CN205089710U - Balancing unit of environmental sanitation special car suction nozzle - Google Patents
Balancing unit of environmental sanitation special car suction nozzle Download PDFInfo
- Publication number
- CN205089710U CN205089710U CN201520750616.0U CN201520750616U CN205089710U CN 205089710 U CN205089710 U CN 205089710U CN 201520750616 U CN201520750616 U CN 201520750616U CN 205089710 U CN205089710 U CN 205089710U
- Authority
- CN
- China
- Prior art keywords
- way valve
- suction nozzle
- valve
- oil
- mouth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model provides a balancing unit of environmental sanitation special car suction nozzle, including hydraulic system, hydraulic oil pump's oil -out passes through the pipeline and connects in parallel with the oil inlet P of three -position four -way valve and the oil inlet P1 of two for two valve, the A of three -position four -way valve, B mouth respectively the no pole chamber through tube coupling suction nozzle lift cylinder, have the pole chamber, T is led to for A to the meso position function of three -position four -way valve, P, B are obstructed, the oil inlet P2 that the oil -out A1 of two for two valve passes through pipeline and relief pressure valve is connected, and the oil -out A2 of relief pressure valve is through tube coupling in the having between the pole chamber of the B of three -position four -way valve mouth and suction nozzle lift cylinder, and the drain tap T2 of relief pressure valve is parallelly connected with the T mouth of the T mouth of three -position four -way valve and control other action's valve. The beneficial effects of the utility model are that, carry out infinitely variable control, reducing wear, increase of service life to suction nozzle ground pressure during the environmental sanitation special car operation.
Description
Technical field
The utility model relates to sanitation equipment field, especially, and special sanitation vehicle suction nozzle ground pressure Equilibrator.
Background technique
Along with scientific and technological progress, the fast development of mechanical automation, sanitation equipment field also obtain high speed development, at present, a known special sanitation vehicle suction nozzle used adopts hydraulic pressure, pneumatic element flexibly connects as lifting drive by chain etc., gravity after suction nozzle ground connection only relies on mechanical spring to carry out ground pressure balance, and when suction nozzle and earth surface, the maximum pull design of spring is generally eight ten ten to percent 6 percent of suction nozzle self gravitation, otherwise cannot ensure the accurate ground connection of suction nozzle.
But in actual job process, suction nozzle upper surface can be subject to the atmospheric pressure because negative pressure in suction nozzle causes, the area of contour of suction nozzle upper surface is larger, this pressure is often also large than the gravity of suction nozzle self, the parts such as suction nozzle road wheel are under the double reaction plus being subject to suction nozzle deadweight and suction nozzle upper surface atmospheric pressure, and quick abrasion, working life are short.
Summary of the invention
Bear that pressure is large to overcome the parts such as existing special sanitation vehicle suction nozzle road wheel, problem that quick abrasion, working life are short, the utility model provides a kind of suction nozzle pressure equaliser, this device can balance suction nozzle road wheel bear more than 80 percent of pressure total value, the pressure-bearing of each parts of suction nozzle is greatly reduced in operation process, thus reduce wearing and tearing, increase the service life.
The utility model solves the technological scheme that its technical problem adopts:
An Equilibrator for special sanitation vehicle suction nozzle, comprises hydraulic system, and hydraulic system comprises hydraulic-pressure pump, hydraulic oil container, three-position four-way valve, 2/2-way valve, reduction valve, suction nozzle hoist cylinder,
The oil outlet of hydraulic-pressure pump is in parallel with the oil inlet P of three-position four-way valve and the oil inlet P 1 of 2/2-way valve by pipeline;
A, B mouth of three-position four-way valve connects rodless cavity, the rod chamber of suction nozzle hoist cylinder respectively by pipeline, the Median Function of three-position four-way valve is that A leads to T, and P, B are obstructed;
The oil outlet A1 of 2/2-way valve is connected with the oil inlet P 2 of reduction valve by pipeline, the oil outlet A2 of reduction valve is connected between the B mouth of three-position four-way valve and the rod chamber of suction nozzle hoist cylinder by pipeline, and the T mouth of the drain tap T2 of reduction valve and the T mouth of three-position four-way valve and the valve that controls other actions is in parallel;
When 2/2-way valve cuts out, control three-position four-way valve and can realize the independent lifting action of suction nozzle;
When work pattern, the multiple meta of three-position four-way valve, opens 2/2-way valve, by regulating the pressure of reduction valve thus regulating oil cylinder pulling force f1, suction nozzle pressure F is close to zero.
Know-why of the present utility model will arrange a shunting decompression loop in the loop of control at suction nozzle liter, shunting decompression loop have controlled, decompression, pressure adjustable function, when the operation of suction nozzle participation device, open shunting decompression loop and provide an adjustable adherence pressure to suction nozzle hoist cylinder or cylinder, and do not affect the normal operation of other shunt circuits, this pressure effectively can regulate according to the size of negative pressure in the area of contour of suction nozzle upper surface, suction nozzle, thus makes each parts pressure-bearing of suction nozzle reach ideal value.
The beneficial effects of the utility model are, carry out step-less adjustment, reduce wear, increase the service life during special sanitation vehicle operation to suction nozzle ground pressure.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the stressed schematic diagram of suction nozzle.
Fig. 2 is control loop schematic diagram.
1. hydraulic-pressure pumps in figure; 2. hydraulic oil container; 3. three-position four-way valve; 4. 2/2-way valve; 5. reduction valve; 6. suction nozzle hoist cylinder; 7,8. other action of oil cylinder.
Embodiment
In the embodiment shown in fig. 1: F=(G+ (P2-P1) × A
/)-f1.
Wherein: F-suction nozzle pressure;
G-suction nozzle self gravitation;
P1-suction nozzle chamber pressure;
P2-suction nozzle upper surface is by atmospheric pressure;
A
/the planimetric area of-suction nozzle upper surface;
F1-oil cylinder pulling force.
As shown in Figure 2 in embodiment, the hydraulic system of the utility model suction nozzle pressure equaliser comprises hydraulic-pressure pump 1, hydraulic oil container 2, three-position four-way valve 3,2/2-way valve 4, reduction valve 5, suction nozzle hoist cylinder 6, the oil outlet of hydraulic-pressure pump is in parallel with the oil inlet P of three-position four-way valve 3 and the oil inlet P 1 of 2/2-way valve 4 by pipeline, A, B mouth of three-position four-way valve 3 connects rodless cavity, the rod chamber of suction nozzle hoist cylinder respectively by pipeline, the Median Function of three-position four-way valve 3 is that A leads to T, and P, B are obstructed.The oil outlet A1 of 2/2-way valve 4 is connected with the oil inlet P 2 of reduction valve 5 by pipeline, the oil outlet A2 of reduction valve 5 is connected between the B mouth of three-position four-way valve 3 and the rod chamber of suction nozzle hoist cylinder by pipeline, and the T mouth of the drain tap T2 of reduction valve 5 and the T mouth of three-position four-way valve 3 and the valve that controls other actions is in parallel.
When 2/2-way valve 4 cuts out, control three-position four-way valve 3 and can realize the independent lifting action of suction nozzle, when work pattern, the multiple meta of three-position four-way valve 3, open 2/2-way valve 4, by regulating the pressure of reduction valve 5 thus regulating oil cylinder pulling force f1, suction nozzle pressure F is close to zero, reduce each parts pressure-bearing of suction nozzle to greatest extent, reduce each component wear of suction nozzle, increase the service life.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, at not lance
When shield, can be combined by any suitable mode.In order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
Claims (1)
1. the Equilibrator of an a kind of special sanitation vehicle suction nozzle, comprise hydraulic system, it is characterized in that, described hydraulic system comprises hydraulic-pressure pump (1), hydraulic oil container (2), three-position four-way valve (3), 2/2-way valve (4), reduction valve (5), suction nozzle hoist cylinder (6)
The oil outlet of described hydraulic-pressure pump (1) is in parallel with the oil inlet P of described three-position four-way valve (3) and the oil inlet P 1 of described 2/2-way valve (4) by pipeline;
A, B mouth of described three-position four-way valve (3) connects rodless cavity, the rod chamber of described suction nozzle hoist cylinder (6) respectively by pipeline, the Median Function of described three-position four-way valve (3) is that A leads to T, and P, B are obstructed;
The oil outlet A1 of described 2/2-way valve (4) is connected by the oil inlet P 2 of pipeline with described reduction valve (5), the oil outlet A2 of described reduction valve (5) is connected between the B mouth of described three-position four-way valve (3) and the rod chamber of described suction nozzle hoist cylinder (6) by pipeline, and the T mouth of the drain tap T2 of described reduction valve (5) and the T mouth of described three-position four-way valve (3) and the valve that controls other actions is in parallel;
When described 2/2-way valve (4) is closed, control described three-position four-way valve (3) and the independent lifting action of suction nozzle can be realized;
When work pattern, the multiple meta of described three-position four-way valve (3), opens described 2/2-way valve (3), by regulating the pressure of described reduction valve (5) thus regulating oil cylinder pulling force f1, suction nozzle pressure F is close to zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520750616.0U CN205089710U (en) | 2015-09-25 | 2015-09-25 | Balancing unit of environmental sanitation special car suction nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520750616.0U CN205089710U (en) | 2015-09-25 | 2015-09-25 | Balancing unit of environmental sanitation special car suction nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089710U true CN205089710U (en) | 2016-03-16 |
Family
ID=55480401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520750616.0U Withdrawn - After Issue CN205089710U (en) | 2015-09-25 | 2015-09-25 | Balancing unit of environmental sanitation special car suction nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156381A (en) * | 2015-09-25 | 2015-12-16 | 湖北合加环境设备有限公司 | Suction nozzle balance device for special sanitation truck |
-
2015
- 2015-09-25 CN CN201520750616.0U patent/CN205089710U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156381A (en) * | 2015-09-25 | 2015-12-16 | 湖北合加环境设备有限公司 | Suction nozzle balance device for special sanitation truck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104528555A (en) | Main arm variable amplitude controlling system for crane and crane | |
| CN103671364B (en) | Electrohydraulic control system is turned to for remote control loader | |
| CN105156381A (en) | Suction nozzle balance device for special sanitation truck | |
| CN203272291U (en) | Workpiece feeding rapid unloading loop | |
| CN205089710U (en) | Balancing unit of environmental sanitation special car suction nozzle | |
| CN102367818A (en) | Special integrated group valve for electrohydraulic push rod | |
| CN104444816A (en) | Hydraulic control system of hoisting machinery and hoisting machinery | |
| CN103010069B (en) | For the electrohydraulic control system of bucket crane | |
| CN104828702A (en) | Crane, reversing control system, and oil supply apparatus thereof | |
| CN104863913B (en) | Control valve gear with floating position | |
| CN205204652U (en) | Improve electro -hydraulic control system of engineering machinery cantilever crane motion ride comfort | |
| CN104278703B (en) | Damping hydraulic controller for moving arm of excavator | |
| CN205025846U (en) | Backpressure valves and have underground scraper work systems of this backpressure valves | |
| CN204572611U (en) | A kind of novel swing arm unloading valve | |
| CN202926756U (en) | Radial equilibrium-type hydraulic cylinder buffering device | |
| CN105196826A (en) | Automatic inflation/deflation hydro-pneumatic suspension device | |
| CN105114392A (en) | Oil cylinder, totally-closed hydraulic system with oil cylinders and control method | |
| CN104692254A (en) | Crane secondary ascension downslide prevention system | |
| CN204341866U (en) | Belt conveyer self adaptation tightening device | |
| CN204040016U (en) | Strong rammer with hydraulic power source is automatically de-hangs hammer device | |
| CN103663152A (en) | Mast rising-falling control system, method and apparatus, super-lift apparatus and crane | |
| CN204199342U (en) | Excavator swing arm damping fluid pressure control device | |
| CN208997051U (en) | A kind of plug support frame quick pressure releasing control loop | |
| CN209309030U (en) | A kind of Multifunction shuttle conveyer energy-saving hydraulic control system | |
| CN202597314U (en) | Control integrated valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160316 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |