Chain wheel bearing device of scraper conveyor for conveying light calcined magnesia

Abstract

The utility model discloses a scraper conveyor chain wheel bearing device for conveying light calcined magnesia, which comprises a conveying box body, a through shaft is arranged in the conveying box body along the width direction of the conveying box body, two ends of the through shaft respectively penetrate out of the side vertical surfaces of the conveying box body, two outer side vertical surfaces of the conveying box body are respectively provided with a bearing, and the through shaft is provided with a chain wheel. The two ends of the through shaft are assembled in the two bearings respectively, a locking component is installed on the end portion of the through shaft, and the bearings are connected with the end portion of the through shaft through the locking component. The bearings are arranged outside the conveying box body, so that the bearings can be prevented from being in contact with material dust, the situation that the bearings are clamped due to lubrication failure is avoided, the problem of hard abrasion between the chain wheel and the chain is effectively solved, and the overall service life of the scraper conveyor is remarkably prolonged; by arranging the fastening screw and the pressing plate, axial movement of the through shaft can be avoided, meanwhile, the bearing can be overhauled and maintained in a non-stop state, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder material transportation, and is specifically a sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide. Background Art

[0002] Scraper conveyor conveys materials in a sealed box, using wear-resistant scrapers as transmission components to drive materials to move along the sealed box. It is a commonly used equipment for conveying bulk materials such as powdery particles and small blocks. It has the advantages of dust prevention, long conveying distance, improved labor efficiency and reduced labor intensity.

[0003] When the existing scraper conveyor is conveying powdered light-burned magnesium oxide, the powdered material easily invades the bearing, causing the bearing to rotate poorly or even get stuck, resulting in the sprocket being blocked. During the scraper turning process, the transmission chain and the sprocket are in hard contact and rubbed against each other, causing serious wear of the sprocket and chain, and greatly reducing their service life. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to provide a sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide, which can avoid direct contact between the bearing and the dust of the conveyed material and is easy to maintain and inspect.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a sprocket bearing device of a scraper conveyor for conveying light-burned magnesium oxide, comprising a conveying box body, a through shaft is arranged in the conveying box body along its width direction, two ends of the through shaft respectively pass through the side facades of the conveying box body, bearings are installed on the two outer facades of the conveying box body, the two ends of the through shaft are respectively assembled in the two bearings, locking components are installed on the ends of the through shaft, and the bearings are connected to the ends of the through shaft through the locking components.

[0006] In the above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesia, one end of the locking component is connected to the end of the through shaft, and the other end of the locking component is pressed against the inner ring of the bearing.

[0007] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide, the locking component is a fastening screw, a threaded hole is opened on the end of the through shaft, the front end of the fastening screw is threadedly connected in the threaded hole, and the tail end of the fastening screw is pressed against the inner ring of the bearing.

[0008] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide has a pressure plate attached to the end surface of the inner ring of the bearing, the outer diameter of the pressure plate is smaller than the outer diameter of the inner ring of the bearing, and the fastening screw passes through the pressure plate and is threadedly connected in the threaded hole.

[0009] In the above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide, a bearing base is fixedly connected to the outer vertical surface of the conveying box body, and the bearing is fixedly connected to the bearing base through a bearing seat.

[0010] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide, the outer vertical surface of the conveying box body is fixedly connected with a fixing plate by screws, the end of the through shaft passes through the side vertical surface of the conveying box body and the fixing plate in sequence, and the through shaft is rotatably matched with the conveying box body and the fixing plate.

[0011] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesia has mounting bosses arranged near both ends of the through shaft, the mounting bosses are located in the conveying box, and sprockets are drivingly connected to the two mounting bosses.

[0012] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide, the axial length of the mounting boss is equal to the axial length of the sprocket; a keyway is opened on the mounting boss along its axial direction, and a keyway is also opened on the inner hole wall of the sprocket along its axial direction, a key bar is installed in the keyway on the mounting boss, the sprocket is installed on the mounting boss and the key bar is inserted into the keyway on the sprocket.

[0013] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide has an outer diameter of 40 mm for the through shaft, an outer diameter of 50 mm for the mounting boss, an inner hole diameter of 50 mm for the sprocket, a length of 58 mm for the mounting boss, a depth of the keyway on the mounting boss and a depth of the keyway on the sprocket both of 4 mm and a width of 10 mm.

[0014] The above-mentioned scraper conveyor sprocket bearing device for conveying light-burned magnesium oxide, the distance from the end face of one end of the through shaft to the end face of the adjacent mounting boss is 72mm, and the spacing between the two mounting bosses is 249mm; the bearing is a deep groove ball bearing, the inner diameter of the bearing is 40mm, and the outer diameter is 100mm; the width of the conveying box is 410mm, and the distance from the through shaft axis to the bottom wall of the conveying box is 288mm; the outer diameter of the contact surface between the sprocket and the chain is 114mm, the outer diameter of the sprocket rib is 140mm, and the thickness of the ribs on both sides of the sprocket is 6mm.

[0015] The technical solution of the utility model has achieved the following beneficial technical effects:

[0016] By arranging the bearing outside the conveying box, it is possible to avoid contact between the bearing and material dust, and to prevent the bearing from getting stuck due to lubrication failure, effectively solving the problem of hard wear between the sprocket and the chain, and significantly improving the overall service life of the scraper conveyor; by setting fastening screws and pressure plates, it is possible to avoid axial movement of the through shaft, and at the same time, the bearing can be inspected and maintained without stopping the machine, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the through shaft of the utility model;

[0019] Figure 3 A schematic structural diagram of a sprocket of the utility model.

[0020] The reference numerals in the figure are as follows: 1-conveying box; 2-through shaft; 21-mounting boss; 3-sprocket; 4-bearing base; 5-bearing; 6-pressure plate; 7-threaded hole; 8-fastening screw; 9-fixing plate. DETAILED DESCRIPTION

[0021] The sprocket bearing device of the scraper conveyor for conveying light-burned magnesium oxide in this embodiment is as follows: Figure 1 As shown, it includes a conveying box 1, in which a through shaft 2 is arranged along the width direction thereof, and both ends of the through shaft 2 respectively pass through the side elevations of the conveying box 1, and bearings 5 ​​are installed on the two outer elevations of the conveying box 1, and both ends of the through shaft 2 are respectively assembled in the two bearings 5, and locking components are installed on the ends of the through shaft 2, and the bearing 5 is connected to the end of the through shaft 2 through the locking component. By arranging the bearing outside the conveying box 1, it is possible to avoid the contact between the bearing 5 and the material dust, and to avoid the bearing 5 from getting stuck due to lubrication failure, thereby effectively solving the problem of hard wear between the sprocket 3 and the chain, and significantly improving the overall service life of the scraper conveyor.

[0022] like Figure 1As shown, one end of the locking component is connected to the end of the through shaft 2, and the other end of the locking component is pressed against the inner ring of the bearing 5; the locking component is a fastening screw 8, and a threaded hole 7 is opened on the end of the through shaft 2, the front end of the fastening screw 8 is threadedly connected in the threaded hole 7, and the tail end of the fastening screw 8 is pressed against the inner ring of the bearing 5; a pressure plate 6 is attached to the end surface of the inner ring of the bearing 5, and the outer diameter of the pressure plate 6 is smaller than the outer diameter of the inner ring of the bearing 5, and the fastening screw 8 is threadedly connected in the threaded hole 7 after passing through the pressure plate 6. By arranging the fastening screw 8 and the pressure plate 6, the axial movement of the through shaft 2 can be avoided, and at the same time, the bearing 5 can be inspected and maintained without stopping the machine, thereby improving work efficiency.

[0023] like Figure 1 As shown, a bearing base 4 is fixedly connected to the outer vertical surface of the conveying box 1, and the bearing 5 is fixedly connected to the bearing base 4 through a bearing seat; a fixing plate 9 is fixedly connected to the outer vertical surface of the conveying box 1 through screws, and the end of the through shaft 2 passes through the side vertical surface of the conveying box 1 and the fixing plate 9 in turn, and the through shaft 2 rotates with the conveying box 1 and the fixing plate 9. The fixing plate 9 can strengthen the local strength of the conveying box 1 and improve its service life, and when the bearing 5 needs to be replaced or maintained, it can play a role of temporary support, realize non-stop operation, and improve transportation efficiency.

[0024] like Figure 2 As shown, mounting bosses 21 are provided on the through shaft 2 near both ends, the mounting bosses 21 are located in the conveying box 1, and the two mounting bosses 21 are both drivingly connected with sprockets 3, a keyway is provided on the mounting boss 21 along its axial direction, and a keyway is also provided on the inner hole wall of the sprocket 3 along its axial direction, a key bar is installed in the keyway on the mounting boss 21, the sprocket 3 is installed on the mounting boss 21 and the key bar is inserted into the keyway on the sprocket 3, the sprocket 3 is installed on the mounting boss 21 using the key bar connection, the sprocket 3 is installed on the mounting boss 21 after heating, and the sprocket 3 is tightly matched with the mounting boss 21 after cooling.

[0025] The axial length of the mounting boss 21 is equal to the axial length of the sprocket 3. In this embodiment, the outer diameter of the through shaft 2 is 40 mm, the outer diameter of the mounting boss 21 is 50 mm, the inner hole diameter of the sprocket 3 is 50 mm, the length of the mounting boss 21 is 58 mm, the depth of the keyway on the mounting boss 21 and the depth of the keyway on the sprocket 3 are both 4 mm, and the width is 10 mm. The distance from one end face of the through shaft 2 to the end face close to the mounting boss 21 is 72 mm, and the distance from one end of the mounting boss 21 close to the inner side elevation of the conveying box 1 to the conveying box 1 is 10 mm. The distance between the inner side elevation of the conveying box 1 is 10mm, the distance between the bearing 5 and the outer side elevation of the conveying box 1 is 15mm, the distance between the two mounting bosses 21 is 249mm, the bearing 5 is a deep groove ball bearing 5, the inner diameter of the bearing 5 is 40mm and the outer diameter is 100mm; the width of the conveying box 1 is 410mm, and the distance from the axis of the through shaft 2 to the inner bottom wall of the conveying box 1 is 288mm; the outer diameter of the contact surface between the sprocket 3 and the chain is 114mm, the outer diameter of the rib of the sprocket 3 is 140mm, and the thickness of the ribs on both sides of the sprocket 3 is 6mm.

[0026] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide, comprising a conveying box (1), characterized in that: A through shaft (2) is arranged inside the conveying box (1) along its width direction, and the two ends of the through shaft (2) respectively pass through the side elevation of the conveying box (1), and bearings (5) are installed on the two outer side elevations of the conveying box (1), and the two ends of the through shaft (2) are respectively assembled in the two bearings (5), and locking components are installed on the ends of the through shaft (2), and the bearings (5) are connected to the ends of the through shaft (2) through the locking components.

2. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 1, characterized in that: One end of the locking component is connected to the end of the through shaft (2), and the other end of the locking component is pressed against the inner ring of the bearing (5).

3. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 2, characterized in that: The locking component is a fastening screw (8), a threaded hole (7) is provided on the end of the through shaft (2), the front end of the fastening screw (8) is threadedly connected in the threaded hole (7), and the rear end of the fastening screw (8) is pressed against the inner ring of the bearing (5).

4. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 3, characterized in that: A pressure plate (6) is attached to the end surface of the inner ring of the bearing (5), the outer diameter of the pressure plate (6) is smaller than the outer diameter of the inner ring of the bearing (5), and the fastening screw (8) passes through the pressure plate (6) and is threadedly connected in the threaded hole (7).

5. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 1, characterized in that: A bearing base (4) is fixedly connected to the outer vertical surface of the conveying box body (1), and the bearing (5) is fixedly connected to the bearing base (4) via a bearing seat.

6. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 1, characterized in that: A fixing plate (9) is fixedly connected to the outer side surface of the conveying box (1) by means of screws, and the end of the through shaft (2) passes through the side surface of the conveying box (1) and the fixing plate (9) in sequence, and the through shaft (2) is rotatably matched with the conveying box (1) and the fixing plate (9).

7. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to any one of claims 1 to 6, characterized in that: Mounting bosses (21) are provided at positions close to both ends of the through shaft (2); the mounting bosses (21) are located inside the conveying box (1); and sprocket wheels (3) are drivingly connected to the two mounting bosses (21).

8. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesia according to claim 7, characterized in that: The axial length of the mounting boss (21) is equal to the axial length of the sprocket (3); a keyway is provided on the mounting boss (21) along its axial direction, and a keyway is also provided on the inner hole wall of the sprocket (3) along its axial direction, a key bar is installed in the keyway on the mounting boss (21), the sprocket (3) is mounted on the mounting boss (21) and the key bar is inserted into the keyway on the sprocket (3).

9. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesium oxide according to claim 8, characterized in that: The outer diameter of the through shaft (2) is 40 mm, the outer diameter of the mounting boss (21) is 50 mm, the inner hole diameter of the sprocket (3) is 50 mm, the length of the mounting boss (21) is 58 mm, the depth of the keyway on the mounting boss (21) and the depth of the keyway on the sprocket (3) are both 4 mm, and the width is both 10 mm.

10. A sprocket bearing device for a scraper conveyor for conveying light-burned magnesia according to claim 9, characterized in that: The distance from one end face of the through shaft (2) to the end face of the adjacent mounting boss (21) is 72 mm, and the spacing between the two mounting bosses (21) is 249 mm; the bearing (5) is a deep groove ball bearing (5), and the inner diameter of the bearing (5) is 40 mm and the outer diameter is 100 mm; the width of the conveying box (1) is 410 mm, and the distance from the axis of the through shaft (2) to the inner bottom wall of the conveying box (1) is 288 mm; the outer diameter of the contact surface between the sprocket (3) and the chain is 114 mm, the outer diameter of the rib of the sprocket (3) is 140 mm, and the thickness of the ribs on both sides of the sprocket (3) is 6 mm.

Images