Anti-falling protection device for horizontal wheel set of multifunctional aluminum electrolysis unit

Abstract

The utility model discloses an anti-falling protection device for a horizontal wheel set of a multifunctional aluminum electrolysis unit, a horizontal wheel penetrates through an upper bearing and a lower bearing of a bearing seat, a wheel body of the horizontal wheel is arranged below the bearing seat, and the top end of the horizontal wheel is connected with a fixed end cover; an anti-falling mechanism is arranged outside the bearing seat, a fixing plate is arranged on a bottom plate of the anti-falling mechanism, a locking bolt fixing seat is arranged on the outer wall of the bearing seat, the fixing plate is connected with the bearing seat through the locking bolt fixing seat, and the bottom plate is arranged below the wheel body. The three locking bolt fixing seats are welded to the front end face, the rear end face and the outer side surface of the outer wall of the bearing seat respectively, the screw hole is formed in the center of the fixing plate, the anti-falling mechanism of a cage-shaped triangular structure is manufactured through flat iron, and the anti-falling mechanism is installed on the locking bolt fixing seats through high-strength locking bolts. Even if the wheel set is damaged, the wheel set can be supported by the anti-falling mechanism, it is ensured that the wheel set cannot directly fall on the ground from the upper portion, and the risk of falling objects from high altitudes is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum electrolysis multifunctional units, and particularly relates to a fall prevention protection device for a horizontal wheel set of an aluminum electrolysis multifunctional unit. Background Technique

[0002] The use of an aluminum electrolysis multifunctional crane unit (referred to as a multifunctional unit) runs through the whole process of the aluminum electrolysis production process, and the safe and reliable operation of the equipment provides a strong guarantee for electrolysis production. The running mechanisms of the large and small cars of the unit are supported by wheel sets and driven bilaterally. An in-line three-in-one reducer is adopted and a suspended buffer device is provided. The wheel set adopts a vertical wheel without a flange and a horizontal wheel guiding method.

[0003] There is a set of horizontal wheels on each side of the lower part of the end beam of the multifunctional unit. The whole horizontal wheel set is fixed by 4 hexagon bolts. The internal fixation of a single horizontal wheel depends on a bearing and 2 hexagon bolts plus an end cover for fixation. The track elevation of the multifunctional unit is 11.5 meters. The horizontal wheels have no fall prevention protection. During operation, if the bearing of the horizontal wheel set is damaged and jammed, or the track breaks and causes jamming, resulting in the fracture of the internal fixation bolts, it is very easy to cause the derailment and fall of the horizontal wheels, posing a risk of high-altitude falling objects. The self-weight of the horizontal wheels is more than 25 kg. If there are personnel working or passing below, it is easy to cause serious object hitting accidents, endangering personal and property safety.

[0004] In order to ensure the intrinsic safety operation of the multifunctional unit, it is necessary to periodically maintain and repair the wheel sets and various mechanisms. During the operation of the unit, maintenance personnel need to prevent possible equipment accidents through dynamic hazard source identification and adopt preventive measures that conform to the actual situation on site. Therefore, the implementation of safe, efficient, convenient and economical preventive measures has always been a problem discussed and solved by technical personnel. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fall prevention protection device for a horizontal wheel set of an aluminum electrolysis multifunctional unit to solve the above problems.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] An anti-falling protection device for the horizontal wheel set of an aluminum electrolysis multifunctional unit, comprising a trolley end beam and a track beam. A crane track is arranged on the track beam, and load-bearing seats are symmetrically arranged on both sides of the crane track. The load-bearing seat includes a seat body, a fixed end cover, an upper bearing, and a lower bearing that are sequentially arranged in the seat body from top to bottom. A horizontal wheel is inserted through the upper bearing and the lower bearing. The wheel body of the horizontal wheel is arranged below the load-bearing seat, and the top end of the horizontal wheel is fixedly connected to the fixed end cover. The wheel bodies of the two horizontal wheels are cooperatively clamped on the crane track; an anti-falling mechanism is arranged outside the load-bearing seat. The anti-falling mechanism includes a "T"-shaped bottom plate. Fixing plates extending upward are respectively arranged on the protruding ends of the bottom plate. A locking bolt fixing seat is arranged on the outer wall of the load-bearing seat, and screw holes that cooperate with the locking bolt fixing seat are respectively arranged on the fixing plates. The bottom plate is arranged below the wheel body, and locking bolts are arranged in the locking bolt fixing seat and the screw holes for fixedly connecting the fixing plates to the load-bearing seat.

