CN205374057U - Online automatic correction of deviation correcting device of rim about tire dynamic balance test machine - Google Patents
Online automatic correction of deviation correcting device of rim about tire dynamic balance test machine Download PDFInfo
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- CN205374057U CN205374057U CN201620157313.2U CN201620157313U CN205374057U CN 205374057 U CN205374057 U CN 205374057U CN 201620157313 U CN201620157313 U CN 201620157313U CN 205374057 U CN205374057 U CN 205374057U
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- deviation correcting
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Abstract
The utility model discloses an online automatic correction of deviation correcting device of rim about tire dynamic balance test machine, include with the tire under wheel hub complex test main shaft and with last wheel hub complex dabber, the test main shaft drive by a servo motor, servo motor and rotary encoder link to each other, the dabber link to each other through locking mechanism and last rim elevating gear, on last rim elevating gear and last rim spindle install one and put rim circumference accurate halt detection device at zero point in, detection device at zero point, rotary encoder all link to each other with a counter, the input of counter and a controller link to each other, the output of controller through a servo control system servo motor control. The utility model discloses mechanical structure is simple, easily improves. Based on original mechanical structure, only need to increase a photoelectric switch and bar response piece.
Description
Technical field
This utility model belongs to field of measuring technique, relates to a kind of upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine.
Background technology
The separation of system unbalance mass and extraction algorithm are based on certain assumed condition: wheel rim does not misplace up and down.In Practical Project, owing to the unstable of each factor such as inflation pressure of tire, upper and lower wheel rim locking pressure, tire and the concentric clamping of wheel rim, tire bead lubricant effect acts on, often relative dislocation between upper and lower wheel rim.Once system mode changes, the size of system unbalance mass and phase place all can change therewith and then introduce measurement error, causes previous amount to demarcate influence coefficient and system unbalance mass is accurate not.Currently used most of dynamic balancer all do not have upper and lower wheel rim from dynamic(al) correction deviation correcting device and function, it is generally required to artificial manual correction after shutting down, this generates certain angular deviation.The usual structure of testing machine that small part has wheel rim calibration function is complicated, needs to carry out the Equivalent Calculation of complexity, and precision is not satisfactory between rectifying plane.A kind of wheel rim relative position monitor in real time up and down and online correction calibration strategy and device is proposed for this.
Utility model content
This utility model is in order to solve the nonsynchronous problem of upper and lower wheel rim, disclose a kind of device that the dislocation of upper and lower wheel rim can be carried out On-line automatic correction correction, solve the nonsynchronous problem of upper and lower wheel rim, ensure the stability of measurement system, demarcate influence coefficient with the system unbalance mass and amount obtaining the dynamic balancer of high-precision and high-stability, improve the accuracy of detection of test system itself.
This utility model be the technical scheme is that
A kind of upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine, including coaxial mounted upper wheel hub and lower hub, described lower hub connects a test main shaft, upper wheel hub connects a mandrel, described test main shaft is by a driven by servomotor, described servomotor is connected with rotary encoder, described mandrel is connected with upper wheel rim lifting device by a retaining mechanism, it is characterized in that: on upper wheel rim lifting device and on upper wheel rim mandrel, be provided with on a set wheel rim circumference standard stop zero-crossing detecting device, described zero-crossing detecting device, rotary encoder is all connected with an enumerator, the input of described enumerator and a controller is connected, the outfan of described controller controls servomotor by a servo-control system.
Described zero-crossing detecting device includes the inductive switch being arranged on wheel rim lifting device and the zero point sensing chip being arranged on wheel rim mandrel top, described zero point sensing chip is when retaining mechanism is in released state, and in the test process that mandrel and test main shaft rotate in a circumferential direction, it can from traverse in the middle of inductive switch；
Described inductive switch is the U-shaped inductive switch of optical fiber type.
Described zero point sensing chip and inductive switch is upper and lower is oppositely arranged.
Described controller is PLC.
Described enumerator is difference type two channel module, and it is directly installed in the main substrate slot of PLC.
Compared with prior art, the utility model has the advantages that:
(1) frame for movement is simple, it is easy to improve.Based on original frame for movement, only a photoswitch and bar shaped sensor block need to be increased.
