Frame roller motor shaft breakage protection device

Abstract

The utility model discloses a frame roller motor shaft breakage protection device, which relates to the technical field of steel rolling equipment and comprises a motor, a frame roller and a rolling mill housing, the motor is mounted on one side of the upper end face of the rolling mill housing, a bearing seat is fixed on the other side of the upper end face of the rolling mill housing, and the frame roller is rotatably mounted on the bearing seat through a bearing. A universal connecting roller is connected between the output end of the motor and one end of the rack roller, a lower supporting seat is installed on the upper end face of the rolling mill housing, an upper supporting seat is connected to the top end of the lower supporting seat, the universal connecting roller is sleeved with the lower supporting seat and the upper supporting seat, and elastic supporting structures are arranged on one side of the lower supporting seat and one side of the upper supporting seat respectively. According to the utility model, through the arrangement of the lower supporting seat and the upper supporting seat as well as the elastic supporting structures which are respectively arranged on one side of the lower supporting seat and one side of the upper supporting seat, the universal connecting roller can be instantly supported when the motor shaft is broken, so that the accident time is shortened, the difficulty and the strength of first-aid repair operation are reduced, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling equipment, in particular to a shaft breaking protection device for a housing roll motor. Background Art

[0002] On large rolling mills, in order to reliably feed the rolled piece into the rolling mill rolls, it is required that the roller table rollers be as close to the rolling mill rolls as possible. For this reason, roller table rollers are installed on these rolling mill housings, and these rollers are called housing rolls. The functions of the housing rolls: used for guiding in and out the rolled piece. Structural features: The housing roll device consists of inlet and outlet housing rolls, a transmission device, etc. The housing roll bearing seats are inserted into the vertical roll housing and positioned by a spigot. The transmission device consists of a motor and a connecting shaft, etc. When changing the rolls, a special lifting tool is used to change the rolls.

[0003] The housing roll device bears a large impact load. The housing roll device of the rolling mill is installed close to the working roll of the rolling mill. After the rolled piece is rolled out from the roll, the head of the rolled piece directly acts on the housing roll, inevitably causing an impact on the housing roll. At this time, the rear part of the rolled piece is still being rolled, and the rolled piece is still in the clamping state of the roll. The rolled piece often shows a nodding phenomenon during the rolling process, which further increases the impact load of the head of the rolled piece on the housing roll, and even on the drive motor shaft, easily causing the motor shaft to break, and the equipment within the swing radius of the universal coupling shaft connected to the motor shaft is easily damaged, having a relatively large potential safety hazard. Therefore, a shaft breaking protection device for a housing roll motor is provided now. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a shaft breaking protection device for a housing roll motor. Through the arranged lower support seat and upper support seat and the elastic support structures respectively arranged on one side of the lower support seat and the upper support seat, when the motor shaft breaks, it can instantaneously support the universal coupling roll, reduce the accident time, reduce the difficulty and intensity of the emergency repair operation, improve the operation safety, and overcome the deficiencies of the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A shaft breaking protection device for a housing roll motor, comprising a motor, a housing roll and a rolling mill housing. The motor is installed on one side of the upper end surface of the rolling mill housing. A bearing seat is fixed on the other side of the upper end surface of the rolling mill housing. The housing roll is rotatably installed on the bearing seat through a bearing. A universal coupling roll is connected between the output end of the motor and one end of the housing roll. A lower support seat is installed on the upper end surface of the rolling mill housing. The top end of the lower support seat is connected with an upper support seat. The lower support seat and the upper support seat are sleeved outside the universal coupling roll. Elastic support structures are arranged on one side of the lower support seat and the upper support seat respectively.

[0007] Preferably, a first semi-circular groove is formed in the middle of the upper end surface of the lower support seat and the middle of the lower end surface of the upper support seat.

[0008] Preferably, two screws are fixed on both sides of the upper end surface of the lower support seat, and both sides of the upper support seat are respectively sleeved on the two screws, and locking nuts are screwed on the upper ends of the two screws.

[0009] Preferably, support sleeves are fixedly sleeved at the bottom ends of the two screws, and the upper support seat is placed on the upper ends of the two support sleeves.

[0010] Preferably, the elastic support structure includes connecting plates welded to one side of the lower support seat and the upper support seat respectively, and two T-shaped rods are symmetrically inserted into both connecting plates. Protective blocks are respectively connected to the ends of the two T-shaped rods on both connecting plates. Second semi-circular grooves are formed on the opposite sides of the two protective blocks, and springs are sleeved on the parts of the T-shaped rods between the connecting plates and the protective blocks.

[0011] Preferably, the radius of the first semi-circular groove is greater than the radius of the second semi-circular groove.

[0012] Preferably, two rows of bolt holes are equidistantly formed on the rolling mill housing, and the lower support seat is connected to two of the bolt holes through bolts.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing the lower support seat, the upper support seat and the elastic support structures respectively arranged on one side of the lower support seat and the upper support seat, when the motor shaft breaks, it can instantaneously support the universal coupling roll, reduce the accident time, reduce the difficulty and intensity of the emergency repair operation, and improve the operation safety. Description of the Drawings

[0015] Figure 1 is a first perspective three-dimensional structural schematic diagram of a frame roll motor shaft breakage protection device proposed by the present utility model.

[0016] Figure 2 is a second perspective three-dimensional structural schematic diagram of a frame roll motor shaft breakage protection device proposed by the present utility model.

[0017] Figure 3 is a partial structural schematic diagram of a frame roll motor shaft breakage protection device proposed by the present utility model.

[0018] Figure 4 is a Figure 3 magnified structural schematic diagram of part A in a frame roll motor shaft breakage protection device proposed by the present utility model.

[0019] In the figure: 1. Motor; 2. Universal connecting roll; 3. Frame roll; 4. Rolling mill housing; 5. Bearing block; 6. Lower support seat; 7. Upper support seat; 8. Bolt hole; 9. Protection block; 10. Locking nut; 11. Screw rod; 12. Support sleeve; 13. Second semi-circular groove; 14. First semi-circular groove; 15. Connecting plate; 16. T-shaped rod; 17. Spring. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Embodiment 1, referring to Figures 1-4 , a shaft-breaking protection device for the frame roll motor, including a motor 1, a frame roll 3 and a rolling mill housing 4. The motor 1 is installed on one side of the upper end face of the rolling mill housing 4. A bearing block 5 is fixed on the other side of the upper end face of the rolling mill housing 4. The frame roll 3 is rotatably installed on the bearing block 5 through a bearing. A universal connecting roll 2 is connected between the output end of the motor 1 and one end of the frame roll 3. A lower support seat 6 is installed on the upper end face of the rolling mill housing 4. The top end of the lower support seat 6 is connected with an upper support seat 7. The lower support seat 6 and the upper support seat 7 are sleeved outside the universal connecting roll 2. Elastic support structures are provided on one side of the lower support seat 6 and the upper support seat 7.

[0022] First semi-circular grooves 14 are respectively opened in the middle of the upper end face of the lower support seat 6 and the middle of the lower end face of the upper support seat 7. Two screw rods 11 are respectively fixed on both sides of the upper end face of the lower support seat 6. The two sides of the upper support seat 7 are respectively slidably sleeved on the two screw rods 11. Locking nuts 10 are screwed on the upper ends of the two screw rods 11. Support sleeves 12 are fixedly sleeved on the bottom ends of the two screw rods 11. The upper support seat 7 is placed on the upper ends of the two support sleeves 12;

[0023] The elastic support structure includes connecting plates 15 respectively welded on one side of the lower support seat 6 and the upper support seat 7. Two T-shaped rods 16 are symmetrically inserted on the two connecting plates 15. Protection blocks 9 are respectively connected to the ends of the two T-shaped rods 16 on the two connecting plates 15. Second semi-circular grooves 13 are opened on the opposite sides of the two protection blocks 9. Springs 17 are sleeved on the parts of the T-shaped rods 16 between the connecting plates 15 and the protection blocks 9. The radius of the first semi-circular groove 14 is greater than the radius of the second semi-circular groove 13;

[0024] Two rows of bolt holes 8 are equidistantly opened on the rolling mill housing 4. The lower support seat 6 is connected to two of the bolt holes 8 through bolts.

