CN103206936A - Constant-speed rotating and axial force control method for detecting axial protruding amount of bearing - Google Patents
Constant-speed rotating and axial force control method for detecting axial protruding amount of bearing Download PDFInfo
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- CN103206936A CN103206936A CN2013100796666A CN201310079666A CN103206936A CN 103206936 A CN103206936 A CN 103206936A CN 2013100796666 A CN2013100796666 A CN 2013100796666A CN 201310079666 A CN201310079666 A CN 201310079666A CN 103206936 A CN103206936 A CN 103206936A
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- mandrel
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Abstract
Provided is a constant-speed rotating and axial force control method for detecting axial protruding amount of a bearing. A detected bearing (9) is installed on a mandrel (10), a computer (7) sends an instruction to a controller (6) to start a brushless motor (5) so as to achieve constant-speed rotation of a worm (4), a worm gear (3), a spindle (12) and the mandrel (10) and then sends an instruction to enable a push rod (14) of a cylinder or a hydraulic cylinder (1) to move towards the right and act on a pressure sensor (11) through the spindle effect, an axial pressure signal produced by the pressure sensor is timely fed back to the computer to be compared with allowable axial force Fa of the detected bearing, and the protruding amount of the detected bearing cannot be detected until the axial pressure signal is equal to the allowable axial force Fa of the detected bearing. The constant-speed rotating and axial force control method for detecting the axial protruding amount of the bearing can achieve constant-speed rotation and exert the axial force, is very important for achieving of protruding amount detection of the detected bearing, is obvious in produced effect and effectively improves the detection accuracy of the axial protruding amount of the detected bearing.
Description
Technical field
The invention belongs to bearing detection technique field, refer more particularly to a kind of for uniform rotation and the axial force control method of bearing shaft to the detection of protrusion amount.
Background technology
Bearing contains the outer ring, inner ring and rolling body, usually the other end, outer ring is fixed and inner ring one end face is positioned and uniform rotation, under uniform rotation, inner ring one end face is applied with axial force F a allowable, the spacing other end, relative outer ring, inner ring other end of uniform rotation down at axial force F a allowable and rolling body will produce an axial displacement, the bearing shaft that claims it with the arithmetic mean of this axial displacement is to the protrusion amount, the running accuracy of the affects bearing of axial protrusion amount, axial protrusion amount causes bearing to be stuck when big and produces heavy wear, axially the protrusion amount can produce when uniform rotation than hour inner ring and axially scurry the position, axially scurries the position and causes the running accuracy of bearing to reduce.Therefore whether the actual axial load that when concrete the use inner ring one end face applied of bearing must be strict controlled in the Fa, nonetheless, also will detect bearing shaft by axial force F a allowable under uniform rotation before dispatching from the factory and adhere to specification to the protrusion amount.
Adopt measuring instrument for projection to detect the axial protrusion amount of bearing at present, there are the following problems for this measuring instrument for projection:
One, come inner ring one end face is applied axial force by pneumatic cylinder or hydraulic cylinder, this axial force can not intuitively be read out and whether meet axial force F a allowable, has influence on the accuracy that bearing shaft detects to the protrusion amount;
Two, drive inner ring by the hand rotation mandrel and rotate, the speed of manually rotating mandrel is not the uniform rotation state, and the less stable of manually rotating mandrel, has influence on the accuracy that bearing shaft detects to the protrusion amount yet.
Uniform rotation and axial force are united two into one to detect bearing shaft do not see relevant report so far to the control method of protrusion amount.
Summary of the invention
In order to address the above problem, the invention provides a kind of for uniform rotation and the axial force control method of bearing shaft to the detection of protrusion amount, this control method can realize the uniform rotation of bearing by a cover pick-up unit, and under uniform rotation, inner ring is applied the axial force that can monitor, improved the precision that bearing shaft detects to the protrusion amount, control method is simple, practical.
