CN108593319B - A kind of disk-type friction loading system and method - Google Patents
A kind of disk-type friction loading system and method Download PDFInfo
- Publication number
- CN108593319B CN108593319B CN201810238409.5A CN201810238409A CN108593319B CN 108593319 B CN108593319 B CN 108593319B CN 201810238409 A CN201810238409 A CN 201810238409A CN 108593319 B CN108593319 B CN 108593319B
- Authority
- CN
- China
- Prior art keywords
- friction
- friction plate
- pressure
- disk
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
Abstract
The invention discloses a kind of disk-type friction loading system and methods, including friction-loaded main shaft device, transmission device, base, pressure sensor, pressure closed loop control device and power drive unit；Friction-loaded main shaft device includes shaft, frictional disk, clamp and friction plate；Frictional disk is mounted in shaft；The two sides of clamp are separately installed with the friction plate being arranged symmetrically, and friction plate contacts with each other with frictional disk；Frictional disk two sides are symmetrically installed transmission device, and pressure sensor is mounted between friction plate and transmission device；Transmission device is connect with power drive unit, and pressure sensor is connect with pressure closed loop control device；Pressure closed loop control device is connect with power drive unit.The present invention by between friction plate and frictional disk gap and pressure real-time detection and adjustment to reach quick, accurately control moment of friction avoid people's manual adjustment friction pressure, high degree of automation；Avoid traditional air pressure, hydraulic loaded mode system complex.
Description
Technical field
The invention belongs to mechanical friction loading device research fields, are related to a kind of frictional force load dress for simulating real load
It sets, and in particular to a kind of disk-type friction loading system and method, by accurately controlling friction pressure, frictional force required for generating
Square is mainly used for load when elevator rises in elevator load test.
Background technique
In elevator load test, need to load is applied in lift car, traditional loading method mainly has following two
Kind, first is standard test weight load, and counterweight is generally 25kg, and the elevator for being 1000kg for rated load needs model to be loaded
40% for rated load, 50%, 100%, 105%, 110%, 125% are enclosed, 50 pieces of standard test weights are at most moved into carriage,
And it needs constantly carriage, this loading method low efficiency are moved into and moved out to counterweight in primary complete load test
Under, and need to expend a large amount of manpower and material resources.Second is to enter lift car after allowing field test personnel to weigh, due to people's
Weight is different, can not achieve the accurate control of load, and can threaten to the personal safety of testing crew.By right
Problem above is analyzed it is found that there is an urgent need to a kind of light, convenient in carrying and can guarantee the device of testing crew personal safety,
The load of traditional counterweight load and testing crew load can be substituted, and load can accurately be controlled.
A kind of friction-loaded device for mechanical load platform, number of patent application: 201420484779.4, mainly by revolving
Shaft, plunger, butterfly spring group, plug screw composition, plug screw rotates when device works, and compresses disk spring group, disk spring group
It pressure is applied on plunger, pressure will be generated between plunger and rotary shaft at this time, rotary shaft rotates or have rotation
Moment of friction can be generated when trend, though this device structure is simple, cannot achieve the accurate control to moment of friction, and friction portion
Part is enclosed construction, is unfavorable for radiating, and the excessively high coefficient of friction that can make friction member of temperature is significantly decayed, to influence defeated
Moment of friction out.Preceding center of oscillation jet pipe load simulation friction-loaded device, number of patent application: 201410424750.1, it is main
Be made of friction-loaded mechanism and friction-loaded hydraulic system, friction-loaded mechanism mainly by hydraulic cylinder, piston, friction block, rub
Disk composition is wiped, friction-loaded hydraulic system is mainly made of oil sources, proportional pressure-reducing valve, pressure gauge, and oil sources generates when device works
Hydraulic oil with pressure adjusts ratio pressurizing valve, so that oil pressure is reached required pressure, piston exists at this time by observing pressure gauge
Friction plate and frictional disk are compressed under the action of hydraulic oil, to generate moment of friction, this device realizes the essence of moment of friction
Really load, but adjustment process relies on manually, cannot achieve automatic adjustment, and device is complicated, it has not been convenient to carry.
In conclusion friction-loaded system can not meet load loading accuracy simultaneously, load automatic adjustment, use at this stage
It is light, easy to carry etc. to require.Therefore, being badly in need of a set of load loading accuracy, the load of capable of improving of research and development can automatically adjust and use
Light friction-loaded system, to elevator checkability is improved, hoisting elevator security performance has vital effect.
Summary of the invention
Current loading accuracy is poor, load self-regulation ability is poor in order to overcome, structure is complicated it is not readily portable the problems such as, this
Invention provides a kind of disk-type friction loading system and method, is mainly used for load when elevator rises in elevator load test.
The technical scheme is that a kind of disk-type friction loading system, including friction-loaded main shaft device, transmission dress
It sets, base, pressure sensor, pressure closed loop control device and power drive unit；
The friction-loaded main shaft device includes shaft, frictional disk, clamp and friction plate；The both ends of the shaft is mounted on base
On seat, the frictional disk is mounted in shaft；
On the base, the two sides of clamp are separately installed with the friction plate being arranged symmetrically, described for the bottom installation of the clamp
Friction plate is corresponding with the position of frictional disk, and contacts with each other；
The friction plate two sides are symmetrically installed transmission device, the pressure sensor be mounted on friction plate and transmission device it
Between；The transmission device is connect with power drive unit, and power drive unit driving transmission device is by friction plate to frictional disk pressure
Tightly, the pressure between the pressure sensor detection friction plate and frictional disk, pressure sensor and pressure closed loop control device connect
It connects；The pressure closed loop control device is connect with power drive unit.
In above scheme, the both ends of the shaft is installed on the base by rotating shaft support, and described shaft one end is provided with keyway
And the shaft shoulder.
In above scheme, the clamp include clamp caliper and clamp erection support；
The clamp caliper is connect with one end of clamp erection support；The other end of clamp erection support is connect with base.
In above scheme, the friction plate includes the friction material being sequentially arranged, friction plate backboard and rubber pad；
The side of the friction material is connect with the side of friction plate backboard；The other side of friction plate backboard and rubber pad connect
It connects.
In above scheme, the friction plate backboard is equipped with flange along its length, and the two sides of the clamp caliper, which are provided with, leads
Slot, friction plate backboard are coupled with guide groove.
In above scheme, the transmission device include mandril, die springs I, die springs II, lead screw, sliding block, guide rail,
Gear wheel, pinion gear, shaft coupling and pinion shaft；
One end of the mandril is connect with pressure sensor, one end of the die springs I and die springs II respectively with
The other end of another end in contact of mandril, die springs I and die springs II is contacted with nut；
The lead screw is screwed with nut, and lead screw both ends are installed on the base by lead screw support respectively；
The nut lower part is connect with sliding block；The sliding block is mounted on guide rail；The guide rail is installed by guide rail bearing
On base；
The pinion gear is mounted on pinion shaft；The gear wheel is mounted on one end that lead screw and nut screw；It is described
Pinion gear is engaged with gear wheel；On the base by support installation, the other end passes through for pinion shaft one end of the transmission device
Shaft coupling is connect with power drive unit.
In above scheme, one end that the mandril is connect with pressure sensor is equipped with boss, boss axis and the pressure
The axis of sensor is overlapped, and the boss is contacted with the stress area of pressure sensor.
In above scheme, the power drive unit includes servo motor and motor servo driver, servo motor and is watched
Take motor driver electrical connection.
In above scheme, the pressure closed loop control device includes single-chip microcontroller, digital analog converter, voltage amplifier, pick-up
Device, low-pass filter and analog-digital converter；
The single-chip microcontroller, digital analog converter, voltage amplifier, motor servo driver, servo motor, pressure sensor,
Transmitter, low-pass filter and analog-digital converter are sequentially connected in a closed loop mode.
A kind of friction-loaded control method according to the disk-type friction loading system, includes the following steps:
Step S1, by the single-chip microcontroller setting load value T of the pressure closed loop control device, friction coefficient μ, friction plate
Diameter R1, friction plate outer diameter R2, servo motor critical speed value Ω；
Step S2, the described single-chip microcontroller calculates pressure when generating setting load value between the required friction plate and frictional disk
P, calculation formula are as follows:
R in above formula1For friction plate internal diameter, R2It is the load value set, μ as friction plate and frictional disk for friction plate outer diameter, T
Between coefficient of friction；
Step S3, start the servo motor, and with the rotational speed of ω, set power detection number i=1；
Step S4, the pressure of two pressure sensor outputs is respectively F1And F2, F1And F2Successively through transmitter, low
It is acquired after bandpass filter, analog-digital converter processing by the single-chip microcontroller；
Step S5, the described single-chip microcontroller calculates the friction plate and frictional disk actual pressure and sets the difference between pressure,
Calculation formula is as follows:
If step S6,S7 is thened follow the steps, it is no to then follow the steps S9；
Step S7, the revolving speed of the servo motor is reduced to original half, i.e.,
If step S8, when ω≤Ω, revolving speed is not before Δ P=0 for the servo motor in each detection cycle
It adjusts again, i.e. step S6 and step S7 are no longer executed, if continuing to execute step S6 in each detection cycle when ω > Ω
With step S7；
Step S9, pressure detecting number is made to add 1, i.e. i=i+1；
If step S10, Δ P=0 thens follow the steps S11；If Δ P > 0, thens follow the steps S4；
Step S11, the servo motor is closed.
Compared with prior art, the beneficial effects of the present invention are:
1. motor of the present invention drives lead screw to rotate by gear drive, and then promotes nut and sliding block are horizontal on guide rail to move
It is dynamic.Normal pressure is applied to friction plate when frictional disk two sides nut is mobile, moment of friction is then generated between friction plate and frictional disk, i.e.,
It added corresponding load in shaft.The present invention by between friction plate and frictional disk gap and pressure real-time detection and tune
It is whole, to achieve the effect that quick, accurate control moment of friction, avoid people's manual adjustment friction pressure, high degree of automation.
2. the present invention forms pressure closed loop control by using pressure sensor, servo motor, single-chip microcontroller etc., can examine in real time
The pressure between adjustment friction plate and frictional disk is surveyed, to achieve the effect that control moment of friction, it can be achieved that accurate load.
3. the present invention selects the transmission device of motor, gear, lead screw, nut, spring etc., transmitting load is big, and stability is high,
Traditional air pressure, hydraulic system loading method complexity are avoided, load is difficult to control, compact-sized, low cost.
4. the present invention radiates convenient for friction member, avoids by using the open loading method of frictional disk and friction plate
Hot-spot influences coefficient of friction, improves the stability of moment of friction.
5. friction plate of the present invention can be moved along perpendicular to frictional disk direction, there is the ability of compensation abrasion, extend use
Service life avoids because abrasion causes coefficient of friction to change, further improves loading accuracy and stability.
Detailed description of the invention
Fig. 1 is a kind of mechanical construction drawing of disk-type friction loading system of the present invention.
Fig. 2 is 601 installation diagram of clamp 4, friction plate 5 and pressure sensor in Fig. 1.
Fig. 3 is the structure chart of transmission device 7 in Fig. 1.
Fig. 4 is the mechanical construction drawing of mandril 702 in Fig. 3.
Fig. 5 is a kind of composition schematic diagram of friction-loaded control system of the present invention.
Fig. 6 is a kind of disk-type friction loading control method flow chart of the present invention.
In figure: shaft 1, rotating shaft support 2, frictional disk 3, clamp 4, clamp caliper 401, clamp install bolt 402, clamp peace
Fill support 403, friction plate 5, friction material 501, friction plate backboard 502, rubber pad 503, pressure sensor 601, pressure sensing
Device support 602, transmission device 7, mandril and sensor install screw 701, mandril 702, die springs I 7031, die springs II
7032, lead screw 7041, lead screw support 7042, nut 7051, nut installs bolt 7052, sliding block 706, guide rail 707, guide rail bearing
708, gear wheel 709, pinion gear 710, pinion shaft 711, shaft coupling 712, base 8, servo motor erection support 901, servo
Motor 902, motor servo driver 903, single-chip microcontroller 904, digital analog converter 905, voltage amplifier 906, transmitter 907 are low
Bandpass filter 908, analog-digital converter 909.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description, but protection scope of the present invention
It is not limited to this.
As shown in Figure 1, a kind of disk-type friction loading system of the present invention, including friction-loaded main shaft device, transmission dress
It sets, base 8, pressure sensor 601, pressure closed loop control device and power drive unit；By accurately controlling friction pressure, produce
Moment of friction required for raw.
As depicted in figs. 1 and 2, the friction-loaded main shaft device includes shaft 1, frictional disk 3, clamp 4 and friction plate 5.
1 both ends of shaft are mounted on pedestal 8 by rotating shaft support 2, and rotating shaft support 2 plays the role of the entire shaft 1 of support；It is described
1 one end of shaft is provided with keyway and the shaft shoulder, convenient for connecting with external equipment.The frictional disk 3 is mounted on the shaft 1 by bolt
It is intermediate.
The clamp 4 include clamp caliper 401, clamp installation bolt 402 and clamp erection support 403；Under the clamp 4
Portion is provided with through-hole, and the clamp caliper 401 is installed bolt 402 by the clamp and connect with one end of clamp erection support 403；
Another and base 8 of the clamp erection support 403 is connect；Symmetrical cloth is installed in the guide groove of 401 two sides of clamp caliper
The friction plate 5 set, plays guiding role.The friction plate 5 is corresponding with the position of frictional disk 3, and contacts with each other；
The friction plate 5 includes friction material 501, friction plate backboard 502 and the rubber pad 503 being sequentially arranged；It is described to rub
The side for wiping material 501 is connect with the side of friction plate backboard 502；The other side of friction plate backboard 502 and rubber pad 503 connect
It connects.The friction plate 5 is two pieces, and installation site is symmetrical, and the friction material 501 has certain thickness, friction plate backboard 502
For steel plate, friction plate 5 is symmetrically installed in the guide groove of left and right two of the clamp caliper 401；The friction material 501 and institute
Friction plate backboard 502 is stated by high-temperature laminating together, can only along guide groove guide direction micro-displacement, when work the friction plate
5 are forced into 3 surface of frictional disk；The friction plate backboard 502 is equipped with flange along its length, can be with the clamp caliper
401 guide groove is coupled, and has guiding role.The friction material 501 due to abrasion when thickness reduction, carry on the back by the friction plate
Plate 502 can move along frictional disk direction under the action of 7 thrust of transmission device, can compensate for abrasion loss in this way, improve and add
Carry precision and stability.The rubber pad 503 is pasted on the friction plate backboard 502, can be reduced because of friction-loaded system work
It is caused along axial vibration when making, play the role of buffering and vibration damping.
Described 601 one end of pressure sensor is pressed on rubber pad 503 described in the back side of the friction plate 5, and the other end passes through
The mandril 702 of bolt and the transmission device 7 passes through screw connection；The pressure sensor 601 can detect 5 He of friction plate
Pressure between the frictional disk 3；The pressure sensor support 602 plays the role of the support pressure sensor 601, and
Have the function of positioning and guiding, be axially moveable the sensor can only, and is thin tail sheep, pressure sensor support 602
Lower part is mounted on the base 8.
As shown in Figures 3 and 4, the transmission device 7 is positive pressure-loaded transmission device 7, including mandril and sensor are installed
Screw 701, mandril 702, die springs I 7031, die springs II 7032, nut 7051, nut install bolt 7052, lead screw
7041, lead screw supports 7042, sliding block 706, guide rail 707, guide rail bearing 708, gear wheel 709, pinion gear 710, shaft coupling 712
With pinion shaft 711；The transmission device 7 is symmetrically mounted on the both sides of friction plate 5.
The mandril 702 installs the screw hole that screw 701 is mounted on the pressure sensor 601 by mandril and sensor
In, centre is equipped with boss, protrudes 1mm, and the axis coincidence of boss axis and the pressure sensor 601 simultaneously connects with its stress area
Touching, it is ensured that the case where 601 uniform force of pressure sensor is symmetrical, will not generate unbalance loading；
702 other end of mandril is equipped with guide post, extend into the interior of the die springs I 7031 and die springs II 7032
Guiding and protection spring play the role of in portion；The nut 7051 is contacted with the spring I 7031 and die springs II 7032
Region is equipped with guide post, can protrude into spring inner, plays the role of protecting spring.
The die springs I 7031, II 7,032 1 end cap of die springs are on the guide post of the mandril 702, another end cap
On the guide post of the nut 7051.Die springs both ends have guide post to protrude into, and play the role of protecting spring.
The lead screw 7041 is screwed with the nut 7051；7041 both ends of lead screw pass through 7042 peace of lead screw support respectively
On pedestal 8；The lead screw 7041 can only rotate, and cannot be axially moveable.
Bolt 7052 is installed by nut and is connect with sliding block 706 in 7051 lower part of nut；The nut 7051 is fixed on
On the sliding block 706, the sliding block 706 is mounted on the guide rail 707, can be moved, cannot be rotated along guide rail 707.The silk
Thick stick 7041, nut 7051 screw thread meet condition of self-locking, nut 7051 will not be retreated because of the counter-force of the friction plate 5.
The guide rail 707 is connect by bolt with one end of guide rail bearing 708；The other end of the guide rail bearing 708 is pacified
On the base 8.
The pinion gear 710 is mounted on the pinion shaft 711；The gear wheel 709 is mounted on the lead screw 7041
The one end screwed with the nut 7051；The pinion gear 710 is engaged with the gear wheel 709, transmission ratio 3；The transmission
711 one end of pinion shaft of device 7 is equipped with support, and the other end is connect by the shaft coupling 712 with power drive unit.
The power drive unit includes servo motor 902 and motor servo driver 903, servo motor 902 and servo
Motor driver 903 is electrically connected.The servo motor 902 is mounted on the base 8 by the servo motor erection support 901
On.
As shown in figure 5, the pressure closed loop control device includes: single-chip microcontroller 904, digital analog converter 905, voltage amplifier
906, transmitter 907, low-pass filter 908 and analog-digital converter 909.The single-chip microcontroller 904, digital analog converter 905, voltage are put
Big device 906, motor servo driver 903, servo motor 902, pressure sensor 601, transmitter 907,908 and of low-pass filter
Analog-digital converter 909 is sequentially connected in a closed loop mode.
The signal that the single-chip microcontroller 904 is exported according to pressure sensor 601, closed-loop control available servo motor 902 rotate, with
The pressure between friction plate 5 and frictional disk 3 is adjusted, loads setting value, i.e. frictional force required for friction-loaded system to reach
Square.
When this system work starts, the single-chip microcontroller 904 will need institute according to setting load, the load for calculating generation setting
It states and generates great pressure between friction plate 5 and frictional disk 3, according to the load output digit signals of setting；The digital-to-analogue conversion
The digital signal that the single-chip microcontroller 904 exports is converted to analog voltage signal by device 905；The voltage amplifier 906 will be described
The analog voltage signal amplification that digital analog converter 905 exports；The motor servo driver 903 receives the voltage amplifier
The voltage signal of 906 outputs rotates to control the servo motor 902；The servo motor 902 uses speed control mode；Institute
State the pressure that is converted to the friction plate 5 and the frictional disk 3 between of the transmission device 7 by the servo motor 902；Institute
State the pressure described in 601 real-time detection of pressure sensor between friction plate 5 and frictional disk 3, and output pressure signal；The pick-up
The pressure signal that device 907 exports the pressure sensor 601 amplifies；The low-pass filter 908 will filter out the pick-up
High-frequency signal in 907 output pressure signal of device；The simulation that the analog-digital converter 909 exports the low-pass filter 908
Signal is converted to digital signal；After the single-chip microcontroller 904 receives the voltage signal of the analog-digital converter 909, pressed with calculating
Power compares；If the pressure between the friction plate 5 and frictional disk 3 does not reach calculated value, control servo motor after
Continuous rotation；If the pressure between the friction plate 5 and frictional disk 3 reaches calculated value, controls servo motor and stop operating.
As shown in fig. 6, the friction-loaded control method of disk-type friction loading system of the present invention, includes the following steps:
The present embodiment is with required loaded load value 40N.m, gray cast iron frictional disk, ceramic friction plate internal diameter 120mm, outer diameter
For 150mm.
Step S1, load value T=40N.m, friction coefficient μ=0.3, friction plate internal diameter R are set by single-chip microcontroller 9041=
120mm, friction plate outer diameter R2=150mm, servo motor critical speed value Ω=1r/min, when motor speed is lower than Ω, with
Former speed operating；
Step S2, the described single-chip microcontroller 904 calculates the required friction plate 5 and the frictional disk 3 when generating setting load value
Between pressure P, calculation formula is as follows:
R in above formula1For friction plate internal diameter, R2It is the load value set, μ as friction plate and frictional disk for friction plate outer diameter, T
Between coefficient of friction, dimensionless, R1、R2, T, P unit be respectively as follows: m, m, N.m, N；
Step S3, start the servo motor 902, and with the rotational speed of ω, ω=20r/min sets power detection number i
=1；
Step S4, the pressure that two pressure sensors 601 export is respectively F1And F2, F1And F2Through the transmitter
907, low-pass filter 908 and analog-digital converter 909 are acquired after handling by the single-chip microcontroller 904；
Step S5, the described single-chip microcontroller 904 calculates between the friction plate 5 and 3 actual pressure of frictional disk and setting pressure
Difference；Calculation formula is as follows:
F1、F2Unit be respectively N, N；
If step S6,Then follow the steps 7, it is no to then follow the steps S9；
Step S7,902 speed of servo motor is reduced to original half, i.e.,
If step S8, when ω≤Ω, the servo motor 902 revolving speed before Δ P=0 in each detection cycle
It no longer adjusts, i.e. step S6 and step S7 are not being executed；If continuing to execute step in each detection cycle when ω > Ω
S6 and step S7；
Step S9, pressure detecting number is made to add 1, i.e. i=i+1；
If step S10, Δ P=0 thens follow the steps S11；If Δ P > 0, thens follow the steps S4；
Step S11, the servo motor 902 is closed, servo motor stops operating.
The series of detailed descriptions listed above are illustrated only for possible embodiments of the invention,
The protection scope that they are not intended to limit the invention, it is all without departing from equivalent embodiment made by technical spirit of the present invention or change
It should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of disk-type friction loading system, which is characterized in that including friction-loaded main shaft device, transmission device, base (8),
Pressure sensor (601), pressure closed loop control device and power drive unit；
The friction-loaded main shaft device includes shaft (1), frictional disk (3), clamp (4) and friction plate (5)；The shaft (1)
Both ends are mounted on base (8), and the frictional disk (3) is mounted on shaft (1)；
The bottom of the clamp (4) is mounted on base (8), and the two sides of clamp (4) are separately installed with the friction plate being arranged symmetrically
(5), the friction plate (5) is corresponding with the position of frictional disk (3), and contacts with each other；
Friction plate (5) two sides are symmetrically installed transmission device, and the pressure sensor (601) is mounted on friction plate (5) and passes
Between dynamic device (7)；The transmission device (7) connect with power drive unit, and power drive unit driving transmission device (7) will
Friction plate (5) is compressed to frictional disk (3), the pressure between pressure sensor (601) detection friction plate (5) and frictional disk (3)
Power, pressure sensor (601) are connect with pressure closed loop control device；The pressure closed loop control device and power drive unit connect
It connects；
The transmission device (7) include mandril (702), die springs I (7031), die springs II (7032), lead screw (7041),
Sliding block (706), guide rail (707), gear wheel (709), pinion gear (710), shaft coupling (712) and pinion shaft (711)；
One end of the mandril (702) is connect with pressure sensor (601), the die springs I (7031) and die springs II
(7032) one end another end in contact with mandril (702) respectively, die springs I (7031) and die springs II (7032) it is another
One end is contacted with nut (7051)；
The lead screw (7041) screws with nut (7051), and lead screw (7041) both ends pass through lead screw support (7042) installation respectively
On base (8)；
Nut (7051) lower part is connect with sliding block (706)；The sliding block (706) is mounted on guide rail (707)；The guide rail
(707) it is mounted on base (8) by guide rail bearing (708)；
The pinion gear (710) is mounted on pinion shaft (711)；The gear wheel (709) is mounted on lead screw (7041) and spiral shell
One end that female (7051) screw；The pinion gear (710) is engaged with gear wheel (709)；The pinion shaft of the transmission device (7)
(711) one end is mounted on base (8) by support, and the other end is connect by shaft coupling (712) with power drive unit.
2. disk-type friction loading system according to claim 1, which is characterized in that shaft (1) both ends pass through shaft
Support (2) is mounted on base (8), and described shaft (1) one end is provided with keyway and the shaft shoulder.
3. disk-type friction loading system according to claim 1, which is characterized in that the clamp (4) include clamp caliper
(401) and clamp erection support (403)；
The clamp caliper (401) connect with one end of clamp erection support (403)；The other end of clamp erection support (403)
It is connect with base (8).
