[go: up one dir, main page]

CN109250151B - A loading torque control and self-locking device - Google Patents

A loading torque control and self-locking device Download PDF

Info

Publication number
CN109250151B
CN109250151B CN201810895588.XA CN201810895588A CN109250151B CN 109250151 B CN109250151 B CN 109250151B CN 201810895588 A CN201810895588 A CN 201810895588A CN 109250151 B CN109250151 B CN 109250151B
Authority
CN
China
Prior art keywords
shaft
gear
spline
output
input shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810895588.XA
Other languages
Chinese (zh)
Other versions
CN109250151A (en
Inventor
沈晓鹏
蒋彦超
叶甲秋
孙西龙
林艳
张崇峰
甘克力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Aerospace System Engineering Institute
Shanghai Academy of Spaceflight Technology SAST
Original Assignee
Shanghai Aerospace System Engineering Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Aerospace System Engineering Institute filed Critical Shanghai Aerospace System Engineering Institute
Priority to CN201810895588.XA priority Critical patent/CN109250151B/en
Publication of CN109250151A publication Critical patent/CN109250151A/en
Application granted granted Critical
Publication of CN109250151B publication Critical patent/CN109250151B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64GCOSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00Cosmonautic vehicles
    • B64G1/22Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

一种加载力矩控制及自锁装置,包括:输入轴通过轴承支承在壳体上,输出轴通过轴承支承在壳体上,为保证输入轴和输出轴转动稳定性,输出轴端部通过轴承支承在输入轴内;花键套通过销在固定在输入轴上;花键轴与花键套啮合,花键轴可以相对于花键套沿着输入轴的轴线滑动;被动轴通过输出轴上的键结构B联接在其上;输出齿圈通过被动轴上的键结构C联接在其上;被动轴的键结构C与输出齿圈之间安装有两个弹簧;弹簧安装在花键套与花键轴之间,用于提供主动滚珠与被动滚珠之间初始接触力;双联齿轮通过轴承支承在壳体上;双联齿轮分别与输出齿圈、蜗杆齿轮的锥齿轮部分啮合;蜗轮通过键结构A安装在输出轴上,蜗轮与蜗杆齿轮的蜗杆部分啮合。

Figure 201810895588

A loading torque control and self-locking device, comprising: an input shaft is supported on a casing through a bearing, an output shaft is supported on the casing through a bearing, and in order to ensure the rotational stability of the input shaft and the output shaft, the end of the output shaft is supported by the bearing In the input shaft; the spline sleeve is fixed on the input shaft through a pin; the spline shaft meshes with the spline sleeve, and the spline shaft can slide relative to the spline sleeve along the axis of the input shaft; the driven shaft passes through the shaft on the output shaft The key structure B is connected to it; the output ring gear is connected to it through the key structure C on the driven shaft; two springs are installed between the key structure C of the driven shaft and the output ring gear; the spring is installed on the spline sleeve and the spline Between the key shafts, it is used to provide the initial contact force between the active ball and the passive ball; the double gear is supported on the housing through the bearing; the double gear meshes with the output ring gear and the bevel gear of the worm gear respectively; the worm gear passes through the key Structure A is mounted on the output shaft, and the worm gear meshes with the worm portion of the worm gear.

Figure 201810895588

Description

Loading moment control and self-locking device
Technical Field
The invention relates to the technical field of space mechanism transmission, in particular to a loading torque control and self-locking device which has the functions of forward loading torque control and reverse transmission self-locking.
Background
At present, in the known aerospace transmission mechanism, the application of mechanical loading torque control is less, and a friction plate type clutch is used for realizing the loading torque control in a few applications. Above-mentioned technical scheme can realize certain loading torque control, but friction disc moment fluctuation is great, and simultaneously when the reverse load grow, the clutch will skid in the reverse direction to lead to the reverse drive of driving chain, cause the position of mechanism to change, lead to mechanism's functional failure.
Disclosure of Invention
The invention provides a loading torque control and self-locking device, aiming at solving the problems that the loading torque control device in the prior art has large torque fluctuation and can not realize reverse self-locking to cause mechanism function failure. The invention relates to a device which can realize forward loading torque control and reverse transmission self-locking.
The invention relates to a loading moment control and self-locking device, which comprises: the input shaft is supported on the shell through a bearing, the output shaft is supported on the shell through a bearing, and in order to ensure the rotational stability of the input shaft and the output shaft, the end part of the output shaft is supported in the input shaft through a bearing; the spline sleeve is fixed on the input shaft through a pin and rotates together with the input shaft;
the spline shaft is meshed with the spline housing, and the spline shaft can slide relative to the spline housing along the axis of the input shaft;
the driven shaft is connected to the driven shaft through a key structure B on the output shaft;
the output gear ring is connected with the driven shaft through a key structure C on the driven shaft;
two springs are arranged between the key structure C of the driven shaft and the output gear ring;
ten driving balls are embedded in the spline housing;
ten driven balls are embedded in the driven shaft;
in the initial state, the driving balls and the driven balls are distributed along the circumferential direction in a staggered manner;
the spring is arranged between the spline sleeve and the spline shaft and used for providing initial contact force between the driving ball and the driven ball;
the duplicate gear is supported on the shell through a bearing;
the duplicate gear is respectively meshed with the bevel gear parts of the output gear ring and the worm gear;
the worm wheel is mounted on the output shaft by means of a key structure a, the worm wheel being in engagement with the worm portion of the worm gear.
After the technical scheme is adopted, the self-locking mechanism has the characteristics of forward loading torque control and reverse transmission self-locking, can stably maintain the position of the mechanism, and has the beneficial effects of simple structure, light weight and high transmission efficiency.
Drawings
FIG. 1 is a schematic view of a forward drive configuration of the present invention;
FIG. 2 is a partial cross-sectional view of the forward drive of the present invention;
FIG. 3 is a schematic view of the reverse drive configuration of the present invention;
FIG. 4 is a partial cross-sectional view of the reverse drive of the present invention;
figure 5 is a partial cross-sectional view of the ball bearing of the present invention.
In fig. 1 to 5: 1-output shaft, 2-worm gear, 3-duplicate gear, 4-bearing, 5-spline housing, 6-bearing, 7-input shaft, 8-bearing, 9-pin, 10-spring, 11-spline shaft, 12-driving ball, 13-driven ball, 14-driven shaft, 15-output gear ring, 16-worm gear, 17-shell, 18-bearing, 19-spring.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a forward drive of the present invention, fig. 2 is a partial sectional view of the forward drive of the present invention, and fig. 5 is a partial sectional view of a ball portion of the present invention: as shown in the embodiments shown in fig. 1, 2 and 5, the apparatus comprises: the input shaft 7 is supported on the housing 17 through the bearing 8, the output shaft 1 is supported on the housing 17 through the bearing 18, and in order to ensure the rotation stability of the input shaft 7 and the output shaft 1, the end part of the output shaft 1 is supported in the input shaft 7 through the bearing 6. The spline housing 5 is fixed to the input shaft 7 by a pin 9 and rotates together with the input shaft 7. Spline shaft 11 is engaged with spline housing 5 by a spline pair, and spline shaft 11 is slidable relative to spline housing 5 along the axis of input shaft 7. The driven shaft 14 is coupled thereto by a key structure B on the output shaft 1. The output ring gear 15 is coupled to the driven shaft 14 by a key structure C. Two springs 19 are mounted between the key structure C of the driven shaft 14 and the output ring gear 15. Ten driving balls 12 are embedded in the spline housing 11. Ten driven balls 13 are embedded in the driven shaft 14. In the initial state, the driving balls 12 and the driven balls 13 are distributed along the circumferential direction in a staggered manner. A spring 10 is installed between the spline housing 5 and the spline shaft 11 for providing an initial contact force between the driving balls 12 and the driven balls 13. The double gear 3 is supported on the housing 17 by a bearing 4. The dual gear 3 consists of a straight gear and a bevel gear, the straight gear is meshed with the output gear ring 15, and the bevel gear is meshed with the bevel gear part of the worm gear 2. The worm wheel 16 is mounted on the output shaft 1 by a key structure a, and the worm wheel 16 is engaged with the worm portion of the worm gear 2.
