Large-scale thrust self-aligning roller bearing raceway measuring tube ruler

Abstract

The utility model relates to the technical field of bearing measuring tools, in particular to a large-scale thrust self-aligning roller bearing raceway measuring tube ruler. The end face positioning pipe ruler head is detachably fixed to the pipe ruler body and provided with an end face fulcrum used for abutting against the end face of the ferrule. The raceway positioning pipe ruler head comprises a positioning fulcrum assembly hinged to the positioning moving rod, and the positioning fulcrum assembly comprises a positioning raceway supporting rod capable of rotating relative to the positioning moving rod so that the positioning raceway supporting rod can perpendicularly abut against the ferrule raceway. The raceway measuring tube ruler head comprises a measuring fulcrum assembly hinged to the measuring moving rod, and the measuring fulcrum assembly comprises a measuring meter fixing piece capable of rotating relative to the measuring moving rod so as to fix a measuring meter and enable the measuring end to make vertical contact with the ferrule raceway. According to the utility model, the rotation angles of the positioning raceway support rod and the measuring meter can be adjusted, the contact angle with the raceway is 90 degrees during measurement, the detection precision is improved, the product quality is improved, the retainer fitting process can be canceled, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing measuring tools, in particular to a large-scale thrust spherical roller bearing raceway measuring tube ruler. Background Art

[0002] Large thrust spherical roller bearings are processed by trial sets, that is, after the inner ring and roller are processed, the inner ring and roller are sent to the retainer company, and the retainer is processed according to the size of the inner ring and roller to determine the size of the retainer. After the inner ring, outer ring, roller and retainer are processed, they are assembled. During the assembly process, the assembly height and rotation flexibility of the product are tested after the matching sets are installed. The assembly height is frequently unqualified during the current processing. If the test result is greater than the upper tolerance limit required by the drawing, the end face can be ground. If the test result is less than the lower tolerance limit required by the drawing, the product is scrapped and the production efficiency is low.

[0003] An analysis of the current processing technology and detection methods for the inner ring, outer ring, roller, and cage shows that the root cause is that the detection method for the outer ring and inner ring raceway has large errors, resulting in inaccurate product size detection results for each processing. In the prior art, the raceway size is measured using a depth gauge. During measurement, the two ends of the depth gauge are in contact with the end face and diameter of the ferrule. The depth gauge is moved to the chamfer intersection of the raceway and the end face for measurement. Since the position of the depth gauge is determined by eye, it is impossible to confirm whether it has moved to the correct position, and the detection error is large. The hard-turned rib is processed after the final grinding of the raceway is completed. The size of the inner ring rib is detected by clamping the ball. During the detection, the steel ball contacts the raceway. Since the raceway size detection is inaccurate, the rib size detection is also inaccurate. If the cage is not tried on, the product will fail to rotate after the assembly. Utility Model Content

[0004] In view of the defects of the prior art, the utility model provides a large-scale thrust spherical roller bearing raceway measuring tube ruler, which can adjust the rotation angle of the positioning raceway support rod and the measuring table to ensure that the positioning raceway support rod and the measuring table are in contact with the raceway at 90° during the measurement process, thereby improving the measurement accuracy and product quality.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a large-scale thrust spherical roller bearing raceway measuring ruler, which includes a ruler body, an end face positioning ruler head, a raceway positioning ruler head and a raceway measuring ruler head; the end face positioning ruler head is detachably fixed to the ruler body, and the end face positioning ruler head has an end face fulcrum for abutting against the end face of the ring; the raceway positioning ruler head includes a positioning ruler claw sleeve fixed to the ruler body, a positioning moving rod connected to the positioning ruler claw sleeve, and a A positioning fulcrum assembly, the positioning fulcrum assembly includes a positioning raceway support rod that can rotate relative to the positioning movable rod so that the positioning raceway support rod can vertically abut against the raceway of the ferrule; a raceway measuring ruler head includes a measuring ruler claw sleeve fixed to the ruler body, a measuring movable rod connected to the measuring ruler claw sleeve, and a measuring fulcrum assembly hinged to the measuring movable rod, the measuring fulcrum assembly includes a measuring table fixing part that can rotate relative to the measuring movable rod so as to fix the measuring table and make the measuring end vertically contact the raceway of the ferrule.

[0006] Furthermore, the positioning pipe ruler claw sleeve is detachably sleeved on the pipe ruler body.

[0007] Furthermore, the measuring ruler claw sleeve is detachably sleeved on the ruler body.

[0008] Furthermore, the positioning moving rod is slidably connected to the positioning tube ruler claw sleeve, so that the positioning moving rod can move relative to the positioning tube ruler claw sleeve along the length direction of the positioning moving rod.

[0009] Furthermore, the measuring moving rod is slidably connected to the measuring tube ruler claw sleeve, so that the measuring moving rod can move relative to the measuring tube ruler claw sleeve along the length direction of the measuring moving rod.

[0010] Furthermore, the measuring gauge includes a dial gauge and / or a micrometer.

[0011] Furthermore, the positioning fulcrum assembly includes a support rod fixing piece connected to the positioning movable rod pin shaft, and a positioning roller support rod detachably connected to the support rod fixing piece.

[0012] Furthermore, the end surface positioning pipe ruler head comprises an end surface positioning claw sleeve slidably mounted on the pipe ruler body, and an end surface support member connected to the end surface positioning claw sleeve, and the end surface support member is provided with the end surface fulcrum.

[0013] Furthermore, two end surface positioning pipe ruler heads are provided.

[0014] Preferably, the cross section of the ruler body is hexagonal.

[0015] The beneficial effects of the utility model are as follows: the above-mentioned large-scale thrust spherical roller bearing raceway measuring ruler is provided with an end face positioning ruler head, a raceway positioning ruler head and a raceway measuring ruler head. The end face fulcrum, the positioning fulcrum and the dial indicator are fixed separately. The end face fulcrum is performed by the end face positioning ruler head, the raceway positioning ruler head is performed by the raceway positioning ruler head, and the raceway measuring ruler head is used to fix the dial indicator and measure the raceway. When adjusting the ruler, the raceway positioning ruler head and the raceway measuring ruler head are installed separately, and the movement is more flexible. The positioning fulcrum assembly is hinged to the positioning moving rod, and the measuring fulcrum assembly is hinged to the measuring moving rod. The rotation angle of the positioning raceway support rod and the measuring gauge can be adjusted to ensure that the contact with the raceway is 90º during the measurement process, thereby improving the detection accuracy, and the retainer trial set process can be cancelled. The production process can be carried out simultaneously to avoid wasting production time due to waiting for the trial set, which affects the production efficiency. At the same time, it is avoided that the assembly is unqualified after the matching sleeve is installed. It can improve production efficiency and quality.

[0016] When the depth gauge used in the prior art measures the raceway size, the measured raceway is the size at the top. Due to the large tolerance of the raceway curvature, the measured position is not the contact point position, and the measured position is incorrect. Since the moving position of the depth gauge is determined by the eye, it is impossible to confirm whether it has moved to the correct position, and the detection error is large. The above-mentioned large thrust spherical roller bearing raceway measuring gauge can be moved more flexibly. During measurement, the positioning raceway support rod and the measuring table can be adjusted to the raceway value at the contact point required by the drawing, and the measurement is more accurate. In the prior art, depth gauge detection is used, and the eyes are used to determine whether the side with the scale of the moving depth gauge has moved into place. This process takes a long time, and the raceway ellipse needs to be measured on the machine tool with a magnetic table stand. The use of the above-mentioned large thrust spherical roller bearing raceway measuring gauge can measure the size and ellipse at the same time, and the measurement process is short and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a large-scale thrust spherical roller bearing raceway measuring ruler measuring the outer ring raceway of the bearing in one embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of a large-scale thrust spherical roller bearing raceway measuring tube ruler measuring the inner ring raceway of the bearing in one embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a raceway positioning ruler head of a large-scale thrust spherical roller bearing raceway measuring ruler in one embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a raceway measuring ruler head of a large thrust spherical roller bearing raceway measuring ruler in one embodiment of the utility model;

[0021] Figure 5A schematic diagram of a depth gauge used in the prior art to measure the outer ring raceway of a bearing;

[0022] Figure 6 It is a schematic diagram of a depth gauge measuring the inner ring raceway of a bearing in the prior art;

[0023] Figure 7 It is a schematic diagram of measuring the outer ring of a large-scale thrust spherical roller bearing raceway measuring tube ruler in one embodiment of the utility model;

[0024] In the figure:

[0025] 100. Pipe ruler body,

[0026] 200, end surface positioning pipe ruler head, 210, end surface positioning claw sleeve, 220, end surface support, 221, end surface fulcrum,

[0027] 300, rolling track positioning tube ruler head, 310, positioning tube ruler claw sleeve, 320, positioning moving rod, 330, positioning fulcrum assembly, 331, positioning rolling track support rod, 332, support rod fixing part,

[0028] 400, rolling track measuring tube ruler head, 410, measuring tube ruler claw sleeve, 420, measuring moving rod, 430, measuring fulcrum assembly, 431, measuring table fixing part, 432, measuring table,

[0029] a. Ferrule end face, b. Ferrule raceway. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1, shows a large-scale thrust spherical roller bearing raceway measuring ruler, which is used for the raceway measurement of large-scale thrust spherical roller bearings, and includes a ruler body 100, an end face positioning ruler head 200, a raceway positioning ruler head 300 and a raceway measuring ruler head 400. During measurement, the end face positioning ruler head 200, the raceway positioning ruler head 300 and the raceway measuring ruler head 400 are all installed on the ruler body 100. The end face positioning ruler head 200 is detachably fixed to the ruler body 100, and the end face positioning ruler head 200 has an end face fulcrum 221 for abutting against the end face a of the ring; the raceway positioning ruler head 300 includes a positioning ruler claw sleeve 310 fixed to the ruler body 100, a positioning moving rod 320 connected to the positioning ruler claw sleeve 310, and a positioning fulcrum assembly 330 hinged to the positioning moving rod 320, and the positioning fulcrum assembly 330 includes a positioning raceway fulcrum assembly 330 that can rotate relative to the positioning moving rod 320. Rod 331, so that the positioning raceway support rod 331 is vertically abutted against the ring raceway b; the raceway measuring ruler head 400 includes a measuring ruler claw sleeve 410 fixed to the ruler body 100, a measuring moving rod 420 connected to the measuring ruler claw sleeve 410, and a measuring fulcrum assembly 430 hinged to the measuring moving rod 420, the measuring fulcrum assembly 430 includes a measuring table fixing part 431 that can rotate relative to the measuring moving rod 420 to fix the measuring table 432 and make the measuring end contact the ring raceway b vertically.

[0032] The above-mentioned large-scale thrust spherical roller bearing raceway measuring ruler is provided with an end face positioning ruler head 200, a raceway positioning ruler head 300 and a raceway measuring ruler head 400, and the end face fulcrum, the positioning fulcrum and the dial indicator are fixed separately. The end face fulcrum is performed by the end face positioning ruler head 200, the raceway positioning ruler head 300 is performed by the positioning fulcrum, and the raceway measuring ruler head 400 is used to fix the dial indicator. When adjusting the ruler, the raceway positioning ruler head 300 and the raceway measuring ruler head 400 are respectively installed, and the movement is more flexible. The positioning fulcrum assembly 330 is hinged to the positioning moving rod 320, and the measuring fulcrum assembly 430 is hinged to the measuring moving rod 420. The rotation angle of the positioning raceway support rod 331 and the measuring gauge 432 can be adjusted to ensure that the contact with the raceway is 90° during the measurement process, improve the detection accuracy, cancel the retainer trial set process, and can be produced simultaneously during the production process, avoiding the waste of production time due to waiting for the trial set, which affects the production efficiency. At the same time, it can avoid the phenomenon of high assembly failure after the matching sleeve is installed. It can improve production efficiency and quality.

[0033] See also Figure 5 and Figure 6When the depth gauge used in the prior art measures the raceway size, the measured raceway is the size at the top. Due to the large tolerance of the raceway curvature, the measured position is not the contact point position, and the measured position is incorrect. The above-mentioned large thrust spherical roller bearing raceway measuring gauge can be moved more flexibly. During measurement, the positioning raceway support rod 331 and the measuring table 432 can be adjusted to the raceway value at the contact point required by the drawing, and the measurement is more accurate. In the prior art, depth gauge detection is used to determine by eye whether the side with the scale of the moving depth gauge has moved into place. This process takes a long time, and the raceway ellipse needs to be measured on the machine tool with a magnetic table stand. The use of the above-mentioned large thrust spherical roller bearing raceway measuring gauge can measure the size and ellipse at the same time, and the measurement process is short and efficient.

[0034] During the production process, the first bearing is inspected using a three-coordinate measuring device as a reference, which is used to calibrate the ruler to ensure the accuracy of the reference and measuring tools and to achieve accurate measurement results. Specifically, during the production process, the first ferrule is processed and sent to the three-coordinate measuring machine for inspection. After passing the inspection, the ferrule is used as a reference, and the raceway dimensions after inspection by the three-coordinate measuring machine are marked on the ferrule. Taking the outer ring as an example, first place the raceway positioning ruler head 300 and the raceway measuring ruler head 400 into the ruler body 100, and then place the end face positioning ruler head 200 into the ruler body 100. Adjust the positioning moving rod 320 and the measuring moving rod 420, and adjust the height to the measurement height of the contact point position required by the drawing. Figure 7 As shown, the height from the upper end face is h. The positioning raceway support rod 331 and the measuring gauge 432 are in contact with the raceway. According to the raceway size marked on the reference, the measuring gauge needle 432 is adjusted to make the standard reading the same as the reference raceway size, and the calibration is completed.

[0035] After calibration is completed, measure other processed rings during the processing. During the measurement process, confirm the processed raceway size according to the reading of measuring table 432.

[0036] In one embodiment, the positioning pipe ruler claw sleeve 310 is detachably mounted on the pipe ruler body 100 .

[0037] In one embodiment, the measuring ruler claw sleeve 410 is detachably mounted on the ruler body 100 .

[0038] The above-mentioned large-scale thrust spherical roller bearing raceway measuring ruler has the positioning ruler claw sleeve 310 and the measuring ruler claw sleeve 410 respectively sleeved on the ruler body 100. During use, the positioning ruler claw sleeve 310 and the measuring ruler claw sleeve 410 can be adjusted in position, such as Figure 1 As shown, the raceway positioning gauge head 300 and the raceway measuring gauge head 400 are installed between the two end surface positioning gauge heads 200 to measure the raceway of the outer ring. After the measurement is completed, Figure 2As shown, the two end surface positioning gauge heads 200, the raceway positioning gauge head 300 and the raceway measuring gauge head 400 are disassembled and their positions are adjusted. The two end surface positioning gauge heads 200 are installed between the raceway positioning gauge head 300 and the raceway measuring gauge head 400 to measure the inner ring raceway and complete the measurement.

[0039] In one embodiment, the positioning moving rod 320 is slidably connected to the positioning tube ruler claw sleeve 310 so that the positioning moving rod 320 can move relative to the positioning tube ruler claw sleeve 310 along the length direction of the positioning moving rod 320 .

[0040] In one embodiment, the measuring moving rod 420 is slidably connected to the measuring tube ruler claw sleeve 410 , so that the measuring moving rod 420 can move relative to the measuring tube ruler claw sleeve 410 along the length direction of the measuring moving rod 420 .

[0041] In the above-mentioned large-scale thrust spherical roller bearing raceway measuring ruler, the positioning movable rod 320 can move relative to the positioning ruler claw sleeve 310 along the length direction of the positioning movable rod 320, and the measuring movable rod 420 can move relative to the measuring ruler claw sleeve 410 along the length direction of the measuring movable rod 420. When calibrating the ruler, it can be adjusted up and down, left and right at will without restriction. This avoids the situation that the ruler cannot contact the raceway when calibrating due to the special structure of the thrust spherical roller bearing.

[0042] In one embodiment, the measuring gauge 432 includes a dial gauge and / or a micrometer.

[0043] In one embodiment, the positioning fulcrum assembly 330 includes a support rod fixing member 332 pin-connected to the positioning moving rod 320 , and a positioning raceway support rod 331 detachably connected to the support rod fixing member 332 .

[0044] In one embodiment, the end surface positioning pipe ruler head 200 includes an end surface positioning claw sleeve 210 slidably mounted on the pipe ruler body 100 , and an end surface support member 220 connected to the end surface positioning claw sleeve 210 , and the end surface support member 220 is provided with an end surface fulcrum 221 .

[0045] In one embodiment, two end surface positioning pipe ruler heads 200 are provided.

[0046] Preferably, in one embodiment, the cross section of the pipe ruler body 100 is a hexagon. This configuration has high strength and is not prone to deformation and distortion; and can limit the positioning pipe ruler claw sleeve 310, the measuring pipe ruler claw sleeve 410 and the end surface positioning claw sleeve 210 installed on the pipe ruler body 100 in the circumferential direction to avoid relative rotation during the measurement process.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be 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, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set 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", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

Claims

1. A large-scale thrust spherical roller bearing raceway measuring tube ruler, characterized in that: include Pipe ruler body; An end face positioning pipe ruler head is detachably fixed to the pipe ruler body, and the end face positioning pipe ruler head has an end face fulcrum for abutting against the end face of the ferrule; The track positioning pipe ruler head comprises a positioning pipe ruler claw sleeve fixed to the pipe ruler body, a positioning movable rod connected to the positioning pipe ruler claw sleeve, and a positioning fulcrum assembly hinged to the positioning movable rod, wherein the positioning fulcrum assembly comprises a positioning track support rod capable of rotating relative to the positioning movable rod, so that the positioning track support rod is vertically abutted against the ferrule track; The raceway measuring pipe ruler head comprises a measuring pipe ruler claw sleeve fixed to the pipe ruler body, a measuring moving rod connected to the measuring pipe ruler claw sleeve, and a measuring fulcrum assembly hinged to the measuring moving rod, wherein the measuring fulcrum assembly comprises a measuring table fixing part which can rotate relative to the measuring moving rod to fix the measuring table and make the measuring end contact the raceway of the ring vertically.

2. A large-scale thrust spherical roller bearing raceway measuring ruler according to claim 1, characterized in that: The positioning pipe ruler claw sleeve is detachably sleeved on the pipe ruler body.

3. A large-scale thrust spherical roller bearing raceway measuring ruler according to claim 1, characterized in that: The measuring pipe ruler claw sleeve is detachably sleeved on the pipe ruler body.

4. A large-scale thrust spherical roller bearing raceway measuring ruler according to claim 1, characterized in that: The positioning moving rod is slidably connected to the positioning tube ruler claw sleeve, so that the positioning moving rod can move relative to the positioning tube ruler claw sleeve along the length direction of the positioning moving rod.

5. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to claim 1, characterized in that: The measuring moving rod is slidably connected to the measuring tube ruler claw sleeve, so that the measuring moving rod can move relative to the measuring tube ruler claw sleeve along the length direction of the measuring moving rod.

6. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to any one of claims 1 to 5, characterized in that: The measuring gauge comprises a dial gauge and / or a micrometer.

7. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to any one of claims 1 to 5, characterized in that: The positioning fulcrum assembly comprises a support rod fixing piece connected to the positioning movable rod pin shaft, and a positioning roller support rod detachably connected to the support rod fixing piece.

8. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to any one of claims 1 to 5, characterized in that: The end surface positioning pipe ruler head comprises an end surface positioning claw sleeve slidably sleeved on the pipe ruler body, and an end surface support member connected to the end surface positioning claw sleeve, wherein the end surface support member is provided with the end surface fulcrum.

9. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to any one of claims 1 to 5, characterized in that: Two end surface positioning pipe ruler heads are provided.

10. A large-scale thrust spherical roller bearing raceway measuring tube ruler according to any one of claims 1 to 5, characterized in that: The cross section of the pipe ruler body is hexagonal.

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