CN214256028U

CN214256028U - Dual-redundancy steering engine device

Info

Publication number: CN214256028U
Application number: CN202120259197.6U
Authority: CN
Inventors: 赵子江; 徐兵
Original assignee: Sichuan Tong'an Space Technology Co ltd
Current assignee: Sichuan Tong'an Space Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-21
Anticipated expiration: 2031-01-29

Abstract

The utility model provides a dual-redundancy steering engine device, which comprises a housin, first driving motor, second driving motor and telescopic shaft subassembly, install primary shaft and differential mechanism subassembly in the casing, the first gear of fixed mounting on first driving motor's the motor shaft, the outer end fixed mounting of differential mechanism subassembly's input shaft has the second gear with first gear engaged with, install the fourth gear with the epaxial third gear engaged with of output of differential mechanism subassembly on the primary shaft, fixed mounting fifth gear on second driving motor's the motor shaft, fifth gear meshes with differential mechanism subassembly's ring gear mutually, the part that the primary shaft stretches out the casing is provided with the external screw thread, telescopic shaft subassembly includes guide cylinder and telescopic link, the primary shaft passes through threaded mounting in the screw hole of telescopic link. When any one of the first driving motor and the second driving motor breaks down, the other driving motor is replaced to work, normal use of the steering engine can be guaranteed, and reliability and service life of equipment are improved.

Description

Dual-redundancy steering engine device

Technical Field

The utility model relates to a dual-redundancy steering engine device belongs to steering wheel structure technical field.

Background

The steering engine is a device with an output shaft, and when a control signal is sent to a servo of the steering engine, the output shaft can be rotated to a specific position. The servo mechanism keeps the angular position of the shaft unchanged as long as the control signal is continuously unchanged. If the control signal changes, the position of the output shaft changes correspondingly. In daily life, steering engines are often used in the fields of remote control of airplanes, remote control of automobiles, robots and the like. However, most of the existing steering engines are devices with complex structures and are also used for controlling the rotation angle of an output shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dual-redundancy steering engine device, which reduces the complexity of the steering engine structure and improves the stability in use.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a dual-redundancy steering engine device comprises a shell, a first driving motor, a second driving motor and a telescopic shaft assembly, wherein a first shaft extending along a first direction and a differential assembly extending along a second direction of an output shaft are rotatably arranged in the shell, the first direction is vertical to the second direction, the first driving motor and the second driving motor are fixedly arranged on the shell, motor shafts of the first driving motor and the second driving motor extend into the shell, a first gear is fixedly arranged on a motor shaft of the first driving motor positioned in the shell, a second gear meshed with the first gear is fixedly arranged at the outer end of an input shaft of the differential assembly,

a third gear is fixedly arranged at the outer end of an output shaft of the differential assembly, a fourth gear meshed with the third gear is arranged on the first shaft, a fifth gear is fixedly arranged on a motor shaft of a second driving motor positioned in the shell and meshed with a ring gear of the differential assembly,

the casing is stretched out to the one end of primary shaft, and the part that the primary shaft stretches out the casing is provided with the external screw thread, telescopic shaft subassembly including fixed the guide cylinder that sets up on the casing, slide in the guide cylinder and be provided with the telescopic link, the guide cylinder allows the telescopic link to follow axial motion and restrict the circumferential direction of telescopic link, be provided with in the telescopic link with external screw thread matched with internal thread hole, the part that the primary shaft stretches out the casing passes through the screw thread and installs in the threaded hole of telescopic link.

The differential mechanism assembly comprises an input shaft, an output shaft, a ring gear, a support, a first planetary gear and a second planetary gear, wherein the ring gear is rotatably arranged on the input shaft, the support is fixedly connected with the ring gear, the inner end of the input shaft extends into the support and is fixedly provided with a sixth gear, the inner end of the output shaft extends into the support and is fixedly provided with a seventh gear, the input shaft and the output shaft are coaxially arranged, the first planetary gear and the second planetary gear are symmetrically arranged in the support, and the first planetary gear and the second planetary gear are simultaneously meshed with the sixth gear and the seventh gear.

Optionally, a guide rail extending along the axial direction of the guide cylinder is arranged in the guide cylinder, and the telescopic rod is slidably mounted in the guide rail.

Optionally, the cross section of the inner hole of the guide cylinder is non-circular, and the cross section of the outer surface of the telescopic rod is consistent with the cross section of the inner hole of the guide cylinder. For example, the inner hole of the guide cylinder is a square hole, and the telescopic rod is a square rod.

Optionally, the outer end of the telescopic rod is provided with a first connecting lug.

Further preferably, a second connecting lug is arranged on the outer surface of the shell opposite to the side where the telescopic shaft assembly is arranged.

During the use, with casing fixed mounting or with first subassembly connection second connection journal stirrup, then connect first connection journal stirrup with the second subassembly, through making any one work in first driving motor and the second driving motor, can drive the primary shaft through differential mechanism subassembly and rotate, the internal thread hole drive telescopic link of primary shaft through the telescopic link is along the guide cylinder axial to flexible. Thereby enabling the second component to move away from and closer to the housing or the first component. When any one of the first driving motor and the second driving motor breaks down, the other driving motor is replaced to work, normal use of the steering engine can be guaranteed, and reliability and service life of equipment are improved.

The utility model has the advantages that:

the utility model discloses can the flexible length of accurate control telescopic link, the structure is succinct, and the operation is stable, is convenient for be suitable for different operating mode demands, and the flexibility is good. The structure that the shell and the telescopic rod are both provided with the connecting lugs is beneficial to the installation of the steering engine. When any one of the first driving motor and the second driving motor breaks down, the other driving motor is replaced to work, normal use of the steering engine can be guaranteed, and reliability and service life of equipment are improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of the dual-redundancy steering engine device of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for the purpose of giving a thorough understanding of the present disclosure.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the present invention, which is for purposes of illustration only and is not intended to be in the sole embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the present invention provides a technical solution: a dual-redundancy steering engine device comprises a shell 10, a first driving motor 21, a second driving motor 22 and a telescopic shaft assembly, wherein a differential assembly extending along a second direction is installed in the shell 10 in a rotating mode, a first shaft 31 and an output shaft 32 extending along the first direction extend along the second direction, the first direction is perpendicular to the second direction, the first driving motor 21 and the second driving motor 22 are fixedly installed on the shell 10, motor shafts of the first driving motor 21 and the second driving motor 22 extend into the shell 10, a first gear 33 is fixedly installed on a motor shaft of the first driving motor 21 inside the shell 10, a second gear 34 meshed with the first gear 33 is fixedly installed at the outer end of an input shaft 38 of the differential assembly,

a third gear 35 is fixedly arranged at the outer end of an output shaft 32 of the differential assembly, a fourth gear 36 meshed with the third gear 35 is arranged on the first shaft 31, a fifth gear 37 is fixedly arranged on a motor shaft of the second driving motor 22 positioned in the shell 10, the fifth gear 37 is meshed with a ring gear 39 of the differential assembly,

casing 10 is stretched out to the one end of primary shaft 31, and the part that primary shaft 31 stretches out casing 10 is provided with the external screw thread, telescopic shaft subassembly including fixed guide cylinder 41 that sets up on casing 10, slide in guide cylinder 41 and be provided with telescopic link 42, guide cylinder 41 allows telescopic link 42 along axial motion and restricts telescopic link 42's circumferential direction, be provided with in the telescopic link 42 with external screw thread matched with internal thread hole, the part that primary shaft 31 stretches out casing 10 passes through the threaded mounting in telescopic link 42's threaded hole.

The differential assembly comprises an input shaft 38, an output shaft 32, a ring gear 39, a bracket 301, a first planetary gear 302 and a second planetary gear 303, wherein the ring gear 39 is rotatably arranged on the input shaft 38, the bracket 301 is fixedly connected with the ring gear 39, the inner end of the input shaft 38 extends into the bracket 301 and is fixedly provided with a sixth gear 304, the inner end of the output shaft 32 extends into the bracket 301 and is fixedly provided with a seventh gear 305, the input shaft 38 and the output shaft 32 are coaxially arranged, the first planetary gear 302 and the second planetary gear 303 are symmetrically arranged in the bracket 301, and the first planetary gear 302 and the second planetary gear 303 are simultaneously meshed with the sixth gear 304 and the seventh gear 305.

Optionally, a guide rail extending along the axial direction of the guide cylinder 41 is arranged in the guide cylinder 41, and the telescopic rod 42 is slidably mounted in the guide rail.

Optionally, the cross section of the inner hole of the guide cylinder 41 is non-circular, and the cross section of the outer surface of the telescopic rod 42 is the same as the cross section of the inner hole of the guide cylinder 41. For example, the inner hole of the guide cylinder 41 is a square hole, and the expansion link 42 is a square rod.

Optionally, the outer end of the telescopic rod 42 is provided with a first connecting lug 51.

Further preferably, a second connecting lug 52 is arranged on the outer surface of the housing 10 opposite to the side where the telescopic shaft assembly is arranged.

When the telescopic shaft is used, the shell 10 is fixedly installed or the first component is connected with the second connecting support lug 52, then the second component is connected with the first connecting support lug 51, the first shaft 31 can be driven to rotate through the differential assembly by enabling any one of the first driving motor 21 and the second driving motor 22 to work, and the external thread of the first shaft 31 drives the telescopic rod 42 to axially extend and retract along the guide cylinder 41 through the internal thread hole of the telescopic rod 42. Thereby enabling the second component to move away from and closer to the housing 10 or the first component. When any one of the first driving motor 21 and the second driving motor 22 breaks down, the other driving motor is replaced to work, so that the normal use of the steering engine can be ensured, and the reliability and the service life of the equipment are improved.

The utility model discloses can the flexible length of accurate control telescopic link 42, the structure is succinct, and the operation is stable, is convenient for be suitable for different operating mode demands, and the flexibility is good. The shell 10 and the telescopic rod 42 are both provided with a structure for connecting the support lugs, so that the steering engine can be mounted conveniently. When any one of the first driving motor 21 and the second driving motor 22 breaks down, the other driving motor is replaced to work, so that the normal use of the steering engine can be ensured, and the reliability and the service life of the equipment are improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. The utility model provides a dual-redundancy steering engine device which characterized in that: the differential mechanism comprises a shell, a first driving motor, a second driving motor and a telescopic shaft assembly, wherein a first shaft extending along a first direction and a differential mechanism assembly extending along a second direction of an output shaft are rotatably arranged in the shell, the first direction is vertical to the second direction, the first driving motor and the second driving motor are fixedly arranged on the shell, motor shafts of the first driving motor and the second driving motor extend into the shell, a first gear is fixedly arranged on a motor shaft of the first driving motor positioned in the shell, a second gear meshed with the first gear is fixedly arranged at the outer end of an input shaft of the differential mechanism assembly,

2. A dual-redundancy steering engine unit according to claim 1, wherein: the differential mechanism assembly comprises an input shaft, an output shaft, a ring gear, a support, a first planetary gear and a second planetary gear, wherein the ring gear is rotatably arranged on the input shaft, the support is fixedly connected with the ring gear, the inner end of the input shaft extends into the support and is fixedly provided with a sixth gear, the inner end of the output shaft extends into the support and is fixedly provided with a seventh gear, the input shaft and the output shaft are coaxially arranged, the first planetary gear and the second planetary gear are symmetrically arranged in the support, and the first planetary gear and the second planetary gear are simultaneously meshed with the sixth gear and the seventh gear.

3. A dual-redundancy steering engine unit according to claim 1, wherein: the guide cylinder is internally provided with a guide rail which extends along the axial direction of the guide cylinder, and the telescopic rod is slidably arranged in the guide rail.

4. A dual-redundancy steering engine unit according to claim 1, wherein: the cross section of the inner hole of the guide cylinder is non-circular, and the cross section of the outer surface of the telescopic rod is consistent with that of the inner hole of the guide cylinder.

5. A dual-redundancy steering engine device according to claim 4, wherein: the inner hole of the guide cylinder is a square hole, and the telescopic rod is a square rod.

6. A dual-redundancy steering engine unit according to claim 1, wherein: the outer end part of the telescopic rod is provided with a first connecting lug.

7. A dual-redundancy steering engine unit according to claim 1, wherein: and a second connecting lug is arranged on the outer surface of the shell opposite to the side where the telescopic shaft assembly is arranged.