Bearing height detection device

Abstract

The present disclosure provides a bearing height detection device having a positioning surface for positioning an end surface of a first end of an axial direction of a bearing to be measured, comprising: a mounting portion; a driving device configured to be drivingly connected with the bearing to be measured to drive the bearing to be measured to rotate; a loading device movably arranged on the mounting portion in a direction perpendicular to the positioning surface and having an abutting surface, configured to abut the abutting surface against a second end of the axial direction of the bearing to be measured in a state that the bearing to be measured rotates, and apply an axial load to the bearing to be measured through the abutting surface; and a measuring device configured to obtain a distance between the abutting surface and the positioning surface in the direction perpendicular to the positioning surface in a state that the bearing to be measured rotates, to obtain bearing height information of the bearing to be measured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of bearing detection, and in particular to a bearing height detection device. BACKGROUND

[0002] Bearing height is one of the important detection items of finished bearings, which directly affects the assembly performance of the bearing, and further affects the use performance of the shafting and the product.

[0003] In the related art known to the inventors, the bearing height detection device is only suitable for the detection of specific types or specifications of bearings, has poor universality, small applicable range, and the collected detection data cannot represent the real situation of the bearing circumference. Some bearing height detection devices are only suitable for determining whether the bearing height is qualified or not, and cannot quantitatively detect the height of the bearing to be measured. SUMMARY

[0004] The purpose of the present disclosure is to provide a bearing height detection device which can realize quantitative detection and has a wide applicable range.

[0005] The first aspect of the present disclosure provides a bearing height detection device having a positioning surface for positioning an end surface of a first end of an axial direction of a bearing to be measured, the bearing height detection device comprising:

[0006] a mounting portion;

[0007] a driving device configured to be drivingly connected with the bearing to be measured to drive the bearing to be measured to rotate;

[0008] a loading device movably arranged on the mounting portion in a direction perpendicular to the positioning surface and having an abutting surface, configured to abut the abutting surface against a second end of the axial direction of the bearing to be measured in a state that the bearing to be measured rotates, and to apply an axial load to the bearing to be measured through the abutting surface; and

[0009] a measuring device configured to obtain a distance between the abutting surface and the positioning surface in a direction perpendicular to the positioning surface in a state that the bearing to be measured rotates, to obtain bearing height information of the bearing to be measured.

[0010] According to some embodiments of the present disclosure, the loading device comprises:

[0011] a load source configured to provide the axial load; and

[0012] an abutting portion, the abutting surface being arranged on the abutting portion.

[0013] According to some embodiments of the present disclosure,

[0014] the positioning surface is a horizontal surface, and the loading device is movably arranged on the mounting portion in a vertical direction.

[0015] The load source includes a plurality of weights of different weights selectively arranged on the loading device, and the axial load is derived from the gravity of the weights.

[0016] According to some embodiments of the present disclosure, the abutting portion includes:

[0017] a compression disc, the abutting surface being an axial end surface of the compression disc; and

[0018] a guide shaft including a guide shaft body and a placement portion, a first end of the guide shaft body being connected to the compression disc, the placement portion being arranged at a second end of the guide shaft body and configured to place the weights.

[0019] According to some embodiments of the present disclosure, the abutting portion includes a plurality of compression discs of different diameters selectively connected to the guide shaft.

[0020] According to some embodiments of the present disclosure, the measuring device includes a dial gauge connected to the loading device so as to enable the dial gauge to move with the loading device relative to the mounting portion in a direction perpendicular to the positioning surface.

[0021] According to some embodiments of the present disclosure, the measuring device includes:

[0022] a measuring mechanism support, the dial gauge being arranged at a first end of the length direction of the measuring mechanism support and connected to the loading device through the measuring mechanism support;

[0023] a resilient member, a first end of the resilient member being connected to a second end of the length direction of the measuring mechanism support; and

[0024] a lever rotatably arranged on the measuring mechanism support in a direction perpendicular to an axis of a probe of the dial gauge, a first end of the lever abutting against the probe of the dial gauge, a second end of the lever being connected to a second end of the resilient member and abutting against the mounting portion.

[0025] According to some embodiments of the present disclosure, the measuring device further includes a protrusion arranged at a bottom of the second end of the lever, the protrusion being coaxially arranged with the resilient member, the second end of the lever abutting against the mounting portion through the protrusion.

[0026] According to some embodiments of the present disclosure, a distance from the rotation axis of the lever to both ends of the lever is the same.

[0027] According to some embodiments of the present disclosure, the measuring device further comprises a first position adjusting part disposed on the loading device and adjustable in position along a direction perpendicular to the positioning surface, the first position adjusting part is connected with the dial gauge and configured to adjust the position of the dial gauge on the loading device to adjust the position of the measuring head of the dial gauge relative to the mounting part.

[0028] According to some embodiments of the present disclosure, the first position adjusting part comprises:

[0029] a first sliding block disposed on the loading device, the loading device comprising a guide shaft, the first sliding block being provided with a sliding block mounting hole and an opening extending from the sliding block mounting hole to an edge of the first sliding block, the sliding block mounting hole being in sliding fit with the guide shaft, the first sliding block comprising a first pressing part and a second pressing part disposed on two sides of the opening in a width direction of the opening, respectively; and

[0030] a locking handle disposed on the first sliding block, the locking handle comprising a handle body and a threaded rod, one end of the handle body forming a cam abutting on the first pressing part, the first end of the threaded rod being hinged with the cam through the first pressing part, the second end of the threaded rod being in threaded connection with the second pressing part through the opening in the width direction of the opening;

[0031] wherein the first position adjusting part has a first locked state and a first unlocked state, the first position adjusting part switches between the first locked state and the first unlocked state by rotating the handle body relative to the threaded rod to adjust the distance between the axis of the cam and the axis of the opening, in the first locked state, the cam presses the first pressing part in the width direction of the opening to lock the first sliding block on the loading device, in the first unlocked state, the cam releases the first pressing part to enable the first sliding block to move relative to the loading device in a direction perpendicular to the positioning surface.

