CN212455031U - Single-cylinder bolt control valve group, horizontal bar bolt control system and crane - Google Patents
Single-cylinder bolt control valve group, horizontal bar bolt control system and crane Download PDFInfo
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- CN212455031U CN212455031U CN202021212993.6U CN202021212993U CN212455031U CN 212455031 U CN212455031 U CN 212455031U CN 202021212993 U CN202021212993 U CN 202021212993U CN 212455031 U CN212455031 U CN 212455031U
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- 239000003921 oil Substances 0.000 description 92
- 239000010720 hydraulic oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The utility model discloses a single cylinder bolt valve unit, horizontal bar bolt control system and hoist, include the single cylinder bolt control system of single cylinder bolt valve unit, and include single cylinder bolt control system's hoist. The single-cylinder bolt control valve group comprises a shuttle valve, a two-position three-way electromagnetic ball valve, a first one-way valve, a second one-way valve, a first two-position two-way electromagnetic valve and a second two-position two-way electromagnetic valve, wherein an oil outlet of the shuttle valve is connected with an oil inlet of the two-position three-way electromagnetic ball valve, and a first working oil port of the two-position three-way electromagnetic ball valve is also connected with an oil inlet of the first two-position two-way electromagnetic valve through the first one-way valve; and a second working oil port of the two-position three-way electromagnetic ball valve is connected with an oil inlet of a second two-position two-way electromagnetic valve, and an oil outlet of the second two-position two-way electromagnetic valve is also connected with an oil inlet of the first two-position two-way electromagnetic valve through a second one-way valve. The utility model discloses need not outside valves and independent oil supply when round pin control to the jar arm, relieve the continuous high-pressure state of core pipe simultaneously, simple structure, the reliability is high.
Description
Technical Field
The utility model relates to a jack-up engineering machine tool technical field especially relates to a single cylinder bolt valve unit, single cylinder bolt control system and hoist that flow was got certainly.
Background
The crane plays an important role in large-scale engineering machinery, and the telescopic mechanism of the crane comprises a rope type telescopic mechanism and a bolt type telescopic mechanism. The bolt type telescopic mechanism has the advantages of simple structure, arm weight reduction and the like, and is widely applied to large-tonnage cranes. In the single cylinder bolt control hydraulic system of the crane, the control of the cylinder arm pin is realized by continuously supplying high pressure oil to the core tube of the telescopic oil cylinder, and jointly controlling the core tube external valve group and the cylinder arm pin control valve group.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single cylinder bolt valve unit and single cylinder bolt control system that flow was got certainly need not outside valves and independent oil supply when round pin control to the cylinder arm, removes the continuous high-pressure state of core pipe simultaneously, simple structure, and the reliability is high.
Another object of the utility model is to provide a hoist including above-mentioned single cylinder bolt control system.
In order to achieve the purpose, the utility model provides a single cylinder bolt valve bank, including shuttle valve, two-position three-way electromagnetic ball valve, first check valve, second check valve, first two-position two-way solenoid valve and second two-position two-way solenoid valve, the oil inlet of shuttle valve connect two oil inlets of valve bank respectively, the oil outlet of shuttle valve connects the oil inlet of two-position three-way electromagnetic ball valve, the first working fluid port of two-position three-way electromagnetic ball valve connect the first oil outlet of valve bank, the first working fluid port of two-position three-way electromagnetic ball valve still connects the oil inlet of first two-position two-way solenoid valve through first check valve; a second working oil port of the two-position three-way electromagnetic ball valve is connected with an oil inlet of a second two-position two-way electromagnetic valve, an oil outlet of the second two-position two-way electromagnetic valve is connected with a second oil outlet of the control valve group, and an oil outlet of the second two-position two-way electromagnetic valve is also connected with an oil inlet of the first two-position two-way electromagnetic valve through a second one-way valve; an oil outlet of the first two-position two-way electromagnetic ball valve is connected with an oil return port of the control valve group.
Preferably, a first throttling damper is connected between an oil outlet of the shuttle valve and an oil inlet of the two-position three-way electromagnetic ball valve.
Preferably, a second throttling damper is connected between a first working oil port of the two-position three-way electromagnetic ball valve and the first check valve.
Preferably, a third throttling damper is connected between an oil outlet of the second two-position two-way solenoid valve and the second one-way valve.
Preferably, the oil inlet of the two-position three-way electromagnetic ball valve is also connected with an energy accumulator.
Preferably, the oil inlet of the two-position three-way electromagnetic ball valve is also connected with a pressure sensor.
The utility model also provides a single cylinder bolt control system, including flexible hydro-cylinder, jar round pin hydro-cylinder and arm round pin hydro-cylinder, still include third check valve, fourth check valve and above-mentioned single cylinder bolt valve group, two oil inlets of single cylinder bolt valve group connect respectively flexible hydro-cylinder have a pole chamber and no pole chamber, jar round pin hydro-cylinder is connected to the first oil-out of single cylinder bolt valve group, the second oil-out linking arm round pin hydro-cylinder of single cylinder bolt valve group, the core pipe of flexible hydro-cylinder is connected to the oil return opening of single cylinder bolt valve group, the oil tank is connected through third check valve and fourth check valve respectively to the core outside, the circulation opposite direction of third check valve and fourth check valve.
The utility model provides a single cylinder bolt valve unit has two oil inlets, two oil-outs and an oil return opening, wherein two oil inlets are followed telescopic cylinder's pole chamber and rodless chamber respectively and are got oily, cylinder round pin hydro-cylinder and arm round pin hydro-cylinder are connected respectively to two oil-outs, core pipe is connected to the oil return opening, the single cylinder bolt control system who adopts above-mentioned valves does not need external control and independent oil source on the one hand, it can the flow to ensure that the system lasts, on the other hand removes work well core pipe and is in pressure state always, the core pipe only is used for the oil return pressure release, system architecture has not only been simplified, and the reliability of system has effectively.
The utility model also provides a hoist, including above-mentioned single cylinder bolt control system.
Because the single-cylinder bolt control system has the technical effects, the crane comprising the single-cylinder bolt control system also has the same technical effects.
Drawings
Fig. 1 is a working schematic diagram of the single-cylinder bolt control system of the present invention.
The labels in the figure are: 1. a fourth check valve; 2. a third check valve; 3. a telescopic oil cylinder; 4. a core tube; 5. a cylinder pin cylinder; 6. an arm pin cylinder; 7. an accumulator; 8. a control valve group; 9. a shuttle valve; 10. a first throttle damper; 11. a first two-position two-way solenoid valve; 12. a second one-way valve; 13. a third throttling damper; 14. a second two-position two-way solenoid valve; 15. a first check valve; 16. a second damper; 17. a two-position three-way electromagnetic ball valve; 18. a pressure sensor; 19. and an oil tank.
Detailed Description
The utility model provides a single cylinder bolt valve unit, include the single cylinder bolt control system of single cylinder bolt valve unit, and include single cylinder bolt control system's hoist.
As shown in fig. 1, the single-cylinder bolt control valve group 8 comprises a shuttle valve 9, a two-position three-way electromagnetic ball valve 17, a first one-way valve 15, a second one-way valve 12, a first two-position two-way electromagnetic valve 11 and a second two-position two-way electromagnetic valve 14, wherein oil inlets a and b of the shuttle valve 9 are respectively communicated with two oil inlets P1 and P2 of the control valve group 8, an oil outlet c of the shuttle valve 9 is connected with an oil inlet P1 of the two-position three-way electromagnetic ball valve 17, a first working oil port a1 of the two-position three-way electromagnetic ball valve 17 is connected with a first oil outlet a of the control valve group 8, and a first working oil port a1 of the two-position three-way electromagnetic ball valve 17 is also connected with an oil inlet of the first two-position two-way; a second working oil port B1 of the two-position three-way electromagnetic ball valve 17 is connected with an oil inlet of a second two-position two-way electromagnetic valve 14, an oil outlet of the second two-position two-way electromagnetic valve 14 is connected with a second oil outlet B of the control valve group 8, and the oil outlet of the second two-position two-way electromagnetic valve 14 is also connected with an oil inlet of the first two-position two-way electromagnetic valve 11 through a second one-way valve 12; an oil outlet of the first two-position two-way electromagnetic ball valve is connected with an oil return port T of the control valve group 8.
In this embodiment, a first throttling damper 10 is connected between an oil outlet of the shuttle valve 9 and an oil inlet of the two-position three-way electromagnetic ball valve 17, a second throttling damper 16 is connected between a first working oil port a1 of the two-position three-way electromagnetic ball valve 17 and the first check valve 15, and a third throttling damper 13 is connected between an oil outlet of the second two-position two-way electromagnetic valve 14 and the second check valve 12. An oil outlet C of the shuttle valve 9 passes through a port C and a port D of the control valve group 8 and is respectively connected with the pressure sensor 18 and the energy accumulator 7.
Single cylinder bolt control system, including flexible hydro-cylinder 3, jar round pin hydro-cylinder 5 and arm round pin hydro-cylinder 6, still include third check valve 2, fourth check valve 1 and single cylinder bolt valve group 8, two oil inlets P1 and P2 of single cylinder bolt valve group 8 connect respectively flexible hydro-cylinder 3 have a pole chamber and no pole chamber, jar round pin hydro-cylinder 5 is connected to the first oil-out A of single cylinder bolt valve group 8, the second oil-out B linking arm round pin hydro-cylinder 6 of single cylinder bolt valve group 8, core pipe 4 of flexible hydro-cylinder 3 is connected to the oil return opening T of single cylinder bolt valve group 8, core pipe 4 outside is respectively through third check valve 2 and fourth check valve 1 connecting oil tank 19, the circulation opposite direction of third check valve 2 and fourth check valve 1.
What need explain at first, no matter telescopic cylinder 3 is in the state of stretching out or withdrawal state, or is at the in-process of stretching out or withdrawal, telescopic cylinder 3 have the pole chamber and no pole chamber always to establish high pressure oil, perhaps always have a chamber to have high pressure oil, consequently the utility model discloses a single cylinder bolt control system can keep the flow to take by oneself all the time.
Meanwhile, since the core tube 4 is in a stretched state and the volume is increased when the telescopic cylinder 3 is extended, in order to prevent the core tube 4 from causing negative pressure, a hydraulic cylinder (not shown) may be used to supply oil to the core tube 4 through the third check valve 2. Accordingly, when the telescopic cylinder 3 is retracted, the core tube 4 is in a compressed state, the volume is reduced, and in order to prevent the oil in the core tube 4 from flowing back to the oil tank 19 completely under the action of the dead weight, the fourth check valve 1 is arranged to increase the back pressure and seal the oil in the core tube 4.
When oil is taken from the rodless cavity of the telescopic oil cylinder 3, the specific working process of the single-cylinder bolt control system is as follows:
when the cylinder pin oil cylinder 5 stretches out, a p1 port and an a1 port of the two-position three-way electromagnetic ball valve 17 are communicated, the first two-position two-way electromagnetic valve 11 and the second two-position two-way electromagnetic valve 14 are cut off, and the hydraulic oil flow direction is as follows: a port P2 of the control valve group 8, a port b of the shuttle valve 9, a port c of the shuttle valve 9, a first throttling damper 10, a port P1 of the two-position three-way electromagnetic ball valve 17, a port a1 of the two-position three-way electromagnetic ball valve 17, a port A of the control valve group 8 and a cylinder pin oil cylinder 5.
Meanwhile, the hydraulic oil passes through the first throttle damper 10 and then reaches the pressure sensor 18 and the accumulator 7. The pressure sensor 18 feeds back pressure in real time, and the accumulator 7 stabilizes system pressure and absorbs impact.
When the cylinder pin oil cylinder 5 retracts, the hydraulic oil flow direction is as follows: the hydraulic control system comprises a cylinder pin oil cylinder 5, an opening A of a control valve group 8, a second throttling damper 16, a first one-way valve 15, a first two-position two-way electromagnetic valve 11, an opening T of the control valve group 8, a core pipe 4, a third one-way valve 2 and an oil tank 19.
When the arm pin oil cylinder 6 stretches out, the p1 port and the a1 port of the two-position three-way electromagnetic ball valve 17 are cut off, the first two-position two-way electromagnetic valve 11 is cut off, the second two-position two-way electromagnetic valve 14 is switched on, and the hydraulic oil flow direction is as follows: a port P2 of the control valve group 8, a port B of the shuttle valve 9, a port c of the shuttle valve 9, a first throttling damper 10, a port P1 of the two-position three-way electromagnetic ball valve 17, a port B1 of the two-position three-way electromagnetic ball valve 17, a second two-position two-way electromagnetic valve 14, a port B of the control valve group 8 and the arm pin oil cylinder 6.
Similarly, the hydraulic oil passes through the first throttle damper 10 and then reaches the pressure sensor 18 and the accumulator 7. The pressure sensor 18 feeds back pressure in real time, and the accumulator 7 stabilizes system pressure and absorbs impact.
When the arm pin oil cylinder 6 retracts, the hydraulic oil flow direction is as follows: an arm pin oil cylinder 6, a port B of a control valve group 8, a third throttling damper 13, a second one-way valve 12, a first two-position two-way electromagnetic valve 11, a port T of the control valve group 8, a core pipe 4, a third one-way valve 2 and an oil tank 19.
When oil is taken from the rod cavity of the telescopic oil cylinder 3, hydraulic oil flows into the port a of the shuttle valve 9 from the port P1 of the control valve group 8, and the rest of the working processes are the same as the previous working processes, which are specifically as follows:
when the cylinder pin oil cylinder 5 stretches out, a p1 port and an a1 port of the two-position three-way electromagnetic ball valve 17 are communicated, the first two-position two-way electromagnetic valve 11 and the second two-position two-way electromagnetic valve 14 are cut off, and the hydraulic oil flow direction is as follows: a port P1 of the control valve group 8, a port a of the shuttle valve 9, a port c of the shuttle valve 9, a first throttling damper 10, a port P1 of the two-position three-way electromagnetic ball valve 17, a port a1 of the two-position three-way electromagnetic ball valve 17, a port A of the control valve group 8 and a cylinder pin oil cylinder 5.
Meanwhile, the hydraulic oil passes through the first throttle damper 10 and then reaches the pressure sensor 18 and the accumulator 7. The pressure sensor 18 feeds back pressure in real time, and the accumulator 7 stabilizes system pressure and absorbs impact.
When the cylinder pin oil cylinder 5 retracts, the hydraulic oil flow direction is as follows: the hydraulic control system comprises a cylinder pin oil cylinder 5, an opening A of a control valve group 8, a second throttling damper 16, a first one-way valve 15, a first two-position two-way electromagnetic valve 11, an opening T of the control valve group 8, a core pipe 4, a third one-way valve 2 and an oil tank 19.
When the arm pin oil cylinder 6 stretches out, the p1 port and the a1 port of the two-position three-way electromagnetic ball valve 17 are cut off, the first two-position two-way electromagnetic valve 11 is cut off, the second two-position two-way electromagnetic valve 14 is switched on, and the hydraulic oil flow direction is as follows: a port P1 of the control valve group 8, a port a of the shuttle valve 9, a port c of the shuttle valve 9, a first throttling damper 10, a port P1 of the two-position three-way electromagnetic ball valve 17, a port B1 of the two-position three-way electromagnetic ball valve 17, a second two-position two-way electromagnetic valve 14, a port B of the control valve group 8 and the arm pin oil cylinder 6.
Similarly, the hydraulic oil passes through the first throttle damper 10 and then reaches the pressure sensor 18 and the accumulator 7. The pressure sensor 18 feeds back pressure in real time, and the accumulator 7 stabilizes system pressure and absorbs impact.
When the arm pin oil cylinder 6 retracts, the hydraulic oil flow direction is as follows: an arm pin oil cylinder 6, a port B of a control valve group 8, a third throttling damper 13, a second one-way valve 12, a first two-position two-way electromagnetic valve 11, a port T of the control valve group 8, a core pipe 4, a third one-way valve 2 and an oil tank 19.
In the working process, the first throttling damper 10 is mainly used for throttling, the second throttling damper 16 and the third throttling damper 13 are respectively used for buffering when the cylinder pin oil cylinder 5 and the arm pin oil cylinder 6 are reset, and the first check valve 15 and the second check valve 12 form logic interlocking of the cylinder pin oil cylinder 5 and the arm pin oil cylinder 6.
The utility model also provides a hoist, including above-mentioned single cylinder bolt control system. Because the single-cylinder bolt control system has the technical effects, the crane with the single-cylinder bolt control system also has the same technical effects, and the detailed description is omitted.
While the foregoing has been with reference to the particular illustrative embodiments of the invention, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a single cylinder bolt valve unit which characterized in that: the oil inlet of the shuttle valve is respectively connected with two oil inlets of a control valve group, the oil outlet of the shuttle valve is connected with the oil inlet of the two-position three-way electromagnetic ball valve, a first working oil port of the two-position three-way electromagnetic ball valve is connected with a first oil outlet of the control valve group, and the first working oil port of the two-position three-way electromagnetic ball valve is also connected with the oil inlet of the first two-position two-way electromagnetic valve through the first one-way valve; a second working oil port of the two-position three-way electromagnetic ball valve is connected with an oil inlet of a second two-position two-way electromagnetic valve, an oil outlet of the second two-position two-way electromagnetic valve is connected with a second oil outlet of the control valve group, and an oil outlet of the second two-position two-way electromagnetic valve is also connected with an oil inlet of the first two-position two-way electromagnetic valve through a second one-way valve; an oil outlet of the first two-position two-way electromagnetic ball valve is connected with an oil return port of the control valve group.
2. The single cylinder latch control valve pack of claim 1, wherein: and a first throttling damper is connected between an oil outlet of the shuttle valve and an oil inlet of the two-position three-way electromagnetic ball valve.
3. The single cylinder latch control valve pack of claim 2, wherein: and a second throttling damper is connected between a first working oil port of the two-position three-way electromagnetic ball valve and the first one-way valve.
4. The single cylinder plug control valve pack of claim 3, wherein: and a third throttling damper is connected between the oil outlet of the second two-position two-way electromagnetic valve and the second one-way valve.
5. The single cylinder latch control valve pack of claim 4, wherein: and the oil inlet of the two-position three-way electromagnetic ball valve is also connected with an energy accumulator.
6. The single cylinder plug control valve pack of claim 5, wherein: and the oil inlet of the two-position three-way electromagnetic ball valve is also connected with a pressure sensor.
7. The utility model provides a single cylinder bolt control system, includes flexible hydro-cylinder, jar round pin hydro-cylinder and arm round pin hydro-cylinder, its characterized in that: the single-cylinder bolt control valve group comprises a single-cylinder bolt control valve group, a first oil outlet, a second oil outlet, a core pipe, a first check valve, a second check valve, a fourth check valve and the single-cylinder bolt control valve group according to any one of claims 1 to 6, wherein two oil inlets of the single-cylinder bolt control valve group are respectively connected with a rod cavity and a rodless cavity of a telescopic oil cylinder, the first oil outlet of the single-cylinder bolt control valve group is connected with a cylinder pin oil cylinder, the second oil outlet of the single-cylinder bolt control valve group is connected with the cylinder pin oil cylinder, the oil return port of the single-cylinder bolt control valve group is connected with the core pipe of the telescopic oil cylinder, the outer portion of.
8. A crane, characterized by: a single cylinder deadbolt control system as recited in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212993.6U CN212455031U (en) | 2020-06-28 | 2020-06-28 | Single-cylinder bolt control valve group, horizontal bar bolt control system and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021212993.6U CN212455031U (en) | 2020-06-28 | 2020-06-28 | Single-cylinder bolt control valve group, horizontal bar bolt control system and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455031U true CN212455031U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021212993.6U Expired - Fee Related CN212455031U (en) | 2020-06-28 | 2020-06-28 | Single-cylinder bolt control valve group, horizontal bar bolt control system and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649022A (en) * | 2020-06-28 | 2020-09-11 | 河南卫华特种车辆有限公司 | Single-cylinder bolt control valve group, horizontal bar bolt control system and crane |
-
2020
- 2020-06-28 CN CN202021212993.6U patent/CN212455031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649022A (en) * | 2020-06-28 | 2020-09-11 | 河南卫华特种车辆有限公司 | Single-cylinder bolt control valve group, horizontal bar bolt control system and crane |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210202 |