CN207349400U - A kind of web-type column gear transmission piezo-electric vibration reduction transmission device - Google Patents
A kind of web-type column gear transmission piezo-electric vibration reduction transmission device Download PDFInfo
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- CN207349400U CN207349400U CN201720271300.2U CN201720271300U CN207349400U CN 207349400 U CN207349400 U CN 207349400U CN 201720271300 U CN201720271300 U CN 201720271300U CN 207349400 U CN207349400 U CN 207349400U
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- magnetic field
- gear
- web
- speed shaft
- piezoelectric ring
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Abstract
The utility model discloses a kind of web-type column gear transmission piezo-electric vibration reduction transmission device, including high speed shaft, pinion gear, rolling bearing, gear wheel, slow-speed shaft, support base, magnetic field pedestal, piezoelectric ring, brush, commutator segment, winding coil, magnetic pole, coil brace, sliding bearing and babinet, magnetic field pedestal is fixedly connected with slow-speed shaft, magnetic pole wedging is on the base cavity inner wall of magnetic field, brush is connected firmly by screw thread and magnetic field pedestal, support base opposite case is fixed, two commutator segments and winding coil are connected on coil brace, and it is not turned on coil brace, coil brace one end is fixed on support base, piezoelectric ring is bonded in by adhesive on the wheel rim of gear wheel web both sides.The utility model can be adjusted the deformation of piezoelectric ring in real time, control gear-driven mesh stiffness, effectively be lifted gear-driven accuracy and stability using the speed positive feedback control of voltage constant DP control and polarizing voltage.
Description
Technical field
It the utility model is related to web-type gear drive vibration damping control technology field, more particularly to a kind of web-type Cylinder Gear
Take turns drive piezo vibration damping transmission device.
Background technology
Gear is one of crucial original paper of many smart powers and torque drive machinery, since its transmission stability is good, smart
Degree is high, is widely used in automobile, steamer, aviation, navigation, the power transmission such as produce lathes.In high-power transmission, gear
Structure size is very big, and weight is also larger, it is difficult to ensure that manufacture, installation accuracy, therefore due to mesh vibration, tooth profile error, bias
Harmonic vibration caused by being disturbed with elastic deformation can cause to be difficult to vibration and the noise received in gear drive, can be direct when serious
The service life and transmission performance for causing transmission system decline.The tooth used especially for aviation, navigation and robot industry
Wheel, mitigates the main target that quality is design, and web-type gear has relatively thin wheel rim and web, can effectively reduce and is
The quality of system, reduces gear-driven inertia force, but flange thickness it is smaller easily cause engagement gear teeth facewidth Direction distortion compared with
Greatly, cause mesh stiffness to decline, directly affect gear-driven accuracy and stability.
Utility model content
To solve the above problem present in the prior art and actual conditions, the utility model provides a kind of web-type circle
Column gear transmission piezo-electric vibration reduction transmission device, including high speed shaft, pinion gear, rolling bearing, gear wheel, slow-speed shaft, support base, magnetic
Pedestal, piezoelectric ring, brush, commutator segment, winding coil, magnetic pole, coil brace, sliding bearing and babinet, on the high speed shaft
Equipped with pinion gear, the slow-speed shaft is equipped with gear wheel, the pinion gear and gear wheel engaged transmission；Magnetic field pedestal and slow-speed shaft
It is fixedly connected, on the base cavity inner wall of magnetic field, brush is connected firmly by screw thread and magnetic field pedestal for magnetic pole wedging, the two keeps insulation
It is not turned on；Support base opposite case is fixed, its inner cylinder face installation bearing, high speed shaft and slow-speed shaft are realized by bearing and babinet
Dynamic connection；Two commutator segments and winding coil are connected on coil brace, and are not turned on coil brace, and coil brace one end is fixed
On support base, two output terminal of winding coil and two commutator segments are affixed, and the brush is contacted when rotating with commutator segment；Piezoelectricity
Ring is bonded in by adhesive on the wheel rim of gear wheel web both sides, is not turned on gear wheel, and cylindrical surface passes through inside and outside piezoelectric ring
Conducting wire is connected with control circuit output voltage end, and piezoelectric ring is designed using radial polarised；Brush output voltage uses constant voltage control
System, the polarizing voltage of piezoelectric ring are controlled using closed loop location positive feedback, and the control circuit of the two is encapsulated on the pedestal of magnetic field；Brush
It is connected between constant voltage control circuit, between constant voltage control circuit and polarizing voltage control circuit using conducting wire, there is provided pressure
Electric ring controls voltage.
