Tip-over combined lifting appliance for rolling mill bearing

Abstract

The utility model relates to the technical field of bearing lifting appliances, in particular to a tiltable combined lifting appliance of a rolling mill bearing, which comprises a fixed-distance pore plate, a pair of lifting arms are symmetrically hinged on the side surface of the fixed-distance pore plate, the side surfaces of the lifting arms are provided with limiting holes, and a screw rod pin shaft is hinged in one limiting hole in a limiting manner; a double-end lead screw is arranged on the inner side of the lead screw pin shaft and in the other limiting hole, the other end of the double-end lead screw is located on the two sides of the suspension arms and provided with a hexagonal fastening nut and a hexagonal distance nut in a threaded rotation mode, and a pin shaft pressing plate is fixed to one side of one suspension arm. The utility model solves the problems that the operation is troublesome and time is wasted because a steel wire rope or a lifting belt penetrates into the bearing or a ferrule to be lifted to a cleaning machine for cleaning due to the absence of a special lifting appliance when the existing bearing is horizontally placed and stored on a bedplate after being detached.

Description

Technical Field

[0001] This utility model relates to the field of bearing lifting equipment technology, specifically to a tiltable combination lifting equipment for rolling mill bearings. Background Technology

[0002] The rolling bearings installed in the work roll bearing housing of the hot rolling production line are expensive. After a period of use, the bearing housing must be disassembled, cleaned, inspected, measured and maintained to eliminate the potential risk of bearing burn-out and avoid various failures during production that may affect the rolling line production and cause incalculable losses. Therefore, efficient and safe maintenance is crucial to the safe operation of the work roll.

[0003] After the bearing is removed from the bearing housing, it is placed horizontally on the storage platform. The next step is to tilt the bearing and place it vertically in the corresponding cleaning tank of the bearing cleaning machine to clean the residual grease on the inner and outer rings and rolling elements of the bearing, so as to facilitate manual visual inspection and measurement. Since there is no special tilting and vertical lifting equipment, steel wire ropes or slings are currently used to thread through the inside of the bearing or the inner and outer rings and lift it into the cleaning machine. This operation is relatively troublesome and wastes time. Utility Model Content

[0004] The technical problem this invention aims to solve is that, when bearings are removed and placed horizontally on a storage platform, the lack of specialized lifting equipment means that steel wire ropes or slings are currently used to thread through the bearings or races to lift them to a cleaning machine for cleaning. This process is cumbersome and time-consuming.

[0005] To solve the above problems, the technical solution adopted by this utility model is a tiltable combined lifting device for rolling mill bearings, including a spacer plate. A pair of lifting arms are symmetrically hinged to the side of the spacer plate. Limiting holes are opened on the side of each lifting arm. A lead screw pin is hinged in one limiting hole. A double-ended lead screw is provided on the inner side of the lead screw pin and in the other limiting hole. The other end of the double-ended lead screw is located on both sides of the lifting arm and is respectively threaded with a hexagonal fastening nut and a hexagonal spacer nut. A pin pressure plate is fixed on one side of one lifting arm.

[0006] As a further embodiment of this utility model, the side of the fixed-distance perforation plate is provided with several pairs of through holes at different distances, which can accommodate bearings of different widths.

[0007] As a further embodiment of this invention, a liner is fixed to the inner side of the boom to protect the bearing.

[0008] As a further embodiment of this utility model: the side of the pin pressure plate is provided with a hole for the double-headed screw to pass through, and the diameter of the limiting hole and the hole is larger than the diameter of the double-headed screw, so as to facilitate the opening and closing of the boom.

[0009] As a further embodiment of this utility model: a screw lever is provided through the middle of the double-ended screw to facilitate the rotation of the double-ended screw.

[0010] As a further embodiment of this invention, the lead screw pin can be set at multiple angles in the limiting hole to facilitate the opening and closing of the boom.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. The liner on the boom helps protect the bearings;

[0013] 2. Foreign matter such as iron filings and cotton fibers remaining on the wire rope or sling may mix into the rolling elements of the bearing, causing the bearing to burn out during online use;

[0014] 3. The high-strength I-beam structure of the boom reduces the weight of the lifting equipment;

[0015] 4. A stable and safe working environment eliminates potential safety hazards during operations. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of bearing hoisting in a tilting combined lifting device for rolling mill bearings according to this utility model.

[0018] Figure 2 This is a perspective view of the overall structure of a tilting and modular lifting device for rolling mill bearings according to this utility model.

[0019] Figure 3 This is a cross-sectional view of the overall structure of a tilting combined lifting device for rolling mill bearings according to this utility model.

[0020] In the attached image:

[0021] 1. Spacing plate; 2. Lifting arm; 3. Lead screw pin; 4. Double-ended lead screw; 5. Hexagonal fastening nut; 6. Hexagonal spacing nut; 7. Pin pressure plate; 8. Liner plate; 9. Lead screw lever; 2.1. Limiting hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0024] Combined with appendix Figure 1-3 It can be seen that the device includes a fixed-distance perforated plate 1. A pair of booms 2 are symmetrically hinged on the side of the fixed-distance perforated plate 1. Each boom 2 has a limit hole 2.1 on its side. A lead screw pin 3 is hinged in one limit hole 2.1. A double-ended lead screw 4 is provided inside the lead screw pin 3 and in the other limit hole 2.1. The other end of the double-ended lead screw 4 is located on both sides of the boom 2 and is respectively threaded with a hexagonal fastening nut 5 and a hexagonal fixed-distance nut 6. A pin pressure plate 7 is fixed on one side of one boom 2.

[0025] The fixed-distance perforated plate 1 has several pairs of through holes at different distances on its side to accommodate bearings of different widths; the inner side of the boom 2 is fixed with a liner 8 to protect the bearings; the side of the pin pressure plate 7 has a hole for the double-ended lead screw 4 to pass through, the limiting hole 2.1 has a diameter larger than the diameter of the double-ended lead screw 4 to facilitate the opening and closing of the boom 2; the double-ended lead screw 4 has a lead screw lever 9 passing through its middle to facilitate the rotation of the double-ended lead screw 4; the lead screw pin 3 can be set at multiple angles in the limiting hole 2.1 to facilitate the opening and closing of the boom 2.

[0026] The working principle of this application is as follows: the boom 2 is a machined part made of high-strength boom-type steel. The two clamping bearings are designed with MC nylon pads or copper liners 8 to protect the bearings and prevent impact and collision damage. Rotating the lead screw lever 9 or using a wrench to rotate the hexagonal fastening nuts 5 and hexagonal distance nuts 6 at both ends of the double-ended lead screw 4 can open or close the boom 2, clamping the bearings to prevent them from scattering. The inner and outer rings and rolling elements can also be lifted separately. One end of the double-ended lead screw 4 can rotate around the lead screw pin 3, and the other end can swing in the groove of the boom 2 on the same side. The holes at different positions on the distance plate 1 are adapted to bearings of different thicknesses. Removing the boom pin bolts allows the boom 2 to be installed in different positions.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A tilting and modular lifting device for rolling mill bearings, characterized in that: Includes a fixed-distance perforated plate (1), on which a pair of booms (2) are symmetrically hinged, and each boom (2) has a limit hole on its side. 2.1) A screw pin (3) is hinged in a limiting hole (2.1). A double-headed screw (4) is provided in the inner side of the screw pin (3) and another limiting hole (2.1). The other end of the double-headed screw (4) is provided with a hexagonal fastening nut (5) and a hexagonal distance nut (6) respectively on both sides of the boom (2). A pin pressure plate (7) is fixed on one side of the boom (2).

2. The tilting and modular lifting device for rolling mill bearings according to claim 1, characterized in that: The fixed-distance perforated plate (1) has several pairs of through holes at different distances on its side.

3. The tilting and modular lifting device for rolling mill bearings according to claim 1, characterized in that: A liner plate (8) is fixed to the inside of the boom (2).

4. The tilting and modular lifting device for rolling mill bearings according to claim 1, characterized in that: The pin pressure plate (7) has a hole on its side for the double-ended lead screw (4) to pass through. The limiting hole (2.1) has a diameter larger than that of the double-ended lead screw (4).

5. The tilting and modular lifting device for rolling mill bearings according to claim 1, characterized in that: The double-ended lead screw (4) is provided with a lead screw lever (9) running through the middle.

6. The tilting and modular lifting device for rolling mill bearings according to claim 1, characterized in that: The lead screw pin (3) can be set at multiple angles in the limiting hole (2.1).

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