CN202404112U

CN202404112U - Rotary encoder

Info

Publication number: CN202404112U
Application number: CN2011205602042U
Authority: CN
Inventors: 王建新
Original assignee: WENZHOU QIXI ELECTRICAL APPLIANCE TECHNOLOGY CO LTD
Current assignee: WENZHOU QIXI ELECTRICAL APPLIANCE TECHNOLOGY CO LTD
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2012-08-29
Anticipated expiration: 2021-12-27

Abstract

The utility model discloses a rotary encoder. The rotary encoder comprises a sealing shell, a spindle, a metal grating disk sleeved outside the spindle and a circuit board arranged in the sealing shell, wherein a frame, a positioning piece and an inverted term are sleeved outside the spindle; the positioning piece and the inverted term are respectively butted against both sides of the metal grating disk; the metal grating disk comprises a movable grating disk and a still grating disk; and a transmitting tube and a receiving silicon light module are arranged on the circuit board. The rotary encoder has the advantages of convenience in assembly, stronger vibration resistance, stable performance and higher precision.

Description

Rotary encoder

Technical field

The utility model relates to a kind of scrambler, relates in particular to a kind of rotary encoder.

Background technology

Scrambler (encoder) is that signal (like bit stream) or data are worked out, converted into can be in order to communication, transmission signals form of device, and it carries out layout according to certain rule, thereby form different codes for the electronic component of output control signal.

Rotary encoder is a type in the scrambler, and it is the device that is used for measuring rotating speed, converts pulse electrical signal output into through the anglec of rotation of measurement testee and with the anglec of rotation that measures.

Rotary encoder generally uses on products such as wireless telecommunications, household electrical appliance, instrument and meter, medicine equipment, body-building equipment, automobile and sound equipment.The rotary encoder of prior art, its structural design is reasonable inadequately, assembling is inconvenience comparatively, and the anti-shake performance of rotary encoder a little less than, cause function to damage easily, the life-span is used in influence in fact.Existing in addition rotary encoder all is short of aspect performance and precision to some extent, therefore is necessary rotary encoder of the prior art is improved.

The utility model content

The purpose of the utility model is, a kind of rotary encoder is provided, and it is easy to assembly, anti-shake performance is stronger, and stable performance, and precision is higher.

For realizing above-mentioned purpose; The utility model provides a kind of rotary encoder; Comprise: can, main shaft, be sheathed on the metal grating dish in the main shaft outside and be located at the circuit board in the can, the said main shaft outside is arranged with frame, keeper, and falls, this keeper with fall item and be resisted against metal grating dish both sides respectively; This metal grating dish comprises moving grating dish, reaches quiet grating dish, and circuit board is provided with power valve and receives the silicon optical module.

Wherein, also be provided with the cable sheath on the said can, be provided with cable in this cable sheath, this cable one end and circuit board electrically connect.

Be arranged with two bearings between the said main shaft outside and the frame, be provided with back-up ring outside the bearing away from the metal grating dish, this back-up ring is located on the main shaft outside.

Frame comprises the mainframe that is sheathed on the main shaft outside successively, and random frame, and keeper is located between random frame and the main shaft.

The keeper of the utility model is a metallic positioning, and circuit board adopts the plastic-steel insulating material to make and forms.

In the utility model, said fall is located on the main shaft, should fall to comprise an annulus and is uniformly distributed in annulus one side and to several outstanding barbs of annular radii direction, this annulus and moving grating dish lean.

Said circuit board is a printed circuit board (PCB), and this circuit board is provided with dash receiver, reaches and the corresponding expelling plate of this dash receiver.

Said power valve is located on this expelling plate, receives the silicon optical module and is located on this dash receiver.

The rotary encoder of the utility model; Easy to assembly, stable performance, degree of accuracy are higher, and the circuit board that it adopts metallic positioning and plastic-steel insulating material to make not only has stronger anti-shake performance; Can effectively prevent the damage of parts; Increase the service life, can prevent leaky simultaneously, use safer.

Description of drawings

Fig. 1 is the cross-sectional view of rotary encoder one specific embodiment of the utility model;

Fig. 2 is the structural representation of keeper 24 1 specific embodiments in the utility model;

Fig. 3 falls the Facad structure synoptic diagram of 26 1 specific embodiment in the utility model;

Fig. 4 falls the side structure synoptic diagram of 26 1 specific embodiment among Fig. 3;

Fig. 5 is the structural representation of dash receiver 42 1 specific embodiments in the utility model;

Fig. 6 is the structural representation of expelling plate 44 1 specific embodiments in the utility model.

Embodiment

As shown in Figure 1, the utility model provides a kind of rotary encoder, and it comprises: can 10, main shaft 20, be sheathed on the metal grating dish in main shaft 20 outsides and be located at the circuit board in the can 10.The said main shaft of the utility model 20 outsides are arranged with frame, keeper 24, reach item 26; This keeper 24 and the item 26 that falls are resisted against metal grating dish both sides respectively; This metal grating dish comprises moving grating dish 32, reaches quiet grating dish 34, and circuit board is provided with power valve and receives silicon optical module (not shown).

Wherein, also be provided with cable sheath 12 on the said can 10, be provided with cable 14 in this cable sheath 12, these cable 14 1 ends and circuit board electrically connect.

Be arranged with two bearings 21 between 20 outsides of main shaft described in the utility model and the frame, wherein the bearing outside away from the metal grating dish is provided with a back-up ring 28, and this back-up ring 28 is located on the outside of main shaft 20.

The frame of the utility model comprises the mainframe 22 that is sheathed on main shaft 20 outsides successively, and random frame 23, and keeper 24 is located between random frame 23 and the main shaft 20, and this mainframe 22 fixedly mounts through a Philips screw 16 and can 10.As a kind of specific embodiment of the utility model, said keeper 24 can be metallic positioning (shown in Figure 2), and it has stronger anti-shake performance, can effectively prevent the damage of parts, increases the service life.

In the utility model, said item 26 is located on the main shaft 20.Like Fig. 3, shown in 4; A kind of specific embodiment as the utility model; Should fall 26 can comprise an annulus 262 and be uniformly distributed in annulus 262 1 sides and to several outstanding barbs 264 of annulus 262 radial directions, this annulus 262 leans with moving grating dish 32.

Further; The circuit board of the utility model is a printed circuit board (PCB); This circuit board is provided with dash receiver 42 (shown in Figure 5), reaches and these dash receiver 42 corresponding expelling plates 44 (shown in Figure 6), and said power valve is located on this expelling plate 44, receives the silicon optical module and is located on this dash receiver 42.As a kind of specific embodiment of the utility model, said circuit board adopts the plastic-steel insulating material to make and forms, and can prevent leaky, uses safer.

In sum, the rotary encoder of the utility model, easy to assembly, stable performance, degree of accuracy are higher; It adopts the Positioning Gear and the circuit board of plastic-steel material; Not only have stronger anti-shake performance, can effectively prevent the damage of parts, increase the service life; Simultaneously can prevent leaky, use safer.

The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to the technical scheme and the technical conceive of the utility model, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.

Claims

1. rotary encoder; Comprise can, main shaft, be sheathed on the metal grating dish in the main shaft outside and be located at the circuit board in the can; It is characterized in that the said main shaft outside is arranged with frame, keeper, and falls, this keeper with fall item and be resisted against metal grating dish both sides respectively; This metal grating dish comprises moving grating dish, reaches quiet grating dish, and circuit board is provided with power valve and receives the silicon optical module.

2. rotary encoder as claimed in claim 1 is characterized in that, also is provided with the cable sheath on the said can, is provided with cable in this cable sheath, and this cable one end and circuit board electrically connect.

3. rotary encoder as claimed in claim 1 is characterized in that, is arranged with two bearings between the said main shaft outside and the frame, is provided with back-up ring outside the bearing away from the metal grating dish, and this back-up ring is located on the main shaft outside.

4. rotary encoder as claimed in claim 1 is characterized in that, frame comprises the mainframe that is sheathed on the main shaft outside successively, and random frame, and keeper is located between random frame and the main shaft.

5. rotary encoder as claimed in claim 1 is characterized in that, said keeper is a metallic positioning, and circuit board adopts the plastic-steel insulating material to make and forms.

6. rotary encoder as claimed in claim 1 is characterized in that, said fall is located on the main shaft, should fall to comprise an annulus and is uniformly distributed in annulus one side and to several outstanding barbs of annular radii direction, this annulus and moving grating dish lean.

7. rotary encoder as claimed in claim 1 is characterized in that, said circuit board is a printed circuit board (PCB), and this circuit board is provided with dash receiver, reaches and the corresponding expelling plate of this dash receiver.

8. rotary encoder as claimed in claim 7 is characterized in that, said power valve is located on this expelling plate, receives the silicon optical module and is located on this dash receiver.