CN111220384A - Vertical telescopic type double-row tapered roller bearing axial loading system - Google Patents
Vertical telescopic type double-row tapered roller bearing axial loading system Download PDFInfo
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- CN111220384A CN111220384A CN202010172400.6A CN202010172400A CN111220384A CN 111220384 A CN111220384 A CN 111220384A CN 202010172400 A CN202010172400 A CN 202010172400A CN 111220384 A CN111220384 A CN 111220384A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
Abstract
The invention provides a vertical telescopic double-row tapered roller bearing axial loading system, which comprises a platform, a loading tray and the like; the double-row bearing comprises an inner ring I, an inner ring II, a middle space ring, an outer ring and two groups of rolling bodies; a groove is formed above the platform, the loading tray, the loading disc and the bearing tray are arranged in the groove, a guide rod is connected to the bearing tray, and the guide rod is connected with the loading tray in a sliding mode; the bottom of the loading tray is connected with a loading ball head, and the loading ball head is connected with a telescopic rod of a loading cylinder; a loading disc is arranged above the loading tray and is in contact connection with the lower end face of the outer ring; and a rotary mandrel is arranged above the double-row bearing and is connected with an inner hole of the double-row bearing during detection. The vertical telescopic type is adopted, and the middle space ring and the inner ring II are separated from the inner ring I under the action of gravity during detection, so that the measurement of the upper bearing is not influenced by the middle space ring and the inner ring II; after the bearing above the bearing is detected, the double-row bearing is turned over and another row of the double-row bearing is measured.
Description
Technical Field
The invention relates to the technical field of bearing dynamic quality detection, in particular to a vertical telescopic type double-row tapered roller bearing axial loading system.
Background
At present, due to the particularity of the double-row tapered roller bearing structure, the dynamic quality detection of the finished bearing is basically in a blank state, particularly in the use units of the bearing, the dynamic quality judgment of the bearing is also in the judgment of manual hand disc + ear listening and hand feeling, the judgment means is backward, and the false detection rate is very high. The invention not only provides a necessary means for the dynamic quality detection of the bearing of the rail wagon, but also fills the domestic blank of the dynamic quality detection of the bearing.
According to the GB/T24610.3-2009/ISO15242-3:2006 standard, axial load needs to be applied to the tapered roller bearing during vibration measurement. The double-row tapered roller bearing is actually a combination of two sets of tapered roller bearings, and the detection result is more reliable. The standard stipulates that the vibration quality detection of the double-row tapered roller bearing needs to be separately detected for the two rows of bearings. At the moment, the separation of the middle spacer ring from the bearing to be detected is considered during detection, which puts special requirements on detection equipment.
Most of the existing other bearing dynamic quality detection systems are horizontal test beds, and can only be used for paired or disassembled detection in the detection process, so that the detection efficiency and the detection reliability are lower. And is almost impossible for the bearing usage unit.
Disclosure of Invention
According to the scheme, most of the existing other bearing dynamic quality detection systems are horizontal test beds, the detection can only be carried out in pairs or in a disassembly mode in the detection process, the technical problems of low efficiency, damage to the structure of the detected bearing and the like exist, and the vertical telescopic double-row tapered roller bearing axial loading system is provided. The invention mainly utilizes the platform, the loading tray and the loading tray to push the bearing to be detected into the rotary mandrel, and the bearing at the lower end is separated from the bearing at the upper end by the relative sliding between the loading tray and the bearing tray, so that the paired bearings do not need to be detached for independent detection during detection, and the detection efficiency and the detection reliability are improved.
The technical means adopted by the invention are as follows:
a vertical telescopic type axial loading system of a double-row tapered roller bearing is used for dynamic quality detection of the double-row tapered roller bearing, the double-row tapered roller bearing comprises an inner ring I, an inner ring II, a middle spacer ring, an outer ring and two symmetrical groups of rolling bodies, wherein the inner ring I is positioned above the inner ring II, the middle spacer ring is arranged between the inner ring I and the inner ring II, and the two groups of rolling bodies are respectively arranged between the inner ring I and the outer ring and between the inner ring II and the outer ring;
the axial loading system comprises: the device comprises a platform, a loading tray, a loading disc, a bearing tray and the like, wherein a double-row tapered roller bearing is placed on the bearing tray;
a groove is formed above the platform, the loading tray is connected with a ball head at the bottom of the groove in a matching manner, two through holes I are formed in the platform, two guide rods are connected in the through holes I in a sliding manner, the guide rods move in the through holes I, and the top ends of the guide rods are connected with the bottom end of the loading tray; the bottom center of the loading tray is connected with a loading ball head, the bottom end of the loading ball head is connected with a telescopic rod of a loading cylinder, and the telescopic rod is positioned in a through long hole formed in the middle of the platform;
the loading tray is arranged on the outer edge above the loading tray, the loading tray is of a cylindrical structure with a through hole inside, and the top end of the loading tray is in contact connection with the lower end face of the outer ring;
a through hole II is formed in the loading tray, a bearing tray support is connected in the through hole II in a sliding mode, and the bearing tray support slides in the through hole II; the top end of the bearing tray strut is connected with the bearing tray and is used for supporting the double-row tapered roller bearing; the top of the bearing tray is in contact connection with the bottom of the inner ring II;
and a rotary mandrel is arranged above the double-row tapered roller bearing and is connected with the inner ring of the double-row tapered roller bearing.
Furthermore, the axis of the rotary mandrel, the axis of the double-row tapered roller bearing, the axis of the telescopic rod of the loading cylinder, the central axis of the bearing tray and the central axis of the loading tray are overlapped; the central axis of the guide rod, the central axis of the bearing tray support and the axis of the rotary mandrel are parallel.
Further, in an initial state, the bottom end of the bearing tray strut is in contact connection with the bottom of the groove of the platform, so that the bearing tray and the double-row tapered roller bearing are kept stationary; under the working state, the bearing tray support is in sliding connection with the loading tray, so that the bearing tray moves downwards, the inner ring II moves downwards under the action of self gravity, and the inner ring I of the double-row tapered roller bearing is separated from the middle space ring and the inner ring II.
Furthermore, under the working state, the shaft shoulder and the outer diameter of the rotary mandrel are tightly connected with the inner ring I of the double-row tapered roller bearing, and the inner ring II and the spacer ring are separated from the inner ring I under the action of gravity, so that the inner ring I is ensured to be measured without interference.
Further, the upper surface of the bearing tray and the upper plane of the platform are on the same plane in the preparation measuring stage, so that the measured bearing is smoothly pushed into a position to be measured.
Furthermore, the two through holes I are symmetrically arranged on extension lines positioned on two sides of the diameter of the through long hole, or are uniformly distributed in a circumference manner by taking the axis of the through long hole as a circle center line and are used for being in sliding fit with the guide rod; the guide rod is used for limiting the following rotation of the outer ring during bearing measurement and limiting the excessive inclination of the loading tray.
Furthermore, the number of the through holes II is at least three, the central axis of the loading tray is averagely arranged on two sides, or the central axis of the loading tray is uniformly distributed on the circumference as a circle center line.
Further, the loading system may perform the following functions: 1) the measured bearing is convenient to push into a measurement preparation position; 2) pushing the tested bearing into the mandrel; 3) applying an axial load to the measured bearing; 4) the inner ring I of the bearing to be measured is separated from the middle space ring and the inner ring of the bearing not to be measured; 5) and returning the tested bearing to the original position.
Compared with the prior art, the invention has the following advantages:
1. according to the vertical telescopic double-row tapered roller bearing axial loading system provided by the invention, the tested bearing is pushed into the rotary mandrel through the platform, the loading tray and the loading disc, and the lower end bearing is separated from the upper end tested bearing through the relative sliding between the loading tray and the bearing tray, so that two rows of bearings can be respectively detected.
2. The vertical telescopic type axial loading system for the double-row tapered roller bearing provided by the invention adopts a vertical telescopic type, the paired bearings do not need to be disassembled for independent detection during detection, and the middle spacing ring and the inner ring II are separated from the inner ring I under the action of gravity during detection, so that the measurement of the upper-row bearing is not influenced by the middle spacing ring and the inner ring II; after the detection of the bearing above is finished, the measurement of the other row of bearings can be started only by turning over the double-row tapered roller bearing; the influence of another bearing on the bearing to be detected is eliminated, and the detection efficiency and the detection reliability are improved.
In conclusion, the technical scheme of the invention can solve the problems that other bearing dynamic quality detection systems in the prior art are mostly horizontal test beds, and can only be used for paired or disassembled detection in the detection process, so that the detection efficiency and the detection reliability are low, the structure of a detected bearing is damaged, and the like.
Based on the reason, the invention can be widely popularized in the fields of dynamic quality detection of the double-row tapered roller bearing and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 shows an object to be inspected in the present invention: the double-row tapered roller bearing is structurally schematic.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the present invention in an operating state.
In the figure: 1. a rotating mandrel; 2. an inner ring I; 3. a bearing tray; 4. a platform; 5. loading a tray; 6. loading a ball head; 7. a bearing tray support; 8. a loading tray; 9. a middle space ring; 10. an outer ring; 11. a rolling body; 12. an inner ring II; 13. a guide bar; 14. a telescopic rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 3, the present invention provides an axial loading system for a vertical telescopic double-row tapered roller bearing, comprising: platform 4, loading tray 5, loading dish 8 and bearing tray 3 etc. double-row tapered roller places on bearing tray 3, bearing tray 3 and double-row tapered roller bearing contact, and platform 4 installs in the frame, and the frame is prior art, does not draw in the picture. The double-row tapered roller bearing is a detection object of the invention and belongs to the prior art, wherein the double-row tapered roller bearing comprises an inner ring I2, an inner ring II 12, a middle space ring 9, an outer ring 10 and two groups of symmetrical rolling bodies 11, the inner ring I2 is positioned above the inner ring II 12, the middle space ring 9 is arranged between the inner ring I2 and the inner ring II 12, and the two groups of rolling bodies 11 are respectively arranged between the inner ring I2 and the outer ring 10 and between the inner ring II 12 and the outer ring 10, as shown in figure 1.
The outer edge above the loading tray 5 is provided with a loading disc 8, the loading disc 8 is of a cylindrical structure with a through hole inside, and the top end of the loading disc 8 is in contact connection with the lower end face of the outer ring 10. The loading tray 5 is provided with at least three through holes II, bearing tray struts 7 are connected in the through holes II, the bearing tray struts 7 slide in the through holes II, and the central axis of the loading tray 5 is averagely arranged on two sides or is uniformly distributed on the circumference by taking the central axis of the loading tray 5 as a circular center line. The top end of the bearing tray strut 7 is contacted with the bearing tray 3 and is used for supporting the double-row tapered roller bearing; the top of the bearing tray 3 is in contact with the bottom of the inner ring II 12. The upper surface of the bearing tray 3 and the upper plane of the platform 4 are on the same plane in the stage of preparing for measurement, so that the measured bearing can be smoothly pushed into the position to be measured. In an initial state, the bottom end of the bearing tray strut 7 is in contact connection with the bottom of the groove of the platform 4, so that the bearing tray 3 and the double-row tapered roller bearing are kept stationary; under the working state, the bearing tray strut 7 is in sliding connection with the loading tray 5, so that the bearing tray 3 moves downwards, the inner ring II 12 moves downwards under the action of self gravity, and the inner ring I2 of the double-row tapered roller bearing is separated from the middle spacer 9 and the inner ring II 12.
A rotary mandrel 1 installed on the rack is arranged right above the double-row tapered roller bearing, and the rotary mandrel 1 is connected with an inner ring I2 of the double-row tapered roller bearing. Under the working state, the shaft shoulder and the outer diameter of the rotary mandrel 1 are tightly connected with the inner bore inner ring I2 of the double-row tapered roller bearing, and the inner ring II 12 and the spacer ring 9 are separated from the inner ring I2 under the action of gravity, so that the measuring inner ring I2 is ensured not to be interfered. Wherein, the axis of the rotary mandrel 1, the axis of the double-row tapered roller bearing, the axis of the telescopic rod 14 of the loading cylinder, the central axis of the bearing tray 3 and the central axis of the loading tray 5 are superposed. The central axis of the guide rod 13, the central axis of the bearing tray support 7 and the axis of the rotary mandrel 1 are parallel. Furthermore, the entire loading system is mounted vertically, i.e. the axis of the above-mentioned revolving spindle 1 is perpendicular to the horizontal plane.
The loading system of the invention can complete the following functions: 1) the measured bearing is convenient to push into a measurement preparation position; 2) pushing the tested bearing into the mandrel; 3) applying an axial load to the measured bearing; 4) the inner ring I2 of the tested bearing is separated from the middle spacer 9 and the inner ring of the non-tested bearing; 5) and returning the tested bearing to the original position.
The working process is as follows: after the measuring program is started, the loading air cylinder pushes up the loading tray 5 through the telescopic rod 14 and the loading ball head 6, and the loading tray 8 is also pushed up together. When the loading disc 8 is pushed upwards, the bearing tray 3 moves downwards relative to the loading disc 8 under the action of gravity, so that the end face of the inner ring II 12 of the lower end bearing is separated from the bearing tray 3. Meanwhile, under the action of gravity, the components in the lower end bearing (the bearing inner ring II 12, the rolling bodies 11 and the retainer) and the middle spacer ring 9 move downwards, so that the middle spacer ring 9 is separated from the upper end tested bearing. The loading disc 8 continues to push the bearing to move upwards until the tested bearing is pushed into the rotary mandrel 1, wherein the rotary mandrel 1 is inserted into the inner hole of the inner ring I2 of the upper tested bearing. And completing the axial loading of the bearing (see figure 3) at the same time of completing the installation of the tested bearing.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A vertical telescopic type axial loading system of a double-row tapered roller bearing is used for dynamic quality detection of the double-row tapered roller bearing, the double-row tapered roller bearing comprises an inner ring I (2), an inner ring II (12), a middle spacer ring (9), an outer ring (10) and two symmetrical groups of rolling bodies (11), wherein the inner ring I (2) is positioned above the inner ring II (12), the middle spacer ring (9) is arranged between the inner ring I (2) and the inner ring II (12), and the two groups of rolling bodies (11) are respectively connected between the inner ring I (2) and the outer ring (10) and between the inner ring II (12) and the outer ring (10);
characterized in that the axial loading system comprises: the device comprises a platform (4), a loading tray (5), a loading tray (8) and a bearing tray (3), wherein double-row tapered roller bearings are placed on the bearing tray (3);
a groove is formed above the platform (4), the loading tray (5) is connected with a ball head at the bottom of the groove in a matching manner, two through holes I are formed in the platform (4), two guide rods (13) are connected in the through holes I in a sliding manner, the guide rods (13) move in the through holes I, and the top ends of the guide rods (13) are connected with the bottom end of the loading tray (5); a loading ball head (6) is connected to the center of the bottom of the loading tray (5), the bottom end of the loading ball head (6) is connected with a telescopic rod (14) of a loading cylinder, and the telescopic rod (14) is located in a through long hole formed in the middle of the platform (4);
the outer edge above the loading tray (5) is provided with the loading disc (8), the loading disc (8) is of a cylindrical structure with a through hole inside, and the top end of the loading disc (8) is in contact connection with the lower end face of the outer ring (10);
a through hole II is formed in the loading tray (5), a bearing tray support column (7) is connected in the through hole II in a sliding mode, and the bearing tray support column (7) slides in the through hole II; the top end of the bearing tray strut (7) is connected to the bearing tray (3) and is used for supporting the double-row tapered roller bearing; the top of the bearing tray (3) is in contact connection with the bottom of the inner ring II (12);
a rotary mandrel (1) is arranged above the double-row tapered roller bearing, and the rotary mandrel (1) is connected with an inner ring I (2) of the double-row tapered roller bearing.
2. The vertical telescopic type double row tapered roller bearing axial loading system according to claim 1, wherein the axis of the rotary mandrel (1), the axis of the double row tapered roller bearing, the axis of the telescopic rod (14) of the loading cylinder, the central axis of the bearing tray (3) and the central axis of the loading tray (5) coincide; the central axis of the guide rod (13), the central axis of the bearing tray support (7) and the axis of the rotary mandrel (1) are parallel.
3. The vertical telescopic type double row tapered roller bearing axial loading system according to claim 1 or 2, wherein in an initial state, the bottom end of the bearing tray support (7) is in contact connection with the bottom of the groove of the platform (4), so that the bearing tray (3) and the double row tapered roller bearing are kept still; under the working state, the bearing tray support (7) is in sliding connection with the loading tray (5), so that the bearing tray (3) moves downwards, the inner ring II (12) moves downwards under the action of self gravity, and the inner ring I (2) of the double-row conical bearing is separated from the middle spacing ring (9) and the inner ring II (12) at the same time.
4. The vertical telescopic type double-row tapered roller bearing axial loading system as claimed in claim 1 or 2, wherein in a working state, a shaft shoulder and an outer diameter of the rotary mandrel (1) are tightly connected with an inner ring I (2) of the double-row tapered roller bearing, and the inner ring II (12) and a spacer ring (9) are separated from contact with the inner ring I (2) due to the action of gravity, so that the measuring inner ring I (2) is ensured not to be interfered.
5. The vertical telescopic type double row tapered roller bearing axial loading system according to claim 1, wherein the upper surface of the bearing tray (3) and the upper surface of the platform (4) are on the same plane, so that the measured bearing is smoothly pushed into a position to be measured.
6. The axial loading system of the vertical telescopic type double-row tapered roller bearing as recited in claim 1, wherein the two through holes I are symmetrically arranged on the extension lines at two sides of the diameter of the through long hole and are used for being in sliding fit with the guide rod (13); the guide rod (13) is used for limiting the following rotation of the outer ring during bearing measurement and limiting the excessive inclination of the loading tray (5).
7. The vertical telescopic type double-row tapered roller bearing axial loading system according to claim 1, wherein the number of the through holes II is at least three, and the through holes II are evenly arranged on two sides of the central axis of the loading tray (5) or are evenly distributed circumferentially with the central axis of the loading tray (5) as a circular center line.
8. The axial loading system of a vertical telescopic type double-row tapered roller bearing according to claim 1, wherein the loading system performs the following functions: 1) the measured bearing is convenient to push into a measurement preparation position; 2) pushing the tested bearing into the mandrel; 3) applying an axial load to the measured bearing; 4) the inner ring I (2) of the bearing to be measured is separated from the middle spacer ring (9) and the inner ring of the bearing not to be measured; 5) and returning the tested bearing to the original position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010172400.6A CN111220384B (en) | 2020-03-12 | 2020-03-12 | Vertical telescopic type double-row tapered roller bearing axial loading system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010172400.6A CN111220384B (en) | 2020-03-12 | 2020-03-12 | Vertical telescopic type double-row tapered roller bearing axial loading system |
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| CN111220384B CN111220384B (en) | 2021-07-23 |
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| CN112378661A (en) * | 2020-10-29 | 2021-02-19 | 宁波易荣机电科技有限公司 | Cylinder block formula self-aligning roller bearing positive and negative pressure loading device |
| CN116296386A (en) * | 2023-04-04 | 2023-06-23 | 山东捷沃汽车科技有限公司 | Tapered roller bearing pressure debugging testing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111220384B (en) | 2021-07-23 |
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