CN212254127U - Contactless binary channels becomes transmitter structure soon - Google Patents

Abstract

The utility model relates to a contactless double-channel rotary transformer transmitter structure, which comprises a stator assembly and a rotor assembly; the stator assembly comprises a shell, a rotary variable stator and a ring variable stator; the casing is cylindrical, a central through hole is formed in the axial direction, a coaxial annular groove is formed in the outer ring of the central through hole, a rotating stator and an annular stator are arranged on the outer side wall of the annular groove at intervals in an annular mode, and a rotor assembly is sleeved on the inner side wall of the annular groove; the rotor assembly comprises a rotating shaft, a rotary transformer rotor and a ring transformer rotor, the rotary transformer rotor and the ring transformer rotor are sleeved outside the rotating shaft at intervals, and the rotating shaft is sleeved on the inner side wall of the annular groove through a bearing; the positions of the rotary transformer stator and the rotary transformer rotor correspond to each other, and the positions of the annular transformer stator and the annular transformer rotor correspond to each other. The utility model discloses the beneficial effect who reaches is: the measurement is accurate, simple to operate, life is high.

Description

Contactless binary channels becomes transmitter structure soon

Technical Field

The utility model relates to a change ware technical field soon, especially a contactless binary channels changes transmitter structure soon.

Background

The common rotary transformer has a complex structure, is easy to generate errors during installation, and needs to be repeatedly debugged during production; and in subsequent work, because of the single channel, the error correction adjustment cannot be carried out, and the measurement is not particularly accurate. In addition, since the general rotary transformer is in contact with the steel plate, the rotary transformer is easy to wear after long-term use, and the service life is short.

Based on this, this scheme designs a contactless binary channels and becomes transmitter structure soon, and is fixed firm, simple to operate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a contactless binary channels that measure accuracy, simple to operate, life are high and become transmitter structure soon.

The purpose of the utility model is realized through the following technical scheme: a contactless dual channel rotary transformer transmitter structure comprises a stator assembly and a rotor assembly;

the stator assembly comprises a shell, a rotary variable stator and a ring variable stator;

the casing is cylindrical, a central through hole is formed in the axial direction, a coaxial annular groove is formed in the outer ring of the central through hole, a rotating stator and an annular stator are arranged on the outer side wall of the annular groove at intervals in an annular mode, and a rotor assembly is sleeved on the inner side wall of the annular groove;

the rotor assembly comprises a rotating shaft, a rotary transformer rotor and a ring transformer rotor, the rotary transformer rotor and the ring transformer rotor are sleeved outside the rotating shaft at intervals, and the rotating shaft is sleeved on the inner side wall of the annular groove through a bearing;

the positions of the rotary transformer stator and the rotary transformer rotor correspond to each other, and the positions of the annular transformer stator and the annular transformer rotor correspond to each other.

Furthermore, the outer side wall and the inner side wall of the annular groove are both in an annular step shape;

the rotary transformer stator and the ring transformer stator are arranged on the step platform of the outer side wall and are respectively compressed and fixed through a pressing ring A and a pressing ring B;

the rotor assembly is provided with a bearing pressure plate at one side close to the bottom of the annular groove and a stator pressure plate at one side far away from the annular groove.

Furthermore, the notch on the inner wall of the annular groove, namely the position far away from the groove bottom, is provided with an external thread, and the stator pressing plate is screwed and fixed with the external thread through the internal thread.

Furthermore, the rotating shaft and the bearing pressing plate are respectively provided with corresponding threaded holes, and the rotating shaft and the bearing pressing plate are fixedly connected through screws.

Preferably, the rotating shaft is in a stepped shaft shape, the rotary transformer rotor and the ring transformer rotor are fixedly sleeved on the rotating shaft through glue, and the rotary transformer rotor and the ring transformer rotor are further pressed and fixed through a pressing ring C and a pressing ring D respectively.

Furthermore, the outer ring surface of the casing is also provided with a fixed ring lug.

Preferably, the casing is provided with a wire slot hole for leading out a lead of the rotary transformer stator and a lead of the rotary transformer rotor.

