CN211003114U

CN211003114U - Carrier roller aligning support for preventing conveying belt from deviating

Info

Publication number: CN211003114U
Application number: CN201921752419.7U
Authority: CN
Inventors: 李敦全; 骆建明; 段小卫; 巩素龙; 胡国栋; 唐玉梁; 左红燕; 顾洪敬; 张�林; 马小千
Original assignee: Sinohydro Bureau 5 Co Ltd
Current assignee: Sinohydro Bureau 5 Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-07-14
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a carrier roller aligning bracket for preventing a conveying belt from deviating, which comprises a T-shaped fixed bottom beam consisting of a first cross beam and a first longitudinal beam, wherein two ends of the first cross beam are fixed on a conveying belt frame; the left and right ends of the upper surface of the second cross beam are provided with a left upright post and a right upright post for mounting a support roller, and the left and right ends of the upper surface of the third cross beam are provided with a left vertical roller and a right vertical roller; the upper end and the lower end of the rotating shaft are respectively connected with the middle parts of the first longitudinal beam and the second longitudinal beam; the left end and the right end of the upper surface of the first cross beam and the lower surface of the second cross beam are respectively provided with at least one arc-shaped groove which takes the rotating shaft as the circle center, and at least one rolling bearing piece is arranged in each arc-shaped groove; the utility model discloses have higher regulation sensitivity, change and make the support kun be in and adjust balanced position, it is littleer to the wear of conveyer belt.

Description

Carrier roller aligning support for preventing conveying belt from deviating

Technical Field

The utility model relates to a material transfer equipment matching device suitable for conveyer belt formula especially relates to a bearing roller aligning support that prevents the conveyer belt off tracking.

Background

The conveyer belt has the characteristics of high efficiency and strong conveying capacity, and is widely applied to conveying production materials. The deviation phenomenon often occurs in the use of the conveying belt, the deviation phenomenon is distinguished from the deviation occurrence position, the deviation of the conveying belt is divided into three types of deviation caused by a driving roller, deviation on a reversing roller and deviation on a carrier roller, the number of the driving roller and the reversing roller is small, and the deviation phenomenon is generally adjusted by manpower or a servo mechanism when the deviation occurs; the supporting rollers are more in quantity, the manual adjustment workload is large, and too many servo adjusting devices are not beneficial to maintenance. The existing carrier roller adjustment mostly adopts a self-aligning method which mainly comprises two modes of a reducing roller self-aligning mode and an aligning bracket, wherein the self-aligning of the reducing roller is characterized by strong bearing capacity, but the self-aligning of the reducing roller has great abrasion to a conveying belt and the roller in the operation process because the radiuses of all the positions of the roller are not consistent; the aligning support is used for adjusting the carrier roller by supporting the carrier roller through a central rotating longitudinal shaft, the rotating shaft and the carrier roller are in a T shape, and the conveying belt which is deviated is used for driving the aligning vertical rollers at two sides to enable the carrier roller to rotate and adjust along the center. The supporting roller has the advantages that when the deviation degree of the conveying belt does not reach the vertical rollers on the two sides, the supporting roller stays at the last angle when triggering and adjusting, the automatic adjustment is not carried out, the adjustment sensitivity is low, the position is not always perpendicular to the direction of the conveying belt, certain abrasion can be generated on the conveying belt, the supporting roller supported by a point in the center is subjected to the torque action when the supporting point is subjected to the force on the single side, the bearing capacity of the single side is weaker, the phenomenon of the single side stress is frequently caused in the maintenance process of the conveying belt, and the deformation or the damage of the bearing in the longitudinal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that when the off tracking that the conveyer belt produced on both ends drive roller and switching-over roller, make the conveyer belt keep near conveyer belt frame central line in the bearing roller section, reduce the wearing and tearing of conveyer belt on the bearing roller and make the bearing roller have higher unbalance bearing capacity.

In order to solve the technical problem, the utility model discloses a technical scheme is: the carrier roller aligning support comprises a T-shaped fixed bottom beam formed by a first cross beam and a first longitudinal beam, wherein two ends of the first cross beam are fixed on a conveyor belt frame; the carrier roller mounting device is characterized by further comprising an I-shaped rotating beam consisting of a second cross beam, a second longitudinal beam and a third cross beam, wherein a left upright post and a right upright post for mounting carrier rollers are arranged at the left end and the right end of the upper surface of the second cross beam, and a left vertical roller and a right vertical roller are arranged at the left end and the right end of the upper surface of the third cross beam; the vertical rotating shaft is arranged, and the upper end and the lower end of the rotating shaft are respectively connected to the first longitudinal beam and the second longitudinal beam; the left end and the right end of the upper surface of the first cross beam and the lower surface of the second cross beam are respectively provided with at least one arc-shaped groove which takes the rotating shaft as the circle center, and at least one bearing piece capable of rolling is arranged in each arc-shaped groove.

In particular, the rotation axis is located on the centre line of the idler.

In particular, the arc-shaped groove is closed at two ends.

Particularly, the upper end and the lower end of the rotating shaft are connected with the first longitudinal beam and the second longitudinal beam through bearings.

Particularly, the bearing part is a steel ball or a variable diameter steel column roller, and an extension line of the axis of the variable diameter steel column roller points to the rotating shaft.

The utility model has the advantages that: compare with traditional bearing roller aligning support, have higher regulation sensitivity, change and make the bearing roller be in and adjust balanced position, it is littleer to the wear of conveyer belt, and install simple structure, the volume production of being convenient for has fine market prospect.

Drawings

Fig. 1 is a perspective view of the structure of the device of the present invention.

Fig. 2 is a top view of the structure of the device of the present invention.

Fig. 3 is a left side view of the structure of the device of the present invention.

Fig. 4 is a rear view of the structure of the device of the present invention.

Fig. 5 is a schematic diagram of a left-side deflection state of the conveyor belt.

Fig. 6 is a schematic diagram of a rightward deviation state of the conveyor belt.

Wherein, the bottom beam-1 is fixed; a first cross member-11; a first stringer-12; a rotating beam-2; a second cross member-21; a second stringer-22; a third cross member-23; a left upright post-3; a right column-5; a rotating shaft-6; a right vertical roll-7; a left vertical roll-8; an arc-shaped groove-9; a bearing part-10; a conveyor-111; a first extrusion force-13; a second compressive force-132; a first reaction force-12; second reaction force-122.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

For convenience of understanding, the forward direction of the conveyor belt is defined as the forward direction, and the left and right sides mentioned below are determined with reference to the forward direction of the conveyor belt as the facing direction. As shown in fig. 1, 2, 3 and 4, a carrier roller aligning bracket for preventing a conveying belt from deviating comprises a T-shaped fixed bottom beam 1 consisting of a first cross beam 11 and a first longitudinal beam 12, wherein two ends of the first cross beam 11 are fixed on a conveying belt frame, and the whole aligning bracket is positioned below the conveying belt 111; the carrier roller mounting structure further comprises an I-shaped rotating beam 2 consisting of a second cross beam 21, a second longitudinal beam 22 and a third cross beam 23, wherein a left upright post 3 and a right upright post 5 for mounting a carrier roller 4 are arranged at the left end and the right end of the upper surface of the second cross beam 21, and a left vertical roller 8 and a right vertical roller 7 are arranged at the left end and the right end of the upper surface of the third cross beam 23; the lower surface of the middle part of the second longitudinal beam 22 on the upper surface level of the middle part of the first longitudinal beam 12 is provided with a rotating shaft hole; the vertical rotating shaft 6 is further included, the upper end and the lower end of the rotating shaft 6 are respectively connected with the middle parts of the first longitudinal beam 12 and the second longitudinal beam 22, namely the rotating shaft 6 is inserted into a rotating shaft hole and then connected with the first longitudinal beam 12 and the second longitudinal beam 22; the left end and the right end of the upper surface of the first cross beam 11 and the lower surface of the second cross beam 21 are respectively provided with at least one arc-shaped groove 9 which takes the rotating shaft 6 as a circle center, at least one bearing part 10 which can roll is arranged in the arc-shaped groove 9, and the arc-shaped grooves 9 and the bearing parts 10 are positioned in a gap between the fixed bottom beam 1 and the rotating beam 2; when the rotating beam 2 is positioned at the middle position, the fixed bottom beam 1 is opposite to the arc-shaped groove 9; generally, the diameter of the steel ball is selected to be slightly larger than the depth of the arc-shaped groove 9 by the bearing part 10, so that a gap is formed between the rotating beam 2 and the fixed bottom beam 1 without friction; because the fixed bottom beam 1 and the rotating beam 2 are connected through the rotating shaft 6, the rotating beam 2 can only rotate along the fixed bottom beam 1 and cannot axially displace or tilt.

The rotating shaft 6 is positioned on the central line of the carrier roller 4, so that the force applied to the self-aligning bracket is bilaterally symmetrical.

The two ends of the arc-shaped groove 9 are closed, so that the bearing part 10 is prevented from falling off; meanwhile, the rotating shaft 6 enables the rotating beam 2 to keep a consistent gap with the bearing part 10 along the fixed bottom beam 1, and the rotating shaft 6 and the bearing part 10 jointly support the rotating beam 2 on the fixed bottom beam 1; meanwhile, as the two ends of the arc-shaped groove 9 are closed, the bearing part 10 can not move relatively when rolling to the end part of the arc-shaped groove 9, so as to achieve the purpose of limiting the rotating angle of the rotating beam 2.

The central line of the carrier roller 4 is positioned above the bearing part 10, most of the main load of the conveying belt 111 and the carrier roller 4 is borne by the bearing parts 10 at the two sides below, and the carrier roller can bear larger unbalanced load under the combined action of the left bearing part 10 and the right bearing part 10; when the belt 111 is heavily loaded, the load-bearing capacity can be further increased by using a plurality of concentric arc-shaped grooves 9 and load-bearing members 10 at both ends.

The upper end and the lower end of the rotating shaft 6 are connected with the first longitudinal beam 12 and the second longitudinal beam 22 through bearings.

The bearing part is a steel ball or a reducing steel column roller, and an extension line of the axis of the reducing steel column roller points to the rotating shaft 6, so that the reducing roller can roll in an arc shape along the arc-shaped groove 9 to keep the reducing roller concentric with the rotating shaft 6, and the rotating shaft 6 bears a smaller load, thereby being beneficial to prolonging the service life of bearings at two ends of the rotating shaft 6.

As illustrated in fig. 2. Normally, the conveying belt 111 is located in the middle of the carrier roller 4, and in the process that the conveying belt 111 runs forwards, balanced friction force is generated on two ends of the carrier roller 4, the friction force generates a forward traction force on the carrier roller 4, the traction force enables the direction of the central line of the rotating beam 2 to be consistent with the advancing direction of the conveying belt 111, the carrier roller 4 is perpendicular to the conveying belt 111 and does not generate an acting force for enabling the conveying belt 111 to move transversely, the wear of the carrier roller 4 and the conveying belt 111 is small, and the conveying belt 111 keeps running in the middle of the carrier roller 4; if the carrier roller is deflected under the influence of the traction directions of the driving roller and the reversing roller, the carrier roller 4 does not generate a friction force for the transverse movement of the conveying belt 111; if the conveying belt 111 deviates from the central line and the distance is within an acceptable small range, the deviation of the conveying belt 111 does not need to be corrected, the supporting rollers 4 are kept perpendicular to the conveying belt 111, so that the transverse friction is reduced, the service life of the conveying belt 111 is prolonged, the conveying belt 111 is not in contact with the right vertical roller 7 and the left vertical roller 8, the supporting rollers 4 rotate along the rotating shaft 6 along the traction direction of the friction force of the conveying belt 111, the supporting rollers are perpendicular to the central line of the conveying belt 111, the conveying belt 111 does not generate the friction force of transverse movement with the conveying belt 111, and the abrasion of the conveying belt 111.

If the traction direction causes the conveying belt 111 to deviate beyond the acceptable allowable range, as shown in fig. 5, when the conveying belt 111 deviates to the left side of the central line a lot, the conveying belt 111 contacts with the left vertical roller 8, the left vertical roller 8 rotates along with the conveying belt 111, and at the same time, the deviated conveying belt 111 generates a lateral extrusion force F1, i.e., the first extrusion force 13 in fig. 5, the force F1 points to the direction of the left vertical roller 8 and generates a leftward thrust on the left vertical roller 8, so as to push the left vertical roller 8 to move to the left side and rotate the rotating beam 2 and the idler 4 around the rotating shaft 6 in a clockwise direction, so that the left side of the idler 4 moves forward and backward, and the running conveying belt 111 moves to the deviated right end of the idler 4 and moves. As shown in fig. 6, when the conveyor belt 111 is deviated to the right side of the center line more, the conveyor belt 111 contacts with the right vertical roller 7, the right vertical roller 7 rotates along with the conveyor belt 111, and a lateral extrusion force F2, i.e., the second extrusion force 132 in fig. 6, is generated by the deviated conveyor belt 111, F2 points in the direction of the right vertical roller 7 and generates a rightward thrust to the right vertical roller 7, and a force F2 pushes the right vertical roller 7 to move to the right side, so that the rotating beam 2 and the idler 4 rotate counterclockwise around the rotating shaft 6, the right side of the idler 4 moves forward and the left side moves backward, and the running conveyor belt 111 moves to the deviated left end of the idler 4 and moves to the center line of the conveyor.

If the installation error of the carrier roller 4, the abrasion of the carrier roller 4, the deformation of the conveying belt 111 or the inconsistent circumferences of the two sides of the conveying belt 111 occur, the left end and the right end of the conveying belt 111 have angle deviation in the horizontal direction, so that the deviation occurs in the running process, and the reaction force is generated on the carrier roller 4. As shown in fig. 5, when the conveyor belt 111 has a left deviation equalizing tendency, due to a certain angle inclination, F11, i.e. the first reaction force 12 in fig. 5, is formed on the idler 4, and the first reaction force 12 is directed to the right side of the conveyor belt 111, so that the idler 4 and the rotating beam 2 rotate clockwise around the rotating shaft 6, the left side of the idler 4 moves forward and backward, the running conveyor belt 111 moves to the rear right end of the idler 4 and moves to the center line of the conveyor belt frame, and if the conveyor belt 111 moves more to the left, the left vertical extrusion roller 8 moves to the left, the clockwise rotation range of the idler 4 and the rotating beam 2 is further increased, and the speed for adjusting the conveyor 11 to the right is increased. Similarly, as shown in fig. 6, when the conveyor belt 111 tends to deviate to the right, F21 is formed on the idler 4, i.e. the second reaction force 122 in fig. 6 is directed to the left side of the conveyor belt 111, so that the idler 4 and the rotating beam 2 rotate counterclockwise around the rotating shaft 6, the right side of the idler 4 moves forward and backward, the running conveyor belt 111 moves to the deviated left end of the idler 4 and moves to the center line of the conveyor belt frame, if the conveyor belt 111 moves more to the right, the right vertical roller 7 is also extruded to move to the right, the counterclockwise rotation amplitude of the idler 4 and the rotating beam 2 is further increased, and the speed for adjusting the conveyor belt 11 to the left is increased so that the conveyor belt moves to the center line more quickly.

In the repeated adjustment process of bearing roller self-aligning support to bearing roller 4 and conveyer belt 111, adjust by oneself in conveyer belt 111 friction traction force, the equilibrium position department of adjustment force, the specific value of the distance of increase rotation axis 6 to walking beam 2 and walking beam 2 width enables the more stable stop of bearing roller in equilibrium position, and the specific value of the distance of reduction rotation axis 6 to walking beam 2 and walking beam 2 width can improve governing speed, and can obtain bigger accommodation in limited conveyer belt frame space.

The bearing of the rotating shaft 6 can be arranged on the lower surface of the rotating beam 2 or the upper surface of the fixed bottom beam 1, and when the requirement is not high, the rotating shaft without the bearing can be directly connected with the shaft holes of the fixed bottom beam 1 and the rotating beam 2.

Compare with reducing aligning bearing roller, this bearing roller aligning support's bearing roller is less to the wearing and tearing of conveyer belt 111, compare with traditional bearing roller aligning support, this bearing roller aligning support of same material strength can obtain higher unbalanced bearing capacity, traditional bearing roller aligning support just begins the adjustment with edger roll contact extrusion at conveyer belt 111, and its reaction force just gets into the adjustment when this device has the off tracking trend at conveyer belt 111, and regulation sensitivity is higher, makes the bearing roller be in regulation balanced position more easily, and the bearing roller that is in balanced position is also less to the wearing and tearing of conveyer belt 111 relatively.

Claims

1. The carrier roller aligning support for preventing the conveying belt from deviating is characterized by comprising a T-shaped fixed bottom beam (1) consisting of a first cross beam (11) and a first longitudinal beam (12), wherein two ends of the first cross beam (11) are fixed on a conveying belt frame; the carrier roller mounting structure is characterized by further comprising an I-shaped rotating beam (2) consisting of a second cross beam (21) and a second longitudinal beam (22) and a third cross beam (23), wherein a left upright post (3) and a right upright post (5) for mounting a carrier roller (4) are arranged at the left end and the right end of the upper surface of the second cross beam (21), and a left vertical roller (8) and a right vertical roller (7) are arranged at the left end and the right end of the upper surface of the third cross beam (23); the vertical type horizontal type vertical type horizontal type; the upper surface of the first cross beam (11) and the lower surface of the second cross beam (21) are respectively provided with at least one arc-shaped groove (9) which takes the rotating shaft (6) as the circle center, and at least one bearing part (10) capable of rolling is arranged in the arc-shaped groove (9).

2. A idler centring cradle which prevents belt deviation as set forth in claim 1, characterised in that the axis of rotation (6) is located on the centre line of the idler (4).

3. A idler centring bracket according to claim 1 characterised in that the arcuate slot (9) is closed at both ends.

4. A idler centering bracket for preventing belt deviation as recited in claim 1, wherein the upper and lower ends of the rotating shaft (6) are connected with the first longitudinal beam (12) and the second longitudinal beam (22) through bearings.

5. A carrier roller aligning support for preventing the deviation of a conveying belt according to claim 1, wherein the bearing member is a steel ball or a variable diameter steel column roller, and an extension line of the axis of the variable diameter steel column roller is directed to the rotating shaft (6).