CN101544186A - Separable bevel gear differential balance mechanism - Google Patents
Separable bevel gear differential balance mechanism Download PDFInfo
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- CN101544186A CN101544186A CN200910071956A CN200910071956A CN101544186A CN 101544186 A CN101544186 A CN 101544186A CN 200910071956 A CN200910071956 A CN 200910071956A CN 200910071956 A CN200910071956 A CN 200910071956A CN 101544186 A CN101544186 A CN 101544186A
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- bevel gear
- differential
- separable
- planet
- balance mechanism
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Abstract
The invention relates to a separable bevel gear differential balance mechanism, and solves the problems that the prior centralized bevel gear differential device occupies effective loading space inside a vehicle body and has poor rigidity and a separable straight gear differential mechanism has poor symmetry and the stress for a slender shaft is poor. Planet carriers of two differential units are symmetrically and fixedly arranged at two sides of the vehicle body, two input shafts are on the same axis and rotationally connected into one end of the planet carrier, a bevel gear is fixedly arranged on the input shaft, a planet bevel gear is rotationally connected into the other end of the planet carrier, the bevel gear is meshed with the planet bevel gear, and two ends of a connecting rod passing through the planet carriers of the two differential units respectively are hinged with the corresponding planet bevel gear. The separable bevel gear differential balance mechanism reduces the occupation of the inner space of the vehicle body, releases definite effective loading space, improves the rigidity of a half shaft, improves the stress condition of the slender shaft, and improves the symmetry of a probe vehicle.
Description
Technical field
The present invention relates to a kind of bevel gear differential balance mechanism.
Background technology
When probe vehicles was advanced on rugged celestial body surface, for the variation of adaptation to the ground, rocking arm was constantly swung, thereby car body is produced disturbance.In order to reduce the influence that both sides rocking arm swing changes the car body attitude, guarantee the stationarity of car body in the probe vehicles driving process, for scientific instrument provide stable workplatform, often adopt the mode of 2 suspentions to connect main car body and both sides suspension, and come the pivot angle of average both sides rocking arm by differential balance mechanism.Publication number is CN 101033008A, the application for a patent for invention that open day is on September 12nd, 2007 discloses a kind of " four-wheel or six is taken turns differential torsion rod spring suspension type vehicle-carrying mechanism ", adopted a kind of concentrated symmetrical expression spur bevel gear wheel differential attachment in the described mechanism, this differential attachment is the reverse application of vehicle planetary bevel differential, be that both sides suspension pivot angle is dual input, the pitch angle of car body is as single output, it can realize the linear averaging to the car body pitch angle, but this differential attachment is installed in the car body middle part, influence the layout of instrument, and take certain payload space, and two semiaxis are slender axles, and rigidity is poor.Publication number is CN 101307823A, open day be that the application for a patent for invention on November 19th, 2008 discloses a kind of " separating speed differential gear for detection vehicle ", two differential units of this diff are asymmetric, influence the symmetry of probe vehicles, and the axis that connects the both sides differential unit is longer, easily produce torsion and curved power, stressing conditions is poor.
Summary of the invention
The objective of the invention is in order to solve the problem that occupies car body in-to-in payload space and rigidity difference that existing centralized bevel gear differential exists, and the symmetry difference of straight gear separating speed differential gear existence and the problem of slender axles stressing conditions difference, and then a kind of separable bevel gear differential balance mechanism is proposed.
The present invention addresses the above problem the technical scheme of taking to be: the present invention is made up of two differential units, first rocking arm, second rocking arm, connecting rod and car body; Each differential unit is made up of finishing bevel gear cuter, input shaft, bevel planet gear and pinion carrier; The pinion carrier symmetry of described two differential units is packed in the both sides of car body, two input shafts are on same axis, described first rocking arm and second rocking arm are affixed with an end of two input shafts respectively, the other end of described input shaft is rotatably connected in the end of pinion carrier, described finishing bevel gear cuter is packed on the input shaft, described bevel planet gear is rotatably connected in the other end of pinion carrier, described finishing bevel gear cuter and bevel planet gear engagement, the two ends of described connecting rod are passed the pinion carrier of two differential units respectively with bevel planet gear is hinged accordingly.
The present invention has following beneficial effect: two differential units of the present invention are installed in the both sides of car body, thereby reduce taking to the car body inner space, discharge certain payload space, and shortened the length of two input semiaxis, improved the rigidity of semiaxis; The present invention adopts connecting rod to connect two bevel planet gears, has formed positive parallelogram linkage, is used for transmitting the motion of two groups of unit, has improved the stressing conditions of slender axles; Both sides finishing bevel gear cuter block construction is identical, has improved the symmetry of probe vehicles; The shape of connecting rod of the present invention is unrestricted, and is easy for installation, and the present invention has simultaneously also reduced the car body barycenter effectively, has improved the stability of probe vehicles.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present invention, and Fig. 2 is the annexation scheme drawing of two bevel planet gears and connecting rod, and Fig. 3 is the axonometric drawing of Fig. 2.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 and Fig. 2 present embodiment is described, the separable bevel gear differential balance mechanism of present embodiment is made up of two differential units 10, first rocking arm 1, second rocking arm 2, connecting rod 3 and car body 20; Each differential unit 10 is made up of finishing bevel gear cuter 11, input shaft 12, bevel planet gear 13 and pinion carrier 14; Pinion carrier 14 symmetries of described two differential units 10 are packed in the both sides of car body 20, two input shafts 12 are on same axis, described first rocking arm 1 and second rocking arm 2 are affixed with an end of two input shafts 12 respectively, the other end of described input shaft 12 is rotatably connected in the end of pinion carrier 14, described finishing bevel gear cuter 11 is packed on the input shaft 12, described bevel planet gear 13 is rotatably connected in the other end of pinion carrier 14, described finishing bevel gear cuter 11 and bevel planet gear 13 engagements, the two ends of described connecting rod 3 pass the pinion carrier 14 of two differential units 10 respectively with bevel planet gear 13 is hinged accordingly.
The specific embodiment two: in conjunction with Fig. 2 and Fig. 3 present embodiment is described, the common vertical line 13-2 of the connecting rod 3 of present embodiment and the axis 13-1 of two bevel planet gears 13 be arranged in parallel.So be provided with, when the probe vehicles rocking arm was normally swung, the situation of crank and connecting rod conllinear can not appear in parallelogram, can avoid the uncertainty of moving, and guaranteed the normal operation of differential balance mechanism.Other composition is identical with the specific embodiment one with annexation.
Principle of work:
As Fig. 1～shown in Figure 3, two differential unit 10 of the present invention, car body 20 and the connecting rod 3 common planetary wheel differential gear trains of forming a two-freedom.First suspension 1 and second suspension 2 are imported as two differential unit 10 respectively because of the pivot angle that adaptation to the ground produces; Pinion carrier 14 is fixed together with car body 20, and the pitch angle that pinion carrier 14 and car body 20 are produced with both sides input shaft 12 place axis is as output.Two bevel planet gears 13 have been formed a parallel-crank mechanism with connecting rod 3, make the rotating speed of two bevel planet gears 13 equate all the time, therefore the transmitting ratio between two input shafts 12 is-1, the pitch angle of final car body 20 be first suspension 1 and second suspension 2 pivot angle and half, thereby reduced the variation of car body pitch attitude, for vehicle-mounted instrument provides stable workplatform.
Claims (2)
1, a kind of separable bevel gear differential balance mechanism, it is made up of two differential units (10), first rocking arm (1), second rocking arm (2), connecting rod (3) and car body (20); It is characterized in that: each differential unit (10) is made up of finishing bevel gear cuter (11), input shaft (12), bevel planet gear (13) and pinion carrier (14); Pinion carrier (14) symmetry of described two differential units (10) is packed in the both sides of car body (20), two input shafts (12) are on same axis, described first rocking arm (1) and second rocking arm (2) are affixed with an end of two input shafts (12) respectively, the other end of described input shaft (12) is rotatably connected in the end of pinion carrier (14), described finishing bevel gear cuter (11) is packed on the input shaft (12), described bevel planet gear (13) is rotatably connected in the other end of pinion carrier (14), described finishing bevel gear cuter (11) and bevel planet gear (13) engagement, the two ends of described connecting rod (3) pass the pinion carrier (14) of two differential units (10) respectively with bevel planet gear (13) is hinged accordingly.
2, according to the described separable bevel gear differential balance mechanism of claim 1, it is characterized in that: described connecting rod (3) be arranged in parallel with the common vertical line (13-2) of the axis (13-1) of two bevel planet gears (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910071956A CN101544186A (en) | 2009-05-06 | 2009-05-06 | Separable bevel gear differential balance mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910071956A CN101544186A (en) | 2009-05-06 | 2009-05-06 | Separable bevel gear differential balance mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101544186A true CN101544186A (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910071956A Pending CN101544186A (en) | 2009-05-06 | 2009-05-06 | Separable bevel gear differential balance mechanism |
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| CN (1) | CN101544186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150834A (en) * | 2015-09-21 | 2015-12-16 | 中国矿业大学 | Controllable bevel gear type differential motion balancing device and moving platform with same |
-
2009
- 2009-05-06 CN CN200910071956A patent/CN101544186A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150834A (en) * | 2015-09-21 | 2015-12-16 | 中国矿业大学 | Controllable bevel gear type differential motion balancing device and moving platform with same |
| CN105150834B (en) * | 2015-09-21 | 2017-07-07 | 中国矿业大学 | Controllable bevel gear type differential balance device and the mobile platform with it |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090930 |