Pocket measuring device for thrust cylindrical roller bearing retainer

Abstract

The utility model relates to the technical field of measuring devices, in particular to a thrust cylindrical roller bearing retainer pocket measuring device, which comprises a go gauge, a no-go gauge and a retainer rotation center measuring structure, the diameters of the go gauge and the no-go gauge conform to the bore diameter tolerance requirement of a bearing retainer pocket, and the go gauge is connected with the no-go gauge through a handheld part. And the retainer rotation center measuring structure is arranged on the go gauge part. According to the measuring device, the go gauge and the no-go gauge which meet the bearing retainer pocket hole diameter tolerance requirement are adopted, whether the pocket hole diameter meets the tolerance standard or not can be rapidly and accurately judged through accurate matching of the go gauge and the no-go gauge, the retainer rotation center measuring structure is arranged on the go gauge part, the pocket hole diameter can be measured, and the bearing retainer rotation center measuring accuracy is improved. Compared with a traditional caliper measurement mode in which multiple times of measurement are needed for averaging and manual operation is easy to influence, the measurement error is greatly reduced, and the measurement precision is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, and in particular to a measuring device for the cage pocket of a thrust cylindrical roller bearing. Background Technology

[0002] In modern machinery manufacturing, thrust cylindrical roller bearings are key components whose performance directly affects the operational stability and reliability of equipment. The cage, as an important part of thrust cylindrical roller bearings, although relatively simple in structure, plays a crucial role in guiding the rollers and reducing friction during bearing operation. In the cage manufacturing process, the measurement step after the pocket machining is a critical step in ensuring product quality; its measurement accuracy and efficiency have a significant impact on the overall bearing performance and production efficiency.

[0003] Currently, the industry commonly uses calipers to measure the width of the upper and lower openings of the cage pockets in thrust cylindrical roller bearings. The core purpose of this traditional method is to ensure the axial symmetry and rotation center of the pocket, thereby ensuring that the rollers roll smoothly and orderly during high-speed operation, avoiding abnormal wear and vibration caused by pocket errors. However, caliper measurement has many limitations. Because it requires multiple measurements and averaging to minimize errors, and it is highly dependent on the operator's measurement technique and experience, even slight operational errors can introduce additional errors, resulting in poor measurement accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a measuring device for the cage pocket of a thrust cylindrical roller bearing, which can solve the above-mentioned technical problems.

[0005] This invention provides a measuring device for the cage pocket of a thrust cylindrical roller bearing, comprising a go gauge, a no-go gauge, and a cage rotation center measuring structure, the diameters of which conform to the tolerance requirements of the bearing cage pocket diameter. The go gauge and no-go gauge are connected by a hand-held part, and the cage rotation center measuring structure is located in the go gauge section. During inspection, the go gauge is used first for inspection, followed by the no-go gauge. If the go gauge can enter and the no-go gauge cannot, then the size of the pocket is qualified.

[0006] Furthermore, the length of the go gauge is equal to the depth of the pocket, and the go gauge is completely submerged in the pocket to determine whether the pocket depth is qualified.

[0007] Furthermore, both the go gauge and the no-go gauge are cylindrical structures.

[0008] Furthermore, the length of the stop gauge is less than the length of the go gauge.

[0009] Further, the retainer rotation center measuring structure is a structure that a cylindrical gauge is milled to form a side flat in the axial direction. When the cylindrical gauge is inserted into the pocket, whether the side flat is flush with the end face of the retainer is used to determine whether the rotation center is qualified. If the side flat is flush with the end face of the retainer, the rotation center of the retainer is qualified.

[0010] Further, the surface roughness of all the measuring surfaces of the measuring device is Ra0.8.

[0011] Further, the cylindrical gauge and the stop gauge are made of GCr15 material.

[0012] Further, the hardness of the GCr15 material is required to be Hrc58-68.

[0013] Further, the end of the cylindrical gauge and the stop gauge is provided with a chamfer.