The operation of the present invention is described below. The description is given taking the clockwise rotation of the input shaft 7 as an example, and the counterclockwise rotation of the input shaft 7 is also applicable.
Fig. 1 is a schematic view of a forward drive structure of the present invention, fig. 2 is a partial sectional view of the forward drive structure of the present invention, and fig. 5 is a partial sectional view of a ball portion of the present invention. In the initial state, the driving balls 12 and the driven balls 13 are distributed along the circumferential direction in a staggered manner. The spring 10 presses the driving ball 12 and the driven ball 13 against each other.
When power transmission is started, the input shaft 7 rotates clockwise, the spline housing 5 is driven to rotate clockwise through the pin 9, and the spline housing 5 drives the spline shaft 11 to rotate clockwise through the spline pair. Because the driving balls 12 and the driven balls 13 are distributed along the circumferential direction in a staggered manner, and simultaneously the springs 10 enable the driving balls 12 and the driven balls 13 to generate contact pressure, power is transmitted to the driven balls 13 from the driving balls 12, so that the driven shaft 14 is driven to rotate clockwise. The driven shaft 14 transmits power to the output shaft 1 through the key structure B, so that the output shaft 1 is driven to rotate clockwise. The driven shaft 14 simultaneously transmits motion to the output gear ring 15 through the spring 19, the output gear ring 15 transmits motion to the straight gear of the dual gear 3, the bevel gear part of the dual gear 3 transmits power to the bevel gear part of the worm gear 2, so that the worm gear 2 is driven to rotate, the worm gear 2 drives the worm wheel 16 to rotate when rotating, and the worm wheel 16 is simultaneously connected to the output shaft 1 through the key structure A and synchronously rotates with the output shaft 1.
When the load on the output shaft 1 increases gradually, the power transmitted by the spring force provided by the spring 10 is not sufficient to overcome the load, and the output shaft 1 will not rotate. The input shaft 7 continues to rotate, the passive balls 13 will press the active balls 12, forcing the active balls 12 to move backward, and the active balls 12 will push the spline shaft 11 to move backward along the axis of the input shaft 7. When the active ball 12 crosses the passive ball 13, the active ball 12 will be reset by the spring 10 and then contact the next passive ball 13, so that the input shaft 7 will slip relative to the output shaft 1 and generate a continuous torque on the output shaft 1, and the torque applied to the output shaft 1 can be controlled by adjusting the magnitude of the spring force of the spring 10.
When the invention transmits power in the forward direction, because the key structure C of the driven shaft 14 and the output gear ring 15 are provided with the spring 19, and the spring force of the spring 19 is very small, the invention can ensure that the power of the input shaft 7 is transmitted to the output shaft 1 through the driven shaft 14, and the driven shaft 14 only transmits motion but not power to the output gear ring 15, thereby avoiding the problem of low transmission efficiency when the worm gear pair transmits power in the forward direction.
Fig. 3 is a schematic view of a reverse drive structure of the present invention, and fig. 4 is a partial sectional view of the reverse drive structure of the present invention. When the input shaft 7 slips relative to the output shaft 1, indicating that the torque applied to the output shaft 1 reaches the set value, the input shaft 7 stops rotating. When the load of the output shaft 1 becomes large, the output shaft 1 will have a tendency to rotate in the reverse direction, and the load of the output shaft 1 is transmitted to the worm wheel 16 through the key structure a. Due to the self-locking effect of the worm wheel 16 and the worm gear pair of the worm gear 2, the output shaft 1 will not rotate. It is thereby achieved that the position is maintained even when the load on the output shaft 1 becomes large without the occurrence of reverse rotation leading to mechanism malfunction.
As shown above, the invention has the characteristics of forward loading torque control and reverse transmission self-locking, can stably maintain the position of the mechanism, and has the advantages of simple structure, light weight and high transmission efficiency.
While the invention will be described in connection with only one preferred embodiment, it will be understood that it is not intended to limit the invention to that embodiment. On the contrary, the invention is intended to cover all alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.

Claims (3)

1.一种加载力矩控制及自锁装置,其特征在于,包括:1. A loading torque control and self-locking device is characterized in that, comprising: 输入轴通过第一轴承支承在壳体上,输出轴通过第二轴承支承在壳体上,为保证输入轴和输出轴转动稳定性,输出轴端部通过第三轴承支承在输入轴内;花键套通过销在固定在输入轴上,并与输入轴一并转动;The input shaft is supported on the casing through the first bearing, and the output shaft is supported on the casing through the second bearing. To ensure the rotational stability of the input shaft and the output shaft, the end of the output shaft is supported in the input shaft through a third bearing; The key sleeve is fixed on the input shaft through a pin, and rotates together with the input shaft; 花键轴与花键套啮合,花键轴可以相对于花键套沿着输入轴的轴线滑动;The spline shaft is engaged with the spline sleeve, and the spline shaft can slide relative to the spline sleeve along the axis of the input shaft; 被动轴通过输出轴上的键结构B联接在其上;The passive shaft is connected to it through the key structure B on the output shaft; 输出齿圈通过被动轴上的键结构C联接在其上;The output ring gear is connected to it through the key structure C on the passive shaft; 被动轴的键结构C与输出齿圈之间安装有两个弹簧;Two springs are installed between the key structure C of the driven shaft and the output ring gear; 十个主动滚珠内嵌于花键轴中;Ten active balls are embedded in the spline shaft; 十个被动滚珠内嵌于被动轴中;Ten passive balls are embedded in the passive shaft; 初始状态下,主动滚珠和被动滚珠沿周向错位分布;In the initial state, the active balls and passive balls are dislocated along the circumferential direction; 弹簧安装在花键套与花键轴之间,用于提供主动滚珠与被动滚珠之间初始接触力;双联齿轮通过第四轴承支承在壳体上;The spring is installed between the spline sleeve and the spline shaft to provide the initial contact force between the active ball and the passive ball; the double gear is supported on the housing through the fourth bearing; 双联齿轮分别与输出齿圈、蜗杆齿轮的锥齿轮部分啮合;The double gear meshes with the output ring gear and the bevel gear part of the worm gear respectively; 蜗轮通过键结构A安装在输出轴上,蜗轮与蜗杆齿轮的蜗杆部分啮合。The worm gear is mounted on the output shaft through the key structure A, and the worm gear meshes with the worm part of the worm gear. 2. 根据权利要求1所述的一种加载力矩控制及自锁装置,其特征在于, 所述双联齿轮由直齿轮和锥齿轮两部分组成,直齿轮与输出齿圈啮合,锥齿轮与蜗杆齿轮的锥齿轮部分啮合。2. A loading torque control and self-locking device according to claim 1, wherein the double gear is composed of a spur gear and a bevel gear, the spur gear meshes with the output ring gear, and the bevel gear and the worm The bevel gear portion of the gear meshes. 3.根据权利要求1所述的一种加载力矩控制及自锁装置,其特征在于, 所述花键轴与花键套通过花键副啮合。3 . The loading torque control and self-locking device according to claim 1 , wherein the spline shaft and the spline sleeve are engaged through a spline pair. 4 .
CN201810895588.XA 2018-08-08 2018-08-08 A loading torque control and self-locking device Active CN109250151B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810895588.XA CN109250151B (en) 2018-08-08 2018-08-08 A loading torque control and self-locking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810895588.XA CN109250151B (en) 2018-08-08 2018-08-08 A loading torque control and self-locking device

Publications (2)

Publication Number Publication Date
CN109250151A CN109250151A (en) 2019-01-22
CN109250151B true CN109250151B (en) 2021-06-18

Family

ID=65048859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810895588.XA Active CN109250151B (en) 2018-08-08 2018-08-08 A loading torque control and self-locking device

Country Status (1)

Country Link
CN (1) CN109250151B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114345951B (en) * 2022-02-17 2025-06-24 大连富地重工机械制造有限公司 A kind of error-correcting self-locking transmission docking device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69608717D1 (en) * 1995-02-18 2000-07-13 Lucas Industries Ltd Torque limiter
RU2270793C2 (en) * 2003-12-01 2006-02-27 Государственный научно-производственный ракетно-космический центр "ЦСКБ-Прогресс" (ГНПРКЦ "ЦСКБ-Прогресс") Stand for simulating action of solar battery on spacecraft
CN102384180A (en) * 2010-08-26 2012-03-21 拓基轴承株式会社 Torque limiter
CN105173123A (en) * 2015-08-14 2015-12-23 西北工业大学 Electromagnetic self-locking plane connection device
CN206036164U (en) * 2016-08-31 2017-03-22 无锡凯绎科技有限公司 Two -way overload protection transmission
CN107191578A (en) * 2017-05-23 2017-09-22 深圳市兆威机电有限公司 It is a kind of to be driven output mechanism, gear-box and the assemble method for being driven output mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69608717D1 (en) * 1995-02-18 2000-07-13 Lucas Industries Ltd Torque limiter
RU2270793C2 (en) * 2003-12-01 2006-02-27 Государственный научно-производственный ракетно-космический центр "ЦСКБ-Прогресс" (ГНПРКЦ "ЦСКБ-Прогресс") Stand for simulating action of solar battery on spacecraft
CN102384180A (en) * 2010-08-26 2012-03-21 拓基轴承株式会社 Torque limiter
CN105173123A (en) * 2015-08-14 2015-12-23 西北工业大学 Electromagnetic self-locking plane connection device
CN206036164U (en) * 2016-08-31 2017-03-22 无锡凯绎科技有限公司 Two -way overload protection transmission
CN107191578A (en) * 2017-05-23 2017-09-22 深圳市兆威机电有限公司 It is a kind of to be driven output mechanism, gear-box and the assemble method for being driven output mechanism

Also Published As

Publication number Publication date
CN109250151A (en) 2019-01-22

Similar Documents

Publication Publication Date Title
CN107917175B (en) Differential limiting device for vehicle
ES2439072T3 (en) Clutch operated by sliding damping of initial limit torque
US20170130815A1 (en) Compact electronically controlled front wheel drive torque vectoring system with single or dual axle modulation
CN114412972B (en) Planetary Transmissions, Powertrains and Vehicles
CN109250151B (en) A loading torque control and self-locking device
WO2022214049A1 (en) Clutch execution mechanism and vehicle
CN103233987A (en) Torque transmitting system
CN102345689B (en) torque actuated clutch
EP1482194B1 (en) Drive apparatus
JPWO2022215449A5 (en)
US2219877A (en) Clutch construction
CN108317184B (en) One-way clutch between shafts
CN201351721Y (en) Speed reducer with overload protection function
WO2015146465A1 (en) Multi-plate clutch mechanism
CN111971494A (en) Shift actuator
JP7343595B2 (en) Drive force transmission mechanism and method for stopping transmission of rotational motion from input element to output element
CN222254801U (en) Coaxial input-output bidirectional backstop transmission mechanism
JP6248920B2 (en) Meshing engagement mechanism
CN204312683U (en) A kind of dual Gear Trains reducing sideshake
US20070272507A1 (en) All-wheel drive (AWD) coupling with a variable travel ratio and wear compensation
CN111828503A (en) an engine drive
JP2007333133A (en) Differential gear
CN109253182A (en) Disc brake type automobile clutch
JP2022031042A (en) Friction clutch
WO2016014827A1 (en) Compact electronically controlled front wheel drive torque vectoring system with single or dual axle modulation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20230625

Address after: No.3888 Yuanjiang Road, Minhang District, Shanghai 201109

Patentee after: AEROSPACE SYSTEM ENGINEERING SHANGHAI

Patentee after: SHANGHAI ACADEMY OF SPACEFLIGHT TECHNOLOGY

Address before: No.3888 Yuanjiang Road, Minhang District, Shanghai 201109

Patentee before: AEROSPACE SYSTEM ENGINEERING SHANGHAI

TR01 Transfer of patent right