Tapered Roller Bearing Cage Clearance Detection Device and Method

Abstract

The present invention relates to a detecting device and method for the clearance of a tapered roller bearing cage, which comprises the following components with a split design: the bearing balls for detection, which are used to carry the cage to be detected; the cage replacement and ball integral storage support, which is an annular support composed of a hollow cylinder and a frustum of a cone coaxially arranged as a whole; the clearance detection base and the inner ring of the bearing for detection, wherein a step for accommodating the inner ring of the bearing for detection is arranged on the clearance detection base, and the two jointly form a clearance detection component; the integral positioning and replacement cage support, which is an annular support; the ball sorting and limiting retaining ring, which is an annular disc retaining ring and is used for guiding and sorting the bearing balls for detection; and a dial indicator, which contacts with the window beam of the cage to be detected to measure its clearance. This device eliminates all the processes between storing the bearing balls for detection and detecting and replacing the cage, and can quickly replace the cage to be detected.

Description

Technical Field

[0001] The present invention relates to a detecting device and method for the clearance of a cage of a tapered roller bearing, belonging to the technical field of the detection of the axle bearings of railway locomotives and rolling stock. Background Art

[0002] The cage of the tapered roller bearing of the existing axle bearings of railway locomotives and rolling stock plays roles such as evenly arranging the bearing rollers in the bearing, guiding the rollers to run smoothly, and bearing and conducting the local lateral component forces of the rollers. Its dimensional accuracy directly affects the technical parameters and product quality of the entire bearing. Among them, the cage clearance is one of the important parameters. Therefore, detecting the cage clearance during the production process of the cage is an important technological process. All along, the detection of the clearance of the cage of the tapered roller bearing requires the detector to complete each operation tediously. Installing and replacing the cage to be detected involves manually placing the beads frequently and manually transporting the heavy bearing inner ring frequently. There are a series of drawbacks such as cumbersome work, time-consuming and laborious work, low detection efficiency, high working intensity of the detector, easy collision and wear of the beads, and there is also a hidden danger of the inner ring falling and injuring people. Summary of the Invention

[0003] Aiming at the above problems, the present invention provides a detecting device and method for the clearance of a cage of a tapered roller bearing. This detecting device does not require manual touching and placing of the beads, does not require frequent moving of the bearing inner ring, does not require pouring out the beads and re-placing them when replacing the cage, and does not require placing the balls into the storage grid one by one after the detection is completed, which greatly improves the detection efficiency, extends the service life of the tooling, and reduces the operation intensity of the personnel.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A detecting device for the clearance of a cage of a tapered roller bearing, including the following components with a split design:

[0006] The bearing balls for detection, used to carry the cage to be detected;

[0007] The cage replacement and ball integral storage support, which is an annular support composed of a hollow cylinder and a frustum of a cone coaxially arranged as a whole, and is used to carry the bearing balls for detection;

[0008] The clearance detection base and the bearing inner ring for detection. A step for accommodating the bearing inner ring for detection is provided on the clearance detection base, and the two together form a clearance detection component;

[0009] The integral positioning and cage replacement support, which is an annular support, and is used to integrally lift the to-be-detected component composed of the bearing balls for detection and the cage to be detected from the clearance detection component, or place the to-be-detected component onto the cage replacement and ball integral storage support;

[0010] The ball sorting limiting retaining ring is an annular disk-shaped retaining ring used to guide and sort the balls of the bearing for inspection.

[0011] The dial indicator contacts the window beam of the cage to be inspected to measure its clearance.

[0012] For the conical roller bearing cage clearance detection device, preferably, the outer diameter of the lower end of the frustum is larger than the outer diameter of its upper end, and the outer diameter of the lower end of the frustum is smaller than the outer diameter of the cylinder. An inwardly inclined annular bevel step is formed at the connection between the two.

[0013] For the conical roller bearing cage clearance detection device, preferably, the outer diameter of the cylinder is the same as the outer diameter of the large end of the inner ring of the bearing for inspection.

[0014] For the conical roller bearing cage clearance detection device, preferably, the inclination of the inwardly inclined annular bevel step is the same as the slope of the bottom surface of the balls of the bearing for inspection, and the width of the inwardly inclined annular bevel step is not less than the radius of the large end of the balls of the bearing for inspection.

[0015] For the conical roller bearing cage clearance detection device, preferably, the inclination of the frustum is the same as the inclination of the generatrix of the balls of the bearing for inspection, and its height is 1 / 4 to 1 / 3 of the height of the balls of the bearing for inspection.

[0016] For the conical roller bearing cage clearance detection device, preferably, the upper end of the overall positioning and replacement cage support seat is an upper support inclined surface inclined towards the axis, and an inner ring lower cone opening is provided at the lower end.

[0017] For the conical roller bearing cage clearance detection device, preferably, the outer edge height of the inwardly inclined annular bevel step is the same as the inner edge height of the upper support inclined surface. After the cage replacement and ball overall storage support seat and the overall positioning and replacement cage support seat are matched with each other, the inclined surface of the inwardly inclined annular bevel step and the upper support inclined surface form a flush inclined surface, facilitating the sliding of the balls of the bearing for inspection on this flush inclined surface.

[0018] For the conical roller bearing cage clearance detection device, preferably, the outer support ring surface diameter of the overall positioning and replacement cage support seat is smaller than the inner diameter of the large end of the cage to be inspected, and the inner support ring surface diameter of the overall positioning and replacement cage support seat is larger than the outer diameter of the large end of the inner ring of the bearing for inspection.

[0019] For the conical roller bearing cage clearance detection device, preferably, the inclination of the upper support inclined surface is the same as the slope of the bottom surface of the inspection bearing balls.

[0020] For the described conical roller bearing cage clearance detection device, preferably, the ball sorting limiting retaining ring is of an inverted conical structure, and its outer wall is sequentially provided with a lower positioning stop, a lower positioning step, a sorting conical surface, an upper positioning stop, an upper positioning inclined surface, and a pressing plate cylindrical surface from bottom to top.

[0021] For the described conical roller bearing cage clearance detection device, preferably, the diameter of the lower positioning stop is smaller than the inner diameter of the inner ring of the bearing for detection.

[0022] For the described conical roller bearing cage clearance detection device, preferably, the outer diameter of the lower positioning step is smaller than the distance between the two closest points on the small end edges of the two bearing balls for detection when the two bearing balls for detection are placed on the step surface of the inner inclined annular inclined surface step with their two end points in the diameter direction in contact.

[0023] For the described conical roller bearing cage clearance detection device, preferably, the diameter of the upper positioning stop is the same as the inscribed circle diameter of the small end edge of the bearing ball for detection, and its depth is greater than the fillet radius of the small end edge of the bearing ball for detection.

[0024] For the described conical roller bearing cage clearance detection device, preferably, the slope of the upper positioning inclined surface is the same as the slope of the small end surface of the bearing ball for detection.

[0025] For the described conical roller bearing cage clearance detection device, preferably, the diameter of the pressing plate cylindrical surface is smaller than the inner diameter of the small end of the cage to be detected.

[0026] For the described conical roller bearing cage clearance detection device, preferably, an overall lifting handle is provided on the overall positioning and replacing cage support.

[0027] Based on the above conical roller bearing cage clearance detection device, the present invention also provides a detection method for this device, including the following steps:

[0028] Before detection, the overall positioning and replacing cage support is sleeved outside the cage replacing and ball overall storage support, and the component to be detected composed of the bearing balls for detection and the cage to be detected is placed on the flush inclined surface formed by the inclined surface of the inner inclined annular inclined surface step and the upper support inclined surface;

[0029] During detection, press the ball sorting and limiting retaining ring into the small end of the detected cage. At this time, the detection bearing balls are pushed outwards into the corresponding pocket positions of the detected cage, and all the balls are locked. At this time, lift the overall positioning and replacement cage support to separate the detection bearing balls, the detected cage, and the ball sorting and limiting retaining ring from the cage replacement and ball overall storage support, and then place them on the inner ring of the detection bearing on the clearance detection base. The clearance can be detected using the dial indicator.

[0030] After the test, drag the component to be detected and the ball sorting and limiting retaining ring out and place them on the cage replacement and ball overall storage support. Remove the ball sorting and limiting retaining ring, shake the detected cage, and then it can be taken out. Place another detected cage on the detection bearing balls, cover the ball sorting and limiting retaining ring, press the ball sorting and limiting retaining ring while shaking the detected cage until the ball sorting and limiting retaining ring presses all the detection bearing balls into the upper positioning stop. At this time, lift and transport the combination of the component to be detected and the ball sorting and limiting retaining ring to the clearance detection component for detection, and repeat the process subsequently.

[0031] Due to the adoption of the above technical solutions, the present invention has the following advantages:

[0032] 1. Since the present invention adopts the cage replacement and ball overall storage support, the processes between storing the detection bearing balls and detecting and replacing the cage are all eliminated, and the detected cage can be quickly replaced.

[0033] 2. Since the present invention adopts the cage replacement and ball overall storage support, when replacing the cage, there is no need for personnel to contact the balls. Only when using this part for the first time, the detection bearing balls need to be manually stacked once. After that, there is no need for personnel to contact the balls anymore, which can prevent the balls from being knocked, corroded, etc.

[0034] 3. Since the present invention adopts the overall positioning and replacement cage support, the detected cage and the complete set of detection bearing balls can be lifted from the cage replacement and ball overall storage support and placed on the inner ring of the inspection bearing on the clearance detection base. There is no need for manual inversion of the cage to stack the balls one by one, and then manually carry the inner ring, invert it and place it into the cage with the balls arranged, and then invert the whole and carry it to the clearance detection base as a whole.

[0035] 4. Since the present invention adopts an integral positioning and replacing cage carrier, the cage and the complete set of bearing balls for detection can be lifted as a whole from the inner ring of the inspection bearing on the clearance detection base and placed on the cage replacement and ball integral storage carrier, without the need to carry the inner ring. In the traditional method, the inner ring, cage and complete set of balls are manually carried as a whole to the detection table, and then inverted as a whole. After removing the inner ring and taking out the balls one by one, another cage to be measured is replaced and inverted. Then, the balls are manually stacked one by one, and then the inner ring is manually carried and inverted and placed into the cage with the balls arranged, and then inverted as a whole and carried and placed on the clearance detection base as a whole.

[0036] 5. Since the present invention adopts a ball sorting and limiting retaining ring, it can play a role in fixing the bearing balls for detection when the integral positioning and replacing cage carrier lifts the cage to be detected and the complete set of bearing balls for detection as a whole from the inner ring of the inspection bearing on the clearance detection base after the clearance detection is completed.

[0037] 6. Since the present invention adopts a ball sorting and limiting retaining ring, when replacing the cage, the bearing balls for detection located on the cage replacement and ball integral storage carrier can be pushed into the cage to be detected, and it can play a role in fixing the bearing balls for detection when the integral positioning and replacing cage carrier lifts the cage to be detected and the complete set of bearing balls for detection as a whole from the cage replacement and ball integral storage carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a structural sectional view of the tapered roller bearing cage clearance detection device provided by an embodiment of the present invention in the detection state;

[0039] Figure 2 is a sectional view of the cage replacement and ball integral storage carrier provided by this embodiment of the present invention;

[0040] Figure 3 is a sectional view of the integral positioning and replacing cage carrier provided by this embodiment of the present invention;

[0041] Figure 4 is a sectional view of the ball sorting and limiting retaining ring provided by this embodiment of the present invention;

[0042] Figure 5 is a relative position sectional view of the cage replacement and ball integral storage carrier, integral positioning and replacing cage carrier, integral lifting handle, bearing balls for detection, cage to be detected, etc. in the storage state or the state of waiting for inspection and sorting provided by the embodiment of the present invention;

[0043] Figure 6 is Figure 5 the relative position sectional view of each part after the combined body is pressed into the ball sorting and limiting retaining ring;

[0044] Figure 7 A relative position sectional view of the clearance detection base, the inner ring of the bearing for detection, the integral positioning and replacement cage support, the integral lifting handle, the bearing balls for detection, the cage to be detected, the ball sorting and limiting retaining ring, etc. in a semi-inserted state or a semi-protruded state provided by the embodiments of the present invention;

[0045] The marks in the figure are as follows:

[0046] 1 - Cage replacement and integral ball storage support; 2 - Integral positioning and replacement cage support; 3 - Integral lifting handle; 4 - Clearance detection base; 5 - Inner ring of the bearing for detection; 6 - Bearing balls for detection; 7 - Cage to be detected; 8 - Ball sorting and limiting retaining ring; 9 - Bottom surface of the cylinder; 10 - Cylinder; 11 - Inclined annular bevel step; 12 - Frustum; 13 - Upper end surface; 14 - Inner hole cylindrical surface; 15 - Inner supporting ring surface; 16 - Bottom surface of the supporting ring; 17 - Lower inner conical opening; 18 - Lower positioning stop; 19 - Lower positioning step; 20 - Sorting conical surface; 21 - Upper positioning stop; 22 - Upper positioning bevel; 23 - Pressing plate cylindrical surface; 24 - Small end of the cage to be detected; 25 - Large end of the cage to be detected; 26 - Outer supporting ring surface; 27 - Upper supporting bevel. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention belongs. The "first", "second", "third", "fourth" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0049] As Figure 1As shown in the figure, it is a structural sectional view of the overall composition of the device of the present invention in the detection state. It consists of a cage replacement and ball overall storage support 1, an overall positioning cage replacement support 2, an overall lifting handle 3, a clearance detection base 4, a bearing inner ring for detection 5, detection bearing balls 6, a cage to be detected 7, a ball sorting limit retaining ring 8, etc. The combination of 2 to 8 is the relative position of the cage to be detected 7 in the detection state and is placed on the detection table; there is no strict relative position requirement between the cage replacement and ball overall storage support 1 and the combination of 2 to 8, and it is parallel to the detection table at a suitable position convenient for detection operation relative to the combination of 2 to 8.

[0050] As Figure 2 shown, it is a sectional view of the cage replacement and ball overall storage support 1 provided by the present invention. It consists of a cylinder bottom surface 9, a cylinder 10, an inwardly inclined annular inclined surface step 11, a frustum 12, an upper end surface 13, an inner hole cylindrical surface 14, etc. The overall height H2 of the cylinder 10 is determined by the height H3 of the overall positioning cage replacement support 2 that cooperates with it (as Figure 3 shown), and is equal to the inner edge height of the upper support inclined surface 27 of the overall positioning cage replacement support 2. That is, when this seat is used in cooperation with the overall positioning cage replacement support 2, the inwardly inclined annular inclined surface step 11 and the upper support inclined surface 27 of the overall positioning cage replacement support 2 form a flush inclined surface to facilitate the sliding of the detection bearing balls 6 on this inclined surface; the inwardly inclined annular inclined surface step 11 and the frustum 12 are used to carry a full set of detection bearing balls 6; the outer cylinder diameter Φ3 of the cylinder 10 is equal to the large end outer diameter of the bearing inner ring 5 for detection, the inclination θ2 of its inwardly inclined annular inclined surface step 11 is equal to the bottom slope of the detection bearing balls 6, and the step surface width (i.e., the distance between Φ2 and Φ3) is not less than the large end radius of the detection bearing balls 6; the inclination θ1 of the frustum 12 is equal to the generatrix inclination of the detection bearing balls 6, and its height is about 1 / 4 to 1 / 3 of the height of the detection bearing balls 6 to maintain the stable placement of the detection bearing balls 6.

[0051] As Figure 3As shown in the figure, it is a cross-sectional view of the overall positioning and replacement cage support 2 provided by the present invention. It consists of an outer support ring surface 26, an upper support inclined surface 27, an inner support ring surface 15, a support ring bottom surface 16, an inner ring lower tapered opening 17, etc. Its overall height H3 is less than the height from the bottom surface of the large end of the detected cage 7 to the detection table when the detected cage 7 is in the detection position. Two overall lifting handles 3 are provided on the support to lift or place the combination of the bearing balls 6 for detection and the detected cage 7 as a whole. The table surface connecting the overall lifting handle 3 can be simplified and removed, so that the support is simplified into a cylindrical ring, which is convenient for the interference probe without moving the dial indicator. The diameter Φ4 of the outer support ring surface 26 is less than the inner diameter of the large end of the detected cage 7, and there is a clearance fit with the inner side of the large end of the detected cage 7 during the lifting action. The inclination θ3 of the upper support inclined surface 27 is equal to the bottom slope of the bearing balls 6 for detection. The diameter Φ5 of the inner support ring surface 15 is greater than the outer diameter of the large end of the inner ring of the bearing 5 for detection. The main function of the inner ring lower tapered opening 17 is for installation guidance.

[0052] As Figure 4 shown, it is a cross-sectional view of the ball sorting and limiting retaining ring 8 provided by the present invention. It consists of a lower positioning stop 18, a lower positioning step 19, a sorting tapered surface 20, an upper positioning stop 21, an upper positioning inclined surface 22, a pressure plate cylindrical surface 23, etc. The diameter Φ7 of the lower positioning stop 18 is less than the inner diameter of the inner ring of the bearing 5 for detection. The outer diameter Φ8 of the lower positioning step 19 is less than the distance between the two closest points on the small end edges of the two bearing balls 6 for detection when the two bearing balls 6 for detection are placed on the inner inclined annular slope step 11 of the "cage replacement and ball overall storage support 1" at both ends in the diameter direction, such as Figure 5 shown in the Φ10 dimension. The sorting tapered surface 20 serves to guide and sort the bearing balls 6 for detection. The diameter Φ9 of the upper positioning stop 21 is equal to the inscribed circle diameter of the small end edge of the bearing balls 6 for detection, and its depth is greater than the fillet radius of the small end edge of the bearing balls 6 for detection. The slope of the upper positioning inclined surface 22 is equal to the slope of the small end surface of the bearing balls 6 for detection. The diameter Φ6 of the pressure plate cylindrical surface 23 is less than the inner diameter 24 of the small end of the detected cage 7 (as Figure 5 shown).

[0053] As Figure 5 shown, it is a relative position cross-sectional view of the cage replacement and ball overall storage support 1, the overall positioning and replacement cage support 2, the overall lifting handle 3, the bearing balls 6 for detection, the detected cage 7, etc. in the storage state or the state of waiting for inspection and sorting. In this state, the lower end surface of the detected cage 7 is in a free state. At this time, gently shaking the detected cage 7 can make all the bearing balls 6 for detection located in the corresponding pocket positions, and the detected cage 7 can be easily removed or another detected cage 7 can be replaced without touching the bearing balls 6 for detection.

[0054] AsFigure 6 As shown, it is Figure 5 a sectional view of the relative positions of each part after the combined body of is pressed into the ball sorting limit retaining ring 8. At this time, the bearing balls 6 for detection are pushed outwards into the corresponding pocket positions of the cage 7 to be detected, and all the balls are locked. At this time, by lifting the overall positioning and replacing the cage support 2, the bearing balls 6 for detection, the cage 7 to be detected, and the ball sorting limit retaining ring 8 can be detached from the cage replacement and ball overall storage support 1 as a whole and placed on the inner ring 5 of the bearing for detection on the clearance detection base 4.

[0055] As Figure 7 shown, it is a sectional view of the relative positions of the clearance detection base 4, the inner ring 5 of the bearing for detection, the overall positioning and replacing cage support 2, the overall lifting handle 3, the bearing balls 6 for detection, the cage 7 to be detected, the ball sorting limit retaining ring 8, etc. in a semi-inserted state or a semi-pulled-out state provided by the present invention. It can be lowered to perform clearance detection, pulled out and placed on the cage replacement and ball overall storage support 1. Remove the ball sorting limit retaining ring 8, gently shake the cage 7 to be detected, and the measured cage can be taken out. Replace another cage 7 to be detected and place it on the bearing balls 6 for detection. Cover the ball sorting limit retaining ring 8, while pressing the ball sorting limit retaining ring 8 and gently shaking the cage 7 to be detected until the ball sorting limit retaining ring 8 presses all the bearing balls 6 for detection into the upper positioning stop 21. At this time, the combination of 6, 7, and 8 can be lifted and transported as a whole to the combination of 4 and 5 for clearance detection. And so on in cycles.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detecting device for the clearance of a tapered roller bearing cage, characterized in that, The following components with a split design are included: The bearing balls (6) for detection, which are used to carry the cage (7) to be detected; The cage replacement and ball integral storage support (1), which is an annular support composed of a hollow cylinder (10) and a frustum (12) arranged coaxially as a whole, and is used to carry the bearing balls (6) for detection; The clearance detection base (4) and the inner ring (5) of the bearing for detection. A step for accommodating the inner ring (5) of the bearing for detection is provided on the clearance detection base (4), and the two together form a clearance detection component; The integral positioning and replacement cage support (2), which is an annular support and is used to integrally lift the to-be-detected component composed of the bearing balls (6) for detection and the cage (7) to be detected from the clearance detection component, or place the to-be-detected component onto the cage replacement and ball integral storage support (1); The ball sorting and limiting retaining ring (8), which is an annular disc-shaped retaining ring and is used to guide and sort the bearing balls (6) for detection; A dial indicator, which contacts the window beam of the cage (7) to be detected to measure its clearance; The outer diameter of the lower end of the frustum (12) is larger than the outer diameter of its upper end, and the outer diameter of the lower end of the frustum (12) is smaller than the outer diameter of the cylinder (10). An inwardly inclined annular bevel step (11) is formed at the connection of the two; The inclination of the inwardly inclined annular bevel step (11) is the same as the bottom slope of the bearing balls (6) for detection, and the width of the inwardly inclined annular bevel step (11) is not less than the large-end radius of the bearing balls (6) for detection; The inclination of the frustum (12) is the same as the generatrix inclination of the bearing balls (6) for detection, and its height is 1 / 4 to 1 / 3 of the height of the bearing balls (6) for detection.

2. The conical roller bearing cage clearance detection device according to claim 1, characterized in that, The outer diameter of the cylinder (10) is the same as the large-end outer diameter of the inner ring (5) of the bearing for detection.

3. The conical roller bearing cage clearance detection device according to claim 1, characterized in that, The upper end of the integral positioning and replacement cage support (2) is an upper support inclined surface (27) inclined towards the axis, and an inner ring lower taper (17) is provided at the lower end.

4. The cone roller bearing cage clearance detection device according to claim 3, characterized in that, The outer edge height of the inwardly inclined annular bevel step (11) is the same as the inner edge height of the upper support inclined surface (27). After the cage replacement and ball integral storage support (1) and the integral positioning and replacement cage support (2) are mutually matched, the inclined surface of the inwardly inclined annular bevel step (11) and the upper support inclined surface ().

5. The conical roller bearing cage clearance detection device according to claim 1, characterized in that The diameter of the outer support ring surface (26) of the integral positioning and replacement cage support (2) is smaller than the large-end inner diameter of the cage (7) to be detected, and the diameter of the inner support ring surface (15) of the integral positioning and replacement cage support (2) is larger than the large-end outer diameter of the inner ring (5) of the bearing for detection.

