Bearing trial assembly tool

Abstract

The utility model relates to a bearing trial assembly tool which is a combined type inner ring, the combined type inner ring comprises a cover plate part and an inner ring body part, the inner ring of a bearing is of a double-flange structure matched with a tapered roller, and the double flanges comprise a large flange located in the direction of the large head end of the inner ring of the bearing and a small flange located at the small head end of the inner ring of the bearing; the cover plate is a small flange of the whole bearing inner ring; bolt holes are formed from the outer end face to the inner end face of the cover plate, and matched bolt blind holes are formed in the positions, corresponding to the bolt holes of the cover plate, of the inner ring body; the cover plate is connected with the inner ring body through a bolt; the tool is used for operation, operation is easy and convenient, safety is high, product damage is small, ferrule collision is prevented, precision is improved, and meanwhile the tool has the advantages that product quality is improved, damage to secondary components is reduced and the like.

Description

Technical Field

[0001] The utility model relates to a test assembly tool for bearing products, specifically to a bearing test assembly tool and a detection and adjustment method thereof, which is mainly used for the test assembly of the first set of super-large wind power main bearing products, and tests and verifies the assembly clearance, assembly height, cage assembly and processing process, and belongs to the technical field of bearing manufacturing and assembly. Background Art

[0002] Wind turbine main bearing is a kind of rolling bearing and one of the components widely used in modern wind power generation. It relies on the rolling contact of the main components to support the rotating parts. Most of the wind turbine main bearings are now standardized. Wind turbine main bearings have the advantages of high precision, slow rotation, large load, long life and easy selection.

[0003] At present, the main bearings of super-large wind turbines are composed of outer rings, inner rings, rolling elements and cages. Due to the high precision and high price of large wind turbine main bearings, the secondary components (cages, rings, rolling elements) are expensive, which easily causes the cages, rings and rolling elements to wear and damage, and the processing is difficult. In addition, it is inconvenient to transport back and forth, the rings grooves collide, the plane is correspondingly stuck, the rolling elements are stuck, the cages are squeezed and deformed, and the rolling elements and cage rings are damaged, which will also increase the safety factor for personal safety. Summary of the invention

[0004] In view of the above technical problems, the utility model designs a combined structure tooling by optimizing the existing inner ring, through which the first trial installation of the super-large wind power main bearing can be realized, and the bearing trial installation can be tested and adjusted.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a bearing test assembly tool, which is a combined inner ring, the combined inner ring includes a cover plate part and an inner ring body part, the inner ring of the bearing is a double rib structure matched with a tapered roller, the double rib includes a large rib located in the direction of the large head end of the inner ring of the bearing and a small rib located at the small head end of the inner ring of the bearing; the cover plate is the small rib of the entire inner ring of the bearing; bolt holes are opened from the outer end surface to the inner end surface of the cover plate, and matching bolt blind holes are provided on the inner ring body at positions corresponding to the bolt holes of the cover plate; the cover plate and the inner ring body are connected together by bolts;

[0006] Furthermore, the cover plate is an independent body, which is combined with the inner ring body to form a combined inner ring, constituting a tooling;

[0007] The tooling of this scheme is suitable for special bearings with double ribs on the inner ring. The trial set includes the determination of the ring raceway size, clearance, ring rib size, rolling elements and cages, etc.

[0008] Furthermore, since the cover plate is located at the small head end of the integral inner ring, the cover plate is a small rib; therefore, the radial surface at the intersection of the inner side surface of the small rib and the end point of the raceway of the inner ring body is the interface between the cover plate part and the inner ring body part;

[0009] Furthermore, the cover plate and the inner ring body are connected at a position close to the inner diameter direction of the inner ring through the concave and convex stoppers between them, which facilitates installation and ensures assembly accuracy;

[0010] Specifically, a protrusion extending out of the interface is formed on the inner ring body, and a recess matching the protrusion of the inner ring body is formed on the cover plate. As another embodiment of the utility model, a protrusion extending out of the interface can be formed on the cover plate, and a recess matching the protrusion can be formed on the inner ring body.

[0011] Furthermore, the upper surface of the cover plate includes a slope section and a horizontal section, an R chamfer is formed between the horizontal section and the inner side surface of the cover plate, the curvature of the R chamfer is 1.2, and an angle of 18.9° is formed between the inner side surface of the cover plate and the R chamfer;

[0012] Furthermore, the angle between the slope section on the upper surface of the cover plate and the extension line of the horizontal section is set at 15°.

[0013] The bearing applicable to the above-mentioned test assembly tool is a tapered roller bearing, which includes an outer ring, an inner ring, a retaining frame and a plurality of rolling elements; the outer ring is designed with a linear raceway, and the inner ring has double-sided ribs, and an oil groove is formed between the raceway between the double ribs and the ribs on each side.

[0014] When the above-mentioned test assembly tool is used to test the first test set of the bearing, the inner ring body raceway is processed and the rolling element is placed in the cage; the inner ring body is installed, and then the cover plate is installed; when the cover plate is large in size, it cannot be assembled. At this time, it means that the bearing test result is unqualified and needs to be readjusted;

[0015] The technical concept of this solution also lies in the adjustment method of the test assembly tooling:

[0016] If the above test fails, the bearing test assembly is adjusted by changing the cover plate size; when the cover plate size is large and the cage and rolling element are stuck on the inner ring body, the cover plate is removed by removing the screws on the cover plate, and then the cage and rolling element are safely taken out; then the cover plate screws are locked and the cover plate size is processed; if it fails, repeat the above steps, and repeatedly test the size of the first bearing piece by repeatedly processing the cover plate size, and finally meet the design requirements; subsequently, batch production is carried out according to the size required by the design;

[0017] During the process of processing the cover plate size, if improper operation occurs and the cover plate is too small, a new cover plate can be replaced and then debugged and processed until the final size requirements are met.

[0018] By adopting the detection and adjustment method of the above-mentioned test fixture, it is possible to continue the adjustment operation after detecting that the bearing is unqualified, without the need to adopt the traditional method of disassembling all parts of the entire bearing and damaging the secondary parts; this design saves costs, is simple to install and transport, has high safety, reduces product damage, prevents ring collisions, improves accuracy, and at the same time improves product quality and reduces the chance of damage to secondary parts.

[0019] The beneficial effects of the utility model test assembly tooling and detection and adjustment method are: providing a first test set of an extra-large wind turbine main bearing, using this tooling for operation, which is simple and convenient to operate, highly safe, less susceptible to product damage, preventing ring collisions, and improving accuracy. It also has the advantages of improving product quality and reducing damage to secondary components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the structural diagram of the trial assembly tooling of the utility model.

[0021] Figure 2 for Figure 1 Structural diagram of the inner ring body of the test assembly tooling.

[0022] Figure 3 for Figure 1 Structural diagram of the cover part of the trial assembly tooling.

[0023] Figure 4 This is a bearing structure diagram suitable for the test assembly tooling of the utility model.

[0024] Figure 5 for Figure 4 The outer ring structure diagram of the bearing.

[0025] In the figure, the tooling: 1, cover plate, 2, inner ring body, 3, bolt hole, 4, bolt blind hole, 5, bolt, 6, inner side of small rib, 7, interface, 8, stopper, 9, protrusion, 10, notch, 1.1, slope section, 1.2, horizontal section;

[0026] Bearing: 11, outer ring, 12, inner ring, 13, cage, 14, rolling element. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0028] like Figure 1-3 A bearing test assembly tool shown is a combined inner ring, which includes a cover plate 1 part and an inner ring body 2 part. The inner ring 12 of the bearing is a double rib structure matched with a tapered roller, and the double rib includes a large rib located at the large end direction of the inner ring of the bearing and a small rib located at the small end of the inner ring of the bearing; the cover plate 1 is the small rib of the entire inner ring 12 of the bearing; bolt holes 3 are provided from the outer end surface to the inner end surface of the cover plate 1, and matching bolt blind holes 4 are provided on the inner ring body 2 at positions corresponding to the bolt holes 3 of the cover plate 1; the cover plate 1 and the inner ring body 2 are connected together by bolts 5;

[0029] Since the cover plate 1 is located at the small end of the integral inner ring, the cover plate 1 is a small rib; therefore, the radial surface at the intersection of the inner side surface 6 of the small rib and the end point of the raceway of the inner ring body 2 is the interface 7 between the cover plate 1 and the inner ring body 2;

[0030] The cover plate 1 and the inner ring body 2 are connected at a position close to the inner diameter direction of the inner ring through the concave and convex stoppers 8 between them;

[0031] In this embodiment, a protrusion 9 extending out of the interface 7 is formed on the inner ring body 2, and a recess 10 matching with the protrusion 9 of the inner ring body 2 is formed on the cover plate 1. As another embodiment of the utility model, a protrusion extending out of the interface 7 may be formed on the cover plate 1, and a recess matching with the protrusion 9 of the inner ring body 2 may be formed on the inner ring body 2.

[0032] The upper surface of the cover plate 1 comprises a slope section 1.1 and a horizontal section 1.2, an R chamfer is formed between the horizontal section 1.2 and the inner side surface 6 of the cover plate 1, the R chamfer has an arc of 1.2, and an angle of 18.9° is formed between the inner side surface 6 of the cover plate and the R chamfer;

[0033] The angle between the slope section 1.1 and the extension line of the horizontal section 1.2 on the upper surface of the cover plate 1 is set at 15°.

[0034] like Figure 4-5 As shown, the bearing suitable for the above-mentioned test assembly tool is a tapered roller bearing, which includes an outer ring 11, an inner ring 12, a retainer 13 and a plurality of rollers 14; the outer ring 1 is designed as a linear raceway, and the inner ring 12 has double-sided ribs, and an oil groove is formed between the raceway between the double ribs and the ribs on each side.

[0035] When the above-mentioned test assembly tool is used to test the first test set of the bearing, the raceway of the inner ring body 2 is processed, and the rolling element 14 is placed in the cage 13; the inner ring body 2 is installed, and then the cover plate 1 is partially installed; when the cover plate 1 is too large, it cannot be assembled. At this time, it means that the bearing test result is unqualified and needs to be readjusted;

[0036] The technical concept of this solution also lies in the adjustment method of the test assembly tooling:

[0037] When the above test fails, the bearing test assembly is adjusted by changing the size of the cover plate 1; when the size of the cover plate 1 is large and the retainer 13 and the rolling element 14 are stuck on the inner ring body 2, the cover plate 1 is removed by dismantling the bolts 5 on the cover plate 1, and then the retainer 13 and the rolling element 14 are safely taken out; then the cover plate bolts 5 are locked, and then the cover plate size is processed; when the cover plate size is large, the inner side of the cover plate needs to be cut and processed to reduce the size; the size of the first piece of the bearing is repeatedly tested by repeatedly processing the size of the cover plate 1, and finally the design requirements are met; and then batch production is carried out according to the size required by the design;

[0038] During the process of processing the size of the cover plate 1, if improper operation occurs and the processed size of the cover plate 1 is too small, a new cover plate can be replaced and then debugged and processed until the final size requirement is met.

[0039] The key of the utility model is to allow the retaining frame 13 to hold the rolling element 14 (without scratching the raceway and the rolling element in advance), which cannot guarantee success at one time and requires multiple processing of the size of the cover plate 1; after detecting that the bearing is unqualified, the adjustment operation can be continued without the need to adopt the traditional method of disassembling all the components of the entire bearing and damaging the secondary components; this design saves costs, is simple to install and transport, has high safety, has low product damage, prevents the ring from being knocked, improves accuracy, and at the same time improves product quality and reduces the chance of damage to the secondary components.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "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.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A bearing test assembly tool, characterized in that: The tooling is a combined inner ring, which includes a cover plate part and an inner ring body part. The inner ring of the bearing is a double rib structure that matches the tapered roller, and the double rib includes a large rib located at the large end direction of the inner ring of the bearing and a small rib located at the small end of the inner ring of the bearing; the cover plate is the small rib of the entire inner ring of the bearing; bolt holes are provided from the outer end surface to the inner end surface of the cover plate, and matching bolt blind holes are provided on the inner ring body at positions corresponding to the bolt holes of the cover plate; the cover plate and the inner ring body are connected together by bolts.

2. A bearing test assembly tool according to claim 1, characterized in that: The cover plate is an independent body, which is combined with the inner ring body to form a combined inner ring, constituting a tooling.

3. The bearing test assembly tool according to claim 1, characterized in that: The radial surface at the intersection of the inner side surface of the small rib and the end point of the raceway of the inner ring body is the interface between the cover plate part and the inner ring body part.

4. The bearing test assembly tool according to claim 1, characterized in that: The upper surface of the cover plate includes a slope section and a horizontal section, an R chamfer transition is formed between the horizontal section and the inner side surface of the cover plate, the curvature of the R chamfer is 1.2, and an angle of 18.9° is formed between the inner side surface of the cover plate and the R chamfer.

5. The bearing test assembly tool according to claim 4, characterized in that: The angle between the slope section on the upper surface of the cover plate and the extension line of the horizontal section is set at 15°.

6. The bearing test assembly tool according to claim 1, characterized in that: The bearing suitable for the test assembly tool is a tapered roller bearing, which includes an outer ring, an inner ring, a cage and a plurality of rolling elements; the outer ring is designed with a linear raceway, and the inner ring has double-sided ribs, and an oil groove is formed between the raceway between the double ribs and the ribs on each side.

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