Tool for measuring flange angle of cylindrical roller bearing ring

Abstract

The utility model discloses a tool for measuring the flange angle of a cylindrical roller bearing ring. The tool comprises a base, three base fulcrums, two spring supporting legs, a movable supporting leg and a measuring meter. A first inverted-T-shaped groove is formed in the transverse center line of the top face of the base, a second inverted-T-shaped groove is formed in a line which forms an angle of + 45 degrees with the transverse center line, and a third inverted-T-shaped groove is formed in a line which forms an angle of-45 degrees with the transverse center line. The three base fulcrums are mounted in the first inverted T-shaped groove, the second inverted T-shaped groove and the third inverted T-shaped groove of the base in a one-to-one correspondence manner; the two spring supporting legs are installed in the second inverted-T-shaped groove and the third inverted-T-shaped groove in a one-to-one correspondence mode. The movable supporting leg is installed in the first inverted-T-shaped groove and is opposite to the base fulcrum installed in the first inverted-T-shaped groove. The measuring meter is installed in the first inverted-T-shaped groove of the base through a meter seat. The flange angle measuring device is simple in structure, convenient to disassemble and assemble and capable of meeting the requirement for measuring the flange angles of cylindrical roller bearing rings of various sizes.

Description

Technical Field

[0001] The utility model relates to a tool for measuring the angle of a cylindrical roller bearing ring rib. Background Art

[0002] The bearing ring rib angle (negative back angle) is a key bearing performance indicator. This special structure facilitates the formation of an oil film on the ring rib, providing excellent lubrication for the roller end faces and increasing the ring's ability to carry axial loads. Traditionally, measurement methods use a dedicated G906 instrument, using a torsion spring gauge to qualitatively read the range of the negative back angle, but cannot quantitatively determine its actual value. Furthermore, due to the unique location of the negative back angle measurement, traditional methods are difficult and inefficient, with low accuracy and repeatability. After repeated experiments, a new method for measuring the negative back angle of bearing rings using a profilometer was developed. This method has been applied in practical measurements, achieving satisfactory results. The angle of the cylindrical roller bearing ring rib is typically measured using angle template comparison, but this method is subject to significant errors and is difficult to measure. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a cylindrical roller bearing sleeve rib angle measuring tool, which has a simple structure and is easy to disassemble and assemble, and can meet the measurement of the rib angles of cylindrical roller bearing rings of various sizes.

[0004] The purpose of the utility model is achieved as follows: a cylindrical roller bearing ring rib angle measuring tool, including a base, three base fulcrums, two spring support feet, a movable support foot and a measuring table; wherein,

[0005] The base has a rectangular plane, and a first inverted T-shaped groove is provided on the top surface of the base on the transverse center line, a second inverted T-shaped groove is provided on a line at a +45° angle to the transverse center line, and a third inverted T-shaped groove is provided on a line at a -45° angle to the transverse center line; the first inverted T-shaped groove, the second inverted T-shaped groove, and the third inverted T-shaped groove intersect at the center of the top surface of the base;

[0006] The three base fulcrums are mounted in the first inverted T-shaped groove, the second inverted T-shaped groove, and the third inverted T-shaped groove of the base in a one-to-one correspondence. The centers of the support heads provided on the three base fulcrums are all located on a circle with the center of the top surface of the base as the center and a diameter smaller than the outer diameter of the bearing ring and larger than the inner diameter of the bearing ring. The center lines connecting the support heads on the three base fulcrums form an isosceles triangle.

[0007] The two spring support legs are installed in the second inverted T-shaped groove and the third inverted T-shaped groove of the base in a one-to-one correspondence and are opposite to the base support points installed in the second T-shaped groove and the base support points in the third inverted T-shaped groove in a one-to-one correspondence;

[0008] The movable support foot is installed in the first inverted T-shaped groove of the base and is opposite to the base support point installed in the first inverted T-shaped groove; the horizontal ends of the two spring support feet and the horizontal end of the movable support foot are both located on a circle that is adapted to the outer diameter of the bearing ring;

[0009] The measuring meter is installed in the first inverted T-shaped groove of the base through a meter seat.

[0010] The above-mentioned cylindrical roller bearing ring rib angle measuring tool, wherein the base fulcrum includes a fulcrum seat and a support head; the fulcrum seat is a rectangular block and a countersunk hole and a hemispherical groove are provided on the top surface, one inside and one outside; the fulcrum seat is connected to a nut provided at the bottom of the first inverted T-shaped groove or the bottom of the second inverted T-shaped groove or the bottom of the third inverted T-shaped groove through a bolt inserted in the countersunk hole; the support head is a steel ball and is installed in the hemispherical groove of the fulcrum seat.

[0011] The above-mentioned cylindrical roller bearing ring rib angle measuring tool, wherein the spring support foot includes a sleeve, an open ring installed on the sleeve, a support foot seat fixed on the outer surface of the open ring and with a blind hole on the outer end surface, and a spring and a support rod installed inside and outside the blind hole of the support foot seat; the spring support foot is connected to a nut provided at the bottom of the second inverted T-shaped groove or the bottom of the third inverted T-shaped groove through a bolt inserted in the sleeve, so that the outer end of the support rod rests on the outer diameter surface of the bearing ring.

[0012] The above-mentioned cylindrical roller bearing ring rib angle measuring tool, wherein the movable support foot includes a mounting block and an adjusting screw; the mounting block is in an inverted T-shape and includes a horizontal part and a vertical part fixed in the middle of the top surface of the horizontal part, and a countersunk hole is opened on each side of the vertical part on the top surface of the horizontal part, so that the mounting block is connected to the two nuts provided at the bottom of the first inverted T-shaped groove through two screws inserted into the two countersunk holes one by one; a threaded through hole is opened horizontally on the side surface of the vertical part; the adjusting screw is installed in the threaded through hole of the vertical part, and the horizontal projection of the axis of the adjusting screw is located on the transverse center line on the top surface of the base, and the end of the adjusting screw is against the outer diameter surface of the bearing ring.

[0013] The above-mentioned measuring tool for the angle of the cylindrical roller bearing ring rib, wherein a countersunk hole is opened on the top surface of one side of the table seat, and an inverted conical support seat is fixed on the top surface of the other side of the table seat; the table seat is connected to a nut provided at the bottom of the first inverted T-shaped groove by a screw inserted into the countersunk hole of the table seat; the measuring gauge is a micrometer and is installed on the top surface of the support seat.

[0014] The characteristics of the measuring tool for the cylindrical roller bearing ring rib angle of the utility model are:

[0015] 1) Solved the problem of difficulty in measuring the angle of cylindrical roller ribs using angle templates;

[0016] 2) The structure is simple and easy to disassemble and assemble, which can meet the measurement of the rib angle of cylindrical roller bearing rings of various sizes;

[0017] 3) The use of the measuring tool of the utility model can simplify the measuring method, so that workers can directly measure the bearing ring at the processing site and accurately reflect the rib angle of the bearing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the measuring tool for the rib angle of a cylindrical roller bearing ring of the present invention (measuring the outer ring of the bearing);

[0019] Figure 2 yes Figure 1 AA view in the;

[0020] Figure 3a It is a top view of the base fulcrum in the measuring tool of the utility model;

[0021] Figure 3b yes Figure 3a BB view in the figure;

[0022] Figure 4a This is a top view of the spring support foot in the measuring tool of the present invention;

[0023] Figure 4b This is a front view of the spring support foot in the measuring tool of the present invention;

[0024] Figure 5a It is a top view of the movable support foot in the measuring tool of the present utility model;

[0025] Figure 5b This is a front view of the movable support foot in the measuring tool of the present utility model;

[0026] Figure 6a It is a top view of the measuring table in the measuring tool of the utility model;

[0027] Figure 6bThis is a front view of the measuring table in the measuring tool of the present utility model;

[0028] Figure 7 This is a top view of the tooling for measuring the rib angle of a cylindrical roller bearing ring of the present invention (for measuring the inner ring of the bearing);

[0029] Figure 8 yes Figure 7 CC view in . DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings.

