CN103852253B - The measuring method of Timing Belt slackness, system and armarium - Google Patents
The measuring method of Timing Belt slackness, system and armarium Download PDFInfo
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- CN103852253B CN103852253B CN201210517627.5A CN201210517627A CN103852253B CN 103852253 B CN103852253 B CN 103852253B CN 201210517627 A CN201210517627 A CN 201210517627A CN 103852253 B CN103852253 B CN 103852253B
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Abstract
The invention discloses measuring method, system and the armarium of a kind of Timing Belt slackness.Wherein, method includes: when the reciprocating motion element on Timing Belt is positioned at driving zero-bit, and reset the forward-backward counter pre-set；Timing Belt drives described reciprocating motion element away from when driving zero-bit under the first direction of rotation driving motor drives, and described forward-backward counter carries out counting forward to being arranged on the pulse signal driving the encoder on motor；When driving motor to drive Timing Belt with the second direction of rotation, described forward-backward counter carries out counting in reverse to being arranged on the pulse signal driving the encoder on motor；When Timing Belt drives described reciprocating motion element to revert to drive zero-bit under the second direction of rotation driving motor drives, described forward-backward counter stops counting in reverse, and exports the current count result that may indicate that Timing Belt slack.Technical scheme disclosed in this invention can provide the relaxation cases of Timing Belt the most in real time, and use manpower and material resources sparingly resource.
Description
Technical field
The present invention relates to mechanical transmission fields, measuring method, system and the medical treatment of a kind of Timing Belt slackness set
Standby.
Background technology
In some fields such as armarium and industrial equipment, it will usually use belt pulley set as its internal mechanical power
Delivery means.
Such as, Fig. 1 shows in the armarium such as magnetic resonance (MR) equipment or computed tomography (CT) equipment logical
The structural representation of one mechanical driving of the examinating couch often can used.As it is shown in figure 1, this mechanical driving is mainly wrapped
Include: with the drivewheel 2 driving motor 1 to be connected, hard-wired driven pulley 3, and match with described drivewheel 2 and driven pulley 3
The drive coordination band 4 closed.Wherein, described Timing Belt 4, under the driving driving motor 1, is connected with examinating couch bed board 5 by driving
Support frame for bed plate 6 move back and forth along guide rail 7, it is achieved the reciprocal driving to examinating couch bed board 5.
But this mechanical driving realized by belt pulley set, can be along with the prolongation of the time of operation, and Timing Belt is because shaking
The factor such as tension during dynamic and transmission and the deformation of creep, thus elongated lax.As shown in fig. 1, Timing Belt 4 is thrown just
When entering to use, owing to Timing Belt 4 is in tensioned state, the therefore a length of P of its bottom side, along with the prolongation of the time of use, synchronize
Band 4 can be elongated lax, and now the length of its bottom side becomes L, and the frictional force between Timing Belt and belt wheel thus can be made to diminish,
Occur skidding and affecting transmission efficiency, and be likely to occur wow and flutter phenomenon.
For this reason, it may be necessary to know the relaxation cases of Timing Belt in time, in order to process in time.At present, it is mainly by safeguarding
Personnel periodically carry out manual detection to it, but this detection method on the one hand may be not prompt enough, on the other hand also compare waste
Manpower and materials.
Summary of the invention
In view of this, one aspect of the present invention proposes the measuring method of a kind of Timing Belt slackness, on the other hand proposes
The measurement system of a kind of Timing Belt slackness and armarium, in order to provide the relaxation cases of Timing Belt the most in real time, save
Human and material resources.
The measuring method of the Timing Belt slackness that the present invention proposes, including: the reciprocating motion element on A, Timing Belt is positioned at
When driving zero-bit, reset the forward-backward counter pre-set；B, Timing Belt carry under the first direction of rotation driving motor drives
Dynamic described reciprocating motion element is away from when driving zero-bit, and described forward-backward counter drives the arteries and veins of the encoder on motor to being arranged on
Rush signal and carry out counting forward；When C, driving motor drive Timing Belt with the second direction of rotation, described forward-backward counter is to setting
Pulse signal at the encoder driven on motor carries out counting in reverse；D, Timing Belt drive in the second direction of rotation driving motor
When driving described reciprocating motion element to revert to drive zero-bit under moving, described forward-backward counter stops counting in reverse, and output can
The current count result of instruction Timing Belt slack.
In an embodiment of the invention, the method farther includes: by described current count result with set in advance
The count results threshold value representing Timing Belt slackness maximum permissible value put compares, and exceedes institute in described current count result
When stating count results threshold value, export alarm signal；Or, described current count result is multiplied by the power train obtained in advance
Number, obtains the current slack length of Timing Belt；By the current slack length of described Timing Belt and the expression Timing Belt pre-set
The relaxed length threshold value of relaxed length maximum permissible value compares, and exceedes described relaxed length threshold in described current slack length
During value, export alarm signal.
In an embodiment of the invention, the method farther includes: in described current count result not less than institute
When stating count results threshold value, utilize described current count result that the shift position of reciprocating motion element is carried out level compensating；Or
Person, when described current slack length is not less than described relaxed length threshold value, utilizes described current slack length to reciprocating motion
The shift position of element carries out level compensating.
In an embodiment of the invention, described reciprocating motion element is examinating couch bed board；Described step A is: use
In indicating the zero-bit trigger of driving zero-bit of described examinating couch bed board by the zero-bit of the support frame for bed plate of support examinating couch bed board
When triggering end triggering, sending the signal representing non-enable to the Enable Pin of described forward-backward counter, described forward-backward counter is in
Reset state；Described step B is: Timing Belt drives support examinating couch bed board under the first direction of rotation driving motor drives
The zero-bit of support frame for bed plate trigger end leave described zero-bit trigger by time, described zero-bit trigger is to described forward-backward counter
Enable Pin send represent enable signal, described forward-backward counter according to the first direction of rotation signal of the encoder received,
The pulse signal of the encoder being arranged on driving motor received is carried out counting forward；Described step C is: drive motor
When driving Timing Belt with the second direction of rotation, described forward-backward counter is according to the second direction of rotation letter of the encoder received
Number, the pulse signal of the encoder being arranged on driving motor received is carried out counting in reverse；Described step D is: synchronize
Band drives the zero-bit of the support frame for bed plate of support examinating couch bed board to trigger end under the second direction of rotation driving motor drives and touches
Send out zero-bit trigger described by time, described zero-bit trigger sends the letter representing non-enable to the Enable Pin of described forward-backward counter
Number, described forward-backward counter stops counting in reverse, and exports the current count result that may indicate that Timing Belt slack.
In an embodiment of the invention, described zero-bit trigger is photoelectric sensor or Hall element.
The measurement system of Timing Belt slackness that the present invention proposes, including: one be arranged on the encoder driven on motor, one
It is positioned at zero-bit trigger and the forward-backward counter driving zero-bit；Wherein, described encoder is for defeated to described forward-backward counter
Go out instruction drive the direction of rotation signal driving motor direction of rotation of Timing Belt and indicate described driving motor rotary course
Pulse signal；Described zero-bit trigger is when the reciprocating motion element on Timing Belt is positioned at described driving zero-bit, to institute
Stating forward-backward counter output and represent the signal of non-enable, the reciprocating motion element on described Timing Belt leaves described driving zero-bit
Time, represent, to the output of described forward-backward counter, the signal enabled；Described forward-backward counter is for exporting at described zero-bit trigger
When representing the signal of non-enable, reset after current count result is exported；Represent in the output of described zero-bit trigger and enable
Signal time, if the direction of rotation signal from encoder is the first direction of rotation signal, then the pulse signal of encoder is entered
Row counting forward；If the direction of rotation signal from encoder is the second direction of rotation signal, the then pulse signal to encoder
Carry out counting in reverse.
In an embodiment of the invention, this system farther includes: a calculation processing apparatus and an alarm
Device；Described calculation processing apparatus is for permitting described current count result with the expression Timing Belt slackness maximum pre-set
The count results threshold value being permitted value compares, and when described current count result exceedes described count results threshold value, notice is described
Alarm device output alarm signal；Or, for described current count result is multiplied by the power train obtained in advance
Number, obtains the current slack length of Timing Belt；By the current slack length of described Timing Belt and the expression Timing Belt pre-set
The relaxed length threshold value of relaxed length maximum permissible value compares, and exceedes described relaxed length threshold in described current slack length
During value, notify that described alarm device exports alarm signal.
In an embodiment of the invention, this system farther includes: a level compensating controls device；Described calculating
Described count results, when described current count result is not less than described count results threshold value, is supplied to described water by processing means
Flat compensation controls device；Or, when described current slack length is not less than described relaxed length threshold value, by described current slack
Length is supplied to described level compensating and controls device；Described level compensating controls device and is used for utilizing described current count result pair
The shift position of described reciprocating motion element carries out level compensating；Or, utilize described current slack length to moving back and forth unit
The shift position of part carries out level compensating.
In an embodiment of the invention, described zero-bit trigger is photoelectric sensor or Hall element.
A kind of armarium that the present invention proposes, including driving motor, by the motor-driven Timing Belt of described driving, installation
Reciprocating motion element on described Timing Belt and the measurement system of any of the above-described Timing Belt slack implementing form.
Wherein, the encoder in the measurement system of described Timing Belt slack is arranged on described driving motor, and described Timing Belt relaxes
Zero-bit trigger in the measurement system of amount is arranged on the driving zero-bit of described reciprocating motion element；Described Timing Belt slack
Forward-backward counter in measurement system is positioned in the control device of described armarium.
In an embodiment of the invention, described reciprocating motion element is examinating couch bed board.
It can be seen that owing to the present invention utilizing a forward-backward counter reciprocal to drive on Timing Belt from such scheme
What motor element moved back and forth drives motor rotations to carry out the positive and negative counting of encoder pulse, if Timing Belt exists lax
Amount, then reciprocating motion element one can there are differences between the count results of twice multiple motor process, i.e. forward-backward counter
Carrying out the count results after positive and negative counting to be not zero, this count results being not zero can represent the slackness of Timing Belt, it is achieved
The automatic real-time measurement of Timing Belt relaxation cases, saves manpower and materials.
Further, by by this count results or its be multiplied by gearing factor after result Tong Bu with the expression pre-set
The threshold value of belt sag degree maximum permissible value compares, and can export alarm signal, make maintenance people when beyond described threshold value
Member is known current Timing Belt slackness in time and carries out respective handling.
Additionally, described count results or its be multiplied by gearing factor after result without departing from described threshold value time, available should
Count results or its be multiplied by gearing factor after result the shift position of reciprocating motion element is carried out level compensating, thus eliminate
Impact on reciprocating motion element control accuracy in the case of belt slack, improves the control accuracy of reciprocating motion element.
Accompanying drawing explanation
The preferred embodiments of the present invention will be described in detail by referring to accompanying drawing below, and make those of ordinary skill in the art more
Understand the above and other feature and advantage of the present invention, in accompanying drawing:
Fig. 1 is the structural representation of a mechanical driving of current armarium examinating couch.
Fig. 2 is the schematic flow sheet of the Measurement Method of Timing Belt slack in the embodiment of the present invention.
Fig. 3 is the annexation schematic diagram of a forward-backward counter in the embodiment of the present invention.
Fig. 4 a to Fig. 4 e is the measurement process signal of the Timing Belt slackness of armarium examinating couch in the embodiment of the present invention
Figure.
Fig. 5 is the structural representation of the photometry system of Timing Belt slack in the embodiment of the present invention.
Wherein, reference is as follows:
1 drives motor
2 drivewheels
3 driven pulleys
4 Timing Belts
5 examinating couch bed boards
6 support frame for bed plates
7 guide rails
8 photoelectric sensors
9,501 encoder
201,202,203,204 step
D_in data input pin
D_out data output end
P polar end
E Enable Pin
502 zero-bit triggers
503 forward-backward counters
504 calculation processing apparatus
505 alarm devices
506 level compensatings control device
Detailed description of the invention
Reciprocating motion element (such as examinating couch bed board 5) is driven back and forth to transport for needs as shown in Figure 1 by Timing Belt
Dynamic device, it will usually driving zero-bit is set in the side of drive area.Such as the position at photoelectric sensor 8 place in Fig. 1, when
When the block arranged on support frame for bed plate 6 shelters from this photoelectric sensor 8, represent that examinating couch bed board 5 is positioned at driving zero-bit.Work as bed
When the block arranged on plate bracing frame 6 leaves this photoelectric sensor 8, represent that examinating couch bed board 5 is positioned at non-driven zero-bit.
Additionally, in order to feed back the speed of service driving motor and drive the current activation point of assembly, it will usually for driving
An encoder installed by motor.As shown in fig. 1, in the side driving motor 1, one encoder 9 is installed, is used for feeding back driving electricity
The speed of service of machine and the current run location of examinating couch bed board 5.
In the embodiment of the present invention, it is considered to a forward-backward counter is set, after reciprocating motion element leaves driving zero-bit, according to
The positive and negative rotation direction of encoder utilizes this forward-backward counter the pulse signal of encoder to carry out corresponding positive reverse count, past
Multiple motor element returns when driving zero-bit, stops counting and exports count value, and this count value can reflect the lax journey of Timing Belt
Degree.
For making the object, technical solutions and advantages of the present invention clearer, the most detailed to the present invention by the following examples
Describe in detail bright.
Fig. 2 is the schematic flow sheet of the Measurement Method of Timing Belt slack in the embodiment of the present invention.As in figure 2 it is shown, the party
Method includes following flow process.
Step 201, when the reciprocating motion element on Timing Belt is positioned at driving zero-bit, reset the reversible counting pre-set
Device.
In this step, a zero-bit trigger can be set, when the reciprocating motion element on Timing Belt is positioned at driving zero-bit,
This zero-bit trigger sends the signal representing non-enable to described forward-backward counter, and described forward-backward counter is in reset state.
Still as a example by the mechanical driving of the examinating couch of armarium shown in Fig. 1, for this armarium examinating couch
Mechanical driving, can arrange a forward-backward counter as shown in Figure 3.The data input pin D_in of this forward-backward counter is used for connecing
Receiving the pulse signal of encoder, polar end P is for receiving the direction of rotation signal of encoder, and Enable Pin E is used for receiving photoelectric transfer
The conversion signal of sensor, data output end D_out is for the count results of output counter.Forward-backward counter can be in Enable Pin
E receives after representing the signal of non-enable and data output end D_out output count results and produces a reset signal to reset terminal
Reset, or reset signal can also be produced to reset terminal by other outer logic circuit according to the signal condition of Enable Pin E
Reset.When implementing, the forward-backward counter on this armarium can be by chip existing in the controller to armarium
Logical block be configured after generate, it is also possible to be an individually designed chip.
Fig. 4 a is the state that examinating couch bed board 5 is positioned at when driving zero-bit.As shown in fig. 4 a, now it is used for indicating examinating couch bed
The photoelectric sensor 8 of the driving zero-bit of plate 5 is sheltered from by the block of the support frame for bed plate 6 of support examinating couch bed board 5, therefore this light
Electric transducer 8 sends the signal representing non-enable to the Enable Pin of forward-backward counter, and described forward-backward counter is in reset state.
Under this starts state, the slack of Timing Belt 4 is positioned at upper end side.When needs drive examinating couch bed board 5 to move
Time, as shown in Figure 4 b, drive motor 1 to start to rotate counterclockwise, but before the upper end side of Timing Belt 4 is strained, examinating couch bed board 5
Will not produce any movement, now, photoelectric sensor 8 is still blocked, and forward-backward counter is still in reset state.
Step 202, Timing Belt drive motor first direction of rotation drive under drive described reciprocating motion element away from
When driving zero-bit, described forward-backward counter carries out counting forward to being arranged on the pulse signal driving the encoder on motor.
As illustrated in fig. 4 c, when the rotation counterclockwise driving motor 1 so that after the upper end side tension of Timing Belt 4, Timing Belt 4
Support frame for bed plate 6 forward starting to drive examinating couch bed board 5 moves so that the block on support frame for bed plate 6 leaves photoelectric sensing
Device 8, photoelectric sensor 8 sends to the Enable Pin of forward-backward counter and represents the signal enabled, and forward-backward counter is according to being received
The direction of rotation signal counterclockwise of encoder, carries out counting forward to the pulse signal of the encoder received.When examinating couch bed
When stopping after plate 5 move distance S, encoder is no longer to forward-backward counter output pulse signal, and therefore forward-backward counter is just stopping
To counting, now, the count value of forward-backward counter should corresponding S value.As illustrated in fig. 4 c, now the slack of Timing Belt 4 is positioned at
Lower end side.
Step 203, when driving motor to drive Timing Belt with the second direction of rotation, described forward-backward counter is to being arranged on driving
The pulse signal of the encoder on motor carries out counting in reverse.
As shown in figure 4d, when needs drive examinating couch bed board 5 to return driving zero-bit, motor 1 is driven to start dextrorotation
Turn, but before the lower end side of Timing Belt 4 is strained, examinating couch bed board 5 will not produce any movement.But due to photoelectric sensor
8 are not blocked, forward-backward counter still in enabled state, therefore suitable according further to the encoder received of this forward-backward counter
Hour hands direction of rotation signal, carries out counting in reverse to the pulse signal of encoder.When the lower end side of Timing Belt 4 is strained, reversible
The counting in reverse value of enumerator should be the slack of Timing Belt, i.e. L-P, and now, the grand total result of forward-backward counter should be S-
(L-P)。
After the lower end side of Timing Belt 4 is strained, Timing Belt 4 starts to drive the support frame for bed plate 6 of examinating couch bed board 5 reversely to move
Dynamic, forward-backward counter continues the direction signal that turns clockwise according to the encoder received, and enters the pulse signal of encoder
Row counting in reverse.
Step 204, Timing Belt drives described reciprocating motion element to return under the second direction of rotation driving motor drives
To when driving zero-bit, described forward-backward counter stops counting in reverse, and exports the current count knot that may indicate that Timing Belt slack
Really.
As shown in fig 4e, examinating couch bed board 5 is driven to return when Timing Belt 5 under the driving that turns clockwise driving motor 1
To when driving zero-bit, the block on support frame for bed plate 6 will shelter from photoelectric sensor 8 again, and photoelectric sensor 8 is to reversible counting
The Enable Pin of device sends the signal representing non-enable, and forward-backward counter stops counting in reverse, and exports count results.Now, may be used
The counting in reverse result of inverse enumerator should be L-P+S, its total count results should be S-(L-P+S)=-(L-P), this value can be anti-
Reflect the lax degree of Timing Belt 4.Additionally, forward-backward counter can reset after output count results voluntarily.
In above-described embodiment, it is applied to the zero-bit trigger of armarium examinating couch with photoelectric sensor (such as photoswitch
Deng) as a example by the description that carries out, in actual application, it is possible to use the zero-bit trigger that other are similar to, such as Hall element or machinery
Switch etc..
In actual application, the count results of corresponding forward-backward counter can arrange one and represent that Timing Belt slackness is maximum in advance
The count results threshold value of permissible value, correspondingly, can farther include in the method: by described current count result with pre-set
The count results threshold value representing Timing Belt slackness maximum permissible value compare, exceed described in described current count result
During count results threshold value, export alarm signal.And further, in described current count result not less than described counting
During result threshold value, available described current count result carries out level compensating to the shift position of reciprocating motion element.
Or, in actual application, it is possible to according to gearing factor and the count results of forward-backward counter of mechanical driving
Calculate the actual relaxed length of Timing Belt 4, and an expression Timing Belt relaxed length maximum permissible value can be pre-set
Relaxed length threshold value, correspondingly, can farther include in the method: described current count result is multiplied by the biography obtained in advance
Dynamic coefficient, obtains the current slack length of Timing Belt；The current slack length of described Timing Belt is same with the expression pre-set
The relaxed length threshold value of step belt sag length maximum permissible value compares, and exceedes described lax length in described current slack length
During degree threshold value, export alarm signal.And further, in described current slack length not less than described relaxed length threshold
During value, utilize described current slack length that the shift position of reciprocating motion element is carried out level compensating.
Above the measuring method of the Timing Belt slackness in the embodiment of the present invention is described in detail, the most again to this
In inventive embodiments, the measurement system of Timing Belt slackness is described in detail.
Fig. 5 is the structural representation of a system of the measuring method applying described Timing Belt slack in the embodiment of the present invention
Figure.As shown in the bold portion in Fig. 5, this system includes: encoder 501, zero-bit trigger 502 and forward-backward counter 503.
Wherein, encoder 501 is arranged on driving motor, drives Timing Belt for forward-backward counter 503 output instruction
Drive the direction of rotation signal of motor direction of rotation and indicate the pulse signal of described driving motor rotary course.
The driving zero-bit of the reciprocating motion element that zero-bit trigger 502 is positioned on Timing Belt, be used on Timing Belt is past
When multiple motor element is positioned at described driving zero-bit, represent the signal of non-enable to the output of described forward-backward counter, in described synchronization
When reciprocating motion element on band leaves described driving zero-bit, represent, to the output of described forward-backward counter, the signal enabled.This is zero years old
Position trigger 502 can be photoelectric sensor or Hall element etc..
When forward-backward counter 503 for representing the signal of non-enable in zero-bit trigger 502 output, to current count result
Reset after exporting；When zero-bit trigger 502 output represents the signal enabled, if from the direction of rotation of encoder 501
Signal is the first direction of rotation signal, then the pulse signal of encoder 502 is carried out counting forward；If the rotation from encoder
Direction signal is the second direction of rotation signal, then the pulse signal of encoder is carried out counting in reverse.
Corresponding with the Measurement Method of the Timing Belt slack in the embodiment of the present invention, the measurement system of this Timing Belt slack
System can farther include as shown in the dotted portion in Fig. 5: calculation processing apparatus 504 and alarm device 505.
Wherein, calculation processing apparatus 504 is for relaxing described current count result with the expression Timing Belt pre-set
The count results threshold value of degree maximum permissible value compares, when described current count result exceedes described count results threshold value,
Notice alarm device 505 exports alarm signal.
Or, described current count result also can be multiplied by the gearing factor obtained in advance by calculation processing apparatus 504, obtains
The current slack length of Timing Belt；By the current slack length of described Timing Belt and the expression Timing Belt relaxed length pre-set
The relaxed length threshold value of maximum permissible value compares, when described current slack length exceedes described relaxed length threshold value, logical
Know that alarm device 505 exports alarm signal.
Corresponding with the Measurement Method of the Timing Belt slack in the embodiment of the present invention, the measurement system of this Timing Belt slack
System also can farther include as shown in the dotted portion in Fig. 5: level compensating controls device 506.Now, calculation processing apparatus
Described count results can be supplied to level compensating when described current count result is not less than described count results threshold value by 504
Control device 506, level compensating control device 506 and utilize the movement to described reciprocating motion element of the described current count result
Position carries out level compensating.Or, calculation processing apparatus 504 in described current slack length not less than described relaxed length threshold value
Time, described current slack length is supplied to level compensating and controls device 506, level compensating control device 506 and utilize described
Current slack length carries out level compensating to the shift position of reciprocating motion element.
When the measurement system of the above-mentioned Timing Belt slack in the present embodiment is applied to armarium, this reciprocating motion unit
Part can be examinating couch bed board, and described zero-bit trigger can use photoelectric sensor.Here armarium can be MR
Equipment, CT equipment, X-ray machine etc..
It can also be to receive it that " reception " word in the embodiment of the present invention can be understood as actively obtaining from other modules
He sends the information of coming at module.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the device in accompanying drawing or stream
Journey is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the device in the system in embodiment can describe according to embodiment to carry out point
Cloth, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.The device of above-described embodiment can
To merge into a device, it is also possible to be further split into many sub-devices.
Part steps in the embodiment of the present invention, it is possible to use software realizes, and corresponding software program can be stored in can
In the storage medium read, such as CD or hard disk etc..
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (11)
1. a measuring method for Timing Belt slackness, is characterized in that, including:
When reciprocating motion element on A, Timing Belt is positioned at driving zero-bit, reset the forward-backward counter pre-set；
When B, Timing Belt drive described reciprocating motion element away from driving zero-bit under the first direction of rotation driving motor drives,
Described forward-backward counter carries out counting forward to being arranged on the pulse signal driving the encoder on motor；
When C, driving motor drive Timing Belt with the second direction of rotation, described forward-backward counter is to being arranged on the volume driven on motor
The pulse signal of code device carries out counting in reverse；
D, Timing Belt drive described reciprocating motion element to revert to drive zero-bit under the second direction of rotation driving motor drives
Time, described forward-backward counter stops counting in reverse, and exports the current count result that may indicate that Timing Belt slack.
Method the most according to claim 1, it is characterised in that the method farther includes: by described current count result
Compare with the count results threshold value representing Timing Belt slackness maximum permissible value pre-set, tie at described current count
When fruit exceedes described count results threshold value, export alarm signal；Or,
The method farther includes: described current count result is multiplied by the gearing factor obtained in advance, obtains working as of Timing Belt
Front relaxed length；By the current slack length of described Timing Belt and the expression Timing Belt relaxed length maximum permissible value pre-set
Relaxed length threshold value compare, when described current slack length exceedes described relaxed length threshold value, export alarm
Signal.
Method the most according to claim 2, it is characterised in that the method farther includes: in described current count result
During not less than described count results threshold value, utilize described current count result that the shift position of reciprocating motion element is carried out level
Compensate；Or,
The method farther includes: when described current slack length is not less than described relaxed length threshold value, utilize described currently
Relaxed length carries out level compensating to the shift position of reciprocating motion element.
The most according to the method in any one of claims 1 to 3, it is characterised in that described reciprocating motion element is examinating couch
Bed board；
Described step A is: for indicating the zero-bit trigger of the driving zero-bit of described examinating couch bed board by support examinating couch bed board
Support frame for bed plate zero-bit trigger end trigger time, to described forward-backward counter Enable Pin send represent non-enable signal,
Described forward-backward counter is in reset state；
Described step B is: Timing Belt drives the bed board of support examinating couch bed board under the first direction of rotation driving motor drives
The zero-bit of bracing frame trigger end leave described zero-bit trigger by time, described zero-bit trigger is to the enable of described forward-backward counter
End sends and represents the signal enabled, and described forward-backward counter is according to the first direction of rotation signal of the encoder received, to institute
Being arranged on of receiving drives the pulse signal of the encoder on motor to carry out counting forward；
Described step C is: when driving motor to drive Timing Belt with the second direction of rotation, described forward-backward counter is according to being received
Second direction of rotation signal of encoder, is carried out inversely the pulse signal of the encoder being arranged on driving motor received
Counting；
Described step D is: Timing Belt drives the bed board of support examinating couch bed board under the second direction of rotation driving motor drives
The zero-bit of bracing frame trigger end trigger described zero-bit trigger by time, described zero-bit trigger is to the enable of described forward-backward counter
End sends the signal representing non-enable, and described forward-backward counter stops counting in reverse, and output may indicate that Timing Belt slack
Current count result.
Method the most according to claim 4, it is characterised in that described zero-bit trigger is photoelectric sensor or hall sensing
Device.
6. a measurement system for Timing Belt slackness, is characterized in that, including: one be arranged on the encoder driven on motor, one
It is positioned at zero-bit trigger and the forward-backward counter driving zero-bit；Wherein,
Described encoder for driving the rotation driving motor direction of rotation of Timing Belt to the output instruction of described forward-backward counter
Direction signal and indicate the pulse signal of described driving motor rotary course；
Described zero-bit trigger is when the reciprocating motion element on Timing Belt is positioned at described driving zero-bit, to described reversible meter
Number device output represents the signal of non-enable, when the reciprocating motion element on described Timing Belt leaves described driving zero-bit, to institute
State forward-backward counter output and represent the signal enabled；
When described forward-backward counter for representing the signal of non-enable in the output of described zero-bit trigger, current count result is entered
Reset after row output；When the output of described zero-bit trigger represents the signal enabled, if from the direction of rotation signal of encoder
It is the first direction of rotation signal, then the pulse signal of encoder is carried out counting forward；If the direction of rotation from encoder is believed
Number it is the second direction of rotation signal, then the pulse signal of encoder is carried out counting in reverse.
System the most according to claim 6, it is characterised in that this system farther includes a: calculation processing apparatus and one
Alarm device；
Described calculation processing apparatus is for permitting described current count result with the expression Timing Belt slackness maximum pre-set
The count results threshold value being permitted value compares, and when described current count result exceedes described count results threshold value, notice is described
Alarm device output alarm signal；Or,
Described calculation processing apparatus, for described current count result is multiplied by the gearing factor obtained in advance, obtains Timing Belt
Current slack length；By maximum allowable with the expression Timing Belt relaxed length pre-set for the current slack length of described Timing Belt
The relaxed length threshold value of value compares, and when described current slack length exceedes described relaxed length threshold value, notifies described report
Alert suggestion device output alarm signal.
System the most according to claim 7, it is characterised in that this system farther includes a: level compensating controls device；
Described calculation processing apparatus is when described current count result is not less than described count results threshold value, by described count results
It is supplied to described level compensating and controls device；Or, calculation processing apparatus is lax not less than described in described current slack length
During length threshold, described current slack length is supplied to described level compensating and controls device；
Described level compensating controls device for utilizing the described current count result shift position to described reciprocating motion element
Carry out level compensating；Or, utilize described current slack length that the shift position of reciprocating motion element is carried out level compensating.
9. according to the system according to any one of claim 6 to 8, it is characterised in that described zero-bit trigger is photoelectric sensing
Device or Hall element.
10. an armarium, it is characterised in that include drive motor, by the motor-driven Timing Belt of described driving, be arranged on
Reciprocating motion element on described Timing Belt and the measurement of the Timing Belt slack as according to any one of claim 6 to 9
System；
Encoder in the measurement system of described Timing Belt slack is arranged on described driving motor, described Timing Belt slack
Measurement system in zero-bit trigger be arranged on the driving zero-bit of described reciprocating motion element；The survey of described Timing Belt slack
Forward-backward counter in amount system is positioned in the control device of described armarium.
11. armarium according to claim 10, it is characterised in that described reciprocating motion element is examinating couch bed board.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200254U (en) * | 1985-04-01 | 1986-04-09 | 南京工学院 | Digital instrument for measuring length by belt |
| JPS61184412A (en) * | 1985-02-12 | 1986-08-18 | Nippon Kokan Kk <Nkk> | Apparatus for measuring length of conveyer belt |
| US5060395A (en) * | 1990-02-15 | 1991-10-29 | Artos Engineering Company | Closed loop wire feeding and measuring apparatus and method of operating same |
| EP0572323A1 (en) * | 1992-05-27 | 1993-12-01 | Michel Deflou | Length-measuring device for elongated moving objects |
| US5291131A (en) * | 1992-03-31 | 1994-03-01 | Tsubakimoto Chain Co. | Apparatus for measuring elongation of a circulating chain |
| CN1279929A (en) * | 1999-07-07 | 2001-01-17 | 通用电器横河医疗***株式会社 | Working table and magnetic resonance device |
| DE20218187U1 (en) * | 2002-11-23 | 2003-02-27 | Festo Ag & Co | Length determination of an object on a moving conveyor belt being scanned by a camera |
| CN201316271Y (en) * | 2008-10-28 | 2009-09-30 | 山东新华医疗器械股份有限公司 | Spot film frame transmission mechanism for X-ray gastrointestinal diagnosis machine |
| CN201469273U (en) * | 2009-08-18 | 2010-05-19 | 上海西门子医疗器械有限公司 | Vertical motion device of examining table |
| CN202372348U (en) * | 2011-12-23 | 2012-08-08 | 中联重科股份有限公司 | Chain relaxation detection device, chain transmission system and engineering machinery |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU180827B (en) * | 1979-08-10 | 1983-04-29 | Koezponti Banyaszati Fejleszte | Method for measuring the resistance to wear of endless driving devices during operation |
| JPS5748521A (en) * | 1980-09-08 | 1982-03-19 | Bridgestone Corp | Measurement method for elongation of conveyor belt |
| CN2036183U (en) * | 1988-09-21 | 1989-04-19 | 青岛市五金电器厂 | Tester for elongation rate of yarn |
| CN1066824C (en) * | 1994-07-11 | 2001-06-06 | 上海理工大学 | Test method and device for backlash of driving chain |
| JPH10325715A (en) * | 1997-05-26 | 1998-12-08 | Tamagawa Seiki Co Ltd | Method and apparatus for detection of position |
| JP4461648B2 (en) * | 2001-07-04 | 2010-05-12 | トヨタ自動車株式会社 | Belt strain measurement device |
-
2012
- 2012-12-05 CN CN201210517627.5A patent/CN103852253B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61184412A (en) * | 1985-02-12 | 1986-08-18 | Nippon Kokan Kk <Nkk> | Apparatus for measuring length of conveyer belt |
| CN85200254U (en) * | 1985-04-01 | 1986-04-09 | 南京工学院 | Digital instrument for measuring length by belt |
| US5060395A (en) * | 1990-02-15 | 1991-10-29 | Artos Engineering Company | Closed loop wire feeding and measuring apparatus and method of operating same |
| US5291131A (en) * | 1992-03-31 | 1994-03-01 | Tsubakimoto Chain Co. | Apparatus for measuring elongation of a circulating chain |
| EP0572323A1 (en) * | 1992-05-27 | 1993-12-01 | Michel Deflou | Length-measuring device for elongated moving objects |
| CN1279929A (en) * | 1999-07-07 | 2001-01-17 | 通用电器横河医疗***株式会社 | Working table and magnetic resonance device |
| DE20218187U1 (en) * | 2002-11-23 | 2003-02-27 | Festo Ag & Co | Length determination of an object on a moving conveyor belt being scanned by a camera |
| CN201316271Y (en) * | 2008-10-28 | 2009-09-30 | 山东新华医疗器械股份有限公司 | Spot film frame transmission mechanism for X-ray gastrointestinal diagnosis machine |
| CN201469273U (en) * | 2009-08-18 | 2010-05-19 | 上海西门子医疗器械有限公司 | Vertical motion device of examining table |
| CN202372348U (en) * | 2011-12-23 | 2012-08-08 | 中联重科股份有限公司 | Chain relaxation detection device, chain transmission system and engineering machinery |
Non-Patent Citations (1)
| Title |
|---|
| 吊车卷绳圈数计数电路;华克强 等;《黑龙江自动化技术与应用》;19911231;第10卷(第1期);第39-41页 * |
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| CN103852253A (en) | 2014-06-11 |
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