阅读说明：本技术 一种输送带双向自动纠偏方法 (Bidirectional automatic deviation rectifying method for conveying belt ) 是由 杨政荣 于 2020-06-08 设计创作，主要内容包括：本发明涉及一种输送带双向自动纠偏方法,属于输送带纠偏技术领域,解决了现有技术中的输送带纠偏装置纠偏效果差以及适应性差的问题。本发明通过在靠近尾轮的位置,在下输送带上方分别给左右两侧施加向下的侧推力,使输送带左右双向受力,侧推力使输送带形变,产生向左和向右的物理偏移力形成双向自动纠偏力,将输送带紧紧的锁定在中间位置,使输送带在跑偏力小于自动纠偏力时不会跑偏；尤其应用到尾轮下方时,因输送带没有载料,很小的侧推力即可让输送带形变与尾轮结合,在旋转中产生很大的自动纠偏力,其杠杆效应较常规纠偏方法更高效节能。(The invention relates to a bidirectional automatic deviation rectifying method for a conveying belt, belongs to the technical field of conveying belt deviation rectifying, and solves the problems of poor deviation rectifying effect and poor adaptability of a conveying belt deviation rectifying device in the prior art. According to the invention, downward side thrust is respectively applied to the left side and the right side above the lower conveying belt at a position close to the tail wheel, so that the conveying belt is stressed in a left-right two-way mode, the conveying belt is deformed by the side thrust, and a left-right physical offset force is generated to form a two-way automatic deviation rectifying force, so that the conveying belt is tightly locked at a middle position, and the conveying belt cannot deviate when the deviation rectifying force is smaller than the automatic deviation rectifying force; when the method is particularly applied to the lower part of the tail wheel, the conveyer belt can be deformed and combined with the tail wheel by a small side thrust force because the conveyer belt does not carry materials, a large automatic deviation rectifying force is generated in rotation, and the lever effect is more efficient and energy-saving than that of the conventional deviation rectifying method.)

1. A bidirectional automatic deviation rectifying method for a conveyor belt is characterized by comprising the following steps:

the method is characterized in that downward side thrust is respectively applied to the left side and the right side above a lower conveying belt at a position close to a tail wheel, so that the conveying belt is stressed in a left-right direction, the side thrust enables the conveying belt to deform and the tail wheel to lose a 90-degree balance angle, and a left-right physical offset force is generated in rotation to obtain a bidirectional automatic offset force method;

the method is characterized in that upward lateral thrust is respectively applied to the left side and the right side below an upper conveying belt at a position close to a head wheel, so that the conveying belt is stressed in a left-right bidirectional mode, the lateral thrust enables the conveying belt to deform and the head wheel to lose a 90-degree balance angle, and a left physical offset force and a right physical offset force are generated in rotation to obtain a bidirectional automatic deviation rectifying method;

when the side thrust is applied below the tail wheel, the conveyer belt can be deformed and combined with the tail wheel by a small side thrust because the conveyer belt does not carry materials, and a large automatic deviation rectifying force is generated in rotation, and the deviation rectifying method can generate a lever effect;

downward side thrust is respectively applied to the left side and the right side above the lower conveying belt close to the tail wheel, so that the lower conveying belt is stressed in a left-right direction; or upward side thrust is respectively applied to the left side and the right side below the upper conveying belt close to the head wheel, so that the upper conveying belt is stressed in a left-right direction; the lateral thrust enables the conveying belt to deform, and the deviation rectifying forces towards left and right in the rotation of the conveying belt can balance the physical deviation rectifying force, so that bidirectional automatic deviation rectifying is realized;

the bidirectional automatic deviation rectification of the conveying belt (8) is realized by the deviation rectification forces respectively exerted on the two sides of the conveying belt (8) by the two carrier rollers on the two sides;

the deviation rectifying force is adjustable, and the proper inclination angle is found by calculating the weight of the load borne by the conveyer belt (8) and the blanking angle of the load under the field working condition, so that the deviation rectifying force borne by the conveyer belt (8) is smaller than the deviation rectifying force.

2. The bidirectional automatic deviation rectifying method for the conveyer belt according to claim 1, wherein; the lateral pressure of the conveying belt (8) by the left first carrier roller (2) is F, and the lateral pressure by the right second carrier roller (3) is F';

in the horizontal direction, the right deviation rectifying force F2 and the left deviation rectifying force F2' are balanced with the deviation rectifying force, and the bidirectional deviation rectifying of the conveying belt is realized;

the deviation force of the conveying belt is 0 in normal operation, the deviation forces on the two sides are equal to the reverse thrust forces on the two sides of the conveying belt, and the deviation cannot occur;

in the horizontal direction, when the conveying belt is subjected to a left deviation force, the conveying belt has a center left-moving trend, the left deviation force is balanced with a left deviation rectifying force and a right deviation rectifying force, when the conveying belt is subjected to a right deviation force, the conveying belt has a center right-moving trend, and the right deviation rectifying force, the left deviation rectifying force and the deviation rectifying force f are balanced; i.e. always keeping F2+ F2' + F equal to 0. The deviation rectifying force and the deviation rectifying force are balanced with each other, so that the conveying belt cannot deviate;

in the vertical direction, the downward pressure exerted by the first carrier roller (2) and the second carrier roller (3) on the left side and the right side of the conveying belt (8) is F1 and F1 ', namely the two component forces F1 and F1 ' generated by the F and F ' in the vertical direction make the tension of the conveying belt (8) larger;

when the conveyor belt (8) is subjected to a rightward offset force F ≦ F2': the deviation tends to be generated rightwards, and at the moment, the deviation rectifying force F2' which is applied to the conveying belt (8) by the second carrier roller (3) on the right side to the left can counteract the deviation rectifying force; the force applied to the conveying belt (8) in the horizontal direction is still balanced, and the conveying belt (8) is located in the middle position and cannot be deviated;

when the conveying belt (8) is subjected to a leftward offset force F ≦ F2: the left-side second carrier roller (3) has a tendency of deviation towards the left, and at the moment, a right deviation rectifying force F2 applied to the conveying belt (8) by the left-side second carrier roller is used for counteracting the deviation rectifying force; the force applied to the conveying belt (8) in the horizontal direction is still balanced, and the conveying belt (8) is located in the middle position and cannot deviate.

3. A method for bi-directional automatic correction of conveyor belt deviation according to claim 2, characterized in that when the conveyor belt (8) is subjected to a leftward deviation force F > F2: the conveying belt (8) is easy to deviate, at the moment, the first adjusting rod (4) is adjusted downwards to enable the first carrier roller (2) to rotate anticlockwise, an included angle theta between lateral pressure F applied by the first carrier roller (2) and horizontal component force F2 is reduced, horizontal rightward deviation rectifying force F2 is increased, and the conveying belt (8) can be prevented from deviating until F2 is larger than F; similarly, when the conveyor belt (8) is subjected to a rightward offset force F > F2': the conveying belt (8) is easy to deviate, at the moment, the second adjusting rod (5) is adjusted downwards to enable the second carrier roller (3) to rotate anticlockwise, an included angle theta between lateral pressure F 'applied by the second carrier roller (3) and horizontal component force F2' is reduced, horizontal rightward deviation rectifying force F2 'is increased, and the conveying belt (8) can be prevented from deviating until F2' is larger than F.

4. An automatic deviation rectifying device for a conveyor belt, which is suitable for the bidirectional automatic deviation rectifying method for the conveyor belt according to any one of claims 1 to 3, and is characterized by comprising the following steps: the first carrier roller (2), the second carrier roller (3) and the adjusting rod; the first carrier roller (2) and the second carrier roller (3) are respectively arranged on two sides of the conveying belt (8) and used for providing lateral pressure for preventing the conveying belt (8) from deviating; the first carrier roller (2) and the second carrier roller (3) can deflect under the driving of the adjusting rod.

Technical Field

The invention relates to the technical field of deviation correction of conveying belts, in particular to a bidirectional automatic deviation correction method for a conveying belt.

Background

The conveyer belt can be used for continuous, high-efficiency and large-inclination-angle transportation, and the conveyer belt is simple to use, easy to maintain and low in cost, so that the conveyer belt is widely used in various industrial fields; but the deviation problem that meets in the use seriously influences the transmission efficiency and the life of conveyer belt. Currently, commonly used deviation correcting devices can be roughly classified into four types: mechanical, hydraulic, pneumatic, and electrohydraulic combined; among the four types of devices, the existing mechanical deviation correcting device has poor working stability and poor deviation correcting effect during heavy load; the hydraulic deviation correcting device has high cost, large volume, more parts and high failure rate; the pneumatic type deviation correcting device is complex to install and debug, and a cylinder is used, so that the operation and maintenance difficulty is high; the electro-hydraulic combined type deviation correcting device is complex in structure, the sensor is easy to damage or generate large errors in severe environment, the investment is large, the maintenance frequency is high, and the electro-hydraulic combined type deviation correcting device is not suitable for being used by enterprises in large quantities.

Therefore, it is necessary to provide a deviation rectifying method with high deviation rectifying sensitivity, good effect and wide applicability, and a device with simple manufacturing structure, small volume and simple maintenance, so as to solve the problem of deviation of the conveying belt in industrial production.

Disclosure of Invention

In view of the above analysis, the present invention aims to provide a simple method for automatically correcting the deviation of a conveyor belt by using a mechanical structure without electric control, so as to solve the problems of complex structure, poor deviation correction effect and poor adaptability of the existing automatic deviation correction technology for conveyor belts.

A bidirectional automatic deviation rectifying method for a conveyer belt is characterized in that two inclined carrier rollers are arranged at positions close to a head wheel or a tail wheel, and one side pressure which is inclined downwards or upwards is supplied to the conveyer belt; the component force of the lateral pressure in the horizontal direction is the deviation rectifying force applied to the conveying belt;

the invention protrudes the installation position of the deviation correcting device, namely the deviation correcting device is installed below the upper leather of the head wheel of the conveying belt to apply upward supporting force or is installed above the lower conveying belt of the tail wheel to apply downward force to the conveying belt; the deviation correcting device is arranged above the lower conveying belt of the tail wheel of the conveying belt to apply downward lateral pressure to the conveying belt, and the deviation correcting effect is best.

The two-way automatic deviation rectification of the conveying belt is realized by the deviation rectification forces respectively exerted on the two sides of the conveying belt by the two carrier rollers on the two sides;

the deviation rectifying force is adjustable, and a proper inclination angle is found through the difference of the weight of the load borne by the conveyer belt and the blanking angle of the load on the site working condition, so that the deviation rectifying force borne by the conveyer belt is ensured to be within the deviation rectifying force range, namely the deviation rectifying force is smaller than the deviation rectifying force, and the conveyer belt is suitable for more application environments;

adjusting the inclination angle of the carrier roller by moving the first adjusting rod and/or the second adjusting rod up and down; the first adjusting rod and/or the second adjusting rod drive the first carrier roller and/or the second carrier roller to deflect clockwise or anticlockwise relative to the steel frame;

when the first adjusting rod and/or the second adjusting rod move downwards, the deviation rectifying force applied to the conveying belt by the first carrier roller and/or the second carrier roller is increased; the conveyer belt can be rectified when the rectifying force is larger than the deviation force.

The lateral pressure of the conveying belt on the left first carrier roller 2 is F, and the lateral pressure of the conveying belt on the right second carrier roller is F ', and the two carrier rollers are symmetrically distributed, so that F is F';

when the deviation force is zero, in the horizontal direction, the horizontal component force F2 of the lateral pressure is F2' which is Fcos theta, and the force of the conveying belt is balanced in the horizontal direction; wherein θ is an included angle between the lateral pressure force F and the horizontal component force F2;

in the vertical direction, the downward pressure exerted by the first idler and the second idler on the left side and the right side of the conveyor belt is F1 and F1 ', namely the two component forces F1 and F1 ' generated by the F and the F ' in the vertical direction make the tension of the conveyor belt larger;

when the conveying belt is subjected to rightward offset force F, the conveying belt tends to deflect rightward, the rightward offset force applied to the conveying belt by the first carrier roller on the left side is reduced to F2-F, the rightward force applied to the conveying belt by the first carrier roller on the left side in the horizontal direction is F2-F and the deflection force F, the leftward force is F2', and the combined external force on the left side and the right side of the conveying belt is 0, so that the conveying belt cannot deflect;

when the deviation force F received is F2, the deviation correcting force applied to the conveying belt by the first carrier roller on the left side is F2-F which is 0, the resultant force applied to the conveying belt on the right side is 0+ F, the resultant force applied to the conveying belt on the left side is F1, the left side and the right side are balanced, the conveying belt cannot deviate, when the deviation correcting force applied to the right side is continuously increased, the deviation correcting force provided by the right side of the conveying belt cannot counteract the deviation correcting force, and the deviation of the conveying belt can be finally caused.

The analysis is the same as the above when the conveyer belt is subjected to the left deviation force.

An automatic deviation correcting device for a conveying belt is suitable for the bidirectional automatic deviation correcting method for the conveying belt, and is characterized by comprising the following steps: the first carrier roller, the second carrier roller and the adjusting rod are arranged on the first carrier roller; the first carrier roller and the second carrier roller are respectively arranged on two sides of the conveying belt and used for providing lateral pressure for preventing the conveying belt from deviating; the first carrier roller and the second carrier roller can deflect under the driving of the adjusting rod.

Further, the device also comprises a steel frame; the steel frame is arranged in parallel to the conveying belt; the adjusting rod comprises a first adjusting rod and a second adjusting rod; the first adjusting rod and the second adjusting rod are both installed on the steel frame.

Furthermore, the first adjusting rod and the second adjusting rod are perpendicular to the steel frame and can move relative to the steel frame.

Further, first regulation pole and second are the threaded rod, and all pass through threaded connection with the steelframe.

Furthermore, two ends of the first carrier roller are respectively and rotatably connected with the steel frame and the first adjusting rod; and two ends of the second carrier roller are respectively rotatably connected with the steel frame and the second adjusting rod.

Furthermore, one end of the first carrier roller is connected with the lower end of the first adjusting rod through a first universal joint; one end of the second carrier roller is connected with the lower end of the second adjusting rod through a second universal joint;

the other end of the first carrier roller is hinged with the steel frame; the other end of the second carrier roller is hinged with the steel frame. Compared with the prior art, the technical scheme provided by the invention has at least one of the following beneficial effects:

lateral pressure can be exerted from left and right lateral conveying belts through setting up the bearing roller in the conveyer belt both sides, lateral pressure's horizontal component provides the rectifying force that stops the conveyer belt to both sides off tracking, lateral pressure still gives the conveyer belt vertical decurrent power at the component of vertical direction simultaneously, vertical decurrent power plays the effect of pressing down the conveyer belt in accommodation process, the lateral pressure of first bearing roller of increase and second bearing roller, can make the rate of tension on the left and right sides of conveyer belt increase, prevent the conveyer belt to both sides off tracking, realize rectifying to the two-way of conveyer belt.

In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. And in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings as well as the appended claims.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.

FIG. 1 is a schematic diagram of the structure of the automatic deviation rectifying device for the conveyer belt of the present invention;

FIG. 2 is a force analysis diagram of the automatic deviation rectifying device for the conveyer belt of the present invention;

fig. 3 is a schematic diagram of the automatic deviation correcting device of the conveyor belt with the height adjustable carrier roller.

Reference numerals:

1-a transmission wheel; 2-a first carrier roller; 3-a second carrier roller; 4-a first adjusting lever; 5-a second adjusting rod; 6-first universal joint; 7-a second gimbal; 8-a conveyor belt; 9-steel frame; 10-a first nut; 11-a second nut; 12-a third nut; 13-a fourth nut; 14-a first loop bar; 15-a first idler cradle; 16-a second loop bar; 17-second idler cradle.

Detailed Description

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.