Split locking device for double-row tapered roller bearing transportation

Abstract

This utility model provides a split locking device for transporting double-row tapered roller bearings, including a fixing sleeve and a pressure plate. The outer ring of the double-row tapered roller bearing has a positioning hole. The fixing sleeve is a double-layered annular cylinder, consisting of a large annular cylinder and a small annular cylinder, with the small annular cylinder positioned within the positioning hole and matching the hole. The pressure plate is L-shaped, with its first inner surface contacting the outer circumferential surface of the outer ring of the double-row tapered roller bearing, its second inner surface contacting the end face of the inner ring of the double-row tapered roller bearing, and also contacting the end face of the large annular cylinder. At least four locking devices are provided, evenly distributed across both ends of the double-row tapered roller bearing. This device can prevent surface bumps and scratches on double-row tapered roller bearings with dimensions exceeding 2 meters during transport.

Description

Technical Field

[0001] This utility model belongs to the technical field of double-row tapered roller bearings, and in particular, it is a split locking device for transporting double-row tapered roller bearings. Background Technology

[0002] TRDO type double-row tapered roller bearings can withstand heavy radial loads and axial loads in both directions, and possess high rigidity. These bearings are commonly used in gearboxes, lifting equipment, rolling mills, and mining machinery. In the production of TRDO type double-row tapered roller bearings, the transportation process is crucial when the bearing's dimensions exceed 2 meters. Surface bumps and scratches are common during transportation. To avoid this, a split-type locking device for transporting double-row tapered roller bearings was designed. Long-term application verification has shown excellent results, significantly reducing customer dissatisfaction. Utility Model Content

[0003] In view of the above problems, the purpose of this application is to provide a split locking device for transporting double-row tapered roller bearings, so as to avoid surface bumps and scratches on TRDO type double-row tapered roller bearings with an external dimension of more than 2 meters during transportation.

[0004] To achieve some or all of the above objectives or other objectives, this application provides the following technical solution: a split locking device for transporting double-row tapered roller bearings, wherein a positioning hole is provided on the outer ring of the double-row tapered roller bearing, characterized in that: the locking device includes a fixed sleeve and a pressure plate; the fixed sleeve is a double-layered annular cylinder, namely a large annular cylinder and a small annular cylinder, the small annular cylinder is disposed in the positioning hole, and the small annular cylinder matches the positioning hole; the pressure plate is L-shaped, the first inner surface of the pressure plate contacts the outer circumferential surface of the outer ring of the double-row tapered roller bearing, the second inner surface of the pressure plate contacts the end face of the inner ring of the double-row tapered roller bearing, and the second inner surface of the pressure plate also contacts the end face of the large annular cylinder.

[0005] Furthermore, there are at least four locking devices, which are evenly distributed in a staggered manner on both end faces of the double-row tapered roller bearing.

[0006] Furthermore, it also includes bolts and nuts; a first through hole is provided on the central shaft of the fixing sleeve, and a second through hole is provided on the pressure plate. The first and second through holes are interconnected and both the first and second through holes are matched with bolts; the bolt passes through the positioning hole, the first through hole, and the second through hole in sequence; the nut is placed on the bolt near the outside of the pressure plate; the small annular cylinder of the fixing sleeve matches the positioning hole, and the first through hole is aligned with the positioning hole.

[0007] Furthermore, it also includes a first anti-loosening washer and a second anti-loosening washer; the first anti-loosening washer is fitted onto the bolt and located outside the positioning hole, one side of the first anti-loosening washer is in contact with the bolt head, and the other side is in close contact with the outer ring end face of the double-row tapered roller bearing; the outer diameter of the first anti-loosening washer is larger than the diameter of the positioning hole; the second anti-loosening washer is fitted onto the bolt and located outside the pressure plate, one side of which is in contact with the nut, and the other side is in close contact with the pressure plate.