6. The conical roller bearing cage clearance detection device according to claim 3, characterized in that, The inclination of the upper support inclined surface (27) is the same as the bottom slope of the bearing balls (6) for detection.

7. The conical roller bearing cage clearance detection device according to claim 6, characterized in that The ball sorting limiting retaining ring (8) is of an inverted conical structure, and its outer wall is successively provided with a lower positioning stop (18), a lower positioning step (19), a sorting conical surface (20), an upper positioning stop (21), an upper positioning inclined surface (22), and a pressure plate cylindrical surface (23) from bottom to top.

8. The conical roller bearing cage clearance detection device according to claim 7, characterized in that The diameter of the lower positioning stop (18) is smaller than the inner diameter of the inner ring (5) of the bearing for detection.

9. The conical roller bearing cage clearance detection device according to claim 7, characterized in that, The outer diameter of the lower positioning step (19) is smaller than the distance between the two closest points on the small end edges of the two ball bearings (6) for detection when the two ball bearings (6) for detection are placed on the step surface of the inner inclined annular inclined surface step (11) with their small ends in contact at both ends in the diameter direction.

10. The conical roller bearing cage clearance detection device according to claim 7, characterized in that, The diameter of the upper positioning stop (21) is the same as the inscribed circle diameter of the small end edge of the ball bearing (6) for detection, and its depth is greater than the fillet radius of the small end edge of the ball bearing (6) for detection.

11. The conical roller bearing cage clearance detection device according to claim 7, characterized in that, The slope of the upper positioning inclined surface (22) is the same as the slope of the small end surface of the ball bearing (6) for detection.

12. The conical roller bearing cage clearance detection device according to claim 7, characterized in that, The diameter of the pressure plate cylindrical surface (23) is smaller than the inner diameter of the small end of the cage (7) to be detected.

13. The conical roller bearing cage clearance detection device according to claim 1, characterized in that An integral lifting handle (3) is provided on the integral positioning and replacing cage support (2).

14. A detection method for a clearance detection device of a tapered roller bearing cage according to any one of claims 7-12, characterized in that, It includes the following steps: Before detection, the integral positioning and replacing cage support (2) is sleeved outside the cage replacing and ball integral storage support (1), and the component to be detected composed of the ball bearing (6) for detection and the cage (7) to be detected is placed on the flush inclined surface formed by the inclined surface of the inner inclined annular inclined surface step (11) and the upper support inclined surface (27); During detection, the ball sorting limiting retaining ring (8) is pressed into the small end of the cage (7) to be detected. At this time, the ball bearing (6) for detection is pushed outwards into the corresponding pocket position of the cage (7) to be detected, and all the balls are locked. At this time, lifting the integral positioning and replacing cage support (2) can integrally separate the ball bearing (6) for detection, the cage (7) to be detected, and the ball sorting limiting retaining ring (8) from the cage replacing and ball integral storage support (1), and then place them on the inner ring (5) of the bearing for detection on the clearance detection base (4). The clearance can be detected by using the dial indicator; After the test is completed, the component to be detected and the ball sorting limiting retaining ring (8) are taken out and placed on the cage replacing and ball integral storage support (1). The ball sorting limiting retaining ring (8) is removed, and the cage (7) to be detected is shaken, then it can be taken out. Another cage (7) to be detected is placed on the ball bearing (6) for detection, the ball sorting limiting retaining ring (8) is covered, and while pressing the ball sorting limiting retaining ring (8), the cage (7) to be detected is shaken until the ball sorting limiting retaining ring (8) presses all the ball bearings (6) for detection into the upper positioning stop (21). At this time, the combination of the component to be detected and the ball sorting limiting retaining ring (8) is integrally lifted and transported to the clearance detection component for detection, and the process is repeated subsequently.

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