Device suitable for automatically rectifying deviation of belt of belt conveyor

Abstract

The utility model provides a device suitable for automatic deviation correction of a belt of a belt conveyor. The device comprises a deviation detection mechanism, a deviation adjusting mechanism, a belt position detection mechanism and a driving mechanism. The offset detection mechanism and the offset adjustment mechanism are both located at the end, where the driven wheel is located, of the belt conveyor. The offset detection mechanism comprises two infrared distance measuring sensors; bearing seats are arranged at the two ends of the driven wheel; the offset adjusting mechanism comprises adjusting lead screws, and each bearing seat is provided with one corresponding adjusting lead screw; the driving mechanism comprises servo motors, and each screw rod is provided with a corresponding servo motor; the belt position detection mechanism is located at the end, where the driving wheel is located, of the belt conveyor. The belt position detection mechanism comprises a proximity switch arranged on the side face of the belt. According to the technical scheme, automatic detection and deviation correction of the belt state of the belt conveyor can be achieved, labor cost is reduced, and normal operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt conveyor technical field, specifically, especially, a kind of device suitable for the automatic deviation correction of belt conveyor belt. BACKGROUND

[0002] In modern industrial production, as an important material conveying equipment, belt conveyor is widely used in mining, port, power, chemical industry and other industries. However, due to long time running and uneven distribution of materials, etc., the belt conveyor often appears deviation phenomenon, and the upper belt deviation is easy to cause material scattering, and the lower belt deviation is easy to cause belt mill stand, and the belt deviation is easy to tear the belt, and the belt conveyor deviation will bring a series of problems to production process. INVENTION CONTENTS

[0003] According to the technical problem of belt deviation of belt conveyor, a device suitable for automatic deviation correction of belt conveyor belt is provided.

[0004] The technical means adopted by the utility model are as follows:

[0005] A kind of device suitable for the automatic deviation correction of belt conveyor belt, the belt conveyor includes driving wheel, passive wheel and belt, the device includes deviation detection mechanism, deviation adjustment mechanism, belt position detection mechanism and drive mechanism;

[0006] The deviation detection mechanism and the deviation adjustment mechanism are located at one end of the passive wheel on the belt conveyor;The deviation detection mechanism includes two infrared distance sensors oppositely arranged on both sides of the belt perpendicular to the advancing direction of the belt, and the infrared distance sensor is used to detect the distance between the belt and the infrared distance sensor in real time;

[0007] The passive wheel is provided with bearing seat at both ends, and the connecting shaft at both ends of the passive wheel is respectively mounted in the bearing seat through bearing;The deviation adjustment mechanism includes adjusting screw, and each bearing seat is provided with a corresponding adjusting screw, the adjusting screw includes screw rod and screw nut, and the bearing seat and the screw nut are fixedly connected;

[0008] The drive mechanism includes servo motor, and each screw rod is provided with a corresponding servo motor, and the output end of the servo motor and the screw rod are fixedly connected, for driving the screw rod to rotate, so that the screw nut drives the bearing seat to move adjusting position, thereby adjusting the position of both ends of the passive wheel to correct the deviation of the belt;

[0009] The belt position detection mechanism is located at one end of the belt conveyor where the driving wheel is located; the belt position detection mechanism comprises a proximity switch arranged on the side of the belt, and the proximity switch is used for detecting whether the belt at one end of the driving wheel returns to the normal position in real time.

[0010] Further, the driving mechanism further comprises a PLC controller, and the infrared distance sensor and the servo motor are electrically connected with the PLC controller respectively.

[0011] The infrared distance sensor sends the detected distance information to the PLC controller in real time, and the PLC controller is used for controlling the operation of the servo motor on both sides of the driven wheel according to the distance information sent by the infrared distance sensor on both sides of the belt, so as to realize the deviation correction of the belt by adjusting the positions of both ends of the driven wheel.

[0012] Further, one proximity switch is arranged on each side of the belt; the proximity switch is electrically connected with the PLC controller.

[0013] When the PLC controller controls the servo motor to correct the deviation of the belt, the PLC controller controls the proximity switch to start and detect whether the belt at one end of the driving wheel returns to the normal position in real time.

[0014] When the proximity switch detects that the distance between the belt and the proximity switch falls within the pre-set detection range, the proximity switch sends a state conversion signal to the PLC controller.

[0015] When the proximity switch detects that the distance between the belt and the proximity switch does not fall within the detection range, the proximity switch sends a state normal signal to the PLC controller; when the PLC controller receives the state normal signals sent by the proximity switches on both sides of the belt at the same time, the PLC controller controls the servo motor to stop working, and the deviation correction of the belt is completed.

[0016] Further, the belt conveyor is further provided with a rack, and the infrared distance sensor and the proximity switch are respectively installed on the side of the belt through support rods arranged on the rack.

[0017] Compared with the prior art, the device has the following advantages:

[0018] The device for automatically correcting the deviation of the belt of the belt conveyor provided by the utility model can realize real-time monitoring of the position of the belt through the deviation detection mechanism and the belt position detection mechanism, and realize automatic adjustment through the deviation adjustment mechanism when the belt deviates, so that the normal operation of the equipment is ensured, and the labor cost for correcting the deviation of the belt is reduced.

[0019] Based on the above reasons, the belt conveyor can be widely popularized in the field of belt conveyor. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 The device structure diagram suitable for the automatic deviation correction of the belt of the belt conveyor.

[0022] Figure 2 The offset adjustment mechanism and the driving mechanism structure diagram.

[0023] Figure 3 The bearing seat, the gantry frame and the square steel structure diagram.

[0024] In the figure: 1, offset detection mechanism; 2, PLC controller; 3, offset adjustment mechanism; 4, belt position detection mechanism; 5, belt; 6, driving wheel; 7, driven wheel; 8, bearing seat; 9, adjusting screw; 10, servo motor; 11, rack; 12, gantry frame; 13, square steel. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] It is to be understood that the terms so far as the language goes are used herein only to describe specific embodiments and not intended to limit the example embodiments according to the present application. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components, and / or combinations thereof.

[0028] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. At the same time, it should be clear that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The techniques, methods and devices known to those skilled in the related art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the example embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component.

[0030] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0032] Example 1

[0033] like Figures 1-2 As shown, this utility model provides a device for automatic belt correction of a belt conveyor. The belt conveyor includes a drive pulley 6, a driven pulley 7, and a belt 5. The belt 5 is wound around the drive pulley 6 and the driven pulley 7. When the belt conveyor is working, the drive pulley 6 is driven to rotate by a motor, which drives the belt 5 to move forward. The driven pulley 7 provides support. The device includes an offset detection mechanism 1, an offset adjustment mechanism 3, a belt position detection mechanism 4, and a drive mechanism.

[0034] The offset detection mechanism 1 and the offset adjustment mechanism 3 are both located at one end of the belt conveyor where the passive pulley 77 is located; the offset detection mechanism 1 includes two infrared ranging sensors that are arranged opposite each other on both sides of the belt 5 along a direction perpendicular to the belt's forward movement, and the infrared ranging sensors are used to detect the distance between the belt 5 and the infrared ranging sensors in real time;

[0035] The passive wheel 7 is provided with bearing seats 8 at both ends, and the connecting shafts at both ends of the passive wheel 7 are respectively installed on the bearing seats 8 through bearings; the offset adjustment mechanism 3 includes an adjusting screw 9, and each bearing seat 8 is provided with a corresponding adjusting screw 9. The adjusting screw 9 includes a screw rod and a screw nut, and the bearing seat 8 is fixedly connected to the screw nut.

[0036] The driving mechanism comprises a servo motor 10, each screw rod is provided with a corresponding servo motor 10, the output end of the servo motor 10 is fixedly connected with the screw rod, for driving the screw rod to rotate, so that the bearing seat 8 is driven by the screw nut to move to adjust the position, thereby adjusting the position of the two ends of the passive wheel 7 to correct the deviation of the belt 5.

[0037] The belt position detection mechanism 4 is located at one end of the belt machine where the driving wheel 6 is located; the belt position detection mechanism 4 comprises a proximity switch arranged on the side of the belt 5, and the proximity switch is used to detect whether the belt 5 at one end of the driving wheel 6 returns to the normal position in real time.

[0038] Further, the driving mechanism further comprises a PLC controller 3, and the infrared distance sensor and the servo motor are electrically connected with the PLC controller 3 respectively.

[0039] The infrared distance sensor sends the detected distance information to the PLC controller 3 in real time, and the PLC controller 3 is used to control the operation of the servo motor 10 at the two sides of the passive wheel according to the distance information sent by the infrared distance sensor at the two sides of the belt, so as to realize the deviation correction of the belt 5 by adjusting the positions of the two ends of the passive wheel 7.

[0040] Specifically, the PLC controller can compare the distance between the belt and the infrared distance sensor detected by the infrared distance sensor in real time with the pre-set standard distance range, and if it is out of the standard distance range, it means that the belt has deviated;

[0041] When the infrared distance sensor on one side of the belt detects that the distance is less than the set standard distance range, it means that the belt is close to the infrared distance sensor, and at the same time, the infrared distance sensor on the other side detects that the distance is greater than the set standard distance range, which means that the belt is away from the infrared distance sensor on the other side. In this case, the PLC controller can control the servo motor on the same side as the infrared distance sensor to drive the corresponding bearing seat to move backward, and control the servo motor on the other side to drive the corresponding bearing seat to move forward (here, "forward" means consistent with the forward direction of the belt, and "backward" means opposite to the forward direction of the belt), so as to adjust the positions of the two ends of the passive wheel, and further realize the deviation correction of the belt.

[0042] Further, one proximity switch is arranged on each side of the belt 5; the proximity switch is electrically connected with the PLC controller 3.

