Belt deviation prevention device

Abstract

The utility model discloses an anti-deviation device for a belt. The anti-deviation device comprises the belt, a carrier roller, a lower protection switch, an upper protection switch and a frame, the belt is connected with the carrier roller, the lower protection switch is arranged below the belt, the frame is arranged above the belt, and the upper protection switch is connected with the frame. The travel switch and the switch bracket are arranged below the belt, so that the problem that the switch is stopped due to belt flash is solved while the anti-deviation function of the belt is realized; an upper protection switch is arranged, double-switch protection is achieved, and reliability is high; the structure is simple, investment is small, and cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyors, and in particular relates to a belt deviation prevention device. Background Art

[0002] The tubular belt conveyor is a new type of conveyor that combines pipeline conveying and belt conveying. It needs to convey materials by curling the belt into a tube and then unfolding the tubular belt. However, if an abnormality occurs when the belt is unfolded, it will not unfold normally or deviate, which will cause the belt to be damaged and cause huge losses to the entire conveying system. Therefore, it is necessary to design a belt anti-deviation device to detect the information in time and shut down the conveyor when the belt cannot unfold normally or deviates.

[0003] The existing anti-deviation devices for tubular belt conveyors used in industrial production processes mainly adopt the traditional mode method. The anti-deviation switches are installed on both sides of the belt to prevent the belt from deviating. However, in actual operation, the exposed belt flash or steel wire can easily cause the deviation switch to trip, affecting production. In order to prevent this situation, some anti-deviation switches will use the bottom-mounted deviation switch method. This deviation switch is relatively large, costly, and easy to be bumped by people. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a belt deviation prevention device.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a belt deviation prevention device, comprising a belt, a roller, a lower protection switch, an upper protection switch and a frame; the belt is connected to the roller, the lower protection switch is arranged below the belt, the frame is arranged above the belt, and the upper protection switch is connected to the frame.

[0007] Preferably, the lower protection switch comprises a travel switch and a switch bracket, and the travel switch and the switch bracket are connected.

[0008] Preferably, the length of the switch bracket is 200-600 mm.

[0009] Preferably, the upper protection switch supports a micro switch.

[0010] Preferably, the belt supports a tubular belt.

[0011] Preferably, the diameter of the tubular belt is 200-550 mm.

[0012] Preferably, the roller has a diameter of 80 to 180 mm and a width of 250 to 400 mm.

[0013] Preferably, the frame comprises a belt conveyor bracket, a sliding sleeve, a lever mechanism and a rotating shaft; the rotating shaft is arranged below the belt conveyor bracket, the lever mechanism is connected to the rotating shaft, and the sliding sleeve is connected to the lever mechanism.

[0014] The beneficial effects of the utility model are:

[0015] A travel switch and a switch bracket are arranged under the belt, which can realize the belt anti-deviation function while solving the problem of the belt flying edge stop switch; an upper protection switch is arranged, with double switch protection and high reliability; the structure is simple, the investment is small, and the cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the lower protection switch provided by the embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the upper protection switch structure provided by an embodiment of the utility model.

[0018] In the figure: 1-belt, 2-roller, 3-travel switch, 4-tube belt machine bracket, 5-sliding sleeve, 6-lever mechanism, 7-rotating shaft, 8-upper protection switch, 9-switch bracket. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0020] like Figure 1 , 2 As shown, a belt anti-deviation device includes a belt 1, a roller 2, a lower protection switch, an upper protection switch 8 and a frame; the belt 1 and the roller 2 are connected, the lower protection switch is arranged below the belt 1, the frame is arranged above the belt 1, and the upper protection switch 8 is connected to the frame.

[0021] The upper protection switch 8 and the lower protection switch are set to prevent the belt from deviating. The belt 1 needs to be moved and transported within a preset space. When the belt deviates or is not normally unfolded, it will touch the upper protection switch 8 or the lower protection switch, and the protection switch will open and close the circuit to stop the belt conveying system.

[0022] The lower protection switch comprises a travel switch 3 and a switch bracket 9, and the travel switch 3 and the switch bracket 9 are connected.

[0023] The travel switch 3 is triggered by the switch bracket 9 to realize the function of the lower protection switch to prevent the belt from deviating.

[0024] The length of the switch bracket 9 is 200-600 mm.

[0025] The length of the switch bracket 9 needs to be set according to the belt size.

[0026] In this embodiment, the length of the switch bracket 9 is 400 mm, which is about 100 mm longer than the length of the ordinary deviation switch. The belt flash cannot hit the switch, which fundamentally solves the problem of the belt flash hitting the protection switch and requires little investment.

[0027] The upper protection switch 8 supports a micro switch.

[0028] The micro switch has the advantages of small size, light weight, high reliability, sensitive operation, long life and low cost, which can reduce the cost while ensuring the high quality of the protection switch 8 to realize its function.

[0029] The belt 1 supports a tubular belt.

[0030] The diameter of the tubular belt is 200-550 mm.

[0031] In this embodiment, the model of the tubular belt is ST2500, and the diameter of the tubular belt is 375 mm.

[0032] The roller 2 has a diameter of 80 to 180 mm and a width of 250 to 400 mm.

[0033] In this embodiment, the diameter of the roller 2 is 133 mm and the width is 365 mm.

[0034] The rotation of the roller 2 causes the belt 1 to move and unfold at a preset position. The sizes of the belt 1, roller 2 and switch bracket 9 need to correspond one to one. Appropriate sizes ensure the smooth operation of the belt conveyor system, ensure that the lower protection switch correctly performs its function, and realize the function of the belt anti-deviation device.

[0035] The frame includes a belt conveyor bracket 4, a sliding sleeve 5, a lever mechanism 6 and a rotating shaft 7; the rotating shaft 7 is arranged below the belt conveyor bracket 4, the lever mechanism 6 is connected to the rotating shaft 7, and the sliding sleeve 5 is connected to the lever mechanism 6.

[0036] The various structures of the frame are connected and matched to make the belt 1 move, thereby realizing the normal operation of the tubular belt conveyor.

[0037] The utility model arranges a travel switch and a switch bracket under the belt, which realizes the belt anti-deviation function and solves the problem of the belt flying edge stopping switch; an upper protection switch is arranged, double switch protection, high reliability; simple structure, small investment, and cost saving.

Claims

1. A belt anti-deviation device, characterized in that: The invention comprises a belt (1), a roller (2), a lower protection switch, an upper protection switch (8) and a frame; the belt (1) and the roller (2) are connected, the lower protection switch is arranged below the belt (1), the frame is arranged above the belt (1), and the upper protection switch (8) is connected to the frame.

2. A belt anti-deviation device as claimed in claim 1, characterized in that: The lower protection switch comprises a travel switch (3) and a switch bracket (9), and the travel switch (3) and the switch bracket (9) are connected.

3. A belt anti-deviation device as claimed in claim 2, characterized in that: The length of the switch bracket (9) is 200-600 mm.

4. A belt anti-deviation device as claimed in claim 1, characterized in that: The upper protection switch (8) supports a micro switch.

5. The belt deviation prevention device according to claim 1, characterized in that: The belt (1) supports a tubular belt.

6. A belt anti-deviation device as claimed in claim 5, characterized in that: The diameter of the tubular belt is 200-550 mm.

7. The belt deviation prevention device according to claim 1, characterized in that: The diameter of the roller (2) is 80 to 180 mm, and the width is 250 to 400 mm.

8. The belt anti-deviation device according to claim 1, characterized in that: The frame comprises a belt conveyor support (4), a sliding sleeve (5), a lever mechanism (6) and a rotating shaft (7); The rotating shaft (7) is arranged below the belt conveyor support (4), the lever mechanism (6) is connected to the rotating shaft (7), and the sliding sleeve (5) is connected to the lever mechanism (6).

Images