CN116085428A - Reverse double-output-shaft multistage speed reducer with self-locking function - Google Patents

Reverse double-output-shaft multistage speed reducer with self-locking function Download PDF

Info

Publication number
CN116085428A
CN116085428A CN202310320110.5A CN202310320110A CN116085428A CN 116085428 A CN116085428 A CN 116085428A CN 202310320110 A CN202310320110 A CN 202310320110A CN 116085428 A CN116085428 A CN 116085428A
Authority
CN
China
Prior art keywords
gear
shaft
bevel gear
manual
worm
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.)
Pending
Application number
CN202310320110.5A
Other languages
Chinese (zh)
Inventor
党胜茂
邢旭
李学兵
司育春
王芳
景娟娟
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.)
Northwest Machine Co Ltd
Original Assignee
Northwest Machine Co Ltd
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 Northwest Machine Co Ltd filed Critical Northwest Machine Co Ltd
Priority to CN202310320110.5A priority Critical patent/CN116085428A/en
Publication of CN116085428A publication Critical patent/CN116085428A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/2854—Toothed gearings for conveying rotary motion with gears having orbital motion involving conical gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/30—Toothed gearings for conveying rotary motion with gears having orbital motion in which an orbital gear has an axis crossing the main axes of the gearing and has helical teeth or is a worm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/038—Gearboxes for accommodating bevel gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/039—Gearboxes for accommodating worm gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a reverse double-output-shaft multistage speed reducer with a self-locking function, which comprises a servo motor, an NGW type planetary transmission mechanism, a bevel gear mechanism, a worm gear mechanism, a cylindrical gear transmission mechanism and a bevel gear transmission reverse double-output-shaft mechanism, wherein the worm gear mechanism is also connected with a bidirectional manual input mechanism, the output end of the servo motor is in transmission connection with the NGW type planetary transmission mechanism, the worm gear mechanism comprises a worm and a worm wheel, the NGW type planetary transmission mechanism is in transmission connection with the bevel gear mechanism, the bevel gear mechanism and the bidirectional manual input mechanism are in transmission connection with the worm, the bidirectional manual input mechanism comprises a manual bevel gear I, a manual shaft and a manual bevel gear II, the bevel gear transmission reverse double-output-shaft mechanism comprises a bevel gear III, a bevel gear right output shaft and a bevel gear left output shaft, and the bevel gear III is connected with the cylindrical gear transmission mechanism. The invention only needs to arrange two reducers, occupies small space, and has reliable and safe self-locking function.

Description

Reverse double-output-shaft multistage speed reducer with self-locking function
Technical Field
The invention belongs to the technical field of reduction boxes, and particularly relates to a reverse double-output-shaft multistage speed reducer with a self-locking function.
Background
At present, the aircraft hanging bullet generally adopts a manual hanging bullet or a hanging bullet vehicle hanging bullet, and the manual hanging bullet has low efficiency and low precision; when the bullet hanging vehicle is used for hanging bullet, the bullet hanging vehicle needs to be moved to the bottom of the aircraft, so that the bullet hanging vehicle is not easy to enter and exit due to the space limitation under the aircraft in the bullet hanging process; in addition, the hanging bullet process also needs to adjust the positions of the hanging bullet vehicles for a plurality of times to ensure that the connection interfaces of the hanging bullet positions of the hanging bullet frames and the aircraft are aligned, so that the operation difficulty is high, the utilization rate of human resources is insufficient, the hanging bullet efficiency is greatly reduced, and the safety is poor. With the advent of aircraft hanging bullet elevator systems, after the hanging bullet rack with the fixed bullet body is lifted in place, the hanging bullet rack is locked and positioned by a locking driving mechanism. The locking driving mechanism drives the speed reducing mechanism to rotate by the low-power servo motor, so that the locking hook penetrates through the corresponding positioning hole on the bullet hanging frame, and the bullet hanging frame is limited, fixed and locked. However, four reducers are needed to be arranged in the locking driving mechanism at present to synchronously limit, fix and lock the hanging bullet rack, and the size is large.
Therefore, the reverse double-output-shaft multistage speed reducer with the self-locking function is compact in structure, reasonable in design, large in total reduction ratio, reliable and safe in self-locking function, and capable of realizing torque increase transmission, only needs to be provided with two speed reducers, occupies small space, and is effectively suitable for a locking driving mechanism of an aircraft hanging bullet lifting machine system.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides the reverse double-output-shaft multistage speed reducer with a self-locking function, which has the advantages of compact structure, reasonable design, large total reduction ratio, realization of torque increase transmission, small occupied space, effective adaptation to a locking driving mechanism of an aircraft hanging bullet elevator system, and reliable and safe self-locking function.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a reverse double output shaft multistage speed reducer that possesses self-locking function which characterized in that: the device comprises a servo motor, and an NGW type planetary transmission mechanism, a bevel gear mechanism, a worm gear mechanism, a cylindrical gear transmission mechanism and a bevel gear transmission reverse double-output-shaft mechanism which are arranged in the main shell and are sequentially connected in a transmission manner, wherein the worm gear mechanism is also connected with a bidirectional manual input mechanism;
the output end of the servo motor is in transmission connection with the NGW type planetary transmission mechanism, the worm gear and worm mechanism comprises a worm arranged in a main shell and a worm wheel meshed with the worm, the worm is arranged in the vertical direction, the NGW type planetary transmission mechanism is in transmission connection with the bevel gear mechanism, and the bevel gear mechanism and the bidirectional manual input mechanism are in transmission connection with the worm;
the two-way manual input mechanism comprises a first manual bevel gear, a manual shaft and a second manual bevel gear, wherein the second manual bevel gear is sleeved on the top end of the worm and meshed with the first manual bevel gear;
the bevel gear transmission reverse double-output-shaft mechanism comprises a bevel gear III, a bevel gear right output shaft and a bevel gear left output shaft, and the bevel gear III is connected with the cylindrical gear transmission mechanism.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the NGW type planetary transmission mechanism comprises a sun gear, a plurality of planetary gears which are uniformly distributed along the circumferential direction of the sun gear and meshed with the sun gear, an annular gear which is arranged outside the plurality of planetary gears in a surrounding manner and meshed with the planetary gears, and a planetary carrier for installing the plurality of planetary gears, wherein the planetary gears are connected with the planetary carrier through planetary shafts, and the annular gear is arranged on the inner side wall of the main shell;
the transmission shaft of the sun gear is inserted into the servo motor shaft and is in transmission connection.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the bevel gear mechanism comprises a small bevel gear sleeved at the tail end of the planet carrier and a large bevel gear meshed with the small bevel gear, and the small bevel gear and the large bevel gear are in 90-degree orthogonal transmission;
the big bevel gear is sleeved at the upper end of the worm.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the manual bevel gear I comprises a manual straight shaft section and a manual bevel gear part integrally formed with the manual straight shaft section, the manual shaft comprises a connecting shaft end, an intermediate shaft section and an end shaft section which are integrally formed, the connecting shaft end is in transmission connection with the manual bevel gear part, and the outer diameters of the intermediate shaft section, the end shaft section and the connecting shaft end are sequentially reduced;
the manual bevel gear II is sleeved on the top end of the worm and meshed with the manual bevel gear part;
the front side of the back of the main shell is provided with a first manual input interface and a second manual input interface which are symmetrically arranged, the manual straight shaft section stretches into the first manual input interface, and the end shaft section stretches into the second manual input interface.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the inner side wall of the first manual input interface is provided with a first internal thread, a first square hole is formed in the manual straight shaft section, a connecting round hole is formed in the manual bevel gear part, the connecting round hole extends into the manual straight shaft section and is communicated with the first square hole, the cross section area of the connecting round hole is larger than that of the first square hole, and the connecting shaft end is inserted into the connecting round hole and is in transmission connection with the manual bevel gear part through a cylindrical pin;
the inner side wall of the second manual input interface is provided with a second internal thread, and a second square hole is formed in the end shaft section;
the manual straight shaft section and the end shaft section are rotatably arranged in the first manual input interface and the second manual input interface through needle bearings on the punching outer ring.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the cylindrical gear transmission mechanism comprises a first gear shaft for installing a worm gear, a first gear arranged at the other end of the first gear shaft, a transition double gear meshed with the first gear shaft and the first gear, and a second gear shaft and a second gear meshed with the transition double gear, wherein two transition gears are arranged at two ends of the transition double gear, one transition gear is meshed with the first gear of the first gear shaft and the second gear of the second gear shaft, and the other transition gear is meshed with the first gear and the second gear;
the gear shaft I and the gear I are coaxially arranged on two sides of the worm wheel and have the same tooth shape and are aligned; the second gear is arranged at the other end of the second gear shaft, and the second gear shaft and the second gear are coaxially arranged and have the same tooth shape and are aligned.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the right bevel gear of the right output shaft of the bevel gear and the left bevel gear of the left output shaft of the bevel gear are meshed with the bevel gear III, the bevel gear III is sleeved on the gear shaft II and is spliced with the gear II, and the gear shaft II, the bevel gear III and the gear II are coaxially arranged;
and splines are arranged at the output ends of the right output shaft and the left output shaft of the bevel gear, which extend out of the main shell.
The reverse double-output-shaft multistage speed reducer with the self-locking function is characterized in that: the worm is arranged in a right-leaning position in the main shell in a vertical direction, the worm wheel is arranged in a left-leaning position in the main shell, the worm is a single-head worm, and the number of teeth of the worm wheel is 33 teeth;
the lead angle of the worm is less than the equivalent friction angle between the teeth of the meshing worm gear.
Compared with the prior art, the invention has the following advantages:
1. the speed reducing box is suitable for the functions of matching the rotating speed between the small-power servo motor and the locking hook in the locking driving mechanism of the aircraft hanging bullet lifting machine system and increasing the output torque, so that after the lifting of the hanging bullet frame in place by the lifting machine system is completed, the locking hook is driven by the speed reducing box to lock and position the hanging bullet frame.
2. The invention is provided with the planetary transmission mechanism, the bevel gear transmission mechanism, the bidirectional manual input mechanism, the worm gear transmission mechanism, the cylindrical gear transmission mechanism and the bevel gear transmission reverse double-output-shaft mechanism multistage transmission mechanism, so that the total reduction ratio of the speed reducer is large (the total reduction ratio is close to 1:390), the torque can be increased and transmitted, and the whole structure is compact and small, thereby reducing the whole weight to meet the severe requirements of the aircraft on the weight of the components.
3. The invention provides a bidirectional manual input mechanism which comprises a first manual bevel gear, a manual shaft and a second manual bevel gear, wherein an interface of the bidirectional manual input mechanism is vertical to the front and rear surfaces of a main shell, in an emergency, the second manual bevel gear can be driven by the manual interface to drive the first manual bevel gear, the second manual bevel gear is arranged at the top end of a worm, the worm can drive a subsequent mechanism to move, and finally, a locking system of an aircraft missile hanging elevator locks a missile hanging frame, so that the locking system of the elevator can be used in the emergency, and the locking is safe and reliable, thereby avoiding faults or accidents.
4. The worm and gear transmission mechanism comprises the worm and the worm wheel, when the lead angle of the worm is smaller than the equivalent friction angle between the engaged worm wheel teeth, the worm and gear transmission mechanism has a self-locking function, reverse self-locking can be realized, and the self-locking function plays a very important role in safety protection.
5. The bevel gear transmission reversing double-output-shaft mechanism comprises a bevel gear III, a bevel gear right output shaft and a bevel gear left output shaft which are arranged on the left side and the right side of a main shell, wherein the bevel gear III is meshed with the bevel gears at one ends of the bevel gear right output shaft and the bevel gear left output shaft, when the bevel gear III rotates under the drive of a cylindrical gear transmission mechanism, the bevel gear right output shaft and the bevel gear left output shaft rotate in opposite directions, so that the use requirement of the reversing double-output shafts of a locking driving system of an aircraft hanging spring hoist is met, and the use quantity of a speed reducer is reduced.
In conclusion, the invention has the advantages of simple structure, reasonable design, large total reduction ratio, realization of torque increase transmission, only two reducers are needed, small occupied space, effective adaptation to the locking driving mechanism of the aircraft hanging bullet elevator system, and reliable and safe self-locking function.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a D-D sectional view of fig. 1.
Fig. 3 is a cross-sectional view of C-C in fig. 1.
Fig. 4 is a schematic diagram of the position of the transition double gear and gear two of the present invention.
Reference numerals illustrate:
1-a sun gear; 1-2-planetary gear; 1-3-an inner gear ring;
1-4-planetary shaft; 1-5-planet carrier; 2-1-bevel pinion;
2-big bevel gear; 2-2-1-support ring; 2-2-2-a retainer ring for holes;
3-1, a manual bevel gear I; 3-1-manual straight shaft section; 3-1-2-first square holes;
3-1-3-connecting round holes; 3-1-4-manual bevel gear part; 3-2-a manual shaft;
3-2-1-connecting shaft ends; 3-2-intermediate shaft section; 3-2-3-end shaft segments;
3-2-4-second square holes; 3-a manual bevel gear II; 3-3-1-countersunk head screws;
3-3-2-pressing plate; 3-4—a first manual input interface; 3-4-1-first internal threads;
3-5-a second manual input interface; 3-5-1-second internal threads; 4-1-worm;
4-2-worm gear; 5-1, a first gear shaft; 5-2-gear one;
5-3-transition double gears; 5-4, namely a second gear shaft; 5-gear II;
6-1-bevel gears III; 6-2-bevel gear right output shaft; 6-2-1-right inner sleeve;
6-2-outer cover plate; 6-3-bevel gear left output shaft; 6-3-1-left inner sleeve;
6-3-2-outer sleeve; 7-a main housing; 7-1, a round cover plate;
10-servo motor.
Detailed Description
As shown in fig. 1 to 4, the invention comprises a servo motor 10, and an NGW type planetary transmission mechanism, a bevel gear mechanism, a worm gear mechanism, a cylindrical gear transmission mechanism and a bevel gear transmission reverse double-output-shaft mechanism which are arranged in the main shell 7 and are sequentially connected in a transmission way, wherein the worm gear mechanism is also connected with a bidirectional manual input mechanism;
the output end of the servo motor 10 is in transmission connection with the NGW type planetary transmission mechanism, the worm gear and worm mechanism comprises a worm 4-1 arranged in a main shell 7 and a worm wheel 4-2 meshed with the worm 4-1, the worm 4-1 is arranged in a vertical direction, the NGW type planetary transmission mechanism is in transmission connection with the bevel gear mechanism, and the bevel gear mechanism and the bidirectional manual input mechanism are in transmission connection with the worm 4-1;
the bidirectional manual input mechanism comprises a first manual bevel gear 3-1, a manual shaft 3-2 and a second manual bevel gear 3-3, wherein the second manual bevel gear 3-3 is sleeved on the top end of the worm 4-1 and meshed with the first manual bevel gear 3-1;
the bevel gear transmission reverse double-output-shaft mechanism comprises a bevel gear III 6-1, a bevel gear right output shaft 6-2 and a bevel gear left output shaft 6-3, and the bevel gear III 6-1 is connected with the cylindrical gear transmission mechanism.
In this embodiment, the NGW type planetary transmission mechanism includes a sun gear 1-1, a plurality of planetary gears 1-2 uniformly distributed along the circumference of the sun gear 1-1 and meshed with the sun gear 1-1, an annular gear 1-3 surrounding the plurality of planetary gears 1-2 and meshed with the planetary gears 1-2, and a planet carrier 1-5 for installing the plurality of planetary gears 1-2, wherein the planetary gears 1-2 are connected with the planet carrier 1-5 through planetary shafts 1-4, and the annular gear 1-3 is arranged on the inner side wall of the main casing 7;
the transmission shaft of the sun gear 1-1 is inserted into the shaft of the servo motor 10 and is in transmission connection.
In the embodiment, the bevel gear mechanism comprises a small bevel gear 2-1 sleeved at the tail end of the planet carrier 1-5 and a large bevel gear 2-2 meshed with the small bevel gear 2-1, and the small bevel gear 2-1 and the large bevel gear 2-2 are in 90-degree orthogonal transmission;
the big bevel gear 2-2 is sleeved at the upper end of the worm 4-1.
In this embodiment, the first manual bevel gear 3-1 includes a manual straight shaft section 3-1-1 and a manual bevel gear portion 3-1-4 integrally formed with the manual straight shaft section 3-1, the manual shaft 3-2 includes an integrally formed connecting shaft end 3-2-1, an intermediate shaft section 3-2-2 and an end shaft section 3-2-3, the connecting shaft end 3-2-1 is in transmission connection with the manual bevel gear portion 3-1-4, and the outer diameters of the intermediate shaft section 3-2-2, the end shaft section 3-2-3 and the connecting shaft end 3-2-1 are sequentially reduced;
the manual bevel gear II 3-3 is sleeved on the top end of the worm 4-1 and meshed with the manual bevel gear part 3-1-4;
the front and back sides of the main shell 7 are provided with a first manual input interface 3-4 and a second manual input interface 3-5 which are symmetrically arranged, the manual straight shaft section 3-1-1 stretches into the first manual input interface 3-4, and the end shaft section 3-2-3 stretches into the second manual input interface 3-5.
In this embodiment, a first internal thread 3-4-1 is disposed on an inner side wall of the first manual input interface 3-4, a first square hole 3-1-2 is disposed in the manual straight shaft section 3-1-1, a connection round hole 3-1-3 is disposed in the manual bevel gear section 3-1-4, the connection round hole 3-1-3 extends into the manual straight shaft section 3-1 and is communicated with the first square hole 3-1-2, a cross section of the connection round hole 3-1-3 is larger than a cross section of the first square hole 3-1-2, and the connection shaft end 3-2-1 is inserted into the connection round hole 3-1-3 and is in transmission connection with the manual bevel gear section 3-1-4 through a cylindrical pin;
the inner side wall of the second manual input interface 3-5 is provided with a second internal thread 3-5-1, and a second square hole 3-2-4 is arranged in the end shaft section 3-2-3;
the manual straight shaft section 3-1-1 and the end shaft section 3-2-3 are respectively and rotatably arranged in the first manual input interface 3-4 and the second manual input interface 3-5 through needle roller bearings on the punching outer ring.
In this embodiment, the cylindrical gear transmission mechanism includes a first gear shaft 5-1 for installing the worm gear 4-2, a first gear 5-2 disposed at the other end of the first gear shaft 5-1, a transition double gear 5-3 meshed with both the first gear shaft 5-1 and the first gear 5-2, and a second gear shaft 5-4 and a second gear 5-5 meshed with the transition double gear 5-3, two transition gears are disposed at two ends of the transition double gear 5-3, one of the transition gears is meshed with the first gear of the first gear shaft 5-1 and the second gear of the second gear 5-4, and the other transition gear is meshed with the first gear 5-2 and the second gear 5-5;
the gear shaft I5-1 and the gear I5-2 are coaxially arranged at two sides of the worm wheel 4-2, and have the same tooth shape and are aligned; the second gear 5-5 is arranged at the other end of the second gear shaft 5-4, and the second gear shaft 5-4 and the second gear 5-5 are coaxially arranged and have the same tooth shape and are aligned.
In the embodiment, a right bevel gear of the right bevel gear output shaft 6-2 and a left bevel gear of the left bevel gear output shaft 6-3 are meshed with a third bevel gear 6-1, the third bevel gear 6-1 is sleeved on a second gear shaft 5-4 and is inserted into the second gear shaft 5-5, and the second gear shaft 5-4, the third bevel gear 6-1 and the second gear 5-5 are coaxially arranged;
the right output shaft 6-2 of the bevel gear and the left output shaft 6-3 of the bevel gear are provided with splines at the output ends extending out of the main shell 7.
In this embodiment, the worm 4-1 is disposed in a right-biased position inside the main housing 7 in a vertical direction, the worm wheel 4-2 is disposed in a left-biased position inside the main housing 7, the worm 4-1 is a single-head worm, and the number of teeth of the worm wheel 4-2 is 33 teeth;
the lead angle of the worm 4-1 is smaller than the equivalent friction angle between the teeth of the meshing worm wheel 4-2.
In this embodiment, a left inner shaft sleeve 6-3-1 is disposed in the left side of the main housing 7, the bevel gear left output shaft 6-3 is rotatably mounted in the left inner shaft sleeve 6-3-1 through a left bearing, an outer shaft sleeve 6-3-2 is disposed outside the main housing 7, and the bevel gear left output shaft 6-3 passes through the main housing 7 and the outer shaft sleeve 6-3-2.
In this embodiment, a right inner shaft sleeve 6-2-1 and an outer cover plate 6-2-2 matched with the right inner shaft sleeve 6-2-1 are arranged in the right side of the main casing 7, the right output shaft 6-2 of the bevel gear is rotatably installed in the right inner shaft sleeve 6-2-1 through a right bearing, the outer side wall of the right side wall of the main casing 7 is flush with the outer side of the outer cover plate 6-2-2, and the right output shaft 6-2 of the bevel gear penetrates through the main casing 7 and the outer cover plate 6-2-2.
In this embodiment, in actual use, the length of the bevel gear left output shaft 6-3 is longer than the length of the bevel gear right output shaft 6-2.
In the embodiment, a manual bevel gear II 3-3 is arranged at the upper end of the worm 4-1 through a pressing plate 3-3-2 and a countersunk head screw 3-3-1.
In the embodiment, the large bevel gear 2-2 is in transmission connection with the worm 4-1 through two symmetrical double bonds, so that the transmission torque is increased.
In this embodiment, the worm 4-1 is rotatably installed in the main housing 7 through a lower bearing and an upper bearing, the worm 4-1 is sleeved with a supporting ring 2-2-1, the lower end of the supporting ring 2-2-1 is pressed on the inner ring of the upper bearing of the worm 4-1, and the upper end of the supporting ring 2-2-1 supports the lower surface of the large bevel gear 2-2 for adjusting the meshing gap of the secondary bevel gear and enabling the large bevel gear 2-2, the worm 4-1 and the inner rings of the upper and lower bearings to rotate together.
In this embodiment, the main housing 7 is further provided with a hole retainer ring 2-2-2, so as to realize the limit of the outer ring of the upper bearing.
In the embodiment, the gear of the first gear shaft 5-1, the gear of the first gear 5-2, the transition gear, the gear of the second gear shaft 5-4 and the gear of the second gear 5-5 are all rotatably arranged in the main shell 7 through bearings.
In this embodiment, in actual use, the front side of the main housing 7 is provided with a front mounting hole for mounting the components such as the worm wheel 4-2, the transition double gear 5-3, the gear two 5-5, and the like, and a front cover plate is detachably disposed at the front mounting hole.
In this embodiment, an upper mounting hole for mounting the worm 4-1 is provided at the top of the main housing 7, and a circular cover plate 7-1 is provided at the upper mounting hole.
In this embodiment, the central shaft of the sun gear 1-1 is in interference fit with the shaft hole of the output shaft of the servo motor 10, and a GB/T879.1 heavy elastic cylindrical pin is provided, so that the sun gear 1-1 is connected with the motor shaft safely and reliably.
In this embodiment, the number of the planetary gears 1-2 is three.
In this embodiment, the planetary shaft 1-4 is cantilever-mounted on the planet carrier 1-5, the three planetary gears 1-2 are meshed with the sun gear 1-1 and simultaneously meshed with the inner gear ring 1-3, the inner gear ring 1-3 is fixed on the inner side wall of the hole of the main casing 7, and when the servo motor 10 rotationally drives the sun gear 1-1 to rotate, the planetary gears 1-2 meshed with the sun gear 1-1 rotationally drive the planet carrier 1-5 to rotationally output.
Two bearings are used between the planetary gear 1-2 and the planetary shaft 1-4, bearings are also arranged between the planetary carrier 1-5 and the main shell 7, and the planetary gear 1-2 and the planetary carrier 1-5 are flexible to rotate and free of clamping stagnation.
In this embodiment, the rotation direction of the carrier 1-5 is the same as the rotation direction of the sun gear 1-1.
In this embodiment, in actual use, the reduction ratio of the NGW-type planetary transmission mechanism is 4.9412, the reduction ratio of the bevel gear mechanism is 2.375, the reduction ratio of the worm gear mechanism is 33, and the reduction ratios of the cylindrical gear transmission mechanism and the bevel gear transmission reverse double-output shaft mechanism are both 1.
In this embodiment, the first gear shaft 5-1 and the first gear 5-2 are provided to transmit the output torque of the worm wheel 4-2 to the second gear shaft 5-4 and the second gear 5-5 through the transition double gears 5-3.
In the embodiment, the thickness of the main shell 7 is only 51.5mm because of the limitation of the external dimension of the main shell 7, the worm wheel 4-2 is engaged with the worm 4-1 in the middle of the main shell 7, and the cylindrical gear transmission mechanisms all adopt double-gear transmission, so that the transmission torque can be improved to meet the requirement of the final output torque; in addition, the arrangement of gears on both sides is more beneficial to improving the forward and reverse rotation transmission precision.
In the embodiment, the gear shaft I5-1 and the gear I5-2 have the same tooth shape and are aligned, the gear shaft II 5-4 and the gear II 5-5 have the same tooth shape and are aligned, and the gear shafts are cylindrical gears, so that the tooth shapes of the two cylindrical gears at two ends are aligned, namely, tooth peaks are aligned with tooth peaks, tooth valleys are aligned with tooth valleys, and stress is applied simultaneously when the gear shafts are stressed, thereby improving the forward and backward rotation transmission precision.
In this embodiment, the worm gear mechanism has a self-locking function when the lead angle of the worm 4-1 is smaller than the equivalent friction angle between teeth of the meshing worm wheel 4-2. The friction coefficient between the worm 4-1 and the worm wheel 4-2 is 0.6, the lead angle of the worm 4-1 is 3 degrees 11 '38' and is smaller than the equivalent friction angle of 3 degrees 29 '11', so that the worm wheel and worm transmission mechanism has a self-locking function, reverse self-locking can be realized, namely, only the worm can drive the worm wheel to drive the worm wheel, but the worm wheel cannot drive the worm to drive the worm, and the self-locking function plays a very important role in safety protection, so that the speed reducer is safe and reliable in a locking driving system of an aircraft hanging bullet elevator, and can not fail due to emergency such as power failure.
In the embodiment, when the bevel gear III 6-1 rotates in a certain direction under the drive of the gear II 5-4 and the gear II 5-5 which are coaxially arranged, the bevel gear right output shaft 6-2 and the bevel gear left output shaft 6-3 rotate in opposite directions, so that the use requirement of the opposite double output shafts is met.
In the embodiment, the gear shafts I5-1, the gear I5-2, the transition double gears 5-3, the gear shafts II 5-4 and the gear II 5-5 are arranged to realize double cylindrical gear transmission at two ends, so that the return clearance is small, and the transmission precision is high.
In this embodiment, when in specific use, the axes of the turbine 4-2, the first gear shaft 5-1 and the first gear 5-2, the axis of the transition double gear 5-3, and the axes of the second gear shaft 5-4 and the second gear 5-5 are sequentially lowered and enclosed into a triangle.
In the embodiment, when the device is specifically used, the axle center of the transition double gear 5-3 is arranged close to the bevel gear left output shaft 6-3.
In this embodiment, when in specific use, the servo motor 10, the NGW planetary transmission mechanism and the axis of the bevel pinion 2-1 are located at the same height and at the top of the turbine 4-2.
When the invention is particularly used, the servo motor 10 rotates to drive the bevel pinion 2-1 to rotate through the NGW type planetary transmission mechanism, the bevel pinion 2-1 rotates to drive the worm 4-1 to rotate through the bevel pinion 2-2, and the worm 4-1 rotates to drive the worm wheel 4-2 to rotate; the worm wheel 4-2 rotates to drive the gear shaft I5-1 and the gear I5-2 to rotate, the gear shaft I5-1 and the gear I5-2 rotate to drive the gear shaft II 5-4 and the gear II 5-5 to rotate through the transition gear of the transition double gear 5-3, the gear shaft II 5-4 and the gear II 5-5 rotate to drive the bevel gear III 6-1 to rotate, and the bevel gear III 6-1 rotates, so that the bevel gear right output shaft 6-2 and the bevel gear left output shaft 6-3 rotate in opposite directions, and the use requirement of the opposite double output shafts is met.
In addition, manual operation can be used under the emergency of ground service guarantee outage, a flexible shaft is inserted into the first manual input interface 3-4, a central shaft of the flexible shaft is inserted into the first square hole 3-1-2, the outer side wall of the flexible shaft is in threaded connection with the first internal thread 3-4-1, the manual straight shaft section 3-1-1 and the manual bevel gear part 3-1-4 are operated by the flexible shaft to rotate, and the manual bevel gear part 3-1-4 is rotated to drive the worm 4-1 to rotate through the manual bevel gear II 3-3;
or a flexible shaft is inserted into the second manual input interface 3-5 through the second manual input interface 3-5, a central shaft of the flexible shaft is inserted into the second square hole 3-2-4, the outer side wall of the flexible shaft is in threaded connection with the second internal thread 3-5-1, the manual shaft 3-2 is operated to rotate through the flexible shaft, the manual shaft 3-2 rotates to drive the manual straight shaft section 3-1-1 and the manual bevel gear part 3-1-4 to rotate, the manual bevel gear part 3-1-4 rotates to drive the worm 4-1 to rotate through the manual bevel gear two 3-3, and further the subsequent rotation of the right bevel gear output shaft 6-2 and the left bevel gear output shaft 6-3 in opposite directions is realized.
In conclusion, the invention has the advantages of simple structure, reasonable design, large total reduction ratio, realization of torque increase transmission, only two reducers are needed, small occupied space, effective adaptation to the locking driving mechanism of the aircraft hanging bullet elevator system, and reliable and safe self-locking function.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims (8)

1. The utility model provides a reverse double output shaft multistage speed reducer that possesses self-locking function which characterized in that: the intelligent control device comprises a servo motor (10), and an NGW type planetary transmission mechanism, a bevel gear mechanism, a worm gear mechanism, a cylindrical gear transmission mechanism and a bevel gear transmission reverse double-output-shaft mechanism which are arranged in a main shell (7) and are sequentially connected in a transmission manner, wherein the worm gear mechanism is also connected with a bidirectional manual input mechanism;
the output end of the servo motor (10) is in transmission connection with the NGW type planetary transmission mechanism, the worm gear and worm mechanism comprises a worm (4-1) arranged in a main shell (7) and a worm wheel (4-2) meshed with the worm (4-1), the worm (4-1) is arranged in the vertical direction, the NGW type planetary transmission mechanism is in transmission connection with the bevel gear mechanism, and the bevel gear mechanism and the bidirectional manual input mechanism are in transmission connection with the worm (4-1);
the bidirectional manual input mechanism comprises a first manual bevel gear (3-1), a manual shaft (3-2) and a second manual bevel gear (3-3), wherein the second manual bevel gear (3-3) is sleeved on the top end of the worm (4-1) and meshed with the first manual bevel gear (3-1);
the bevel gear transmission reverse double-output-shaft mechanism comprises a bevel gear three (6-1), a bevel gear right output shaft (6-2) and a bevel gear left output shaft (6-3), and the bevel gear three (6-1) is connected with the cylindrical gear transmission mechanism.
2. The reverse double-output-shaft multistage speed reducer with a self-locking function according to claim 1, wherein: the NGW type planetary transmission mechanism comprises a sun gear (1-1), a plurality of planetary gears (1-2) which are uniformly distributed along the circumferential direction of the sun gear (1-1) and meshed with the sun gear (1-1), an annular gear (1-3) which is arranged outside the plurality of planetary gears (1-2) in a surrounding manner and meshed with the planetary gears (1-2) and a planet carrier (1-5) for installing the plurality of planetary gears (1-2), wherein the planetary gears (1-2) are connected with the planet carrier (1-5) through planet shafts (1-4), and the annular gear (1-3) is arranged on the inner side wall of a main shell (7);
the transmission shaft of the sun gear (1-1) is inserted into the shaft of the servo motor (10) and is in transmission connection.
3. The reverse double-output-shaft multistage speed reducer with a self-locking function according to claim 1, wherein: the bevel gear mechanism comprises a small bevel gear (2-1) sleeved at the tail end of the planet carrier (1-5) and a large bevel gear (2-2) meshed with the small bevel gear (2-1), and the small bevel gear (2-1) and the large bevel gear (2-2) are in 90-degree orthogonal transmission;
the big bevel gear (2-2) is sleeved at the upper end of the worm (4-1).
4. The reverse double-output-shaft multistage speed reducer with a self-locking function according to claim 1, wherein: the manual bevel gear I (3-1) comprises a manual straight shaft section (3-1-1) and a manual bevel gear part (3-1-4) integrally formed with the manual straight shaft section (3-1-1), the manual shaft (3-2) comprises a connecting shaft end (3-2-1), an intermediate shaft section (3-2-2) and an end shaft section (3-2-3) which are integrally formed, the connecting shaft end (3-2-1) is in transmission connection with the manual bevel gear part (3-1-4), and the outer diameters of the intermediate shaft section (3-2-2), the end shaft section (3-2-3) and the connecting shaft end (3-2-1) are sequentially reduced;
the manual bevel gear II (3-3) is sleeved at the top end of the worm (4-1) and meshed with the manual bevel gear part (3-1-4);
a first manual input interface (3-4) and a second manual input interface (3-5) which are symmetrically distributed are arranged on the rear front side surface of the main shell (7), the manual straight shaft section (3-1-1) stretches into the first manual input interface (3-4), and the end shaft section (3-2-3) stretches into the second manual input interface (3-5).
5. The reverse double-output shaft multi-stage speed reducer with a self-locking function according to claim 4, wherein: the manual bevel gear comprises a first manual input interface (3-4), a first internal thread (3-4-1) is arranged on the inner side wall of the first manual input interface, a first square hole (3-1-2) is formed in the manual straight shaft section (3-1-1), a connecting round hole (3-1-3) is formed in the manual bevel gear part (3-1-4), the connecting round hole (3-1-3) extends into the manual straight shaft section (3-1-1) and is communicated with the first square hole (3-1-2), the cross section area of the connecting round hole (3-1-3) is larger than the cross section area of the first square hole (3-1-2), and the connecting shaft end (3-2-1) is inserted into the connecting round hole (3-1-3) and is in transmission connection with the manual bevel gear part (3-1-4) through a cylindrical pin;
the inner side wall of the second manual input interface (3-5) is provided with a second internal thread (3-5-1), and a second square hole (3-2-4) is arranged in the end shaft section (3-2-3);
the manual straight shaft section (3-1-1) and the end shaft section (3-2-3) are rotatably arranged in the first manual input interface (3-4) and the second manual input interface (3-5) through needle bearings on punching outer rings.
6. The reverse double-output-shaft multistage speed reducer with a self-locking function according to claim 1, wherein: the cylindrical gear transmission mechanism comprises a first gear shaft (5-1) for installing a worm gear (4-2), a first gear (5-2) arranged at the other end of the first gear shaft (5-1), a transition double gear (5-3) meshed with the first gear shaft (5-1) and the first gear (5-2), and a second gear shaft (5-4) meshed with the transition double gear (5-3), wherein two transition gears are arranged at two ends of the transition double gear (5-3), one transition gear is meshed with the first gear of the first gear shaft (5-1) and the second gear of the second gear shaft (5-4), and the other transition gear is meshed with the first gear (5-2) and the second gear (5-5);
the gear shaft I (5-1) and the gear I (5-2) are coaxially arranged at two sides of the worm wheel (4-2) and have the same tooth shape and are aligned; the gear II (5-5) is arranged at the other end of the gear shaft II (5-4), and the gear shaft II (5-4) and the gear II (5-5) are coaxially arranged and have the same tooth shape and are aligned.
7. The reverse double-output shaft multi-stage speed reducer with a self-locking function according to claim 6, wherein: the right bevel gear of the right bevel gear output shaft (6-2) and the left bevel gear of the left bevel gear output shaft (6-3) are meshed with a bevel gear III (6-1), the bevel gear III (6-1) is sleeved on a gear shaft II (5-4) and is spliced with the gear II (5-5), and the gear shaft II (5-4), the bevel gear III (6-1) and the gear II (5-5) are coaxially arranged;
the output ends of the right bevel gear output shaft (6-2) and the left bevel gear output shaft (6-3) extending out of the main shell (7) are respectively provided with a spline.
8. The reverse double-output-shaft multistage speed reducer with a self-locking function according to claim 1, wherein: the worm (4-1) is arranged at a right-leaning position in the main shell (7) in a vertical direction, the worm wheel (4-2) is arranged at a left-leaning position in the main shell (7), the worm (4-1) is a single-head worm, and the number of teeth of the worm wheel (4-2) is 33;
the lead angle of the worm (4-1) is smaller than the equivalent friction angle between the teeth of the meshing worm wheel (4-2).
CN202310320110.5A 2023-03-28 2023-03-28 Reverse double-output-shaft multistage speed reducer with self-locking function Pending CN116085428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310320110.5A CN116085428A (en) 2023-03-28 2023-03-28 Reverse double-output-shaft multistage speed reducer with self-locking function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310320110.5A CN116085428A (en) 2023-03-28 2023-03-28 Reverse double-output-shaft multistage speed reducer with self-locking function

Publications (1)

Publication Number Publication Date
CN116085428A true CN116085428A (en) 2023-05-09

Family

ID=86206728

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310320110.5A Pending CN116085428A (en) 2023-03-28 2023-03-28 Reverse double-output-shaft multistage speed reducer with self-locking function

Country Status (1)

Country Link
CN (1) CN116085428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117588527A (en) * 2024-01-16 2024-02-23 东北大学 Speed reducer with double input modes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117588527A (en) * 2024-01-16 2024-02-23 东北大学 Speed reducer with double input modes
CN117588527B (en) * 2024-01-16 2024-03-19 东北大学 Speed reducer with double input modes

Similar Documents

Publication Publication Date Title
WO2017032222A1 (en) Differential planetary reducer for crane
CN116085428A (en) Reverse double-output-shaft multistage speed reducer with self-locking function
CN101982676B (en) Variable-speed drive device
CN216269501U (en) Double-motor planetary roller screw type electric power steering gear for heavy-load commercial vehicle
CN110925364A (en) Planetary reducer for coaxial counter-rotating helicopter
CN209441178U (en) A kind of Electric Motor Wheel assembly apparatus and automobile based on embedded deceleration mechanism
CN107327556A (en) A kind of two grades of planetary gears gearbox drive axle system and method
CN110030356A (en) A kind of third gear electric car automatic speed transmission based on bevel gear
CN206129994U (en) Big moment of torsion speed reducer of syntropy initiative multiple input
CN107575539A (en) A kind of Novel end face transmission device with double reduction function
CN217559144U (en) Actuator transmission device with self-locking function
CN207195580U (en) A kind of hub reduction axle assembly
CN216343805U (en) Differential reduction box and shoulder-elbow integrated power-assisted mechanism thereof
CN106321745A (en) Four-speed transmission for pure-electric vehicle
CN206972857U (en) A kind of two grades of planetary gears gearboxes driving bridge system
CN214900524U (en) Coaxial line type driving motor assembly
CN109130837A (en) A kind of electronic wheel apparatus of low-speed big and automobile
CN211106917U (en) Double-input electric driving system
CN211778773U (en) Planetary speed reducer with small tooth difference
CN201170297Y (en) Automobile intelligent infinitely variable speed transmission device
CN101936366A (en) Combination double-oblique tooth planetary transmission mechanism
CN112960579A (en) Aircraft hangs and plays and uses lifting machine
CN206802205U (en) A kind of Two-stage Planet Gear Reducer
CN202326939U (en) Coaxial cylindrical-surface-identical multi-stage forward/reverse rotation gearbox
CN217422052U (en) Double-motor direct-drive reduction gearbox with planetary reduction mechanism

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