[0014] Further, the outer surface of the hand-held part is processed by knurling.

[0015] Beneficial effects:

[0016] The measuring device adopts the cylindrical gauge and the stop gauge meeting the bearing retainer pocket aperture tolerance requirement, and through the accurate cooperation of the cylindrical gauge and the stop gauge, whether the pocket aperture meets the tolerance standard can be quickly and accurately determined. Compared with the traditional caliper measurement which needs to be measured multiple times to take an average value and is easily affected by human operation, the measurement error is greatly reduced, the measurement accuracy is effectively improved, and a solid foundation is laid for guaranteeing the overall performance of the bearing. The measuring device reduces the requirement for the skills and experience of the operator through the standardized cylindrical gauge and stop gauge design and the specific rotation center measuring structure, makes the measurement result more objective and consistent, and guarantees the accuracy and reliability of the measurement result. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0019] Figure 2 It is a side view of the cylindrical gauge part in the direction A in the present application.

[0020] Figure 3The utility model discloses a structure schematic diagram of the thrust cylindrical roller bearing retainer to which the measuring device is applied.

[0021] Figure 4 It is the structure schematic diagram before the through gauge is inserted into the pocket hole in the utility model.

[0022] Figure 5 It is the structure schematic diagram after the through gauge is inserted into the pocket hole in the utility model.

[0023] Mark explanation: 1-through gauge, 2-stop gauge, 3-handheld part, 4-side plane, 5-thrust cylindrical roller bearing retainer, 6-pocket hole, 7-end face, 8-pattern. DETAILED DESCRIPTION

[0024] The technical scheme of the utility model will be described below in conjunction with embodiments, and obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0025] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0026] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] Example 1

[0028] A device for measuring the pocket of a thrust cylindrical roller bearing cage, such as Figures 1-5 As shown, the system includes a go gauge 1, a no-go gauge 2, and a cage rotation center measuring structure, all with diameters conforming to the bearing cage pocket diameter tolerance requirements. The go gauge 1 and no-go gauge 2 are connected by a handle 3. The cage rotation center measuring structure is located within the go gauge section. During inspection, the go gauge 1 is used first, followed by the no-go gauge 2. If the go gauge 1 can enter the pocket 6 while the no-go gauge 2 cannot, then the size of the pocket is considered acceptable.

[0029] The length of the go gauge is equal to the depth of the pocket. The go gauge is completely submerged in the pocket to determine whether the pocket depth is up to standard.

[0030] Both the go gauge 1 and the no-go gauge 2 are cylindrical structures, with the length of the no-go gauge 2 being less than that of the go gauge 1.

[0031] The cage rotation center measuring structure is a cylindrical go gauge 1 with a portion milled parallel to the axis to form a side plane 4. When the go gauge 1 is inserted into the pocket 6, the rotation center is judged to be qualified by whether the side plane 4 is flush with the end face 7 of the cage. If the side plane 4 is flush with the end face 7 of the cage, the cage rotation center is qualified.

[0032] All measuring surfaces of the measuring device have a surface roughness of Ra0.8, which effectively reduces the frictional resistance between the measuring surfaces and the inner wall of the pocket. During measurement, the go and no-go gauges can move more smoothly within the pocket, avoiding jamming or scratching of the pocket's inner wall due to surface roughness. Simultaneously, the low surface roughness of the measuring surfaces reduces friction and wear with the object being measured, avoiding measurement errors caused by uneven surfaces and ensuring the authenticity and reliability of the measurement data.

[0033] The go and no-go gauges are made of GCr15 material, a commonly used high-carbon chromium bearing steel with excellent wear resistance, hardness, and toughness. Choosing GCr15 ensures that the go and no-go gauges are not easily worn or deformed during long-term, frequent measurement work, maintaining stable dimensional accuracy. Its good hardness can withstand friction and compression against the inner wall of the pocket during measurement, while its appropriate toughness prevents breakage under accidental impact, thus extending the service life of the measuring device, reducing measurement costs, and ensuring the accuracy and consistency of measurement data.

[0034] The hardness requirement of the GCr15 material is Hrc58-68, and the hardness of the GCr15 material is controlled in the range of Hrc58-68, which is determined by comprehensively considering the service performance and working environment of the measuring device. In this hardness range, the go gauge and the no-go gauge have sufficient hardness to resist wear during the measuring process, ensuring the dimensional stability during long-term use, and can maintain toughness to a certain extent, avoiding the problem of material brittleness and easy breakage due to too high hardness. The appropriate hardness enables the measuring device to meet the high-precision measurement requirements while having good durability and reliability, and can adapt to various complex measurement conditions.

[0035] The end portions of the go gauge and the no-go gauge are provided with chamfers. The design of the end portion chamfer has multiple advantages. On the one hand, the chamfer can play a guiding role when the go gauge and the no-go gauge are inserted into the pocket, enabling the go gauge and the no-go gauge to enter the pocket more smoothly and reducing the resistance and damage to the pocket edge during the insertion process. On the other hand, the chamfer can avoid scratching the operator or damaging the inner wall of the pocket during the measuring process, improving the safety and reliability of the measuring operation.

[0036] The outer surface of the hand-held portion is processed by knurling, which forms fine patterns 8 on the outer surface of the hand-held portion. This surface treatment greatly increases the friction between the hand-held portion and the operator's hand. During the measuring process, the operator can hold the hand-held portion more firmly to avoid the situation that the measuring device falls or the measurement is inaccurate due to hand slipping. At the same time, the knurling treatment also increases the aesthetic and texture of the hand-held portion, making the operator feel more comfortable when using the measuring device for a long time, improving the convenience and work efficiency of the operation.

[0037] Working and using process:

[0038] When measuring the size of the pocket of the thrust cylindrical roller bearing retainer, first check with the go gauge 1, then check with the no-go gauge 2. If the go gauge can enter and the no-go gauge cannot enter, the size of the pocket is qualified.

[0039] When measuring the depth of the pocket of the thrust cylindrical roller bearing retainer, whether the go gauge 1 is completely immersed in the pocket 6 to determine whether the pocket depth is qualified. If it is completely immersed, the depth of the pocket is qualified.

[0040] When measuring the center of rotation of the thrust cylindrical roller bearing retainer, as shown in Figures 4-5 , when the go gauge 1 is inserted into the pocket 6, whether the side plane 4 is flush with the end face 7 of the retainer to determine whether the center of rotation is qualified. If the side plane 4 is flush with the end face 7 of the retainer, the center of rotation of the retainer is qualified.

[0041] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for measuring the pocket of a thrust cylindrical roller bearing cage, characterized in that, It includes a go gauge, a no-go gauge, and a cage rotation center measuring structure whose diameters meet the tolerance requirements of the bearing cage pocket diameter. The go gauge and no-go gauge are connected by a hand-held part, and the cage rotation center measuring structure is located in the go gauge part.

2. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, The length of the gauge is equal to the depth of the pocket.

3. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, Both the go gauge and the no-go gauge are cylindrical structures.

4. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, The length of the stop gauge is less than the length of the go gauge.

5. The thrust cylindrical roller bearing cage pocket measuring device according to claim 3, characterized in that, The cage rotation center measuring structure is a cylindrical go gauge with a portion milled away parallel to the axial direction to form a side plane.

6. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, The surface roughness of all measuring surfaces of the measuring device is Ra0.

8.

7. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, The go gauge and no-go gauge are made of GCr15 material.

8. The thrust cylindrical roller bearing cage pocket measuring device according to claim 7, characterized in that, The hardness requirement for the GCr15 material is Hrc58-68.

9. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, Both the go gauge and the no-go gauge have chamfered ends.

10. The thrust cylindrical roller bearing cage pocket measuring device according to claim 1, characterized in that, The outer surface of the hand grip is knurled.

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