(2) electrical control is convenient, economy and durability, it is easy to improve.Only need to configuring a high speed counting module, the data collecting system and the host computer that do not affect core link resolve the real-time that system works, and do not increase extra resolving difficulty, change less to the logical action of site technique flow process.
(3) by online automatic deviation correction in real time, solving asynchronous problem between upper and lower two wheel rims, both angular deviations can be controlled within 0.2 degree, improve the stability of dynamic balancer system itself, reduce systematic error.
(4) dislocation of upper and lower wheel rim is carried out online compensation, it is not necessary to correction of stopping, efficiency improves further.
Accompanying drawing explanation
Fig. 1 is the composition structure of upper and lower wheel rim On-line automatic correction deviation-rectifying system in this utility model embodiment.
In figure: 1 time test main shaft, wheel rim mandrel on 2,3 retaining mechanisms, the 4 U-shaped inductive switches of optical fiber type, 5 zero signals detection sensing chips, wheel rim lifting device on 6, wheel rim, 8 tires, 9 times wheel rims, 10 servomotors, 11 encoders, 12 high-speed counter modules, 13PLC control system, 14 servo-control systems on 7.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, completely describe.Obviously, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Referring to Fig. 1, it it is the composition structural representation of the dynamic balance test machine of this utility model embodiment, described dynamic balancer mechanical part specifically includes that lower test main shaft 1, upper wheel rim mandrel 2, upper wheel rim retaining mechanism 3, the U-shaped inductive switch 4 of optical fiber type, upper wheel rim circumference standard stops zero signal detection sensing chip 5, upper wheel rim lifting device 6, upper wheel rim 7, lower wheel rim 9, spindle servo electric machine 10, spindle encoder 11 (difference type), high-speed counter module 12 (two channel difference typing QD62D), programmable controller PLC controls system 13 and servo-control system 14.
Lower test main shaft 1 is driven by a servomotor 10, described servomotor 10 is connected with rotary encoder 11, upper wheel rim mandrel 2 is connected with upper wheel rim lifting device 6 by a retaining mechanism 3, on upper wheel rim lifting device 6 and on upper wheel rim mandrel, it is provided with on a set wheel rim circumference standard stops zero-crossing detecting device, zero-crossing detecting device includes the U-shaped inductive switch 4 of optical fiber type being arranged on wheel rim lifting device and the zero point sensing chip 5 being arranged on wheel rim mandrel top, zero signal detection sensing chip 5 is when retaining mechanism 3 is in released state, in the test process that mandrel and test main shaft rotate in a circumferential direction, it can from traverse in the middle of inductive switch；The U-shaped inductive switch 4 of optical fiber type, rotary encoder 11 are all connected with a high-speed counter module 12, described high-speed counter module 12 is connected with the input of a PLC control system 13, and the outfan of described PLC control system 13 controls servomotor by a servo-control system 14.
This utility model in order to realize On-line automatic correction deviation-correcting function, original dynamic balancer TT&C system basis adds the U-shaped inductive switch 4 of optical fiber type therein, on wheel rim circumference standard stop zero signal detection sensing chip 5 and high-speed counter module 12；
(1) the U-shaped inductive switch 4 of optical fiber type with high real-time and high measurement accuracy is installed on upper wheel rim lifting device 6, zero signal detection sensing chip 5 is installed on upper wheel rim mandrel 2 top, and ensure under upper wheel rim retaining mechanism released state, when in the test process that previous-next axis system rotates in a circumferential direction, this sensing chip can from traverse in the middle of the U-shaped inductive switch 4 of optical fiber type.Thus constitute one to put wheel rim circumference standard and stop zero-crossing detecting device.
(2) according to original difference type encoder type, increase by one piece of high-speed counter module (difference type two passage), be directly installed in PLC main substrate slot.Such as, the QD62D of Rhizoma Sparganii brand.The high-speed counter module 12 of configuration is respectively to upper wheel rim mandrel 2 and lower test main shaft 1 synchronous counting, when the Z pulse signal that upper wheel rim circumference standard stops zero point pulse signal and encoder 11 being detected, and reset count value.
(3), after determining that upper wheel rim circumference standard stops dead-center position and lower test main shaft circumference dead-center position, both initial count differences are recorded by high counter module 12 and PLC control system 13.
The pulse input mode of high speed counting module selected in this utility model specific embodiment has: the multiple of the multiple of single-phase 1, the multiple of single-phase 2, the multiple of 2 phases 1, the multiple of 2 phases 2 and 2 phases 4 is several.Therefore the A pulse to encoder, B pulse can be selected as required individually to count or two count simultaneously.The present embodiment adopts the multiple of 2 phases 4, so 4 times that high-speed counter individual pen count value N is encoder line number n, i.e. N=4n.
In the present embodiment, spindle encoder line number n is 1024, and high-speed counter individual pen count value N is 4096.
The wheel rim up and down of this utility model embodiment is from dynamic(al) correction method for correcting error, and specific works process is as follows:
The first step, sets the respective zero degree reference position of upper and lower wheel rim.Its operating procedure is:
(1) the lower test main shaft 1 described in adopts the Z pulse reset mode of encoder 11 to arrange initial point, and records the numerical value of N in current high-speed counter module 12 passage 11It is 20.
(2) the described U-shaped inductive switch of optical fiber type 4 and upper wheel rim circumference standard stop zero signal detection sensing chip 5 adjust to the ad-hoc location needed, record the numerical value of N in current high-speed counter module 12 passage 22It is 30.
(3) the initial angle deviation of wheel rim is up and down:
Second step, the position of the upper and lower wheel rim of monitor in real time in test process, and dislocation angle is carried out online compensation deviation.Its operating procedure is:
In test process, the high speed counting module step-by-step counting to spindle encoder.After main shaft stops the rotation, passage 1 (upper wheel rim counting channel) and the count value of passage 2 (lower wheel rim counting channel) are N1=20 and N1=60, then the actual angle deviation of wheel rim is up and downActual dislocation angle is α '=5.2734-0.8789=4.3945 (°).So controlling spindle servo electric machine to reversely rotate 4.3945 °, dislocation angle is carried out online compensation.
Detailed description of the invention of the present utility model is described in conjunction with accompanying drawing although above-mentioned; but the not restriction to this utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection domain of the present utility model.
Claims (6)
1. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine, including coaxial mounted upper wheel hub and lower hub, described lower hub connects a test main shaft, upper wheel hub connects a mandrel, described test main shaft is by a driven by servomotor, described servomotor is connected with rotary encoder, described mandrel is connected with upper wheel rim lifting device by a retaining mechanism, it is characterized in that: on upper wheel rim lifting device and on upper wheel rim mandrel, be provided with on a set wheel rim circumference standard stop zero-crossing detecting device, described zero-crossing detecting device, rotary encoder is all connected with an enumerator, the input of described enumerator and a controller is connected, the outfan of described controller controls servomotor by a servo-control system.
2. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine as claimed in claim 1, it is characterized in that, described zero-crossing detecting device includes the inductive switch being arranged on wheel rim lifting device and the zero point sensing chip being arranged on wheel rim mandrel top, described zero point sensing chip is when retaining mechanism is in released state, and in the test process that mandrel and test main shaft rotate in a circumferential direction, it can from traverse in the middle of inductive switch.
3. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine as claimed in claim 2, it is characterised in that described inductive switch is the U-shaped inductive switch of optical fiber type.
4. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine as claimed in claim 2, it is characterised in that described zero point sensing chip and inductive switch is upper and lower is oppositely arranged.
5. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine as claimed in claim 2, it is characterised in that described controller is PLC.
6. the upper and lower wheel rim On-line automatic correction deviation correcting device of dynamic balance test machine as claimed in claim 5, it is characterised in that described enumerator is difference type two channel module, and it is directly installed in the main substrate slot of PLC.
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| CN201620157313.2U CN205374057U (en) | 2016-03-02 | 2016-03-02 | Online automatic correction of deviation correcting device of rim about tire dynamic balance test machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758654A (en) * | 2016-03-02 | 2016-07-13 | 山东大学 | Online automatic correction device for upper and lower rims of tyre dynamic balancing testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758654A (en) * | 2016-03-02 | 2016-07-13 | 山东大学 | Online automatic correction device for upper and lower rims of tyre dynamic balancing testing machine |
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