CN202152066U - Differential steering structure - Google Patents
Differential steering structure Download PDFInfo
- Publication number
- CN202152066U CN202152066U CN2011202556216U CN201120255621U CN202152066U CN 202152066 U CN202152066 U CN 202152066U CN 2011202556216 U CN2011202556216 U CN 2011202556216U CN 201120255621 U CN201120255621 U CN 201120255621U CN 202152066 U CN202152066 U CN 202152066U
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- Prior art keywords
- gear
- steering
- steering structure
- shaft
- differential steering
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Abstract
The embodiment of the utility model discloses a differential steering structure. The differential steering structure comprises a central transmission shaft (103), a gear ring (104), a planet gear (105), a planet carrier (106), a sun gear (114), an output shaft (109), a motor output gear (110), a steering gear (111), an idle gear (112) and a gear shaft (113), wherein the gear ring (104), the planet gear (105), the planet carrier (106) and the sun gear (114) form two groups of planetary lines; and the two rows of planetary lines are respectively arranged on two sides of the central transmission shaft (103). Through the adoption of the differential steering structure, the efficiency of an engine can be fully played during the steering process of a heavy construction machinery; and the steering radius of the heavy construction machinery can be reduced, so as to improve operation adaptive capacity.
Description
Technical field
The utility model relates to mechanical field, relates in particular to a kind of differential steering structure.
Background technology
Heavy engineerings such as bulldozer machinery often need turn to adapt to different operations in the course of the work.
At present domestic heavy engineering machinery (for example bulldozer) generally adopts the steering structure of steering clutch formula, and this steering structure relies on the friction force of steering clutch to make the bulldozer single shoe brake, and opposite side still moves, thereby realizes handling maneuver.
But, since bulldozer what turn to dependence is the single shoe brake that friction force causes, so bulldozer can not rotate, otherwise will bring great wearing and tearing to steering clutch and driving engine under loading condition;
Secondly, bigger when turning to by internal loss that friction force brought, make that the effect of driving engine can not be fully played;
Once more, single shoe brake when turning to owing to bulldozer has only a lateral movement to turn to, so Turning radius is bigger, thereby has reduced the operation adaptive capacity.
The utility model content
The utility model embodiment provides a kind of differential steering structure, can make the effect of driving engine in the steering procedure of heavy engineering machinery, be not fully exerted, and can reduce the Turning radius of heavy engineering machinery, thereby improve the operation adaptive capacity.
The differential steering structure that the utility model embodiment provides comprises central driving shaft (103), gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114), output shaft (109), motor output gear (110), steering gear (111), idle pulley (112), gear wheel shaft (113); Said gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114) are formed two groups of planet rows; Said two groups of planets row is arranged in the both sides of central driving shaft (103) respectively.
Alternatively, said differential steering structure also comprises:
Hub (107), spline housing (108) in small bevel gear wheel shaft (101), large bevel gear (102), the braking.
Alternatively, said steering gear (11) meshes with sun wheel (14) and idle pulley (12) respectively, divides two-way to reach both sides output shaft (109) power.
Alternatively, onward impulse is imported by change speed gear box, reaches large bevel gear (102) through small bevel gear wheel shaft (101); Said large bevel gear (102) connects with central driving shaft (103); Said central driving shaft (103) is connected with gear ring (104); Gear ring (104) and satellite gear (105) engagement; Satellite gear and pinion carrier (106) are connected as a single entity, and sun wheel (114), satellite gear (105), gear ring (104), pinion carrier (106) are formed planet row.
Alternatively, steering power is imported by steering motor, reaches steering gear (111) through motor output gear (110); Said steering gear (111) meshes with idle pulley (112) and sun wheel (114) respectively.
Can find out that from above technical scheme the utility model embodiment has the following advantages:
Differential steering structure utilization in the utility model makes bulldozer both sides output shafts obtain speed and equal and opposite in direction, a pair of torque in the opposite direction, makes the both sides output shaft produce speed discrepancy, the realization differential steering.This differential steering structure can turn to bulldozer under load, reduced the internal loss of driving engine, has improved service efficiency;
In addition, adopt the theoretical turn radius of this differential steering structure to reduce, thereby improved the operation adaptive capacity with respect to the theoretical turn radius that adopts the steering clutch steering structure.
Description of drawings
Fig. 1 is the utility model differential steering structural representation.
The specific embodiment
The utility model embodiment provides a kind of differential steering structure, can make the effect of driving engine in the steering procedure of heavy engineering machinery, be not fully exerted, and can reduce the Turning radius of heavy engineering machinery, thereby improve the operation adaptive capacity.
Differential steering structure in the present embodiment utilizes steering motor that power is provided; Transmission of power is arrived steering gear; Steering gear passes through the sun wheel that power is passed in the central driving shaft both sides in the firsts and seconds transmission respectively; Be delivered to output shaft through planet row again, utilize the speed difference of both sides output shaft to realize turning to.
Concrete, seeing also Fig. 1, the differential steering structure in the present embodiment comprises:
Central driving shaft (103), gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114), output shaft (109), motor output gear (110), steering gear (111), idle pulley (112), gear wheel shaft (113);
Said gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114) are formed two groups of planet rows;
Said two groups of planets row is arranged in the both sides of central driving shaft (103) respectively.
Differential steering structure in the present embodiment can further include:
Hub (107), spline housing (108) in small bevel gear wheel shaft (101), large bevel gear (102), the braking.
Said steering gear (11) meshes with sun wheel (14) and idle pulley (12) respectively, divides two-way to reach both sides output shaft (109) power.
Onward impulse is imported by change speed gear box, reaches large bevel gear (102) through small bevel gear wheel shaft (101);
Said large bevel gear (102) connects with central driving shaft (103); Said central driving shaft (103) is connected with gear ring (104); Gear ring (104) and satellite gear (105) engagement; Satellite gear and pinion carrier (106) are connected as a single entity, and sun wheel (114), satellite gear (105), gear ring (104), pinion carrier (106) are formed planet row.
Steering power is imported by steering motor, reaches steering gear (111) through motor output gear (110);
Said steering gear (111) meshes with idle pulley (112) and sun wheel (114) respectively.
Describe in the face of the working process of differential steering structure in the present embodiment down:
When bulldozer advances; Power is imported by small bevel gear wheel shaft (101); Hub (107) in large bevel gear (102)-central driving shaft (103)-gear ring (104)-satellite gear (105)-pinion carrier (106)-braking-spline housing (108)-output shaft (109), the both sides output shaft rotates with speed in the same way.
When bulldozer turns to, by the power of steering motor output through the two-way transmission:
Drive path 1: by hub (107) in steering motor output gear (110) input-steering gear (111)-idle pulley (112)-gear wheel shaft (113)-opposite side idle pulley (112)-sun wheel (114)-satellite gear (105)-pinion carrier (106)-braking-spline housing (108)-output shaft (109);
Drive path 2: by hub (107) in steering motor output gear (110) input-steering gear (111)-sun wheel (114)-satellite gear (105)-pinion carrier (106)-braking-spline housing (108)-output shaft (109).
The drive disk assembly to output shaft (109) is identical from sun wheel (114) with 2 for above-mentioned drive path 1, calculates Zi turning to motor output shaft (110) following to the transmitting ratio of sun wheel (114):
The transmitting ratio of drive path 1 is:
The transmitting ratio of drive path 2 is:
Wherein, Z representes the gear number.
By on can find out, the transmitting ratio equal and opposite in direction of drive path 1 and drive path 2, in the opposite direction.After that is to say that steering motor starts; The sun wheel of both sides obtains a pair of speed and equal and opposite in direction respectively, and torque in the opposite direction is after the torque that this torque and change speed gear box transmit is synthetic; The original rotating speed of output shaft of one side is increased; And the original rotating speed of the output shaft of opposite side reduces, and the both sides output shaft produces speed discrepancy, realizes differential steering.
The rotating speed that transmits when change speed gear box is zero, when promptly change speed gear box places Neutral Position, starts steering motor, and at this moment the both sides output shaft obtains a pair of speed and equal and opposite in direction respectively, torque in the opposite direction, and bulldozer has just been realized pivot stud, it is minimum that turn radius reaches.
Differential steering structure utilization in the utility model makes bulldozer both sides output shafts obtain speed and equal and opposite in direction, a pair of torque in the opposite direction, makes the both sides output shaft produce speed discrepancy, the realization differential steering.This differential steering structure can turn to bulldozer under load, reduced the internal loss of driving engine, has improved service efficiency;
In addition, adopt the theoretical turn radius of this differential steering structure to reduce, thereby improved the operation adaptive capacity with respect to the theoretical turn radius that adopts the steering clutch steering structure.
Need to prove that the differential steering structure in the present embodiment can also be applied to other heavy engineering machinery except being applied to the bulldozer, the workflow of this differential steering structure is similar, does not specifically limit here.
More than a kind of differential steering structure that the utility model provided has been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on the specific embodiment and field of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (5)
1. differential steering structure; Comprise central driving shaft (103), gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114), output shaft (109), motor output gear (110), steering gear (111), idle pulley (112), gear wheel shaft (113), it is characterized in that:
Said gear ring (104), satellite gear (105), pinion carrier (106), sun wheel (114) are formed two groups of planet rows;
Said two groups of planets row is arranged in the both sides of central driving shaft (103) respectively.
2. differential steering structure according to claim 1 is characterized in that, said differential steering structure also comprises:
Hub (107), spline housing (108) in small bevel gear wheel shaft (101), large bevel gear (102), the braking.
3. differential steering structure according to claim 1 and 2 is characterized in that,
Said steering gear (11) meshes with sun wheel (14) and idle pulley (12) respectively, divides two-way to reach both sides output shaft (109) power.
4. differential steering structure according to claim 1 and 2 is characterized in that,
Onward impulse is imported by change speed gear box, reaches large bevel gear (102) through small bevel gear wheel shaft (101);
Said large bevel gear (102) connects with central driving shaft (103); Said central driving shaft (103) is connected with gear ring (104); Gear ring (104) and satellite gear (105) engagement; Satellite gear and pinion carrier (106) are connected as a single entity, and sun wheel (114), satellite gear (105), gear ring (104), pinion carrier (106) are formed planet row.
5. differential steering structure according to claim 1 and 2 is characterized in that,
Steering power is imported by steering motor, reaches steering gear (111) through motor output gear (110);
Said steering gear (111) meshes with idle pulley (112) and sun wheel (114) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202556216U CN202152066U (en) | 2011-07-19 | 2011-07-19 | Differential steering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202556216U CN202152066U (en) | 2011-07-19 | 2011-07-19 | Differential steering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152066U true CN202152066U (en) | 2012-02-29 |
Family
ID=45692572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202556216U Expired - Lifetime CN202152066U (en) | 2011-07-19 | 2011-07-19 | Differential steering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152066U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318247A (en) * | 2013-07-10 | 2013-09-25 | 山推工程机械股份有限公司 | Engineering machine and steering device thereof |
| CN103453105A (en) * | 2012-05-31 | 2013-12-18 | 通用汽车环球科技运作有限责任公司 | Differential with integrated torque vectoring |
| CN103723188A (en) * | 2014-01-21 | 2014-04-16 | 山推工程机械股份有限公司 | Control method and control system of differential steering mechanism and engineering machinery employing control system |
| CN104828137A (en) * | 2015-06-04 | 2015-08-12 | 机器时代(北京)科技有限公司 | General chassis steering gear |
| CN105569108A (en) * | 2015-12-15 | 2016-05-11 | 湖南三一路面机械有限公司 | Land leveler transmission system and land leveler |
| CN107120407A (en) * | 2016-02-24 | 2017-09-01 | 丰田自动车株式会社 | Torque vector control device |
| CN111556937A (en) * | 2018-05-28 | 2020-08-18 | 罗灿 | Equidirectional transfer differential driver |
-
2011
- 2011-07-19 CN CN2011202556216U patent/CN202152066U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453105A (en) * | 2012-05-31 | 2013-12-18 | 通用汽车环球科技运作有限责任公司 | Differential with integrated torque vectoring |
| CN103453105B (en) * | 2012-05-31 | 2016-03-02 | 通用汽车环球科技运作有限责任公司 | There is the differential mechanism that integrated torque vector controls |
| CN103318247B (en) * | 2013-07-10 | 2016-05-11 | 山推工程机械股份有限公司 | A kind of engineering machinery and transfer thereof |
| CN103318247A (en) * | 2013-07-10 | 2013-09-25 | 山推工程机械股份有限公司 | Engineering machine and steering device thereof |
| CN103723188A (en) * | 2014-01-21 | 2014-04-16 | 山推工程机械股份有限公司 | Control method and control system of differential steering mechanism and engineering machinery employing control system |
| CN103723188B (en) * | 2014-01-21 | 2016-04-06 | 山推工程机械股份有限公司 | The control method of differential screw and steering device, system and apply the construction machinery and equipment of this system |
| CN104828137B (en) * | 2015-06-04 | 2017-09-12 | 机器时代(北京)科技有限公司 | Universal chassis steering gear |
| CN104828137A (en) * | 2015-06-04 | 2015-08-12 | 机器时代(北京)科技有限公司 | General chassis steering gear |
| CN105569108A (en) * | 2015-12-15 | 2016-05-11 | 湖南三一路面机械有限公司 | Land leveler transmission system and land leveler |
| CN107120407A (en) * | 2016-02-24 | 2017-09-01 | 丰田自动车株式会社 | Torque vector control device |
| CN107120407B (en) * | 2016-02-24 | 2019-08-16 | 丰田自动车株式会社 | Torque vector control device |
| CN111556937A (en) * | 2018-05-28 | 2020-08-18 | 罗灿 | Equidirectional transfer differential driver |
| CN111556937B (en) * | 2018-05-28 | 2022-09-23 | 罗灿 | Equidirectional transfer differential driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120229 |
|
| CX01 | Expiry of patent term |