Rotating mechanism for protective door of heavy hangar

Abstract

The utility model relates to the technical field of heavy hangar protective door rotating accessories, in particular to a rotating mechanism for a heavy hangar protective door, which comprises an upper bearing seat and a lower bearing seat. The upper bearing seat and the lower bearing seat are installed on an upper foundation embedded plate and a lower foundation embedded plate of a door frame wall through bearing seat installation plates. Self-aligning roller bearings are mounted in the upper bearing seat and the lower bearing seat; a centripetal thrust bearing is arranged at the lower end of the self-aligning roller bearing in the lower bearing seat, and a gasket is clamped between the centripetal thrust bearing and the self-aligning roller bearing; the lower end of the centripetal thrust bearing is arranged on a friction pair, and the friction pair is mounted in a lower bearing seat; the upper end and the lower end of the door leaf rotating shaft are installed in the upper self-aligning roller bearing, the lower self-aligning roller bearing and the radial thrust bearing respectively. And the rotating requirement of the protective door of a 98-ton hangar can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating fittings for heavy hangar protection doors, and particularly relates to a rotating mechanism for heavy hangar protection doors. Background Art

[0002] The existing rotating mechanism of a conventional heavy hangar protection door is a hinge, which can only bear a door body of about 5 - 10 tons and cannot meet the rotating requirements of a heavier hangar protection door. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rotating mechanism for heavy hangar protection doors, which can meet the rotating requirements of a hangar protection door of about 98 tons, aiming at the defects and deficiencies of the prior art.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions: It includes an upper bearing seat and a lower bearing seat; both the upper bearing seat and the lower bearing seat are installed on two foundation embedded plates on the upper and lower parts of the door frame wall by bearing seat mounting plates; aligning roller bearings are installed in both the upper bearing seat and the lower bearing seat; a centripetal thrust bearing is provided at the lower end of the aligning roller bearing located in the lower bearing seat, and a washer is clamped between the two; the lower end of the centripetal thrust bearing is arranged on a friction pair, and the friction pair is installed in the lower bearing seat; the upper and lower ends of the door leaf rotating shaft are respectively installed in the upper aligning roller bearing, the lower aligning roller bearing and the centripetal thrust bearing below.

[0005] Preferably, the lower end of the lower bearing seat is supported on the ground by a support seat.

[0006] Preferably, an upper limit cover is covered on the upper end face of the aligning roller bearing in the upper bearing seat, and the upper limit cover is fixed to the upper end of the door leaf rotating shaft by a bolt assembly.

[0007] Preferably, an upper spacer is arranged on the upper end face of the aligning roller bearing in the upper bearing seat, an upper sealing cover is arranged at the upper end of the upper spacer, and a gasket is clamped between the two. The upper sealing cover is fixed on the upper bearing seat by a bolt assembly.

[0008] Preferably, a lower sealing cover is covered on the upper end face of the lower bearing seat, and it is fixed by a bolt assembly.

[0009] Preferably, a first lower spacer is fixed on the inner circumferential wall of the lower sealing cover. The upper end of the first lower spacer is sleeved on the circumferential wall of the lower end of the door leaf rotating shaft, and the upper edge of the first lower spacer abuts against a first groove on the circumferential wall of the lower end of the door leaf rotating shaft; a second lower spacer is sleeved on the upper part of the first lower spacer, the upper end of the second lower spacer is sleeved on the circumferential wall of the lower end of the door leaf rotating shaft, and the upper edge of the second lower spacer abuts against a second groove on the circumferential wall of the lower end of the door leaf rotating shaft.

[0010] Preferably, limiting blocks are fixed between the right side wall of the upper bearing seat and the bearing seat mounting plate, and between the left side wall of the lower bearing seat and the bearing seat mounting plate. Adjusting gaskets are clamped between the limiting blocks and the upper bearing seat and the lower bearing seat respectively.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model provides a rotating mechanism for a heavy-duty hangar protection door, which can meet the rotation requirements of a hangar protection door of about 98 tons. Description of the Drawings

[0012] Figure 1 It is a schematic installation structure diagram of the present utility model and the door leaf rotating shaft.

[0013] Figure 2 Is is Figure 1 Enlarged view of part A in [drawing number].

[0014] Figure 3 Is Figure 1 Enlarged view of part B in [drawing number].

[0015] Description of the Reference Numerals:

[0016] Bearing seat mounting plate 1, upper bearing seat 2, lower bearing seat 3, spherical roller bearing 4, angular contact ball bearing 5, washer 6, friction pair 7, support seat 8, door leaf rotating shaft 9, upper limit cover 10, upper sealing cover 11, upper spacer 12, lower sealing cover 13, first lower spacer 14, second lower spacer 15, limiting block 16, adjusting gasket 17. Detailed Embodiments

[0017] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings. The preferred embodiments described are only for example. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0018] Such as Figures 1-3As shown in the figure, the following technical solutions are adopted in this specific embodiment: It includes an upper bearing seat 2 and a lower bearing seat 3; both the upper bearing seat 2 and the lower bearing seat 3 are installed on the upper and lower foundation embedded plates of the door frame wall by means of bearing seat mounting plates 1; the lower end of the lower bearing seat 3 is supported on the ground by a support seat 8 (an adjusting gasket is clamped between the support seat 8 and the ground), and spherical roller bearings 4 are installed in both the upper bearing seat 2 and the lower bearing seat 3; a radial thrust bearing 5 is provided at the lower end of the spherical roller bearing 4 located in the lower bearing seat 3, and a washer 6 is clamped between the two; the lower end of the radial thrust bearing 5 is arranged on a friction pair 7, and the friction pair 7 is installed in the lower bearing seat 3; the upper and lower ends of the door leaf rotating shaft 9 are respectively installed in the upper spherical roller bearing 4 and the lower spherical roller bearing 4 and the radial thrust bearing 5; the upper end face of the spherical roller bearing 4 in the upper bearing seat 2 is covered with an upper limit cover 10, and the upper limit cover 10 is fixed to the upper end of the door leaf rotating shaft 9 by means of a bolt assembly; an upper spacer 12 is arranged on the upper end face of the spherical roller bearing 4 in the upper bearing seat 2, and the inner diameter of the upper spacer 12 is greater than the outer diameter of the upper limit cover 10. An upper sealing cover 11 is arranged at the upper end of the upper spacer 12, and a gasket is clamped between the two. The upper sealing cover 11 is fixed to the upper bearing seat 2 by means of a bolt assembly; the upper end face of the lower bearing seat 3 is covered with a lower sealing cover 13, which is fixed by means of a bolt assembly; a lower spacer one 14 is welded and fixed on the inner circumferential wall of the lower sealing cover 13. The upper end of the lower spacer one 14 is sleeved on the peripheral wall of the lower end of the door leaf rotating shaft 9, and the upper edge of the lower spacer one 14 abuts against a groove one on the peripheral wall of the lower end of the door leaf rotating shaft 9; a lower spacer two 15 is sleeved on the upper part of the lower spacer one 14. The upper end of the lower spacer two 15 is sleeved on the peripheral wall of the lower end of the door leaf rotating shaft 9, and the upper edge of the lower spacer two 15 abuts against a groove two on the peripheral wall of the lower end of the door leaf rotating shaft 9 (the groove two is located above the groove one and has an outer diameter larger than that of the groove one); limiting blocks 16 are fixed between the right side wall of the upper bearing seat 2 and the bearing seat mounting plate 1, and between the left side wall of the lower bearing seat 3 and the bearing seat mounting plate 1. Adjusting gaskets 17 are clamped between the limiting blocks 16 and the upper bearing seat 2 and the lower bearing seat 3 respectively.

[0019] The upper end of the door leaf rotating shaft 9 in this utility model is a single spherical roller bearing 4 (model: 24134CW33). When the large door opens and closes, it is only subjected to radial force; the lower end of the door leaf rotating shaft 9 is a combination of a spherical roller bearing 4 (model: 24134CW33) and a radial thrust bearing 5 (model: 99426). When the large door opens and closes, the spherical roller bearing 4 bears the radial force, and the radial thrust bearing 5 bears the axial force generated by the self-weight of the large door; it effectively connects the door leaf and the door frame wall, bears the weight of the door leaf itself, and resists the negative pressure (about 0.05 MPa) generated by the shock wave when the shock wave comes.

[0020] Compared with the prior art, the beneficial effect of this utility model is: This utility model provides a rotating mechanism for a heavy-duty hangar protection door, which can meet the rotation requirements of a hangar protection door of about 98 tons.

[0021] For those skilled in the art, they can modify the technical solutions described in the foregoing embodiments and make equivalent substitutions for some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A rotating mechanism for a heavy-duty hangar protection door, characterized in that: It includes an upper bearing seat (2) and a lower bearing seat (3); both the upper bearing seat (2) and the lower bearing seat (3) are mounted on two foundation embedded plates on the upper and lower parts of the door frame wall body by bearing seat mounting plates (1); a spherical roller bearing (4) is installed in both the upper bearing seat (2) and the lower bearing seat (3); a radial thrust bearing (5) is provided at the lower end of the spherical roller bearing (4) located in the lower bearing seat (3), and a washer (6) is clamped between the two; the lower end of the radial thrust bearing (5) is arranged on a friction pair (7), and the friction pair (7) is installed in the lower bearing seat (3); the upper and lower ends of the door leaf rotating shaft (9) are respectively installed in the upper spherical roller bearing (4), the lower spherical roller bearing (4), and the radial thrust bearing (5).

2. The rotating mechanism for the heavy-duty hangar protection door according to claim 1, characterized in that: The lower end of the said lower bearing seat (3) is supported on the ground by a support seat (8).

3. The rotating mechanism for the heavy-duty hangar protection door according to claim 2, characterized in that: The upper end face of the spherical roller bearing (4) in the said upper bearing seat (2) is covered with an upper limit cover (10), and the upper limit cover (10) is fixed to the upper end of the door leaf rotating shaft (9) by a bolt assembly.

4. The rotation mechanism for a heavy-duty hangar protection door according to claim 3, characterized in that: An upper spacer sleeve (12) is arranged on the upper end face of the spherical roller bearing (4) in the said upper bearing seat (2), an upper sealing cover (11) is arranged at the upper end of the upper spacer sleeve (12), and a gasket is clamped between the two. The upper sealing cover (11) is fixed to the upper bearing seat (2) by a bolt assembly.

5. The rotating mechanism for the heavy-duty hangar protection door according to claim 4, characterized in that: The upper end face of the said lower bearing seat (3) is covered with a lower sealing cover (13), which is fixed by a bolt assembly.

6. The rotating mechanism for the heavy-duty hangar protection door according to claim 5, characterized in that: A first lower spacer sleeve (14) is fixed on the inner circumferential wall of the said lower sealing cover (13). The upper end of the first lower spacer sleeve (14) is sleeved on the lower peripheral wall of the door leaf rotating shaft (9), and the upper edge of the first lower spacer sleeve (14) abuts against a first groove on the lower peripheral wall of the door leaf rotating shaft (9); a second lower spacer sleeve (15) is sleeved on the upper part of the first lower spacer sleeve (14). The upper end of the second lower spacer sleeve (15) is sleeved on the lower peripheral wall of the door leaf rotating shaft (9), and the upper edge of the second lower spacer sleeve (15) abuts against a second groove on the lower peripheral wall of the door leaf rotating shaft (9).

7. A rotating mechanism for a heavy-duty hangar protection door according to claim 6, characterized in that: Limit blocks (16) are fixed between the right side wall of the said upper bearing seat (2) and the bearing seat mounting plate (1), and between the left side wall of the lower bearing seat (3) and the bearing seat mounting plate (1). Adjusting gaskets (17) are clamped between the limit blocks (16) and the upper bearing seat (2) and the lower bearing seat (3).

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