Thrust shaft washer inner diameter measuring device

Abstract

The utility model discloses a device for measuring the inner diameter of a thrust shaft washer. The device comprises a handle part; the no-go gauge part is arranged at one end of the handle part, the outer diameter of the no-go gauge part is matched with the upper limit value of the inner diameter of the resisting part, the outer wall of the no-go gauge part is provided with a first avoiding groove corresponding to the mistake-proofing claw and a second avoiding groove corresponding to the positioning claw, and the first avoiding groove and the second avoiding groove extend in the height direction of the no-go gauge part; the go gauge part is arranged at the end, away from the handle part, of the no-go gauge part, the outer diameter of the go gauge part is matched with the lower limit value of the inner diameter of the blocking part, the outer wall of the go gauge part is provided with a third avoiding groove corresponding to the mistake-proofing claw and a fourth avoiding groove matched with the positioning claw, and the third avoiding groove extends in the height direction of the go gauge part and communicates with the first avoiding groove. The fourth avoiding groove extends in the height direction of the go gauge part and is communicated with the second avoiding groove. The thrust shaft washer inner diameter measuring device provided by the utility model is convenient to operate and improves the detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a device for measuring the inner diameter of a thrust shaft ring. Background Art

[0002] Thrust needle roller bearings are mainly composed of seat rings, shaft rings, needle rollers and cages. Figure 1 As shown, the shaft ring includes an annular raceway 100, and a stopper 200 arranged on the inner side of the annular raceway 100 and matched with the retainer. The stopper 200 is vertically arranged on the annular raceway 100, and the axial end of the stopper 200 is provided with a plurality of anti-mistake claws 201 extending radially inward, and the inner wall of the stopper 200 is provided with a plurality of positioning claws 202. The shaft ring is usually installed in the corresponding shaft as a matching part, so there are high requirements for the inner diameter of the shaft ring. Since the shaft ring is usually a thin-walled part (thickness ≤ 1mm), it is greatly deformed during the heat treatment process, and the matching size usually needs to be 100% inspected after the heat treatment.

[0003] In the prior art, a no-go gauge or a bearing gauge is generally used to detect the inner diameter of the shaft ring. The bearing gauge needs to rotate one circle during detection, which is less efficient than the no-go gauge and is generally used on products with high requirements. The no-go gauge is dumbbell-shaped, with the no-go gauge and the go gauge respectively set at both ends. This structure of the no-go gauge can only be used on one side, which is less efficient, and is heavy and difficult to hold.

[0004] In order to solve the above problems, the present utility model is provided. Utility Model Content

[0005] The utility model aims to provide a thrust shaft ring inner diameter measuring device with simple structure and high measuring efficiency.

[0006] Based on the above problems, the technical solution provided by the utility model is:

[0007] A thrust shaft ring inner diameter measuring device, the shaft ring comprises an annular raceway and a stopper portion arranged on the inner side of the annular raceway in the circumferential direction, the axial end of the stopper portion is provided with a plurality of anti-misalignment claws extending radially inward, the inner wall of the stopper portion is provided with a plurality of positioning claws, and the measuring device comprises:

[0008] handle part;

[0009] A stop gauge portion is arranged at one end of the handle portion, the outer diameter of the stop gauge portion matches the upper limit value of the inner diameter of the blocking portion, and the outer wall of the stop gauge portion is provided with a first avoidance groove corresponding to the anti-error claw and a second avoidance groove corresponding to the positioning claw, and the first avoidance groove and the second avoidance groove extend along the height direction of the stop gauge portion;

[0010] A through gauge portion is arranged at the end of the stop gauge portion away from the handle portion, the outer diameter of the through gauge portion matches the lower limit value of the inner diameter of the resisting portion, and the outer wall of the through gauge portion is provided with a third avoidance groove corresponding to the anti-error claw and a fourth avoidance groove matching the positioning claw, the third avoidance groove extends along the height direction of the through gauge portion and is interconnected with the first avoidance groove, and the fourth avoidance groove extends along the height direction of the through gauge portion and is interconnected with the second avoidance groove.

[0011] In some embodiments, the height of the stop gauge portion is 6 to 10 mm, and the height of the through gauge portion is 6 to 10 mm.

[0012] In some embodiments, the first avoidance groove and the third avoidance groove have a width of 6 to 8 mm and a depth of 3 to 4 mm.

[0013] In some embodiments, the second avoidance groove and the fourth avoidance groove have a width of 3 to 4 mm and a depth of 3 to 4 mm.

[0014] In some embodiments, a weight-reducing portion is further included, and the weight-reducing portion is a through groove extending from the through-gauge portion to the handle portion.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] (1) The stop gauge and the through gauge are arranged at the same end of the handle, and the inner diameter of the shaft ring is tested at one time, thereby improving the test efficiency;

[0017] (2) A through groove is provided from the through-gauge portion to the handle portion, which can reduce weight and make operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the axle ring in the prior art;

[0020] Figure 2 This is a schematic diagram of the structure of an embodiment of a thrust shaft ring inner diameter measuring device of the utility model;

[0021] Figure 3 This is the second structural diagram of the embodiment of the utility model;

[0022] Figure 4 for Figure 3Schematic diagram of the AA section structure;

[0023] Figure 5 This is one of the schematic diagrams of the measurement state structure of an embodiment of the utility model;

[0024] Figure 6 This is the second schematic diagram of the measurement state structure of the embodiment of the utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of the structure of the middle BB section;

[0026] in:

[0027] 100, annular raceway; 200, resisting portion; 201, anti-mistake claw; 202, positioning claw;

[0028] 1. Handle part;

[0029] 2. Stop gauge portion; 2-1. First avoidance groove; 2-2. Second avoidance groove;

[0030] 3. General regulation part; 3-1. Third avoidance groove; 3-2. Fourth avoidance groove;

[0031] 4. Weight loss department. DETAILED DESCRIPTION

[0032] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0033] like Figures 2 to 7 As shown, an embodiment of the utility model is provided, which provides a thrust shaft ring inner diameter measuring device for detecting the inner diameter of the shaft ring. The shaft ring includes an annular raceway 100 and a resisting portion 200 arranged on the circumferential inner side of the annular raceway 100 and cooperating with a retaining frame. Six anti-mistake claws 201 extending radially inward are provided at the axial end of the resisting portion 200, and three positioning claws 202 are provided on the inner wall of the resisting portion 200.

[0034] Accordingly, the measuring device includes a handle portion 1, and a stop gauge portion 2 and a through gauge portion 3 arranged at one axial end of the handle portion 1. The stop gauge portion 2, the through gauge portion 3 and the handle portion 1 are an integrally formed structure, and the shapes and sizes of each part are obtained by machining. Among them, the handle portion 1 is a cylindrical structure, and anti-slip patterns can also be arranged on the outer wall of the handle portion 1.

[0035] The stop gauge portion 2 is arranged at one end of the handle portion 1, and the outer diameter of the stop gauge portion 2 matches the upper limit of the inner diameter of the blocking portion 200. A first avoidance groove 2-1 corresponding to the anti-error claw 201 and a second avoidance groove 2-2 corresponding to the positioning claw 202 are arranged on the outer wall of the stop gauge portion 2, and the first avoidance groove 2-1 and the second avoidance groove 2-2 both extend along the height direction of the stop gauge portion 2. Preferably, the height of the stop gauge portion 2 is 6 to 10 mm, the width of the first avoidance groove 2-1 and the third avoidance groove 2-2 is 6 to 8 mm, and the depth is 3 to 4 mm.

[0036] The through-gauge part 3 is arranged at the end of the stop-gauge part 2 away from the handle part 1, and the outer diameter of the through-gauge part 3 matches the lower limit of the inner diameter of the blocking part 200. The third avoidance groove 3-1 corresponding to the anti-error claw 201 and the fourth avoidance groove 3-2 matching the positioning claw 202 are arranged on the outer diameter of the through-gauge part 3. The third avoidance groove 3-1 extends along the height direction of the through-gauge part 3 and is interconnected with the first avoidance groove 2-1. The fourth avoidance groove 3-2 extends along the height direction of the through-gauge part 3 and is interconnected with the second avoidance groove 2-2. Preferably, the height of the through-gauge part 3 is 6 to 10 mm, the width of the second avoidance groove 2-2 and the fourth avoidance groove 3-2 is 3 to 4 mm, and the depth is 3 to 4 mm.

[0037] In order to further optimize the implementation effect of the utility model, a weight reduction portion 4 is further provided. The weight reduction portion 4 is a through groove extending from the through gauge portion 3 to the handle portion 1. The provision of the through groove can reduce the weight of the measuring device, facilitate measurement operations, and improve measurement efficiency.

[0038] During the inspection, the shaft ring is placed on the through gauge part. If the shaft ring can pass through the through gauge part but cannot pass through the no-stop gauge part, the product is judged to be qualified. If the shaft ring cannot pass through the through gauge part or can pass through the no-stop gauge part, the product is judged to be unqualified.

[0039] In summary, the measuring device arranges the stop gauge part and the through gauge part at one axial end of the handle part, which can complete the detection of the inner diameter of the shaft ring in a special manner and improve the detection efficiency.

[0040] The above examples are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A thrust shaft ring inner diameter measuring device, the shaft ring comprising an annular raceway and a stopper portion arranged on the inner side of the annular raceway in the circumferential direction, the axial end of the stopper portion is provided with a plurality of anti-misalignment claws extending radially inward, the inner wall of the stopper portion is provided with a plurality of positioning claws, characterized in that: The measuring device comprises: handle part; A stop gauge portion is arranged at one end of the handle portion, the outer diameter of the stop gauge portion matches the upper limit value of the inner diameter of the blocking portion, and the outer wall of the stop gauge portion is provided with a first avoidance groove corresponding to the anti-error claw and a second avoidance groove corresponding to the positioning claw, and the first avoidance groove and the second avoidance groove extend along the height direction of the stop gauge portion; A through gauge portion is arranged at the end of the stop gauge portion away from the handle portion, the outer diameter of the through gauge portion matches the lower limit value of the inner diameter of the resisting portion, and the outer wall of the through gauge portion is provided with a third avoidance groove corresponding to the anti-error claw and a fourth avoidance groove matching the positioning claw, the third avoidance groove extends along the height direction of the through gauge portion and is interconnected with the first avoidance groove, and the fourth avoidance groove extends along the height direction of the through gauge portion and is interconnected with the second avoidance groove.

2. The thrust shaft washer inner diameter measuring device according to claim 1, characterized in that: The height of the stop gauge portion is 6 to 10 mm, and the height of the through gauge portion is 6 to 10 mm.

3. The thrust shaft washer inner diameter measuring device according to claim 2, characterized in that: The width of the first avoidance groove and the third avoidance groove is 6-8 mm, and the depth is 3-4 mm.

4. The thrust shaft washer inner diameter measuring device according to claim 3, characterized in that: The width of the second avoidance groove and the fourth avoidance groove is 3-4 mm, and the depth is 3-4 mm.

5. The thrust shaft washer inner diameter measuring device according to claim 1, characterized in that: It also includes a weight-reducing portion, which is a through slot extending from the through-gauge portion to the handle portion.

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