[0032] According to some embodiments of the present disclosure, the mounting part comprises:

[0033] a loading device support; and

[0034] a second position adjusting part disposed on the loading device support and adjustable in position along a direction perpendicular to the positioning surface, the second end of the lever abutting on the second position adjusting part, the bearing height detection device being configured to adjust the position of the second position adjusting part on the loading device support to adjust the position of the second position adjusting part relative to the second end of the lever.

[0035] According to some embodiments of the present disclosure, the second position adjusting part comprises a second sliding block and a locking screw, the second position adjusting part has a second locked state and a second unlocked state, in the second locked state, the locking screw fixes the second sliding block on the loading device support, in the second unlocked state, the second sliding block can move relative to the loading device support in a direction perpendicular to the positioning surface.

[0036] According to some embodiments of the present disclosure, the driving device comprises a power source and a transmission mechanism, the power source is configured to provide power for rotating the bearing to be tested, the transmission mechanism comprises a first transmission shaft, the first transmission shaft is drivingly connected with the power source and is configured to be drivingly connected with the bearing to be tested, and the positioning surface is located on the first transmission shaft.

[0037] According to some embodiments of the present disclosure, the transmission mechanism further comprises a second transmission shaft, a first bevel gear and a second bevel gear which are mutually engaged, a first end of the first transmission shaft is connected with the first bevel gear, a second end of the first transmission shaft is configured to be drivingly connected with the bearing to be tested, a first end of the second transmission shaft is drivingly connected with the power source, and a second end of the second transmission shaft is connected with the second bevel gear.

[0038] According to some embodiments of the present disclosure, the transmission mechanism further comprises a mandrel and an elastic ring, the mandrel is arranged at the second end of the first transmission shaft and is configured to position a circumferential surface of the bearing to be tested, and the elastic ring is arranged radially outside the mandrel and is configured to cooperate with the bearing to be tested to transmit the power provided by the power source to the bearing to be tested.

[0039] According to some embodiments of the present disclosure, the mounting part comprises a base, and the transmission mechanism further comprises a mounting bearing arranged radially outside the first transmission shaft, the first transmission shaft is supported on the base through the mounting bearing, and the mounting bearing is configured to position an axial surface of the first transmission shaft.

[0040] According to some embodiments of the present disclosure, a control device is further included, the control device is signal-connected with the measuring device, and the control device is configured to acquire the bearing height information according to a change of a distance between the abutting surface and the positioning surface in a direction perpendicular to the positioning surface under a rotating state of the bearing to be tested, with a standard bearing height of a standard sample of the same type of bearing as the bearing to be tested as a reference.

[0041] In the bearing height detection device provided in this embodiment, the loading device can apply an axial load along the direction perpendicular to the positioning surface, i.e., the axial direction of the bearing to be tested. When the driving device drives the bearing to be tested to rotate, the loading device abutting against the axial end face of the bearing to be tested moves along the perpendicular to the positioning surface as the bearing height of the bearing to be tested changes. The measuring device can directly or indirectly obtain the bearing height information based on the amount of movement of the abutting surface on the loading device, thereby realizing the functions of center axial load loading, bearing rotation and bearing height detection.

[0042] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0043] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:

[0044] Figure 1 This is a schematic diagram of the structure of a bearing height detection device according to some embodiments of the present disclosure.

[0045] Figure 2 for Figure 1 The diagram shows the main structural view of the bearing height detection device.

[0046] Figure 3 for Figure 1 The diagram shows a side view of the bearing height detection device.

[0047] Figure 4 for Figure 1 The diagram shows the structural design of the support frame for the bearing height detection device.

[0048] Figure 5 for Figure 1 The diagram shows the structure of the guide shaft of the bearing height detection device.

[0049] Figure 6 for Figure 1 The diagram shows the structural structure of the measuring device for the bearing height detection device.

[0050] Figure 7 for Figure 1 The diagram shows a side view of the measuring device of the bearing height detection device.

[0051] Figure 8 for Figure 1 The diagram shows the structure of the drive unit of the bearing height detection device.

[0052] Figure 9 for Figure 1The sectional structure diagram of the driving device of the bearing height detection device.

[0053] Figure 10 For Figure 1 The structure diagram of the first transmission shaft of the bearing height detection device.

[0054] Figure 11 For Figure 1 The base structure diagram of the bearing height detection device.

[0055] Figures 1 to 11 In the drawings, the reference numerals represent respectively:

[0056] 1, weight;

[0057] 2, loading device support; 2-1, first guide shaft hole; 2-2, first guide groove; 2-3, second guide shaft hole; 2-4, second guide groove;

[0058] 3, measuring device; 3-1, dial gauge; 3-2, measuring mechanism support; 3-3, lever; 3-4, lever support; 3-5, cylindrical pin; 3-6, spring; 3-7, locking handle; 3-7-1, handle body; 3-7-2, threaded rod; 3-8, first sliding block; 3-8-1, first pressing part; 3-8-2, second pressing part; 3-8-3, sliding block mounting hole; 3-9, third sliding block; 3-10, protrusion; C, cam; G, opening;

[0059] 4, guide shaft; 4-1, cylindrical rod; 4-2, placement part; 4-3, guide shaft body; 4-4, threaded head;

[0060] 5, second sliding block;

[0061] 6, locking screw;

[0062] 7, pressure plate;

[0063] 8, driving device; 8-1, first transmission shaft; 8-1-1, threaded section; 8-1-2, positioning section; 8-1-3, matching section; 8-1-4, key groove; 8-1-5, stop ring groove; 8-2, mandrel; 8-3, elastic ring; 8-5, mounting bearing; 8-6, first connecting key; 8-7, first bevel gear; 8-8, first stop ring; 8-9, second bevel gear; 8-10, second stop ring; 8-11, second connecting key; 8-12, second transmission shaft; 8-13, power source;

[0064] 9, base; 9-1, mounting bearing mounting hole; 9-2, motor mounting hole;

[0065] 10, start button;

[0066] 11, stop button;

[0067] 12. Control device;

[0068] B, bearing to be measured. DETAILED DESCRIPTION

[0069] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and not intended to be limiting on the disclosure and its applications or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present disclosure.

[0070] The relative arrangement, numerical expressions and values of the components and steps set forth in the embodiments are not intended to limit the scope of the present disclosure, unless otherwise specifically stated. Meanwhile, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the convenience of description. The techniques, methods and devices known to those of ordinary skill in the related art can not be discussed in detail, but should be considered as part of the authorized description, if appropriate. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0071] In the description of the present disclosure, it should be understood that the use of the words "first", "second" and the like to qualify elements is merely for the convenience of distinguishing the corresponding elements, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0072] In the description of the present disclosure, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and in the absence of the opposite indication, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0073] Reference Figures 1 to 11Some embodiments of the present disclosure provide a bearing height detection device.

[0074] The bearing height detection device has a positioning surface for positioning an end surface of a first end of the bearing B in the axial direction. The bearing height detection device comprises a mounting portion, a driving device 8, a loading device, and a measuring device 3.

[0075] The driving device 8 is configured to be drivingly connected with the bearing B to be detected, so as to drive the bearing B to be detected to rotate.

[0076] The loading device is movably arranged on the mounting portion in a direction perpendicular to the positioning surface and has an abutting surface, and is configured to abut the abutting surface against a second end of the bearing B to be detected in the axial direction in a state where the bearing B to be detected rotates, and to apply an axial load to the bearing B to be detected through the abutting surface.

[0077] The measuring device 3 is configured to obtain a distance between the abutting surface and the positioning surface in the direction perpendicular to the positioning surface in a state where the bearing B to be detected rotates, so as to obtain bearing height information of the bearing B to be detected.

[0078] In order to facilitate the arrangement of the positioning surface, the driving device, and the loading device, reference is made to Figures 1 to 4 In some embodiments, the mounting portion can comprise a base 9 and a loading device support 2, wherein the driving device 8 can be arranged on the base 9, the loading device support 2 can be arranged on the base 9 in a direction perpendicular to the positioning surface, and the measuring device 3 can be arranged on the loading device. The base 9 serves to support and connect the driving device 8 and the loading device support 2, so as to keep the measuring device 3 arranged on the loading device stable.

[0079] The bearing height information described above can include a bearing height of the bearing to be detected, a maximum value and a minimum value of the bearing height, a variation of the bearing height, etc.

[0080] In the bearing height detection device provided by the embodiments of the present disclosure, the loading device can apply an axial load in a direction perpendicular to the positioning surface, i.e., in the axial direction of the bearing to be detected. When the driving device drives the bearing to be detected to rotate, the loading device abutting against the end surface in the axial direction of the bearing to be detected moves in a direction perpendicular to the positioning surface along with the change of the bearing height of the bearing to be detected. The measuring device can directly or indirectly obtain the bearing height information according to the movement of the abutting surface on the loading device, so as to realize the functions of central axial load loading, bearing rotation, and bearing height detection, etc.

[0081] In some embodiments, the loading device comprises a load source and an abutting portion. The load source is configured to provide an axial load. The abutting surface is arranged on the abutting portion.

[0082] The load source can provide an axial load in the form of gravity loading, electric loading, or hydraulic loading, etc.

[0083] Reference Figure 1 In some embodiments, the positioning surface is a horizontal surface, and the loading device is movably arranged on the mounting portion in a vertical direction. The load source includes a plurality of weights 1 of different weights that are selectively arranged on the loading device, and the axial load is derived from the gravity of the weights 1.

[0084] In some embodiments not shown in the figures, the positioning surface is not limited to a horizontal surface, as long as the load source is capable of applying an axial load to the bearing B via the abutting portion.

[0085] In some embodiments, the abutting portion includes a press plate 7 and a guide shaft 4. The abutting surface is an axial end surface of the press plate 7. The guide shaft 4 includes a guide shaft body 4-3 and a placement portion 4-2, the first end of the guide shaft body 4-3 is connected to the press plate 7, and the placement portion 4-2 is arranged at the second end of the guide shaft body 4-3 and is configured to place the weights 1.

[0086] Figures 1 to 5 In the embodiments shown, the guide shaft 4 is movably arranged on the loading device support 2 of the mounting portion in a vertical direction. The loading device support 2 includes a vertical plate and two horizontal plates arranged on the vertical plate in an up-down direction, and coaxial first guide shaft holes 2-1 and second guide shaft holes 2-3 are arranged on the two horizontal plates, respectively. The guide shaft 4 passes through the first guide shaft holes 2-1 and the second guide shaft holes 2-3 and is in clearance fit with the first guide shaft holes 2-1 and the second guide shaft holes 2-3, so as to support and guide the guide shaft 4. The guide shaft 4 further includes a cylindrical rod 4-1 arranged on the placement portion 4-2 and a threaded head 4-4 arranged at the first end of the guide shaft body 4-3. The cylindrical rod 4-1 is used to lift or lower the guide shaft body 4-3, the weights 1 have a circular hole matched with the cylindrical rod 4-1, and the bottom of the weights 1 is in contact with the top surface of the placement portion 4-2. The press plate 7 is threadedly connected with the threaded head 4-4. According to the axial load required by the bearing B to be measured, weights of corresponding weights can be placed on the placement portion 4-2.

[0087] By arranging the guide shaft 4 and the press plate 7, the axial load applied by the weights 1 can be uniformly applied to the axial end surface of the bearing B to be measured through the axial end surface of the press plate 7, thereby improving the measurement accuracy.

[0088] In order to adapt to the needs of bearing height detection of bearings of different specifications, in some embodiments, the abutting portion includes a plurality of press plates 7 of different diameters that are selectively connected to the guide shaft 4.

[0089] The measuring device 3 can directly or indirectly obtain the bearing height of the bearing to be measured.

[0090] In some embodiments, the measuring device 3 can include a displacement sensor for measuring the distance between the abutting surface and the positioning surface, and the distance between the abutting surface and the positioning surface is the bearing height of the bearing B to be measured.

[0091] In some embodiments, the measuring device 3 comprises a dial gauge 3-1 connected to the loading device so that the dial gauge 3-1 can move with the loading device relative to the mounting portion along a direction perpendicular to the positioning surface.

[0092] In the above embodiments, the dial gauge 3-1 can move with the loading device relative to the mounting portion along a direction perpendicular to the positioning surface, and the bearing height detection device can directly abut the measuring head of the dial gauge 3-1 against the loading device support 2 of the mounting portion or against other components in contact with the loading device support 2, so that, with the bearing height of the standard sample of the same specification bearing as the reference, the change in the reading of the dial gauge 3-1 can be obtained as the bearing B to be measured rotates, and the movement of the loading device relative to the positioning surface along a direction perpendicular to the positioning surface, i.e. the change in the bearing height of the bearing B to be measured, can be obtained, and thus the bearing height of the bearing B to be measured and other bearing height information can be further obtained.

[0093] Reference Figure 6 and Figure 7 In some embodiments, the measuring device 3 comprises a measuring mechanism support 3-2, a spring 3-6 and a lever 3-3. The dial gauge 3-1 is arranged at a first end of the length direction of the measuring mechanism support 3-2 and connected to the loading device through the measuring mechanism support 3-2. A first end of the spring 3-6 is connected to a second end of the length direction of the measuring mechanism support 3-2. The lever 3-3 is rotatably arranged on the measuring mechanism support 3-2 along a direction perpendicular to the axis of the measuring head of the dial gauge 3-1, the measuring head of the dial gauge 3-1 abuts against a first end of the lever 3-3, and a second end of the lever 3-3 is connected to a second end of the spring 3-6 and abuts against the mounting portion.

[0094] Figure 6 and Figure 7 In the embodiments shown, the measuring device 3 further comprises a lever support 3-4 and a cylindrical pin 3-5, the lever support 3-4 is provided with a circular hole with an axis along a direction perpendicular to the axis of the measuring head of the dial gauge 3-1 at one end close to the lever 3-3, and the lever 3-3 is provided with a corresponding circular hole with an axis along a direction perpendicular to the axis of the measuring head of the dial gauge 3-1. The cylindrical pin 3-5 is in clearance fit with the circular hole of the lever 3-3 and in interference fit with the circular hole of the lever support 3-4, so that the lever 3-3 can rotate relative to the lever support 3-4 along a direction perpendicular to the axis of the measuring head of the dial gauge 3-1.

[0095] In order to make the dial gauge 3-1 move more smoothly with the loading device along a direction perpendicular to the positioning surface, and thus make the measurement results of the measuring device 3 more accurate, Figure 6 and Figure 7In the shown embodiment, the measuring device 3 further comprises a third sliding block 3-9, the dial gauge 3-1 is connected with the third sliding block 3-9 through the measuring mechanism support 3-2, and the first guide groove 2-2 in sliding fit with the third sliding block 3-9 and extending along the direction perpendicular to the positioning surface is arranged on the loading device support 2. The third sliding block 3-9 can be a trapezoidal sliding block.

[0096] With reference to Figure 6 and Figure 7 In some embodiments, the measuring device 3 further comprises a protrusion 3-10 arranged at the bottom of the second end of the lever 3-3, the protrusion 3-10 is coaxially arranged with the spring 3-6, and the second end of the lever 3-3 is abutted to the mounting portion through the protrusion 3-10.

[0097] In order to reduce the wear between the protrusion 3-10 and the mounting portion during the measurement, thereby reducing the wear between the lever 3-3 and the measuring head of the dial gauge 3-1, and further improving the measurement accuracy, the protrusion 3-10 can be a sphere made of hard alloy.

[0098] With reference to Figure 6 and Figure 7 In some embodiments, the distance from the rotating axis of the lever 3-3 to the two ends of the lever 3-3 is the same.

[0099] In the above embodiment, the lever 3-3 is an equal-arm lever, and in the rotating state of the bearing B to be measured, the change amount of the bearing height of the bearing B to be measured is the movement amount of the second end of the lever 3-3, the movement amount of the second end of the lever 3-3 is equal to the movement amount of the first end of the lever 3-3, that is, equal to the expansion and contraction amount of the measuring head of the dial gauge 3-1, which is beneficial to simplify the processing process of the measurement data and improve the measurement accuracy.

[0100] In order to meet the detection requirements of bearings B to be measured of different specifications, in some embodiments, the measuring device 3 further comprises a first position adjusting portion, the first position adjusting portion is arranged on the loading device and is adjustable in the direction perpendicular to the positioning surface, the first position adjusting portion is connected with the dial gauge 3-1 and is configured to adjust the position of the dial gauge 3-1 on the loading device, so as to adjust the position of the measuring head of the dial gauge 3-1 relative to the mounting portion.

[0101] With reference to Figure 6 and Figure 7 In some embodiments, the first position adjusting portion comprises a first sliding block 3-8 and a locking handle 3-7.

[0102] The first slider 3-8 is arranged on the loading device, the loading device comprises a guide shaft 4, the first slider 3-8 is provided with a slider mounting hole 3-8-3 and an opening G extending from the slider mounting hole 3-8-3 to the edge of the first slider 3-8, the slider mounting hole 3-8-3 is in sliding fit with the guide shaft 4, and the first slider 3-8 comprises a first pressing part 3-8-1 and a second pressing part 3-8-2 arranged on both sides of the opening G in the width direction of the opening G respectively.