Preferably, the piezo-electric vibration reduction transmission device is additionally provided with magnetic field pedestal end cap, one end of the magnetic field pedestal end cap
It is connected with screw with magnetic field pedestal, inner cylinder face is coupled by sliding bearing with support base.
Preferably, magnetic field pedestal is coupled by screw thread with slow-speed shaft, locking by locked spacer.
Preferably, the piezoelectricity sample circuit of the piezoelectric ring includes the first operational amplifier A1, capacitance C, input voltage source
V, voltage source vs, the second operational amplifier A2, resistance R10、R20, controller, first operational amplifier A1Anti-phase input
End is connected to the first connecting pin of piezoelectric ring by capacitance C；Sun of first connecting pin of the piezoelectric ring also with input voltage source v
Extreme connection, the cathode terminal of the input voltage source v are connected with ground terminal；
First operational amplifier A1Output terminal and voltage source vsCathode connection；
Voltage source vsAnode and the second operational amplifier A2Output terminal connection；A2The anti-phase input of operational amplifier
End is connected with the second connection end of piezoelectric ring；
Resistance R10It is connected to the first operational amplifier A1Between inverting input and output terminal, resistance R20It is connected to the second fortune
Calculate amplifier A2Between inverting input and output terminal；
Input voltage source v and voltage source vsIt is connected respectively with controller.
Preferably, the controller is positive position feedback controller, its piezoelectric excitation ring transmission function is,
The transmission function of disturbance is：
WhereiniIt is mode sequence number,It is the vector of m × 1, m is the quantity of perturbation action, subscript " ' " represent transposition,、WithIs represented respectivelyiFrequency, damping ratios and the Mode Shape product of a mode, N are the total mode of structure
Number, its positive position feedback function are：
According to the needs of control modal vibration, the mode number n of positive position feedback control can increase therewith, compensate frequency
With the intrinsic frequency of systemIt is identical, compensation dampingDifferent from system damping, can be set according to design requirement；
The feedback channel includes compensator TF, its transmission function is：
Wherein R1And R2For resistance, C1And C2For capacitance.
Preferably, the compensator includes compensator control circuit, resistance R1With resistance C1Form parallel circuit, it is described simultaneously
Connection circuit on one side be connected with normal phase input end, the other end of parallel circuit and successively with resistance R2, capacitance C2It is connected to after series connection anti-
Phase input terminal；The R2With capacitance C2Branch one end of the series connection of composition is connected with positive output end, the R2With capacitance C2As
The series arm other end of composition is connected with reversed-phase output.
The utility model lays piezoelectric in wheel rim, changes the radial deformation of wheel rim by control input voltage, ensures
The reliability of transmission.Since the rotation of gear and transmission shaft make it that external input voltage is relatively difficult, the utility model utilizes hair
The principle of motor, is rotated synchronously by magnetic field and transmission shaft, and winding coil is fixed, so that coil cutting magnetic line movement is produced,
Control voltage is produced, is controlled using the speed positive feedback of voltage constant DP control and polarizing voltage, piezoelectric ring can be adjusted in real time
Deformation, controls gear-driven mesh stiffness, effectively lifts gear-driven accuracy and stability.
Web-type column gear transmission piezo-electric vibration reduction transmission device disclosed in the utility model embodiment, in magnetic pole with low speed
When axis rotates, rotation of the magnetic field relative to winding coil is realized, winding coil cutting magnetic line produces electric current, and electric current is conducted to commutation
Piece, electric current is drawn, form the DC power supply electrode continuously transmitted, passed output voltage by conducting wire by continuous rotate of brush
Constant voltage control circuit and polarizing voltage control circuit are directed at, it is defeated by controlling in real time eventually as the input voltage of piezoelectric ring
Enter voltage, the radial strain of rational gear wheel is obtained using the inverse piezoelectric principle of piezoelectric ring, so as to control gear wheel and small tooth
The mesh stiffness of wheel, controls gear-driven vibration damping with reaching.This method has been overturned conventional electric generators magnetic field fixed coil and has been turned
Dynamic theory, produces piezoelectric ring control voltage using gear-driven rotary motion, avoids and control electricity by transmission external input
The trouble of pressure；By the active control to web-type gear drive mesh stiffness, the gear-driven application of web-type can be expanded
Field.