[0043] When the PLC controller 2 controls to start the servo motor to correct the deviation of the belt 5, the PLC controller 2 controls the proximity switch to start, and detects whether the belt 5 at one end of the driving wheel 6 restores to the normal position in real time;

[0044] When the proximity switch detects that the distance between the belt 5 and the proximity switch falls in the pre-set detection range, it indicates that the belt 5 deviates, and the proximity switch sends a state conversion signal to the PLC controller 2;

[0045] When the proximity switch detects that the distance between the belt 5 and the proximity switch does not fall in the detection range, the proximity switch sends a state normal signal to the PLC controller 2; when the PLC controller 2 receives the state normal signal sent by the proximity switch on both sides of the belt 5 at the same time, it indicates that the belt 5 has restored to the normal position, and the PLC controller 2 controls the servo motor 10 to stop working, thereby completing the deviation correction of the belt 5.

[0046] Further, the belt conveyor is further provided with a rack 11, and the infrared distance sensor and the proximity switch are respectively installed on the side of the belt 5 through the support rods arranged on the rack 11.

[0047] Further, as shown in the drawings, Figure 3 The bearing seat 8 is installed on the square steel 13 through a gantry-shaped frame 12 fixedly installed on the bottom, the gantry-shaped frame 12 is sleeved outside the square steel 13, and when the deviation of the belt 5 is corrected, the servo motor 10 drives the adjusting lead screw to drive the bearing seat 8 to move forward and backward along the square steel 13.

[0048] The device can monitor the distance between the belt and the infrared distance sensor in real time when the belt conveyor works, the PLC controller can judge whether the belt deviates according to the distance information detected by the infrared distance sensor, if the belt deviates, the working of the servo motor can be controlled to adjust the position of the driven wheel, the deviation of the belt is corrected, and after the deviation correction work starts, whether the belt restores to the normal position can be detected through the proximity switch arranged at one end of the driving wheel.

[0049] The device for automatically correcting deviation of the belt of the belt conveyor has the advantages that the belt position is monitored in real time through the setting of the deviation detection mechanism and the belt position detection mechanism, the infrared distance measuring sensor and the proximity switch are selected to feed back signals without contact, the state of the belt is monitored, and when deviation of the belt is found, the deviation adjusting mechanism is controlled by the PLC controller to realize automatic adjustment, the normal operation of the equipment is ensured, and the labor cost for correcting deviation of the belt is reduced.

[0050] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device suitable for automatic deviation correction of a belt of a belt conveyor, the belt conveyor comprising a driving pulley, a driven pulley and a belt, characterized in that, The offset detection mechanism, the offset adjustment mechanism, the belt position detection mechanism and the driving mechanism are included. The offset detection mechanism and the offset adjustment mechanism are located at one end of the belt machine where the passive wheel is located. The passive wheel is provided with bearing seats at both ends, and the connecting shafts at both ends of the passive wheel are respectively installed in the bearing seats through bearings. The offset adjustment mechanism includes adjusting lead screws, and each bearing seat is provided with a corresponding adjusting lead screw. The driving mechanism includes servo motors, and each screw rod is provided with a corresponding servo motor.

2. The device suitable for automatic deviation correction of the belt of the belt conveyor according to claim 1, characterized in that, The servo motor is fixedly connected with the screw rod at the output end, used to drive the screw rod to rotate, so that the bearing seat is moved to adjust the position, thereby adjusting the position of both ends of the passive wheel to correct the deviation of the belt. The belt position detection mechanism is located at one end of the belt machine where the driving wheel is located.

3. The device for automatic deviation correction of the belt of the belt conveyor according to claim 1, characterized in that, The driving mechanism further includes a PLC controller, and the infrared distance sensor and the servo motor are respectively electrically connected with the PLC controller. The infrared distance sensor sends the detected distance information to the PLC controller in real time. The PLC controller is used to control the work of the servo motors at both ends of the passive wheel according to the distance information sent by the infrared distance sensors at both sides of the belt, and the deviation of the belt is corrected by adjusting the positions of both ends of the passive wheel. The belt is provided with one proximity switch at both sides. When the PLC controller controls the servo motor to correct the deviation of the belt, the PLC controller controls the proximity switch to start and detect whether the belt at one end of the driving wheel returns to the normal position in real time.

4. The device suitable for automatic deviation correction of the belt of the belt conveyor according to claim 1, characterized in that, When the proximity switch detects that the distance between the belt and the proximity switch falls within the pre-set detection range, the proximity switch sends a state transition signal to the PLC controller. When the proximity switch detects that the distance between the belt and the proximity switch does not fall within the detection range, the proximity switch sends a state normal signal to the PLC controller. When the PLC controller receives the state normal signals sent by the proximity switches at both sides of the belt at the same time, the PLC controller controls the servo motor to stop working, and the correction of the belt is completed. The belt machine is further provided with a rack, and the infrared distance sensor and the proximity switch are respectively installed on the side of the belt through support rods provided on the rack.

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