CN204512029U - Realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle - Google Patents
Realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle Download PDFInfo
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- CN204512029U CN204512029U CN201520128973.3U CN201520128973U CN204512029U CN 204512029 U CN204512029 U CN 204512029U CN 201520128973 U CN201520128973 U CN 201520128973U CN 204512029 U CN204512029 U CN 204512029U
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- valve
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- hydraulic
- suction nozzle
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Abstract
The utility model discloses a kind of sanitation cart that realizes and sweep the floating hydraulic system of dish/suction nozzle, it comprises hydraulic gear pump, stacked compression release valve, PB valve plate, two-position four way change valve, stacked unidirectional throttle valve, one-way throttle valve, two position two-way valve, sweeps dish oil cylinder, suction nozzle oil cylinder, hydraulic oil container and hydraulic pipe line; The oil outlet of hydraulic gear pump is connected with the p1 mouth of stacked compression release valve, the P mouth of two-position four-way valve respectively by hydraulic pipe line; Stacked compression release valve p2 mouth is connected with PB valve plate B mouth; PB valve plate P mouth is connected with two-position four-way valve T mouth, and PB valve plate A mouth and stacked compression release valve drain tap take back fuel tank; Two-position four-way valve A mouth is connected with stacked unidirectional throttle valve; Another hydraulic fluid port of stacked unidirectional throttle valve is connected with one-way throttle valve; Another hydraulic fluid port of one-way throttle valve is connected with a mouth of two position two-way valve; Another mouthful of two position two-way valve is connected with the rod chamber sweeping dish oil cylinder/suction nozzle oil cylinder, and its rodless cavity is connected with hydraulic oil container; PB valve plate T mouth and the obstructed oil of two-position four-way valve B mouth, whole hydraulic system forms open circuit.It is good that this hydraulic system can make sanitation cart sweep dish/suction nozzle floating effect, solves the problem that the associated components quick abrasion such as brush and suction nozzle roller needs frequently to change.
Description
Technical field
The utility model relates to road sanitation cart equipment, particularly realizes sanitation cart and sweeps the floating hydraulic system of dish/suction nozzle.
Background technique
At present, urban road cleaning work realizes do mechanization operation mode substantially, is completed by road-cleaning operation special-purpose vehicle.Dish/the suction nozzle of sweeping of existing road cleaning vehicle generally adopts cylinder or oil cylinder to perform lifting action, there is following defect:
Existing sweeper is when performing cleaning work, suction nozzle rubber wheel almost bear under all suction nozzle weights with earth surface, make the associated components wearing and tearing such as suction nozzle roller very fast, need frequent replacing, for a change this situation, have employed spring draws suction nozzle to realize the mechanical floating function of suction nozzle, but, because the spring of this mode structure is changeless, its pulling force can not adjust, when the car weight of sweeper changes, the spring tension needed for suction nozzle float function can not be made also to change thereupon, have a strong impact on the floating effect of suction nozzle, the associated components quick abrasions such as suction nozzle roller can not be solved and need the frequent problem changed, existing dish of sweeping adopts the non-floating structure supported by the adjustment of adjusting screw rod and adjusting nut, although sweeping dish can not completely and earth surface, but sweep the state that dish is still in nature sinking, most power and earth surface are also born in brush, cause brush to wear and tear equally and change adjustment rapidly and frequently.
Summary of the invention
The purpose of this utility model is to provide a kind of sanitation cart that realizes and sweeps the floating hydraulic system of dish/suction nozzle, and make sanitation cart sweep dish/suction nozzle floating effect good, solution sanitation cart sweeps the problem that the associated components quick abrasion such as sweeping brush and suction nozzle roller needs frequently change.
For realizing above object, the utility model realize sanitation cart sweep dish/suction nozzle float hydraulic system comprise hydraulic gear pump, stacked compression release valve, PB valve plate, two-position four way change valve, stacked unidirectional throttle valve, one-way throttle valve, two position two-way valve, sweep dish oil cylinder, suction nozzle oil cylinder, hydraulic oil container and hydraulic pipe line; The oil outlet of described hydraulic gear pump is connected with the p1 mouth of stacked compression release valve, the P mouth of two-position four-way valve respectively by hydraulic pipe line; The p2 mouth of described stacked compression release valve is connected with the B mouth of PB valve plate by oil circuit; The P mouth of described PB valve plate is connected with the T mouth of two-position four-way valve by hydraulic circuit, and the A mouth of PB valve plate is connected oil sump tank by oil circuit with stacked compression release valve drain tap; The A mouth of described two-position four-way valve is connected with stacked unidirectional throttle valve by oil circuit; Another hydraulic fluid port of described stacked unidirectional throttle valve is connected by oil circuit with one-way throttle valve; Another hydraulic fluid port of described one-way throttle valve is connected with a mouth of two position two-way valve by oil circuit; Another mouthful of described two position two-way valve is connected with the rod chamber sweeping dish oil cylinder/suction nozzle oil cylinder by oil circuit; The rodless cavity sweeping dish oil cylinder/suction nozzle oil cylinder is connected with hydraulic oil container by oil circuit; The T mouth of described PB valve plate and the obstructed oil of B mouth of two-position four-way valve, whole hydraulic system forms an open circuit.
Said structure realize sanitation cart sweep dish/suction nozzle float hydraulic system have employed open type hydrostatic driveline system, by stacked compression release valve, reduction valve outlet pressure is set, operationally to sweeping dish or the constant opposition of suction nozzle one, make to sweep the oriented floating trend of dish/suction nozzle, thus realize the hydraulic type float function sweeping dish/suction nozzle, have the following advantages:
1, with existing mechanical floating simplified in comparison nozzle structure, suction nozzle can be realized float, also can not affect suction nozzle float function when sweeper car weight changes simultaneously, the endurance that suction nozzle floats can be guaranteed, thus substantially prolongs the working life of suction nozzle rubber wheel.
2, sweep with existing mechanical type and coil and adjust compared with (non-float), achieve and sweep dish and float, extend brush working life, decrease brush and change and sweep dish adjustment number of times.
Pass through repetition test, the utility model realize sanitation cart sweep dish/suction nozzle float hydraulic system pass through stacked compression release valve, to sweeping the constant opposition of dish/suction nozzle one, can guarantee that the floating endurance of dish/suction nozzle operationally swept by sweeper, substantially prolongs the working life of sweeping sweeping brush and suction nozzle rubber wheel.
Accompanying drawing explanation
Accompanying drawing be the utility model realize sanitation cart sweep dish/suction nozzle float hydraulic system structure schematic diagram.
Reference character: hydraulic gear pump 1, hydraulic oil container 2, stacked compression release valve I 3, PB valve plate I 4, stacked compression release valve II 5, PB valve plate II 6, two-position four-way valve I 7, two-position four-way valve II 8, stacked unidirectional throttle valve I 9, stacked unidirectional throttle valve II 10, one-way throttle valve I 11, one-way throttle valve II 12, two position two-way valve II 13, two position two-way valve I 14, sweep dish oil cylinder 15, suction nozzle oil cylinder 16.
Embodiment
Below in conjunction with the drawings and specific embodiments to the utility model realize sanitation cart sweep dish/suction nozzle float hydraulic system be described in further detail.
