Scraper guide wheel of circular coal yard stacker-reclaimer

Abstract

The utility model relates to a circular coal yard stacker-reclaimer scraper guide wheel, which comprises a roller, a connecting shaft, a transmission shaft body and a sleeve, the outer side surface of the transmission shaft body is an ellipsoidal surface, a pipe cavity matched with the transmission shaft body is correspondingly arranged in the sleeve, the transmission shaft body is rotatably arranged in the pipe cavity, the roller is sleeved outside the sleeve, and the connecting shaft is connected with the sleeve. One end of the transmission shaft body is fixedly connected with an external scraper through a connecting shaft. The transmission shaft has the beneficial effects that the transmission shaft body with the ellipsoid surface and the pipe cavity are arranged, and the ellipsoid surface structure can limit the axial deviation of the transmission shaft body and does not influence the radial rotation, so that the roller can be effectively prevented from falling off from the connecting shaft, and potential safety hazards caused by the falling roller to the operation of coal crusher and coal mill equipment are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bulk material conveying, in particular to a scraper guide wheel of a circular coal yard stacker and reclaimer. Background Art

[0002] In coal bulk material transportation enterprises such as thermal power plants, steel, chemical, and coal mines, during the daily coal taking process of the circular coal yard stacker and reclaimer, the guide wheel of the scraper reclaimer mechanism is unstable because the connecting shaft and the roller are connected by a bearing. As a result, the roller falls off the connecting shaft and falls into the coal pile, posing a great safety hazard to the operation of the coal crusher and pulverizer equipment. Utility Model Content

[0003] The technical problem to be solved by the utility model is to study a circular coal yard stacker-reclaimer scraper guide wheel which can run stably and will not fall off.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A scraper guide wheel for a circular coal yard stacker and reclaimer comprises a roller, a connecting shaft, a transmission shaft body and a sleeve. The outer side surface of the transmission shaft body is an ellipsoidal surface. A tube cavity matching the transmission shaft body is correspondingly arranged in the sleeve. The transmission shaft body is rotatably arranged in the tube cavity. A roller is arranged outside the sleeve. One end of the transmission shaft body is fixedly connected to an external scraper through a connecting shaft.

[0006] The beneficial effect of the utility model is that by setting an ellipsoidal transmission shaft and a tubular cavity, the ellipsoidal structure can limit the axial deviation of the transmission shaft without affecting the radial rotation, thereby effectively preventing the roller from falling off the connecting shaft, thereby preventing the falling roller from posing a safety hazard to the operation of the coal crusher and coal mill equipment.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a plurality of annular grooves are provided on the transmission shaft body, a plurality of balls are rollingly arranged in each annular groove, and the balls are rollingly connected to the inner wall of the tube cavity.

[0009] Furthermore, the ball is an alloy steel ball, and the inside of the annular groove and the inner wall of the tube cavity are coated with lubricating oil.

[0010] Furthermore, the sleeve is formed by buckling two splicing pieces, each splicing piece is horizontally provided with a second threaded hole, and the roller is provided with a first threaded hole corresponding to the second threaded hole, so that the splicing piece and the roller are fixedly connected by screws passing through the first threaded hole and the second threaded hole.

[0011] Furthermore, a sealing cover is arranged outside the roller at the other end of the transmission shaft body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a partial structural cross-sectional view of a scraper guide wheel of a circular coal yard stacker and reclaimer of the utility model;

[0013] Figure 2 This is a schematic diagram of the casing structure of a scraper guide wheel of a circular coal yard stacker and reclaimer of the utility model;

[0014] Figure 3 The utility model is a sectional view of the structure of the transmission shaft of the scraper guide wheel of the circular coal yard stacker and reclaimer.

[0015] Figure 4 The utility model is a schematic structural diagram of a scraper guide wheel of a circular coal yard stacker and reclaimer.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Roller, 11. First threaded hole, 2. Connecting shaft, 3. Transmission shaft, 31. Ring groove, 32. Ball, 4. Sleeve, 41. Tube cavity, 42. Splicing piece, 421. Second threaded hole, 5. Screw, 6. Sealing cover. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] like Figures 1 to 4 As shown, Example 1 of the utility model is a scraper guide wheel of a circular coal yard stacker and reclaimer, including a roller 1, a connecting shaft 2, a transmission shaft body 3 and a sleeve 4. The outer side surface of the transmission shaft body 3 is an ellipsoidal surface, and a tube cavity 41 adapted to the transmission shaft body 3 is correspondingly arranged in the sleeve 4. The transmission shaft body 3 is rotatably arranged in the tube cavity 41, and the roller 1 is arranged on the outer surface of the sleeve 4. One end of the transmission shaft body 3 is fixedly connected to the external scraper through the connecting shaft 2.

[0020] By providing an ellipsoidal transmission shaft body 3 and a tubular cavity 41, the ellipsoidal structure can limit the axial deviation of the transmission shaft body 3 without affecting the radial rotation, thereby effectively preventing the roller 1 from falling off the connecting shaft 2 and preventing the falling roller 1 from causing safety hazards to the operation of the coal crusher and coal mill equipment.

[0021] Embodiment 2 of the utility model is a scraper guide wheel for a circular coal yard stacker and reclaimer. On the basis of embodiment 1, a plurality of annular grooves 31 are provided on a transmission shaft body 3, and a plurality of balls 32 are rollingly arranged in each annular groove 31, and the balls 32 are rollingly connected with the inner wall of the tube cavity 41. The annular grooves 31 and the balls 32 are arranged in the transmission shaft body 3, which reduces the friction between the tube cavity 41 and the transmission shaft body 3 when the roller 1 rotates, and is beneficial to the daily work of the guide wheel.

[0022] Embodiment 3 of the utility model is a circular coal yard stacker and reclaimer scraper guide wheel. Based on embodiment 2, the ball 32 is an alloy steel ball, and the inside of the annular groove 31 and the inner wall of the tube cavity 41 are coated with lubricating oil. The alloy steel ball has high strength and good wear resistance; the lubricating oil can adhere to the surface of the ball 32 and the transmission shaft body 3, reducing the wear of the ball 32 and the transmission shaft body 3.

[0023] Embodiment 4 of the utility model is a scraper guide wheel for a circular coal yard stacker and reclaimer. On the basis of embodiment 1, the sleeve 4 is formed by buckling two splicing pieces 42, each splicing piece 42 is horizontally provided with a second threaded hole 421, and the roller 1 is provided with a first threaded hole 11 corresponding to the second threaded hole 421, so that the splicing piece 42 and the roller 1 are fixedly connected by screws 5 passing through the first threaded hole 11 and the second threaded hole 421. The spliced ​​sleeve 4 can facilitate daily maintenance of the transmission shaft body 3, so that the transmission shaft body 3 is in a better working state and the guide wheel rotates more smoothly.

[0024] Embodiment 5 of the utility model is a circular coal yard stacker and reclaimer scraper guide wheel. On the basis of embodiment 1, a sealing cover 6 is arranged outside the roller 1 at the other end of the transmission shaft body 3 to prevent coal ash from invading the gap between the transmission shaft body 3 and the tube cavity 41, thereby increasing wear and extending the service life of the guide wheel.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scraper guide wheel for a circular coal yard stacker and reclaimer, characterized in that: The invention comprises a roller (1), a connecting shaft (2), a transmission shaft body (3) and a sleeve (4); the outer side surface of the transmission shaft body (3) is an ellipsoidal surface; a tube cavity (41) adapted to the transmission shaft body (3) is correspondingly arranged in the sleeve (4); the transmission shaft body (3) is rotatably arranged in the tube cavity (41); the roller (1) is arranged on the outer surface of the sleeve (4); and one end of the transmission shaft body (3) is fixedly connected to an external scraper via a connecting shaft (2).

2. The circular coal yard stacker and reclaimer scraper guide wheel according to claim 1, characterized in that: The transmission shaft body (3) is provided with a plurality of annular grooves (31), and a plurality of balls (32) are rollingly arranged in each annular groove (31), and the balls (32) are rollingly connected to the inner wall of the tube cavity (41).

3. The scraper guide wheel of a circular coal yard stacker and reclaimer according to claim 2, characterized in that: The rolling ball (32) is an alloy steel ball, and the interior of the annular groove (31) and the inner wall of the tube cavity (41) are coated with lubricating oil.

4. The circular coal yard stacker and reclaimer scraper guide wheel according to claim 1, characterized in that: The sleeve (4) is formed by buckling two splicing pieces (42), each of the splicing pieces (42) is horizontally provided with a second threaded hole (421), and the roller (1) is provided with a first threaded hole (11) corresponding to the second threaded hole (421), so that the splicing piece (42) and the roller (1) are fixedly connected by screws (5) passing through the first threaded hole (11) and the second threaded hole (421).

5. The circular coal yard stacker and reclaimer scraper guide wheel according to claim 1, characterized in that: A sealing cover (6) is arranged outside the roller (1) at the other end of the transmission shaft (3).

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