The utility model has the advantages of it is following:

(1) according to the scheme, through designing the non-contact double-channel rotary transformer, the coarse angle position measurement is completed by the single-pole rotary transformer during the non-contact double-channel rotary transformer operation, the fine angle position measurement is completed by the multi-pole rotary transformer, and the high-precision measurement of a 360-degree mechanical angle is completed through the combination of a coarse machine and a fine machine, so that the measurement precision is improved from angle classification to angle second classification, and the measurement precision is greatly improved;

(2) the arrangement of the annular groove in the shell, the installation of the rotating shaft and the installation structures of the rotary transformer stator, the annular transformer stator, the rotary transformer rotor and the rotary transformer rotor are convenient to install and firm to install, so that the installation precision is effectively improved, and the purpose of improving the measurement precision is achieved;

(3) due to the non-contact, the abrasion between the stator and the rotor can not be generated, and the service life of the whole rotary transformer transmitter is prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a stator assembly;

FIG. 3 is a schematic view of a rotor winding configuration;

FIG. 4 is a schematic structural diagram of the housing;

FIG. 5 is a schematic structural diagram of a rotary transformer stator;

FIG. 6 is a schematic structural diagram of a ring-type stator;

in the figure: 1-machine shell, 101-central through hole, 102-annular groove, 103-fixed ring lug, 104-wire slotted hole, 2-rotary variable stator, 201-pressing ring A, 202-electronic wire, 203-rotary variable electronic core, 204-single pole/multi-pole rotary variable stator coil, 3-ring variable stator, 301-pressing ring A, 302-ring variable stator core, 303-ring variable stator coil, 4-rotating shaft, 5-rotary variable rotor, 501-pressing ring C, 6-ring variable rotor, 601-pressing ring D, 7-bearing, 8-bearing pressing plate, 9-stator pressing plate and 10-threaded hole.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 6, a contactless dual-channel rotating transmitter structure includes a stator assembly and a rotor assembly; wherein the rotating assembly is housed in the stator assembly and secured with the stator pressure plate 9.

As shown in fig. 2, the stator assembly includes a casing 1, a rotating stator 2, a ring stator 3; the casing 1 is cylindrical, and is opened along the axial has central through-hole 101, and the outer loop department at central through-hole 101 opens the ring channel 102 that has the same axle center, and ring channel 102 lateral wall department annular is provided with rotary transformer stator 2, ring transformer stator 3 at interval, and the inside wall department cover of ring channel 102 is equipped with the rotor subassembly.

During installation, the loctite 326 glue is uniformly coated on the matching surface of the shell (namely the outer side wall of the annular groove 102), the loctite 7387 accelerant is uniformly coated on the outer circular surface of the rotary transformer stator 2, the lead of the rotary transformer stator 2 is aligned with the wire slot hole and then is slightly pushed into the shell 1, and the pressing ring A201 is pressed in. The ring stator 3 is similarly installed and pressed in by the pressing ring B301.

As shown in fig. 3, the rotor assembly includes a rotating shaft 4, a rotary transformer rotor 5 and a ring transformer rotor 6, the rotary transformer rotor 5 and the ring transformer rotor 6 are sleeved outside the rotating shaft 4 at intervals, and the rotating shaft 4 is sleeved on the inner side wall of the annular groove 102 through a bearing 7; the positions of the rotary transformer stator 2 and the rotary transformer rotor 5 correspond to each other, and the position of the ring transformer stator 3 and the position of the ring transformer rotor 6 correspond to each other.

When the rotating shaft is installed, the matching surface (namely the cylindrical surface) of the rotating shaft 4 is uniformly coated with the loctite 326 glue, the inner circular surface of the rotating rotor 5 is uniformly coated with the loctite 7387 accelerant, the rotating rotor 5 is slightly pushed into the rotating shaft 4 through clearance sliding fit, and the pressing ring C501 is pressed in. The ring transformer rotor 6 is similarly installed and pressed in by a pressing ring D601.

When the rotor assembly is mounted in the stator assembly, the bearings 7 of the low temperature grease are fitted into the shaft 4 and the bearing plates 9 screws are fitted. Meanwhile, the end part of the corresponding winding coil cannot be in contact with the bearing pressing plate 8 and the rotating shaft 4, the rotating shaft 4 and the bearing pressing plate 8 are provided with corresponding threaded holes 10, and the two are fixedly connected through screws. After the bearing pressing plate 8 is provided with the screw, the end face of the screw is higher than the bearing pressing plate 8 by no more than 0.1 mm.

In this embodiment, the annular groove 102 has an outer sidewall and an inner sidewall both in the shape of an annular stepped platform; the rotary transformer stator 2 and the ring transformer stator 3 are arranged on a step platform on the outer side wall and are respectively pressed and fixed by a pressing ring A201 and a pressing ring B301; and a bearing pressing plate 8 is arranged on one side close to the bottom of the annular groove 102 of the rotor assembly, and a stator pressing plate 9 is arranged on the side far away from the annular groove.

In this embodiment, an external thread is provided on the inner wall of the annular groove 102 at the notch, i.e., at a position away from the groove, and the stator pressing plate 9 is screwed and fixed with the external thread through the internal thread.

In this embodiment, the outer circumferential surface of the casing 1 further has a fixing ring 103.

In the present embodiment, as shown in fig. 5, the rotating stator 2 includes an electronic wire 202, a rotating stator core 203, and a single-pole/multi-pole rotating stator coil 204, and the single-pole/multi-pole rotating stator coil 204 is wound around the rotating stator core 203 and led out through the electronic wire 202.

In the present embodiment, as shown in fig. 6, the rotating stator includes a rotating stator core 302 and a rotating stator coil 303, and the rotating stator coil 303 is wound around the rotating stator core 302. In fig. 6, the winding direction of the resolver stator coil 303 is clockwise when viewed from the right.

The non-contact rotary transformer replaces the structure of an electric brush and a slip ring in the contact rotary transformer by a set of annular transformers (consisting of a ring transformer stator 3 and a ring transformer rotor 6). When an alternating-current excitation voltage is applied to the ring-type variable stator 3, an alternating-current voltage is induced on the ring-type variable rotor 6, and because a closed loop is formed between the ring-type variable rotor 3 and the rotary variable rotor 6, the rotary variable rotor 6 is excited, and the rotary variable stator 2 generates an induced voltage output. The rotor is connected with the measured shaft, and when the relative position between the rotor and the stator changes, the voltage output by the stator in an induction way changes, so that the change of the rotation angle of the measured rotating shaft is reflected.

Claims (7)

1. A contactless dual-channel rotary transformer transmitter structure is characterized in that: comprises a stator component and a rotor component;

the stator assembly comprises a machine shell (1), a rotary variable stator (2) and a ring variable stator (3);

the casing (1) is cylindrical, a central through hole (101) is formed in the axial direction, a coaxial annular groove (102) is formed in the outer ring of the central through hole (101), the external side wall of the annular groove (102) is provided with a rotating variable stator (2) and a ring variable stator (3) in an annular mode at intervals, and a rotor assembly is sleeved on the internal side wall of the annular groove (102);

the rotor assembly comprises a rotating shaft (4), a rotating transformer rotor (5) and a ring transformer rotor (6), the rotating transformer rotor (5) and the ring transformer rotor (6) are sleeved outside the rotating shaft (4) at intervals, and the rotating shaft (4) is sleeved on the inner side wall of the annular groove (102) through a bearing (7);

the positions of the rotary transformer stator (2) and the rotary transformer rotor (5) correspond to each other, and the positions of the ring transformer stator (3) and the ring transformer rotor (6) correspond to each other.

2. A contactless dual channel rotary transformer transmitter architecture according to claim 1, characterized in that: the outer side wall and the inner side wall of the annular groove (102) are both in an annular step shape;

the rotary transformer stator (2) and the annular transformer stator (3) are arranged on a step platform on the outer side wall and are respectively compressed and fixed through a pressing ring A (201) and a pressing ring B (301);

and a bearing pressure plate (8) is arranged on one side close to the bottom of the annular groove (102) of the rotor assembly, and a stator pressure plate (9) is arranged on the other side far away from the annular groove.

3. A contactless dual channel rotary transformer transmitter architecture according to claim 2, characterized in that: and external threads are arranged on the inner wall of the annular groove (102), namely, the position far away from the groove bottom, of the groove bottom, and the stator pressing plate (9) is screwed and fixed with the external threads through the internal threads.

4. A contactless dual channel rotary transformer transmitter architecture according to claim 3, characterized in that: and the rotating shaft (4) and the bearing pressing plate (8) are provided with corresponding threaded holes (10) which are fixedly connected through screws.

5. The contactless dual channel rotary transformer transmitter structure of claim 4, wherein: the rotating shaft (4) is in a stepped shaft shape, the rotary transformer rotor (5) and the ring transformer rotor (6) are fixedly sleeved on the rotating shaft (4) through glue, and the rotary transformer rotor and the ring transformer rotor are further compressed and fixed through a pressing ring C (501) and a pressing ring D (601) respectively.

6. The contactless dual channel rotary transformer transmitter structure of claim 5, wherein: the outer ring surface of the machine shell (1) is also provided with a fixed ring lug (103).

7. The contactless dual channel rotary transformer transmitter structure of claim 6, wherein: and the machine shell (1) is also provided with a wire slot hole (104) for leading out a lead of the rotary transformer stator (2) and a lead of the rotary transformer rotor (5).

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