Anti-inversion device of bucket elevator

Abstract

The utility model discloses an anti-inversion device of a bucket elevator, which relates to the technical field of bucket elevators and comprises an elevator main body and a driving device mounted on the elevator main body. An anti-reversing assembly used for preventing the conveying chain from reversing is arranged on the side, away from the driving device, of the elevator body. When the chain wheel shaft rotates, the ratchet wheel is synchronously driven to rotate, helical teeth of the ratchet wheel interact with the tooth blocking block, the tooth blocking block is pushed to move along the helical teeth of the ratchet wheel, normal operation of the ratchet wheel and the conveying chain is allowed, and smoothness of the conveying chain during forward operation is guaranteed. When the chain wheel rotates reversely, the chain wheel shaft drives the ratchet wheel to rotate reversely, at the moment, the tooth blocking block is clamped on oblique teeth of the ratchet wheel, rotation of the ratchet wheel is prevented, reverse rotation of the conveying chain is effectively limited, and the risks of material backflow and equipment damage are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to bucket elevator technical field especially relates to a bucket elevator anti-reversing device. BACKGROUND

[0002] Bucket elevator is quite widely used in actual production, and is everywhere in the fields of building, cement and mine, and the like. Such elevator has less requirement on the characteristics of materials, can not only lift general powdery and small granular materials, but also can lift materials with larger friction, has good sealing property and less environmental pollution.

[0003] However, when the bucket elevator is working normally, the material is scooped up in one side of the bucket, and the other side of the bucket is empty. If the elevator is working and power failure or shutdown due to equipment failure occurs, and there is material in the bucket, the one side of the bucket will be overweight, the elevator will be reversed, and great trouble will be brought to production and equipment. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem of the existing bucket elevator reversing when stopping working, and provides a bucket elevator anti-reversing device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a driving device is installed on the bucket elevator main body, a conveying chain for lifting and conveying materials is installed in the bucket elevator main body, and an anti-reversing assembly for preventing the conveying chain from reversing is arranged on the side of the bucket elevator main body away from the driving device.

[0006] Chain wheels are installed on the inner walls of the bucket elevator main body near the feeding port and the discharging port, the conveying chain is sleeved on the two chain wheels, the output end of the driving device is connected with one of the chain wheels through a shaft coupling, and the side of the chain wheel away from the driving device is fixed with the anti-reversing assembly.

[0007] Preferably, the anti-reversing assembly comprises a ratchet wheel, a synchronous shaft is fixedly connected to the ratchet wheel, the synchronous shaft is rotatably connected to the bucket elevator main body, one end of the synchronous shaft away from the ratchet wheel penetrates through the bucket elevator main body and extends to the inside of the bucket elevator main body, and the extension end of the synchronous shaft is fixed with the adjacent chain wheel in the bucket elevator main body.

[0008] Preferably, the anti-reversing assembly further comprises a round shaft and a tooth block, the round shaft is installed on the side of the bucket elevator main body near the ratchet wheel, and the round shaft is installed above the ratchet wheel, the tooth block is rotatably connected to the round shaft, and the tooth block is clamped with the adjacent inclined teeth on the ratchet wheel.

[0009] Preferably, a fixing rod is further installed on one side of the round shaft, a return spring is installed on the fixing rod, and the other end of the return spring is fixed with the tooth block.

[0010] Preferably, the round shaft is further provided with a needle pin for preventing the tooth block from falling off, and a gasket is arranged between the tooth block and the needle pin.

[0011] Preferably, the direction of the inclined teeth of the ratchet wheel is the same as the running direction of the conveying chain in the main body of the elevator.

[0012] Preferably, a support plate is installed on the side wall of the main body of the elevator, and the driving device is installed on the support plate.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1. In the utility model, when the chain wheel shaft rotates, the ratchet wheel is driven to rotate synchronously, the inclined teeth of the ratchet wheel interact with the tooth block, the tooth block is pushed to move along the inclined teeth of the ratchet wheel, thereby allowing the normal rotation of the ratchet wheel and the conveying chain, and the design ensures the smoothness of the conveying chain when running in the forward direction and provides a basis for preventing reverse rotation.

