CN220032953U - Compression vehicle - Google Patents

Abstract

The utility model discloses a compression vehicle, which comprises: the displacement sensor is used for detecting the displacement change of the push shovel; the electric proportional overflow valve is used for adjusting the oil return pressure of the multi-stage telescopic oil cylinder connected with the push shovel under the pressure filling working condition of the compression vehicle; and the controller is respectively communicated with the displacement sensor and the electric proportional overflow valve and is configured to control the electric proportional overflow valve to correspondingly reduce the oil return pressure according to the displacement change under the pressure filling working condition. By adopting the compression vehicle, the compression density of the garbage in each area in the carriage body is approximately the same, so that the garbage amount loaded in a single pass during long-distance transportation is improved, the operation cost is effectively reduced, and the garbage transfer efficiency is improved.

Description

Compression vehicle

Technical Field

The utility model relates to the technical field of compression vehicles.

Background

The compressed vehicle is the main vehicle equipment for collecting and transferring household garbage in towns, the urban scale is larger and the land is thinner and thinner along with the acceleration of towns in recent years, and some cities are gradually canceling garbage stations and adopting a direct transportation mode for long-distance transportation.

However, the existing compression vehicle has small garbage loading capacity, the single-pass operation cost is high during long-distance transportation, and one of the reasons for the small loading capacity is that the compression density of garbage in a carriage cannot be approximately the same in all areas, and the situation that local compression is not tight exists, so that the loading capacity of the carriage cannot be fully utilized.

Disclosure of Invention

In order to overcome at least one defect or deficiency in the prior art, the utility model provides the compression vehicle, which can realize that the compression density of garbage in each area in a carriage body is approximately the same, and improve the garbage amount loaded in a single pass during long-distance transportation, so that the operation cost is effectively reduced, and the garbage transfer efficiency is improved.

To achieve the above object, the present utility model provides a compression vehicle comprising:

the displacement sensor is used for detecting the displacement change of the push shovel;

the electric proportional overflow valve is used for adjusting the oil return pressure of the multi-stage telescopic oil cylinder connected with the push shovel under the pressure filling working condition of the compression vehicle; and

and the controller is respectively communicated with the displacement sensor and the electric proportional overflow valve and is configured to control the electric proportional overflow valve to correspondingly reduce the oil return pressure according to the displacement change under the pressure filling working condition.

Optionally, the compression vehicle includes a hydraulic transmission system connected with the multi-stage telescopic cylinder pipeline and a power system providing hydraulic power for the hydraulic transmission system, and the controller is in communication with the power system and configured to:

and under the unloading working condition of the compression vehicle, controlling and adjusting the hydraulic power output by the power system according to the displacement change, so that the multistage telescopic oil cylinder keeps constant-speed extension.

Optionally, the power system comprises a chassis power system disposed on a chassis of the compression vehicle and an electric power system disposed on a cabin assembly of the compression vehicle, the hydraulic transmission system being configured to be operable from an optional one of the chassis power system and the electric power system.

Optionally, the chassis power system comprises an engine, a gearbox, a power takeoff and a chassis hydraulic pump capable of adjusting the rotating speed and the flow rate which are connected in sequence in a transmission mode, and the electric power system comprises a motor connected in a transmission mode and a motor hydraulic pump capable of adjusting the rotating speed and the flow rate.

Optionally, the chassis power system is formed with a chassis power take-off joint, the electrical power system is formed with an electrical power take-off joint, and the hydraulic transmission system is formed with a hydraulic transmission input joint detachably connectable with an optional one of the chassis power take-off joint and the electrical power take-off joint.

Optionally, the carriage assembly includes the carriage body, the part of hydraulic drive system with the part of electric power system sets up the anterior region in the carriage body, the anterior lateral wall of carriage body is equipped with the shutter door that can wholly open and shut.

Optionally, the carriage assembly includes the frame, sets up running gear in the bottom of frame and sets up the carriage body at the top of frame, the compression car includes the tractor that is used for pulling the carriage assembly walking, the part of electric powertrain system sets up on the frame, chassis driving system sets up on the tractor.

Optionally, the compartment assembly of the compression vehicle includes a compartment body and a openable and closable sealing door disposed in a compartment sidewall area between a front end of the compartment body and the push shovel.

Optionally, the carriage assembly of the compression vehicle comprises a carriage body and a ladder stand arranged on the front end wall of the carriage body.

Optionally, a movable tail docking stay is arranged on the filler of the compression vehicle.

In the process of continuously filling the garbage into the carriage body by adopting the compression vehicle, as the garbage filling amount increases, the push shovel at the tail part of the carriage body can continuously overcome the oil return pressure of the multi-stage telescopic oil cylinder to move forward due to continuous compression until the multi-stage telescopic oil cylinder is in a fully contracted state. When the push shovel moves forward, the controller controls the electric proportional overflow valve to adaptively reduce the oil return pressure of the multi-stage telescopic oil cylinder according to the displacement change of the push shovel detected by the displacement sensor, so that the forward moving resistance of the garbage at the rear part is ensured to be approximately the same as the forward moving resistance of the garbage at the front part when the garbage is compressed before, the garbage compression density of each area in the carriage body is ensured to be approximately the same, the garbage amount loaded in a single pass when the compressed carriage is transported for a long distance can be improved, the operation cost is effectively reduced, and the garbage transportation efficiency is improved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a schematic illustration of a compression vehicle in accordance with an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of the compression cart of FIG. 1;

FIG. 3 is a front view of the wagon body of the compression cart of FIG. 1, with the ladder shown in a stowed position;

FIG. 4 is another front view of the wagon body of the compression cart of FIG. 1, with the ladder shown in a lowered position;

FIG. 5 is a schematic illustration of a filler of the compression vehicle of FIG. 1;

fig. 6 is a schematic diagram of a chassis power system, an electric power system, and a hydraulic drive system of a compression vehicle in accordance with an embodiment of the present utility model.

Reference numerals illustrate:

1. tractor 2 carriage body

3. Electric power system for frame 4

5. Push shovel 6 multistage telescopic cylinder

7. Filler 8 filler side plate

9. Sealing door of shutter door 10

11. Cat ladder 12 tail butt joint stay bar

Detailed Description

The following describes the detailed implementation of the embodiments of the present utility model with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the embodiments of the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" or "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions.

The utility model will be described in detail below with reference to the drawings in connection with exemplary embodiments.

Referring to fig. 1 to 6, an exemplary embodiment of the present utility model provides a compression vehicle including a displacement sensor, an electric proportional relief valve, and a controller. Specifically, the displacement sensor is used to detect a displacement change of the push blade 5. The electric proportional overflow valve is used for adjusting the oil return pressure of the multi-stage telescopic oil cylinder 6 connected with the push shovel 5 under the pressure filling working condition of the compression vehicle. The controller is respectively communicated with the displacement sensor and the electric proportional overflow valve, and the controller is configured to control the electric proportional overflow valve to correspondingly reduce the oil return pressure according to the displacement change of the push shovel 5 detected by the displacement sensor under the pressure filling working condition.

In the process of continuously compacting the garbage into the cabin body 2 by the compacting vehicle of the present exemplary embodiment, as the compacting amount of the garbage increases, the push shovel 5 initially located at the tail of the cabin body 2 continuously moves forward against the return oil pressure of the multi-stage telescopic cylinder 6 due to continuous compression until the multi-stage telescopic cylinder 6 moves forward in a fully contracted state.

When the push shovel 5 moves forward, because the front garbage receives a certain forward resistance, if the compression density of the rear garbage is about the same as that of the front garbage, the oil return pressure of the multi-stage telescopic oil cylinder 6 is required to be reduced, so that the reduced oil return pressure and the forward resistance of the front garbage are overlapped to form the forward resistance of the rear garbage, so that the forward resistance of the rear garbage is about the same as that of the front garbage when the front garbage is compressed before, and the compression density of the garbage in each area in the carriage body 2 is about the same.

The oil return pressure can be regulated by controlling the electric proportional overflow valve through the controller according to the displacement change of the push shovel 5 detected by the displacement sensor.

Therefore, by adopting the compression vehicle of the embodiment, the garbage amount loaded by a single trip during long-distance transportation can be improved, so that the operation cost is effectively reduced, and the garbage transferring efficiency is improved.

In addition, when the push shovel 5 is positioned close to the tail part of the carriage body 2 under the pressure filling working condition, the phenomenon that the push shovel 5 moves forward due to the expansion of garbage can be avoided because the oil return pressure of the multistage telescopic oil cylinder 6 is relatively large at the moment, the push shovel 5 is ensured to be pushed and filled and retreated due to the garbage, and the compression density of the garbage can be ensured instead of the pressure exerted by the expansion of the garbage, so that the space occupied by the carriage body 2 due to the expansion of the garbage is avoided.

The compression vehicle also typically includes a hydraulic transmission system in fluid communication with the multi-stage telescopic ram 6 and a power system for providing hydraulic power to the hydraulic transmission system. Under the unloading working condition of the compression vehicle, the multistage telescopic oil cylinder 6 continuously stretches backwards, the rear-stage cylinder diameter of the multistage telescopic oil cylinder 6 is smaller than the front-stage cylinder diameter, namely the cross-sectional area of the rear part of the multistage telescopic oil cylinder 6 is smaller than the cross-sectional area of the front part, so that under the condition that the hydraulic power output by the power system is kept constant, the more the multistage telescopic oil cylinder 6 stretches, the smaller the thrust of the multistage telescopic oil cylinder on garbage is, and the situation that the garbage cannot be pushed out possibly occurs.

For this purpose, in the case of the above-mentioned controller, the controller may be further configured to communicate with the power system, and the controller may be further configured to control the hydraulic power output from the power system according to the displacement change of the push shovel 5 detected by the displacement sensor under the unloading condition of the compression vehicle, so that the multistage telescopic cylinder 6 maintains constant-speed extension. In other words, in this embodiment, the hydraulic power output by the power system may be adjusted, when the multistage telescopic cylinder 6 stretches more backward, the hydraulic power output by the power system may be correspondingly adjusted to be greater, so that the phenomenon that the more the multistage telescopic cylinder 6 stretches, the smaller the thrust is avoided, the multistage telescopic cylinder 6 always has enough unloading thrust for garbage, and uniform unloading may be realized.

In one embodiment, the powertrain includes a chassis powertrain disposed on the chassis of the compression vehicle and an electric powertrain 4 disposed on the cabin assembly of the compression vehicle, the hydraulic transmission system being configured to be operable from an optional one of the chassis powertrain and the electric powertrain 4. The hydraulic drive system may take force from the chassis power system or may take force from the electric power system 4 during the press-fill or dump conditions of the compression vehicle. In addition, chassis driving system and electric driving system 4 set up to can work mutually independently, therefore a compression car except can provide power for the pressure of self fills the operating mode, the operating mode of unloading, can also provide power for the pressure of other compression cars fills the operating mode, the operating mode of unloading simultaneously to can improve rubbish transport efficiency, reduce operation cost.

In one embodiment, the chassis power system comprises an engine, a gearbox, a power takeoff and a chassis hydraulic pump with adjustable speed and flow in a sequential driving connection, and the electric power system 4 comprises a motor with a driving connection and a motor hydraulic pump with adjustable speed and flow.

When the hydraulic transmission systems of a plurality of compression vehicles take power from the chassis power system and take power from the electric power system 4 in the same working environment, because the noise of the engine and the noise of the motor are different at the same rotating speed, when the chassis power system and the electric power system 4 work simultaneously, certain noise pollution can be caused to the field working environment. Therefore, the noise is approximately the same when the chassis power system and the electric power system 4 work simultaneously by adjusting the rotation speed and the flow rate of the chassis hydraulic pump and the rotation speed and the flow rate of the motor hydraulic pump, so that the noise pollution to the working environment can be reduced to a certain extent.

Meanwhile, the hydraulic power output by the power system can be adjusted by adjusting the flow and the rotating speed of the chassis hydraulic pump and the flow and the rotating speed of the motor hydraulic pump. For example, under the unloading working condition of the compression vehicle, in order to enable the multi-stage telescopic oil cylinder 6 to be stretched at a constant speed, so as to ensure that the multi-stage telescopic oil cylinder 6 always has enough unloading thrust to garbage to realize constant-speed unloading, hydraulic power output by the power system needs to be controlled and regulated to finish the unloading. Specifically, when the unloading is performed, the rotation speed and the flow of the chassis hydraulic pump or the rotation speed and the flow of the motor hydraulic pump are regulated according to the displacement change of the push shovel 5 detected by the displacement sensor, so that the hydraulic power output by the power system is regulated, and the uniform unloading is realized.

In addition, by adjusting the rotation speed and flow rate of the chassis hydraulic pump and the rotation speed and flow rate of the motor hydraulic pump, the working efficiency of the hydraulic transmission system for selecting the compression vehicle operated by taking power from the chassis power system and the working efficiency of the hydraulic transmission system for selecting the compression vehicle operated by taking power from the electric power system 4 can be kept consistent, and the work can be completed at approximately the same time.

In one embodiment, the chassis power system is formed with a chassis power take-off joint, the electric power system 4 is formed with an electric power take-off joint, and the hydraulic transmission system is formed with a hydraulic transmission input joint that is detachably connectable with an optional one of the chassis power take-off joint and the electric power take-off joint. The chassis power output joint, the electric power output joint and the hydraulic transmission input joint are all quick-plug joints. When the hydraulic transmission system needs to switch the power mode, the hydraulic transmission system can be completed by replacing the power output connector connected with the hydraulic transmission input connector. Specifically, the hydraulic drive system is operated with power drawn from the chassis power system when the hydraulic drive input connection of the hydraulic drive system is connected to the chassis power take-off connection. When the hydraulic transmission input joint is connected with the electric power output joint, the hydraulic transmission system is operated by taking force from the electric power system 4.

In one embodiment, the carriage assembly comprises a carriage body 2, with parts of the hydraulic transmission system and parts of the electric power system 4 being arranged in a front region within the carriage body 2, the front side wall of the carriage body 2 being provided with a shutter door 9 which is openable and closable as a whole. The shutter door 9 which can be opened and closed can facilitate the heat dissipation of the part of the hydraulic transmission system and the part of the electric power system 4 which are arranged in the front area of the carriage body 2, and also facilitate the maintenance of the part which is arranged in the front area of the carriage body 2 when the maintenance is needed, the operator can enter the carriage body 2 for maintenance.

In one embodiment, the carriage assembly comprises a frame 3, a running gear arranged at the bottom of the frame 3 and a carriage body 2 arranged at the top of the frame 3, the compression vehicle comprises a tractor 1 for towing the carriage assembly to run, part of components of an electric power system 4 are arranged on the frame 3, and a chassis power system is arranged on the tractor 1.

Specifically, the tractor 1 and the carriage assembly are detachably connected, and the carriage assembly is pulled by the tractor 1 and can be transported to a required place for garbage transportation. When the tractor 1 pulls the carriage assembly filled with garbage to the garbage disposal station, the carriage assembly can be separated from the garbage disposal station, and the next carriage assembly can be pulled continuously. In addition, since the electric power system 4 is provided on the cabin assembly, and part of the components are provided on the frame 3, the chassis power system is provided on the tractor 1, and the two sets of power systems operate independently of each other, the hydraulic power transmission system can operate with a power from either one of the chassis power system and the electric power system 4 when the cabin assembly is connected to the tractor 1, and the hydraulic power transmission system operates with a power from the electric power system 4 provided in the cabin assembly when the cabin assembly is separated from the tractor 1. So set up, the carriage assembly can break away from tractor 1 and independently carry out rubbish unloading work, also can make a tractor 1 can dispose with a plurality of carriage assemblies, reduces the setting of tractor 1 to can improve work efficiency, reduce operation cost.

In one embodiment, the cabin assembly of the compression vehicle includes a cabin body 2 and an openable and closable seal door 10 provided in a cabin side wall region between a front end of the cabin body 2 and the push blade 5. When the garbage is filled into the carriage body 2, part of the garbage can be pushed to the rear part of the push shovel 5, and the garbage piled on the rear part of the push shovel 5 can be conveniently removed through the openable sealing door 10.

In one embodiment, the wagon assembly of the compression wagon includes a wagon body 2 and a ramp 11 provided at a front end wall of the wagon body 2. The ladder 11 is arranged on the front section wall of the carriage body 2, so that the inside of the carriage body 2 and the top of the carriage body 2 can be conveniently maintained. When the maintenance is required to be performed to the inside of the cabin body 2 or the top of the cabin body 2, after the tractor 1 is removed, the operator can perform the maintenance to the inside of the cabin body 2 and the top of the cabin body 2 by the ladder stand 11 provided at the front wall of the cabin body 2. For example, the ladder 11 may be configured to be switchable between a stowed state and a lowered state, and when the tractor 1 pulls the cabin body 2, the lower portion of the ladder 11 needs to be stowed, i.e., as shown in fig. 3, to avoid obstructing the normal connection of the tractor 1 and the cabin body 2. When the tractor 1 is removed, the lower part of the ladder 11 can be lowered, i.e. as shown in fig. 4, so that the operator can climb from the ground.

In one embodiment, the movable tail docking support rod 12 is arranged on the filler 7 of the compression truck, and the tail docking support rod 12 can be adjusted to a certain extent according to the equipment to be docked, so that the compression truck can be directly docked with other self-loading and unloading garbage trucks and loaders to be docked through the arranged tail docking support rod 12, and the garbage transfer is completed. In addition, the left side and the right side of the filler 7 are provided with filler side plates 8, the left and the right filler side plates 8 are formed into a left widened coaming and a right widened coaming together, so that the interference of the two fillers when the compression vehicle is in tipping over garbage can be avoided, and meanwhile, the left and the right widened coaming can prevent the garbage from drifting. Therefore, the compression vehicle can be used as a movable garbage transfer station, and garbage can be directly conveyed to the garbage disposal station through the compression vehicle, so that the construction of the garbage transfer station is reduced, and the construction cost and the garbage disposal cost are reduced.

The foregoing details of the optional implementation of the embodiment of the present utility model have been described in detail with reference to the accompanying drawings, but the embodiment of the present utility model is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present utility model within the scope of the technical concept of the embodiment of the present utility model, and these simple modifications all fall within the protection scope of the embodiment of the present utility model.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

In addition, any combination of various embodiments of the present utility model may be performed, so long as the concept of the embodiments of the present utility model is not violated, and the disclosure of the embodiments of the present utility model should also be considered.

Claims (10)

1. A compression vehicle, the compression vehicle comprising:

the displacement sensor is used for detecting the displacement change of the push shovel (5);

the electric proportional overflow valve is used for adjusting the oil return pressure of the multi-stage telescopic oil cylinder (6) connected with the push shovel (5) under the pressure filling working condition of the compression vehicle; and

and the controller is respectively communicated with the displacement sensor and the electric proportional overflow valve and is configured to control the electric proportional overflow valve to correspondingly reduce the oil return pressure according to the displacement change under the pressure filling working condition.

2. The compression vehicle of claim 1, comprising a hydraulic drive system in line with the multi-stage telescopic ram (6) and a power system providing hydraulic power to the hydraulic drive system, the controller being in communication with the power system and configured to:

and under the unloading working condition of the compression vehicle, controlling and adjusting the hydraulic power output by the power system according to the displacement change, so that the multistage telescopic oil cylinder (6) keeps constant-speed extension.

3. A compression vehicle according to claim 2, characterized in that the power system comprises a chassis power system arranged on the chassis of the compression vehicle and an electric power system (4) arranged on the cabin assembly of the compression vehicle, the hydraulic transmission system being arranged to be able to operate with power from an optional one of the chassis power system and the electric power system (4).

4. A compression vehicle according to claim 3, characterized in that the chassis power system comprises an engine, a gearbox, a power take-off and a chassis hydraulic pump with adjustable speed and flow rate in a driving connection in sequence, and the electric power system (4) comprises a motor with a driving connection and a motor hydraulic pump with adjustable speed and flow rate.

5. A compression vehicle according to claim 3, characterized in that the chassis power system is formed with a chassis power take-off joint, the electric power system (4) is formed with an electric power take-off joint, and the hydraulic transmission system is formed with a hydraulic transmission input joint detachably connectable to an optional one of the chassis power take-off joint and the electric power take-off joint.

6. A compression vehicle according to claim 3, characterized in that the carriage assembly comprises a carriage body (2), the parts of the hydraulic transmission system and the parts of the electro-pneumatic system (4) being arranged in a front area within the carriage body (2), the front side wall of the carriage body (2) being provided with a shutter door (9) which can be opened and closed as a whole.

7. A compression vehicle according to claim 3, characterized in that the carriage assembly comprises a frame (3), a running gear arranged at the bottom of the frame (3) and a carriage body (2) arranged at the top of the frame (3), the compression vehicle comprises a tractor (1) for towing the carriage assembly to run, parts of the electric power system (4) are arranged on the frame (3), and the chassis power system is arranged on the tractor.

8. The compression vehicle according to claim 1, characterized in that the cabin assembly of the compression vehicle comprises a cabin body (2) and a openable sealing door (10) arranged in the cabin side wall area between the front end of the cabin body (2) and the push blade (5).

9. The compression vehicle according to claim 1, characterized in that the cabin assembly of the compression vehicle comprises a cabin body (2) and a ladder stand (11) provided at a front end wall of the cabin body (2).

10. A compression vehicle according to claim 1, characterized in that the filler (7) of the compression vehicle is provided with a movable tail docking stay (12).