CN207333490U - A kind of limiter of moment being used in rotary actuator - Google Patents
A kind of limiter of moment being used in rotary actuator Download PDFInfo
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- CN207333490U CN207333490U CN201721351077.9U CN201721351077U CN207333490U CN 207333490 U CN207333490 U CN 207333490U CN 201721351077 U CN201721351077 U CN 201721351077U CN 207333490 U CN207333490 U CN 207333490U
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- 210000005069 ears Anatomy 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 210000003734 kidney Anatomy 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model belongs to rotary actuator designing technique, is related to a kind of limiter of moment being used in rotary actuator.It is characterized in that：It further includes planetary reduction gear (7), bracket component (13), microswitch component (14) and electric connector socket (17).The utility model proposes a kind of limiter of moment being used in rotary actuator, improve security, prevent the high current that overload stall produces to cause to damage to motor, extend the service life of motor in rotary actuator, meet the requirement of aviation rotary actuator.
Description
Technical field
The utility model belongs to rotary actuator designing technique, is related to a kind of torque limitation being used in rotary actuator
Device.
Background technology
At present, overcurrent protection structure is usually slip clutch structure in rotary actuator, realizes that rotary actuator is born outside
Carried out when carrying excessive without output protection.The shortcomings that this slip clutch structure is：Its security is poor, the big electricity that overload stall produces
Stream can cause to damage to rotary actuator motor, shorten the service life of motor in rotary actuator, it is impossible to meet that aviation rotates
The requirement of actuator.
Utility model content
The purpose of this utility model is：A kind of limiter of moment being used in rotary actuator is proposed, to improve safety
Property, prevent that the high current that overload stall produces from causing to damage to rotary actuator motor, motor makes in extension rotary actuator
With the service life, meet the requirement of aviation rotary actuator.
The technical solution of the utility model is：A kind of limiter of moment being used in rotary actuator, including limiter shell
Body and driving motor 1；It is characterized in that：It further includes planetary reduction gear 7, bracket component 13, microswitch component 14 and is electrically connected
Connect device socket 17；
The limiter housing includes lower housing shell 2, left end cap 9 and upper cover 16；There is receiving planetary reduction gear in lower housing shell 2
7 lower chamber, the right output port of lower chamber carry lower chamber flange, have receiving bracket component 13 and fine motion to open above lower chamber
The upper cavity of component 14, the open upper end of upper cavity are closed, upper cover 16 covers the upper port of upper cavity, and left end cap 9 covers
The left port of cavity；The motor flange of driving motor 1 is connected by bolt with lower chamber flange, and planetary reduction gear 7 is located at cavity of resorption
In vivo, the output shaft 8 of motor 1 is driven by the input axis connection of shaft coupling and planetary reduction gear 7；Planetary reduction gear 7 is included too
Positive wheel assembly, planetary wheeling assembly and internal gear disc component, left end cap 9 are both the part and planetary reduction gear of limiter housing
The left support plate of device 7, the planet carrier in planetary wheeling assembly carry output shaft 8, and the output shaft 8 is from the output shaft hole on left end cap 9
Stretch out, become the output shaft 8 of limiter of moment；The internal gear disc component includes left bearing 18, internal gear disc 20 and right bearing 19；
Left bearing 18 is located between left port and the left end cap 9 of internal gear disc 20, and right bearing 19 is located at the right output port and planet of internal gear disc 20
Between frame, make internal gear disc 20 that there is turning power；There is a radially extending driving lever on the external cylindrical surface top of internal gear disc 20
12；
The bracket component 13 include two support bracket bolt pairs 11, stent 13a, two stand spring 13b, axis pin 13c,
Four band convex shoulder bushing 13d and four spring base 13e；
Stent 13a has the shape of a rectangular parallelepiped, and has perforation upper and lower surface, rectangle spring mounting hole on stent 13a
13a4, spring mounting hole 13a4 are stretched along the anteroposterior direction of stent 13a, left and right of two spring mounting hole 13a4 along stent 13a
Direction arranges, and an isolation bar 13a7 is formed between two spring mounting hole 13a4, there is a square in the middle part of isolation bar 13a7
The driving lever hole 13a5 of shape, on the lower surface of isolation bar 13a7, the left and right two of driving lever hole 13a5 respectively there is one to stretch downwards
