A device for detecting deformation of a hoist hopper

Abstract

This utility model discloses a detection device for the deformation of a hoist bucket, including a rotating shaft, a dial plate, a sensing plate, a proximity switch, and a return spring. The rotating shaft is rotatably mounted on the hoist housing, and the dial plate is mounted on the rotating shaft. The sensing plate is mounted at one end of the rotating shaft, and the upper end of the sensing plate is connected to the housing via the return spring. The housing is equipped with a proximity switch for sensing the lower end of the sensing plate. Compared with the prior art, this device can accurately detect the deformation of the hoist bucket, significantly improve the reliability of equipment operation, reduce downtime losses, and is suitable for intelligent transformation of various continuous conveying scenarios.

Description

Technical Field

[0001] This utility model relates to the technical field of elevators, and in particular to the technical field of a device for detecting deformation of elevator buckets. Background Technology

[0002] Bucket elevators are typically used for lifting materials from low to high places. The material is fed into the bucket via a vibrating table, and the machine automatically and continuously transports it upwards.

[0003] A bucket elevator consists of buckets, a drive unit, top and bottom rollers (or sprockets), a belt (or traction chain), a tensioning device, and a casing. The buckets scoop up material from the storage below, and as the conveyor belt or chain lifts it to the top, it flips down after passing over the top wheel, and the bucket elevator pours the material into the receiving trough. Belt-driven bucket elevators typically use rubber belts, mounted on the lower or upper drive rollers and the upper and lower idler rollers. Chain-driven bucket elevators generally have two parallel drive chains, with a pair of drive sprockets at the top or bottom and a pair of idler sprockets at the bottom or top.

[0004] Bucket elevators are important material conveying equipment in industrial production. Their buckets are prone to deformation due to material impact, wear, and scraping of the machine casing during long-term operation. If the deformation of the buckets is not detected in time, it may lead to material spillage, equipment imbalance, or even safety accidents. Therefore, designing an efficient and accurate bucket deformation detection device is of great significance to ensuring the safe and stable operation of the elevator. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a detection device for the deformation of the bucket of a hoist. This device can accurately detect the deformation of the bucket, significantly improve the reliability of equipment operation, reduce downtime losses, and is suitable for the intelligent transformation of various continuous conveying scenarios.

[0006] To achieve the above objectives, this utility model proposes a detection device for the deformation of a hoist bucket, comprising a rotating shaft, a dial plate, a sensing plate, a proximity switch, and a return spring. The rotating shaft is rotatably mounted on the hoist housing, and the dial plate is mounted on the rotating shaft. The sensing plate is mounted at one end of the rotating shaft, and the upper end of the sensing plate is connected to the housing via the return spring. The proximity switch is mounted on the housing to sense the lower end of the sensing plate.

[0007] Preferably, both ends of the rotating shaft are rotatably mounted on the corresponding side walls of the housing via bearing seats.

[0008] Preferably, the housing is provided with a limiting block, which blocks the lower front side of the sensing plate.

[0009] Preferably, the housing is provided with a bracket, the upper end of the bracket is provided with a groove that mates with the proximity switch, and the proximity switch is provided with two fastening nuts threaded in, the two fastening nuts being located on the front and rear sides of the groove respectively.

[0010] Preferably, the device also includes a locking mechanism to prevent the fastening nut from loosening. The locking mechanism includes a connecting body and two C-shaped elastic clips respectively disposed at both ends of the connecting body. The C-shaped elastic clips are locked onto the proximity switch.

[0011] Preferably, the housing is provided with a connecting seat, and the connecting seat is provided with a through hole for hanging a return spring.

[0012] Preferably, the rotating shaft is provided with two supports, each of which is provided with a screw body. The dial plate is provided with a waist-shaped hole that corresponds to and cooperates with the screw body. The screw body passes through the corresponding waist-shaped hole and is provided with a lock nut. The dial plate is pressed and fixed on the support by the lock nut.

[0013] The beneficial effects of this utility model are as follows: This utility model rotates a shaft onto the housing of the elevator, with a lever plate on the shaft. One end of the shaft is equipped with a sensing plate, and the upper end of the sensing plate is connected to the housing via a return spring. A proximity switch is provided on the housing to sense the lower end of the sensing plate. Compared with the prior art, this utility model can accurately detect the deformation of the elevator bucket, significantly improve the reliability of equipment operation, reduce downtime losses, and is suitable for intelligent transformation of various continuous conveying scenarios.

[0014] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a detection device for detecting deformation of a bucket in a hoist, based on the present invention, showing the detection of intermediate deformation in the bucket.

[0016] Figure 2 This is a schematic diagram of a detection device for detecting unilateral deformation of a bucket in a hoist, according to the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of a detection device for deformation of a hoist hopper according to the present invention;

[0018] Figure 4 This is a top view of a device for detecting deformation of a bucket in a hoist, according to the present invention.

[0019] Figure 5 This is a schematic diagram of the proximity switch installation.

[0020] In the diagram: 1-rotating shaft, 2-dial plate, 3-sensor plate, 4-proximity switch, 5-reset spring, 6-housing, 7-limiting block, 8-bracket, 9-groove, 10-fastening nut, 11-connecting seat, 12-hanging ring, 13-clamp, 14-support, 15-screw body, 16-waist-shaped hole, 17-anti-loosening nut, 18-bearing seat, 131-connecting body, 132-C-shaped elastic clip. Detailed Implementation

[0021] See Figure 3 , Figure 4 and Figure 5 This utility model discloses a detection device for the deformation of a bucket in a hoist, comprising a rotating shaft 1, a dial plate 2, a sensing plate 3, a proximity switch 4, and a return spring 5. The rotating shaft 1 is rotatably mounted on the housing 6 of the hoist. The dial plate 2 is mounted on the rotating shaft 1. The sensing plate 3 is mounted at one end of the rotating shaft 1. The upper end of the sensing plate 3 is connected to the housing 6 via the return spring 5. The proximity switch 4 is mounted on the housing 6 to sense the lower end of the sensing plate 3.

[0022] Both ends of the rotating shaft 1 are rotatably mounted on the corresponding side walls of the housing 6 via bearing seats 18.

[0023] The housing 6 is provided with a limiting block 7, which blocks the lower front side of the sensing plate 3.

[0024] The housing 6 is provided with a bracket 8. The upper end of the bracket 8 is provided with a groove 9 that cooperates with the proximity switch 4. The proximity switch 4 is provided with two fastening nuts 10 threadedly, and the two fastening nuts 10 are located on the front and rear sides of the groove 9 respectively.

[0025] It also includes a locking element 13 to prevent the fastening nut 10 from loosening. The locking element 13 includes a connecting body 131 and two C-shaped elastic clips 132 respectively provided at both ends of the connecting body 131. The C-shaped elastic clips 132 are locked onto the proximity switch 4.

[0026] The housing 6 is provided with a connecting seat 11, and the connecting seat 11 is provided with a hanging ring 12 for the reset spring 5 to be hung on.

[0027] The rotating shaft 1 is provided with two supports 14, each of which is provided with a screw body 15. The dial plate 2 is provided with a waist-shaped hole 16 that corresponds to and cooperates with the screw body 15. The screw body 15 passes through the corresponding waist-shaped hole 16 and is provided with a lock nut 17. The dial plate 2 is pressed and fixed on the support 14 by the lock nut 17.

[0028] The working process of this utility model:

[0029] This utility model discloses a device for detecting deformation of a bucket in a hoist. Under normal operating conditions, the limit block 7 and the reset spring 5 keep the lever 2 horizontal. The sensing plate 3 and the proximity switch 4 are in a detection reset state (i.e., the proximity switch is in the sensing state and the switch is open). The distance between the lever 2 and the front edge of the bucket is set to approximately 25mm. If the bucket deforms (e.g., ...), the device will detect the deformation. Figure 1 intermediate deformation or such Figure 2 (Due to the unilateral deformation), the front edge of the hopper contacts the deflector plate 2. The deflector plate 2 is pushed upward by the deformed hopper. The deflector plate 2 drives the sensing plate 3 to rotate through the rotating shaft 1. The sensing plate 3 leaves the sensing area of ​​the proximity switch 4. The proximity switch 4 can no longer sense the sensing plate 3. The internal switch node of the proximity switch 4 is reset (i.e. closed). Thus, the proximity switch 4 sends a signal to the PLC controller of the hoist. The PLC controller controls the alarm to sound and cuts off the power supply to the hoist motor to force a stop and prevent a larger accident from occurring.

[0030] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A device for detecting deformation of a hoist hopper, characterized by: The device includes a rotating shaft (1), a dial plate (2), a sensing plate (3), a proximity switch (4), and a return spring (5). The rotating shaft (1) is rotatably mounted on the housing (6) of the hoist. The dial plate (2) is mounted on the rotating shaft (1). The sensing plate (3) is mounted on one end of the rotating shaft (1). The upper end of the sensing plate (3) is connected to the housing (6) through the return spring (5). The proximity switch (4) is mounted on the housing (6) to sense the lower end of the sensing plate (3).

2. The detection device for deformation of a hoist bucket as described in claim 1, characterized in that: Both ends of the rotating shaft (1) are rotatably mounted on the corresponding side walls of the housing (6) via bearing seats (18).

3. A device for detecting deformation of a hoist hopper as defined in claim 1, wherein: The housing (6) is provided with a limiting block (7), which blocks the lower front side of the sensing plate (3).

4. A device for detecting deformation of a hoist hopper as defined in claim 1, wherein: The housing (6) is provided with a bracket (8), and the upper end of the bracket (8) is provided with a groove (9) that cooperates with the proximity switch (4). The proximity switch (4) is provided with two fastening nuts (10) threadedly engaged, and the two fastening nuts (10) are located on the front and rear sides of the groove (9) respectively.

5. A device for detecting deformation of a hoist hopper as defined in claim 4, wherein: It also includes a clip (13) to prevent the fastening nut (10) from loosening. The clip (13) includes a connector (131) and two C-shaped elastic clips (132) respectively located at both ends of the connector (131). The C-shaped elastic clips (132) are attached to the proximity switch (4).

6. A device for detecting deformation of a hoist hopper as defined in claim 1, wherein: The housing (6) is provided with a connecting seat (11), and the connecting seat (11) is provided with a hanging ring (12) for the reset spring (5) to be hung.

7. A device for detecting deformation of a hoist hopper as claimed in any one of claims 1 to 6, characterised in that: The rotating shaft (1) is provided with two supports (14), each of which is provided with a screw body (15). The dial plate (2) is provided with a waist-shaped hole (16) that corresponds to and cooperates with the screw body (15). The screw body (15) passes through the corresponding waist-shaped hole (16) and is provided with a lock nut (17). The dial plate (2) is pressed and fixed on the support (14) by the lock nut (17).

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