[0025] Working principle: The upper support base 7 is sleeved on the two screw rods 11 of the lower support base 6, and the two locking nuts 10 are respectively screwed tightly with the two screw rods 11, so as to realize that the lower support base 6 and the upper support base 7 are sleeved outside the universal joint roller 2, and the two protective blocks 9 are sleeved outside the universal joint roller 2. The spring 17 plays an elastic supporting role for the protective blocks 9. The gap between the universal joint roller 2 and the two first semi-circular grooves 14 is larger than the gap between the universal joint roller 2 and the two second semi-circular grooves 13. When the motor shaft of the frame roller breaks, the universal joint roller 2 is elastically supported by the two protective blocks 9 and will not swing significantly, thus avoiding the situation that the universal joint roller 2 damages the surrounding equipment, reducing the risk of damage to the universal joint roller 2, shortening the accident time, reducing the difficulty and intensity of emergency repair operations, and improving operation safety.

[0026] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for protecting a motor of a stand roller from broken shafts, comprising a motor (1), a stand roller (3) and a rolling mill arch (4), characterized in that: The motor (1) is mounted on one side of the upper end surface of the rolling mill arch (4); a bearing seat (5) is fixed on the other side of the upper end surface of the rolling mill arch (4); the frame roller (3) is rotatably mounted on the bearing seat (5) via a bearing; a universal joint roller (2) is connected between the output end of the motor (1) and one end of the frame roller (3); a lower support seat (6) is mounted on the upper end surface of the rolling mill arch (4); an upper support seat (7) is connected to the top of the lower support seat (6); the lower support seat (6) and the upper support seat (7) are sleeved on the outside of the universal joint roller (2); and one side of the lower support seat (6) and the upper support seat (7) are both provided with an elastic support structure.

2. The broken shaft protection device for a frame roller motor according to claim 1, characterized in that: A first semicircular groove (14) is provided in the middle of the upper end surface of the lower support seat (6) and in the middle of the lower end surface of the upper support seat (7).

3. A frame roller motor broken shaft protection device according to claim 2, characterized in that: Two screw rods (11) are fixed on both sides of the upper end surface of the lower support seat (6), and both sides of the upper support seat (7) are slidably sleeved on the two screw rods (11), and the upper ends of the two screw rods (11) are threaded with locking nuts (10).

4. A frame roller motor broken shaft protection device according to claim 3, characterized in that: The bottom ends of the two screw rods (11) are fixedly sleeved with support sleeves (12), and the upper support seat (7) is placed on the upper ends of the two support sleeves (12).

5. The broken shaft protection device for a frame roller motor according to claim 3 is characterized in that: The elastic support structure comprises connecting plates (15) respectively welded to one side of the lower support seat (6) and the upper support seat (7), and two T-shaped rods (16) are symmetrically inserted on the two connecting plates (15), and the ends of the two T-shaped rods (16) on the two connecting plates (15) are respectively connected to the protective blocks (9), and the second semicircular grooves (13) are formed on the opposite sides of the two protective blocks (9), and the part of the T-shaped rod (16) located between the connecting plate (15) and the protective block (9) is sleeved with a spring (17).

6. A frame roller motor broken shaft protection device according to claim 5, characterized in that: The radius of the first semicircular groove (14) is greater than the radius of the second semicircular groove (13).

7. The broken shaft protection device for a frame roller motor according to claim 1, characterized in that: Two rows of bolt holes (8) are provided on the rolling mill arch (4) at equal distances, and the lower support seat (6) is connected to two of the bolt holes (8) via bolts.

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