Zero-clearance height measuring device for tapered roller bearing

Abstract

The utility model relates to the technical field of bearing measurement, in particular to a zero-clearance height measuring device for a tapered roller bearing. A limiting plate is arranged between the vertical shaft and an inner ring of the bearing; a pressing plate is arranged at the top of the bearing; the edge of the pressing plate is in contact with an outer ring of the bearing; a groove is formed in the inner side of the pressing plate and is not in contact with the inner ring of the bearing; the nut is screwed down and reaches a certain pressure until the inner ring and the outer ring of the bearing cannot move relatively, namely, the clearance of the tapered roller bearing is zero, the height A between the outer ring of the bearing and the bottom plate is measured through a depth gauge, three positions are measured respectively, the average number is obtained, and the zero clearance height value of the tapered roller bearing can be obtained. The structure is simple and practical, the cost is low, the operation is simple and fast, the stability is good, the measurement precision is high, and the actual use requirement in the production process is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing measurement technical field especially relates to a tapered roller bearing zero play height measuring device. BACKGROUND

[0002] The tapered roller bearing belongs to a split bearing, the inner and outer rings of the bearing have tapered raceways, the inner ring and a group of tapered rollers form an inner ring assembly with a basket-shaped retainer, the outer ring can be separated from the inner ring assembly, and play occurs between the outer ring and the inner ring when axial load is borne, in order to eliminate the play, the thickness of the spacer ring is currently adjusted, which requires accurate measurement of the zero play height of the bearing to accurately calculate the thickness of the spacer ring and achieve the purpose of eliminating the play.

[0003] To sum up, the above problems in the process of measuring the zero play of the bearing have become a technical problem that needs to be solved in the industry. UTILITY MODEL CONTENTS

[0004] The utility model provides a tapered roller bearing zero play height measuring device to make up for the shortage of prior art, solve the problems of complex structure, high cost, inconvenient operation and low measurement precision of the previous measuring device.

[0005] The utility model provides a tapered roller bearing zero play height measuring device to make up for the shortage of prior art, solve the problems of complex structure, high cost, inconvenient operation and low measurement precision of the previous measuring device.

[0006] A tapered roller bearing zero play height measuring device, including the bottom plate, installing the vertical shaft on the bottom plate, the bearing is placed on the bottom plate through the vertical shaft, the limit board is equipped between the vertical shaft and the inner ring of the bearing, the top of the bearing is equipped with the press plate, the edge of the press plate is in contact with the outer ring of the bearing, the inner side of the press plate is equipped with the recess and is not in contact with the inner ring of the bearing, and the top of the vertical shaft passes through the press plate and is connected with the nut outside the press plate.

[0007] The center of the bottom plate is equipped with the bushing, and the bottom shaft end of the vertical shaft is inserted and mounted in the bushing.

[0008] The limit board is circular, the inner hole of the limit board is in contact with the vertical shaft, and the outer side edge of the limit board is in contact with the inner ring of the bearing.

[0009] The press plate is a triangular plate, and the three corners of the press plate are uniformly pressed on the outer ring of the bearing.

[0010] The nut and the press plate are equipped with the washer.

[0011] The torque of the nut is 60N.m.

[0012] The present invention adopts the above solution and has the following advantages:

[0013] By installing a vertical shaft on a base plate, placing a bearing through the shaft on the base plate, and then placing a limiting plate between the shaft and the inner ring of the bearing to keep them concentric, a pressure plate is placed on top of the bearing, with its edge in contact with the outer ring of the bearing and its inner groove not in contact with the inner ring. Simultaneously, the top of the shaft passes through the pressure plate and connects to a nut, which is then tightened to a certain pressure until no relative movement occurs between the inner and outer rings of the bearing. At this point, the clearance of the tapered roller bearing is zero. The height A between the outer ring of the bearing and the base plate is measured using a depth gauge at three locations, and the average value is calculated to obtain the zero clearance height value of the tapered roller bearing. This measuring device is simple and practical in structure, low in cost, easy and quick to operate, has good stability, and high measurement accuracy, meeting the actual needs of production processes. Attached image description:

[0014] Fig. 1 This is a three-dimensional structural diagram of the present invention.

[0015] Fig. 2 This is a top view of the structure of this utility model.

[0016] Fig. 3 This is a cross-sectional structural diagram of the present invention.

[0017] In the diagram, 1 is the base plate, 2 is the vertical shaft, 3 is the bearing, 4 is the inner ring, 5 is the outer ring, 6 is the limiting plate, 7 is the pressure plate, 8 is the groove, 9 is the nut, 10 is the insertion hole, and 11 is the washer. Detailed implementation method:

[0018] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0019] like Figs. 1-3 As shown, a tapered roller bearing zero clearance height measuring device includes a base plate 1, a vertical shaft 2 mounted on the base plate 1, a bearing 3 passing through the vertical shaft 2 and placed on the base plate 1, a limiting plate 6 between the vertical shaft 2 and the inner ring 4 of the bearing 3, a pressure plate 7 on the top of the bearing 3, the edge of the pressure plate 7 contacting the outer ring 5 of the bearing 3, a groove 8 on the inner side of the pressure plate 7 not contacting the inner ring 4 of the bearing 3, and the top of the vertical shaft 2 passing through the pressure plate 7 and extending to the outside of the pressure plate to connect with a nut 9.

[0020] The base plate 1 has a socket 10 at its center. The outer diameter of the bottom shaft end of the vertical shaft 2 is smaller than the outer diameter of the shaft body. The bottom shaft end of the vertical shaft 2 is inserted into the socket 10 to achieve the installation and fixation of the vertical shaft 2.

[0021] The limiting plate 6 is circular, the inner hole of the limiting plate 6 is in contact with the shaft body of the vertical shaft 2, the outer side edge of the limiting plate 6 is in contact with the inner ring 4 of the bearing 3, the limiting plate 6 is positioned between the vertical shaft 2 and the inner ring 4 of the bearing 3, so that the bearing 3 and the vertical shaft 2 are kept concentric, and the bearing 3 is prevented from being deviated.

[0022] The pressing plate 7 is a triangular plate, the three corners of the pressing plate 7 are uniformly pressed on the outer ring 5 of the bearing 3, so that the outer ring 5 is uniformly pressed, and other positions of the outer ring 5 are exposed, thereby facilitating subsequent measurement work.

[0023] The gasket 11 is arranged between the nut 9 and the pressing plate 7.

[0024] The torque of the nut 9 is 60 N.m, the outer ring 5 of the bearing 3 is pressed by the pressing plate 7, and the inner ring 4 and the outer ring 5 of the bearing 3 cannot be relatively moved to reach a zero play state.

[0025] Working principle:

[0026] In use, first, the vertical shaft 2 is installed on the base plate 1, then the bearing 3 is placed on the base plate 1 through the vertical shaft 2, then the limiting plate 6 is positioned between the vertical shaft 2 and the inner ring 4 of the bearing 3, so that the bearing 3 and the vertical shaft 2 are kept concentric, then the pressing plate 7 is placed on the top of the bearing 3, so that the edge of the pressing plate 7 is in contact with the outer ring 5 of the bearing 3, at the same time, the top of the vertical shaft 2 passes through the pressing plate 7 and is connected with the nut 9, then the nut 9 is tightened and reaches a certain pressure, the outer ring 5 is pressed by the nut 9 through the pressing plate 7, until the inner ring 4 and the outer ring 5 of the bearing 3 cannot be relatively moved, that is, the play of the tapered roller bearing is zero, at this time, the height A between the outer ring 5 of the bearing 3 and the base plate 1 is measured by a depth gauge, three positions are measured respectively, and the average value is obtained, so that the zero play height value of the tapered roller bearing is obtained, finally, the thickness of the spacer ring is accurately processed according to the zero play height value of the bearing, so that the play is eliminated.

[0027] The above specific embodiment cannot be regarded as a limitation on the protection scope of the utility model, and any alternative improvement or change made by the person skilled in the art to the embodiment of the utility model falls within the protection scope of the utility model.

[0028] The not detailed parts of the utility model are the known technology of the person skilled in the art.

Claims

1. A zero play height measuring device for a tapered roller bearing, characterized by: The application relates to a vertical shaft bearing device, which comprises a bottom plate, a vertical shaft installed on the bottom plate, a bearing placed on the bottom plate through the vertical shaft, a limiting plate arranged between the vertical shaft and the inner ring of the bearing, a pressing plate arranged on the top of the bearing, the edge of the pressing plate being in contact with the outer ring of the bearing, a recess being arranged on the inner side of the pressing plate and not in contact with the inner ring of the bearing, the top of the vertical shaft extending through the pressing plate to the outer side of the pressing plate and being connected with a nut.

2. A zero play height measuring device for a tapered roller bearing according to claim 1, characterized in that: The center of the bottom plate is provided with a socket, and the bottom shaft end of the vertical shaft is inserted into the socket.

3. A zero play height measuring device for a tapered roller bearing according to claim 1, wherein: The limiting plate is a circular ring, the inner hole of the limiting plate is in contact with the vertical shaft, and the outer side edge of the limiting plate is in contact with the inner ring of the bearing.

4. A zero play height measuring device for a tapered roller bearing according to claim 1, wherein: The pressing plate is a triangular plate, and the three corners of the pressing plate are uniformly pressed on the outer ring of the bearing.

5. A zero play height measuring device for a tapered roller bearing according to claim 1, wherein: A gasket is arranged between the nut and the pressing plate.

6. A zero play height measuring device for a tapered roller bearing according to claim 1, wherein: The torque of the nut is 60 N.m.

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