoelectric sensor is configured to output a device power-off signal when triggered.

[0019] The beneficial effects of this utility model's anti-collision protection device for linear motors and secondary boards are as follows: through the ingenious combination of mechanical structure and photoelectric sensing, it provides a highly reliable and fast-response anti-collision protection technology for linear motors. Its structure is simple and compact, with strong anti-interference ability and low implementation cost. It is particularly suitable for industrial scenarios that require continuous high-speed operation, such as express logistics sorting systems, and can effectively avoid equipment collision damage and the resulting production interruption and economic losses. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model.

[0023] In the diagram: 1. Frame; 2. Impact shaft; 3. Impact plate; 4. Limiting plate; 5. Tension spring; 6. Groove photoelectric sensor; 7. Baffle. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0027] Example 1

[0028] like Figures 1 to 2 As shown, the present invention provides an anti-collision protection device for a linear motor and a secondary board, comprising a frame 1; an impact shaft 2, which is fixedly mounted on the frame 1; an impact plate 3, which is rotatably connected to the impact shaft 2; a limiting plate 4, which is disposed on the frame 1 and used to limit the initial position of the impact plate 3; a tension spring 5, which is connected between the impact plate 3 and the frame 1 and used to provide a restoring force for the impact plate 3 to move towards the limiting plate 4; a slotted photoelectric sensor 6, which is mounted on the frame 1; and a baffle 7, which is fixedly connected to the side of the impact plate 3. Furthermore, part of its structure extends into the groove of the slotted photoelectric sensor 6; when the impact plate 3 rotates under the force of external force overcoming the restoring force of the tension spring 5, it drives the baffle 7 to move out of the groove, thereby triggering the slotted photoelectric sensor 6; the limiting plate 4 is fixed to the bottom of the frame 1; the impact shaft 2 is fixedly connected to the inner cavity of the frame 1 by bolts; the slotted photoelectric sensor 6 is a U-shaped optical coupler sensor, and the baffle 7 blocks its optical path when in the initial position; the baffle 7 is welded and fixedly connected to the impact plate 3; the slotted photoelectric sensor 6 is configured to output a device power-off signal when triggered.

[0029] It should be noted that the frame 1 constitutes the main support structure of the device. The impact shaft 2 is fastened to the inner cavity of the frame 1 by bolts. The impact plate 3 is fitted onto the impact shaft 2 through the shaft hole and can rotate freely around it. The limiting plate 4 is fixed to the bottom of the inner cavity of the frame 1 and is used to support and limit the initial downward position of the impact plate 3.

[0030] One end of the tension spring 5 is connected to the top point of the impact plate 3, and the other end is connected to the frame 1. Under the preload of the tension spring 5, the bottom of the impact plate 3 is always tightly pulled towards and adhered to the limiting plate 4, thereby maintaining a definite and reliable initial state.

[0031] The slotted photoelectric sensor 6 is fixedly mounted on the frame 1 by bolts, with the opening of its U-shaped slot facing the impact plate 3. The baffle 7 is vertically fixed to the bottom side of the impact plate 3 by welding. In the initial state, the end of the baffle 7 is inserted into the U-shaped groove of the slotted photoelectric sensor 6, completely blocking the light path inside. At this time, the slotted photoelectric sensor 6 outputs a signal that represents the "normal" state.

[0032] In use: When the secondary plate impacts the impact plate 3 located on its path of motion, the impact plate 3, after being pushed, overcomes the tension of the tension spring 5 and rotates around the impact shaft 2. As the impact plate 3 rotates, the baffle 7 welded to it also rotates synchronously and gradually moves out of the U-shaped groove of the slotted photoelectric sensor 6. When the baffle 7 is completely removed from the groove and no longer blocks the light path, the internal light path of the slotted photoelectric sensor 6 is opened, and its output state immediately changes, releasing a "danger" signal.

[0033] In summary, by cleverly combining mechanical structure and photoelectric sensing, a highly reliable and fast-response anti-collision protection technology is provided for linear motors. Its structure is simple and compact, with strong anti-interference ability and low implementation cost. It is particularly suitable for industrial scenarios that require continuous high-speed operation, such as express logistics sorting systems, and can effectively avoid equipment collision damage and the resulting production interruption and economic losses.

[0034] Importantly, the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A collision protection device for a linear motor and a secondary board, characterized in that: include, Framework (1); Impact shaft (2), which is fixedly installed on the frame (1); Impact plate (3), which is rotatably connected to the impact shaft (2); A limiting plate (4) is disposed on the frame (1) to limit the initial position of the impact plate (3); A tension spring (5), which is connected between the impact plate (3) and the frame (1), is used to provide the impact plate (3) with a restoring force that tends towards the limiting plate; A slotted photoelectric sensor (6) is mounted on the frame (1); A baffle (7) is fixedly connected to the side of the impact plate (3), and part of its structure extends into the groove of the slotted photoelectric sensor (6); When the impact plate (3) rotates under the force of external force to overcome the restoring force of the tension spring (5), it drives the baffle (7) to move out of the groove, thereby triggering the groove-shaped photoelectric sensor (6).

2. The anti-collision protection device for linear motors and secondary boards as described in claim 1, characterized in that: The limiting plate (4) is fixed to the bottom of the frame (1).

3. The anti-collision protection device for linear motors and secondary boards as described in claim 1, characterized in that: The impact shaft (2) is fixedly connected to the inner cavity of the frame (1) by bolts.

4. The anti-collision protection device for linear motors and secondary boards as described in claim 1, characterized in that: The slotted photoelectric sensor (6) is a U-shaped optical coupler sensor, and the baffle (7) blocks its optical path in the initial position.

5. The anti-collision protection device for linear motors and secondary boards as described in claim 1, characterized in that: The baffle (7) is welded and fixedly connected to the impact plate (3).

6. The anti-collision protection device for linear motors and secondary boards as described in claim 1, characterized in that: The slotted photoelectric sensor (6) is configured to output a device power-off signal when triggered.

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