(1) as shown in the figure, the utility model realizes sanitation cart and sweeps the hydraulic system that dish/suction nozzle floats and comprise hydraulic gear pump 1, hydraulic oil container 2, stacked compression release valve I 3, PB valve plate I 4, stacked compression release valve II 5, PB valve plate II 6, two-position four-way valve I 7, two-position four-way valve II 8, stacked unidirectional throttle valve I 9, stacked unidirectional throttle valve II 10, one-way throttle valve I 11, one-way throttle valve II 12, two position two-way valve II 13, two position two-way valve I 14, sweep dish oil cylinder 15 and suction nozzle oil cylinder 16; The oil outlet of hydraulic gear pump 1 is connected with the p1 mouth of stacked compression release valve I 3, the P mouth of two-position four-way valve I 7 respectively by hydraulic pipe line; The p2 mouth of stacked compression release valve I 3 is connected with the B mouth of PB valve plate I 4 by oil circuit; The P mouth of PB valve plate I 4 is connected with the T mouth of two-position four-way valve I 7 by hydraulic circuit, and the A mouth of PB valve plate I 4 is connected oil sump tank 2 by oil circuit with the drain tap of stacked compression release valve I 3; The A mouth of two-position four-way valve I 7 is connected with stacked unidirectional throttle valve I 9 by oil circuit; Another hydraulic fluid port of stacked unidirectional throttle valve I 9 is connected by oil circuit with one-way throttle valve I 11; Another hydraulic fluid port of one-way throttle valve I 11 is connected by with two position two-way valve I 14 1 mouthful of oil circuit; 2 mouthfuls of two position two-way valve I 14 are connected by the rod chamber of oil circuit with suction nozzle oil cylinder 16; The rodless cavity of suction nozzle oil cylinder 16 is connected with hydraulic oil container 2 by oil circuit; The T mouth of PB valve plate I 4 and the obstructed oil of B mouth of two-position four way change valve I 7;
(2) same, the oil outlet of hydraulic gear pump 1 is connected with the p1 mouth of stacked compression release valve II 5, the P mouth of two-position four-way valve II 8 respectively by hydraulic pipe line; The p2 mouth of stacked compression release valve II 5 is connected with the B mouth of PB valve plate II 6 by oil circuit; The P mouth of PB valve plate II 6 is connected with the T mouth of two-position four-way valve II 8 by hydraulic circuit; The A mouth of PB valve plate II 6 is connected oil sump tank 2 by oil circuit with the drain tap of stacked compression release valve II 5; The A mouth of two-position four-way valve II 8 is connected with stacked unidirectional throttle valve II 10 by oil circuit; Another hydraulic fluid port of stacked unidirectional throttle valve II 10 is connected by oil circuit with one-way throttle valve II 12; Another hydraulic fluid port of one-way throttle valve II 12 is connected by with two position two-way valve II 13 1 mouthful of oil circuit; 2 mouthfuls of two position two-way valve II 13 by oil circuit with sweep the rod chamber coiling oil cylinder 15 and be connected; The rodless cavity sweeping dish oil cylinder 15 is connected with hydraulic oil container 2 by oil circuit; The T mouth of PB valve plate II 6 and the obstructed oil of B mouth of two-position four way change valve II 8;
The hydraulic system that whole realization sweeps dish/suction nozzle floating defines an open circuit.
When sweeper carries out cleaning work, two-position four-way valve I 7, two-position four-way valve II 8, two position two-way valve II 13, two position two-way valve I 14 all electric be in right position work; Course of action is as follows:
(1) under suction nozzle Action of Gravity Field, suction nozzle oil cylinder 16 rod chamber hydraulic oil is through two position two-way valve I 14, one-way throttle valve I 11, stacked unidirectional throttle valve I 9, two-position four-way valve I 7, PB valve plate I 4 is to stacked compression release valve I 3, hydraulic oil container 2 is returned by the drain tap draining of stacked compression release valve I 3, realize suction nozzle to decline: when stacked compression release valve I 3 pressure is transferred to certain value, the p2 mouth pressure value of stacked compression release valve I 3 is constant, in suction nozzle decline process, because gravity is greater than stacked compression release valve I 3 to the reaction force of suction nozzle, namely the p2 mouth pressure of stacked compression release valve I 3 is greater than the force value of setting, hydraulic oil is from the drain tap draining oil sump tank of stacked compression release valve 3, thus suction nozzle is declined, when suction nozzle rubber wheel touches ground, the reaction force of stacked compression release valve I 3 pairs of suction nozzles and ground in the face of the reaction force sum of suction nozzle equals to sweep coil or suction nozzle is conducted oneself with dignity time, suction nozzle no longer sinks, thus realizes suction nozzle float function.
(2) sweeping under dish Action of Gravity Field, sweep dish oil cylinder 15 rod chamber hydraulic oil through two position two-way valve II 13, one-way throttle valve II 12, stacked unidirectional throttle valve II 10, two-position four-way valve II 8, PB valve plate II 6 is to stacked compression release valve II 5, hydraulic oil container 2 is returned by the drain tap draining of stacked compression release valve II 5, realization is swept dish and is declined: when stacked compression release valve II 5 is transferred to certain value, the p2 mouth pressure value of stacked compression release valve II 5 is constant, sweep in dish decline process, because gravity is greater than stacked compression release valve II 5 to the reaction force sweeping dish, namely the p2 mouth pressure of stacked compression release valve II 5 is greater than the force value of setting, hydraulic oil is from the drain tap draining oil sump tank of stacked compression release valve II 5, thus make to sweep dish decline, touch ground when sweeping sweeping brush, stacked compression release valve II 5 to sweep the reaction force of dish and ground in the face of the reaction force sum of sweeping dish equals to sweep coil conduct oneself with dignity time, suction nozzle no longer sinks, thus realizes suction nozzle float function.
Certainly, can realize sweeping under the prerequisite that dish/suction nozzle normally works, require that stacked compression release valve I 5/ stacked compression release valve II 3 is maximum to the reaction force sweeping dish/suction nozzle, but namely sweep dish/suction nozzle upwards to float close to leaving the critical value that ground is not left on ground, best floating effect could be realized, now, the area of contact of sweeping sweeping brush/suction nozzle rubber wheel and ground is minimum, interaction force is also minimum, make corresponding minimum in the face of sweeping the wearing and tearing of sweeping brush and suction nozzle rubber wheel, greatly can extend the working life of brush and rubber wheel.
Claims (1)
1. realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle, it is characterized in that: it comprises hydraulic gear pump, stacked compression release valve, PB valve plate, two-position four way change valve, stacked unidirectional throttle valve, one-way throttle valve, two position two-way valve, sweeps dish oil cylinder, suction nozzle oil cylinder, hydraulic oil container and hydraulic pipe line; The oil outlet of described hydraulic gear pump is connected with the p1 mouth of stacked compression release valve, the P mouth of two-position four-way valve respectively by hydraulic pipe line; The p2 mouth of described stacked compression release valve is connected with the B mouth of PB valve plate by oil circuit; The P mouth of described PB valve plate is connected with the T mouth of two-position four-way valve by hydraulic circuit, and the A mouth of PB valve plate is connected oil sump tank by oil circuit with stacked compression release valve drain tap; The A mouth of described two-position four-way valve is connected with stacked unidirectional throttle valve by oil circuit; Another hydraulic fluid port of described stacked unidirectional throttle valve is connected by oil circuit with one-way throttle valve; Another hydraulic fluid port of described one-way throttle valve is connected with a mouth of two position two-way valve by oil circuit; Another mouthful of described two position two-way valve is connected with the rod chamber sweeping dish oil cylinder/suction nozzle oil cylinder by oil circuit; The rodless cavity sweeping dish oil cylinder/suction nozzle oil cylinder is connected with hydraulic oil container by oil circuit; The T mouth of described PB valve plate and the obstructed oil of B mouth of two-position four-way valve, whole hydraulic system forms an open circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128973.3U CN204512029U (en) | 2015-03-06 | 2015-03-06 | Realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520128973.3U CN204512029U (en) | 2015-03-06 | 2015-03-06 | Realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512029U true CN204512029U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520128973.3U Withdrawn - After Issue CN204512029U (en) | 2015-03-06 | 2015-03-06 | Realize sanitation cart and sweep the floating hydraulic system of dish/suction nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776073A (en) * | 2015-03-06 | 2015-07-15 | 福建龙马环卫装备股份有限公司 | Hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating |
| CN105715598A (en) * | 2016-05-03 | 2016-06-29 | 徐州徐工环境技术有限公司 | Floating hydraulic system of road sweeper work device |
-
2015
- 2015-03-06 CN CN201520128973.3U patent/CN204512029U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776073A (en) * | 2015-03-06 | 2015-07-15 | 福建龙马环卫装备股份有限公司 | Hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating |
| CN104776073B (en) * | 2015-03-06 | 2016-10-05 | 福建龙马环卫装备股份有限公司 | Realize sanitation cart and sweep the hydraulic system that dish/suction nozzle floats |
| CN105715598A (en) * | 2016-05-03 | 2016-06-29 | 徐州徐工环境技术有限公司 | Floating hydraulic system of road sweeper work device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |