CN202745387U - Landing leg control system and concrete pumping equipment - Google Patents
Landing leg control system and concrete pumping equipment Download PDFInfo
- Publication number
- CN202745387U CN202745387U CN 201220432079 CN201220432079U CN202745387U CN 202745387 U CN202745387 U CN 202745387U CN 201220432079 CN201220432079 CN 201220432079 CN 201220432079 U CN201220432079 U CN 201220432079U CN 202745387 U CN202745387 U CN 202745387U
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- Prior art keywords
- stop valve
- control system
- supporting leg
- port
- valve
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- Expired - Fee Related
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- 238000005086 pumping Methods 0.000 title claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 238000004146 energy storage Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a landing leg control system and concrete pumping equipment. The support leg control system comprises an accumulator; the first stop valve is arranged between the energy accumulator and the pressure oil source; the reversing valve is provided with a first working oil port and a second working oil port; a blocking element having two control ports and two execution ports; the leg control system further includes: the second stop valve, the third stop valve, the first connecting oil pipe and the second connecting oil pipe, wherein the third stop valve is arranged between the first stop valve and the pressure oil source; the first end of the first connecting oil pipe is connected between the first stop valve and the third stop valve, and the second end of the first connecting oil pipe is connected between the first working oil port and one control port; the first end of the second connecting oil pipe is connected between the third stop valve and the pressure oil source, and the second end of the second connecting oil pipe is connected between the second working oil port and the other control port; the second stop valve is arranged on the second connecting pipeline. The utility model discloses can utilize remaining energy to pack up the landing leg and avoid frequently starting in the energy storage ware.
Description
Technical field
The utility model relates to the control field of hydraulic lifting supporting leg, in particular to a kind of supporting leg control system and concrete pumping equipment.
Background technology
As depicted in figs. 1 and 2, in the existing concrete pump, accumulator working oil path and hydraulic lifting supporting leg oil circuit are separate.After pumpdown is finished, generally not to pack up the hydraulic lifting supporting leg at once with the concrete pump of hydraulic lifting supporting leg.During operation was accomplished to receipts hydraulic lifting supporting leg, manipulator was received and is stopped first motor, and the operation hand-operated direction valve 4 ' of starting shooting again when needs are packed up the hydraulic lifting supporting leg utilizes the gear pump fuel feeding to support oil cylinder 6 ', thereby packs up the hydraulic lifting supporting leg.Simultaneously, for safety is considered, must open stop valve 2 ' to lay down the surplus pressure in the accumulator 1 '.The shortcoming of prior art is: 1. the direct off-load oil sump tank 3 ' of dump energy in the accumulator, and be not fully used; 2. concrete pump is packed up the hydraulic lifting supporting leg also needs again ato unit.
The utility model content
Thereby the utility model aims to provide and a kind ofly can utilize dump energy in the accumulator to pack up supporting leg control system and concrete pumping equipment that supporting leg is avoided frequent start.
To achieve these goals, according to an aspect of the present utility model, provide a kind of supporting leg control system, having comprised: accumulator; The first stop valve is arranged between accumulator and the pressure oil-source; Reversal valve has the first actuator port and the second actuator port; And blocking element, have two control ports and two and carry out ports, two control ports respectively with the first actuator port be connected actuator port and be connected, two execution ports are connected with rodless cavity with the rod chamber of support oil cylinder respectively; The supporting leg control system also comprises: the second stop valve, the 3rd stop valve, the first connected pipes and the second connected pipes; The 3rd stop valve is connected between the first stop valve and the pressure oil-source; The first end of the first connected pipes is connected between the first stop valve and the 3rd stop valve, and the second end is connected between the first actuator port and the control port; The first end of the second connected pipes is connected between the 3rd stop valve and the pressure oil-source, and the second end is connected between the second actuator port and another control port; The second stop valve is arranged on the second connecting line.
Further, has first node on the connecting line between the first stop valve and the 3rd stop valve, have Section Point on the connecting line between the first actuator port and the control port, the first end of the first connected pipes is connected to first node, and the second end is connected to Section Point.
Further, has the 3rd node on the connecting line between the 3rd stop valve and the pressure oil-source, have the 4th node on the connecting line between the second actuator port and another control port, the first end of the second connected pipes is connected to the 3rd node, and the second end is connected to the 4th node.
Further, the first stop valve, the second stop valve and the 3rd stop valve are throttling stop valve.
Further, reversal valve is hand-operated direction valve.
Further, support oil cylinder has a plurality of, is provided with control valve on the connecting line of carrying out between the port of the rod chamber of each support oil cylinder and blocking element.
Further, blocking element is bidirectional hydraulic lock.
Further, blocking element is equalizing valve.
According on the other hand of the present utility model, a kind of concrete pumping equipment is provided, comprise the supporting leg control system, the supporting leg control system is above-mentioned any supporting leg control system.
Use the technical solution of the utility model, by the accumulator working oil path is connected with hydraulic lifting supporting leg oil circuit, and increase by two stop valves at connecting pipeline, with dump energy off-load in the accumulator to support oil cylinder, the retraction of realization supporting leg.This control system makes the dump energy of accumulator obtain utilizing, and has realized the maximization that energy utilizes, and reduces energy consumption.Simultaneously can realize not opening motor and just can regain supporting leg, avoid motor frequently to start shooting.
Description of drawings
The Figure of description that consists of the application's a part 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:
Fig. 1 shows the schematic diagram according to the accumulator working oil path of prior art;
Fig. 2 shows the schematic diagram according to the hydraulic lifting supporting leg oil circuit of prior art;
Fig. 3 shows the schematic diagram according to the supporting leg control system oil circuit of embodiment of the present utility model; And
Fig. 4 shows the supporting leg control system oil circuit A place enlarged drawing according to Fig. 3.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
As shown in Figure 3 and Figure 4, according to embodiment of the present utility model, provide a kind of supporting leg control system, comprised accumulator 1, the first stop valve 2, reversal valve 4, bidirectional hydraulic lock 5 and the second stop valve 7.Wherein accumulator 1 is connected with oil cylinder 3, and the first stop valve 2 is on the connecting line between accumulator 1 and the oil cylinder 3.
Reversal valve 4 has the first actuator port 4a and the second actuator port 4b, bidirectional hydraulic lock 5 has two control ports and two execution ports, first control port connects the 3rd actuator port 5a and the second control port 5f in the bidirectional hydraulic lock 5, second control port connects the 4th actuator port 5b and the first control port 5e in the bidirectional hydraulic lock 5, first carries out the 5th actuator port 5c in the port connection bidirectional hydraulic lock 5, second the 6th actuator port 5d that carries out in the port connection bidirectional hydraulic lock 5.
First control port is communicated to the first actuator port 4a, and second control port is communicated to the second actuator port 4b, and first carries out the rod chamber that port is communicated to support oil cylinder 6, carries out the rodless cavity that port is communicated to support oil cylinder 6 for second.By the action of support oil cylinder 6, supporting leg is stretched out or retract.Bidirectional hydraulic lock 5 can make supporting leg to stretch out state more stable.
Preferably, reversal valve 4 is hand-operated direction valve, and is three-position four-way valve.
In order to take full advantage of the dump energy in the accumulator 1, accumulator 1 is communicated to first control port, and second control port is connected with oil cylinder 3, and the second stop valve 7 is on the connecting line between second control port and the oil cylinder 3.
In the present embodiment, the concrete mode that accumulator 1 is connected with first control port is: the connecting line between the first stop valve 2 and oil cylinder 3 arranges first node, connecting line between the first actuator port 4a and first control port arranges Section Point, the first end of the first connected pipes is connected to first node, and the second end is connected to Section Point.
In the present embodiment, the concrete mode that second control port is connected with oil cylinder 3 is: the connecting line between first node and oil cylinder 3 arranges the 3rd node, connecting line between the second actuator port 4b and second control port arranges the 4th node, the first end of the second connected pipes is connected to the 3rd node, and the second end is connected to the 4th node.At the second connected pipes the second stop valve 7 is set.
In order to guarantee the whole off-loads of accumulator 1 inner surplus pressure, guarantee security of system, will be communicated with by connecting line between first node and the 3rd node, the connecting line between first node and the 3rd node is provided with the 3rd stop valve 8.
Preferably, the first stop valve 2, the second stop valve 7 and the 3rd stop valve 8 are throttling stop valve.
Here support oil cylinder 6 has a plurality ofly, and first is carried out port and is communicated with respectively with the rod chamber of a plurality of support oil cylinders 6, is provided with control valve 9 at connecting line of first execution port and each rod chamber.
Here only as a kind of form of pressure oil-source, in actual applications, pressure oil-source is not limited to oil cylinder to oil cylinder 3.
The supporting leg control system of present embodiment has namely kept the repertoire of original accumulator working oil path and hydraulic lifting supporting leg oil circuit, and the dump energy of accumulator is utilized, and realizes the maximization that energy utilizes.
Specific works principle of the present utility model is:
Pumping is opened the first stop valve 2 and the second stop valve 7 after shutting down, and closes the 3rd stop valve 8, uses the surplus pressure in the accumulator 1 that supporting leg is packed up.After the supporting leg contraction puts in place, open again the 3rd stop valve 8, accumulator 1 inner surplus pressure is laid down, to guarantee security of system.
Calculate as an example of bag type accumulator example:
If charging pressure of accumulator is p
0, accumulator volume is that the leather bag charging volume is V
0, the hydraulic pressure volume that requires during work to discharge is V, maximum working pressure and the minimum operating pressure of system are respectively p
Max, p
Min, the leather bag volume under the highest and minimum pressure is V
Max, V
Min, then had by the equation of gas state:
p
0V
0 i=p
MaxV
Max i=p
MinV
Min i=constant
I is index in the formula, and its value is determined by the gas condition of work.When accumulator is made auxiliary oil sources, very fast because releasing energy, can think and under absolute condition, work, get i=1.4.
By V=V
Max-V
Min, can try to achieve accumulator and discharge the hydraulic pressure volume:
Here bidirectional hydraulic lock 5 plays the effect of pressurize as the blocking element of supporting leg, makes supporting leg realize supporting, and in addition, equalizing valve also can play same function.
According to another embodiment of the present utility model, a kind of concrete pumping equipment is provided, comprise the supporting leg control system, this supporting leg control system is aforementioned any supporting leg control system.
From above description, can find out, the utility model the above embodiments have realized following technique effect: by the accumulator working oil path is connected with hydraulic lifting supporting leg oil circuit, and at two stop valves of connecting pipeline increase, dump energy off-load in the accumulator to support oil cylinder, is realized the retraction of supporting leg.This control system makes the dump energy of accumulator obtain utilizing, and has realized the maximization that energy utilizes, and reduces energy consumption.Simultaneously can realize not opening motor and just can regain supporting leg, avoid motor frequently to start shooting.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. supporting leg control system comprises:
Accumulator (1);
The first stop valve (2) is arranged between described accumulator (1) and the pressure oil-source;
Reversal valve (4) has the first actuator port (4a) and the second actuator port (4b); And
Blocking element, have two control ports and two execution ports, two described control ports respectively with described the first actuator port (4a) be connected the second actuator port (4b) and be connected, two described execution ports are connected with rodless cavity with the rod chamber of support oil cylinder (6) respectively;
It is characterized in that described supporting leg control system also comprises: the second stop valve (7), the 3rd stop valve (8), the first connected pipes and the second connected pipes;
Described the 3rd stop valve (8) is connected between described the first stop valve (2) and the described pressure oil-source;
The first end of described the first connected pipes is connected between described the first stop valve (2) and described the 3rd stop valve (8), and the second end is connected between described the first actuator port (4a) and the described control port;
The first end of described the second connected pipes is connected between described the 3rd stop valve (8) and the described pressure oil-source, and the second end is connected between described the second actuator port (4b) and another the described control port;
Described the second stop valve (7) is arranged on described the second connecting line.
2. supporting leg control system according to claim 1, it is characterized in that, has first node on the connecting line between described the first stop valve (2) and described the 3rd stop valve (8), has Section Point on the connecting line between described the first actuator port (4a) and the described control port, the first end of described the first connected pipes is connected to described first node, and the second end is connected to described Section Point.
3. supporting leg control system according to claim 2, it is characterized in that, has the 3rd node on the connecting line between described the 3rd stop valve (8) and the described pressure oil-source, has the 4th node on the connecting line between described the second actuator port (4b) and another the described control port, the first end of described the second connected pipes is connected to described the 3rd node, and the second end is connected to described the 4th node.
4. supporting leg control system according to claim 1 is characterized in that, described the first stop valve (2), described the second stop valve (7) and described the 3rd stop valve (8) are throttling stop valve.
5. each described supporting leg control system in 4 according to claim 1 is characterized in that described reversal valve (4) is hand-operated direction valve.
6. each described supporting leg control system in 4 according to claim 1, it is characterized in that, described support oil cylinder (6) has a plurality of, is provided with control valve (9) on the connecting line between the described execution port of the rod chamber of each described support oil cylinder (6) and described blocking element.
7. each described supporting leg control system in 4 according to claim 1 is characterized in that described blocking element is bidirectional hydraulic lock (5).
8. each described supporting leg control system in 4 according to claim 1 is characterized in that described blocking element is equalizing valve.
9. a concrete pumping equipment comprises the supporting leg control system, it is characterized in that, described supporting leg control system is each described supporting leg control system in the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432079 CN202745387U (en) | 2012-08-28 | 2012-08-28 | Landing leg control system and concrete pumping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220432079 CN202745387U (en) | 2012-08-28 | 2012-08-28 | Landing leg control system and concrete pumping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745387U true CN202745387U (en) | 2013-02-20 |
Family
ID=47704806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220432079 Expired - Fee Related CN202745387U (en) | 2012-08-28 | 2012-08-28 | Landing leg control system and concrete pumping equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745387U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421243A (en) * | 2013-09-09 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Hydraulic supporting leg structure and lighting type moving locomotive |
| CN105840564A (en) * | 2016-05-05 | 2016-08-10 | 四川重汽王牌兴城液压件有限公司 | Constant-pressure self-locking hydraulic lifting system of tower crane |
| CN106050767A (en) * | 2016-06-27 | 2016-10-26 | 湖南创远高新机械有限责任公司 | Upper and lower four-top-support type fixing system of underground drilling machine |
-
2012
- 2012-08-28 CN CN 201220432079 patent/CN202745387U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421243A (en) * | 2013-09-09 | 2015-03-18 | 海洋王（东莞）照明科技有限公司 | Hydraulic supporting leg structure and lighting type moving locomotive |
| CN105840564A (en) * | 2016-05-05 | 2016-08-10 | 四川重汽王牌兴城液压件有限公司 | Constant-pressure self-locking hydraulic lifting system of tower crane |
| CN106050767A (en) * | 2016-06-27 | 2016-10-26 | 湖南创远高新机械有限责任公司 | Upper and lower four-top-support type fixing system of underground drilling machine |
| CN106050767B (en) * | 2016-06-27 | 2018-02-06 | 湖南创远高新机械有限责任公司 | Four shore formula fixed system above and below a kind of drifter drill for underground |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20160828 |