Brief description of the drawings
Fig. 1 is the structural representation of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Figure.
Fig. 2 is the generator unit of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Structure diagram.
Fig. 3 is the magnetic field pedestal of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Structure diagram.
Fig. 4 is the magnetic field base end of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
The structure diagram of lid.
Fig. 5 is the knot of the piezoelectric ring of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Structure schematic diagram.
Fig. 6 is the coil brace of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Structure diagram.
Fig. 7 is the knot of the support base of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Structure schematic diagram.
Fig. 8 is the piezoelectric ring sensing of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
The circuit diagram of exciting circuit.
Fig. 9 is the controller principle of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
Figure.
Figure 10 is the compensator control of the web-type column gear transmission piezo-electric vibration reduction transmission device of the utility model embodiment
The circuit diagram of circuit processed.
Embodiment
Technical solutions of the utility model are discussed in detail below in conjunction with the accompanying drawings.
As shown in figs. 1-7, the embodiment of the utility model discloses a kind of web-type column gear transmission piezo-electric vibration reduction and passes
Dynamic device, including high speed shaft 1, pinion gear 2, rolling bearing 3, gear wheel 4, slow-speed shaft 5, support base 6, magnetic field pedestal end cap 7, magnetic
Field pedestal 8, piezoelectric ring 9, brush 10, commutator segment 11, winding coil 12, magnetic pole 13, coil brace 14, sliding bearing 15 and babinet
16, the high speed shaft 1 is equipped with pinion gear 2, and the slow-speed shaft 5 is equipped with gear wheel 4, by between gear wheel 4 and pinion gear 2
Gear pair transmission drive the rotation of high speed shaft 1 and slow-speed shaft 5, magnetic field pedestal 8 is coupled by screw thread with slow-speed shaft 5, by stopping
Mobile gasket is locking, and guarantee is rotated synchronously with slow-speed shaft 5；13 wedging of magnetic pole is on 8 cavity inner wall of magnetic field pedestal, magnetic field pedestal end cap
7 one end screw is connected with magnetic field pedestal 8, and to ensure the reliability of magnetic field rotation, pedestal end cap 7 inner cylinder face in magnetic field passes through
Sliding bearing 15 couples with support base 6, ensures that the reliable of 13 building block of magnetic field pedestal end cap 7, magnetic field pedestal 8 and magnetic pole turns
It is dynamic；Brush 10 is connected firmly by screw thread and magnetic field pedestal 8, the two keeps insulation to be not turned on；6 opposite case 16 of support base is fixed, its
Inner cylinder face installs bearing 3, high speed shaft 1 and slow-speed shaft 5 and realizes dynamic connection by bearing 3 and babinet 16；Two commutator segments 11 and around
Group coil 12 is connected on coil brace 14, and is not turned on coil brace 14, and 14 one end of coil brace is fixed on support base 6
On, do not contacted between two commutator segments 11 and with slow-speed shaft 5, winding coil 12 is not also contacted with slow-speed shaft 5, its two output terminal and two
A commutator segment 11 is affixed, and the brush 10 is contacted when rotating with commutator segment 11；Piezoelectric ring 9 is bonded in gear wheel by adhesive
On the wheel rim of 4 web both sides, it is not turned on gear wheel 4, cylindrical surface passes through conducting wire and control circuit output voltage inside and outside piezoelectric ring 9
End is connected, and piezoelectric ring 9 is designed using radial polarised；10 output voltage of brush is controlled using constant voltage, the polarizing voltage of piezoelectric ring 9
Controlled using closed loop location positive feedback, the control circuit of the two is encapsulated on magnetic field pedestal 8.Rotated in magnetic pole 13 with slow-speed shaft 5
When, realize rotation of the magnetic field relative to winding coil 12,12 cutting magnetic line of winding coil produces electric current, and electric current is conducted to commutator segment
11, electric current is drawn by continuous rotate of brush 10, forms the DC power supply electrode continuously transmitted, by conducting wire by output voltage
Conduction is to constant voltage control circuit and polarizing voltage control circuit, eventually as the input voltage of piezoelectric ring 9, by controlling in real time
Input voltage, the inverse piezoelectric principle of piezoelectric ring 9 obtains the radial strain of rational gear wheel 4, so as to control nibbling for gear 4 and 2
Rigidity is closed, gear-driven vibration damping is controlled with reaching.
In the present embodiment, gear 4 and pinion gear 2 are coupled with slow-speed shaft 5 and high speed shaft 1 respectively using key；Slow-speed shaft 5 and height
Fast 1 both ends of axis are supported using bearing 3；The axial direction of gear and bearing is respectively by the shaft shoulder, collar, sleeve and screw thread reliable location, case
Body both sides are positioned using bearing (ball) cover.
In order to avoid increasing sensing element in the rim of gear, reduce the structure of transmission system, adopting shown in Fig. 8 can be used
Sample circuit, the control circuit can ensure to be used as excitation and sensing elements during piezoelectric ring.
As shown in figure 8, vsThe voltage produced by gear and piezoelectric ring coupling deformation is subtracted for input voltage v, its
It is directly proportional to the strain of piezoelectric ring, as feedback signal.
Wherein resistance R10=R20=R, vpThe voltage produced for piezoelectric ring inverse piezoelectric effect, CpFor the capacitance of piezoelectric ring, C is electricity
Hold, s is the laplace transform parameter of time t.
Controller is controlled using positive position feedback, its schematic diagram is as shown in Figure 9：
Wherein piezoelectric excitation ring transmission functionIt can be expressed as：
The transmission function of disturbance is：
WhereiniIt is mode sequence number, FnFor gear teeth active force,It is the vector of m × 1, m is the quantity of perturbation action,
Subscript " ' " represents transposition,、WithIs represented respectivelyiFrequency, damping ratios and the Mode Shape product of a mode, N
For the total mode number of structure, its positive position feedback function can be expressed as：
According to the needs of control modal vibration, the mode number n of positive position feedback control can increase therewith, compensate frequency
With the intrinsic frequency of systemIt is identical, compensation dampingDifferent from system damping, can be set according to design requirement.
There is delay since control circuit calculates, and filtering can cause the lag or lead of control signal phase,
The validity of vibration damping control is influenced, in order to ensure the reliability of closed-loop control, adds compensator TF in the controls, it is passed
Delivery function is：
Wherein R1And R2For resistance, C1And C2It is as shown in Figure 10 for capacitance, compensator control circuit.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Carry out equivalent substitution.Where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of web-type column gear transmission piezo-electric vibration reduction transmission device, it is characterised in that including high speed shaft, pinion gear, rolling
Dynamic bearing, gear wheel, slow-speed shaft, support base, magnetic field pedestal, piezoelectric ring, brush, commutator segment, winding coil, magnetic pole, coil branch
Frame, sliding bearing and babinet, the high speed shaft are equipped with pinion gear, and the slow-speed shaft is equipped with gear wheel, the pinion gear and
Gear wheel engaged transmission；Magnetic field pedestal is fixedly connected with slow-speed shaft, and on the base cavity inner wall of magnetic field, brush passes through for magnetic pole wedging
Screw thread is connected firmly with magnetic field pedestal, the two keeps insulation to be not turned on；Support base opposite case is fixed, its inner cylinder face installation bearing,
High speed shaft and slow-speed shaft realize dynamic connection by bearing and babinet；Two commutator segments and winding coil are connected on coil brace, and
It is not turned on coil brace, coil brace one end is fixed on support base, and two output terminal of winding coil and two commutator segments are affixed,
The brush is contacted when rotating with commutator segment；Piezoelectric ring is bonded in by adhesive on the wheel rim of gear wheel web both sides, with
Gear wheel is not turned on, and cylindrical surface is connected by conducting wire with control circuit output voltage end inside and outside piezoelectric ring, and piezoelectric ring is using radially
Polarization design；Brush output voltage is controlled using constant voltage, and the polarizing voltage of piezoelectric ring is controlled using closed loop location positive feedback, and two
The control circuit of person is encapsulated on the pedestal of magnetic field；Between brush and constant voltage control circuit, constant voltage control circuit with polarization electricity
Connected between pressure control circuit using conducting wire, there is provided piezoelectric ring controls voltage.
2. web-type column gear transmission piezo-electric vibration reduction transmission device according to claim 1, it is characterised in that the pressure
Electric vibration damping transmission device is additionally provided with magnetic field pedestal end cap, and one end of the magnetic field pedestal end cap is connected with screw with magnetic field pedestal,
Inner cylinder face is coupled by sliding bearing with support base.
3. web-type column gear transmission piezo-electric vibration reduction transmission device according to claim 1, it is characterised in that magnetic field base
Seat is coupled by screw thread with slow-speed shaft, locking by locked spacer.
4. web-type column gear transmission piezo-electric vibration reduction transmission device according to claim 1, it is characterised in that the pressure
The piezoelectricity sample circuit of electric ring includes the first operational amplifier A1, capacitance C, input voltage source v, voltage source vs, the second operation amplifier
The A of device2, resistance R10、R20, controller, first operational amplifier A1Inverting input piezoelectric ring is connected to by capacitance C
The first connecting pin；Anode tap of first connecting pin of the piezoelectric ring also with input voltage source v is connected, the input voltage source
The cathode terminal of v is connected with ground terminal；
First operational amplifier A1Output terminal and voltage source vsCathode connection；
Voltage source vsAnode and the second operational amplifier A2Output terminal connection；A2The inverting input of operational amplifier with
The second connection end connection of piezoelectric ring；
Resistance R10It is connected to the first operational amplifier A1Between inverting input and output terminal, resistance R20The second computing is connected to put
Big device A2Between inverting input and output terminal；
Input voltage source v and voltage source vsIt is connected respectively with controller.
5. web-type column gear transmission piezo-electric vibration reduction transmission device according to claim 4, it is characterised in that the control
Device processed is positive position feedback controller, its piezoelectric excitation ring transmission function is,
The transmission function of disturbance is：
WhereiniIt is mode sequence number,It is the vector of m × 1, m is the quantity of perturbation action, subscript " ' " represent transposition,、WithIs represented respectivelyiFrequency, damping ratios and the Mode Shape product of a mode, N are the total mode number of structure, its
Positive position feedback function is：
According to the needs of control modal vibration, the mode number n of positive position feedback control can increase therewith, compensate frequencyWith being
The intrinsic frequency of systemIt is identical, compensation dampingDifferent from system damping, can be set according to design requirement；
The feedback channel includes compensator TF, its transmission function is：
Wherein R1And R2For resistance, C1And C2For capacitance.
6. web-type column gear transmission piezo-electric vibration reduction transmission device according to claim 5, it is characterised in that the benefit
Repaying device includes compensator control circuit, resistance R1With resistance C1Form parallel circuit, described parallel circuit one end and normal phase input end
Connection, the other end of parallel circuit with successively with resistance R2, capacitance C2Inverting input is connected to after series connection；The R2And capacitance
C2Branch one end of the series connection of composition is connected with positive output end, the R2With capacitance C2The series arm other end as composition
It is connected with reversed-phase output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271300.2U CN207349400U (en) | 2017-03-20 | 2017-03-20 | A kind of web-type column gear transmission piezo-electric vibration reduction transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720271300.2U CN207349400U (en) | 2017-03-20 | 2017-03-20 | A kind of web-type column gear transmission piezo-electric vibration reduction transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207349400U true CN207349400U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720271300.2U Expired - Fee Related CN207349400U (en) | 2017-03-20 | 2017-03-20 | A kind of web-type column gear transmission piezo-electric vibration reduction transmission device |
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| CN (1) | CN207349400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884966A (en) * | 2017-03-20 | 2017-06-23 | 兰州交通大学 | A kind of web-type column gear transmission piezo-electric vibration reduction transmission device and vibration-reducing control method |
-
2017
- 2017-03-20 CN CN201720271300.2U patent/CN207349400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884966A (en) * | 2017-03-20 | 2017-06-23 | 兰州交通大学 | A kind of web-type column gear transmission piezo-electric vibration reduction transmission device and vibration-reducing control method |
| CN106884966B (en) * | 2017-03-20 | 2023-09-05 | 兰州交通大学 | Web type cylindrical gear transmission piezoelectric vibration reduction transmission device and vibration reduction control method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |