阅读说明：本技术 鼓式全断面断带保护装置 (Drum-type full-section broken belt protection device ) 是由 姚艳萍 张必胜 韩刚 于 2019-10-23 设计创作，主要内容包括：本发明公开了一种鼓式全断面断带保护装置,属于带式输送机技术领域。鼓式全断面断带保护装置,包括机架,圆弧形结构的上固定摩擦副、上活动摩擦副、下固定摩擦副和下活动摩擦副,液压缸,回位弹簧,压力传感器；机架的侧面纵向设置有侧托辊,机架的中部位置设置有横向的皮带托辊；上固定摩擦副和上活动摩擦副安装在机架的上部共同组成了上执行机构,上活动摩擦副可绕转轴转动靠近上固定摩擦副；下固定摩擦副和下活动摩擦副安装在机架的下部共同组成了下执行机构,下活动摩擦副可绕转轴转动靠近下固定摩擦副；液压缸和回位弹簧纵向固定在机架上。本发明结构简单,价格低廉、抓捕力大、对输送带无次生伤害,应用广泛。(The invention discloses a drum-type full-section belt breakage protection device, and belongs to the technical field of belt conveyors. The drum type full-section broken belt protection device comprises a rack, an upper fixed friction pair, an upper movable friction pair, a lower fixed friction pair and a lower movable friction pair which are of circular arc structures, a hydraulic cylinder, a return spring and a pressure sensor; a side carrier roller is longitudinally arranged on the side surface of the frame, and a transverse belt carrier roller is arranged in the middle of the frame; the upper fixed friction pair and the upper movable friction pair are arranged on the upper part of the frame to jointly form an upper actuating mechanism, and the upper movable friction pair can rotate around the rotating shaft to be close to the upper fixed friction pair; the lower fixed friction pair and the lower movable friction pair are arranged at the lower part of the frame to jointly form a lower actuating mechanism, and the lower movable friction pair can rotate around the rotating shaft to be close to the lower fixed friction pair; the hydraulic cylinder and the return spring are longitudinally fixed on the frame. The invention has simple structure, low cost, large catching force, no secondary damage to the conveying belt and wide application.)

1. A drum-type full-section broken belt protection device is characterized by comprising a rack, an upper fixed friction pair, an upper movable friction pair, a lower fixed friction pair and a lower movable friction pair which are of circular arc structures, a hydraulic cylinder, a return spring and a pressure sensor, wherein the circular arc structures are arranged on the upper fixed friction pair, the upper movable friction pair, the lower fixed friction pair and the lower movable friction pair; a side carrier roller is longitudinally arranged on the side surface of the rack, and a transverse belt carrier roller is arranged in the middle of the rack; the upper fixed friction pair and the upper movable friction pair are arranged on the upper part of the frame to jointly form an upper actuating mechanism, and the upper movable friction pair can rotate around the rotating shaft to be close to the upper fixed friction pair; the lower fixed friction pair and the lower movable friction pair are arranged at the lower part of the frame to jointly form a lower actuating mechanism, and the lower movable friction pair can rotate around the rotating shaft to be close to the lower fixed friction pair; the pressure sensors are arranged on the upper movable friction pair and the lower movable friction pair; the hydraulic cylinder and the return spring are longitudinally fixed on the machine frame between the upper movable friction pair and the lower movable friction pair, the hydraulic cylinder is hinged with the upper movable friction pair and the lower movable friction pair, and the return spring is fixedly connected with the upper movable friction pair and the lower movable friction pair.

2. The drum type full-section broken belt protection device of claim 1, wherein the frame comprises an upper beam, a middle beam and a lower beam; the upper fixed friction pair is fixed on the upper beam, the upper movable friction pair is hinged on the middle beam, and the upper fixed friction pair and the upper movable friction pair jointly form an upper actuating mechanism; the lower fixed friction pair is arranged on the lower beam, the lower movable friction pair is hinged on the middle beam, and the lower fixed friction pair and the lower movable friction pair jointly form a lower actuating mechanism.

3. The drum type full-section broken belt protection device of claim 1 or 2, wherein the upper movable friction pair and the lower movable friction pair are hinged on the middle beam through a rotating shaft.

4. The drum type full-section broken belt protection device of claim 1 or 2, wherein the outer arc surfaces of the upper movable friction pair and the lower movable friction pair are provided with built-in carrier rollers, and the inner arc surfaces are provided with latticed rubber coatings.

5. The drum type full-section broken belt protection device of claim 1 or 2, wherein one end of the upper fixed friction pair and the lower fixed friction pair is provided with a guide roller.

6. The drum type full-section broken belt protection device as claimed in claim 1 or 2, wherein the upper beam is symmetrically provided with two mounting holes, the upper fixed friction pair is provided with two protruding insertion columns which are in interference fit with the mounting holes, the upper fixed friction pair is fixed on the upper beam through the two insertion columns in an insertion manner, the lower beam is symmetrically provided with two mounting holes, the lower fixed friction pair is provided with two protruding insertion columns which are in interference fit with the mounting holes, and the lower fixed friction pair is fixed on the lower beam through the two insertion columns in an insertion manner.

7. The drum type full-section broken belt protection device of claim 1 or 2, wherein a belt roller and a speed sensor are installed at the belt inlet and outlet position of the frame center sill.

8. The drum type full-section broken belt protection device of claim 1 or 2, wherein the upper fixed friction pair, the upper movable friction pair, the lower fixed friction pair and the lower movable friction pair are all arc-shaped, so that the stress direction and the movement direction of the belt are 90 degrees.

Technical Field

The invention belongs to the technical field of belt conveyors, relates to a conveyor belt protection device, and particularly relates to a drum type full-section belt breakage protection device.

Background

With the development of industry, belt conveyors are widely used in various fields, and meanwhile, higher requirements are also put on the belt conveyors. In the application of the belt conveyor, a long-distance, large-traffic and large-angle conveying mode becomes the development direction of the belt conveyor in the future, but the belt breakage problem is caused by long-term high-load operation, excessive tensioning of the conveying belt and some uncertain factors. The belt breakage accident not only can generate huge economic loss, but also can even cause machine damage and death.

The prior protective device for the belt breaking technology of the conveyor has the following defects: 1) the structure is complex, and the operation and the maintenance are complex and complicated; 3) the instantaneous friction force is very large, the secondary damage of the conveying belt is easily caused, and the resetting work difficulty of the device is high; 3) expensive and increases the operating cost.

In order to overcome the defects of the conventional belt breakage technology protection device of the conveyor, the invention develops a novel belt breakage protection device.

Disclosure of Invention

The invention aims to provide a drum type full-section broken belt protection device.

The invention is realized by the following technical scheme:

the drum type full-section broken belt protection device comprises a rack, an upper fixed friction pair, an upper movable friction pair, a lower fixed friction pair and a lower movable friction pair which are of circular arc structures, a hydraulic cylinder, a return spring and a pressure sensor; a side carrier roller is longitudinally arranged on the side surface of the rack, and a transverse belt carrier roller is arranged in the middle of the rack; the upper fixed friction pair and the upper movable friction pair are arranged on the upper part of the frame to jointly form an upper actuating mechanism, and the upper movable friction pair can rotate around the rotating shaft to be close to the upper fixed friction pair; the lower fixed friction pair and the lower movable friction pair are arranged at the lower part of the frame to jointly form a lower actuating mechanism, and the lower movable friction pair can rotate around the rotating shaft to be close to the lower fixed friction pair; the pressure sensors are arranged on the upper movable friction pair and the lower movable friction pair; the hydraulic cylinder and the return spring are longitudinally fixed on the machine frame between the upper movable friction pair and the lower movable friction pair, the hydraulic cylinder is hinged with the upper movable friction pair and the lower movable friction pair, and the return spring is fixedly connected with the upper movable friction pair and the lower movable friction pair.

Furthermore, the frame comprises an upper beam, a middle beam and a lower beam; the upper fixed friction pair is fixed on the upper beam, the upper movable friction pair is hinged on the middle beam, and the upper fixed friction pair and the upper movable friction pair jointly form an upper actuating mechanism; the lower fixed friction pair is arranged on the lower beam, the lower movable friction pair is hinged on the middle beam, and the lower fixed friction pair and the lower movable friction pair jointly form a lower actuating mechanism.

The upper movable friction pair and the lower movable friction pair are hinged and installed on the middle beam through a rotating shaft.

The outer arc surfaces of the upper movable friction pair and the lower movable friction pair are provided with built-in carrier rollers, the inner arc surfaces are provided with latticed rubber coatings, the built-in carrier rollers can bear the conveying quality of a belt and reduce the friction with the upper movable friction pair and the lower movable friction pair to reduce the running resistance of the belt, and the inner arc surfaces of the upper fixed friction pair and the lower fixed friction pair are provided with the latticed rubber coatings to increase the friction force during belt breakage braking.

One end of the upper fixed friction pair and one end of the lower fixed friction pair are provided with guide carrier rollers, and the guide carrier rollers can reduce additional resistance in the process of belt breakage braking.

Two mounting holes are symmetrically formed in the upper beam, two protruding insertion columns in interference fit with the mounting holes are arranged on the upper fixed friction pair, the upper fixed friction pair is fixed to the upper beam through the two insertion columns in an insertion mode, the lower beam is symmetrically formed in the lower fixed friction pair, two protruding insertion columns in interference fit with the mounting holes are arranged on the lower fixed friction pair, and the lower fixed friction pair is fixed to the lower beam through the two insertion columns in an insertion mode.

And belt carrier rollers and speed sensors are arranged at belt inlet and outlet positions of the middle beam of the rack.

The upper fixed friction pair, the upper movable friction pair, the lower fixed friction pair and the lower movable friction pair are all arc-shaped, so that the stress direction and the motion direction of the belt are 90 degrees, and the braking effect on the belt can be greatly improved.

The belt breakage protection device has the advantages that the upper actuating mechanism and the lower actuating mechanism jointly act to protect belt breakage, the rack is fixedly arranged on two sides of the belt frame during installation, the bearing section of the belt passes through the space between the two friction pairs of the upper actuating mechanism through the belt carrier roller, the return section of the belt passes through the space between the two friction pairs of the lower actuating mechanism through the belt carrier roller, the outer arc surface of the upper movable friction pair of the upper actuating mechanism is provided with the built-in carrier roller which can bear the conveying quality of the belt, and the running resistance of the belt is reduced; when the upper belt and the lower belt are broken, the tension force of the upper belt and the lower belt suddenly disappears, the tension device triggers the pressure sensor to enable the cavity arranged in the hydraulic cylinder to be filled with oil, the upper movable friction pair of the upper executing mechanism is pushed to move upwards to be close to the fixed friction pair, the lower movable friction pair of the lower executing mechanism is pushed to move downwards to be close to the fixed friction pair, and the belt stops running through the friction force of the upper friction pair and the lower friction pair to break the belt; when the speed sensor arranged at the inlet and the outlet of the belt detects that the belt is broken and stops running, the oil supply to the hydraulic cylinder is stopped, the braking action is stopped, when the belt is broken and returns to normal, the oil pressure of the hydraulic cylinder can be removed, and meanwhile, the return spring fixedly connected with the movable friction pair can pull the movable friction pair to return to the initial position, so that the belt can run immediately.

The invention has simple structure, low price, large catching force and no secondary damage to the conveying belt, and can be widely applied to the fields of coal mines, docks, ports, power plants and the like.

Drawings

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

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

FIG. 2 is a schematic view of the intrados of the upper movable friction pair;

FIG. 3 is a schematic view of the outer arc surface of the upper movable friction pair;

FIG. 4 is a schematic view of an upper fixed friction pair;

in the figure: 1-a frame, 2-an upper fixed friction pair, 3-an upper movable friction pair, 4-a lower fixed friction pair, 5-a lower movable friction pair, 6-a hydraulic cylinder, 7-a return spring, 8-a pressure sensor, 9-a speed sensor, 10-a side carrier roller, 11-a belt carrier roller, 12-an upper beam, 13-a middle beam, 14-a lower beam, 15-a mounting hole, 16-a rotating shaft, 17-a built-in carrier roller, 18-a fixed block, 19-an angle support and 20-a guide carrier roller.

Detailed Description

The invention is further illustrated in the following by means of all figures and examples.

The drum-type full-section broken belt protection device shown in fig. 1 and 2 comprises a frame 1, an upper fixed friction pair 2, an upper movable friction pair 3, a lower fixed friction pair 4 and a lower movable friction pair 5 which are of circular arc structures, a hydraulic cylinder 6, a return spring 7 and a pressure sensor 8; a side carrier roller 10 is longitudinally arranged on the side surface of the frame 1, and a transverse belt carrier roller 11 is arranged in the middle of the frame; the upper fixed friction pair 2 and the upper movable friction pair 3 are arranged at the upper part of the frame 1 to jointly form an upper actuating mechanism, and the upper movable friction pair 3 can rotate around a rotating shaft to be close to the upper fixed friction pair 2; the lower fixed friction pair 4 and the lower movable friction pair 5 are arranged at the lower part of the frame 1 to jointly form a lower actuating mechanism, and the lower movable friction pair 5 can rotate around a rotating shaft to be close to the lower fixed friction pair 4; the pressure sensor 8 is arranged on the upper movable friction pair 3 and the lower movable friction pair 5; the hydraulic cylinder 6 and the return spring 7 are longitudinally fixed on the frame 1 between the upper movable friction pair and the lower movable friction pair, wherein the hydraulic cylinder 6 is hinged with the upper movable friction pair 3 and the lower movable friction pair 5 through an angle support 19, and the return spring 7 is fixedly connected with the upper movable friction pair 3 and the lower movable friction pair 5 through a fixing block 18.

The frame comprises an upper beam 12, a middle beam 13 and a lower beam 14; the upper fixed friction pair 2 is fixed on the upper beam 12, the upper movable friction pair 3 is hinged on the middle beam 13, and the upper fixed friction pair 2 and the upper movable friction pair 3 jointly form an upper actuating mechanism; the lower fixed friction pair 4 is arranged on the lower beam 14, the lower movable friction pair 5 is hinged on the middle beam 13, and the lower fixed friction pair 4 and the lower movable friction pair 5 jointly form a lower actuating mechanism; as shown in fig. 3, the upper movable friction pair 3 and the lower movable friction pair 5 are hinged on the middle beam 13 through a rotating shaft 16; the outer cambered surfaces of the upper movable friction pair 3 and the lower movable friction pair 5 are provided with built-in carrier rollers 17, and the inner cambered surfaces are provided with latticed rubber coatings; as shown in fig. 4, one end of the upper fixed friction pair 2 and one end of the lower fixed friction pair 4 are provided with a guide carrier roller 20, and the guide carrier roller 20 can reduce additional resistance in the process of belt breakage braking; the upper beam 12 is symmetrically provided with two mounting holes 15, the upper fixed friction pair 2 is provided with two protruding insertion columns which are in interference fit with the mounting holes 15, the upper fixed friction pair 2 is inserted and fixed on the upper beam 12 through the two insertion columns, similarly, the lower beam is symmetrically provided with two mounting holes, the lower fixed friction pair is provided with two protruding insertion columns which are in interference fit with the mounting holes, and the lower fixed friction pair is inserted and fixed on the lower beam through the two insertion columns; a belt carrier roller 15 and a speed sensor 9 are arranged at the belt inlet and outlet position of the frame middle beam 13; the upper fixed friction pair 2, the upper movable friction pair 3, the lower fixed friction pair 4 and the lower movable friction pair 5 are all arc-shaped, so that the stress direction and the motion direction of the belt are 90 degrees, and the braking effect on the belt can be greatly improved.

The above embodiments are only preferred technical solutions of the present invention, and are not intended to limit the present invention in any way. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.