Tail wheel structure of bucket elevator

Abstract

The utility model discloses a bucket elevator tail wheel structure, and belongs to the technical field of bucket elevators. The tail wheel structure of the bucket elevator is resistant to abrasion and easy to maintain. According to the technical scheme, the tail wheel comprises a tail wheel main shaft, chain wheels, detachable shaft sleeves, bearings and bearing seats, the two chain wheels are installed in the middle of the tail wheel main shaft in a spaced mode, the two ends of the tail wheel main shaft are provided with cylindrical shaft necks, the shaft necks are sleeved with the detachable shaft sleeves, the two chain wheels are located in an elevator shell, and the two shaft necks extend out of the elevator shell. The bearing is located outside the elevator shell, arranged on the detachable shaft sleeve in a sleeving mode and installed in the bearing seat. The two movable sealing plates are fixed to the two sides of the elevator shell through limiting adjusting bolts, sealing plate shaft seals are arranged on the outer sides of the movable sealing plates, and the detachable and washable shaft sleeves are sleeved with the sealing plate shaft seals. And the shaft neck is in interference fit with the detachable shaft sleeve. The tail wheel of the bucket elevator is used for simplifying the maintenance of the tail wheel of the bucket elevator.

Description

Technical Field

[0001] The utility model discloses a bucket elevator tail wheel structure, belonging to the technical field of bucket elevators. Background Art

[0002] Bucket elevator is a conveying equipment for vertically lifting materials. It has the advantages of simple structure, low maintenance cost, high conveying efficiency, high lifting height, stable operation and wide application range. It is widely used for vertical lifting of various materials.

[0003] In existing bucket elevators, the tailwheel shaft's bearings are tapered and supported by tapered bearings. This structural design initially exhibits good stability and load-bearing capacity, and the bearings are easily installed. However, over time, the lock nut on the outside of the bearing can become loose due to vibration, wear, and other factors. Once loose, the bearing can shift outward, causing movement of the tailwheel shaft and further wear. In these cases, repair work requires the entire tailwheel to be removed and re-welded, which is not only labor-intensive and time-consuming, but also significantly impacts production efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a bucket elevator tail wheel structure that is wear-resistant and easy to maintain.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a bucket elevator tail wheel structure, comprising: a tail wheel main shaft, a sprocket, a detachable shaft sleeve, a bearing, and a bearing seat, wherein two sprockets are installed at intervals in the middle of the tail wheel main shaft, both ends of the tail wheel main shaft have cylindrical shaft necks, and the shaft necks are sheathed with detachable shaft sleeves, the two sprockets are located inside the elevator housing, and both shaft necks extend outside the elevator housing, and the bearings are located outside the elevator housing, sheathed on the detachable shaft sleeves, and installed in the bearing seat;

[0006] Two movable sealing plates are fixed on both sides of the elevator housing through limit adjustment bolts. A sealing plate shaft seal is provided on the outer side of the movable sealing plate, and the sealing plate shaft seal is sleeved on the detachable shaft sleeve.

[0007] Preferably, there is an interference fit between the shaft neck and the detachable shaft sleeve.

[0008] Preferably, the present invention further comprises a thrust washer and a locking nut, and the thrust washer and the locking nut cooperate and are installed on the outside of the bearing.

[0009] Preferably, the inner hole of the bearing is a straight hole, and has an interference fit with the detachable sleeve.

[0010] Preferably, a bearing seat seal is provided between the inner side of the bearing and the inner wall of the bearing seat, and the bearing seat seal is sleeved on the detachable shaft sleeve.

[0011] Preferably, the detachable sleeve is made of wear-resistant material.

[0012] Preferably, the detachable sleeve is made of brass or steel-based alloy.

[0013] Compared with the prior art, the present invention has the following beneficial effects.

[0014] 1. The utility model adds a detachable sleeve made of wear-resistant material, which can effectively protect the tail wheel main shaft from wear even when the bearing is loose. Moreover, there is no need to take out the entire tail wheel for processing and repair welding during maintenance. It is only necessary to replace the detachable sleeve. In addition, the cost of straight hole bearings is also low. Therefore, the utility model simplifies the maintenance process, reduces the maintenance workload, shortens the maintenance cycle, and greatly reduces the downtime of equipment due to maintenance, thereby reducing maintenance costs and improving production efficiency.

[0015] 2. In the present invention, a structure in which a thrust washer and a locking nut cooperate with each other is provided on the outer side of the bearing, which can effectively prevent the axial loosening and displacement of the inner ring of the bearing, thereby improving the stability of the bearing and reducing the failure rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 This is an enlarged view of the main shaft of the tail wheel in the present invention.

[0019] In the figure: 1 is the elevator housing, 2 is the chain, 3 is the hopper, 4 is the tail wheel main shaft, 5 is the sprocket, 6 is the movable sealing plate, 7 is the limit adjustment bolt, 8 is the sealing plate shaft seal, 9 is the bearing seat, 10 is the bearing seat shaft seal, 11 is the detachable sleeve, 12 is the bearing, 13 is the thrust washer, and 14 is the locking nut. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose that can be achieved by the present utility model.

[0022] The present utility model provides the following embodiments.

[0023] like Figure 1 、 Figure 2 As shown, the utility model is a bucket elevator tail wheel structure, including: a tail wheel main shaft 4, a sprocket 5, a detachable shaft sleeve 11, a bearing 12 and a bearing seat 9, two sprockets 5 are installed at a distance in the middle of the tail wheel main shaft 4, both ends of the tail wheel main shaft 4 have cylindrical shaft necks, and the detachable shaft sleeve 11 is sleeved on the outer side of the shaft neck. The two sprockets 5 are located inside the elevator housing 1, and both shaft necks extend outside the elevator housing 1. The bearing 12 is located outside the elevator housing 1, sleeved on the detachable shaft sleeve 11, and installed in the bearing seat 9;

[0024] Two movable sealing plates 6 are fixed to both sides of the elevator housing 1 by limit adjustment bolts 7 . A sealing plate shaft seal 8 is provided on the outer side of the movable sealing plate 6 , and the sealing plate shaft seal 8 is sleeved on a detachable shaft sleeve 11 .

[0025] The shaft neck and the detachable sleeve 11 are in interference fit, which ensures good tightness and centering of the detachable sleeve 11.

[0026] The present invention further comprises a thrust washer 13 and a locking nut 14 , which cooperate and are mounted on the outside of the bearing 12 to prevent the axial loosening and displacement of the bearing inner ring.

[0027] The inner hole of the bearing 12 is a straight hole, and has an interference fit with the detachable sleeve 11. The straight inner hole improves the contact between the bearing 12 and the tail wheel main shaft 4, and is easy to maintain while having a long service life.

[0028] A bearing seat shaft seal 10 is provided between the inner side of the bearing 12 and the inner wall of the bearing seat 9 , and the bearing seat shaft seal 10 is sleeved on a detachable shaft sleeve 11 .

[0029] The detachable shaft sleeve 11 is made of wear-resistant material.

[0030] The detachable shaft sleeve 11 is made of brass or steel-based alloy.

[0031] In the present invention, the sprocket 5 cooperates with the chain 2, the hopper 3 is installed on the chain 2, and the hopper 3 is filled with materials. The hopper 3 is lifted to a high place to unload the materials under the drive of the chain 2, thereby completing the vertical lifting of the materials.

[0032] The utility model provides a removable sleeve 11 between the bearing 12 and the tail wheel main shaft 4, and a thrust washer 13 and a locking nut 14 are provided on the outside of the bearing 12. On the one hand, the thrust washer 13 and the locking nut 14 can effectively prevent the axial loosening and displacement of the inner ring of the bearing, thereby improving the stability of the bearing and the performance of the equipment. On the other hand, after long-term operation, even if the removable sleeve 11 is worn, only the removable sleeve 11 needs to be replaced during maintenance, and there is no need to take out the entire tail wheel for processing and repair welding, which makes maintenance convenient and quick. Thirdly, the inner hole of the bearing 12 is a straight hole, and the shaft necks at both ends of the tail wheel main shaft 4 that cooperate with the bearing 12 are cylindrical. Compared with the original bearing with a tapered inner hole and the tapered design of the shaft neck of the tail wheel main shaft 4, the cost is lower and the replacement is more convenient.

[0033] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A bucket elevator tail wheel structure, characterized in that include: A tail wheel main shaft (4), a sprocket (5), a detachable shaft sleeve (11), a bearing (12) and a bearing seat (9), wherein the two sprockets (5) are installed at intervals in the middle of the tail wheel main shaft (4), both ends of the tail wheel main shaft (4) have cylindrical shaft necks, and the detachable shaft sleeve (11) is sleeved on the outer side of the shaft neck. The two sprockets (5) are located inside the hoist housing (1), and both shaft necks extend outside the hoist housing (1). The bearing (12) is located outside the hoist housing (1), sleeved on the detachable shaft sleeve (11), and installed in the bearing seat (9); Two movable sealing plates (6) are fixed to both sides of the elevator housing (1) through limit adjustment bolts (7). A sealing plate shaft seal (8) is provided on the outer side of the movable sealing plate (6), and the sealing plate shaft seal (8) is sleeved on a detachable shaft sleeve (11).

2. The bucket elevator tail wheel structure according to claim 1, characterized in that: The shaft neck and the detachable shaft sleeve (11) are in interference fit.

3. The bucket elevator tail wheel structure according to claim 1 or 2, characterized in that: It also includes a thrust washer (13) and a locking nut (14). The thrust washer (13) and the locking nut (14) are matched and installed on the outside of the bearing (12).

4. The bucket elevator tail wheel structure according to claim 1 or 2, characterized in that: The inner hole of the bearing (12) is a straight hole, and is interference-fitted with the detachable shaft sleeve (11).

5. The bucket elevator tail wheel structure according to claim 1 or 2, characterized in that: A bearing seat shaft seal (10) is provided between the inner side of the bearing (12) and the inner wall of the bearing seat (9), and the bearing seat shaft seal (10) is sleeved on a detachable shaft sleeve (11).

6. The bucket elevator tail wheel structure according to claim 1 or 2, characterized in that: The detachable shaft sleeve (11) is made of wear-resistant material.

7. The bucket elevator tail wheel structure according to claim 6, characterized in that: The detachable shaft sleeve (11) is made of brass or steel-based alloy.

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