CN102678651A - Hydraulic manual reversing and speed adjusting control valve - Google Patents
Hydraulic manual reversing and speed adjusting control valve Download PDFInfo
- Publication number
- CN102678651A CN102678651A CN2012101822502A CN201210182250A CN102678651A CN 102678651 A CN102678651 A CN 102678651A CN 2012101822502 A CN2012101822502 A CN 2012101822502A CN 201210182250 A CN201210182250 A CN 201210182250A CN 102678651 A CN102678651 A CN 102678651A
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- valve rod
- oil
- main valve
- oil duct
- oil cylinder
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Abstract
The invention creates and provides a hydraulic manual reversing and speed adjusting control valve, which includes a main valve body provided with an oil inlet, an oil return hole and oil passages, wherein a main valve rod used for changing the flow direction of fluid through changing the oil passages is arranged in the main valve body; a connection oil cylinder front cavity oil passage and a connection oil cylinder back cavity oil passage are arranged in the main valve body, and are perpendicular to the direction of the main valve rod respectively; an instant/micro-motion switching valve rod is arranged in the direction perpendicular to the oil inlet and extends to the oil inlet; a fine-tuning valve rod is arranged in the connection oil cylinder back cavity oil passage and is perpendicular to the direction of the main valve rod; and the connection oil cylinder back cavity oil passage is communicated with the main valve rod and the oil inlet through the oil passages. The control valve integrates the reversing and linear speed adjusting functions of the manually-operated valve in a hydraulic system, is provided with the instant/micro-motion switching valve rod, can be used for linear speed adjustment for the speed within a certain range, meanwhile has the functions of quickly advancing and quickly retreating, is more flexible in operation, and has a wide application range.
Description
Technical field
The invention belongs to technical field of hydraulic, concrete relate to a kind of both can manual reverse of direction, hydraulic control valve that again can linear speed regulation.
Background technique
Hand-hydraulic control valve in the market mostly can only be realized the commutation function of hydraulic system, can't realize the linear speed regulation of hydraulic system power unit; The valve piece that perhaps has has speed-regulating function; But do not have commutation function,, use yet underaction so it is less on application area, to compare.
Summary of the invention
The purpose of the invention provides a kind of hydraulic manual switching-over, speed regulating control valve; This control valve is integrated manually operated valve switching-over and linear speed regulation function in the hydraulic system; And be provided with fast, fine motion switches valve rod; Can realize control rate linear speed regulation within the specific limits, the function of F.F., rewind down is arranged again simultaneously.
The technological scheme of the invention: hydraulic manual switching-over, speed regulating control valve; Comprise have oil inlet hole, the main valve body of spill port and oil duct; Be provided with in the main valve body through changing the main valve stem that oil duct changes fluid flow direction; Have in the main valve body to connect oil cylinder ante-chamber oil duct and is connected oil cylinder back cavity oil duct, connect oil cylinder ante-chamber oil duct and to be connected oil cylinder back cavity oil duct vertical with the main valve stem direction respectively, on the direction vertical, be provided with quick/fine motion switching valve rod with oil inlet hole; Fast/fine motion switches valve rod and puts in the oil inlet hole; In connecting oil cylinder back cavity oil duct, be provided with the fine setting valve rod, the fine setting valve rod is vertical with the main valve stem direction, and connection oil cylinder back cavity oil duct communicates with oil inlet hole through oil duct and main valve stem.
The front end top one fine setting valve rod ball of fine setting valve rod, the fine setting valve rod is threaded with main valve body; Fast/front end top one that valve rod is switched in fine motion switches the valve rod ball, fast/fine motion switches valve rod and is threaded with main valve body.
The beneficial effect of the invention: switch valve rod and fine setting valve rod owing on main valve body, increase quick/fine motion, can realize control rate linear speed regulation within the specific limits, the function of F.F., rewind down is arranged again simultaneously, make operation more flexible, applied range; Because the front end top one fine setting valve rod ball of fine setting valve rod; The fine setting valve rod is threaded with main valve body; Fast/front end top one that valve rod is switched in fine motion switches the valve rod ball, fast/that the valve rod volume that is threaded with main valve body is switched in fine motion is little, makes that the control of flow of hydraulic oil is very flexible; The present invention safeguards simply to have excellent economy, goes for poor working environment.
Description of drawings
Fig. 1 is the structural representation of the invention.
The sectional view of fine setting valve rod when Fig. 2 travels forward state for the invention.
The sectional view of valve rod was switched in quick/fine motion when Fig. 3 travelled forward state for the invention.
The sectional view of spill port when Fig. 4 travels forward state for the invention.
Fig. 5 is the invention sectional view of motion state time fine setting valve rod backward.
Fig. 6 for the invention backward during motion state fast/fine motion switches the sectional view of valve rod.
Fig. 7 is the invention sectional view of spill port during motion state backward.
Embodiment
As shown in Figure 1; Hydraulic manual switching-over, speed regulating control valve; Comprise have oil inlet hole 8, the main valve body 2 of spill port 9 and oil duct 7, be provided with in the main valve body 2 through changing the main valve stem 4 that oil duct 7 changes fluid flow direction, connection oil cylinder ante-chamber oil duct 11 is arranged in the main valve body 2 and is connected oil cylinder back cavity oil duct 10; Connect oil cylinder ante-chamber oil duct 11 and to be connected oil cylinder back cavity oil duct 10 vertical with main valve stem 4 directions respectively; On the direction vertical with oil inlet hole 8, be provided with fast/fine motion switches valve rod 1, fast/and fine motion switches valve rod 1 and puts in the oil inlet hole 8, in connecting oil cylinder back cavity oil duct 10, is provided with fine setting valve rod 3; Fine setting valve rod 3 is vertical with main valve stem 4 directions, and connection oil cylinder back cavity oil duct 10 communicates with oil inlet hole 8 through oil duct 7 and main valve stem 4.
The front end top one fine setting valve rod ball 6 of fine setting valve rod 3, fine setting valve rod 3 is threaded with main valve body 2; Fast/front end top one that valve rod 1 is switched in fine motion switches valve rod ball 5, fast/fine motion switches valve rod 1 and is threaded with main valve body 2.
Working principle: the oil inlet hole 8 on the main valve body 2 is connected with oil return with the oil-feed of hydraulic power unit respectively with spill port 9, connects oil cylinder ante-chamber oil duct 11 and is connected oil cylinder back cavity oil duct 10 and is connected with power unit.The commutation function of main valve body 2 is the positions through adjustment main valve stem 4, changes the connection of oil duct 7, thus changed power unit forward or movement direction backward change.The linear speed regulation function of main valve body 2 mainly is the flow through change oil duct 7, thereby changes the travelling speed of power unit; Fine setting valve rod 3 front ends top one fine setting valve rod ball 6, fine setting valve rod 3 is threaded with main valve body 2, rotates fine setting valve rod 3; Make fine setting valve rod 3 realize moving axially; Like this, the fine setting valve rod ball 6 of its front end also moves axially under the effect of hydraulic pressure thereupon, changes the gap length of fine setting valve rod ball 6 and oil duct 7 ports; Thereby changed the flow of hydraulic oil, quick/fine motion is switched the working principle of valve rod 1 with fine setting valve rod 3.
Concrete working procedure: as shown in Figure 2; When main valve stem 4 is rotated counterclockwise 45 °; Oil inlet hole 8 be connected 10 conductings of oil cylinder back cavity oil duct; The power unit that after the conducting rear end is connected is done corresponding action, and the speed of action has dual mode: a kind of is fast moving, and another kind is that fine motion is moved.Continue as shown in Figure 2ly, main valve stem 4 is adjusted to working state forward, and inlet hole 8 communicates with being connected oil cylinder back cavity oil duct 10, but the oil duct flow rates controlled in fine setting valve rod 3 with fast/fine motion switches valve rod 1.As shown in Figure 3, when fast/when fine motion was switched valve rod 1 and be open mode, hydraulic oil directly entered into connection oil cylinder back cavity oil duct 10 with very large flow and enters into the oil cylinder back cavity, the power unit that the rear end is connected moves with very fast speed; When fast/when fine motion is switched valve rod 1 and be closed condition, close oil input channel through switching valve rod ball 5, make the oil pocket of the oil duct inflow rear end power unit that hydraulic oil can only be through fine setting valve rod 3.
As shown in Figure 2, fine setting valve rod 3 withstands the fine setting valve rod ball 6 of front end through screw thread, thereby adjusts the gap of fine setting valve rod ball 6 and oil duct junction; When the gap is big; Flow is big, and the quick action of power unit is when gap hour or when very close to each other; Make the travelling speed of power unit slack-off or slack, thereby realized the linear speed regulation that moves of rear end power unit.
As shown in Figure 4, when main valve stem 4 is in working state forward, connect oil cylinder ante-chamber oil duct 11 and reflux to spill port 9 through the oil duct on the main valve stem 4, make the oil of another oil pocket of power unit flow back to fuel tank, thereby make power unit continue to take exercises to a direction.
Like Fig. 5 and shown in Figure 6; When main valve stem 4 when clockwise rotating 45 °, power unit can move round about, this moment main valve stem 4 be in working state backward; Fast/valve rod 1 is switched in fine motion and fine setting valve rod 3 all cuts little ice, and that is to say that oil can not pass through this two valve rods.At this moment oil inlet hole 8 through the oil duct on the main valve stem 4 directly with is connected oil cylinder ante-chamber oil duct 11 and links to each other past oil cylinder ante-chamber oiling.As shown in Figure 7, when main valve stem 4 is in backward working state, makes spill port 9 again and be connected oil cylinder back cavity oil duct 10 and directly link to each other, make the oil of another oil pocket of power unit flow back to fuel tank, thereby power unit is continued to moving in the other direction.
Claims (2)
1. hydraulic manual switching-over, speed regulating control valve; The main valve body (2) that comprises have oil inlet hole (8), spill port (9) and oil duct (7); It is characterized in that: be provided with in the main valve body (2) through changing the main valve stem (4) that oil duct (7) changes fluid flow direction; The oil cylinder ante-chamber oil duct of connection (11) is arranged in the main valve body (2) and be connected oil cylinder back cavity oil duct (10); Connect oil cylinder ante-chamber oil duct (11) and to be connected oil cylinder back cavity oil duct (10) vertical with main valve stem (4) direction respectively; On the direction vertical with oil inlet hole (8), be provided with quick/fine motion and switch valve rod (1), quick/fine motion is switched valve rod (1) and is put in the oil inlet hole (8), in connecting oil cylinder back cavity oil duct (10), is provided with and finely tunes valve rod (3); Fine setting valve rod (3) is vertical with main valve stem (4) direction, and connection oil cylinder back cavity oil duct (10) communicates with oil inlet hole (8) through oil duct (7) and main valve stem (4).
2. hydraulic manual switching-over as claimed in claim 1, speed regulating control valve is characterized in that: the front end top one fine setting valve rod ball (6) of fine setting valve rod (3), and fine setting valve rod (3) is threaded with main valve body (2); Fast/front end top one that valve rod (1) is switched in fine motion switches valve rod ball (5), fast/fine motion switches valve rod (1) and is threaded with main valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182250.2A CN102678651B (en) | 2012-06-05 | 2012-06-05 | Hydraulic manual reversing and speed adjusting control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210182250.2A CN102678651B (en) | 2012-06-05 | 2012-06-05 | Hydraulic manual reversing and speed adjusting control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678651A true CN102678651A (en) | 2012-09-19 |
| CN102678651B CN102678651B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210182250.2A Active CN102678651B (en) | 2012-06-05 | 2012-06-05 | Hydraulic manual reversing and speed adjusting control valve |
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| Country | Link |
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| CN (1) | CN102678651B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213085A (en) * | 1975-07-18 | 1977-02-01 | Shin Meiwa Ind Co Ltd | Rotation controller of an oil pressure motor |
| CN2042526U (en) * | 1988-10-20 | 1989-08-09 | 湖南机床厂 | Hydraulic operated valve |
| CN2052837U (en) * | 1989-06-10 | 1990-02-14 | 付如松 | Hydraulic valve |
| CN101025235A (en) * | 2006-02-24 | 2007-08-29 | 罗伯特·博世有限公司 | Directional or flow control valve |
| CN202138985U (en) * | 2011-07-13 | 2012-02-08 | 周爱兴 | Oil return speed adjustable device for jack |
| CN202646214U (en) * | 2012-06-05 | 2013-01-02 | 营口亿祥机械有限公司 | Hydraulic manual reversing and speed regulation control valve |
-
2012
- 2012-06-05 CN CN201210182250.2A patent/CN102678651B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5213085A (en) * | 1975-07-18 | 1977-02-01 | Shin Meiwa Ind Co Ltd | Rotation controller of an oil pressure motor |
| CN2042526U (en) * | 1988-10-20 | 1989-08-09 | 湖南机床厂 | Hydraulic operated valve |
| CN2052837U (en) * | 1989-06-10 | 1990-02-14 | 付如松 | Hydraulic valve |
| CN101025235A (en) * | 2006-02-24 | 2007-08-29 | 罗伯特·博世有限公司 | Directional or flow control valve |
| CN202138985U (en) * | 2011-07-13 | 2012-02-08 | 周爱兴 | Oil return speed adjustable device for jack |
| CN202646214U (en) * | 2012-06-05 | 2013-01-02 | 营口亿祥机械有限公司 | Hydraulic manual reversing and speed regulation control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678651B (en) | 2015-05-20 |
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