CN202001241U - Concrete pumping equipment and concrete conveying hydraulic system thereof - Google Patents
Concrete pumping equipment and concrete conveying hydraulic system thereof Download PDFInfo
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- CN202001241U CN202001241U CN2011201010835U CN201120101083U CN202001241U CN 202001241 U CN202001241 U CN 202001241U CN 2011201010835 U CN2011201010835 U CN 2011201010835U CN 201120101083 U CN201120101083 U CN 201120101083U CN 202001241 U CN202001241 U CN 202001241U
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Abstract
The utility model discloses a concrete conveying hydraulic system. The system comprises a swing hydraulic system, an arm frame hydraulic system and a reversing valve, wherein the swing hydraulic system comprises a swing oil pump and a distribution valve; the arm frame hydraulic system comprises an arm frame oil pump and an arm frame valve; when the reversing valve is at a first working position, the oil outlet of the swing oil pump is communicated with the oil inlet of the distribution valve; and when the reversing valve is at a second working position, the oil outlet of the swing oil pump is communicated with the oil inlet of the arm frame valve. In the concrete conveying hydraulic system, the swing oil pump timely replaces the arm frame oil pump to provide pressure oil when the arm frame oil pump fails so as to maintain the distribution work of an arm frame; and the displacement and pressure of the swing oil pump are close to those of the arm frame oil pump, and a complicated oil pump displacement control system is not required to be used as support. The utility model also discloses concrete pumping equipment comprising the concrete conveying hydraulic system.
Description
Technical field
The utility model relates to the concrete pumping technique field, particularly a kind of transmission and concrete transmission hydraulic system.The utility model also relates to a kind of concrete pumping equipment that comprises above-mentioned transmission and concrete transmission hydraulic system.
Background technique
Concrete pumping equipment mainly is made up of the beam mechanism of pumping mechanism, cloth and supporting leg etc.Pumping mechanism is responsible for transmission and concrete transmission to material-feeding mechanism, beam mechanism then with transmission and concrete transmission to specified position, supporting leg is in order to steady support material-feeding mechanism, guarantees the smooth working of beam mechanism.
The proper functioning of beam mechanism needs the jib hydraulic system to drive, and the jib hydraulic system adopts the independent fuel feeding of jib oil pump usually, and the general and shared jib oil pump of jib hydraulic system of supporting leg hydraulic system is as power source.The jib hydraulic system is mainly by the jib oil pump, the proportional multi-path valve, and compositions such as oil cylinder, the power oil of jib oil pump is flexible through the direct driving oil cylinder of proportional multi-path valve, and the flexible of oil cylinder can drive jib motion carrying out cloth operation.
Because the particularity of jib motion, usually have only the forearm frame can adopt quantitative plunger pump, and technically for the consideration of aspect such as energy-conservation, most of jib hydraulic systems, especially count the jib hydraulic system at rice, all adopt and have load-sensitive, the axial piston pump of pressure cut off and permanent control function of power, and system pressure is up to 35MPa, the control mechanism that function is various determines its control unit more relatively, and various functions are interrelated, therefore, the probability of failure of jib hydraulic system is higher relatively, mainly showing as system in the middle of the construction does not at the scene have pressure or underpressure suddenly, thereby causes the beam mechanism of concrete mixer to move, and loses the cloth function.
At above-mentioned fault, need to change the power source of jib hydraulic system, yet the job site can't in time obtain to replace power source equipment usually, even if having replacement equipment, faulty equipment also can't be removed, because the fault of jib hydraulic system causes jib and supporting leg to regain; In addition, change power source at the construction field (site) and need expend the regular hour, concrete is set in concrete cylinder, hopper and the delivery line easily, further causes the breakdown of equipment component.Then the power source fault of cloth jib hydraulic system can cause the loss of equipment component and manpower, in addition, because concrete construction has particularity, be generally continuous placing, and the work surface that participates in construction is bigger, and the paralysis of material-feeding mechanism can cause more serious loss.
Therefore, continous-stable how to keep cloth jib hydraulic work system in the concrete pumping equipment is those skilled in the art's technical issues that need to address.
The model utility content
A purpose of the present utility model provides a kind of transmission and concrete transmission hydraulic system, and this hydraulic system can continue as the jib hydraulic system by the swing oil pump power is provided when the jib oil pump break down, and realizes emergent fuel feeding, keeps the continuity of cloth operation.Another purpose of the present utility model provides a kind of concrete pumping equipment that comprises above-mentioned transmission and concrete transmission hydraulic system.
For reaching first purpose of the present utility model, the utility model provides a kind of transmission and concrete transmission hydraulic system, comprise swing hydraulic system and jib hydraulic system, described swing hydraulic system comprises swing oil pump and distributing valve, described jib hydraulic system comprises jib oil pump and jib valve, described transmission and concrete transmission hydraulic system also comprises selector valve, and when described selector valve was in first working position, the oil outlet of described swing oil pump was communicated with the filler opening of described distributing valve; When described selector valve was in second working position, the oil outlet of described swing oil pump was communicated with the filler opening of described jib valve.
Preferably, described selector valve to the path of described jib valve is provided with first one-way valve.
Preferably, also comprise accumulator, described accumulator is communicated with the filler opening of described distributing valve, and described selector valve is when being in first working position, and described accumulator is communicated with the oil outlet of described swing oil pump.
Preferably, described selector valve is a two-position four way change valve, and when described selector valve was in first working position, the filler opening of described jib valve was communicated with fuel tank, and when described selector valve was in second working position, the filler opening of described distributing valve was communicated with described fuel tank; And described selector valve to the path of described accumulator is provided with second one-way valve.
Preferably, described selector valve to the path of described fuel tank is provided with throttle valve.
Preferably, the oil outlet of described jib oil pump to the path of described jib valve is provided with the 3rd one-way valve.
Preferably, described selector valve is an electro-hydraulic reversing valve.
Preferably, described swing oil pump is the constant pressure pump with constant voltage regulating mechanism.
This transmission and concrete transmission hydraulic system, when the jib oil pump produces fault, can make the swing oil pump substitute the jib oil pump in time and provide pressure oil for jib action executive component, keep the cloth work of jib, make the concrete of cloth delivery line can build the generation of reducing the loss in time to desired location; And discharge capacity, the pressure of discharge capacity, pressure and the jib oil pump of swing oil pump are all comparatively approaching, during switching jib hydraulic system, need not to adopt complicated oil pump capacity control system as support.Then in fact this model utility provides a kind of emergent boom system power oil sources, has utilized transmission and concrete transmission system own resources, need not external oil sources, and the response time is fast, and cost is lower.
For reaching another purpose of the present utility model, the utility model also provides a kind of concrete pumping equipment, comprise transmission and concrete transmission hydraulic system and electric control system, described transmission and concrete transmission hydraulic system is above-mentioned each described transmission and concrete transmission hydraulic system.Because above-mentioned transmission and concrete transmission hydraulic system has above-mentioned technique effect, the concrete pumping equipment with above-mentioned transmission and concrete transmission hydraulic system also has identical technique effect.
Description of drawings
Fig. 1 provides the schematic representation of a kind of embodiment of transmission and concrete transmission hydraulic system for the utility model;
Fig. 2 provides the schematic representation of the another kind of embodiment of transmission and concrete transmission hydraulic system for the utility model.
Embodiment
A core of the present utility model provides a kind of transmission and concrete transmission hydraulic system, and this hydraulic system can continue as the jib hydraulic system by the swing oil pump power is provided when the jib oil pump break down, and realizes emergent fuel feeding, keeps the continuity of cloth operation.Another core of the present utility model provides a kind of concrete pumping equipment that comprises above-mentioned transmission and concrete transmission hydraulic system.
In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 provides the schematic representation of a kind of embodiment of transmission and concrete transmission hydraulic system for the utility model.
