Detachable and balance-adjustable lifting appliance for steel rolling speed reducer

Abstract

The utility model discloses a detachable and balance-adjustable lifting appliance for a steel rolling speed reducer, belongs to the technical field of profile steel rolling, and solves the problem that the conventional steel rolling speed reducer is inclined during lifting. The lifting appliance comprises a lifting rod, external threads are formed in the outer surface of the lifting rod, a rubber sleeve is arranged on the lifting rod in a sleeving mode, locking assemblies used for preventing the steel rolling speed reducer from moving are arranged on the two sides of the rubber sleeve, and the two ends of the lifting rod are in threaded connection with first locking round nuts with the retaining function. A hexagon nut is connected to the portion, on the outer side of the first locking round nut, of the hanging rod in a threaded mode, a hanging lug is arranged between the hexagon nut and the first locking round nut, and auxiliary devices used for assisting in fixing the steel rolling speed reducer are arranged at the two ends of the hanging rod. According to the detachable and balance-adjustable lifting appliance for the steel rolling speed reducer, the problem that a traditional lifting appliance cannot achieve balance is solved, and the situation that the lifting effect is affected due to deviation in the lifting process is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of section steel rolling, in particular to a lifting tool for detachable and balance adjustment of a steel rolling speed reducer. Background Art

[0002] In the section steel rolling process, the periodic or accidental replacement of large-scale speed reducers used for steel rolling is an indispensable part of daily maintenance. The horizontal speed reducer required for rough rolling of steel has a large required torque, and its basic volume and weight are relatively large. During the replacement process, the lifting points used in traditional lifting cannot be adjusted after passing through the steel wire ropes, and the balance of the speed reducer during lifting cannot be achieved. Inevitably, tilting will occur, posing a certain safety risk to ground staff. During the installation of the speed reducer anchor bolts, repeated adjustments are required, which greatly wastes manpower and material resources, and the maintenance quality and the overall maintenance time required are greatly restricted. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a lifting tool for detachable and balance adjustment of a steel rolling speed reducer aiming at the above deficiencies of the prior art, solve the problem that the traditional lifting tool cannot achieve balance, effectively prevent deviation during lifting and affect the lifting effect, improve the safety and reliability during the lifting process, and has the characteristics of wide application range and strong practicability.

[0004] The technical solution adopted by the utility model is: a lifting tool for detachable and balance adjustment of a steel rolling speed reducer, including a suspension rod, an external thread is provided on the outer surface of the suspension rod, a rubber sleeve is sleeved on the suspension rod, locking components for preventing the movement of the steel rolling speed reducer are provided on both sides of the rubber sleeve, first locking round nuts with a back-off prevention function are threadedly connected to both ends of the suspension rod, a hexagonal nut is threadedly connected to the suspension rod outside the first locking round nut, a lifting lug is provided between the hexagonal nut and the first locking round nut, and auxiliary devices for assisting in fixing the steel rolling speed reducer are provided at both ends of the suspension rod.

[0005] As a further improvement, the locking component includes a back-off prevention pad and a second locking round nut, the second locking round nut is threadedly connected to the suspension rod, and the back-off prevention pad is sleeved on the suspension rod between the rubber sleeve and the second locking round nut.

[0006] Further, the auxiliary device includes a first hook, a second hook and an elastic cord, the first hook and the second hook are respectively connected to both ends of the elastic cord, hanging holes are provided at both ends of the suspension rod, and the first hook is hung on the hanging hole.

[0007] Further, rubber pads are provided between the lifting lug and the first locking round nut and the hexagonal nut respectively.

[0008] Furthermore, a lifting hole is formed in the lifting lug, and rubber pads are installed on both the outer side and the inner side of the lifting hole.

[0009] Beneficial effects

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] For the detachable and balance-adjustable lifting tool of a rolling mill reducer of the utility model, first, a suspension rod is installed through the lifting hole of the rolling mill reducer. After the suspension rod is installed, a check washer and a second locking round nut are first installed on both sides of the suspension rod. Then, the rolling mill reducer is adjusted to a balanced position on the suspension rod, and then locked by adjusting the second locking round nuts on both sides. Immediately afterwards, the first locking round nuts are installed at both ends, then the lifting lug and the rubber pad are installed, and finally the hexagonal nut on the outer side is installed. After all the installations, the position of the lifting lug is fixed and there will be no axial movement. When hoisting, the rolling mill reducer is in a balanced position on the suspension rod, effectively reducing the abnormal maintenance caused by imbalance during the hoisting of the reducer, increasing the safety and stability during the hoisting process. The device has a simple structure and a low manufacturing cost. It can be disassembled at any time after installation, can be mass-produced and installed on the reducer, and has the characteristics of convenient use and wide application range. Description of the drawings

[0012] Figure 1 It is the front view structural schematic diagram of the utility model.

[0013] Wherein: 1 - suspension rod, 2 - locking assembly, 3 - auxiliary device, 4 - rubber sleeve, 5 - first locking round nut, 6 - lifting lug, 7 - hexagonal nut, 8 - lifting hole, 9 - hanging hole, 10 - rubber pad, 11 - rubber sheet pad, 21 - check washer, 22 - second locking round nut, 31 - first hook, 32 - rubber cord, 33 - second hook. Specific embodiments

[0014] The following further describes the utility model with reference to the specific embodiments in the drawings.

[0015] Refer to Figure 1As shown in the figure, a hoist for a rolling mill reducer that can be disassembled and balanced adjusted includes a suspension rod 1. The outer surface of the suspension rod 1 is provided with an external thread. A rubber sleeve 4 is sleeved on the suspension rod 1. Locking assemblies 2 for preventing the rolling mill reducer from moving are provided on both sides of the rubber sleeve 4. First locking round nuts 5 with anti-back-off functions are threadedly connected to both ends of the suspension rod 1. A hexagonal nut 7 is threadedly connected to the suspension rod 1 outside the first locking round nut 5. A lifting lug 6 is provided between the hexagonal nut 7 and the first locking round nut 5. Auxiliary devices 3 for assisting in fixing the rolling mill reducer are provided at both ends of the suspension rod 1. First, the suspension rod 1 is installed through the lifting holes of the rolling mill reducer. After the suspension rod 1 is installed, first install the anti-back-off pad 21 and the second locking round nut 22 on both sides of the suspension rod 1. Then adjust the rolling mill reducer to the balanced position on the suspension rod 1, and then lock it by adjusting the second locking round nuts 22 on both sides. Immediately afterwards, install the first locking round nuts 5 at both ends, then install the lifting lug 6 and the rubber pad 10, and finally install the hexagonal nut 7 on the outside. After all are installed, the position of the lifting lug 6 is fixed and will not move axially. When hoisting, the rolling mill reducer is in the balanced position on the suspension rod 1, effectively reducing the abnormal maintenance caused by imbalance during the hoisting of the reducer, and increasing the safety and stability during the hoisting process. The device has a simple structure and a low manufacturing cost. It can be disassembled at any time after installation, can be mass-produced and installed on the reducer. By setting the rubber sleeve 4, it is used to pad in the lifting hole of the rolling mill reducer to protect the external thread from damage and extend the service life.

[0016] Specifically, the locking assembly 2 includes an anti-back-off pad 21 and a second locking round nut 22. The second locking round nut 22 is threadedly connected to the suspension rod 1. The anti-back-off pad 21 is sleeved on the suspension rod 1 between the rubber sleeve 4 and the second locking round nut 22. Install the anti-back-off pad 21 and the second locking round nut 22 on both sides of the suspension rod 1. Then adjust the rolling mill reducer to the balanced position on the suspension rod 1, and then lock it by adjusting the second locking round nuts 22 on both sides. The combined action of the second locking round nut 22 and the anti-back-off pad 21 effectively prevents movement during hoisting.

[0017] Preferably, the auxiliary device 3 includes a first hook 31, a second hook 33 and a rubber cord 32. The first hook 31 and the second hook 33 are respectively connected to both ends of the rubber cord 32. Hanging holes 9 are provided at both ends of the suspension rod 1. The first hook 31 is hung on the hanging hole 9. The second hook 33 is used to hook the edges on both sides of the rolling mill reducer. Under the traction of the rubber cord 32, it effectively prevents the rolling mill reducer from shaking during hoisting and improves the stability of hoisting.

