CN104964019A - Transmission mechanism of crawler-type machine - Google Patents
Transmission mechanism of crawler-type machine Download PDFInfo
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- CN104964019A CN104964019A CN201510367378.XA CN201510367378A CN104964019A CN 104964019 A CN104964019 A CN 104964019A CN 201510367378 A CN201510367378 A CN 201510367378A CN 104964019 A CN104964019 A CN 104964019A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 157
- 230000005540 biological transmission Effects 0.000 title claims abstract description 128
- 230000003068 static effect Effects 0.000 claims description 76
- 239000002699 waste material Substances 0.000 abstract description 4
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 230000002706 hydrostatic effect Effects 0.000 abstract 6
- 238000000034 method Methods 0.000 description 12
- 238000009966 trimming Methods 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Classifications
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- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H47/04—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the mechanical gearing being of the type with members having orbital motion
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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
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- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
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- 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
- F16H2712/00—Mechanisms for changing direction
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Retarders (AREA)
Abstract
The invention provides a transmission mechanism of a crawler-type machine. The transmission mechanism of the crawler-type machine comprises a power input device, a first hydrostatic transmission system, a second hydrostatic transmission system, a first planetary transmission mechanism, a second planetary transmission mechanism, a first power output device, a second power output device and a reversing device, wherein the first hydrostatic transmission system and the second hydrostatic transmission system are connected with the power input device, the first planetary transmission mechanism and the second planetary transmission mechanism are in transmission connection with the first hydrostatic transmission system and the second hydrostatic transmission system, the first power output device is connected with the first planetary transmission mechanism, the second power output device is connected with the second planetary transmission mechanism, and the reversing device is connected with the first planetary transmission mechanism or the second planetary transmission mechanism. According to the transmission mechanism of the crawler-type machine, high precision equipment is not needed for controlling the power output quantity of the two sides of the machine, and the cost is greatly reduced; meanwhile, due to the fact that the mechanical transmission efficiency usually can reach over 90%, waste of energy is avoided. Therefore, by means of the transmission mechanism of the crawler-type machine, the problems that in the prior art, the cost of the transmission mechanism is high, and the efficiency is low can be solved.
Description
Technical field
The present invention relates to a kind of driving mechanism, particularly relate to a kind of driving mechanism of crawler facility.
Background technique
Transmission device is the middle device power of prime mover being passed to operation mechanism.For crawler facility, the power of prime mover transfers to crawler belt by driving mechanism, thus realizes the driving of crawler facility and turn to, and ensures the normal operation of crawler facility.Turning to of crawler facility can be divided into three kinds of modes, is respectively that trimming turns to, differential steering and zero turn radius.Trimming turns to and is mainly used in turning between the stopping of crawler facility, and when facility need to turn between stopping, a crawler belt change into lower gear, a crawler belt hangs neutral gear, and because the crawler belt hanging neutral does not have Power output, facility then turn to for the center of circle completes to hang neutral gear track center.Differential steering be mainly used in crawler facility advance between turn to, two crawler belts of facility export different speed respectively, and make facility crawler belt be in high gear, a crawler belt is in low-grade location, the speed produced due to two crawler belts is different, and facility are then to low speed crawler belt directional steering.Zero turn radius be mainly used in crawler facility stop between turning to, two crawler belts of facility export the speed of same velocity ratio respectively, a forward gears, another reverse gear, facility then with car body center for the center of circle, realize pivot stud.
Usually, crawler facility mainly adopt following three kinds of modes to realize transmission: 1, mechanical friction clutch realizes driving or turning in conjunction with stage-geared; The trimming that this driving mechanism only can realize facility turns to, and Applicable scope is little, and higher to the performance requirement of clutch, has both required that clutch can reliably transmitting torque, in conjunction with after do not produce skidding, when requiring again clutch separation thoroughly, rapidly.Meanwhile, this structure is not suitable for external load and significantly changes or steering operation operation frequently.2, stage-geared realizes driving and turning in conjunction with ended stop to differential mechanism again.This kind of driving mechanism can make facility realize trimming to turn to and differential steering, cannot realize zero turn radius; The performance requirement of which to ended stop is higher, require that two side brakes export the proportional braking force of sizes to realize differential steering or to require that two side brake sides export enough braking moment braking opposite sides and do not export braking force and turn to realize trimming, make it export a certain proportion of braking force to need to adopt comparatively accurate automatical control system, cost is higher.3, oil hydraulic pump is exported to driving that two oil hydraulic motors drive crawler belt to realize facility by independent hydraulically controlled control unit and is turned to; Hydraulic control component is generally servovalve, and namely the two-way hydraulic oil pipe of oil hydraulic pump connects two servovalves respectively, and two servovalves control two oil hydraulic motors more respectively and carry out transmission.This mode can make up the defect of above-mentioned two kinds of modes, can realize that trimming turns to, differential steering and zero turn radius three kinds of steering modes, is the modal driving mode of current crawler facility.
At present, although adopt the third mode can realize the driving of crawler facility and trimming turns to, differential steering and zero turn radius three kinds of steering modes, but, owing to needing to adopt high-precision servo valve control system strictly to control the driving force of both sides oil hydraulic motor in transmission process, to ensure the traveling that crawler facility are steady, safe, therefore, the manufacture of this kind of implementation, maintenance, user cost are all higher.Meanwhile, the transmission efficiency of hydraulic pressure, usually below 80%, causes the waste of energy, and therefore, the efficiency of hydraulic transmission mode is low, loss is large.
Summary of the invention
The invention provides a kind of driving mechanism of crawler facility, to solve high, the inefficient problem of driving mechanism cost in prior art.
The invention provides a kind of driving mechanism of crawler facility, the driving mechanism of described crawler facility comprises: power input device; The first static hydraulic drive system be connected with described power input device and the second static hydraulic drive system; The first planet driving mechanism be in transmission connection with described first static hydraulic drive system and described second static hydraulic drive system respectively; The second epicyclic transmission mechanism be in transmission connection with described first static hydraulic drive system and described second static hydraulic drive system respectively; The first power take-off be connected with described first planet driving mechanism and the second power take-off be connected with described second epicyclic transmission mechanism; And the reversing arrangement to be connected with described first planet driving mechanism or described second epicyclic transmission mechanism.
Preferably, the first row star-wheel that above-mentioned first planet driving mechanism comprises the first ring gear, the first sun gear, the first row carrier and is arranged in described the first row carrier, and described the first row star-wheel is connected with a joggle with described first ring gear and described first sun gear respectively; The second planet wheel that described second epicyclic transmission mechanism comprises the second ring gear, the second sun gear, the second planet carrier and is arranged on described second planet carrier, and described second planet wheel is connected with a joggle with described second ring gear and described second sun gear respectively; Wherein, described first static hydraulic drive system is connected with described first ring gear and described second ring gear respectively; Described second static hydraulic drive system is connected with described first sun gear and described second sun gear respectively.
Preferably, above-mentioned first power take-off is connected with described the first row carrier; Described second power take-off is connected with described second planet carrier.
Preferably, above-mentioned reversing arrangement is connected with described first sun gear or described second sun gear.
Preferably, the driving mechanism of described crawler facility also comprises the first transmission device and the second transmission device, wherein, the side of described first transmission device connects described first static hydraulic drive system, and opposite side connects described first planet driving mechanism and described second epicyclic transmission mechanism; The side of described second transmission device connects described second static hydraulic drive system, and opposite side connects described first planet driving mechanism and described second epicyclic transmission mechanism.
Preferably, above-mentioned first transmission device and described second transmission device are Transmitted chains.
Preferably, the quantity of above-mentioned the first row star-wheel and described second planet wheel is 3-4, and described the first row star-wheel is identical with the quantity of described second planet wheel.
Preferably, the number of teeth of above-mentioned the first row star-wheel and described second planet wheel is 19, and the number of teeth of described first sun gear and described second sun gear is 20, and the number of teeth of described first ring gear and described second ring gear is 58.
The technological scheme that embodiments of the invention provide can comprise following beneficial effect:
The invention provides a kind of driving mechanism of crawler facility, the driving mechanism of described crawler facility comprises: power input device; The first static hydraulic drive system be connected with described power input device and the second static hydraulic drive system; The first planet driving mechanism be in transmission connection with described first static hydraulic drive system and described second static hydraulic drive system respectively; The second epicyclic transmission mechanism be in transmission connection with described first static hydraulic drive system and described second static hydraulic drive system respectively; The first power take-off be connected with described first planet driving mechanism and the second power take-off be connected with described second epicyclic transmission mechanism; And the reversing arrangement to be connected with described first planet driving mechanism or described second epicyclic transmission mechanism.
The driving mechanism of crawler facility provided by the invention, by the first static hydraulic drive system and the second static hydraulic drive system, motive force is carried out two directions' inputing, namely power inputs in the ambilateral first planet driving mechanism of crawler machine and the second epicyclic transmission mechanism by the first static hydraulic drive system respectively, simultaneously, power also inputs in the ambilateral first planet driving mechanism of crawler machine and the second epicyclic transmission mechanism by the second static hydraulic drive system respectively, therefore, first planet driving mechanism and the second epicyclic transmission mechanism all accept the power of the first static hydraulic drive system and two the power source transmission of the second static hydraulic drive system.Through the synthesis to motion of first planet driving mechanism and the second epicyclic transmission mechanism, power is directly exported by the first power take-off and the second power take-off, carries out synthesizing accelerated motion in the same way or being carried out the inverse composition retarded motion of power by reversing arrangement of power, thus realize the driving traveling of crawler facility and trimming turns to, differential steering and zero turn radius three kinds of steering modes.Gear drive has the advantage that transmission motion is reliable, instantaneous transmission ratio is constant, and when namely the power of both sides input is identical, then the power exported is also identical, guarantees the safe and reliable traveling of crawler facility and turns to.Therefore, the present invention, without the need to by highi degree of accuracy and the equipment of costliness carrys out the ambilateral power output of controller, significantly saves manufacture cost and the maintenance cost of crawler facility driving mechanism.Meanwhile, because the efficiency of mechanical transmission generally can reach more than 90%, therefore, effectively improve transmission efficiency, avoid loss and the waste of energy.It can thus be appreciated that the driving mechanism of crawler facility provided by the invention, can solve high, the inefficient problem of driving mechanism cost in prior art.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of the driving mechanism of a kind of crawler facility provided in the embodiment of the present invention;
Fig. 2 is the structural representation of the driving mechanism of the another kind of crawler facility provided in the embodiment of the present invention;
Diagram represents:
1-power input device, 2-first static hydraulic drive system, 3-second static hydraulic drive system, 4-first planet driving mechanism, 41-first ring gear, 42-first sun gear, 43-the first row carrier, 44-the first row star-wheel, 5-second epicyclic transmission mechanism, 51-second ring gear, 52-second sun gear, 53-second planet carrier, 54-second planet wheel, 6-first power take-off, 7-second power take-off, 8-reversing arrangement, 9-first transmission device, 10-second transmission device.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Mode of execution described in following exemplary embodiment does not represent all mode of executions consistent with the present invention.On the contrary, they only with as in appended claims describe in detail, the example of device that aspects more of the present invention are consistent.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiment.
Please refer to Fig. 1, the structural representation of the driving mechanism of a kind of crawler facility provided in the embodiment of the present invention is provided.
As shown in Figure 1, the invention provides a kind of driving mechanism of crawler facility, the driving mechanism of described crawler facility comprises: power input device 1, the first static hydraulic drive system 2 and the second static hydraulic drive system 3 be connected with described power input device 1, the first planet driving mechanism 4 be in transmission connection with described first static hydraulic drive system 2 and described second static hydraulic drive system 3 respectively, the second epicyclic transmission mechanism 5 be in transmission connection with described first static hydraulic drive system 2 and described second static hydraulic drive system 3 respectively, the first power take-off 6 be connected with described first planet driving mechanism 4 and the second power take-off 7 be connected with described second epicyclic transmission mechanism 5, and the reversing arrangement 8 to be connected with described first planet driving mechanism 4 or described second epicyclic transmission mechanism 5.Power input device 1 is by power transmission to the first static hydraulic drive system 2 and the second static hydraulic drive system 3, first static hydraulic drive system 2 by the power average transmission that receives to first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, same, second static hydraulic drive system 3 also by the power average transmission that receives to first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, thus, realize the two directions' inputing of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, namely first planet driving mechanism 4 receives the power that the first static hydraulic drive system 2 and the second static hydraulic drive system 3 two systems provide simultaneously, same, second epicyclic transmission mechanism 5 also receives the power that the first static hydraulic drive system 2 and the second static hydraulic drive system 3 two systems provide simultaneously.Finally, first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 under the cooperation of the steering gear 8 by power coupling after export through the first power take-off 6 and the second power take-off 7 respectively.
Working principle of the present invention is as follows:
Crawler facility of the present invention are mainly cat, crawler excavator and carrying tankette etc. are containing tracked facility, power input device 1 provided by the invention is as the motive power of the driving mechanism of this crawler facility, for this driving mechanism realizes driving traveling and Turning travel to provide motive force, be the power resources of whole crawler facility.General, power input device 1 can be motor, also can be the device that motor etc. can provide power.Power input device 1 is by power average transmission to the first static hydraulic drive system 2 and the second static hydraulic drive system 3, described first static hydraulic drive system 2 and described second static hydraulic drive system 3 by the power two directions' inputing of equalization that receives to first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, through the synthesis to motion of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, namely double dynamical synthesis is in the same way carried out and accelerated motion or carry out double dynamical inverse composition and retarded motion by reversing arrangement 8, power exports respectively by the first power take-off 6 be connected with first planet driving mechanism 4 and the second power take-off 7 of being connected with the second epicyclic transmission mechanism 5 the most at last, thus the driving realizing crawler facility travels, and trimming turns to, differential steering and zero turn radius three kinds of steering modes.Namely when crawler facility turn to, crawler facility can be realized between stopping or between advancing by the power coupling effect of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, crawler belt both sides have exporting in the same way of friction speed difference or have the reverse output of same gear ratios, thus complete the divertical motion of crawler facility.
It should be noted that, when crawler facility carry out linear drives traveling, second static hydraulic drive system 3 can be locked no-output, and the first static hydraulic drive system 2 is without first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, the power received directly is transferred to the first power take-off 6 and the second power take-off 7 exports, the straight-line travelling of crawler facility can be completed.Same, also the first static hydraulic drive system 2 can be locked no-output, and the second static hydraulic drive system 3 is without first planet driving mechanism 4 and the second epicyclic transmission mechanism 5, the power received directly is transferred to the first power take-off 6 and the second power take-off 7 exports, the straight-line travelling of crawler facility can be completed too.
Gear drive has the advantage that transmission motion is reliable, instantaneous transmission ratio is constant, and when namely the power of both sides input is identical, then the power exported is also identical, can guarantee the safe and reliable traveling of crawler facility and turn to.Therefore, the driving mechanism of crawler facility provided by the invention, without the need to by highi degree of accuracy and the equipment of costliness carrys out the ambilateral power output of controller, significantly saves manufacture cost and the maintenance cost of crawler facility driving mechanism.Meanwhile, because the efficiency of mechanical transmission generally can reach more than 90%, effectively transmission efficiency be can improve, loss and the waste of energy avoided.It can thus be appreciated that the driving mechanism of crawler facility provided by the invention, can solve high, the inefficient problem of driving mechanism cost in prior art.
It should be noted that, the first planet driving mechanism 4 provided in the present invention and the second epicyclic transmission mechanism 5 can be planetary pinions, also can be similar with Planetary Gear Transmission principle, other driving mechanisms synthesized that move can be realized, as cycloidal-pin wheel, harmonic gear and gear with small teeth difference etc. simultaneously.Preferably, the first planet driving mechanism 4 provided in the present invention and the second epicyclic transmission mechanism 5 are planetary pinion.
Please refer to Fig. 2, the structural representation of the driving mechanism of the another kind of crawler facility provided in the embodiment of the present invention is provided.
As shown in Figure 2, the first row star-wheel 44 that described first planet driving mechanism 4 comprises the first ring gear 41, first sun gear 42, the first row carrier 43 and is arranged in described the first row carrier 43, and described the first row star-wheel 44 is connected with a joggle with described first ring gear 41 and described first sun gear 42 respectively; The second planet wheel 54 that described second epicyclic transmission mechanism 5 comprises the second ring gear 51, second sun gear 52, second planet carrier 53 and is arranged on described second planet carrier 53, and described second planet wheel 54 is connected with a joggle with described second ring gear 51 and described second sun gear 52 respectively; Wherein, described first static hydraulic drive system 2 is connected with described first ring gear 41 and described second ring gear 51; Described second static hydraulic drive system 3 is connected with described first sun gear 42 and described second sun gear 52, and the first power take-off 6 is connected with described the first row carrier 43; Described second power take-off 7 is connected with described second planet carrier 53.Namely the first static hydraulic drive system 2 is by power average transmission to the first ring gear 41 that receives and the second ring gear 51, second static hydraulic drive system 3 is by power average transmission to the first sun gear 42 that receives and the second sun gear 52, through the synthesis of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 pairs of bidirectional-movements, power exports respectively through the first row carrier 43 and the second planet carrier 53 the most at last.
In the present embodiment, reversing arrangement 8 is connected with the first sun gear 42 or the second sun gear 52.Namely when reversing arrangement 8 is connected with the first sun gear 42, first planet driving mechanism 4 carries out double dynamical inverse composition and retarded motion by reversing arrangement 8, and the second epicyclic transmission mechanism 5 then carries out double dynamical synthesis in the same way and accelerated motion; Namely when reversing arrangement 8 is connected with the second sun gear 52, the second epicyclic transmission mechanism 5 carries out double dynamical inverse composition and retarded motion by reversing arrangement 8, and first planet driving mechanism 4 then carries out double dynamical synthesis in the same way and accelerated motion.Wherein, reversing arrangement 8 can be center reverse wheel, also can be that other have the device of commutation function, simultaneously, also can by the gears meshing direction of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 be arranged oppositely, the mode be set in power transmission direction in the same way realizes commutation.
Concrete, when crawler facility carry out linear drives, namely when straight ahead or retrogressing, second static hydraulic drive system 3 can be locked no-output, and the first static hydraulic drive system 2 is without the first ring gear 41 and the second ring gear 51, the power received directly is transferred to the first power take-off 6 and the second power take-off 7 exports, the straight-line travelling of crawler facility can be completed.Same, also the first static hydraulic drive system 2 can be locked no-output, and the second static hydraulic drive system 3 is without the first sun gear 42 and the second sun gear 52, the power received directly is transferred to the first power take-off 6 and the second power take-off 7 exports, the straight-line travelling of crawler facility can be completed too.
When crawler facility carry out differential steering or trimming turns to, reversing arrangement 8 can be connected with the first sun gear 42, also reversing arrangement 8 can be connected with the second sun gear 52.As reversing arrangement 8 is connected with the second sun gear 52, then the first static hydraulic drive system 2 and the second static hydraulic drive system 3 are exported simultaneously, namely the first ring gear 41 and the first sun gear 42 receive the power of the first static hydraulic drive system 2 and the transmission of the second static hydraulic drive system 3 respectively, through the power coupling of first planet driving mechanism 4, exported by the first row carrier 43, the acceleration finally realizing crawler facility side is rotated; Same, second ring gear 51 and the second sun gear 52 receive the power of the first static hydraulic drive system 2 and the transmission of the second static hydraulic drive system 3 respectively, because the second sun gear 52 is connected with reversing arrangement 8, therefore, after the power coupling of the second epicyclic transmission mechanism 5, what exported by the second planet carrier 53 is underdrive.Can realize crawler facility side thus and carry out acceleration rotation, opposite side carries out underdrive, makes the both sides of crawler facility have certain speed discrepancy, thus completes the differential steering of crawler facility.When underdrive is carried out to when stopping in the side of crawler facility, then can realize crawler facility side and carry out acceleration rotation, opposite side stops operating, thus the trimming completing crawler facility turns to.When reversing arrangement 8 is connected with the first sun gear 42, then the transmitting procedure of moving is contrary, and what namely the first row carrier 43 exported is underdrive, and what the second planet carrier 53 exported is accelerate to rotate, and concrete transmitting procedure repeats no more herein.
When crawler facility carry out zero turn radius, reversing arrangement 8 can be connected with the first sun gear 42, also reversing arrangement 8 can be connected with the second sun gear 52.As reversing arrangement 8 is connected with the second sun gear 52, then the first static hydraulic drive system 2 is locked no-output, power average transmission to the first sun gear 42 that second static hydraulic drive system 3 is received and the second sun gear 52, because the first sun gear 42 is identical with the power that the second sun gear 52 receives, and the second sun gear 52 is connected with reversing arrangement 8, therefore, the clockwise and anticlockwise that the both sides of crawler facility can be made to realize same velocity ratio exports, namely the side of crawler facility is with certain rotational speed, the opposite side of crawler facility rotates backward with identical rotating speed, finally realize the zero turn radius of crawler facility.When reversing arrangement 8 is connected with the first sun gear 42, concrete transmitting procedure and said process similar, repeat no more herein.
It should be noted that, first planet driving mechanism 4 provided by the invention is identical with the internal structure of the second epicyclic transmission mechanism 5, there is the planet wheel of equal number, the sun gear number of teeth, the planet wheel number of teeth and the ring gear number of teeth, to realize crawler facility both sides, there is identical velocity ratio.Preferably, the quantity of the first row star-wheel 44 and the second planet wheel 54 is 3-4.Certainly, the quantity of the first row star-wheel 44 and the second planet wheel 54 is not limited only to 3-4, and 3-4 planet wheel is the preferred version of the present embodiment.
In the present embodiment, the power intake of first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 is respectively the first ring gear 41, first sun gear 42 and the second ring gear 51, second sun gear 52, and output terminal is respectively the first row carrier 43 and the second planet carrier 53.The present invention is not limited in above-mentioned power input and output mode, also can pass through sun gear, planet carrier input, be exported by ring gear, and by ring gear, planet carrier input, is carried out the input output of power by other modes such as sun gear outputs.The power I/O mode that the present embodiment provides utilizes planetary gear reducing mechanism motion to be synthesized, and finally realizes the transmission of crawler facility.Planetary gear reducing mechanism effectively can control the transmission speed of crawler facility, motive force slowly, is stably exported after slowing down, guarantee the safety traffic of crawler facility, and the power I/O mode economical and effective the most that the present embodiment provides, manufacture cost is lower.Certainly, other I/O modes accelerate situation about exporting if there is motive force, also can strengthen reduction speed ratio by preposition Transmitted chains and process, but this kind of processing mode increases the rate of fault of manufacture cost and equipment.
The driving mechanism of the crawler facility that the present embodiment provides also comprises the first transmission device 9 and the second transmission device 10, wherein, the side of the first transmission device 9 connects the first static hydraulic drive system 2, and opposite side connects first planet driving mechanism 4 and the second epicyclic transmission mechanism 5; The side of the second transmission device 10 connects the second static hydraulic drive system 3, and opposite side also connects first planet driving mechanism 4 and the second epicyclic transmission mechanism 5.Namely the first static hydraulic drive system 2 is connected with first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 by the first transmission device 9, and the second static hydraulic drive system 3 is connected with first planet driving mechanism 4 and the second epicyclic transmission mechanism 5 by the second transmission device 10.Preferably, in the present embodiment, the first transmission device 9 and the second transmission device 10 are Transmitted chains.Certainly, the first transmission device 9 and the second transmission device 10 also can be belt etc. other can realize the device of transmission.
In the present embodiment, the number of teeth of the number of teeth of the first row star-wheel 44 and the second planet wheel 54 to be the number of teeth of the 19, first sun gear 43 and the second sun gear 52 be the 20, first ring gear 41 and described second ring gear 51 is 58.
The number of teeth of the first row star-wheel 44, second planet wheel 54, first sun gear 43, second sun gear 52, first ring gear 41 provided by the invention and the second ring gear 51 is not limited only to combinations thereof, also can be the compound mode that other can realize, the number of teeth as the first row star-wheel 44 and the second planet wheel 54 is 25, the number of teeth of the first sun gear 43 and the second sun gear 52 is the number of teeth of the 26, first ring gear 41 and described second ring gear 51 is 76; The number of teeth of the number of teeth of the first row star-wheel 44 and the second planet wheel 54 to be the number of teeth of the 35, first sun gear 43 and the second sun gear 52 be the 19, first ring gear 41 and described second ring gear 51 is 89 etc.
The first power take-off 6 provided in the present embodiment and the second power take-off 7 are the first driving wheel and the second driving wheel, certainly, also can be other devices that are rational, that can output power.
It should be noted that, driving mechanism provided by the invention is not limited only to crawler facility, also can need the driving mechanism of the facility driving and turn to as other, as car, bus and transport vehicle etc.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any amendment done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
It should be noted that, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a driving mechanism for crawler facility, is characterized in that, the driving mechanism of described crawler facility comprises:
Power input device (1);
The first static hydraulic drive system (2) be connected with described power input device (1) and the second static hydraulic drive system (3);
The first planet driving mechanism (4) be in transmission connection with described first static hydraulic drive system (2) and described second static hydraulic drive system (3) respectively; The second epicyclic transmission mechanism (5) be in transmission connection with described first static hydraulic drive system (2) and described second static hydraulic drive system (3) respectively;
The first power take-off (6) be connected with described first planet driving mechanism (4) and the second power take-off (7) be connected with described second epicyclic transmission mechanism (5); And,
The reversing arrangement (8) be connected with described first planet driving mechanism (4) or described second epicyclic transmission mechanism (5).
2. the driving mechanism of crawler facility according to claim 1, is characterized in that,
The first row star-wheel (44) that described first planet driving mechanism (4) comprises the first ring gear (41), the first sun gear (42), the first row carrier (43) and is arranged on described the first row carrier (43), and described the first row star-wheel (44) is connected with a joggle with described first ring gear (41) and described first sun gear (42) respectively;
The second planet wheel (54) that described second epicyclic transmission mechanism (5) comprises the second ring gear (51), the second sun gear (52), the second planet carrier (53) and is arranged on described second planet carrier (53), and described second planet wheel (54) is connected with a joggle with described second ring gear (51) and described second sun gear (52) respectively; Wherein,
Described first static hydraulic drive system (2) is connected with described first ring gear (41) and described second ring gear (51) respectively;
Described second static hydraulic drive system (3) is connected with described first sun gear (42) and described second sun gear (52) respectively.
3. the driving mechanism of crawler facility according to claim 2, is characterized in that, described first power take-off (6) is connected with described the first row carrier (43); Described second power take-off (7) is connected with described second planet carrier (53).
4. the driving mechanism of crawler facility according to claim 2, is characterized in that, described reversing arrangement (8) is connected with described first sun gear (42) or described second sun gear (52).
5. the driving mechanism of crawler facility according to claim 1, is characterized in that, the driving mechanism of described crawler facility also comprises the first transmission device (9) and the second transmission device (10), wherein,
The side of described first transmission device (9) connects described first static hydraulic drive system (2), and opposite side connects described first planet driving mechanism (4) and described second epicyclic transmission mechanism (5);
The side of described second transmission device (10) connects described second static hydraulic drive system (3), and opposite side connects described first planet driving mechanism (4) and described second epicyclic transmission mechanism (5).
6. the driving mechanism of crawler facility according to claim 5, is characterized in that, described first transmission device (9) and described second transmission device (10) are Transmitted chains.
7. the driving mechanism of crawler facility according to claim 2, it is characterized in that, the quantity of described the first row star-wheel (44) and described second planet wheel (54) is 3-4, and described the first row star-wheel (44) is identical with the quantity of described second planet wheel (54).
8. the driving mechanism of crawler facility according to claim 2, it is characterized in that, the number of teeth of described the first row star-wheel (44) and described second planet wheel (54) is 19, the number of teeth of described first sun gear (43) and described second sun gear (52) is 20, and the number of teeth of described first ring gear (41) and described second ring gear (51) is 58.
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| CN201510367378.XA CN104964019B (en) | 2015-06-29 | 2015-06-29 | The transmission rig of a kind of track type facility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510367378.XA CN104964019B (en) | 2015-06-29 | 2015-06-29 | The transmission rig of a kind of track type facility |
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| CN104964019B CN104964019B (en) | 2016-06-08 |
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| CN104964019B (en) | 2016-06-08 |
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Denomination of invention: A transmission mechanism of crawler implements Effective date of registration: 20230302 Granted publication date: 20160608 Pledgee: China Construction Bank Corporation Shuangfeng Sub-branch Pledgor: HUNAN NONGYOU MACHINERY GROUP Co.,Ltd.|HUNAN NONGYOU SHENGTAI AGRICULTURAL TECHNOLOGY CO.,LTD. Registration number: Y2023980033958 |
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