Bearing seal groove depth detector and use method thereof

Abstract

The present invention relates to a bearing sealing groove depth detector and a method for using the same, which includes a platform bracket, a dial indicator, and the dial indicator is provided with a grip and a measuring head. The platform bracket is provided with a vertical plate, and a dial indicator fixing seat is integrated on the vertical plate. The dial indicator fixing seat is provided with a sleeve hole that is slidably matched with the grip, and the sleeve hole and the grip are fixed by screws. One end of the dial indicator fixing seat is provided with an end face backer that protrudes relative to the outer side surface of the vertical plate, and the end face backer is provided with an end face that abuts against the end face of the outer ring of the bearing to be measured, and a telescopic hole that telescopically matches with the dial indicator measuring head; when the end face of the end head of the dial indicator measuring head is flush with the end face of the end face backer, the dial indicator is at zero position. When in use, the measuring head is inserted into the outer ring sealing groove of the bearing as a whole and pressed tightly, and then the outer ring of the bearing to be measured is pressed against the end face of the end face backer, and the amount of the measuring head inserted into the outer ring sealing groove of the bearing is the sealing groove depth, and the value displayed by the dial indicator is the groove depth. The measurement accuracy is relatively accurate, which greatly improves the detection efficiency.

Description

Technical Field

[0001] The invention relates to the field of bearing detection and is a bearing sealing groove depth detector and a use method thereof. Background Art

[0002] The groove depth dimensional accuracy of the bearing outer ring seal groove directly affects the reliability of the seal end cover installation, so it is necessary to detect the bearing seal groove depth before installing the seal end cover. Figure 5 The needle tip depth gauge in the bearing seal groove is used for detection, that is, the needle tip picks a point in the bearing seal groove, and the corresponding value is read as the bearing seal groove depth value. However, this detection method often reads different values ​​due to different contact points between the needle tip and the bearing groove, which greatly affects the accuracy of the value, and the detection efficiency is also low. Therefore, the existing bearing seal groove depth detection equipment needs to be improved. Summary of the invention

[0003] To overcome the above shortcomings, the purpose of the present invention is to provide a bearing seal groove depth detector and its use method to the art, so as to solve the technical problems of poor detection accuracy and low efficiency of existing similar detectors. The purpose is achieved through the following technical solutions.

[0004] A bearing sealing groove depth detector, which includes a platform bracket and a dial indicator. The dial indicator is provided with a grip rod and a measuring head that extends out of the grip rod and is elastically retractable. The key structural features of the invention are that the platform bracket is provided with a vertical plate, and a dial indicator fixing seat is integrated on the vertical plate. The dial indicator fixing seat is provided with a sleeve hole for slidingly cooperating with the grip rod of the dial indicator. The sleeve hole and the grip rod of the dial indicator are fixed by screws. One end of the dial indicator fixing seat is provided with an end face backer that protrudes relative to the outer side surface of the vertical plate. The end face backer is provided with an end face that abuts against the outer ring end face of the bearing to be measured, and a telescopic hole that telescopically cooperates with the measuring head of the dial indicator. The measuring head of the dial indicator is provided with an end head for extending into the outer ring sealing groove of the bearing to be measured and abutting against the bottom of the groove. The dial indicator displays the amount of the measuring head extending out of the end face backer, that is, when the end face of the end of the measuring head is flush with the end face of the end face backer, the dial indicator is at zero position. Through the above structure, the measuring head is directly inserted into the sealing groove of the outer ring of the bearing as a whole and pressed tightly, so that the contact point is relatively stable and the operation is relatively convenient; then the outer ring of the bearing to be measured is pressed against the end face of the end face backing, and the amount by which the measuring head is inserted into the sealing groove of the outer ring of the bearing is the depth of the sealing groove of the outer ring of the bearing, and the value displayed on the dial indicator is the groove depth, the measurement accuracy is relatively accurate, and the detection efficiency is greatly improved.

[0005] In the bearing seal groove depth detector, the vertical plate is provided with a mounting hole, the end face backing of one end of the dial gauge fixing seat passes through the mounting hole and extends to the outside of the vertical plate, and the other end of the dial gauge fixing seat is limited to the inside of the vertical plate and is locked and fixed to the vertical plate by screws. With this structure, it is convenient to replace the end face backing to achieve the installation of dial gauges of different sizes or the detection of outer ring seal grooves of bearings of different sizes.

[0006] In the above-mentioned bearing seal groove depth detector, the measuring head end of the dial indicator is in the shape of a frustum. With this structure, the inclination of the frustum of the measuring head can be used to improve the applicable detection range to a certain extent.

[0007] In the above-mentioned bearing seal groove depth detector, the middle part of the end face of the dial gauge measuring head is provided with a threaded hole, and the threaded hole is connected with a standard end head for extending into the outer ring seal groove of the bearing to be tested and abutting against the bottom of the groove, and the outer side surface of the end face backing of the dial gauge fixing seat is sleeved with a standard sleeve abutting against the outer ring end face of the bearing to be tested, and a matching hole suitable for telescopic matching of the standard end head is formed between the end face of the standard sleeve and the end face of the end face backing, and the dial gauge displays the amount of the standard end head extending out of the end face of the standard sleeve, that is, when the standard end head of the dial gauge extends into the matching hole and the end face of the standard end head is flush with the end face of the standard sleeve, the dial gauge is at zero position. Through this structure, the detection of different bearing seal groove depths can be achieved by simply replacing the standard end head and the corresponding standard sleeve, and the scope of application is wider.

[0008] Furthermore, at least one standard sleeve is sleeved between the standard sleeve and the end face backer, and the end face of the standard sleeve is flush with the end face of the end face backer. By providing the standard sleeve, standard sleeves of different diameters can be installed.

[0009] In the above-mentioned bearing seal groove depth detector, the dial indicator can be replaced by a micrometer, which can also achieve the detection purpose.

[0010] There are two methods for using the above-mentioned bearing sealing groove depth detector. When the outer diameter of the end of the dial indicator measuring head is within the groove hole range of the outer ring sealing groove of the bearing to be tested, the bearing sealing groove depth is directly detected using the dial indicator measuring head and the end face backer, that is: first, a standard flat plate is used to support the end face backer so that the end face of the measuring head is flush with the end face of the end face backer, and the dial indicator is adjusted to zero; next, the sealing groove of the outer ring of the bearing to be tested is directly mounted on the measuring head of the dial indicator, so that the end of the measuring head is extended into the outer ring sealing groove of the bearing to be tested and is against the bottom of the groove, and the bearing to be tested is pushed so that the outer ring end face of the bearing to be tested is against the end face of the end face backer. At this time, the amount of extension of the measuring head into the outer ring sealing groove of the bearing to be tested is the depth value, which is displayed on the dial indicator.

[0011] When the outer ring aperture of the bearing to be tested is larger than the end outer diameter of the dial gauge measuring head, select the corresponding standard sleeve according to the end face diameter of the outer ring of the bearing to be tested, and at the same time, select the corresponding number or size of standard bushings according to the aperture of the standard sleeve, and set the standard bushing on the outside of the end face backing, and the standard sleeve on the outside of the standard bushing, and then thread the standard end corresponding to the groove depth and outer diameter of the outer ring sealing groove of the bearing to be tested to the end face of the dial gauge measuring head, and the above is to complete the settings before the bearing sealing groove detection; During the inspection, a standard flat plate is used to press against the end face of the standard sleeve so that the end face of the standard end head is flush with the end face of the standard sleeve, and the dial indicator is adjusted to the zero position; next, the sealing groove of the outer ring of the bearing to be tested is directly mounted on the standard end head, so that the standard end head is inserted into the sealing groove of the outer ring of the bearing to be tested and abuts against the bottom of the groove, and the bearing to be tested is pushed so that the end face of the outer ring of the bearing to be tested abuts against the end face of the standard sleeve. At this time, the amount of extension of the standard end head into the sealing groove of the outer ring of the bearing to be tested is the depth value, which is displayed on the dial indicator.

[0012] The overall structure of the present invention is relatively simple, and it can perform large-scale, rapid and stable detection of the depth of the bearing sealing groove. It has high detection accuracy and efficiency, good adjustability, and is applicable to a wide range of bearings. It is suitable for use as a depth detector for various types of bearing sealing grooves, or a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0014] Figure 2 It is a side structural schematic diagram of the present invention, in which a part is cut away.

[0015] Figure 3 yes Figure 2 Schematic diagram of the improved structure, with a partial cross-section in the figure.

[0016] Figure 4 yes Figure 3 Schematic diagram of the improved structure, with a partial cross-section in the figure.

[0017] Figure 5 It is a reference diagram of the use status of the existing bearing outer ring sealing groove detector.

