CN111470269A

CN111470269A - Conveyer with self-adaptation regulation formula overspeed device tensioner

Info

Publication number: CN111470269A
Application number: CN202010239059.1A
Authority: CN
Inventors: 陈国金; 刘加辉; 戴顺尧; 黄鑫磊; 金佳杰
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-07-31
Anticipated expiration: 2040-03-30
Also published as: CN111470269B

Abstract

The invention discloses a conveyor with an adaptive adjustment type tensioning device. The traditional tensioning device excessively pursues the conveying tension for the conveying belt, keeps the tensioning characteristic of the conveying belt, neglects the characteristic of the conveying belt, and leads the surface of the conveying belt to be easy to crack due to long-time stretching; the invention comprises a frame, a conveying belt, a driving roller, a driven roller, a driving mechanism and a self-adjusting tension device. The self-adjusting tensioner includes a support device and a cushioned tensioning device. The supporting device comprises a first supporting roller and a second supporting roller. The buffer tensioning device comprises a guide pillar, a guide ring buckle, a buffer spring, a fixed column, a suspension roller and a suspension box body. The invention can automatically reduce the tension force by the buffer spring along with the aging and extension of the conveyer belt, and avoids the fracture of the conveyer belt due to transitional tension after the conveyer belt is aged, thereby greatly prolonging the service life of the conveyer belt.

Description

Conveyer with self-adaptation regulation formula overspeed device tensioner

Technical Field

The invention belongs to the technical field of conveyors, and particularly relates to a conveyor with a self-adaptive adjusting type tensioning device.

Background

In the working process of the conveyer belt conveyer, the conveyer belt is loosened due to overlong continuous working time, extrusion of conveyed articles and overlong use time, the traditional tensioning device excessively pursues the conveying tensioning force of the conveyer belt, keeps the tensioning characteristic of the conveyer belt, neglects the characteristic of the conveyer belt, and leads the surface of the conveyer belt to be easy to crack due to long-time stretching; meanwhile, the traditional tensioning device only focuses on the self-tensioning function, the influence of the self-stability on the work of the whole conveying belt conveyor is neglected, the tensioning device is unstable, the tensioning function cannot be achieved, and meanwhile, the conveying belt is directly deviated.

Disclosure of Invention

The invention aims to provide a conveyor with an adaptive adjusting type tensioning device.

The invention comprises a frame, a conveying belt, a driving roller, a driven roller, a driving mechanism and a self-adjusting tension device. The driving roller and the driven roller are both supported on the frame and are connected and driven through the conveyer belt. The driving roller is driven by a driving mechanism.

The self-adjusting tensioning device comprises a supporting device and a buffer tensioning device. The supporting device comprises a first supporting roller and a second supporting roller. The first supporting roller and the second supporting roller are supported on the frame. The top edges of the first and second support rollers contact the non-conveying section of the conveyor belt. The buffer tensioning device comprises a guide pillar, a guide ring buckle, a buffer spring, a fixed column, a suspension roller and a suspension box body. The guide pillar is vertically arranged and fixed on the rack. And a spring limiting plate is fixed at the bottom end of the guide pillar. The guide post is sleeved with a spring sliding plate. The buffer spring is sleeved on the guide post and is positioned between the spring limiting plate and the spring sliding plate. The conveying fixing column is fixed in the suspension box body. The suspension box body forms a sliding pair with the guide pillar through the guide ring buckle and abuts against the spring sliding plate. The guide ring at the lower side is buckled against the top surface of the spring sliding plate. The suspension roller is supported on the top of the suspension box body and is positioned between the first support roller and the second support roller. The suspension roller presses the non-conveying section of the conveying belt, so that the non-conveying section of the conveying belt sequentially bypasses the first support roller, the suspension roller and the second support roller in a wave shape.

Preferably, the hanging box body is provided with a counterweight block mounting position. The weight of the suspension box body is adjusted by increasing or decreasing the number of the counterweight blocks on the counterweight block mounting positions.

Preferably, the two guide ring buckles are arranged up and down, one end of each guide ring buckle is fixed with the fixed column, and the other end of each guide ring buckle and the guide column form a sliding pair.

Preferably, the driving mechanism comprises a motor, a coupler and a reduction gearbox. The motor and the reduction gearbox are both fixed on the frame. The output shaft of the motor is fixed with the input shaft of the reduction box through a coupler. The output shaft of the reduction box is fixed with the driving roller.

Preferably, the conveying section of the conveying belt is arranged obliquely.

The invention has the beneficial effects that:

1. the invention can automatically reduce the tension force by the buffer spring along with the aging and extension of the conveyer belt, and avoids the fracture of the conveyer belt due to transitional tension after the conveyer belt is aged, thereby greatly prolonging the service life of the conveyer belt.

2. The self-adjusting tensioning device can adjust the tensioning force by changing the number of the balancing weights, and is more convenient to operate compared with the existing pure spring tensioning device.

3. The suspension box body can move downwards by means of gravity after the conveying belt is aged and elongated to continuously provide tension for the conveying belt, and the phenomenon that the conveying belt loses the tension along with the time extension is avoided.

4. The suspension box body is guided by the guide post, and cannot shake, so that the deviation of a conveying belt cannot be caused, and the stability of the whole working system is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

figure 2 is a schematic view of the self adjusting tensioner of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a conveyor with an adaptive tensioning device comprises a frame 7, a conveyor belt 5, a driving roller, a driven roller, a driving mechanism and an automatic tensioning device. The driving roller and the driven roller are supported on the frame 7 and are connected and driven through the conveyer belt 5. The conveying section (top surface) of the conveyor belt 5 is obliquely arranged. The driving mechanism comprises a motor 1, a coupler 2 and a reduction gearbox 3. The motor 1 and the reduction gearbox 3 are both fixed on the frame 7. The output shaft of the motor is fixed with the input shaft of the reduction gearbox 3 through the coupler 2. An output shaft of the reduction gearbox 3 is fixed with the driving roller. The reduction gearbox 3 performs rotation speed conversion between the input shaft and the output shaft through a gear or a belt wheel.

The self-adjusting tensioner includes a support device and a cushioned tensioning device. The supporting device comprises a first supporting roller 4, a second supporting roller 6, a first mounting bracket and a second mounting bracket. The first mounting bracket and the second mounting bracket are fixed on the frame 7. The first support roller 4 is supported on a first mounting bracket. The second supporting roller 6 is supported on a second mounting bracket. The top edges of the first supporting roller 4 and the second supporting roller 6 are contacted with the non-conveying section of the conveying belt 5 to form a support for the non-conveying section of the conveying belt 5.

The buffer tensioning device comprises a guide post 8, a guide ring buckle 9, a buffer spring 10, a fixed post 11, a suspension roller 12 and a suspension box body 13. The guide post 8 is vertically arranged and fixed on the frame 7. And a spring limiting plate is fixed at the bottom end of the guide pillar 8. The guide post 8 is sleeved with a spring sliding plate. The buffer spring 10 is sleeved on the guide post 8 and is positioned between the spring limiting plate and the spring sliding plate. The depressing spring slide plate can compress the buffer spring 10. The fixed column 11 is fixed in the suspension box body 13. The two guide ring buckles 9 are arranged up and down, one ends of the two guide ring buckles are fixed with the fixed column 11, and the other ends of the two guide ring buckles and the guide column 8 form a sliding pair. The guide ring 9 on the underside bears against the top face of the spring slide. The suspension drum 12 is supported on top of the suspension box 13 and is located between the first support drum 4 and the second support drum 6. The suspension roller 12 presses the non-conveying section of the conveyor belt 5, so that the non-conveying section of the conveyor belt 5 sequentially bypasses the first support roller 4, the suspension roller 12 and the second support roller 6 in a wave shape. The hanging box body 13 is provided with a balancing weight mounting position. Through the counter weight quantity on the increase and decrease counter weight piece installation position, can adjust the weight that hangs box 13, adjust 5 tensile forces of conveyer belt from the beginning.

The working principle of the invention is as follows:

during operation, the suspension roller 12 exerts a downward pressure on the non-conveying section of the conveyor belt 5 under the action of the weight of the suspension box 13, so that the portion of the conveyor belt 5 between the first and second support rollers is deformed, thereby tensioning the conveyor belt. In the process that the suspension box body 13 slides downwards, the guide ring buckle 9 compresses the buffer spring 10; the compressed buffer spring 10 generates an upward elastic supporting force to the suspension case 13, and the supporting force received by the suspension case 13 is larger the lower the position of the suspension case 13 is. Since the more the suspension box 13 is downward, the larger the deformation of the conveyor belt 5 is, and if the conveyor belt 5 is still strongly tensioned at this time, the breakage of the conveyor belt 5 is easily caused; in the invention, the more downward the suspension box body 13 is, the less the tension force applied to the conveyer belt 5 is, thereby avoiding the breakage of the conveyer belt 5; meanwhile, due to the existence of the guide pillar 8 and the guide ring buckle 9, the suspension box body has good stability, and the tension force is provided, so that the conveying belt cannot deviate.

Claims

1. A conveyor with a self-adaptive adjustment type tensioning device comprises a rack, a conveying belt, a driving roller, a driven roller and a driving mechanism; the method is characterized in that: the self-adjusting tensioning device is further included; the driving roller and the driven roller are supported on the frame and are in transmission connection through the conveyer belt; the driving roller is driven by a driving mechanism; the self-adjusting tensioning device comprises a supporting device and a buffer tensioning device; the supporting device comprises a first supporting roller and a second supporting roller; the first supporting roller and the second supporting roller are supported on the frame; the top edges of the first supporting roller and the second supporting roller are contacted with the non-conveying section of the conveying belt; the buffer tensioning device comprises a guide pillar, a guide ring buckle, a buffer spring, a fixed column, a suspension roller and a suspension box body; the guide post is vertically arranged and fixed on the rack; a spring limiting plate is fixed at the bottom end of the guide pillar; a spring sliding plate is sleeved on the guide post; the buffer spring is sleeved on the guide post and positioned between the spring limiting plate and the spring sliding plate; the conveying fixing column is fixed in the suspension box body; the suspension box body and the guide post form a sliding pair through the guide ring buckle and abut against the spring sliding plate; the guide ring at the lower side is buckled against the top surface of the spring sliding plate; the suspension roller is supported at the top of the suspension box body and is positioned between the first support roller and the second support roller; the suspension roller presses the non-conveying section of the conveying belt, so that the non-conveying section of the conveying belt sequentially bypasses the first support roller, the suspension roller and the second support roller in a wave shape.

2. A conveyor with an adaptive take-up as in claim 1, wherein: the suspension box body is provided with a balancing weight mounting position; the weight of the suspension box body is adjusted by increasing or decreasing the number of the counterweight blocks on the counterweight block mounting positions.

3. A conveyor with an adaptive take-up as in claim 1, wherein: the two guide ring buckles are arranged up and down, one end of each guide ring buckle is fixed with the fixed column, and the other end of each guide ring buckle and the guide column form a sliding pair.

4. A conveyor with an adaptive take-up as in claim 1, wherein: the driving mechanism comprises a motor, a coupler and a reduction gearbox; the motor and the reduction gearbox are both fixed on the frame; an output shaft of the motor is fixed with an input shaft of the reduction box through a coupler; the output shaft of the reduction box is fixed with the driving roller.

5. A conveyor with an adaptive take-up as in claim 1, wherein: the conveying section of the conveying belt is obliquely arranged.