[0015] 2. In the utility model, when the conveying chain reverses due to some reason, the chain wheel shaft drives the ratchet wheel to rotate reversely, at this time, the tooth block is clamped on the inclined teeth of the ratchet wheel, thereby preventing the rotation of the ratchet wheel, the mechanical locking mechanism effectively limits the reverse rotation of the conveying chain, reduces the risk of material backflow and equipment damage, and guarantees the safety of the operator and the stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the bucket elevator anti-reversing device is provided for the utility model;

[0017] Figure 2 A second perspective view schematic diagram of the bucket elevator anti-reversing device is provided for the utility model;

[0018] Figure 3 A structure schematic diagram of the anti-reversing assembly (3) in the bucket elevator anti-reversing device is provided for the utility model;

[0019] Figure 4 A structure schematic diagram of the anti-reversing assembly (3) in the bucket elevator anti-reversing device is provided for the utility model;

[0020] Legend: 1, main body of the elevator; 11, support plate; 2, driving device; 3, anti-reversing assembly; 31, ratchet wheel; 32, round shaft; 33, tooth block; 34, gasket; 35, fixed rod; 36, return spring; 37, needle pin. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. Example 1

[0023] like Figures 1-4 As shown, the utility model provides an anti-reversal device for a bucket elevator, comprising an elevator body 1 and a driving device 2 installed on the elevator body 1, a conveyor chain for lifting and conveying materials is installed in the elevator body 1, an anti-reversal component 3 for preventing the conveyor chain from reversing is provided on the side of the elevator body 1 away from the driving device 2, sprocket shafts are installed on the inner wall of the elevator body 1 near the feed port and the discharge port, the conveyor chain is sleeved on the two sprocket shafts, the output end of the driving device 2 is connected to one of the sprocket shafts through a coupling, and the side of the sprocket shaft away from the driving device 2 is fixed to the anti-reversal component 3, a support plate 11 is installed on the side wall of the elevator body 1, and the driving device 2 is installed on the support plate 11;

[0024] Specifically, when in use, the driving device 2 is started, and the conveying chain in the elevator body 1 is driven to rotate by the driving device 2. When the conveying chain is running, the material enters through the feed port and is lifted upward by the action of the conveying chain and discharged through the discharge port;

[0025] When the driving device 2 fails or stops, the anti-reversal component 3 can prevent the conveyor chain from reversing, avoiding further damage to the equipment;

[0026] In this embodiment, the anti-reversal assembly 3 includes a ratchet 31, a synchronous shaft is fixedly connected to the ratchet 31, the synchronous shaft is rotatably connected to the hoist body 1, and the end of the synchronous shaft away from the ratchet 31 passes through the hoist body 1 and extends to the inside of the hoist body 1, the extended end of the synchronous shaft is fixed to the adjacent sprocket shaft in the hoist body 1, the anti-reversal assembly 3 also includes a round shaft 32 and a tooth block 33, the round shaft 32 is installed on the side of the hoist body 1 close to the ratchet 31, and the round shaft 32 is installed on the ratchet 31. Above the gear block 33, the gear block 33 is rotatably connected to the circular shaft 32, and the gear block 33 is engaged with the adjacent helical teeth on the ratchet 31. A fixing rod 35 is also installed on one side of the circular shaft 32, and a return spring 36 is installed on the fixing rod 35. The other end of the return spring 36 is fixed to the gear block 33. A needle pin 37 for preventing the gear block 33 from falling off is also provided on the circular shaft 32. A gasket 34 is provided between the gear block 33 and the needle pin 37. The direction of the helical teeth on the ratchet 31 is the same as the running direction of the conveyor chain in the elevator body 1;

[0027] Specifically, when the driving device 2 operates normally, the driving device 2 drives one of the sprocket shafts to rotate, and drives the other sprocket shaft to rotate through the conveyor chain, so that the conveyor chain runs on the two sprocket shafts to transport the material;

[0028] When the sprocket shaft rotates, the synchronous shaft fixed to the sprocket shaft rotates synchronously under the action of the sprocket shaft, and drives the ratchet 31 to rotate. Since the direction of the helical teeth on the ratchet 31 is the same as the running direction of the conveyor chain, when the ratchet 31 rotates, the helical teeth of the ratchet 31 continuously push the tooth block 33, and the tooth block 33 passes the ratchet 31, so that the ratchet 31 can rotate, so that the conveyor chain can operate normally;

[0029] When the conveyor chain runs in the reverse direction, the sprocket shaft rotates in the reverse direction under the action of the conveyor chain, and at the same time drives the ratchet 31 to rotate in the reverse direction. The tooth block 33 is stuck on the helical teeth on the ratchet 31, so that the ratchet 31 cannot rotate, thereby limiting the rotation of the conveyor chain and preventing the conveyor chain from reversing.

[0030] By means of the provided fixing rod 35 and reset spring 36, when the ratchet 31 pushes the tooth block 33, the tooth block 33 rotates outward along the circular shaft 32 and slides across the surface of the ratchet 31, and at the same time the reset spring 36 is stretched. When the ratchet 31 continues to rotate, the upper and lower helical teeth of the ratchet 31 rotate to the bottom of the tooth block 33. At this time, under the action of the rebound force of the reset spring 36, the tooth block 33 rotates and resets along the circular shaft 32, and continues to contact with the helical teeth. The fixing rod 35 and reset spring 36 ensure that the tooth block 33 and the ratchet 31 always maintain contact.

[0031] The use method and working principle of this device are as follows: When in use, the driving device 2 is started, and the conveying chain in the elevator body 1 is driven by the driving device 2 to rotate. When the conveying chain is running, the material enters through the feed port and is lifted upward by the action of the conveying chain and discharged through the discharge port;

[0032] When the sprocket shaft rotates, the synchronous shaft drives the ratchet 31 to rotate under the action of the sprocket shaft. When the ratchet 31 rotates, the helical teeth of the ratchet 31 continuously push the tooth block 33. The tooth block 33 passes over the ratchet 31, allowing the ratchet 31 to rotate, so that the conveyor chain can operate normally.

[0033] When the conveyor chain runs in the reverse direction, the sprocket shaft rotates in the reverse direction under the action of the conveyor chain, and at the same time drives the ratchet 31 to rotate in the reverse direction. The tooth block 33 is stuck on the helical teeth on the ratchet 31, making the ratchet 31 unable to rotate, thereby limiting the rotation of the conveyor chain and preventing the conveyor chain from reversing.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A bucket elevator anti-reversal device, comprising an elevator body (1) and a driving device (2) mounted on the elevator body (1), characterized in that: A conveyor chain for lifting and conveying materials is installed in the elevator body (1), and an anti-reversal component (3) for preventing the conveyor chain from reversing is provided on a side of the elevator body (1) away from the driving device (2); Sprocket shafts are installed on the inner walls of the elevator body (1) near the feed port and the discharge port, and the conveying chain is sleeved on the two sprocket shafts. The output end of the driving device (2) is connected to one of the sprocket shafts through a coupling, and the side of the sprocket shaft away from the driving device (2) is fixed to the anti-reversal component (3).

2. The anti-reversal device for a bucket elevator according to claim 1, characterized in that: The anti-reversal assembly (3) comprises a ratchet (31), a synchronous shaft is fixedly connected to the ratchet (31), the synchronous shaft is rotatably connected to the elevator body (1), and an end of the synchronous shaft away from the ratchet (31) passes through the elevator body (1) and extends into the interior of the elevator body (1), and the extended end of the synchronous shaft is fixed to the adjacent sprocket shaft in the elevator body (1).

3. The anti-reversal device for a bucket elevator according to claim 2, characterized in that: The anti-reversal assembly (3) further comprises a circular shaft (32) and a tooth block (33), wherein the circular shaft (32) is mounted on a side of the elevator body (1) close to the ratchet (31), and the circular shaft (32) is mounted above the ratchet (31), and the tooth block (33) is rotatably connected to the circular shaft (32), and the tooth block (33) is engaged with adjacent helical teeth on the ratchet (31).

4. The anti-reversal device for a bucket elevator according to claim 3, characterized in that: A fixing rod (35) is also installed on one side of the circular shaft (32), and a return spring (36) is installed on the fixing rod (35), and the other end of the return spring (36) is fixed to the stop gear block (33).

5. The anti-reversal device for a bucket elevator according to claim 4, characterized in that: The circular shaft (32) is also provided with a needle pin (37) for preventing the tooth block (33) from falling off, and a gasket (34) is provided between the tooth block (33) and the needle pin (37).

6. The anti-reversal device for a bucket elevator according to claim 2, characterized in that: The direction of the helical teeth on the ratchet wheel (31) is the same as the running direction of the conveying chain in the elevator body (1).

7. The anti-reversal device for a bucket elevator according to claim 1, characterized in that: A support plate (11) is installed on the side wall of the elevator body (1), and the driving device (2) is installed on the support plate (11).

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