CN102003512A - Multi-output-opening transfer case for special monomotor low-speed walking operation vehicles - Google Patents
Multi-output-opening transfer case for special monomotor low-speed walking operation vehicles Download PDFInfo
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- CN102003512A CN102003512A CN 201010542718 CN201010542718A CN102003512A CN 102003512 A CN102003512 A CN 102003512A CN 201010542718 CN201010542718 CN 201010542718 CN 201010542718 A CN201010542718 A CN 201010542718A CN 102003512 A CN102003512 A CN 102003512A
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Abstract
The invention relates to a transmission device, in particular to a multi-output-opening transfer case for special monomotor low-speed walking operation vehicles. The multi-output-opening transfer case for the special monomotor low-speed walking operation vehicles disclosed in the invention is arranged on a base plate transmission shaft, first operation equipment and second operation equipment are arranged on the special vehicle, and the transfer case comprises a case body provided with a mechanical transmission input opening, a hydraulic motor motive power input opening, a hydraulic oil pump output opening, a mechanical transmission output opening, a first operation equipment driving output opening and a second operation equipment driving output opening. The invention can simultaneously realize the high-speed running and low-speed walking operation requirements only by using one original motor of a base plate, and high-output rotating speed for driving other operation equipment is also provided while the low-speed walking of the vehicles is met, so the waste exhaust and the oil consumption of the whole vehicle and the motor can be greatly reduced, and the work efficiency of the motor and the whole vehicle can be improved.
Description
Technical field
The present invention relates to a kind of transmission device, relate in particular to a kind of multioutlet transfer case that is used for monomotor low speed walking operation special vehicle.
Background technique
At present, a lot of special vehicles need carry out operation by high-revolving implement at the low speed car of driving a vehicle.As sweeping machine, sweeper or the like.Sweeping machine is the key operation vehicle that present urban road and high-grade highway clean, keep a public place clean.Main structure, function and the principle of sweeping machine are as follows at present: existing sweeping machine, on the truck chassis of a routine, a garbage can, auxiliary engine, a typhoon machine and less important work mechanisms such as some brushes and some other hydraulic jack have been installed.Sweeper is to have increased water tank and water pump on the basis of sweeping machine, and has increased the function that ground is washed.Sweeping machine or sweeper mainly are divided into two kinds of working staties:
One, when high speed traveling, the original motor of truck chassis is realized walking by the gearbox powered vehicle.
Two, when low speed is swept the road operation, the original engine in situ of truck places on the idle speed, and gearbox places the starting gear, and the truck chassis motor is realized the low speed walking by the gearbox powered vehicle; Simultaneously, vehicle-mounted another auxiliary engine then places on the high rotating speed, drives blower fan and hydraulic-pressure pump.Blower fan provides the power of drawing pavement garbage for sweeping machine; Hydraulic-pressure pump then further for brush and other hydraulic jacks provide operation power, is realized the job requirements of equipment.
There is following shortcoming in the twin-engined type of belt drive of sweeping machine, sweeper at present:
1. engine consumption is big, discharging is big, noise is big, loss is big;
In order to keep the turbidity test on operation road surface, in sweeping the road operation process, the operation speed of travel of vehicle is generally 5-8km/h; Realize this operating speed, engine in situ must be placed (800-1000rpm) on the idling speed, and the gearbox of vehicle also to place on the low gear and (be generally the starting gear of large speed ratio), could realize this low speed operating speed.Yet the engine in situ long-term work is on the non-economy rotating speed of idling 800-1000rpm (economic speed is generally 1500-1600rpm), and not only oil consumption is big, and the loss of motor itself is also big;
In addition, for the working speed (being generally 2500-3000rpm) that guarantees blower fan, the working speed (being generally 2000---2500rpm) of hydraulic-pressure pump and the working speed (being generally 1200-1500rpm) of water pump, the rotating speed of auxiliary engine then needs to be arranged on maximum speed (being generally 2000rpm), and need by the belt pulley transmission speedup or decelerate on the working speed of blower fan, hydraulic-pressure pump and water pump requirement respectively.
Owing on same vehicle, should realize low speed traveling requirement simultaneously, satisfy working equipment high speed job requirements again, on same set of machine driven system two implacable contradictions.Therefore, in sweeping the road operation process, in fact there are two motors to work at the same time.1 is the original motor of vehicle itself at low-speed running binding chassis gearbox speed ratio then, is used to realize the low speed speed of travel of vehicle; 1 then is that auxiliary engine is in the high speed running at full capacity, by belt pulley driving blower fan, brush, water pump high speed operation in addition.Two simultaneous firings, not only oil consumption height, noise are big, toxic emission is also big, do not meet the theory of environmental protection and energy saving fully.
2. vehicle weight is big, operating efficiency is low;
Because auxiliary engine need be installed on the truck chassis, auxiliary engine itself has bigger volume and weight, need occupy vehicle arrangement space greatly.The volume and weight that auxiliary engine has occupied makes the garbage can of vehicle and the volume of filtered water tank also to be restricted, and directly causes the continuous operation time of vehicle to shorten.Simultaneously, the weight of motor self, also all the time as the load of vehicle and consumed power, the utilization ratio of vehicle itself reduces in vehicle driving and operation process.
Afterwards, single-engined sweeping machine had appearred using.This single-engined sweeping machine is provided with a transfer case that is used for distributed power on the transmission shaft of chassis, described transfer case is between gearbox and back axle, it uses monomotor to connect the hydraulic transmission configuration, by the hydraulic-pressure pump of a plurality of series connection of engine-driving, realize that by controlling a plurality of hydraulic-pressure pumps, oil hydraulic motor powered vehicle travels and the apparatus for work construction operation.But this single-engined transmission device, whole machine powers that motor is produced are converted to the machine power powered vehicle respectively by a plurality of oil hydraulic motors again and travel and drive other All Jobs devices after a plurality of hydraulic-pressure pumps convert hydraulic power to.Yet, well-known, have only direct mechanical powerdriven about 70% through the efficient of the hydraulic power transmission after above-mentioned twice hydraulic power conversion, in addition lower.Especially for other apparatus for work with high-power requirement, this power-converting process has caused great power loss.Therefore, the energy loss of this scheme is very big, does not also meet the theory of environmental protection and energy saving.
Therefore, how providing a kind of multioutlet transfer case that is used for monomotor low speed walking operation special vehicle that can effectively improve the working efficiency of motor and car load is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of multioutlet transfer case that is used for monomotor low speed walking operation special vehicle,, effectively improve the working efficiency of motor and car load by power reasonable distribution with input.
To achieve the above object, the present invention adopts following technological scheme:
A kind of multioutlet transfer case that is used for monomotor low speed walking operation special vehicle, described transfer case is installed on the transmission shaft of chassis, described special vehicle is provided with first implement and second implement, described transfer case comprises: casing, described casing are provided with mechanical transmission inlet opening, oil hydraulic motor power inlet opening, hydraulic-pressure pump delivery outlet, mechanical transmission delivery outlet, the first implement drive output port and the second implement drive output port; Described transfer case comprises three kinds of mode of operations:
During first kind of mode of operation, the machine power that enters transfer case from described mechanical transmission inlet opening directly is transferred to described mechanical transmission delivery outlet;
During second kind of mode of operation, from the machine power that described mechanical transmission inlet opening enters transfer case, separated into two parts, first portion's machine power directly is transferred to described first implement drive output port and the described second implement drive output port respectively; The second portion machine power is after the hydraulic-pressure pump that described hydraulic-pressure pump delivery outlet driving directly is mounted thereon is transformed into hydraulic power, oil hydraulic motor through being installed on the described oil hydraulic motor power inlet opening is transformed into machine power with hydraulic power, behind described oil hydraulic motor power inlet opening input transfer case, again by described mechanical transmission delivery outlet output;
During the third mode of operation, from the machine power that described mechanical transmission inlet opening enters transfer case, separated into two parts, first portion's machine power directly is transferred to the described first implement drive output port; The second portion machine power is after the hydraulic-pressure pump that described hydraulic-pressure pump delivery outlet driving directly is mounted thereon is transformed into hydraulic power, oil hydraulic motor through being installed on the described oil hydraulic motor power inlet opening is transformed into machine power with hydraulic power, behind described oil hydraulic motor power inlet opening input transfer case, again by described mechanical transmission delivery outlet output.
Preferably, be provided with input shaft in the described casing, output shaft, first implement and hydraulic-pressure pump transmission shaft, hydraulic motor output shaft, the second implement transmission shaft, the first shift fork inversion mechanism, the second shift fork inversion mechanism and the 3rd shift fork inversion mechanism, position, the corresponding described mechanical transmission inlet opening of described input shaft, the corresponding described mechanical transmission delivery outlet of described output shaft position, corresponding first implement drive output port position of one end of described first implement and hydraulic-pressure pump transmission shaft and the corresponding hydraulic-pressure pump delivery outlet of the other end position, position, the corresponding oil hydraulic motor power inlet opening of described hydraulic motor output shaft, the corresponding described second implement drive output port position of the described second implement transmission shaft, described input shaft is provided with the first slippage duplicate gear, described first implement and hydraulic-pressure pump transmission shaft are provided with first driven gear, described hydraulic motor output shaft is provided with second shifting slide gear, described output shaft is provided with second driven gear and the 3rd driven gear, described the 3rd driven gear is located at the medial extremity of described output shaft, and the described second implement transmission shaft is provided with the 3rd shifting slide gear; The described first slippage duplicate gear has the two kinds of working staties that are meshed with first driven gear engagement or with the 3rd driven gear under the effect of the first shift fork inversion mechanism; Described second shifting slide gear has with the engagement of second driven gear under the second shift fork inversion mechanism effect or does not mesh two kinds of working staties; Described the 3rd shifting slide gear has with the engagement of the first slippage duplicate gear under the 3rd shift fork inversion mechanism effect and breaks away from two states.
Preferably, during first kind of mode of operation, described first slippage duplicate gear and the engagement of described the 3rd driven gear, described second shifting slide gear and described second driven gear break away from, and described the 3rd shifting slide gear and the described first slippage duplicate gear break away from; During second kind of mode of operation, described first slippage duplicate gear and the engagement of described first driven gear, described second shifting slide gear and the engagement of described second driven gear, described the 3rd shifting slide gear and the engagement of the described first slippage duplicate gear; During the third mode of operation, described first slippage duplicate gear and the engagement of described first driven gear, described second shifting slide gear and the engagement of described second driven gear, described the 3rd shifting slide gear and the described first slippage duplicate gear break away from.
Preferably, has mutual interlocking gear between the described first shift fork inversion mechanism and the second shift fork inversion mechanism, the described first shift fork inversion mechanism comprises first push rod and first shift fork that is mutually permanently connected, the described second shift fork inversion mechanism comprises second push rod and second shift fork that is mutually permanently connected, described mutual interlocking gear comprises the pin of being located in the casing, second groove of being located at first groove of the described first push rod periphery and being located at the described second push rod periphery, and described first groove, second groove mate with the end size of described pin respectively.
Preferably, the described first implement drive output port is directly installed the belt pulley that drives first implement or is connected the transmission shaft that drives first implement.
Preferably, the described second implement drive output port is directly installed the belt pulley that drives second implement or is connected the transmission shaft that drives second implement.
Preferably, described hydraulic-pressure pump and oil hydraulic motor have an employing variable format at least
Preferably, described hydraulic-pressure pump some little hydraulic-pressure pumps of connecting.
The present invention is used for the multioutlet transfer case of monomotor low speed walking operation special vehicle, and when first kind of mode of operation (high speed traveling pattern), transfer case directly outputs to back axle to the machine power from motor, the powered vehicle high speed driving.When second kind of mode of operation and the third mode of operation (all being low speed operations), the engine in situ setting also is fixed in the specified economic speed and (is generally 1500-1600rpm), engine speed is imported transfer case by transmission shaft, after inner speed ratio adjustment of transfer case and coupling, each delivery outlet of transfer case is exported the different fixing working speed of different work equipment such as its first implement that drives, hydraulic-pressure pump and second implement.That is to say, when the low speed operation, transfer case will be from a part of mechanical power transmission of motor to the first implement delivery outlet and/or the second implement delivery outlet etc., simultaneously another part machine power is used to take to back axle from the output of mechanical transmission delivery outlet again after hydraulic-pressure pump and the transmission of oil hydraulic motor speed change and rotates, exercise with powered vehicle low speed.Because the high-power power of first implement and second implement does not pass through hydraulic pressure transfer, therefore, has prevented the power loss that hydraulic transmission caused.And the low speed of vehicle is exercised, owing to need very little power (only accounting for the 10-15% of total output under sweeping machine or the sweeper local-speed mode of operation usually), even so use the energy loss that hydraulic pressure transfer produced also very little, and then can control the speed of vehicle after the Variable Control through hydraulic-pressure pump or oil hydraulic motor, realize the stable low speed walking of vehicle, and can realize stepless change.
In a word, the present invention only uses the original motor in chassis can realize the high speed traveling of vehicle and low speed walking job requirements simultaneously, the low speed of a motor vehicle and the high unmatched contradiction of implement rotating speed transmission when having solved the low speed operation.When satisfying vehicle low speed walking operation, the high output speed that is used to drive other implements also is provided, greatly reduce discarded discharging, the oil consumption of car load and motor; Improved the working efficiency of motor and car load.
Description of drawings
The multioutlet transfer case that is used for monomotor low speed walking operation special vehicle of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the schematic perspective view that the present invention is used for the multioutlet transfer case of monomotor low speed walking operation special vehicle;
Fig. 2 is the plan view that the present invention is used for the multioutlet transfer case of monomotor low speed walking operation special vehicle;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the plan view of Fig. 2;
Fig. 6 is the transfer case embodiment's 1 of the present invention schematic diagram when first kind of mode of operation (high speed traveling pattern);
Schematic diagram when Fig. 7 is second kind of mode of operation (the low speed driving pattern of first implement and second implement operation simultaneously) of transfer case embodiment 1 of the present invention;
Schematic diagram when Fig. 8 is the third mode of operation (the low speed driving pattern of the first implement operation and the second not operation of implement) of transfer case embodiment 1 of the present invention;
Fig. 9 is the structural representation of the first shift fork inversion mechanism, the second shift fork inversion mechanism and locking mechanism.
Among the figure, the 1-casing, 101-mechanical transmission inlet opening, 102-oil hydraulic motor power inlet opening, 103-hydraulic-pressure pump delivery outlet, 104-mechanical transmission delivery outlet, the 105-first implement drive output port, the 106-second implement drive output port, the 110-input shaft, the 111-first slippage duplicate gear, 120-first implement and hydraulic-pressure pump transmission shaft, 121-first driven gear, the 130-hydraulic motor output shaft, 131-second shifting slide gear, the 140-output shaft, 141-second driven gear, 142-the 3rd driven gear, the 150-second implement transmission shaft, 151-the 3rd shifting slide gear, the 2-oil hydraulic motor, the 3-hydraulic-pressure pump, 4-drives the belt pulley of first implement, 5-drives the belt pulley of second implement, the 6-first shift fork inversion mechanism, 61 first push rods, 611-first groove, 62-first shift fork, the 7-second shift fork inversion mechanism, 71-second push rod, 711-second groove, 72-second shift fork, 8-the 3rd shift fork inversion mechanism, the 9-needle bearing, the 10-pin.
Embodiment
Below will be described in further detail the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle of the present invention.
Below with reference to accompanying drawings the present invention is described in more detail, has wherein represented the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize advantageous effects of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
For clear, whole features of practical embodiments are not described.In the following description, be not described in detail known function and structure, because they can make the present invention because unnecessary details and confusion.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details, for example, change into another embodiment by an embodiment according to relevant system or relevant commercial restriction to realize developer's specific objective.In addition, will be understood that this development may be complicated and time-consuming, but only be routine work to those skilled in the art.
For purpose of the present invention, feature are become apparent, the specific embodiment of the present invention is further described below in conjunction with accompanying drawing.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
Consult Fig. 1-Fig. 9, this multioutlet transfer case that is used for monomotor low speed walking operation special vehicle, between gearbox and back axle, be installed on the transmission shaft of chassis, and with the chassis transmission shaft be divided into half front axle and the back semiaxis, described special vehicle is provided with first implement and second implement.In the present embodiment, described first implement is a blower fan, and described second implement is a water pump.Certainly, described first low speed walking implement and second low speed walking implement are not limited to blower fan and water pump, also can be compressor, blower, generator or the like.
Described transfer case comprises: casing 1, described casing 1 are provided with mechanical transmission inlet opening 101, oil hydraulic motor power inlet opening 102, hydraulic-pressure pump delivery outlet 103, mechanical transmission delivery outlet 104, the first implement drive output port 105 and the second implement drive output port 106; Described mechanical transmission inlet opening 101 is used to connect the half front axle from gearbox output; Described hydraulic-pressure pump delivery outlet 103 is used for directly installing hydraulic-pressure pump 3; Described oil hydraulic motor power inlet opening 102 is used for directly installing oil hydraulic motor 2; Described hydraulic-pressure pump 3 drives described oil hydraulic motor 2 through hydraulic pipe line and rotates, and has at least one to adopt variable format in described hydraulic-pressure pump 3 and the described oil hydraulic motor 2; Described mechanical transmission delivery outlet 104 is used to connect the back semiaxis; The described first implement drive output port 105 is used for providing machine power to first implement; The described second implement drive output port 106 is used for providing machine power to second implement; Described transfer case comprises three kinds of mode of operations:
During first kind of mode of operation, i.e. high speed traveling pattern, please in conjunction with consulting 6, the machine power that enters transfer case from described mechanical transmission inlet opening 101 directly is transferred to described mechanical transmission delivery outlet 104;
During second kind of mode of operation, the low speed driving pattern of i.e. first implement and second implement operation simultaneously, please in conjunction with consulting 7, the machine power that enters transfer case from described mechanical transmission inlet opening 101, separated into two parts, first portion's machine power directly are transferred to described first implement drive output port 105 and the described second implement drive output port 106 respectively; Described second portion machine power is transformed into hydraulic power after described hydraulic-pressure pump delivery outlet 103 is delivered to described oil hydraulic motor power inlet opening 102 through described hydraulic-pressure pump 3, and described oil hydraulic motor 2 is exported by described mechanical transmission delivery outlet 104 after described hydraulic power is transformed into machine power.
During the third mode of operation, the low speed driving pattern of the i.e. first implement operation and the second not operation of implement, please in conjunction with consulting 8, the machine power that enters transfer case from described mechanical transmission inlet opening 101, separated into two parts, first portion's machine power directly are transferred to the described first implement drive output port 105; Described second portion machine power is transformed into hydraulic power after described hydraulic-pressure pump delivery outlet 103 is delivered to described oil hydraulic motor power inlet opening 102 through described hydraulic-pressure pump 3, and described oil hydraulic motor 2 is exported by described mechanical transmission delivery outlet 104 after described hydraulic power is transformed into machine power.
The structural type that realizes above-mentioned three kinds of patterns has a lot, the specific constructive form that present embodiment adopted is as follows: be provided with input shaft 110 in the described casing 1, output shaft 140, first implement and hydraulic-pressure pump transmission shaft 120, hydraulic motor output shaft 130, the second implement transmission shaft 150, the first shift fork inversion mechanism 6, the second shift fork inversion mechanism 7 and the 3rd shift fork inversion mechanism 8,101 positions, described input shaft 110 corresponding described mechanical transmission inlet openings, described output shaft 140 corresponding described mechanical transmission delivery outlets 104 positions, the corresponding first implement drive output port, 105 positions of one end of described first implement and hydraulic-pressure pump transmission shaft 120 and the corresponding hydraulic-pressure pump delivery outlet of the other end 103 positions, 102 positions, described hydraulic motor output shaft 130 corresponding oil hydraulic motor power inlet openings, the described second implement transmission shaft, the 150 corresponding described second implement drive output port 106 positions, described input shaft 110 is connected with the beam warp needle bearing with output shaft 140.When the first slippage duplicate gear 111 and 142 disengagings of the 3rd driven gear, needle bearing 9 can completely cut off the transmission between input shaft 110 and the output shaft 140.Described input shaft 110 is provided with the first slippage duplicate gear 111, described first implement and hydraulic-pressure pump transmission shaft 120 are provided with first driven gear 121, described hydraulic motor output shaft 130 is provided with second shifting slide gear 131, described output shaft 140 is provided with second driven gear 141 and the 3rd driven gear 142, described the 3rd driven gear 142 is located at the medial extremity of described output shaft 140, and the described second implement transmission shaft 150 is provided with the 3rd shifting slide gear 151; The described first slippage duplicate gear 111 has the two kinds of working staties that are meshed with the engagement of first driven gear 121 or with the 3rd driven gear 142 under the effect of the first shift fork inversion mechanism 6; Described second shifting slide gear 131 has with 141 engagements of second driven gear under 7 effects of the second shift fork inversion mechanism or does not mesh two kinds of working staties; Described the 3rd shifting slide gear 151 has with 111 engagements of the first slippage duplicate gear under 8 effects of the 3rd shift fork inversion mechanism and breaks away from two states.
The speed ratio relation of each gear in the transfer case is as follows:
Because input shaft 110 speed are set in the economic speed 1500---1800rpm of motor usually, and first implement and hydraulic-pressure pump 3 require working speed between 2500-3000rpm, therefore the gear transmission between input shaft 110 and first implement and the hydraulic-pressure pump transmission shaft 120 is a speedup, promptly adopts speed increasing ratio between the first slippage duplicate gear 111 and first driven gear 121.
Because input shaft 110 speed are set in the economic speed 1500---1800rpm of motor usually, and second implement require working speed between 800--2000rpm, so the gear transmission between the input shaft 110 and the second implement transmission shaft 150 depends on that the different model second implement working speed requires but slows down or speedup.Promptly select reduction speed ratio or speed increasing ratio as required between the first slippage duplicate gear 111 and the 3rd shifting slide gear 151.
Because vehicle low speed requirement during the walking operation, output shaft 140 rotating speeds require usually at 0-400rpm, and the working speed of oil hydraulic motor 2 is usually at 600---2000rpm, therefore gear transmission is to slow down between hydraulic motor output shaft 130 and the output shaft 140, promptly adopts reduction speed ratio between second shifting slide gear 131 and second driven gear 141.
In the present embodiment, please,, has mutual interlocking gear between the described first shift fork inversion mechanism 6 and the second shift fork inversion mechanism 7 in order to protect oil hydraulic motor and associated hydraulic equipment in conjunction with consulting Fig. 1 and Fig. 9.The described first shift fork inversion mechanism comprises first push rod 61 and first shift fork 62 that is mutually permanently connected.Described first shift fork 62 is used for moving the described first slippage dual gear 111.The described second shift fork inversion mechanism comprises second push rod 71 and second shift fork 72 that is mutually permanently connected.Described second shift fork 72 is used for moving described second shifting slide gear 131.Described mutual interlocking gear comprises the pin of being located in the casing 1 10, second groove 711 of being located at first groove 611 of described first push rod, 61 peripheries and being located at described second push rod, 71 peripheries.Described first groove 611, second groove 711 mate with the end size of described pin 10 respectively.
As shown in Figure 9, before first push rod 61 that moves the first shift fork inversion mechanism 6 makes win slippage duplicate gear 111 and 121 disengagings of first driven gear, must move second push rod 71 of the second shift fork inversion mechanism 7 earlier, being about to second push rod 71 moves down, make pin 10 and described second groove, 711 aligned in position, thereby pin 10 has obtained to provide possibility to the space of second push rod, 71 side shiftings and for moving first push rod 61.When moving first push rod 61, pin 10 is pushed in second groove 711 by first push rod 61, and first push rod 61 moves on to the position that makes that second shifting slide gear 131 and second driven gear 141 break away from; This has just guaranteed that before meshing after the first slippage duplicate gear 111 and 121 disengagings of first driven gear and with the 3rd driven gear 142, second shifting slide gear 131 and second driven gear 141 have been in disengaged position.So just avoided when input shaft 110 is connected with output shaft 140 with the engagement of the 3rd driven gear 142 by first duplicate gear 111, oil hydraulic motor input shaft 130 has been avoided the power input of oil hydraulic motor and the machine power input conflict mutually of input shaft 110 by the possibility that second shifting slide gear 131 is connected with output shaft 140 with 141 engagements of second follower.Vice versa for above-mentioned mutual interlocking gear, promptly made before connecting hydraulic motor output shaft 130, must earlier input shaft 110 be connected with hydraulic-pressure pump transmission shaft 120 with first implement, promptly breaks away from input shaft 110 earlier and be connected with the direct of output shaft 140.Conflicting between this has equally also been avoided the input of oil hydraulic motor power and the machine power of input shaft 110 is imported.
The employing mutual interlocking gear mainly is to be used for protecting hydraulic motor output shaft 130 directly directly to be connected with mechanical transmission input shaft 110 in no instance, avoids the direct and hydraulic motor output shaft 130 engagement rotation oil hydraulic motors in machine power input back.Owing to there is a reduction speed ratio between hydraulic motor output shaft 130 and the output shaft 140, be to have a speed increasing ratio between output shaft 140 and the hydraulic motor output shaft 130, if input shaft 110 has been connected (under first kind of mode of operation) with output shaft 140, and hydraulic motor output shaft 130 also keeps engagement with output shaft 140, then the rotating speed of input shaft 110 will drive oil hydraulic motor 2 with very high rotating speed, the hydraulic system of damaging oil hydraulic motor 2 and linking after through the speed increasing ratio speedup.Increase mutual interlocking gear, then on mechanical structure, avoided the first shift fork inversion mechanism 6 and the second shift fork inversion mechanism 7 possibility of misoperation to occur completely, guaranteed the reliable and secure operation of transfer case to greatest extent.
When first kind of mode of operation, when being the high speed traveling pattern, please in conjunction with consulting 6, described first slippage duplicate gear 111 and 142 engagements of described the 3rd driven gear, described second shifting slide gear 131 and described second driven gear 141 break away from, and described the 3rd shifting slide gear 151 and the described first slippage duplicate gear 111 break away from.Under first kind of mode of operation, the first slippage duplicate gear 111 is meshed with the 3rd driven gear 142, described mechanical transmission inlet opening 101 directly is connected in transfer case inside with described mechanical transmission delivery outlet 104, and promptly the input shaft 110 of transfer case directly links to each other with output shaft 140.And oil hydraulic motor power inlet opening 102, hydraulic-pressure pump delivery outlet 103, the first implement drive output port 105, the second implement drive output port 106 break away from fully with input shaft 110 and output shaft 140, do not input or output power.Vehicle keeps original chassis high speed traveling performance, and transfer case does not participate in the driving transmission of vehicle.
During second kind of mode of operation, when the low speed of i.e. first implement and second implement operation is simultaneously driven a vehicle pattern, please in conjunction with consulting 7, described first slippage duplicate gear 111 and 121 engagements of described first driven gear, described second shifting slide gear 131 and 141 engagements of described second driven gear, described the 3rd shifting slide gear 151 and 111 engagements of the described first slippage duplicate gear.From the power of engine in situ, via being redistributed on each delivery outlet of each transfer case, wherein behind the input shaft 110 input transfer cases:
----is assigned to the power (being first portion's power) on the first implement drive output port 105 and the second implement drive output port 106, then directly drives corresponding implement by belt pulley being installed or being connected transmission shaft.
Power on---the be assigned to hydraulic-pressure pump 3 (being the power of second portion), by being input to transfer case inside behind the oil hydraulic motor 2 again, and, export further powered vehicle back axle of back through mechanical transmission delivery outlet 104 by transfer case internal gear transmission driving output shaft 140.Under the constant prerequisite of input speed, by the discharge capacity of real time altering hydraulic-pressure pump 3 (variable capacity oil pump) and oil hydraulic motor 2 (variable displacement motor), the speed of change vehicle that can be real-time, thus realize the stepless change of vehicle;
Under this second kind of mode of operation, the first slippage duplicate gear 111 and the 3rd driven gear 142 are separated and make input shaft 110 and output shaft 140 throw off, and described mechanical transmission inlet opening 101 is separated in transfer case inside with described mechanical transmission delivery outlet 104; Described mechanical transmission inlet opening 101 is by transfer case internal gear engagement driving, outputting power drives hydraulic-pressure pump delivery outlet 103, the first implement drive output port 105 and the second implement drive output port 106, since be installed on the hydraulic-pressure pump delivery outlet 103 hydraulic-pressure pump 3 be installed on the oil hydraulic motor power inlet opening 102 oil hydraulic motor 2 and couple together by pipeline, therefore, hydraulic-pressure pump 3 drives oil hydraulic motor 2 and rotates, and transfer case internal gear engagement driving is passed through in oil hydraulic motor power inlet opening 102, and the outputting power of oil hydraulic motor 2 is with driving device transmission delivery outlet 104.
During the third mode of operation, during the low speed driving pattern of the i.e. first implement operation and the second not operation of implement, please in conjunction with consulting Fig. 8, described first slippage duplicate gear 111 and 121 engagements of described first driven gear, described second shifting slide gear 131 and 141 engagements of described second driven gear, described the 3rd shifting slide gear 151 and the described first slippage duplicate gear 111 break away from.That is to say that the difference of described the third mode of operation and second kind of mode of operation is: described second implement is not worked under the third pattern, and vehicle only drives the first implement work when low speed.
In the present embodiment, the described first slippage duplicate gear 111 comprises fixedly connected external gear and internal gear, and under the high speed traveling pattern, the first slippage duplicate gear 111 is by its internal gear and 142 engagements of described the 3rd driven gear.Under the low speed work pattern, the first slippage duplicate gear 111 is by its external gear and 121 engagements of described first driven gear.
In the present embodiment, in the present embodiment, the described first implement drive output port 105 can directly be installed the belt pulley 4 that drives first implement, also can connect the transmission shaft that drives first implement.The described second implement drive output port 106 can directly be installed the belt pulley 5 that drives second implement, also can connect the transmission shaft that drives second implement.In Fig. 1-Fig. 5, all adopt belt pulley to drive first implement and second implement.And in Fig. 6-Fig. 8, all adopt transmission shaft to drive first implement and second implement.
In addition, described hydraulic-pressure pump 3 some little hydraulic-pressure pumps of can connecting.That is to say, on the described hydraulic-pressure pump delivery outlet 103 except the hydraulic-pressure pump that installation is used to walk, can also be installed in series is used for the little hydraulic-pressure pump of other equipment of vehicle (brush, oil cylinder etc.) again, thereby, satisfied the job requirements of other equipment of vehicle simultaneously.The little hydraulic-pressure pump of these series connection is not worked under first kind of mode of operation, second or the third mode of operation under work.
The present invention is used for the multioutlet transfer case of monomotor low speed walking operation special vehicle, and when first kind of mode of operation (high speed traveling pattern), transfer case directly outputs to back axle to the machine power from motor, the powered vehicle high speed driving.When second kind of mode of operation and the third mode of operation (all being low speed operations), the engine in situ setting also is fixed in the specified economic speed and (is generally 1500-1600rpm), engine speed is imported transfer case by transmission shaft, after inner speed ratio adjustment of transfer case and coupling, each delivery outlet of transfer case is exported the different fixing working speed of different work equipment such as its first implement that drives, hydraulic-pressure pump and second implement.That is to say, when the low speed operation, transfer case will be from a part of mechanical power transmission of motor to the first implement delivery outlet and/or the second implement delivery outlet etc., simultaneously another part machine power is used to take to back axle from the output of mechanical transmission delivery outlet again after hydraulic-pressure pump and the transmission of oil hydraulic motor speed change and rotates, exercise with powered vehicle low speed.Because the high-power power of first implement and second implement does not pass through hydraulic pressure transfer, therefore, has prevented the power loss that hydraulic transmission caused.And the low speed of vehicle is exercised, owing to need very little power (only accounting for the 10-15% of total output under sweeping machine or the sweeper local-speed mode of operation usually), even so use the energy loss that hydraulic pressure transfer produced also very little, and then can control the speed of vehicle after the Variable Control through hydraulic-pressure pump or oil hydraulic motor, realize the stable low speed walking of vehicle, and can realize stepless change.
In a word, the present invention only uses the original motor in chassis can realize the high speed traveling of vehicle and low speed walking job requirements simultaneously, the low speed of a motor vehicle and the high unmatched contradiction of implement rotating speed transmission when having solved the low speed operation.When satisfying vehicle low speed walking operation, the high output speed that is used to drive other implements also is provided, realize only using the former motor in chassis can finish the requirement of vehicle Multi-Tasking simultaneously, greatly reduced discarded discharging, the oil consumption of car load and motor; Improved the working efficiency of motor and car load.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. multioutlet transfer case that is used for monomotor low speed walking operation special vehicle, described transfer case is installed on the transmission shaft of chassis, described special vehicle is provided with first implement and second implement, it is characterized in that, described transfer case comprises: casing, described casing are provided with mechanical transmission inlet opening, oil hydraulic motor power inlet opening, hydraulic-pressure pump delivery outlet, mechanical transmission delivery outlet, the first implement drive output port and the second implement drive output port; Described transfer case comprises three kinds of mode of operations:
During first kind of mode of operation, the machine power that enters transfer case from described mechanical transmission inlet opening directly is transferred to described mechanical transmission delivery outlet;
During second kind of mode of operation, from the machine power that described mechanical transmission inlet opening enters transfer case, separated into two parts, first portion's machine power directly is transferred to described first implement drive output port and the described second implement drive output port respectively; The second portion machine power is after the hydraulic-pressure pump that described hydraulic-pressure pump delivery outlet driving directly is mounted thereon is transformed into hydraulic power, oil hydraulic motor through being installed on the described oil hydraulic motor power inlet opening is transformed into machine power with hydraulic power, behind described oil hydraulic motor power inlet opening input transfer case, again by described mechanical transmission delivery outlet output;
During the third mode of operation, from the machine power that described mechanical transmission inlet opening enters transfer case, separated into two parts, first portion's machine power directly is transferred to the described first implement drive output port; The second portion machine power is after the hydraulic-pressure pump that described hydraulic-pressure pump delivery outlet driving directly is mounted thereon is transformed into hydraulic power, oil hydraulic motor through being installed on the described oil hydraulic motor power inlet opening is transformed into machine power with hydraulic power, behind described oil hydraulic motor power inlet opening input transfer case, again by described mechanical transmission delivery outlet output.
2. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 1, it is characterized in that, be provided with input shaft in the described casing, output shaft, first implement and hydraulic-pressure pump transmission shaft, hydraulic motor output shaft, the second implement transmission shaft, the first shift fork inversion mechanism, the second shift fork inversion mechanism and the 3rd shift fork inversion mechanism, position, the corresponding described mechanical transmission inlet opening of described input shaft, the corresponding described mechanical transmission delivery outlet of described output shaft position, corresponding first implement drive output port position of one end of described first implement and hydraulic-pressure pump transmission shaft and the corresponding hydraulic-pressure pump delivery outlet of the other end position, position, the corresponding oil hydraulic motor power inlet opening of described hydraulic motor output shaft, the corresponding described second implement drive output port position of the described second implement transmission shaft, described input shaft is provided with the first slippage duplicate gear, described first implement and hydraulic-pressure pump transmission shaft are provided with first driven gear, described hydraulic motor output shaft is provided with second shifting slide gear, described output shaft is provided with second driven gear and the 3rd driven gear, described the 3rd driven gear is located at the medial extremity of described output shaft, and the described second implement transmission shaft is provided with the 3rd shifting slide gear; The described first slippage duplicate gear has the two kinds of working staties that are meshed with first driven gear engagement or with the 3rd driven gear under the effect of the first shift fork inversion mechanism; Described second shifting slide gear has with the engagement of second driven gear under the second shift fork inversion mechanism effect or does not mesh two kinds of working staties; Described the 3rd shifting slide gear has with the engagement of the first slippage duplicate gear under the 3rd shift fork inversion mechanism effect and breaks away from two states.
3. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 2, it is characterized in that, during first kind of mode of operation, described first slippage duplicate gear and the engagement of described the 3rd driven gear, described second shifting slide gear and described second driven gear break away from, and described the 3rd shifting slide gear and the described first slippage duplicate gear break away from; During second kind of mode of operation, described first slippage duplicate gear and the engagement of described first driven gear, described second shifting slide gear and the engagement of described second driven gear, described the 3rd shifting slide gear and the engagement of the described first slippage duplicate gear; During the third mode of operation, described first slippage duplicate gear and the engagement of described first driven gear, described second shifting slide gear and the engagement of described second driven gear, described the 3rd shifting slide gear and the described first slippage duplicate gear break away from.
4. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 3, it is characterized in that, has mutual interlocking gear between the described first shift fork inversion mechanism and the second shift fork inversion mechanism, the described first shift fork inversion mechanism comprises first push rod and first shift fork that is mutually permanently connected, the described second shift fork inversion mechanism comprises second push rod and second shift fork that is mutually permanently connected, described mutual interlocking gear comprises the pin of being located in the casing, second groove of being located at first groove of the described first push rod periphery and being located at the described second push rod periphery, described first groove, second groove mates with the end size of described pin respectively.
5. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 1, it is characterized in that, the described first implement drive output port is directly installed the belt pulley that drives first implement or is connected the transmission shaft that drives first implement.
6. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 1, it is characterized in that, the described second implement drive output port is directly installed the belt pulley that drives second implement or is connected the transmission shaft that drives second implement.
7. the multioutlet transfer case that is used for monomotor low speed walking operation special vehicle as claimed in claim 1 is characterized in that, described hydraulic-pressure pump and oil hydraulic motor have an employing variable format at least.
8. as any described multioutlet transfer case that is used for monomotor low speed walking operation special vehicle among the claim 1-7, it is characterized in that described hydraulic-pressure pump some little hydraulic-pressure pumps of connecting.
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| CN2010105427185A CN102003512B (en) | 2010-11-12 | 2010-11-12 | Multi-output-opening transfer case for special monomotor low-speed walking operation vehicles |
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| CN102493869A (en) * | 2011-11-14 | 2012-06-13 | 三一重工股份有限公司 | Power system and engineering machine |
| CN103847517A (en) * | 2014-03-04 | 2014-06-11 | 中国重汽集团湖北华威专用汽车有限公司 | Special vehicle for transmission of mechanical-hydraulic composite transfer case |
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| CN102493869A (en) * | 2011-11-14 | 2012-06-13 | 三一重工股份有限公司 | Power system and engineering machine |
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| CN104129291A (en) * | 2014-07-29 | 2014-11-05 | 柳州市宏大机械制造有限公司 | Tractor |
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| CN107021425A (en) * | 2017-03-16 | 2017-08-08 | 张俊强 | A kind of transmission device and dynamic compaction machinery for being used to drive elevator |
| CN108944435A (en) * | 2018-06-25 | 2018-12-07 | 长沙中联重科环境产业有限公司 | The composite transmission and its transmission control method of single-shot sweeper |
| CN108973672A (en) * | 2018-06-25 | 2018-12-11 | 长沙中联重科环境产业有限公司 | Single-shot sweeper |
| CN109114189A (en) * | 2018-11-01 | 2019-01-01 | 烟台海德专用汽车有限公司 | A kind of control method of power takeoff |
| CN109398076A (en) * | 2018-11-01 | 2019-03-01 | 烟台海德专用汽车有限公司 | One kind being used for monomotor special-purpose vehicle power takeoff |
| CN109291999A (en) * | 2018-11-01 | 2019-02-01 | 烟台海德专用汽车有限公司 | A kind of monomotor Special vehicle chassis drive system |
| CN109291998A (en) * | 2018-11-01 | 2019-02-01 | 烟台海德专用汽车有限公司 | A kind of monomotor Special vehicle chassis |
| CN112455224A (en) * | 2020-11-27 | 2021-03-09 | 三一汽车起重机械有限公司 | Transfer case, chassis assembly and crane |
| CN112455224B (en) * | 2020-11-27 | 2022-03-22 | 三一汽车起重机械有限公司 | Transfer case, chassis assembly and crane |
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Effective date of registration: 20191220 Address after: 201318 No. 290, Shenmei Road, Zhoupu Town, Pudong New Area, Shanghai Patentee after: Amachi Trading (Shanghai) Co., Ltd Address before: 201206 room 1503, No. 1122, Jinqiao Road, Pudong New Area, Shanghai Co-patentee before: Maoli Drive Technology (Shanghai) Co., Ltd. Patentee before: Zhou Jiangming |
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