A coil lifting safety protection device

Abstract

The application discloses a kind of coiled material lifting safety protection devices, including rack, gas expansion shaft and lifting seat, lifting seat is lifted along guide rail, it is equipped with transmission chain, transmission sprocket, upper and lower guide sprocket and power source.The upper guide sprocket guides chain one end vertically connects lifting seat, the lower guide sprocket guides chain other end vertically connects lifting seat and is installed on slider, slider is connected with rack by elastic support, and alarm sensor and sensing point are arranged on one side of slider;Mechanical limit block and limit sensor are arranged on the upper and lower ends of lifting path.When coiled material is lowered and encounters obstacle, chain is retracted to drive slider to move, triggers alarm sensor to interrupt movement;Double limit design prevents overtravel.The device realizes real-time safety monitoring, protects personal and equipment safety, transmission is stable, and is suitable for coiled material lifting scene.

Description

Technical Field

[0001] This invention relates to an improved invention of a protective device, and more particularly to an improved invention of a safety protection device for lifting rolled materials. Background Technology

[0002] Existing roll material lifting devices lack real-time and effective safety monitoring and protection mechanisms when there are obstacles or abnormal loads on the roll material's descent path, which can easily lead to equipment damage or personal safety risks. Traditional devices mostly rely on single mechanical limit switches or manual observation, resulting in delayed responses and difficulty in quickly stopping the movement in emergency situations, thus posing safety hazards. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a safety protection device for lifting and lowering roll materials.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This type of roll material lifting safety protection device includes a frame and an air shaft. The frame is equipped with an air shaft mounting base, which is fixed to a lifting seat. The lifting seat is movably mounted on a lifting guide rail. The device is characterized in that: the lifting seat is equipped with a transmission chain, which includes a transmission sprocket, an upper guide sprocket, a lower guide sprocket, and a power source. The transmission sprocket is located inside the lifting seat. The upper and lower guide sprockets are located above and below the lifting seat, respectively. The upper guide sprocket guides one end of the transmission chain vertically to the lifting seat, and the lower guide sprocket guides the other end of the transmission chain vertically to the lifting seat. The lower guide sprocket is mounted on a slider, which is movably mounted on the frame. The slider is equipped with an elastic support member, and an alarm sensor is provided on one side of the slider. A sensing point is provided on the corresponding slider. Mechanical limit blocks and limit sensors are respectively provided at the upper and lower ends of the lifting path of the lifting seat. The mechanical limit blocks cooperate with the lifting seat for limiting, and the limit sensors cooperate with the lifting seat for sensing.

[0005] The sensing point is a protrusion on the slider. The protrusion cooperates with the alarm sensor. When the transmission chain retracts, the protrusion moves with the slider to the sensing position of the alarm sensor, and the alarm sensor sends an alarm signal.

[0006] The slider has a groove in the middle, and a guide bolt is installed in the groove. The guide bolt is fixed to the frame.

[0007] The elastic support is a spring, with one end of the spring connected to one end of the slider and the other end of the spring connected to the limiting plate, which is fixed to the frame.

[0008] The transmission chain rotates 90 degrees at the lower guide sprocket, and the corresponding guide slider is movable and set on the diagonal.

[0009] One end of the transmission chain is connected to the upper middle part of the lifting seat.

[0010] The other end of the transmission chain is connected to the upper end of the lifting seat via a connecting plate.

[0011] The transmission chain rotates 180 degrees at the transmission sprocket.

[0012] The beneficial effects of this invention are that the improved lifting safety protection device realizes real-time monitoring and risk control of the lifting process: 1. Obstacle detection and alarm: Through the cooperation of slider, elastic support and alarm sensor, when there is an obstacle under the roll material causing the transmission chain to retract, the slider moves to trigger the alarm and interrupt the movement, avoiding damage to equipment and personnel; 2. Dual limit protection: The mechanical limit blocks and limit sensors at the upper and lower ends of the lifting path form a physical and electronic dual limit to prevent the lifting seat from running beyond its range. Attached Figure Description

[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a right view of the structure of the present invention.

[0016] Figure 3 For the present invention Figure 2 AA sectional view. Detailed Implementation

[0017] The accompanying drawings illustrate the structure of the present invention, and further details will be described below in conjunction with the drawings. In this embodiment, see the attached drawings. Figure 1-3The roll material lifting safety protection device includes a frame 1 and an air shaft 2. The frame 1 is equipped with an air shaft 2 mounting base 3, which is fixed to a lifting seat 4. The lifting seat 4 is movably mounted on a lifting guide rail 5, which is mounted on the frame 1. The lifting seat 4 is equipped with a transmission chain 6, which includes a transmission sprocket 7, an upper guide sprocket 8, a lower guide sprocket 9, and a power source. The power source is preferably a servo motor. The transmission sprocket 7 is located inside the lifting seat 4, and the upper guide sprocket 8 and lower guide sprocket 9 are located above and below the lifting seat 4, respectively. The upper guide sprocket 8 guides... One end of the transmission chain 6 is connected vertically to the lifting seat 4, and the other end of the transmission chain 6 is guided vertically to the lifting seat 4 by the lower guide sprocket 9. The lower guide sprocket 9 is mounted on the slider 10, which is movably mounted on the frame 1. The slider 10 is equipped with an elastic support 11, and an alarm sensor 12 is provided on one side of the slider 10. A sensing point 13 is provided on the corresponding slider 10. The upper and lower ends of the lifting path of the lifting seat 4 are respectively equipped with a mechanical limit block 14 and a limit sensor 15. The mechanical limit block 14 is in a limiting engagement with the lifting seat 4, and the limit sensor 15 is in a sensing engagement with the lifting seat 4. The alarm sensor 12 and the limit sensor 15 are both connected to the control system signal of the protection device, and the power source is controlled by the control system.

[0018] As a further improved specific implementation, the sensing point 13 is a protrusion on the slider 10. The protrusion is preferably a bolt connected to the slider 10. The protrusion is in sensing cooperation with the alarm sensor 12. When the transmission chain 6 retracts and the protrusion moves with the slider 10 to the sensing position of the alarm sensor 12, the alarm sensor 12 sends an alarm signal.

[0019] As a further improved specific implementation, the slider 10 is provided with a groove in the middle, and a guide bolt 16 is provided in the groove. The guide bolt is fixed on the frame 1, that is, the slider 10 is restricted to the guide bolt 16 by the groove and can move along the guide bolt. There are two or more guide bolts spaced apart to form a stable guide.

[0020] As a further improved specific implementation, the elastic support 11 is a spring, one end of the spring is connected to one end of the slider 10, and the other end of the spring is connected to the limiting plate, which is fixed to the frame 1.

[0021] As a further improved embodiment, the transmission chain 6 rotates 90 degrees at the lower guide sprocket 9, and the corresponding guide slider 10 is movably arranged on the diagonal, improving the smoothness of the transmission chain 6 contracting to drive the guide slider 10 to move.

[0022] As a further improved implementation, one end of the transmission chain 6 is connected to the upper middle part of the lifting seat 4, so that the force exerted by the transmission chain 6 on the lifting seat 4 is in a straight line with the lifting guide rail 5, thus ensuring transmission stability.

[0023] As a further improved implementation, the other end of the transmission chain 6 is connected to the upper end of the lifting seat 4 via a connecting plate, avoiding the bottom of the lifting seat 4 and preventing interference with the lower limit of the bottom of the lifting seat 4.

[0024] As a further improved implementation, the transmission chain 6 rotates 180 degrees at the transmission sprocket 7, and an auxiliary sprocket is set on the outside of the transmission chain 6 to improve the transmission stability between the transmission chain 6 and the transmission sprocket 7.

[0025] The working principle of this invention is as follows: the power source drives the transmission sprocket 7 to move the transmission chain 6, which is guided by the upper guide sprocket 8 and the lower guide sprocket 9. Both ends of the transmission chain 6 are connected to the lifting seat 4, enabling the lifting seat 4 to move up and down along the lifting guide rail 5. The lower guide sprocket 9 is mounted on the slider 10, which is connected to the frame 1 via an elastic support 11. During normal lifting, the elastic support 11 maintains balance. If the roll material encounters an obstacle during descent, the transmission chain 6 contracts under force, causing the slider 10 to move against the spring force. A protrusion on the slider 10 triggers the alarm sensor 12, sending a signal to interrupt the power source. Simultaneously, the mechanical limit blocks 14 and limit sensors 15 at the upper and lower ends of the lifting path limit the travel of the lifting seat 4 from both physical and electronic perspectives, ensuring safe operation.

[0026] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A roll material lifting safety protection device, comprising a frame and an air shaft, wherein the frame is equipped with an air shaft mounting base, the mounting bases being fixed to a lifting seat, and the lifting seat being movably mounted on a lifting guide rail, characterized in that: The lifting platform is equipped with a transmission chain, which includes a transmission sprocket, an upper guide sprocket, a lower guide sprocket, and a power source. The transmission sprocket is located inside the lifting platform, while the upper and lower guide sprockets are located above and below the lifting platform, respectively. The upper guide sprocket guides one end of the transmission chain vertically to the lifting platform, and the lower guide sprocket guides the other end of the transmission chain vertically to the lifting platform. The lower guide sprocket is mounted on a slider, which is movably mounted on a frame and equipped with an elastic support. An alarm sensor is located on one side of the slider, and a sensing point is located on the corresponding slider. Mechanical limit blocks and limit sensors are located at the upper and lower ends of the lifting path of the lifting platform, respectively. The mechanical limit blocks engage with the lifting platform for limiting, and the limit sensors engage with the lifting platform for sensing.

2. The roll material lifting safety protection device as described in claim 1, characterized in that: The sensing point is a protrusion on the slider. The protrusion cooperates with the alarm sensor. When the transmission chain retracts, the protrusion moves with the slider to the sensing position of the alarm sensor, and the alarm sensor sends an alarm signal.

3. The roll material lifting safety protection device as described in claim 1, characterized in that: The slider has a groove in the middle, and a guide bolt is installed in the groove. The guide bolt is fixed to the frame.

4. The roll material lifting safety protection device as described in claim 1, characterized in that: The elastic support is a spring, with one end of the spring connected to one end of the slider and the other end of the spring connected to the limiting plate, which is fixed to the frame.

5. The roll material lifting safety protection device as described in claim 1, characterized in that: The transmission chain rotates 90 degrees at the lower guide sprocket, and the corresponding guide slider is movable and set on the diagonal.

6. The roll material lifting safety protection device as described in claim 1, characterized in that: One end of the transmission chain is connected to the upper middle part of the lifting seat.

7. The roll material lifting safety protection device as described in claim 1, characterized in that: The other end of the transmission chain is connected to the upper end of the lifting seat via a connecting plate.

8. The roll material lifting safety protection device as described in claim 1, characterized in that: The transmission chain rotates 180 degrees at the transmission sprocket.

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