CN110095046A - Bearing seal groove depth detector and its application method - Google Patents

Abstract

The invention relates to an instrument for detecting the depth of a bearing sealing groove and a method for using the same. The instrument comprises a platform support, a dial indicator, and the dial indicator is provided with a grip rod and a measuring head. The above-mentioned platform bracket is provided with a vertical plate, and the dial indicator fixing seat is integrated on the vertical plate. The dial indicator fixing seat is provided with a sleeve hole that slides and fits with the above-mentioned grip rod. The sleeve hole and the grip rod are fixed by screws, and the dial indicator is fixed. One end of the seat is provided with an end face that protrudes relative to the outer surface of the vertical plate, and the end face is provided with an end face that is against the end face of the outer ring of the bearing to be tested, and a telescopic hole that is telescopically matched with the dial gauge measuring head; When the end face of the end face is flush with the end face of the end face backing, the dial indicator is at zero. When in use, the measuring head is inserted into the sealing groove of the bearing outer ring as a whole and pressed tightly, and then the outer ring of the bearing to be tested is used to offset the end face of the end face against the mountain. The amount that the measuring head extends into the sealing groove of the bearing outer ring is the sealing groove depth. The value displayed by the dial indicator is the groove depth, and the measurement accuracy is relatively accurate, which greatly improves the detection efficiency.

Description

Bearing sealing groove depth tester and using method thereof

technical field

The invention relates to the field of bearing detection, and relates to a bearing sealing groove depth detector and a using method thereof.

Background technique

The dimensional accuracy of the groove depth of the sealing groove of the outer ring of the bearing directly affects the reliability of the installation of the sealing end cover, so it is necessary to detect the depth of the bearing sealing groove before installing the sealing end cover. The existing detection method for the depth of the sealing groove of the outer ring of the bearing is usually to use the needle point depth gauge in Figure 5 to detect, that is, to take a point in the bearing sealing groove through the needle point, so as to read the corresponding value, which is the depth of the bearing sealing groove value. However, in this detection method, the reading value is often different due to the different contact points between the needle tip and the bearing groove, which greatly affects the accuracy of the value, and the detection efficiency is not high at the same time. For this reason, it is necessary to improve the existing detection equipment for the sealing groove depth of bearings.

Contents of the invention

In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a bearing seal groove depth detector and its use method in the field, so as to solve the technical problems of poor detection accuracy and low efficiency of existing similar detectors. Its purpose is achieved through the following technical solutions.

A bearing seal groove depth detector, which includes a platform support, a dial indicator, the dial indicator is provided with a grip rod, and a measuring head extending elastically from the grip rod. The vertical plate is integrated with a dial indicator fixing seat, and the dial indicator fixing seat is provided with a sleeve hole for sliding cooperation with the handle of the dial indicator. Fixed, one end of the dial gauge fixing seat is provided with an end face that protrudes relative to the outer side of the vertical plate, and the end face is provided with an end face that is against the end face of the outer ring of the bearing to be tested, and is telescopically matched with the measuring head of the dial indicator telescopic hole; the measuring head of the dial indicator is provided with a terminal for extending into the sealing groove of the outer ring of the bearing to be tested and against the bottom of the groove, and the dial indicator shows that the measuring head protrudes from the end face against the mountain When the end face of the end of the measuring head is flush with the end face of the end face, the dial indicator is at zero. Through the above structure, the measuring head is used to directly extend into the sealing groove of the outer ring of the bearing and pressed tightly, so that the contact point is relatively stable and the operation is more convenient; The amount in 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 by the dial indicator is the groove depth. The measurement accuracy is relatively accurate and the detection efficiency is greatly improved.

In the above-mentioned bearing sealing groove depth detector, the vertical plate is provided with a mounting hole, the end face of one end of the dial gauge fixing seat passes through and protrudes from the mounting hole to the outside of the vertical plate, and the other end of the dial gauge fixing seat is limited It is located on the inner side of the vertical board and is fixed with the vertical board by screw locking. Through this structure, it is convenient to replace the above-mentioned end face backing to realize the installation of dial gauges of different sizes, or the detection of the sealing grooves of the outer rings of bearings of different sizes.

In the above instrument for measuring the depth of the bearing sealing groove, the end of the measuring head of the dial indicator is in the shape of a cone. Through this structure, the applicable range of detection can be improved to a certain extent by utilizing the inclination of the measuring head cone.

In the above-mentioned bearing sealing 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 for extending into the outer ring sealing groove of the bearing to be tested and touching the bottom of the groove. Head, the outer side of the end face of the dial gauge holder is socketed with a standard sleeve that is offset against the end face of the outer ring of the bearing to be tested, and a standard sleeve that is suitable for the standard is formed between the end face of the standard sleeve and the end face of the end face. The matching hole for the telescopic fit of the end, the dial indicator shows the amount that the standard end protrudes from the end face of the standard sleeve, that is, the standard end of the dial indicator extends into the matching hole, and the end face of the standard end is in line with the When the end face of the standard sleeve is flush, the dial indicator is at zero position. With this structure, the detection of the depth of sealing grooves of different bearings can be realized only by replacing the standard end and the corresponding standard sleeve, and the application range is wider.

Further, at least one standard cushion sleeve is sleeved between the standard sleeve and the end face backer, and the end face of the standard cushion cover is flush with the end face of the end face backer. By setting the standard cushion sleeve, it is suitable for the installation of standard sleeves of different diameters.

In the above instrument for detecting the depth of the sealing groove of the bearing, the dial gauge is replaced by a dial gauge, which can also achieve the purpose of detection.

There are two ways to use the above-mentioned bearing seal groove depth detector. When the outer diameter of the end of the dial gauge measuring head is within the range of the sealing groove hole of the outer ring of the bearing to be tested, the dial gauge measuring head is directly used Carry out the depth detection of the bearing seal groove with the end face backing, that is: firstly pass a standard plate against the end face backing, make the end face of the measuring head flush with the end face of the end face backing, and adjust the dial indicator to zero; The sealing groove of the outer ring of the bearing to be tested is directly sleeved on the measuring head of the dial indicator, so that the end of the measuring head extends into the sealing groove of the outer ring of the bearing to be tested and is offset against the bottom of the groove, and the bearing to be tested is pushed to make the bearing to be tested The end face of the outer ring of the bearing is offset against the end face of the end face. At this time, the amount of penetration of the measuring 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.

When the outer diameter of the outer ring of the bearing to be tested is greater than the outer diameter of the end of the dial gauge measuring head, select the corresponding standard sleeve according to the diameter of the end face of the outer ring of the bearing to be tested, and at the same time, select the corresponding number or size according to the aperture of the standard sleeve The standard gasket sleeve is set on the outside of the end face backing, the standard sleeve is sleeved on the outside of the standard gasket sleeve, and then the standard end thread corresponding to the depth and outer diameter of the sealing groove of the outer ring of the bearing to be tested Connect to the end face of the measuring head of the dial indicator, and the above is to complete the setting before the detection of the bearing seal groove; during the detection, a standard flat plate is used to resist the end face of the standard sleeve, so that the end face of the standard end is aligned with the end face of the standard sleeve and adjust the dial indicator to zero; next, set the sealing groove of the outer ring of the bearing to be tested directly on the standard end, so that the standard end extends into the sealing groove of the outer ring of the bearing to be tested and The bottom of the groove is offset, and the bearing to be tested is pushed, so that the end surface of the outer ring of the bearing to be tested is offset against the end surface of the standard sleeve. At this time, the amount that the standard end extends into the sealing groove of the outer ring of the bearing to be tested is the depth value. and displayed on the dial indicator.

The overall structure of the present invention is relatively simple, can quickly and stably detect the depth of bearing sealing grooves in large quantities, has high detection accuracy and efficiency, and has good adjustability. The depth detector is used, or the structural improvement of similar products.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a schematic view of the side structure of the present invention, in which a part is cut in section.

Fig. 3 is a schematic diagram of the improved structure of Fig. 2, and a part of it is cross-sectionally shown in the figure.

Fig. 4 is a schematic diagram of the improved structure of Fig. 3, and a part of it is cross-sectionally shown in the figure.

Fig. 5 is a reference diagram of the use state of the existing bearing outer ring seal groove tester.

The serial numbers and names in the figure are: 1. Platform support, 101, vertical plate, 102, installation hole, 2, dial indicator fixing seat, 201, end face backing, 3, dial indicator, 301, measuring head, 302, grip rod , 4, outer ring, 401, sealing groove, 5, standard end, 6, standard sleeve, 601, matching hole, 7, standard cushion cover.

Detailed ways

Now in conjunction with accompanying drawing, the present invention will be further described.

As shown in Figure 1 and Figure 2, the bearing sealing groove depth tester includes a platform support 1, a dial indicator 3, the dial indicator is provided with a handle 302, and a measuring head 301 extending elastically from the handle, and the platform support The bottom is a horizontal plate, and a vertical plate 101 is arranged perpendicular to the horizontal plate. The vertical plate is provided with a mounting hole 102 for installing the dial indicator holder 2. The installation specific structure is: one end of the dial indicator holder is provided with a sleeve-shaped The end face backer 201, the end face backer passes through and extends out of the mounting hole to the outside of the vertical plate, the other end of the dial gauge fixing seat is limited to the inner side of the vertical plate, and is locked and fixed with the vertical plate by screws. The dial indicator holder is provided with a sleeve hole for sliding fit with the handle of the dial indicator. The sleeve hole and the handle rod of the dial indicator are fixed by screws. The end faces of the outer ring 4 end faces against each other, and the telescopic holes that are telescopically matched with the measuring head of the dial indicator. The measuring head of the dial indicator is provided with a tip for extending into the outer ring sealing groove 401 of the bearing to be tested and touching the bottom of the groove. When it is flush with the end face of the end face, the dial indicator is at zero position.

When in use, you only need to insert 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 offset against the end face of the end face backer 201, and the Read the value of the current measuring head protruding into the sealing groove of the outer ring on the sub-meter, and this value is the depth value of the bearing sealing groove. By comparing the depth value with the standard value, it can be concluded whether the depth of the bearing sealing groove to be tested is qualified.

Further, the end of the measuring head 301 of the above-mentioned dial indicator 3 can also be designed in the shape of a truncated cone. By utilizing the slope of the truncated cone, the scope of application of the depth detection of the sealing groove 401 of the bearing outer ring 4 can be improved to a certain extent.

As shown in FIG. 3 , the above structure can also be improved so that it can meet the requirements for detecting the groove depth of different bearing sealing grooves 401 . The middle part of the end face of the dial indicator 3 measuring head 301 is provided with a threaded hole, and the threaded hole is connected with a standard end 5 that is used to extend into the sealing groove of the outer ring 4 of the bearing to be tested and offset against the bottom of the groove. The outer surface of the end face backer 201 of the dial indicator holder 2 is socketed with a standard sleeve 6 that is offset against the end face of the outer ring of the bearing to be tested, and a standard sleeve end face and the end face of the end face backer are formed between the end face of the standard sleeve. Mating holes 601 for fitting. The dial indicator is set so that the displayed value is the amount that the standard end protrudes from the end face of the standard sleeve, that is, when the standard end of the dial indicator extends into the matching hole, and the end face of the standard end is flush with the end face of the standard sleeve, The gauge is at zero.

As shown in Figure 4, in order to further improve the applicable range of the depth detection of the bearing sealing groove 401, at least one standard cushion sleeve 7 is set between the standard sleeve 6 and the end surface backer 201 in Figure 3 above, and the end surface of the standard cushion sleeve is in line with the The end faces of the above-mentioned end faces are flush with the mountain. Through the standard pad sleeve, it can further adapt to the larger size standard sleeve, so as to cooperate with the larger size standard end to detect the depth of the larger size bearing seal groove, and the applicability is stronger.

When using after the above improvements, just insert the standard end 5 into the sealing groove 401 of the outer ring 4 of the bearing to be tested and press against it, so that the outer ring of the bearing to be tested is offset against the end face of the standard sleeve 6, and the percent Read the value of the current standard end protruding into the sealing groove of the outer ring from the table. This value is the depth value of the bearing sealing groove. By comparing the depth value with the standard value, it can be concluded whether the depth of the bearing sealing groove to be tested is qualified.

The above content is intended to illustrate the technical means of the present invention, but not to limit the technical scope of the present invention. Obvious improvements to the present invention made by those skilled in the art in combination with the existing common knowledge also fall within the protection scope of the claims of the present invention.

Claims (8)

1. a kind of bearing seal groove depth detector comprising platform support (1), dial gauge (3), dial gauge are equipped with holding rod (302), and stretching holding rod is resilient flexible measuring head (301), it is characterised in that the platform support (1) is equipped with one piece and stands Plate (101) integrates on vertical plate and is equipped with dial gauge fixing seat (2), and dial gauge fixing seat is equipped with for holding with the dial gauge (3) The sets of holes that bar (302) is slidably matched, are screwed between sets of holes and the holding rod of dial gauge, and dial gauge fixing seat one end is equipped with Relative to the end face backer (201) of vertical plate lateral surface protrusion, end face backer is equipped with to offset with outer ring (4) end face of bearing to be measured End face, and the telescopic hole with measuring head (301) expansion fit of the dial gauge；The measuring head of the dial gauge is equipped with and is used for The end to offset in the outer ring seal groove (401) of bearing to be measured and with slot bottom is protruded into, the dial gauge shows that the measuring head is stretched When the amount of end face backer out, the i.e. end face of measuring head end and the end face of the end face backer, the dial gauge is in zero Position.

2. bearing seal groove depth detector according to claim 1, it is characterised in that the vertical plate (1) is equipped with installation Hole (102), the end face backer (201) of dial gauge fixing seat (2) one end is through and out the mounting hole to vertical plate outside, percentage The table fixing seat other end is limited in vertical plate inboard, and is fixed between vertical plate by screw locking.

3. bearing seal groove depth detector according to claim 1, it is characterised in that the measuring head of the dial gauge (3) (301) end is in pyramidal.

4. bearing seal groove depth detector according to claim 1, it is characterised in that dial gauge (3) measuring head (301) threaded hole is equipped in the middle part of end face, threaded hole is connected with outer ring (4) seal groove for protruding into the bearing to be measured (401) the standard end (5) to offset in and with slot bottom, the outside surface cover of the end face backer (201) of the dial gauge fixing seat (2) It is equipped with the standard set (6) to offset with the cycle surface of bearing to be measured, and shape between standard set end face and the end face of end face backer It is suitable for the matching hole (601) of standard end expansion fit at one, the dial gauge shows that the standard end is stretched out Standard covers the amount of end face, i.e. the standard end of dial gauge is protruded into the matching hole, and the end face of standard end and standard set When end face, dial gauge is in zero-bit.

5. bearing seal groove depth detector according to claim 4, it is characterised in that the standard set (6) and the end At least one standard cushion cover (7) is arranged between face backer (201), and the end face of standard cushion cover and the end face of the end face backer are neat It is flat.

6. bearing seal groove depth detector according to claim 1, it is characterised in that the dial gauge (3) replaces with thousand Divide table.

7. a kind of application method of bearing seal groove depth detector as described in claim 1, it is characterised in that in use, first The end face backer (201) is resisted by one piece of dressing plate, makes the end face of measuring head (301) and end face backer (201) End face, and dial gauge (3) is adjusted to zero-bit；Next the seal groove (401) of bearing outer ring to be measured (4) is directly sleeved on The measuring head of dial gauge protrudes into the end of measuring head in the outer ring seal groove of bearing to be measured and offsets with slot bottom, pushes to be measured Bearing makes the cycle surface of bearing to be measured and the end face of the end face backer offset, and measuring head protrudes into bearing outer ring to be measured at this time The amount of protruding into seal groove is depth value, and is shown on dial gauge.

8. a kind of application method of bearing seal groove depth detector as claimed in claim 5, it is characterised in that when axis to be measured When outer ring (4) aperture held is greater than the end outer diameter of the dial gauge (3) measuring head (301), according to the outer ring of bearing to be measured (401) end face diameter selects corresponding standard set (6), meanwhile, according to the aperture selection corresponding number of standard set or the mark of size Standard cushion cover is sheathed on end face backer (201) outside by quasi- cushion cover (7), and standard set is sheathed on outside standard cushion cover, then will The standard end (5) corresponding to the bearing outer ring sealing groove deep and outer diameter to be measured is threaded io the survey of the dial gauge Measure head end head, the above setting completed before the detection of bearing seal slot；When detection, the mark is resisted by one piece of dressing plate Quasi- set end face makes the end face of standard end and the end face of standard set, and adjusts the dial gauge to zero-bit；It next will be to The seal groove for surveying bearing outer ring is directly sleeved on the standard end, protrudes into standard end in bearing outer ring seal groove to be measured simultaneously It offsets with slot bottom, pushes bearing to be measured, the end face for covering the cycle surface of bearing to be measured with the standard offsets, at this time normal end The amount of protruding into that head protrudes into bearing outer ring seal groove to be measured is depth value, and is shown on dial gauge.