CN219568703U - Road washing vehicle - Google Patents
Road washing vehicle Download PDFInfo
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- CN219568703U CN219568703U CN202320150359.1U CN202320150359U CN219568703U CN 219568703 U CN219568703 U CN 219568703U CN 202320150359 U CN202320150359 U CN 202320150359U CN 219568703 U CN219568703 U CN 219568703U
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Abstract
The utility model discloses a road washing vehicle which comprises an engine, a gearbox, a power takeoff, a hydraulic pump, a hydraulic oil tank, a reversing valve, a first hydraulic motor, a second hydraulic motor, a low-pressure water pump, a high-pressure water pump, a low-pressure washing mechanism and a high-pressure washing mechanism, wherein the engine is connected with the gearbox; an output shaft of the power takeoff is connected with a hydraulic pump; the hydraulic pump oil inlet end is connected with the hydraulic oil tank, the hydraulic pump oil outlet end is connected with the input end of the reversing valve, the first hydraulic motor oil inlet end and the second hydraulic motor oil inlet end are respectively connected with two output ends of the reversing valve, and the first hydraulic motor oil outlet end and the second hydraulic motor oil outlet end are both connected with the hydraulic oil tank; the device can realize flexible use of low-pressure flushing and high-pressure flushing, and meets various flushing requirements of roads.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a road washing vehicle.
Background
At present, a low-pressure water sprinkling pump is directly driven by a power takeoff on an automobile gearbox through a transmission shaft. In actual use, the engine cannot meet the power requirement of the sprinkler pump in a low-rotation-speed state, and fuel oil needs to be supplied to reach the working rotation speed of the sprinkler pump. The power takeoff is connected with the transmission shaft to directly drive the low-pressure sprinkler pump, the structure is fixed, and the sprinkler is single in application scene.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a road washing vehicle, which can realize flexible use of low-pressure washing and high-pressure washing and meet various washing requirements of roads.
The road washing vehicle comprises an engine, a gearbox, a power takeoff, a hydraulic pump, a hydraulic oil tank, a reversing valve, a first hydraulic motor, a second hydraulic motor, a low-pressure water pump, a high-pressure water pump, a low-pressure washing mechanism and a high-pressure washing mechanism, wherein the engine is connected with the gearbox;
an output shaft of the power takeoff is connected with the hydraulic pump, and the power takeoff can drive the hydraulic pump to work;
the hydraulic pump oil inlet end is connected with the hydraulic oil tank, the hydraulic pump oil outlet end is connected with the input end of the reversing valve, the first hydraulic motor oil inlet end and the second hydraulic motor oil inlet end are respectively connected with two output ends of the reversing valve, and the first hydraulic motor oil outlet end and the second hydraulic motor oil outlet end are both connected with the hydraulic oil tank;
the first hydraulic motor is connected with the low-pressure water pump, the first hydraulic motor can drive the low-pressure water pump to work, the water inlet end of the low-pressure water pump is connected with the water tank, and the water outlet end of the low-pressure water pump is connected with the low-pressure flushing mechanism;
the second hydraulic motor is connected with the high-pressure water pump, and the second hydraulic motor can drive the high-pressure water pump to work, and the high-pressure water pump water inlet end is connected with the water tank, and the high-pressure water pump water outlet end is connected with the high-pressure flushing mechanism.
Preferably, the reversing valve is a three-position four-way electromagnetic reversing valve, the oil outlet end of the hydraulic pump is connected with the input end of the reversing valve, and the three output ends of the three-position four-way electromagnetic reversing valve are respectively connected with the first hydraulic motor, the second hydraulic motor and the hydraulic oil tank.
Preferably, the hydraulic pump is connected with the reversing valve through a first pipeline, one end of the pressure relief pipeline is connected with the first pipeline, the other end of the pressure relief pipeline is connected with the hydraulic oil tank, and the pressure relief pipeline is provided with an overflow valve.
Preferably, the first pipeline is connected with a pressure measuring pipeline, and a pressure gauge is arranged on the pressure measuring pipeline.
Preferably, the oil outlet end of the first hydraulic motor is connected with a third pipeline, the oil outlet end of the second hydraulic motor is connected with a fourth pipeline, the third pipeline and the fourth pipeline are both connected with a fifth pipeline, the fifth pipeline is connected with a hydraulic oil tank, a first check valve is arranged on the third pipeline and allows hydraulic oil to flow from the first hydraulic motor to the fifth pipeline, a second check valve is arranged on the fourth pipeline and allows hydraulic oil to flow from the second hydraulic motor to the fifth pipeline.
Preferably, the hydraulic pump is connected with the hydraulic oil tank through a second pipeline, one end of the sixth pipeline is connected with the fifth pipeline, the other end of the sixth pipeline is connected with the second pipeline, a third one-way valve is arranged on the fifth pipeline and is positioned between a connecting point of the sixth pipeline and the fifth pipeline and the hydraulic oil tank, and the third one-way valve allows hydraulic oil to flow to the hydraulic oil tank.
Preferably, a radiator is arranged on the fifth pipeline, and the radiator is located between the third one-way valve and the hydraulic oil tank.
Preferably, a filter is arranged on the second pipeline, and the filter is located between the connection point of the sixth pipeline and the second pipeline and the hydraulic oil tank.
The beneficial effects of the utility model are as follows: according to the technical scheme, the gearbox is driven by the engine to drive the power takeoff to work, the power takeoff is driven to work to drive the hydraulic pump to work, the hydraulic pump extracts hydraulic oil in the hydraulic oil tank, the hydraulic oil enters the reversing valve to control the working state of the reversing valve, the hydraulic oil flows back to the hydraulic oil tank after entering the first hydraulic motor or the second hydraulic motor, so that circulation of the hydraulic oil is achieved, when the hydraulic oil enters the first hydraulic motor, the first hydraulic motor drives the low-pressure water pump to work, the low-pressure water pump extracts water in the water tank and then discharges the water to perform low-pressure flushing through the low-pressure flushing mechanism, when the hydraulic oil enters the second hydraulic motor, the second hydraulic motor drives the high-pressure water pump to work, the high-pressure water pump extracts water in the water tank and then discharges the water to perform high-pressure flushing through the high-pressure flushing mechanism, and thus the working state of the reversing valve is controlled to switch, the low-pressure flushing and the high-pressure flushing are flexibly used, and various flushing requirements of a road are met.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic block diagram of the present utility model;
FIG. 2 is a hydraulic schematic of the present utility model;
fig. 3 is a bottom view of the vehicle of the present utility model.
In the drawing, a 1-engine, a 2-gearbox, a 3-power takeoff, a 4-hydraulic pump, a 5-hydraulic oil tank, a 6-reversing valve, a 7-first hydraulic motor, an 8-second hydraulic motor, a 9-low pressure water pump, a 10-high pressure water pump, an 11-low pressure flushing mechanism, a 12-high pressure flushing mechanism, a 13-pressure relief pipeline, a 14-overflow valve, a 15-first pipeline, a 16-pressure measurement pipeline, a 17-pressure gauge, a 18-second pipeline, a 19-third pipeline, a 20-fourth pipeline, a 21-fifth pipeline, a 22-sixth pipeline, a 23-first one-way valve, a 24-second one-way valve, a 25-third one-way valve, a 26-radiator and a 27-filter.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.
Examples
As shown in fig. 1 to 3, in this embodiment, there is provided a road washing vehicle, which includes an engine 1, a gear box 2, and a power take-off 3, wherein the engine 1 is connected with the gear box 2, the gear box 2 is connected with the power take-off 3, and further includes a hydraulic pump 4, a hydraulic tank 5, a reversing valve 6, a first hydraulic motor 7, a second hydraulic motor 8, a low-pressure water pump 9, a high-pressure water pump 10, a low-pressure washing mechanism 11, and a high-pressure washing mechanism 12;
an output shaft of the power takeoff 3 is connected with the hydraulic pump 4, and the power takeoff 3 can drive the hydraulic pump 4 to work;
the oil inlet end of the hydraulic pump 4 is connected with the hydraulic oil tank 5, the oil outlet end of the hydraulic pump 4 is connected with the input end of the reversing valve 6, the oil inlet end of the first hydraulic motor 7 and the oil inlet end of the second hydraulic motor 8 are respectively connected with the two output ends of the reversing valve 6, and the oil outlet ends of the first hydraulic motor 7 and the second hydraulic motor 8 are both connected with the hydraulic oil tank 5;
the first hydraulic motor 7 is connected with the low-pressure water pump 9, the first hydraulic motor 7 can drive the low-pressure water pump 9 to work, the water inlet end of the low-pressure water pump 9 is connected with the water tank, and the water outlet end of the low-pressure water pump 9 is connected with the low-pressure flushing mechanism 11;
the second hydraulic motor 8 is connected with the high-pressure water pump 10, and the second hydraulic motor 8 can drive the high-pressure water pump 10 to work, and the water inlet end of the high-pressure water pump 10 is connected with the water tank, and the water outlet end of the high-pressure water pump 10 is connected with the high-pressure flushing mechanism 12.
The specific working principle is as follows: the engine 1 drives the gearbox 2 to move so as to drive the power takeoff 3 to work, the power takeoff 3 works so as to drive the hydraulic pump 4 to work, the hydraulic pump 4 extracts hydraulic oil in the hydraulic oil tank 5, the hydraulic oil enters the reversing valve 6, the working state of the reversing valve 6 is controlled, the hydraulic oil flows back to the hydraulic oil tank 5 after entering the first hydraulic motor 7 or the second hydraulic motor 8, thereby realizing the circulation of the hydraulic oil, when the hydraulic oil enters the first hydraulic motor 7, the first hydraulic motor 7 drives the low-pressure water pump 9 to work, the low-pressure water pump 9 extracts water in the water tank and then discharges the water through the low-pressure flushing mechanism 11 to perform low-pressure flushing, when the hydraulic oil enters the second hydraulic motor 8, the second hydraulic motor 8 drives the high-pressure water pump 10 to operate, the high-pressure water pump 10 extracts water in the water tank and then discharges the water through the high-pressure flushing mechanism 12 to perform high-pressure flushing, and thus the working state switching of the reversing valve 6 is controlled, the low-pressure flushing and the high-pressure flushing are flexibly used, and various flushing requirements of roads are met.
In this embodiment, the reversing valve 6 is a three-position four-way electromagnetic reversing valve, the oil outlet end of the hydraulic pump 4 is connected with the input end of the reversing valve 6, and three output ends of the three-position four-way electromagnetic reversing valve are respectively connected with the first hydraulic motor 7, the second hydraulic motor 8 and the hydraulic oil tank 5. In this embodiment, the reversing valve 6 is a three-position four-way electromagnetic reversing valve, so that hydraulic oil entering the three-position four-way electromagnetic reversing valve can be controlled to be discharged to the first hydraulic motor 7 or the second hydraulic motor 8 or the hydraulic oil tank 5, and thus, when the low-pressure flushing and the high-pressure flushing do not need to work, the hydraulic oil flows back into the hydraulic oil tank 5 from the three-position four-way electromagnetic reversing valve to realize complete circulation.
The embodiment further comprises a pressure relief pipeline 13, the hydraulic pump 4 is connected with the reversing valve 6 through a first pipeline 15, one end of the pressure relief pipeline 13 is connected with the first pipeline 15, the other end of the pressure relief pipeline 13 is connected with the hydraulic oil tank 5, and an overflow valve 14 is arranged on the pressure relief pipeline 13. In this embodiment, the pressure relief pipeline 13 and the relief valve 14 are provided, and when the pressure of the hydraulic oil in the first pipeline 15 is too high, part of the hydraulic oil flows back to the hydraulic oil tank 5 through the relief valve 14, so that the pressure of the hydraulic oil entering the reversing valve 6 is adjusted.
In this embodiment, the first pipeline 15 is connected to a pressure measuring pipeline 16, and a pressure gauge 17 is disposed on the pressure measuring pipeline 16. In this embodiment a pressure gauge 17 is provided for observing the pressure of the hydraulic oil in the first conduit 15.
In this embodiment, the oil outlet end of the first hydraulic motor 7 is connected to the third pipeline 19, the oil outlet end of the second hydraulic motor 8 is connected to the fourth pipeline 20, the third pipeline 19 and the fourth pipeline 20 are both connected to the fifth pipeline 21, the fifth pipeline 21 is connected to the hydraulic oil tank 5, the third pipeline 19 is provided with a first check valve 23, the first check valve 23 allows hydraulic oil to flow from the first hydraulic motor 7 to the fifth pipeline 21, the fourth pipeline 20 is provided with a second check valve 24, and the second check valve 24 allows hydraulic oil to flow from the second hydraulic motor 8 to the fifth pipeline 21.
In this embodiment, the hydraulic oil flows back from the first hydraulic motor 7 and the second hydraulic motor 8 to the hydraulic oil tank 5 through the third pipeline 19, the fourth pipeline 20 and the fifth pipeline 21, and the unidirectional circulation of the hydraulic oil is realized through the arrangement of the first unidirectional valve 23 and the second unidirectional valve 24, so that the diversion of the hydraulic oil is prevented, and the stability of the circulation of the hydraulic oil is ensured.
The hydraulic pump 4 and the hydraulic oil tank 5 are connected through a second pipeline 18, one end of the sixth pipeline 22 is connected with a fifth pipeline 21, the other end of the sixth pipeline 22 is connected with the second pipeline 18, a third one-way valve 25 is arranged on the fifth pipeline 21, the third one-way valve 25 is positioned between a connecting point of the sixth pipeline 22 and the fifth pipeline 21 and the hydraulic oil tank 5, and the third one-way valve 25 allows hydraulic oil to flow to the hydraulic oil tank 5.
In this embodiment, the sixth pipeline 22 is provided, and the hydraulic oil entering the fifth pipeline 21 can flow to the second pipeline 18 and then to the hydraulic pump 4 through the sixth pipeline 22 in the working process, so that the hydraulic oil circulation efficiency is higher in working, and the third check valve 25 also has the function of preventing the hydraulic oil from diversion, so as to ensure the stability of the hydraulic oil circulation.
In this embodiment, a radiator 26 is disposed on the fifth pipeline 21, and the radiator 26 is located between the third check valve 25 and the hydraulic oil tank 5 to dissipate heat of hydraulic oil.
In this embodiment, the second pipeline 18 is provided with a filter 27, and the filter 27 is located between the connection point of the sixth pipeline 22 and the second pipeline 18 and the hydraulic oil tank 5, so that the hydraulic oil entering the hydraulic pump 4 from the oil tank 5 is cleaner after being filtered, and the hydraulic circulation system is prevented from being blocked.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (8)
1. The road washing vehicle comprises an engine (1), a gearbox (2) and a power takeoff (3), wherein the engine (1) is connected with the gearbox (2), and the gearbox (2) is connected with the power takeoff (3), and is characterized by further comprising a hydraulic pump (4), a hydraulic oil tank (5), a reversing valve (6), a first hydraulic motor (7), a second hydraulic motor (8), a low-pressure water pump (9), a high-pressure water pump (10), a low-pressure washing mechanism (11) and a high-pressure washing mechanism (12);
an output shaft of the power takeoff (3) is connected with the hydraulic pump (4), and the power takeoff (3) can drive the hydraulic pump (4) to work;
the oil inlet end of the hydraulic pump (4) is connected with the hydraulic oil tank (5), the oil outlet end of the hydraulic pump (4) is connected with the input end of the reversing valve (6), the oil inlet end of the first hydraulic motor (7) and the oil inlet end of the second hydraulic motor (8) are respectively connected with the two output ends of the reversing valve (6), and the oil outlet ends of the first hydraulic motor (7) and the second hydraulic motor (8) are both connected with the hydraulic oil tank (5);
the first hydraulic motor (7) is connected with the low-pressure water pump (9), the first hydraulic motor (7) can drive the low-pressure water pump (9) to work, the water inlet end of the low-pressure water pump (9) is connected with the water tank, and the water outlet end of the low-pressure water pump (9) is connected with the low-pressure flushing mechanism (11);
the second hydraulic motor (8) is connected with the high-pressure water pump (10), the second hydraulic motor (8) can drive the high-pressure water pump (10) to work, the water inlet end of the high-pressure water pump (10) is connected with the water tank, and the water outlet end of the high-pressure water pump (10) is connected with the high-pressure flushing mechanism (12).
2. The road flushing vehicle according to claim 1, characterized in that the reversing valve (6) is a three-position four-way electromagnetic reversing valve, the oil outlet end of the hydraulic pump (4) is connected with the input end of the reversing valve (6), and the three output ends of the three-position four-way electromagnetic reversing valve are respectively connected with the first hydraulic motor (7), the second hydraulic motor (8) and the hydraulic oil tank (5).
3. The road flushing vehicle according to claim 1, further comprising a pressure relief pipeline (13), wherein the hydraulic pump (4) is connected with the reversing valve (6) through a first pipeline (15), one end of the pressure relief pipeline (13) is connected with the first pipeline (15), the other end of the pressure relief pipeline (13) is connected with the hydraulic oil tank (5), and an overflow valve (14) is arranged on the pressure relief pipeline (13).
4. A road washing vehicle according to claim 3, characterized in that the first pipeline (15) is connected with a pressure measuring pipeline (16), and the pressure measuring pipeline (16) is provided with a pressure gauge (17).
5. A road flushing vehicle according to claim 1, characterized in that the oil outlet end of the first hydraulic motor (7) is connected with a third pipeline (19), the oil outlet end of the second hydraulic motor (8) is connected with a fourth pipeline (20), the third pipeline (19) and the fourth pipeline (20) are both connected with a fifth pipeline (21), the fifth pipeline (21) is connected with the hydraulic oil tank (5), a first check valve (23) is arranged on the third pipeline (19), the first check valve (23) allows hydraulic oil to flow from the first hydraulic motor (7) to the fifth pipeline (21), a second check valve (24) is arranged on the fourth pipeline (20), and the second check valve (24) allows hydraulic oil to flow from the second hydraulic motor (8) to the fifth pipeline (21).
6. The road flushing vehicle according to claim 5, further comprising a sixth pipeline (22), wherein the hydraulic pump (4) is connected with the hydraulic oil tank (5) through a second pipeline (18), one end of the sixth pipeline (22) is connected with the fifth pipeline (21), the other end of the sixth pipeline (22) is connected with the second pipeline (18), a third one-way valve (25) is arranged on the fifth pipeline (21), the third one-way valve (25) is located between a connecting point of the sixth pipeline (22) and the fifth pipeline (21) and the hydraulic oil tank (5), and the third one-way valve (25) allows hydraulic oil to flow to the hydraulic oil tank (5).
7. A road washing vehicle according to claim 6, characterized in that the fifth pipeline (21) is provided with a radiator (26), the radiator (26) being located between the third non-return valve (25) and the hydraulic tank (5).
8. A road flushing vehicle according to claim 6, characterized in that the second line (18) is provided with a filter (27), the filter (27) being located between the connection point of the sixth line (22) and the second line (18) and the hydraulic tank (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150359.1U CN219568703U (en) | 2023-01-28 | 2023-01-28 | Road washing vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320150359.1U CN219568703U (en) | 2023-01-28 | 2023-01-28 | Road washing vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219568703U true CN219568703U (en) | 2023-08-22 |
Family
ID=87662858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320150359.1U Active CN219568703U (en) | 2023-01-28 | 2023-01-28 | Road washing vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219568703U (en) |
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2023
- 2023-01-28 CN CN202320150359.1U patent/CN219568703U/en active Active
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