[0008] Furthermore, the bolt is an M16 high-strength bolt, and the nut is an M16 high-strength nut.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This application is a split locking device for transporting double-row tapered roller bearings. It is applied to the transportation process of TRDO type double-row tapered roller bearings. By installing the fixing sleeve and pressure plate, it can avoid the phenomenon of surface bumps and scratches on TRDO type double-row tapered roller bearings with an outer dimension of more than 2 meters during transportation. The cost is low, the structure is simple, and the installation and disassembly process is simple and easy to operate. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 The left view of the bearing in Example 1 with only the first locking device installed; Figure 3 This is a right view of the bearing in Example 1 with only the second locking device installed; Figure 4 Front view of the bearing with locking device No. 1 and locking device No. 2 installed; Figure 5 This is a schematic diagram of a nut; Figure 6 This is a schematic diagram of a fixed sleeve; Figure 7 This is a schematic diagram of the pressure plate; Figure 8 Left view of the pressure plate; Figure 9 This is a left view of the bearing in Example 2 with only the first locking device installed; Figure 10 Left view of the bearing mounting locking device No. 1 and No. 2 in Example 2; In the diagram: 00, double-row tapered roller bearing; 1, inner ring; 2, outer ring; 16, locating hole; 31, bolt; 32, nut; 331, anti-loosening washer No. 1; 332, anti-loosening washer No. 2; 34, fixing sleeve; 35, pressure plate; 36, locking device No. 1; 37, locking device No. 2. Detailed Implementation

[0011] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Example 1

[0012] See appendix Figure 1-8 A split locking device for transporting double-row tapered roller bearings is disclosed. The outer ring 2 of the double-row tapered roller bearing 00 has a positioning hole 16 inside. The device includes a fixing sleeve 34 and a pressure plate 35. The fixing sleeve 34 is a double-layered annular cylinder, consisting of a large annular cylinder and a small annular cylinder. The small annular cylinder is positioned within the positioning hole 16 and mates with it. This mating ensures that the through hole on the axis of the fixing sleeve 34 naturally aligns with the positioning hole 16. The pressure plate 35 is L-shaped. The first inner surface of the pressure plate 35 contacts the outer circumferential surface of the outer ring 2 of the double-row tapered roller bearing 00. The radius of curvature R1 of the first inner surface of the pressure plate 35 is the same as the radius of curvature of the outer circumferential surface of the outer ring 2 of the double-row tapered roller bearing 00, ensuring surface contact. The angle between the second inner surface of the pressure plate 35 and the first inner surface is 90°, ensuring surface contact between the second inner surface of the pressure plate 35 and the end face of the inner ring of the bearing. The second inner surface of the pressure plate 35 contacts the end face of the inner ring 1 of the double-row tapered roller bearing 00, and also contacts the end face of the large annular cylinder.

[0013] The locking device comprises at least four devices, which are evenly distributed in a staggered manner on both ends of the double-row tapered roller bearing 00.

[0014] The locking device includes a first locking device 36 and a second locking device 37. The first locking device 36 is disposed on one end face of the double-row tapered roller bearing 00, and the second locking device 37 is disposed on the other end face of the double-row tapered roller bearing 00.

[0015] In this embodiment, there are four locking devices 36 and four locking devices 37.

[0016] This invention can also be applied to the transportation of TRDO type double-row tapered roller bearings of different sizes. As long as the second inner side of the pressure plate 35 contacts the end face of the inner ring 1 of the double-row tapered roller bearing 00, and the second inner side of the pressure plate 35 contacts the end face of the large annular cylinder, it can be repeatedly used in the transportation of TRDO type double-row tapered roller bearings of different sizes.

[0017] It also includes bolts 31 and nuts 32; a first through hole is provided on the central axis of the fixing sleeve 34, and a second through hole is provided on the pressure plate 35. The first and second through holes are connected and both the first and second through holes match the bolts 31; the bolts 31 pass through the positioning hole 16, the first through hole, and the second through hole in sequence; the nuts 32 are provided on the bolts 31 near the outside of the pressure plate 35; the small annular cylinder of the fixing sleeve 34 matches the positioning hole 16, and the first through hole is aligned with the positioning hole 16.

[0018] It also includes a first anti-loosening washer 331 and a second anti-loosening washer 332; the first anti-loosening washer 331 is sleeved on the bolt 31 and located outside the positioning hole 16. One side of the first anti-loosening washer 331 contacts the bolt head of the bolt 31, and the other side is tightly attached to the outer ring end face of the double row tapered roller bearing 00; the outer diameter of the first anti-loosening washer 331 is larger than the diameter of the positioning hole 16 to prevent it from falling into the hole; the second anti-loosening washer 332 is sleeved on the bolt 31 and located outside the pressure plate 35. One side of it contacts the nut 32, and the other side is tightly attached to the pressure plate 35.

[0019] The bolt 31 is an M16 high-strength bolt, and the nut 32 is an M16 high-strength nut.