4. disk-type friction loading system according to claim 3, which is characterized in that the friction plate (5) includes successively cloth
Friction material (501), friction plate backboard (502) and the rubber pad (503) set；
The side of the friction material (501) is connect with the side of friction plate backboard (502)；Friction plate backboard (502) it is another
Side is connect with rubber pad (503).
5. disk-type friction loading system according to claim 4, which is characterized in that the friction plate backboard (502) is along length
It spends direction and is equipped with flange, the two sides of the clamp caliper (401) are provided with guide groove, and friction plate backboard (502) is coupled with guide groove.
6. disk-type friction loading system according to claim 1, which is characterized in that the mandril (702) and pressure sensing
One end of device (601) connection is equipped with boss, and the axis of boss axis and the pressure sensor (601) is overlapped, the boss with
The stress area of pressure sensor (601) contacts.
7. disk-type friction loading system according to claim 1, which is characterized in that the power drive unit includes servo
Motor (902) and motor servo driver (903), servo motor (902) and motor servo driver (903) electrical connection.
8. disk-type friction loading system according to claim 7, which is characterized in that the pressure closed loop control device includes
Single-chip microcontroller (904), digital analog converter (905), voltage amplifier (906), transmitter (907), low-pass filter (908) and modulus
Converter (909)；
The single-chip microcontroller (904), digital analog converter (905), voltage amplifier (906), motor servo driver (903), servo
Motor (902), pressure sensor (601), transmitter (907), low-pass filter (908) and analog-digital converter (909) successively close
Ring connection.
9. a kind of friction-loaded control method of disk-type friction loading system described in any one of -8 according to claim 1,
It is characterized in that, includes the following steps:
Step S1, load value T, friction coefficient μ, friction plate are set by the single-chip microcontroller (904) of the pressure closed loop control device
Internal diameter R1, friction plate outer diameter R2With servo motor critical speed value Ω；
Step S2, the single-chip microcontroller (904) calculate when generating setting load value the required friction plate (5) and frictional disk (3) it
Between pressure P, calculation formula is as follows:
R in above formula1For friction plate internal diameter, R2It is the load value set, μ as friction plate (5) and frictional disk for friction plate outer diameter, T
(3) coefficient of friction between；
Step S3, start the servo motor (902), and with the rotational speed of ω, set pressure detecting number i=1；
Step S4, the pressure of two pressure sensor (601) outputs is respectively F1And F2, F1And F2Successively through transmitter
(907), it is acquired after low-pass filter (908), analog-digital converter (909) processing by the single-chip microcontroller (904)；
Step S5, the described single-chip microcontroller (904) calculates between the friction plate (5) and frictional disk (3) actual pressure and setting pressure
Difference, calculation formula is as follows:
If step S6,S7 is thened follow the steps, it is no to then follow the steps S9；
Step S7, the revolving speed of the servo motor (902) is reduced to original half, i.e.,
If step S8, when ω≤Ω, revolving speed is not before Δ P=0 for the servo motor (902) in each detection cycle
It adjusts again, i.e. step S6 and step S7 are no longer executed, if continuing to execute step S6 in each detection cycle when ω > Ω
With step S7；
Step S9, pressure detecting number is made to add 1, i.e. i=i+1；
If step S10, Δ P=0 thens follow the steps S11；If Δ P > 0, thens follow the steps S4；
Step S11, the servo motor (902) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238409.5A CN108593319B (en) | 2018-03-22 | 2018-03-22 | A kind of disk-type friction loading system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238409.5A CN108593319B (en) | 2018-03-22 | 2018-03-22 | A kind of disk-type friction loading system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108593319A CN108593319A (en) | 2018-09-28 |
| CN108593319B true CN108593319B (en) | 2019-11-05 |
Family
ID=63627243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238409.5A Active CN108593319B (en) | 2018-03-22 | 2018-03-22 | A kind of disk-type friction loading system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108593319B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541465B (en) * | 2018-12-07 | 2021-04-27 | 麒盛科技股份有限公司 | Intelligent bed simulation test system |
| CN109733970A (en) * | 2019-02-26 | 2019-05-10 | 广州广日电梯工业有限公司 | A kind of safety tongs friction Temperature Rise test device and its control method |
| CN110567689B (en) * | 2019-05-22 | 2021-06-15 | 四川航天神坤科技有限公司 | High-frequency energy-saving friction load simulation device |
| CN112741986A (en) * | 2021-02-26 | 2021-05-04 | 西安理工大学 | Arm strength exercising device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1441225A1 (en) * | 1986-08-19 | 1988-11-30 | Предприятие П/Я Г-4086 | Loading device to closed-circuit testing engines |
| CN201083570Y (en) * | 2007-06-22 | 2008-07-09 | 煤炭科学研究总院上海分院 | Disc type constant torque loading unit |
| CN201837517U (en) * | 2010-07-28 | 2011-05-18 | 重庆齿轮箱有限责任公司 | General loading device |
| CN102426110A (en) * | 2011-09-16 | 2012-04-25 | 北京理工大学 | Friction loading apparatus and method thereof |
| CN102914442A (en) * | 2012-10-22 | 2013-02-06 | 清华大学 | One-way pressure dynamic loading device |
| CN105424274A (en) * | 2015-12-16 | 2016-03-23 | 常州电站辅机总厂有限公司 | Novel electric valve actuator delivery test frictional loading device |
-
2018
- 2018-03-22 CN CN201810238409.5A patent/CN108593319B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1441225A1 (en) * | 1986-08-19 | 1988-11-30 | Предприятие П/Я Г-4086 | Loading device to closed-circuit testing engines |
| CN201083570Y (en) * | 2007-06-22 | 2008-07-09 | 煤炭科学研究总院上海分院 | Disc type constant torque loading unit |
| CN201837517U (en) * | 2010-07-28 | 2011-05-18 | 重庆齿轮箱有限责任公司 | General loading device |
| CN102426110A (en) * | 2011-09-16 | 2012-04-25 | 北京理工大学 | Friction loading apparatus and method thereof |
| CN102914442A (en) * | 2012-10-22 | 2013-02-06 | 清华大学 | One-way pressure dynamic loading device |
| CN105424274A (en) * | 2015-12-16 | 2016-03-23 | 常州电站辅机总厂有限公司 | Novel electric valve actuator delivery test frictional loading device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108593319A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108593319B (en) | A kind of disk-type friction loading system and method | |
| CN102435944B (en) | Method for testing force characteristic of linear electric motor | |
| CN110510148B (en) | Rotor wing test bed of large-load unmanned helicopter | |
| WO2016019779A1 (en) | Method for testing braking ability of escalator by using flywheel instead of weight code | |
| CN201514301U (en) | Rolling bearing frictional moment/rotation speed measurement device | |
| CN110530637A (en) | Planetary roller screw dynamic property general-utility test platform | |
| CN111380698B (en) | Be used for new energy automobile to drive power assembly to dragging test bench structure | |
| CN109708883A (en) | A kind of electrically driven (operated) duty testing device of empennage of helicopter and control method | |
| CN108896302A (en) | A kind of warship face gear retarder closing noise detection apparatus | |
| CN208308165U (en) | Friction-loaded device | |
| CN108663148B (en) | Chassis dynamometer driven by permanent magnet synchronous motor | |
| CN108663149B (en) | Inner rotor chassis dynamometer directly driven by permanent magnet synchronous motor | |
| CN202757776U (en) | Brake torsional fatigue tester | |
| CN206876339U (en) | A kind of wind driven generator coupler slipping torque Calibrating experimental bench | |
| CN201444098U (en) | Lever-type force standard machine | |
| CN208476444U (en) | A kind of driving axis bearing staring torque test acquisition analysis system | |
| CN109941457A (en) | A kind of electrically driven (operated) duty testing device of empennage of helicopter and control method | |
| CN110470500A (en) | A kind of mine hoist safety braking performance is test bed | |
| CN102435425A (en) | Safety valve on-line detector driven by stepping motor | |
| CN112697458B (en) | Automatic climbing simulation device and method for motorcycle clutch performance test bed | |
| CN203335451U (en) | Vertical type excess speed testing device for axial flow fan | |
| CN211783993U (en) | Marine gearbox belt-row torque testing device | |
| CN210741848U (en) | Rigidity test device for large low-rigidity elastic coupling | |
| CN209764324U (en) | Multifunctional static braking torque testing device | |
| CN114088134A (en) | Steering engine load simulator without coupling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |