Telescopic protection device of conveyor

Abstract

The utility model relates to the technical field of telescopic conveyors, in particular to a conveyor telescopic protection device which comprises a fixed conveying frame, a movable conveying frame is connected to the left side of the upper portion of the fixed conveying frame in a sliding mode, and hydraulic pushers are fixedly connected to the front side and the rear side of the movable conveying frame. The right end of a piston rod of the hydraulic pusher is fixedly connected to the right side of the fixed conveying frame, a rotating frame is movably connected to the left side of the outer wall of the movable conveying frame, a movable box is fixedly connected to the left side of the front of the movable conveying frame, a control table is fixedly connected to the middle of the front of the movable box, and a braking mechanism is arranged on the left side of the rotating frame. And a rotating mechanism is arranged in the movable box. According to the hydraulic pushing device, timely braking of the hydraulic pushing device and rotating storage of the braking mechanism are achieved, and the protection performance and convenience of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic conveyors, in particular to a telescopic protection device for conveyors. Background Art

[0002] A telescopic conveyor is a belt conveyor with a telescopic mechanism. It features several telescopic boxes nested within each other, each equipped with a conveyor belt. These boxes slide freely across the length of the belt, adjusting the conveying length. During operation, because the telescopic boxes are driven to extend and retract by a motor, the frontmost box can easily collide with the operator or other objects when the conveyor extends, potentially causing a safety hazard. Therefore, a collision avoidance switch is typically installed at the front of the conveyor to control the motor to stop, halting the extension movement.

[0003] Existing devices primarily employ a switch that triggers an anti-collision component for protection. Many existing technologies are similar to protective devices for telescopic conveyors. Publication No. CN204507993U includes a telescopic box with a horizontal anti-collision bar at the front end. The anti-collision bar is connected to a guide mechanism that pivots the bar up and down. The guide mechanism is connected to a travel switch that controls the retraction of the telescopic box. The anti-collision bar triggers the travel switch when it moves up and down. This utility model retracts the telescopic conveyor by triggering the travel switch through downward rotation of the anti-collision bar, thereby increasing the safety of telescopic conveyor operation. However, this device still has room for improvement.

[0004] The existing devices mainly monitor the status of the anti-collision bar through the travel switch, so that some devices need to wait for the triggering of the travel switch to close the circuit of the telescopic mechanism, which makes it difficult for some devices to interrupt the telescopic operation of the conveyor in time. At the same time, it is difficult for some devices to rotate and store the brake mechanism under the movable conveyor frame, which causes some brake mechanisms to affect the transportation of materials and reduce the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a conveyor telescopic protection device is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a conveyor telescopic protection device to solve the problem that the existing devices in the prior art mentioned in the above background technology mainly monitor the status of the anti-collision bar through the limit switch, so that some devices need to wait for the triggering of the limit switch to close the circuit of the telescopic mechanism, which makes it difficult for some devices to interrupt the telescopic operation of the conveyor in time, and at the same time, it is difficult for some devices to rotate the brake mechanism to be stored under the movable conveying frame, which causes some brake mechanisms to affect the transportation of materials.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conveyor telescopic protection device comprises a fixed conveyor frame, a movable conveyor frame is slidably connected to the upper left side of the fixed conveyor frame, a hydraulic pusher is fixedly connected to the front and rear sides of the movable conveyor frame, the right end of the hydraulic pusher piston rod is fixedly connected to the right side of the fixed conveyor frame, a rotating frame is movably connected to the left side of the outer wall of the movable conveyor frame, a movable box is fixedly connected to the left side of the front of the movable conveyor frame, and a control console is fixedly connected to the middle of the front of the movable box;

[0007] A braking mechanism is provided on the left side of the rotating frame, and the braking mechanism includes an anti-collision plate. The anti-collision plate is provided on the left side of the rotating frame. A rotating mechanism is provided inside the movable box, and the rotating mechanism includes a servo motor. The bottom of the servo motor is fixedly connected to the top right side of the movable box.

[0008] Preferably, a telescopic cylinder is fixedly connected to the right side of the anti-collision plate, and the right end of the telescopic cylinder is fixedly connected to the left side of the rotating frame.

[0009] Preferably, a spring is fixedly connected to the outer ring of the telescopic cylinder on the right side of the anti-collision plate, and the right end of the spring is fixedly connected to the left side of the rotating frame.

[0010] Preferably, a proximity switch is fixedly connected to the inner wall of the middle portion of the rotating frame, and the proximity switch is connected in series in the circuit of the hydraulic pusher.

[0011] Preferably, a transmission worm is fixedly connected to the middle of the bottom of the servo motor, and the bottom end of the transmission worm passes through the top of the movable box and is movably connected to the bottom of the inner wall of the movable box.

[0012] Preferably, the left side of the outer wall of the transmission worm is meshed with a transmission worm wheel, the inner wall of the transmission worm wheel is fixedly connected with a rotating shaft, the front end of the rotating shaft is movably connected to the front side of the inner wall of the movable box, and the rear end of the rotating shaft is fixedly connected to the front side of the rotating frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model uses the anti-collision plate, telescopic cylinder, spring and proximity switch in the braking mechanism. When the anti-collision plate contacts the obstacle and slides to the right, the anti-collision plate contracts the telescopic cylinder and compresses the spring, so that the proximity switch detects the approach of the anti-collision plate and disconnects the circuit of the hydraulic pusher, thereby realizing the braking of the hydraulic pusher. It allows some devices to interrupt the telescopic operation in time when facing obstacles, facilitates the telescopic protection of the telescopic conveyor, and improves the protection and practicality of the device.

[0015] 2. The utility model uses the servo motor, transmission worm, transmission worm wheel and rotating shaft in the rotating mechanism, and starts the servo motor through the console. The servo motor drives the transmission worm to limit rotation, the transmission worm engages to drive the transmission worm wheel to rotate, the transmission worm wheel drives the rotating shaft to limit rotation, and the rotating shaft drives the rotating frame to rotate synchronously, thereby realizing the rotation of the rotating frame, so that some devices can rotate and store the braking mechanism under the movable conveying frame, effectively avoiding the braking mechanism from affecting the transportation of materials, and improving the convenience and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front and side perspective view of the structure of the present invention;

[0017] Figure 2 This is a front view sectional perspective diagram of the structure of the present utility model;

[0018] Figure 3 This is a front top perspective view of the partial structure of the rotating frame and the braking mechanism of the utility model;

[0019] Figure 4 It is a left side sectional perspective view of the partial structure of the movable box and the rotating mechanism of the utility model.

[0020] In the figure: 11. Fixed conveyor frame; 12. Movable conveyor frame; 13. Hydraulic pusher; 14. Rotating frame; 15. Movable box; 16. Control console; 2. Braking mechanism; 21. Anti-collision plate; 22. Telescopic cylinder; 23. Spring; 24. Proximity switch; 3. Rotating mechanism; 31. Servo motor; 32. Transmission worm; 33. Transmission worm gear; 34. Rotating shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] The conveyor telescopic protection device includes a fixed conveyor frame 11, a movable conveyor frame 12 is slidably connected to the upper left side of the fixed conveyor frame 11, a hydraulic pusher 13 is fixedly connected to the front and rear sides of the movable conveyor frame 12, the right end of the piston rod of the hydraulic pusher 13 is fixedly connected to the right side of the fixed conveyor frame 11, a rotating frame 14 is movably connected to the left side of the outer wall of the movable conveyor frame 12, a movable box 15 is fixedly connected to the left side of the front of the movable conveyor frame 12, and a control console 16 is fixedly connected to the middle of the front of the movable box 15;

[0024] A braking mechanism 2 is provided on the left side of the rotating frame 14, and the braking mechanism 2 includes an anti-collision plate 21, which is provided on the left side of the rotating frame 14, and a telescopic cylinder 22 is fixedly connected to the right side of the anti-collision plate 21, and the right end of the telescopic cylinder 22 is fixedly connected to the left side of the rotating frame 14. Through this design, the anti-collision plate 21 can slide limitedly relative to the rotating frame 14, and a spring 23 is fixedly connected to the outer ring of the telescopic cylinder 22 on the right side of the anti-collision plate 21, and the right end of the spring 23 is fixedly connected to the left side of the rotating frame 14. Through this design, the force buffering and automatic reset of the anti-collision plate 21 are achieved, and a proximity switch 24 is fixedly connected to the inner wall of the middle part of the rotating frame 14, and the proximity switch 24 is connected in series in the circuit of the hydraulic pusher 13. Through this design, the proximity switch 24 can monitor the position of the anti-collision plate 21 in real time and brake the hydraulic pusher 13.

[0025] The movable box 15 is provided with a rotating mechanism 3 inside, which includes a servo motor 31. The bottom of the servo motor 31 is fixedly connected to the top right side of the movable box 15. The middle of the bottom of the servo motor 31 is fixedly connected to a transmission worm 32. The bottom end of the transmission worm 32 passes through the top of the movable box 15 and is movably connected to the bottom of the inner wall of the movable box 15. Through this design, the servo motor 31 drives the transmission worm 32 to rotate in a limited manner. The left side of the outer wall of the transmission worm 32 is meshed with a transmission worm gear 33. The inner wall of the transmission worm gear 33 is fixedly connected with a rotating shaft 34. The front end of the rotating shaft 34 is movably connected to the front side of the inner wall of the movable box 15, and the rear end of the rotating shaft 34 is fixedly connected to the front side of the rotating frame 14. Through this design, the transmission worm 32 is meshed to drive the transmission worm gear 33, the rotating shaft 34 and the rotating frame 14 to rotate in a limited manner, which facilitates the storage of the rotating frame 14 and the braking mechanism 2 under the movable conveying frame 12.

[0026] Working principle: When the hydraulic pusher 13 needs to be braked, the anti-collision plate 21 first contacts the obstacle and slides to the right. The anti-collision plate 21 contracts the telescopic cylinder 22 and compresses the spring 23, so that the proximity switch 24 detects the approach of the anti-collision plate 21 and disconnects the circuit of the hydraulic pusher 13, thereby realizing the braking operation of the hydraulic pusher 13.

[0027] When the rotating frame 14 needs to be rotated, the servo motor 31 is first started through the console 16. The servo motor 31 drives the transmission worm 32 to limit the rotation. The transmission worm 32 engages and drives the transmission worm wheel 33 to rotate. The transmission worm wheel 33 drives the rotating shaft 34 to limit the rotation. The rotating shaft 34 drives the rotating frame 14 to rotate synchronously, thereby realizing the rotation operation of the rotating frame 14. The operation ends here.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A conveyor telescopic protection device, comprising a fixed conveyor frame (11), characterized in that: The upper left side of the fixed conveying frame (11) is slidably connected to a movable conveying frame (12), the front and rear sides of the movable conveying frame (12) are fixedly connected to hydraulic pushers (13), the right end of the piston rod of the hydraulic pusher (13) is fixedly connected to the right side of the fixed conveying frame (11), the left side of the outer wall of the movable conveying frame (12) is movably connected to a rotating frame (14), the left side of the front of the movable conveying frame (12) is fixedly connected to a movable box (15), and the middle part of the front of the movable box (15) is fixedly connected to a control console (16); A braking mechanism (2) is provided on the left side of the rotating frame (14), and the braking mechanism (2) includes an anti-collision plate (21). The anti-collision plate (21) is provided on the left side of the rotating frame (14). A rotating mechanism (3) is provided inside the movable box (15), and the rotating mechanism (3) includes a servo motor (31). The bottom of the servo motor (31) is fixedly connected to the top right side of the movable box (15).

2. The conveyor telescopic protection device according to claim 1, characterized in that: The right side of the anti-collision plate (21) is fixedly connected to a telescopic cylinder (22), and the right end of the telescopic cylinder (22) is fixedly connected to the left side of the rotating frame (14).

3. The conveyor telescopic protection device according to claim 2, characterized in that: The right side of the anti-collision plate (21) is located at the outer ring of the telescopic cylinder (22) and is fixedly connected to a spring (23), and the right end of the spring (23) is fixedly connected to the left side of the rotating frame (14).

4. The conveyor telescopic protection device according to claim 1, characterized in that: A proximity switch (24) is fixedly connected to the inner wall of the middle portion of the rotating frame (14), and the proximity switch (24) is connected in series in the circuit of the hydraulic pusher (13).

5. The conveyor telescopic protection device according to claim 1, characterized in that: A transmission worm (32) is fixedly connected to the middle of the bottom of the servo motor (31), and the bottom end of the transmission worm (32) passes through the top of the movable box (15) and is movably connected to the bottom of the inner wall of the movable box (15).

6. The conveyor telescopic protection device according to claim 5, characterized in that: The left side of the outer wall of the transmission worm (32) is meshedly connected with a transmission worm wheel (33), the inner wall of the transmission worm wheel (33) is fixedly connected with a rotating shaft (34), the front end of the rotating shaft (34) is movably connected to the front side of the inner wall of the movable box (15), and the rear end of the rotating shaft (34) is fixedly connected to the front side of the rotating frame (14).

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