CN204284041U - A kind of concrete pumping equipment tilt cylinder hydraulic system and concrete pumping equipment - Google Patents
A kind of concrete pumping equipment tilt cylinder hydraulic system and concrete pumping equipment Download PDFInfo
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- CN204284041U CN204284041U CN201420690017.XU CN201420690017U CN204284041U CN 204284041 U CN204284041 U CN 204284041U CN 201420690017 U CN201420690017 U CN 201420690017U CN 204284041 U CN204284041 U CN 204284041U
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- tilt cylinder
- pumping equipment
- concrete pumping
- hydraulic system
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Abstract
The utility model discloses a kind of concrete pumping equipment tilt cylinder hydraulic system and there is its concrete pumping equipment.Described concrete pumping equipment tilt cylinder hydraulic system comprises fuel tank, oil pump, tilt cylinder device and three position four-way directional control valve, described first actuator port of three position four-way directional control valve is communicated with described first tilt cylinder, second actuator port is communicated with described second tilt cylinder, at the meta of described three position four-way directional control valve, described filler opening is communicated with the first actuator port, the second actuator port, and described return opening disconnects.Adopt concrete pumping equipment tilt cylinder hydraulic system of the present utility model, when meta, two tilt cylinders are all communicated with oil pump, there is identical pressure, thus compression shock when tilt cylinder is restarted after having commutated in concrete pumping equipment tilt cylinder hydraulic system, spool and tilt cylinder piston caused can be reduced, to avoid making this system occur the fault such as leakage of oil, hydraulic element damage.
Description
Technical field
The utility model relates to engineering machinery field, particularly relates to a kind of concrete pumping equipment tilt cylinder hydraulic system and has its concrete pumping equipment.
Background technique
In the prior art, the tilt cylinder hydraulic system of concrete pumping equipment (as pump truck, Vehicle loaded pump, dragging pump etc.) the Median Function of valve group that uses be O type, so operationally easy to spool and the impact of tilt cylinder piston build-up of pressure, make hydraulic system occur the fault such as leakage of oil, hydraulic element damage.Specifically, the action of actuator is controlled by selector valve, and after commutation, spool is stopped at meta.Selector valve is four-way valve, and when meta, four mouths are not connected, but filler opening is communicated with oil pump, and pressure is higher.When again commutating, filler opening moment connects with the first actuator port or the second actuator port, because pressure at two ends is different, thus will produce compression shock.
Therefore wish that a kind of concrete pumping equipment tilt cylinder hydraulic system overcomes or at least to alleviate in the above-mentioned defect of prior art one or more.
Model utility content
The technical problem that the utility model solves is reduce the compression shock caused spool and tilt cylinder piston when tilt cylinder is restarted after having commutated in concrete pumping equipment tilt cylinder hydraulic system, to avoid making this system occur the fault such as leakage of oil, hydraulic element damage.
For this reason, the utility model provides a kind of concrete pumping equipment tilt cylinder hydraulic system, described concrete pumping equipment tilt cylinder hydraulic system comprises fuel tank, oil pump and tilt cylinder device, described tilt cylinder device comprises the first tilt cylinder, the second tilt cylinder and pendulum handle, described oil pump is used for the fluid in described fuel tank to the first tilt cylinder be mutually connected in series and the conveying of the second tilt cylinder, and order about described pendulum handle and swing between the first commutation position and the second commutation position around pivotal point
Described concrete pumping equipment tilt cylinder hydraulic system comprises further:
Three position four-way directional control valve, it has filler opening, return opening, the first actuator port and the second actuator port, described filler opening is communicated with oil pump by in-line, described return opening is communicated with fuel tank by return line, described first actuator port is communicated with described first tilt cylinder, and the second actuator port is communicated with described second tilt cylinder, at the meta of described three position four-way directional control valve, described filler opening is communicated with the first actuator port, the second actuator port, and described return opening disconnects.
Preferably, at described first commutation position place, the opplied moment of described first tilt cylinder to described pendulum handle equals the opplied moment of the second tilt cylinder to described pendulum handle; Further, at described second commutation position place, the opplied moment of described first tilt cylinder to described pendulum handle equals the opplied moment of the second tilt cylinder to described pendulum handle.
Preferably, described first tilt cylinder and the second tilt cylinder are identical tilt cylinders.
Preferably, described first actuator port is communicated with the rodless cavity of described first tilt cylinder, and described second actuator port is communicated with the rodless cavity of described second tilt cylinder, and the rod chamber of described first tilt cylinder is connected with the rod chamber of described second tilt cylinder.
Preferably, at described first commutation position place, the acting force arm of described first tilt cylinder to described pendulum handle equals the acting force arm of the second tilt cylinder to described pendulum handle; Further, at described second commutation position place, the acting force arm of described first tilt cylinder to described pendulum handle equals the acting force arm of the second tilt cylinder to described pendulum handle.
Preferably, described concrete pumping equipment tilt cylinder hydraulic system comprises accumulator further, and described accumulator is communicated with described in-line, for storing and releasing liquid pressure energy.
Preferably, described concrete pumping equipment tilt cylinder hydraulic system comprises relief valve further, and described relief valve is arranged between described in-line and described return line, to limit the pressure maximum in described in-line.
Preferably, described concrete pumping equipment system comprises Decompression valves further, and described Decompression valves is arranged between described in-line and described return line, for carrying out pressure release to described in-line.
Preferably, described three position four-way directional control valve is solenoid valve.
The utility model also provides a kind of concrete pumping equipment, and described concrete pumping equipment comprises concrete pumping equipment tilt cylinder hydraulic system as above.
Adopt concrete pumping equipment tilt cylinder hydraulic system of the present utility model, when meta, two tilt cylinders are all communicated with oil pump, there is identical pressure, thus compression shock when tilt cylinder is restarted after having commutated in concrete pumping equipment tilt cylinder hydraulic system, spool and tilt cylinder piston caused can be reduced, to avoid making this system occur the fault such as leakage of oil, hydraulic element damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the concrete pumping equipment tilt cylinder hydraulic system according to the utility model first embodiment.
Fig. 2 is the schematic diagram of the tilt cylinder device of the tilt cylinder of concrete pumping equipment shown in Fig. 1 hydraulic system.
Reference character:
| 1 | Oil pump | 7 | Fuel tank |
| 2 | Accumulator | 8 | First tilt cylinder |
| 3 | Three position four-way directional control valve | 9 | First piston |
| 4 | Relief valve | 10 | Second tilt cylinder |
| 5 | Decompression valves | 11 | Second piston |
| 6 | Pendulum handle |
Embodiment
The object implemented for making the utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, are further described in more detail the technological scheme in the utility model embodiment.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the utility model protection domain can not be interpreted as.
Fuel tank, oil pump and tilt cylinder device is comprised according to concrete pumping equipment tilt cylinder hydraulic system of the present utility model, described tilt cylinder device comprises the first tilt cylinder, the second tilt cylinder and pendulum handle, described oil pump is used for by the fluid in described fuel tank to the first tilt cylinder of mutual serial connection and the conveying of the second tilt cylinder, and orders about described pendulum handle and swing between the first commutation position and the second commutation position around pivotal point.Described concrete pumping equipment tilt cylinder hydraulic system comprises three position four-way directional control valve further, described three position four-way directional control valve has filler opening, return opening, the first actuator port and the second actuator port, described filler opening is communicated with oil pump by in-line, described return opening is communicated with fuel tank by return line, described first actuator port is communicated with described first tilt cylinder, second actuator port is communicated with described second tilt cylinder, at the meta of described three position four-way directional control valve, described filler opening is communicated with the first actuator port, the second actuator port, and described return opening disconnects.
Adopt concrete pumping equipment tilt cylinder hydraulic system of the present utility model, when meta, two tilt cylinders are all communicated with oil pump, there is identical pressure, thus compression shock when tilt cylinder is restarted after having commutated in concrete pumping equipment tilt cylinder hydraulic system, spool and tilt cylinder piston caused can be reduced, to avoid making this system occur the fault such as leakage of oil, hydraulic element damage.
Fig. 1 is the structural representation of the concrete pumping equipment tilt cylinder hydraulic system according to the utility model first embodiment.Fig. 2 is the schematic diagram of the tilt cylinder device of the tilt cylinder of concrete pumping equipment shown in Fig. 1 hydraulic system.
As shown in Figure 1, concrete pumping equipment tilt cylinder hydraulic system comprises fuel tank 7, oil pump 1, three position four-way directional control valve 3 and tilt cylinder device.Described tilt cylinder device comprises the first tilt cylinder 8, second tilt cylinder 10 and pendulum handle 6.One end of first tilt cylinder 8 and the second tilt cylinder 10 is hinged to immovable point, and the other end is hinged to pendulum handle 6.Movable pendulum handle 6 is with to swing by the motion of first piston 9 and the second piston 11.The rod chamber of the first tilt cylinder 8 is communicated with the rod chamber of the second tilt cylinder 10.Be understandable that, the first tilt cylinder 8 and the second tilt cylinder 10 also can otherwise be connected in series mutually, as long as can realize the driving to pendulum handle.Such as, the rodless cavity of two tilt cylinders directly can be communicated with mutually, and the actuator port of rod chamber with three position four-way directional control valve 3 is connected.
Preferably, three position four-way directional control valve 3 is solenoid valves.And the valve of above-mentioned topic note, also preferably adopt solenoid valve.Thus, be convenient to carry out controlling and manipulate.
Oil pump 1 for being carried to the first tilt cylinder 8 of mutual serial connection and the second tilt cylinder 10 by the fluid in fuel tank 7, and orders about pendulum handle 6 and swings between the first commutation position and the second commutation position around pivotal point 22.
Three position four-way directional control valve 3 has oil inlet P, oil return inlet T, the first actuator port A and the second actuator port B.Oil inlet P is communicated with oil pump 1 by in-line, and oil return inlet T is communicated with fuel tank 7 by return line.First actuator port A is communicated with the rodless cavity of the first tilt cylinder 8, and the second actuator port B is communicated with the rodless cavity of the second tilt cylinder 10.
At the meta of three position four-way directional control valve 3, oil inlet P is communicated with the first actuator port A, the second actuator port B, and oil return inlet T disconnects.Thus when switching from meta in the working position on left side or right side, the moment after switching, the pressure of tilt cylinder device two ends (i.e. the first actuator port A of three position four-way directional control valve 3 and the second actuator port B) is identical, thus can not produce compression shock.That is, avoid the compression shock to spool and tilt cylinder piston, and then avoid making this system occur the fault such as leakage of oil, hydraulic element damage.
In order to make at described first commutation position place and the second commutation position place, tilt cylinder device can be in state of equilibrium, that is, at commutation position place, before commutation (namely when three position four-way directional control valve 3 is in meta), oscillatory forces is not produced to tilt cylinder device.Advantageously, at described first commutation position place, the opplied moment of the first tilt cylinder 8 to pendulum handle 6 equals the opplied moment of the second tilt cylinder 10 to pendulum handle 6; Further, at described second commutation position place, the opplied moment of the first tilt cylinder 8 to pendulum handle 6 equals the opplied moment of the second tilt cylinder 10 to pendulum handle 6.
In order to reduce exploitation and carrying cost, advantageously, the first tilt cylinder 8 and the second tilt cylinder 6 are identical tilt cylinders.Further, when the first tilt cylinder 8 is identical with the second tilt cylinder 6, first piston 9 and the second piston 11 are also identical, and have identical active area.Thus see Fig. 2, at described first commutation position place, the acting force arm a of the first tilt cylinder 8 to pendulum handle 6 equals the acting force arm b of the second tilt cylinder 10 to pendulum handle 6.Symmetrical with it, at the second commutation position place, the acting force arm of the first tilt cylinder 8 to pendulum handle 6 equals the acting force arm of the second tilt cylinder 10 to pendulum handle 6.
Realizing the identical of above-mentioned acting force arm, realizing by arranging the position of the articulating point 21,22,23,24 and 25 in Fig. 2.
See Fig. 1, illustrated concrete pumping equipment tilt cylinder hydraulic system comprises accumulator 2 further, and accumulator 2 is communicated with described in-line, for storing and releasing liquid pressure energy.
Preferably, as shown in the figure, described concrete pumping equipment tilt cylinder hydraulic system comprises relief valve 5 further, and relief valve 5 is arranged between described in-line and described return line, to limit the pressure maximum in described in-line.
Preferably, as shown in the figure, described concrete pumping equipment system comprises Decompression valves 4 further, and Decompression valves 4 is arranged between described in-line and described return line, for carrying out pressure release to described in-line.
By above-mentioned concrete pumping equipment tilt cylinder hydraulic system applications in concrete pumping equipment, the working stability of pumping equipment can be improved.Described concrete pumping equipment can be pump truck, Vehicle loaded pump and drag pump.
Finally it is to be noted: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit.Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (10)
1. a concrete pumping equipment tilt cylinder hydraulic system, comprise fuel tank, oil pump and tilt cylinder device, described tilt cylinder device comprises the first tilt cylinder, the second tilt cylinder and pendulum handle, described oil pump is used for the fluid in described fuel tank to the first tilt cylinder be mutually connected in series and the conveying of the second tilt cylinder, and order about described pendulum handle and swing between the first commutation position and the second commutation position around pivotal point
It is characterized in that,
Described concrete pumping equipment tilt cylinder hydraulic system comprises further:
Three position four-way directional control valve, it has filler opening, return opening, the first actuator port and the second actuator port, described filler opening is communicated with oil pump by in-line, described return opening is communicated with fuel tank by return line, described first actuator port is communicated with described first tilt cylinder, and the second actuator port is communicated with described second tilt cylinder, at the meta of described three position four-way directional control valve, described filler opening is communicated with the first actuator port, the second actuator port, and described return opening disconnects.
2. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 1, it is characterized in that, at described first commutation position place, the opplied moment of described first tilt cylinder to described pendulum handle equals the opplied moment of the second tilt cylinder to described pendulum handle; Further, at described second commutation position place, the opplied moment of described first tilt cylinder to described pendulum handle equals the opplied moment of the second tilt cylinder to described pendulum handle.
3. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 1, it is characterized in that, described first tilt cylinder and the second tilt cylinder are identical tilt cylinders.
4. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 3, it is characterized in that, described first actuator port is communicated with the rodless cavity of described first tilt cylinder, described second actuator port is communicated with the rodless cavity of described second tilt cylinder, and the rod chamber of described first tilt cylinder is connected with the rod chamber of described second tilt cylinder.
5. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 4, it is characterized in that, at described first commutation position place, the acting force arm of described first tilt cylinder to described pendulum handle equals the acting force arm of the second tilt cylinder to described pendulum handle; Further, at described second commutation position place, the acting force arm of described first tilt cylinder to described pendulum handle equals the acting force arm of the second tilt cylinder to described pendulum handle.
6. the tilt cylinder hydraulic system of the concrete pumping equipment according to any one of claim 1-5, is characterized in that, comprise accumulator further, described accumulator is communicated with described in-line, for storing and releasing liquid pressure energy.
7. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 6, it is characterized in that, comprise relief valve further, described relief valve is arranged between described in-line and described return line, to limit the pressure maximum in described in-line.
8. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 7, it is characterized in that, comprise Decompression valves further, described Decompression valves is arranged between described in-line and described return line, for carrying out pressure release to described in-line.
9. concrete pumping equipment tilt cylinder hydraulic system as claimed in claim 1, it is characterized in that, described three position four-way directional control valve is solenoid valve.
10. a concrete pumping equipment, is characterized in that, comprises concrete pumping equipment tilt cylinder hydraulic system as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690017.XU CN204284041U (en) | 2014-11-17 | 2014-11-17 | A kind of concrete pumping equipment tilt cylinder hydraulic system and concrete pumping equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690017.XU CN204284041U (en) | 2014-11-17 | 2014-11-17 | A kind of concrete pumping equipment tilt cylinder hydraulic system and concrete pumping equipment |
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| Publication Number | Publication Date |
|---|---|
| CN204284041U true CN204284041U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690017.XU Active CN204284041U (en) | 2014-11-17 | 2014-11-17 | A kind of concrete pumping equipment tilt cylinder hydraulic system and concrete pumping equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152397A (en) * | 2017-05-19 | 2017-09-12 | 北汽福田汽车股份有限公司 | Put valve oil cylinder, hydraulic system of pump and pumping equipment with it |
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2014
- 2014-11-17 CN CN201420690017.XU patent/CN204284041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152397A (en) * | 2017-05-19 | 2017-09-12 | 北汽福田汽车股份有限公司 | Put valve oil cylinder, hydraulic system of pump and pumping equipment with it |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |