CN114889716A - Heavy tracked vehicle turns to variable load torsion axle linkage - Google Patents
Heavy tracked vehicle turns to variable load torsion axle linkage Download PDFInfo
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- CN114889716A CN114889716A CN202210648675.1A CN202210648675A CN114889716A CN 114889716 A CN114889716 A CN 114889716A CN 202210648675 A CN202210648675 A CN 202210648675A CN 114889716 A CN114889716 A CN 114889716A
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- Prior art keywords
- tracked vehicle
- heavy
- torsion shaft
- heavy tracked
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/104—Suspension devices for wheels, rollers, bogies or frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
- B62D11/003—Electric or electronic control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/14—Arrangement, location, or adaptation of rollers
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Power Steering Mechanism (AREA)
Abstract
The heavy tracked vehicle steering variable-load torsion shaft suspension device comprises a torsion shaft, wherein the torsion shaft is rotatably arranged on a chassis of the heavy tracked vehicle through a bearing seat, one end of the torsion shaft is in transmission connection with a power output end of a worm gear reducer, a power input end of the worm gear reducer is in transmission connection with a power output shaft of a servo motor through a harmonic reducer, and the harmonic reducer is arranged on the chassis of the heavy tracked vehicle; the other end of the torsion shaft is hinged with one end of the balance elbow, and the other end of the balance elbow is rotatably sleeved on a central shaft of a loading wheel of the heavy tracked vehicle. The heavy tracked vehicle steering variable-load torsion shaft suspension device can effectively reduce the steering resistance and power loss of the heavy tracked vehicle, avoid engine flameout caused by rapid steering of the heavy tracked vehicle, enable the heavy tracked vehicle to flexibly steer, improve the average movement speed of the heavy tracked vehicle, and fully exert the maneuverability of the heavy high-speed tracked vehicle.
Description
Technical Field
The invention relates to a heavy tracked vehicle steering variable-load torsion shaft suspension device.
Background
Steering performance is the ability of a heavy, high-speed tracked vehicle to change direction of motion, and is related to both vehicle structure, power, steering, and ground conditions. The flexible steering of the vehicle is an important link for improving the average moving speed of the vehicle and fully playing the mobility of the heavy high-speed tracked vehicle. The existing heavy high-speed tracked vehicle has the defects of large vehicle power loss, low steering efficiency and difficult steering when the steering resistance of the ground is overcome in the steering process due to the structural characteristics of the suspension device, and the engine can be flamed in serious cases.
Disclosure of Invention
The invention aims to provide a heavy tracked vehicle steering variable-load torsion shaft suspension device which can effectively reduce the steering resistance and power loss of a heavy tracked vehicle, avoid engine flameout caused by quick steering of the heavy tracked vehicle, enable the heavy tracked vehicle to flexibly steer, improve the average movement speed of the heavy tracked vehicle and fully exert the maneuverability of the heavy high-speed tracked vehicle.
The invention relates to a heavy tracked vehicle steering variable-load torsion shaft suspension device, which comprises a torsion shaft, wherein the torsion shaft is arranged along the left and right horizontal directions, the torsion shaft is rotatably arranged on a chassis of the heavy tracked vehicle through a bearing seat, one end of the torsion shaft is in transmission connection with a power output end of a worm gear reducer, a power input end of the worm gear reducer is in transmission connection with a power output shaft of a servo motor through a harmonic reducer, and the harmonic reducer is arranged on the chassis of the heavy tracked vehicle;
the other end of the torsion shaft is hinged with one end of the balance elbow, the other end of the balance elbow is rotatably sleeved on a central shaft of a bogie wheel of the heavy tracked vehicle, and when the servo motor drives the torsion shaft to rotate through the harmonic reducer and the worm and gear reducer, the torsion shaft can enable the central shaft of the bogie wheel to do swinging motion of overall height increasing or overall height reducing.
Preferably, the torsion shaft has a circular cross-section.
Preferably, the torsion shaft is made of spring steel, and the balance elbow is made of steel.
Preferably, the torsion shaft is located obliquely above the front side of the center shaft.
When the heavy tracked vehicle steering variable-load torsion shaft suspension device is used, when the heavy tracked vehicle steers, the steering control device sends an electric signal to control the servo motor to work, the servo motor transmits power to the four harmonic reducers, the four harmonic reducers drive the corresponding worm gear reducers to rotate, the four worm gear reducers drive the corresponding torsion shafts to rotate in opposite directions of the load moments of the four load wheels, and the load of the third and fourth load wheels on the left side of the heavy tracked vehicle and the load of the third and fourth load wheels on the right side of the heavy tracked vehicle are increased by changing the height of the central shafts of the third and fourth load wheels on the left side of the heavy tracked vehicle and the height of the central shafts of the third and fourth load wheels on the right side of the heavy tracked vehicle. When a heavy tracked vehicle is steered under such load distribution conditions, the steering resistance will also exhibit a distribution with a large center and small ends. The steering resistance of the front half section and the rear half section of the crawler belt grounding section is equal to the steering resistance of the crawler belt grounding surface when the normal load is uniformly distributed, but when the steering resistance is distributed with a large middle part and small two ends, the acting point of the resultant force of the front half section and the rear half section of the crawler belt grounding section is closer to the center of the vehicle, namely the length of the steering resistance moment arm is smaller than that of the steering resistance moment arm when the normal load of the crawler belt grounding section is uniformly distributed, so that the steering resistance moment is reduced, and the steering is easier; when the heavy tracked vehicle is turned to be stopped, the servo motor is rotated in the opposite direction by the electric signal sent by the turning device, the third and fourth bogie wheels on the left side of the heavy tracked vehicle and the third and fourth bogie wheels on the right side of the heavy tracked vehicle are returned to the initial positions before turning, the normal load of the ground section of the track to the ground is still uniformly distributed, and the vehicle keeps a straight running state. Therefore, the torsion shaft suspension device with the variable steering load of the heavy tracked vehicle has the characteristics that the steering resistance and the power loss of the heavy tracked vehicle can be effectively reduced, the engine flameout caused by the rapid steering of the heavy tracked vehicle is avoided, the heavy tracked vehicle can flexibly steer, the average movement speed of the heavy tracked vehicle is improved, and the mobility performance of the heavy high-speed tracked vehicle is fully exerted.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a heavy tracked vehicle steering variable load torsion axle suspension of the present invention in use;
fig. 2 is a top view of fig. 1.
Detailed Description
The distribution characteristics of the existing heavy high-speed tracked vehicle to the ground normal load are as follows: the suspension device for bearing vehicle load adopts torsion shaft suspension device, one end of torsion shaft is fixed on the vehicle body, and its another end is connected with balance elbow on which the loading wheel is mounted, and the loading wheel can transfer the gravity of vehicle to ground surface by means of crawler belt, and can form normal load to ground surface. Thus, the steering resistive torque is determined as long as the ground properties are determined.
The steering performance of heavy tracked vehicles depends to a large extent on the vehicle steering drag torque, the magnitude of which is determined primarily by the normal load distribution on the ground-engaging section of the track. Because the different normal distributions determine the lateral resistance distribution of the track segment during steering, there will be different steering moments.
The existing high-speed heavy tracked vehicle has the advantages that in the steering process, the normal load of the vehicle to the ground is unchanged, so that the transverse resistance is unchanged, and if the steering resistance moment is to be reduced, the moment arm of the steering resistance can be reduced by changing the normal load distribution form of the vehicle to the ground, so that the steering resistance moment is reduced.
As shown in fig. 1 and 2, the heavy tracked vehicle steering variable load torsion shaft suspension device of the invention comprises a torsion shaft 2, wherein the torsion shaft 2 is arranged along the left-right horizontal direction, the torsion shaft 2 is rotatably arranged on a chassis 5 of the heavy tracked vehicle through a bearing seat, one end of the torsion shaft 2 is in transmission connection with a power output end of a worm gear reducer 4, a power input end of the worm gear reducer 4 is in transmission connection with a power output shaft of a servo motor 7 through a harmonic reducer 6, and the harmonic reducer 6 is arranged on the chassis 5 of the heavy tracked vehicle;
the other end of the torsion shaft 2 is hinged with one end of a balance elbow 8, the other end of the balance elbow 8 is rotatably sleeved on a central shaft 9 of a bogie wheel 1 of the heavy tracked vehicle, and when a servo motor 7 drives the torsion shaft 2 to rotate through a harmonic reducer 6 and a worm and gear reducer 4, the torsion shaft 2 can enable the central shaft 9 of the bogie wheel 1 to do swinging motion of overall height increasing or overall height reducing through the balance elbow 8.
As a further improvement of the present invention, the torsion shaft 2 has a circular cross section.
As a further improvement of the present invention, the torsion shaft 2 is made of spring steel, and the balance elbow 8 is made of steel.
As a further improvement of the present invention, the torsion shaft 2 is located obliquely above the front side of the center shaft 9.
In order to change the normal load distribution of the heavy tracked vehicle to the ground when the vehicle turns, the invention designs a heavy tracked vehicle turning variable load torsion shaft suspension device, which comprises a servo motor 7, a harmonic reducer 6 and a worm gear reducer 4, and the worm gear reducer 4 is fixed on a vehicle body, as shown in figures 1 and 2. For a heavy tracked vehicle, four heavy tracked vehicle steering variable load torsion shaft suspension devices of the invention need to be installed, and the four heavy tracked vehicle steering variable load torsion shaft suspension devices are respectively installed in the middle of a chassis 5 of the heavy tracked vehicle and are used for changing the height of a central shaft 9 of a third and fourth bogie wheels 1 on the left side of the heavy tracked vehicle and the height of the central shaft 9 of the third and fourth bogie wheels 1 on the right side of the heavy tracked vehicle, and the specific working principle is as follows:
when the heavy tracked vehicle runs in a straight line, the heavy tracked vehicle steering variable-load torsion shaft suspension device does not work. Therefore, when the vehicle moves linearly, the normal load of the track grounding section of the heavy tracked vehicle to the ground is uniformly distributed, and the normal load is the same as the linear running performance of the original vehicle.
When the heavy tracked vehicle turns, the steering control device sends an electric signal to control the servo motor 7 to work, the servo motor 7 transmits power to the four harmonic reducers 6, the four harmonic reducers 6 drive the corresponding worm gear reducers 4 to rotate, the four worm gear reducers 4 drive the corresponding torsion shafts 2 to rotate in the opposite directions of the load moment of the four bogie wheels 1, and the load of the third bogie wheel 1 and the fourth bogie wheel 1 on the left side of the heavy tracked vehicle and the load of the third bogie wheel 1 and the fourth bogie wheel 1 on the right side of the heavy tracked vehicle are increased by changing the height of the central shaft 9 of the third bogie wheel 1 and the height of the central shaft 9 of the fourth bogie wheel 1 on the right side of the heavy tracked vehicle. The heavy tracked vehicle has a certain total load on the ground, so that the load of the heavy wheels close to the front end and the rear end of the heavy tracked vehicle is reduced, the normal load distribution on the ground surface of the track is distributed with a large middle and small two ends, and the steering resistance of the heavy tracked vehicle is distributed with a large middle and small two ends when the heavy tracked vehicle steers under the load distribution condition. The size of the steering resistance of the front half section and the rear half section of the crawler belt grounding section is equal to that of the normal load of the crawler belt grounding surface when the normal load is uniformly distributed, but when the steering resistance is distributed with a large middle part and small two ends, the acting point of the resultant force of the front half section and the rear half section of the crawler belt grounding section is closer to the center of the vehicle, namely the length of the steering resistance moment arm is smaller than that of the steering resistance moment arm when the normal load of the crawler belt grounding section is uniformly distributed, so that the steering resistance moment is reduced, and the steering is easier.
When the heavy tracked vehicle is turned to be stopped, the servo motor 7 is rotated in the opposite direction by an electric signal sent by the turning device, the third and fourth bogie wheels 1 on the left side and the third and fourth bogie wheels 1 on the right side of the heavy tracked vehicle are returned to the initial positions before turning, the normal load of the ground section of the track to the ground is still uniformly distributed, and the vehicle keeps a straight running state. Therefore, the torsion shaft suspension device with the variable steering load of the heavy tracked vehicle has the characteristics that the steering resistance and the power loss of the heavy tracked vehicle can be effectively reduced, the engine flameout caused by the rapid steering of the heavy tracked vehicle is avoided, the heavy tracked vehicle can flexibly steer, the average movement speed of the heavy tracked vehicle is improved, and the mobility performance of the heavy high-speed tracked vehicle is fully exerted.
Claims (4)
1. Heavy tracked vehicle turns to variable load torsion axle linkage, its characterized in that: the torsion shaft (2) is arranged in the left-right horizontal direction, the torsion shaft (2) is rotatably arranged on a chassis (5) of the heavy tracked vehicle through a bearing seat, one end of the torsion shaft (2) is in transmission connection with a power output end of a worm and gear reducer (4), a power input end of the worm and gear reducer (4) is in transmission connection with a power output shaft of a servo motor (7) through a harmonic reducer (6), and the harmonic reducer (6) is arranged on the chassis (5) of the heavy tracked vehicle;
the other end of torsion shaft (2) is articulated with the one end of balance elbow (8) and links to each other, and the other end of balance elbow (8) rotationally the suit is on heavy tracked vehicle's bogie wheel (1) center pin (9), when servo motor (7) rotated through harmonic reducer (6) and worm gear reduction gear (4) drive torsion shaft (2), and torsion shaft (2) accessible balance elbow (8) let the center pin (9) of bogie wheel (1) do the swing motion of whole rising height or whole reduction in height.
2. The heavy tracked vehicle steered variable load torsion axle suspension of claim 1, wherein: the cross section of the torsion shaft (2) is circular.
3. The heavy tracked vehicle steered variable load torsion axle suspension of claim 2, wherein: the torsion shaft (2) is made of spring steel, and the balance elbow (8) is made of steel.
4. A heavy tracked vehicle steering variable load torsion axle suspension according to claim 1 or 2 or 3, wherein: the torsion shaft (2) is positioned obliquely above the front side of the central shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210648675.1A CN114889716A (en) | 2022-06-09 | 2022-06-09 | Heavy tracked vehicle turns to variable load torsion axle linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210648675.1A CN114889716A (en) | 2022-06-09 | 2022-06-09 | Heavy tracked vehicle turns to variable load torsion axle linkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114889716A true CN114889716A (en) | 2022-08-12 |
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ID=82728999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210648675.1A Pending CN114889716A (en) | 2022-06-09 | 2022-06-09 | Heavy tracked vehicle turns to variable load torsion axle linkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114889716A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08192777A (en) * | 1995-01-18 | 1996-07-30 | Kubota Corp | Crawler traveling device |
| CN200985052Y (en) * | 2006-11-30 | 2007-12-05 | 湖南江麓机械集团有限公司 | Dynamic synchronous crawler belt walking device for desert planting machine |
| CN103935412A (en) * | 2014-04-29 | 2014-07-23 | 中国人民解放军63908部队 | Modularized rubber crawler wheel |
| CN104354777A (en) * | 2014-11-06 | 2015-02-18 | 中国人民解放军国防科学技术大学 | Rocker arm type four-bar linkage suspension system for crawler vehicle |
-
2022
- 2022-06-09 CN CN202210648675.1A patent/CN114889716A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08192777A (en) * | 1995-01-18 | 1996-07-30 | Kubota Corp | Crawler traveling device |
| CN200985052Y (en) * | 2006-11-30 | 2007-12-05 | 湖南江麓机械集团有限公司 | Dynamic synchronous crawler belt walking device for desert planting machine |
| CN103935412A (en) * | 2014-04-29 | 2014-07-23 | 中国人民解放军63908部队 | Modularized rubber crawler wheel |
| CN104354777A (en) * | 2014-11-06 | 2015-02-18 | 中国人民解放军国防科学技术大学 | Rocker arm type four-bar linkage suspension system for crawler vehicle |
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