[0018] The serial numbers and names in the figure are: 1. Platform bracket, 101. Vertical plate, 102. Mounting hole, 2. Dial indicator fixing seat, 201. End face backrest, 3. Dial indicator, 301. Measuring head, 302. Grip, 4. Outer ring, 401. Sealing groove, 5. Standard end, 6. Standard sleeve, 601. Matching hole, 7. Standard sleeve. DETAILED DESCRIPTION

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] like Figure 1 , Figure 2 As shown, the bearing seal groove depth detector includes a platform bracket 1, a dial indicator 3, the dial indicator is provided with a grip 302, and a measuring head 301 extending out of the grip to be elastically retractable, the bottom of the platform bracket is a horizontal plate, a vertical plate 101 is provided perpendicular to the horizontal plate, and a mounting hole 102 for mounting a dial indicator fixing seat 2 is provided on the vertical plate, and the specific installation structure is as follows: a sleeve-shaped end face support 201 is provided at one end of the dial indicator fixing seat, and the end face support passes through and extends out of the mounting hole to the outside of the vertical plate, and the other end of the dial indicator fixing seat is limited to the inside of the vertical plate, and is locked and fixed with the vertical plate by screws. The dial indicator fixing seat is provided with a sleeve hole for slidingly matching with the grip of the dial indicator, and the sleeve hole is fixed with the grip of the dial indicator by screws, and the end face support of the dial indicator fixing seat is provided with an end face that abuts against the end face of the outer ring 4 of the bearing to be tested, and a telescopic hole that telescopically matches with the measuring head of the dial indicator. The measuring head of the dial indicator is provided with an end for extending into the outer ring sealing groove 401 of the bearing to be tested and abutting against the bottom of the groove. The dial indicator displays the amount by which the measuring head extends out of the end face backing, that is, when the end face of the measuring head end is flush with the end face of the end face backing, the dial indicator is at zero position.

[0021] When in use, it is only necessary to extend the measuring head 301 of the dial indicator 3 into the sealing groove 401 of the outer ring 4 of the bearing to be tested and press it tightly, so that the outer ring of the bearing to be tested is against the end face of the end face backing 201, and the value of the current measuring head extending into the outer ring sealing groove can be read from the dial indicator. This value is the depth value of the bearing sealing groove. By comparing this depth value with the standard value, it can be determined whether the depth of the sealing groove of the bearing to be tested is qualified.

[0022] Furthermore, the tip of the measuring head 301 of the dial gauge 3 may also be designed to be in the shape of a frustum. By utilizing the slope of the frustum, the applicable range of the depth detection of the sealing groove 401 of the bearing outer ring 4 can be increased to a certain extent.

[0023] like Figure 3 As shown, the above structure can also be improved to meet the requirements of groove depth detection of different bearing sealing grooves 401. A threaded hole is provided in the middle of the end face of the measuring head 301 of the dial gauge 3, and a standard end head 5 is connected to the threaded hole for extending into the sealing groove of the outer ring 4 of the bearing to be tested and abutting against the bottom of the groove. The outer side surface of the end face backer 201 of the dial gauge fixing seat 2 is sleeved with a standard sleeve 6 that abuts against the end face of the outer ring of the bearing to be tested, and a matching hole 601 suitable for telescopic matching of the standard end head is formed between the end face of the standard sleeve and the end face of the end face backer. The dial gauge is set to display a value that is the amount of the standard end head extending out of the end face of the standard sleeve, that is, when the standard end head of the dial gauge extends into the matching hole and the end face of the standard end head is flush with the end face of the standard sleeve, the dial gauge is at zero position.

[0024] like Figure 4As shown, in order to further improve the applicable range of the bearing seal groove 401 depth detection, the above Figure 3 At least one standard sleeve 7 is sleeved between the standard sleeve 6 and the end face backer 201, and the end face of the standard sleeve is flush with the end face of the end face backer. The standard sleeve can be further adapted to the larger size of the standard sleeve, so as to match the larger size of the standard end head, and is used to detect the depth of the sealing groove of the larger size bearing, which has a stronger applicability.

[0025] When the above-mentioned improved method is used, it is only necessary to extend the standard end head 5 into the sealing groove 401 of the outer ring 4 of the bearing to be tested and press it tightly so that the outer ring of the bearing to be tested and the end face of the standard sleeve 6 are pressed against each other. The value of the current standard end head extending into the outer ring sealing groove can be read from the dial indicator. This value is the depth value of the bearing sealing groove. By comparing this depth value with the standard value, it can be determined whether the depth of the sealing groove of the bearing to be tested is qualified.

[0026] The above contents are intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Those skilled in the art can make obvious improvements to the present invention in combination with existing common knowledge, which also fall within the protection scope of the claims of the present invention.

Claims

1. A bearing seal groove depth detector, comprising a platform support (1), a dial indicator (3), the dial indicator having a grip (302), and a measuring head (301) extending out of the grip to elastically extend, characterized in that The platform support (1) is provided with a vertical plate (101), on which a dial gauge fixing seat (2) is integrated. The dial gauge fixing seat is provided with a sleeve hole for slidingly cooperating with a grip rod (302) of the dial gauge (3), and the sleeve hole is fixed to the grip rod of the dial gauge by screws. One end of the dial gauge fixing seat is provided with an end face backer (201) protruding relative to the outer side surface of the vertical plate, and the end face backer is provided with an end face that abuts against the end face of the outer ring (4) of the bearing to be measured, and a telescopic hole that telescopically cooperates with the measuring head (301) of the dial gauge; the measuring head of the dial gauge is provided with an end head for extending into the outer ring sealing groove (401) of the bearing to be measured and abutting against the bottom of the groove, and the dial gauge displays the amount of the measuring head extending out of the end face backer, that is, when the end face of the measuring head end is flush with the end face of the end face backer, the dial gauge is at zero position; the middle part of the end face of the measuring head (301) of the dial gauge (3) is provided with a screw The threaded hole is connected to a standard end head (5) for extending into the sealing groove (401) of the outer ring (4) of the bearing to be tested and abutting against the bottom of the groove, and the standard end head corresponds to the groove depth and outer diameter of the sealing groove of the outer ring of the bearing to be tested; the outer side surface of the end face backer (201) of the dial gauge fixing seat (2) is sleeved with a standard sleeve (6) abutting against the end face of the outer ring of the bearing to be tested, and a matching hole (601) suitable for telescopic matching of the standard end head is formed between the end face of the standard sleeve and the end face of the end face backer, and the dial gauge displays the amount of the standard end head extending out of the end face of the standard sleeve, that is, when the standard end head of the dial gauge extends into the matching hole and the end face of the standard end head is flush with the end face of the standard sleeve, the dial gauge is at zero position; at least one standard cushion sleeve (7) is sleeved between the standard sleeve (6) and the end face backer (201), and the end face of the standard cushion sleeve is flush with the end face of the end face backer.

2. The bearing seal groove depth detector according to claim 1, characterized in that The vertical plate (1) is provided with a mounting hole (102), and an end face support (201) at one end of the dial gauge fixing seat (2) passes through the mounting hole and extends out to the outside of the vertical plate. The other end of the dial gauge fixing seat is limited to the inside of the vertical plate and is fixed to the vertical plate by screws.

3. The bearing seal groove depth detector according to claim 1, characterized in that The end of the measuring head (301) of the dial gauge (3) is in the shape of a frustum.

4. The bearing seal groove depth detector according to claim 1, characterized in that The dial indicator (3) is replaced by a micrometer.

5. A method for using the bearing seal groove depth detector according to claim 1, characterized in that When the aperture of the outer ring (4) of the bearing to be tested is larger than the outer diameter of the end of the measuring head (301) of the dial gauge (3), a corresponding standard sleeve (6) is selected according to the end face diameter of the outer ring (401) of the bearing to be tested. At the same time, a corresponding number or size of standard bushings (7) are selected according to the aperture of the standard sleeve. The standard bushing is sleeved on the outside of the end face backing (201), and the standard sleeve is sleeved on the outside of the standard bushing. The standard end (5) corresponding to the depth and outer diameter of the seal groove of the outer ring of the bearing to be tested is then threadedly connected to the end face of the measuring head of the dial gauge. That is, the settings before the bearing sealing groove detection are completed; during the detection, a standard flat plate is used to press against the end face of the standard sleeve, so that the end face of the standard end head is flush with the end face of the standard sleeve, and the dial indicator is adjusted to zero; next, the sealing groove of the outer ring of the bearing to be tested is directly sleeved on the standard end head, so that the standard end head is inserted into the sealing groove of the outer ring of the bearing to be tested and abuts against the bottom of the groove, and the bearing to be tested is pushed so that the end face of the outer ring of the bearing to be tested abuts against the end face of the standard sleeve. At this time, the amount of extension of the standard end head into the sealing groove of the outer ring of the bearing to be tested is the depth value, which is displayed on the dial indicator.

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