CN2372659Y

CN2372659Y - Displacement transducer

Info

Publication number: CN2372659Y
Application number: CN 99223528
Authority: CN
Inventors: 王福双
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-16
Filing date: 1999-04-16
Publication date: 2000-04-05
Anticipated expiration: 2009-04-16

Abstract

The utility model provides a displacement transducer for magnet, light and electricity, composed of a displacement sensing assembly and a rotary encoder. The displacement sensing assembly comprises an enclosed type fixed tube, a pair of guide wheels which are arranged at the upper and the lower ends of the fixed tube, a slide wire which is wound between the upper and the lower guide wheels, an inner magnetic element which is fixed on the slide wire of one side, and an outer magnetic element which is sheathed on the outer wall of the fixed tube and can slide vertically. The rotary encoder is fixed on a guide wheel shaft, a light or an electric encoder can be used, and the rotary encoder can be an increment type or an absolute type. The shape of a shell of the outer magnetic element can be adapted to a detect object, and is contacted or connected with the detected object. The displacement sensor has the advantages of high precision and reliable operation.

Description

Displacement transducer

The utility model belongs to a kind of displacement detector, particularly a kind of displacement transducer that utilizes magnetic, electrical, optical.

Displacement transducer has many kinds, mechanical type is arranged, electromagnetic type is arranged, and photoelectric type is also arranged.The range of application that these displacement transducers have is narrower, the complex structure that has, and the measuring accuracy that has is not high, and result of use is bad.

The purpose of this utility model provides a kind of displacement transducer of being made up of magnetic displacement sensory package and light, electric rotary encoder, is used for the displacement of the various objects of high Precision Detection.

According to displacement transducer of the present utility model, formed by displacement sensing assembly and rotary encoder, described displacement sensing assembly comprises a closed stationary pipes, a pair of upper block and the lower tumbler that is arranged on the stationary pipes upper and lower end, be centered around the slip between upper and lower guide wheel, be fixed on the interior magnetic cell on the sideslip line, be enclosed within on the stationary pipes outer wall can upper and lower slip outer magnetic cell form, described rotary encoder is fixed on the upper block axis.

According to displacement transducer of the present utility model, the upper and lower guide wheel shaft of its sensory package is contained on bearing and the bearing seat, makes guide wheel be easy to rotation.

According to displacement transducer of the present utility model, employed rotary encoder both can be used photoelectric coder, also can use optical encoder.Electricity or optical encoder both can be absolute types, also can be incrementals.

When adopting the light rotary encoder, the part of grating is stretched out outside the stationary pipes, and its both sides are provided with the emitter and the receiving pole of the optical cable transmission system that transmits signal respectively.

When adopting photoelectric coder, upper block is located at the outside, stationary pipes upper end, and the photoelectric coder axle directly is contained on the guide wheel hole, and the scrambler output terminal connects the signal output cable.

According to displacement transducer of the present utility model, outer magnetic cell is arranged in the shell, and the hull shape shape is designed to adapt with detected object in addition, so that under the drive of detected object, makes outer magnetic cell moving along the stationary pipes wall shift.Because outer magnetic cell and interior magnetic cell attract each other, interior magnetic cell moves in company with outer magnetic cell, driving guide wheel by slip rotates, guide wheel driven rotary scrambler again rotates, the displacement of the lines of magnetic cell is become angular displacement, and this angular displacement outputs to signal processing apparatus or control system by cable or optical cable with the corresponding digital coded signal.

When being necessary, protective cover and bearing are set can for displacement transducer of the present utility model, bearing can be fixed on outside stationary pipes upper port or the lower end, and protective cover is fixed on the bearing.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is for adopting the displacement transducer synoptic diagram of grating.

Fig. 2 is for adopting the displacement transducer synoptic diagram of photoelectric coder.

As shown in Figure 1, 2, displacement transducer of the present utility model, formed by displacement sensing assembly and rotary encoder, described displacement sensing assembly comprises a closed stationary pipes 5, a pair of upper block 9 and the lower tumbler 2 that is arranged on the stationary pipes upper and lower end is centered around the slip 6 between upper and lower guide wheel, is fixed on the interior magnetic cell 4 on the sideslip line 6, be enclosed within on the stationary pipes outer wall can upper and lower slip outer magnetic cell 3 form, described rotary encoder 8,8 ' is fixed on the upper block axis.

As shown in Figure 1, the upper block 9 of displacement sensor component, the axle of lower tumbler 2 are contained on bearing and the bearing seat 1,1 '.

As shown in Figure 1, when adopting optical encoder 8, the part of its grating is stretched out the stationary pipes upper end, and its both sides are provided with the emitter 10 and the receiving pole 11 of the optical cable transmission system 7 of transmission signals respectively.

As shown in Figure 2, when adopting photoelectric coder 8 ', upper block 9 is located at the outside, stationary pipes 5 upper ends, the axle of photoelectric coder 8 ' directly is contained on upper block 9 holes, and photoelectric coder 8 ' output terminal connects signal-transmitting cable 12.

Displacement transducer of the present utility model both can detect the perpendicular displacement of measurand, also can place the stationary pipes of sensor module by the angle of any needs, as the detection level displacement, and 45 displacement etc.

As mentioned above, the shell shape of outer magnetic cell 3 can design arbitrarily, makes it to be suitable for to be connected with detected object or to contact, and makes the mobile of detected object can drive moving of outer magnetic cell and shell thereof.

Claims

1, a kind of displacement transducer, it is characterized in that being formed by displacement sensing assembly and rotary encoder, described displacement sensing assembly comprises a closed stationary pipes (5), a pair of upper block (9) and the lower tumbler (2) that is arranged on the stationary pipes upper and lower end, be centered around the slip (6) between upper and lower guide wheel, be fixed on the interior magnetic cell (4) on the sideslip line (6), be enclosed within on the stationary pipes outer wall can upper and lower slip outer magnetic cell (3), described rotary encoder (8), (8 ') are fixed on the upper block axis.

2, according to the displacement transducer of claim 1, the axle that it is characterized in that upper block (9), the lower tumbler (2) of described displacement sensing assembly is contained in bearing and bearing seat (1), on (1 ').

3,, it is characterized in that described rotary encoder is incremental or absolute type photoelectric coder according to the displacement transducer of claim 1.

4,, it is characterized in that described rotary encoder is incremental or absolute type optical encoder according to the displacement transducer of claim 1.

5, according to the displacement transducer of claim 1 or 4, it is characterized in that when adopting optical encoder (8) part of grating is stretched out the stationary pipes upper end, its both sides are provided with the emitter (10) and the receiving pole (11) of the optical cable transmission system (7) that transmits signal respectively.

6, according to the displacement transducer of claim 1 or 3, it is characterized in that adopting photoelectric coder when (8 '), upper block (9) is located at the outside, stationary pipes (5) upper end, the axle of photoelectric coder (8 ') directly is contained on upper block (9) hole, and photoelectric coder (8 ') output terminal connects signal-transmitting cable (12).