The transmission and concrete transmission hydraulic system of this mode of execution, comprise swing hydraulic system and jib hydraulic system, the swing hydraulic system comprises swing oil pump 1 and distributing valve, swing oil pump 1 provides pressure oil for distributing valve, under the pressure oil effect, the distributing valve switching is communicated with two concrete cylinders, and two concrete cylinders are in respectively discharges and suck two kinds of working staties of concrete, distributing valve is communicated with the concrete concrete cylinder of discharge all the time, thereby realizes concrete uninterrupted pumping; The jib hydraulic system comprises jib oil pump 2 and jib valve, the pressure oil of jib oil pump 2 flows out to corresponding jib action executive component via the jib valve, to drive executive component work, as arm support oil cylinder, the jib valve can adopt the proportional multi-path valve, with the flow and the flow direction of accurately controlling hydraulic oil.
The transmission and concrete transmission hydraulic system also comprises selector valve 3, and when selector valve 3 was in first working position, the oil outlet of swing oil pump 1 was communicated with the filler opening of distributing valve; When selector valve 3 was in second working position, the oil outlet of swing oil pump 1 was communicated with the filler opening of jib valve.
During normal working, selector valve 3 is in first working position, promptly swings oil pump 1 for distributing valve provides pressure oil, and the jib valve then provides pressure oil by jib oil pump 2; When jib oil pump 2 breaks down, be that jib oil pump 2 no longer provides pressure oil, when the pressure oil that perhaps provides is short of power, 3 commutations of control selector valve, make selector valve 3 be in second working position, then swing oil pump 1 and can provide power for the jib valve, the executive component of then controlling the jib action can work under the hydraulic oil driving of swing oil pump 1, realizes concrete cloth.Certainly, after concrete was delivered to the relevant position by the cloth jib, for guaranteeing concrete lasting supply, swing oil pump 1 still is required to be distributing valve provided power.Selector valve 3 preferably adopts electro-hydraulic reversing valve, as shown in Figure 1, electro-hydraulic reversing valve be in electricity condition, be positioned at i.e. second working position, right position, the oil outlet of swing oil pump 1 is communicated with the filler opening of jib valve, during the electro-hydraulic reversing valve dead electricity, be positioned at i.e. first working position, position, a left side, the oil outlet of swing oil pump 1 is communicated with distributing valve.Electro-hydraulic reversing valve is convenient to electrical system control, especially it is higher that the selector valve in this programme 3 needs the frequency of execution commutation, get electric and dead electricity by manual operation electrical system control selector valve 3, can relatively easily realize the purpose of this utility model, and electro-hydraulic reversing valve can guarantee bigger flow.
This transmission and concrete transmission hydraulic system, when jib oil pump 2 produces fault, can make the swing oil pump substitute jib oil pump 2 in time and provide pressure oil for jib action executive component, keep the cloth work of jib, make the concrete of cloth delivery line can build the generation of reducing the loss in time to desired location; And discharge capacity, the pressure of discharge capacity, pressure and the jib oil pump 2 of swing oil pump 1 are all comparatively approaching, during switching jib hydraulic system, need not to adopt complicated oil pump capacity control system as support.Then in fact this model utility provides a kind of emergent boom system power oil sources, has utilized transmission and concrete transmission system own resources, need not external oil sources, and the response time is fast, and cost is lower.
Please refer to Fig. 2, Fig. 2 provides the schematic representation of the another kind of embodiment of transmission and concrete transmission hydraulic system for the utility model.
Can also accumulator 6 be set in the transmission and concrete transmission hydraulic system, when selector valve 3 was in first working position, accumulator 6 was communicated with the oil outlet of swing oil pump 1 and the filler opening of distributing valve.When selector valve 3 is in first working position, distributing valve switches between two concrete cylinder outlets, the time lag of switching is approximately the time that each concrete cylinder discharges the concrete that sucks in the cylinder, in at this moment, distributing valve does not need hydraulic oil usually, system pressure is higher, self-swinging oil pump 1 flow out hydraulic oil can flow in the accumulator 6 and store, reduce the system power loss, when distributing valve begins to switch, need high-volume hydraulic oil, system pressure reduces, accumulator 6 can outwards discharge the hydraulic oil that stores, and provides pressure oil for the switching of distributing valve jointly with swing oil pump 1.Therefore, be provided with after the accumulator 6, be equivalent to be provided with the auxiliary power pump, improve the working efficiency of distributing valve.
Can also to the path of fuel tank throttle valve 8 be set at selector valve 3, throttle valve 8 is in open mode usually, does not influence the break-make of oil circuit; Lose control flows to doing the time spent when second one-way valve 4, close throttle valve 8, block the path of selector valve 3 and fuel tank, when preventing that selector valve 3 is in second working position, the hydraulic oil of accumulator 6 storages flows back to fuel tank from the second malfunctioning one-way valve 4.
For above each embodiment, swing oil pump 1 is specifically as follows the constant pressure pump with constant voltage regulating mechanism 11, and the discharge capacity of the swing oil pump 1 of constant pressure pump is moderate, and is all approaching, applied widely with the discharge capacity and the pressure of various model jib oil pumps 2; When system does not need energy, constant voltage pump delivery self-zeroing, the energy is saved in noenergy output.Adjustment operation during constant pressure pump switching jib hydraulic system is comparatively simple, after definite jib oil pump 2 breaks down, equipment out of service, adjust the constant voltage regulating mechanism 11 of constant pressure pump in time, the technical parameter of swing hydraulic system is adjusted to the technical parameter of jib hydraulic system, at first adjust relief valve 9 pressure of swing hydraulic system, again constant voltage is adjusted to suitable numerical value, then constant pressure pump can more accurately satisfy the pressure needs of jib hydraulic system, and regulate rapidly simply, satisfy emergent demand.
For above each mode of execution, the specific operation step of emergent driving jib hydraulic system is as follows: jib oil pump 2 produces faults, in the time of can't implementing effective cloth, the artificial technical parameter of adjusting the swing hydraulic system, by 3 commutations of manual control selector valve,, electro-hydraulic reversing valve is got then as Fig. 1 or shown in Figure 2, pumpdown stops, and concrete mixer begins the cloth operation; After the cloth operation is finished, manually make the electro-hydraulic reversing valve dead electricity, restart pumpdown, the cloth operation stops.The switching of cloth operation and pumpdown is controlled according to concrete construction situation by operator.
Except above-mentioned transmission and concrete transmission hydraulic system, the utility model also provides a kind of concrete pumping equipment, comprise transmission and concrete transmission hydraulic system and electric control system, described transmission and concrete transmission hydraulic system is above-mentioned each described transmission and concrete transmission hydraulic system.Because above-mentioned transmission and concrete transmission hydraulic system has above-mentioned technique effect, the concrete conveying equipment with above-mentioned transmission and concrete transmission hydraulic system also has identical technique effect, does not give unnecessary details at this.
More than a kind of concrete pumping equipment provided by the utility model and transmission and concrete transmission hydraulic system thereof are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. transmission and concrete transmission hydraulic system, comprise swing hydraulic system and jib hydraulic system, described swing hydraulic system comprises swing oil pump (1) and distributing valve, described jib hydraulic system comprises jib oil pump (2) and jib valve, it is characterized in that, described transmission and concrete transmission hydraulic system also comprises selector valve (3), and when described selector valve (3) was in first working position, the oil outlet of described swing oil pump (1) was communicated with the filler opening of described distributing valve; When described selector valve (3) was in second working position, the oil outlet of described swing oil pump (1) was communicated with the filler opening of described jib valve.
2. transmission and concrete transmission hydraulic system according to claim 1 is characterized in that, described selector valve (3) to the path of described jib valve is provided with first one-way valve (5).
3. transmission and concrete transmission hydraulic system according to claim 2, it is characterized in that, also comprise accumulator (6), described accumulator (6) is communicated with the filler opening of described distributing valve, and when described selector valve (3) was in first working position, described accumulator (6) was communicated with the oil outlet of described swing oil pump (1).
4. transmission and concrete transmission hydraulic system according to claim 3, it is characterized in that, described selector valve (3) is a two-position four way change valve, when described selector valve (3) is in first working position, the filler opening of described jib valve is communicated with fuel tank, when described selector valve (3) was in second working position, the filler opening of described distributing valve was communicated with described fuel tank; And described selector valve (3) to the path of described accumulator (6) is provided with second one-way valve (4).
5. transmission and concrete transmission hydraulic system according to claim 4 is characterized in that, described selector valve (3) to the path of described fuel tank is provided with throttle valve (8).
6. transmission and concrete transmission hydraulic system according to claim 5 is characterized in that, the oil outlet of described jib oil pump (2) to the path of described jib valve is provided with the 3rd one-way valve (7).
7. according to each described transmission and concrete transmission hydraulic system of claim 1 to 6, it is characterized in that described selector valve (3) is an electro-hydraulic reversing valve.
8. transmission and concrete transmission hydraulic system according to claim 7 is characterized in that, described swing oil pump (1) is for having the constant pressure pump of constant voltage regulating mechanism (11).
9. a concrete pumping equipment comprises transmission and concrete transmission hydraulic system and electric control system, it is characterized in that, described transmission and concrete transmission hydraulic system is each described transmission and concrete transmission hydraulic system of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201010835U CN202001241U (en) | 2011-04-08 | 2011-04-08 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201010835U CN202001241U (en) | 2011-04-08 | 2011-04-08 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
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| Publication Number | Publication Date |
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| CN202001241U true CN202001241U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201010835U Expired - Lifetime CN202001241U (en) | 2011-04-08 | 2011-04-08 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
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| CN (1) | CN202001241U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734236A (en) * | 2012-07-12 | 2012-10-17 | 三一重工股份有限公司 | Pumping reversal hydraulic control system, control method and concrete conveying pump |
| CN102734235A (en) * | 2012-07-12 | 2012-10-17 | 三一重工股份有限公司 | Energy recovery hydraulic system and concrete conveying pump |
| CN102734112A (en) * | 2011-04-08 | 2012-10-17 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
| CN103031957A (en) * | 2012-12-13 | 2013-04-10 | 北汽福田汽车股份有限公司 | Control system and method for concrete machine |
| EP2855945B1 (en) | 2012-05-31 | 2018-03-14 | Putzmeister Engineering GmbH | Hydraulic system |
-
2011
- 2011-04-08 CN CN2011201010835U patent/CN202001241U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734112A (en) * | 2011-04-08 | 2012-10-17 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
| CN102734112B (en) * | 2011-04-08 | 2015-06-03 | 徐州徐工施维英机械有限公司 | Concrete pumping equipment and concrete conveying hydraulic system thereof |
| EP2855945B1 (en) | 2012-05-31 | 2018-03-14 | Putzmeister Engineering GmbH | Hydraulic system |
| CN102734236A (en) * | 2012-07-12 | 2012-10-17 | 三一重工股份有限公司 | Pumping reversal hydraulic control system, control method and concrete conveying pump |
| CN102734235A (en) * | 2012-07-12 | 2012-10-17 | 三一重工股份有限公司 | Energy recovery hydraulic system and concrete conveying pump |
| CN102734236B (en) * | 2012-07-12 | 2013-04-03 | 三一重工股份有限公司 | Pumping reversal hydraulic control system, control method and concrete conveying pump |
| CN103031957A (en) * | 2012-12-13 | 2013-04-10 | 北汽福田汽车股份有限公司 | Control system and method for concrete machine |
| CN103031957B (en) * | 2012-12-13 | 2014-02-19 | 北汽福田汽车股份有限公司 | Control system and method for concrete machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XCMG Schwing Machinery Co., Ltd. Assignor: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. Contract record no.: 2013320000351 Denomination of utility model: Concrete pumping equipment and concrete conveying hydraulic system thereof Granted publication date: 20111005 License type: Exclusive License Record date: 20130418 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: BUILDING MACHINERY CO., LTD., XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20131030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131030 Address after: 221004 Xuzhou economic and Technological Development Zone, Jiangsu Peach Road, No. 29 Patentee after: XCMG Schwing Machinery Co., Ltd. Address before: 221004 No. 19 Peach Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Building Machinery Co., Ltd., XCMG Construction Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |