CN216610864U - Chassis transmission system and sanitation car - Google Patents

Abstract

The utility model discloses a chassis transmission system and a sanitation vehicle, wherein the chassis transmission system comprises: the transfer case comprises a main input end, an auxiliary input end, a main output end and a first auxiliary output end; the main input end is connected with the first auxiliary output end; the main output end is connected with the main input end and the auxiliary input end through a first clutch, or is disconnected with the main input end and the auxiliary input end; the gearbox is connected with the main input end; the hydraulic motor is connected with the auxiliary input end; the rear axle is connected with the main output end; and the variable pump is connected with the first auxiliary output end to drive the hydraulic motor. The sanitation car includes: a chassis drive system as described above; and the chassis engine is connected with the gearbox of the chassis transmission system. The cleaning operation or non-cleaning operation during normal walking, cleaning operation during low-speed walking and cleaning operation during static can be realized by the single power source. The utility model has the advantages of high transmission rate, reduction of unnecessary energy consumption, simple integral structure and easy maintenance.

Description

Chassis transmission system and sanitation car

Technical Field

The application relates to the field of engineering sanitation vehicles, in particular to a chassis transmission system and a sanitation vehicle.

Background

At present, engineering sanitation vehicles are refitted on the basis of a universal automobile chassis, and most of domestic and foreign similar equipment adopts a special auxiliary engine as a scheme for increasing a power source, so that two engines are arranged on a refitted vehicle, the two engines run in the operation process, the chassis engine with higher power runs for a long time under a low-speed and low-power working condition, the power utilization rate is very low, the energy consumption efficiency of the whole machine is lower, and the installed power is greatly wasted; in addition, the two engines not only increase the use cost of the equipment, but also inevitably cause more consumption, exhaust emission and noise pollution caused by the simultaneous operation, and have more damage effect on the environment.

For this reason, a single-engine vehicle has been studied to change two conventional engines into one engine, in which both the top loading work and the vehicle running are driven by the chassis engine, namely, the transfer case is used for reforming the chassis transmission system to simultaneously meet the requirements of loading and chassis walking, the single-engine driving is realized, as a single-engine washing and sweeping vehicle disclosed in the Chinese patent ZL201420336169.X, the first output is to take out power through the full power of the engine to drive the working device, the second output is to take out power through the side of the gear box to drive the variable oil pump, the variable oil pump provides hydraulic power to drive the walking hydraulic motor, the hydraulic motor switches the walking power through the auxiliary gear box during the washing and sweeping operation to drive the rear wheel, however, such a structure is based on a large modification of the chassis traveling system, and is complex in structure, low in reliability, high in manufacturing cost, and not beneficial to popularization and use.

SUMMERY OF THE UTILITY MODEL

Therefore, a chassis transmission system and a sanitation vehicle are needed to be provided, so that the problems that in the prior art, a double-engine structure of the sanitation vehicle is large in energy consumption, low in efficiency and high in pollution, and a single engine is complex in structure, low in reliability and high in cost are solved.

To achieve the above object, the inventors provide a chassis transmission system comprising:

the transfer case comprises a main input end, an auxiliary input end, a main output end and a first auxiliary output end; the main input end is connected with the first auxiliary output end; the main output end is connected with the main input end and the auxiliary input end through a first clutch, or is disconnected with the main input end and the auxiliary input end;

the gearbox is connected with the main input end;

the hydraulic motor is connected with the auxiliary input end;

the rear axle is connected with the main output end;

and the variable pump is connected with the first auxiliary output end to drive the hydraulic motor.

In some embodiments, the transfer case further comprises:

the second auxiliary output end is connected with the main input end and is used for being connected with the fan;

and the third auxiliary output end is connected with the main input end and is used for being connected with the hydraulic pump.

In some embodiments, the transfer case further comprises:

and the two ends of the first auxiliary output shaft are respectively a first auxiliary output end and a second auxiliary output end, and the first auxiliary output shaft is connected or disconnected with the main input end through a second clutch.

In some embodiments, the transfer case further comprises:

and both ends of the second auxiliary output shaft are third auxiliary output ends.

In some embodiments, the second secondary output shaft is connected to or disconnected from the primary input through a third clutch.

In some embodiments, there are two hydraulic motors; the transfer case further includes:

and the two ends of the auxiliary input shaft are both auxiliary input ends, and the two hydraulic motors are respectively connected with the two auxiliary input ends.

In some embodiments, the first clutch comprises:

the main input gear is fixedly sleeved at the main input end;

the auxiliary input gear is fixedly sleeved at the auxiliary input end;

the main output gear is rotatably sleeved at the main output end and meshed with the auxiliary input gear;

the first clutch gear is slidably sleeved at the main output end so as to be meshed with the main input gear and separated from the main output gear, or be separated from the main input gear and meshed with the main output gear.

Different from the prior art, the chassis transmission system of the technical scheme can divide a single chassis power source (such as a chassis engine) into a plurality of power outputs through the transfer case, when the main output end is connected with the main input end through the first clutch and the auxiliary input end is disconnected, the rear axle is directly driven by the chassis power source after the speed of the chassis power source is regulated through the gearbox, and the chassis can realize high-speed walking or normal walking; when the main output end is disconnected with the main input end and the auxiliary input end through the first clutch and current is supplied to the variable pump, the variable pump conveys hydraulic oil to the hydraulic motor to drive the hydraulic motor, the rear axle is driven by the hydraulic motor, and the chassis can realize low-speed walking; when the main output end is disconnected with the main input end and the auxiliary input end through the first clutch and the variable pump is not supplied with current, the hydraulic motor does not work, the rear axle does not work, and the chassis is static. Therefore, various states of the chassis can be realized through the chassis transmission system, the cleaning operation device of the sanitation vehicle can be driven by increasing the output end of the transfer case, the cleaning operation during normal walking or high-speed walking, the cleaning operation during low-speed walking and the cleaning operation during static can be realized according to requirements, the transmission rate is high, unnecessary energy consumption is reduced, and the whole structure is simple and easy to maintain.

The inventor also provides a sanitation vehicle comprising:

the chassis transmission system as described in any one of the above;

and the chassis engine is connected with the gearbox of the chassis transmission system.

In some embodiments, further comprising:

and the fan is connected with the secondary output end of the second group.

In some embodiments, further comprising:

and the hydraulic pump is connected with the third auxiliary output end.

Different from the prior art, the sanitation vehicle in the technical scheme divides the chassis engine into a plurality of power outputs through the chassis transmission system, when the main output end is connected with the main input end through the first clutch and the auxiliary input end is disconnected, the rear axle is directly driven by the chassis power source after the speed is regulated through the gearbox, and the chassis can realize high-speed walking or normal walking; when the main output end is disconnected with the main input end and the auxiliary input end through the first clutch and current is supplied to the variable pump, the variable pump conveys hydraulic oil to the hydraulic motor to drive the hydraulic motor, the rear axle is driven by the hydraulic motor, and the chassis can realize low-speed walking; when the main output end is disconnected with the main input end and the auxiliary input end through the first clutch and the variable pump is not supplied with current, the hydraulic motor does not work, the rear axle does not work, and the chassis is static. Therefore, the chassis of the sanitation vehicle can realize various states, and the cleaning operation device of the sanitation vehicle can be driven by increasing the output end of the transfer case, so that the cleaning operation during normal walking or high-speed walking, the cleaning operation during low-speed walking and the cleaning operation during static can be realized according to requirements, the transmission rate is high, unnecessary energy consumption is reduced, and the whole structure is simple and easy to maintain.

The above description of the present invention is only an overview of the technical solutions of the present application, and in order to make the technical solutions of the present application more clearly understood by those skilled in the art, further, the present invention can be implemented according to the contents described in the text and the drawings of the present application, and in order to make the above objects, other objects, features, and advantages of the present application more easily understood, the following description will be made in conjunction with the detailed description of the present application and the drawings.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of particular embodiments of the present application, as well as others related thereto, and are not to be construed as limiting the application.

In the drawings of the specification:

FIG. 1 is an elevation view of an embodiment of the chassis drive system;

FIG. 2 is a rear view of the chassis drive system according to an embodiment;

FIG. 3 is a diagram illustrating the internal connections of the chassis drive system according to an embodiment;

FIG. 4 is a block diagram of a sanitation truck according to an exemplary embodiment;

fig. 5 is a transmission connection diagram of the sanitation vehicle according to the embodiment.

The reference numerals referred to in the above figures are explained below:

1. a transfer case;

10. a main input shaft; 100. a primary input; 101. a main input gear;

11. a secondary input shaft; 110. a secondary input; 111. a secondary input gear;

12. a main output shaft; 120. a main output end; 121. a first clutch gear; 122. a main output gear;

13. a first secondary output shaft; 130. a first secondary output terminal; 131. a second secondary output terminal; 132. a second clutch gear; 133. a first secondary output gear;

14. a second secondary output shaft; 140. a third pair of output terminals; 141. a third clutch gear; 142. a second pair of output gears;

15. a transition shaft; 150. a transition gear;

16. a housing;

3. a gearbox; 30. a front drive shaft;

4. a rear axle; 40. a rear drive shaft;

5. a hydraulic motor;

6. a variable displacement pump;

7. a fan; 70. a fan transmission shaft;

8. a hydraulic pump.

Detailed Description

In order to explain in detail possible application scenarios, technical principles, practical embodiments, and the like of the present application, the following detailed description is given with reference to the accompanying drawings in conjunction with the listed embodiments. The embodiments described herein are merely for more clearly illustrating the technical solutions of the present application, and therefore, the embodiments are only used as examples, and the scope of the present application is not limited thereby.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or related to other embodiments specifically defined. In principle, in the present application, the technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution as long as there is no technical contradiction or conflict.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of relational terms herein is intended only to describe particular embodiments and is not intended to limit the present application.

In the description of the present application, the term "and/or" is a expression for describing a logical relationship between objects, meaning that three relationships may exist, for example a and/or B, meaning: there are three cases of A, B, and both A and B. In addition, the character "/" herein generally indicates that the former and latter associated objects are in a logical relationship of "or".

In this application, terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Without further limitation, in this application, the use of "including," "comprising," "having," or other similar expressions in phrases and expressions of "including," "comprising," or "having," is intended to cover a non-exclusive inclusion, and such expressions do not exclude the presence of additional elements in a process, method, or article that includes the recited elements, such that a process, method, or article that includes a list of elements may include not only those elements but also other elements not expressly listed or inherent to such process, method, or article.

As is understood in the examination of the guidelines, the terms "greater than", "less than", "more than" and the like in this application are to be understood as excluding the number; the expressions "above", "below", "within" and the like are understood to include the present numbers. In addition, in the description of the embodiments of the present application, "a plurality" means two or more (including two), and expressions related to "a plurality" similar thereto are also understood, for example, "a plurality of groups", "a plurality of times", and the like, unless specifically defined otherwise.

In the description of the embodiments of the present application, spatially relative expressions such as "central," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used, and the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the specific embodiments or drawings and are only for convenience of describing the specific embodiments of the present application or for the convenience of the reader, and do not indicate or imply that the device or component in question must have a specific position, a specific orientation, or be constructed or operated in a specific orientation and therefore should not be construed as limiting the embodiments of the present application.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and "disposed" used in the description of the embodiments of the present application are to be construed broadly. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or a communication connection; they may be directly connected or indirectly connected through an intermediate; which may be communication within two elements or an interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those skilled in the art to which the present application pertains in accordance with specific situations.

The utility model provides a chassis transmission system which is used for transmitting power, is mainly applied to an automobile chassis, is particularly suitable for a sanitation vehicle, can provide power for a chassis moving and cleaning device by a single power source, can realize cleaning operation or non-cleaning operation during normal walking, cleaning operation during low-speed walking and cleaning operation during standing by the single power source, has high transmission rate, reduces unnecessary energy consumption, and has a simple integral structure and easy maintenance.

In a specific embodiment, the chassis transmission system comprises a transfer case 1, a gearbox 3, a hydraulic motor 5, a rear axle 4 and a variable pump 6, wherein the transfer case 1 is a device for distributing the power of a power source, namely, the power source of the chassis is divided into a plurality of power outputs, so that the purpose that a single power source provides power for a plurality of mechanisms is realized; the gearbox 3 is used for adjusting the output rotating speed of the power source so as to adjust the output rotating speed of the power source to a proper rotating speed and avoid the damage of a mechanism connected with the power source due to overlarge rotating speed; the hydraulic motor 5 is another driving mechanism for driving the rear axle 4 to operate, and a power source of the hydraulic motor is also derived from a chassis power source (such as a chassis engine), so that the low-speed walking of the chassis can be realized; the variable displacement pump 6 is used for supplying hydraulic oil to the hydraulic motor 5 when power is supplied thereto; the rear axle 4 is a rear drive shaft component of the vehicle power transmission, consists of two half-bridges and can implement half-bridge differential motion. It is also a device for supporting the wheels and connecting the rear wheels. The driving axle in the scheme has the functions of driving, speed reducing and differential speed besides the bearing function.

Referring to fig. 1 and 2, the transfer case 1 includes a primary input 100, a secondary input 110, a primary output 120, and a first secondary output 130. The primary input 100 is configured to be connected to a power source, and the power source may be transmitted to the primary output 120 and the first secondary output 130, specifically, the gearbox 3 is connected to the primary input 100, and the chassis power source is connected to the primary input 100 through the gearbox 3. The first auxiliary output 130 is drivingly connected to the main input 100, and the first auxiliary output 130 is adapted to be connected to the variable displacement pump 6 to transfer power to the variable displacement pump 6, so that the variable displacement pump 6 is connected to the first auxiliary output 130 to drive the hydraulic motor 5.

The secondary input 110 is adapted to be connected to the hydraulic motor 5, and thus the hydraulic motor 5 is connected to the secondary input 110. The main output 120 is adapted to be connected to the rear axle 4, whereby the rear axle 4 is connected to the main output 120. The main output 120 is connected to the main input 100 and the auxiliary input 110 through a first clutch, or disconnected from the main input 100 and the auxiliary input 110; when the primary output 120 is connected to the primary input 100 and the secondary input 110 is disconnected by the first clutch, the primary output 120 receives power directly from the primary input 100, and when the primary output 120 is disconnected from the primary input 100 and the secondary input 110 by the first clutch, the primary output 120 receives power from the secondary input 110.

The transfer case 1 can divide a single chassis power source (such as a chassis engine) into a plurality of power outputs, when the main output end 120 is connected with the main input end 100 through the first clutch and the auxiliary input end 110 is disconnected, the rear axle 4 is directly driven by the chassis power source after the speed is regulated through the gearbox 3, and the chassis can realize high-speed walking or normal walking; when the main output end 120 is disconnected from the main input end 100 through the first clutch, the auxiliary input end 110 is connected, and current is supplied to the variable pump 6, the variable pump 6 conveys hydraulic oil to the hydraulic motor 5 to drive the hydraulic motor 5, the rear axle 4 is driven by the hydraulic motor 5, and the chassis can realize low-speed walking; when the primary output terminal 120 is disconnected from the primary input terminal 100 and the secondary input terminal 110 via the first clutch and no current is supplied to the variable displacement pump 6, the hydraulic motor 5 does not operate, the rear axle 4 does not operate, and the chassis is stationary. Therefore, the chassis transmission system can realize multiple states of the chassis, namely normal walking or high-speed walking, low-speed walking and static walking, has high transmission rate, reduces unnecessary energy consumption, and has simple and easy maintenance of the whole structure.

The requirement of working while the vehicle is walking can be met, and the lowest power loss can be realized; through the reasonable power output design and the internal structure design of the transfer case 1, the advantages of effectively achieving energy conservation and emission reduction, being green and environment-friendly, improving the stability of equipment, reducing the failure rate of the equipment and the like are achieved. The vehicle can not walk under the condition that the equipment normally runs, and the function of normal rotation of the equipment can also be realized; on the premise of meeting the requirement of vehicle walking, the requirement of multi-output-port power can be met, and meanwhile, the multifunctional requirement of the vehicle is met.

In some embodiments, the transfer case 1 further comprises a second secondary output 131, a third secondary output 140; by arranging the second auxiliary output end 131 and the third auxiliary output end 140, the power of the power source can be further distributed, specifically, the second auxiliary output end 131 is connected with the main input end 100 and is used for being connected with the fan 7, and the power source can drive other mechanisms and can also drive the fan 7; the third secondary output 140 is connected to the primary input 100 for connection to the hydraulic pump 8, and the power source drives other mechanisms and also drives the hydraulic pump 8. If the chassis transmission system is used for a sanitation vehicle, the fan 7 and the hydraulic pump 8 are both driving mechanisms of a cleaning operation device, namely the chassis transmission system realizes that a single power source drives the chassis to travel and the cleaning operation device to operate, so that cleaning operation during normal traveling or high-speed traveling, cleaning operation during low-speed traveling and cleaning operation during static can be realized according to requirements, the transmission rate is high, unnecessary energy consumption is reduced, the whole structure is simple, compact and easy to maintain, tail gas emission is reduced, and the device is energy-saving and environment-friendly; all power sources are from the transfer case 1, and power take-off is not required to be carried out through a newly-added full-power take-off device or PTO power take-off device, so that the failure rate can be reduced, the cost can be reduced, the existing power take-off device carries out power take-off through the PTO power take-off device, the failure rate of the power take-off device is extremely high, and the stability of equipment is influenced (the torque provided by the PTO power take-off device is effective, and long-term supply cannot be realized).

In order to enable the second secondary output 131 not to output power when the chassis is walking, in some embodiments, the second secondary output 131 is connected or disconnected with the main input 100 through a second clutch, and when the second secondary output 131 is connected with the main input 100 through the second clutch, the second secondary output 131 can output power while the chassis is walking; when the second secondary output 131 is disconnected from the primary input 100 by the second clutch, the second secondary output 131 may not output power while the chassis is walking.

In order to enable the third auxiliary output end 140 not to output power when the chassis is walking, in some embodiments, the third auxiliary output end 140 is connected or disconnected with the main input end 100 through a third clutch, and when the third auxiliary output end 140 is connected with the main input end 100 through the third clutch, the third auxiliary output end 140 can output power while the chassis is walking; when the third auxiliary output end 140 is disconnected from the main input end 100 by the third clutch, the third auxiliary output end 140 may not output power while the chassis is running.

Through further setting up second clutch, third clutch, can realize the cleaning operation or not cleaning operation when normal walking or high-speed walking, cleaning operation when low-speed walking, cleaning operation when static according to the demand, make the scope of application wider, cover all work demands almost, when being particularly useful for the demand of various different special environment, the advantage of this transmission scheme more stands out.

In some embodiments, the transfer case 1 further includes a first secondary output shaft 13, the two ends of the first secondary output shaft 13 are a first secondary output end 130 and a second secondary output end 131, respectively, and the first secondary output shaft 13 is connected to or disconnected from the main input end 100 through the second clutch, when the first secondary output shaft 13 is connected to the main input end 100 through the second clutch, both the first secondary output end 130 and the second secondary output end 131 can output power, that is, the first secondary output end 130 outputs power to the variable pump 6, but whether the variable pump 6 delivers hydraulic oil to the hydraulic motor 5 depends on whether the variable pump 6 is supplied with current; the second secondary output end 131 outputs power to the fan 7, and the fan 7 performs operation, namely the sanitation vehicle can perform suction operation. When the first auxiliary output shaft 13 is disconnected from the main input end 100 through the second clutch, the first auxiliary output end 130 and the second auxiliary output end 131 do not output power, and the variable displacement pump 6 and the fan 7 do not work.

In the double-water-pump driving mode of the existing road pollution removing vehicle (sanitation vehicle), a front water pump is used for taking power through a PTO power takeoff, a rear water pump is used for taking power through a variable pump 6 on a transfer case 1, and as the front water pump needs to work stably for a long time through the PTO power takeoff, the torque of the power takeoff is effective, and the power takeoff cannot be used stably for a long time, the failure rate of the power takeoff is high; this scheme can adopt the drive of two water pumps all to carry out the power takeoff through transfer case 1, can be with the fault rate that reduces PTO, through reasonable design, the power source of water pump before making its supply that can be long-term. Therefore, in some embodiments, the transfer case 1 further includes a second auxiliary output shaft 14, and both ends of the second auxiliary output shaft 14 are third auxiliary output ends 140, that is, two third auxiliary output ends 140 are provided, so that power sources of the double water pumps can be provided through the transfer case 1; the second secondary output shaft 14 is connected to or disconnected from the primary input 100 by the third clutch.

When the first secondary output shaft 13 is connected to the main input 100 through the second clutch, both the first secondary output 130 and the second secondary output 131 can output power, i.e. the first secondary output 130 will output power to the variable pump 6, but whether the variable pump 6 is delivering hydraulic oil to the hydraulic motor 5 depends on whether current is given to the variable pump 6; the second secondary output end 131 outputs power to the fan 7, and the fan 7 performs operation, namely the sanitation vehicle can perform suction operation. When the first auxiliary output shaft 13 is disconnected from the main input end 100 through the second clutch, the first auxiliary output end 130 and the second auxiliary output end 131 do not output power, and the variable displacement pump 6 and the fan 7 do not work.

In some embodiments, there are two hydraulic motors 5; the transfer case 1 further comprises an auxiliary input shaft 11, two ends of the auxiliary input shaft 11 are both auxiliary input ends 110, and the two hydraulic motors 5 are respectively connected with the two auxiliary input ends 110, so that the output power of the hydraulic motors 5 can be output through the auxiliary input ends 110.

In some embodiments, the transfer case 1 further includes a main input shaft 10, a main output shaft 12; one end of the main input shaft 10 is a main input end 100, and one end of the main output shaft 12 is a main output end 120; the main input shaft 10 and the main output shaft 12 are on the same axis.

In some embodiments, the transfer case 1 further includes a transition shaft 15, the main input shaft 10 is in transmission connection with the transition shaft 15, the transition shaft 15 is in transmission connection with the first auxiliary output shaft 13, and both ends of the transition shaft 15 can be used as output ends when needed, and can be changed according to actual working conditions.

The transfer case 1 further comprises a shell 16, the main input shaft 10, the main output shaft 12, the first auxiliary output shaft 13, the second auxiliary output shaft 14, the auxiliary input shaft 11 and the transition shaft 15 are all axially and rotatably arranged in the shell 16, the main input shaft 10 and the main output shaft 12 are located on the same axis, the first auxiliary output shaft 13, the second auxiliary output shaft 14, the auxiliary input shaft 11 and the transition shaft 15 are all arranged in parallel with the axis of the main input shaft 10, one end (namely the main input end 100) of the main input shaft 10 penetrates outside the shell 16, one end (namely the main output end 120) of the main output shaft 12 penetrates outside the shell 16, both ends of the first secondary output shaft 13 (i.e., the first secondary output end 130 and the second secondary output end 131) penetrate through the housing 16, both ends of the second secondary output shaft 14 (i.e., the two third secondary output ends 140) penetrate through the housing 16, and both ends of the secondary input end 110 (i.e., the two secondary input ends 110) penetrate through the housing 16.

In some embodiments, the first clutch comprises:

a main input gear 101 fixedly sleeved at the main input end 100 (i.e., the main input shaft 10);

a secondary input gear 111 fixedly sleeved at the secondary input end 110 (i.e., the secondary input shaft 11);

a main output gear 122 rotatably sleeved at the main output end 120 (i.e. the main output shaft 12) and meshed with the auxiliary input gear 111;

a first clutch gear 121 slidably fitted to the main output end 120 (i.e., the main output shaft 12) to be engaged with the main input gear 101 and disengaged from the main output gear 122, or disengaged from the main input gear 101 and engaged with the main output gear 122;

a first shift fork for shifting the first clutch gear 121;

the first shifting fork driving mechanism is used for driving the first shifting fork to move so as to shift the first clutch gear 121, and can be an air cylinder or an oil cylinder.

The main output gear 122 and the auxiliary input gear 111 are always in a meshed state, when the first clutch gear 121 is driven by the first fork and the first fork driving mechanism to move to be meshed with the main input gear 101 and separate from the main output gear 122, the main input shaft 10 and the main output shaft 12 are in a connected state, when the main input shaft 10 inputs power, the main output shaft 12 can output power outwards, and the auxiliary input shaft 11 does not input power to the main output shaft 12; when the first clutch gear 121 is disengaged from the main input gear 101 and the main output gear 122 is engaged, the main output gear 122 is fixed integrally with the main output shaft 12, and the sub input shaft 11 can transmit power to the main output shaft 12 through the sub input gear 111 and the main output gear 122, while the main input shaft 10 does not directly input power to the main output shaft 12.

The first auxiliary output end 130 and the second auxiliary output end 131 may be independent from each other, the first auxiliary output end 130 may be always in transmission connection with the main input end 100, and the second auxiliary output end 131 may be in transmission connection with the main input end 100 through a second clutch, so as to realize connection or disconnection with the main input end 100; the first auxiliary output end 130 and the second auxiliary output end 131 may be two ends of the first auxiliary output shaft 13, and in this case, the first auxiliary output shaft 13 is connected to the main input end 100 through the second clutch to realize connection or disconnection with the main input end 100.

The second clutch includes:

a first auxiliary output gear 133 rotatably sleeved at the first auxiliary output shaft 13 and meshed with the main input gear 101 (if the transition shaft 15 is provided, the transition shaft 15 is sleeved at the transition gear 150, at this time, the first auxiliary output shaft 13 is meshed with the transition gear 150, and the transition gear 150 is meshed with the main input gear 101);

the second clutch gear 132 is slidably sleeved at the first auxiliary output shaft 13 to be meshed with or separated from the first auxiliary output gear 133;

a second fork for shifting the second clutch gear 132;

and the second shifting fork driving mechanism is used for driving the second shifting fork to move so as to shift the second clutch gear 132, and can be an air cylinder or an oil cylinder.

The main input gear 101 and the first auxiliary output gear 133 are always in a meshed state, when the second clutch gear 132 is meshed with the first auxiliary output gear 133, the first auxiliary output gear 133 is integrally connected with the first auxiliary output shaft 13, and the main input shaft 10 can transmit power to the first auxiliary output shaft 13 through the main input gear 101 and the first auxiliary output gear 133; when the second clutch gear 132 is disengaged from the first counter output gear 133, the first counter output gear 133 is rotatable with respect to the first counter output shaft 13, and the main input shaft 10 does not input power to the first counter output shaft 13.

The third clutch includes:

a second auxiliary output gear 142 rotatably sleeved at the second auxiliary output shaft 14 and meshed with the main input gear 101;

a third clutch gear 141 slidably fitted at the second sub-output shaft 14 to be engaged with or disengaged from the second sub-output gear 142;

a third fork for shifting the third clutch gear 141;

and the third shifting fork driving mechanism is used for driving the third shifting fork to move so as to shift the third clutch gear 141, and can be an air cylinder or an oil cylinder.

The main input gear 101 and the second sub output gear 142 are always in a meshed state, and when the third clutch gear 141 and the second sub output gear 142 are meshed, the second sub output gear 142 is in a state of being integrally connected to the second sub output shaft 14, and the main input shaft 10 can transmit power to the second sub output shaft 14 through the main input gear 101 and the second sub output gear 142; when the third clutch gear 141 and the second sub-output gear 142 are disengaged, the second sub-output gear 142 is in a state of being rotatable with respect to the second sub-output shaft 14, and the main input shaft 10 does not input power to the second sub-output shaft 14.

Referring to fig. 4, the present invention further provides a sanitation vehicle, including any one of the above chassis transmission system and the chassis engine; the chassis engine is connected with a gearbox 3 of the chassis transmission system, specifically, the output end of the chassis engine is connected with the input end of the gearbox 3, and the input end of the gearbox 3 is connected with the main input end 100 of the transfer case 1 through a front transmission shaft 30; the main output 120 of the transfer case 1 is connected to the rear axle 4 via a rear drive shaft 40.

The transfer case 1 divides a single chassis engine into a plurality of power outputs, when the main output end 120 is connected with the main input end 100 through the first clutch and the auxiliary input end 110 is disconnected, the rear axle 4 is directly driven by the chassis engine after the speed of the chassis engine is regulated through the gearbox 3, and the chassis can realize high-speed walking or normal walking; when the main output end 120 is disconnected from the main input end 100 through the first clutch, the auxiliary input end 110 is connected, and current is supplied to the variable pump 6, the variable pump 6 conveys hydraulic oil to the hydraulic motor 5 to drive the hydraulic motor 5, the rear axle 4 is driven by the hydraulic motor 5, and the chassis can realize low-speed walking; when the primary output terminal 120 is disconnected from the primary input terminal 100 and the secondary input terminal 110 via the first clutch and no current is supplied to the variable displacement pump 6, the hydraulic motor 5 does not operate, the rear axle 4 does not operate, and the chassis is stationary. Thus, multiple states of the chassis may be achieved through the chassis drive system.

In some embodiments, the fan 7 is further included and is connected to the second secondary output end 131, specifically, the second secondary output end 131 is provided with a flange, and the input end of the fan 7 is connected to the flange at the second secondary output end 131 through the fan transmission shaft 70.

In some embodiments, the hydraulic pump 8 is further included, an input end of the hydraulic pump 8 is connected to the third auxiliary output end 140, the hydraulic pump 8 is connected to the dual-pump motor to power the dual-pump motor, and the dual-pump motor powers the dual-pump motor.

Therefore, the cleaning operation device for driving the sanitation vehicle by adding the output end of the transfer case 1 can realize cleaning operation or non-cleaning operation during normal walking or high-speed walking, cleaning operation during low-speed walking and cleaning operation during standing according to requirements, has high transmission rate, reduces unnecessary energy consumption, and has a simple and easy-to-maintain integral structure.

Referring to fig. 3 and 5, the sanitation vehicle can achieve the following operation modes through the chassis transmission system:

the first working mode is as follows: the first clutch gear 121 moves leftwards, the first clutch gear 121 is meshed with the main input gear 101, the first clutch gear 121 is meshed with the main output shaft 12, and when the front transmission shaft 30 operates, the main input shaft 10 and the main output shaft 12 are driven to operate, so that power is output by the rear transmission shaft 40, and normal running of the vehicle under the driving of a chassis engine can be realized directly without cleaning;

the second working mode is as follows: the first clutch gear 121 moves to the left, the first clutch gear 121 engages with the main input gear 101, the first clutch gear 121 engages with the main output shaft 12, the second clutch gear 132 moves to the left, the second clutch gear 132 engages with the first sub-output gear 133, the third clutch gear 141 moves to the right, and the third clutch gear 141 disengages from the second output gear. When the front transmission shaft 30 runs, the main input shaft 10 is driven to rotate, the main input gear 101 drives the transition gear 150 to rotate, the first auxiliary output gear 133 drives the second clutch gear 132 to rotate through the gear rotation of the transition shaft 15, so that the first auxiliary output shaft 13 rotates, the flange plate rotates, the fan transmission shaft 70 is driven, and the fan 7 starts to work; when the first auxiliary output shaft 13 rotates, the variable pump 6 is driven to start to rotate, because the variable pump 6 idles under the condition of no current, the hydraulic motor 5 is not supplied with hydraulic oil because the variable pump 6 does not rotate, and thus, under the condition that the vehicle runs at high speed, a special device (a fan 7) can be normally driven to work, and the rapid suction work can be realized;

the third mode of operation is: the first clutch gear 121 moves leftward, the first clutch gear 121 engages with the main input gear 101, the first clutch gear 121 engages with the main output shaft 12, the second clutch gear 132 moves leftward, the second clutch gear 132 engages with the first sub-output gear 133, the third clutch gear 141 moves leftward, and the third clutch gear 141 engages with the second sub-output gear 142. When the front transmission shaft 30 operates, the main input shaft 10 is driven to rotate, the main input gear 101 drives the transition gear 150 to rotate, the first auxiliary output gear 133 drives the second clutch gear 132 to rotate through the rotation of the transition gear 150, so that the first auxiliary output shaft 13 rotates, the flange plate rotates, the fan transmission shaft 70 is driven, and the fan 7 starts to operate; when the front transmission shaft 30 operates, the main input shaft 10 is driven to rotate, the main input gear 101 drives the third clutch gear 141 to rotate, so that the second auxiliary output shaft 14 rotates, the hydraulic pump 8 is driven to start working, the hydraulic pump 8 can provide a power source for a water pump motor according to the actual working condition requirement, and the water pump is driven to start working (according to the working condition requirement, the working condition that a single water pump or a double water pump works simultaneously can be realized); therefore, under the condition that the vehicle runs at a high speed, special devices (a water pump, a fan 7 and the like) can be normally driven to work, and the requirements of various working conditions such as quick washing and sweeping, suction and the like are met;

the fourth working mode is as follows: the first clutch gear 121 moves to the right, the first clutch gear 121 is disengaged from the main input gear 101, the first clutch gear 121 is engaged with the main output gear 122, and the main output gear 122 is engaged with the auxiliary input gear 111; the second clutch gear 132 moves to the left, and the second clutch gear 132 is meshed with the first auxiliary output gear 133; the third clutch gear 141 moves to the left, and the third clutch gear 141 meshes with the second sub-output gear 142; when the front transmission shaft 30 operates, the main input shaft 10 is driven to rotate, the main input gear 101 drives the transition gear 150 to rotate, the first auxiliary output gear 133 drives the second clutch gear 132 to rotate through the rotation of the transition gear 150, so that the first auxiliary output shaft 13 rotates, the flange plate rotates, the fan transmission shaft 70 is driven, and the fan 7 starts to operate; when the first auxiliary output shaft 13 rotates, the variable pump 6 is driven to start rotating, because the variable pump 6 is the variable pump 6, under the condition of supplying current, the variable pump 6 starts to operate, the variable pump 6 supplies hydraulic oil to the hydraulic motor 5, and the hydraulic motor 5 starts to operate; when the front transmission shaft 30 operates, the main input shaft 10 is driven to rotate, the main input gear 101 drives the third clutch gear 141 to rotate, so that the second auxiliary output shaft 14 rotates, the hydraulic pump 8 is driven to start working, and the hydraulic pump 8 can provide a power source for a water pump motor according to the actual working condition requirement so as to drive the water pump to start working (according to the working condition requirement, the working condition that a single water pump or a double water pump works simultaneously can be realized); therefore, the special devices (a water pump, a fan 7 and the like) can be normally driven to work under the condition that the vehicle runs at a low speed, and the requirements of various working conditions such as deep cleaning, pumping and the like are met;

the fifth working mode is as follows: the first clutch gear 121 moves to the right, the first clutch gear 121 is disengaged from the main input gear 101, the first clutch gear 121 is engaged with the main output gear 122, and the main output gear 122 is engaged with the auxiliary input gear 111; the second clutch gear 132 moves to the left, and the second clutch gear 132 is meshed with the first auxiliary output gear 133; the third clutch gear 141 moves to the left, and the third clutch gear 141 meshes with the second sub-output gear 142; when the front transmission shaft 30 operates, the main input shaft 10 is driven to rotate, the main input gear 101 drives the transition gear 150 to rotate, the first auxiliary output gear 133 drives the second clutch gear 132 to rotate through the rotation of the transition gear 150, so that the first auxiliary output shaft 13 rotates, the flange plate rotates, the fan transmission shaft 70 is driven, and the fan 7 starts to operate; when the first auxiliary output shaft 13 rotates, the variable pump 6 is driven to start rotating, because the variable pump 6 is used, under the condition of no current supply, the variable pump 6 idles, the variable pump 6 does not supply hydraulic oil to the hydraulic motor 5, the hydraulic motor 5 does not work, and the vehicle is in a static state; when current transmission shaft 30 operates, it rotates to drive main input shaft 10, main input gear 101 drives third clutch gear 141 and rotates, thereby make the vice output shaft 14 of second rotate, thereby drive hydraulic pump 8 and begin work, hydraulic pump 8 can be according to the demand of the operating mode of reality, provide the power supply to the water pump motor, and drive the water pump and begin work (according to the demand of operating mode, can realize the operating mode of single water pump or two water pump simultaneous workings), can realize under the quiescent condition of vehicle like this, normal drive isolated plant (fan 7, the pneumatic pick, suction tube swing arm hydro-cylinder, degree of depth cleaning device etc.) carries out work.

The variable pump 6 is a closed pump, and the traveling system of the sanitation truck is a closed system, so that the closed pump can be in an electric control mode, a hydraulic control mode or a mechanical control mode, and the like.

The hydraulic pump 8 may be a variable pump or a fixed displacement pump, and may be connected to each branch system of the sanitation truck, such as a water pump motor, each cylinder for assisting actions, other action motors, a separate heat dissipation loop, and the like.

Finally, it should be noted that, although the above embodiments have been described in the text and drawings of the present application, the scope of the patent protection of the present application is not limited thereby. All technical solutions which are generated by replacing or modifying the equivalent structure or the equivalent flow according to the contents described in the text and the drawings of the present application, and which are directly or indirectly implemented in other related technical fields, are included in the scope of protection of the present application.

Claims (10)

1. A chassis drive system, comprising:

the transfer case comprises a main input end, an auxiliary input end, a main output end and a first auxiliary output end; the main input end is connected with the first auxiliary output end; the main output end is connected with the main input end and the auxiliary input end through a first clutch, or is disconnected with the main input end and the auxiliary input end;

the gearbox is connected with the main input end;

the hydraulic motor is connected with the auxiliary input end;

the rear axle is connected with the main output end;

and the variable pump is connected with the first auxiliary output end to drive the hydraulic motor.

2. The chassis drive system of claim 1, wherein the transfer case further includes:

the second auxiliary output end is connected with the main input end and is used for being connected with the fan;

and the third auxiliary output end is connected with the main input end and is used for being connected with the hydraulic pump.

3. The chassis drive system of claim 2, wherein the transfer case further includes:

and the two ends of the first auxiliary output shaft are respectively a first auxiliary output end and a second auxiliary output end, and the first auxiliary output shaft is connected or disconnected with the main input end through a second clutch.

4. The chassis drive system of claim 2, wherein the transfer case further includes:

and both ends of the second auxiliary output shaft are third auxiliary output ends.

5. A chassis transmission system according to claim 4, wherein the second secondary output shaft is connected to or disconnected from the primary input through a third clutch.

6. The undercarriage transmission system of claim 2 wherein there are two of said hydraulic motors; the transfer case further includes:

and the two ends of the auxiliary input shaft are both auxiliary input ends, and the two hydraulic motors are respectively connected with the two auxiliary input ends.

7. The chassis drive system according to claim 2, wherein the first clutch comprises:

the main input gear is fixedly sleeved at the main input end;

the auxiliary input gear is fixedly sleeved at the auxiliary input end;

the main output gear is rotatably sleeved at the main output end and meshed with the auxiliary input gear;

the first clutch gear is slidably sleeved at the main output end so as to be meshed with the main input gear and separated from the main output gear, or be separated from the main input gear and meshed with the main output gear.

8. A sanitation vehicle, comprising:

the chassis drive system of any one of claims 2-7;

and the chassis engine is connected with the gearbox of the chassis transmission system.

9. The sanitation vehicle of claim 8, further comprising:

and the fan is connected with the secondary output end of the second group.

10. The sanitation vehicle of claim 8, further comprising:

and the hydraulic pump is connected with the third auxiliary output end.

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