[0008] To further implement the present utility model, the bottom plate is parallel to but does not contact the bottom surface of the wheel body.

[0009] To further implement the present utility model, the fixing plate is perpendicular to the bottom plate, and the fixing plate is parallel to but does not contact the side wall of the seat body.

[0010] To further implement the present utility model, the locking bolt fixing seat and the fixing plate are respectively arranged on the side wall of the seat body away from the crane track and the front and rear end walls in the moving direction of the seat body.

[0011] To further implement the present utility model, a horizontal wheel fixing bolt connection is arranged between the top end of the horizontal wheel and the fixed end cover.

[0012] To further implement the present utility model, a load-bearing seat fixing bolt connection is arranged between the top surface of the seat body and the trolley end beam.

[0013] To further implement the present utility model, the length or width of the bottom plate is not less than 2 / 3 of the cross-section of the horizontal wheel. Ensure that once a fall occurs, the anti-falling and consolidation can safely and reliably carry the horizontal wheel into the cage structure.

[0014] The beneficial effects of the present utility model compared with the prior art are:

[0015] Based on the installation and operation principle of the horizontal wheel, the load-bearing seat is hung on the end beams of the trolley and the crane girder by four load-bearing seat fixing bolts. Two horizontal wheels are installed at the lower part of each load-bearing seat. The horizontal wheels are mainly fixed inside the load-bearing seat by the fixed end cover, horizontal wheel fixing bolts, and upper and lower bearings. During the daily operation of the unit, the horizontal wheels mainly play a role in guiding and deviation correction, generating radial forces with the overhead crane track, resulting in the risk that the horizontal wheel set may break and fall onto the track beam or even the ground when damaged or jammed. To avoid this risk and considering the limited operating space, three locking bolt fixing seats are welded on the front and rear end faces and the outer surface of the outer wall of the load-bearing seat respectively, and screw holes are opened at the center position of the fixing plate. A cage-shaped triangular anti-falling mechanism is made of flat iron, and the anti-falling mechanism is installed on the locking bolt fixing seat using high-strength locking bolts, ensuring that even if the wheel set is damaged, it can be supported by the anti-falling mechanism, ensuring that the wheel set will not directly fall to the ground from above and avoiding the risk of falling objects from a height.

[0016] The structure of the anti-falling mechanism is cage-shaped triangular, and the cross-section is perpendicular to the fixed surface at 90°, ensuring uniform force on three sides. The anti-falling mechanism is a detachable structure. The welding position of the locking bolt fixing seat must ensure that after the anti-falling mechanism is installed, a safe distance is maintained from the normal operating horizontal plane of the horizontal wheel, the vertical plane of the overhead crane track, and the horizontal plane of the track beam, preventing mechanical collision or wear of the anti-falling protection device itself during the operation of the trolley and the crane.

[0017] The utility model can effectively prevent the risk of damage and falling of the horizontal wheel set, fundamentally eliminate the potential hazards and safety accidents of the wheel set falling, and solve the safety hazard problems existing in the on-site equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic structural diagram of the anti-falling mechanism in the utility model;

[0020] Figure 3 is Figure 2 the right view of;

[0021] Figure 4 is Figure 2 the A-A sectional view of;

[0022] Figure 5 a schematic structural diagram of the horizontal wheel in the utility model;

[0023] Figure 6 is an enlarged view of the locking bolt fixing seat in the utility model;

[0024] Figure 7 is Figure 6 the B-B sectional view of;

[0025] The meanings of the reference numerals are as follows: 1, load-bearing seat; 2, seat body; 3, fixed end cover; 4, upper bearing; 5, lower bearing; 6, horizontal wheel; 7, wheel body; 8, overhead crane track; 9, anti-falling mechanism; 10, bottom plate; 11, fixed plate; 12, locking bolt fixing seat; 13, screw hole; 14, locking bolt; 15, horizontal wheel fixing bolt; 16, end beam of trolley and crab; 17, load-bearing seat fixing bolt; 18, track beam. Specific embodiments

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] As Figure 1-7 shown, an anti-falling protection device for a horizontal wheel set of an aluminum electrolysis multifunctional unit includes an end beam of a trolley and a crab and a track beam. An overhead crane track is arranged on the track beam, and load-bearing seats are symmetrically arranged on both sides of the overhead crane track. The load-bearing seat 1 includes a seat body 2, and a fixed end cover 3, an upper bearing 4 and a lower bearing 5 which are sequentially arranged in the seat body 2 from top to bottom. A horizontal wheel 6 is inserted into the upper bearing 4 and the lower bearing 5. The wheel body 7 of the horizontal wheel 6 is arranged below the load-bearing seat 1. A horizontal wheel fixing bolt 15 is arranged between the top end of the horizontal wheel 6 and the fixed end cover 3 for connection. The wheel bodies 7 of the two horizontal wheels 6 are cooperatively clamped on the overhead crane track 8; an anti-falling mechanism 9 is arranged outside the load-bearing seat 1. The anti-falling mechanism 9 includes a "T"-shaped bottom plate 10. The length or width of the bottom plate 10 is not less than 2 / 3 of the cross-section of the horizontal wheel 6. Fixed plates 11 extending upward are respectively arranged on the extending ends of the bottom plate 10. The fixed plates 11 are perpendicular to the bottom plate 10 and parallel to but not in contact with the side wall of the seat body 2. A locking bolt fixing seat 12 is arranged on the outer wall of the load-bearing seat 1. Screw holes 13 respectively cooperating with the locking bolt fixing seat 12 are arranged on the fixed plates 11. The locking bolt fixing seat 12 and the fixed plates 11 are respectively arranged on the side wall of the seat body 2 far from the overhead crane track 8 and the front and rear end walls of the seat body 2 in the moving direction of the seat body 2. The bottom plate 10 is arranged below the wheel body 7 and is parallel to but not in contact with the bottom surface of the wheel body 7. A locking bolt 14 is arranged in the locking bolt fixing seat 12 and the screw hole 13 for fixedly connecting the fixed plate 11 and the load-bearing seat 1. A load-bearing seat fixing bolt 17 is arranged for connection between the top surface of the seat body 2 and the end beam of the trolley and the crab 16.

Claims

1. A horizontal wheel group anti-fall protection device for an aluminum electrolysis multifunctional unit, comprising a large and small car end beam and a track beam, a crane track is arranged on the track beam, and load-bearing seats are symmetrically arranged on both sides of the crane track, characterized in that: The load-bearing seat (1) comprises a seat body (2) and a fixed end cover (3), an upper bearing (4) and a lower bearing (5) which are arranged in sequence from top to bottom in the seat body (2); a horizontal wheel (6) is inserted into the upper bearing (4) and the lower bearing (5); a wheel body (7) of the horizontal wheel (6) is arranged below the load-bearing seat (1); the top end of the horizontal wheel (6) is fixedly connected to the fixed end cover (3); the wheel bodies (7) of the two horizontal wheels (6) are matched and clamped on the overhead travelling crane track (8); an anti-falling mechanism (9) is arranged outside the load-bearing seat (1) to prevent the horizontal wheel (6) from falling. The falling mechanism (9) comprises a "T"-shaped bottom plate (10), and upwardly extending fixing plates (11) are respectively arranged on the protruding ends of the bottom plate (10), and a locking bolt fixing seat (12) is arranged on the outer wall of the load-bearing seat (1), and screw holes (13) are respectively matched with the locking bolt fixing seat (12) on the fixing plate (11). The bottom plate (10) is arranged below the wheel body (7), and locking bolts (14) are arranged in the locking bolt fixing seat (12) and the screw holes (13) for fixing the fixing plate (11) to the load-bearing seat (1).

2. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 1, characterized in that: The bottom plate (10) is parallel to the bottom surface of the wheel body (7) but does not contact it.

3. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 1 or 2, characterized in that: The fixing plate (11) is perpendicular to the bottom plate (10), and the fixing plate (11) is parallel to, but not in contact with, the side wall of the seat body (2).

4. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 3, characterized in that: The locking bolt fixing seat (12) and the fixing plate (11) are respectively arranged on the side wall of the seat body (2) away from the overhead travelling track (8) and the front and rear end walls of the seat body (2) in the movement direction.

5. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 4, characterized in that: A horizontal wheel fixing bolt (15) is provided between the top end of the horizontal wheel (6) and the fixed end cover (3) for connection.

6. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 5, characterized in that: A load-bearing seat fixing bolt (17) is arranged between the top surface of the seat body (2) and the end beams (16) of the large and small vehicles for connection.

7. The anti-fall protection device for horizontal wheels of aluminum electrolysis multifunctional unit according to claim 6, characterized in that: The length or width of the bottom plate (10) is not less than 2 / 3 of the cross section of the horizontal wheel (6).

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