CN2861575Y - Pressure boost fuel tank for concrete pump truck - Google Patents
Pressure boost fuel tank for concrete pump truck Download PDFInfo
- Publication number
- CN2861575Y CN2861575Y CN 200520052496 CN200520052496U CN2861575Y CN 2861575 Y CN2861575 Y CN 2861575Y CN 200520052496 CN200520052496 CN 200520052496 CN 200520052496 U CN200520052496 U CN 200520052496U CN 2861575 Y CN2861575 Y CN 2861575Y
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- Prior art keywords
- fuel tank
- valve
- oil
- links
- concrete mixer
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Abstract
The utility model discloses a pressure boost oil tank for concrete pump truck, the oil tank is fully sealed, an air inlet, an oil suction and an oil return opening are arranged on the oil tank, the oil suction of oil tank is connected with oil pump of concrete pump truck through oil conduit and the air inlet of oil tank is connected with gas tank through air feeder. The utility model can effectively improve oil suction environment of oil pump on concrete pump truck, decrease oil pump noise, prolong oil pump service life, improve cleanliness of hydraulic system, meanwhile, the oil pump can use thin and long oil suction pipe to optimize integrally the pressure boost oil tank of concrete pump truck.
Description
Technical field
The utility model is mainly concerned with the concrete mixer field in the engineering machinery, refers in particular to a kind of pressurized fuel tank of concrete mixer.
Background technique
In the prior art, concrete mixer all adopts the normal pressure fuel tank, and along with the continuous increase of pump truck pumping capacity, needed oil pump capacity also constantly increases, and in order to guarantee the pressure of inlet port, the fuel sucking pipe that corresponding oil pump is joined is also increasing.Because the pump truck oil pump generally is arranged in zone narrow and small between the chassis ridgepole, in order to reduce the linear loss of oil-absorbing pipeline, present domestic pump truck adopts the fixedly double fuel tank of doing of capstan head substantially, to guarantee the close together of fuel tank to oil pump.Like this, along with the increase of fuel sucking pipe, fixedly must abdicate enough spaces on the turret structure and give fuel sucking pipe, thereby make the fixedly stressing conditions variation of capstan head, the antifatigue damage capability reduces, so how to arrange that the fuel sucking pipe of big latus rectum has become a difficult problem in the limited space of pump truck.
The model utility content
The technical problems to be solved in the utility model just is: at the technical problem of prior art existence, the utility model is a kind of oil suction environment that can improve oil pump in the concrete mixer effectively, reduce the oil pump noise, prolong oil pump working life, the hydraulic system turbidity test have been improved, oil pump can use than the elongated suction oil pipe simultaneously, and then optimizes the pressurized fuel tank of the integrally-built concrete mixer of pump truck.
In order to solve the problems of the technologies described above, the solution that the utility model proposes is: a kind of pressurized fuel tank of concrete mixer, it is characterized in that: described fuel tank is hermetically sealed, offer suction port, inlet port and return opening on the fuel tank, the inlet port of fuel tank links to each other with the oil pump of concrete mixer by oil circuit, and the suction port of fuel tank links to each other with gas holder by air feeder.
Described air feeder comprises valve, reduction valve and pressure gauge successively, and described valve links to each other with the output terminal of gas holder, and pressure gauge links to each other with the suction port of fuel tank.
Described air feeder further comprises one-way valve and air filter, and one-way valve is located between valve and the reduction valve, and air filter is located between the suction port of pressure gauge and fuel tank.
What described reduction valve adopted is the overflow-type reduction valve
Described fuel tank links to each other with a low-voltage compensation alarm valve by oil circuit, and this low-voltage compensation alarm valve links to each other with controller by signaling line.
Also be provided with a maintenance drain tap on the described fuel tank, this maintenance drain tap links to each other with a baffler.
Described fuel tank is provided with a safety valve.
Compared with prior art, advantage of the present utility model is:
1, the pressurized fuel tank of concrete mixer of the present utility model is simple in structure, not only can on the concrete mixer of new structure, pre-install, can also on available coagulation soil pump truck, transform, only need gas holder and fuel tank to be linked together by air feeder, to introduce behind the high pressure air reducing in the gas holder in the hermetic fuel tank, make the interior air pressure of fuel tank greater than barometric pressure, the pressure of oil pump inlet port is improved, thereby improved the oil suction environment of the oil pump that links to each other with the fuel tank inlet port, reduced the oil pump noise, prolong oil pump working life;
2, the pressurized fuel tank of concrete mixer of the present utility model is hermetically sealed, can effectively isolate the pollution to fluid of extraneous dust, moisture, has improved the hydraulic system turbidity test;
3, the pressurized fuel tank of concrete mixer of the present utility model is guaranteeing that oil pump inlet port pressure meets the requirements of under the situation, make concrete mixer in the layout design process, can use littler, longer inlet line, this means the position that to arrange oil pump and fuel tank more flexibly, freer project organization parts; Simultaneously, adopt pressurized fuel tank technology of the present utility model after, making fixedly can be more reasonable on the turret structure, and does not need consideration to avoid fuel sucking pipe, thereby has optimized the structural design of whole concrete mixer;
4, the air supply system of the pressurized fuel tank of concrete mixer of the present utility model guarantees the reduction valve good working environment by air filter, has improved system reliability.Adopted non-maintaining design simultaneously, after system enters working state, need not safeguard, and can be out of service automatically when leaking appears in system or fuel tank, the protection oil pump.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural principle schematic representation;
Fig. 2 is the utility model embodiment 2 a structural principle schematic representation;
Fig. 3 is the structural representation that the utility model is applied to concrete mixer.
Marginal data
1, gas holder 2, valve
3, one-way valve 4, reduction valve
5, pressure gauge 6, air filter
7, maintenance drain tap 8, baffler
9, low-voltage compensation alarm valve 10, signaling line
11, safety valve 12, fuel tank
13, oil pump 14, air compressor
15, pay beam 16, return opening
17, crossbeam
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details.
Embodiment 1: the pressurized fuel tank 12 of concrete mixer of the present utility model is arranged in the fixedly capstan head on the concrete mixer, fixedly capstan head is installed on pump truck and pays on the beam 15, this fuel tank 12 is hermetically sealed, offer suction port, inlet port and return opening on the fuel tank 12, the inlet port of fuel tank 12 by oil circuit be installed on concrete mixer and pay the oil pump 13 of beam 15 and 17 on crossbeam and link to each other, safety valve 11 is installed on the fuel tank 12, and safety valve 11 can break down or pipeline blocks, be used for exhaust when air pressure is too high at reduction valve 4.The suction port of fuel tank 12 links to each other with gas holder 1 on being installed on concrete mixer chassis ridgepole 17 outsides by air feeder.This air feeder comprises valve 2, reduction valve 4 and pressure gauge 5 successively, and valve 2 links to each other with the output terminal of gas holder 1, and valve 2 main effects are when maintenance, cut off high-pressure air source and depressurized system; What reduction valve 4 adopted is the overflow-type reduction valve, can the all-the-time stable downstream pressure be setting value, and pressure gauge 5 is connected in parallel on the downstream of reduction valve, is convenient to set up fuel tank 12 setting pressures.
Working principle: after the engine in situ of concrete mixer started, motor drove air compressor 14 and inflates to gas holder 1: after being charged to setting pressure, and air compressor 14 off-loads.When gas holder 1 pressure is lower than another setting value, air compressor 14 begins inflation.Open the valve 2 of air feeder then, pressurized gas in the gas holder 1 enter in the fuel tank 12 by valve 2, reduction valve 4 successively, because fuel tank 12 is hermetic, so fuel tank 12 internal air pressures can reach setting value very soon, make the corresponding raising of inlet port pressure of oil pump 13, thereby improved the oil suction environment of oil pump 13, reduction valve 4 can stop inflation automatically after the arrival setting value.Simultaneously,, can use littler, longer inlet line, this means the position that to arrange oil pump 13 and fuel tank 12 more flexibly, freer project organization parts guaranteeing that oil pump 13 inlet port pressure meet the requirements of under the situation.In the pumping process, because master cylinder, the tilt cylinder of pumping system all belong to cascaded structure, therefore the oil phase that oil that oil pump 13 siphons away and return tube are sent back to etc. need make-up gas hardly.During the jib action, because the jib oil pump flow is little, gas can access in time and replenish.
Embodiment 2: as shown in Figures 2 and 3, the pressurized fuel tank 12 of concrete mixer of the present utility model is arranged in the fixedly capstan head on the concrete mixer, fixedly capstan head is installed on pump truck and pays on the beam 15, this fuel tank 12 is hermetically sealed, offer suction port, inlet port and return opening on the fuel tank 12, the inlet port of fuel tank 12 by oil circuit be installed on concrete mixer and pay the oil pump 13 of beam 15 and 17 on crossbeam and link to each other, safety valve 11 is installed on the fuel tank 12, and safety valve 11 can break down or pipeline blocks, be used for exhaust when air pressure is too high at reduction valve 4.The suction port of fuel tank 12 links to each other with gas holder 1 on being installed on concrete mixer chassis ridgepole 17 outsides by air feeder.This air feeder comprises valve 2, one-way valve 3, reduction valve 4, pressure gauge 5 and air filter 6 successively, and valve 2 links to each other with the output terminal of gas holder 1, and air filter 6 links to each other with the suction port of fuel tank 12.Valve 2 main effects are when maintenance, cut off high-pressure air source and depressurized system; 3 on one-way valve can prevent chassis gas holder 1 no gas, and during reduction valve 4 faults, gas pours in down a chimney to gas holder 1 in the fuel tank; What reduction valve 4 adopted is the overflow-type reduction valve, can the all-the-time stable downstream pressure be setting value, pressure gauge 5 is convenient to set up fuel tank 12 setting pressures, air filter 6 is automatic draining (oil) type, when reduction valve 4 overflows, mist of oil in the filtering gas, steam prevent that mist of oil, steam from entering reduction valve 4 and causing fault.And fuel tank 12 links to each other with a low-voltage compensation alarm valve 9 by oil circuit, this low-voltage compensation alarm valve 9 links to each other with controller by signaling line 10, signaling line 10 is used to transmit low-voltage signal to controller, when fuel tank 12 pressure are lower than setting value, this low-voltage compensation alarm valve 9 issues a signal to controller and stops oil pump 13 work.Simultaneously, can replenish atmosphere, prevent that the oil suction condition from further worsening to fuel tank 12.When playing machine for the first time, a large amount of hydraulic oil flow into system, and the low-voltage compensation valve also can in time replenish air, prevent that oil pump 13 suctions are empty.Fuel tank 12 is provided with a maintenance drain tap 7, when cleaning or overhaul fuel tank 12, can use this maintenance drain tap 7 venting, and this maintenance drain tap 7 links to each other the noise when this baffler 8 can reduce exhaust with a baffler 8.
Working principle: after the engine in situ of concrete mixer started, motor drove air compressor 14 and inflates to gas holder 1: after being charged to setting pressure, and air compressor 14 off-loads.When gas holder 1 pressure is lower than another setting value, air compressor 14 begins inflation.Open the valve 2 of air feeder then, pressurized gas in the gas holder 1 enter in the fuel tank 12 by valve 2, one-way valve 3, reduction valve 4 and air filter 6 successively, because fuel tank 12 is hermetic, therefore fuel tank 12 internal air pressures can be higher than barometric pressure, the corresponding raising of inlet port pressure that oil pump 13 is linked to each other with fuel tank 12 inlet ports, thereby improved the oil suction environment of oil pump 13, reduction valve 4 can stop inflation automatically after the arrival setting value.Simultaneously,, can use littler, longer inlet line, this means the position that to arrange oil pump 13 and fuel tank 12 more flexibly, freer project organization parts guaranteeing that oil pump 13 inlet port pressure meet the requirements of under the situation.In the pumping process, because master cylinder, the tilt cylinder of pumping system all belong to cascaded structure, therefore the oil phase that oil that oil pump 13 siphons away and return tube are sent back to etc. need make-up gas hardly.During the jib action, because the jib oil pump flow is little, gas can access in time and replenish.
Claims (11)
1, a kind of pressurized fuel tank of concrete mixer, it is characterized in that: described fuel tank (12) is hermetically sealed shape, fuel tank offers suction port, inlet port and return opening on (12), the inlet port of fuel tank (12) links to each other with the oil pump (13) of concrete mixer by oil circuit, and the suction port of fuel tank (12) links to each other with gas holder (1) by air feeder.
2, the pressurized fuel tank of concrete mixer according to claim 1, it is characterized in that: described air feeder comprises valve (2), reduction valve (4) and pressure gauge (5) successively, described valve (2) links to each other with the output terminal of gas holder (1), and pressure gauge (5) links to each other with the suction port of fuel tank (12).
3, the pressurized fuel tank of concrete mixer according to claim 2, it is characterized in that: described air feeder further comprises one-way valve (3) and air filter (6), one-way valve (3) is located between valve (2) and the reduction valve (4), and air filter (6) is located between the suction port of pressure gauge (5) and fuel tank (12).
4, according to the pressurized fuel tank of claim 2 or 3 described concrete mixers, it is characterized in that: what described reduction valve (4) adopted is the overflow-type reduction valve.
5, according to the pressurized fuel tank of claim 1 or 2 or 3 described concrete mixers, it is characterized in that: described fuel tank (12) links to each other with a low-voltage compensation alarm valve (9) by oil circuit, and this low-voltage compensation alarm valve (9) links to each other with controller by signaling line (10).
6, according to the pressurized fuel tank of claim 1 or 2 or 3 described concrete mixers, it is characterized in that: also be provided with a maintenance valve (7) on the described fuel tank (12), this maintenance valve (7) links to each other with a baffler (8).
7, the pressurized fuel tank of concrete mixer according to claim 5 is characterized in that: also be provided with a maintenance valve (7) on the described fuel tank (12), this maintenance valve (7) links to each other with a baffler (8).
8, according to the pressurized fuel tank of claim 1 or 2 or 3 described concrete mixers, it is characterized in that: described fuel tank (12) is provided with a safety valve (11).
9, the pressurized fuel tank of concrete mixer according to claim 5 is characterized in that: described fuel tank (12) is provided with a safety valve (11).
10, the pressurized fuel tank of concrete mixer according to claim 6 is characterized in that: described fuel tank (12) is provided with a safety valve (11).
11, the pressurized fuel tank of concrete mixer according to claim 7 is characterized in that: described fuel tank (12) is provided with a safety valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052496 CN2861575Y (en) | 2005-11-18 | 2005-11-18 | Pressure boost fuel tank for concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052496 CN2861575Y (en) | 2005-11-18 | 2005-11-18 | Pressure boost fuel tank for concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2861575Y true CN2861575Y (en) | 2007-01-24 |
Family
ID=37659204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052496 Expired - Lifetime CN2861575Y (en) | 2005-11-18 | 2005-11-18 | Pressure boost fuel tank for concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2861575Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376808C (en) * | 2005-11-18 | 2008-03-26 | 三一重工股份有限公司 | Pressurizing oil tank of concrete pump |
| CN103591059A (en) * | 2013-11-19 | 2014-02-19 | 徐工集团工程机械股份有限公司科技分公司 | High-placed negative-pressure totally-enclosed hydraulic oil tank |
| CN103629170A (en) * | 2013-11-27 | 2014-03-12 | 中外合资沃得重工（中国）有限公司 | Engineering machine stabilized-pressure oil tank device |
-
2005
- 2005-11-18 CN CN 200520052496 patent/CN2861575Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376808C (en) * | 2005-11-18 | 2008-03-26 | 三一重工股份有限公司 | Pressurizing oil tank of concrete pump |
| CN103591059A (en) * | 2013-11-19 | 2014-02-19 | 徐工集团工程机械股份有限公司科技分公司 | High-placed negative-pressure totally-enclosed hydraulic oil tank |
| CN103591059B (en) * | 2013-11-19 | 2015-09-16 | 徐工集团工程机械股份有限公司科技分公司 | Height puts the totally-enclosed hydraulic oil container of negative pressure |
| CN103629170A (en) * | 2013-11-27 | 2014-03-12 | 中外合资沃得重工（中国）有限公司 | Engineering machine stabilized-pressure oil tank device |
| CN103629170B (en) * | 2013-11-27 | 2016-06-08 | 中外合资沃得重工（中国）有限公司 | Engineering machinery stabilized-pressure oil tank 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 |
Effective date of abandoning: 20080326 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |