CN204572604U - Revolution combined control valve, rotary system and hoist - Google Patents
Revolution combined control valve, rotary system and hoist Download PDFInfo
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- CN204572604U CN204572604U CN201520126339.6U CN201520126339U CN204572604U CN 204572604 U CN204572604 U CN 204572604U CN 201520126339 U CN201520126339 U CN 201520126339U CN 204572604 U CN204572604 U CN 204572604U
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Abstract
The utility model relates to a kind of revolution combined control valve, comprise: valve body, selector valve, electric proportional pressure control valve, described rotary motor has the first hydraulic fluid port and the second hydraulic fluid port, described first hydraulic fluid port and the second hydraulic fluid port are communicated with the second actuator port with the first actuator port of described selector valve with the second oil circuit through the first oil circuit respectively, and the first return opening of described selector valve is communicated with oil return circuit via described electric proportional pressure control valve with the second return opening; The filler opening of described selector valve is communicated with working connection.The utility model also provides a kind of rotary system and hoist.The utility model can improve the stationarity of rotary system overall process and provide free rotary function.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of revolution combined control valve, rotary system and hoist.
Background technique
Along with the development of medium and small tonnage hoist, more and more higher to the requirement of its rotary system stationarity and travelling comfort.Conventional hoist revolution combined control valve is that to realize system by a rotary valve with fixing buffer value steady, in it, configuration free skating rotary valve realizes rotary system free rotary function simultaneously, and the method has the advantage that system is simple, compact structure, level of integration are high and cost is low.But in order to meet the job requirement of car load turning course, the setting pressure of its buffer overflow valve is comparatively large, and stopped process mesohigh is at oil back chamber, and its compensator or trimmer pressure is general less, and rush relief valve and cannot open, its cushioning effect is poor.
Model utility content
The purpose of this utility model is to provide a kind of revolution combined control valve, rotary system and hoist, to improve stationarity and the free rotary function of rotary system overall process.
The utility model provides a kind of revolution combined control valve, comprise: valve body, selector valve, electric proportional pressure control valve, described rotary motor has the first hydraulic fluid port and the second hydraulic fluid port, described first hydraulic fluid port and the second hydraulic fluid port are communicated with the second actuator port with the first actuator port of described selector valve with the second oil circuit through the first oil circuit respectively, and the first return opening of described selector valve is communicated with oil return circuit via described electric proportional pressure control valve with the second return opening; The filler opening of described selector valve is communicated with working connection.
Further, rotary buffering valve, the first one-way valve and the second one-way valve is also comprised; Described rotary buffering valve is connected in parallel between described first oil circuit and the second oil circuit; The entrance of described first one-way valve is communicated with oil return circuit, and the outlet of described first one-way valve is communicated with the first actuator port of the first hydraulic fluid port of described rotary motor and described selector valve; Be communicated with oil return circuit with the entrance of described second one-way valve, and the outlet of described second one-way valve is communicated with the second actuator port of the second hydraulic fluid port of described rotary motor and described selector valve.
Further, also comprise the 3rd one-way valve and the 4th one-way valve, the described entrance of the 3rd one-way valve is communicated with the first return opening of described selector valve, and the outlet of described 3rd one-way valve is communicated with oil return circuit through described electric proportional pressure control valve; The described entrance of the 4th one-way valve is communicated with the second return opening of described selector valve, and the outlet of described 4th one-way valve is communicated with oil return circuit through described electric proportional pressure control valve.
Further, also comprise the first solenoid valve and the second solenoid valve, the actuator port of described first solenoid valve and the actuator port of the second solenoid valve control mouth with the left position of described selector valve with right position respectively and are communicated with, for controlling the commutation of described selector valve.
Further, the 3rd solenoid valve also comprising rotary motor break and be communicated with described rotary motor break, described valve body comprises motor braking hydraulic fluid port, and the actuator port of described 3rd solenoid valve is communicated with the rod chamber of described rotary motor break through described motor braking hydraulic fluid port.
Further, described valve body also comprises and controls return opening and control filler opening, the described return opening of the 3rd solenoid valve is communicated with the control return opening on described valve body, and the described filler opening of the 3rd solenoid valve is communicated with the control filler opening on described valve body; The filler opening of described first solenoid valve is communicated with the filler opening of described 3rd solenoid valve, and the return opening of described first solenoid valve is communicated with the control return opening of described valve body; The filler opening of described second solenoid valve is communicated with the control filler opening of described valve body, and the return opening of described second solenoid valve is communicated with the control return opening of described valve body.
The utility model is a kind of rotary system also, comprises above-mentioned revolution combined control valve.
The utility model is a kind of hoist also, comprises above-mentioned rotary system.
Revolution combined control valve of the present utility model, makes buffer overflow valve only be placed on oil circuit, without the need to taking into account that oil path high-pressure affects it, adopts variable buffering relief valve simultaneously, achieves rotary system overall process steadily and free rotary function.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the hydraulic diagram of a specific embodiment of revolution combined control valve of the present utility model.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 shows a specific embodiment of revolution combined control valve of the present utility model.As shown in Figure 1, revolution combined control valve in the present embodiment, comprise: valve body, selector valve 4, electric proportional pressure control valve 5, described rotary motor 1 has the first hydraulic fluid port and the second hydraulic fluid port, described first hydraulic fluid port and the second hydraulic fluid port are communicated with the second actuator port with first actuator port of the second oil circuit with described selector valve 4 through the first oil circuit respectively, and the first return opening of described selector valve 4 is communicated with oil return circuit via described electric proportional pressure control valve 5 with the second return opening; The filler opening of described selector valve 4 is communicated with working connection.Selector valve meta makes rotary system two hydraulic fluid ports by the direct oil sump tank of electric proportional pressure control valve, makes it be placed on oil circuit, avoid the impact of in-line on its force value, effectively improve the rigidity of rotary system in revolution overall process.
For guaranteeing Security, also comprise rotary buffering valve 6, first one-way valve 7 and the second one-way valve 8; Described rotary buffering valve 6 is connected in parallel between described first oil circuit and the second oil circuit; The entrance of described first one-way valve 7 is communicated with oil return circuit, and the outlet of described first one-way valve 7 is communicated with the first hydraulic fluid port of described rotary motor 1 and the first actuator port of described selector valve 4; Be communicated with oil return circuit with the entrance of described second one-way valve 8, and the outlet of described second one-way valve 8 is communicated with the second hydraulic fluid port of described rotary motor 1 and the second actuator port of described selector valve 4, thus ensure that the pressure balance of described rotary motor hydraulic fluid port.
For preventing adverse current, the 3rd one-way valve 9 and the 4th one-way valve 10 is also comprised in the present embodiment, the entrance of described 3rd one-way valve 9 is communicated with the first return opening of described selector valve 4, and the outlet of described 3rd one-way valve 9 is communicated with oil return circuit through described electric proportional pressure control valve 5; The entrance of described 4th one-way valve 9 is communicated with the second return opening of described selector valve 4, and the outlet of described 4th one-way valve 9 is communicated with oil return circuit through described electric proportional pressure control valve 5.
In order to realize the commutation control to described selector valve 4, the first solenoid valve Y1 and the second solenoid valve Y2 is also comprised in the present embodiment, the actuator port of described first solenoid valve Y1 controls mouth with the left position of described selector valve 4 with right position respectively with the actuator port of the second solenoid valve Y2 and is communicated with, and commutates for controlling described selector valve 4.
In initial state, need to pressurize to rotary motor break 2, so that brake described rotary motor 1, therefore, the 3rd solenoid valve Y3 also comprising rotary motor break 2 in the present embodiment and be communicated with described rotary motor break 2, described valve body comprises motor braking hydraulic fluid port Br, and the actuator port of described 3rd solenoid valve Y3 is communicated with the rod chamber of described rotary motor break 2 through described motor braking hydraulic fluid port Br.
In addition, described valve body also comprises and controls oil return inlet T ' and control oil inlet P ', the described return opening of the 3rd solenoid valve Y3 and the control oil return inlet T on described valve body ' be communicated with, the described filler opening of the 3rd solenoid valve Y3 and the control oil inlet P on described valve body ' be communicated with; The filler opening of described first solenoid valve Y1 is communicated with the filler opening of described 3rd solenoid valve Y3, the described return opening of the first solenoid valve Y1 and the control oil return inlet T of described valve body ' be communicated with; The described filler opening of the second solenoid valve Y2 and the control oil inlet P of described valve body ' be communicated with, the described return opening of the second solenoid valve Y2 and the control oil return inlet T of described valve body ' be communicated with.
The utility model is a kind of rotary system also, comprises above-mentioned revolution combined control valve.
The utility model is a kind of hoist also, comprises above-mentioned rotary system.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to embodiment of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope of the utility model request protection.
Claims (8)
1. a revolution combined control valve, it is characterized in that, comprise: valve body, selector valve (4), electric proportional pressure control valve (5), described rotary motor (1) has the first hydraulic fluid port and the second hydraulic fluid port, described first hydraulic fluid port and the second hydraulic fluid port are communicated with the second actuator port with first actuator port of the second oil circuit with described selector valve (4) through the first oil circuit respectively, and the first return opening of described selector valve (4) is communicated with oil return circuit via described electric proportional pressure control valve (5) with the second return opening; The filler opening of described selector valve (4) is communicated with working connection.
2. turn round combined control valve as claimed in claim 1, it is characterized in that, also comprise rotary buffering valve (6), the first one-way valve (7) and the second one-way valve (8); Described rotary buffering valve (6) is connected in parallel between described first oil circuit and the second oil circuit; The entrance of described first one-way valve (7) is communicated with oil return circuit, and the outlet of described first one-way valve (7) is communicated with the first actuator port of the first hydraulic fluid port of described rotary motor (1) and described selector valve (4); Be communicated with oil return circuit with the entrance of described second one-way valve (8), and the outlet of described second one-way valve (8) is communicated with the second hydraulic fluid port of described rotary motor (1) and the second actuator port of described selector valve (4).
3. turn round combined control valve as claimed in claim 1, it is characterized in that, also comprise the 3rd one-way valve (9) and the 4th one-way valve (10), the entrance of described 3rd one-way valve (9) is communicated with the first return opening of described selector valve (4), and the outlet of described 3rd one-way valve (9) is communicated with oil return circuit through described electric proportional pressure control valve (5); The entrance of described 4th one-way valve (9) is communicated with the second return opening of described selector valve (4), and the outlet of described 4th one-way valve (9) is communicated with oil return circuit through described electric proportional pressure control valve (5).
4. turn round combined control valve as claimed in claim 1, it is characterized in that, also comprise the first solenoid valve (Y1) and the second solenoid valve (Y2), the actuator port of described first solenoid valve (Y1) controls mouth with the left position of described selector valve (4) with right position respectively with the actuator port of the second solenoid valve (Y2) and is communicated with, for controlling described selector valve (4) commutation.
5. turn round combined control valve as claimed in claim 4, it is characterized in that, the 3rd solenoid valve (Y3) also comprising rotary motor break (2) and be communicated with described rotary motor break (2), described valve body comprises motor braking hydraulic fluid port (Br), and the actuator port of described 3rd solenoid valve (Y3) is communicated with the rod chamber of described rotary motor break (2) through described motor braking hydraulic fluid port (Br).
6. turn round combined control valve as claimed in claim 5, it is characterized in that, described valve body also comprises and controls return opening (T ') and control filler opening (P '), the return opening of described 3rd solenoid valve (Y3) is communicated with the control return opening (T ') on described valve body, and the filler opening of described 3rd solenoid valve (Y3) is communicated with the control filler opening (P ') on described valve body; The filler opening of described first solenoid valve (Y1) is communicated with the filler opening of described 3rd solenoid valve (Y3), and the control return opening of the return opening of described first solenoid valve (Y1) and described valve body (T ') be communicated with; The control filler opening of the filler opening of described second solenoid valve (Y2) and described valve body (P ') is communicated with, and the control return opening of the return opening of described second solenoid valve (Y2) and described valve body (T ') be communicated with.
7. a rotary system, is characterized in that, comprises the revolution combined control valve of claim 1 ~ 6 described in any one.
8. a hoist, is characterized in that, comprises rotary system as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126339.6U CN204572604U (en) | 2015-03-04 | 2015-03-04 | Revolution combined control valve, rotary system and hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520126339.6U CN204572604U (en) | 2015-03-04 | 2015-03-04 | Revolution combined control valve, rotary system and hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572604U true CN204572604U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520126339.6U Active CN204572604U (en) | 2015-03-04 | 2015-03-04 | Revolution combined control valve, rotary system and hoist |
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| CN (1) | CN204572604U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675783A (en) * | 2015-03-04 | 2015-06-03 | 徐州重型机械有限公司 | Rotary combined control valve, rotary system, crane and control method |
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
| CN106744452A (en) * | 2016-12-20 | 2017-05-31 | 柳州柳工液压件有限公司 | Hoisting brake system |
| CN113511601A (en) * | 2021-07-20 | 2021-10-19 | 三一汽车起重机械有限公司 | Rotary hydraulic system, engineering machinery and rotary control method |
-
2015
- 2015-03-04 CN CN201520126339.6U patent/CN204572604U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675783A (en) * | 2015-03-04 | 2015-06-03 | 徐州重型机械有限公司 | Rotary combined control valve, rotary system, crane and control method |
| CN105351276A (en) * | 2015-12-03 | 2016-02-24 | 徐州重型机械有限公司 | Rotation hydraulic control system and method and crane |
| CN106744452A (en) * | 2016-12-20 | 2017-05-31 | 柳州柳工液压件有限公司 | Hoisting brake system |
| CN113511601A (en) * | 2021-07-20 | 2021-10-19 | 三一汽车起重机械有限公司 | Rotary hydraulic system, engineering machinery and rotary control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |