CN214731850U

CN214731850U - Pressure-adjustable pinch roller

Info

Publication number: CN214731850U
Application number: CN202023182277.0U
Authority: CN
Inventors: 李超; 张玉柱; 李钟�; 邓健; 邹江
Original assignee: PowerChina Guizhou Electric Power Engineering Co Ltd
Current assignee: PowerChina Guizhou Electric Power Engineering Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-16
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a pressure-adjustable pinch roller, including pivot, wheel body and supporting leg, the supporting leg includes 2, and the supporting leg bilateral symmetry is connected in the pivot left and right sides, still includes the support body, the support body includes stand and horizontal pole, the stand includes 2, and 2 stands are fixed connection respectively and constitute the shape of falling U in horizontal pole both sides, and the interval between 2 stands is greater than the conveyer belt width, and 2 stands are fixed at conveyer belt central line both sides bilateral symmetry, and the one end fixed connection that the supporting leg kept away from the pivot is on the horizontal pole; the supporting leg includes electric telescopic handle, controller and control button, and electric telescopic handle one end fixed connection pivot other end fixed connection horizontal pole, the flexible pivot height that changes of electric telescopic handle, electric telescopic handle are connected with the controller electricity, and the button is connected with the controller electricity. The problem that the supporting legs cannot adjust the length to cause nonadjustable pressure between the pinch roller and the conveying belt in the prior art is solved.

Description

Pressure-adjustable pinch roller

Technical Field

The utility model relates to a pinch roller technical field especially relates to a pinch roller with adjustable pressure.

Background

The belt conveyor is widely used in the industries of mines, power plants, packaging, transportation and the like, and has the main functions of preventing the concave arc section of the rubber belt from being lifted and separated from the surface of the dragging roller and avoiding the problems of belt floating and material scattering during belt material loading. The existing pinch roller is a solid metal roller, the pinch roller is fixedly connected to a rotating shaft and is connected to two supporting legs in a rotating mode through the rotating shaft, a conveyor belt drives the pinch roller to rotate during use, and the pinch roller can press the edge of the conveyor belt when the conveyor belt is lifted. However, the length of the existing supporting legs cannot be adjusted, so that the pressure between the pinch roller and the conveying belt is not adjustable, sometimes, the conveying belt is easily abraded due to overlarge pressure of the pinch roller on the conveying belt, and sometimes, the material leakage or the ribbon floating caused by the coiling of the edge of the conveying belt is caused due to the undersize pressure between the pinch roller and the conveying belt.

Disclosure of Invention

In order to solve the defects and shortcomings of the prior art, the utility model aims to provide a pressure-adjustable pinch roller.

The technical scheme of the utility model is that: a pressure-adjustable pinch roller comprises a rotating shaft, a roller body and supporting legs, wherein the roller body comprises 2 rollers, the roller body is bilaterally and symmetrically connected to the rotating shaft, the supporting legs comprise 2 rollers and a cross rod, the frame comprises stand columns and cross rods, the stand columns comprise 2, the 2 stand columns are respectively and fixedly connected to the two sides of the cross rod to form an inverted U shape, the distance between the 2 stand columns is larger than the width of a conveying belt, the 2 stand columns are bilaterally and symmetrically fixed on the two sides of the central line of the conveying belt, and one end, far away from the rotating shaft, of each supporting leg is fixedly connected to the cross rod; the supporting leg includes electric telescopic handle, controller and control button, and electric telescopic handle one end fixed connection pivot other end fixed connection horizontal pole, the flexible pivot height that changes of electric telescopic handle, electric telescopic handle are connected with the controller electricity, and control button is connected with the controller electricity.

Further, the supporting leg still includes buffer, electric telescopic handle passes through buffer and pivot fixed connection, buffer includes urceolus, pressure spring and slide bar, urceolus opening part internal surface fixed connection annular dog, and annular dog internal diameter is less than the urceolus internal diameter, and pressure spring one end fixed connection is in the urceolus bottom surface, and the one end fixed connection slider of pivot is kept away from to the slide bar, and the slider external diameter and urceolus internal diameter phase-match, slide bar external diameter and annular dog internal diameter phase-match, pressure spring other end fixed connection on the slider, and the slide bar activity is pegged graft in the urceolus.

The utility model has the advantages that: compared with the prior art, the utility model discloses a control button sends signal control electric telescopic handle to the controller to go up and down for the wheel body is adjustable to the pressure of conveying the area, and when the too big wearing and tearing that lead to conveying the area of pressure between wheel body and conveyer belt were too big, adjusts electric telescopic handle length and changes the frictional force between wheel body and conveyer belt, and when the pressure undersize between wheel body and conveyer belt leads to the conveyer belt edge to roll up and lead to leaking the material or ribbon, adjusts electric telescopic handle length and makes the wheel body compress tightly the conveyer belt edge.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

fig. 4 is a schematic diagram of the circuit connection of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

example 1: referring to fig. 1 to 4, a pressure-adjustable pinch roller comprises a rotating shaft 2, a roller body 3 and supporting legs 4, wherein the roller body 3 comprises 2 rollers, the roller body 3 is bilaterally symmetrically connected to the rotating shaft 2, the supporting legs 4 comprise 2 rollers, the supporting legs 4 are bilaterally symmetrically connected to the left side and the right side of the rotating shaft 2, the pinch roller further comprises a frame body 5, the frame body 5 comprises stand columns 5-1 and cross rods 5-2, the stand columns 5-1 comprise 2 stand columns 5-1, the 2 stand columns 5-1 are respectively and fixedly connected to the two sides of the cross rods 5-2 to form an inverted U shape, the distance between the 2 stand columns 5-1 is larger than the width of a conveying belt 1, the 2 stand columns 5-1 are bilaterally and symmetrically fixed to the two sides of a center line of the conveying belt, and one end, far away from the rotating shaft 2, of the supporting leg 4 is fixedly connected to the cross rods 5-2; the supporting leg 4 comprises an electric telescopic rod 4-1, a controller 7 and a control button 8, one end of the electric telescopic rod 4-1 is fixedly connected with a cross rod 5-2 at the other end of a rotating shaft 2, the electric telescopic rod 4-1 stretches to change the height of the rotating shaft 2, the electric telescopic rod 4-1 is electrically connected with the controller 7, and the control button 8 is electrically connected with the controller 7. The support frame 5 is connected with the supporting legs 4, the supporting legs 4 are connected with the rotating shaft 2 in an inverted mode, the mode that the rotating shaft 2 is supported by the supporting legs 4 from the ground upwards in the prior art is changed, and the two upright columns 5-1 of the support frame 5 can be arranged far away, so that the side parts near the conveyor belt 1 are free of shielding, and the operation and the maintenance are more convenient. The utility model discloses a control button 8 sends signal control electric telescopic handle 4-1 to controller 7 and goes up and down for wheel body 3 is adjustable to the pressure of conveyer belt 1, when the too big wearing and tearing to conveyer belt 1 that lead to of pressure between wheel body 3 and conveyer belt 1 were too big, adjust electric telescopic handle 4-1 length change wheel body 3 and conveyer belt 1 within a definite time frictional force, when the pressure undersize between wheel body 3 and conveyer belt 1 leads to conveyer belt 1 edge to roll up and lead to leaking the material or ribbon, adjust electric telescopic handle 4-1 length and make the wheel body compress tightly conveyer belt 1 edge. The controller 7 here may be a PLC, Arduino or raspberry pi like control component with peripheral circuitry.

Furthermore, the supporting leg 4 also comprises a buffer device 4-2, the electric telescopic rod 4-1 is fixedly connected with the rotating shaft 2 through the buffer device 4-2, the buffer device 4-2 comprises an outer cylinder 4-2-1, a pressure spring 4-2-5 and a sliding rod 4-2-4, the inner surface of an opening of the outer cylinder 4-2-1 is fixedly connected with an annular stop block 4-2-2, the inner diameter of the annular stop block 4-2-2 is smaller than that of the outer cylinder 4-2-1, one end of the pressure spring 4-2-5 is fixedly connected with the bottom surface of the outer cylinder 4-2-1, one end of the sliding rod 4-2-4 far away from the rotating shaft 2 is fixedly connected with a sliding block 4-2-3, the outer diameter of the sliding block 4-2-3 is matched with the inner diameter of the outer cylinder 4-2-1, the outer diameter of the sliding rod 4-2-4 is matched with the inner diameter of the annular stop block 4-2-2, the other end of the pressure spring 4-2-5 is fixedly connected to the sliding block 4-2-3, and the sliding rod 4-2-4 is movably inserted into the outer cylinder 4-2-1. Through the buffer device 4-2, when the conveyor belt 1 is rolled upwards to generate upward pressure on the wheel body 3, the rotating shaft 2 can move upwards due to the pressure spring 4-2-5 in the buffer device 4-2, so that the conveyor belt 1 and the wheel body 3 are prevented from being hard to touch and damage the conveyor belt 1.

A control method of a pressure-adjustable pinch roller comprises the following steps: the controller 7 judges a signal of the control button 8 and a lifting judgment value a stored in the controller 7, if the controller 7 receives the signal of the control button 8 and a is 0, the controller 7 controls the electric telescopic rod 4-1 to extend until the signal of the control button 8 disappears, if the controller 7 receives the signal of the control button 8 and a is 1, the controller 7 controls the electric telescopic rod 4-1 to contract until the signal of the control button 8 disappears, when the controller 7 receives the signal of the control button 8 for two times continuously, the time interval of the signals of the control button 8 for two times is less than 0.5s, and the controller 7 carries out non-operation on a. The controller 7 judges signals of the control buttons 8 to control the extension and contraction of the electric telescopic rod 4-1, so that the extension and contraction of the electric telescopic rod 4-1 can be controlled by a single control button 8, and the structure is simpler.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A pressure adjustable pinch roller comprises a rotating shaft (2), roller bodies (3) and supporting legs (4), wherein the roller bodies (3) comprise 2, the roller bodies (3) are bilaterally and symmetrically connected on the rotating shaft (2), the supporting legs (4) comprise 2, the supporting legs (4) are bilaterally and symmetrically connected on the left side and the right side of the rotating shaft (2), the pressure adjustable pinch roller is characterized in that,

the conveying belt is characterized by further comprising a frame body (5), wherein the frame body (5) comprises stand columns (5-1) and cross rods (5-2), the stand columns (5-1) comprise 2, the 2 stand columns (5-1) are respectively and fixedly connected to the two sides of the cross rods (5-2) to form an inverted U shape, the distance between the 2 stand columns (5-1) is larger than the width of the conveying belt (1), the 2 stand columns (5-1) are fixed on the two sides of the central line of the conveying belt in a bilateral symmetry mode, and one ends, far away from the rotating shaft (2), of the supporting legs (4) are fixedly connected to the cross rods (5-2); the supporting legs (4) comprise electric telescopic rods (4-1), a controller (7) and control buttons (8), one ends of the electric telescopic rods (4-1) are fixedly connected with a rotating shaft (2), the other ends of the electric telescopic rods (4-1) are fixedly connected with a cross rod (5-2), the electric telescopic rods (4-1) stretch to change the height of the rotating shaft (2), the electric telescopic rods (4-1) are electrically connected with the controller (7), and the control buttons (8) are electrically connected with the controller (7).

2. The pressure-adjustable pinch roller according to claim 1, wherein the supporting leg (4) further comprises a buffer device (4-2), the electric telescopic rod (4-1) is fixedly connected with the rotating shaft (2) through the buffer device (4-2), the buffer device (4-2) comprises an outer cylinder (4-2-1), a pressure spring (4-2-5) and a sliding rod (4-2-4), the inner surface of an opening of the outer cylinder (4-2-1) is fixedly connected with an annular stop block (4-2-2), the inner diameter of the annular stop block (4-2-2) is smaller than that of the outer cylinder (4-2-1), one end of the pressure spring (4-2-5) is fixedly connected to the bottom surface of the outer cylinder (4-2-1), and one end of the sliding rod (4-2-4) far away from the rotating shaft (2) is fixedly connected with a sliding block (4) 2-3), the outer diameter of the sliding block (4-2-3) is matched with the inner diameter of the outer cylinder (4-2-1), the outer diameter of the sliding rod (4-2-4) is matched with the inner diameter of the annular stop block (4-2-2), the other end of the pressure spring (4-2-5) is fixedly connected to the sliding block (4-2-3), and the sliding rod (4-2-4) is movably inserted into the outer cylinder (4-2-1).