Locking device for preventing double-row tapered roller bearing from being separated during transportation

Abstract

The invention provides a locking device for preventing a double-row tapered roller bearing from being separated during transportation. The locking device comprises a fixed sleeve and a pressing plate, an axial positioning hole is formed in the outer ring of the double-row tapered roller bearing; the fixing sleeve is a double-layer annular cylinder, namely a large annular cylinder and a small annular cylinder, and the small annular cylinder is arranged in the positioning hole and matched with the positioning hole; the pressing plate is in an L shape, the first face of the inner side of the pressing plate makes contact with the peripheral face of the outer ring of the double-row tapered roller bearing, and the second face of the inner side of the pressing plate makes contact with the end face of the inner ring of the double-row tapered roller bearing and further makes contact with the end face of the large annular cylinder. And the phenomena of surface collision and surface scratch of the double-row tapered roller bearing of which the boundary dimension is more than 2 meters during transportation can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of double-row tapered roller bearings, in particular to a locking device for preventing a double-row tapered roller bearing from being separated during transportation. Background Art

[0002] TRDO double-row tapered roller bearings can withstand heavy radial loads, axial loads in two directions and have high rigidity. This type of bearing is usually used in gearboxes, lifting equipment, rolling mills and mining machinery. In the production of TRDO double-row tapered roller bearings, when the overall size is more than 2 meters, the product transportation link is very important. Usually during transportation, surface bumps and scratches are prone to occur. In order to avoid this phenomenon, a complete set of non-standard transportation split locking devices is designed. After long-term application verification, the effect is very good and greatly reduces dissatisfaction. Summary of the invention

[0003] In view of the above problems, the purpose of this application is to provide a locking device to prevent the separation of double-row tapered roller bearings during transportation, so that TRDO-shaped double-row tapered roller bearings with an outer dimension of more than 2 meters can be prevented from surface bumps and scratches during transportation.

[0004] To achieve some or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: a locking device for preventing a double-row tapered roller bearing from being transported separately, comprising a fixed sleeve and a pressure plate; an axial positioning hole is arranged inside the outer ring of the double-row tapered roller bearing; the fixed sleeve is a double-layer annular cylinder, namely a large annular cylinder and a small annular cylinder, the small annular cylinder is arranged 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, it also includes bolts and nuts; a No. 1 through hole is provided on the central axis of the fixing sleeve, and a No. 2 through hole is provided on the pressure plate, and the No. 1 through hole and the No. 2 through hole are connected, and both the No. 1 through hole and the No. 2 through hole match the bolt; the bolt passes through the positioning hole, the No. 1 through hole and the No. 2 through hole in sequence; the nut is arranged on the bolt close to the outer side of the pressure plate.

[0006] Furthermore, it also includes a No. 1 anti-loosening gasket and a No. 2 anti-loosening gasket, wherein the No. 1 anti-loosening gasket and the No. 2 anti-loosening gasket are arranged on the bolt, the No. 1 anti-loosening gasket contacts the bolt head, the diameter of the No. 1 anti-loosening gasket is larger than the diameter of the positioning hole, and the No. 2 anti-loosening gasket contacts the nut.

[0007] Furthermore, the bolt is an M16 high-strength bolt, and the nut is an M16 high-strength nut.

[0008] Furthermore, there are at least four locking devices, and the locking devices are evenly distributed on the outer ring and the inner ring of one end of the double-row tapered roller bearing.

[0009] Furthermore, the installation steps are as follows: first, place the double-row tapered roller bearing horizontally; install the small annular cylinder of the fixed sleeve into the positioning hole axially; insert the bolt with a No. 1 anti-loosening gasket into the end of the positioning hole away from the fixed sleeve; fit the pressure plate onto the double-row tapered roller bearing and the fixed sleeve; put the No. 2 anti-loosening gasket and the nut on the bolt in sequence; finally, adjust the assembly clearance between the bolt, No. 1 anti-loosening gasket, No. 2 anti-loosening gasket, fixed sleeve and pressure plate, and apply preload after adjustment.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present application is a complete set of non-standard transport split locking devices, which are applied to the transportation link of TRDO double-row tapered roller bearings. By installing a fixed sleeve and a pressure plate, the surface bumps and scratches of TRDO double-row tapered roller bearings with an outer size of more than 2 meters can be avoided during transportation. The finished product is low, the structure is simple, and the installation and disassembly process is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a left view of the structure of the present invention; Figure 3 It is a schematic diagram of a nut; Figure 4 is a schematic diagram of a fixed sleeve; Figure 5 It is a schematic diagram of the pressure plate; Figure 6 It is the left view of the pressure plate; In the figure: 00, double-row tapered roller bearing; 00-1, inner ring; 00-2, outer ring; 00-16, positioning hole; 31, bolt; 32, nut; 33-1, No. 1 anti-loosening washer; 33-2, No. 2 anti-loosening washer; 34, fixing sleeve; 35, pressure plate. DETAILED DESCRIPTION

[0012] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0013] See attached Figure 1-6, a locking device for preventing the double-row tapered roller bearing from being separated during transportation, comprises a fixing sleeve 34 and a pressing plate 35; an axial positioning hole 00-16 is arranged inside the outer ring 00-2 of the double-row tapered roller bearing 00; the fixing sleeve 34 is a double-layer annular cylinder, which comprises a large annular cylinder and a small annular cylinder, and the small annular cylinder is arranged in the positioning hole 00-16, and the small annular cylinder matches the positioning hole 00-16; the pressing plate 35 is L-shaped, and the first inner surface of the pressing plate 35 contacts the outer circumferential surface of the outer ring 00-2 of the double-row tapered roller bearing 00, and the second inner surface of the pressing plate 35 contacts the end surface of the inner ring 00-1 of the double-row tapered roller bearing 00, and the second inner surface of the pressing plate 35 also contacts the end surface of the large annular cylinder.

[0014] Furthermore, the present invention can also be applied to the transportation link of TRDO type double row tapered roller bearings of different sizes. As long as the second inner surface of the pressure plate 35 contacts the end face of the inner ring 00-1 of the double row tapered roller bearing 00, and the second inner surface of the pressure plate 35 contacts the end face of the large annular cylinder, it can be repeatedly used in the transportation link of TRDO type double row tapered roller bearings of different sizes.

[0015] Furthermore, it also includes a bolt 31 and a nut 32; a No. 1 through hole is set on the central axis of the fixing sleeve 34, and a No. 2 through hole is set on the pressure plate 35, and the No. 1 through hole and the No. 2 through hole are connected, and the No. 1 through hole and the No. 2 through hole are matched with the bolt 31; the bolt 31 passes through the positioning hole 00-16, the No. 1 through hole and the No. 2 through hole in sequence; the nut 32 is set on the bolt 31 close to the outer side of the pressure plate 35.

[0016] Furthermore, it also includes a No. 1 anti-loosening gasket 33-1 and a No. 2 anti-loosening gasket 33-2, and the No. 1 anti-loosening gasket 33-1 and the No. 2 anti-loosening gasket 33-2 are arranged on the bolt 31, the No. 1 anti-loosening gasket 33-1 is in contact with the bolt head of the bolt 31, the diameter of the No. 1 anti-loosening gasket 33-1 is larger than the diameter of the positioning hole 00-16, and the No. 2 anti-loosening gasket 33-2 is in contact with the nut 32.

[0017] Furthermore, the bolt 31 is an M16 high-strength bolt, and the nut 32 is an M16 high-strength nut.

[0018] Furthermore, there are at least four locking devices, which are evenly distributed on the outer ring 00 - 2 and the inner ring 00 - 1 at one end of the double-row tapered roller bearing 00 .

[0019] Furthermore, the installation steps are as follows: first, place the double-row tapered roller bearing 00 horizontally; install the small annular cylinder of the fixed sleeve 34 axially into the positioning hole 00-16; insert the bolt 31 with the No. 1 anti-loosening gasket 33-1 from the end of the positioning hole 00-16 away from the fixed sleeve 34; fit the pressure plate 35 on the double-row tapered roller bearing 00 and the fixed sleeve 34. The key is that when the first inner surface of the pressure plate 35 contacts the outer diameter of the outer ring 00-2, appropriate measures must be taken to prevent the locking device from wearing the outer diameter; put the No. 2 anti-loosening gasket 33-2 and the nut 32 on the bolt 31 in turn; finally, adjust the assembly clearance between the bolt 31, the No. 1 anti-loosening gasket 33-1, the No. 2 anti-loosening gasket 33-2, the fixed sleeve 34 and the pressure plate 35, and apply preload after adjustment.

[0020] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. Locking device to prevent double row tapered roller bearings from being separated during transportation. Features: The invention comprises a fixing sleeve (34) and a pressure plate (35); an axial positioning hole (00-16) is arranged inside the outer ring of the double-row tapered roller bearing (00); the fixing sleeve (34) is a double-layer annular cylinder, which comprises a large annular cylinder and a small annular cylinder; the small annular cylinder is arranged in the positioning hole (00-16), and the small annular cylinder matches the positioning hole (00-16); the pressure plate (35) is L-shaped; a first surface inside the pressure plate (35) contacts the outer peripheral surface of the outer ring of the double-row tapered roller bearing (00); a second surface inside the pressure plate (35) contacts the end surface of the inner ring of the double-row tapered roller bearing (00); and the second surface inside the pressure plate (35) also contacts the end surface of the large annular cylinder.

2. The locking device for preventing the double-row tapered roller bearing from being separated during transportation according to claim 1, Features: It also includes a bolt (31) and a nut (32); a No. 1 through hole is provided on the central axis of the fixing sleeve (34); a No. 2 through hole is provided on the pressing plate (35); the No. 1 through hole and the No. 2 through hole are connected, and both the No. 1 through hole and the No. 2 through hole match the bolt (31); the bolt (31) passes through the positioning hole (00-16), the No. 1 through hole and the No. 2 through hole in sequence; the nut (32) is provided on the bolt (31) near the outer side of the pressing plate (35).

3. The locking device for preventing the double-row tapered roller bearing from being separated during transportation according to claim 2, Features: It also comprises a No. 1 anti-loosening washer (33-1) and a No. 2 anti-loosening washer (33-2), wherein the No. 1 anti-loosening washer (33-1) and the No. 2 anti-loosening washer (33-2) are arranged on the bolt (31), the No. 1 anti-loosening washer (33-1) contacts the bolt head of the bolt (31), the diameter of the No. 1 anti-loosening washer (33-1) is greater than the diameter of the positioning hole (00-16), and the No. 2 anti-loosening washer (33-2) contacts the nut (32).

4. The locking device for preventing the double-row tapered roller bearing from being separated during transportation according to claim 1, Features: The bolt (31) is an M16 high-strength bolt, and the nut (32) is an M16 high-strength nut.

5. A locking device for preventing a double-row tapered roller bearing from being transported apart as claimed in any one of claims 1 to 4, Features: There are at least four locking devices, which are evenly distributed on the outer ring and the inner ring of one end of the double-row tapered roller bearing (00).

6. The method for installing the locking device for preventing the double-row tapered roller bearing from being separated during transportation according to claim 5, Features: The installation steps are as follows: first, place the double-row tapered roller bearing (00) horizontally; install the small annular cylinder of the fixed sleeve (34) into the positioning hole (00-16) along the axial direction; insert the bolt (31) with the No. 1 anti-loosening washer (33-1) from the end of the positioning hole (00-16) away from the fixed sleeve (34); fit the pressure plate (35) on the double-row tapered roller bearing (00) and the fixed sleeve (34); put the No. 2 anti-loosening washer (33-2) and the nut (32) on the bolt (31) in sequence; finally, adjust the assembly clearance between the bolt (31), the No. 1 anti-loosening washer (33-1), the No. 2 anti-loosening washer (33-2), the fixed sleeve (34) and the pressure plate (35), and apply the preload force after the adjustment is appropriate.

Images