Automatically leveling belt conveyor rotary suspension device

Abstract

The present application discloses an automatically leveling belt conveyor rotary suspension device, comprising an inner belt conveyor hinged on a base, an outer belt conveyor hinged on one end of the inner belt conveyor away from the base via a rotary suspension device, and the outer belt conveyor performing pitching or rotary motion around the inner belt conveyor. The device also includes a leveling drive mechanism for driving the rotary suspension device to rotate and an angle sensor for detecting the tilt angle and tilt direction of the rotary suspension device. A PLC controller electrically connected to the angle sensor and the leveling drive mechanism is also provided between the inner and outer belt conveyors. The present invention can automatically level the rotary plane in real time, thereby allowing the outer belt conveyor suspended thereunder to rotate smoothly, thereby greatly increasing the unloading point coverage of the outer belt conveyor and enabling the application of folding-arm pitching rotary belt conveyors.

Description

Technical Field

[0001] The invention relates to the technical field of electromechanical equipment, in particular to an automatic leveling belt conveyor rotary suspension device. Background Art

[0002] Continuous conveyor belts are widely used in the engineering field, but the discharge terminals of most belt conveyors are fixed belt conveyors or single-line pitching and rotating belt conveyors. The discharge point of a fixed belt conveyor is a fixed point. The discharge point of a single-line pitching and rotating belt conveyor is an entire or partial fan-shaped surface. The discharge point coverage of both fixed belt conveyors and single-line pitching and rotating belt conveyors is very limited. In a folding-arm pitching and rotating discharging belt conveyor, since both the inner and outer belt conveyors can pitch and rotate, the rotating plane of the outer belt conveyor will inevitably tilt if there is no special leveling device. A tilted rotating plane will cause the outer belt conveyor to deflect after rotation, resulting in belt deviation, material spillage, or even malfunction. It can also increase the rotating resistance of the outer belt conveyor, preventing it from rotating normally. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an automatically leveling belt conveyor rotary suspension device.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An automatically leveling belt conveyor rotary suspension device includes an inner belt conveyor hinged on a base, an outer belt conveyor hinged to one end of the inner belt conveyor away from the base through a suspension device, and the outer belt conveyor performs pitching or rotary motion around the inner belt conveyor. The device also includes a leveling drive mechanism for driving the rotary suspension device to rotate and an angle sensor for detecting the inclination angle and inclination direction of the rotary suspension device. A PLC controller electrically connected to the angle sensor and the leveling drive mechanism is also provided between the inner and outer belt conveyors.

[0006] In an embodiment of the present invention, the slewing suspension device also includes an upper suspension hinge, a suspension upper part, a suspension lower part and a lower suspension hinge. The suspension upper part is hinged to one end of the inner belt conveyor through the upper suspension hinge. A slewing bearing is connected between the suspension upper part and the suspension lower part. One end of the outer belt conveyor is hinged to the lower suspension hinge. A leveling device hinge is connected between the leveling drive mechanism and the suspension upper part.

[0007] In the embodiment of the present invention, an angle sensor is provided on the slewing suspension device.

[0008] In the embodiment of the present invention, the slewing bearing is a sliding slewing plate or a rolling slewing bearing.

[0009] In the embodiment of the present invention, the actuator of the leveling drive mechanism is a screw lift, a hydraulic cylinder, an electric push rod or an electric cylinder.

[0010] The beneficial effects of the present invention are: the rotating plane can be automatically leveled in real time, so that the outer belt conveyor suspended thereunder can rotate smoothly, thereby greatly increasing the unloading point coverage of the outer belt conveyor and enabling the application of the folding arm pitching rotating belt conveyor.

[0011] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a folding arm type pitching rotary belt conveyor corresponding to the automatic leveling belt conveyor rotary suspension device of the present invention;

[0013] Figure 2 It is a top view of a folding arm type pitching rotary belt conveyor corresponding to the automatic leveling belt conveyor rotary suspension device of the present invention;

[0014] Figure 3 Schematic diagram of the discharging coverage of the folding arm type pitching rotary belt conveyor corresponding to the automatic leveling belt conveyor rotary suspension device of the present invention;

[0015] Figure 4 Schematic diagram of the deflection of the outer belt conveyor's rotary axis when the automatic leveling belt conveyor rotary suspension device of the present invention has no leveling device;

[0016] Figure 5 yes Figure 1 A local enlarged schematic diagram of point I in the middle;

[0017] Figure 6 It is a structural schematic diagram of the automatic leveling belt conveyor rotary suspension device of the present invention;

[0018] Figure 7 This is a clockwise tilted schematic diagram of the automatic leveling belt conveyor rotary suspension device of the present invention;

[0019] Figure 8 It is a schematic diagram of the counterclockwise tilt of the automatic leveling belt conveyor rotary suspension device of the present invention.

[0020] The reference numerals in the figures are:

[0021] 1. Inner belt conveyor; 3. Outer belt conveyor; 4. Base; 21. Angle sensor; 22. Upper suspension; 23. Slewing bearing; 24. Lower suspension; 25. Leveling drive mechanism; 26. PLC controller; 221. Upper suspension hinge; 222. Leveling device hinge; 241. Lower suspension hinge. DETAILED DESCRIPTION

[0022] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0023] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0024] like Figure 1-8 As shown, an embodiment of the present invention proposes an automatically leveling belt conveyor rotary suspension device, comprising an inner belt conveyor 1 hinged on a base 4. The inner belt conveyor 1 has an outer belt conveyor 3 hingedly connected to its end away from the base 4 via a rotary suspension device. The outer belt conveyor 3 performs pitching or rotary motion around the inner belt conveyor 1. The device also includes a leveling drive mechanism 25 for driving the rotary suspension device to rotate and an angle sensor 21 for detecting the tilt angle and tilt direction of the rotary suspension device. A PLC controller 26 electrically connected to the angle sensor 21 and the leveling drive mechanism 25 is also provided between the inner belt conveyor 1 and the outer belt conveyor 3. Specifically, in this embodiment, the actuator of the leveling drive mechanism 25 is a screw elevator.

[0025] In this embodiment, the rotary suspension device also includes an upper suspension hinge 221, a suspension upper part 22, a suspension lower part 24 and a lower suspension hinge 241. The suspension upper part 22 is hinged to one end of the inner belt conveyor 1 through the upper suspension hinge 221. A rotary bearing 23 is connected between the suspension upper part 22 and the suspension lower part 24. One end of the outer belt conveyor 3 is hinged to the lower suspension hinge 241 of the suspension lower part 24. A leveling device hinge 222 is connected between the leveling drive mechanism 25 and the suspension upper part 22.

[0026] Reference Figure 1 In the folding arm type pitching rotary belt conveyor corresponding to the automatic leveling belt conveyor rotary suspension device of the embodiment of the present invention, the root of the inner belt conveyor 1 is hinged at point A, and a rotary support is set at point A. Figure 1 In the figure, the inner belt conveyor 1 can do pitch rotation around point A. Figure 2 In the middle, the inner belt conveyor can rotate around point A.

[0027] The root of the outer belt conveyor is hinged at point B and is lifted by other lifting equipment at point C in the middle. Figure 1 In the figure, the outer belt conveyor 3 can do pitch rotation around the hinge point at point B. Figure 2 In the embodiment, the outer belt conveyor 3 can rotate around the rotation axis of the suspension device at point B.

[0028] Both the inner and outer belt conveyors can pitch about their respective hinge points. When inner belt conveyor 1 pitches up or down a certain angle around point A, point B will experience horizontal displacement, reducing the horizontal distance between A and B. When outer belt conveyor 3 pitches up or down a certain angle around point B, point C will experience horizontal displacement, reducing the horizontal distance between B and C. Without a leveling device, the outer belt conveyor's suspension at point B will inevitably tilt. Furthermore, wind loads and the tilting of other lifting equipment at point C can also cause the outer belt conveyor's suspension to tilt.

[0029] When the belt conveyor suspension device tilts, the rotation axis of the outer belt conveyor 3 will deviate. Figure 4 , Attachment Figure 5 As shown in the figure, the EE axis is the rotation axis of the outer belt conveyor 3. If the rotation axis is deflected, the outer belt conveyor 3 will produce the following after rotation. Figure 4 The deflection shown in the figure will lead to: 1. The belt will deviate, spill material, or even fail to work normally; 2. The rotation resistance of the outer belt conveyor will increase, and it may even fail to rotate normally.

[0030] The angle sensor 21 detects the suspension's tilt angle and direction in real time and continuously transmits this data to the PLC controller 26. The PLC controller 26 performs a logical analysis. If the tilt angle exceeds a set minimum allowable value, it issues an extension or retraction command to the leveling drive 25, depending on the direction of the tilt. The leveling drive 25 reduces the suspension's tilt angle by extending or retracting. If the tilt angle is within the set minimum allowable value, the PLC controller issues a stop command to the actuator.

[0031] More specifically, after the screw lift receives instructions from the PLC controller 26, the screw can be extended or retracted under the drive of the motor, pushing or pulling the suspension device to rotate around the upper suspension hinge 221 in the direction opposite to the tilt angle, thereby reducing the tilt angle of the suspension device. When the tilt angle is reduced to within the allowable value range, the PLC controller 26 sends a stop command to the screw lift after logical judgment, and the adjustment process is completed.

[0032] As attached Figure 7 As shown, when the inclination angle of the suspension device is clockwise and exceeds the set value, the PLC controller 26 sends a retraction signal to the screw elevator, the screw of the screw elevator retracts, and pulls the suspension device to rotate counterclockwise around the upper suspension hinge shaft 221, thereby reducing the inclination angle of the suspension device until the inclination angle is less than the set value, and the PLC controller 26 sends a stop command to the screw elevator.

[0033] On the contrary, as attached Figure 8 As shown, when the inclination angle of the suspension device is in the counterclockwise direction and exceeds the set value, the PLC controller 26 sends an extension signal to the screw elevator, and the screw of the screw elevator extends, pushing the suspension device to rotate clockwise around the upper suspension hinge shaft 221, thereby reducing the inclination angle of the suspension device until the inclination angle is less than the set value, and the PLC controller sends a stop command to the screw elevator.

[0034] Angle sensor 21 detects the suspension's inclination in real time and continuously transmits this data to PLC controller 26. Once the inclination exceeds the set tolerance, PLC controller 26 issues an action command to the lead screw jack, which responds immediately and quickly extends or retracts. This adjustment process is completed in a fraction of a second, ensuring the suspension's rotational plane remains horizontal.

[0035] In this embodiment, the angle sensor 21 is provided at the suspension upper portion 22 .

[0036] In this embodiment, the slewing bearing 23 is a sliding slewing plate.

[0037] In this embodiment, the actuator of the driving mechanism 25 may also be a hydraulic cylinder, an electric push rod or an electric cylinder.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied to other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. An automatic leveling belt conveyor rotary suspension device, comprising an inner belt conveyor hinged on a base, an outer belt conveyor hinged to the end of the inner belt conveyor away from the base through a suspension device, and the outer belt conveyor performs pitching or rotary motion around the inner belt conveyor, characterized in that: It also includes a leveling drive mechanism for driving the slewing suspension device to rotate and an angle sensor for detecting the tilt angle and tilt direction of the slewing suspension device. A PLC controller electrically connected to the angle sensor and the leveling drive mechanism is provided between the inner belt conveyor and the outer belt conveyor. The slewing suspension device also includes an upper suspension hinge, a suspension upper part, a suspension lower part and a lower suspension hinge. The suspension upper part is hinged to one end of the inner belt conveyor through the upper suspension hinge. A slewing bearing is connected between the suspension upper part and the suspension lower part. One end of the outer belt conveyor is hinged to the lower suspension hinge. A leveling device hinge is connected between the leveling drive mechanism and the suspension upper part.

2. The automatic leveling belt conveyor rotary suspension device according to claim 1, characterized in that: An angle sensor is provided on the slewing suspension device.

3. The automatic leveling belt conveyor rotary suspension device according to claim 1, characterized in that: The slewing bearing is a sliding turntable or a rolling slewing bearing.

4. The automatic leveling belt conveyor rotary suspension device according to claim 1, characterized in that: The actuator of the leveling drive mechanism is a screw lift, a hydraulic cylinder, an electric push rod or an electric cylinder.

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