[0031] See also Figures 1 to 8 The measuring tool for the cylindrical roller bearing ring rib angle of the utility model includes a base 1, three base fulcrums 2, two spring support feet 3, a movable support foot 4 and a measuring table 5.

[0032] The plane of the base 1 is rectangular, and a first inverted T-shaped groove 11 is provided on the top surface of the base 1 on the transverse center line, a second inverted T-shaped groove 12 is provided on a line at +45° to the transverse center line, and a third inverted T-shaped groove 13 is provided on a line at -45° to the transverse center line; the first inverted T-shaped groove 11, the second inverted T-shaped groove 12 and the third inverted T-shaped groove 13 intersect at the center of the top surface of the base 1.

[0033] The three base fulcrums 2 are installed in the first inverted T-shaped groove 11, the second inverted T-shaped groove 12 and the third inverted T-shaped groove 13 of the base 1 in a one-to-one correspondence, and each base fulcrum 2 includes a fulcrum seat 21 and a support head 22; wherein, the fulcrum seat 21 is a rectangular block with a width greater than the upper width of the first inverted T-shaped groove 11 and a countersunk hole 23 and a hemispherical groove are provided on the top surface, one inside and one outside, and the fulcrum seat 21 is connected to a nut 62 provided at the bottom of the first inverted T-shaped groove 11 or the bottom of the second inverted T-shaped groove 12 or the bottom of the third inverted T-shaped groove 13 through a bolt 61 inserted in the countersunk hole 23; the support head 22 is a steel ball and is installed in the hemispherical groove of the fulcrum seat 21; the centers of the support heads 22 provided on the three base fulcrums 2 are all located on a circle with the center of the top surface of the base 1 as the center and a diameter less than the outer diameter of the bearing ring and greater than the inner diameter of the bearing ring, and the center line connecting the support heads 22 on the three base fulcrums 2 is an isosceles triangle.

[0034] The two spring support feet 3 are installed in the second inverted T-shaped groove 12 and the third inverted T-shaped groove 13 of the base 1 in a one-to-one correspondence and are opposite to the base fulcrum 2 installed in the second T-shaped groove 12 and the base fulcrum 2 in the third inverted T-shaped groove 13 in a one-to-one correspondence; each spring support foot 3 includes a sleeve 31, an open ring 32 installed on the sleeve 31, a support foot seat 33 fixed on the outer surface of the open ring 32 and having a blind hole on the outer end surface, and a spring 34 and a support rod 35 installed in the blind hole of the support foot seat 33, one inside and one outside; the spring support foot 3 is connected to a nut 62 provided at the bottom of the second inverted T-shaped groove 12 or the bottom of the third inverted T-shaped groove 12 through a bolt 30 inserted in the sleeve 31, so that the outer end of the support rod 35 rests on the outer diameter surface of the bearing ring. The open ring 32 is screwed onto the sleeve 31 and can be adjusted to the height of the sleeve 31 according to the size of the bearing ring to be tested, that is, the height of the support rod 35 can be adjusted; the spring 34 is used to limit the range of movement of the support rod 35;

[0035] The movable support foot 4 is installed in the first inverted T-shaped groove 11 of the base 1 and is opposite to the base fulcrum 2 installed in the first inverted T-shaped groove 11; the movable support foot 4 includes a mounting block and an adjusting screw 40; wherein the mounting block is in an inverted T-shape and includes a horizontal portion 41 and a vertical portion 43 fixed to the middle of the top surface of the horizontal portion 41, the width of the horizontal portion 41 is greater than the upper width of the first inverted T-shaped groove 11, and a countersunk hole 43 is provided on each side of the vertical portion 42 on the top surface of the horizontal portion 41, so that the mounting block is fixed to the first inverted T-shaped groove 11 by two screws 61 inserted into the two countersunk holes 43 in a one-to-one correspondence. The two nuts 62 at the bottom of the inverted T-shaped groove 11 are connected; a threaded through hole is horizontally opened on the side surface of the vertical portion 42; the adjusting screw 40 is installed in the threaded through hole of the vertical portion 42, the horizontal projection of the axis of the adjusting screw 40 is located on the transverse center line of the top surface of the base 1, and the end of the adjusting screw 40 is against the outer diameter surface of the bearing ring; the outer ends of the support rods 35 of the two spring support legs 3 and the end of the adjusting screw 40 of the movable support leg 4 are both located on a circle adapted to the outer diameter of the bearing ring; by rotating the adjusting screw 40, the bearing ring can be pushed to move along the first inverted T-shaped groove 11;

[0036] The measuring gauge 5 is installed in the first inverted T-shaped slot 11 of the base 1 through the gauge base 50; a countersunk hole 51 is provided on the top surface of one side of the gauge base 50, and an inverted conical support base 52 is fixed to the top surface of the other side of the gauge base 50; the gauge base 50 is connected to a nut 62 provided at the bottom of the first inverted T-shaped slot 11 by a screw 61 inserted into the countersunk hole 51 of the gauge base 50; the measuring gauge 5 is a dial indicator, the dial indicator head is mounted on the top surface of the support base 52, and the measuring rod 5A of the dial indicator is hinged on the outer surface of the dial indicator head.

[0037] The measuring tool for the cylindrical roller bearing ring rib angle of the utility model includes the following steps when performing measurement:

[0038] Step 1, adjust the positions of the three base fulcrums 2, the positions of the two spring support feet 3 and the movable support foot 4 according to the outer diameter and inner diameter of the bearing ring to be measured; when adjusting the position of the base fulcrum 2, just loosen the connection between the screw 61 and the corresponding nut 62 on the fulcrum seat 21 first, then move the fulcrum seat 21 with the corresponding nut 62 to the appropriate position, and then tighten the screw 61 and the corresponding nut 62 on the fulcrum seat 21; when adjusting the position of the spring support foot 3, just loosen the connection between the bolt 30 in the sleeve 31 and the corresponding nut 62, then move the sleeve 31 with the corresponding nut 62 to the appropriate position, and then tighten the screw 61 in the sleeve 31 and the corresponding nut 62; when adjusting the position of the movable support foot 4, just loosen the connection between the bolt 30 and the corresponding nut 62 on the mounting block first, then move the mounting block with the corresponding nut 62 to the appropriate position, and then tighten the screw 61 and the corresponding nut 62 on the mounting block;

[0039] Step 2: Place the bearing ring on the support head 22 of the three base fulcrums 2 and clamp it to the center by the ends of the support rod 35 of the two spring support feet 3 and the end of the adjusting screw 40 of the movable support foot 4 at an angle of 90°.

[0040] Step 3: If the bearing ring to be measured is the outer ring 71, install the measuring gauge 5 on the inner side of the outer ring 71 so that the horizontal projection of the axis of the measuring rod 5A of the measuring gauge 5 is located on the top surface of the base 1 on the horizontal center line, and the end of the measuring rod 5A is against the lower rib of the outer ring 71 (see Figure 1 and Figure 2 If the bearing ring to be measured is the inner ring 72, install the measuring gauge 5 on the outside of the inner ring 72 so that the horizontal projection of the axis of the measuring rod 5A of the measuring gauge 5 is located on the top surface of the base 1 on the horizontal center line, and the end of the measuring rod 5A is against the lower rib of the inner ring 72 (see Figure 7 and Figure 8 ); When installing the measuring meter 5, first loosen the connection between the screw 61 on the meter base 50 and the corresponding nut 62, then move the meter base 50 and the corresponding nut 62 together to the appropriate position, and then tighten the screw 61 on the meter base 50 and the corresponding nut 62;

[0041] Step 4: By rotating the adjustment screw 40 of the movable support foot 4, the outer ring 71 or the inner ring 72 is pushed to move along the first inverted T-shaped groove 11 toward the measuring scale 5. During the movement of the outer ring 71 or the inner ring 72, the end of the measuring rod 5A of the measuring scale 5 is equivalent to moving from one end of the rib to the other end of the rib, thereby obtaining the difference a between the height of one end of the rib and the height of the other end of the rib;

[0042] Step 5: Based on the difference a between the height of one end of the rib and the height of the other end of the rib measured in Measurement Table 5 and the length b of the rib obtained by measurement, the inclination angle α of the rib is calculated using the trigonometric function tanα=a / b.

[0043] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those skilled in the art may make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by the claims.

Claims

1. A measuring tool for the angle of the rib of a cylindrical roller bearing ring, comprising a base, three base fulcrums, two spring support feet, a movable support foot and a measuring gauge; characterized in that: The base has a rectangular plane, and a first inverted T-shaped groove is provided on the top surface of the base on the transverse center line, a second inverted T-shaped groove is provided on a line at a +45° angle to the transverse center line, and a third inverted T-shaped groove is provided on a line at a -45° angle to the transverse center line; the first inverted T-shaped groove, the second inverted T-shaped groove, and the third inverted T-shaped groove intersect at the center of the top surface of the base; The three base fulcrums are mounted in the first inverted T-shaped groove, the second inverted T-shaped groove, and the third inverted T-shaped groove of the base in a one-to-one correspondence. The centers of the support heads provided on the three base fulcrums are all located on a circle with the center of the top surface of the base as the center and a diameter smaller than the outer diameter of the bearing ring and larger than the inner diameter of the bearing ring. The center lines connecting the support heads on the three base fulcrums form an isosceles triangle. The two spring support legs are installed in the second inverted T-shaped groove and the third inverted T-shaped groove of the base in a one-to-one correspondence and are opposite to the base support points installed in the second T-shaped groove and the base support points in the third inverted T-shaped groove in a one-to-one correspondence; The movable support foot is installed in the first inverted T-shaped groove of the base and is opposite to the base support point installed in the first inverted T-shaped groove; the horizontal ends of the two spring support feet and the horizontal end of the movable support foot are both located on a circle that is adapted to the outer diameter of the bearing ring; The measuring meter is installed in the first inverted T-shaped groove of the base through a meter seat.

2. The measuring tool for the cylindrical roller bearing ring rib angle according to claim 1 is characterized in that: The base fulcrum includes a fulcrum seat and a support head; the fulcrum seat is a rectangular block and has a countersunk hole and a hemispherical groove on the top surface, one inside and one outside. The fulcrum seat is connected to a nut provided at the bottom of the first inverted T-shaped groove or the bottom of the second inverted T-shaped groove or the bottom of the third inverted T-shaped groove through a bolt inserted in the countersunk hole; the support head is a steel ball and is installed in the hemispherical groove of the fulcrum seat.

3. The measuring tool for the cylindrical roller bearing ring rib angle according to claim 1, characterized in that: The spring support foot includes a sleeve, an open ring installed on the sleeve, a support foot seat fixed on the outer surface of the open ring and with a blind hole on the outer end surface, and a spring and a support rod installed in the blind hole of the support foot seat, one inside and one outside; the spring support foot is connected to a nut provided at the bottom of the second inverted T-shaped groove or the bottom of the third inverted T-shaped groove through a bolt inserted in the sleeve, so that the outer end of the support rod rests on the outer diameter surface of the bearing ring.

4. The measuring tool for the cylindrical roller bearing ring rib angle according to claim 1, characterized in that: The movable support foot includes a mounting block and an adjusting screw; the mounting block is in an inverted T-shape and includes a horizontal portion and a vertical portion fixed in the middle of the top surface of the horizontal portion, and a countersunk hole is provided on each side of the vertical portion on the top surface of the horizontal portion, so that the mounting block is connected to two nuts provided at the bottom of the first inverted T-shaped groove through two screws inserted into the two countersunk holes in a one-to-one manner; a threaded through hole is provided horizontally on the side surface of the vertical portion; the adjusting screw is installed in the threaded through hole of the vertical portion, and the horizontal projection of the axis of the adjusting screw is located on the transverse center line on the top surface of the base, and the end of the adjusting screw is against the outer diameter surface of the bearing ring.

5. The measuring tool for the cylindrical roller bearing ring rib angle according to claim 1, characterized in that: A countersunk hole is opened on the top surface of one side of the meter base, and an inverted conical support base is fixed on the top surface of the other side of the meter base; the meter base is connected to a nut provided at the bottom of the first inverted T-shaped slot by a screw inserted into the countersunk hole of the meter base; the measuring gauge is a micrometer and is mounted on the top surface of the support base.

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