CN209147917U - A kind of combined type linear movement pick-up - Google Patents
A kind of combined type linear movement pick-up Download PDFInfo
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- CN209147917U CN209147917U CN201821785300.5U CN201821785300U CN209147917U CN 209147917 U CN209147917 U CN 209147917U CN 201821785300 U CN201821785300 U CN 201821785300U CN 209147917 U CN209147917 U CN 209147917U
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- clockwork spring
- dial plate
- central axis
- shell
- linear movement
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Abstract
The utility model discloses a kind of combined type linear movement pick-ups, are mounted on expansion tank, including sensor body and the connector connecting with the piston in expansion tank.The sensor body includes shell, potentiometer, mechanical dial plate and the drum assembly being connect by wirerope with connector；The drum assembly includes central axis and fixed roller, the clockwork spring component being set on central axis；The roller is arranged in shell, the central axis both ends are pierced by shell and are fixedly connected respectively with the potentiometer, the clockwork spring component for being located at roller both sides, the machinery dial plate is fixed on central axis close to one end of clockwork spring component, and the potentiometer is connected with the socket of external power supply.There is the utility model mechanical instruction and electric signal to export the combined type linear movement pick-up of two functions simultaneously, and conveniently off normal inspection and ground maintenance eliminate dependence when offing normal inspection and ground maintenance to power supply unit.
Description
Technical field
The utility model relates to a kind of linear movement pick-up technical fields, and in particular to a kind of combined type displacement of the lines sensing
Device.
Background technique
Linear movement pick-up is the sensor for straight line mechanical displacement being converted into electric signal, and can detect has centainly
The component or equipment of straight line mechanical displacement in range.Usually variable resistance sliding rail fixation is passed through in the fixed position of sensor
The displacement of slide plate on the slide rail is to measure different resistance values.Sensor sliding rail connects steady-state DC voltage, allows to flow through micromicroampere
Low current, the voltage between slide plate and beginning is directly proportional to slide plate movable length.Sensor is used as divider can maximum limit
Degree reduces requirement to the total resistance value accuracy of sliding rail, ties because not interfering with to measure for change in resistance caused by by temperature change
Fruit.Traditional linear movement pick-up for straight-line displacement measurement in the prior art only has electric signal output function, insufficient
Place is dependence of the sensor to signal handling equipment, and signal handling equipment usually have with sensor mount position it is comparable
Distance, especially when offing normal inspection or ground maintenance, signal handling equipment needs stable power supply, and use, maintenance are very not
It is convenient.
Utility model content
The utility model is directed to the prior art, provides aircraft ring control to be used for, hydraulic system, while having mechanical instruction
The combined type linear movement pick-up of two functions is exported with electric signal, conveniently off normal inspection and ground maintenance eliminate inspection of offing normal
Look into when ground maintenance to the dependence of power supply unit.
The utility model is achieved through the following technical solutions: a kind of combined type linear movement pick-up is mounted on expansion tank,
Including sensor body and the connector being connect with the piston in expansion tank.The sensor body includes shell, potentiometer, machinery
Dial plate and the drum assembly being connect by wirerope with connector；The drum assembly includes that central axis and fixation are set in central axis
On roller, clockwork spring component；The roller is arranged in shell, and the central axis both ends are pierced by shell respectively and positioned at rolling
The potentiometer, the clockwork spring component on cylinder both sides are fixedly connected, and the machinery dial plate is fixed on central axis close to the one of clockwork spring component
End, the potentiometer are connected with the socket of external power supply.
The shell includes for installing potentiometric mounting plate and U-shaped of the mounting plate far from potentiometer side being arranged in
Shell, the mounting plate are connected with shell by fastening screw.The chamber of installation roller is provided between the mounting plate and shell
Body.Described central axis one end passes through mounting plate and is fixedly connected with potentiometric vernier, and the central axis and mounting plate are rotatablely connected；
The central axis passes through shell far from one end of mounting plate and connect with mechanical dial plate；The central axis and shell are rotatablely connected.Institute
It states and is provided with socket mounting base outside potentiometer, the socket mounting base is located on potentiometer；It is installed in the socket mounting base
There is the socket connecting with potentiometer circuit, is used for external power supply.
The machinery dial plate includes pointer and dial, the pointer and dial and central axis, the pointer
It is fixedly connected with central axis, is rotated with the rotation of central axis, the dial is not rotated with the rotation of central axis.Institute
It states and is provided with several scales arranged in a ring on dial.The pointer is located at side of the dial far from roller and and scale
Disk is parallel to each other.
Between the clockwork spring component setting shell and mechanical dial plate, for generating torque when connector is subjected to displacement, guarantee
Connector is resetted after can stretching out under external force by itself torque.
Since the instruction of straight-line displacement amount can be realized without power supply in mechanical dial plate, when there is no power supply unit and letter
When number processing equipment, roller, central axis and mechanical dial plate can also be with complete independently displacement measurement and instructions.
Further, the clockwork spring component includes the spiral helicine tension spring of clockwork spring core, going barrel and encirclement clockwork spring core, described
Coaxially fixation is set on central axis clockwork spring core, and the going barrel is fixed on surface of shell and is coaxially disposed with clockwork spring core；It is described
Tension spring one end is fixed on clockwork spring core, and the tension spring is fixed on the inner wall of going barrel far from one end of clockwork spring core.
Further, one end that the central axis is connect with mechanical dial plate is arranged with rotate gear；The machinery dial plate is also
Including dial plate gear and connecting shaft, the dial plate gear is set in one end of connecting shaft and the dial plate gear is nibbled with rotate gear
It closes；The connecting shaft is pierced by dial far from dial plate gear one end and is fixedly connected with pointer.
Further, the mechanical dial plate further includes the train of reduction gears engaged respectively with rotate gear, dial plate gear.It is logical
Train of reduction gears is crossed, the measurement range of mechanical dial plate can be expanded.
Further, the mechanical panel surface is covered with outer cover, corresponds to dial on the outer cover and is provided with transparent material
Expect the reading window of preparation；The outer cover is connect by fastening screw with shell, for protecting mechanical dial plate and clockwork spring component.
Further, the connector is quick coupling, is easy to implement the quick connection of connector and plinth and quickly dismantles.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) a kind of combined type linear movement pick-up provided by the utility model uses two kinds of entirely different position instructions
Mechanism completes the measurement instruction of straight-line displacement, can mutually form double redundancy, improve the reliability of product.
(2) a kind of combined type linear movement pick-up provided by the utility model is reduced to greatest extent to the total resistance value of potentiometer
The requirement of accuracy, because not interfering with measurement result for change in resistance caused by by temperature change.Machinery instruction function is complete
It is realized by mechanical structure, without thermally sensitive factor and component.Therefore mechanical instruction function of the invention and electric signal
Output function has very high stability to temperature.
(3) a kind of combined type linear movement pick-up provided by the utility model eliminates when offing normal inspection and ground maintenance
Dependence to power supply unit.Due to that can check the instruction of pointer on outer cover by visual observation, solve in cold situation
There is no power supply unit can not judgement part displacement or the problem of location status.The efficiency of device ground maintenance can be greatly improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view of the utility model；
Fig. 3 is that the utility model is mounted on the structural schematic diagram on expansion tank；
Wherein: 100-expansion tanks, 101-pistons, 102-plinths, 1-shell, 2-potentiometers, 3-mechanical dial plates,
31-dial plate gears, 32-connecting shafts, 33-pointers, 34-dials, 4-drum assemblies, 41-central axises, 42-clockwork groups
Part, 421-clockwork spring cores, 422-going barrels, 423-tension springs, 43-rollers, 5-wirerope, 6-rotate gears, 7-reducing gears
Wheel group, 8-outer covers, 9-plugs, 10-connectors.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Embodiment 1
As shown in Fig. 1 ~ 3, a kind of combined type linear movement pick-up is mounted on expansion tank 100, including sensor body and
The connector 10 being connect with the piston 101 in expansion tank 100.The sensor body includes shell 1), potentiometer 2, mechanical dial plate 3
With the drum assembly 4 being connect by wirerope 5 with connector 10；The drum assembly 4 includes central axis 41 and fixed is set in
Roller 43, clockwork spring component 42 in mandrel 41；The roller 43 is arranged in shell 1, and 41 both ends of central axis are pierced by
Shell 1 is fixedly connected with the potentiometer 2, the clockwork spring component 42 for being located at 43 both sides of roller respectively, and the machinery dial plate 3 is fixed on
Central axis 41 is connected with the socket of external power supply close to one end of clockwork spring component 42, the potentiometer 2.
The shell 1 includes for installing the mounting plate of potentiometer 2 and U of the mounting plate far from 2 side of potentiometer being arranged in
The shell of shape, the mounting plate are connected with shell by fastening screw.Installation roller is provided between the mounting plate and shell
43 cavity.Described 41 one end of central axis passes through mounting plate and is fixedly connected with the vernier of potentiometer 2, the central axis 41 and installation
Plate rotation connection；The central axis 41 passes through shell far from one end of mounting plate and connect with mechanical dial plate 3；The central axis 41 with
Shell rotation connection.It is provided with socket mounting base outside the potentiometer 2, the socket mounting base is located on potentiometer 2；It is described
Socket with 2 circuit connection of potentiometer is installed in socket mounting base, is used for external power supply.
The machinery dial plate 3 includes pointer 33 and dial 34, and the pointer 33 and dial 34 hang down with central axis 41
Directly, the pointer 33 is fixedly connected with central axis 41, is rotated with the rotation of central axis 41, the dial 34 is not in
The rotation of mandrel 41 and rotate.Several scales arranged in a ring are provided on the dial 34.The pointer 33, which is located at, to be carved
It side of the scale 34 far from roller 43 and is parallel to each other with dial 34.
The clockwork spring component 42 is arranged between shell and mechanical dial plate 3, for generating torque when connector 10 is subjected to displacement,
Guarantee to reset after connector 10 can stretch out under external force by itself torque.
The piston 101 is far from plinth 102 is provided on the side of fluid, for connecting with connector 10；The steel wire
One end of rope 5 is fixedly connected with connector 10, and the other end of wirerope 5 is fixedly connected on roller 43.In use, connector
10 connect with plinth 102, and as the fluid volume in expansion tank 100 changes, the position of piston 101 changes therewith, with
The roller 43 that wirerope 5 connects rotates, and central axis 41 rotates with it, and the vernier of the potentiometer 2 of 41 one end of central axis is therewith
It rotates, converts straight-line displacement amount to the mechanical angular displacement of rotation, electric signal is then converted by potentiometer 2 again, then
Signal is exported by socket；The pointer 33 of the other end connection of central axis 41 is rotated with the rotation of central axis 41, is passed through
Scale on 33 indication dial disc 34 of pointer obtains straight-line displacement amount.
Since the instruction of straight-line displacement amount can be realized without power supply in mechanical dial plate 3, when there is no power supply unit and letter
When number processing equipment, roller 43, central axis 41 and mechanical dial plate 3 can also be with complete independently displacement measurement and instructions.
Embodiment 2
The present embodiment is to improve on the basis of embodiment 1, is theed improvement is that: the clockwork spring component 42 includes
Clockwork spring core 421, going barrel 422 and the spiral helicine tension spring 423 for surrounding clockwork spring core 421, coaxially fixation is arranged the clockwork spring core 421
On central axis 41, the going barrel 422 is fixed on 1 surface of shell and is coaxially disposed with clockwork spring core 421；The tension spring 423 1
End is fixed on clockwork spring core 421, and the tension spring 423 is fixed on the inner wall of going barrel 422 far from one end of clockwork spring core 421.
One end that the central axis 41 is connect with mechanical dial plate 3 is arranged with rotate gear 6；It is described machinery dial plate 3 further include
Dial plate gear 31 and connecting shaft 32, the dial plate gear 31 are set in one end of connecting shaft 32 and the dial plate gear 31 and rotation
Gear 6 engages；The connecting shaft 32 is pierced by dial 34 far from 31 one end of dial plate gear and is fixedly connected with pointer 33.
Other parts are substantially the same manner as Example 1 in the present embodiment, therefore no longer repeat one by one.
Embodiment 3
The present embodiment is improved on the basis of embodiment 2, is theed improvement is that: the machinery dial plate 3 also wraps
Include the train of reduction gears 7 engaged respectively with rotate gear 6, dial plate gear 31.By train of reduction gears 7, stem-winder can be expanded
The measurement range of disk 3.
The train of reduction gears 7 includes transmission gear and speed reducing gear pair, and the speed reducing gear pair includes coaxial arrangement
Gear wheel and pinion gear, the gear wheel and pinion gear are rotated with identical angular speed.The gear wheel is nibbled with rotate gear 6
It closes, the pinion gear is engaged with transmission gear, and the side of the transmission gear principle pinion gear is engaged with dial plate gear 31.Center
When axis 41 rotates, the rotate gear 6 is rotated with it, and the rotation after reduction gearing adjutant is slowed down is transmitted by transmission gear
Deceleration transmission is realized to dial plate gear 31.
Other parts are substantially the same manner as Example 2 in the present embodiment, therefore no longer repeat one by one.
Embodiment 4
The present embodiment is improved on the basis of 1 ~ 3 any embodiment of embodiment, is theed improvement is that: the machine
3 face cap of tool dial plate is equipped with outer cover 8, and the reading window that dial 34 is provided with transparent material preparation is corresponded on the outer cover 8；Institute
It states outer cover 8 to connect by fastening screw with shell 1, for protecting mechanical dial plate 3 and clockwork spring component 42.
The connector 10 is quick coupling.The quick coupling is preferably spring quick coupling, i.e., is arranged inside connector 10
There is center-pole, the center-pole surrounding is provided with multiple compressed springs along the circumferential uniformly outside radiation profile of 10 axis of connector,
One end of the separate central axis 41 of the compressed spring is fixedly installed with gag lever post, and the gag lever post is pierced by the side wall of connector 10
Form retention bead.Retention bead, which is corresponded to, on the side wall of the plinth 102 is provided with several card holes.When quick coupling 10 is inserted into
After plinth 102, under compressed spring effect, gag lever post forms stable clamping structure from being caught in card hole.When needs exit
When connector 10, the gag lever post protruded in card hole, compressed spring compression are pressed, gag lever post exits card hole, connector 10 can be realized
It exits.
Other parts and 1 ~ 3 any embodiment are essentially identical in the present embodiment, therefore no longer repeat one by one.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the protection scope of the utility model.
Claims (6)
1. a kind of combined type linear movement pick-up is mounted on expansion tank (100), including sensor body and and expansion tank
(100) connector (10) of piston (101) connection in, which is characterized in that the sensor body includes shell (1), potentiometer
(2), mechanical dial plate (3) and the drum assembly (4) being connect by wirerope (5) with connector (10)；The drum assembly (4) includes
Central axis (41) and fixed roller (43), the clockwork spring component (42) being set on central axis (41)；Roller (43) setting exists
In shell (1), central axis (41) both ends are pierced by shell (1) and connect respectively with the potentiometer (2), clockwork spring component (42)
It connects, the potentiometer (2), clockwork spring component (42) are located at roller (43) two sides, and the machinery dial plate (3) is fixed on central axis
(41) close to the one end of clockwork spring component (42), the potentiometer (2) is connected with the socket of external power supply.
2. a kind of combined type linear movement pick-up according to claim 1, it is characterised in that: clockwork spring component (42) packet
Include the spiral helicine tension spring (423) of clockwork spring core (421), going barrel (422) and encirclement clockwork spring core (421), the clockwork spring core (421)
Coaxial fixation is set on central axis (41), and the going barrel (422) is fixed on shell (1) surface and same with clockwork spring core (421)
Axis setting；Described tension spring (423) one end is fixed on clockwork spring core (421), and the one of the tension spring (423) separate clockwork spring core (421)
End is fixed on the inner wall of going barrel (422).
3. a kind of combined type linear movement pick-up according to claim 2, it is characterised in that: the central axis (41) and machine
One end of tool dial plate (3) connection is arranged with rotate gear (6)；The machinery dial plate (3) includes dial plate gear (31), connecting shaft
(32), pointer (33) and dial (34), the dial plate gear (31) are set in one end of connecting shaft (32) and the dial plate tooth
Wheel (31) is engaged with rotate gear (6)；The connecting shaft (32) is pierced by dial (34) far from dial plate gear (31) one end and refers to
Needle (33) is fixedly connected, and the pointer (33) is mutually perpendicular to connecting shaft (32) and is parallel to each other with dial (34) surface.
4. a kind of combined type linear movement pick-up according to claim 3, it is characterised in that: the machinery dial plate (3) is also
Including the train of reduction gears (7) engaged respectively with rotate gear (6), dial plate gear (31).
5. described in any item a kind of combined type linear movement pick-ups according to claim 1 ~ 4, it is characterised in that: the stem-winder
Disk (3) face cap is equipped with outer cover (8), and the reading window that dial (34) is provided with transparent material preparation is corresponded on the outer cover (8)
Mouthful；The outer cover (8) is connect by fastening screw with shell (1).
6. described in any item a kind of combined type linear movement pick-ups according to claim 1 ~ 4, it is characterised in that: the connector
(10) it is quick coupling (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785300.5U CN209147917U (en) | 2018-10-31 | 2018-10-31 | A kind of combined type linear movement pick-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785300.5U CN209147917U (en) | 2018-10-31 | 2018-10-31 | A kind of combined type linear movement pick-up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209147917U true CN209147917U (en) | 2019-07-23 |
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ID=67271848
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821785300.5U Active CN209147917U (en) | 2018-10-31 | 2018-10-31 | A kind of combined type linear movement pick-up |
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| CN (1) | CN209147917U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461325A (en) * | 2020-11-13 | 2021-03-09 | 四川泛华航空仪表电器有限公司 | Cooling liquid volume sensor for measuring volume of cooling liquid tank |
-
2018
- 2018-10-31 CN CN201821785300.5U patent/CN209147917U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112461325A (en) * | 2020-11-13 | 2021-03-09 | 四川泛华航空仪表电器有限公司 | Cooling liquid volume sensor for measuring volume of cooling liquid tank |
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