Braking device used after chute blockage

Abstract

The utility model relates to a braking device after chute blockage, which is arranged between a previous process belt conveyor and a next process belt conveyor, a machine head shield and a chute are arranged between the previous process belt conveyor and the next process belt conveyor, the device comprises a notch, an opening and closing door is arranged on the notch, and the opening and closing door is connected with the chute. A supporting table is fixedly arranged on the outer wall of the machine head shield below the notch, and a triggering unit which can be triggered after the opening and closing door is opened is mounted on the supporting table; the pull rope switch is installed on the side face of the belt conveyor in the previous process and is in linkage with the trigger unit, when the chute is blocked and materials overflow, the overflowing materials can push the opening and closing door on the machine head protective cover, then the trigger unit is triggered, the action and the pull rope switch form a chain reaction, and therefore the materials are prevented from overflowing. By means of the automatic mechanism, the operation of the belt conveyor in the previous process can be automatically and rapidly stopped, the automatic mechanism effectively avoids equipment overload and damage caused by material blockage, meanwhile, the requirement for manual intervention is reduced, and the safety and stability of a production line are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of belt conveying, in particular to a chute blocked material brake device. BACKGROUND

[0002] The belt conveyor is an important tool for transporting raw materials and finished materials, especially in metal smelting enterprises, and the belt conveyor is indispensable equipment, in the process of conveying materials, if foreign matter is blocked in the discharging chute, it is difficult to find in time, which can easily cause the belt to be blocked, the belt to be worn out and long-term shutdown, if high-temperature ore stays on the belt, if the chute cannot be cleared in a short time, it is easy to cause the belt to be scalded or the belt to catch fire.

[0003] Therefore, we improve the technical equipment of the factory area to meet the production demand. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem in the prior art, provides a chute blocked material brake device, which can be sensed by post personnel in the first time after the chute is blocked, and the blocked material can be dredged in the shortest time.

[0005] The utility model solves the technical problem and realizes the following technical scheme, a chute blocked material brake device is arranged between the upper process belt conveyor and the lower process belt conveyor, a machine head guard is arranged between the upper process belt conveyor and the lower process conveyor, the bottom end edge of the machine head guard is fixedly connected with the top end edge of the chute, the discharging end of the upper process belt conveyor is located directly above the machine head guard, the discharging end of the bottom end of the machine head guard is opposite the feeding end of the top end of the chute, and the discharging end of the bottom end of the chute is opposite the feeding end of the lower process belt conveyor.

[0006] The device comprises notches arranged on three vertical surfaces of the machine head guard away from the upper process belt, switch doors are arranged on the notches, the top edges of the switch doors are hinged to the top edges of the notches to form the opening direction of the switch doors from bottom to top, a support table is fixedly arranged on the outer wall of the machine head guard below the notches, and a trigger unit that can be triggered after the switch door is opened is installed on the support table.

[0007] A pull rope switch is installed on the side surface of the upper process belt conveyor, the pull rope switch is connected with the trigger unit, and the material overflowing from the machine head guard pushes the switch door to trigger the trigger unit, so that the pull rope switch is linked to stop the upper process belt.

[0008] The technical problem of the utility model can also be solved by the following technical scheme, the trigger unit of the above-mentioned chute blocked material brake device is a contact switch.

[0009] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the above-mentioned chute blocked material brake device, the support table is vertically fixed on the facade side wall of the machine head cover.

[0010] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the above-mentioned chute blocked material brake device, the switch door is 300mm*400mm.

[0011] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the above-mentioned chute blocked material brake device, three switch doors in the above-mentioned chute blocked material brake device,

[0012] One of the two switch doors located on the left and right sides of the upper process belt conveyor, the bottom of the switch door is 300mm away from the chute bottom, and the bottom of the other switch door is 400mm away from the chute bottom.

[0013] The bottom of the switch door away from the upper process belt conveyor is 200mm away from the chute bottom.

[0014] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the above-mentioned chute blocked material brake device, further comprising,

[0015] The power supply is used for power supply of the contact switch and the pull rope switch,

[0016] The contact switch is installed on the support table, and is configured to close the contact of the contact switch when the switch door is pushed away by the material,

[0017] The intermediate relay is connected in series with the contact of the contact switch inside the intermediate relay, is used for isolating and converting the circuit, and the intermediate relay has a normally open contact, which is closed when the relay is powered,

[0018] The pull rope switch is installed on the upper process belt conveyor, has a normally closed contact, and is configured to selectively cause the upper process belt conveyor to stop, the normally open contact of the intermediate relay is connected in parallel with the normally closed contact of the pull rope switch, and is configured to cause the upper process belt conveyor to stop when the normally open contact of the intermediate relay is closed even if the pull rope of the pull rope switch is not pulled,

[0019] The upper process belt conveyor control loop is connected in series with the normally closed contact of the pull rope switch, and is configured to be cut off when the normally closed contact of the pull rope switch is disconnected, so that the upper process belt conveyor stops.

[0020] Compared with the prior art, the utility model has the beneficial technical effects that:

[0021] (1) When the chute is blocked and causes material overflow, the overflow material will push the switch door on the machine head guard, and then trigger the trigger unit, which will form a chain reaction with the pull rope switch, and can automatically and quickly stop the work of the upper process belt conveyor. This automatic mechanism effectively avoids equipment overload and damage caused by blockage, reduces the need for manual intervention, and improves the safety and stability of the production line;

[0022] (2) The design of the switch door in the device allows the material to push from below, forming an opening direction from bottom to top, which not only ensures that the switch door can be tightly closed under normal circumstances to prevent material leakage, but also can respond flexibly when blocked. In addition, the size and position of the switch door can be adjusted according to actual production needs, enhancing the flexibility and adaptability of the device;

[0023] (3) Through the interlocking mechanism of the pull rope switch and the trigger unit, once the chute is blocked, the system can immediately send a stop signal to achieve rapid response. This early warning mechanism helps to reduce downtime, reduce production losses, and improve overall production efficiency;

[0024] (4) Tangible benefits: reduce downtime, increase production benefits = save time * hourly production * ton of ore benefits * per year ≈ 2 hours / month * 320 tons / hour * 100 yuan / ton * 12 months ≈ 76.8 million yuan / year; Reduce belt wear and tear, reduce costs and increase efficiency by about 10 million yuan / year, totaling 86.8 million yuan / year;

[0025] (5) Intangible benefits: safe and stable, reduce labor intensity, reduce equipment damage, and invest less; Avoid personal and equipment safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a front view structural schematic diagram of the utility model;

[0027] Figure 2 It is a circuit principle schematic diagram of the utility model.

[0028] Reference signs: 1, upper process belt conveyor; 2, lower process belt conveyor; 3, machine head guard; 4, chute; 5, support table; 6, trigger unit; 7, pull rope switch; 8, switch door; 9, power supply; 10, intermediate relay. DETAILED DESCRIPTION

[0029] The specific technical solutions of the utility model are further described below with reference to the drawings, so that those skilled in the art can further understand the utility model without limiting its rights.

[0030] Example 1, refer to Figure 1A chute blocking brake device is arranged between the upper process belt conveyor 1 and the lower process belt conveyor 2, a machine head guard 3 and a chute 4 are arranged between the upper process belt conveyor 1 and the lower process belt conveyor 2, the machine head guard 3 and the chute 4 are box body structures, the bottom end edge of the machine head guard 3 is fixedly connected with the top end edge of the chute 4, the discharge end of the upper process belt conveyor 1 is located directly above the machine head guard 3, the discharge end of the bottom end of the machine head guard 3 is opposite to the feeding end of the top end of the chute 4, and the discharge end of the bottom end of the chute 4 is opposite to the feeding end of the lower process belt conveyor 2.

[0031] The device comprises notches respectively arranged on three vertical surfaces of the machine head guard 3 away from the upper process belt, the notches are square notches, and a switch door 8 is arranged on the notches, the top edge of the switch door 8 is hinged to the top edge of the notch, so as to form an opening direction of the switch door 8 from bottom to top, a support table 5 is fixedly arranged on the outer wall of the machine head guard 3 below the notch, the support table 5 is formed in a substantially square plate structure, the support table 5 is vertically fixed horizontally on the vertical side wall of the machine head guard 3, and a trigger unit 6 that can be triggered after the switch door 8 is opened is arranged on the support table 5, and the trigger unit 6 is a contact switch.

[0032] A pull rope switch 7 is arranged on the side of the upper process belt conveyor 1, the pull rope switch 7 is interlocked with the trigger unit 6, the pull rope switch 7 and the trigger switch are prior art, and thus the specific structure principle is not described here, and the specific structure principle can be selected according to the use requirement, the material overflowing from the machine head guard 3 pushes the switch door 8 to trigger the trigger unit 6, so as to link the pull rope switch 7 to stop the upper process belt.

[0033] The switch door 8 is 300mm*400mm, and three switch doors 8 are arranged; two of the three switch doors 8 are arranged on the left and right sides of the upper process belt conveyor 1, one of the two switch doors 8 is 300mm away from the bottom of the chute 4, and the other switch door 8 is 400mm away from the bottom of the chute 4; and the bottom of the switch door 8 away from the upper process belt conveyor 1 is 200mm away from the bottom of the chute 4.

[0034] In example 1, the contact switch and the pull rope switch 7 of the upper process belt conveyor 1 are interlocked, and the switch door 8 is suspended and in a normally closed state. When the chute 4 is blocked, the material in the machine head guard 3 is accumulated, the switch door 8 is opened from inside to outside, and the switch door 8 is opened at the moment, and the contact switch is triggered, so that the pull rope switch 7 is triggered to stop the belt.

[0035] In example 2, referring to Figure 2 , the chute blocking brake device of example 1 further comprises

[0036] A power supply 9 is arranged to supply power to the contact switch and the pull rope switch 7.

[0037] The contact switch is installed on the support table 5, and is configured to close the contact when the switch door 8 is pushed open by the material;

[0038] The intermediate relay 10 has a coil inside which is connected in series with the contact of the contact switch, and is used for isolation and conversion of the circuit. The intermediate relay 10 has a normally open contact which is closed when the relay is powered on;

[0039] The pull cord switch 7 is installed on the upstream belt conveyor 1, and has a normally closed contact which is configured to selectively cause the upstream belt conveyor 1 to stop. The normally open contact of the intermediate relay 10 is connected in parallel with the normally closed contact of the pull cord switch 7, and is configured to cause the upstream belt conveyor 1 to stop when the normally open contact of the intermediate relay 10 is closed, even if the pull cord of the pull cord switch 7 is not pulled;

[0040] The upstream belt conveyor 1 control circuit is connected in series with the normally closed contact of the pull cord switch 7, and is configured to be cut off when the normally closed contact of the pull cord switch 7 is open, causing the upstream belt conveyor 1 to stop.

[0041] In Example 2, when the switch door is closed, the contact switch is open, the intermediate relay is powered off, and the normally open contact is open. The normally closed contact of the pull cord switch remains closed, and the belt conveyor control circuit is normally powered on, and the belt conveyor is running;

[0042] When the door is open, the contact switch is closed, the intermediate relay is powered on, and the normally open contact is closed, which is equivalent to simulating the action of pulling the pull cord switch, causing the normally closed contact of the pull cord switch to open, cutting off the belt conveyor control circuit, and the belt conveyor stops.

Claims

1. A chute blockage post-braking device, characterized by: It is arranged between the upper process belt conveyor and the lower process belt conveyor, and a machine head guard and a chute are arranged between the upper process belt conveyor and the lower process belt conveyor, the bottom end edge of the machine head guard is fixedly connected with the top end edge of the chute, the discharge end of the upper process belt conveyor is located directly above the top end of the machine head guard, the discharge end of the bottom end of the machine head guard is opposite to the feeding end of the top end of the chute, and the discharge end of the bottom end of the chute is opposite to the feeding end of the lower process belt conveyor. The device comprises notches respectively arranged on three vertical surfaces of the machine head guard away from the upper process belt, and a switch door is arranged on the notches, the top edge of the switch door is hinged to the top edge of the notch to form an opening direction of the switch door from bottom to top, a support table is fixedly arranged on the outer wall of the machine head guard below the notch, and a trigger unit triggered after the opening of the switch door is arranged on the support table. A pull rope switch is arranged on the side of the upper process belt conveyor, the pull rope switch is interlocked with the trigger unit, and the machine head guard pushes the switch door after the overflow of the material to trigger the trigger unit, so that the pull rope switch is linked to stop the upper process belt.

2. A chute blockage brake device according to claim 1, characterized in that: The trigger unit is a contact switch.

3. A chute blockage brake device according to claim 1, characterized in that: The support table is horizontally and vertically fixed to the vertical side wall of the machine head guard.

4. The chute blockage brake apparatus of claim 1, wherein: The switch door is 300mm*400mm.

5. The chute blockage brake apparatus of claim 1, wherein: Three switch doors are arranged in the machine head guard. Two of the three switch doors are arranged on the left and right sides of the upper process belt conveyor, one of the two switch doors is 300mm away from the bottom of the chute, and the other is 400mm away from the bottom of the chute. One of the three switch doors is 200mm away from the bottom of the chute.

6. A chute blockage brake device according to claim 1, characterized in that: Further comprising A power supply is arranged to supply power to the contact switch and the pull rope switch. The contact switch is arranged on the support table and configured to close the contact when the switch door is pushed open by the material. An intermediate relay is connected in series with the contact of the contact switch inside the intermediate relay and is used for isolation and conversion of a circuit, and the intermediate relay has a normally open contact which is closed when the relay is powered. The pull rope switch is arranged on the upper process belt conveyor and has a normally closed contact which is configured to selectively cause the upper process belt conveyor to stop, the normally open contact of the intermediate relay is connected in parallel with the normally closed contact of the pull rope switch, and the normally open contact of the intermediate relay is configured to cause the upper process belt conveyor to stop when the normally open contact is closed even if the pull rope of the pull rope switch is not pulled when the intermediate relay is powered. The upper process belt conveyor control circuit is connected in series with the normally closed contact of the pull rope switch, and the control circuit is configured to be cut off when the normally closed contact of the pull rope switch is opened, so that the upper process belt conveyor is stopped.

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