Anti-deviation switch of bucket elevator

Abstract

The utility model relates to the technical field of bucket elevators, in particular to an anti-deviation switch of a bucket elevator. A deviation switch of a bucket elevator comprises a machine shell, a switch is arranged at the upper end of the machine shell, a push piece is arranged on one side of the switch and connected with one end of a spring plate, the other end of the spring plate is connected with a roller carrier through a fixing plate, the roller carrier is connected with a roller, a spring is arranged below the push piece, one end of the spring is connected with the fixing plate, and the other end of the spring is connected with a supporting plate. The supporting plate is fixed to one side of the machine shell. Compared with the prior art, a friction piece at the existing contact end is replaced by the roller, so that the friction with the belt is alleviated, and the damage caused by the dragging of the belt is reduced. In addition, potential damage caused by metal fatigue in the using process is greatly eliminated through the movable spring plate, and the overall reliability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket elevators, in particular to an anti-deviation switch for bucket elevators. Background Art

[0002] If the conveying unit of the bucket elevator continues to run when it is off track, the conveying unit will be damaged, resulting in a reduction in the service life of the bucket elevator. Chinese patent publication number CN203294729 discloses a mechanical deviation switch for a belt bucket elevator. When the deviation of the conveying unit touches the contact end, the spring drives the connecting structure to trigger the switch to rotate under the action of the contact end. The connecting structure compresses the spring. During its action, the fixed contact end rubs against the belt and is easily damaged by force. In addition, the lower end of the spring is fixed, and the repeated bending of the upper end of the spring is achieved only by the flexibility of the material of the spring itself, which is prone to potential damage due to metal fatigue. Summary of the invention

[0003] The utility model provides a switch for preventing a bucket elevator from running off the track in order to overcome the shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, a bucket elevator anti-deviation switch is designed, comprising a casing, a switch is provided at the upper end of the casing, a push piece is provided on one side of the switch, the push piece is connected to one end of a spring plate, the other end of the spring plate is connected to a roller frame through a fixed plate, the roller frame is connected to a roller, a spring is provided below the push piece, one end of the spring is connected to the fixed plate, the other end of the spring is connected to a support plate, and the support plate is fixed to one side of the casing.

[0005] The left and right sides of the support plate are respectively provided with bending plates bent towards the spring plate.

[0006] The inner wall of the bending plate abuts against the outer wall of the spring plate.

[0007] A top plate is arranged between the roller frame and the fixed plate, one end of the top plate is connected to the roller frame, and the other end of the top plate is connected to the fixed plate.

[0008] The fixing plate is connected with the spring plate through bolts.

[0009] The push piece has an L-shaped structure.

[0010] Compared with the prior art, the utility model replaces the friction piece at the existing contact end with a roller, thereby alleviating the friction with the belt and reducing the damage caused by belt dragging. In addition, the movable spring plate largely eliminates the potential damage caused by metal fatigue during use, thereby improving the overall reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a front view of the utility model.

[0013] Figure 3 It is a top view of the utility model. DETAILED DESCRIPTION

[0014] The utility model is further described below with reference to the accompanying drawings.

[0015] like Figures 1 to 3 As shown, a switch 2 is provided at the upper end of the casing 1, a push piece 3 is provided at one side of the switch 2, the push piece 3 is connected to one end of a spring plate 4, the other end of the spring plate 4 is connected to a roller frame 6 through a fixed plate 5, the roller frame 6 is connected to a roller 7, and a spring 8 is provided below the push piece 3, one end of the spring 8 is connected to the fixed plate 5, the other end of the spring 8 is connected to a support plate 9, and the support plate 9 is fixed to one side of the casing 1.

[0016] The left and right sides of the support plate 9 are respectively provided with bending plates 9-1 bent toward the spring plate 4. The inner wall of the bending plate 9-1 abuts against the outer wall of the spring plate 4, playing a guiding and limiting role to prevent the spring plate 4 from deflecting.

[0017] A top plate 10 is provided between the roller frame 6 and the fixing plate 5, one end of the top plate 10 is connected to the roller frame 6, and the other end of the top plate 10 is connected to the fixing plate 5. The fixing plate 5 is connected to the spring plate 4 by bolts 11.

[0018] The push piece has an L-shaped structure.

[0019] When the utility model is used, the roller 7 contacts the side edge of the bucket elevator belt. The movement of the belt drives the roller 7 to roll. When the belt deviates toward the device side, it pushes the roller 7 and the spring plate 4. When the spring plate 4 is squeezed to a certain extent, the spring plate 4 pushes the push plate 3, pushes and triggers the switch 2 of the bucket elevator, closes the bucket elevator, and adjusts the belt.

[0020] The utility model replaces the friction part of the existing contact end with a roller, which alleviates the friction with the belt and reduces the damage caused by belt dragging. In addition, the movable spring plate greatly eliminates the potential damage caused by metal fatigue during use, thereby improving the overall reliability of the device.

Claims

1. A bucket elevator anti-deviation switch, comprising a housing, characterized in that: The housing (1) is provided with a switch (2) at the upper end, a push piece (3) is provided on one side of the switch (2), the push piece (3) is connected to one end of a spring plate (4), the other end of the spring plate (4) is connected to a roller frame (6) through a fixing plate (5), the roller frame (6) is connected to a roller (7), a spring (8) is provided below the push piece (3), one end of the spring (8) is connected to the fixing plate (5), the other end of the spring (8) is connected to a support plate (9), and the support plate (9) is fixed to one side of the housing (1).

2. The anti-deviation switch of a bucket elevator according to claim 1, characterized in that: The left and right sides of the support plate (9) are respectively provided with bending plates (9-1) bent in the direction of the spring plate (4).

3. The anti-deviation switch of a bucket elevator according to claim 2, characterized in that: The inner wall of the bending plate (9-1) abuts against the outer wall of the spring plate (4).

4. The anti-deviation switch for a bucket elevator according to claim 1, characterized in that: A top plate (10) is provided between the roller frame (6) and the fixed plate (5), one end of the top plate (10) is connected to the roller frame (6), and the other end of the top plate (10) is connected to the fixed plate (5).

5. The anti-deviation switch for a bucket elevator according to claim 1, characterized in that: The fixing plate (5) is connected to the spring plate (4) via bolts (11).

6. The anti-deviation switch of a bucket elevator according to claim 1, characterized in that: The push piece (3) has an L-shaped structure.

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