[0020] The installation steps are as follows: First, place the double-row tapered roller bearing 00 horizontally; with one end of the double-row tapered roller bearing 00 facing upwards, insert the small annular cylinder of the fixing sleeve 34 of one of the locking devices 36 axially into the positioning hole 16; insert the bolt 31, fitted with the first anti-loosening washer 331, from the end of the positioning hole 16 away from the fixing sleeve 34; fit the pressure plate 35 snugly onto the double-row tapered roller bearing 00 and the fixing sleeve 34. Crucially, when the first inner surface of the pressure plate 35 contacts the outer diameter of the outer ring 2, appropriate measures must be taken to prevent the locking device from wearing the outer diameter; sequentially fit the second anti-loosening washer 332 and the nut 32 onto the bolt 31; finally, adjust the assembly clearance between the bolt 31, the first anti-loosening washer 331, the second anti-loosening washer 332, the fixing sleeve 34, and the pressure plate 35, and apply 80~100 mm torque to the nut 32 using a torque wrench. A preload of N·m ensures reliable locking without damaging bearing components.

[0021] Install other locking devices 36 evenly distributed.

[0022] Turn the bearing over so that the other end of the double-row tapered roller bearing 00 faces upward. Repeat the above steps to install several locking devices 37 to lock the double-row tapered roller bearing 00.

[0023] This invention can also be applied to the transportation of TRDO type double-row tapered roller bearings of different sizes. It only requires replacing the fixing sleeve 34 and pressure plate 35 with those that match the bearing outer diameter and positioning hole size. It has good versatility and can be reused. Example 2

[0024] See appendix Figure 9-10 In this embodiment, there are eight locking devices 36 and eight locking devices 37 respectively, such as... Figure 10 As shown, the two ends of the double-row tapered roller bearing are evenly distributed in an alternating pattern. The implementation methods of other parts of the technical solution are the same as those in Example 1.

[0025] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A split locking device for transporting double-row tapered roller bearings, wherein a positioning hole (16) is provided on the outer ring of the double-row tapered roller bearing (00), characterized in that: The locking device includes a fixed sleeve (34) and a pressure plate (35); the fixed sleeve (34) is a double-layered annular cylinder, namely a large annular cylinder and a small annular cylinder, the small annular cylinder is set in the positioning hole (16), and the small annular cylinder matches the positioning hole (16); the pressure plate (35) is L-shaped, the first inner side of the pressure plate (35) contacts the outer circumferential surface of the outer ring of the double-row tapered roller bearing (00), the second inner side of the pressure plate (35) contacts the end face of the inner ring of the double-row tapered roller bearing (00), and the second inner side of the pressure plate (35) also contacts the end face of the large annular cylinder.

2. The split locking device for transporting double-row tapered roller bearings according to claim 1, characterized in that: The locking device comprises at least four devices, which are evenly distributed in a staggered manner on both end faces of the double-row tapered roller bearing.

3. The split locking device for transporting double-row tapered roller bearings according to claim 1, characterized in that: It also includes bolts (31) and nuts (32); a first through hole is provided on the central axis of the fixed sleeve (34), and a second through hole is provided on the pressure plate (35). The first through hole and the second through hole are connected and both the first through hole and the second through hole are matched with the bolt (31); the bolt (31) passes through the positioning hole (16), the first through hole and the second through hole in sequence; the nut (32) is set on the bolt (31) near the outside of the pressure plate (35); the small annular cylinder of the fixed sleeve (34) matches the positioning hole (16), and the first through hole is aligned with the positioning hole (16).

4. The split locking device for transporting double-row tapered roller bearings according to claim 3, characterized in that: It also includes a first anti-loosening washer (331) and a second anti-loosening washer (332); the first anti-loosening washer (331) is fitted on the bolt (31) and located outside the positioning hole (16). One side of the first anti-loosening washer (331) is in contact with the bolt head (31), and the other side is close to the outer ring end face of the double-row tapered roller bearing (00); the outer diameter of the first anti-loosening washer (331) is larger than the diameter of the positioning hole (16); the second anti-loosening washer (332) is fitted on the bolt (31) and located outside the pressure plate (35). One side of it is in contact with the nut (32), and the other side is close to the pressure plate (35).

5. A split locking device for transporting double-row tapered roller bearings according to claim 3, characterized in that: The bolt (31) is an M16 high-strength bolt, and the nut (32) is an M16 high-strength nut.

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