For achieving the above object, the present invention adopts following technical scheme:
Described for uniform rotation and the axial force control method of bearing shaft to the detection of protrusion amount, bearing shaft is shown to protruding scale: when the other end, outer ring is fixed and inner ring one end face is positioned and uniform rotation, under uniform rotation, inner ring one end face is applied with axial force F a allowable, the spacing other end, relative outer ring, inner ring other end of uniform rotation down at axial force F a allowable and rolling body will produce an axial displacement, and the arithmetic mean of this axial displacement is referred to as bearing shaft to the protrusion amount; Control method relates to a cover pick-up unit, described pick-up unit contains cylinder or hydraulic cylinder, bearing, worm gear, worm screw, brushless electric machine, controller, computing machine, display, mandrel, pressure transducer, main shaft, feather key and push rod, and control method of the present invention is as follows:
Connecting flange cover on the push rod of cylinder or hydraulic cylinder, pass through the inner nut solid bearing in the described flange cover, bearing is by an end of outer nut fixed main shaft, be socketed with mandrel in the other end polygon endoporus of main shaft, pressure sensor between the other end of main shaft and the mandrel, interlude at main shaft disposes feather key, at the interlude of main shaft worm gear is installed by feather key, worm gear and worm mesh, worm screw connects with brushless electric machine, the control lead-in wire of the lead-in wire of pressure transducer and cylinder or hydraulic cylinder connects with computing machine respectively, and the brushless electric machine via controller connects with computing machine after connecting again, and computing machine connects with display;
Be installed in measured bearing on the mandrel and make inner ring one end face of measured bearing abut against the step end of mandrel, the outer ring of measured bearing is fixed by holder and described holder withstands on the other end, outer ring, and the coincidence parallel with the central axis of mandrel and main shaft of the central axis of described holder; When computing machine starts brushless electric machine by instruction to controller, brushless electric machine rotates by worm and worm wheel drive shaft and mandrel, can realize that by computer monitoring brushless electric machine reaches at the uniform velocity state and makes main shaft and mandrel also reaches at the uniform velocity state, computing machine moves right by the push rod of instruction control cylinder or hydraulic cylinder again under described at the uniform velocity state, push rod moves right main shaft and mandrel is also moved right, main shaft does not change the relative position of worm gear and worm screw by feather key in the process that moves right, push rod moves right and can act on the pressure transducer by main shaft, the axle pressure signal IMU that pressure transducer produces is crossed described lead-in wire and is fed back in the computing machine, computing machine is converted to instant axial force by the program that sets in advance with described axle pressure signal, the measured bearing axial force F a allowable of described instant axial force and computer stored compares, described instant axial force can not＞measured bearing axial force F a allowable, otherwise measured bearing will be damaged, when described instant axial force increases the thrust that push rod moves right gradually by computing machine during less than measured bearing axial force F a allowable, just can detect axially protrusion amount of measured bearing when described instant axial force equals measured bearing axial force F a allowable, the measured value that brushless electric machine reaches the rotating speed of state at the uniform velocity and described instant axial force feeds back to display by computing machine and carries out instant playback.
Fixing bearing or four-point contact ball in the flange cover described above, or pairing angular contact ball bearing, or pairing taper roll bearing.
Owing to adopt technical scheme as mentioned above, the present invention produces following good effect:
1, control method of the present invention can realize the uniform rotation of measured bearing by a cover pick-up unit, and the inner ring to measured bearing applies the axial force that can monitor under uniform rotation, improved the axially accuracy of detection of protrusion amount of measured bearing, simple, practical characteristics that control method has.
2, pick-up unit of the present invention both can be realized uniform rotation, can realize applying axial force again, this is very important to realizing that measured bearing detects axial protrusion amount, thoroughly solved the existing problem of background technology, its effect is apparent, has effectively improved the axially accuracy of detection of protrusion amount of measured bearing.
3, the rotation of main shaft worm gear → worm screw → brushless electric machine of relying on feather key to connect realizes that the program that the uniform rotation of main shaft then relies on computing machine to set is controlled brushless electric machine and realized.
Description of drawings
Fig. 1 is control method simplified schematic diagram of the present invention;
Among Fig. 1: 1-cylinder or hydraulic cylinder; The 2-bearing; The 3-worm gear; The 4-worm screw; The 5-brushless electric machine; The 6-controller; The 7-computing machine; The 8-display; The 9-measured bearing; The 10-mandrel; The 11-pressure transducer; The 12-main shaft; The 13-feather key; The 14-push rod.
Embodiment
The present invention is a kind of for uniform rotation and the axial force control method of bearing shaft to the detection of protrusion amount, control method of the present invention can realize the uniform rotation of measured bearing by a cover pick-up unit, and the inner ring to measured bearing applies the axial force that can monitor under uniform rotation, improved the axially accuracy of detection of protrusion amount of measured bearing, simple, practical characteristics that control method has.
The axial protrusion scale of bearing shows: when the other end, outer ring is fixed and inner ring one end face is positioned and uniform rotation, refer to the right side of outer ring and inner ring in conjunction with the described other end of Fig. 1, and a described end face refers to the left side of outer ring and inner ring, below identical.Under uniform rotation, inner ring one end face is applied with axial force F a allowable, the spacing other end, relative outer ring, inner ring other end of uniform rotation down at axial force F a allowable and rolling body will produce an axial displacement, and the arithmetic mean of this axial displacement is referred to as bearing shaft to the protrusion amount.How the axial protrusion amount that the present invention does not study measured bearing detects, because bearing shaft has been known in the field to the detection of protrusion amount, the present invention only studies the uniform rotation that how to realize measured bearing and how measured bearing is applied the instant axial force control method that equals axial force F a allowable under uniform rotation, and the axial force F a allowable of measured bearing 9 stores for future use in computing machine 7.
Can explain the present invention in more detail by the following examples, the present invention is not limited to the following examples, discloses purpose of the present invention and is intended to protect all changes and improvements in the scope of the invention.
In conjunction with Fig. 1, control method of the present invention relates to a cover pick-up unit, and described pick-up unit contains cylinder or hydraulic cylinder 1, bearing 2, worm gear 3, worm screw 4, brushless electric machine 5, controller 6, computing machine 7, display 8, mandrel 10, pressure transducer 11, main shaft 12, feather key 13 and push rod 14.
In described pick-up unit:
Connecting flange cover on the push rod 14 of cylinder or hydraulic cylinder 1, pass through inner nut solid bearing 2 in the described flange cover, bearing 2 is by an end of outer nut fixed main shaft 12, be socketed with mandrel 10 in the other end polygon endoporus of main shaft 12, be called a described end and its right-hand member is called the described other end in conjunction with the left end of Fig. 1 main shaft, described polygon endoporus is based on positive cubic endoporus, pressure sensor 11 between the other end of main shaft 12 and the mandrel 10, interlude configuration feather key 13 at main shaft 12, at the interlude of main shaft 12 worm gear 3 is installed by feather key 13, worm gear 3 and worm screw 4 engagements, worm screw 4 connects with brushless electric machine 5, the control lead-in wire of the lead-in wire of pressure transducer 11 and cylinder or hydraulic cylinder 1 connects with computing machine 7 respectively, connects with computing machine 7 after brushless electric machine 5 via controllers 6 connect again, and computing machine 7 connects with display 8.
Above-mentioned is the basic configuration situation of described pick-up unit, can obviously find out:
The push rod 14 of cylinder or hydraulic cylinder 1 can realize that main shaft 12 → mandrel 10 applies axial force by its axis method move left and right and to measured bearing 9, the axial force size that measured bearing 9 is applied can feed back in the computing machine 7 by pressure transducer 11 compares, when main shaft 12 uniform rotation, can realize the move left and right of main shaft 12 by feather key 13, main shaft 12 does not influence the uniform rotation of worm gear 3 in the move left and right process, do not change the relative position of worm gear 3 → worm screw 4 → brushless electric machine 5 yet, so described pick-up unit both can be realized uniform rotation, can realize applying axial force again, this is very important to realizing that measured bearing 9 detects axial protrusion amount, thoroughly solved the existing problem of background technology, its effect is apparent, has effectively improved the accuracy of detection of measured bearing 9 axial protrusion amounts.
Fixing bearing 2 or four-point contact ball in the flange cover described above, or pairing angular contact ball bearing, or the pairing taper roll bearing, these bearings are bearing radial force and bi-directional axial power simultaneously, and the push rod 14 of cylinder or hydraulic cylinder 1 does not rotate can realize that main shaft 12 at the uniform velocity rotates the time.
The data processor of computing machine 7 also can adopt PLC to carry out data and handle, and the data processor that control method according to the present invention arranges computing machine 7 is not difficult matter to those of ordinary skills.
Be installed in measured bearing 9 on the mandrel 10 and make inner ring one end face of measured bearing 9 abut against the step end of mandrel, the outer ring of measured bearing 9 is fixed by holder and described holder withstands on the other end, outer ring, and the coincidence parallel with the central axis of mandrel 10 and main shaft 12 of the central axis of described holder, this illustrates that also the cylinder or hydraulic cylinder 1 central axis that are fixed also will parallel and coincidences with the central axis of described holder.
When computing machine 7 starts brushless electric machine 5 for controller 6 by instruction, brushless electric machine 5 is by worm screw 4 and worm gear 3 drive shaft 12 and mandrel 10 rotations, can realize that by computing machine 7 monitoring brushless electric machine 5 reaches at the uniform velocity state and makes main shaft 12 and mandrel 10 also reaches at the uniform velocity state, computing machine 7 moves right by the push rod 14 of instruction control cylinder or hydraulic cylinder 1 again under described at the uniform velocity state, push rod 14 moves right main shaft 12 and mandrel 10 is also moved right, main shaft 12 does not change the relative position of worm gear 3 and worm screw 4 by feather key 13 in the process that moves right, push rod 14 moves right and can act on the pressure transducer 11 by main shaft 12, the axle pressure signal IMU that pressure transducer 11 produces is crossed described lead-in wire and is fed back in the computing machine 7, computing machine 7 is converted to instant axial force by the program that sets in advance with described axle pressure signal, the measured bearing 9 axial force F a allowable that described instant axial force and computing machine 7 store compare, described instant axial force can not＞measured bearing axial force F a allowable, otherwise measured bearing 9 will be damaged, when described instant axial force increases the thrust that push rod 14 moves right gradually by computing machine 7 during less than measured bearing axial force F a allowable, when equaling measured bearing axial force F a allowable, described instant axial force just can detect axially protrusion amount of measured bearing, the measured value that brushless electric machine 5 reaches the rotating speed of state at the uniform velocity and described instant axial force feeds back to display 8 by computing machine 7 and carries out instant playback, and operating personnel can monitor the duty of described pick-up unit in real time by display 8 and revise by computing machine 7.
The embodiment that selects for use in this article in order to disclose purpose of the present invention currently thinks to suit, but will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the interior embodiment of this design and the scope of the invention.
Claims (2)
1. be used for uniform rotation and the axial force control method that bearing shaft detects to the protrusion amount, bearing shaft is shown to protruding scale: when the other end, outer ring is fixed and inner ring one end face is positioned and uniform rotation, under uniform rotation, inner ring one end face is applied with axial force F a allowable, the spacing other end, relative outer ring, inner ring other end of uniform rotation down at axial force F a allowable and rolling body will produce an axial displacement, and the arithmetic mean of this axial displacement is referred to as bearing shaft to the protrusion amount; Control method relates to a cover pick-up unit, described pick-up unit contains cylinder or hydraulic cylinder (1), bearing (2), worm gear (3), worm screw (4), brushless electric machine (5), controller (6), computing machine (7), display (8), mandrel (10), pressure transducer (11), main shaft (12), feather key (13) and push rod (14), it is characterized in that: the push rod (14) of cylinder or hydraulic cylinder (1) is gone up the connecting flange cover, pass through inner nut solid bearing (2) in the described flange cover, bearing (2) is by an end of outer nut fixed main shaft (12), be socketed with mandrel (10) in the other end polygon endoporus of main shaft (12), pressure sensor (11) between the other end of main shaft (12) and the mandrel (10), interlude at main shaft (12) disposes feather key (13), at the interlude of main shaft (12) worm gear (3) is installed by feather key (13), worm gear (3) and worm screw (4) engagement, worm screw (4) connects with brushless electric machine (5), the control lead-in wire of the lead-in wire of pressure transducer (11) and cylinder or hydraulic cylinder (1) connects with computing machine (7) respectively, brushless electric machine (5) via controller (6) connects with computing machine (7) after connecting again, and computing machine (7) connects with display (8); Measured bearing (9) is installed in mandrel (10) goes up and makes inner ring one end face of measured bearing (9) to abut against the step end of mandrel (10), the outer ring of measured bearing (9) is fixed by holder and described holder withstands on the other end, outer ring, and the coincidence parallel with the central axis of mandrel (10) and main shaft (12) of the central axis of described holder; When computing machine (7) starts brushless electric machine (5) for controller (6) by instruction, brushless electric machine (5) is by worm screw (4) and worm gear (3) drive shaft (12) and mandrel (10) rotation, can realize that by computing machine (7) monitoring brushless electric machine (5) reaches at the uniform velocity state and makes main shaft (12) and mandrel (10) also reaches at the uniform velocity state, computing machine (7) moves right by the push rod (14) of instruction control cylinder or hydraulic cylinder (1) again under described at the uniform velocity state, push rod (14) moves right main shaft (12) and mandrel (10) is also moved right, main shaft (12) does not change the relative position of worm gear (3) and worm screw (4) by feather key (13) in the process that moves right, push rod (14) moves right and can act on the pressure transducer (11) by main shaft (12), the axle pressure signal IMU that pressure transducer (11) produces is crossed described lead-in wire and is fed back in the computing machine (7), computing machine (7) is converted to instant axial force by the program that sets in advance with described axle pressure signal, measured bearing (9) the axial force F a allowable that described instant axial force and computing machine (7) store compares, described instant axial force can not＞measured bearing axial force F a allowable, otherwise measured bearing (9) will be damaged, when described instant axial force increases the thrust that push rod moves right gradually by computing machine (7) during less than measured bearing axial force F a allowable, just can detect axially protrusion amount of measured bearing (9) when described instant axial force equals measured bearing (9) axial force F a allowable, the measured value that brushless electric machine (5) reaches the rotating speed of state at the uniform velocity and described instant axial force feeds back to display (8) by computing machine (7) and carries out instant playback.
2. described for uniform rotation and the axial force control method of bearing shaft to the detection of protrusion amount according to claim 1, it is characterized in that: fixing bearing (2) or four-point contact ball in the described flange cover, or pairing angular contact ball bearing, or pairing taper roll bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079666.6A CN103206936B (en) | 2013-03-13 | 2013-03-13 | For bearing shaft to the uniform rotation of Projection Measure and axial force control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079666.6A CN103206936B (en) | 2013-03-13 | 2013-03-13 | For bearing shaft to the uniform rotation of Projection Measure and axial force control method |
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| CN103206936A true CN103206936A (en) | 2013-07-17 |
| CN103206936B CN103206936B (en) | 2015-08-05 |
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| CN201310079666.6A Active CN103206936B (en) | 2013-03-13 | 2013-03-13 | For bearing shaft to the uniform rotation of Projection Measure and axial force control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154841A (en) * | 2014-08-20 | 2014-11-19 | 无锡市第二轴承有限公司 | Universal paired bearing load projection measuring instrument |
| CN112401776A (en) * | 2019-08-21 | 2021-02-26 | 松下知识产权经营株式会社 | Self-propelled robot |
| CN118670319A (en) * | 2024-08-21 | 2024-09-20 | 常州市乐非机电有限公司 | Motor end cover detection equipment and detection method |
| CN118670319B (en) * | 2024-08-21 | 2024-10-29 | 常州市乐非机电有限公司 | Motor end cover detection equipment and detection method |
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| GB2305728A (en) * | 1995-09-26 | 1997-04-16 | Daido Metal Co | Measuring apparatus for measuring a bearing height of a plain bearing half |
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| CN201285268Y (en) * | 2008-10-30 | 2009-08-05 | 洛阳轴研科技股份有限公司 | Bearing projection measuring apparatus with preload smaller than 10N |
| KR20090088722A (en) * | 2008-02-15 | 2009-08-20 | (주)삼호정기 | Inspection apparatus for gear's shape |
| CN101749993A (en) * | 2008-12-08 | 2010-06-23 | 哈尔滨轴承集团公司 | Detecting instrument for protruding and denting values of angular contact bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2305728A (en) * | 1995-09-26 | 1997-04-16 | Daido Metal Co | Measuring apparatus for measuring a bearing height of a plain bearing half |
| JP2001330031A (en) * | 2000-05-24 | 2001-11-30 | Nsk Ltd | Rolling bearing device and method of determining pre- load thereof |
| CN201093975Y (en) * | 2007-08-17 | 2008-07-30 | 上海莱必泰数控机床股份有限公司 | Device for measuring bearing end face project size |
| KR20090088722A (en) * | 2008-02-15 | 2009-08-20 | (주)삼호정기 | Inspection apparatus for gear's shape |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154841A (en) * | 2014-08-20 | 2014-11-19 | 无锡市第二轴承有限公司 | Universal paired bearing load projection measuring instrument |
| CN112401776A (en) * | 2019-08-21 | 2021-02-26 | 松下知识产权经营株式会社 | Self-propelled robot |
| CN112401776B (en) * | 2019-08-21 | 2023-11-17 | 松下知识产权经营株式会社 | self-propelled robot |
| CN118670319A (en) * | 2024-08-21 | 2024-09-20 | 常州市乐非机电有限公司 | Motor end cover detection equipment and detection method |
| CN118670319B (en) * | 2024-08-21 | 2024-10-29 | 常州市乐非机电有限公司 | Motor end cover detection equipment and detection method |
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| CN103206936B (en) | 2015-08-05 |
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Effective date of registration: 20180510 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: Luoyang Bearing Research Institute Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang |
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