Gusset, two gussets form an ears 13a6, have the axis hole 13a1 of perforation in ears 13a6；In the preceding hole of spring mounting hole 13a4
Respectively there is a bush hole 13a3 on wall and rear hole wall, a band convex shoulder bushing 13d, band convex shoulder are installed in each bush hole 13a3
The convex shoulder of bushing 13d is located in spring mounting hole 13a4, and the cylindrical portions with convex shoulder bushing 13d stretch out the outside of stent 13a, branch
The screw rod of frame bolt pair 11 is passed through with the nut after the bolt hole on convex shoulder bushing 13d and limiter housing with support bracket bolt pair 11
With reference to, stent 13a is installed on limiter housing, above planetary reduction gear 7, the shape of spring base 13e and with convex
Shoulder piece set 13d is identical, has a spring base 13e, spring base 13e to be sleeved on support bracket bolt pair 11 at each band convex shoulder bushing 13d
Screw rod on, the convex shoulder on spring base 13e is bonded with convex shoulder bushing 13d convex shoulders, and stand spring 13b is sleeved on support bracket bolt pair 11
Screw rod on, in spring mounting hole 13a4, the end face of the both ends of stand spring 13b respectively against spring base 13e convex shoulders；Dial
Bar 12 penetrates in the 13a5 of driving lever hole from bottom to top, there is a kidney slot on driving lever 12, and axis pin 13c passes through the axis on ears 13a6
Kidney slot on hole 13a1 and driving lever 12, makes driving lever 12 and ears 13a6 form hinge connection；In the spring installation positioned at right side
There are the first block 13a2 and the second block 13a9, the first block 13a2 to be located at the second block on the upper surface of the right hole wall of hole 13a4
The front of 13a9；
The microswitch component 14 is located at the top of bracket component 13, and microswitch component 14 includes switch bracket
14a, the first microswitch 14b and the second microswitch 14c, the first microswitch 14b and the second microswitch 14c are normally closed
Switch；First microswitch 14b is fixed on the front portion of switch bracket 14a, and the second microswitch 14c is fixed on switch bracket 14a
Rear portion, switch bracket 14a is fixed on limiter housing；When bracket component 13 is in neutral position, the first microswitch
The triggering spring leaf of 14b is contacted with the front surface of the second block 13a9, the triggering spring leaf and first gear of the second microswitch 14c
The rear surface contact of block 13a2；The extraction wire of first microswitch 14b and the second microswitch 14c are inserted with electric connector respectively
The corresponding contact connection of seat 17；
When loading moment is not less than predetermined threshold in normal work, driving motor 1 is by shaft coupling, through sun wheel assembly
By power transmission to planetary wheeling assembly, at this time, internal gear disc 20 does not rotate, and normal work torque is exported by output shaft 8；
When output shaft 8 rotates clockwise, and loading moment exceedes predetermined threshold, output shaft 8 stops operating so that planet subtracts
Fast device 7 is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc 20 through planetary wheeling assembly
The elastic force for overcoming stand spring 13b by 12 flip stand component 13 of driving lever moves forward, and the first microswitch 14b's of compressing touches
Send out spring leaf and trigger the first microswitch 14b disconnections, the power supply of cut-out driving motor 1；
When output shaft 8 rotates counterclockwise, and loading moment exceedes predetermined threshold, output shaft 8 stops operating so that planet subtracts
Fast device 7 is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc 20 through planetary wheeling assembly
The elastic force of stand spring 13b is overcome to be moved rearwards by 12 flip stand component 13 of driving lever, the second microswitch 14c's of compressing touches
Send out spring leaf and trigger the second microswitch 14c disconnections, the power supply of cut-out driving motor 1.
The utility model has the advantages that：A kind of limiter of moment being used in rotary actuator is proposed, improves safety
Property, it is therefore prevented that the high current that overload stall produces causes to damage to motor, extends the use longevity of motor in rotary actuator
Life, meets the requirement of aviation rotary actuator.One embodiment of the utility model, tests prove that, rotate start
The service life of motor extends more than 2 times in device.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.In figure, direction is rear in paper, and the outer direction of paper is front, upper bottom left
Right direction is constant.
Fig. 2 is the structure diagram of bracket component 13.The position of Fig. 2 is that the position of bracket component is rotated down from Fig. 1
90°。
Fig. 3 is the structure diagram of stent 13a in bracket component 13.
Fig. 4 is the A-A sectional views of Fig. 3.
Fig. 5 is the structure diagram of microswitch component 14.
Fig. 6 is the B-B sectional views in Fig. 2.
Embodiment
The utility model is described in further details below.It is a kind of to be used in rotary actuator referring to Fig. 1 to Fig. 6
Limiter of moment, including limiter housing and driving motor 1；It is characterized in that：It further includes planetary reduction gear 7, bracket component
13rd, microswitch component 14 and electric connector socket 17；
The limiter housing includes lower housing shell 2, left end cap 9 and upper cover 16；There is receiving planetary reduction gear in lower housing shell 2
7 lower chamber, the right output port of lower chamber carry lower chamber flange, have receiving bracket component 13 and fine motion to open above lower chamber
The upper cavity of component 14, the open upper end of upper cavity are closed, upper cover 16 covers the upper port of upper cavity, and left end cap 9 covers
The left port of cavity；The motor flange of driving motor 1 is connected by bolt with lower chamber flange, and planetary reduction gear 7 is located at cavity of resorption
In vivo, the output shaft 8 of motor 1 is driven by the input axis connection of shaft coupling and planetary reduction gear 7；Planetary reduction gear 7 is included too
Positive wheel assembly, planetary wheeling assembly and internal gear disc component, left end cap 9 are both the part and planetary reduction gear of limiter housing
The left support plate of device 7, the planet carrier in planetary wheeling assembly carry output shaft 8, and the output shaft 8 is from the output shaft hole on left end cap 9
Stretch out, become the output shaft 8 of limiter of moment；The internal gear disc component includes left bearing 18, internal gear disc 20 and right bearing 19；
Left bearing 18 is located between left port and the left end cap 9 of internal gear disc 20, and right bearing 19 is located at the right output port and planet of internal gear disc 20
Between frame, make internal gear disc 20 that there is turning power；There is a radially extending driving lever on the external cylindrical surface top of internal gear disc 20
12；
The bracket component 13 include two support bracket bolt pairs 11, stent 13a, two stand spring 13b, axis pin 13c,
Four band convex shoulder bushing 13d and four spring base 13e；
Stent 13a has the shape of a rectangular parallelepiped, and has perforation upper and lower surface, rectangle spring mounting hole on stent 13a
13a4, spring mounting hole 13a4 are stretched along the anteroposterior direction of stent 13a, left and right of two spring mounting hole 13a4 along stent 13a
Direction arranges, and an isolation bar 13a7 is formed between two spring mounting hole 13a4, there is a square in the middle part of isolation bar 13a7
The driving lever hole 13a5 of shape, on the lower surface of isolation bar 13a7, the left and right two of driving lever hole 13a5 respectively there is one to stretch downwards
Gusset, two gussets form an ears 13a6, have the axis hole 13a1 of perforation in ears 13a6；In the preceding hole of spring mounting hole 13a4
Respectively there is a bush hole 13a3 on wall and rear hole wall, a band convex shoulder bushing 13d, band convex shoulder are installed in each bush hole 13a3
The convex shoulder of bushing 13d is located in spring mounting hole 13a4, and the cylindrical portions with convex shoulder bushing 13d stretch out the outside of stent 13a, branch
The screw rod of frame bolt pair 11 is passed through with the nut after the bolt hole on convex shoulder bushing 13d and limiter housing with support bracket bolt pair 11
With reference to, stent 13a is installed on limiter housing, above planetary reduction gear 7, the shape of spring base 13e and with convex
Shoulder piece set 13d is identical, has a spring base 13e, spring base 13e to be sleeved on support bracket bolt pair 11 at each band convex shoulder bushing 13d
Screw rod on, the convex shoulder on spring base 13e is bonded with convex shoulder bushing 13d convex shoulders, and stand spring 13b is sleeved on support bracket bolt pair 11
Screw rod on, in spring mounting hole 13a4, the end face of the both ends of stand spring 13b respectively against spring base 13e convex shoulders；Dial
Bar 12 penetrates in the 13a5 of driving lever hole from bottom to top, there is a kidney slot on driving lever 12, and axis pin 13c passes through the axis on ears 13a6
Kidney slot on hole 13a1 and driving lever 12, makes driving lever 12 and ears 13a6 form hinge connection；In the spring installation positioned at right side
There are the first block 13a2 and the second block 13a9, the first block 13a2 to be located at the second block on the upper surface of the right hole wall of hole 13a4
The front of 13a9；
The microswitch component 14 is located at the top of bracket component 13, and microswitch component 14 includes switch bracket
14a, the first microswitch 14b and the second microswitch 14c, the first microswitch 14b and the second microswitch 14c are normally closed
Switch；First microswitch 14b is fixed on the front portion of switch bracket 14a, and the second microswitch 14c is fixed on switch bracket 14a
Rear portion, switch bracket 14a is fixed on limiter housing；When bracket component 13 is in neutral position, the first microswitch
The triggering spring leaf of 14b is contacted with the front surface of the second block 13a9, the triggering spring leaf and first gear of the second microswitch 14c
The rear surface contact of block 13a2；The extraction wire of first microswitch 14b and the second microswitch 14c are inserted with electric connector respectively
The corresponding contact connection of seat 17；
When loading moment is not less than predetermined threshold in normal work, driving motor 1 is by shaft coupling, through sun wheel assembly
By power transmission to planetary wheeling assembly, at this time, internal gear disc 20 does not rotate, and normal work torque is exported by output shaft 8；
When output shaft 8 rotates clockwise, and loading moment exceedes predetermined threshold, output shaft 8 stops operating so that planet subtracts
Fast device 7 is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc 20 through planetary wheeling assembly
The elastic force for overcoming stand spring 13b by 12 flip stand component 13 of driving lever moves forward, and the first microswitch 14b's of compressing touches
Send out spring leaf and trigger the first microswitch 14b disconnections, the power supply of cut-out driving motor 1；
When output shaft 8 rotates counterclockwise, and loading moment exceedes predetermined threshold, output shaft 8 stops operating so that planet subtracts
Fast device 7 is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc 20 through planetary wheeling assembly
The elastic force of stand spring 13b is overcome to be moved rearwards by 12 flip stand component 13 of driving lever, the second microswitch 14c's of compressing touches
Send out spring leaf and trigger the second microswitch 14c disconnections, the power supply of cut-out driving motor 1.
Embodiment
Used driving motor 1, microswitch and electric connector socket 17 are finished parts.Loading moment not less than
During predetermined threshold, rotary actuator cuts off the working power of rotary actuator motor 1 by limiter of moment, avoids overload stall
The high current of generation causes to damage to rotary actuator motor 1, extends the service life of motor in rotary actuator.
Claims (1)
1. a kind of limiter of moment being used in rotary actuator, including limiter housing and driving motor (1)；Its feature exists
In：It further includes planetary reduction gear (7), bracket component (13), microswitch component (14) and electric connector socket (17)；
The limiter housing includes lower housing shell (2), left end cap (9) and upper cover (16)；There is receiving planet to subtract in lower housing shell (2)
The lower chamber of fast device (7), the right output port of lower chamber carry lower chamber flange, there is receiving bracket component (13) above lower chamber
With the upper cavity of microswitch component (14), the open upper end of upper cavity, upper cover (16) covers the upper port of upper cavity, left end
Lid (9) covers the left port of upper cavity；The motor flange of driving motor (1) is connected by bolt with lower chamber flange, planet
Retarder (7) is located in lower chamber, and the output shaft (8) of driving motor (1) passes through shaft coupling and the input shaft of planetary reduction gear (7)
Connection；Planetary reduction gear (7) includes sun wheel assembly, planetary wheeling assembly and internal gear disc component, and left end cap (9) is both limiter shell
The part of body, and be the left support plate of planetary reduction gear (7), the planet carrier in planetary wheeling assembly carries output shaft (8), should
Output shaft (8) is stretched out from the output shaft hole on left end cap (9), becomes the output shaft (8) of limiter of moment；The internal gear disc group
Part includes left bearing (18), internal gear disc (20) and right bearing (19)；Left bearing (18) is located at left port and a left side for internal gear disc (20)
Between end cap (9), right bearing (19) is located between right output port and the planet carrier of internal gear disc (20), has internal gear disc (20) and rotates
Ability；There is a radially extending driving lever (12) on the external cylindrical surface top of internal gear disc (20)；
The bracket component (13) includes two support bracket bolt pairs (11), stent (13a), two stand spring (13b), axis pins
(13c), four band convex shoulder bushings (13d) and four spring bases (13e)；
Stent (13a) has the shape of a rectangular parallelepiped, and has perforation upper and lower surface, rectangle spring mounting hole on stent (13a)
(13a4), spring mounting hole (13a4) are stretched along the anteroposterior direction of stent (13a), and two spring mounting holes (13a4) are along stent
The left and right directions of (13a) arranges, and an isolation bar (13a7) is formed between two spring mounting holes (13a4), in isolation bar
There is the driving lever hole (13a5) of a rectangle in the middle part of (13a7), on the lower surface of isolation bar (13a7), driving lever hole (13a5)
Respectively there is a gusset stretched downwards in left and right two, and two gussets form an ears (13a6), have perforation in ears (13a6)
Axis hole (13a1)；Respectively there is a bush hole (13a3) on the preceding hole wall and rear hole wall of spring mounting hole (13a4), in each lining
One band convex shoulder bushing (13d) of installation, the convex shoulder with convex shoulder bushing (13d) are located at spring mounting hole (13a4) in sets of holes (13a3)
Interior, the cylindrical portions with convex shoulder bushing (13d) stretch out the outside of stent (13a), and the screw rod of support bracket bolt pair (11) is passed through with convex
Nut after bolt hole on shoulder piece set (13d) and limiter housing with support bracket bolt secondary (11) is combined, and stent (13a) is installed
On limiter housing, above planetary reduction gear (7), the shape of spring base (13e) and with convex shoulder bushing (13d) phase
Together, there is a spring base (13e) at each band convex shoulder bushing (13d) place, spring base (13e) is sleeved on the spiral shell of support bracket bolt secondary (11)
On bar, the convex shoulder on spring base (13e) is bonded with convex shoulder bushing (13d) convex shoulder, and stand spring (13b) is sleeved on support bracket bolt pair
(11) on screw rod, in spring mounting hole (13a4), the both ends of stand spring (13b) are convex respectively against spring base (13e)
The end face of shoulder；Driving lever (12) penetrates in driving lever hole (13a5) from bottom to top, there is a kidney slot, axis pin on driving lever (12)
(13c) makes driving lever (12) and ears (13a6) through the kidney slot on the axis hole (13a1) and driving lever (12) on ears (13a6)
Form hinge connection；Have on the upper surface of the right hole wall of the spring mounting hole on right side (13a4) the first block (13a2) and
Second block (13a9), the first block (13a2) are located at the front of the second block (13a9)；
The microswitch component (14) is located at the top of bracket component (13), and microswitch component (14) includes switch bracket
(14a), the first microswitch (14b) and the second microswitch (14c), the first microswitch (14b) and the second microswitch
(14c) is normally closed switch；First microswitch (14b) is fixed on the front portion of switch bracket (14a), the second microswitch
(14c) is fixed on the rear portion of switch bracket (14a), and switch bracket (14a) is fixed on limiter housing；When bracket component (13)
During in neutral position, the triggering spring leaf of the first microswitch (14b) is contacted with the front surface of the second block (13a9), and second
The triggering spring leaf of microswitch (14c) is contacted with the rear surface of the first block (13a2)；First microswitch (14b) and second
The contact connection corresponding with electric connector socket (17) respectively of the extraction wire of microswitch (14c)；
When loading moment is not less than predetermined threshold in normal work, driving motor (1), will through sun wheel assembly by shaft coupling
To planetary wheeling assembly, at this time, internal gear disc (20) does not rotate power transmission, and normal work torque is exported by output shaft (8)；
When output shaft (8) rotates clockwise, and loading moment exceedes predetermined threshold, output shaft (8) stops operating so that planet subtracts
Fast device (7) is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc through planetary wheeling assembly
(20) elastic force for overcoming stand spring (13b) by driving lever (12) flip stand component (13) moves forward, and oppresses the first fine motion
The triggering spring leaf for switching (14b) triggers the first microswitch (14b) disconnection, the power supply of cut-out driving motor (1)；
When output shaft (8) rotates counterclockwise, when loading moment exceedes predetermined threshold, output shaft (8) stops operating so that planet subtracts
Fast device (7) is converted to fixed axis gear transmission, and sun wheel assembly gives torque drive to internal gear disc component, internal gear disc through planetary wheeling assembly
(20) elastic force for overcoming stand spring (13b) by driving lever (12) flip stand component (13) is moved rearwards, and oppresses the second fine motion
The triggering spring leaf for switching (14c) triggers the second microswitch (14c) disconnection, the power supply of cut-out driving motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351077.9U CN207333490U (en) | 2017-10-19 | 2017-10-19 | A kind of limiter of moment being used in rotary actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721351077.9U CN207333490U (en) | 2017-10-19 | 2017-10-19 | A kind of limiter of moment being used in rotary actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333490U true CN207333490U (en) | 2018-05-08 |
Family
ID=62365771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721351077.9U Withdrawn - After Issue CN207333490U (en) | 2017-10-19 | 2017-10-19 | A kind of limiter of moment being used in rotary actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
-
2017
- 2017-10-19 CN CN201721351077.9U patent/CN207333490U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
| CN107630942B (en) * | 2017-10-19 | 2024-04-12 | 兰州万里航空机电有限责任公司 | Moment limiter for rotary actuator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180508 Effective date of abandoning: 20240412 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180508 Effective date of abandoning: 20240412 |