[0103] The locking handle 3-7 is arranged on the first slider 3-8, the locking handle 3-7 comprises a handle body 3-7-1 and a threaded rod 3-7-2, one end of the handle body 3-7-1 forms a cam C abutting on the first pressing part 3-8-1, the first end of the threaded rod 3-7-2 is hinged with the cam C through the first pressing part 3-8-1, and the second end of the threaded rod 3-7-2 is threadedly connected with the second pressing part 3-8-2 through the opening G in the width direction of the opening G.

[0104] The first position adjusting part has a first locking state and a first unlocking state, the first position adjusting part adjusts the distance between the axis of the cam C and the axis of the opening G by rotating the handle body 3-7-1 relative to the threaded rod 3-7-2, so as to switch the first position adjusting part between the first locking state and the first unlocking state, in the first locking state, the cam C presses the first pressing part 3-8-1 in the width direction of the opening G, so as to lock the first slider 3-8 on the loading device, and in the first unlocking state, the cam C releases the first pressing part 3-8-1, so as to enable the first slider 3-8 to move relative to the loading device in the direction perpendicular to the positioning surface.

[0105] In the above embodiment, by rotating the handle body 3-7-1, the first slider 3-8 can be locked or released from the guide shaft 4, so that the measuring device 3 as a whole is locked on the loading device or released from the loading device to adjust the position of the measuring device 3 on the loading device according to the specification of the bearing B to be measured.

[0106] In some embodiments, the mounting part comprises a loading device support 2 and a second position adjusting part, the second position adjusting part is arranged on the loading device support 2 and is adjustable in the direction perpendicular to the positioning surface, the second end of the lever 3-3 abuts on the second position adjusting part, and the bearing height detection device is configured to adjust the position of the second position adjusting part on the loading device support 2, so as to adjust the position of the second position adjusting part relative to the second end of the lever 3-3.

[0107] Reference Figures 1 to 3In some embodiments, the second position adjusting part includes a second sliding block 5 and a locking screw 6. The second position adjusting part has a second locked state and a second unlocked state. In the second locked state, the locking screw 6 fixes the second sliding block 5 on the loading device support 2. In the second unlocked state, the second sliding block 5 can move relative to the loading device support 2 in a direction perpendicular to the positioning surface.

[0108] Figures 1 to 3 In the illustrated embodiment, the loading device support 2 is provided with a second guide groove 2-4 extending in a direction perpendicular to the positioning surface, and the second sliding block 5 is in sliding cooperation with the second guide groove 2-4. In the direction perpendicular to the positioning surface, a plurality of threaded holes can be provided side by side on the second sliding block 5. By threadedly cooperating the locking screw 6 with the second sliding block 5 and allowing the end of the locking screw 6 to abut against the bottom surface of the second guide groove 2-4, the second sliding block 5 can be fixed on the loading device support 2. In the detection of the bearing height, the second end of the lever 3-3 abuts against the top end of the second sliding block 5 through the protrusion 3-10. In order to reduce the wear between the protrusion 3-10 and the second sliding block 5 during the measurement, the second sliding block 5 can also be made of hard alloy.

[0109] When detecting the bearing height of the bearing B of different specifications, the position of the dial gauge 3-1 on the loading device or the position of the second position adjusting part on the loading device support 2 can be adjusted according to the difference in the bearing height of the bearing B in two measurements, which has a wide range of applications.

[0110] In some embodiments, the driving device 8 includes a power source 8-13 configured to provide power for rotating the bearing B, and a transmission mechanism including a first transmission shaft 8-1 drivingly connected with the power source 8-13 and configured to be drivingly connected with the bearing B, and the positioning surface is located on the first transmission shaft 8-1.

[0111] The power source 8-13 can be an electric motor or other power device capable of providing torque to the first transmission shaft 8-1 to rotate the bearing B. The first transmission shaft 8-1 can be a stepped shaft, and the positioning surface can be a stepped surface of the stepped shaft. For example, the first transmission shaft 8-1 has a positioning section 8-1-2, and the positioning surface can be the upper end surface of the positioning section 8-1-2.

[0112] Figures 1 to 3 In the illustrated embodiment, the bearing height detection device can further include a start button 10 and a stop button 11, which are signal connected with the power source 8-13 and are respectively used for controlling the start and stop of the power source 8-13.

[0113] Reference Figures 8 to 11In some embodiments, the transmission mechanism further comprises a second transmission shaft 8-12, a first bevel gear 8-7 and a second bevel gear 8-9 engaged with each other, a first end of the first transmission shaft 8-1 is connected with the first bevel gear 8-7, a second end of the first transmission shaft 8-1 is configured to be drivingly connected with the bearing B to be measured, a first end of the second transmission shaft 8-12 is drivingly connected with the power source 8-13, and a second end of the second transmission shaft 8-12 is connected with the second bevel gear 8-9.

[0114] Figures 8 to 11 In the illustrated embodiments, the transmission mechanism further comprises a first connecting key 8-6, a first retaining ring 8-8, a second connecting key 8-11 and a second retaining ring 8-10. As shown in Figure 9 and Figure 10 the first connecting key 8-6 is arranged in a key groove 8-1-4 at the first end of the first transmission shaft 8-1, the first transmission shaft 8-1 and the first bevel gear 8-7 are connected through the first connecting key 8-6, the first retaining ring 8-8 is arranged in a retaining ring groove 8-1-5 at the first end of the first transmission shaft 8-1, and the second transmission shaft 8-12 and the second bevel gear 8-9 are connected through the second connecting key 8-11. The first retaining ring 8-8 and the second retaining ring 8-10 are respectively used to prevent the first bevel gear 8-7 and the second bevel gear 8-9 from axially moving, so as to improve the measurement accuracy. The power output by the power source 8-13 is transmitted to the bearing B to be measured through the second transmission shaft 8-12, the second bevel gear 8-9, the first bevel gear 8-7 and the first transmission shaft 8-1 in sequence.

[0115] Referring to Figures 8 to 11 In some embodiments, the transmission mechanism further comprises a mandrel 8-2 and an elastic ring 8-3, the mandrel 8-2 is arranged at the second end of the first transmission shaft 8-1 and is configured to position a circumferential surface of the bearing B to be measured, and the elastic ring 8-3 is sleeved on the radial outer side of the mandrel 8-2 and is configured to cooperate with the bearing B to be measured to transmit the power provided by the power source 8-13 to the bearing B to be measured.

[0116] The transmission mechanism can include a plurality of mandrels 8-2 and elastic rings 8-3 which are selectively arranged on the first transmission shaft 8-1. For example, the mandrel 8-2 can be threadedly connected with the first transmission shaft 8-1 through the threaded segment 8-1-1 arranged at the second end of the first transmission shaft 8-1, and abut against the upper end face of the positioning segment 8-1-2. According to the specifications of the bearing B to be measured, mandrels 8-2 and elastic rings 8-3 of different sizes can be selected and installed on the first transmission shaft 8-1. The axial dimension of the mandrel 8-2 should be smaller than the axial dimension of the bearing B to be measured, and the upper end face of the mounting segment 8-1-2 can support the mandrel 8-2 and position the first end of the bearing B to be measured in the axial direction. The elastic ring 8-3 sleeved on the mandrel 8-2 can tightly press the inner ring of the bearing B to be measured, which not only enables the first transmission shaft 8-1 to reliably transmit power to the bearing B to be measured, but also protects the inner ring of the bearing B to be measured.

[0117] Reference Figures 1 to 3 and Figures 8 to 11 In some embodiments, the mounting portion includes a base 9, and the transmission mechanism further includes a mounting bearing 8-5 arranged on the radial outer side of the first transmission shaft 8-1, the first transmission shaft 8-1 being supported on the base 9 by the mounting bearing 8-5, and the mounting bearing 8-5 being configured to position the axial surface of the first transmission shaft 8-1.

[0118] The mounting bearing 8-5 can be a tapered roller bearing or other support component capable of bearing a certain axial load along the first transmission shaft 8-1. By arranging the mounting bearing 8-5, on the one hand, the first transmission shaft 8-1 can be axially supported, preventing axial movement of the first transmission shaft 8-1 and improving measurement accuracy. On the other hand, the friction between the first transmission shaft 8-1 and the base 9 in the rotating state of the bearing B to be measured can be eliminated.

[0119] Figures 8 to 11 In the illustrated embodiment, the top surface of the base 9 is provided with a mounting bearing mounting hole 9-1, and one side surface of the base 9 is provided with a motor mounting hole 9-2. The circumferential surface of the mounting bearing mounting hole 9-1 is in interference fit with the outer ring of the mounting bearing 8-5, the inner ring of the mounting bearing 8-5 is in interference fit with the matching segment 8-1-3 on the first transmission shaft 8-1, the stepped surface at the end of the matching segment 8-1-3 abuts against the upper end surface of the inner ring of the mounting bearing 8-5, and the bottom surface of the mounting bearing mounting hole 9-1 abuts against the lower end surface of the outer ring of the mounting bearing 8-5. The motor mounting hole 9-2 is in clearance fit with the motor, the flange surface of the motor abuts against the side surface of the base 9 on which the motor mounting hole 9-2 is arranged, and a plurality of evenly distributed threaded holes are arranged around the motor mounting hole 9-2 on the side surface to fix the motor to the base 9 by screws. The end of the output shaft of the motor is provided with a thread and is threadedly connected with the threaded hole arranged at the first end of the second transmission shaft 8-12.

[0120] In some embodiments, the bearing height detection device further comprises a control device 12 connected with the measuring device 3. The control device 12 is configured to obtain the bearing height information according to the change of the distance between the abutting surface and the positioning surface in the direction perpendicular to the positioning surface under the condition that the bearing B to be measured is rotating, with the bearing height of the standard sample of the same bearing model as the bearing B to be measured as the reference.

[0121] In some embodiments, the control device described above can be implemented as a general-purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof, for performing the functions described in the present disclosure.

[0122] Figures 1 to 3 In the illustrated embodiments, the dial gauge 3-1 can be a digital dial gauge, and the control device 12 can be a PC. The digital dial gauge and the PC can be connected through ZigBee technology, Bluetooth technology or the like to realize wireless signal transmission. The PC collects the data transmitted by the digital dial gauge, and performs data analysis and calculation to obtain the bearing height information.

[0123] The following will be described in combination with Figures 1 to 11 The detection method of the bearing height detection device according to some embodiments of the present disclosure will be further described.

[0124] The bearing height detection device comprises a weight 1, a loading device support 2, a measuring device 3, a guide shaft 4, a second sliding block 5, a locking screw 6, a pressure plate 7, a driving device 8, a base 9, a start button 10, a stop button 11 and a control device 12. The specific structure, connection relationship and function of each component can be referred to the foregoing description.

[0125] Step 1: According to the specifications of the bearing B to be measured, select a standard sample of the bearing with the same height and inner diameter and appropriate accessories (including the pressure plate 7, the mandrel 8-2 and the elastic ring 8-3), and install the standard sample and the above-mentioned accessories on the bearing height detection device.

[0126] Step 2: Lift the guide shaft 4, place the standard sample on the positioning section 8-1-2 of the driving device 8 stably, make the axial end surface of the standard sample abut with the upper end surface of the positioning section 8-1-2, and rotate the standard sample manually for one circle.

[0127] Step 3: Lower the guide shaft 4 at a constant speed, and make the pressure plate 7 press on the upper end face of the standard sample. According to the requirement of the axial load, select the corresponding weight 1 and place it on the placing part 4-2.

[0128] When detecting the bearing height of the bearing B of different specifications, if the bearing height difference is small (the height difference < 5 mm), adjust the position of the second sliding block 5 along the vertical direction relative to the loading device support 2 through step 4A; if the bearing height difference is large (the height difference ≥ 5 mm), adjust the position of the measuring device 3 along the vertical direction relative to the guide shaft 4 through step 4B.

