Emergency braking device of belt conveyor

Abstract

The utility model provides an emergency braking device of a belt conveyor. The emergency braking device of the belt conveyor comprises two fixing plates fixedly installed on a rack of the belt conveyor, two supporting rods are fixedly installed between the two fixing plates, the two supporting rods are each provided with two moving rings in a sliding mode, the same supporting plate is fixedly installed among the four moving rings, and the two supporting plates are fixedly installed on the rack of the belt conveyor. Four guide sliding rods penetrate through the supporting plate in a sliding mode, the same connecting plate is fixedly installed at the top ends of the four guide sliding rods, the guide sliding rods are sleeved with first springs, one ends of the first springs make contact with the connecting plate, and the other ends of the first springs make contact with the supporting plate. The emergency braking device of the belt conveyor has the advantages that the situation that the conveying belt and the driving roller cannot stop moving quickly due to inertia can be avoided, the conveying belt and the driving roller cannot be damaged, and use is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to an emergency braking device of a belt conveyor. Background Art

[0002] A belt conveyor is a mechanical device that uses friction to continuously transport materials. It can transport both bulk and finished goods, and can be integrated with the production processes of various industrial enterprises to form a rhythmic flow line. It is widely used in industries such as docks, coal mining, metallurgy, grain, and papermaking. When a belt conveyor encounters a situation that threatens personal safety or equipment safety, it must be braked urgently. Therefore, an emergency brake device is required. Currently, belt conveyors are typically equipped with brakes for emergency braking.

[0003] When the belt conveyor is working, the conveyor belt and the active roller rotate at a relatively high speed. In addition, the conveyor belt is loaded with items, which makes the conveyor belt and the active roller have a large inertia. After emergency braking by the brake, the conveyor belt and the active roller cannot stop quickly due to the action of inertia, which affects personal safety or equipment safety.

[0004] Therefore, it is necessary to provide a new emergency brake device for belt conveyor to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an emergency braking device for a belt conveyor which can avoid the situation where the conveyor belt and the active roller cannot stop moving quickly due to inertia, does not cause damage to the conveyor belt and the active roller, and is reliable.

[0006] In order to solve the above technical problems, the emergency brake device of the belt conveyor provided by the utility model includes: two fixed plates fixedly mounted on the belt conveyor frame, two support rods fixedly mounted between the two fixed plates, two moving rings slidably mounted on the two support rods, the same support plate is fixedly mounted between the four moving rings, four guide slide rods are passed through and slidably mounted on the support plate, the top ends of the four guide slide rods are fixedly mounted with the same connecting plate, a first spring is sleeved on the guide slide rod, one end of the first spring is in contact with the connecting plate, and the other end is in contact with the support plate, and one end of the connecting plate is detachable A trapezoidal rubber block is fixedly installed on the connecting plate, and the bottom fixed mounting rod of the connecting plate has a longitudinal fixed shaft. A first suction cup electromagnet is fixedly installed on the top of the support plate, and the bottom end of the longitudinal fixed shaft is in contact with the adsorption surface of the first suction cup electromagnet. A second suction cup electromagnet is fixedly installed on the fixed plate away from the trapezoidal rubber block, and a transverse fixed shaft is fixedly installed on the support plate, and one end of the transverse fixed shaft away from the support plate is in contact with the adsorption surface of the second suction cup electromagnet. A second spring is sleeved on the support rod, and one end of the second spring is in contact with the corresponding movable ring, and the other end is in contact with the corresponding fixed plate.

[0007] Preferably, the bottom ends of the four guide slide bars are all fixedly mounted with limiting end plates.

[0008] Preferably, a linear bearing is fixedly installed in the movable ring, and the support rod passes through the linear bearing and is slidably connected to the inner wall of the linear bearing.

[0009] Preferably, oblique support rods are fixedly installed at the bottom of the two fixed plates, one end of the two oblique support rods away from the fixed plates is fixedly connected to the belt conveyor frame, and the same cross support rod is fixedly installed between the two oblique support rods.

[0010] Preferably, a vertical plate is fixedly installed on the bottom of the support plate, an electric push rod is fixedly installed on the bottom of the fixed plate away from the trapezoidal rubber block, and a push-back plate is fixedly installed on the upper part of the output end of the electric push rod.

[0011] Preferably, a hoop is fixedly provided on the outer sleeve of the electric push rod, a reinforcing long rod is fixedly connected to the outer wall of the hoop, and one end of the reinforcing long rod away from the hoop is fixedly connected to the cross support rod.

[0012] Compared with the related art, the emergency brake device of the belt conveyor provided by the utility model has the following beneficial effects:

[0013] The utility model provides an emergency braking device for a belt conveyor. By arranging components such as a support rod, a support plate, a guide slide bar, a connecting plate, a trapezoidal rubber block, a first spring, a longitudinal fixed shaft, a first suction cup electromagnet, a transverse fixed shaft, a second suction cup electromagnet, and a second spring, when the belt conveyor performs an emergency brake, the first suction cup electromagnet and the second suction cup electromagnet lose power at the same time, so that the trapezoidal rubber block can be automatically released and stuck between the conveyor belt and the active roller, and at the same time, resistance is caused to the conveyor belt and the active roller, so that the two are stuck, thereby preventing the conveyor belt and the active roller from being unable to stop quickly due to inertia, and no damage is caused to the conveyor belt and the active roller. The utility model has the advantage of reliable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of the emergency brake device for a belt conveyor provided by the utility model;

[0015] Figure 2 for Figure 1 A schematic structural diagram of the emergency brake device of the belt conveyor shown in another perspective;

[0016] Figure 3 for Figure 1 The structure diagram of the emergency brake device of the belt conveyor in actual application state is shown;

[0017] Figure 4 for Figure 1 The front view of the emergency brake device of the belt conveyor in the actual application state is shown.

[0018] Numbers in the figure: 1. Belt conveyor frame; 2. Fixed plate; 3. Support rod; 4. Moving ring; 5. Support plate; 6. Guide slide bar; 7. Connecting plate; 8. Trapezoidal rubber block; 9. First spring; 10. Longitudinal fixed shaft; 11. First suction cup electromagnet; 12. Horizontal fixed shaft; 13. Second suction cup electromagnet; 14. Second spring; 15. Vertical plate; 16. Electric push rod; 17. Push back plate; 18. Mounting plate; 19. Docking plate. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0020] Please refer to Figures 1-4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the emergency brake device for a belt conveyor provided by the utility model; Figure 2 for Figure 1 A schematic structural diagram of the emergency brake device of the belt conveyor shown in another perspective; Figure 3 for Figure 1The structure diagram of the emergency brake device of the belt conveyor in actual application state is shown; Figure 4 for Figure 1The front view of the emergency brake device of the belt conveyor in actual application state is shown. The emergency brake device of the belt conveyor is used to cooperate with the traditional brake to perform rapid emergency braking on the belt conveyor, which includes: two fixed plates 2 fixedly mounted on the belt conveyor frame 1, two support rods 3 fixedly mounted between the two fixed plates 2, two movable rings 4 slidably mounted on the two support rods 3, linear bearings fixedly mounted inside the movable rings 4, the support rods 3 pass through the linear bearings and are slidably connected to the inner wall of the linear bearings, the same support plate 5 is fixedly mounted between the four movable rings 4, four guide slides 6 pass through and slidably mounted on the support plate 5, the top of the four guide slides 6 is fixedly mounted with the same connecting plate 7, a first spring 9 is sleeved on the guide slide 6, and one end of the first spring 9 is in contact with the connecting plate 7, The other end is in contact with the supporting plate 5, and one end of the connecting plate 7 is detachably fixed with a trapezoidal rubber block 8. During emergency braking, when the brake on the belt conveyor is actuated, the trapezoidal rubber block 8 is simultaneously stuck between the conveyor belt and the rotating roller of the belt conveyor, and both are stopped. Since the trapezoidal rubber block 8 is made of rubber, it will not cause damage to the conveyor belt and the rotating roller. A docking plate 19 is fixedly installed on the connecting plate 7, and a mounting plate 18 is embedded and fixedly installed in the trapezoidal rubber block 8. The mounting plate 18 is detachably fixed on the docking plate 19 and can be fixedly connected by bolts or by other detachable fixing methods. This makes it convenient to replace the severely deformed trapezoidal rubber block 8. The bottom fixed mounting rod of the connecting plate 7 has The longitudinal fixed shaft 10 and the top of the support plate 5 are fixedly installed with a first suction cup electromagnet 11, and the bottom end of the longitudinal fixed shaft 10 contacts the adsorption surface of the first suction cup electromagnet 11. After the first suction cup electromagnet 11 is energized, the longitudinal fixed shaft 10 is sucked, so that the trapezoidal rubber block 8 is kept in a lower position during normal use, and the top is kept at a certain distance from the conveyor belt. When the belt conveyor performs an emergency brake, the first suction cup electromagnet 11 loses power, and under the elastic force of multiple first springs 9, the connecting plate 7 moves upward, and the connecting plate 7 drives the trapezoidal rubber block 8 to rise, so that the trapezoidal rubber block 8 contacts the conveyor belt. A second suction cup electromagnet 13 is fixedly installed on the fixed plate 2 away from the trapezoidal rubber block 8, and a transverse fixed Shaft 12, one end of the transverse fixed shaft 12 away from the support plate 5 is in contact with the adsorption surface of the second suction cup electromagnet 13. After the second suction cup electromagnet 13 is energized, the transverse fixed shaft 12 is sucked, so that the support plate 5 is kept at a position farther away from the active roller of the belt conveyor, so that the trapezoidal rubber block 8 can maintain a certain distance from the active roller. A second spring 14 is provided on the support rod 3, one end of the second spring 14 is in contact with the corresponding movable ring 4, and the other end is in contact with the corresponding fixed plate 2. When the belt conveyor performs an emergency brake, the second suction cup electromagnet 13 also loses power. Under the elastic force of the two second springs 14, the support plate 5 moves toward the active roller of the belt conveyor, and then the trapezoidal rubber block 8 is in contact with the active roller.

[0021] In this embodiment, in order to limit the rising height of the connecting plate 7 , the bottom ends of the four guide slide bars 6 are fixedly mounted with limiting end plates.

[0022] In this embodiment, in order to increase the stability of the support of the two fixed plates 2, oblique support rods are fixedly installed at the bottom of the two fixed plates 2, and the ends of the two oblique support rods away from the fixed plates 2 are fixedly connected to the belt conveyor frame 1, and the same cross brace is fixedly installed between the two oblique support rods.

[0023] In this embodiment, after the trapezoidal rubber block 8 brakes the conveyor belt and the active roller, in order to reset the trapezoidal rubber block 8 in the direction away from the active roller, a vertical plate 15 is fixedly installed at the bottom of the support plate 5, and an electric push rod 16 is fixedly installed at the bottom of the fixed plate 2 away from the trapezoidal rubber block 8. A push-back plate 17 is fixedly installed on the upper part of the output end of the electric push rod 16. The bottom plane of the vertical plate 15 is at a height lower than the top plane of the push-back plate 17. When the trapezoidal rubber block 8 is reset, the output end of the electric push rod 16 is started to retract, and the electric push rod 16 will drive the push-back plate 17 to gradually move away from the active roller. The push-back plate 17 pushes the vertical plate 15 to move, thereby causing the support plate 5 to gradually move away from the active roller. , the support plate 5 drives the horizontal fixed shaft 12, the connecting plate 7, the trapezoidal rubber block 8 and other components to move, and finally the horizontal fixed shaft 12 can be brought into contact with the adsorption surface of the second suction cup electromagnet 13. At this time, the left and right positions of the trapezoidal rubber block 8 are reset, and then the two suction cup electromagnets are energized, and the second suction cup electromagnet 13 will suck the horizontal fixed shaft 12. Since the rising distance of the connecting plate 7 is relatively limited under the restriction of the four limit end plates, the longitudinal fixed shaft 10 will move downward under the suction force of the first suction cup electromagnet 11 and directly contact the first suction cup electromagnet 11. Driven by the longitudinal fixed shaft 10, the connecting plate 7 moves downward to the initial position, so that the upper and lower positions of the trapezoidal rubber block 8 are reset.

[0024] In this embodiment, in order to improve the stability of the support for the electric push rod 16, a hoop is fixedly provided on the outer sleeve of the electric push rod 16, and a reinforcing long rod is fixedly connected to the outer wall of the hoop. The end of the reinforcing long rod away from the hoop is fixedly connected to the cross support rod.

[0025] The working principle of the emergency brake device of the belt conveyor provided by the utility model is as follows:

[0026] When in use, the emergency setting device of the belt conveyor is installed in the conveyor belt, such as Figure 3-Figure 4 As shown, two fixing plates 2 are fixed on the belt conveyor frame 1 and are close to the active roller;

[0027] When the belt conveyor is operating normally, the first suction cup electromagnet 11 and the second suction cup electromagnet 13 are both energized to work, so that the trapezoidal rubber block 8 does not contact the conveyor belt and the active roller. When the belt conveyor is emergency braked, the first suction cup electromagnet 11 and the second suction cup electromagnet 13 are de-energized at the same time. In the absence of suction, the connecting plate 7 moves upward under the elastic force of the multiple first springs 9, and the support plate 5 moves toward the active roller under the elastic force of the two second springs 14, which makes the trapezoidal rubber block 8 move upward while approaching the active roller, and its top touches the conveyor belt. The inclined surface will contact the active roller. Since the active roller and the conveyor belt have inertia during operation, they will continue to rotate after emergency braking. After the trapezoidal rubber block 8 contacts the conveyor belt and the active roller, it will be drawn into the gap between the two under the drive of the conveyor belt and the active roller, and at the same time constitute resistance to the rotation of the conveyor belt and the active roller. Moreover, since the trapezoidal rubber block 8 has a trapezoidal cross section, the drawn-in part will gradually thicken, and the resistance to the conveyor belt and the active roller will become very large in a short time, causing the conveyor belt and the active roller to stop rotating quickly.

[0028] After the belt conveyor fault is eliminated, the active roller is pushed in the opposite direction to push the trapezoidal rubber block 8 out. After the clamping of the conveyor belt and the active roller is lost, the trapezoidal rubber block 8 can be reset. When resetting, the output end of the electric push rod 16 is first retracted to drive the push-back plate 17 away from the active roller. The push-back plate 17 will push the vertical plate 15 to move, so that the support plate 5 gradually moves away from the active roller. Finally, the horizontal fixed shaft 12 on the push-back plate 17 will contact the adsorption surface of the second suction cup electromagnet 13, and the left and right positions of the trapezoidal rubber block 8 are restored. Until the beginning, and then the two suction cup electromagnets are energized. After the second suction cup electromagnet 13 is energized, the suction force generated will suck the horizontal fixed shaft 12, so that the position of the support plate 5 can be fixed. Since the bottom end of the longitudinal fixed shaft 10 is relatively close to the first suction cup electromagnet 11, the longitudinal fixed shaft 10 will move downward under the suction force of the first suction cup electromagnet 11 and be directly sucked by the first suction cup electromagnet 11. Driven by the longitudinal fixed shaft 10, the connecting plate 7 moves downward to the initial height position, thereby resetting the upper and lower positions of the trapezoidal rubber block 8.

[0029] Compared with the related art, the emergency brake device of the belt conveyor provided by the utility model has the following beneficial effects:

[0030] The utility model provides an emergency braking device for a belt conveyor. By arranging components such as a support rod 3, a support plate 5, a guide slide bar 6, a connecting plate 7, a trapezoidal rubber block 8, a first spring 9, a longitudinal fixed shaft 10, a first suction cup electromagnet 11, a transverse fixed shaft 12, a second suction cup electromagnet 13, and a second spring 14, when the belt conveyor performs an emergency brake, the first suction cup electromagnet 11 and the second suction cup electromagnet 13 lose power at the same time, so that the trapezoidal rubber block 8 can be automatically released and stuck between the conveyor belt and the active roller, and at the same time cause resistance to the conveyor belt and the active roller, so that the two are stuck, thereby preventing the conveyor belt and the active roller from being unable to stop quickly due to inertia, and without causing damage to the conveyor belt and the active roller. The utility model has the advantage of reliable use.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An emergency brake device for a belt conveyor, comprising two fixing plates fixedly mounted on a belt conveyor frame, characterized in that: The top end of the guide rail is fixedly provided with a first spring, and one end of the first spring contacts with the connecting plate, and the other end contacts with the support plate. The bottom end of the guide rail is fixedly provided with a first suction cup electromagnet on the top of the support plate, and the bottom end of the longitudinal fixed shaft contacts with the adsorption surface of the first suction cup electromagnet, and the second suction cup electromagnet is fixedly installed on the fixed plate away from the trapezoidal rubber block. The support plate is fixedly provided with a transverse fixed shaft, and one end of the transverse fixed shaft away from the support plate contacts with the adsorption surface of the second suction cup electromagnet. The support rod is provided with a second spring, and one end of the second spring contacts with the corresponding moving ring, and the other end contacts with the corresponding fixed plate.

2. The emergency brake device for a belt conveyor according to claim 1, characterized in that: The bottom ends of the four guide slide bars are all fixedly mounted with limiting end plates.

3. The emergency brake device for a belt conveyor according to claim 1, characterized in that: A linear bearing is fixedly installed in the movable ring, and the support rod passes through the linear bearing and is slidably connected to the inner wall of the linear bearing.

4. The emergency brake device for a belt conveyor according to claim 1, characterized in that: The bottoms of the two fixed plates are fixedly mounted with oblique support rods, one end of the two oblique support rods away from the fixed plates is fixedly connected to the belt conveyor frame, and the same cross support rod is fixedly mounted between the two oblique support rods.

5. The emergency brake device for a belt conveyor according to claim 4, characterized in that: A vertical plate is fixedly installed on the bottom of the support plate, an electric push rod is fixedly installed on the bottom of the fixed plate away from the trapezoidal rubber block, and a push-back plate is fixedly installed on the upper part of the output end of the electric push rod.

6. The emergency brake device for a belt conveyor according to claim 5, characterized in that: A hoop is fixedly sleeved on the outer sleeve of the electric push rod, a reinforcing long rod is fixedly connected to the outer wall of the hoop, and one end of the reinforcing long rod away from the hoop is fixedly connected to the cross brace.

Images