Gear box tool

Abstract

The utility model relates to gear box installation equipment, in particular to a gear box tool. Comprising hanging rings and fixing bodies, the fixing body comprises a protruding part and plane parts, the plane parts are located on the two sides of the protruding part, and the bottom faces of the two plane parts are located on the same plane. The length of the fixing body corresponds to that of a gear shaft of the gear box; the plane part is provided with a bolt hole corresponding to a bearing seat threaded hole and a positioning pin hole; the lifting ring is connected with the lug boss; the two plane parts are connected with two bearing seats on the two sides of the gear shaft through bolts. Bearing seats on the two sides of a gear shaft can be fixed, bearings are prevented from being damaged, and the gearbox assembling progress and precision are guaranteed.

Description

Technical Field

[0001] The utility model relates to gear box installation equipment, in particular to a gear box tooling. Background Art

[0002] Gearbox is an important component widely used in mechanical transmission. It consists of two or more gears, including at least one driving gear with a certain diameter, which is connected to the driving device. The gearbox achieves acceleration and deceleration, changes the transmission direction, and changes the torque through the meshing of gears.

[0003] Since the spherical roller bearing has double-row rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle relative to the bearing axis. It has automatic self-aligning performance, so it is not easily affected by the angle error between the shaft and the bearing box seat or the shaft bending. It is suitable for occasions where the angle error is caused by installation error or shaft deflection. In addition to being able to withstand radial loads, this bearing can also withstand bidirectional axial loads.

[0004] The reducer and shear body of the high-speed wire rolling mill mostly use multi-stage transmission gearboxes, and the gearboxes generally use spherical roller bearings. During assembly, the bearings are first assembled in the bearing seat, then heated together, and finally assembled on the gear shaft. If the two sides of the gearbox are spherical roller bearings, the bearing seat will tilt when the shaft ends on both sides of the gear are lifted. The double-row rollers of the spherical roller bearing inside the bearing seat have a common spherical raceway on the outer ring and two raceways on the inner ring, which are tilted at an angle relative to the bearing axis. This angle is the angle at which the outer ring and bearing seat of the spherical bearing rotate with the cage and rolling element when the gear shaft is lifted alone, causing the rolling element to protrude from the side of the bearing, which is very easy to be squeezed and collided with the outer ring and cage, causing the cage to be damaged and the rolling element to fall off. At present, the gearbox with spherical roller bearings is not only easy to cause bearing damage during the installation and disassembly process, but also requires the bearing to be reinstalled, affecting the progress and accuracy of the gearbox assembly. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a gear box tooling, which can fix the bearing seats on both sides of the gear shaft to avoid damage to the bearings and ensure the progress and accuracy of the gear box assembly.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gear box tooling, comprising a lifting ring and a fixing body; the fixing body comprises a raised portion and a flat portion, the flat portions are located on both sides of the raised portion, and the bottom surfaces of the two flat portions are located in the same plane; the length of the fixing body corresponds to the length of the gear shaft of the gear box; the flat portion is provided with bolt holes corresponding to the threaded holes of the bearing seat, and is provided with a positioning pin hole; the lifting ring is connected to the raised portion; the two flat portions are connected to the two bearing seats on both sides of the gear shaft by bolts.

[0008] Furthermore, the protrusion is a U-shaped plate.

[0009] Furthermore, the plane portion is a flat plate.

[0010] Further, the lifting ring can move between the two plane parts.

[0011] Furthermore, it also includes a threaded rod, a nut and a lifting ring; the threaded rod is a U-shaped rod, the threaded rod is fixedly connected to the upper surface of the raised portion, an external thread is provided in the middle of the threaded rod, the nut is threadedly connected to the threaded rod, and the lifting ring is fixedly connected to the nut.

[0012] Furthermore, two bolt holes and two positioning pin holes are provided on the planar portion.

[0013] Furthermore, after the two planar portions are connected to the two bearing seats on both sides of the gear shaft by bolts, a gap is left between the inner surface of the raised portion and the end surface of the gear.

[0014] Compared with the prior art, the utility model has at least the following technical effects or advantages:

[0015] 1. The utility model includes a lifting ring and a fixed body, and the lifting ring is connected to the raised part; during assembly, the two flat parts are connected to the two bearing seats on both sides of the gear shaft by bolts. The utility model can fix the bearing seats on both sides of the gear box so that the two bearing seats are at a horizontal height and the vertical parallelism does not rotate relative to each other. During hoisting, the crane only needs to call the utility model through the lifting ring, thereby avoiding the tilting of the bearing seat, avoiding damage to the bearing, and ensuring the progress and accuracy of the gear box assembly.

[0016] 2. The threaded rod of the utility model is fixedly connected to the upper surface of the raised part, the middle part of the threaded rod is provided with an external thread, the nut is threadedly connected to the threaded rod, and the lifting ring is fixedly connected to the nut. The lifting ring can move between the two plane parts, and can be aligned even if the weights of the bearing seats on both sides are inconsistent, ensuring that the bearing seats do not tilt during lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the working state of the utility model.

[0018] Figure 2 It is a schematic front view of the structure of the utility model.

[0019] Figure 3 It is a schematic top view of the structure of the utility model.

[0020] In the figure:

[0021] 1-lifting ring 2-fixed body 21-raised part 22-flat part 23-bolt hole 24-locating pin hole 3-gear shaft 4-bearing seat 5-bearing 6-threaded rod 7-nut 8-crane 9-bolt 10-locating pin DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the utility model, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0028] [Example]

[0029] like Figure 1-3 As shown, a gear box tooling includes a lifting ring 1 and a fixing body 2.

[0030] The fixed body 2 is made of carbon structural steel, which has a moderate carbon content and good comprehensive performance, such as plasticity and welding performance.

[0031] The fixing body 2 includes a protruding portion 21 and a planar portion 22 . The protruding portion 21 is a U-shaped plate, and the planar portion 22 is a rectangular flat plate. The planar portions 22 are located on both sides of the protruding portion 21 , and the bottom surfaces of the two planar portions 22 are located on the same plane.

[0032] The length of the fixed body 2 corresponds to the length of the gear shaft 3 of the gear box, and is greater than the length of the gear shaft 3. Two bolt holes 23 corresponding to the threaded holes of the bearing seat 4 and two positioning pin holes 24 are provided on the flat surface portions 22 on both sides.

[0033] The utility model also includes a threaded rod 6, a nut 7 and a lifting ring 1. The threaded rod 6 is a U-shaped rod, which is fixed to the center of the upper surface of the protrusion 21, and an external thread is provided in the middle of the threaded rod 6. The nut 7 is threadedly connected to the threaded rod 6, and the lifting ring 1 is fixed to the nut 7.

[0034] During assembly, the two flat parts 22 of the fixed body 2 are connected to the two bearing seats 4 on both sides of the gear shaft 3 by bolts 9 respectively, and positioned by the positioning pin 10. The distance between the inner surface of the raised part 21 and the end face of the gear is greater than 10 mm. The utility model can fix the bearing seats 4 on both sides of the gear box so that the two bearing seats 4 are at the same horizontal height and the vertical parallelism does not rotate relative to each other. During hoisting, the crane 8 only needs to call the utility model through the lifting ring 1, which increases the reinstallation accuracy during reinstallation, avoids the tilting of the bearing seat 4, avoids damage to the bearing, and ensures the progress and accuracy of the gear box assembly.

[0035] The nut 7 can move on the threaded rod 6, and then the lifting ring 1 can move between the two bearing seats 4. Even if the weights of the bearing seats 4 on both sides are inconsistent, they can be aligned to ensure that the bearing seats 4 do not tilt during lifting.

[0036] The utility model can fix the bearing seats 4 on both sides of the gear shaft 3, avoid damaging the bearings 5, and ensure the progress and accuracy of the gear box assembly.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear box tooling, characterized in that: Including a lifting ring and a fixing body; The fixing body comprises a raised portion and a plane portion, wherein the plane portions are located on both sides of the raised portion, and the bottom surfaces of the two plane portions are located on the same plane; The length of the fixed body corresponds to the length of the gear shaft of the gear box; The plane portion is provided with bolt holes corresponding to the threaded holes of the bearing seat and a positioning pin hole; The lifting ring is connected to the raised portion; The two plane parts are connected with two bearing seats on both sides of the gear shaft through bolts.

2. A gear box tooling according to claim 1, characterized in that: The protrusion is a U-shaped plate.

3. The gear box tooling according to claim 1, characterized in that: The plane portion is a flat plate.

4. The gear box tooling according to claim 1, characterized in that: The lifting ring is movable between two planar portions.

5. A gear box tooling according to claim 4, characterized in that: Also includes threaded rods, nuts and lifting rings; The threaded rod is a U-shaped rod, an external thread is arranged in the middle of the threaded rod, a nut is threadedly connected with the threaded rod, and a lifting ring is fixedly connected to the nut.

6. The gear box tooling according to claim 1, characterized in that: The plane portion is provided with two bolt holes and two positioning pin holes.

7. The gear box tooling according to claim 1, characterized in that: After the two plane parts are connected to the two bearing seats on both sides of the gear shaft by bolts, a gap is left between the inner surface of the raised part and the end surface of the gear.

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