CN202945809U - Pumping machine and emergency driving system thereof - Google Patents
Pumping machine and emergency driving system thereof Download PDFInfo
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- CN202945809U CN202945809U CN 201220580927 CN201220580927U CN202945809U CN 202945809 U CN202945809 U CN 202945809U CN 201220580927 CN201220580927 CN 201220580927 CN 201220580927 U CN201220580927 U CN 201220580927U CN 202945809 U CN202945809 U CN 202945809U
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- hydraulic system
- valve
- oil
- emergency driving
- pumping machine
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Abstract
The utility model relates to the technical field of engineering machine pumping, and discloses a pumping machine and an emergency driving system of the pumping machine. The emergency driving system comprises a distribution valve hydraulic system and further comprises a pumping hydraulic system, and a stirring hydraulic system or an arm support hydraulic system. An emergence oil supply oil way is arranged among the pumping hydraulic system, the stirring hydraulic system or the arm support hydraulic system and the distribution valve hydraulic system, and the emergency oil supply oil way is used for supplying oil to the distribution valve hydraulic system emergently. According to the pumping machine and the emergency driving system, the pumping hydraulic system and the stirring hydraulic system or the arm support hydraulic system of the pumping machine can be fully utilized as emergency oil sources, and oil is supplied to the distribution valve hydraulic system emergently through the emergency oil supply oil ways so as to realize normal work of a distribution valve and guarantee that the pumping machine pumps concrete continuously. Compared with the prior art, the emergency driving system of the pumping machine improves resource use ratio and also improves continuous working performance of the pumping machine.
Description
Technical field
The utility model relates to engineering machinery pumping technology field, particularly a kind of pumping machine and emergency driving system thereof.
Background technology
Concrete mixer is to realize that by pumping mechanism the construction equipment of concrete conveyance, its hydraulic system generally comprise four autonomous systems, i.e. hydraulic system of pump, jib hydraulic system, distributing valve hydraulic system and stirring hydraulic system.wherein, the distributing valve of distributing valve hydraulic system have the commutation compression shock large, the characteristics such as commutating frequency high (20～30 times per minute), in real work, the oil pump of distributing valve hydraulic system, the fault rate of pressurising electromagnetic valve and overflow valve etc. is higher, oil pump when the distributing valve hydraulic system, when pressurising electromagnetic valve or overflow valve etc. break down, distributing valve can't be completed and swing commutation, and then cause concrete mixer can't continue pumping of concrete, because concrete is the rapid hardening material, in case this situation occurs, no matter for construction party or for pump truck itself, all may cause heavy losses, especially some building site Once you begin fluid concrete just do not fill and do not permitted to stop, must complete by disposal pouring, under this situation, for pump truck work continuously performance require high.
At present, comparatively a kind of method commonly used is a standby concrete pump, but causes like this decline of asset of equipments efficient, has increased client cost.In addition, when the oil pump of distributing valve hydraulic system, pressurising electromagnetic valve or overflow valve break down, also can take the more measures such as scavenge oil pump, pressurising electromagnetic valve or overflow valve, perhaps in advance for the distributing valve hydraulic system installs special-purpose emergency driving equipment additional, start professional emergency driving equipment and drive when breaking down; In this scheme, more the cycle of scavenge oil pump, reversal valve or overflow valve is longer, if during without existing spare part, replacement cycle will be longer, can't satisfy the job site requirement, and install in advance the emergency driving equipment of specialty additional, can fix a breakdown very soon, but because frequency of utilization is low, and increase the cost of whole equipment, common customer is difficult to accept.
Therefore, how the emergency driving function for existing distributing valve hydraulic system improves, and uses needs in order to further adapt to, and is the technical problem that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model is intended to propose a kind of pumping machine and emergency driving system thereof, to take full advantage of the resource of pumping machine self system, realizes the emergency driving function of distributing valve hydraulic system.
On the one hand, the utility model provides a kind of emergency driving system of pumping machine, described emergency driving system comprises the distributing valve hydraulic system, also comprise hydraulic system of pump, stir hydraulic system or jib hydraulic system, and be provided with emergent oil feeding line between described hydraulic system of pump, described stirring hydraulic system or described jib hydraulic system and described distributing valve hydraulic system, described emergent oil feeding line is used for to the emergent fuel feeding of described distributing valve hydraulic system.
Further, be provided with switch valve on described emergent oil feeding line.
Further, described switch valve is two-position two-way solenoid valve or hand-operated valve.
Further, be provided with reducing valve on described emergent oil feeding line.
Further, the oiler of described emergent oil feeding line is connected on the fuel-displaced pipeline of oil pump of described hydraulic system of pump, described stirring hydraulic system or described jib hydraulic system, and the oil-out of described emergent oil feeding line is connected on the in-line of described distributing valve hydraulic system.
Further, be provided with accumulator on the in-line of described distributing valve hydraulic system.
On the other hand, the utility model also provides a kind of pumping machine, and described pumping machine is provided with the described emergency driving of above-mentioned any one system.
Further, described pumping machine is concrete mixer.
the emergency driving system of a kind of pumping machine that the utility model provides, take full advantage of the hydraulic system of pump that pumping machine self has, stir hydraulic system or jib hydraulic system as emergent oil sources, oil pump when the distributing valve hydraulic system, reversal valve or overflow valve break down and then cause for want of pressure oil and can't realize swinging commutation time of distributing valve, can be from hydraulic system of pump, stirring hydraulic system or jib hydraulic system obtains pressure oil and passes through emergent oil feeding line to distributing valve hydraulic system Contingency supply, to realize the normal operation of distributing valve, guarantee that pumping machine continues pumping of concrete, compared with prior art, because need not a how standby pumping machine, perhaps need not to install in advance corresponding dedicated emergency driving arrangement additional for the distributing valve hydraulic system, improved resource utilization, in addition, because need not by scavenge oil pump more, reversal valve or overflow valve etc., can eliminate as soon as possible the impact that fault causes, improved the performance of working continuously of pumping machine, in addition, in maintenance process, when if the distributing valve hydraulic system breaks down, introduce pressure oil from hydraulic system of pump, stirring hydraulic system or jib hydraulic system to the distributing valve hydraulic system by emergent oil feeding line, can judge that fault has appearred in oil pump, reversal valve or overflow valve, or obstacle has appearred in other elements of distributing valve hydraulic system, has namely improved the diagnosis capability of fault, has reduced the eliminating time of fault.
A kind of pumping machine that the utility model provides is provided with above-mentioned emergency driving system, and system has above-mentioned technique effect due to above-mentioned emergency driving, and therefore, this pumping machine also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
The principle schematic of a kind of emergency driving system that is applied to concrete mixer that Fig. 1 provides for the utility model embodiment one;
The principle schematic of a kind of emergency driving system that is applied to concrete mixer that Fig. 2 provides for the utility model embodiment two;
The principle schematic of a kind of emergency driving system that is applied to concrete mixer that Fig. 3 provides for the utility model embodiment three;
The principle schematic of a kind of emergency driving system that is applied to concrete mixer that Fig. 4 provides for the utility model embodiment four.
The specific embodiment
Should be pointed out that in this part that to the description of concrete structure and description order be only explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had any restriction.In addition, under the situation of not conflicting, embodiment and the feature in embodiment in this part can make up mutually.
Please refer to Fig. 1, embodiment one provides, and a kind of emergency driving system that is applied to concrete mixer comprises at least: distributing valve hydraulic system, jib hydraulic system and emergent oil feeding line 01.
Wherein, the distributing valve hydraulic system comprises oil pump 1, overflow valve 2, reversal valve 3, one way valve 4 and distributing valve 10 etc., the inlet port of oil pump 1 is connected to fuel tank, the oil-out of oil pump 1 is connected to the oil-in of reversal valve 3, the actuator port of reversal valve 3 is connected to the arrival end of one way valve 4, and the port of export of one way valve 4 is connected on the in-line of distributing valve 10; Overflow valve 2 is arranged on the fuel-displaced pipeline of oil pump 1, prevents that the oil pressure on the fuel-displaced pipeline of oil pump 1 is excessive; Reversal valve 3 is two-position four-way solenoid valve, when electric, reversal valve 3 works in right position, at this moment, the hydraulic oil of oil pump 1 output flows to distributing valve 10 through after reversal valve 3 by one way valve 4, and when dead electricity, reversal valve 3 works in left position, at this moment, the hydraulic oil of oil pump 1 output flows back to fuel tank by reversal valve 3.
The jib hydraulic system comprises oil pump 9, one way valve 8 and jib valve 11 etc., and the inlet port of oil pump 9 is connected to fuel tank, and oil-out is connected to the arrival end of one way valve 8, and the port of export of one way valve 8 is connected on the in-line of jib valve 11.
Emergent oil feeding line 01 is arranged between jib valve 11 and distributing valve 10, be provided with switch valve 7 and reducing valve 6 on emergent oil feeding line 01, particularly, the oiler of emergent oil feeding line 01 is connected on the in-line of jib valve 11, oil-out is connected on the in-line of distributing valve 10, reducing valve 6 is between switch valve 7 and distributing valve 10, and switch valve 7 is normal close two-position two-way solenoid.Preferably, also be provided with accumulator 5 on the in-line of distributing valve 10.
The following describes the operating principle of above-described embodiment:
in operation process, can be by oil pump 9 to jib valve 11 supply pressure oil, and then realize the action of jib, when the needs fluid concrete, control reversal valve 3 and be in to get electricity condition, make oil pump 1 be continuously distributing valve 10 supply pressure oil, realize swinging commutation by distributing valve 10, to guarantee concrete normal conveying, if oil pump 1, overflow valve 2 or reversal valve 3 break down and then cause for want of pressure oil and can't realize swinging commutation time of distributing valve 10, at this moment, controllable switch valve 7 is in to get electricity condition, make emergent oil feeding line 01 be in conducting state, pressure oil on jib valve 11 in-lines (being the in-line of distributing valve hydraulic system) will flow to distributing valve 10 by emergent oil feeding line 01, realize that distributing valve 10 continues fuel feeding, so that distributing valve 10 continues normal operation, thereby guarantee concrete normal conveying.In said process, accumulator 5 can play the accumulation of energy effect, even the instantaneous required fluid of distributing valve hydraulic system is stored in accumulator, and make outlet pressure automatically keep stable function because reducing valve 6 has, under emergency rating, the oil pressure that reducing valve 6 will make the jib hydraulic pressure system unify side reduces to the required charge oil pressure of distributing valve hydraulic system, thereby guarantees the normal operation of distributing valve hydraulic system.In addition, in said process, one way valve 8 can prevent that the pressure oil backflow of jib valve 11 in-lines from entering oil pump 9, and one way valve 4 can prevent that the pressure oil backflow of distributing valve 10 in-lines from entering oil pump 1 or fuel tank.From said process as can be known, compared with prior art, in the present embodiment, because need not a how standby pumping machine, perhaps need not to have improved resource utilization for the distributing valve hydraulic system installs corresponding dedicated emergency driving arrangement in advance additional, in addition, because need not to eliminate as soon as possible by more scavenge oil pump, reversal valve or overflow valve etc. the impact that fault causes, improved the performance of working continuously of concrete mixer.
In maintenance process, when if the oil pump 1 of distributing valve hydraulic system, overflow valve 2, reversal valve 3 or distributing valve 10 etc. break down, can introduce pressure oil from the jib hydraulic system to the distributing valve hydraulic system by emergent oil feeding line 01, in order to can judge that fault has appearred in oil pump 1, reversal valve 3 or overflow valve 2 before one way valve 4, or obstacle has appearred in the distributing valve 10 after one way valve 4 or other elements that are connected to distributing valve 10, namely improve the diagnosis capability of fault, reduced the eliminating time of fault.
Please refer to Fig. 2, embodiment two comprises the described oil pump 1 of embodiment one, overflow valve 2, reversal valve 3, one way valve 4, accumulator 5, reducing valve 6, switch valve 7, one way valve 8, oil pump 9, distributing valve 10, jib valve 11 and emergent oil feeding line 01 etc., embodiment two is with the main difference part of embodiment one, switch valve 7 adopts hand-operated valve, so that operating personnel realize the emergency driving of distributing valve hydraulic system as required by manual control, the operating principle of embodiment two and corresponding technique effect can be described referring to embodiment one, hereby do not give unnecessary details.
please refer to Fig. 3 and Fig. 4, and in conjunction with Fig. 1, embodiment three and embodiment four include the described oil pump 1 of embodiment one, overflow valve 2, reversal valve 3, one way valve 4, accumulator 5, reducing valve 6, switch valve 7, distributing valve 10 and emergent oil feeding line 01 etc., embodiment three is with the main distinction of embodiment one, embodiment three adopts hydraulic system of pump to the emergent fuel feeding of distributing valve hydraulic system, this hydraulic system of pump comprises oil pump 9, one way valve 8 and pumping valve 12 etc., and the main distinction of embodiment four and embodiment one is, embodiment four adopts and stirs hydraulic system to the emergent fuel feeding of distributing valve hydraulic system, this stirring hydraulic system comprises oil pump 9, one way valve 8 and stirring valve 13 etc., that is: in embodiment three (four), stir valve 13 by one way valve 8 to pumping valve 12(by oil pump 9) carry out fuel feeding, oil pump 1 when the distributing valve hydraulic system, overflow valve 2 or reversal valve 3 break down and cause for want of pressure oil and can't swing when commutation of distributing valve 10, pumping valve 12(can be stirred valve 13) pressure oil on in-line by emergent oil feeding line 01 to distributing valve 10 Contingency supplies, to guarantee the normal operation of distributing valve.The operating principle of embodiment three and embodiment four and corresponding technique effect can be described referring to embodiment one, hereby do not give unnecessary details.
Need to prove, the switch valve 7 in embodiment three and embodiment four is normal close two-position two-way solenoid, can certainly adopt as required hand-operated valve.
need to prove, at embodiment one, in embodiment three and embodiment four, can also configure a cover control system, this control system comprises pressure sensor at least, processing unit and drive circuit, wherein, pressure sensor is arranged on the in-line of distributing valve 10, be used for detecting in real time the oil pressure value of this in-line, processing unit is used for oil pressure value and preset value that pressure sensor obtains are compared, determine whether less than preset value, and when determining less than preset value, the action of indication drive circuit, drive circuit is powered to switch valve 7 after receiving indication, make it be in to get electricity condition, so just, can realize when the distributing valve hydraulic system supplies shortage of oil, by the jib hydraulic system, the in-line of hydraulic system of pump or stirring hydraulic system is made Contingency supply to the distributing valve hydraulic system, in specific implementation process, processing unit can adopt PLC or nonshared control unit to build, and drive circuit can adopt the realizations such as relay or Special circuit board.
Need to prove, in above-mentioned various embodiment, emergent oil feeding line 01 is arranged at in-line and jib hydraulic system, the hydraulic system of pump of distributing valve hydraulic system or stirs between the in-line of hydraulic system, in other embodiments, if jib hydraulic system, hydraulic system of pump or stir hydraulic system and have suitable pressure oil delivery outlet, also can being arranged between this pressure oil delivery outlet and distributing valve hydraulic system of emergent oil feeding line 01; In addition, in above-mentioned various embodiment, switch valve 7 and reducing valve 6 are arranged on emergent oil feeding line 01, be convenient to realize emergent control for oil condition, and satisfied needs of being down to the target oil pressure, in other embodiments, be not limited to this, also can adopt as required other modes that can realize above-mentioned corresponding function.
Need to prove, in above-mentioned various embodiment, be illustrated to be applied to concrete mixer, in other embodiments, also this emergency driving system can be used for other pumping machine, such as Vehicle loaded pump or drag pump etc., certainly, Vehicle loaded pump or drag pump self not have the jib hydraulic system under this situation, can adopt hydraulic system of pump or stir hydraulic system as the source of emergency pressure oil.
The utility model embodiment also provides a kind of pumping machine, concrete mixer for example, this pumping machine is provided with above-mentioned emergency driving system, system has above-mentioned technique effect due to above-mentioned emergency driving, therefore, the pumping machine that is provided with the emergency driving system also should possess corresponding technique effect, and the specific implementation process of its appropriate section is similar to the above embodiments, does not hereby give unnecessary details.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. the emergency driving system of a pumping machine is characterized in that:
Described emergency driving system comprises the distributing valve hydraulic system, also comprises hydraulic system of pump, stirs hydraulic system or jib hydraulic system;
Be provided with emergent oil feeding line (01) between described hydraulic system of pump, described stirring hydraulic system or described jib hydraulic system and described distributing valve hydraulic system, described emergent oil feeding line (01) is used for to the emergent fuel feeding of described distributing valve hydraulic system.
2. emergency driving as claimed in claim 1 system, is characterized in that: be provided with switch valve (7) on described emergent oil feeding line (01).
3. emergency driving as claimed in claim 2 system, it is characterized in that: described switch valve (7) is two-position two-way solenoid valve or hand-operated valve.
4. as described in claims 1 to 3 any one emergency driving system, is characterized in that: be provided with reducing valve (6) on described emergent oil feeding line (01).
5. as described in claims 1 to 3 any one emergency driving system, it is characterized in that: the oiler of described emergent oil feeding line (01) is connected on the fuel-displaced pipeline of oil pump of described hydraulic system of pump, described stirring hydraulic system or described jib hydraulic system, and the oil-out of described emergent oil feeding line (01) is connected on the in-line of described distributing valve hydraulic system.
6. emergency driving as claimed in claim 5 system, is characterized in that: be provided with accumulator (5) on the in-line of described distributing valve hydraulic system.
7. pumping machine is characterized in that: described pumping machine is provided with the described emergency driving of claim 1 to 6 any one system.
8. pumping machine as claimed in claim 7, it is characterized in that: described pumping machine is concrete mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580927 CN202945809U (en) | 2012-11-06 | 2012-11-06 | Pumping machine and emergency driving system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220580927 CN202945809U (en) | 2012-11-06 | 2012-11-06 | Pumping machine and emergency driving system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945809U true CN202945809U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220580927 Expired - Lifetime CN202945809U (en) | 2012-11-06 | 2012-11-06 | Pumping machine and emergency driving system thereof |
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| CN (1) | CN202945809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926539A (en) * | 2012-11-06 | 2013-02-13 | 三一重工股份有限公司 | Pumping machinery and emergency driving system thereof |
-
2012
- 2012-11-06 CN CN 201220580927 patent/CN202945809U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926539A (en) * | 2012-11-06 | 2013-02-13 | 三一重工股份有限公司 | Pumping machinery and emergency driving system thereof |
| CN102926539B (en) * | 2012-11-06 | 2016-04-06 | 三一重工股份有限公司 | Pumping machine and emergency driving system thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |