High-alloy bar combined gearbox

Abstract

The utility model discloses a high-alloy bar combined gearbox which comprises a shell. A plurality of reinforcing ribs are arranged on the shell along the circumference, are circular and are uniformly arranged along the length direction of the shell; two ends of the shell are respectively provided with an end cover I and an end cover II; a first bearing is arranged on the second end cover, an input shaft is arranged in the first bearing, symmetrical second bearings are arranged on the first end cover, and output shafts are arranged in the second bearings. The first bearing and the second bearing are each provided with a sealing dustproof structure. Abrasion caused by dust entering the shafts and the bearings of the gearbox is not prone to occurring, the service life is prolonged, and the failure rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box technical field, specifically is a kind of high alloy bar joint gear box. BACKGROUND

[0002] Alloy bar refers to the bar made of two or more than two metal or non-metallic elements, widely used in various industrial fields, especially in the manufacture of high-strength, high-toughness mechanical parts and structural materials. Alloy bar is various, including but not limited to stainless steel bar, aluminum alloy bar, copper alloy bar, etc. They are widely used because of their excellent mechanical properties and corrosion resistance.

[0003] Gear box plays an important role in the rolling mill transmission of alloy bar production line, not only provides power for transmission device, but also involves vibration control and quality assurance to ensure the efficient and stable operation of alloy bar production line. In practical application, the output shaft and bearing part need to be closed and protected when the gear box is not in use, to avoid fine impurities entering the bearing, which may cause wear and tear during subsequent use, and even damage the bearing. However, separate protection of the bearing increases the workload and makes it difficult to achieve complete sealing. SUMMARY

[0004] The utility model solves the above-mentioned technical problem of separate protection of the bearing, which increases the workload and makes it difficult to achieve complete sealing, and provides a high alloy bar joint gear box.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a high alloy bar joint gear box, comprising a shell; a plurality of reinforcing ribs are arranged around the shell; the reinforcing ribs are circular in shape and uniformly arranged along the length direction of the shell; end covers one and two are arranged at both ends of the shell; a bearing one is arranged on the end cover two, and an input shaft is arranged in the bearing one; symmetrically arranged bearing twos are arranged on the end cover one, and output shafts are arranged in the bearing twos.

[0006] The bearing one and the bearing two are provided with a sealing and dustproof structure, which comprises an outer ring, an inner ring rotatably arranged in the outer ring, and a metal frame rotatably arranged between the outer ring and the inner ring; a groove capable of accommodating the metal frame is arranged on the outer side of the inner ring; the metal frame is composed of two annular plates, and arc-shaped protrusions are arranged on the annular plates; corresponding arc-shaped protrusions can jointly form an arc-shaped circular groove, and a steel ball is rotatably arranged in the circular groove; a ring-shaped limiting groove is arranged on the inner side of the outer ring close to the outer side, and a sealing plate is rotatably arranged in the limiting groove; the sealing plate is provided with a ring-shaped dust collecting groove; a plurality of grooves are connected around the dust collecting groove; the mutually distant sides of the grooves are flush with the inner side of the outer ring.

[0007] Further, the outer sides of the shell are smoothly transitioned.

[0008] Further, the upper end of the shell is provided with a mounting seat, the mounting seat is connected with the shell through a plurality of fasteners; a plurality of assembly holes are arranged on the mounting seat.

[0009] Further, a plurality of assembly grooves are arranged between the first end cover and the shell and between the second end cover and the shell, and a fastener is threadedly connected in each assembly groove.

[0010] Further, the diameters of the two ends of the circular groove are smaller than the diameter of the steel ball.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] On the basis of the conventional bearing connected with the output shaft and the input shaft on the gear box, a sealing plate is additionally arranged, the sealing plate is located in the outer ring and close to the outer side, dust enters the bearing first through the sealing plate, is guided into the dust collecting groove through a plurality of grooves on the sealing plate and is accumulated or falls by itself, so that the several shafts of the gear box and the bearing are not easy to enter dust and cause abrasion, the service life is prolonged, and the failure rate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the sealing dustproof structure of the utility model.

[0015] As shown in the figure: 1, shell, 2, reinforcing rib, 3, mounting seat, 4, assembly hole, 5, first end cover, 6, second end cover, 7, input shaft, 8, bearing two, 9, output shaft, 10, fastener, 11, outer ring, 12, inner ring, 13, metal frame, 14, annular plate, 15, steel ball, 16, groove, 17, limiting groove, 18, sealing plate, 19, dust collecting groove, 20, groove. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in combination with the drawings.

[0017] Example one, in combination with the drawings Figure 1 A high alloy bar combined gear box, comprising a shell 1, the outer side of the shell 1 is smoothly transitioned, the safety of the shell 1 is improved when in use, and the harm caused by bumping is reduced;The upper end of the shell 1 is provided with a mounting seat 3, the mounting seat 3 is connected with the shell 1 through a plurality of fastening bolts;A plurality of assembly holes 4 are arranged on the mounting seat 3 for connecting with other components;

[0018] in combination with the drawings Figure 1The shell 1 is provided with a plurality of reinforcing ribs 2 along the circumference, the reinforcing ribs 2 are circular, and are uniformly arranged along the length direction of the shell 1; the reinforcing ribs 2 can increase the structural strength of the shell 1 and suppress vibration during operation; the shell 1 is respectively provided with an end cover one 5 and an end cover two 6 at two ends; a plurality of assembly grooves are arranged between the end cover one 5 and the shell 1 and between the end cover two 6 and the shell 1, and a fastener 10 is threadedly connected in each assembly groove; the fastener 10 is preferably an internal hexagonal bolt, which facilitates assembly; and the above-mentioned assembly type structure can improve the overall structural strength of the shell 1.

[0019] The drawings are combined Figure 1 The end cover two 6 is provided with a bearing one, and an input shaft 7 is arranged in the bearing one; the end cover one 5 is provided with symmetrical bearings two 8, and an output shaft 9 is arranged in each bearing two 8; the double output shafts can be hollow or solid, or the two output shafts can be driven at different speeds, which improves practicability and saves space.

[0020] The drawings are combined Figure 2 The bearing one and the bearing two 8 are provided with sealing and dustproof structures, which include an outer ring 11, an inner ring 12 rotatably arranged in the outer ring 11, and a metal frame 13 rotatably arranged between the outer ring 11 and the inner ring 12; a groove 16 is arranged on the outer side of the inner ring 12 and can accommodate the metal frame 13, so as to limit the metal frame 13 inside the inner ring 12 and enable the metal frame 13 to stably rotate; in addition, a steel ball 15 is tangent to the groove 16; the metal frame 13 is composed of two annular plates 14, and the two annular plates 14 are welded together; arc-shaped protrusions are arranged on the annular plates, and corresponding arc-shaped protrusions can jointly form an arc-shaped circular groove; a steel ball 15 is rotatably arranged in the circular groove; and the diameters of the two ends of the circular groove are smaller than the diameter of the steel ball 15, so that the steel ball 15 can only rotate in the circular groove and cannot fall out.

[0021] The drawings are combined Figure 2 An annular limiting groove 17 is arranged in the outer ring 11 and close to the outer side; a sealing plate 18 is rotatably arranged in the limiting groove 17; an annular dust collecting groove 19 is arranged on the sealing plate 18; and a plurality of grooves 20 are connected to the dust collecting groove 19 along the circumference; the outer side surfaces of the grooves 20 are flush with the inner side of the outer ring 11, so that dust entering the outer ring 11 will directly enter the grooves 20 and will not accumulate on the inner side of the outer ring 11; the dust first passes through the sealing plate 18 before entering the bearing, is guided by the grooves 20 on the sealing plate 18, and then enters the dust collecting groove 19 to be accumulated or to fall off by itself, so that the shafts and bearings of the gear box are not easy to be filled with dust and are not easy to be worn.

[0022] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A high alloy bar combined gearbox, comprising a housing (1); characterized in that: The shell (1) is provided with a plurality of reinforcing ribs (2) along its circumference. The reinforcing ribs (2) are all annular and are evenly arranged along the length direction of the shell (1). The shell (1) is provided with an end cover (5) and a second end cover (6) at both ends. The second end cover (6) is provided with a bearing (1), and an input shaft (7) is provided in the bearing (1). The first end cover (5) is provided with a symmetrical bearing (8), and an output shaft (9) is provided in each of the bearings (8). The first bearing and the second bearing (8) are both provided with a sealing dustproof structure, the sealing dustproof structure comprising an outer ring (11), an inner ring (12) rotatably provided inside the outer ring (11), a metal frame (13) rotatably provided between the outer ring (11) and the inner ring (12), a groove (16) capable of accommodating the metal frame (13) being provided on the outer side of the inner ring (12); the metal frame (13) is composed of two annular plates (14), each of which is provided with an arc-shaped protrusion. The corresponding arc-shaped protrusions can together form an arc-shaped circular groove, in which a steel ball (15) is rotatably arranged; an annular limiting groove (17) is provided inside the outer ring (11) and close to the outer side, a sealing plate (18) is rotatably provided in the limiting groove (17), and an annular ash collecting groove (19) is provided on the sealing plate (18), and the ash collecting groove (19) is connected to a plurality of grooves (20) along the circumference, and the sides of the grooves (20) that are away from each other are flush with the inner side of the outer ring (11).

2. The high alloy bar combined gearbox according to claim 1, characterized in that: The outer side surfaces of the shell (1) are all smoothly transitioned.

3. The high alloy bar combined gearbox according to claim 1, characterized in that: The upper end of the shell (1) is provided with a mounting seat (3), and the mounting seat (3) is connected to the shell (1) via a plurality of fasteners; the mounting seat (3) is provided with a plurality of assembly holes (4).

4. The high alloy bar combined gearbox according to claim 1, characterized in that: A plurality of assembly grooves are provided between the first end cover (5) and the shell (1), and between the second end cover (6) and the shell (1), and fasteners (10) are threadedly connected in the assembly grooves.

5. The high alloy bar combined gearbox according to claim 1, characterized in that: The diameters of the two ends of the circular groove are smaller than the diameter of the steel ball (15).

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