CN205190402U - Small -size full hydraulic drive road sweeper hydraulic motor drive system - Google Patents
Small -size full hydraulic drive road sweeper hydraulic motor drive system Download PDFInfo
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- CN205190402U CN205190402U CN201521000688.XU CN201521000688U CN205190402U CN 205190402 U CN205190402 U CN 205190402U CN 201521000688 U CN201521000688 U CN 201521000688U CN 205190402 U CN205190402 U CN 205190402U
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Abstract
The utility model discloses a small -size full hydraulic drive road sweeper hydraulic motor drive system, include hydraulic oil pump, overflow valve, proportion type flow control valve, sweep a set motor, check valve and fan motor, hydraulic oil pump links to each other with overflow valve and proportion type flow control valve respectively, and the overflow valve produces oil and meets back hydraulic tank, proportion type flow control valve's preferential hydraulic fluid port is swept a set motor with the second overflow valve with two of establishing ties each other respectively and is connected, and the overflow valve produces oil and connects the oil sump tank, the second is swept set motor and is linked to each other with the check valve, and another hydraulic fluid port of check valve connects the oil sump tank, proportion type flow control valve bypass hydraulic fluid port links to each other with second proportion type flow control valve, and the latter's preferential hydraulic fluid port links to each other with fan motor oil inlet and third check valve respectively, and another hydraulic fluid port of this check valve connects the oil sump tank, the fan motor links to each other with the second check valve, and another hydraulic fluid port of this check valve connects the oil sump tank, and the off -load mouth of fan motor links to each other with the oil tank alone. This actuating system has the characteristics that occupation space is little, the cost of manufacture is low.
Description
Technical field
The utility model relates to sweeping machine hydraulic system, and particularly small-sized full-hydraulic drives the blower motor of sweeping machine and sweeps the drive hydraulic system principle of table motor.
Background technique
At present, most domestic city achieves the mechanization of major urban arterial highway substantially, and nearly the street, square, park etc. of half need to lean on compact structure, operate nimble small-sized street sweeper to clean for accounting for city sweep-out pattern.The blower motor of existing small-sized all-hydraulic-driven road sweeper and sweep dish equipment of etc.ing and generally adopt independent pump to provide pressure oil, the Variable plunger pump that driving is walked coaxially is connected one group of gear pump, provides hydraulic power to other working cells; Variable plunger pump drives road sweeper to advance, and two other pump, respectively in the mode of open circuit, controls blower motor through respective valve group and sweeps dish equipment.Because the space of small-sized street sweeper own is just compacter, increase a pump and comparatively take up room, cost is also higher.
Summary of the invention
The purpose of this utility model is to provide a kind of small-sized all-hydraulic-driven road sweeper fluid motor-driven system taking up room little, fabricating cost is low.
For realizing above object, the utility model small-sized all-hydraulic-driven road sweeper fluid motor-driven system comprises hydraulic-pressure pump, the first relief valve, the first proportional-type flow control valve, the second proportional-type flow control valve, the second relief valve, first are swept table motor, second and swept table motor, the first one-way valve, the second one-way valve, the 3rd one-way valve, blower motor and hydraulic pipe line; Described hydraulic-pressure pump is fuel-displaced to be connected with the oil-feed of the first relief valve with the first proportional-type flow control valve respectively, and the first relief valve is fuel-displaced takes back hydraulic oil container; The preferential hydraulic fluid port of the first proportional-type flow control valve is swept table motor filler opening with the second relief valve and first respectively and is connected, and the second relief valve is fuel-displaced takes back fuel tank; First sweeps that table motor is fuel-displaced to be swept table motor filler opening be connected with second, sweeps table motor for two and is connected in series; Second sweeps table motor oil outlet is connected with the first one-way valve again, and another hydraulic fluid port of the first one-way valve takes back fuel tank; First proportional-type flow control valve bypass hydraulic fluid port is connected with the second proportional-type flow control valve filler opening, the preferential hydraulic fluid port of the second proportional-type flow control valve is connected with the 3rd one-way valve with blower motor filler opening respectively, 3rd another hydraulic fluid port of one-way valve takes back fuel tank, blower motor oil outlet is connected with the second one-way valve, another hydraulic fluid port of second one-way valve takes back fuel tank, and the unloading port of blower motor is connected with fuel tank separately.
The hydraulic fluid port that pumps of said structure small-sized all-hydraulic-driven road sweeper fluid motor-driven system divides two-way, and a road connects relief valve, and for whole system provides oil pressure relief, another road connects the first proportional-type flow control valve oil-feed; The preferential hydraulic fluid port of first proportional-type flow control valve directly with sweep table motor oil-feed and be connected, the suitable flow of preferential output just can be controlled to sweeping table motor like this by Controlling solenoid valve size of current, control horse is swept dish and reaches rotating speed, and the first preferential oil outlet place of a proportional-type flow control valve relief valve in parallel controls the pressure sweeping table motor branch road simultaneously; Sweep table motor for two to be connected in series guarantee two to sweep dish rotating speed consistent, sweep table motor oil return for second and to connect oil sump tank after an one-way valve again, this one-way valve allows fluid, and from sweeping, table motor is fuel-displaced flows to fuel tank, oppositely ends.
The bypass hydraulic fluid port of the first proportional-type flow control valve is connected with the second proportional-type flow control valve filler opening, makes the flow be left be transported on next proportional-type flow control valve again; Second preferential hydraulic fluid port of proportional-type flow control valve is connected with blower motor filler opening, is also preferentially to export suitable flow fan motor by Controlling solenoid valve size of current, controls blower motor rotating speed; Blower motor oil outlet and an one-way valve of connecting between fuel tank, this one-way valve allows fluid flow direction to be that blower motor is fuel-displaced to fuel tank, can ensure that sharing return line when sweeping table motor and blower motor work is independent of each other in conjunction with the one-way valve sweeping table motor oil return place; Blower motor oil-feed place and an one-way valve of also having connected between fuel tank, this one-way valve allows fluid flow direction to be that fuel tank is toward blower motor filler opening, when driving blower motor to rotate when blower fan quits work because inertia blower fan is rotated further, blower motor can from return line repairing, and protection blower motor and whole hydraulic system are normally run; So just only need a pump by whole system just being made normally to work to the priority acccess control of flow.
Accompanying drawing explanation
Fig. 1 is the utility model small-sized all-hydraulic-driven road sweeper fluid motor-driven system architecture schematic diagram.
Reference character: hydraulic-pressure pump 1, first relief valve 2, first proportional-type flow control valve 3, second proportional-type flow control valve 4, second relief valve 5, first is swept table motor 6, second and swept table motor 7, first one-way valve 8, second one-way valve 9, the 3rd one-way valve 10, blower motor 11.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model small-sized all-hydraulic-driven road sweeper fluid motor-driven system is described in further detail.
As shown in Figure 1, the utility model small-sized all-hydraulic-driven road sweeper fluid motor-driven system comprises hydraulic-pressure pump 1, first relief valve 2, first proportional-type flow control valve 3, second proportional-type flow control valve 4, second relief valve 5, first and sweeps table motor 6, second and sweep table motor 7, first one-way valve 8, second one-way valve 9, the 3rd one-way valve 10, blower motor 11 and hydraulic pipe line; Described hydraulic-pressure pump 1 is fuel-displaced to be connected with the first proportional-type flow control valve 3 oil-feed with the first relief valve 2 respectively, the fuel-displaced direct time hydraulic oil container of the first relief valve 2; The preferential hydraulic fluid port of first proportional-type flow control valve 3 is swept table motor 6 filler opening with the second relief valve 5 and first respectively and is connected, the fuel-displaced direct oil sump tank of the second relief valve 5; First sweeps that table motor 6 is fuel-displaced to be swept table motor 7 filler opening be connected with second, sweeps table motor for two and is connected in series; Second sweeps table motor 7 oil outlet is connected with the first one-way valve 8 again, and first another hydraulic fluid port of one-way valve 8 directly takes back fuel tank; First proportional-type flow control valve 3 bypass hydraulic fluid port is connected with the second proportional-type flow control valve 4 filler opening, the preferential hydraulic fluid port of the second proportional-type flow control valve 4 is connected with the 3rd one-way valve 10 with blower motor 11 filler opening respectively, 3rd another hydraulic fluid port of one-way valve 10 directly takes back fuel tank, blower motor 11 oil outlet is connected with the second one-way valve 9, second another hydraulic fluid port of one-way valve 9 is also directly take back fuel tank, and the unloading port of blower motor 11 is direct to be separately connected with fuel tank.
When the systems are operating normally, the electromagnetic valve current changing the first proportional-type flow control valve 3 input just can control the uninterrupted of its preferential hydraulic fluid port, thus control first to sweep the rotating speed size that table motor 6 and second sweeps table motor 7, sweep table motor for two and be connected in series and ensure that two to sweep dish rotating speed consistent, the flow that hydraulic-pressure pump 1 exports through the preferential output flow of the first proportional-type flow control valve 3 to sweeping table motor performance loop, remaining flow can output to the second proportional-type flow control valve 4 filler opening by the first proportional-type flow control valve 3 bypass hydraulic fluid port, the rotating speed of blower motor 11 is just controlled by the second proportional-type flow control valve 4, the electromagnetic valve current changing the second proportional-type flow control valve 4 input just can control the uninterrupted of its preferential hydraulic fluid port, reach the object controlling rotation speed of fan, unnecessary flow just gets back to hydraulic oil container by the bypass hydraulic fluid port of the second proportional-type flow control valve 4.
First relief valve 2 can control the oil pressure relief of whole system, and the pressure sweeping table motor branch road is just controlled by the second relief valve 5; First one-way valve 8 allow fluid to sweep from second table motor 7 is fuel-displaced flows to fuel tank, oppositely end; Second one-way valve 9 allows fluid to flow to fuel tank from blower motor 11 is fuel-displaced, oppositely ends; When such first one-way valve 8 and the second one-way valve 9 share return line when can ensure to sweep table motor and blower motor work, both are independent of each other, and such line arrangement is also comparatively simple and save installing space; 3rd one-way valve 10 allows fluid to flow to from fuel tank and sweeps blower motor 11 oil-feed; reverse cut-off; like this when blower fan quits work; blower fan drives blower motor 11 to rotate because inertia is rotated further; blower motor 11 can from return line repairing, and protection blower motor 11 and whole hydraulic system are normally run.
Claims (1)
1. a small-sized all-hydraulic-driven road sweeper fluid motor-driven system, is characterized in that: it comprises hydraulic-pressure pump, the first relief valve, the first proportional-type flow control valve, the second proportional-type flow control valve, the second relief valve, first are swept table motor, second and swept table motor, the first one-way valve, the second one-way valve, the 3rd one-way valve, blower motor and hydraulic pipe line; Described hydraulic-pressure pump is fuel-displaced to be connected with the oil-feed of the first relief valve with the first proportional-type flow control valve respectively, and the first relief valve is fuel-displaced takes back hydraulic oil container; The preferential hydraulic fluid port of the first proportional-type flow control valve is swept table motor filler opening with the second relief valve and first respectively and is connected, and the second relief valve is fuel-displaced takes back fuel tank; First sweeps that table motor is fuel-displaced to be swept table motor filler opening be connected with second, sweeps table motor for two and is connected in series; Second sweeps table motor oil outlet is connected with the first one-way valve again, and another hydraulic fluid port of the first one-way valve takes back fuel tank; First proportional-type flow control valve bypass hydraulic fluid port is connected with the second proportional-type flow control valve filler opening, the preferential hydraulic fluid port of the second proportional-type flow control valve is connected with the 3rd one-way valve with blower motor filler opening respectively, 3rd another hydraulic fluid port of one-way valve takes back fuel tank, blower motor oil outlet is connected with the second one-way valve, another hydraulic fluid port of second one-way valve takes back fuel tank, and the unloading port of blower motor is connected with fuel tank separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000688.XU CN205190402U (en) | 2015-12-07 | 2015-12-07 | Small -size full hydraulic drive road sweeper hydraulic motor drive system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521000688.XU CN205190402U (en) | 2015-12-07 | 2015-12-07 | Small -size full hydraulic drive road sweeper hydraulic motor drive system |
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| CN205190402U true CN205190402U (en) | 2016-04-27 |
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| CN201521000688.XU Active CN205190402U (en) | 2015-12-07 | 2015-12-07 | Small -size full hydraulic drive road sweeper hydraulic motor drive system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706866A (en) * | 2018-12-21 | 2019-05-03 | 广东易山重工股份有限公司 | A kind of sweeper stepless speed regulation energy-saving hydraulic system |
| CN110453631A (en) * | 2019-09-12 | 2019-11-15 | 徐州徐工环境技术有限公司 | Cleaning vehicle for guardrail |
| CN110821905A (en) * | 2019-11-13 | 2020-02-21 | 山东路得威工程机械制造有限公司 | Energy-saving hydraulic vibrating rod speed regulation hydraulic circuit |
| CN110864017A (en) * | 2018-08-27 | 2020-03-06 | 河南森源重工有限公司 | Hydraulic control system and snow melting vehicle |
-
2015
- 2015-12-07 CN CN201521000688.XU patent/CN205190402U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864017A (en) * | 2018-08-27 | 2020-03-06 | 河南森源重工有限公司 | Hydraulic control system and snow melting vehicle |
| CN109706866A (en) * | 2018-12-21 | 2019-05-03 | 广东易山重工股份有限公司 | A kind of sweeper stepless speed regulation energy-saving hydraulic system |
| CN110453631A (en) * | 2019-09-12 | 2019-11-15 | 徐州徐工环境技术有限公司 | Cleaning vehicle for guardrail |
| CN110821905A (en) * | 2019-11-13 | 2020-02-21 | 山东路得威工程机械制造有限公司 | Energy-saving hydraulic vibrating rod speed regulation hydraulic circuit |
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