[0129] Step 4A: Loosen the locking screw 6, adjust the position of the second sliding block 5 on the second guide groove 2-4 of the loading device support 2, so that the spring 3-6 of the measuring device 3 is always in a compressed state, and the lever 3-3 is nearly horizontal. Then, tighten the locking screw 6, and after the dial gauge 3-1 shows a stable reading, repeat the process of lifting and lowering the guide shaft 4, and adjust the zero position of the dial gauge 3-1.

[0130] Step 4B: Rotate the handle body 3-7-1 to loosen the guide shaft 4, so that the measuring device 3 can move up and down along the guide shaft 4. Adjust the position of the measuring device 3 so that the protrusion 3-10 is in contact with the second sliding block 5, and ensure that the spring 3-6 of the measuring device 3 is always in a compressed state, and the lever 3-3 is nearly horizontal. Then, rotate the handle body 3-7-1 again to lock the measuring device 3 on the guide shaft 4. After the dial gauge 3-1 shows a stable reading, repeat the process of lifting and lowering the guide shaft 4, and adjust the zero position of the dial gauge 3-1.

[0131] Step 5: Lift the guide shaft 4, replace the standard sample with the bearing B to be measured, and press the start button 10 to start the power source 8-13. The motor of the power source 8-13 drives the inner ring of the bearing B to be measured to rotate.

[0132] Step 6: Rotate the inner ring of the bearing B to be measured for several revolutions. Through wireless transmission, the control device 12 collects at least 2 revolutions of measurement data. Uniformly select n measurement data (including the minimum and maximum values of the measurement data) along the circumference of the bearing B to be measured. Calculate the bearing height Ts, the bearing height variation ΔTss, etc. of the bearing B to be measured according to the following formula, and take them as the bearing height information of the bearing B to be measured.

[0133]

[0134] T smax = T b + ΔT bmax

[0135] T smin = T b + ΔT bmin

[0136] Delta T ss = T smax -T smin

[0137] Delta T s = T s -T

[0138] In the formula: Ts is the bearing height of the bearing to be measured, in mm;

[0139] Tsmax is the maximum value of the bearing height of the bearing to be measured, in mm;

[0140] Tsmin is the minimum value of the bearing height of the bearing to be measured, in mm;

[0141] Delta Tss is the bearing height variation of the bearing to be measured, in mm;

[0142] Tb is the bearing height of the standard sample, in mm;

[0143] Delta Tbi is the i-th measurement data, in mm;

[0144] Delta Tbmax is the maximum value of the measurement data, in mm;

[0145] Delta Tbmin is the minimum value of the measurement data, in mm;

[0146] Delta Ts is the bearing height deviation of the bearing to be measured, in mm;

[0147] T is the nominal height of the bearing to be measured, in mm.

[0148] By using the bearing height detection device, all detection requirements of bearings of different specifications can be met by one device, the bearing height and its variation can be quickly and dynamically detected, the size of the axial load and the number of rotations can be adjusted and controlled, and the device has the characteristics of simple structure, convenient operation, high detection precision, and wide application range.

[0149] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present disclosure, but not to limit it; although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present disclosure can be modified or some technical features can be replaced by equivalent ones, which should be covered in the technical solution range of the present disclosure.

Claims

1. A bearing height detection device characterized by, The bearing height detection device comprises: a mounting portion; a driving device (8) configured to be drivingly connected with the bearing to be measured (B) to drive the bearing to be measured (B) to rotate; a loading device movably arranged on the mounting portion in a direction perpendicular to the locating surface and having an abutting surface, configured to abut the abutting surface against a second end of the bearing to be measured (B) in an axial direction in a state that the bearing to be measured (B) rotates, and apply an axial load to the bearing to be measured (B) through the abutting surface; and a measuring device (3) configured to acquire a distance between the abutting surface and the locating surface in a direction perpendicular to the locating surface in a state that the bearing to be measured (B) rotates, to acquire bearing height information of the bearing to be measured (B). The driving device (8) comprises a power source (8-13) configured to provide power for rotating the bearing to be measured (B) and a transmission mechanism, the transmission mechanism comprises a first transmission shaft (8-1) drivingly connected with the power source (8-13) and configured to be drivingly connected with the bearing to be measured (B), and the locating surface is located on the first transmission shaft (8-1). The transmission mechanism further comprises a second transmission shaft (8-12), a first bevel gear (8-7) and a second bevel gear (8-9) meshing with each other, a first end of the first transmission shaft (8-1) is connected with the first bevel gear (8-7), a second end of the first transmission shaft (8-1) is configured to be drivingly connected with the bearing to be measured (B), a first end of the second transmission shaft (8-12) is drivingly connected with the power source (8-13), and a second end of the second transmission shaft (8-12) is connected with the second bevel gear (8-9).

2. The bearing height detection apparatus according to claim 1, characterized by The loading device comprises: a load source configured to provide the axial load; and an abutting portion on which the abutting surface is arranged.

3. The bearing height detection device according to claim 2, wherein the locating surface is a horizontal surface, and the loading device is movably arranged on the mounting portion in a vertical direction; the load source comprises a plurality of weights (1) of different weights arranged on the loading device, and the axial load is derived from the gravity of the weights (1).

4. The bearing height detection apparatus according to claim 3, characterized by The abutting portion comprises: a pressure plate (7), and the abutting surface is an axial end surface of the pressure plate (7); and a guide shaft (4) comprising a guide shaft body (4-3) and a placement portion (4-2), a first end of the guide shaft body (4-3) is connected with the pressure plate (7), and the placement portion (4-2) is arranged at a second end of the guide shaft body (4-3) and configured to place the weights (1).

5. The bearing height detection apparatus according to claim 4, characterized by The abutting portion comprises a plurality of pressure plates (7) of different diameters connected with the guide shaft (4).

6. The bearing height detection apparatus according to claim 1, characterized by The measuring device (3) includes a dial gauge (3-1) connected to the loading device so that the dial gauge (3-1) can move with the loading device relative to the mounting portion in a direction perpendicular to the positioning surface.