[0018] Furthermore, rubber pads 10 are provided between the lifting lug 6 and the first locking round nut 5 and the hexagonal nut 7 respectively, making the first locking round nut 5 and the hexagonal nut 7 screwed more tightly. When the lifting lug 6 is hoisted, it prevents the hexagonal nut 7 from coming off, and the safety is better.

[0019] Further, a lifting hole 8 is formed in the lifting lug 6, and rubber pads 11 are installed on both the outer side and the inner side of the lifting hole 8, effectively preventing scratches caused by wire ropes, etc. after being stressed.

[0020] When the lifting device for the detachable and balance-adjustable rolling mill speed reducer of this embodiment is in use, first, the lifting rod 1 is installed through the lifting hole of the rolling mill speed reducer. After the lifting rod 1 is installed, first install the anti-backlash pad 21 and the second locking round nut 22 on both sides of the lifting rod 1, then adjust the rolling mill speed reducer to the balanced position on the lifting rod 1, and then lock it by adjusting the second locking round nuts 22 on both sides. Immediately install the first locking round nuts 5 at both ends, then install the lifting lugs 6 and the rubber pads 10, and finally install the hexagonal nuts 7 on the outside. After all the installations, the position of the lifting lug 6 is fixed and will not move axially. During hoisting, the rolling mill speed reducer is in the balanced position on the lifting rod 1, effectively reducing the abnormal maintenance caused by imbalance during the hoisting of the speed reducer, increasing the safety and stability during the hoisting process. The device has a simple structure and a low manufacturing cost. It can be disassembled at any time after installation, can be mass-produced and installed on the speed reducer. By setting the rubber sleeve 4, it is used to pad in the lifting hole of the rolling mill speed reducer to protect the external thread from damage and extend the service life. The lifting device for the detachable and balance-adjustable rolling mill speed reducer of the present invention uses the balance device in the lifting device to reach the balance point, solves the problem that the balance cannot be achieved due to the limitation of the lifting point of the traditional lifting device, and at the same time designs a translation locking balance device for the lifting device to prevent deviation during hoisting and affect the hoisting. This lifting device pays more attention to the reliability of safety performance.

[0021] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A sling for a steel rolling reducer that can be disassembled and adjusted for balance, characterized in that: The invention comprises a suspension rod (1), wherein the outer surface of the suspension rod (1) is provided with an external thread, the suspension rod (1) is provided with a rubber sleeve (4), both sides of the rubber sleeve (4) are provided with locking components (2) for preventing the steel rolling reducer from moving, both ends of the suspension rod (1) are threadedly connected with a first locking circular nut (5) with a stop function, a hexagonal nut (7) is threadedly connected to the suspension rod (1) outside the first locking circular nut (5), a lifting ear (6) is provided between the hexagonal nut (7) and the first locking circular nut (5), and both ends of the suspension rod (1) are provided with auxiliary devices (3) for auxiliary fixing of the steel rolling reducer.

2. The detachable and balance-adjustable hanger for a steel rolling reducer according to claim 1, characterized in that: The locking assembly (2) comprises a backstop washer (21) and a second locking circular nut (22), wherein the second locking circular nut (22) is threadedly connected to the suspension rod (1), and the backstop washer (21) is sleeved on the suspension rod (1) between the rubber sleeve (4) and the second locking circular nut (22).

3. The detachable and balance-adjustable hanger for a steel rolling reducer according to claim 1, characterized in that: The auxiliary device (3) comprises a first hook (31), a second hook (33) and a rubber rope (32); the first hook (31) and the second hook (33) are respectively connected to two ends of the rubber rope (32); both ends of the suspension rod (1) are provided with hanging holes (9), and the first hook (31) is hung on the hanging holes (9).

4. The detachable and balance-adjustable hanger for a steel rolling reducer according to claim 1, characterized in that: A rubber pad (10) is provided between the lifting ear (6) and the first locking round nut (5) and the hexagonal nut (7).

5. The detachable and balance-adjustable hanger for a steel rolling reducer according to claim 1, characterized in that: The lifting ear (6) is provided with a lifting hole (8), and rubber pads (11) are installed on the outer side and the inner side of the lifting hole (8).

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