Efficient energy-saving hydraulic system of kitchen garbage truck
阅读说明：本技术 厨余垃圾车的高效节能液压系统 (Efficient energy-saving hydraulic system of kitchen garbage truck ) 是由 刘林福 黄秋芳 张水田根 于 2020-08-14 设计创作，主要内容包括：本发明公开了厨余垃圾车的高效节能液压系统,包括：液压油箱；第一泵和第二泵；多路阀；和多路阀油路连接的盖板油缸、提升桶夹持油缸、提升桶升降油缸、提升桶翻转油缸、推板油缸、后门启闭油缸等,本方案通过第一泵控制洗车枪马达、盖板油缸、提升桶夹持油缸、提升桶升降油缸和提升桶翻转油缸动作；第二泵控制钟摆油缸动作；当提升机构与钟摆机构进行复合动作时,两个单泵分别独立控制提升桶油缸和钟摆油缸,不会相互干扰；当推板或者后门单独动作时,两个单泵合流,实现快速高效的动作,该套液压系统可以实现任意指定动作的双泵合流,且同样地可以对任意指定动作单泵流量输出,可以做到双泵、三种速度的流量匹配,从而做到系统高效节能。(The invention discloses a high-efficiency energy-saving hydraulic system of a kitchen garbage truck, which comprises: a hydraulic oil tank; a first pump and a second pump; a multi-way valve; the car washing machine comprises a cover plate oil cylinder, a lifting bucket clamping oil cylinder, a lifting bucket lifting oil cylinder, a lifting bucket overturning oil cylinder, a push plate oil cylinder, a rear door opening and closing oil cylinder and the like, wherein the cover plate oil cylinder, the lifting bucket clamping oil cylinder, the lifting bucket lifting oil cylinder and the lifting bucket overturning oil cylinder are connected with a multi-way valve oil way; the second pump controls the pendulum oil cylinder to act; when the lifting mechanism and the pendulum mechanism perform composite action, the two single pumps respectively and independently control the lifting barrel oil cylinder and the pendulum oil cylinder, so that mutual interference is avoided; when the push plate or the back door independently acts, the two single pumps are combined to realize rapid and efficient action, the set of hydraulic system can realize double-pump combination of any appointed action, and can output the flow of the single pump with any appointed action in the same way, and the flow matching of the double pumps and three speeds can be realized, so that the system is efficient and energy-saving.)
1. Energy-efficient hydraulic system of rubbish from cooking car, its characterized in that: it includes:
the hydraulic oil tank is used for providing hydraulic oil;
the input end of the first pump is connected with a hydraulic oil tank pipeline;
the input end of the second pump is connected with a hydraulic oil tank pipeline;
the multi-way valve comprises a control valve I, a control valve II, a control valve III, a control valve IV, a control valve V, a control valve VI and a control valve VII, wherein the output end of a first pump is sequentially connected with oil inlets P1 of the control valve I, the control valve II, the control valve III and the control valve IV through oil inlet pipelines, the output end of a second pump is sequentially connected with oil inlets P2 of the control valve V, the control valve VI and the control valve VII through oil inlet pipelines, the control valve V, the control valve VI and the control valve VII are provided with oil return pipelines a and the oil return pipelines a are connected to a hydraulic oil tank, the control valve I, the control valve II, the control valve III and the control valve IV are provided with oil return pipelines b, and the oil return pipelines b form two branches and are respectively connected to the oil inlet pipelines of the control valve VI and the control valve VII;
the vehicle washing gun motor is provided with two connecting ports and is respectively connected with the oil port A1 and the oil port B1 of the control valve I;
a rodless cavity of the cover plate oil cylinder is connected with an oil port A2 of the control valve II, and a rod cavity of the cover plate oil cylinder is connected with an oil port B2 of the control valve II;
a rodless cavity of the lifting barrel clamping oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel clamping oil cylinder is connected with an oil port B3 of the control valve III;
the lifting barrel lifting oil cylinder is connected with an oil way of the lifting barrel clamping oil cylinder in parallel, a rodless cavity of the lifting barrel lifting oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel lifting oil cylinder is connected with an oil port B3 of the control valve III;
a rodless cavity of the lifting barrel overturning oil cylinder is connected with an oil port A4 of the control valve IV, and a rod cavity of the lifting barrel overturning oil cylinder is connected with an oil port B4 of the control valve IV;
a rod cavity of the push plate oil cylinder is connected with an oil port A5 of the control valve V, and a rodless cavity of the push plate oil cylinder is connected with an oil port B5 of the control valve V;
the rear door opening and closing oil cylinder is provided with a rod cavity connected with an oil port A6 of the control valve VI, and a rodless cavity connected with an oil port B6 of the control valve VI;
the bolt oil cylinder is connected with an oil circuit of the rear door opening and closing oil cylinder in parallel, a rodless cavity of the bolt oil cylinder is connected with an oil port A6 of the control valve VI, and a rod cavity of the bolt oil cylinder is connected with an oil port B6 of the control valve VI;
a rod cavity of the pendulum oil cylinder is connected with an oil port A7 of the control valve VII, and a rodless cavity of the pendulum oil cylinder is connected with an oil port B7 of the control valve VI;
and the hydraulic lock is connected to a pipeline of an oil port A6 and an oil port B6 of the control valve VI, wherein the pipeline is connected with the rear door opening and closing oil cylinder and the bolt oil cylinder.
2. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 1, characterized in that: the control valve I, the control valve II, the control valve III and the control valve IV are all connected with a first overflow valve; and the control valve V, the control valve VI and the control valve VII are also connected with a second overflow valve, and the first overflow valve and the second overflow valve are connected to a return pipeline a through pipelines.
3. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 1, characterized in that: and a liquid level meter is also arranged in the hydraulic oil tank.
4. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 1, characterized in that: and an oil return filter is also arranged at one end of the oil return pipeline a connected to the hydraulic oil tank.
5. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 1, characterized in that: and a pipeline for connecting the input end of the first pump with the hydraulic oil tank and a pipeline for connecting the input end of the second pump with the hydraulic oil tank are converged into a whole, and the pipeline is provided with an oil suction filter.
6. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 2, characterized in that: and the control valve V is connected between the oil port of the second overflow valve and the oil port A5 of the control valve V through a pipeline, and a priority valve is arranged on the pipeline.
7. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 2, characterized in that: the lifting bucket lifting oil cylinder and the lifting bucket clamping oil cylinder are a pair.
8. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 2, characterized in that: the bolt oil cylinder and the rear door opening and closing oil cylinder are a pair.
9. The efficient energy-saving hydraulic system of the kitchen garbage truck as claimed in claim 2, characterized in that: the pendulum oil cylinders are a pair.
Technical Field
The invention relates to the technical field of sanitation vehicle hydraulic systems, in particular to a high-efficiency energy-saving hydraulic system of a kitchen garbage truck.
Background
The kitchen garbage truck main action part comprises six types including a push plate, a lifting mechanism, a pendulum mechanism, a rear door bolt mechanism, a cover plate and a vehicle washing gun, and all the parts are driven by a hydraulic system of the vehicle.
At present, a hydraulic circuit of the domestic kitchen garbage truck basically adopts a single-pump system, and generally, a pendulum mechanism and a lifting mechanism are not in composite linkage. If the combined action of the pendulum mechanism and the lifting mechanism is realized, a priority valve bank is additionally added to perform the shunting combined action with pressure compensation; and because the single pump discharge capacity is determined by large-flow actions (such as push plate actions and back door actions), the pendulum mechanism, the lifting barrel mechanism, the cover plate and the car washing gun do not need too large flow, and a throttle valve is additionally added for throttling and reducing the speed. Doing so is neither economical nor energy efficient.
Disclosure of Invention
In view of the situation of the prior art, the invention aims to provide an efficient and energy-saving hydraulic system of a kitchen garbage truck, which is reliable in implementation, high in hydraulic action efficiency and flexible in operation.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
energy-efficient hydraulic system of rubbish from cooking car, it includes:
the hydraulic oil tank is used for providing hydraulic oil;
the input end of the first pump is connected with a hydraulic oil tank pipeline;
the input end of the second pump is connected with a hydraulic oil tank pipeline;
the multi-way valve comprises a control valve I, a control valve II, a control valve III, a control valve IV, a control valve V, a control valve VI and a control valve VII, wherein the output end of a first pump is sequentially connected with oil inlets P1 of the control valve I, the control valve II, the control valve III and the control valve IV through oil inlet pipelines, the output end of a second pump is sequentially connected with oil inlets P2 of the control valve V, the control valve VI and the control valve VII through oil inlet pipelines, the control valve V, the control valve VI and the control valve VII are provided with oil return pipelines a and the oil return pipelines a are connected to a hydraulic oil tank, the control valve I, the control valve II, the control valve III and the control valve IV are provided with oil return pipelines b, and the oil return pipelines b form two branches and are respectively connected to the oil inlet pipelines of the control valve VI and the control valve VII;
the vehicle washing gun motor is provided with two connecting ports and is respectively connected with the oil port A1 and the oil port B1 of the control valve I;
a rodless cavity of the cover plate oil cylinder is connected with an oil port A2 of the control valve II, and a rod cavity of the cover plate oil cylinder is connected with an oil port B2 of the control valve II;
a rodless cavity of the lifting barrel clamping oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel clamping oil cylinder is connected with an oil port B3 of the control valve III;
the lifting barrel lifting oil cylinder is connected with an oil way of the lifting barrel clamping oil cylinder in parallel, a rodless cavity of the lifting barrel lifting oil cylinder is connected with an oil port A3 of the control valve III, and a rod cavity of the lifting barrel lifting oil cylinder is connected with an oil port B3 of the control valve III;
a rodless cavity of the lifting barrel overturning oil cylinder is connected with an oil port A4 of the control valve IV, and a rod cavity of the lifting barrel overturning oil cylinder is connected with an oil port B4 of the control valve IV;
a rod cavity of the push plate oil cylinder is connected with an oil port A5 of the control valve V, and a rodless cavity of the push plate oil cylinder is connected with an oil port B5 of the control valve V;
the rear door opening and closing oil cylinder is provided with a rod cavity connected with an oil port A6 of the control valve VI, and a rodless cavity connected with an oil port B6 of the control valve VI;
the bolt oil cylinder is connected with an oil circuit of the rear door opening and closing oil cylinder in parallel, a rodless cavity of the bolt oil cylinder is connected with an oil port A6 of the control valve VI, and a rod cavity of the bolt oil cylinder is connected with an oil port B6 of the control valve VI;
a rod cavity of the pendulum oil cylinder is connected with an oil port A7 of the control valve VII, and a rodless cavity of the pendulum oil cylinder is connected with an oil port B7 of the control valve VI;
and the hydraulic lock is connected to a pipeline of an oil port A6 and an oil port B6 of the control valve VI, wherein the pipeline is connected with the rear door opening and closing oil cylinder and the bolt oil cylinder.
As a possible implementation mode, further, the control valve i, the control valve ii, the control valve iii and the control valve iv are all connected with a first overflow valve; and the control valve V, the control valve VI and the control valve VII are also connected with a second overflow valve, and the first overflow valve and the second overflow valve are connected to a return pipeline a through pipelines.
As a possible implementation manner, a liquid level meter is further arranged in the hydraulic oil tank.
As a possible implementation manner, furthermore, a return oil filter is also arranged at one end of the return line a connected to the hydraulic oil tank.
As a possible embodiment, furthermore, a pipeline connecting the input end of the first pump and the hydraulic oil tank and a pipeline connecting the input end of the second pump and the hydraulic oil tank are combined into a single pipeline, and the pipeline is provided with an oil suction oil filter.
As a preferred embodiment, it is preferable that the control valve v is connected to a pipeline between the port of the second overflow valve and the port a5 of the control valve v, and a priority valve is provided on the pipeline.
As a preferred embodiment, it is preferable that the lift bucket lift cylinder and the lift bucket holding cylinder are a pair.
As a preferred embodiment, preferably, the latch oil cylinder and the rear door opening and closing oil cylinder are both a pair.
As a preferred embodiment, it is preferable that the pendulum oil cylinders are a pair.
The scheme adopts a double-pump system, and optimally designs the multi-way valve, so that the combined action of the pendulum mechanism and the lifting mechanism of the kitchen garbage truck is realized; the push plate and the rear door oil way are subjected to double-pump confluence; the lifting barrel oil cylinder, the cover plate oil cylinder and the vehicle washing gun motor are driven by the same single pump; because the pendulum hydro-cylinder compares with lift bucket hydro-cylinder etc. that the demand flow difference is great, adopts another single pump to drive. The flow matching of the double pump and the three speeds can be realized on the premise of not throttling and reducing speed and not externally connecting a power-controlled confluence valve. Therefore, the system is efficient and energy-saving.
By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that: the hydraulic system has the advantages that the first pump is used for controlling the actions of the vehicle washing gun motor, the cover plate oil cylinder, the lifting bucket clamping oil cylinder, the lifting bucket lifting oil cylinder and the lifting bucket overturning oil cylinder; the second pump controls the pendulum oil cylinder to act; when the lifting mechanism and the pendulum mechanism perform composite action, the two single pumps respectively and independently control the lifting barrel oil cylinder and the pendulum oil cylinder, so that mutual interference is avoided; when the push plate or the back door independently acts, the two single pumps are combined, and the rapid and efficient action is realized. The hydraulic system is not externally connected with the electric control confluence valve, only optimizes the traditional multi-way valve, can realize double-pump confluence of any specified action, can output the flow of a single pump of any specified action, and can realize flow matching of double pumps and three speeds, thereby realizing high efficiency and energy saving of the system.
Drawings
The invention will be further explained with reference to the drawings and the detailed description below: a
FIG. 1 is a schematic diagram of a schematic connection of a hydraulic system in accordance with aspects of the present disclosure;
FIG. 2 is a schematic diagram of components of a kitchen waste truck corresponding to the hydraulic system of the present invention;
fig. 3 is a schematic hydraulic schematic diagram of a multi-way valve according to aspects of the present invention.
Detailed Description
Referring to fig. 1 and fig. 2, the energy-efficient hydraulic system of the kitchen garbage truck of the present invention includes:
the hydraulic oil tank 4 is used for providing hydraulic oil, and a liquid level meter 6 is further arranged in the hydraulic oil tank 4 for facilitating the monitoring of the liquid level of the hydraulic oil;
the input end of the first pump 1 is connected with a hydraulic oil tank 4 through a pipeline;
the input end of the second pump 3 is connected with the hydraulic oil tank 4 through a pipeline;
the multi-way valve 7 comprises a control valve I71, a control valve II 72, a control valve III 73, a control valve IV 74, a control valve V75, a control valve VI 76 and a control valve VII 77, wherein the output end of the first pump 1 is sequentially connected with oil inlets P1 of the control valve I71, the control valve II 72, the control valve III 73 and the control valve IV 74 through oil inlet pipelines, the output end of the second pump 3 is sequentially connected with oil inlets P2 of the control valve V75, the control valve VI 76 and the control valve VII 77 through oil inlet pipelines, the control valve V75, the control valve VI 76 and the control valve VII 77 are provided with oil return pipelines a, and the oil return pipelines a are connected to the hydraulic oil tank 4 (specifically, the multi-way valve 7 can be independently provided with an oil return port T and then are connected through a main oil return pipeline 501), the control valve I71, the control valve II 72, the control valve IV 74 and the control valve VII are connected through oil return pipelines, The control valve III 73 and the control valve IV 74 are provided with oil return pipelines b, and the oil return pipelines b form two branches and are respectively connected to oil inlet pipelines of the control valve VI 76 and the control valve VII 77;
a carwash gun motor 17 having two connection ports and connected to the oil port a1 and the oil port B1 of the control valve i 71, respectively;
the rodless cavity of the cover plate oil cylinder 16 is connected with the oil port A2 of the control valve II 72, and the rod cavity of the cover plate oil cylinder is connected with the oil port B2 of the control valve II 72;
the lifting barrel clamping oil cylinder 15 is provided with a rodless cavity connected with the oil port A3 of the control valve III 73 and a rod cavity connected with the oil port B3 of the control valve III 73;
the lifting bucket lifting oil cylinder 14 is connected with an oil circuit of the lifting bucket clamping oil cylinder 15 in parallel, a rodless cavity of the lifting bucket lifting oil cylinder is connected with an oil port A3 of the control valve III 73, and a rod cavity of the lifting bucket lifting oil cylinder is connected with an oil port B3 of the control valve III 73;
a rodless cavity of the lifting barrel overturning oil cylinder 13 is connected with an oil port A4 of the control valve IV 74, and a rod cavity of the lifting barrel overturning oil cylinder is connected with an oil port B4 of the control valve IV 74; in this embodiment, as a preferred embodiment, it is preferable that the lift bucket lift cylinder 14 and the lift bucket holding cylinder 15 are a pair.
The push plate oil cylinder 12 is provided with a rod cavity connected with an oil port A5 of the control valve V75, and a rodless cavity connected with an oil port B5 of the control valve V75;
the rear door opening and closing oil cylinder 10 is provided with a rod cavity connected with an oil port A6 of the control valve VI 76, and a rodless cavity connected with an oil port B6 of the control valve VI 76;
the bolt oil cylinder 9 is connected with an oil circuit of the rear door opening and closing oil cylinder 10 in parallel, a rodless cavity of the bolt oil cylinder is connected with an oil port A6 of the control valve VI 76, and a rod cavity of the bolt oil cylinder is connected with an oil port B6 of the control valve VI 76;
a pendulum oil cylinder 8, a rod cavity of which is connected with an oil port A7 of the control valve VII 77, and a rodless cavity of which is connected with an oil port B7 of the control valve VI 76; as a preferred embodiment, it is preferable that the pendulum oil cylinders 8 are a pair;
and the hydraulic lock 11 is connected to pipelines of an oil port A6 and an oil port B6, which are connected to the control valve VI 76, of the back door opening and closing oil cylinder 10 and the bolt oil cylinder 9, and the hydraulic lock 11 is a bidirectional hydraulic lock and is used for ensuring the back door opening and closing oil cylinder 10 and the bolt oil cylinder 9 to be in a stop operation state and preventing the self weight from descending.
As a possible embodiment, further, the control valve i 71, the control valve ii 72, the control valve iii 73 and the control valve iv 74 are all connected with a first overflow valve; the control valve V75, the control valve VI 76 and the control valve VII 77 are also connected with second overflow valves, and the first overflow valves and the second overflow valves are connected to a return pipeline a through pipelines; as a preferred embodiment, it is preferable that the control valve v 75 is connected to a pipeline between the port of the second overflow valve and the port a5 of the control valve v 75, and the pipeline is provided with the priority valve 20.
In addition, in order to avoid the suction of impurities, as a possible implementation mode, a return oil filter 5 is further arranged at one end of the return oil pipeline a connected to the hydraulic oil tank; as a possible embodiment, furthermore, a pipeline connecting the input end of the first pump 1 and the hydraulic oil tank 4 and a pipeline connecting the input end of the second pump 3 and the hydraulic oil tank 4 are combined into one pipeline, and the pipeline is provided with the oil suction oil filter 2.
Referring to fig. 3, which is a schematic diagram of the multi-way valve 7, the
The foregoing is directed to embodiments of the present invention, and equivalents, modifications, substitutions and variations such as will occur to those skilled in the art, which fall within the scope and spirit of the appended claims.
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