Dustproof bucket elevator deviation detection device

Abstract

The utility model discloses a dustproof bucket elevator deviation detection device, including dustproof shell, roller carrier, roller and proximity switch, the roller carrier is arranged in the dustproof shell in elastic swing, the swing end of the roller carrier is provided with the roller, the roller carrier includes the sensed part, the dustproof shell is provided with the proximity switch for sensing the sensed part, and the proximity switch is connected with the roller carrier. Compared with the prior art, the later maintenance cost is low, the structure is simple and compact, and dust is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket elevators, in particular to a dust-leakage-proof bucket elevator deviation detection device. Background Art

[0002] There are many types of elevators, among which bucket elevator is a fixed mechanical conveying equipment, which is mainly suitable for continuous vertical lifting of powdery, granular and small pieces of materials. It can be widely used in feed mills, flour mills, rice mills, oil mills, starch mills of various sizes, as well as grain depots, port terminals, etc. for lifting bulk materials.

[0003] However, bucket elevators use a bucket fixed to the conveyor belt of the elevator to transport bulk materials upward in a vertical or nearly vertical direction. The conveyor belt of the elevator may deviate, resulting in insufficient material in the bucket, incomplete unloading, increased return material, decreased productivity, and easy collision between the bucket and the barrel, tearing of the conveyor belt, and even fire and other safety hazards.

[0004] The existing technology generally avoids the occurrence of the above problems by setting a deviation alarm device. The deviation alarm device is generally an integrated pressure-type anti-deviation switch purchased, which is directly installed on the housing of the elevator. When the belt deviates, the deviation alarm device is subjected to the squeezing pressure of the belt. When the squeezing pressure exceeds the spring compression force of the deviation alarm device, the piston of the deviation alarm device is pushed to move, triggering the deviation alarm device to send an alarm signal to the control unit. The belt deviation alarm device is integrated and relatively expensive. In addition, if the switch fails or fails, it needs to be replaced as a whole, and the subsequent maintenance cost is high. Summary of the Invention

[0005] The purpose of the utility model is to solve the problems in the prior art and to provide a bucket elevator deviation detection device that is dust-proof and leak-proof, which has low subsequent maintenance costs and a simple, compact and dust-proof structure.

[0006] To achieve the above-mentioned purpose, the utility model proposes a dust-proof and leak-proof bucket elevator deviation detection device, which includes a dustproof shell, a roller frame, a roller and a proximity switch. The roller frame is elastically swinging and arranged in the dustproof shell. The swinging end of the roller frame is provided with a roller. The roller frame includes a sensed part, and the dustproof shell is provided with a proximity switch for sensing the sensed part.

[0007] Preferably, the roller frame also includes a rotating shaft, two swing arms are provided on the rotating shaft, the connecting ends of the swing arms and the rotating shaft are each provided with a sensed part, a pull rod is provided between the two sensed parts, a connecting seat is provided in the upper end of the dustproof shell, and a tension spring is provided between the connecting seat and the pull rod.

[0008] Preferably, the connecting seat is provided with a hanging ear, and the hanging ear is provided with a hanging hole for hanging a tension spring.

[0009] Preferably, mounting seats are provided on the upper portions of the front and rear side walls of the dustproof shell, and the inner ends of the mounting seats are provided with insertion grooves matching the ends of the rotating shaft.

[0010] Preferably, a proximity switch is provided on the rear side wall of the dustproof shell, and the proximity switch senses a corresponding sensed part.

[0011] Preferably, a mounting hole for the proximity switch to pass through is provided on the rear side wall of the dustproof shell, and the proximity switch is provided with fixing nuts at both ends of the mounting hole.

[0012] Preferably, the dustproof housing includes a connecting flange and a shell provided on the connecting flange.

[0013] The beneficial effects of the utility model are as follows: the utility model arranges the roller frame to swing elastically in the dustproof shell, the swinging end of the roller frame is provided with a roller, the roller frame includes a sensed part, and the dustproof shell is provided with a proximity switch that senses the sensed part. The dustproof shell can effectively prevent the dust or harmful gas inside the elevator from diffusing to the external environment and endangering the health of on-site operators; when the proximity switch is damaged, the proximity switch can be replaced separately, and the subsequent maintenance cost is low; compared with the existing technology, the subsequent maintenance cost is low, and the structure is simple, compact and dustproof.

[0014] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a dust-leakage-proof bucket elevator deviation detection device of the utility model;

[0016] Figure 2 This is a front view of a dust-leakage-proof bucket elevator deviation detection device of the utility model;

[0017] Figure 3 This is a rear view of a dust-leakage-proof bucket elevator deviation detection device of the utility model;

[0018] Figure 4 yes Figure 3 Cross-sectional view of CC.

[0019] In the figure: 1-dustproof shell, 2-roller frame, 3-roller, 4-proximity switch, 5-connecting flange, 6-mounting hole, 7-fixing nut, 8-housing, 9-mounting seat, 10-plug slot, 21-sensed part, 22-rotating shaft, 23-swing arm, 24-pull rod, 25-connecting seat, 26-tension spring, 27-hanging ear, 28-hanging hole. DETAILED DESCRIPTION

[0020] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The utility model is a dust-proof and leak-proof bucket elevator deviation detection device, which includes a dustproof shell 1, a roller frame 2, a roller 3 and a proximity switch 4. The roller frame 2 is elastically swingingly arranged in the dustproof shell 1, and the swinging end of the roller frame 2 is provided with a roller 3. The roller frame 2 includes a sensed part 21, and the dustproof shell 1 is detachably provided with a proximity switch 4 for sensing the sensed part 21.

[0021] The roller frame 2 also includes a rotating shaft 22, two swing arms 23 are provided on the rotating shaft 22, and the connecting ends of the swing arms 23 and the rotating shaft 22 are each provided with a sensed part 21, a pull rod 24 is provided between the two sensed parts 21, a connecting seat 25 is provided in the upper end of the dustproof shell 1, and a tension spring 26 is provided between the connecting seat 25 and the pull rod 24.

[0022] The connecting seat 25 is provided with a hanging ear 27 , and the hanging ear 27 is provided with a hanging hole 28 for hanging the tension spring 26 .

[0023] Mounting seats 9 are provided on the upper portions of the front and rear side walls of the dustproof housing 1 , and the inner ends of the mounting seats 9 are provided with insertion slots 10 that match the ends of the rotating shaft 22 .

[0024] A proximity switch 4 is provided on the rear side wall of the dustproof housing 1 , and the proximity switch 4 senses a corresponding sensed portion 21 .

[0025] A mounting hole 6 for the proximity switch 4 to pass through is provided on the rear side wall of the dustproof shell 1 , and the proximity switch 4 is provided with fixing nuts 7 at both ends of the mounting hole 6 .

[0026] The dustproof housing 1 includes a connecting flange 5 and a shell 8 provided on the connecting flange 5 .

[0027] Working process of this utility model:

[0028] The utility model discloses a dust-proof bucket elevator deviation detection device. During the working process, Figure 4 As shown, when the tape deviates, the edge of the tape touches the roller 3 and forces the roller 3 to move downward, and the roller 3 drives the swing arm 23 to swing downward, and the swing arm 23 drives the sensed part 21 to leave the proximity switch 4, and at the same time stretches the tension spring 26 through the pull rod 24. When the proximity switch 4 loses sensitivity, the proximity switch 4 sends an alarm signal to the PLC controller, and the PLC controller controls the elevator to stop working. When the tape is reset, due to the action of the tension spring, the swing arm 23 is pulled back to its original position, the sensed part 21 is also reset, and the proximity switch 4 is re-sensed and reset.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A dust-proof and leak-proof bucket elevator deviation detection device, characterized by: The invention comprises a dustproof shell (1), a roller frame (2), a roller (3) and a proximity switch (4); the roller frame (2) is elastically swingably arranged in the dustproof shell (1); a roller (3) is provided at the swinging end of the roller frame (2); the roller frame (2) includes a sensed portion (21); and a proximity switch (4) for sensing the sensed portion (21) is detachably provided on the dustproof shell (1).

2. The dust-proof bucket elevator deviation detection device according to claim 1, characterized in that: The roller frame (2) further includes a rotating shaft (22), two swing arms (23) are provided on the rotating shaft (22), and the connecting ends of the swing arms (23) and the rotating shaft (22) are both provided with a sensed portion (21), a pull rod (24) is provided between the two sensed portions (21), a connecting seat (25) is provided in the upper end of the dustproof shell (1), and a tension spring (26) is provided between the connecting seat (25) and the pull rod (24).

3. The dust-leakage-proof bucket elevator deviation detection device according to claim 2, characterized in that: The connecting seat (25) is provided with a hanging ear (27), and the hanging ear (27) is provided with a hanging hole (28) for hanging the tension spring (26).

4. The dust-leakage-proof bucket elevator deviation detection device according to claim 2, characterized in that: The upper portions of the front and rear side walls of the dustproof housing (1) are both provided with mounting seats (9), and the inner ends of the mounting seats (9) are both provided with insertion slots (10) that match the end of the rotating shaft (22).

5. The dust-leakage-proof bucket elevator deviation detection device according to claim 2, characterized in that: A proximity switch (4) is provided on the rear side wall of the dustproof housing (1), and the proximity switch (4) senses a corresponding sensed portion (21).

6. The dust-leakage-proof bucket elevator deviation detection device according to claim 5, characterized in that: A mounting hole (6) for the proximity switch (4) to pass through is provided on the rear side wall of the dustproof housing (1), and the proximity switch (4) is provided with fixing nuts (7) at both ends of the mounting hole (6).

7. A dust-leakage-proof bucket elevator deviation detection device according to any one of claims 1 to 6, characterized in that: The dustproof housing (1) comprises a connecting flange (5) and a shell (8) arranged on the connecting flange (5).

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