CN206531564U - A kind of loading amount detecting device for worm-type open-close machine - Google Patents
A kind of loading amount detecting device for worm-type open-close machine Download PDFInfo
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- CN206531564U CN206531564U CN201720198453.9U CN201720198453U CN206531564U CN 206531564 U CN206531564 U CN 206531564U CN 201720198453 U CN201720198453 U CN 201720198453U CN 206531564 U CN206531564 U CN 206531564U
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- Prior art keywords
- worm
- infrared
- type open
- elastic shaft
- close machine
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Abstract
The utility model discloses a kind of loading amount detecting device for worm-type open-close machine, include the load sensor being connected between the output shaft of motor and the power input shaft of worm-type open-close machine, the signal condition unit that input is connected with load sensor output end, the A/D converting units being connected with the output end of signal condition unit, the single-chip microcomputer main control module being connected with the output end of A/D converting units.The utility model is simple in construction, easy for installation, realizes the power supply of load sensor internal rotating circuit by rotary transformer coupling, photoelectric coupling mode realizes the non-contact transmission of loading amount electric signal.Because the elastic shaft of load sensor and the power output shaft of motor are directly connected to, in headstock gear lifting process, it not only can accurately detect lotus weight change, shaft coupling can also be played a part of simultaneously, install and easy to maintenance, change the situation that existing worm-type open-close machine loading amount is difficult to accurately detect.
Description
Technical field
The utility model is related to water conservancy gate operational support apparatus field, specifically a kind of lotus for worm-type open-close machine
Weight detecting device.
Background technology
The opening and closing of country's water conservancy gate mainly use winch hoist and worm-type open-close machine at present, and loading is passed
Sensor mainly uses bearing seat type sensor, installs and safeguards and be very inconvenient；And the loading detection of worm-type open-close machine is always
There is no good solution, at present in many worm-type open-close machine application projects, due to no loading detection, often occur due to
Headstock gear load excessive and cause the generation of the accidents such as screw rod bending.Although occurring in that some are directed to worm-type open-close machine lotus at present
Gravimetric analysis sensing method, but effect be not it is fine, such as：Based on the gap moving back and forth by worm screw, crank mechanism is driven
Reverse to detect the actual loading of gate, but there is larger defect, one is that the moving back and forth of worm screw will cause the mill of turbine
Damage and accelerate, or even gnaw tooth phenomenon；Two be that this method increase a crank mechanism, the transmission path of loading is added one
Individual link, influences system accuracy；Three be that device structure is complicated, and installs and safeguard inconvenience；Four be that loading accuracy of detection is relatively low, its
Available accuracy is 5% or so.And simple installation, the accurate loading amount detecting device for worm-type open-close machine of measurement are gone back at present
Do not occur.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of loading amount detecting device for worm-type open-close machine,
Load sensor is connected between worm-type open-close machine and motor, and accuracy of detection is very high, enhances worm-type open-close machine operation
When safety and stability.
The technical solution of the utility model is：
A kind of loading amount detecting device for worm-type open-close machine, includes the output shaft and screw rod for being connected to motor
Load sensor between the power input shaft of formula headstock gear, the signal condition list that input is connected with load sensor output end
Member, the A/D converting units being connected with the output end of signal condition unit, the single-chip microcomputer being connected with the output end of A/D converting units
Main control module；Described load sensor includes tubular housing, the end cap for being connected to housing two ends, is arranged in housing
Elastic shaft and multiple resistance strain gages and the signal transmission unit being fixedly installed on elastic shaft outer wall, described elastic shaft
Two ends output shaft, the power input shaft of worm-type open-close machine respectively with motor be connected, described multiple resistance strain gages
Wheatstone bridge is constituted, described signal transmission unit, which includes, is fixedly installed on infrared emission annular on elastic shaft outer wall
Plate and the annular infrared receiver plate for being connected on end cap and being oppositely arranged with infrared emission plate, described infrared emission plate
On be provided with a circle infrared-emitting diode, described infrared receiver plate that to be provided with a circle relative with infrared-emitting diode
Infrared receiver triode, a described circle infrared-emitting diode and a circle infrared receiver triode is set with diameter, described
The output end of Wheatstone bridge is connected with infrared-emitting diode, input and the infrared receiver three of described signal condition unit
Pole pipe is connected；Described single-chip microcomputer main control module include singlechip chip, the reset circuit being connected respectively with singlechip chip,
Decoupling circuit and memory, described reset circuit include tantalum electric capacity C29 and resistance R4, tantalum electric capacity C29 one end and monolithic
The power pins VCC connections of movement piece, resistance R4 one end and ground connection, the tantalum electric capacity C29 other end, the resistance R4 other end are equal
It is connected with the RST pins of singlechip chip, described decoupling circuit includes decoupling capacitance, the two ends of decoupling capacitance are connected respectively
The power pins VCC of singlechip chip and ground connection.
Described load sensor also includes rotary transformer, the primary coil of rotary transformer and load sensor
Inner walls are fixedly connected, and secondary coil is fixed on elastic shaft and elastic shaft is rotated together with.
Eight resistance strain gages are fixedly installed on the outer wall of described elastic shaft, every four resistance strain gages constitute one
Wheatstone bridge and it is distributed along the even circumferential of elastic shaft, the output end of two Wheatstone bridges of eight resistance strain gages composition
It is connected with infrared-emitting diode.
The back-up ring of annular, described back-up ring and infrared emission are provided between described infrared emission plate and infrared receiver plate
Plate is fixedly connected, and the periphery of described back-up ring is provided with a circle teeth groove, the bottom plate of described teeth groove apart from the elastic shaft center of circle away from
From the distance less than the elastic shaft center of circle with a distance from infrared-emitting diode, and distance of the top apart from the elastic shaft center of circle of teeth groove is more than
Distance of the infrared-emitting diode apart from the elastic shaft center of circle.
Described signal condition unit selects wave filter.
Described A/D converting units include AD conversion chip, the pin 22 of AD conversion chip and drawing for singlechip chip
Pin 7 is connected, and the pin 23 of AD conversion chip is connected with the pin 6 of singlechip chip, the pin 24 and single-chip microcomputer of AD conversion chip
The pin 5 of chip is connected.
Advantage of the present utility model：
The utility model is simple in construction, easy for installation, and rotation inside load sensor is realized by rotary transformer coupling
The power supply of shifting circuit, photoelectric coupling mode realizes the non-contact transmission of loading amount electric signal.Due to the elastic shaft of load sensor
It is directly connected to the power output shaft of motor, in headstock gear lifting process, not only can accurately detects lotus weight change, moreover it is possible to
Play a part of shaft coupling simultaneously, install and easy to maintenance, change existing worm-type open-close machine loading amount and be difficult to accurate detection
Situation.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the mounting structure schematic diagram of the utility model load sensor.
Fig. 3 is the structural representation of the utility model load sensor.
Fig. 4 is the structural representation of the utility model infrared emission plate.
Fig. 5 is the structural representation of the utility model infrared receiver plate.
Fig. 6 is the structural representation of the utility model back-up ring.
Fig. 7 is the circuit diagram of the utility model single-chip microcomputer main control module.
Fig. 8 is the circuit diagram of the utility model A/D converting units.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
See Fig. 1 and Fig. 2, a kind of loading amount detecting device for worm-type open-close machine includes and is connected to motor 02
Output shaft and worm-type open-close machine 03 power input shaft between load sensor 01, input and load sensor 01 are defeated
Go out the wave filter 05 of end connection, the A/D converting units 06 being connected with the output end of wave filter 05 are defeated with A/D converting units 06
Go out the single-chip microcomputer main control module 07 of end connection；Wherein, the clutch end of worm-type open-close machine 03 is connected with gate 04；
The full payload that load sensor 01 is acted on when worm-type open-close machine 03 is worked on elastic shaft 23 is approximate by linear
The pick-up signal output of standard is converted to, after the filtered filtering transformation of device 05 processing of 0-5V signals of output, by A/D converting units
06 realizes AD conversion, and counting pulse signal accesses TIM1 and the TIM2 timing of single-chip microcomputer main control module 07 after logic level transition
Counter, by setting global step-by-step counting variable to realize that corresponding plus/minus is counted, while to realize detecting system to screw
The power-off of the loading information of headstock gear 03 keeps function, and the data related to loading amount are preserved and with backup battery pair using memory
Memory is powered, while the function such as man-machine interface and serial communication such as the necessary display of configuration, keyboard.
See Fig. 3, load sensor 01 includes tubular housing 21, the end cap 22 for being connected to the two ends of housing 21, is arranged at
Elastic shaft 23 in housing 21 and eight resistance strain gages 24 being fixedly installed on the outer wall of elastic shaft 23, signal transmission unit,
And rotary transformer, the power input of the output shaft, worm-type open-close machine 03 of the two ends of elastic shaft 23 respectively with motor 02
Axle is connected, and the primary coil 25 of rotary transformer is fixedly connected with the inwall of housing 21 of load sensor, and secondary coil 26 is fixed
Rotated together with elastic shaft 23 with elastic shaft 23, every four resistance strain gages 24 constitute a Wheatstone bridge and along elastic shaft
23 even circumferential distribution；Signal transmission unit, which includes, is fixedly installed on infrared emission plate 27 annular on the outer wall of elastic shaft 23
(see Fig. 4) and the annular infrared receiver plate 28 that is connected on end cap 22 and is oppositely arranged with infrared emission plate 27 are (see figure
5), it is provided with infrared emission plate 27 on a circle infrared-emitting diode 29, infrared receiver plate 28 and is provided with a circle and infrared hair
Penetrate the relative infrared receiver triode 210 of diode 29, the circle circle infrared receiver of infrared-emitting diode 29 and one triode 210
Set with diameter, the output end for two Wheatstone bridges that eight resistance strain gages 24 are constituted connects with infrared-emitting diode 29
Connect, the input of wave filter 05 is connected with infrared receiver triode 210；Wherein, infrared emission plate 27 and infrared receiver plate 28 it
Between be provided with the back-up ring 211 (see Fig. 6) of annular, back-up ring 211 is fixedly connected with infrared emission plate 27, the periphery setting of back-up ring 211
Have 60 teeth groove 212 of a circle, the distance of the bottom plate of teeth groove 212 apart from the center of circle of elastic shaft 23 be less than infrared-emitting diode 29 away from
With a distance from the center of circle of elastic shaft 23, and teeth groove 212 top apart from the center of circle of elastic shaft 23 distance be more than infrared-emitting diode
29 apart from the center of circle of elastic shaft 23 distance, i.e., the optical signal that infrared-emitting diode 29 is sent passed by the teeth groove 212 of back-up ring 211
Infrared receiver triode 210 is passed, for each revolution, each infrared receiver triode 210 receives 60 arteries and veins to elastic shaft 23
Rush signal；
The resistance strain gage 24 of 8 metals on elastic shaft 23 is used to sense the load suffered by elastic shaft 23, by resistance
Load is linearly transformed to differential millivolt signal by the Wheatstone bridge that foil gauge 24 is constituted, and passes through amplitude amplification and voltage/frequency
(V/F) the frequency signal driving transmitting pulse frequency infrared light of infrared-emitting diode 29, multiple infrared receiver triodes are converted to
The infrared light that 210 reception infrared-emitting diodes 29 are sent, the electricity for converting it to 0-5V is changed by voltage to frequency (F/V)
Pressure signal is externally exported.
See Fig. 7, single-chip microcomputer main control module 07 includes singlechip chip U1, the reset being connected respectively with singlechip chip U1
Circuit, decoupling circuit and memory U4；Reset circuit includes tantalum electric capacity C29 and resistance R4, tantalum electric capacity C29 one end and monolithic
Movement piece U1 power pins VCC connections, resistance R4 one end and ground connection, tantalum electric capacity the C29 other end, the resistance R4 other end
It is connected with singlechip chip U1 RST pins, realizes that singlechip chip U1 upper electricity automatically resets；Decoupling circuit, which includes, to move back
Coupling electric capacity C1, is the ceramic condenser that a capacity is 0.1uF, decoupling capacitance C1 two ends connect singlechip chip U1 electricity respectively
Source pin VCC and ground connection, play a part of isolating noise signal, memory U4 is external memory storage 24C16, it is therefore an objective to by some
The parameter relevant with system is preserved, and (is drawn by iic bus and singlechip chip U1 P0.0 (pin 39) and P0.1 pins
Pin 38) it is connected and transmits data.
See Fig. 8, A/D converting units include AD conversion chip U2, and AD conversion chip U2 uses 24 CS1232, often
Second most multipotency completes 80 conversions, is connected by universal serial bus with singlechip chip U1, AD conversion chip U2 pin 22 and
Singlechip chip U1 pin 7 is connected, and function is that control A/D chip enters park mode, AD conversion chip U2 pin 23 and list
The pin 6 of piece movement piece is connected, and function is that the clock signal that singlechip chip U1 is provided exports and gives AD conversion chip U2, AD conversion
The pin 24 of chip is connected with the pin 5 of singlechip chip, and function is after each AD conversion chip U2AD is converted, will to turn
Change result and be transferred to singlechip chip U1.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of loading amount detecting device for worm-type open-close machine, it is characterised in that：Include and be connected to the defeated of motor
Load sensor between shaft and the power input shaft of worm-type open-close machine, input is connected with load sensor output end
Signal condition unit, the A/D converting units being connected with the output end of signal condition unit connect with the output end of A/D converting units
The single-chip microcomputer main control module connect；Described load sensor includes tubular housing, the end cap for being connected to housing two ends, set
In the elastic shaft in housing and the multiple resistance strain gages and the signal transmission unit that are fixedly installed on elastic shaft outer wall, institute
Output shaft, the power input shaft of worm-type open-close machine of the two ends for the elastic shaft stated respectively with motor are connected, and described is multiple
Resistance strain gage constitute Wheatstone bridge, described signal transmission unit include be fixedly installed on it is annular on elastic shaft outer wall
Infrared emission plate and the annular infrared receiver plate for being connected on end cap and being oppositely arranged with infrared emission plate, described is red
It is provided with outer expelling plate on a circle infrared-emitting diode, described infrared receiver plate and is provided with a circle and the pole of infrared emission two
The relative infrared receiver triode of pipe, a described circle infrared-emitting diode is set with a circle infrared receiver triode with diameter
Put, the output end of described Wheatstone bridge is connected with infrared-emitting diode, the input of described signal condition unit with
Infrared receiver triode is connected；Described single-chip microcomputer main control module includes singlechip chip, is connected respectively with singlechip chip
Reset circuit, decoupling circuit and memory, described reset circuit includes tantalum electric capacity C29 and resistance R4, tantalum electric capacity C29's
One end and the power pins VCC connections of singlechip chip, resistance R4 one end and ground connection, tantalum electric capacity the C29 other end, resistance R4
The other end be connected with the RST pins of singlechip chip, described decoupling circuit includes decoupling capacitance, the two of decoupling capacitance
End connects power pins VCC and the ground connection of singlechip chip respectively.
2. a kind of loading amount detecting device for worm-type open-close machine according to claim 1, it is characterised in that：It is described
Load sensor also include rotary transformer, the primary coil of rotary transformer and the inner walls of load sensor are fixed
Connection, secondary coil is fixed on elastic shaft and elastic shaft is rotated together with.
3. a kind of loading amount detecting device for worm-type open-close machine according to claim 1, it is characterised in that：It is described
Elastic shaft outer wall on be fixedly installed eight resistance strain gages, every four resistance strain gages constitute a Wheatstone bridge and
It is distributed along the even circumferential of elastic shaft, the output end of two Wheatstone bridges of eight resistance strain gages composition is and infrared emission
Diode is connected.
4. a kind of loading amount detecting device for worm-type open-close machine according to claim 1, it is characterised in that：It is described
Infrared emission plate and infrared receiver plate between be provided with the back-up ring of annular, described back-up ring is fixedly connected with infrared emission plate,
The periphery of described back-up ring is provided with a circle teeth groove, and the distance of the bottom plate of described teeth groove apart from the elastic shaft center of circle is less than infrared hair
Penetrate distance of the diode apart from the elastic shaft center of circle, and distance of the top apart from the elastic shaft center of circle of teeth groove is more than the pole of infrared emission two
The distance in the pipe distance elastic shaft center of circle.
5. a kind of loading amount detecting device for worm-type open-close machine according to claim 1, it is characterised in that：It is described
Signal condition unit select wave filter.
6. a kind of loading amount detecting device for worm-type open-close machine according to claim 1, it is characterised in that：It is described
A/D converting units include AD conversion chip, the pin 22 of AD conversion chip is connected with the pin 7 of singlechip chip, AD turn
Change the pin 23 of chip to be connected with the pin 6 of singlechip chip, the pin 24 of AD conversion chip connects with the pin 5 of singlechip chip
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198453.9U CN206531564U (en) | 2017-03-02 | 2017-03-02 | A kind of loading amount detecting device for worm-type open-close machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720198453.9U CN206531564U (en) | 2017-03-02 | 2017-03-02 | A kind of loading amount detecting device for worm-type open-close machine |
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| Publication Number | Publication Date |
|---|---|
| CN206531564U true CN206531564U (en) | 2017-09-29 |
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ID=59918037
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720198453.9U Expired - Fee Related CN206531564U (en) | 2017-03-02 | 2017-03-02 | A kind of loading amount detecting device for worm-type open-close machine |
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| CN (1) | CN206531564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019141059A1 (en) * | 2018-01-16 | 2019-07-25 | 嘉兴礼海电气科技有限公司 | Telescopic structure capable of sensing load size |
-
2017
- 2017-03-02 CN CN201720198453.9U patent/CN206531564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019141059A1 (en) * | 2018-01-16 | 2019-07-25 | 嘉兴礼海电气科技有限公司 | Telescopic structure capable of sensing load size |
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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: 20170929 Termination date: 20180302 |
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| CF01 | Termination of patent right due to non-payment of annual fee |