CN207456477U - A kind of water proof type rotary encoder - Google Patents
A kind of water proof type rotary encoder Download PDFInfo
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- CN207456477U CN207456477U CN201721521907.8U CN201721521907U CN207456477U CN 207456477 U CN207456477 U CN 207456477U CN 201721521907 U CN201721521907 U CN 201721521907U CN 207456477 U CN207456477 U CN 207456477U
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Abstract
The utility model provides a kind of water proof type rotary encoder,Continuous detection to displacement under water can be realized by sealed shell of tank and magnetic-coupled mode,Including weather proof receptacle,Sealed shell of tank,Seal can end,Internal magnet,External magnet,Rotating wheel,Transmission shaft and rotary encoder main body,Sealed shell of tank bottom is equipped with through hole,Weather proof receptacle is arranged on through hole,Sealing can end is connected with sealed shell of tank openend,It seals can end one side and is equipped with multi-diameter shaft,Opposite side opens up groove,Transmission shaft one end is arranged in groove and is connected with internal magnet,The other end connects the input shaft of rotary encoder main body,Rotary encoder main body output terminal connects weather proof receptacle by conducting wire,The ladder outer shaft sleeve of sealing can end sets external magnet mounting base,The external magnet mounting base inner wall position opposite with the internal magnet in groove is fixed with external magnet,Rotating wheel is set on the multi-diameter shaft of sealing can end,And it is fixedly connected with external magnet mounting base end,Rotating wheel can be turned round compared with multi-diameter shaft.
Description
Technical field
The utility model is related to rotary encoder technical fields, are specially a kind of water proof type rotary encoder.
Background technology
Application of the displacement measurement in engineering is very extensive, is not only because and is frequently necessary to accurately survey in various engineerings
Displacement or the position of object are measured, but also because of parameters such as speed, acceleration, power, pressure, torque, temperature, flow and object positions
Many test methods are all based on displacement measurement.
At present, on the market to the measurement of straight-line displacement mainly by magneto strictive sensor, draw wire encoder and laser displacement
Sensor is realized, but these types of mode has the drawbacks of very big.
First, although magneto strictive sensor can be encapsulated to achieve the purpose that waterproof, its single measurement distance
It is shorter, only several meters of maximum, and for tens meters even up to a hundred meters of measurement, it must just measure, thus cause several times
The accumulation of error makes measurement result inaccurate, and the magneto strictive sensor after encapsulation is larger, is unfavorable for answering among reality
With.
Secondly, draw wire encoder is difficult that encapsulation achievees the purpose that waterproof, and its single measurement distance is also shorter, faces
Compared with long displacement measurement when must also be performed in multiple times, can equally cause the accumulation of error so that measurement result is inaccurate.
Finally, although laser has the good good characteristic of straightness, for short essay (within 1 meter) accuracy of measurement compared with
It is high.But it is larger with regard to very complicated and volume for the laser generator of the measurement needs of long displacement, and be difficult that encapsulation is anti-
Water is unfavorable for actually using, therefore the application requirement of laser displacement sensor is harsher.
It is blank out in the market in conclusion at present for being device waterproof and that long displacement can be measured, it is this anti-
Water type rotary encoder has extensive market prospects.
Utility model content
The utility model provides a kind of water proof type rotary encoder, can be real by sealed shell of tank and magnetic-coupled mode
The present continuous detection to displacement under water.
The technical solution of the utility model is：Including weather proof receptacle, sealed shell of tank, sealing can end, internal magnet, outer magnetic
Iron, rotating wheel, transmission shaft and rotary encoder main body, the sealed shell of tank bottom are equipped with through hole, and weather proof receptacle is arranged on through hole,
Sealing can end is connected with sealed shell of tank openend, and sealing can end one side is equipped with multi-diameter shaft, and opposite side opens up groove, the biography
Moving axis one end is arranged in the groove and is connected with internal magnet, and the other end connects the input shaft of rotary encoder main body, and rotation is compiled
Code device main body output terminal connects weather proof receptacle by conducting wire, and the ladder outer shaft sleeve of the sealing can end sets external magnet mounting base,
The external magnet mounting base inner wall position opposite with the internal magnet in groove is fixed with external magnet, and the rotating wheel is set in hermetically sealed can
It on the multi-diameter shaft of end cap, and is fixedly connected with external magnet mounting base end, rotating wheel can be turned round compared with multi-diameter shaft.
As the preferred of said program, the open end of the sealed shell of tank and the slot opening end face of sealing can end are equal
With flange arrangement, sealed shell of tank is fixedly connected with sealing can end by flange arrangement and bolt, the sealing can end
End face of flange has an annular convex platform, and the annular convex platform outer diameter is equal with sealed shell of tank internal diameter, the outside of the annular convex platform
Face is equipped with a plurality of annular groove, and ring type seal is equipped in the annular groove.
As the preferred of said program, encoder main body mounting base, the encoder main body are equipped in the sealed shell of tank
Mounting base is fixedly connected with sealed shell of tank and/or sealing can end, and encoder main body mounting base center is equipped with through hole, the transmission
Axis passes through the through hole, and one end stretches to the groove in sealing can end, other end connection rotary encoder main body input shaft, institute
The outer housing end face for stating rotary encoder main body is bonded with encoder main body mounting base end face.
As the preferred of said program, internal magnet fixed seat is equipped in the groove of the sealing can end, internal magnet is fixed
A through hole is equipped in seat, the transmission shaft passes through the through hole, and the internal magnet fixed seat lateral wall is equipped with one or more groups of interior magnetic
Iron group, every group of internal magnet group include multiple internal magnets, are distributed uniformly and circumferentially.
As the preferred of said program, the sealing can end is an integral structure with multi-diameter shaft, the external magnet installation
Cover for seat is located at outside multi-diameter shaft, there is interval between external magnet mounting base inner wall and multi-diameter shaft, and external magnet mounting base inner wall is installed with ring
Shape structure external magnet fixed seat, the external magnet fixed seat madial wall are equipped with one or more groups of external magnet groups, every group of external magnet group
It including multiple external magnets, is distributed uniformly and circumferentially, and internal magnet and external magnet are just opposite.
As the preferred of said program, on the multi-diameter shaft in addition to the shaft part opposite with inside/outside magnet, equal fixing sleeve is equipped with
Copper sheathing, the external magnet mounting base end face are bonded with the end face of flange in sealing can end, and the other end is fixedly connected with rotating wheel,
Copper sheathing also is provided between the rotating wheel inner circle and multi-diameter shaft outer wall.
As the preferred of said program, the shaft part outer wall away from flange arrangement is equipped with external screw thread on the multi-diameter shaft, and matches somebody with somebody
Trap is equipped with nut, and the nut outer diameter is more than rotating wheel internal diameter.
As the preferred of said program, the sealing can end bottom is equipped with a blind hole, the encoder main body mounting base
Through hole one end offer ring-shaped step, be equipped with bearing in the blind hole and ring-shaped step, the bearing and transmission axis connection.
The beneficial effects of the utility model are：Encoder main body is placed on sealing by the rotary encoder of said structure
It in tank body, is isolated from the outside world, realizes to water-proof function, while use magnetic coupling mode, realize the linkage of tank body external and internal compositions, from
And the displacement signal outside sealed shell of tank is made to be transferred on the in vivo encoder main body of hermetically sealed can, with reach the function of displacement detecting its
It is simple in structure, but solve the problems, such as that rotary encoder can not be detected under water.
Description of the drawings
Fig. 1 is the internal structure sectional view of the utility model.
Fig. 2 is distribution schematic diagram of the internal magnet in internal magnet fixed seat in the utility model.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with attached drawing.
The structure of the present embodiment includes weather proof receptacle 1, sealed shell of tank 2, sealing can end 4, internal magnet 12, external magnet
11st, rotating wheel 6, transmission shaft 14 and rotary encoder main body 17,2 bottom of sealed shell of tank are equipped with through hole, and weather proof receptacle 1 is arranged on
Through hole, sealing can end 4 are connected with 2 openend of sealed shell of tank, and 4 one side of sealing can end is equipped with multi-diameter shaft 18, and opposite side is opened
If groove, described 14 one end of transmission shaft is arranged in the groove and is connected with internal magnet 12, other end connection rotary encoder master
The input shaft of body 17,17 output terminal of rotary encoder main body connect weather proof receptacle 1, the rank of the sealing can end 4 by conducting wire
Terraced outer shaft sleeve sets external magnet mounting base 5, and 5 inner wall of the external magnet mounting base position opposite with the internal magnet 12 in groove is fixed with outer
Magnet 11, the rotating wheel 6 is set on the multi-diameter shaft 8 of sealing can end 4, and is fixedly connected with 5 end of external magnet mounting base,
Rotating wheel 6 can be turned round compared with multi-diameter shaft 8.
In the present embodiment, the slot opening end face of the open end of the sealed shell of tank 2 and sealing can end 4 is respectively provided with
Flange arrangement, sealed shell of tank 2 are fixedly connected with sealing can end 4 by flange arrangement and bolt, the method for the sealing can end 4
Blue end face has an annular convex platform, and the annular convex platform outer diameter is equal with 2 internal diameter of sealed shell of tank, the lateral surface of the annular convex platform
Equipped with a plurality of annular groove, ring type seal 3 is equipped in the annular groove.
In the present embodiment, encoder main body mounting base 16, the encoder main body installation are equipped in the sealed shell of tank 2
Seat 16 is fixedly connected with sealed shell of tank 2 and/or sealing can end 4, and 16 center of encoder main body mounting base is equipped with through hole, the biography
Moving axis 14 passes through the through hole, and one end stretches to the groove in sealing can end 4, and other end connection rotary encoder main body 17 is defeated
Enter axis, the outer housing end face of the rotary encoder main body 17 is bonded with 16 end face of encoder main body mounting base.
In the present embodiment, internal magnet fixed seat 13, internal magnet fixed seat 13 are equipped in the groove of the sealing can end 4
A through hole is inside equipped with, the transmission shaft 14 passes through the through hole, and 13 lateral wall of internal magnet fixed seat is equipped in one or more groups of
Group of magnets, every group of internal magnet group include multiple internal magnets 12, are distributed uniformly and circumferentially, as shown in Figure 2.
In the present embodiment, the sealing can end 4 is an integral structure with multi-diameter shaft 8,5 sets of the external magnet mounting base
It is located at outside multi-diameter shaft 8, there is interval between 5 inner wall of external magnet mounting base and multi-diameter shaft 8,5 inner wall of external magnet mounting base is installed with ring
11 fixed seat of shape structure external magnet, 10 madial wall of external magnet fixed seat are equipped with one or more groups of external magnet groups, every group of outer magnetic
Iron group includes multiple external magnets 11, is distributed uniformly and circumferentially, and internal magnet 12 and external magnet 11 are just opposite.
In the present embodiment, on the multi-diameter shaft 8 in addition to the shaft part opposite with inside/outside magnet, equal fixing sleeve is equipped with copper sheathing
9,5 end face of external magnet mounting base is bonded with the end face of flange in sealing can end 4, and the other end is fixedly connected with rotating wheel 6,
Copper sheathing 8 also is provided between 6 inner circle of rotating wheel and 8 outer wall of multi-diameter shaft.
In the present embodiment, the shaft part outer wall away from flange arrangement is equipped with external screw thread on the multi-diameter shaft 8, and coordinates and be arranged
There is nut 7,7 outer diameter of nut is more than 6 internal diameter of rotating wheel.
In the present embodiment, 4 bottom of the sealing can end is equipped with a blind hole, and the encoder main body mounting base 16 is led to
Hole one end offers ring-shaped step, and bearing 15 is equipped in the blind hole and ring-shaped step, and the bearing 15 connects with transmission shaft 14
It connects.
The operation principle of said structure is as follows：
1. waterproof pressure
Waterproof pressure is realized mainly by weather proof receptacle 1, sealed shell of tank 2, sealing ring, sealing can end 4.Weather proof receptacle 1
It is tightly connected with sealed shell of tank 2；Sealed shell of tank 2 and sealing can end 4 are tightly connected by sealing ring.Being tightly connected twice can be
A closed space is formed in sealed shell of tank 2, so as to achieve the purpose that waterproof pressure.
2nd, displacement continuously measures
Continuously measurement is mainly realized by the way that straight-line displacement is converted into angular displacement for displacement, when straight line external force drags rotating wheel
6 when being rotated, and rotating wheel 6 rotates the rotation for driving the external magnet mounting base 5 being attached thereto, so as to drive external magnet 11
It rotates, external magnet 11 makes internal magnet 12 be rotated synchronously under the action of magnetic force, the rotation of internal magnet 12 by magnetic-coupled mode
Internal magnet fixed seat 13 is driven to rotate, the rotation of internal magnet fixed seat 13 drives transmission shaft 14 to rotate, and transmission shaft 14 is compiled with rotation
Code device main body 17 connects, and so as to which angular displacement information is transferred in rotary encoder by transmission shaft 14, rotary encoder is again by angle position
Shifting signal is output to external device by weather proof receptacle 1.
The hermetically sealed can that weather proof receptacle 1, sealed shell of tank 2, sealing ring, sealing can end 4 form in whole process remains stationary as,
Weather proof receptacle 1, sealed shell of tank 2 and sealing can end 4 are sealed by sealing ring；17 mounting base of rotary encoder main body and
17 outer housing of rotary encoder main body also remains stationary as, and the input shaft of rotary encoder is rotated with transmission shaft 14, to realize
The signal of angular displacement transfers.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of water proof type rotary encoder, it is characterised in that：Including weather proof receptacle, sealed shell of tank, sealing can end, interior magnetic
Iron, external magnet, rotating wheel, transmission shaft and rotary encoder main body, the sealed shell of tank bottom are equipped with through hole, and weather proof receptacle is arranged on
Through hole, sealing can end are connected with sealed shell of tank openend, and sealing can end one side is equipped with multi-diameter shaft, and opposite side opens up recessed
Slot, described transmission shaft one end are arranged in the groove and are connected with internal magnet, and the other end connects the input of rotary encoder main body
Axis, rotary encoder main body output terminal connect weather proof receptacle by conducting wire, and the ladder outer shaft sleeve of the sealing can end sets outer magnetic
Iron mounting base, the external magnet mounting base inner wall position opposite with the internal magnet in groove are fixed with external magnet, the rotation wheel case
It is located on the multi-diameter shaft of sealing can end, and is fixedly connected with external magnet mounting base end, rotating wheel can be compared with multi-diameter shaft
Revolution.
2. water proof type rotary encoder according to claim 1, it is characterised in that：The open end of the sealed shell of tank and
The slot opening end face of sealing can end is respectively provided with flange arrangement, and sealed shell of tank passes through flange arrangement and bolt with sealing can end
It is fixedly connected, the end face of flange of the sealing can end has an annular convex platform, in the annular convex platform outer diameter and sealed shell of tank
Footpath is equal, and the lateral surface of the annular convex platform is equipped with a plurality of annular groove, and ring type seal is equipped in the annular groove.
3. water proof type rotary encoder according to claim 2, it is characterised in that：Encoder is equipped in the sealed shell of tank
Main body mounting base, the encoder main body mounting base are fixedly connected with sealed shell of tank and/or sealing can end, encoder main body peace
It fills seat center and is equipped with through hole, the transmission shaft passes through the through hole, and one end stretches to the groove in sealing can end, and the other end connects
Rotary encoder main body input shaft is connect, outer housing end face and the encoder main body mounting base end face of the rotary encoder main body are pasted
It closes.
4. water proof type rotary encoder according to claim 1, it is characterised in that：It is set in the groove of the sealing can end
There is internal magnet fixed seat, a through hole is equipped in internal magnet fixed seat, the transmission shaft passes through the through hole, the internal magnet fixed seat
Lateral wall is equipped with one or more groups of internal magnet groups, and every group of internal magnet group includes multiple internal magnets, be distributed uniformly and circumferentially.
5. water proof type rotary encoder according to claim 4, it is characterised in that：It is described sealing can end be with multi-diameter shaft
Integral structure, the external magnet mounting base are set in outside multi-diameter shaft, have interval between external magnet mounting base inner wall and multi-diameter shaft,
External magnet mounting base inner wall is installed with loop configuration external magnet fixed seat, and the external magnet fixed seat madial wall is equipped with one group or more
Group external magnet group, every group of external magnet group include multiple external magnets, are distributed uniformly and circumferentially, and internal magnet and external magnet positive
It is right.
6. water proof type rotary encoder according to claim 5, it is characterised in that：It is removed and inside/outside magnetic on the multi-diameter shaft
Outside the shaft part of iron phase pair, equal fixing sleeve is equipped with copper sheathing, the external magnet mounting base end face and the flange end in sealing can end
Face paste is closed, and the other end is fixedly connected with rotating wheel, copper sheathing also is provided between the rotating wheel inner circle and multi-diameter shaft outer wall.
7. water proof type rotary encoder according to claim 6, it is characterised in that：Away from flange arrangement on the multi-diameter shaft
Shaft part outer wall be equipped with external screw thread, and engagement sleeves be equipped with nut, the nut outer diameter be more than rotating wheel internal diameter.
8. water proof type rotary encoder according to claim 4, it is characterised in that：The sealing can end bottom is equipped with one
Blind hole, through hole one end of the encoder main body mounting base offer ring-shaped step, are equipped on the blind hole and ring-shaped step
Bearing, the bearing and transmission axis connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521907.8U CN207456477U (en) | 2017-11-15 | 2017-11-15 | A kind of water proof type rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721521907.8U CN207456477U (en) | 2017-11-15 | 2017-11-15 | A kind of water proof type rotary encoder |
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| Publication Number | Publication Date |
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| CN207456477U true CN207456477U (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721521907.8U Active CN207456477U (en) | 2017-11-15 | 2017-11-15 | A kind of water proof type rotary encoder |
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| Country | Link |
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| CN (1) | CN207456477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955619A (en) * | 2018-08-05 | 2018-12-07 | 北京金钢科技有限公司 | Suspension-type waterproof compact encoder |
-
2017
- 2017-11-15 CN CN201721521907.8U patent/CN207456477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955619A (en) * | 2018-08-05 | 2018-12-07 | 北京金钢科技有限公司 | Suspension-type waterproof compact encoder |
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