7. The bearing height detection apparatus according to claim 6, characterized by The measuring device (3) includes: a measuring mechanism support (3-2) on which the dial gauge (3-1) is disposed at a first end in a length direction of the measuring mechanism support (3-2) and connected to the loading device via the measuring mechanism support (3-2); a spring (3-6) having a first end connected to a second end in the length direction of the measuring mechanism support (3-2); and a lever (3-3) rotatably disposed on the measuring mechanism support (3-2) in a direction perpendicular to an axis of a probe of the dial gauge (3-1), the probe of the dial gauge (3-1) abutting against a first end of the lever (3-3), and a second end of the lever (3-3) connected to a second end of the spring (3-6) and abutting against the mounting portion.

8. The bearing height detection apparatus according to claim 7, characterized by The measuring device (3) further includes a protrusion (3-10) disposed at a bottom of the second end of the lever (3-3), the protrusion (3-10) being coaxially disposed with the spring (3-6), and the second end of the lever (3-3) abutting against the mounting portion via the protrusion (3-10).

9. The bearing height detection apparatus according to claim 7, characterized by A distance from the rotational axis of the lever (3-3) to both ends of the lever (3-3) is the same.

10. The bearing height detection apparatus according to claim 6, characterized by The measuring device (3) further includes a first position adjustment portion disposed on the loading device and adjustable in position in a direction perpendicular to the positioning surface, the first position adjustment portion being connected to the dial gauge (3-1) and configured to adjust a position of the dial gauge (3-1) on the loading device to adjust a position of the probe of the dial gauge (3-1) relative to the mounting portion.

11. The bearing height detection apparatus according to claim 10, characterized by The first position adjustment portion includes: a first slider (3-8) disposed on the loading device, the loading device including a guide shaft (4), the first slider (3-8) being provided with a slider mounting hole (3-8-3) and an opening (G) extending from the slider mounting hole (3-8-3) to an edge of the first slider (3-8), the slider mounting hole (3-8-3) being in sliding fit with the guide shaft (4), the first slider (3-8) including a first pressing portion (3-8-1) and a second pressing portion (3-8-2) respectively disposed at both sides in a width direction of the opening (G); and a second slider (3-9) disposed on the loading device, the second slider (3-9) being provided with a second slider mounting hole (3-9-3) and a second opening (G) extending from the second slider mounting hole (3-9-3) to an edge of the second slider (3-9), the second slider mounting hole (3-9-3) being in sliding fit with the guide shaft (4), the second slider (3-9) including a third pressing portion (3-9-1) and a fourth pressing portion (3-9-2) respectively disposed at both sides in a width direction of the second opening (G). A locking handle (3-7) is arranged on the first slider (3-8), and the locking handle (3-7) comprises a handle body (3-7-1) and a threaded rod (3-7-2), one end of the handle body (3-7-1) forms a cam (C) abutting against the first pressing part (3-8-1), and the first end of the threaded rod (3-7-2) is hinged with the cam (C) through the first pressing part (3-8-1), and the second end of the threaded rod (3-7-2) is threadedly connected with the second pressing part (3-8-2) through the opening (G) along the width direction of the opening (G); The first position adjusting part has a first locking state and a first unlocking state, the first position adjusting part adjusts the distance between the axis of the cam (C) and the axis of the opening (G) by rotating the handle body (3-7-1) relative to the threaded rod (3-7-2), so as to switch the first position adjusting part between the first locking state and the first unlocking state, in the first locking state, the cam (C) presses the first pressing part (3-8-1) along the width direction of the opening (G), so as to lock the first slider (3-8) on the loading device, and in the first unlocking state, the cam (C) releases the first pressing part (3-8-1), so that the first slider (3-8) can move relative to the loading device along the direction perpendicular to the positioning surface.

12. The bearing height detection apparatus according to claim 7, characterized by The mounting part comprises: A loading device support (2); and A second position adjusting part arranged on the loading device support (2) and adjustable in position along the direction perpendicular to the positioning surface, the second end of the lever (3-3) abuts against the second position adjusting part, and the bearing height detection device is configured to adjust the position of the second position adjusting part on the loading device support (2), so as to adjust the position of the second position adjusting part relative to the second end of the lever (3-3).

13. The bearing height detection apparatus of claim 12, wherein The second position adjusting part comprises a second slider (5) and a locking screw (6), and has a second locking state and a second unlocking state, in the second locking state, the locking screw (6) fixes the second slider (5) on the loading device support (2), and in the second unlocking state, the second slider (5) can move relative to the loading device support (2) along the direction perpendicular to the positioning surface.

14. The bearing height detection apparatus according to any one of claims 1 to 13, characterized by, The transmission mechanism further comprises a mandrel (8-2) and an elastic ring (8-3), the mandrel (8-2) is arranged at the second end of the first transmission shaft (8-1) and is configured to position the circumferential surface of the bearing to be tested (B), and the elastic ring (8-3) is sleeved on the radial outer side of the mandrel (8-2) and is configured to cooperate with the bearing to be tested (B) to transmit the power provided by the power source (8-13) to the bearing to be tested (B).

15. The bearing height detection apparatus according to any one of claims 1 to 13, characterized by, The mounting portion comprises a base (9), the transmission mechanism further comprises a mounting bearing (8-5) arranged at the radial outer side of the first transmission shaft (8-1), the first transmission shaft (8-1) is supported on the base (9) through the mounting bearing (8-5), and the mounting bearing (8-5) is configured to position the axial surface of the first transmission shaft (8-1).

16. The bearing height detection apparatus according to any one of claims 1 to 13, characterized by, Further comprising a control device (12) which is in signal connection with the measuring device (3), the control device (12) is configured to take the bearing height of a standard sample of the same type of bearing as the bearing (B) to be measured as the reference, and obtain the bearing height information according to the change of the distance between the abutting surface and the positioning surface in the direction perpendicular to the positioning surface under the condition that the bearing (B) to be measured rotates.

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